Coal mine underground hydraulic support structure

Abstract

The utility model discloses a coal mine underground hydraulic support structure, and relates to the technical field of hydraulic supports. The underground coal mine hydraulic support structure comprises a transportation base, hydraulic support equipment is arranged at the top end of the transportation base, two positioning structures are arranged at the bottom of the transportation base, and the two positioning structures are located on the front side and the rear side of the transportation base; according to the underground coal mine hydraulic support structure, the positioning structure is arranged, a built-in motor is used for promoting a follow-up rod at the top end of a follow-up gear through a driving gear to drive an abutting inclined block to relatively slide in a sliding rail, and the abutting inclined block can drive a ground contact plate through an abutting guide wheel rod to gradually support a transportation base away from the ground; according to the structure, the hydraulic support equipment can be fixed to the current position after being displaced, so that the manual carrying process is avoided, the moving process of the structure is time-saving and labor-saving, and the transfer efficiency of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic supports, in particular to a hydraulic support structure in an underground coal mine. Background Art

[0002] Hydraulic support is a kind of equipment used on the coal mining face in coal mines. In underground coal mining operations in coal mines, due to the instability of coal and rock, there are often risks of geological disasters such as collapse and roof subsidence. In order to ensure the safety and stability of the coal mining face and improve the safety and production efficiency of miners, it is very important to use hydraulic supports to support and protect the mine wall, thereby protecting the safety of equipment and personnel, and ensuring the safety of coal mining operations.

[0003] After searching, it is proposed in a hydraulic support platform for coal mine machinery with patent publication number CN220748313U that "when in use, the coal mine machinery equipment is placed on the top seat, the machinery equipment is lifted to the target height by the lifting assembly, the first hydraulic cylinder is turned on to drive the partition to move, the partition drives the connecting rod to move, thereby driving the support plate to move left and right, and at the same time, the second hydraulic cylinder is turned on to drive the support plate to rotate, so as to adjust the support plate to a suitable inclination angle and closely abut against the side wall, and support both sides through the side support assembly to improve the overall support effect, and then the drive motor is turned on to drive the first screw to rotate, and under the cooperation of the first screw and the screw sleeve, the first screw drives the support block to move outward into the support groove, thereby reinforcing the support plate and further improving the stability in use";

[0004] However, the above solution still has certain shortcomings in actual use. The device needs to be moved to a designated location by staff first, but this movement method will cause the device to be transported by multiple staff members, making the movement process of the device time-consuming and labor-intensive, thereby affecting the transportation efficiency of the device. Utility Model Content

[0005] The utility model provides a hydraulic support structure in an underground coal mine to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic support structure in an underground coal mine, comprising a transport base, a hydraulic support device is arranged on the top of the transport base, and two positioning structures are arranged on the bottom of the transport base, and the two positioning structures are located at the front and rear sides of the transport base;

[0007] The positioning structure comprises a driving box, a mounting platform and a slide rail are fixedly mounted on the inner wall of the driving box, a driving gear and a follower gear are rotatably connected to the top of the mounting platform, the driving gear and the follower gear are meshed, a follower rod is fixedly connected to the top of the follower gear, a movable sleeve rod is slidably connected to the other end of the follower rod, a resisting inclined block is arranged at the other end of the movable sleeve rod, and the resisting inclined block overlaps with the inside of the slide rail;

[0008] The inner wall of the driving box is slidably connected with a contact guide wheel rod, the contact guide wheel rod is located below the slide rail, and the bottom end of the contact guide wheel rod extends to the bottom of the driving box and is fixedly connected with a contact plate.

[0009] Furthermore, the hydraulic support equipment includes a hydraulic cylinder, a lifting plate is fixedly mounted on the movable end of the hydraulic cylinder, and a supporting dome is arranged on the top of the lifting plate.

[0010] Furthermore, a built-in motor is arranged on the top of the mounting platform, and an output shaft of the built-in motor is transmission-connected to a left driving gear.

[0011] Furthermore, a slide rod is fixedly connected to the inner wall of the slide rail, a slider is fixedly connected to the back side of the abutting inclined block, and the slider is slidably connected to the slide rod.

[0012] Furthermore, the outer side of the abutment guide wheel rod is movably connected with a return damping spring via a hinged rod, and the other end of the return damping spring overlaps the inner wall of the drive box.

[0013] Compared with the prior art, the utility model provides a hydraulic support structure for coal mines, which has the following beneficial effects:

[0014] The coal mine underground hydraulic support structure is provided with a positioning structure, and uses a built-in motor to drive the follower rod at the top of the follower gear through the driving gear to drive the resistance inclined block to slide relatively inside the slide rail, so that the resistance inclined block can drive the contact plate through the resistance guide wheel rod to gradually lift the transport base off the ground, so that the structure can be fixed at the current position after the hydraulic support equipment is displaced, thereby avoiding the process of manual handling, making the movement process of the structure time-saving and labor-saving, and thus improving the transportation efficiency of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the hydraulic support equipment of the utility model;

[0017] Figure 3 This is a schematic diagram of the positioning structure of the utility model;

[0018] Figure 4This is a schematic diagram of the driving gear structure of the utility model.

[0019] In the figure: 1. transport base; 2. hydraulic support equipment; 201. hydraulic cylinder; 202. lifting plate; 203. supporting dome; 3. positioning structure; 301. driving box; 302. mounting table; 303. driving gear; 304. follower gear; 305. follower rod; 306. movable sleeve rod; 307. slider; 308. abutment bevel block; 309. slide rail; 310. slide rod; 311. abutment guide wheel rod; 312. hinged rod; 313. reset damping spring; 314. touching floor. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 The utility model discloses an underground hydraulic support structure of a coal mine, comprising a transport base 1, a hydraulic support device 2 is arranged on the top of the transport base 1, and two positioning structures 3 are arranged on the bottom of the transport base 1, and the two positioning structures 3 are located at the front and rear sides of the transport base 1.

[0022] The hydraulic support device 2 includes a hydraulic cylinder 201 , a lifting plate 202 is fixedly mounted on the movable end of the hydraulic cylinder 201 , and a supporting dome 203 is arranged on the top of the lifting plate 202 .

[0023] The positioning structure 3 includes a driving box 301, the inner wall of which is fixedly mounted with a mounting platform 302 and a slide rail 309, the top of the mounting platform 302 is rotatably connected with a driving gear 303 and a follower gear 304, the top of the mounting platform 302 is provided with a built-in motor, the output shaft of the built-in motor is transmission-connected with the left driving gear 303, the driving gear 303 and the follower gear 304 are meshed, the top of the follower gear 304 is fixedly connected with a follower rod 305, the other end of the follower rod 305 is slidably connected with a movable sleeve rod 306, the other end of the movable sleeve rod 306 is provided with a resisting inclined block 308, and the resisting inclined block 308 is overlapped with the inside of the slide rail 309.

[0024] The inner wall of the driving box 301 is slidably connected with a contact guide wheel rod 311, and the contact guide wheel rod 311 is located below the slide rail 309. The bottom end of the contact guide wheel rod 311 extends to the bottom of the driving box 301 and is fixedly connected with a contact plate 314.

[0025] By setting up the positioning structure 3, the built-in motor is used to drive the follower rod 305 at the top of the follower gear 304 through the driving gear 303 to drive the abutment bevel block 308 to slide relatively inside the slide rail 309, so that the abutment bevel block 308 can drive the contact plate 314 to gradually lift the transport base 1 off the ground through the abutment guide wheel rod 311, so that the structure can be fixed at the current position after the hydraulic support equipment 2 is displaced, thereby avoiding the process of manual handling, making the movement process of the structure time-saving and labor-saving, thereby improving the transportation efficiency of the structure.

[0026] Specifically, a slide bar 310 is fixedly connected to the inner wall of the slide rail 309 , a slider 307 is fixedly connected to the back side of the abutting inclined block 308 , and the slider 307 is slidably connected to the slide bar 310 .

[0027] In this embodiment, the slider 307 is used to slide along the surface of the slide bar 310 along with the oblique abutment block 308 , thereby improving the movement stability of the oblique abutment block 308 .

[0028] Specifically, the outer side of the abutting guide wheel rod 311 is movably connected with a return damping spring 313 via a hinge rod 312 , and the other end of the return damping spring 313 overlaps with the inner wall of the driving box 301 .

[0029] In this embodiment, the automatic rebound resilience of the reset damping spring 313 is utilized so that when the overlapping state between the contact guide wheel rod 311 and the contact bevel block 308 is released, the reset damping spring 313 can drive the contact floor 314 to automatically rise to the initial position, so that the contact guide wheel rod 311 can drive the contact floor 314 to automatically recover, prompting the transport base 1 to be converted from the positioning mode to the movable mode at this time.

[0030] When in use, the structure is first moved to the specified position through the transport base 1, and then the positioning structure 3 is started, so that the built-in motor inside the drive box 301 drives the left driving gear 303 to transmit, and the rotation of the left driving gear 303 will drive the right driving gear 303 to rotate, so that the two driving gears 303 can be meshed and transmitted. At the same time, the rotation of the driving gear 303 will drive the follower gear 304 to mesh and transmit, and the rotation of the follower gear 304 will drive the follower rod 305 to move in an arc. Since the follower rod 305 and the movable sleeve rod 306 are slidably connected, and the other end of the movable sleeve rod 306 is hinged to the sliding rod 310, the rotation of the follower rod 305 will drive the interference bevel block 308 to slide along the surface of the sliding rod 310 through the movable sleeve rod 306 and the sliding block 307, and the movement directions of the two interference bevel blocks 308 are opposite;

[0031] Therefore, in the process of the mutual contact of the oblique blocks 308, the bottom end of the oblique blocks 308 will gradually contact the top end of the guide wheel rod 311, so that the top end of the guide wheel rod 311 will be pressed down along the slope direction of the oblique blocks 308, so that the descent of the two oblique blocks 308 will drive the contact plate 314 to descend synchronously, so that the contact plate 314 gradually lifts the transport base 1 off the ground, so that the transport base 1 is converted from the movable mode to the positioning mode, so that the transport base 1 is fixed at the current position;

[0032] Then the hydraulic cylinder 201 is started, and the movable end of the hydraulic cylinder 201 drives the supporting dome 203 through the lifting plate 202 to gradually contact with the top of the underground tunnel.

[0033] To sum up, the hydraulic support structure in the coal mine underground, by setting a positioning structure 3, uses a built-in motor to drive the follower rod 305 at the top of the follower gear 304 through the driving gear 303 to drive the abutment bevel block 308 to slide relatively inside the slide rail 309, so that the abutment bevel block 308 can drive the contact plate 314 through the abutment guide wheel rod 311 to gradually lift the transport base 1 off the ground, so that the structure can be fixed at the current position after the hydraulic support equipment 2 is displaced, thereby avoiding the process of manual handling, making the movement process of the structure time-saving and labor-saving, thereby improving the transportation efficiency of the structure.

[0034] Although 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 that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic support structure for an underground coal mine, comprising a transport base (1), characterized in that: A hydraulic support device (2) is arranged at the top of the transport base (1), and two positioning structures (3) are arranged at the bottom of the transport base (1), wherein the two positioning structures (3) are located at the front and rear sides of the transport base (1); The positioning structure (3) comprises a driving box (301), the inner wall of which is fixedly mounted a mounting platform (302) and a slide rail (309), the top end of the mounting platform (302) being rotatably connected to a driving gear (303) and a follower gear (304), the driving gear (303) and the follower gear (304) being meshed with each other, the top end of the follower gear (304) being fixedly connected to a follower rod (305), the other end of the follower rod (305) being slidably connected to a movable sleeve rod (306), the other end of the movable sleeve rod (306) being provided with a resisting inclined block (308), the resisting inclined block (308) being overlapped with the inside of the slide rail (309); The inner wall of the driving box (301) is slidably connected to a contact guide wheel rod (311), the contact guide wheel rod (311) is located below the slide rail (309), and the bottom end of the contact guide wheel rod (311) extends to the bottom of the driving box (301) and is fixedly connected to a contact plate (314).

2. The hydraulic support structure for underground coal mine according to claim 1, characterized in that: The hydraulic support device (2) comprises a hydraulic cylinder (201), a lifting plate (202) being fixedly mounted on the movable end of the hydraulic cylinder (201), and a supporting dome (203) being arranged on the top end of the lifting plate (202).

3. The hydraulic support structure for underground coal mine according to claim 1, characterized in that: A built-in motor is disposed at the top of the mounting platform (302), and an output shaft of the built-in motor is transmission-connected to a left-side driving gear (303).

4. The hydraulic support structure for underground coal mine according to claim 1, characterized in that: The inner wall of the slide rail (309) is fixedly connected to a slide bar (310), the back side of the abutting inclined block (308) is fixedly connected to a slide block (307), and the slide block (307) is slidably connected to the slide bar (310).

5. The hydraulic support structure for underground coal mine according to claim 1, characterized in that: The outer side of the abutting guide wheel rod (311) is movably connected to a return damping spring (313) via a hinge rod (312), and the other end of the return damping spring (313) overlaps the inner wall of the driving box (301).

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