CN110005411B - Split guide sliding shoe - Google Patents
Split guide sliding shoe Download PDFInfo
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- CN110005411B CN110005411B CN201910420600.6A CN201910420600A CN110005411B CN 110005411 B CN110005411 B CN 110005411B CN 201910420600 A CN201910420600 A CN 201910420600A CN 110005411 B CN110005411 B CN 110005411B
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- sliding shoe
- oil
- groove
- oil duct
- wear
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- 239000003921 oil Substances 0.000 claims description 210
- 239000000463 material Substances 0.000 claims description 39
- 239000010687 lubricating oil Substances 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 24
- 239000011707 mineral Substances 0.000 abstract description 24
- 238000005299 abrasion Methods 0.000 abstract description 15
- 238000005065 mining Methods 0.000 abstract description 9
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
-
- 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
- E21C35/08—Guiding the machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
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- 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)
- General Engineering & Computer Science (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention relates to a split guide sliding shoe, which comprises a main sliding shoe and a bottom hook, wherein a guide groove extending leftwards and rightwards is arranged at the front part of a main sliding shoe base of the main sliding shoe, an opening below the guide groove is penetrated leftwards and rightwards, the surface of the guide groove is provided with a front wear-resisting layer, a top wear-resisting layer and a rear wear-resisting layer which are sequentially connected end to end, the bottom hook comprises a bottom hook base and a bottom hook base, the left part and the right part of the bottom hook are respectively inserted into the rear part of the main sliding shoe base at the left part and the right part respectively, a positioning block is respectively inserted into the front and the rear parts of the insertion parts in the left and the right directions, a pin is respectively inserted into and fixed at the left and the right directions of the interface of each positioning block and the main sliding shoe, the top surface of the bottom hook base is forwards provided with the bottom hook wear-resisting layer beyond the rear part of the main sliding shoe base, and the front wear-resisting layer, the top wear-resisting layer and the rear wear-resisting layer are sequentially arranged to form a square frame opening. The invention can be used for a drum-type mining machine for mining high-hardness and high-abrasiveness mineral aggregate, and solves the problems of short service life of guide sliding shoes and serious equipment abrasion.
Description
Technical Field
The invention relates to a guide sliding shoe of a mining machine, which is of a split structure, is mainly suitable for use environments and occasions where the guide sliding shoe is seriously worn due to the exploitation of high-hardness and/or high-abrasion mineral materials and the like, and belongs to the technical field of underground mining machinery.
Background
For the mining mode of adopting the drum type miner to mine the high-hardness mineral aggregate, the upward trend of the machine body is greatly increased due to the reaction force generated by cutting the hard mineral aggregate, and the abrasion of the lower wear-resistant layer of the guide sliding shoe of the travelling system of the miner is serious. If the abrasion of the mined ore is very high, the abrasion of the lower abrasion-resistant layer is more serious, the service life of the guide sliding shoes is very low, and the service life of the walking transmission system is also greatly shortened. The abrasion of equipment parts caused by abrasion is great, and the exploitation benefits are seriously reduced.
In view of the above, it is proposed in the industry to add a counterweight on the side of the mining machine body near the guide shoe, but because the stress of the whole machine is different from that of cutting low-hardness mineral materials (such as soft coal, etc.) when cutting hard mineral materials, the increase of the counterweight will cause the increase of the wear of the top wear layer with a smaller area of the guide shoe, and the overall service life of the guide shoe is lower due to the influence of the top wear layer. Based on the problems and the working condition changes, the problems of service life and equipment abrasion loss of the guide sliding shoes when the drum miner mines high-hardness and high-abrasion mineral materials are difficult to solve at present.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a split guide sliding shoe, which can solve the problems of shortened service life and serious equipment abrasion loss of the guide sliding shoe when a drum-type mining machine is used for mining high-hardness and high-abrasion mineral materials.
The main technical scheme of the invention is as follows:
the utility model provides a split type direction shoe, includes main shoe, end colludes, locating piece, pin and leak material piece, main shoe and end collude bilateral symmetry structure, the front portion of main shoe base of main shoe is equipped with the guide way that extends about, link up about the guide way below opening, the surface of guide way is the preceding wearing layer, top wearing layer and the back wearing layer of head and tail connection in proper order, the end colludes and colludes the base with the end and each department of end and colludes the protruding extension of end, makes the left portion of end collude and the longitudinal cross section of right part all are the down T type, the left portion of end colludes and right part respectively with the rear portion of main shoe base in left and right sides upper and lower grafting, the rear portion bottom surface laminating of main shoe base is in on the top surface of end collude the base, and insert a locating piece in the front and back direction respectively, every the locating piece is in the left and right direction of the interface department of main shoe respectively inserts and is fixed with a pin, a portion of end colludes the bottom portion is located the bottom of end and colludes the base and is equipped with the bottom of end and leak material piece, the bottom is equipped with the bottom of end and leak material piece is equipped with the bottom of end and the bottom of the base, the end is equipped with the bottom of end and the leak material piece in proper order, the bottom is equipped with the bottom of end and leak material piece, the bottom is equipped with the bottom of end and the bottom of the bottom.
The material leakage opening of the material leakage block is preferably obliquely arranged downwards left or downwards right.
The cross section of the positioning block can be in a round corner rectangle, the rear end of the positioning block is provided with a transverse convex annular table, the positioning block is inserted into the main sliding shoe and the bottom hook from back to front, and the annular table is limited in a sinking groove formed in the rear end face of the main sliding shoe.
The main sliding shoe is characterized in that a counter bore section, a threaded hole section and a main sliding shoe arc surface are sequentially arranged on the main sliding shoe from the left end face and the right end face in a horizontal inward mode, a left-right extending positioning block arc surface is arranged on the surface of the positioning block, the main sliding shoe arc surface and the positioning block arc surface are spliced into a complete pin hole section, the pin hole section is coaxial with the counter bore section and the threaded hole section, the pin is sequentially provided with a pin head, a threaded shaft section and a pin shaft section, the pin head is axially limited in the counter bore section, the threaded shaft section is in threaded connection with the threaded hole section, and the pin shaft section is matched with the pin hole section.
The split guide sliding shoe is also preferably provided with a lubricating oil duct, an outlet of the lubricating oil duct is communicated with the surfaces of the top wear-resisting layer, the front wear-resisting layer, the rear wear-resisting layer and the bottom hook wear-resisting layer, and a main oil inlet of the lubricating oil duct is arranged on the top surface of the main sliding shoe base.
The lubricating oil duct comprises a front branch oil duct and a rear branch oil duct, wherein the front branch oil duct leads to the top wear-resistant layer and the front wear-resistant layer, and the rear branch oil duct leads to the rear wear-resistant layer and the bottom hook wear-resistant layer.
The front oil duct comprises a front oil duct, a front oil groove and a front gap which are sequentially connected, the front oil duct is a duct formed in a main slipper base body, the upper end of the front oil duct is communicated with the main oil inlet, the lower end of the front oil duct is communicated with the front oil groove, the top wear-resistant layer is arranged into two sections which are separated front and back, a small cover plate is arranged between the front section and the rear section of the top wear-resistant layer, the small cover plate is fixed on the main slipper, the front oil groove is arranged on the top surface of the small cover plate and extends front and back, and the front gap is a narrow gap reserved between the small cover plate and the front section and the rear section of the top wear-resistant layer respectively.
The rear branch oil duct may include a rear oil duct, an upper oil outlet, a lower oil duct and a lower oil outlet, wherein the upper end of the rear oil duct is communicated with the main oil inlet, the lower end is communicated with the upper oil duct, the upper oil duct is a groove which is formed on the front groove wall of the groove and extends up and down, the upper oil outlet is a hole which is formed on the main slipper and penetrates through the rear wear-resistant layer, the hole is communicated with the upper oil duct, the front surface of the bottom hook protrudes and the top surface of the bottom hook base is transited by a bottom hook inclined plane, the front groove wall of the groove on the main slipper is transited by a cavity inclined plane with the bottom surface of the rear part of the main slipper base, the lower oil duct is a gap between the bottom hook inclined plane and the cavity inclined plane, the upper end of the lower oil duct is communicated with the lower end of the upper oil duct, and the lower oil outlet is a vent which is formed on the bottom surface of the rear part of the main slipper base, and penetrates through the rear wear-resistant layer, and the rear end of the lower oil duct is communicated with the lower oil duct.
The beneficial effects of the invention are as follows:
according to the invention, through the selective installation of the leakage blocks in different inclined outlet directions, mineral aggregate which enters the guide sliding shoe is timely discharged through the leakage opening, and meanwhile, the condition that the outside material is reversely conveyed into the guide sliding shoe from the leakage opening is avoided, the influence of abrasive mineral aggregate on the friction surface of the guide sliding shoe is reduced from the source, and the abrasion of a walking transmission system is also reduced.
Through setting up the lubrication oil duct, can all play antifriction effect to direction skid shoe wearing layer, can prolong the life of wearing layer greatly, and then extension direction skid shoe's life-span.
The bottom hook which is worn out in advance and failed can be replaced by arranging the lower wear-resistant layer at the position with serious wear-resistant effect on the bottom hook which is another independent and detachable replacement part, so that the residual service life of the rest parts of the guide sliding shoe is effectively utilized, and the whole service life period of the guide sliding shoe is greatly prolonged. Meanwhile, the structure is simple, only the bottom hook is replaced, only the pin and the positioning block are removed, and the running gear assembly is not required to be removed, so that the replacement operation is convenient, and the maintenance time is greatly saved for field use.
Drawings
FIG. 1 is a front view of one embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a partial cross-sectional view of A-A of FIG. 1;
FIG. 5 is a D-D sectional view of FIG. 2;
FIG. 6 is a partial cross-sectional view (leak) of B-B of FIG. 1;
FIG. 7 is a cross-sectional view C-C of FIG. 1 (lubrication oil passage);
FIG. 8 is a longitudinal cross-sectional view of the pin;
FIG. 9 is a front view of an embodiment of the leak block;
FIG. 10 is a schematic view of the left face mineral aggregate conveying condition of the present invention using a leak block with a leak port inclined downwardly to the left;
FIG. 11 is a schematic view of the right face mineral aggregate conveying condition of the present invention using a leak block with a leak port inclined downwardly to the right;
fig. 12 is a schematic view showing the reverse entry of mineral aggregate from the guide shoe weep hole in the right working face mineral aggregate delivery state of the conventional guide shoe.
Description of the drawings: 1. a main slipper; 101. a groove; 102. a sliding shoe material leakage port; 1031. a front wear layer; 1032. a top wear layer; 1033. a rear wear layer; 104. a cavity inclined plane; 11. a slipper main face; 12. a slipper auxiliary surface; 13. a trough rear wall; 14. a slot front wall; 15. the outer wall of the groove; 16. the inner wall of the groove; 17. the upper groove surface of the sliding shoe; 18. a slipper lower groove surface; 19. a main slipper arc surface;
2. a bottom hook; 201. the bottom hook protrudes and stretches; 202. a bottom hook inclined plane; 203. a bottom hook wear-resistant layer; 21. a bottom hook main surface; 22. a bottom hook auxiliary surface; 23. the bottom hook protrudes from the rear side surface; 24. the bottom hook protrudes from the front side surface; 25. the bottom hook protrudes out of the outer side surface; 26. the bottom hook protrudes and stretches the inner side surface; 27. the bottom hook is provided with a groove surface; 28. a bottom hook lower groove surface; 293. a bottom hook material leakage opening;
3. a positioning block; 31. the top surface of the positioning block; 32. the bottom surface of the positioning block; 33. positioning the circular arc surface; 34. a positioning block oil groove; 341. an oil groove is arranged on the positioning block; 342. a positioning block lower oil groove;
4. a pin; 41. a threaded shaft section; 42. a pin shaft section;
5. a leakage block; 53. a material leakage opening of the material leakage block;
6. a screw;
7. a lubrication oil passage; 70. a main oil inlet; 71. a communication oil duct; 72. a rear oil passage; 721. an upper oil groove; 722. an upper oil outlet; 723. a lower oil groove; 724. a lower oil outlet; 725. an oil cleaning port; 73. a front oil passage; 731. a front oil inlet; 732. a front oil groove; 733. a front slit; 734. a small cover plate.
Detailed Description
The invention discloses a split guide sliding shoe, which comprises a main sliding shoe 1, a bottom hook 2, a positioning block 3, a pin 4 and a leakage block 5, wherein the main sliding shoe and the bottom hook are of a bilateral symmetry structure. The front part of the main slipper base of the main slipper is provided with a left-right extending guide groove, the lower part of the guide groove is opened and communicated left and right, and the surface of the guide groove is provided with a front wear-resistant layer 1031, a top wear-resistant layer 1032 and a rear wear-resistant layer 1033 which are connected end to end in sequence. The bottom hook comprises a bottom hook base and a left bottom hook protrusion 201 and a right bottom hook protrusion 201 on the bottom hook base, and the longitudinal cross sections of the left part and the right part of the bottom hook are approximately inverted T-shaped. The left part and the right part of the bottom hook are respectively spliced with the rear part of the main sliding shoe base at the left part and the right part. The bottom surface of the rear part of the main sliding shoe base falls on the top surface of the bottom hook base, and the two surfaces are kept in contact. The bottom surface of the rear part of the main sliding shoe base and the top surface of the bottom hook base can be a plane or a stepped surface. In the embodiment shown in the drawings, the main surface 11 of the sliding shoe and the auxiliary surface 12 of the sliding shoe are respectively contacted with the main surface 21 of the bottom hook and the auxiliary surface 22 of the bottom hook correspondingly so as to balance the force of the bottom hook in the vertical direction.
More specifically, the left and right parts of the rear part of the main slipper base are respectively provided with a groove 101 with a downward opening, the groove is provided with a groove front wall 14, a groove rear wall 13, a groove outer wall 15 and a groove inner wall 16, the bottom hook is correspondingly provided with a front side 24, a rear side 23, an outer side 25 and an inner side 26, the bottom hook is just embedded into the corresponding groove from bottom to top, the groove front wall and the groove rear wall are respectively in corresponding contact with the front side and the rear side, the front and rear limit of the bottom hook is realized, the groove outer wall and the groove inner wall are respectively in corresponding contact with the outer side and the inner side, and the left and right limit of the bottom hook is realized. The part of the bottom hook protruding and extending to be embedded with the groove is the inserting part of the bottom hook and the main sliding shoe. The positioning block is arranged in the groove in a penetrating mode through the bottom hook in a protruding mode, and is positioned and supported in the main sliding shoe up and down.
The positioning blocks are respectively inserted into the front and rear directions of the insertion part, and the pin is respectively inserted and fixed into the left and right directions of the interface of each positioning block and the main sliding shoe, which is positioned behind the groove. And one part of cylindrical surface of the pin is positioned in the positioning block, and the other part of cylindrical surface of the pin is positioned in the main sliding shoe.
And a sliding shoe leakage port 102 is arranged at the middle position of the left and right directions of the rear part of the main sliding shoe base and is used for allowing mineral aggregate entering the guide sliding shoe to leak downwards, so that the influence of the mineral aggregate on a transmission part in the guide sliding shoe is avoided. The middle part of the bottom hook base in the left-right direction is provided with a bottom hook leakage port 293 for the downward leakage of mineral aggregate entering the guide sliding shoe, so that the influence of the mineral aggregate on a transmission piece in the guide sliding shoe and a friction surface of the guide sliding shoe is avoided. The leakage block can be fixed on the bottom hook through a screw 6, the sliding shoe leakage port, the bottom hook leakage port and the leakage port 53 of the leakage block are sequentially communicated up and down, and mineral aggregate entering the guide sliding shoe passes through the sliding shoe leakage port, the bottom hook leakage port and the leakage port of the leakage block and then is transported out along with a transport stream in a downward direction.
The top surface of the bottom hook base is provided with a bottom hook wear-resistant layer 203 at a part which is far beyond the rear part of the main sliding shoe base, and the front wear-resistant layer, the top wear-resistant layer, the rear wear-resistant layer and the bottom hook wear-resistant layer are sequentially arranged to form a square frame opening for guiding the toothed rail.
When mining high-hardness and/or high-abrasion mineral aggregate, the wear of the bottom hook wear-resistant layer is more serious than that of other wear-resistant layers, and the service life is shorter. According to the invention, the guide sliding shoe is designed into a split structure mainly composed of the main sliding shoe and the bottom hook, and the bottom hook wear-resisting layer is arranged on the bottom hook, so that when the bottom hook wear-resisting layer can not meet the working requirement any more, only the partial structure of the bottom hook is needed to be replaced, the residual service life of the rest wear-resisting layers on the main sliding shoe can be continuously utilized, and the whole service life period of the guide sliding shoe is greatly prolonged.
The relative displacement between the bottom hook and the main sliding shoe in the up-down and left-right directions is limited by inserting the positioning block, and then the pin is inserted and fixed, so that the front-back position of the positioning block is fixed, and the bottom hook and the up-down inserting structure of the main sliding shoe are fixed into a whole. The whole split guide sliding shoe is simple in structure, the bottom hook can be replaced only by disassembling and assembling the positioning blocks and the pins, the running gear assembly and the like do not need to be disassembled, and the operation method greatly saves maintenance time for field use.
The sliding shoe material leakage opening and the bottom hook material leakage opening are vertical material leakage openings. The material leakage opening of the material leakage block is preferably obliquely arranged downwards left or downwards right, namely, the material leakage opening is obliquely arranged, so that the problem that the leakage effect or the material conveying reversely enters the guide sliding shoe due to the influence of the inclination angle of the working surface when the mineral aggregate is vertically leaked when the conventional vertical material leakage opening is adopted (see fig. 12, the inclination angle of the working surface is large, the material conveying part reversely enters the guide sliding shoe, and the driving part of a running system and the friction surface of the guide sliding shoe are greatly influenced) can be avoided. The direction of the material leakage opening of the material leakage block can be selectively installed according to the inclined direction of the working surface, see fig. 10 and 11, so that the use adaptability is improved, the smooth material leakage at the bottom of the guide sliding shoe is ensured, the material leakage opening is not blocked by mineral aggregate or the mineral aggregate reversely enters the guide sliding shoe, and the negative influence of the mineral aggregate on the transmission piece and the friction surface of the guide sliding shoe is further reduced.
The cross section of the positioning block is preferably in a round rectangular shape (see fig. 1, 5 and 8), so that the rotation trend between the main sliding shoe and the bottom hook can be more reliably limited, and the larger cross section area can be maintained, so that higher force transmission capability is provided. The upper groove surface 17 and the lower groove surface 18 of the sliding shoe are respectively contacted with the upper surface 31 and the lower surface 32 of the positioning block, the upper groove surface 17 and the lower groove surface 18 of the sliding shoe are parallel to the main surface 11 of the sliding shoe or the auxiliary surface of the sliding shoe, and are vertical to the front wall or the rear wall of the groove, and the upper groove surface 17 and the lower groove surface 18 of the sliding shoe transmit partial vertical force of the bottom hook to the main sliding shoe 1 through the positioning block 3. The bottom hook is provided with a bottom hook upper groove surface 27 and a bottom hook lower groove surface 28, which correspond to the positioning block top surface 31 and the positioning block bottom surface 32 of the positioning block respectively, and the bottom hook upper groove surface 27 and the bottom hook lower groove surface 28 transmit the force in the vertical direction of the bottom hook to the main sliding shoe 1 through the positioning block 3.
The rear end of the positioning block is provided with a transverse convex annular table, the positioning block is inserted into the main sliding shoe and the bottom hook from back to front, and the annular table is limited in a sinking groove formed in the rear end face of the main sliding shoe and used for determining the position of the positioning block in the front-rear direction.
The main sliding shoes are respectively and horizontally provided with a counter bore section, a threaded hole section and a main sliding shoe arc surface 19 inwards from the left end face and the right end face, the surfaces of the positioning blocks are provided with positioning block arc surfaces 33 which extend left and right, and the main sliding shoe arc surfaces and the positioning block arc surfaces are spliced into complete pin hole sections. The pin hole section is coaxial with the counter bore section and the threaded hole section. The pin is sequentially provided with a pin head, a threaded shaft section 41 and a pin shaft section 42, wherein the pin head is axially limited in the counter bore section and is used for positioning the pin in the left-right direction. The threaded shaft section is in threaded connection with the threaded hole section, so that the pin is fixed in the main sliding shoe. The pin shaft section is matched with the pin hole section and used for fixing the position of the positioning block relative to the main sliding shoe in the front-rear direction.
The split guide shoe is characterized in that a lubrication oil duct 7 can be further arranged in a body of the split guide shoe, an outlet of the lubrication oil duct is led to the surfaces of the top wear-resisting layer, the front wear-resisting layer, the rear wear-resisting layer and the bottom hook wear-resisting layer, and a main oil inlet 70 of the lubrication oil duct is usually arranged at a concave position below the outer surface of the guide shoe, specifically can be arranged on the top surface of the base of the main shoe and is an introduction point of an external oil way of the guide shoe. The lubricating oil duct can lubricate all four wear-resistant layer surfaces of the guide sliding shoe, so that the service life of the guide sliding shoe can be greatly prolonged.
The lubricating oil duct comprises a front branch oil duct and a rear branch oil duct, wherein the front branch oil duct leads to the top wear-resistant layer and the front wear-resistant layer, and the rear branch oil duct leads to the rear wear-resistant layer and the bottom hook wear-resistant layer.
In the embodiment shown in the drawings, the front branch oil duct includes a front oil duct 73, a front oil groove 732 and a front slit 733, which are sequentially connected, the front oil duct is a duct formed in the main slipper base body, the upper end of the front oil duct is communicated with the main oil inlet, and the lower end of the front oil duct is communicated with the front oil groove. The top wear layer is provided in two separate front and rear sections with a small cover plate 734 between them, which is fixed to the main skid shoe. The front oil groove is arranged on the top surface of the small cover plate and extends front and back. The front gap is a narrow gap reserved between the small cover plate and the front and rear top wear-resistant layers respectively, so that the front and rear top wear-resistant layers can be kept to be lubricated by oil. The lubricating oil oozing out from the front gap directly lubricates the surface of the top wear-resistant layer, wherein part of the lubricating oil can lubricate the surface of the front wear-resistant layer along the top wear-resistant layer flow. Of course, a branch oil duct can be additionally arranged and directly led to the front abrasion-resistant layer. In the case where the space in which the branch oil passage is provided is limited, the structure shown in the drawings is more compact.
The rear branch oil duct comprises a rear oil duct 72, an upper oil groove 721, an upper oil outlet 722, a lower oil groove 723 and a lower oil outlet 724, wherein the upper end of the rear oil duct is communicated with the main oil inlet, the lower end of the rear oil duct is communicated with the upper oil groove, the upper oil groove is a groove which is formed in the groove front wall 14 of the groove and extends up and down, and the upper oil outlet is a hole which is formed in the main slipper and penetrates through the rear wear-resistant layer, and the hole is communicated with the upper oil groove. The front side 24 of the protruding extension of the bottom hook is in transition with the top surface of the base by a bottom hook inclined plane 202, the front wall of the groove on the main sliding shoe is in transition with the bottom surface of the rear part of the base of the main sliding shoe before the groove by a cavity inclined plane 104, the lower oil groove is a gap between the bottom hook inclined plane and the cavity inclined plane, and the upper end of the lower oil groove is communicated with the lower end of the upper oil groove. The lower oil outlet is an oil outlet groove formed in the bottom surface of the rear portion of the main sliding shoe base in front of the groove, the oil outlet groove penetrates through the rear wear-resistant layer, and the rear end of the oil outlet groove is communicated with the lower oil groove. The depth of the oil outlet groove can be slightly larger than the height of the bottom hook wear-resistant layer, so that lubricating oil can flow out of the oil outlet groove and then flow onto the surface of the bottom hook wear-resistant layer more conveniently. The front oil passage and the rear oil passage are both communicated with the main oil inlet through a communication oil passage 71.
In the embodiment shown in the drawings, the upper oil groove 721 corresponds to the middle part of the plugging part between the locating block and the main slipper base in the left-right direction, so that the upper oil groove is divided into an upper section and a lower section. The top and bottom surfaces of the portion of the positioning block located in front of the groove (i.e. a portion of the top surface 31 and the bottom surface 32 of the positioning block) are respectively provided with an upper positioning block oil groove 341 and a lower positioning block oil groove 342 extending back and forth. The locating block upper oil groove and the locating block lower oil groove are collectively referred to as a locating block oil groove 34. The front and rear ends of the upper oil groove of the positioning block are respectively communicated with the upper oil outlet 722 and the upper section of the upper oil groove 721, and the front and rear ends of the lower oil groove of the positioning block are respectively communicated with the upper oil outlet 722 and the lower section of the upper oil groove 721. The lubricating oil enters the rear oil duct 72 after entering the main oil inlet 70 and communicating with the oil duct 71, part of the lubricating oil flows out of the lubricated rear wear-resistant layer 1033 from the upper oil outlet 722 through the upper section of the upper oil groove 721 and the upper oil groove 341 of the positioning block, part of the lubricating oil continuously enters the lower oil groove 342 of the positioning block, the lower section of the upper oil groove 721 and the lower oil groove 723, and finally flows out of the lubricated bottom hook wear-resistant layer 203 from the lower oil outlet 724. Once the upper oil outlet 722 is blocked near the mouth of the rear wear layer, lubricating oil can still flow to the lower oil outlet 724 through the lower oil groove 342, the lower section of the upper oil groove 721 and the lower oil groove 723 without affecting the lubrication of the top wear layer.
In the embodiment shown in the drawings, the connection point of the front oil passage and the communication oil passage is located at the upstream, and the connection point of the rear oil passage and the communication oil passage is located at the downstream, that is, the lubricating oil flows through the upper end of the front oil passage and then flows to the upper end of the rear oil passage, in this case, the front oil passage and the communication oil passage are preferably connected by the front oil inlet 731 of the small-hole flow passage, so as to ensure that the rear oil passage 72 can be sufficiently supplied with lubricating oil.
The bottom hook base is provided with an oil cleaning port 725 for cleaning accumulated oil. The lower end of the oil cleaning port is plugged by a plug in threaded connection, and the upper end of the oil cleaning port is communicated with the lower oil outlet. The plug is opened, and accumulated oil can automatically flow out.
The left and right directions referred to herein correspond to the left and right directions in the view of fig. 1, respectively, and the front and rear directions referred to herein correspond to the right and left directions in the view of fig. 4, respectively.
Claims (11)
1. A split guide slipper is characterized in that: comprises a main sliding shoe, a bottom hook, a positioning block, a pin and a leakage block, wherein the main sliding shoe and the bottom hook are of a bilateral symmetry structure, the front part of a main sliding shoe base of the main sliding shoe is provided with a left-right extending guide groove, an opening below the guide groove is penetrated left and right, the surface of the guide groove is provided with a front wear-resisting layer, a top wear-resisting layer and a rear wear-resisting layer which are sequentially connected end to end, the rear part of the main sliding shoe base is respectively provided with a groove with a downward opening left and right, the bottom hook comprises a bottom hook base and a bottom hook base, the left and right parts of the bottom hook base are respectively protruded, the longitudinal cross sections of the left part and the right part of the bottom hook are respectively in an inverted T shape, the bottom hook is just embedded into the corresponding grooves from bottom to top, the left part and the right part of the bottom hook are respectively spliced with the rear part of the main sliding shoe base at the left and the right parts, the bottom surface of the rear part of the main sliding shoe base is attached to the top surface of the bottom hook base, the front and back directions of the inserted part are respectively inserted into one positioning block, the left and right directions of the interface of each positioning block and the main sliding shoe are respectively inserted into and fixed with one pin, one part of cylindrical surface of each pin is positioned in the positioning block, the other part of cylindrical surface of each pin is positioned in the main sliding shoe, a sliding shoe material leakage opening is arranged at the middle position of the left and right directions of the rear part of the main sliding shoe base, a bottom material leakage opening is arranged at the middle part of the left and right directions of the bottom hook base, the material leakage block is fixed on the bottom hook, the sliding shoe material leakage opening, the bottom material leakage opening and the material leakage opening of the material leakage block are sequentially communicated up and down, the part of the top surface of the bottom hook base, which is forwards beyond the rear part of the main sliding shoe base, is provided with a bottom hook wear-resistant layer, a top wear-resistant layer, a rear wear-resistant layer and the bottom hook wear-resistant layer are sequentially arranged to form a square frame opening, the material leakage opening of the material leakage block is obliquely arranged downwards left or downwards right, the cross section of the positioning block is in a round corner rectangle, the rear end of the positioning block is provided with a transverse convex annular table, the positioning block is inserted into the main sliding shoe and the bottom hook from back to front, and the annular table is limited in a sinking groove formed in the rear end face of the main sliding shoe.
2. The split guide shoe of claim 1, wherein: the main sliding shoe is characterized in that a counter bore section, a threaded hole section and a main sliding shoe arc surface are sequentially arranged on the main sliding shoe from the left end face and the right end face in a horizontal inward mode, a left-right extending positioning block arc surface is arranged on the surface of the positioning block, the main sliding shoe arc surface and the positioning block arc surface are spliced into a complete pin hole section, the pin hole section is coaxial with the counter bore section and the threaded hole section, the pin is sequentially provided with a pin head, a threaded shaft section and a pin shaft section, the pin head is axially limited in the counter bore section, the threaded shaft section is in threaded connection with the threaded hole section, and the pin shaft section is matched with the pin hole section.
3. The split guide shoe of claim 1 or 2, wherein: the novel sliding shoe is characterized by further comprising a lubricating oil duct, wherein an outlet of the lubricating oil duct is communicated with the surfaces of the top wear-resisting layer, the front wear-resisting layer, the rear wear-resisting layer and the bottom hook wear-resisting layer, and a main oil inlet of the lubricating oil duct is arranged on the top surface of the main sliding shoe base.
4. A split guide shoe as claimed in claim 3, wherein: the lubricating oil duct comprises a front branch oil duct and a rear branch oil duct, wherein the front branch oil duct leads to the top wear-resistant layer and the front wear-resistant layer, and the rear branch oil duct leads to the rear wear-resistant layer and the bottom hook wear-resistant layer.
5. The split guide shoe of claim 4 wherein: the front branch oil duct comprises a front oil duct, a front oil groove and a front gap which are sequentially connected, the front oil duct is a duct formed in a main sliding shoe base body, the upper end of the front oil duct is communicated with the main oil inlet, the lower end of the front oil duct is communicated with the front oil groove, the top wear-resisting layer is arranged into two sections which are separated front and back, a small cover plate is arranged between the front section and the rear section of the top wear-resisting layer, the small cover plate is fixed on the main sliding shoe, the front oil groove is a through groove which is arranged on the top surface of the small cover plate and extends front and rear, and the front gap is a narrow gap reserved between the small cover plate and the front section and the rear section of the top wear-resisting layer respectively.
6. The split guide shoe of claim 5 wherein: the rear branch oil duct comprises a rear oil duct, an upper oil groove, an upper oil outlet, a lower oil groove and a lower oil outlet, wherein the upper end of the rear oil duct is communicated with the main oil inlet, the lower end of the rear oil duct is communicated with the upper oil groove, the upper oil groove is a groove which is formed in the front groove wall of the groove and extends up and down, the upper oil outlet is a hole which is formed in the main sliding shoe and penetrates through a rear wear-resistant layer, the hole is communicated with the upper oil groove, the front surface of the protruding bottom hook is in transition with the top surface of the bottom hook base by a bottom hook inclined plane, the front groove wall of the groove on the main sliding shoe is in transition with the bottom surface of the front part of the groove of the main sliding shoe base by a cavity inclined plane, the lower oil groove is a gap between the bottom hook inclined plane and the cavity inclined plane, the upper end of the lower oil groove is communicated with the lower end of the upper oil groove, and the lower oil outlet is a rear oil groove which is formed in the rear part of the main sliding shoe base and is positioned on the bottom surface in front of the groove.
7. The split guide shoe of claim 6 wherein: the upper oil groove corresponds to the middle part of the plugging part of the positioning block and the main sliding shoe base in the left-right direction, the upper oil groove is divided into an upper section and a lower section, the top surface and the bottom surface of the part of the positioning block, which is positioned in front of the groove, are respectively provided with an upper positioning block oil groove and a lower positioning block oil groove which extend front and back, the front end and the rear end of the upper positioning block oil groove are respectively communicated with the upper oil outlet and the upper section of the upper oil groove, and the front end and the rear end of the lower positioning block oil groove are respectively communicated with the upper oil outlet and the lower section of the upper oil groove.
8. The split guide shoe of claim 6 wherein: the bottom hook base is provided with an oil cleaning port, the lower end of the oil cleaning port is plugged by a plug in threaded connection, and the upper end of the oil cleaning port is communicated with the lower oil outlet.
9. The split guide shoe of claim 6 wherein: the front oil duct and the rear oil duct are communicated with the main oil inlet through a communication oil duct, wherein the connection point of the front oil duct and the communication oil duct is positioned at the upstream, and the front oil duct is connected with the communication oil duct through a small-hole flow passage structure.
10. The split guide shoe of claim 7 wherein: the front oil duct and the rear oil duct are communicated with the main oil inlet through a communication oil duct, wherein the connection point of the front oil duct and the communication oil duct is positioned at the upstream, and the front oil duct is connected with the communication oil duct through a small-hole flow passage structure.
11. The split guide shoe of claim 8 wherein: the front oil duct and the rear oil duct are communicated with the main oil inlet through a communication oil duct, wherein the connection point of the front oil duct and the communication oil duct is positioned at the upstream, and the front oil duct is connected with the communication oil duct through a small-hole flow passage structure.
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| CN201910420600.6A CN110005411B (en) | 2019-05-20 | 2019-05-20 | Split guide sliding shoe |
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| CN201910420600.6A CN110005411B (en) | 2019-05-20 | 2019-05-20 | Split guide sliding shoe |
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| CN111980700B (en) * | 2020-09-01 | 2025-06-10 | 天地科技股份有限公司上海分公司 | Mineral aggregate guiding device and mineral aggregate guiding structure above arm support |
| CN112049637A (en) * | 2020-10-08 | 2020-12-08 | 天地科技股份有限公司上海分公司 | Quick-dismounting type multi-guide system of mining machine |
| CN114909132B (en) * | 2022-05-25 | 2025-05-30 | 辽宁工程技术大学 | A guide shoe for coal mining machine filled with micro-texture and a micro-texture design method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204126647U (en) * | 2014-09-16 | 2015-01-28 | 中煤平朔集团有限公司 | A kind of guide sliding shoe of coal-winning machine lubricating arrangement |
| CN204827449U (en) * | 2015-07-09 | 2015-12-02 | 三一重型装备有限公司 | Guide foot , running gear and coal -winning machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005018614U1 (en) * | 2005-11-28 | 2007-01-11 | Dbt Gmbh | Sliding shoe for mining equipment |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204126647U (en) * | 2014-09-16 | 2015-01-28 | 中煤平朔集团有限公司 | A kind of guide sliding shoe of coal-winning machine lubricating arrangement |
| CN204827449U (en) * | 2015-07-09 | 2015-12-02 | 三一重型装备有限公司 | Guide foot , running gear and coal -winning machine |
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