Buffer structure of mining single hydraulic prop

Abstract

The utility model relates to the technical field of hydraulic props, and discloses a mining single hydraulic prop buffer structure which comprises a hydraulic prop body, a base is arranged at the bottom of the hydraulic prop body, a mounting groove is formed in the inner wall of the base, a buffer assembly is arranged in the base, and a limiting assembly is arranged on the outer wall of the base. The buffering structure of the mining single hydraulic prop is provided with the sliding groove, the fixing groove, the supporting plate, the supporting rod, the rubber block, the fixing plate, the buffering damper, the buffering spring, the bottom plate and the fixing bolt, when impact force suddenly acts on the hydraulic prop body, the supporting rod drives the rubber block to move in the sliding groove, the friction force is increased through the arrangement of the rubber block, and the buffering effect is improved. And through work of the buffer damper and the buffer spring, the impact force is buffered, impact and damage to the hydraulic prop body and the base are reduced, and the requirements of people are met.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic props, in particular to a buffer structure of a single hydraulic prop for mining. Background Art

[0002] In the mining process, single hydraulic props are important supporting equipment, and their stability and safety are directly related to the safety and efficiency of mining production. However, when traditional single hydraulic props are subjected to complex and changeable geological conditions and impact loads in mines, problems such as damage to the prop base and overall instability of the prop often occur, which seriously affects the normal progress of mining production.

[0003] In order to solve the above problems, various improvement schemes have been proposed in the prior art, such as increasing the material thickness of the pillar base, which improves the strength and stability of the pillar, but also increases the weight of the pillar, and the buffering effect for impact loads is not ideal.

[0004] The prior art patent document with publication number CN210460707U provides a single hydraulic support for mining. When the hydraulic support is tilted, the base of the hydraulic support is located inside the clamp, and the clamp clamps the base. Then the fixed seat is fixed on the ground, and then the motor body inside the motor housing is controlled to run, so that the motor body drives the main gear to rotate, and the main gear and the sub-gear are meshed with each other, so that the sub-gear drives the threaded rod to rotate. Under the action of the nut seat, when the upper end of the hydraulic column is used in conjunction with the metal hinged top beam, the threaded rod will drive the clamp to move toward the fixed seat, thereby moving the base inside the clamp toward the fixed seat, and then pulling the tilted hydraulic support back to its original position according to the base, so that the hydraulic support is perpendicular to the ground again, avoiding the hydraulic support having to be dismantled and reinstalled after tilting, which is beneficial to saving time and manpower and ensuring work efficiency.

[0005] Although the above-mentioned prior art can pull the inclined hydraulic support back to its original position according to the base to make it vertical again, when the mining environment changes suddenly, such as the soil layer on the top plate supported by the hydraulic support collapses and generates impact force, the traditional single hydraulic support is often unable to withstand this sudden gravity impact, resulting in damage to the support base and affecting its use, and cannot effectively buffer the impact. Therefore, we need a buffer structure for a single hydraulic support for mining. Utility Model Content

[0006] The utility model aims to provide a buffer structure of a single hydraulic prop for mining, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a buffer structure of a single hydraulic prop for mining, comprising a hydraulic prop body, a base is arranged at the bottom of the hydraulic prop body, and an installation groove is opened on the inner wall of the base, a buffer component is arranged inside the base, and a limit component is arranged on the outer wall of the base;

[0008] The buffer assembly comprises a slide groove, a fixing groove is provided at the bottom of the base, a support plate is slidably connected to the inner wall of the mounting groove, and a support rod is fixedly connected to the bottom of the support plate, a rubber block is fixedly connected to the outer wall of the support rod, and a fixing plate is fixedly connected to the bottom end of the support rod, a buffer damper is provided at the bottom of the fixing plate, and a buffer spring is provided at the bottom of the fixing plate, the bottom of the base is detachably connected to a bottom plate, and a fixing bolt is provided on the outer wall of the bottom plate;

[0009] The limiting assembly includes a limiting groove, the outer wall of the hydraulic support body is fixedly connected to the limiting block, and the outer wall of the limiting block is fixedly connected to a rubber sleeve, the top of the base is detachably connected to a cover plate, and the outer wall of the cover plate is provided with mounting bolts.

[0010] Preferably, an anti-skid pad is detachably connected to the bottom of the base plate, and a through groove is provided on the outer wall of the anti-skid pad, and a fastening bolt is provided on the inner wall of the anti-skid pad.

[0011] Preferably, the base forms a sliding structure with the support plate through the mounting groove, and the outer wall of the support plate fits with the inner wall of the mounting groove.

[0012] Preferably, the shape and size of the inner wall of the slide groove matches the shape and size of the outer wall of the rubber block, and the inner wall of the slide groove fits the outer wall of the rubber block.

[0013] Preferably, there are multiple buffer dampers, and the multiple buffer dampers are arranged on the fixing plate at equal distances.

[0014] Preferably, the shape and size of the inner wall of the limiting groove matches the shape and size of the outer wall of the limiting block, and the inner wall of the limiting groove fits the outer wall of the limiting block.

[0015] Preferably, the base forms a fixed structure with the cover plate through mounting bolts, and one end of the mounting bolt is threaded through the cover plate and extends into the base for connection.

[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0017] First, the utility model is provided with a slide groove, a fixed groove, a support plate, a support rod, a rubber block, a fixed plate, a buffer damper, a buffer spring, a bottom plate and a fixing bolt. When an impact force suddenly acts on the hydraulic support body, the support rod drives the rubber block to move in the slide groove. The setting of the rubber block increases the friction force and initially reduces the impact. The buffer damper and the buffer spring work to buffer the impact force, reduce the impact and damage to the hydraulic support body and the base, and meet people's needs.

[0018] Second, the utility model is provided with a limit groove, a limit block, a rubber sleeve, a cover plate and a mounting bolt. By arranging a limit block on the hydraulic support body, the limit block moves in the limit groove, thereby limiting the movement range of the hydraulic support body to prevent it from being damaged due to excessive deformation. By setting the cover plate, the limit block can be prevented from moving out of the limit groove of the base to enhance safety. By wrapping the rubber sleeve on the limit block, not only the friction between the limit block and the limit groove is increased, but also due to its own elastic characteristics, the impact can be further mitigated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the hydraulic support body and base of the utility model;

[0021] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 This is a schematic diagram of the base and bottom plate structure of the utility model.

[0023] Among them: 1. Hydraulic support body; 2. Base; 3. Installation groove; 4. Buffer assembly; 401. Slide groove; 402. Fixed groove; 403. Support plate; 404. Support rod; 405. Rubber block; 406. Fixed plate; 407. Buffer damper; 408. Buffer spring; 409. Bottom plate; 410. Fixing bolt; 5. Limiting assembly; 501. Limiting groove; 502. Limiting block; 503. Rubber sleeve; 504. Cover plate; 505. Installation bolt; 6. Anti-slip pad; 7. Through groove; 8. Fastening bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 A buffer structure of a single hydraulic prop for mining includes a hydraulic prop body 1, a base 2 is provided at the bottom of the hydraulic prop body 1, and a mounting groove 3 is provided on the inner wall of the base 2, a buffer component 4 is provided inside the base 2, and a limit component 5 is provided on the outer wall of the base 2; the buffer component 4 includes a slide groove 401, a fixing groove 402 is provided at the bottom of the base 2, a support plate 403 is slidably connected to the inner wall of the mounting groove 3, and a support rod 404 is fixedly connected to the bottom of the support plate 403, a rubber block 405 is fixedly connected to the outer wall of the support rod 404, and the support rod 404 is fixedly connected to the outer wall of the rubber block 405. The bottom end is fixedly connected with a fixing plate 406, the bottom of the fixing plate 406 is provided with a buffer damper 407, and the bottom of the fixing plate 406 is provided with a buffer spring 408, the bottom of the base 2 is detachably connected with a bottom plate 409, and the outer wall of the bottom plate 409 is provided with a fixing bolt 410; the limiting assembly 5 includes a limiting groove 501, the outer wall of the hydraulic support body 1 is fixedly connected with a limiting block 502, and the outer wall of the limiting block 502 is fixedly connected with a rubber sleeve 503, the top of the base 2 is detachably connected with a cover plate 504, and the outer wall of the cover plate 504 is provided with mounting bolts 505.

[0026] Through the above technical solution, when there is a sudden impact force acting on the hydraulic prop body 1, the support rod 404 drives the rubber block 405 to move in the slide groove 401. The setting of the rubber block 405 increases the friction force and initially reduces the impact. The buffer damper 407 and the buffer spring 408 work to buffer the impact force, reduce the impact and damage to the hydraulic prop body 1 and the base 2, and meet people's needs; by arranging a limit block 502 on the hydraulic prop body 1, the limit block 502 moves in the limit groove 501, thereby limiting the movement range of the hydraulic prop body 1 and preventing it from being damaged due to excessive deformation. By setting the cover plate 504, the limit block 502 can be prevented from moving out of the limit groove 501 of the base 2 to enhance safety. By wrapping the rubber sleeve 503 on the limit block 502, not only the friction between the limit block 502 and the limit groove 501 is increased, but also due to its own elastic characteristics, the impact can be further reduced.

[0027] Specifically, the bottom of the bottom plate 409 is detachably connected with an anti-skid pad 6 , and the outer wall of the anti-skid pad 6 is provided with a through groove 7 , and the inner wall of the anti-skid pad 6 is provided with a fastening bolt 8 .

[0028] Through the above technical scheme, the anti-skid pad 6 is provided to enhance the anti-skid ability, which facilitates the stable placement of the base 2. The number of fastening bolts 8 is multiple, and the anti-skid pad 6 can be well fixed on the base plate 409 by passing through the gasket, which facilitates the installation and removal of the anti-skid pad 6. The anti-skid pad 6 is provided with a through groove 7, and the through groove 7 is aligned with the bolt hole on the base plate 409, so that the base plate 409 can be removed without removing the anti-skid pad 6.

[0029] Specifically, the base 2 forms a sliding structure with the support plate 403 through the installation groove 3 , and the outer wall of the support plate 403 fits with the inner wall of the installation groove 3 .

[0030] Through the above technical solution, the connection effect between the base 2 and the mounting groove 3 and the support plate 403 is strengthened, which facilitates the sliding of the support plate 403 in the mounting groove 3 and makes the sliding of the support plate 403 more stable.

[0031] Specifically, the shape and size of the inner wall of the slide groove 401 match the shape and size of the outer wall of the rubber block 405 , and the inner wall of the slide groove 401 fits the outer wall of the rubber block 405 .

[0032] Through the above technical solution, the connection effect between the slide groove 401 and the rubber block 405 is strengthened. When the rubber block 405 slides in the slide groove 401, the impact force is consumed by the larger friction force, thereby achieving the purpose of reducing the impact force.

[0033] Specifically, there are multiple buffer dampers 407 , and the multiple buffer dampers 407 are arranged on the fixing plate 406 at equal distances.

[0034] Through the above technical solution, by providing multiple buffer dampers 407 and multiple buffer springs 408, the impact force can be further absorbed and dispersed, thereby greatly reducing the impact and damage to the hydraulic support body 1 and the base 2.

[0035] Specifically, the shape and size of the inner wall of the limiting groove 501 matches the shape and size of the outer wall of the limiting block 502 , and the inner wall of the limiting groove 501 fits the outer wall of the limiting block 502 .

[0036] Through the above technical solution, the connection effect between the limiting groove 501 and the limiting block 502 is strengthened, so that the limiting block 502 can move more stably in the limiting groove 501.

[0037] Specifically, the base 2 and the cover plate 504 form a fixed structure through the mounting bolt 505, and one end of the mounting bolt 505 is threaded through the cover plate 504 and extends into the base 2 for connection.

[0038] Through the above technical solution, the connection effect between the base 2 and the mounting bolts 505 and the cover plate 504 is strengthened. The number of mounting bolts 505 is multiple, which can well fix the cover plate 504 on the base 2, making it easy to install and remove the cover plate 504.

[0039] During use, when there is a sudden impact force acting on the hydraulic prop body 1, the hydraulic prop body 1 will move downward, and the downward movement of the hydraulic prop body 1 drives the limit block 502 to move in the limit groove 501, and the limit block 502 drives the rubber sleeve 503 to move. The movement of the rubber sleeve 503 generates a large friction force, which can consume part of the impact force. When the hydraulic prop body 1 moves downward, the support plate 403 moves, and the support plate 403 drives the support rod 404 to move downward, and the support rod 404 drives the rubber block 405 to move in the slide groove 401. The movement of the rubber block 405 generates a large friction force, which can consume part of the impact force. The support rod 404 drives the fixed plate 406 to move, so that the buffer damper 407 and the buffer spring 408 work, which can further absorb and disperse the impact force. Through the action of multiple buffer mechanisms, the impact and damage to the hydraulic prop body 1 and the base 2 are greatly reduced, and the hydraulic prop body 1 is prevented from being damaged by sudden impact force. This completes all the work. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A buffer structure of a single hydraulic prop for mining, comprising a hydraulic prop body (1), characterized in that: A base (2) is provided at the bottom of the hydraulic support body (1), and a mounting groove (3) is provided on the inner wall of the base (2); a buffer component (4) is provided inside the base (2), and a limit component (5) is provided on the outer wall of the base (2); The buffer assembly (4) comprises a slide groove (401), a fixing groove (402) is provided at the bottom of the base (2), a support plate (403) is slidably connected to the inner wall of the mounting groove (3), and a support rod (404) is fixedly connected to the bottom of the support plate (403), a rubber block (405) is fixedly connected to the outer wall of the support rod (404), and a fixing plate (406) is fixedly connected to the bottom end of the support rod (404), a buffer damper (407) is provided at the bottom of the fixing plate (406), and a buffer spring (408) is provided at the bottom of the fixing plate (406), the bottom of the base (2) is detachably connected to a bottom plate (409), and a fixing bolt (410) is provided on the outer wall of the bottom plate (409); The limit assembly (5) comprises a limit groove (501), the outer wall of the hydraulic support body (1) is fixedly connected to a limit block (502), and the outer wall of the limit block (502) is fixedly connected to a rubber sleeve (503), the top of the base (2) is detachably connected to a cover plate (504), and the outer wall of the cover plate (504) is provided with mounting bolts (505).

2. The buffer structure of a single hydraulic prop for mining according to claim 1, characterized in that: The bottom of the base plate (409) is detachably connected to an anti-skid pad (6), and the outer wall of the anti-skid pad (6) is provided with a through groove (7), and the inner wall of the anti-skid pad (6) is provided with a fastening bolt (8).

3. The buffer structure of a single hydraulic prop for mining according to claim 1, characterized in that: The base (2) forms a sliding structure with the support plate (403) through the installation groove (3), and the outer wall of the support plate (403) fits with the inner wall of the installation groove (3).

4. The buffer structure of a single hydraulic prop for mining according to claim 1, characterized in that: The shape and size of the inner wall of the slide groove (401) match the shape and size of the outer wall of the rubber block (405), and the inner wall of the slide groove (401) fits the outer wall of the rubber block (405).

5. The buffer structure of a single hydraulic prop for mining according to claim 1, characterized in that: The number of the buffer dampers (407) is multiple, and the multiple buffer dampers (407) are arranged on the fixing plate (406) at equal distances.

6. The buffer structure of a single hydraulic prop for mining according to claim 1, characterized in that: The shape and size of the inner wall of the limiting groove (501) match the shape and size of the outer wall of the limiting block (502), and the inner wall of the limiting groove (501) fits the outer wall of the limiting block (502).

7. The buffer structure of a single hydraulic prop for mining according to claim 1, characterized in that: The base (2) and the cover plate (504) form a fixed structure through the mounting bolts (505), and one end of the mounting bolt (505) is threadedly passed through the cover plate (504) and extends into the base (2) for connection.

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