A protective device for coal mining collection and a method of using the same

Abstract

The application discloses a kind of protective devices for coal mining and its use method, including support seat, the left side of the support seat is fixedly connected with connecting box, the inner cavity of the connecting box is provided with cylinder, the output end of the cylinder is penetrated to the outside of connecting box and is fixedly connected with first locating plate.The application is used for stably supporting coal mining machine by support seat, through the cooperation of cylinder, first locating plate, first movable rod, second movable rod, gear teeth and second locating plate, the second locating plate and the first locating plate are in contact with coal mining machine, and then the positioning of coal mining machine is completed, the stability of coal mining machine during operation is ensured, the situation of coal mining machine falling is effectively improved, and the problem that the coal mining machine is directly placed on the protective plate during use without positioning treatment, so that the coal mining machine will slowly shift due to vibration during operation, and then the situation of falling and failure will occur, thereby the entire coal mining work will be interrupted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mining, in particular to a protection device for coal mining and a use method thereof. BACKGROUND

[0002] Coal mining requires the use of a coal mining machine during collection. The coal mining machine is one of the important equipment for realizing the mechanization and modernization of coal production. Mechanized coal mining can reduce physical labor, improve safety, achieve high yield, high efficiency, and low consumption, and thus the safety of the coal mining machine is particularly important.

[0003] According to patent application No. 202023115048.7, a coal mining machine protection device for coal mining is disclosed, which includes a mounting plate, a hydraulic rod, a protection plate, a discharge plate, and a discharger. The top surface of the mounting plate is fixedly connected with at least two hydraulic rods. The top end of the hydraulic rod is fixed with the protection plate. The middle part of the protection plate is provided with a mounting slot. One side of the mounting slot is movably connected with the discharge plate through a fixed shaft. The discharge plate rotates relative to the mounting slot. The discharger is installed below the protection plate to support the discharge plate. After the discharger is started, it acts on the discharge plate to make it tilt downward for discharging. The design scheme of the comparative case solves the problem of deformation and collapse of the existing protection device and shortens the service life. The practicality and stability of the coal mining machine protection device for coal mining are increased.

[0004] The technical scheme in the comparative case can well support the coal mining machine during use, and can well alleviate the deformation and collapse of the protection device, thereby prolonging the service life of the coal mining machine protection device. The coal mining machine will vibrate during operation. Since the coal mining machine is directly placed on the protection plate during use, the coal mining machine is not positioned, so that the coal mining machine will slowly shift due to vibration during operation, and thus will fall and cause failure, thereby interrupting the entire coal mining work and causing huge economic losses. SUMMARY

[0005] The present application aims to provide a protection device for coal mining and a use method thereof, which has the advantage of facilitating positioning of the coal mining machine, and solves the problem of vibration of the coal mining machine during operation, since the coal mining machine is directly placed on the protection plate during use, the coal mining machine is not positioned, so that the coal mining machine will slowly shift due to vibration during operation, and thus will fall and cause failure, thereby interrupting the entire coal mining work and causing huge economic losses.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A protection device for coal mining, comprising a support seat, a connecting box is fixedly connected to the left side of the support seat, a gas cylinder is arranged in the inner cavity of the connecting box, the output end of the gas cylinder penetrates to the outside of the connecting box and is fixedly connected with a first positioning plate, the front end and the rear end of the left side of the first positioning plate are fixedly connected with a first movable rod, the front end and the rear end of the inner cavity of the connecting box are movably connected with a second movable rod, the front end and the rear end of the inner cavity of the connecting box and located between the second movable rod and the first movable rod are movably connected with a gear through a bearing, the side of the second movable rod and the first movable rod close to the gear is fixedly connected with a tooth, the tooth is engaged with the gear, the right end of the second movable rod is fixedly connected with a second positioning plate, the bottom of the connecting box is fixedly connected with a connecting frame, and the right side of the connecting frame is fixedly connected with the support seat, the front end and the rear end of the bottom of the connecting frame are fixedly connected with a support rod around the bottom of the support seat, a sleeve is slidably connected to the surface of the support rod, a spring is fixedly connected to the bottom of the inner cavity of the sleeve, and the top of the spring is fixedly connected with the support rod, a damper is arranged in the inner cavity of the spring, and the top and the bottom of the damper are fixedly connected with the bottom of the support rod and the bottom of the inner cavity of the sleeve respectively.

[0007] Preferably, the two sides of the support rod are fixedly connected with a limiting block, limiting grooves are formed in the two sides of the inner cavity of the sleeve, and the end of the limiting block away from the support rod extends into the inner cavity of the limiting groove and is slidably connected with the inner cavity of the limiting groove.

[0008] Preferably, the side of the second positioning plate and the first positioning plate close to each other is fixedly connected with a plastic pad, and the side of the plastic pad away from the second positioning plate and the first positioning plate is in contact with the coal mining machine.

[0009] Preferably, the left end of the gas cylinder is fixedly connected with a support block, and the top and the bottom of the support block are fixedly connected with the top and the bottom of the inner cavity of the connecting box respectively.

[0010] Preferably, the two sides of the connecting box are provided with through holes, and the two ends of the first movable rod and the second movable rod penetrate into the inner cavity of the through hole and are slidably connected with the inner cavity of the through hole.

[0011] Preferably, the bottom of the sleeve is movably connected with a universal wheel, and the surface of the universal wheel is provided with a brake pad.

[0012] Preferably, the use method comprises the following steps:

[0013] A. First, the coal mining machine is placed on top of the support base and between the first and second positioning plates. The support base provides stable support for the coal mining machine. Then, the cylinder is activated. The output end of the cylinder drives the first positioning plate to move to the right. At the same time, the first positioning plate moves the first movable rod to the right. The first movable rod drives the tooth transmission on one side of its surface. The tooth drives the gear to rotate. At the same time, the gear rotates and drives the tooth on the surface of the second movable rod to move to the left. The tooth drives the second movable rod and the second positioning plate to move to the left until the second positioning plate and the first positioning plate bring the plastic pad into contact with the coal mining machine. This completes the positioning of the coal mining machine, ensuring its stability during operation and effectively preventing the coal mining machine from falling.

[0014] B. When the coal mining machine vibrates during operation, the machine causes the support seat to vibrate. The support seat is then subjected to force, which transmits the vibration force to the support rod. The support rod moves downward under the force, causing the damper and spring to move downward. This causes the spring and damper to compress and deform. At the same time, the deformation force of the spring and damper buffers and weakens the vibration force. Then, the restoring force of the spring and damper causes the support rod to move upward and reset. The support rod then causes the support seat to reset, thereby canceling out the force generated by the vibration. This effectively ensures the stability of the support seat during support and effectively protects the coal mining machine.

[0015] C. When the coal mining machine needs to be de-positioned after use, the cylinder is activated. The output end of the cylinder drives the first positioning plate to move to the left. At the same time, the first positioning plate moves the first movable rod to the left. The first movable rod drives the tooth transmission on one side of its surface. The tooth drives the gear to rotate. At the same time, the gear rotates and drives the tooth on the surface of the second movable rod to move to the right. The tooth drives the second movable rod and the second positioning plate to move to the right until the second positioning plate and the first positioning plate drive the plastic pad to disengage from the coal mining machine, thereby releasing the positioning of the coal mining machine.

[0016] D. When it is necessary to move the support seat, first close the brake pads to disengage them from the casters. Then, push the support seat or connecting box. The support seat and connecting box will be forced to move the support rod and sleeve to one side. The casters can reduce the resistance to the movement, thus facilitating the movement of the support seat.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The application is used for stably supporting the coal mining machine, through the cooperation of the air cylinder, the first positioning plate, the first movable rod, the second movable rod, the tooth and the second positioning plate, the output end of the air cylinder drives the first positioning plate to move to the right side, the first positioning plate drives the first movable rod to move to the right side at the same time, the first movable rod drives the tooth on the surface side to transmit, the tooth drives the gear to rotate, the gear drives the tooth on the surface of the second movable rod to move to the left side at the same time, the tooth drives the second movable rod and the second positioning plate to move to the left side, until the second positioning plate and the first positioning plate contact with the coal mining machine, and then the positioning of the coal mining machine is completed, the stability of the coal mining machine during operation is ensured, the situation of the coal mining machine falling is effectively improved, through the cooperation of the supporting rod, the sleeve, the spring and the damper, the deformation force of the spring and the damper buffers and weakens the vibration force, and the reset elastic force of the spring and the damper drives the supporting rod to move upward and reset, the supporting rod drives the supporting seat to reset, and then the force generated by the vibration is offset, the stability of the supporting seat during supporting is effectively ensured, the coal mining machine can be effectively protected, and the problem that the coal mining machine will vibrate during operation is solved, the coal mining machine is directly placed on the protection plate during use, the coal mining machine is not positioned, the coal mining machine will slowly displace due to vibration during operation, and then the situation of falling and failure occurs, so that the whole coal mining work is interrupted, and great economic loss is caused. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the application;

[0020] Figure 2 It is a top view sectional structural schematic view of the connecting box of the application;

[0021] Figure 3 It is a partial sectional structural schematic view of the separation of the supporting rod and the sleeve of the application;

[0022] Figure 4 It is a structural schematic view of the connecting box of the application.

[0023] In the drawing: 1, supporting seat; 2, connecting box; 3, air cylinder; 4, first positioning plate; 5, first movable rod; 6, second movable rod; 7, tooth; 8, second positioning plate; 9, connecting frame; 10, supporting rod; 11, sleeve; 12, spring; 13, damper; 14, limiting block; 15, limiting groove; 16, plastic pad; 17, supporting block; 18, through hole; 19, gear; 20, universal wheel. DETAILED DESCRIPTION

[0024] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0025] The support seat 1, the connecting box 2, the air cylinder 3, the first positioning plate 4, the first movable rod 5, the second movable rod 6, the tooth 7, the second positioning plate 8, the connecting frame 9, the support rod 10, the sleeve 11, the spring 12, the damper 13, the limiting block 14, the limiting groove 15, the plastic pad 16, the support block 17, the through hole 18, the gear 19 and the universal wheel 20 are all general standard parts or parts known to those skilled in the art, and their structures and principles can be known by technical personnel through technical manuals or obtained through conventional experimental methods.

[0026] Please refer to Figures 1-4The utility model provides a kind of protection device for coal mining, including support seat 1, the left side of support seat 1 is fixedly connected with connecting box 2, the inner chamber of connecting box 2 is provided with cylinder 3, the output end of cylinder 3 is penetrated to the outside of connecting box 2 and is fixedly connected with first positioning plate 4, the front end and rear end of first positioning plate 4 left side are all fixedly connected with first movable rod 5, the front end and rear end of connecting box 2 inner chamber are all movably connected with second movable rod 6, the front end and rear end of connecting box 2 inner chamber and between second movable rod 6 and first movable rod 5 are movably connected with gear 19 by bearing, the side of second movable rod 6 and first movable rod 5 close gear 19 is fixedly connected with tooth 7, tooth 7 and gear 19 engage, the right end of second movable rod 6 is fixedly connected with second positioning plate 8, the bottom of connecting box 2 is fixedly connected with connecting frame 9, and the right side of connecting frame 9 is fixedly connected with support seat 1, the front end and rear end of connecting frame 9 bottom are all fixedly connected with support rod 10 with the periphery of support seat 1 bottom, the surface of support rod 10 is slidably connected with sleeve 11, the bottom of sleeve 11 inner chamber is fixedly connected with spring 12, and the top of spring 12 is fixedly connected with support rod 10, the inner chamber of spring 12 is provided with damper 13, and the top and bottom of damper 13 are fixedly connected with the bottom of support rod 10 and the bottom of sleeve 11 inner chamber respectively, by support seat 1, for the stable support of coal winning machine, by the cooperation of cylinder 3, first positioning plate 4, first movable rod 5, second movable rod 6, tooth 7 and second positioning plate 8, the output end of cylinder 3 drives first positioning plate 4 to move to right side, first positioning plate 4 moves while driving first movable rod 5 to move to right side, first movable rod 5 drives the transmission of the tooth 7 on its surface side, tooth 7 drives gear 19 to rotate, gear 19 rotates while driving the tooth 7 on the surface of second movable rod 6 to move to left side, tooth 7 drives second movable rod 6 and second positioning plate 8 to move to left side, until second positioning plate 8 and first positioning plate 4 contact with coal winning machine, and then the positioning of coal winning machine is completed, ensure the stability of coal winning machine when operating, effectively improve the situation of coal winning machine falling, by the cooperation of support rod 10, sleeve 11, spring 12 and damper 13, the deformation force of spring 12 and damper 13 weakens the force of vibration, and by the reset force of spring 12 and damper 13 drives support rod 10 to move upward and reset, support rod 10 drives support seat 1 to reset, and then the force generated by vibration is offset, effectively ensure the stability of support seat 1 when supporting, can effectively protect coal winning machine, solve the vibration of coal winning machine when operating, since coal winning machine is directly placed on the protection plate when in use, without positioning treatment to coal winning machine, so that coal winning machine will slowly displace due to vibration when operating, and then the situation of falling and failure occurs, so that the whole coal mining work will be interrupted, cause huge economic loss.

[0027] Specific, both sides of the support rod 10 are fixedly connected with a limiting block 14, the inner cavity of the sleeve 11 is provided with a limiting slot 15 on both sides, the end of the limiting block 14 away from the support rod 10 extends to the inner cavity of the limiting slot 15 and is slidably connected with the inner cavity of the limiting slot 15, by setting the limiting block 14 and the limiting slot 15, the effect of limiting the support rod 10 is achieved, thereby ensuring that the support rod 10 does not dislocate when moving.

[0028] Specific, the side close to the second positioning plate 8 and the first positioning plate 4 is fixedly connected with a plastic pad 16, the side away from the second positioning plate 8 and the first positioning plate 4 is in contact with the coal mining machine, by setting the plastic pad 16, the effect of preventing the coal mining machine from slipping is achieved, and the wear caused by positioning the coal mining machine is effectively improved.

[0029] Specific, the left end of the air cylinder 3 is fixedly connected with a support block 17, the top and bottom of the support block 17 are fixedly connected with the top and bottom of the inner cavity of the connecting box 2, by setting the support block 17, the effect of stably supporting the air cylinder 3 is achieved, and the stability of the support block 17 when operating is effectively ensured.

[0030] Specific, the connecting box 2 is provided with a through hole 18 on both sides, the two ends of the first movable rod 5 and the second movable rod 6 penetrate the inner cavity of the through hole 18 and are slidably connected with the inner cavity of the through hole 18, by setting the through hole 18, the effect of limiting the movement track of the second movable rod 6 and the first movable rod 5 is achieved, thereby ensuring the stability of the first movable rod 5 and the second movable rod 6 when moving.

[0031] Specific, the bottom of the sleeve 11 is movably connected with a universal wheel 20, the surface of the universal wheel 20 is provided with a brake pad, by setting the universal wheel 20, the effect of facilitating the overall position to move or be positioned is achieved, and the convenience when the position is transferred is improved.

[0032] Specific, the method for using the device includes the following steps:

[0033] A, first, place the coal mining machine on the top of the support seat 1 and between the first positioning plate 4 and the second positioning plate 8, stably support the coal mining machine through the support seat 1, then start the air cylinder 3, the output end of the air cylinder 3 drives the first positioning plate 4 to move to the right, the first positioning plate 4 drives the first movable rod 5 to move to the right at the same time, the first movable rod 5 drives the teeth 7 on one side of the surface to transmit, the teeth 7 drive the gear 19 to rotate, the gear 19 rotates at the same time to drive the teeth 7 on the surface of the second movable rod 6 to move to the left, the teeth 7 drive the second movable rod 6 and the second positioning plate 8 to move to the left, until the second positioning plate 8 and the first positioning plate 4 drive the plastic pad 16 to contact with the coal mining machine, thereby completing the positioning of the coal mining machine, ensuring the stability of the coal mining machine when operating, and effectively improving the situation of the coal mining machine falling;

[0034] B, when the coal mining machine operates to generate vibration, the coal mining machine drives the support base 1 to vibrate, the support base 1 transmits the vibration force to the support rod 10, the support rod 10 moves downward under the force, the support rod 10 drives the damper 13 and the spring 12 to move downward, the spring 12 and the damper 13 are compressed to deform, at the same time, the deformation force of the spring 12 and the damper 13 buffers and weakens the vibration force, then the support rod 10 is driven upward to reset by the reset elastic force of the spring 12 and the damper 13, the support rod 10 drives the support base 1 to reset, thereby offsetting the force generated by the vibration, effectively ensuring the stability of the support base 1 when supporting, and effectively protecting the coal mining machine;

[0035] C, when the coal mining machine is finished and needs to be released from positioning, the cylinder 3 is opened, the output end of the cylinder 3 drives the first positioning plate 4 to move to the left side, the first positioning plate 4 drives the first movable rod 5 to move to the left side at the same time, the first movable rod 5 drives the gear teeth 7 on one side of the surface to transmit, the gear teeth 7 drive the gear 19 to rotate, the gear 19 rotates at the same time to drive the gear teeth 7 on the surface of the second movable rod 6 to move to the right side, the gear teeth 7 drive the second movable rod 6 and the second positioning plate 8 to move to the right side, until the second positioning plate 8 and the first positioning plate 4 drive the plastic pad 16 to be out of contact with the coal mining machine, thereby releasing the positioning of the coal mining machine;

[0036] D, when the support base 1 needs to be moved, first, the brake pad is closed, so that the brake pad is out of contact with the universal wheel 20, then the support base 1 or the connecting box 2 is pushed, the support base 1 and the connecting box 2 drive the support rod 10 and the sleeve 11 to move to one side, the resistance of the position movement can be weakened through the universal wheel 20, thereby facilitating the position movement of the support base 1.

[0037] The standard parts used in the present application file can be purchased from the market, and can be customized according to the description and drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, the control mode is automatically controlled through the controller, the control circuit of the controller can be realized by simple programming of the person skilled in the art, which belongs to the common knowledge in the art, and the present application is mainly used to protect the mechanical device, so the control mode and circuit connection are not explained in detail.

[0038] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it should be taken in its broadest possible sense. For example, the terms "a", "an", and "the" include both singular and plural referents unless the context clearly dictates otherwise. The terms "comprises", "comprising", "includes", "including" and the like can be used in conjunction with the term "consisting of to include the elements or steps listed after such conjunctive language, but not to the exclusion of other elements or steps. The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. The term "plurality" means two or more. The term "consisting essentially of to provide that the composition or process include additional steps, elements, compounds, compositions of matter, or materials not specifically recited. The use of the terms "first", "second", and the like does not imply any particular ordering, but rather are used to denote distinct and separate steps. Where the context requires, the singular forms "a", "an" and "the" include their corresponding plural referents unless the context clearly dictates otherwise. Terms such as "above" and "below" refer to positions relative to the orientation of the figures and are used for purposes of illustration and description only. Terms such as "first" and "second" are used to identify various elements, but the elements should not be limited by these terms. The use of the terms "first" and "second" are not necessarily intended to connote chronological order, but rather serve as labels to distinguish one element from another. The use of the terms "a", "an", and "the" and / or the use of articles in the singular and plural sense are intended to cover a

[0039] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, substitutions, and alterations of the present application can be made by one of ordinary skill in the art without departing from the spirit and scope of the present application, which is defined solely by the claims and their equivalents.

Claims

1. A protective device for coal mining collection, comprising a support seat (1), characterized in that: The left side of the support seat (1) is fixedly connected with a connecting box (2), the inner cavity of the connecting box (2) is provided with a pneumatic cylinder (3), the output end of the pneumatic cylinder (3) penetrates to the outside of the connecting box (2) and is fixedly connected with a first positioning plate (4), the front end and the rear end of the left side of the first positioning plate (4) are fixedly connected with a first movable rod (5), the front end and the rear end of the inner cavity of the connecting box (2) are movably connected with a second movable rod (6), the front end and the rear end of the inner cavity of the connecting box (2) and located between the second movable rod (6) and the first movable rod (5) are movably connected with a gear (19) through a bearing, the side of the second movable rod (6) and the first movable rod (5) close to the gear (19) is fixedly connected with a gear tooth (7), the gear tooth (7) and the gear (19) are engaged, the right end of the second movable rod (6) is fixedly connected with a second positioning plate (8), the bottom of the connecting box (2) is fixedly connected with a connecting frame (9), and the right side of the connecting frame (9) is fixedly connected with the support seat (1), the front end and the rear end of the bottom of the connecting frame (9) and the periphery of the bottom of the support seat (1) are fixedly connected with a support rod (10), the surface of the support rod (10) is slidably connected with a sleeve (11), the bottom of the inner cavity of the sleeve (11) is fixedly connected with a spring (12), and the top of the spring (12) is fixedly connected with the support rod (10), the inner cavity of the spring (12) is provided with a damper (13), and the top and the bottom of the damper (13) are fixedly connected with the bottom of the support rod (10) and the bottom of the inner cavity of the sleeve (11) respectively. The two sides of the support rod (10) are fixedly connected with a limiting block (14), the two sides of the inner cavity of the sleeve (11) are provided with a limiting groove (15), and the end of the limiting block (14) away from the support rod (10) extends into the inner cavity of the limiting groove (15) and is slidably connected with the inner cavity of the limiting groove (15). The left end of the pneumatic cylinder (3) is fixedly connected with a support block (17), and the top and the bottom of the support block (17) are fixedly connected with the top and the bottom of the inner cavity of the connecting box (2) respectively. The two sides of the connecting box (2) are provided with a through hole (18), and the two ends of the first movable rod (5) and the second movable rod (6) penetrate into the inner cavity of the through hole (18) and are slidably connected with the inner cavity of the through hole (18).

2. The protective device for coal mining collection according to claim 1, characterized in that: The side of the second positioning plate (8) and the first positioning plate (4) close to each other is fixedly connected with a plastic pad (16), and the side of the plastic pad (16) away from the second positioning plate (8) and the first positioning plate (4) is in contact with the coal winning machine.

3. The protective device for coal mining according to claim 1, characterized in that: The bottom of the sleeve (11) is movably connected with a universal wheel (20), and the surface of the universal wheel (20) is provided with a brake pad.

4. The use of a protective device for coal mining according to any one of claims 1-3, characterized in that: The use method comprises the following steps: A. First, by placing the coal mining machine on top of the support base (1) and between the first positioning plate (4) and the second positioning plate (8), the support base (1) provides stable support for the coal mining machine. Then, the cylinder (3) is turned on. The output end of the cylinder (3) drives the first positioning plate (4) to move to the right. While the first positioning plate (4) moves, it drives the first movable rod (5) to move to the right. The first movable rod (5) drives the teeth (7) on one side of its surface to drive the transmission. The teeth (7) drives the gear (19) to rotate. While the gear (19) rotates, it drives the teeth (7) on the surface of the second movable rod (6) to move to the left. The teeth (7) drive the second movable rod (6) and the second positioning plate (8) to move to the left until the second positioning plate (8) and the first positioning plate (4) drive the plastic pad (16) to contact the coal mining machine, thereby completing the positioning of the coal mining machine, ensuring the stability of the coal mining machine during operation, and effectively improving the situation of the coal mining machine falling. B. When the coal mining machine vibrates during operation, the coal mining machine drives the support seat (1) to vibrate. The support seat (1) is subjected to force and transmits the vibration force to the support rod (10). The support rod (10) is subjected to force and moves downward. The support rod (10) drives the damper (13) and spring (12) to move downward, causing the spring (12) and damper (13) to compress and deform. At the same time, the deformation force of the spring (12) and damper (13) buffers and weakens the vibration force. Then, the restoring elastic force of the spring (12) and damper (13) drives the support rod (10) to move upward and reset. The support rod (10) drives the support seat (1) to reset, thereby offsetting the force generated by the vibration, effectively ensuring the stability of the support seat (1) when it is supported, and effectively protecting the coal mining machine. C. When the coal mining machine needs to be de-positioned after use, the cylinder (3) is turned on. The output end of the cylinder (3) drives the first positioning plate (4) to move to the left. At the same time as the first positioning plate (4) moves, the first movable rod (5) moves to the left. The first movable rod (5) drives the teeth (7) on one side of its surface to drive the transmission. The teeth (7) drives the gear (19) to rotate. At the same time as the gear (19) rotates, the teeth (7) on the surface of the second movable rod (6) can move to the right. The teeth (7) drive the second movable rod (6) and the second positioning plate (8) to move to the right until the second positioning plate (8) and the first positioning plate (4) drive the plastic pad (16) to disengage from the coal mining machine, thereby de-positioning the coal mining machine. D. When it is necessary to move the position of the support seat (1), first close the brake pads to disengage the brake pads from the caster wheel (20), and then push the support seat (1) or the connecting box (2). The support seat (1) and the connecting box (2) will be driven by the force to move the support rod (10) and the sleeve (11) to one side. The resistance to the position movement can be reduced by the caster wheel (20), which makes it easier for the support seat (1) to move.

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