CN114294038A

CN114294038A - Mining thin coal hydraulic support

Info

Publication number: CN114294038A
Application number: CN202111659952.0A
Authority: CN
Inventors: 高洁; 李正权
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-08

Abstract

The invention relates to the field of hydraulic supports, in particular to a mining thin-layer coal hydraulic support, which comprises a bottom plate, a moving part, an adjusting part, a limiting part and a supporting part, wherein the moving part is arranged on the bottom plate; the movable part can adapt to various uneven mine tunnel floors by the mutual matching of the mounting groove, the damping spring and the T-shaped rod, so that the stability of the bottom plate is ensured, the problem of inclination or rollover of the bottom plate is avoided, and the supporting effect on the top of the mine tunnel is improved; the supporting component can drive the second top plate to move to the horizontal position through the mutual cooperation of the first top plate and the connecting unit and support the top of the mine tunnel through the combined action of the first top plate and the second top plate, so that the supporting area is increased, the supporting effect is improved, the stress on the top of the mine tunnel can be more uniform, the possibility of cracking or collapse of the top of the mine tunnel is reduced, and the safety and the mining efficiency in the mining process of the mining thin-layer coal are improved.

Description

Mining thin coal hydraulic support

Technical Field

The invention relates to the field of hydraulic supports, in particular to a mining thin-layer coal hydraulic support.

Background

The coal industry is a prop industry of national economy in China, the proportion of coal resources accounting for the total energy consumption of China is relatively large, while the coal resources in China are huge but are not uniformly distributed, nearly 20% of coal belongs to thin-layer coal and is influenced by mining space, working conditions and geological conditions, and the mining difficulty of the thin-layer coal is large. In order to improve the mining efficiency of the thin coal and prevent the collapse of the mine hole, a support is required to support the top of the mine hole.

At present, the existing bracket has the following defects in the actual use process: a. in the supporting process, the base is in direct contact with the ground of the mine tunnel, when the ground of the mine tunnel is uneven, the stability of the base is poor, the phenomenon of inclination and even rollover can occur, the supporting effect on the top of the mine tunnel is poor or the supporting function cannot be achieved, and therefore the mining efficiency of the mining thin-layer coal is influenced; b. in the process of supporting the top of the mine hole, the top of the mine hole is uneven, so that the supporting plate cannot be completely attached to the top of the mine hole, the top of the mine hole is uneven in stress, the possibility of cracking and even collapse of the mine hole is increased, and the safety in the process of coal mining is correspondingly reduced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a mining thin-layer coal hydraulic support.

The technical scheme adopted by the invention for solving the technical problems is as follows: a mining thin-layer coal hydraulic support comprises a bottom plate, a moving part, adjusting parts, limiting parts and supporting parts, wherein the moving part is arranged on the lower end face of the bottom plate, the adjusting parts are arranged at the left end and the right end of the upper end face of the bottom plate, the limiting parts are connected onto the adjusting parts, and the supporting parts are arranged in the middle of the upper end face of the bottom plate;

the limiting component comprises a limiting rod, a limiting block, a limiting tooth groove, a rectangular frame body, a rectangular column and limiting teeth, wherein the upper end of the rectangular block is fixedly connected with the rectangular frame body, a rectangular notch is formed in the side wall, close to the vertical plate, of the rectangular frame body, the rectangular column is arranged in the rectangular frame body in a sliding mode, the limiting teeth which are distributed in a linear arrangement mode are arranged on the lower half side wall, close to the vertical plate, of the rectangular column, the limiting rod is fixedly connected to the position, close to the upper end of the side wall, opposite to the vertical plate, of the limiting rod, the limiting block is fixedly connected to one end, far away from the vertical plate, of the limiting rod, the limiting tooth groove which is matched with the limiting teeth is formed in the side wall, close to the rectangular column, the middle of the lower end face of the supporting component is provided with a T-shaped sliding groove, and the upper end of the rectangular column is T-shaped and is arranged in the T-shaped sliding mode;

support component include the pneumatic cylinder, a roof, No. two roofs, the elasticity plywood, the bolted plate, linkage unit and auxiliary unit, wherein the pneumatic cylinder is installed through the pneumatic cylinder base symmetry around the bottom plate up end middle part, a roof of pneumatic cylinder upper end fixedly connected with, No. two roofs are rotated through the round pin axle to No. one roof left and right sides wall, No. two roof up end installation elasticity plywoods, the one end fixedly connected with bolted plate of a roof is kept away from to No. two roof up end, a roof up end is provided with linkage unit, both ends run through the elasticity plywood and link to each other with the bolted plate is fixed about the linkage unit, No. two roof down end symmetry is provided with auxiliary unit, the auxiliary unit lower extreme rotates through the round pin axle and connects on the rectangle post.

Preferably, the moving part include mounting groove, damping spring, T shape pole, mounting bracket, removal wheel, circular recess and fixed unit, wherein the terminal surface has seted up the mounting groove near the corner under the bottom plate, has T shape pole through damping spring sliding connection in the mounting groove, T shape pole lower extreme rotates and is connected with the mounting bracket, rotates on the mounting bracket and installs the removal wheel, circular recess has been seted up at terminal surface middle part under the bottom plate, be provided with fixed unit in the circular recess.

Preferably, the removal take turns the lateral wall on evenly be provided with trapezoidal tooth along its circumference, trapezoidal tooth can improve the land fertility of grabbing of removing the wheel, avoids removing the wheel and in the in-process phenomenon of skidding appears advancing, can make simultaneously remove the wheel and adapt to various unevenness's road surface, has enlarged the application scope who removes the wheel.

Preferably, the fixing unit comprises a pushing cylinder, a pushing plate and mud breaking nails, wherein the pushing cylinder is installed at the top of the circular groove through a cylinder bottom plate, the pushing cylinder is fixedly connected with the pushing plate at the extending end, and the mud breaking nails are uniformly arranged on the lower end face of the pushing plate.

Preferably, the regulating part include the riser, the axis of rotation, the rolling disc, handle and rectangular block, wherein both ends symmetric connection has the riser about the bottom plate up end, the position that is close to the lower extreme between two sets of riser relative lateral walls is provided with the axis of rotation, connect through the bearing between axis of rotation and the riser, bilateral symmetry has seted up the screw thread in the axis of rotation, two sets of screw thread are reverse opposite, equal screw drive has the rectangular block on every group screw thread, terminal surface and bottom plate up end are sliding fit under the rectangular block, the axis of rotation right-hand member extends to riser right side and fixedly connected with rolling disc, be close to the position fixedly connected with handle on outer edge on the rolling disc right side wall.

Preferably, the lower end face of the rectangular block is provided with a ball, and the ball can reduce friction between the rectangular block and the bottom plate, so that the rectangular block can move on the rotating shaft along the thread.

Preferably, No. two roof up end evenly be provided with rubber arch, rubber arch and elasticity plywood can mutually support to make No. two roofs can support unevenness's mine hole top.

Preferably, the connecting unit include cylindrical groove, ejector pin, compression spring and wire rope, wherein the cylindrical groove has evenly been seted up to a roof up end, there is the ejector pin cylindrical groove inside through compression spring sliding connection, the ejector pin is close to the position of lower extreme and has evenly seted up circular through-hole after to in the past in the roof, it is provided with wire rope to slide in the circular through-hole, both ends run through the elasticity plywood respectively and bolt on the bolt plate lateral wall about wire rope.

Preferably, the auxiliary unit include rectangle spout, slide bar, sliding block and anchor strut, wherein the rectangle spout has been seted up to terminal surface longitudinal symmetry under No. two roof, fixed mounting has the slide bar in the rectangle spout, sliding connection has the sliding block on the slide bar, the sliding block lower extreme rotates through the upper end of ball articulated mode and anchor strut and links to each other, the lower extreme of anchor strut rotates through the round pin axle and connects on the rectangular column lateral wall.

The invention has the beneficial effects that:

(1) according to the mining thin-layer coal hydraulic support, the moving part arranged on the bottom plate can adapt to various uneven mine tunnel grounds through the mutual matching among the mounting groove, the damping spring and the T-shaped rod, so that the stability of the bottom plate is ensured, and meanwhile, the fixing unit can limit and fix the bottom plate and the moving wheel, so that the problem of inclination or side turning of the bottom plate is avoided, and the supporting effect on the top of the mine tunnel is improved;

(2) according to the mining thin-layer coal hydraulic support, the supporting part can drive the first top plate to move upwards to support the top of the mine tunnel, the connecting unit can be extruded at the same time, the second top plate is driven to rotate upwards to the horizontal position and support the top of the mine tunnel, the contact area between the first top plate and the second top plate and the top of the mine tunnel is increased, the supporting effect is improved, the elastic layer plates arranged on the second top plate can be matched with the rubber bulges, the purpose of supporting the top of the rugged mine tunnel is achieved, the first top plate and the second top plate can be in complete contact with the top of the mine tunnel, the uniformity of stress on the top of the mine tunnel is guaranteed, the possibility of cracking or collapsing of the top of the mine tunnel is reduced, the safety in the mining process of mining thin-layer coal for mining is improved, and further the mining efficiency is improved;

(3) according to the mining thin-layer coal hydraulic support, the limiting component can limit and fix the rectangular column in the supporting process, so that the stability of the rectangular column is guaranteed, meanwhile, the auxiliary unit can support and reinforce the second top plate, the stability of the mining thin-layer coal hydraulic support in the supporting process is further guaranteed, and the service life of the mining thin-layer coal hydraulic support is prolonged.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of a first perspective structure of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 4 at C in the present invention;

FIG. 6 is an enlarged view of FIG. 4 at D according to the present invention;

FIG. 7 is a sectional view taken along line B-B of FIG. 3 according to the present invention;

FIG. 8 is a schematic view showing the construction of the base plate, the mounting groove, the damper spring, the T-bar, the mounting bracket and the moving wheel in the present invention.

In the figure: 1. a base plate; 2. a moving member; 21. mounting grooves; 22. a damping spring; 23. a T-shaped rod; 24. a mounting frame; 25. a moving wheel; 26. a circular groove; 27. a fixing unit; 271. a push cylinder; 272. a push plate; 273. breaking mud nails; 3. an adjustment member; 31. a vertical plate; 32. a rotating shaft; 33. rotating the disc; 34. a handle; 35. a rectangular block; 4. a limiting component; 41. a limiting rod; 42. a limiting block; 43. a limiting tooth socket; 44. a rectangular frame body; 45. a rectangular column; 46. limiting teeth; 5. a support member; 51. a hydraulic cylinder; 52. a first top plate; 53. a second top plate; 54. an elastic laminate; 55. bolting the plate; 56. a connection unit; 561. a cylindrical groove; 562. a top rod; 563. a compression spring; 564. a wire rope; 57. an auxiliary unit; 571. a rectangular chute; 572. a slide bar; 573. a slider; 574. and a reinforcing rod.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 and 2, the mining thin-layer coal hydraulic support comprises a bottom plate 1, a moving part 2, adjusting parts 3, limiting parts 4 and supporting parts 5, wherein the moving part 2 is arranged on the lower end face of the bottom plate 1, the adjusting parts 3 are arranged at the left end and the right end of the upper end face of the bottom plate 1, the limiting parts 4 are connected onto the adjusting parts 3, and the supporting parts 5 are arranged in the middle of the upper end face of the bottom plate 1;

(4) referring to fig. 1, 2, 4, 7 and 8, the moving member 2 includes a mounting groove 21, a damping spring 22, a T-shaped bar 23, a mounting bracket 24, a moving wheel 25, a circular groove 26 and a fixing unit 27, wherein the lower end surface of the bottom plate 1 near the corner is provided with a mounting groove 21, the mounting groove 21 is connected with a T-shaped rod 23 in a sliding way through a damping spring 22, the lower end of the T-shaped rod 23 is connected with a mounting frame 24 in a rotating way, a moving wheel 25 is arranged on the mounting frame 24 in a rotating way, the outer side wall of the moving wheel 25 is uniformly provided with trapezoidal teeth along the circumferential direction, the trapezoidal teeth can improve the ground gripping force of the moving wheel 25, the slipping phenomenon of the moving wheel 25 in the traveling process is avoided, meanwhile, the movable wheel 25 can adapt to various rugged road surfaces, the application range of the movable wheel 25 is expanded, a circular groove 26 is formed in the middle of the lower end face of the bottom plate 1, and a fixing unit 27 is arranged in the circular groove 26. During specific work, the bottom plate 1 is pushed manually to drive the moving wheel 25 to rotate, so that the mining thin-layer coal hydraulic support is driven to move into a mine hole, the damping spring 22 can play a damping and buffering role on the moving wheel 25, the mining thin-layer coal hydraulic support is enabled to move more stably, after the mining thin-layer coal hydraulic support moves to a proper position, the fixing unit 27 is started, the bottom plate 1 is limited and fixed through the fixing unit 27, the moving wheel 25 stops moving, and the stability of the mining thin-layer coal hydraulic support in the supporting process is improved.

(5) Referring to fig. 7, the fixing unit 27 includes a pushing cylinder 271, a pushing plate 272 and mud breaking nails 273, wherein the pushing cylinder 271 is installed at the top of the circular groove 26 through a bottom plate of the cylinder, the pushing plate 272 is fixedly connected to an extending end of the pushing cylinder 271, and the mud breaking nails 273 are uniformly arranged on the lower end surface of the pushing plate 272. During specific work, after the mining thin-layer coal hydraulic support moves to a proper position, the pushing cylinder 271 is started, the pushing plate 272 is driven to move downwards through the pushing cylinder 271, so that the mud breaking nail 273 is driven to move downwards and is inserted into the ground, the purpose of limiting and fixing the bottom plate 1 and the moving wheel 25 is achieved, meanwhile, the stability of the mining thin-layer coal hydraulic support in the supporting process of the top of the mine hole is improved, and the supporting effect is improved.

(6) Referring to fig. 1, 2 and 7, the adjusting member 3 includes a vertical plate 31, a rotating shaft 32, a rotating disc 33, a handle 34 and a rectangular block 35, wherein, the left and right ends of the upper end surface of the bottom plate 1 are symmetrically connected with vertical plates 31, the position between two groups of vertical plates 31 and the opposite side wall close to the lower end is provided with a rotating shaft 32, the rotating shaft 32 is connected with the vertical plates 31 through a bearing, the rotating shaft 32 is symmetrically provided with threads in the left and right, the two groups of threads are opposite in reverse direction, each group of threads is spirally driven with a rectangular block 35, the lower end surface of the rectangular block 35 is in sliding fit with the upper end surface of the bottom plate 1, the lower end face of the rectangular block 35 is provided with a ball which can reduce the friction between the rectangular block 35 and the bottom plate 1, thereby being favorable to rectangular piece 35 along the screw thread on axis of rotation 32 to move, axis of rotation 32 right-hand member extends to riser 31 right side and fixedly connected with rolling disc 33, and the position fixedly connected with handle 34 that is close to the outer edge on the wall of rolling disc 33 right side. During operation, after roof 52 and No. two roofs 53 supported the mine opening top, rotate handle 34 through the manual work, thereby drive rolling disc 33 and rotate, it rotates to drive axis of rotation 32 through rolling disc 33, the rectangle piece 35 that makes the left and right sides is back of the body motion, thereby it is back of the body motion to drive rectangle framework 44 on the rectangle piece 35 together with rectangle post 45, make the spacing tooth 46 of installing on the lateral wall of rectangle post 45 move to spacing tooth's socket 43 in, reach through spacing tooth's socket 43 and carry out spacing purpose to spacing tooth 46, thereby reach and carry out spacing purpose to rectangle post 45, be favorable to increasing the stability of rectangle post 45 in the support process.

(7) With continued reference to fig. 1, 2 and 7, the position-limiting component 4 includes a position-limiting rod 41, a position-limiting block 42, a position-limiting tooth slot 43, a rectangular frame 44, a rectangular column 45 and a position-limiting tooth 46, wherein rectangle piece 35 upper end fixedly connected with rectangle framework 44, rectangle framework 44 has seted up the rectangle breach on being close to the lateral wall of riser 31, it is provided with rectangle post 45 to slide in the rectangle framework 44, rectangle post 45 is provided with the spacing tooth 46 that is the linear arrangement and distributes on being close to the first half lateral wall of riser 31, the relative lateral wall of riser 31 is close to the position fixedly connected with gag lever post 41 of upper end, the one end fixedly connected with stopper 42 of riser 31 is kept away from to gag lever post 41, stopper 42 is close to and sets up the spacing tooth's socket 43 that matches each other with spacing tooth 46 on the lateral wall of rectangle post 45, T type spout has been seted up at terminal surface middle part under 5, rectangle post 45 upper end is T shape and slides and sets up in T type spout. During specific work, it advances to drive moving part 2 through artifical promotion bottom plate 1, thereby make this mining thin layer coal hydraulic support move to the mine opening in, support the mine opening top through support component 5, through manual operation adjusting part 3 this moment, thereby drive rectangle framework 44 and be back of the body motion together with rectangle post 45, make and install spacing tooth 46 on the lateral wall of rectangle post 45 and move to spacing tooth's socket 43 in, reach through spacing tooth's socket 43 and carry out spacing purpose to spacing tooth 46, thereby reach and carry out spacing purpose to rectangle post 45, be favorable to improving the stability of rectangle post 45 in the support process.

(8) Referring to fig. 1, 2 and 4, the supporting member 5 includes a hydraulic cylinder 51, a first top plate 52, a second top plate 53, an elastic layer plate 54, a bolting plate 55, a connecting unit 56 and an auxiliary unit 57, wherein the hydraulic cylinder 51 is symmetrically installed in the middle of the upper end surface of the bottom plate 1 through a hydraulic cylinder base, the first top plate 52 is fixedly connected to the upper end of the hydraulic cylinder 51, the second top plate 53 is rotatably connected to the left and right side walls of the first top plate 52 through a pin shaft, rubber protrusions are uniformly arranged on the upper end surface of the second top plate 53, the rubber protrusions and the elastic layer plate 54 can be matched with each other, so that the second top plate 53 can support the top of the rugged mine hole, the elastic layer plate 54 is installed on the upper end surface of the second top plate 53, the bolting plate 55 is fixedly connected to one end surface of the second top plate 53 far away from the first top plate 52, the connecting unit 56 is arranged on the upper end surface of the first top plate 52, the left end and the right end of the connecting unit 56 penetrate through the elastic layer plate 54 and are fixedly connected with the bolting plate 55, the lower end face of the second top plate 53 is symmetrically provided with auxiliary units 57, and the lower ends of the auxiliary units 57 are rotatably connected to the rectangular columns 45 through pin shafts. During specific work, start pneumatic cylinder 51, drive a roof 52 upward movement through pneumatic cylinder 51 to drive linkage unit 56 upward movement, after linkage unit 56's upper end contacted the mine cave top, along with a roof 52 continues upward movement, linkage unit 56 can contract downwards, thereby drive No. two roofs 53 and move to the horizontality, realize carrying out the function that supports to the mine cave top through the combined action of No. two roofs 53 and a roof 52.

(9) Referring to fig. 6, the connection unit 56 includes a cylindrical groove 561, a top rod 562, a compression spring 563, and a wire rope 564, wherein the cylindrical groove 561 is uniformly formed on the upper end surface of the first top plate 52, the top rod 562 is slidably connected inside the cylindrical groove 561 through the compression spring 563, a circular through hole is uniformly formed in the position of the top rod 562 near the lower end and the first top plate 52 from front to back, the wire rope 564 is slidably disposed in the circular through hole, and the left end and the right end of the wire rope 564 respectively penetrate through the elastic layer plate 54 and are bolted to the side wall of the bolting plate 55. During operation, drive a roof 52 upward movement through pneumatic cylinder 51, thereby drive ejector pin 562 upward movement, after ejector pin 562 upper end contacts the mine cavity top, along with a roof 52 continuation upward movement, the extrusion force between ejector pin 562 and the mine cavity top can drive compression spring 563 compression, ejector pin 562 can the downstream simultaneously, ejector pin 562 downstream's in-process can drive wire rope 564 (wire rope 564 is the tension state when initial state) shrink downwards, the pulling force that produces through the shrink of wire rope 564 drives bolting plate 55 and No. two roof 53 upwards rotation to the horizontality, realize the function to the mine cavity top sprag through the combined action of a roof 52 and No. two roof 53.

(10) Referring to fig. 7, the auxiliary unit 57 includes a rectangular sliding groove 571, a sliding rod 572, a sliding block 573 and a reinforcing rod 574, wherein the rectangular sliding groove 571 is symmetrically formed in the front and back of the lower end surface of the second top plate 53, the sliding rod 572 is fixedly installed in the rectangular sliding groove 571, the sliding block 573 is slidably connected to the sliding rod 572, the lower end of the sliding block 573 is rotatably connected to the upper end of the reinforcing rod 574 in a ball hinge manner, and the lower end of the reinforcing rod 574 is rotatably connected to the side wall of the rectangular column 45 through a pin. During specific operation, in the process that the first top plate 52 rotates upwards, the first top plate 52 drives the sliding block 573 to slide upwards along the sliding rod 572, and when the first top plate 52 rotates to a horizontal position, the first top plate 52 can be further reinforced through the supporting and fixing effect of the reinforcing rod 574, so that the supporting effect of the first top plate 52 is improved.

(11) The working process of the invention during use is as follows:

(12) the first step is as follows: the bottom plate 1 is pushed manually to drive the moving wheel 25 to rotate, so that the hydraulic support for the thin coal seam for the mine is driven to move into a mine hole, after the hydraulic support for the thin coal seam for the mine moves to a proper position, the pushing cylinder 271 is started, the pushing plate 272 is driven to move downwards by the pushing cylinder 271, so that the mud breaking nail 273 is driven to move downwards and be inserted into the ground, and the purpose of limiting and fixing the bottom plate 1 and the moving wheel 25 is achieved;

(13) the second step is that: the hydraulic cylinder 51 is started, the first top plate 52 is driven to move upwards through the hydraulic cylinder 51, so that the ejector rod 562 is driven to move upwards, after the upper end of the ejector rod 562 contacts the top of the mine hole, the ejector rod 52 continues to move upwards, the compression spring 563 is driven to compress by the extrusion force between the ejector rod 562 and the top of the mine hole, the ejector rod 562 moves downwards, the steel wire rope 564 is driven to contract downwards in the downward movement process of the ejector rod 562 (the steel wire rope 564 is in a tightening state in an initial state), the bolting plate 55 and the second top plate 53 are driven to rotate upwards to a horizontal state through the tensile force generated by contraction of the steel wire rope 564, and the function of supporting the top of the mine hole is achieved through the combined action of the first top plate 52 and the second top plate 53;

(14) after the second step is finished, the handle 34 is manually rotated to drive the rotating disc 33 to rotate, the rotating disc 33 drives the rotating shaft 32 to rotate, the rectangular blocks 35 on the left side and the right side move back to back, the rectangular frame 44 on the rectangular blocks 35 and the rectangular column 45 move back to back, the limiting teeth 46 arranged on the side wall of the rectangular column 45 move into the limiting tooth grooves 43, the purpose of limiting the limiting teeth 46 is achieved through the limiting tooth grooves 43, the purpose of limiting the rectangular column 45 is achieved, and the stability of the rectangular column 45 in the supporting process is improved;

(15) the fourth step: when the hydraulic support for the thin coal mine needs to be retracted, the manual reverse rotation handle 34 drives the rotating disc 33 to reversely rotate, the rotating disc 33 drives the rotating shaft 32 to reversely rotate, the rectangular blocks 35 on the left side and the right side are driven to move in opposite directions, the rectangular frame 44 on the rectangular blocks 35 and the rectangular columns 45 move in opposite directions, the limiting teeth 46 can be separated from the limiting tooth grooves 43 at the moment, the hydraulic cylinder 51 is reset downwards, the ejector rods 562 are driven to reset upwards by the reaction force of the compression springs 563, the steel wire ropes 564 can be restored to the original state at the moment, the first top plate 52 can move downwards to the initial state under the action of self gravity, the pushing cylinder 271 drives the pushing plate 272 to reset upwards, the broken mud nails 273 are separated from the ground, the bottom plate 1 can be manually pushed to drive the movable wheels 25 to rotate, and the hydraulic support for the thin coal mine is pushed out of a mine hole.

(16) The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mining thin layer coal hydraulic support, includes bottom plate (1), moving part (2), adjusting part (3), spacing part (4) and supporting component (5), its characterized in that: the lower end face of the bottom plate (1) is provided with a moving part (2), the left end and the right end of the upper end face of the bottom plate (1) are provided with adjusting parts (3), the adjusting parts (3) are connected with limiting parts (4), and the middle part of the upper end face of the bottom plate (1) is provided with a supporting part (5);

the limiting component (4) comprises a limiting rod (41), a limiting block (42), limiting tooth grooves (43), a rectangular frame body (44), a rectangular column (45) and limiting teeth (46), wherein the upper end of the rectangular block (35) is fixedly connected with the rectangular frame body (44), rectangular notches are formed in the side wall, close to the vertical plate (31), of the rectangular frame body (44), the rectangular column (45) is arranged in the rectangular frame body (44) in a sliding mode, the limiting teeth (46) which are distributed in a linear arrangement mode are arranged on the lower half side wall, close to the vertical plate (31), of the rectangular column (45), the limiting rod (41) is fixedly connected to the position, close to the upper end, of the opposite side wall of the vertical plate (31), the limiting rod (41), one end, far away from the vertical plate (31), of the limiting rod (41) is fixedly connected with the limiting block (42), and the limiting tooth grooves (43) which are matched with the limiting teeth (46) are formed in the side wall, of the limiting block (42), close to the rectangular column (45), the middle part of the lower end face of the supporting component (5) is provided with a T-shaped sliding groove, and the upper end of the rectangular column (45) is T-shaped and is arranged in the T-shaped sliding groove in a sliding manner;

the supporting part (5) comprises a hydraulic cylinder (51), a first top plate (52), a second top plate (53), elastic laminates (54), a bolting plate (55), a connecting unit (56) and an auxiliary unit (57), wherein the hydraulic cylinder (51) is symmetrically arranged in the middle of the upper end face of the bottom plate (1) from front to back through a hydraulic cylinder base, the first top plate (52) is fixedly connected to the upper end of the hydraulic cylinder (51), the second top plate (53) is rotatably connected to the left side wall and the right side wall of the first top plate (52) through pin shafts, the elastic laminates (54) are arranged on the upper end face of the second top plate (53), the bolting plate (55) is fixedly connected to one end of the upper end face of the second top plate (53) far away from the first top plate (52), the connecting unit (56) is arranged on the upper end face of the first top plate (52), and the left end and the right end of the connecting unit (56) penetrate through the elastic laminates (54) and are fixedly connected with the bolting plate (55), the lower end face of the second top plate (53) is symmetrically provided with auxiliary units (57), and the lower ends of the auxiliary units (57) are rotatably connected to the rectangular columns (45) through pin shafts.

2. The mining thin-layer coal hydraulic support according to claim 1, characterized in that: moving part (2) including mounting groove (21), damping spring (22), T shape pole (23), mounting bracket (24), remove wheel (25), circular recess (26) and fixed unit (27), wherein terminal surface has seted up mounting groove (21) near the corner under bottom plate (1), there are T shape pole (23) through damping spring (22) sliding connection in mounting groove (21), T shape pole (23) lower extreme rotates and is connected with mounting bracket (24), it installs to rotate on mounting bracket (24) and removes wheel (25), circular recess (26) have been seted up at terminal surface middle part under bottom plate (1), be provided with fixed unit (27) in circular recess (26).

3. The mining thin-layer coal hydraulic support according to claim 2, characterized in that: trapezoidal teeth are uniformly arranged on the outer side wall of the moving wheel (25) along the circumferential direction of the moving wheel.

4. The mining thin-layer coal hydraulic support according to claim 2, characterized in that: the fixing unit (27) comprises a pushing cylinder (271), a pushing plate (272) and mud breaking nails (273), wherein the pushing cylinder (271) is installed at the top of the circular groove (26) through a cylinder bottom plate, the pushing plate (272) is fixedly connected with the extending end of the pushing cylinder (271), and the mud breaking nails (273) are uniformly arranged on the lower end face of the pushing plate (272).

5. The mining thin-layer coal hydraulic support according to claim 1, characterized in that: regulating part (3) including riser (31), axis of rotation (32), rolling disc (33), handle (34) and rectangular block (35), wherein bottom plate (1) up end left and right ends symmetric connection has riser (31), be close to the position of lower extreme between two sets of riser (31) relative lateral wall and be provided with axis of rotation (32), connect through the bearing between axis of rotation (32) and riser (31), bilateral symmetry has seted up the screw thread on axis of rotation (32), two sets of screw thread are reverse opposite, equal screw drive has rectangular block (35) on every group screw thread, terminal surface and bottom plate (1) up end are sliding fit under rectangular block (35), axis of rotation (32) right-hand member extends to riser (31) right side and fixedly connected with rolling disc (33), be close to outer position fixedly connected with handle (34) on rolling disc (33) right side wall.

6. The mining thin-layer coal hydraulic support according to claim 5, characterized in that: the lower end face of the rectangular block (35) is provided with a ball.

7. The mining thin-layer coal hydraulic support according to claim 1, characterized in that: rubber bulges are uniformly arranged on the upper end surface of the second top plate (53).

8. The mining thin-layer coal hydraulic support according to claim 1, characterized in that: the connecting unit (56) include cylindrical slot (561), ejector pin (562), compression spring (563) and wire rope (564), cylindrical slot (561) have evenly been seted up to one of them roof (52) up end, inside through compression spring (563) sliding connection there is ejector pin (562) in cylindrical slot (561), round through-hole has evenly been seted up in the position that ejector pin (562) are close to the lower extreme and roof (52) in the past to the back, it is provided with wire rope (564) to slide in the round through-hole, both ends are run through elasticity plywood (54) respectively and are bolted on bolting plate (55) lateral wall about wire rope (564).

9. The mining thin-layer coal hydraulic support according to claim 1, characterized in that: the auxiliary unit (57) comprises rectangular sliding grooves (571), sliding rods (572), sliding blocks (573) and reinforcing rods (574), wherein the rectangular sliding grooves (571) are symmetrically formed in the front and back of the lower end face of the second top plate (53), the sliding rods (572) are fixedly installed in the rectangular sliding grooves (571), the sliding rods (573) are connected onto the sliding rods (572) in a sliding mode, the lower ends of the sliding blocks (573) are connected with the upper ends of the reinforcing rods (574) in a ball hinge mode in a rotating mode, and the lower ends of the reinforcing rods (574) are connected onto the side walls of the rectangular columns (45) in a rotating mode through pin shafts.