Supporting sliding shoe of coal mining machine
By setting up visible connection parts on the legs of the coal miner supporting the sliding boots and adopting a split sliding boot design, the problem of inconvenient connection inspection and overall replacement of the sliding boots in the prior art is solved, and the effect of improving equipment safety performance and reducing maintenance costs is achieved.
Patent Information
- Application Number
- CN202422367625.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The connection method of the leg supporting the sliding boots of the existing coal mining machine is inconvenient to inspection and replacement, which makes it difficult to detect loose connections, which seriously affects the safe operation of the equipment. In addition, when the sliding boots are worn seriously, it needs to be replaced as a whole, which is high maintenance cost.
A coal mining machine supporting sliding boot is designed, and its legs are provided with a first connecting part and a second connecting part, and connected to the housing of the coal mining machine through a pin shaft, so as to facilitate viewing of the fixed condition and reduce the probability of falling off. At the same time, the sliding boots adopt a split structure design. When wear is severe, you only need to replace the boot shell.
Through the design of pin connection, the operator can view the fixing condition of the legs, reduce the probability of falling off caused by loosening, and improve the safety performance of the equipment. The split slipper design reduces maintenance costs and avoids the need for overall replacement.
Smart Images
Figure CN223018610U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a component of a shearer, in particular to a support sliding shoe of a shearer. Background Art
[0002] The support sliding shoe of a shearer is a part installed at the bottom of a drum shearer, which has extremely high requirements for wear resistance and strength, and plays a guiding and supporting role for the shearer.
[0003] In the existing support sliding shoe, the connecting surface between the leg and the housing is a horizontal plane, and the connecting screws need to be installed and disassembled from the bottom of the housing upward. When the shearer is maintained underground, the maintenance personnel cannot observe the screws, and it is impossible to detect them in time after loosening, which seriously affects the safe operation of the shearer. Moreover, the disassembly and replacement are very difficult, resulting in a high time cost for maintenance and seriously affecting the production capacity. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a support sliding shoe of a shearer aiming at the defects existing in the above technology. The leg is provided with a first connecting part and a second connecting part, and the two connecting parts are connected to the housing of the shearer through a pin shaft, which is convenient for the operator to check the fixing condition of the leg, reduces the probability of the leg falling off due to the loosening of the fixing part, and improves the safety performance of the equipment.
[0005] The purpose of the utility model is realized as follows: it includes a sliding shoe and a leg. The sliding shoe is hinged to the leg. The leg is V-shaped, and its upper part is provided with a first connecting part and a second connecting part. The first connecting part and the second connecting part are connected to the housing through a pin shaft. Its lower part is provided with a third connecting part, and the third connecting part is hinged to the sliding shoe through a pin shaft.
[0006] In the above structure, the pin shaft is stepped, including a first section, a second section and a third section, and the diameters increase in sequence. A pressing plate is provided at the end of the third section, and the pressing plate forms a barrier to the end of the pin shaft to prevent the pin shaft from coming out. The pressing plate is fixed by bolts.
[0007] In the above structure, a groove body is provided at the bottom of the housing, and shaft holes are provided on both sides of the groove body. The first connecting part and the second connecting part are embedded inside the groove body and are connected through a pin shaft.
[0008] In the above structure, the sliding shoe includes a shoe body and a shoe shell. The shoe shell is arranged at the lower part of the shoe body and is detachably connected to the shoe body.
[0009] In the above structure, the shoe shell includes a bottom plate and vertical plates at both ends of the bottom plate. The shoe body is embedded and installed inside the shoe shell.
[0010] In the above structure, the bottom of the boot body is a first L-shaped surface, the bottom plate of the boot shell is provided with a second L-shaped surface, and the first L-shaped surface is buckled with the second L-shaped surface, so as to form a protection for the side surface of the boot body through the second L-shaped surface of the boot shell.
[0011] In the above structure, the boot body and the boot shell are positioned by a cylindrical wedge block. After the boot body and the boot shell are assembled, positioning holes are provided at the mating surfaces at both ends, and the cylindrical wedge block is embedded in the positioning holes for positioning.
[0012] In the above structure, a countersunk hole is provided at the top of the positioning hole, a pressing head is provided at the top of the cylindrical wedge block, and the pressing head is embedded in the countersunk hole after the cylindrical wedge block is inserted into the positioning hole.
[0013] In the above structure, a circular hole is provided along the axis of the cylindrical wedge block, a threaded hole corresponding to the positioning hole is provided on the bottom plate of the boot shell, and the cylindrical wedge block is fixedly connected to the bottom plate of the boot shell through a bolt.
[0014] The beneficial effects of the present utility model are as follows: The support leg is provided with a first connecting portion and a second connecting portion, and the two connecting portions are connected to the housing of the shearer through a pin shaft, which is convenient for the operator to check the fixing condition of the support leg, reduces the probability of the support leg falling off due to loose connection, and improves the safety performance of the equipment. Since the bottom surface of the sliding shoe wears severely during the operation process, in the prior art, the whole sliding shoe needs to be replaced. In this application, the sliding shoe adopts a split structure design. When the sliding shoe wears severely, it is not necessary to replace the whole, but only the boot shell needs to be replaced, which reduces the equipment maintenance cost. Description of the Drawings
[0015] Figure 1 is the schematic diagram of the overall structure of the support sliding shoe of the present utility model;
[0016] Figure 2 is the schematic sectional structure diagram of the support sliding shoe of the present utility model;
[0017] Figure 3 is the schematic diagram of the structure of the sliding shoe of the present utility model Figure 1 ;
[0018] Figure 4 is the schematic diagram of the structure of the sliding shoe of the present utility model Figure 2 . Detailed Embodiments
[0019] The present application provides a support sliding shoe for a shearer, which includes a sliding shoe and a leg. The leg is provided with a first connecting portion and a second connecting portion. The two connecting portions are connected to the housing of the shearer through a pin shaft, which facilitates the operator to check the fixing condition of the leg, reduces the probability of the leg falling off due to loose connection, and improves the safety performance of the equipment. It solves the problem in the prior art that the housing and the leg are connected by bolts, which is inconvenient for inspection and replacement. In the present application, the sliding shoe adopts a split structure design. When the sliding shoe is severely worn, it is not necessary to replace the whole, but only the shoe shell needs to be replaced, which reduces the equipment maintenance cost. It solves the problem in the prior art that the whole sliding shoe needs to be replaced when it is severely worn, resulting in high maintenance cost.
[0020] The following further illustrates this embodiment with reference to the accompanying drawings:
[0021] As Figure 1 — Figure 4 can be seen, the present application includes a sliding shoe 1 and a leg 2. The sliding shoe 1 is hinged to the leg 2. The leg 2 is V-shaped, and its upper part is provided with a first connecting portion 210 and a second connecting portion 220. The first connecting portion 210 and the second connecting portion 220 are connected to the housing 4 through a pin shaft 3. The lower part of the leg is provided with a third connecting portion 230, and the third connecting portion 230 is hinged to the sliding shoe 1 through a pin shaft 3. In this embodiment, the connection structure between the existing leg 2 and the housing 4 is changed. On the one hand, the connection stability is improved, which facilitates the operator to check the fixing condition of the leg 2 and reduces the probability of the leg 2 falling off due to loose connection. On the other hand, it is convenient for installation and disassembly, saves the time cost of equipment maintenance, and improves the production capacity.
[0022] On the basis of the above embodiment, preferably, the pin shaft 3 is stepped, including a first section 310, a second section 320 and a third section 330, and the diameters increase in sequence. A pressing plate 5 is provided at the end of the third section 330. The pressing plate 5 forms a barrier to the end of the pin shaft 3 to prevent the pin shaft 3 from coming out. The pressing plate 5 is fixed by bolts 6. In this embodiment, the pin shaft 3 is set in a stepped form, where the diameter of the third section 330 is the largest. After the pressing plate 5 is provided at the end of the third section 330, the pin shaft 3 can be prevented from coming out, and the structure is simple and stable.
[0023] On the basis of the above embodiment, preferably, a groove body 410 is provided at the bottom of the housing 4, and shaft holes are provided on both sides of the groove body 410. The first connecting portion 210 and the second connecting portion 220 are embedded inside the groove body 410 and connected through a pin shaft 3.
[0024] Based on the above embodiments, preferably, the sliding shoe 1 includes a shoe body 110 and a shoe shell 120, and the shoe shell 120 is disposed at the lower part of the shoe body 110 and detachably connected to the shoe body 110. In this embodiment, since the bottom of the sliding shoe 1 is most severely worn during use, the replacement condition of the sliding shoe 1 generally depends on the wear condition of the bottom. In the prior art, the sliding shoe 1 is replaced as a whole, which invisibly increases the equipment maintenance cost. The sliding shoe 1 adopts a split design, and the easily worn part is the shoe shell 120. When it is severely worn, only the shoe shell 120 needs to be replaced, reducing the equipment maintenance cost.
[0025] Based on the above embodiments, preferably, the shoe shell 120 includes a bottom plate 121 and vertical plates 122 at both ends of the bottom plate 121, and the shoe body 110 is embedded in the shoe shell 120. In this embodiment, the vertical plates 122 are provided at both ends of the bottom plate 121. Since coal blocks and other objects will impact both ends of the sliding shoe 1 during the movement of the sliding shoe 1, after the vertical plates 122 are provided, more comprehensive protection can be formed for the shoe body 110, extending its service life.
[0026] Based on the above embodiments, preferably, the bottom of the shoe body 110 is a first L-shaped surface 111, and the bottom plate 121 of the shoe shell 120 is provided with a second L-shaped surface 123. The first L-shaped surface 111 is engaged with the second L-shaped surface 123, and the side surface of the shoe body 110 is protected by the second L-shaped surface 123 of the shoe shell 120, extending its service life.
[0027] Based on the above embodiments, preferably, the shoe body 110 and the shoe shell 120 are positioned by a cylindrical wedge 7. After the shoe body 110 and the shoe shell 120 are assembled, positioning holes are provided at the mating surfaces at both ends, and the cylindrical wedge 7 is embedded in the positioning holes for positioning. Among them, the axis of the positioning hole is preferably arranged on the mating surface of the shoe body 110 and the shoe shell 120, so that the positioning holes are evenly distributed on the shoe body 110 and the shoe shell 120, each accounting for half.
[0028] Based on the above embodiments, preferably, a counterbore is provided at the top of the positioning hole, and a pressing head 701 is provided at the top of the cylindrical wedge 7. After the cylindrical wedge 7 is inserted into the positioning hole, the pressing head 701 is embedded in the counterbore. The pressing head 701 plays a pressing role to prevent the components from coming out.
[0029] Based on the above embodiments, preferably, the cylindrical wedge 7 is provided with a circular hole 702 along its axis, and the bottom plate 121 of the shoe shell 120 is provided with a threaded hole 124 corresponding to the positioning hole. After the bolt 6 passes through the circular hole 702 from the top of the cylindrical wedge 7, it is connected to the threaded hole 124 on the bottom plate 121, thereby fixedly connecting the cylindrical wedge 7 and the bottom plate 121.
[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
Claims
1. A supporting sliding shoe for a coal mining machine, comprising a sliding shoe and a supporting leg, wherein the sliding shoe is hinged to the supporting leg, and wherein: The support leg is V-shaped, and a first connecting part and a second connecting part are provided on the upper part thereof, the first connecting part and the second connecting part are connected to the shell through a pin shaft, and a third connecting part is provided on the lower part thereof, and the third connecting part is hinged to the sliding shoe through a pin shaft.
2. A coal mining machine support shoe according to claim 1, characterized in that: The pin shaft is stepped, including a first section, a second section and a third section, and the diameter increases successively. A pressure plate is provided at the end of the third section, and the pressure plate forms a barrier for the end of the pin shaft to prevent the pin shaft from falling out. The pressure plate is fixed by bolts.
3. A coal mining machine support shoe according to claim 1, characterized in that: A groove body is provided at the bottom of the shell body, and shaft holes are provided on both sides of the groove body. The first connecting part and the second connecting part are embedded in the groove body and are connected by a pin shaft.
4. A coal mining machine support shoe according to claim 1, characterized in that: The sliding shoe comprises a shoe body and a shoe shell, wherein the shoe shell is arranged at the lower part of the shoe body and is detachably connected to the shoe body.
5. A coal mining machine support shoe according to claim 4, characterized in that: The boot shell comprises a bottom plate and vertical plates at both ends of the bottom plate, and the boot body is embedded in the boot shell.
6. A coal mining machine support shoe according to claim 5, characterized in that: The bottom of the boot body is a first L-shaped surface, the bottom plate of the boot shell is provided with a second L-shaped surface, the first L-shaped surface is buckled with the second L-shaped surface, and the second L-shaped surface of the boot shell forms protection for the side of the boot body.
7. A coal mining machine support shoe according to claim 4, 5 or 6, characterized in that: The boot body and the boot shell are positioned by means of a cylindrical wedge block. After the boot body and the boot shell are assembled, positioning holes are provided at the matching surfaces at both ends, and cylindrical wedge blocks are embedded in the positioning holes for positioning.
8. A coal mining machine support shoe according to claim 7, characterized in that: A countersunk hole is arranged on the top of the positioning hole, and a pressing head is arranged on the top of the cylindrical wedge block. After the cylindrical wedge block is inserted into the positioning hole, the pressing head is embedded in the countersunk hole.
9. A coal mining machine support shoe according to claim 8, characterized in that: The cylindrical wedge block is provided with a circular hole along its axis, the bottom plate of the boot shell is provided with threaded holes corresponding to the positioning holes, and the cylindrical wedge block is fixedly connected to the bottom plate of the boot shell by bolts.