Coal mine underground moving mechanism and jacking hydraulic support

Abstract

The invention discloses a coal mine underground moving mechanism and a jacking hydraulic support, and relates to the technical field of jacking hydraulic supports, the coal mine underground moving mechanism comprises a supporting unit, and the supporting unit comprises multiple sets of bases, footstands, hinge bases and propelling pieces; the planing and moving unit comprises a plate groove, a hinge end, a driving part and a planing and moving arm; the driving piece can drive the planing and moving rod to turn over by an angle. According to the device, through the design of the planing and moving arm and the driving part, the hydraulic support is jacked up through the angle turnover mechanism and then placed gently, the complex bottom plate condition gradients such as coal slime deposition and anchor cable protrusion are effectively overcome, and stable moving and transportation in a rugged roadway are achieved. In addition, a double-power cooperation mechanism is formed through a hinge seat and a moving seat, the overall overturning angle of the plate groove is controlled to be adjustable through a propelling part, the hook foot embedding depth of the planing and moving arm is accurately adjusted through a driving part, and moving track deviation is avoided.

Description

Technical Field

[0001] The present invention relates to the field of supporting hydraulic supports, and in particular to a moving mechanism and a supporting hydraulic support underground in a coal mine. Background Art

[0002] When the supporting hydraulic support in the fully mechanized coal mining face underground in a coal mine needs to be withdrawn after mining, there is a distance of more than ten meters between the time when the hydraulic support is pulled out and the time when it is lifted by a single rail hoist. The single rail hoist cannot reach it, and the transport vehicle cannot get closer due to insufficient space. The prior art usually uses a winch steel wire rope to forcibly drag it, which not only has low efficiency, but also is time-consuming and laborious. There is also a risk of the steel wire rope breaking and injuring people during long-distance dragging, and the safety of the operator cannot be guaranteed. If casters are installed, they cannot adapt to the rugged sections underground, but instead increase the risk of moving.

[0003] During the production process of the fully mechanized coal mining face underground in a coal mine, the removal operation of the hydraulic support is a key link in equipment recovery. Limited by the underground roadway space layout, when the working face mining is completed, the hydraulic support needs to be transferred from the original support position to the single rail hoist lifting point through a 10-15-meter transition section.

[0004] In the existing transportation scheme, the single rail hoist track system cannot directly cover the support removal area due to the limitation of the lifting radius, and the explosion-proof trackless transport vehicle cannot approach the operation due to insufficient roadway section size. The equipment transfer in this transition section has become a technical bottleneck restricting the rapid recovery of fully mechanized mining equipment. In addition, the traditional process uses a JH-14 type pillar pulling winch and a Φ24mm steel wire rope for forced dragging, and there are also significant technical defects: First, the winch traction requires 5-6 people to cooperate in the operation, and the average moving time for a single support reaches 45 minutes, with low operation efficiency; second, the steel wire rope is prone to stress concentration during long-distance dragging and is easy to break. Although some mines have tried to install universal casters to assist in moving, it is found in actual application that the general-purpose casters are difficult to adapt to the complex underground composite floor conditions (including complex working conditions such as coal slime deposition and anchor cable protrusion), resulting in an increased risk of the equipment tipping over. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is: in the current stage, there are problems in moving or removing the underground working face in a coal mine, making it difficult to move.

[0006] The above technical problem is solved by the following technical solutions: The present invention provides a moving mechanism underground in a coal mine, a supporting unit, including multiple groups of bases, foot seats fixedly arranged at the ends of the bases, hinge seats arranged on the side walls of the bases, and a propulsion member hinged to one side of the foot seats;

[0007] A planing and moving unit, including a plate groove, a hinge end arranged at the end of the plate groove, a driving member arranged inside the plate groove, and a planing and moving arm arranged at the end of the driving member;

[0008] The driving member can drive the planing and moving rod to perform angular flipping.

[0009] In a preferred embodiment of the underground coal mine moving mechanism of the present invention: a moving seat is further provided on the end surface of the plate groove;

[0010] One end of the pushing member is hinged to the moving seat, and the other end of the pushing member is hinged to the foot seat;

[0011] The pushing member controls the plate groove to flip along the hinge seat.

[0012] In a preferred embodiment of the underground coal mine moving mechanism of the present invention: the plate groove includes first positioning holes penetrating through both sides of its end, and second positioning holes penetrating through both sides of the other end;

[0013] The horizontal position of the first positioning hole is higher than the horizontal position of the second positioning hole.

[0014] In a preferred embodiment of the underground coal mine moving mechanism of the present invention: the plate groove further includes a slotted opening penetrating through the end surface of the plate groove.

[0015] In a preferred embodiment of the underground coal mine moving mechanism of the present invention: a set of connecting arms protrude in the middle of the planing and moving arm.

[0016] In a preferred embodiment of the underground coal mine moving mechanism of the present invention: the planing and moving arm includes a first hinge hole provided at its end, a second hinge hole provided at the bottom of the first hinge hole, and a hook foot protruding from the end of the planing and moving arm.

[0017] In a preferred embodiment of the underground coal mine moving mechanism of the present invention: the driving member includes a first hinge seat hinged to the first positioning hole, and a second hinge seat hinged to the first hinge hole.

[0018] The present invention also provides a supporting hydraulic support, including the underground coal mine moving mechanism as described above, and further including,

[0019] A platform unit, including a tabletop, a plurality of positioning columns fixedly arranged on the tabletop, and a traction assembly arranged at the other end of the tabletop.

[0020] In a preferred embodiment of the supporting hydraulic support of the present invention: the traction assembly includes a cushion block, a guide rail provided at the end of the cushion block, a traction wheel provided on the guide rail, and a traction rod provided on one side of the traction wheel.

[0021] In a preferred embodiment of the hydraulic support of the present invention: the towing bar further pushes the towing wheel to move on the guide rail.

[0022] The beneficial effects of the present invention are as follows: Through the design of the planing and moving arm and the driving member, after the hydraulic support is lifted by the angle flipping mechanism and gently placed, it effectively overcomes complex floor conditions such as coal slime accumulation and cable protrusions, and realizes stable transportation in rough roadways. In addition, through the hinge seat and the moving seat, a dual-power cooperation mechanism is formed. The overall flipping angle of the control plate groove of the propulsion member is adjustable, and the driving member precisely adjusts the embedding depth of the hook of the planing and moving arm to avoid deviation of the transportation trajectory. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention and do not limit the present invention. Among them:

[0024] Figure 1 Shows the overall structural schematic diagram of the underground coal mine moving mechanism of the present invention;

[0025] Figure 2 Shows another structural schematic diagram of the underground coal mine moving mechanism of the present invention;

[0026] Figure 3 Shows the front structural schematic diagram of the underground coal mine moving mechanism of the present invention;

[0027] Figure 4 Shows the partial rear structural schematic diagram of the capture component of the present invention;

[0028] Figure 5 Shows Figure 4 The enlarged schematic diagram of the traction component structure in A. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the specific embodiments and the drawings.

[0030] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention, but these terms may change according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but based on the meanings of the terms and the overall description of the present invention.

[0031] Refer to Figures 1 to 3, this embodiment provides a moving mechanism for underground coal mines, including a support unit 1, which includes multiple groups of bases 11, footrests 12 fixedly arranged at the ends of the bases 11, hinge seats 13 arranged on the side walls of the bases 11, and a propulsion member 14 hinged to one side of the footrest 12;

[0032] A planing and moving unit 2, which includes a plate groove 21, a hinge end 22 arranged at the end of the plate groove 21, a driving member 23 arranged inside the plate groove 21, and a planing and moving arm 24 arranged at the end of the driving member 23;

[0033] The driving member 23 can drive the planing rod to perform angular flipping.

[0034] In this embodiment, the support unit 1 is the force-bearing component of this mechanism, ensuring that this mechanism can be moved smoothly. Among them, the base 11 can be fixedly connected to one side of the underground coal mine workbench by welding, and the base 11 can be provided with two groups at one end or both ends according to the use requirements. The two bases 11 are welded to both sides of the underground coal mine workbench. The footrest 12 that is also fixedly connected and inclined outward is provided on the end face of the base 11, and a connection hole is penetrated through the footrest 12 to facilitate the connection of the propulsion member 14.

[0035] Among them, a hinge seat 13 is fixedly connected to the side wall of the base 11, and the hinge seat 13 provides a connection port for the hinge of the planing and moving unit 2.

[0036] Preferably, the propulsion member 14 can drive the planing and moving unit 2 hinged to one side of the base 11 to perform an overall flipping motion, and the propulsion member 14 can be a hydraulic push rod or a cylinder or other forms of ejecting devices.

[0037] Specifically, the planing and moving unit 2 is hinged to the hinge seat 13 on the side wall of the base 11 through the hinge end 22. A group of planing and moving units 2 are arranged on one side of the base 11. The rear end of the hinge end 22 protrudes with a plate groove 21, and the inside of the plate groove 21 is hollow and can be used to install the driving member 23 and the planing and moving arm 24.

[0038] The driving member 23, like the propulsion member 14, can drive the planing and moving arm 24 and the entire planing and moving unit 2 to rotate around a specified hinge axis through an ejecting motion. During this process, the propulsion member 14 pushes the planing and moving unit 2 to rotate around the hinge seat 13 on the side of the base 11, thereby realizing the angular change of the entire planing and moving unit 2. In addition, one end of the planing and moving arm 24 is hinged to the output shaft of the driving member 23 and is also hinged to the inside of the plate groove 21 to ensure that the driving member 23 drives the planing and moving arm 24 to perform flipping through an ejecting motion.

[0039] When the driving member 23 pushes out the output shaft, the flip angle of the planer arm 24 becomes larger, and one side of the planer arm 24 will contact the ground, lifting one side of the entire underground coal mine workbench. At this time, the driving member 23 continues to push out, and then the planer arm 24 continues to flip, so that after one side of the underground coal mine workbench is pushed up, it hits the ground, allowing the entire underground coal mine workbench to move forward a distance. In addition, the propulsion member 14 will also push out the output shaft, flipping the entire planer unit 2 toward the ground, and then coordinating with the driving member 23.

[0040] When the driving member 23 retracts, the propulsion member 14 also retracts at this time. The propulsion member 14 will pull up the entire planing arm 24 so that it does not contact the ground, thereby ensuring that during the retraction process of the planing arm 24, it does not contact the ground and cannot allow the underground coal mine workbench to retract, thereby forming a complete planing displacement process. Repeating the above steps can realize the movement of the underground coal mine workbench.

[0041] During the process of the planer arm 24 lifting the underground coal mine workbench to move, the planer arm 24 contacts the ground to lift the device up and then lowers it, regardless of the terrain, ensuring that the underground coal mine workbench can move in complex terrain conditions such as composite bottom plate conditions including coal slime accumulation, anchor cable protrusions, etc.

[0042] In summary, through the design of the planing arm 24 and the driving member 23, the angle flipping mechanism is used to lift the hydraulic support and then place it smoothly, effectively overcoming the complex bottom slope conditions such as coal sludge accumulation and anchor cable protrusion, and realizing stable transportation in rugged tunnels. In addition, a dual-power coordination mechanism is formed by the articulated seat 13 and the moving seat 211, the overall flipping angle of the pusher control plate slot 21 is adjustable, and the driving member 23 accurately adjusts the embedding depth of the hook 243 of the planing arm 24 to avoid deviation in the transportation trajectory.

[0043] Reference Figure 1 and Figure 2 In some embodiments, a movable seat 211 is further provided on the end surface of the plate slot 21;

[0044] One end of the propulsion member 14 is hinged to the moving seat 211, and the other end of the propulsion member 14 is hinged to the foot seat 12;

[0045] The pushing member 14 controls the plate slot 21 to flip along the hinge seat 13 .

[0046] In this embodiment, the moving seat 211 is installed on the end face of the plate groove 21, and the output shaft of the propulsion member 14 is hinged on the moving seat 211. Therefore, by changing the position of the moving seat 211 on the plate groove 21, the propulsion member 14 can drive the overall flipping ability of the planing unit 2 to be changed, and then the torque that the driving member 23 needs to bear can be adjusted to ensure that the driving member 23 will not be damaged.

[0047] Reference Figures 1 to 3, as an alternative embodiment, the plate groove 21 includes first positioning holes 212 penetrating through both sides of its end, and second positioning holes 213 penetrating through both sides of the other end;

[0048] The horizontal position of the first positioning holes 212 is higher than that of the second positioning holes 213.

[0049] In an embodiment provided by the present application, the plate groove 21 further includes a slot 214 penetrating through the end face of the plate groove 21.

[0050] In an embodiment provided by the present application, a set of connecting arms 31 protrude in the middle of the moving arm 24.

[0051] In an embodiment provided by the present application, the moving arm 24 includes a first hinge hole 241 provided at its end, a second hinge hole 242 provided at the bottom of the first hinge hole 241, and a hook 243 protruding from the end of the moving arm 24.

[0052] In an embodiment provided by the present application, the driving member 23 includes a first hinge seat 231 hinged to the first positioning holes 212, and a second hinge seat 232 hinged to the first hinge hole 241.

[0053] In this embodiment, the first positioning holes 212 and the second positioning holes 213 penetrate through the side wall of the plate groove 21. The first positioning holes 212 are used to hinge the first hinge seat 231 of the driving member 23, and the position of the first positioning holes 212 is at the middle position of the plate groove 21, ensuring that one end of the driving member 23 is at the middle position, providing sufficient space for the driving member 23 to flip. In addition, the other end of the driving member 23 is hinged in the first hinge hole 241 at the port position of the moving arm 24. A second hinge hole 242 also penetrates through the bottom position of the first hinge hole 241 of the moving arm 24, and the second hinge hole 242 is hinged to the second positioning holes 213 on the plate groove 21.

[0054] Specifically, the horizontal position of the first positioning holes 212 is higher than that of the second positioning holes 213, so that when the driving member 23 is placed horizontally, the moving arm 24 will be in an inclined state, which is convenient for better moving.

[0055] Under the working state of the underground coal mine workbench, when the pushing member 14 is not working, the moving unit 2 is lifted without contacting the ground, and the underground coal mine workbench is closely contacted with the ground.

[0056] When it is necessary to withdraw the underground coal mine workbench, the output shafts of the pushing member 14 and the driving member 23 can be manually driven to eject. First, the output shaft ejected by the pushing member 14 will rotate the entire moving unit 2 around the hinge seat 13 towards the ground direction. At the same time, the moving arm 24 will also be driven by the driving member 23 to flip.

[0057] When one side of the planer arm 24 contacts the ground, one side of the entire coal mine underground workbench will be lifted up, and at this time the driving member 23 will continue to be pushed out, and then the planer arm 24 will continue to flip over, so that after one side of the coal mine underground workbench is lifted up, the planer arm 24 flips over to allow the entire coal mine underground workbench to move forward a distance.

[0058] When the driving member 23 retracts, the pushing member 14 also retracts. The pushing member 14 will pull up the entire planing arm 24 so that it does not contact the ground, thereby ensuring that during the retraction of the planing arm 24, it does not contact the ground and cannot allow the underground coal mine workbench to retract, thereby forming a complete planing displacement process. Repeating the above steps can realize the movement of the underground coal mine workbench.

[0059] During the process of the planer arm 24 lifting the underground coal mine workbench to move, the planer arm 24 contacts the ground to lift the device up and then lowers it, regardless of the terrain, ensuring that the underground coal mine workbench can move in complex terrain conditions such as composite bottom plate conditions including coal slime accumulation, anchor cable protrusions, etc.

[0060] Reference Figures 1 to 5 In one embodiment provided in the present application, the platform unit 4 includes a table top 41 , a plurality of positioning pillars 42 fixedly disposed on the table top 41 , and a traction assembly 43 disposed at the other end of the table top 41 .

[0061] In one embodiment provided in the present application, the traction assembly 43 includes a pad 431 , a guide rail 432 disposed at an end of the pad 431 , a traction wheel 433 disposed on the guide rail 432 , and a traction rod 434 disposed on one side of the traction wheel 433 .

[0062] In one embodiment provided in the present application, the traction rod 434 further pushes the traction wheel 433 to move on the guide rail 432 .

[0063] In this embodiment, the table 41 is mainly used as a basic platform for carrying other parts of the device. Two side seats for fixing the traction device and the track are installed on the device base, and hinged ear seats and cylinder ear plates for connecting to the self-moving device are attached. Other accessories of the entire device such as the control device are also on the base. The positioning pillar 42 is located at the rear of the device and consists of 4 hydraulic cylinder jacks. When working, the cylinder extends upward to support the top of the channel to fix the entire device in place, which plays a positioning role for the device.

[0064] Preferably, the traction assembly 43 is located in the middle of the device, and is composed of components such as a traction rod 434, a traction wheel 433 and a guide rail 432. During operation, the traction rod 434 is continuously extended to push the traction wheel 433 to move forward, thereby pushing the traction chain connected to the side of the traction wheel 433 to tighten, dragging the equipment to be withdrawn forward.

[0065] In summary, the traction assembly 43 integrates the traction wheel 433 and the guide rail 432, and realizes single-time transportation through the continuous hydraulic propulsion of the traction rod 434, reducing the average transportation time per single frame.

[0066] Finally, it should be noted that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A coal mine underground moving mechanism, characterized in that: including, a support unit (1), comprising a plurality of groups of bases (11), pedestals (12) fixedly arranged at the ends of the bases (11), hinge seats (13) arranged on the side walls of the bases (11), and a pusher (14) hinged to one side of the pedestals (12); a planing and moving unit (2), comprising a plate groove (21), a hinge end (22) arranged at the end of the plate groove (21), a driving member (23) arranged inside the plate groove (21), and a planing and moving arm (24) arranged at the end of the driving member (23); the driving member (23) can drive the planing and moving rod to perform angular flipping.

2. The underground coal mine moving mechanism according to claim 1, characterized in that: a moving seat (211) is further arranged on the end face of the plate groove (21); one end of the pusher (14) is hinged to the moving seat (211), and the other end of the pusher (14) is hinged to the pedestal (12); the pusher (14) controls the plate groove (21) to flip along the hinge seat (13).

3. The underground coal mine moving mechanism according to claim 2, characterized in that: the plate groove (21) includes first positioning holes (212) penetrating through both sides of its end, and second positioning holes (213) penetrating through both sides of the other end; the horizontal position of the first positioning holes (212) is higher than the horizontal position of the second positioning holes (213).

4. The underground coal mine moving mechanism according to claim 3, characterized in that: the plate groove (21) further includes a slot (214) penetrating through the end face of the plate groove (21).

5. The underground coal mine moving mechanism according to claim 4, characterized in that: a connecting arm (31) is convexly arranged in the middle of the planing and moving arm (24).

6. The underground coal mine moving mechanism according to claim 5, characterized in that: the planing and moving arm (24) includes a first hinge hole (241) arranged at its end, a second hinge hole (242) arranged at the bottom of the first hinge hole (241), and a hook foot (243) convexly arranged at the end of the planing and moving arm (24).

7. The underground coal mine moving mechanism according to claim 6, characterized in that: the driving member (23) includes a first hinge seat (231) hinged to the first positioning holes (212), and a second hinge seat (232) hinged to the first hinge holes (241).

8. A roof-bracing hydraulic support, characterized in that: including the underground coal mine moving mechanism according to any one of claims 1 to 7, further comprising, a platform unit (4), comprising a table top (41), a plurality of positioning columns (42) fixedly arranged on the table top (41), and a traction assembly (43) arranged at the other end of the table top (41).

9. The roof support according to claim 8, characterized in that: the traction assembly (43) includes a cushion block (431), a guide rail (432) arranged at the end of the cushion block (431), a traction wheel (433) arranged on the guide rail (432), and a traction rod (434) arranged on one side of the traction wheel (433).

10. The hydraulic support for propping according to claim 9, characterized in that: The towing bar (434) further pushes the towing wheel (433) to move on the guide rail (432).

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