Device for automatically polishing wear-resistant layer of guide sliding shoe of coal mining machine

Abstract

The utility model discloses a device for automatically grinding a wear-resistant layer of a guide sliding shoe of a coal mining machine, which comprises a clamping mechanism arranged on a working table and a grinding wheel coaxially arranged at the end part of a horizontal main shaft of a horizontal surface grinding machine, and a first outer side surface of the guide sliding shoe is horizontally arranged on the working table; the clamping mechanism comprises two pressing plates used for being tightly pressed on the second outer side face of the guide sliding shoe, the front end face of the side, away from the horizontal main shaft, of the grinding wheel is an inwards-concave end face, and the pressing plates are used for being tightly pressed on the second outer side face of the guide sliding shoe. The rear end face of the grinding wheel close to one side of the horizontal spindle is a straight end face. Under the driving of the horizontal main shaft of the horizontal surface grinding machine, the abrasion-resistant layers on the four side faces of the sliding groove can be ground at a time through the grinding wheels, and the guide sliding shoes do not need to be disassembled, assembled and positioned for many times; the front end face of the grinding wheel is a concave end face, so that the frequency of replacing the grinding wheel is reduced, and the grinding efficiency of the wear-resistant layer is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing guide shoes of coal mining machines, and in particular relates to a device for automatically grinding the wear-resistant layer of guide shoes of coal mining machines. Background Art

[0002] The guide shoe is one of the important components in the coal mining machine travel system. Its use condition is relatively special. It is in direct contact with the scraper conveyor and plays a key role in the travel guidance of the coal mining machine. The terrain of the coal mining face is complex. The coal mining machine has frequent forward and backward swings and high-frequency vibrations during travel, which causes strong wear on the contact surface of the guide shoe in the chute. In order to ensure the stability of the coal mining machine and improve the wear resistance of the contact surface of the guide shoe in the chute, at present, a wear-resistant layer is usually set on the contact surface of the guide shoe in the chute. However, the surface flatness and smoothness of the wear-resistant layer are insufficient, which will affect the use performance of the guide shoe. If there are hard bumps on the wear-resistant layer, when the guide shoe and the chute move relative to each other, the chute will be damaged, affecting the normal use of the coal mining machine. Therefore, in order to improve the surface quality of the wear-resistant layer, a device for automatically grinding the wear-resistant layer of the guide shoe of the coal mining machine should be provided. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a device for automatically grinding the wear-resistant layer of the guide shoe of a coal mining machine in view of the deficiencies in the above-mentioned prior art. The device has a reasonable design. Driven by the horizontal spindle of the horizontal surface grinder, the wear-resistant layers on the four sides of the slide groove can be ground at one time using a grinding wheel, without the need to disassemble and position the guide shoe multiple times. The front end face of the grinding wheel is an inwardly concave end face. When the front end face is started to be ground, the multiple hard protrusions on the wear-resistant layer will preferentially contact the raised parts of the front end face, thereby reducing the frequency of replacing the grinding wheel and improving the service life of the grinding wheel and the processing efficiency of grinding the wear-resistant layer.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a device for automatically grinding the wear-resistant layer of the guide shoe of a coal mining machine, characterized in that: it includes a clamping mechanism installed on a workbench and a grinding wheel coaxially installed on the end of a horizontal spindle of a horizontal surface grinder, the first outer side surface of the guide shoe is horizontally placed on the workbench, a pad is placed under the ear plate of the guide shoe close to the workbench side, the slide groove of the guide shoe is in a horizontal state, the clamping mechanism includes two pressing plates for pressing on the second outer side surface of the guide shoe, the diameter of the grinding wheel is smaller than the groove width of the slide groove of the guide shoe, the front end face of the grinding wheel away from the horizontal spindle side is a concave end face, and the rear end face of the grinding wheel close to the horizontal spindle side is a straight end face.

[0005] The above-mentioned device for automatically grinding the wear-resistant layer of the guide shoe of a coal mining machine is characterized in that the pressure plate is fixedly mounted on the workbench by means of T-bolts and locking nuts, and an adjustable support rod is arranged through the tail end of the pressure plate.

[0006] The above-mentioned device for automatically grinding the wear-resistant layer of the guide shoe of a coal mining machine is characterized in that a shaft sleeve is installed at the end of the horizontal main shaft, the grinding wheel is coaxially sleeved on the shaft sleeve, and the grinding wheel is fixedly installed at the end of the horizontal main shaft by a fixing plate and connecting bolts.

[0007] Compared with the prior art, the utility model has the following advantages:

[0008] 1. The utility model places the first outer side surface of the guide shoe horizontally on the workbench so that the slide groove of the guide shoe is in a horizontal state, and the opening direction of the slide groove faces the horizontal main shaft. The grinding wheel is coaxially installed at the end of the horizontal main shaft, and the diameter of the grinding wheel is smaller than the groove width of the slide groove of the guide shoe. In actual use, the grinding wheel can enter the slide groove from the openings at both ends of the slide groove, and the horizontal main shaft can drive the grinding wheel to achieve high-speed rotation. At the same time, it can drive the grinding wheel to achieve linear movement in the vertical and horizontal directions, so that the grinding wheel can be used to grind the wear-resistant layer in the slide groove.

[0009] 2. The utility model ensures that the guide shoe's slide groove is in a horizontal state by placing a pad under the ear plate of the guide shoe close to the workbench. The clamping mechanism is installed on the workbench, and the clamping mechanism includes two pressure plates, both of which are pressed tightly on the second outer side of the guide shoe, so as to ensure the stability of the guide shoe clamped on the workbench.

[0010] 3. The outer cylindrical surface, front end surface and rear end surface of the grinding wheel of the utility model can all play a role in grinding. Driven by the horizontal spindle of the horizontal surface grinder, the grinding wheel can grind the wear-resistant layers on the four sides of the slide groove at one time, without the need to disassemble and position the guide shoe multiple times.

[0011] 4. The front end face of the grinding wheel of the utility model is a concave end face. When the front end face is used for grinding, the multiple hard protrusions on the wear-resistant layer will preferentially contact the raised portion of the front end face, that is, the raised portion of the front end face is first used to counteract the multiple hard protrusions on the wear-resistant layer. Even if the raised portion of the front end face and the multiple hard protrusions are smoothed at the same time, the grinding performance of the concave portion of the front end face will not be affected, thereby reducing the frequency of replacing the grinding wheel and improving the service life of the grinding wheel and the processing efficiency of grinding the wear-resistant layer.

[0012] In summary, the utility model has a reasonable design. Driven by the horizontal spindle of the horizontal surface grinder, the grinding wheel can be used to grind the wear-resistant layers on the four sides of the slide groove at one time, without the need to disassemble and position the guide shoe multiple times. The front end face of the grinding wheel is a concave end face. When the front end face is started to be ground, the multiple hard protrusions on the wear-resistant layer will preferentially contact the raised parts of the front end face, thereby reducing the frequency of replacing the grinding wheel and improving the service life of the grinding wheel and the processing efficiency of grinding the wear-resistant layer.

[0013] The present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 for Figure 1 Top view of the .

[0016] Figure 3 for Figure 1 AA section view.

[0017] Figure 4 It is a schematic diagram of the connection structure between the grinding wheel and the horizontal spindle of the utility model.

[0018] Description of reference numerals:

[0019] 1—guide shoe; 1-1—first outer side surface; 1-2—second outer side surface;

[0020] 1-3—ear plate; 1-4—wear-resistant layer; 1-5—slideway;

[0021] 2—working table; 2-1—T-slot; 3—pressing plate;

[0022] 4—T-bolt; 5—locking nut; 6—adjustable support rod;

[0023] 7—pad; 8—horizontal spindle; 9—grinding wheel;

[0024] 9-1—outer cylindrical surface; 9-2—front end surface; 9-3—rear end surface;

[0025] 10—shaft sleeve; 11—fixing plate; 12—connecting bolts. DETAILED DESCRIPTION

[0026] like Figures 1 to 4As shown, the utility model includes a clamping mechanism installed on a workbench 2 and a grinding wheel 9 coaxially installed on the end of a horizontal spindle 8 of a horizontal surface grinder, the first outer side surface 1-1 of the guide slide 1 is horizontally placed on the workbench 2, a cushion block 7 is placed under the ear plate 1-3 of the guide slide 1 close to the workbench 2, the slide groove 1-5 of the guide slide 1 is in a horizontal state, the clamping mechanism includes two pressing plates 3 for pressing on the second outer side surface 1-2 of the guide slide 1, the diameter of the grinding wheel 9 is smaller than the groove width of the slide groove 1-5 of the guide slide 1, the front end face 9-2 of the grinding wheel 9 away from the horizontal spindle 8 is a concave end face, and the rear end face 9-3 of the grinding wheel 9 close to the horizontal spindle 8 is a straight end face.

[0027] In this embodiment, by placing the first outer side surface 1-1 of the guide shoe 1 horizontally on the workbench 2, the slide groove 1-5 of the guide shoe 1 is in a horizontal state, and the opening direction of the slide groove 1-5 is toward the horizontal main shaft 8, the grinding wheel 9 is coaxially installed at the end of the horizontal main shaft 8, and the diameter of the grinding wheel 9 is smaller than the groove width of the slide groove 1-5 of the guide shoe 1. In actual use, the grinding wheel 9 can enter the slide groove 1-5 from the openings at both ends of the slide groove 1-5, and the horizontal main shaft 8 can drive the grinding wheel 9 to achieve high-speed rotation. At the same time, it can drive the grinding wheel 9 to achieve linear movement in the vertical and horizontal directions, so that the grinding wheel 9 can be used to grind the wear-resistant layer 1-4 in the slide groove 1-5.

[0028] During actual installation, since the first outer side surface 1-1 of the guide shoe 1 is placed horizontally on the workbench 2, it is necessary to place a pad 7 under the ear plate 1-3 of the guide shoe 1 close to the workbench 2 to ensure that the slide groove 1-5 of the guide shoe 1 is in a horizontal state. By installing a clamping mechanism on the workbench 2, and the clamping mechanism includes two pressure plates 3, both of which are pressed tightly on the second outer side surface 1-2 of the guide shoe 1, the stability of the guide shoe 1 clamped on the workbench 2 can be ensured.

[0029] In actual use, since the four sides of the slide groove 1-5 are provided with the wear-resistant layer 1-4, after the guide shoe 1 is clamped and fixed on the workbench 2, the grinding wheel 9 enters the slide groove 1-5, and the outer cylindrical surface 9-1, the front end surface 9-2 and the rear end surface 9-3 of the grinding wheel 9 can all play a role in grinding. Driven by the horizontal spindle 8 of the horizontal surface grinder, the grinding wheel 9 can grind the wear-resistant layers 1-4 on the four sides of the slide groove 1-5 at one time, without the need to disassemble and position the guide shoe 1 multiple times.

[0030] In this embodiment, the front end face 9-2 of the grinding wheel 9 away from the side of the horizontal main axis 8 is a concave end face. The reason is that if the front end face 9-2 is a straight end face, when the front end face 9-2 is used for grinding, the multiple hard protrusions on the wear-resistant layer 1-4 will easily cause pits and grooves to appear on the front end face 9-2 of the grinding wheel 9, resulting in the need to frequently replace the grinding wheel 9; and when the front end face 9-2 is a concave end face, when the front end face 9-2 is used for grinding, the multiple hard protrusions on the wear-resistant layer 1-4 will preferentially contact the raised part of the front end face 9-2, that is, the raised part of the front end face 9-2 is first used to counteract the multiple hard protrusions on the wear-resistant layer 1-4, even if the raised part of the front end face 9-2 and the multiple hard protrusions are smoothed at the same time, it will not affect the grinding performance of the concave part of the front end face 9-2, thereby reducing the frequency of replacing the grinding wheel 9 and improving the service life of the grinding wheel 9 and the processing efficiency of grinding the wear-resistant layer.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, the pressing plate 3 is fixedly mounted on the workbench 2 by means of T-bolts 4 and locking nuts 5 , and an adjustable support rod 6 is disposed at the rear end of the pressing plate 3 .

[0032] like Figure 4 As shown, in this embodiment, a sleeve 10 is installed at the end of the horizontal main shaft 8, and the grinding wheel 9 is coaxially sleeved on the sleeve 10. The grinding wheel 9 is fixedly installed at the end of the horizontal main shaft 8 by a fixing plate 11 and connecting bolts 12.

[0033] like Figure 1 As shown, in actual use, the first outer side surface 1-1 of the guide slide 1 is placed horizontally on the workbench 2, and a pad 7 is placed under the ear plate 1-3 of the guide slide 1 close to the workbench 2, so that the slide groove 1-5 of the guide slide 1 is in a horizontal state; then, two pressing plates 3 are installed on the workbench 2, so that the two pressing plates 3 are pressed tightly on the second outer side surface 1-2 of the guide slide 1; the grinding wheel 9 is driven by the horizontal main shaft 8 to rotate at a high speed and enter the slide groove 1-5, and the grinding wheel 9 is moved linearly in the vertical and horizontal directions to achieve the purpose of grinding the wear-resistant layer 1-4 on the four sides of the slide groove 1-5 with the grinding wheel 9. The grinding accuracy is high and the surface finish of the wear-resistant layer 1-4 can be improved.

[0034] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A device for automatically grinding the wear-resistant layer of a guide shoe of a coal mining machine, characterized in that: The invention comprises a clamping mechanism installed on a workbench (2) and a grinding wheel (9) coaxially installed at the end of a horizontal spindle (8) of a horizontal surface grinder, wherein the first outer side surface (1-1) of the guide shoe (1) is horizontally placed on the workbench (2), a cushion block (7) is placed under an ear plate (1-3) of the guide shoe (1) close to the workbench (2), the slide groove (1-5) of the guide shoe (1) is in a horizontal state, the clamping mechanism comprises two pressing plates (3) for pressing on the second outer side surface (1-2) of the guide shoe (1), the diameter of the grinding wheel (9) is smaller than the groove width of the slide groove (1-5) of the guide shoe (1), the front end surface (9-2) of the grinding wheel (9) away from the horizontal spindle (8) is an inwardly concave end surface, and the rear end surface (9-3) of the grinding wheel (9) close to the horizontal spindle (8) is a straight end surface.

2. A device for automatically grinding the wear-resistant layer of a guide shoe of a coal mining machine according to claim 1, characterized in that: The pressing plate (3) is fixedly mounted on the workbench (2) via T-bolts (4) and locking nuts (5), and an adjustable support rod (6) is arranged at the rear end of the pressing plate (3).

3. A device for automatically grinding the wear-resistant layer of a guide shoe of a coal mining machine according to claim 1, characterized in that: A shaft sleeve (10) is installed at the end of the horizontal main shaft (8), and the grinding wheel (9) is coaxially sleeved on the shaft sleeve (10). The grinding wheel (9) is fixedly installed at the end of the horizontal main shaft (8) via a fixing plate (11) and connecting bolts (12).

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