Coal mining machine supporting device for coal mine

Abstract

The utility model belongs to the technical field of coal mining equipment, and particularly relates to a coal mining machine supporting device for a coal mine, which comprises a supporting piece, a supporting table, foldable guide wheel components and a buffer supporting component, the foldable guide wheel components are mounted at four corners of the bottom surface of the supporting table, and the supporting piece comprises sleepers and guide rails. The buffering supporting assemblies are installed on the left side and the right side of the supporting table and perpendicularly above the guide rails and comprise pressing plates, the pressing plates are installed at the bottom ends of oil buffers, the oil buffers are installed on the bottom face of the supporting table, and rubber pads are arranged on the bottom faces of the pressing plates. The foldable guide wheel assembly can reduce the height to roll on the supporting piece so that the supporting table and the coal mining machine on the supporting table can move smoothly, the foldable guide wheel assembly can also be folded and retracted so that the buffering supporting assembly can make contact with the supporting piece, damping supporting is provided for the coal mining machine, and the pressing plate and the rubber pad can be tightly pressed on the guide rail so that the supporting area and friction force can be effectively improved. And the position stability of coal mining machine operation is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mining equipment, in particular to a supporting device for a coal mining machine used in a coal mine. Background Art

[0002] If the vibration is too great when the coal mining machine is working underground, it will affect the life of the gears and bearings of the mechanical part, and affect the anti-loosening performance of the electrical components in the whole machine connection and the electrical control box. In this case, shock absorbing equipment is installed on the coal mining machine to reduce the vibration amplitude of the coal mining machine.

[0003] Since the coal mining machine will produce violent vibrations when it is working, long-term vibration will have a great impact on the use of the support device. Existing coal mining machines need to move as the excavation face goes deeper, so it is generally necessary to use guide wheels and guide rails to make the coal mining machine move conveniently, and use hydraulic feet to support the coal mining machine during fixed operations; when the coal mining machine is fixed, although there is support from the buffer mechanism and the hydraulic feet, the weight of the coal mining machine is still only applied to a few parts with a small ground contact area, and the fixing performance is not enough. When in use, not only will the coal mining machine be displaced due to vibration, but the bottom plate will also sink and the hydraulic foot support layer will fail, which is not conducive to safe production. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a coal mining machine support device for coal mines, so as to solve the problem that when the existing coal mining machine support device is in fixed operation, the overall weight of the coal mining machine is supported by guide wheels and hydraulic feet with a small ground contact area, which makes it easy to move due to vibration, and the bottom plate sinks, causing the hydraulic foot support layer to fail, which is not conducive to safe production.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a coal mining machine support device for a coal mine, comprising a support member, a support platform, a foldable guide wheel assembly, and a buffer support assembly, wherein the foldable guide wheel assembly is installed at the four corners of the bottom surface of the support platform, the foldable guide wheel assembly comprises a connecting seat 1 and a connecting seat 2, the connecting seat 1 and the connecting seat 2 are respectively rotatably connected to a connecting arm and one end of a cylinder through a pin shaft, the other end of the connecting arm is installed with a bearing, a guide wheel is rotatably installed on the outer side of the bearing, and the other end of the cylinder is rotatably connected to the side surface of the connecting arm through a pin shaft, the support member comprises a sleeper and a guide rail, the buffer support assembly is installed on the left and right sides of the support platform and vertically above the guide rail, the buffer support assembly comprises a pressure plate, the pressure plate is installed at the bottom end of the oil pressure buffer, the oil pressure buffer is installed on the bottom surface of the support platform, and a rubber pad is provided on the bottom surface of the pressure plate.

[0006] The beneficial effects of the utility model are as follows: the foldable guide wheel assembly can be lowered in height and rolled on the support member, so that the support platform and the coal mining machine on the support platform can move smoothly; it can also be folded and retracted so that the buffer support assembly contacts the support member, providing shock-absorbing support for the coal mining machine; the pressure plate and rubber pad can be pressed tightly against the guide rail to effectively increase the support area and friction, thereby ensuring the position stability of the coal mining machine operation.

[0007] In order to enable the buffer support assembly to play an effective buffering effect when the foldable guide wheel assembly is folded and stowed;

[0008] As a further improvement of the above technical solution: when the oil cylinder contracts to the end of the stroke, the bottom end of the guide wheel is not lower than the bottom end of the cylinder body of the hydraulic buffer.

[0009] The beneficial effect of this improvement is that within the effective buffering stroke of the oil pressure buffer, the folded and stowed foldable guide wheel assembly will not touch the support member and thus affect the buffering and shock-absorbing effect of the buffer support assembly.

[0010] In order to effectively ensure the reliability of the buffer support assembly on the support member;

[0011] As a further improvement of the above technical solution: one side of the pressure plate is connected to a limiting plate, the limiting plate is a right-angle trapezoidal block structure, the top surface of the limiting plate is downward, and the inclined surface is arranged in the direction of the rubber pad.

[0012] The beneficial effect of this improvement is that after the foldable guide wheel assembly is folded and stowed, the limit plate moves to one side of the guide rail and gradually sticks to the side of the guide rail, and the limit plates on both sides of the support platform limit each other, effectively preventing the buffer support assembly from sliding in the left and right directions of the support member.

[0013] In order to make the coal mining machine move stably under the support of the foldable guide wheel assembly;

[0014] As a further improvement of the above technical solution: when the oil cylinder is extended to the end of the stroke, the bottom end of the limit plate is not lower than the top surface of the guide rail.

[0015] The beneficial effect of this improvement is that, under the support of the oil cylinder, the guide wheel rolls stably on the guide rail, driving the support platform and the coal mining machine installed on the support platform to move smoothly along the laying direction of the support member.

[0016] In order to effectively increase the contact area between the buffer support assembly and the support member;

[0017] As a further improvement of the above technical solution: the pressing plate is an elongated square plate structure, and the bottom surface of the pressing plate is parallel to the top surface of the guide rail.

[0018] The beneficial effect of this improvement is that the pressure plate can evenly share the pressure of the coal mining machine above, ensuring the stability of the coal mining machine when it is working.

[0019] In order to effectively increase the friction between the buffer support assembly and the support member;

[0020] As a further improvement of the above technical solution: the edge of the rubber pad is flush with the edge of the bottom surface of the pressing plate.

[0021] The beneficial effect of this improvement is that the rubber pad can be closely attached to the surface of the guide rail, effectively increasing the friction between the guide rail and the rubber pad, thereby avoiding horizontal displacement of the coal mining machine relative to the support member when the coal mining machine is working.

[0022] In order to stably install the coal mining machine;

[0023] As a further improvement of the above technical solution: a plurality of coal mining machine connecting bolt holes are provided on the support platform.

[0024] The beneficial effect of this improvement is that the operator can use bolts to insert into the connecting bolt holes of the coal mining machine and connect the coal mining machine installed on the support platform.

[0025] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is the front view of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the foldable guide wheel assembly in the utility model;

[0029] Figure 4 It is a structural schematic diagram of the buffer support assembly in the utility model;

[0030] In the figure: 1. support member; 11. sleeper; 12. guide rail; 2. support platform; 21. coal mining machine connecting bolt hole; 3. foldable guide wheel assembly; 31. connecting seat 1; 32. connecting seat 2; 33. connecting arm; 34. oil cylinder; 35. bearing; 36. guide wheel; 4. buffer support assembly; 41. hydraulic buffer; 42. pressure plate; 43. rubber pad; 44. limit plate. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] like Figure 1—4 shows: a supporting device for a coal mining machine for a coal mine, comprising a supporting member 1, a supporting platform 2, a foldable guide wheel assembly 3, and a buffer support assembly 4, wherein the foldable guide wheel assembly 3 is installed at the four corners of the bottom surface of the supporting platform 2, the foldable guide wheel assembly 3 comprises a connecting seat 1 31 and a connecting seat 2 32, the connecting seat 1 31 and the connecting seat 2 32 are respectively rotatably connected to a connecting arm 33 and one end of an oil cylinder 34 through a pin shaft, the other end of the connecting arm 33 is installed with a bearing 35, a guide wheel 36 is rotatably installed on the outer side of the bearing 35, the other end of the oil cylinder 34 is rotatably connected to the side surface of the connecting arm 33 through a pin shaft, the supporting member 1 comprises a sleeper 11 and a guide rail 12, the buffer support assembly 4 is installed on the left and right sides of the supporting platform 2 and vertically above the guide rail 12, The buffer support assembly 4 includes a pressure plate 42, and the pressure plate 42 is installed at the bottom end of the oil pressure buffer 41. The oil pressure buffer 41 is installed on the bottom surface of the support platform 2. The bottom surface of the pressure plate 42 is provided with a rubber pad 43. The foldable guide wheel assembly 3 can be lowered in height and rolled on the support member 1, so that the support platform 2 and the coal mining machine on the support platform 2 can move smoothly. It can also be folded and retracted to make the buffer support assembly 4 contact the support member 1 to provide shock-absorbing support for the coal mining machine. The pressure plate 42 and the rubber pad 43 can be pressed tightly against the guide rail 12 to effectively increase the support area and friction force, and ensure the position stability of the coal mining machine operation. When the oil cylinder 34 contracts to the end of the stroke, the bottom end of the guide wheel 36 is not lower than the bottom end of the cylinder body of the oil pressure buffer 41. The effective buffering of the oil pressure buffer 41 During the stroke, the folded and stowed foldable guide wheel assembly 3 will not touch the support member 1 and thus affect the buffering and shock-absorbing effect of the buffer support assembly 4. One side of the pressure plate 42 is connected to a limiting plate 44. The limiting plate 44 is a right-angled trapezoidal block structure. The top surface of the limiting plate 44 is downward, and the inclined surface is set in the direction of the rubber pad 43. After the foldable guide wheel assembly 3 is folded and stowed, the limiting plate 44 moves to one side of the guide rail 12 and gradually sticks to the side surface of the guide rail 12. The limiting plates 44 on both sides of the support platform 2 limit each other, effectively preventing the buffer support assembly 4 from sliding in the left and right directions of the support member 1. When the oil cylinder 34 is extended to the end of the stroke, the bottom end of the limiting plate 44 is not lower than the top surface of the guide rail 12. Under the support of the oil cylinder 34, the guide wheel 36 is on the guide rail 1 2, driving the support platform 2 and the coal mining machine installed on the support platform 2 to move smoothly along the laying direction of the support member 1. The pressure plate 42 is an elongated square plate structure. The bottom surface of the pressure plate 42 is parallel to the top surface of the guide rail 12. The pressure plate 42 can evenly share the pressure of the upper coal mining machine to ensure the stability of the coal mining machine when working. The edge of the rubber pad 43 is flush with the edge of the bottom surface of the pressure plate 42. The rubber pad 43 can be tightly attached to the surface of the guide rail 12, effectively increasing the friction between the guide rail 12, thereby avoiding horizontal displacement of the coal mining machine relative to the support member 1 when working. A plurality of coal mining machine connecting bolt holes 21 are provided on the support platform 2. The operator can use bolts to insert the coal mining machine connecting bolt holes 21 and connect the coal mining machine installed on the support platform 2.

[0034] The working principle of the present technical solution is as follows: a bolt is inserted into the connecting bolt hole 21 of the coal mining machine and connected to the coal mining machine installed on the support platform 2; when the coal mining machine needs to be moved, the oil cylinder 34 is extended to the end of the stroke, so that the connecting arm 33 rotates with the pin shaft on the connecting seat 31 as support, driving the guide wheel 36 to move downward, thereby connecting the guide wheel 36 to the surface of the guide rail 12, and lifting the support platform 2 and the coal mining machine, so that the buffer support assembly 4 is separated from the guide rail 12, and then the coal mining machine can be smoothly moved to a suitable working position; when the coal mining machine needs to remain in a fixed position to When performing coal mining operations, the operator controls the oil cylinder 34 to retract to the end of the stroke, thereby moving the guide wheel 36 away from the top surface of the guide rail 12, so that the rubber pad 43 is pressed against the top surface of the guide rail 12, and the limit plate 44 is against one side of the guide rail 12; when the coal mining machine vibrates during operation, the oil pressure buffer 41 expands and contracts and absorbs energy to achieve the effect of buffering and shock absorption; the rubber pad 43 is pressed against the surface of the guide rail 12, so that a large friction force is maintained between the buffer support assembly 4 and the support member 1, effectively preventing the buffer support assembly 4 from sliding on the support member 1.

[0035] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A supporting device for a coal mining machine for a coal mine, characterized in that: The invention comprises a support member (1), a support platform (2), a foldable guide wheel assembly (3), and a buffer support assembly (4); the foldable guide wheel assembly (3) is mounted at four corners of the bottom surface of the support platform (2); the foldable guide wheel assembly (3) comprises a connecting seat 1 (31) and a connecting seat 2 (32); the connecting seat 1 (31) and the connecting seat 2 (32) are rotatably connected to a connecting arm (33) and one end of an oil cylinder (34) through a pin shaft; the other end of the connecting arm (33) is mounted with a bearing (35); the outer side of the bearing (35) is rotatably mounted with a guide wheel ( 36), the other end of the oil cylinder (34) is rotatably connected to the side of the connecting arm (33) through a pin shaft, the support member (1) includes a sleeper (11) and a guide rail (12), the buffer support assembly (4) is installed on the left and right sides of the support platform (2) and vertically above the guide rail (12), the buffer support assembly (4) includes a pressure plate (42), the pressure plate (42) is installed at the bottom end of the oil pressure buffer (41), the oil pressure buffer (41) is installed on the bottom surface of the support platform (2), and the bottom surface of the pressure plate (42) is provided with a rubber pad (43).

2. The supporting device for a coal mining machine according to claim 1, characterized in that: When the oil cylinder (34) contracts to the end of the stroke, the bottom end of the guide wheel (36) is not lower than the bottom end of the cylinder body of the oil pressure buffer (41).

3. The supporting device for a coal mining machine according to claim 1, characterized in that: One side of the pressure plate (42) is connected to a limiting plate (44), the limiting plate (44) is a right-angle trapezoidal block structure, the top surface of the limiting plate (44) is downward, and the inclined surface is arranged in the direction of the rubber pad (43).

4. The supporting device for a coal mining machine according to claim 3, characterized in that: When the oil cylinder (34) is extended to the end of the stroke, the bottom end of the limit plate (44) is not lower than the top surface of the guide rail (12).

5. The supporting device for a coal mining machine according to claim 1, characterized in that: The pressing plate (42) is an elongated square plate structure, and the bottom surface of the pressing plate (42) is parallel to the top surface of the guide rail (12).

6. The supporting device for a coal mining machine according to claim 1, characterized in that: The edge of the rubber pad (43) is flush with the edge of the bottom surface of the pressing plate (42).

7. The supporting device for a coal mining machine according to claim 1, characterized in that: The support platform (2) is provided with a plurality of coal mining machine connecting bolt holes (21).

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