CN110043256B - Lubrication structure of guide sliding shoe - Google Patents
Lubrication structure of guide sliding shoe Download PDFInfo
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- CN110043256B CN110043256B CN201910420591.0A CN201910420591A CN110043256B CN 110043256 B CN110043256 B CN 110043256B CN 201910420591 A CN201910420591 A CN 201910420591A CN 110043256 B CN110043256 B CN 110043256B
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- steel pipe
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- 238000005461 lubrication Methods 0.000 title claims description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 230000001050 lubricating effect Effects 0.000 claims abstract description 7
- 210000005069 ears Anatomy 0.000 claims abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 57
- 238000005299 abrasion Methods 0.000 abstract description 11
- 238000005065 mining Methods 0.000 abstract description 10
- 239000010687 lubricating oil Substances 0.000 abstract description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 8
- 239000011707 mineral Substances 0.000 abstract description 8
- 238000009434 installation Methods 0.000 description 4
- 230000004224 protection Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- 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
- E21C29/22—Propulsion of machines for slitting or completely freeing the mineral from the seam by wheels, endless tracks or the like
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- 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)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to a guide sliding shoe lubricating structure, which comprises a flow dividing valve arranged at the top of a sliding shoe ear, wherein the flow dividing valve is provided with a main inlet, a left lower outlet and a right lower outlet of oil, the left lower outlet and the right lower outlet are respectively connected with an inlet of a connecting mechanism, the connecting mechanism downwards extends to a sliding shoe main frame from the top of the sliding shoe ear along the edges of sliding shoe connecting ears at the left side and the right side respectively, the outlets of the connecting mechanism are respectively connected with a drainage mechanism, and the outlets of the drainage mechanism are communicated with oil ducts which are arranged in the sliding shoe main frame and respectively lead to at least two wear-resisting layers. When the guide sliding shoe works at different working surface dip angles and different working surface pitch-over mining angles, lubricating oil can flow to different wear-resistant layers on the left side and the right side well as required, so that each wear-resistant layer is well lubricated, and the problems of service life and equipment abrasion loss of the guide sliding shoe when the roller type mining machine is used for mining high-hardness and high-abrasion mineral aggregates can be obviously improved.
Description
Technical Field
The invention relates to a lubricating structure, in particular to a guide sliding shoe of a mining machine, which is suitable for working conditions with large working face inclination angle and pitch angle, can prolong the service life of a wear-resistant layer 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 abrasion-resistant layer of the guide sliding shoe of the travelling system of the miner is faster. If the situation that the abrasion of the mined mineral aggregate is very high is encountered, the abrasion of the guide sliding shoes is more serious, the service life of the guide sliding shoes is very low, the service life of a walking transmission system is also greatly shortened, and the mining benefit is seriously reduced.
In view of the above problems, it is proposed in the industry to thicken the wear layer of the guide shoe of a mining machine in an attempt to solve the problem of rapid wear of the guide shoe, but the problem of short life of the wear layer of the guide shoe cannot be thoroughly solved because the whole machine is severely stressed when cutting hard mineral aggregate, and the mineral aggregate is highly corrosive. 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 guide sliding shoe lubricating structure which can obviously improve the service life of the guide sliding shoe and the equipment abrasion loss when a drum-type mining machine is used for mining high-hardness and high-abrasion mineral aggregate.
The main technical scheme of the invention is as follows:
The utility model provides a direction skid shoe lubricating structure, includes the shunt valve of arranging at the skid shoe earpick, be equipped with main import, left lower export and the export of right lower of fluid on the shunt valve, left lower export and export link to each other with the import of a coupling mechanism down respectively, coupling mechanism is from the skid shoe earpick along the edge of the skid shoe coupling ear of left and right sides respectively downwards linear extension to the skid shoe body frame, a drainage mechanism is connected respectively to coupling mechanism's export, drainage mechanism's export with set up in the skid shoe body frame and lead to the oil duct of two at least wearing layers respectively and communicate with each other, coupling mechanism and drainage mechanism bury in the solid structure of direction skid shoe.
The diverter valve preferably comprises a valve body, a diverter valve core and an oil inlet pipe, wherein a valve hole, a left diverter hole and a right diverter hole are formed in the valve body, the valve hole extends up and down, the left diverter hole and the right diverter hole extend obliquely to the left lower side and the right lower side respectively, the upper ends of the left diverter hole and the right diverter hole are communicated with the upper end of the valve hole, the oil inlet pipe is inserted into the valve body from the upper side and is fixed relative to the valve body, the oil inlet hole of the oil inlet pipe is communicated with the valve hole up and down, the diverter valve core is fixedly installed in the valve hole and is matched with the shaft hole of the valve hole, the front side and the rear side of the upper portion of the diverter valve core are cylindrical surfaces which are matched with the oil inlet hole of the oil inlet pipe to form shaft holes, a notch is formed in the left side and the right side of the upper portion of the diverter valve core respectively, the inner wall of the oil inlet hole and the two notches form a left diverter hole and a right diverter hole respectively, and the left diverter hole and the right diverter hole are communicated with the upper end of the valve hole.
The drainage mechanism preferably comprises a drainage rod and a drainage rod mounting hole, wherein the drainage rod mounting hole is a vertical blind hole arranged in a solid structure of a guide sliding shoe, the drainage rod is vertically arranged at the bottom of the drainage rod mounting hole, the upper part of the drainage rod is a conical structure body with a small upper part and a big lower part, the middle part of the drainage rod is a cylindrical structure with a plurality of longitudinal drainage grooves on a cylindrical surface, the lower part of the drainage rod is of a cylindrical structure, the lower part of the drainage rod is matched with the drainage rod mounting Kong Zhoukong, the upper part of the drainage rod is coaxially embedded into an outlet of the connection mechanism, an annular drainage groove is arranged on the upper part of the drainage rod, the inner wall of the outlet of the connection mechanism is communicated with the drainage groove to form a drainage port, the outlet of the connection mechanism is communicated with the drainage rod mounting hole, oil passages which are respectively led to at least two wear-resisting layers comprise a left oil passage and a right oil passage, and the left oil passage are communicated with the part of the drainage rod mounting hole where the middle part of the drainage rod is located.
The main part of coupling mechanism is the steel pipe, the upper end of steel pipe with left branch flow hole and right branch flow hole are linked together, the lower extreme of steel pipe with the drainage pole mounting hole is linked together, is equipped with the arc wall in the solid structure of direction shoe near the shoe coupling lug edge, the majority of steel pipe is laid in the arc wall, the notch of arc wall up, install the backplate on the notch of arc wall, the backplate is sealed the arc wall.
The beneficial effects of the invention are as follows:
Because the flow dividing valve is adopted and is arranged at the highest position in the middle of the sliding shoe body, when the guide sliding shoe works at different working surface inclined angles, namely, no matter whether the working surface is inclined downwards leftwards or downwards rightwards, oil inlet can be well and evenly divided to the left side and the right side of the guide sliding shoe, so that the wear-resisting layers at all sides can be well lubricated. By adopting the drainage mechanism, when the guide sliding shoes work at different working faces at the pitching angles, namely, no matter the guide sliding shoes tilt forward downwards or forward upwards, the lubricating oil flowing to the main frame of the sliding shoes can flow to the different wear-resistant layers on the corresponding sides as required, so that the surfaces of the wear-resistant layers are lubricated well.
The invention has the advantages of simple structure, convenient processing, proper protection, convenient maintenance and good reliability.
By adopting the invention, the abrasion-resistant layer loss of the guide sliding shoe caused by friction can be greatly reduced, so that the service life of the guide sliding shoe can be obviously prolonged.
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 cross-sectional view of one embodiment of the diverter valve;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6a is a schematic diagram of an embodiment of the diverter spool;
FIG. 6b is a top view of FIG. 6 a;
FIG. 6c is a side view of FIG. 6 a;
FIG. 7 is a cross-sectional view B-B of FIG. 2 (drainage mechanism);
FIG. 8 is a schematic structural view of the drainage rod;
FIG. 9 is a schematic diagram of an embodiment of the attachment mechanism;
FIG. 10a is a schematic view of an embodiment of the guard mechanism;
FIG. 10b is an enlarged partial view of a section through two kingpin axes of FIG. 10 a;
FIG. 10C is a C-C rotational cross-sectional view of FIG. 10 a;
FIG. 11 is a schematic illustration of the present invention for achieving simultaneous good lubrication of the left and right sides of a guide shoe in a large work surface tilt condition;
FIG. 12 is a schematic illustration of the present invention for achieving good lubrication of the surface of the guide shoe wear layer in a large face pitch angle condition.
Description of the drawings: 1. a diverter valve; 11. an oil inlet pipe; 111. an oil inlet hole; 112. a positioning card; 113. sealing; 12. a shunt valve core; 121. a notch; 122. a cylindrical surface; 123. a split surface; 124. a cylindrical structure; 125. a non-circular cylindrical structure; 13. a valve body; 131. a left diversion hole; 132. a right tap hole; 133. a valve hole; 134. a non-circular cylindrical bore; 135. a mounting hole; 14. plugging; 15. a shunt port;
2. A drainage mechanism; 21. a drainage rod; 211. conical surface; 212. a drainage groove; 213. drainage grooves; 214. a cylindrical structure provided with a plurality of longitudinal drainage grooves; 215. a cylindrical structure without drainage grooves; 216. a threaded hole; 22. a drainage rod mounting hole; 23. a drainage end face; 24. pipe holes; 25. a drainage port; 26. a left oil duct; 27. a right oil passage;
3. A connecting mechanism; 31. a steel pipe; 32. a screw seat; 33. expanding sleeve; 34. pressing the cap;
4. A protective mechanism; 412. an arc-shaped groove; 413. a guard board; 421. an outer edge; 422. an inner edge; 431. a kingpin; 432. auxiliary pins;
5. A slipper body; 51. a slipper ear top; 52. a slipper connecting lug; 53. a slipper main frame.
Detailed Description
The invention discloses a guide sliding shoe lubricating structure, which is shown in figures 1-12 and comprises a flow dividing valve 1 arranged on a sliding shoe lug top 51, wherein a main inlet, a left lower outlet and a right lower outlet of oil are arranged on the flow dividing valve, the main inlet, the left lower outlet and the right lower outlet are communicated with each other through an internal oil way of the flow dividing valve, the left lower outlet and the right lower outlet are respectively connected with an inlet of a connecting mechanism 3, the connecting mechanisms downwards extend to a sliding shoe main frame 53 from the sliding shoe lug top 51 along the edges of sliding shoe connecting lugs 52 on the left side and the right side respectively in a linear manner, the outlets of the connecting mechanisms are respectively connected with a drainage mechanism 2, the outlets of the drainage mechanisms are communicated with oil ways which are arranged in the sliding shoe main frame and respectively lead to at least two wear layers, and the connecting mechanisms and the drainage mechanisms are buried in a solid structure of the guide sliding shoe. Lubricating oil enters the flow dividing valve from the main inlet, flows out from the left lower outlet and the right lower outlet after being divided by the internal oil way of the flow dividing valve, flows to the left side and the right side of the sliding shoe main frame respectively through the connecting mechanisms which are respectively connected, and the lubricating oil on each side is drained to the surfaces of different wear-resistant layers through the drainage mechanisms, so that the lubrication of each wear-resistant layer is realized.
The flow dividing valve is arranged at the highest position of the sliding shoe body 5, and when the guide sliding shoe works under different working surface dip angles, namely, no matter the working surface is inclined downwards leftwards or downwards rightwards, oil inlet can be well and evenly divided to the left side and the right side of the guide sliding shoe, so that the wear-resisting layers on all sides can be well lubricated. Through the drainage mechanism, when the guide sliding shoes work at different working faces at the pitching angles, namely, no matter the guide sliding shoes tilt forward downwards or forward upwards, the lubricating oil flowing to the main frame of the sliding shoes can flow to the different wear-resistant layers on the corresponding sides as required, so that the surfaces of the wear-resistant layers are lubricated well.
Because the guide sliding shoes are generally of a bilateral symmetry structure, the guide sliding shoe lubrication structure is also designed into a bilateral symmetry structure, the left connecting mechanism and the drainage mechanism are responsible for lubrication of the wear-resisting layers on the left side, and the right connecting mechanism and the drainage mechanism are responsible for lubrication of the wear-resisting layers on the right side.
The diverter valve can include valve body 13, diverter valve core 12 and oil feed pipe 11, be equipped with valve opening 133, left reposition of redundant personnel hole 131 and right reposition of redundant personnel hole 132 in the valve body, the valve opening extends from top to bottom, left reposition of redundant personnel hole and right reposition of redundant personnel hole respectively incline to extend to left below and right below, the upper end of left reposition of redundant personnel hole and right reposition of redundant personnel hole all with the upper end of valve opening communicates with each other. The oil inlet pipe is inserted into the valve body from the upper part and is fixed relative to the valve body. The oil inlet pipe and the valve hole are coaxially arranged, and the oil inlet hole 111 of the oil inlet pipe is communicated with the valve hole up and down. The shunt valve core is fixedly arranged in the valve hole and matched with the valve hole shaft hole. The front side and the rear side of the upper part of the split valve core are cylindrical surfaces 122 which are embedded into the oil inlet holes of the oil inlet pipe and form shaft hole matching with the oil inlet holes of the oil inlet pipe. The left and right sides of the upper portion of reposition of redundant personnel case is equipped with a incision 121 respectively, the inner wall of inlet port and two incisions form left shunt opening and right shunt opening respectively, jointly call shunt opening 15, left shunt opening and right shunt opening intercommunication the inlet port with the upper end of valve opening. The cylindrical surface 122 seals the oil inlet from the front-back direction, so that oil can only flow out from the left split-flow port and the right split-flow port when lubricating oil flows out from the oil inlet, and the left split-flow and the right split-flow of the lubricating oil at the top of the slipper ear are realized. The bottom of the upper part of the flow dividing valve core shown in the drawing is arranged into an arc transition.
And an oil inlet of the oil inlet pipe is a main inlet of oil on the flow dividing valve. The tail ends of the left flow dividing hole and the right flow dividing hole are the left lower outlet and the right lower outlet of the flow dividing valve.
The lower part of the valve hole may be sequentially provided with a non-circular cylindrical hole 134 and a screw hole, which are sequentially communicated with the valve hole up and down. The middle part of the flow dividing valve core is a cylindrical structure 124 with left and right shoulder parts chamfered, and the surface of the chamfered part forms a flow dividing surface 123. The oil flowing out from the left diversion port and the right diversion port respectively flows into the left diversion hole and the right diversion hole through the left diversion surface and the right diversion surface. The lower part of the flow dividing valve core is a non-circular cylindrical surface structure 125, the middle part and the lower part of the flow dividing valve core are respectively matched with the valve hole 133 and the non-circular cylindrical surface hole 134, and the rotation of the flow dividing valve core can be limited by the matching of the non-circular cylindrical surface structure and the non-circular cylindrical surface hole, so that the left flow dividing port and the right flow dividing port are respectively corresponding to the left flow dividing hole and the right flow dividing hole. The threaded hole is internally and in threaded connection with a plug 14, the plug is installed on the valve body from bottom to top, not only provides sealing of the bottom of the shunt valve core, but also provides axial limiting for the shunt valve core from below. The threaded hole is a threaded hole with a counter bore.
The size of the shunt 15 is typically set according to the oil droplet diameter.
The oil inlet pipe and the shunt valve body can be respectively sealed and axially fixed relative to the valve body by arranging a radial seal 113 and a U-shaped axial positioning clamp 112. The outer surface of the oil inlet pipe is provided with an outer annular groove, the flow dividing valve body is internally provided with an inner annular groove, and the axial positioning clamp is arranged in an annular cavity formed by buckling the inner annular groove and the outer annular groove in a penetrating manner.
The top surface of the slipper ear top can be provided with a notch which extends leftwards and rightwards and has an upward opening, and the front side and the rear side of the notch respectively form an outer edge 421 and an inner edge 422. The shunt valve body is preferably arranged in the notch, a plurality of main pins 431 are arranged on the top of the shunt valve body and the sliding shoe lug in a penetrating way from front to back, and the outer edge and the inner edge are penetrated to limit and protect the valve body. The kingpin mates with a mounting hole 135 in the diverter valve body. An auxiliary pin 432 is inserted in the left-right direction on each main pin, for example, an auxiliary pin limiting anti-series can be inserted at the tail end of the main pin. The use of the main pin and the auxiliary pin realizes the simple and reliable fixation of the shunt valve body on the top of the slipper lug.
The drainage mechanism may include a drainage rod 21 and a drainage rod mounting hole 22, where the drainage rod mounting hole is a vertical blind hole disposed in the solid structure of the guide shoe, and the drainage rod is vertically mounted at the bottom of the drainage rod mounting hole. The outlet of the connecting mechanism is downward abutted against a drainage end face 23 serving as the top surface of the blind hole. The upper portion of drainage pole is big-end-down's toper structure body, and the middle part is equipped with the cylinder structure 214 of a plurality of vertical drainage grooves 213 on the cylinder, vertical drainage groove is that the lower extreme is sealed, the upper end link up, the middle part cylinder of drainage pole with drainage pole installation Kong Zhoukong cooperates, and fluid between the different vertical drainage grooves is not mutually led. The lower part is a cylindrical structure 215 without drainage grooves. The lower part of the drainage rod is matched with the drainage rod installation Kong Zhoukong, so that lubricating oil basically cannot permeate downwards. The upper part of the drainage rod is partially coaxially embedded into the outlet of the connecting mechanism, an annular drainage groove 212 is formed in the upper part of the drainage rod, a drainage port 25 is formed by the inner wall of the outlet of the connecting mechanism and the drainage groove, and the drainage port is communicated with the outlet of the connecting mechanism and the installation hole of the drainage rod. In the embodiment shown in the drawings, the oil channels respectively leading to the at least two wear-resistant layers comprise a left oil channel 26 and a right oil channel 27, and the left oil channel and the right oil channel are communicated with the part of the installation hole of the drainage rod where the middle part of the drainage rod is located. Lubricating oil drops at the outlet of the connecting mechanism overflow to form a ring shape when passing through the drainage port 25, uniformly flow downwards along the conical surface 211 at the upper part of the drainage rod, and then flow into the left oil duct and the right oil duct respectively through the longitudinal drainage grooves. The oil in the longitudinal drainage grooves which do not correspond to the left oil passage and the right oil passage in the radial direction cannot continue to flow downwards until the oil fills the longitudinal drainage grooves at the positions, and the oil flowing through the drainage openings at the back only flows to the longitudinal drainage grooves corresponding to the left oil passage and the right oil passage. The longitudinal drainage channels may be distributed over the entire circumference of the cylindrical structure 214 without affecting drainage even if the drainage bars have relative rotation or large circumferential position errors with respect to the drainage bar mounting holes.
The top of the drainage rod is provided with a threaded hole 216 which can be used for disassembling and assembling the drainage rod.
The main body of the connecting mechanism is a steel pipe 31, the upper end of the steel pipe is communicated with the left diversion hole and the right diversion hole, the lower end of the steel pipe is communicated with the drainage rod mounting hole, and the lower pipe hole 24 of the steel pipe is the outlet of the connecting mechanism. An arc groove 412 is arranged in the solid structure of the guide slipper near the edge of the slipper connecting lug, a large part (mainly the part except the end head) of the steel pipe is laid in the arc groove, the notch of the arc groove faces upwards, and a guard plate 413 is arranged on the notch of the arc groove, and can be usually welded and installed. The guard plate seals the arc-shaped groove, isolates the steel pipe in a cavity surrounded by the arc-shaped groove and the guard plate, and achieves safety protection of the steel pipe. The arc-shaped groove and the guard plate form the main part of the guard mechanism 4. The steel pipe is laid in the sliding shoe body of the guide sliding shoe, so that the sliding shoe body is simultaneously a protective shell of the steel pipe, the structure is simple, the processing is convenient, the strength of the sliding shoe connecting lug 52 is not affected, and the practicability is good. The arc-shaped groove is preferably a groove with a circular arc-shaped cross section.
The connecting mechanism can further comprise a thread seat 32, an expansion sleeve 33 and a pressing cap 34, one end of a straight hole thread of the thread seat is inserted into the left diversion hole and the right diversion hole and is in threaded connection and fixation with a valve body of the diversion valve, the upper end of the steel pipe penetrates through the corresponding thread seat and is inserted into the left diversion hole and the right diversion hole, the steel pipe is matched with a thread seat shaft hole, the expansion sleeve and the pressing cap are sequentially sleeved on the steel pipe after the thread seat, a contact surface between the expansion sleeve and the thread seat is a conical surface, the pressing cap is in threaded fixed connection with the thread seat, the expansion sleeve is axially pressed on the thread seat, and finally, the compression is formed in the radial direction, so that the sealing and the connecting locking effects are achieved, and the thread seat and the steel pipe are formed into a sealed whole in the radial direction. The connection mode of the small-size steel pipe 31, the detachable thread seat 32, the expansion sleeve 33 and the pressing cap 34 is adopted, and the structure is simple and the maintenance is convenient.
The steel pipe and the arc-shaped groove can be fixed by spot welding, and especially the position where the lower end of the steel pipe contacts with the drainage end face 23 is reliably connected and fixed.
The invention is suitable for large-inclination-angle working surfaces or working surfaces with large pitching angles, and in the working state, the wear-resistant layer of the guide sliding shoe can be well lubricated; meanwhile, the connecting structure of the lubricating structure is simple and reliable, convenient to maintain and good in protection.
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. 3, respectively.
Claims (12)
1. A guide slipper lubricating structure is characterized in that: the sliding shoe comprises a flow dividing valve arranged at the top of a sliding shoe ear, wherein a main inlet, a left lower outlet and a right lower outlet of oil are arranged on the flow dividing valve, the left lower outlet and the right lower outlet are respectively connected with an inlet of a connecting mechanism, the connecting mechanism downwards linearly extends to a sliding shoe main frame along the edges of sliding shoe connecting ears at the left side and the right side from the top of the sliding shoe ear respectively, the outlets of the connecting mechanisms are respectively connected with a drainage mechanism, the outlets of the drainage mechanism are communicated with oil ducts which are arranged in the sliding shoe main frame and respectively lead to at least two wear-resisting layers, and the connecting mechanism and the drainage mechanism are buried in a solid structure of a guiding sliding shoe; the diverter valve includes valve body, diverter valve core and oil feed pipe, be equipped with valve opening, left diverter hole and right diverter hole in the valve body, the valve opening extends from top to bottom, left diverter hole and right diverter hole are respectively left below and right below slope extension, left diverter hole and right diverter hole's upper end all with the upper end of valve opening communicates with each other, the oil feed pipe inserts from the top the valve body and relatively the valve body is fixed, the oil feed hole of oil feed pipe with the valve opening communicates from top to bottom, diverter valve core fixed mounting in the valve opening and with valve opening shaft hole cooperation, the front and back both sides of the upper portion of diverter valve core are the face of cylinder with the oil feed hole of oil feed pipe forms shaft hole cooperation, the left and right sides of the upper portion of diverter valve core is equipped with a incision respectively, the inner wall and the two places incision of oil feed hole form left shunt opening and right shunt opening respectively, left side mouth and right shunt opening intercommunication oil feed hole with the upper end of valve opening.
2. The guide shoe lubrication structure according to claim 1, wherein: the lower part of the valve hole is sequentially provided with a noncircular cylindrical hole and a threaded hole, the middle part of the shunt valve core is of a cylindrical structure with left and right shoulder chamfer, the lower part of the shunt valve core is of a noncircular cylindrical structure, the middle part and the lower part of the shunt valve core are respectively matched with the valve hole and the noncircular cylindrical hole, the threaded hole is internally provided with a plug in a threaded manner, and the plug is used for providing sealing and axial limiting for the shunt valve core from the lower part.
3. The guide shoe lubrication structure according to claim 1, wherein: and a sealing and axial positioning clamp is arranged between the oil inlet pipe and the shunt valve body.
4. The guide shoe lubrication structure according to claim 1, wherein: the top surface of the slipper earhead is provided with a notch which extends leftwards and rightwards and is upwards opened, the flow dividing valve body is arranged in the notch, a plurality of main pins are arranged on the flow dividing valve body and the slipper earhead in a penetrating mode, and an auxiliary pin is arranged on each main pin in a penetrating mode in the left-right direction.
5. The guide shoe lubrication structure of claim 1,2, 3 or 4, wherein: the drainage mechanism comprises a drainage rod and a drainage rod mounting hole, wherein the drainage rod mounting hole is a vertical blind hole arranged in a solid structure of a guide sliding shoe, the drainage rod is vertically arranged at the bottom of the drainage rod mounting hole, the upper part of the drainage rod is a conical structure body with a small upper part and a big lower part, the middle part of the drainage rod is a cylindrical structure with a plurality of longitudinal drainage grooves on a cylindrical surface, the lower part of the drainage rod is of a cylindrical structure, the lower part of the drainage rod is matched with the drainage rod mounting Kong Zhoukong, the upper part of the drainage rod is partially coaxially embedded in an outlet of the connection mechanism, an annular drainage groove is arranged on the upper part of the drainage rod, the inner wall of the outlet of the connection mechanism is communicated with the drainage groove to form a drainage port, the outlet of the connection mechanism is communicated with the drainage rod mounting hole, and oil passages respectively leading to at least two wear-resisting layers comprise a left oil passage and a right oil passage, and the left oil passage and the part of the drainage rod where the middle part of the drainage rod is located are communicated.
6. The guide shoe lubrication structure according to claim 5, wherein: the top of drainage pole is equipped with the screw hole.
7. The guide shoe lubrication structure according to claim 5, wherein: the main part of coupling mechanism is the steel pipe, the upper end of steel pipe with left branch flow hole and right branch flow hole are linked together, the lower extreme of steel pipe with the drainage pole mounting hole is linked together, is equipped with the arc wall in the solid structure of direction shoe near the shoe coupling lug edge, the majority of steel pipe is laid in the arc wall, the notch of arc wall up, install the backplate on the notch of arc wall, the backplate is sealed the arc wall.
8. The guide shoe lubrication structure of claim 7, wherein: the connecting mechanism further comprises a thread seat, an expansion sleeve and a pressing cap, one end of a straight hole thread of the thread seat is inserted into the left diversion hole and the right diversion hole and is fixedly connected with a valve body of the diversion valve in a threaded mode, the upper end of the steel pipe penetrates through the corresponding thread seat and is inserted into the left diversion hole and the right diversion hole, the steel pipe is matched with a thread seat shaft hole, the expansion sleeve and the pressing cap are sequentially sleeved on the steel pipe after the thread seat, a contact surface between the expansion sleeve and the thread seat is a conical surface, and the pressing cap is fixedly connected with the thread seat in a threaded mode and axially presses the expansion sleeve on the thread seat.
9. The guide shoe lubrication structure of claim 8, wherein: the steel pipe and the arc-shaped groove are fixed by spot welding.
10. The guide shoe lubrication structure of claim 6, wherein: the main part of coupling mechanism is the steel pipe, the upper end of steel pipe with left branch flow hole and right branch flow hole are linked together, the lower extreme of steel pipe with the drainage pole mounting hole is linked together, is equipped with the arc wall in the solid structure of direction shoe near the shoe coupling lug edge, the majority of steel pipe is laid in the arc wall, the notch of arc wall up, install the backplate on the notch of arc wall, the backplate is sealed the arc wall.
11. The guide shoe lubrication structure of claim 10, wherein: the connecting mechanism further comprises a thread seat, an expansion sleeve and a pressing cap, one end of a straight hole thread of the thread seat is inserted into the left diversion hole and the right diversion hole and is fixedly connected with a valve body of the diversion valve in a threaded mode, the upper end of the steel pipe penetrates through the corresponding thread seat and is inserted into the left diversion hole and the right diversion hole, the steel pipe is matched with a thread seat shaft hole, the expansion sleeve and the pressing cap are sequentially sleeved on the steel pipe after the thread seat, a contact surface between the expansion sleeve and the thread seat is a conical surface, and the pressing cap is fixedly connected with the thread seat in a threaded mode and axially presses the expansion sleeve on the thread seat.
12. The guide shoe lubrication structure of claim 11, wherein: the steel pipe and the arc-shaped groove are fixed by spot welding.
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| CN112049636A (en) * | 2020-10-08 | 2020-12-08 | 天地科技股份有限公司上海分公司 | Mining machine walking engagement system adapting to block mineral aggregate |
| CN113482612A (en) * | 2021-08-20 | 2021-10-08 | 郑州机械研究所有限公司 | Novel structure direction piston shoes |
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| 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 |
| CN210087315U (en) * | 2019-05-20 | 2020-02-18 | 天地科技股份有限公司上海分公司 | Guide sliding shoe lubricating structure |
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| DE2741660C2 (en) * | 1977-09-16 | 1981-11-26 | Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum | Roller cutting machine |
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| CN106958444B (en) * | 2015-12-09 | 2023-07-28 | 久益环球地下采矿有限责任公司 | Guide shoe for a mining machine |
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| 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 |
| CN210087315U (en) * | 2019-05-20 | 2020-02-18 | 天地科技股份有限公司上海分公司 | Guide sliding shoe lubricating structure |
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