CN113565502B - Efficient internal spray type transverse shaft type cantilever type heading machine cutting head - Google Patents
Efficient internal spray type transverse shaft type cantilever type heading machine cutting head Download PDFInfo
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- CN113565502B CN113565502B CN202110926183.XA CN202110926183A CN113565502B CN 113565502 B CN113565502 B CN 113565502B CN 202110926183 A CN202110926183 A CN 202110926183A CN 113565502 B CN113565502 B CN 113565502B
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- heading machine
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- 238000005520 cutting process Methods 0.000 title claims abstract description 198
- 239000007921 spray Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 27
- 238000009826 distribution Methods 0.000 claims abstract description 21
- 230000036346 tooth eruption Effects 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 238000005242 forging Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
- E21C35/23—Distribution of spraying-fluids in rotating cutter-heads
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/10—Rods; Drums
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Nozzles (AREA)
Abstract
The invention belongs to the technical field of transverse-axis type heading machine cutting mechanisms, and particularly relates to a high-efficiency internal spray type transverse-axis type cantilever type heading machine cutting head; the cutting head is arranged on the transverse shaft type cutting speed reducer and is communicated with a built-in waterway of the transverse shaft type cutting speed reducer, the cutting head comprises a cutting sleeve and cutting teeth, a nozzle is arranged on the peripheral wall of the cutting sleeve, an built-in water tank is arranged on the peripheral wall of the cutting sleeve, a water distribution pipeline is fixed in the built-in water tank, and a water outlet on the water distribution pipeline is connected with the nozzle; two grooves are formed in the inner peripheral wall of the cutting sleeve in the circumferential direction, the two grooves are respectively positioned in front of and behind the drain hole, the groove is embedded with a Gray ring, and the two Gray rings seal annular gaps in front of and behind the drain hole; the water inlet on the water distribution pipeline penetrates through the wall thickness of the cutting sleeve and penetrates out from between the two Gelai rings. The invention enriches the types and forms of the internal spray type transverse axis type cutting head, optimizes the internal spray path and effect, and improves the high efficiency and stability of the cutting operation.
Description
Technical Field
The invention belongs to the technical field of transverse-axis type heading machine cutting mechanisms, and particularly relates to an efficient internal spray type transverse-axis type cantilever type heading machine cutting head.
Background
The cantilever type heading machine can be divided into a longitudinal axis type cutting head and a transverse axis type cutting head according to the working mode of the cutting head, the longitudinal axis type cutting head is used as a part of a traditional cantilever type heading machine, but the transverse axis type cutting head has higher cutting efficiency than the longitudinal axis type cutting head, and the main differences and difficulties comprise the following: 1. the internal spraying plays a key role in reducing high temperature and dust generated during cutting operation of a cutting pick, and a spraying water channel in a longitudinal axis type cutting head normally enters from the outside of a speed reducer shell, reaches into a water cavity of the cutting head through an inner cavity of a cutting main shaft and is sprayed out through a linear nozzle of the cutting head. The transverse-axis type cutting head is not connected with the cutting main shaft any more, but is directly connected with the transverse-axis type speed reducer, and the difference of the appearance of the transverse-axis type cutting head is combined to lead to a closed water cavity which is not as large as that of the longitudinal-axis type cutting head, so that the spraying mode in the transverse-axis type cutting head is changed. 2. In order to achieve better cutting efficiency and roadway support conditions, the transverse-axis cutting head has a larger profile than the longitudinal-axis cutting head and receives a larger cutting torque, and the corresponding cutting head body and cutting pick holder should be different. Therefore, there is a need to provide an efficient internal spray transverse-axis heading machine cutterhead that addresses the above-described problems.
Disclosure of Invention
The invention aims to provide a high-efficiency inner spray type transverse shaft type cantilever type heading machine cutting head which can effectively improve cutting efficiency and prolong service life.
In order to achieve the above purpose, the invention provides an efficient inner spray type transverse axle type cantilever type heading machine cutting head; the cutting head is used for being arranged on the transverse shaft type cutting speed reducer and communicated with a built-in waterway of the transverse shaft type cutting speed reducer, the cutting head comprises a cutting sleeve and cutting teeth, and the cutting teeth are arranged around the peripheral wall of the cutting sleeve in a spiral line shape; the outer peripheral wall of the cutting sleeve is provided with a plurality of built-in water tanks which are linearly connected with the plurality of nozzles in a single group, a water distribution pipeline is fixed in each built-in water tank, and water outlets of the water distribution pipeline are correspondingly connected with the nozzles one by one; two grooves are formed in the inner peripheral wall of the cutting sleeve in the circumferential direction, the two grooves are respectively positioned in front of and behind the drain hole of the transverse-axis cutting speed reducer, the groove is internally embedded with a Gray ring, the inner ring of the Gray ring is connected with the shell of the transverse-axis cutting speed reducer in a sealing manner, and the two Gray rings seal annular gaps in front of and behind the drain hole; the water inlet on the water distribution pipeline penetrates through the wall thickness of the cutting sleeve and penetrates out from between the two Gelai rings.
Further, the cutting teeth are fixed on the surface of the cutting sleeve in an arrangement mode of 4 spiral lines and one line of teeth, the single-group nozzles are arranged in a row along the length direction of the cutting sleeve, the nozzle rows incline along the rotation direction of the cutting teeth, and the nozzle rows are arranged around the cutting sleeve.
Further, the cutting sleeve comprises a front cutting sleeve and a rear cutting sleeve which are sequentially connected along the axial direction, and the rear cutting sleeve comprises two conical cylinders with large ends connected; the front cutting sleeve is arc-shaped and is smoothly connected with the small end of the head of the rear cutting sleeve; the cutting sleeve is a flat head.
Further, the front cutting sleeve is welded with the rear cutting sleeve, and the shearing-resistant pin is radially inserted at the welding seam.
Further, the cutting teeth comprise tooth holders, check rings and pick-shaped cutting picks, the bottoms of the tooth holders are welded on the surfaces of the cutting sleeves by adopting J-shaped groove welding, and the pick-shaped cutting picks are arranged on the tooth holders through the check rings; the tooth holder is a forging piece made of 21CrNiMo6 material.
Further, the nozzle comprises a nozzle seat and a linear nozzle, wherein the nozzle seat is welded on the surface of the cutting sleeve, and the linear nozzle is arranged in the nozzle seat and is connected with the water outlet of the water distribution pipeline.
Further, the cutting head further comprises a reinforcing rib, and the reinforcing rib is welded on the front side of the nozzle seat along the rotation direction of the cutting head.
Further, a circle of wear-resisting plates are uniformly welded at the small end of the root of the rear cutting sleeve.
Further, the cutting sleeve is fastened to the output shaft of the transverse shaft type speed reducer by an octagon structure, an end cover and screws.
Compared with the prior art, the invention has the advantages that:
1. an internal spray type transverse-axis heading machine cutting mechanism disclosed in the patent of CN202010639008.8 is a typical structure of the existing internal spray type transverse-axis heading machine cutting mechanism as the closest prior art of the present invention. Compared with the transverse axis cutting head described in CN202010639008.8, the invention has the following advantages:
firstly, the invention cancels the water distribution disc at the outermost side of the transverse shaft type cutting head, the internal spray water channel directly enters the sealed space formed by two Grignard rings at the inner side of the cutting sleeve from the water outlet of the transverse shaft type cutting speed reducer shell, and the internal spray water channel flows to the linear spray nozzle in the nozzle seat through the water distribution pipeline in the internal water tank on the cutting sleeve to spray out, the way of the internal water tank of the cutting sleeve is reduced, and the internal water tank of the cutting sleeve can cover more cutting teeth, particularly reinforcing ribs are welded beside the nozzle seat, so that the stability of the nozzle seat is improved. And secondly, the cutting head is connected with the transverse-shaft type cutting speed reducer through an octagon structure, and is fastened with the transverse-shaft type cutting speed reducer through the end cover by using a screw, so that the convenience of the disassembly of the cutting head is greatly improved. Thirdly, the profile of the cutting sleeve is also changed, the cutting sleeve consists of an inverted cone shape and a large-radius arc shape, and the cutting sleeve consists of a small-angle inverted cone shape, a small-angle forward cone shape and a small-radius arc shape, so that the cutting torque can be increased, and the corner coal rocks at the bottoms of two sides of a roadway can be maximally reduced on the premise of ensuring the flatness of a cutting bottom plate, thereby providing good construction conditions for a supporting process (effectively increasing the supporting range of coal machine equipment at the bottom plate).
2. 4 spiral lines are adopted for arrangement of tooth seats on the surface of the cutting sleeve according to certain constraint conditions, so that cutting efficiency is optimized, meanwhile, smoothness of timely discharging coal rock scraps is improved, and therefore a guide plate required by a longitudinal axis cutting head is omitted. Meanwhile, the tooth holder is formed by forging the common 42CrMo material into the 21CrNiMo6 material, so that the tooth holder has good impact resistance and wear resistance, J-shaped grooves are formed in the bottom of the tooth holder, the welding strength is increased, the welding rate of the rear end of the tooth holder in the cutting process is reduced, and the effective life of the tooth holder is prolonged.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged partial schematic view at a in fig. 1.
Fig. 3 is a schematic structural view of the cutting head.
Fig. 4 is a cross-sectional view at A-A in fig. 3.
Fig. 5 is a partially enlarged schematic view at B in fig. 4.
Fig. 6 is a schematic view of the position of the nozzle on the cutting sleeve.
Fig. 7 is a cross-sectional view at K-K in fig. 6.
Fig. 8 is a schematic diagram of the structure of the water distribution pipeline.
Fig. 9 is a half cross-sectional view of a cutting sleeve.
Fig. 10 is a cross-sectional view at P-P in fig. 9.
Fig. 11 is a schematic structural view of a tooth holder.
Fig. 12 is a cross-sectional view at A-A in fig. 11.
In the figure: 1-a cutting head; 2-a horizontal axis type cutting speed reducer; 3-pick-shaped cutting pick; 4-a retainer ring; 5-Gelai circle; 5.1-grooves; 6-end caps; 7-a reducer housing; 8-screws; 9-cutting the sleeve; 10-tooth holder; 11-a wear plate; 12-a nozzle holder; 13-reinforcing ribs; 14-a water distribution pipeline; 15-linear nozzle; 16-a front cutting sleeve; 17-post-cutting sleeve; 18-a shear pin; 19-a built-in water tank; 20-drain holes.
Detailed Description
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
As shown in fig. 1; the utility model provides a high-efficient internal spray formula cross axle formula cantilever type entry driving machine cutting head, cutting head 1 is used for installing on horizontal axle type cutting reduction gear 2 to with the built-in water route intercommunication of horizontal axle type cutting reduction gear 2. The transverse-axis cutting speed reducer 2 is arranged in the speed reducer shell 7, and the cutting heads 1 are symmetrically arranged on two sides of the transverse-axis cutting speed reducer 2. The cutting head 1 includes a cutting sleeve 9 and cutting teeth, which are arranged in a spiral shape around the outer peripheral wall of the cutting sleeve 9. The outer peripheral wall of the cutting sleeve 9 is provided with nozzles which are inserted between cutting teeth, the nozzles are divided into a plurality of groups, the outer peripheral wall of the cutting sleeve is provided with a plurality of built-in water tanks 19, each built-in water tank 19 is linearly connected with a plurality of nozzles in a single group, a water distribution pipeline 14 is fixed in the built-in water tank 19, and water outlets on the water distribution pipeline 14 are connected with the nozzles in a one-to-one correspondence manner.
As shown in fig. 2 and 4; two grooves 5.1 are formed in the inner peripheral wall of the cutting sleeve 9 in a circumferential direction, the two grooves 5.1 are respectively positioned in front of and behind a drain hole of the transverse-axis cutting speed reducer, a Gray ring 5 is embedded in the grooves 5.1, an inner ring of the Gray ring 5 is in sealing connection with a shell of the transverse-axis cutting speed reducer 2, and annular gaps in front of and behind the drain hole are sealed by the two Gray rings 5; the water inlet (D-port as shown in fig. 8) in the water distribution line 14 passes through the wall thickness of the cutting sleeve 9 and out between the two gleeves 5.
As shown in fig. 1 and 3; the cutting teeth are fixed on the surface of the cutting sleeve 9 in an arrangement mode of 4 spiral lines and one line of teeth (a line of teeth represents the number of picks arranged on each layer, generally, the number of teeth of one line of teeth is a divisor of the number of spiral lines, for example, 3 spiral lines are provided with 1 tooth or 3 teeth, and 4 spiral lines are provided with 1 tooth or 2 teeth or 4 teeth), and each cutting head comprises 52 cutting teeth, so that the cutting efficiency is optimized.
As shown in fig. 6 and 7; the individual groups of nozzles are aligned in a longitudinal direction of the cutting sleeve 9, and the nozzle rows are inclined with the rotational direction of the cutting teeth, the nozzle rows being arranged uniformly around the cutting sleeve 9. The number of the nozzles is 10, each row contains 3 nozzles, the number of the built-in water tanks 19 is 10, and each built-in water tank 19 is linearly connected with 3 nozzles in the middle area of the cutting sleeve 9, as shown in fig. 8; the water outlets A, B, C on the water distribution pipeline 14 are connected with the nozzles in a one-to-one correspondence.
As shown in fig. 9 and 10; the cutting sleeve 9 comprises a front cutting sleeve 16 and a rear cutting sleeve 17 which are sequentially connected along the axial direction, and the rear cutting sleeve 17 comprises two conical cylinders with large ends connected; the front cutting sleeve 16 is arc-shaped and is smoothly connected with the small end of the head of the rear cutting sleeve 17; the cutting sleeve 9 is flat. The profile of the cutting sleeve 9 is composed of a small-angle inverted cone, a small-angle forward cone and a small-radius arc, so that the cutting torque can be increased, and meanwhile, the corner coal rocks at the bottom of two sides of a roadway are maximally reduced on the premise of ensuring the flatness of a cutting bottom plate, thereby providing good construction conditions for a supporting process (effectively increasing the supporting range of coal machine equipment at the bottom plate). In addition, the front cutting sleeve 16 and the rear cutting sleeve 17 are welded and connected, and the shearing-resistant pin 18 is radially inserted at the welding seam, so that the shearing resistance of the cutting sleeve during rotary cutting is improved.
As shown in fig. 11 and 12; the cutting teeth comprise a tooth holder 10, a retainer ring 4 and pick-shaped cutting teeth 3, wherein the tooth holder 10 is welded with the cutting sleeve 9 in a multi-layer multi-pass welding mode, the bottom of the tooth holder 10 is welded on the surface of the cutting sleeve 9 by adopting J-shaped groove welding, and the pick-shaped cutting teeth 3 are arranged on the tooth holder 10 through the retainer ring 4; the toothholder 10 is made of a 21CrNiMo6 material forging piece, and has good impact resistance and wear resistance. The J-shaped grooves are formed in the bottoms of the tooth holders, so that the welding strength is increased, the open welding rate of the rear ends of the tooth holders in the cutting process is reduced, and the service lives of the tooth holders are prolonged.
As shown in fig. 5; the nozzle comprises a nozzle seat 12 and a linear nozzle 15, wherein the nozzle seat 12 is welded on the surface of the cutting sleeve 9, and the linear nozzle 15 is arranged in the nozzle seat 12 and is connected with the water outlet of the water distribution pipeline 14.
As shown in fig. 6; the cutting head 1 further comprises a reinforcing rib 13, and the reinforcing rib 13 is welded on the front side of the nozzle seat 12 along the rotation direction of the cutting head 1. Reinforcing ribs 13 are welded at the stressed part of the nozzle seat 12 to improve stability. The water jet mount 12 can be adjusted to a greater extent than an embedded linear nozzle.
As shown in fig. 1 and 4; a circle of wear-resisting plates 11 are uniformly welded at the small end of the root of the rear cutting sleeve 17. The abrasion resistance at the small end of the root of the cutting sleeve 9 is improved, and the probability of coal rock fragments entering the transverse shaft type cutting speed reducer 2 is further reduced.
The cutting sleeve 9 is fastened to the output shaft of the transverse shaft reducer 7 by means of an octagon (regular octagon hole and regular octagon shaft co-operating structure, likewise hexagonal connection), by means of an end cap 6 and by means of screws 8. The assembly and disassembly are convenient, and compared with the connection mode (common spline connection, flange connection and the like) of the longitudinal axis cutting head and the cutting main shaft, the convenience of underground installation is improved.
The internal spraying working principle of the internal spraying type transverse shaft type heading machine cutting head is as follows: the external fluid flows into the sealed space formed by the two Grignard rings 5 through the inherent fluid channel in the transverse shaft type cutting speed reducer shell, then flows to the water spray 12 on the surface of the cutting sleeve 9 through the water distribution pipeline 14 in the built-in water tank 19 on the cutting sleeve 9, and is sprayed to the periphery of the tooth tip of the corresponding pick-shaped cutting pick 3 through the linear nozzle 15 in the water spray seat 12 in a mist mode, so that the high temperature and dust generated by the pick-shaped cutting pick 3 during cutting operation of the cutting head are reduced, the cutting efficiency is improved, and the service life of the pick-shaped cutting pick is prolonged.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The cutting head (1) is used for being mounted on a transverse shaft type cutting speed reducer (2) and is communicated with a built-in waterway of the transverse shaft type cutting speed reducer (2), the cutting head (1) comprises a cutting sleeve (9) and cutting teeth, and the cutting teeth are arranged around the peripheral wall of the cutting sleeve (9) in a spiral line shape;
the method is characterized in that: the cutting sleeve (9) is characterized in that nozzles are inserted between cutting teeth on the peripheral wall of the cutting sleeve and divided into a plurality of groups, a plurality of built-in water tanks (19) are arranged on the peripheral wall of the cutting sleeve, each built-in water tank (19) is linearly connected with a plurality of nozzles in a single group, a water distribution pipeline (14) is fixed in each built-in water tank (19), and water outlets on the water distribution pipeline (14) are correspondingly connected with the nozzles one by one; two grooves (5.1) are formed in the inner peripheral wall of the cutting sleeve (9) in a circumferential direction, the two grooves (5.1) are respectively positioned in front of and behind a drain hole of the transverse shaft type cutting speed reducer, the grooves (5.1) are internally embedded with Gray rings (5), an inner ring of each Gray ring (5) is connected with a shell of the transverse shaft type cutting speed reducer (2) in a sealing manner, and annular gaps in front of and behind the drain hole are sealed by the two Gray rings (5); the water inlet on the water distribution pipeline (14) penetrates through the wall thickness of the cutting sleeve (9) and penetrates out from the space between the two Griley rings (5);
the cutting sleeve (9) comprises a front cutting sleeve (16) and a rear cutting sleeve (17) which are sequentially connected along the axial direction, and the rear cutting sleeve (17) comprises two conical cylinders with large ends connected; the front cutting sleeve (16) is arc-shaped and is smoothly connected with the small end of the head of the rear cutting sleeve (17); the cutting sleeve (9) is a flat head.
2. The efficient internal spray horizontal-axis cantilever heading machine cutterhead of claim 1, wherein: the cutting teeth are fixed on the surface of the cutting sleeve (9) in a mode of arranging 4 spiral lines and one line of teeth, the single-group nozzles are arranged in a row along the length direction of the cutting sleeve (9), the nozzle rows incline along the rotation direction of the cutting teeth, and the nozzle rows are arranged around the cutting sleeve (9).
3. The efficient internal spray horizontal-axis cantilever heading machine cutterhead of claim 1, wherein: the front cutting sleeve (16) is welded with the rear cutting sleeve (17), and the shearing-resistant pin (18) is radially inserted at the welding seam.
4. The efficient internal spray horizontal-axis cantilever heading machine cutterhead of claim 2, wherein: the cutting teeth comprise tooth holders (10), check rings (4) and pick-shaped cutting picks (3), the bottoms of the tooth holders (10) are welded on the surface of a cutting sleeve (9) by adopting J-shaped groove welding, and the pick-shaped cutting picks (3) are arranged on the tooth holders (10) through the check rings (4); the tooth holder (10) is made of a 21CrNiMo6 material forging piece.
5. The efficient internal spray type horizontal shaft cantilever heading machine cutting head as defined in claim 4, wherein: the nozzle comprises a nozzle seat (12) and a linear nozzle (15), wherein the nozzle seat (12) is welded on the surface of the cutting sleeve (9), and the linear nozzle (15) is arranged in the nozzle seat (12) and is connected with a water outlet of the water distribution pipeline (14).
6. The efficient internal spray horizontal-axis cantilever heading machine cutterhead of claim 5, wherein: the cutting head is characterized by further comprising reinforcing ribs (13), and the reinforcing ribs (13) are welded on the front side of the nozzle seat (12) along the rotation direction of the cutting head (1).
7. The efficient internal spray horizontal-axis cantilever heading machine cutterhead of claim 1, wherein: a circle of wear-resistant plates (11) are uniformly welded at the small end of the root of the rear cutting sleeve (17).
8. The efficient internal spray horizontal-axis cantilever heading machine cutterhead of claim 1, wherein: the cutting sleeve (9) is fastened on the output shaft of the transverse shaft type speed reducer (7) through an eight-direction structure, an end cover (6) and a screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110926183.XA CN113565502B (en) | 2021-08-12 | 2021-08-12 | Efficient internal spray type transverse shaft type cantilever type heading machine cutting head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110926183.XA CN113565502B (en) | 2021-08-12 | 2021-08-12 | Efficient internal spray type transverse shaft type cantilever type heading machine cutting head |
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| CN113565502A CN113565502A (en) | 2021-10-29 |
| CN113565502B true CN113565502B (en) | 2023-09-22 |
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| EP4575179A1 (en) | 2023-12-22 | 2025-06-25 | Sandvik Mining and Construction G.m.b.H. | Roadheader and cutter head therefor |
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| CN109681202A (en) * | 2019-01-28 | 2019-04-26 | 黄山市徽州安华工程机械有限公司 | The spray dust-reducing system of development machine |
| CN210660072U (en) * | 2019-10-15 | 2020-06-02 | 牛一村 | Telescopic cutting device and roadheader |
| CN211737127U (en) * | 2019-12-18 | 2020-10-23 | 大同菲利普斯采矿机械制造有限公司 | Split type coal mining machine spiral drum |
| CN111779482A (en) * | 2020-07-06 | 2020-10-16 | 中国煤炭科工集团太原研究院有限公司 | An internal spray type horizontal axis roadheader cutting mechanism |
| CN112228060A (en) * | 2020-10-26 | 2021-01-15 | 中国煤炭科工集团太原研究院有限公司 | Method and device for controlling a cutting drum |
| CN112460246A (en) * | 2020-12-22 | 2021-03-09 | 中国煤炭科工集团太原研究院有限公司 | Internal circulation cooling cutting speed reducer of transverse shaft type tunneling machine |
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