CN219826891U

CN219826891U - Colliery thin layer coal-winning support frame with protection machanism

Info

Publication number: CN219826891U
Application number: CN202320774354.6U
Authority: CN
Inventors: 张波; 李建明; 张建静; 邓桂波; 殷浩
Original assignee: Shenmu Dongmei Technology Co ltd
Current assignee: Shenmu Dongmei Technology Co ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-10-13
Anticipated expiration: 2033-04-10

Abstract

The utility model relates to a coal mine thin layer coal mining support frame with a protection mechanism, which comprises a box body, wherein a lifting mechanism is arranged in the box body, a top plate is arranged on the lifting mechanism, a buffer mechanism is arranged on the top plate, the buffer mechanism comprises a fixed block fixed on the upper surface of the top plate and four shells, a rubber block is fixed on the upper surface of the fixed block, a first spring is fixed on the lower surface of an inner cavity of the shell, a movable rod penetrating through and extending to the upper side of the shell is fixed on the upper surface of the first spring, and support plates are fixed on the upper surfaces of the four movable rods. This colliery thin layer coal-winning support frame with protection machanism, buffer gear through setting up, roof drive fixed block and casing remove together, and casing and movable rod cooperation extrude first spring, and the backup pad can drive the movable block through the articulated rod simultaneously and remove and extrude the second spring, cushions roof and backup pad, prevents that the roof from removing too soon and causing the damage to the colliery top.

Description

Colliery thin layer coal-winning support frame with protection machanism

Technical Field

The utility model relates to the technical field of coal mines, in particular to a coal mine thin layer coal mining support frame with a protection mechanism.

Background

The coal mine is a region for mining coal resources in a mining area rich in coal, is generally divided into an underground coal mine and an open pit coal mine, when a coal seam is far away from the ground surface, coal is generally selected to be mined into an underground mining roadway, the underground coal mine is generally selected to be mined into a coal mine by directly stripping off an earth surface soil layer when the coal seam is very close to the ground surface, the open pit coal mine is the open pit coal mine, most of the coal mine in China belongs to the underground coal mine, the coal mine range comprises the ground and underground and a large area of related facilities, the coal mine is a reasonable space for mining when the human is mining a geological layer rich in coal, and generally comprises a roadway, a well cave, a mining face and the like, and a supporting frame is needed for mining coal of a coal mine thin layer.

For example, chinese patent (bulletin number: CN 217400940U) discloses a supporting frame for coal mine application, which comprises a supporting plate, a telescopic rod, a telescopic cylinder, a fixing frame, a fixing box, a brake block, a movable shaft, and further comprises: the sleeve is sleeved at the top end of the surface of the telescopic cylinder; the bearing is positioned at the bottom end of the inner side surface of the sleeve and plays a limiting role on the sleeve; the brush is positioned at the top end of the inner side surface of the sleeve and is used for cleaning dust; through designed motor, bull stick, first gear, second gear, sleeve, brush for colliery support frame when using, the dirt that the telescopic link surface is attached can be by effectual clean up, has guaranteed the follow-up smoothness in flexible in-process of telescopic link, makes the telescopic link stability better when flexible, can not appear blocking.

Above-mentioned colliery application braced frame still has certain not enough, supports colliery coal seam through the backup pad, but the backup pad lacks the protection in the use, leads to the backup pad to remove the in-process, because the backup pad lacks the buffering to the extrusion of coal seam, and the protection effect is poor, probably leads to the backup pad to the extrusion force of coal seam too big, leads to the collapse of coal seam, so proposes a colliery thin layer coal mining support frame with protection machanism in order to solve above-mentioned problem.

The supporting frames all utilize the supporting rods to support single points, which may result in limited supporting positions and unstable supporting, meanwhile, the existing supporting frames are generally of fixed structures, which may not easily meet the use requirements of mines with different heights, influence the situation of construction of mines,

disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the coal mine thin layer coal mining support frame with the protection mechanism, which has the advantages of good protection effect and the like, and solves the problem of poor protection effect of the existing coal mine thin layer coal mining support frame.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the coal mine thin layer coal mining support frame with the protection mechanism comprises a box body, wherein a lifting mechanism is arranged in the box body, a top plate is arranged on the lifting mechanism, and a buffer mechanism is arranged on the top plate;

the buffer gear is including being fixed in fixed block and four casings of roof upper surface, the upper surface fixed of fixed block has the rubber block, the lower surface fixed of casing inner chamber has first spring, the upper surface fixed of first spring has the carriage release lever that runs through and extend to the casing top, four the upper surface fixed of carriage release lever has the backup pad, the left and right sides of fixed block all is fixed with two dead levers, the surface of dead lever has cup jointed the second spring, the surface sliding connection of dead lever has the carriage release lever, the upper surface of carriage release lever articulates there is the articulated pole.

Further, the movable rod is T-shaped, and the movable rod is connected to the inside of the shell in a sliding manner.

Further, the upper surface of articulated pole articulates in the lower surface of backup pad, the upper surface of rubber piece is fixed in the lower surface of backup pad.

Further, the opposite sides of the two second springs are respectively fixed on the opposite sides of the two moving blocks, and the opposite sides of the two second springs are respectively fixed on the left side and the right side of the fixed block.

Further, the lower surface of movable block is fixed with T shape piece, four T shape grooves are seted up to the upper surface of roof, T shape piece sliding connection is in the inside in T shape groove.

Further, elevating system is including being fixed in the left motor of box inner chamber, the output shaft of motor is fixed with the bull stick, the external surface of bull stick is fixed with two first bevel gears, the external surface meshing of first bevel gear has the second bevel gear, the last fixed surface of second bevel gear has the threaded rod, two the surface threaded connection of threaded rod has the movable plate, the upper surface of movable plate is fixed with a plurality of connecting rods that run through and extend to the box top, elevating system is still including being fixed in the connecting plate between the box inner chamber left and right sides.

Further, the roof is fixed in the upper surface of a plurality of connecting rods, two commentaries on classics holes have been seted up to the upper surface of connecting plate, the threaded rod passes through the bearing rotation and connects in the inside of changeing the hole.

Further, the left and right sides of movable plate all are fixed with the slider, the spout has all been seted up to the left and right sides of box inner chamber, slider sliding connection is in the inside of spout.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

1. this colliery thin layer coal-winning support frame with protection machanism, buffer gear through setting up, roof drive fixed block and casing remove together, and casing and movable rod cooperation extrude first spring, and the backup pad can drive the movable block through the articulated rod simultaneously and remove and extrude the second spring, cushions roof and backup pad, prevents that the roof from removing too soon and causing the damage to the colliery top.

2. This colliery thin layer coal-winning support frame with protection machanism, through the elevating system who sets up, the motor drives bull stick and two first bevel gears rotation, drives second bevel gear and threaded rod rotation, and the threaded rod rotation drives movable plate and moves, connecting rod and roof and move together, conveniently supports the colliery top.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a buffer mechanism according to the present utility model;

fig. 3 is a schematic structural view of the lifting mechanism of the present utility model.

In the figure: 1 box, 2 elevating system, 201 motor, 202 bull stick, 203 first bevel gear, 204 second bevel gear, 205 threaded rod, 206 movable plate, 207 connecting rod, 208 connecting plate, 3 roof, 4 buffer gear, 401 fixed block, 402 rubber block, 403 casing, 404 first spring, 405 movable rod, 406 backup pad, 407 fixed rod, 408 movable block, 409 second spring, 410 articulated pole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a thin coal mining support frame with a protection mechanism for a coal mine in this embodiment includes a box 1, four universal wheels for driving a braking function are fixed on the lower surface of the box 1, a lifting mechanism 2 is arranged in the box 1 and is used for supporting a roof of the coal mine, a top plate 3 is arranged on the lifting mechanism 2, a buffer mechanism 4 is arranged on the top plate 3 and is used for protecting the roof of the coal mine and preventing the lifting mechanism 2 from damaging the roof.

Referring to fig. 2, in order to improve protection of the roof of the coal mine, the buffer mechanism 4 in this embodiment includes a fixed block 401 fixed on the upper surface of the roof 3 and four housings 403, a rubber block 402 is fixed on the upper surface of the fixed block 401, the rubber block 402 has a damping effect, a first spring 404 is fixed on the lower surface of the inner cavity of the housing 403, a moving rod 405 penetrating and extending above the housing 403 is fixed on the upper surface of the first spring 404, a buffer and reset effect is provided for the moving rod 405 by the first spring 404, a supporting plate 406 is fixed on the upper surface of the four moving rods 405 for supporting the roof of the coal mine, the upper surface of the rubber block 402 is fixed on the lower surface of the supporting plate 406 for damping effect for the supporting plate 406, two fixed rods 407 are fixed on both left and right sides of the fixed block 401, a second spring 409 is sleeved on the outer surface of the fixed rod 407, a moving rod 410 is slidably connected on the outer surface of the fixed rod 407, a hinge rod 410 is hinged on the upper surface of the moving rod 408, the upper surface of the moving rod 408 is hinged on the lower surface of the supporting plate 406 by the second spring 409 for buffering and resetting effect for the moving rod 408, the upper surface of the hinge rod 410 is hinged on the lower surface of the supporting plate 406, and the upper surface of the hinge rod 410 is hinged on the lower surface of the supporting plate 408 by the moving rod 408.

Wherein, movable rod 405 is T shape, and movable rod 405 sliding connection increases the stability when movable rod 405 removes in the inside of casing 403, and the lower surface of movable block 408 is fixed with T shape piece, and four T-shaped grooves are seted up to the upper surface of roof 3, and T shape piece sliding connection increases the stability when movable block 408 removes in the inside in T-shaped groove.

In addition, opposite sides of the two second springs 409 are respectively fixed to opposite sides of the two moving blocks 408, opposite sides of the two second springs 409 are respectively fixed to the left and right sides of the fixed block 401, and the second springs 409 buffer and restore the moving blocks 408.

The buffer mechanism 4 in this embodiment, the roof 3 drives the fixed block 401 and the casing 403 to move together, the casing 403 cooperates with the moving rod 405 to squeeze the first spring 404, and meanwhile, the support plate 406 drives the moving block 408 to move and squeeze the second spring 409 through the hinge rod 410 to buffer the roof 3 and the support plate 406, so as to prevent the roof 3 from moving too fast and damaging the roof of the coal mine.

Referring to fig. 3, for convenience of supporting, the lifting mechanism 2 in this embodiment includes a motor 201 fixed on the left side of the inner cavity of the case 1, a rotating rod 202 fixed on an output shaft of the motor 201, two first bevel gears 203 fixed on an outer surface of the rotating rod 202, a second bevel gear 204 meshed with an outer surface of the first bevel gear 203, a threaded rod 205 fixed on an upper surface of the second bevel gear 204, the upper surface of the threaded rod 205 rotatably connected to the upper surface of the inner cavity of the case 1 through a bearing seat, the rotating rod 202 rotates the two first bevel gears 203 and drives the second bevel gear 204 and the threaded rod 205 to rotate together, a moving plate 206 is screwed on an outer surface of the two threaded rods 205, a plurality of connecting rods 207 penetrating and extending above the case 1 are fixed on an upper surface of the moving plate 206, the top plate 3 is fixed on an upper surface of the plurality of connecting rods 207, and the moving plate 206 drives the top plate 3 through the connecting rods 207, and the lifting mechanism 2 further includes a connecting plate 208 fixed between the left side and the right side of the inner cavity of the case 1.

Wherein, two change holes have been seted up to connecting plate 208's upper surface, and threaded rod 205 passes through the bearing rotation to be connected in the inside of changeing the hole, increases the stability when threaded rod 205 is rotatory, and the left and right sides of movable plate 206 all is fixed with the slider, and the spout has all been seted up to the left and right sides of box 1 inner chamber, and slider sliding connection is in the inside of spout, increases the stability when movable plate 206 removes.

In the lifting mechanism 2 in the embodiment, the motor 201 drives the rotating rod 202 and the two first bevel gears 203 to rotate, drives the second bevel gears 204 and the threaded rods 205 to rotate, and the threaded rods 205 rotate to drive the moving plate 206 to move and the connecting rod 207 and the top plate 3 to move together.

The working principle of the embodiment is as follows:

(1) When backup pad 406 and colliery top butt back, roof 3 continue to remove, and roof 3 drives fixed block 401 and casing 403 and removes together, and when the casing 403 removed, with movable rod 405 cooperation, extrude first spring 404, when fixed block 401 removed simultaneously, backup pad 406 can drive movable block 408 through articulated rod 410 and slide on fixed rod 407 and extrude second spring 409, cushions roof 3 and backup pad 406, prevents that roof 3 from removing too soon and causing the damage to the colliery top.

(2) When the support is needed, the motor 201 is started, the motor 201 drives the rotating rod 202 and the two first bevel gears 203 to rotate, the first bevel gears 203 drive the second bevel gears 204 to rotate together with the threaded rods 205, the two threaded rods 205 rotate simultaneously, the moving plate 206 is driven to move, the moving plate 206 can drive the sliding block to slide in the sliding groove, the stability of the moving plate 206 during moving is improved, and the connecting rod 207 drives the top plate 3 to move together during moving of the moving plate 206.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a colliery thin layer coal mining support frame with protection machanism, includes box (1), its characterized in that: the novel lifting device is characterized in that a lifting mechanism (2) is arranged in the box body (1), a top plate (3) is arranged on the lifting mechanism (2), and a buffer mechanism (4) is arranged on the top plate (3);

the buffer mechanism (4) comprises a fixed block (401) fixed on the upper surface of a top plate (3) and four shells (403), wherein a rubber block (402) is fixed on the upper surface of the fixed block (401), a first spring (404) is fixed on the lower surface of an inner cavity of the shell (403), a moving rod (405) penetrating through and extending to the upper side of the shell (403) is fixed on the upper surface of the first spring (404), supporting plates (406) are fixed on the upper surface of the four moving rods (405), two fixed rods (407) are fixed on the left side and the right side of the fixed block (401), a second spring (409) is sleeved on the outer surface of the fixed rod (407), a moving block (408) is connected on the outer surface of the fixed rod (407) in a sliding mode, and a hinging rod (410) is hinged on the upper surface of the moving block (408).

2. The thin coal seam mining support frame with protection mechanism according to claim 1, wherein: the movable rod (405) is T-shaped, and the movable rod (405) is connected inside the shell (403) in a sliding manner.

3. The thin coal seam mining support frame with protection mechanism according to claim 1, wherein: the upper surface of the hinging rod (410) is hinged to the lower surface of the supporting plate (406), and the upper surface of the rubber block (402) is fixed to the lower surface of the supporting plate (406).

4. The thin coal seam mining support frame with protection mechanism according to claim 1, wherein: the opposite sides of the two second springs (409) are respectively fixed on the opposite sides of the two moving blocks (408), and the opposite sides of the two second springs (409) are respectively fixed on the left side and the right side of the fixed block (401).

5. The thin coal seam mining support frame with protection mechanism according to claim 1, wherein: the lower surface of the moving block (408) is fixedly provided with a T-shaped block, the upper surface of the top plate (3) is provided with four T-shaped grooves, and the T-shaped block is slidably connected to the inside of each T-shaped groove.

6. The thin coal seam mining support frame with protection mechanism according to claim 1, wherein: elevating system (2) is including being fixed in motor (201) of box (1) inner chamber left side, the output shaft of motor (201) is fixed with bull stick (202), the surface mounting of bull stick (202) has two first bevel gears (203), the surface engagement of first bevel gear (203) has second bevel gear (204), the upper surface mounting of second bevel gear (204) has threaded rod (205), two the surface threaded connection of threaded rod (205) has movable plate (206), the upper surface mounting of movable plate (206) has a plurality of connecting rods (207) that run through and extend to box (1) top, elevating system (2) still including connecting plate (208) between the left and right sides of being fixed in box (1) inner chamber.

7. The thin coal seam mining support frame with protection mechanism according to claim 6, wherein: the top plate (3) is fixed on the upper surfaces of the connecting rods (207), two rotating holes are formed in the upper surfaces of the connecting plates (208), and the threaded rods (205) are rotatably connected to the inside of the rotating holes through bearings.

8. The thin coal seam mining support frame with protection mechanism according to claim 6, wherein: the sliding blocks are fixed on the left side and the right side of the moving plate (206), sliding grooves are formed in the left side and the right side of the inner cavity of the box body (1), and the sliding blocks are connected inside the sliding grooves in a sliding mode.