CN120273716A - Spalling device and spalling device - Google Patents
Spalling device and spalling device Download PDFInfo
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- CN120273716A CN120273716A CN202510764190.2A CN202510764190A CN120273716A CN 120273716 A CN120273716 A CN 120273716A CN 202510764190 A CN202510764190 A CN 202510764190A CN 120273716 A CN120273716 A CN 120273716A
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Abstract
The disclosure relates to the technical field of rock and mineral exploitation, in particular to a spalling device and a spalling apparatus. The expansion joint comprises a central rod and an expansion piece, wherein the central rod is provided with a medium channel, the expansion piece is sleeved on at least part of the peripheral surface of the central rod, a sealing cavity is arranged between the expansion piece and the peripheral surface of the central rod, and the sealing cavity is communicated with the medium channel. The expansion member is configured such that at least a portion of the expansion member moves away from the central rod when the sealed chamber is filled with a medium. The safety of the expander is higher, the damage to the body of constructors can not be caused, the expander can be recycled, the cost of repeated expansion can be reduced, the expansion construction difficulty and the construction time to rocks and/or mineral products can be reduced by utilizing the expander, and in addition, the expander is wide in application range and strong in environmental adaptability.
Description
Technical Field
The disclosure relates to the technical field of rock and mineral exploitation, in particular to a spalling device and a spalling apparatus.
Background
Currently, in the field of rock and mineral exploitation, it is necessary to presplitting the roof of the goaf during exploitation of rock and/or mineral products. In the prior art, the roof of the goaf is subjected to presplitting joint cutting in a manner of blasting, hydraulic presplitting, CO 2 presplitting and the like. But the blasting mode can cause problems such as air pollution, the water presplitting mode can cause problems such as water resource waste, and the CO 2 presplitting mode can cause problems such as high technical construction difficulty.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The utility model aims at providing a spalling device and spalling device, this spalling device and spalling device's security is higher, the spalling cost is lower, the construction degree of difficulty is less, and application scope is wider, environmental suitability is stronger.
The present disclosure provides a spalling device comprising:
a central rod having a media channel;
The expansion piece is sleeved on at least part of the outer peripheral surface of the central rod, a sealing cavity is arranged between the expansion piece and the outer peripheral surface of the central rod, the sealing cavity is communicated with the medium channel, and the expansion piece is configured to move at least part of the expansion piece in a direction away from the central rod when the sealing cavity is filled with medium.
In one exemplary embodiment of the present disclosure, the expansion member includes:
the deformation element is sleeved on at least part of the peripheral surface of the central rod, and the sealing cavity is positioned between the deformation element and the peripheral surface of the central rod;
the expansion element is arranged on one side of the deformation element away from the central rod;
Wherein when the medium is filled in the sealed cavity, at least part of the deformation element can push the expansion element to move in the axial direction away from the central rod.
In one exemplary embodiment of the present disclosure, the deformation element is disposed around an outer circumferential surface of the central rod, and the spalling element is disposed around the outer circumferential surface of the deformation element.
In one exemplary embodiment of the present disclosure, in a circumferential direction of the center rod, an outer circumferential surface of the deformation element has a first outer circumferential portion and a second outer circumferential portion, the spalling element comprising:
An extrusion block surrounding the first outer peripheral portion;
And a telescopic member surrounding the second outer peripheral portion, and both ends of the telescopic member in the circumferential direction are connected to both ends of the pressing block in the circumferential direction, respectively.
In an exemplary embodiment of the present disclosure, the first peripheral portion includes at least two first sub-peripheral portions, the second peripheral portion includes at least two second sub-peripheral portions, and one of the second sub-peripheral portions is provided between any two of the first sub-peripheral portions;
The extrusion block comprises at least two sub extrusion blocks, the at least two sub extrusion blocks correspond to the at least two first sub peripheral parts, and each sub extrusion block surrounds the corresponding first sub peripheral part;
The telescopic members comprise at least two sub-telescopic members, at least two sub-telescopic members correspond to at least two second sub-peripheral portions, each sub-telescopic member surrounds the corresponding second sub-peripheral portion, and two ends of each sub-telescopic member are respectively connected with two adjacent sub-extrusion blocks.
In one exemplary embodiment of the present disclosure, the first peripheral portion includes two of the first sub-peripheral portions, the second peripheral portion includes two of the second sub-peripheral portions, and the two of the first sub-peripheral portions are disposed opposite to each other;
The extrusion block comprises two sub extrusion blocks, and the two sub extrusion blocks respectively encircle one first sub peripheral part.
In one exemplary embodiment of the present disclosure, two of the first sub-outer peripheral portions are symmetrically disposed by a reference line, and two of the sub-pressing blocks are symmetrically disposed by the reference line;
wherein the reference line is a virtual line passing through the axis of the central rod and perpendicular to the axis of the central rod.
In an exemplary embodiment of the present disclosure, the sub-compression block includes a middle portion and edge portions at both ends of the middle portion, the edge portions and the first sub-outer peripheral portion have a receiving space therebetween, and a portion of the sub-expansion member is further located in the receiving space.
In one exemplary embodiment of the present disclosure, the outer circumferential surface of the deformation element is in abutment with the inner circumferential surface of the spalling element.
Another aspect of the present disclosure provides a burst device comprising:
The expansion device comprises a shell, a shell cover and a shell, the expander is an upper part the expander is connected with the hydraulic pump;
And the medium filling device is communicated with the medium channel and is used for introducing medium into the medium channel.
The technical scheme provided by the disclosure can achieve the following beneficial effects:
The invention provides a spalling device which comprises a central rod and an expansion piece, wherein the central rod is provided with a medium channel, a sealing cavity is arranged between the expansion piece and the peripheral surface of the central rod, and the sealing cavity is communicated with the medium channel. The expansion member is configured such that at least a portion of the expansion member moves away from the central rod when the sealed chamber is filled with a medium.
Therefore, the pressure of the medium in the sealing cavity is utilized to push the expansion piece to move in the direction away from the center rod, so that the expansion piece is utilized to apply pressure to the area needing to be expanded, and a crack can be formed in the area needing to be expanded. Therefore, the difficulty of the expansion joint construction for rock and/or mineral products by using the expansion joint device is low, the working procedures are fewer, and a great amount of construction time and construction cost can be saved.
And, use the expander of this disclosure to carry out the explosion to rock and/or mineral products when carrying out the expansion construction and need not use the explosive to explode to can avoid releasing harmful gas, in order to guarantee that constructor's health can not receive harmful gas's harm. Meanwhile, as the pressure of the medium is utilized for the expansion of the expander, the expansion construction is easier to control relative to the explosive, so that the safety of the expansion construction is improved, and the danger to constructors is further avoided. Moreover, the present disclosure provides for a spalling device that is safer in storage and transportation than explosives.
Secondly, when the expander disclosed by the disclosure is used for carrying out the expansion construction, only a medium is required to be filled in the sealing cavity. Because the sealing chamber of the expander is smaller, the expansion construction can be completed by only a small amount of medium, and compared with the prior art, a large amount of cost can be saved. In addition, the type of the medium is not limited by the expander provided by the disclosure, and the expander can be liquid, gas or a gas-liquid mixture and the like, so that the application range and the environmental adaptability of the expander can be improved.
In addition, after the expander completes one-time expansion construction, the medium in the sealed cavity can be removed, so that the expansion piece is restored to the original position, the expander can be recycled, and the cost of multiple expansion construction can be reduced. Meanwhile, when the area needing to be expanded is too deep, the expander can be used for segmented expansion, so that the depth of different expansion areas can be met, and the application range and environmental adaptability of the expander are further improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 illustrates a schematic longitudinal cross-sectional view of a bulge tube, according to an exemplary embodiment of the present disclosure;
FIG. 2 shows a schematic diagram of section A-A of FIG. 1, according to an exemplary embodiment of the present disclosure;
FIG. 3 illustrates a schematic cross-sectional view of a spallation tube prior to expansion, in accordance with an exemplary embodiment of the present disclosure;
Fig. 4 illustrates a schematic cross-sectional view of a expanded burst pipe according to an exemplary embodiment of the present disclosure.
Reference numerals illustrate:
1. Center rod, 11, media channel, 111, first channel, 112, second channel, 12, rod portion, 13, first head portion, 14, second head portion;
2. expansion piece, 21, deformation element, 22, expansion element, 221, extrusion block, 2211, sub extrusion block, 22111, middle part, 22112, edge part, 222, expansion piece, 2221, sub expansion piece;
3. Sealing chamber, 4, reference line, 5, first fixed ring, 6, second fixed ring, 7, first gland, 8, second gland, 9, first sealing element, 10, second sealing element, 15, third sealing element, 16, first locking element, 161, first sub-locking element, 162, second sub-locking element, 17, second locking element, 171, third sub-locking element, 172, fourth sub-locking element.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.
Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.
The terms "a," "an," "the," "said" are used to denote the presence of one or more elements/components/etc., the terms "comprising" and "having" are used to denote an open-ended meaning and mean that there may be additional elements/components/etc., in addition to the listed elements/components/etc., and the terms "first" and "second" etc. are used merely as labels, and are not limiting in number of their objects.
The present disclosure provides a spalling device that may be applied in the field of rock mining, mineral exploitation, etc., for spalling a joint of rock and/or mineral. For example, in the coal exploitation process, the spalling device can be utilized to presplit the goaf of the roof, and the self-weight stress of the roof rock stratum and the pressure of the mine are utilized to realize the caving and filling of the mining area, so as to realize automatic roadway formation and coal pillar-free exploitation.
As shown in fig. 1 to 4, the expander provided by the present disclosure may include a central rod 1 and an expansion member 2, the central rod 1 may have a medium channel 11, the expansion member 2 is sleeved on at least a portion of the outer circumferential surface of the central rod 1, and a sealing chamber 3 is provided between the expansion member 2 and the outer circumferential surface of the central rod 1, the sealing chamber 3 is in communication with the medium channel 11, and a medium may enter the sealing chamber 3 through the medium channel 11. For example, the sealing chamber 3 may be a chamber naturally formed by leaving a gap between the outer peripheral surface of the center rod 1 and the inner peripheral surface of the expansion element 2, or may be a chamber structure additionally provided between the outer peripheral surface of the center rod 1 and the inner peripheral surface of the expansion element 2.
The expansion member 2 may be configured such that at least part of the expansion member 2 moves away from the central rod 1 when the sealed chamber 3 is filled with a medium. It will be appreciated that at least part of the expansion member 2 may be moved in a direction away from the axis of the central rod 1 during expansion, i.e. at least part of the expansion member 2 may be expanded in a direction away from the axis of the central rod 1, or at least part of the expansion member 2 may be moved in a direction extending the axis of the central rod 1 during expansion, i.e. at least part of the expansion member 2 may be expanded in a direction extending the axis of the central rod 1, or part of the expansion member 2 may be moved in a direction away from the axis of the central rod 1 during expansion, and part of the expansion member 2 may be moved in a direction extending the axis of the central rod 1 during expansion, i.e. at least part of the expansion member 2 may be expanded in a direction away from the axis of the central rod 1, and may be expanded in a direction extending the axis of the central rod 1. For example, the direction away from the axis of the central rod 1 may be perpendicular to the extending direction of the axis of the central rod 1, but is not limited thereto.
Therefore, the pressure of the medium in the sealing chamber 3 is utilized to push the expansion piece 2 to move away from the central rod 1, so that the expansion piece 2 is utilized to apply pressure to the area needing to be expanded, and a crack can be formed in the area needing to be expanded. Therefore, the difficulty of the expansion joint construction for rock and/or mineral products by using the expansion joint device is low, the working procedures are fewer, and a great amount of construction time and construction cost can be saved.
And, use the expander of this disclosure to carry out the explosion to rock and/or mineral products when carrying out the expansion construction and need not use the explosive to explode to can avoid releasing harmful gas, in order to guarantee that constructor's health can not receive harmful gas's harm. Meanwhile, as the pressure of the medium is utilized for the expansion of the expander, the expansion construction is easier to control relative to the explosive, so that the safety of the expansion construction is improved, and the danger to constructors is further avoided. Moreover, the present disclosure provides for a spalling device that is safer in storage and transportation than explosives.
Secondly, when the expander disclosed by the disclosure is used for carrying out the expansion construction, only the medium is required to be filled in the sealing cavity 3. Because the sealing chamber 3 of the expander is smaller, the expansion construction can be completed by only a small amount of medium, and compared with the prior art, a large amount of cost can be saved.
In addition, after the expander completes one-time expansion construction, the medium in the sealed cavity 3 can be removed, so that the expansion piece 2 is restored to the original position, the expander can be repeatedly and circularly used, and the cost of multiple expansion construction can be reduced.
Meanwhile, as the expander can be recycled, when the region needing to be expanded is too deep, the expander can be used for segmented expansion, so that the depths of different expansion regions can be met, and the application range and environmental adaptability of the expander are further improved. For example, when the length of the expander is 1 meter and the area to be expanded is 10 meters, the expander can be utilized to expand for 10 times, so that the length of the expander can be reduced, and the height limit of the underground roadway is met.
In some embodiments, the medium may be gas, liquid or a mixture of gas and liquid, for example, the medium may be oil, water, air, etc., and the type of the medium is not limited in the disclosure, and may be selected and set according to actual situations, which is within the scope of protection of the disclosure. Therefore, the type of the medium is not limited by the expander provided by the disclosure, and the application range and the environmental adaptability of the expander can be improved.
In some embodiments, as shown in FIGS. 1 and 2, the expansion member 2 may include a deformation element 21 and a spalling element 22. Wherein the deformation element 21 may be sleeved on at least part of the outer circumferential surface of the central rod 1, and the sealing chamber 3 may be located between the deformation element 21 and the outer circumferential surface of the central rod 1. The bursting element 22 may be arranged at the side of the deformation element 21 remote from the central rod 1, i.e. the bursting element 22 may be arranged at the outer circumferential side of the deformation element 21. Wherein at least part of the deformation element 21 is capable of pushing the bursting element 22 in a direction away from the axis of the central rod 1 when the sealing chamber 3 is filled with a medium. It will be appreciated that when the medium is filled in the sealed chamber 3, the filled medium may increase the pressure in the sealed chamber 3, causing the deformation element 21 to deform to move in a direction away from the central rod 1, so that the deformation element 21 may push the spalling element 22 during movement, causing the spalling element 22 to follow the deformation element 21, and thus causing the spalling element 22 to move in a direction away from the axis of the central rod 1.
The deformation element 21 may be an oil bag, an air bag, or the like, and the material of the deformation element 21 may be rubber. By the arrangement, the deformation element 21 can be guaranteed to have good deformation capability, the deformation element 21 can be enabled to have good restorability, and the deformation element can be restored to an initial state after the completion of the expansion construction, so that the deformation element is ready for the next expansion construction. Meanwhile, when the material of the deformation element 21 is rubber, the deformation element 21 can have better structural strength, and the problem that the deformation element 21 breaks after bearing larger pressure is avoided.
However, the shape changing member 21 is not limited thereto, and may be other members such as a spring. The material of the deformation element 21 may not be rubber, and for example, the material of the deformation element 21 may be a metal, a polymer material, or the like.
In some embodiments, as shown in FIGS. 1-4, the deforming member 21 may be disposed around the outer peripheral surface of the central rod 1, i.e., it is understood that the deforming member 21 may be 360 around the outer peripheral surface of the central rod 1. The spalling element 22 may be arranged around the outer circumference of the deformation element 21, i.e. it will be appreciated that the spalling element 22 may be arranged 360 ° around the outer circumference of the deformation element 21. By the arrangement, the stress uniformity of the deformation element 21 and the expansion element 22 can be increased, and the expansion effect of the expander can be improved.
When the deformation element 21 may be disposed around the outer peripheral surface of the center rod 1, the sealing chamber 3 may be disposed between the inner peripheral surface of the deformation element 21 and the outer peripheral surface of the center rod 1. I.e. the sealing chamber 3 may also surround the outer circumference of the central rod 1 by 360 deg..
As shown in fig. 2 to 4, in the circumferential direction of the center rod 1, the outer circumferential surface of the deformation element 21 may have a first outer circumferential portion and a second outer circumferential portion, and the expansion element 22 may include a pressing block 221 and a telescopic piece 222. Wherein the pressing block 221 may surround the first outer circumferential portion, the expansion piece 222 may surround the second outer circumferential portion, and both ends of the expansion piece 222 in the circumferential direction may be connected with both ends of the pressing block 221 in the circumferential direction, respectively. So arranged, by providing the extrusion block 221, the rock and/or mineral in the area where the spalling is required can be extruded, so that the rock and/or mineral extruded by the extrusion block 221 is spalled. And, because extrusion piece 221 only sets up in first periphery department to can utilize extrusion piece 221 to carry out directional spalling to rock and/or mineral products in the region that needs the spalling, with this spalling precision that can improve this spalling ware, avoid causing destructive phenomena such as collapse to produce, improved the security of spalling construction.
Meanwhile, by providing the expansion piece 222 surrounding the second outer peripheral portion, the deformation direction of the deformation element 21 can be restrained. For example, as shown in fig. 2 and 3, the expansion member 222 may be in a relaxed state when the deformation member 21 is not deformed. As shown in fig. 4, when the deformation element 21 deforms, the expansion piece 222 may be in a tensioned state, so that the deformation element 21 cannot expand in a direction close to the expansion piece 222, so that the deformation element 21 can only expand in a direction close to the extrusion block 221, so that the deformation element 21 can directionally push the extrusion block 221 to move in a predetermined direction, and the purpose of directional expansion is achieved.
The material of the extrusion block 221 may be a metallic material such as stainless steel, high strength steel, or the like. By doing so, the structural strength of the extrusion block 221 can be improved, and the extrusion capability of the extrusion block 221 to rocks and/or minerals can be improved. The material of the telescoping member 222 may be polyurethane to ensure its ability to flex. However, the materials of the pressing block 221 and the expansion member 222 may be other materials, and the present disclosure is not limited thereto.
The extrusion block 221 and the telescopic piece 222 can be integrally formed by an integral molding technology, and other connecting pieces or connecting materials are not needed to be used for connecting the extrusion block 221 and the telescopic piece 222, so that the connection points between the extrusion block 221 and the telescopic piece 222 can be reduced, and the connection strength between the extrusion block 221 and the telescopic piece 222 is improved. For example, the extrusion block 221 and the expansion member 222 may be integrally cast, but not limited thereto.
In addition, the extrusion block 221 and the expansion piece 222 may be integrally formed without adopting an integral molding technology, that is, the extrusion block 221 and the expansion piece 222 may be separately manufactured and then connected by using other connecting pieces or connecting materials. By this arrangement, the difficulty in manufacturing the extrusion block 221 and the expansion member 222 can be reduced.
In some embodiments, the first peripheral portion may include at least two first sub-peripheral portions, the second peripheral portion may include at least two second sub-peripheral portions, and one second sub-peripheral portion may be provided between any two first sub-peripheral portions, i.e., one first sub-peripheral portion may be provided between any two second sub-peripheral portions. For example, the first peripheral portion may have two first sub-peripheral portions and the second peripheral portion may have two second sub-peripheral portions, or the first peripheral portion may have three first sub-peripheral portions, the second peripheral portion may have three third sub-peripheral portions, etc., which may be selected and set as desired for directional burst.
As shown in fig. 2 to 4, the extrusion block 221 may include at least two sub-extrusion blocks 2211, the at least two sub-extrusion blocks 2211 may correspond to at least two first sub-outer circumferential portions, and each sub-extrusion block 2211 may surround the first sub-outer circumferential portion corresponding thereto. That is, when the first outer peripheral portion has two first sub-outer peripheral portions, the pressing block 221 may have two sub-pressing blocks 2211, and the two sub-pressing blocks 2211 may respectively surround one first sub-outer peripheral portion. When the first outer peripheral portion has three first sub-outer peripheral portions, the extrusion block 221 may have three sub-extrusion blocks 2211, and the three sub-extrusion blocks 2211 may respectively surround one first sub-outer peripheral portion and the like.
The expansion element 222 may include at least two sub-expansion elements 2221, the at least two sub-expansion elements 2221 may correspond to the at least two second sub-outer circumferential portions, and each sub-expansion element 2221 may surround the corresponding second sub-outer circumferential portion, that is, when the second outer circumferential portion has two second sub-outer Zhou Bushi, the expansion element 222 may have two sub-expansion elements 2221, and the two sub-expansion elements 2221 may surround one second sub-outer circumferential portion, respectively. When the second outer peripheral portion has three second sub-outer portions Zhou Bushi, the telescopic member 222 may have three sub-telescopic members 2221, and the three sub-telescopic members 2221 may respectively surround one second sub-outer peripheral portion, etc. Two ends of each sub expansion member 2221 may be connected to two adjacent sub compression blocks 2211, respectively. It can be appreciated that the number of the sub-expansion members 2221 is the same as the number of the sub-extrusion blocks 2211, so that both ends of each expansion member 222 can be respectively connected with two adjacent sub-extrusion blocks 2211.
According to the embodiment, by arranging at least two sub-extrusion blocks 2211 and at least two sub-telescopic parts 2221, the number of the directional expansion directions can be increased, so that the expansion device can complete the expansion work on a plurality of areas during one-time expansion construction, the expansion efficiency can be improved, the expansion time is further shortened, and the expansion cost is reduced.
In some embodiments, as shown in fig. 2 to 4, the first peripheral portion may include two first sub-peripheral portions, and the second peripheral portion may include two second sub-peripheral portions, which may be disposed opposite to each other. The extrusion block 221 may include two sub-extrusion blocks 2211, and the two sub-extrusion blocks 2211 may respectively surround a first sub-outer circumferential portion. By the arrangement, the two opposite areas can be simultaneously expanded in the one-time expansion construction process, so that the expansion efficiency is improved, and the probability of occurrence of destructive phenomena such as collapse and the like due to too many areas which are simultaneously expanded is avoided.
The two first sub-outer peripheral portions may be symmetrically disposed by the reference line 4, and the two sub-pressing blocks 2211 may be symmetrically disposed by the reference line 4. Wherein the reference line 4 may be a virtual line passing through the axis of the central rod 1 and perpendicular to the axis of the central rod 1. It should be noted that, since the reference line 4 is a virtual line, the reference line 4 does not necessarily exist in an actual structure. So set up, can make the shape and the size of two first sub periphery portions that set up relatively the same, the shape and the size of two sub extrusion pieces 2211 that set up relatively the same to the atress of two sub extrusion pieces 2211 that set up relatively is the same, and the pressure that applys two relative spalling regions is the same, guarantees that the spalling effect of spalling ware to each spalling region is the same, further improves the spalling effect and the security in the spalling process of spalling ware.
In some embodiments, the sub-compression block 2211 may include an intermediate portion 22111 and edge portions 22112 located at both ends of the intermediate portion 22111, the edge portions 22112 may have an accommodating space between the first sub-outer circumferential portion, and a portion of the sub-expansion 2221 may be further located in the accommodating space. Because the sub-expansion member 2221 is relaxed in the initial state, the space occupied by the sub-expansion member 2221 in the initial state is relatively large, and when the placement space of the sub-expansion member 2221 is too small, the sub-expansion member 2221 may protrude out of the sub-extrusion block 2211 too much, so that the expansion tube is damaged due to friction between the sub-expansion member 2221 and the hole wall in the process of being placed in the hole. Therefore, in this embodiment, by setting the accommodating space at the edge portion 22112, a part of the sub-expansion member 2221 can be placed by using the accommodating space, so that the sub-expansion member 2221 is prevented from protruding from the sub-extrusion block 2211 in a relaxed state, thereby reducing the damage probability of the sub-expansion member 2221 and improving the service stability and service life of the expansion member.
In some embodiments, as shown in fig. 1-4, the outer circumferential surface of the deformation element 21 may conform to the inner circumferential surface of the spalling element 22. By the arrangement, the gap between the deformation element 21 and the expansion element 22 can be eliminated, so that the deformation element 21 can immediately push the expansion element 22 to move when being deformed, and the working sensitivity of the expander is improved. However, the present disclosure is not limited thereto, and a gap may be formed between the outer circumferential surface of the deformation element 21 and the inner circumferential surface of the spalling element 22, and may be selected and set according to practical situations, which is within the scope of the present disclosure.
In some embodiments, the tie rod may be circular, oval, rectangular, hexagonal, etc. in cross-section. For example, when the cross section of the pull rod is circular, the deformation element 21 may be a circular ring, the expansion element may be a circular ring, and the extrusion block 221 in the expansion element may be arc-shaped, for example, in a "C" shape. When the cross section of the pull rod is elliptical, the deformation element 21 may be an elliptical ring, the expansion element may be an elliptical ring, and the extrusion block 221 in the expansion element may be arc-shaped, for example, in a "C" shape. When the cross section of the tie rod is rectangular, the deformation element 21 may be a rectangular ring, the expansion element may be a rectangular ring, and the extrusion block 221 in the expansion element may be a right-angled "C" shape, or the like.
In some embodiments, as shown in FIG. 1, the media channel 11 may include a first channel 111 and a second channel 112. Wherein the first channel 111 may extend from one end face of the central rod 1 to the other end face, and one end of the second channel 112 may communicate with the first channel 111, and the other end may communicate with the sealed chamber 3. By this arrangement, one curved medium passage 11 can be divided into two straight passages, so that the curved medium passage 11 is prevented from being directly provided in the center rod 1, and thus the difficulty in forming the medium passage 11 in the center rod 1 can be reduced.
The extension length of the first channel 111 can be smaller than half of the length of the central rod 1, and the medium quantity reserved in the first channel 111 in the expansion construction process can be reduced by the arrangement, so that the consumption of the medium can be reduced, and the purpose of efficient expansion is achieved. Further, the extension length of the first channel 111 may be less than one third of the length of the central rod 1, whereby the consumption of medium may be further reduced.
Further, the width of the second channel 112 may be smaller than the width of the first channel 111, so that the medium may generate a slot effect when flowing into the second channel 112 from the first channel 111, so as to increase the pressure of the medium entering the sealing chamber 3, so as to further increase the expansion effect of the expander.
The axis of the second channel 112 can be perpendicular to the axis of the first channel 111, so that the length of the second channel 112 can be minimized, the medium amount remained in the second channel 112 in the expansion construction process can be reduced, the consumption of the medium can be further reduced, the medium can reach the sealing chamber 3 more quickly, and the use sensitivity of the expander is improved.
In some embodiments, the expander may further include a first fixing ring 5 and a second fixing ring 6, and the first fixing ring 5 and the second fixing ring 6 may be sleeved on the outer circumferential surface of the central rod 1 and disposed at two ends of the expansion member 2 for fixing the expansion member 2.
In the expansion member 2, the length of the deformation element 21 may be greater than the length of the spalling element 22. The first fixing ring 5 and the second fixing ring 6 may be positioned at both ends of the burst element 22 and may be sleeved on the outer circumferential surface of the partial deformation element 21. The first securing ring 5 and the second securing ring 6 can be connected to a deformation element 21 for securing the expansion element 2.
The first fixing ring 5 and the second fixing ring 6 are integrally formed with the deformation element 21 through an integral forming technology, and other connecting pieces or connecting materials are not needed to be used for connecting the first fixing ring 5 and the second fixing ring 6 with the deformation element 21, so that the connection points between the first fixing ring 5 and the second fixing ring 6 and the deformation element 21 can be reduced, and the connection strength between the first fixing ring 5 and the second fixing ring 6 and the deformation element 21 is improved. For example, the first fixing ring 5 and the second fixing ring 6 may be integrally molded with the deformation member 21, but not limited thereto.
In addition, the first fixing ring 5 and the second fixing ring 6 and the deformation element 21 may be integrally formed without adopting an integral molding technology, that is, the first fixing ring 5 and the second fixing ring 6 and the deformation element 21 may be manufactured separately and then connected by using other connecting pieces or connecting materials. By this arrangement, the difficulty in manufacturing the first fixing ring 5, the second fixing ring 6 and the deformation element 21 can be reduced.
The expander may further comprise a first gland 7 and a second gland 8. The outer peripheral surface of the central rod 1 is sleeved with the first gland 7 and the second gland 8, the first gland 7 can be located on one surface of the first fixed ring 5, which faces away from the expansion piece 2, and the second gland 8 can be located on one surface of the second fixed ring, which faces away from the expansion piece 2, so that the expansion piece 2, the first fixed ring 5 and the second fixed ring 6 are limited and fixed in the axial direction of the central rod 1, and the expansion piece 2, the first fixed ring 5 and the second fixed ring 6 are prevented from falling off. And, the sealing chamber 3 can be blocked by providing the first gland 7 and the second gland 8, so that the air tightness of the sealing chamber 3 can be improved.
Further, the expander may further comprise a first seal 9 and a second seal 10. Wherein a first seal 9 may be provided between the first gland 7 and the first stationary ring 5 and may cover one end of the sealed chamber 3. A second seal 10 may be provided between the second gland 8 and the second stationary ring 6 and may cover the other end of the sealed chamber 3. By the arrangement, the air tightness of the sealing chamber 3 can be further improved, the problem of air leakage or liquid leakage of the sealing chamber 3 is avoided, and the normal operation of the expander is ensured. The first and second seals 9 and 10 may be sealing rings, but are not limited thereto.
The expander may further comprise a first locking member 16 and a second locking member 17. The first locking piece 16 can be sleeved on the outer peripheral surface of the central rod 1 and is arranged on one surface of the first gland 7, which faces away from the expansion piece 2, the second locking piece 17 can be sleeved on the outer peripheral surface of the central rod 1 and can be arranged on one surface of the second gland 8, which faces away from the expansion piece 2, so that each element between the first locking piece 16 and the second locking piece 17 is limited and fixed, the problem that each structure of the expander cannot be loosened or separated in the working process of the expander is solved, and the working stability of the expander is further improved.
The first locking member 16, the second locking member 17 and the outer circumferential surface of the central rod 1 may be connected, for example, the first locking member 16, the second locking member 17 and the outer circumferential surface of the central rod 1 may be connected by threads, so that the disassembly and the installation are convenient while the high connection strength is ensured, and the maintenance and the replacement of each component of the expander are convenient at a later stage. However, the first locking member 16, the second locking member 17 and the outer peripheral surface of the center rod 1 may be connected by welding, clamping, etc., which are all within the scope of the present disclosure, and may be selected and set according to actual needs.
First retaining member 16 may include a first sub-retaining member 161 and a second sub-retaining member 162. The first sub-locking member 161 may be sleeved on the outer circumferential surface of the central rod 1 and disposed on a surface of the first gland 7 facing away from the expansion member 2, and the second sub-locking member 162 may be sleeved on the outer circumferential surface of the central rod 1 and disposed on a surface of the first sub-locking member 161 facing away from the expansion member 2. By this arrangement, the limiting and fixing ability of the first locking member 16 can be further improved.
The second locking member 17 may include a third sub-locking member 171 and a fourth sub-locking member 172. The third sub-locking member 171 may be sleeved on the outer circumferential surface of the central rod 1 and disposed on a surface of the second gland 8 facing away from the expansion member 2, and the fourth sub-locking member 172 may be sleeved on the outer circumferential surface of the central rod 1 and disposed on a surface of the third sub-locking member 171 facing away from the expansion member 2. By this arrangement, the limit and fixing ability of the second locker 17 can be further improved.
In some embodiments, the center rod 1 may include a rod portion 12 and first and second head portions 13 and 14 at opposite ends of the rod portion 12. Wherein the width of stem 12 may be greater than the width of first head 13, and the width of stem 12 may also be greater than the width of second head 14.
The expansion member 2 may be fitted over the outer peripheral surface of the stem 12, and the first passage 111 may extend from one end of the first head 13 away from the stem 12 toward the second head 14. Because the width of the rod 12 is larger than the widths of the first head 13 and the second head 14, the structural strength of the rod 12 is superior to that of the first head 13 and the second head 14, and the expansion piece 2 is sleeved on the outer peripheral surface of the rod 12, so that the problem that the rod 12 is damaged due to the fact that the pressure in the sealing chamber 3 is large when the expander works can be avoided.
The second channel 112 may be disposed on the stem 12, and a space may be provided between the second channel 112 and the first gasket, so as to avoid the first gasket from being damaged due to a high pressure gas or liquid entering the sealed chamber 3 through the second channel 112 and causing a large impact on the first gasket.
Further, the first gland 7 and the first locking member 16 may be sleeved on the outer peripheral surface of the first head 13. Because the width of the rod portion 12 is larger than that of the first head portion 13, the joint of the rod portion 12 and the first head portion 13 is provided with a first step, and the first gland 7 can be abutted against the first step, so that the first gland 7 is arranged conveniently, and the limiting and fixing effects of the first gland 7 are improved.
The first sealing element 9 can also abut against the first step, so that the arrangement of the first sealing element 9 is facilitated, and the sealing effect of the first sealing element 9 can be improved.
The second fixing ring 6 may be disposed on the outer circumferential surface of the second head 14, and since the width of the stem 12 is greater than the width of the second head 14, the junction between the stem 12 and the second head 14 has a second step, and the second fixing ring 6 may abut against the second step, so as to facilitate the disposition of the second fixing ring 6. The second gland 8 and the second locking member 17 may be fitted around the outer peripheral surface of the second head 14.
In some embodiments, a third seal 15 may be provided between the second fixing ring 6 and the second step, and the third seal 15 may cover the sealing chamber 3 to further improve the air tightness of the sealing chamber 3. The third seal 15 may also be a seal ring, but is not limited thereto.
In some embodiments, a spalling device is provided. As shown in fig. 1-4, the fracturing device may include a fracturing unit and a media filling apparatus. Wherein, the the expander may be a expander as described above. The medium filling device may be in communication with the medium channel 11 for introducing a medium into the medium channel 11.
It should be noted that, in the above embodiment, the specific structure and the beneficial effects of the expander have been described in detail, so in this embodiment, the specific structure and the beneficial effects of the expander are not described in detail, and reference may be made to the specific description in the above embodiment, which is within the scope of protection of the present disclosure.
Because the fracturing device provided by the embodiment comprises the fracturing device. As shown in fig. 1 to 4, the expander may include a central rod 1 and an expansion member 2, the central rod 1 may have a medium channel 11, the expansion member 2 is sleeved on at least a portion of the outer circumferential surface of the central rod 1, and a sealing chamber 3 is provided between the expansion member 2 and the outer circumferential surface of the central rod 1, and the sealing chamber 3 is in communication with the medium channel 11. The medium output from the medium filling device can enter the sealed chamber 3 through the medium channel 11. The expansion member 2 may be configured such that at least part of the expansion member 2 moves away from the central rod 1 when the sealed chamber 3 is filled with a medium.
Therefore, the pressure of the medium in the sealing chamber 3 is utilized to push the expansion piece 2 to move away from the central rod 1, so that the expansion piece 2 is utilized to apply pressure to the area needing to be expanded, and a crack can be formed in the area needing to be expanded. Therefore, the difficulty of the expansion construction of rock and/or mineral products by using the expansion device is low, the working procedures are fewer, and a great amount of construction time and construction cost can be saved.
And, use this disclosed burst device to carry out the explosion to rock and/or mineral products when carrying out the burst construction and need not use the explosive to can avoid releasing harmful gas, in order to guarantee that constructor's health can not receive harmful gas's harm. Meanwhile, as the pressure of the medium is utilized for the expansion of the expander, the expansion construction is easier to control relative to the explosive, so that the safety of the expansion construction is improved, and the danger to constructors is further avoided. Moreover, the present disclosure provides a spalling device that is safer in storage and transportation than explosives.
Secondly, when the disclosed fracturing device is used for fracturing construction, only the medium needs to be filled in the sealed cavity 3. Because the sealing chamber 3 of the spalling device is smaller, the spalling construction can be completed by only a small amount of medium, and compared with the prior art, a large amount of cost can be saved. In addition, the type of the medium is not limited by the expander provided by the disclosure, and the expander can be liquid, gas or a gas-liquid mixture and the like, so that the application range and the environmental adaptability of the expander can be improved.
In addition, after the expansion device completes one-time expansion construction, the medium in the sealing chamber 3 of the expansion device can be removed, so that the expansion piece 2 is restored to the original position, the expansion device can be repeatedly and circularly used, and the cost of multiple expansion construction can be reduced.
Meanwhile, when the area needing to be expanded is too deep, the expander can be used for segmented expansion, so that the depth of different expansion areas can be met, and the application range and environmental adaptability of the expander are further improved.
In some embodiments, the medium filling apparatus may be a liquid pressurizing pump and/or a gas pressurizing pump, but is not limited thereto, and the medium filling apparatus may be other filling apparatuses, which is not particularly limited in this disclosure.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510764190.2A CN120273716B (en) | 2025-06-09 | 2025-06-09 | Cracker and cracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510764190.2A CN120273716B (en) | 2025-06-09 | 2025-06-09 | Cracker and cracking device |
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| Publication Number | Publication Date |
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| CN120273716A true CN120273716A (en) | 2025-07-08 |
| CN120273716B CN120273716B (en) | 2025-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202510764190.2A Active CN120273716B (en) | 2025-06-09 | 2025-06-09 | Cracker and cracking device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86205822U (en) * | 1986-08-13 | 1987-07-15 | 广东省地震局 | Rock cracking tool |
| WO1993010330A1 (en) * | 1991-11-22 | 1993-05-27 | Westboenergi Ab | Fracturing device |
| US5398998A (en) * | 1994-02-04 | 1995-03-21 | Aeroquip Corporation | Pressure actuated fracture device |
| JPH1061369A (en) * | 1996-08-12 | 1998-03-03 | Maki Yamamoto | Expandable cylindrical protective pipe made of steel for rock cracker |
| KR100851944B1 (en) * | 2007-10-18 | 2008-08-12 | 이상휴 | Outer tube assembly for vibration-free rock cutting device |
| CN115573664A (en) * | 2022-09-30 | 2023-01-06 | 山东科技大学 | A device for directional fracturing of rocks and a directional fracturing method |
| CN221462308U (en) * | 2023-12-20 | 2024-08-02 | 青岛松山机械有限公司 | Hydraulic expansion pipe |
| WO2025079002A1 (en) * | 2023-10-13 | 2025-04-17 | Xgs Energy, Inc. | Dual mode fracture tool and methods therefor |
-
2025
- 2025-06-09 CN CN202510764190.2A patent/CN120273716B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86205822U (en) * | 1986-08-13 | 1987-07-15 | 广东省地震局 | Rock cracking tool |
| WO1993010330A1 (en) * | 1991-11-22 | 1993-05-27 | Westboenergi Ab | Fracturing device |
| US5398998A (en) * | 1994-02-04 | 1995-03-21 | Aeroquip Corporation | Pressure actuated fracture device |
| JPH1061369A (en) * | 1996-08-12 | 1998-03-03 | Maki Yamamoto | Expandable cylindrical protective pipe made of steel for rock cracker |
| KR100851944B1 (en) * | 2007-10-18 | 2008-08-12 | 이상휴 | Outer tube assembly for vibration-free rock cutting device |
| CN115573664A (en) * | 2022-09-30 | 2023-01-06 | 山东科技大学 | A device for directional fracturing of rocks and a directional fracturing method |
| WO2025079002A1 (en) * | 2023-10-13 | 2025-04-17 | Xgs Energy, Inc. | Dual mode fracture tool and methods therefor |
| CN221462308U (en) * | 2023-12-20 | 2024-08-02 | 青岛松山机械有限公司 | Hydraulic expansion pipe |
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|---|---|
| CN120273716B (en) | 2025-09-05 |
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