Gob-side entry driving side supporting device with small coal pillars reserved

Abstract

The utility model relates to the field of mine equipment, in particular to a gob-side entry driving side supporting device with a reserved small coal pillar, which comprises a main frame body, an anchor rod body and an adjusting component, the anchor rod body is mounted on the main frame body through the adjusting component, and the adjusting component comprises a first sliding block, a first clamping plate, a second sliding block, a second clamping plate, a locking bolt, a rotating component and a moving component. The first sliding block is slidably installed in the main frame body, the first clamping plate is rotatably installed on one side of the first sliding block, the second sliding block is slidably installed in the main frame body, the second clamping plate is connected with the second sliding block through the rotating component, the rotating component is installed on the second sliding block and controls the second clamping plate to rotate, and the locking bolt is connected with the first clamping plate and the second clamping plate. The anchor rod body is installed between the first clamping plate and the second clamping plate, the moving component drives the first sliding block to move, and the problems that in the prior art, due to the fact that the angle of an anchor rod cannot be flexibly adjusted, the anchor rod is difficult to adapt to actual geological conditions, and insufficient anchoring force is prone to occurring are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine equipment field especially relates to a small coal pillar along gob side support device. BACKGROUND

[0002] When driving the upper return airway along the gob with small coal pillars left in the coal seam, the roadway side needs to be supported. Due to the influence of mining and the soaking effect of water in the goaf, the small coal pillar medium is soft, the shear strength between the coal seam and the roof is significantly reduced, and the small coal pillar is easily extracted under the weight of the small coal pillar and other external factors after the roadway is excavated, which affects the safety in the roadway. At present, the support of the small coal pillar side is mainly through shed support of channel steel, I-beam and other profiled steel, but the existing and roadway have poor integrity, and the connection stability between the profiled steel and the rock wall is poor. The support stability is poor.

[0003] The prior art CN210164488U discloses a small coal pillar along gob side support device, which is composed of support studs, pressure plates, compression nuts, support arms, pads, anchor rods, guide holes, storage slots, hanging claws, push plates, elastic support plates, screw sleeves and main plates. The main plate is an arc-shaped plate structure, the bottom sides of the main plate extend downward in an arc shape to form two support arms, the bottom ends of the support arms are provided with pads, the main plate, the support arms and the pads form a main frame, one end of the pad is bent downward, the hanging claw is arranged at the bottom of the top end of the main frame, the surface of the hanging claw is provided with anti-skid protrusions, the main plate is provided with guide holes, the main plate is provided with a plurality of storage slots around the guide holes at equal angles, the storage slots and the guide holes are connected, the guide holes and the storage slots form a plum blossom-shaped structure, the anchor rods penetrate the guide holes, a plurality of elastic support plates are arranged one by one in the plurality of storage slots, the push plates are arranged on the elastic support plates, and the push plates are pressed on the anchor rods, the plurality of push plates form a cylindrical structure, the surface of the push plate facing the anchor rod is an arc-shaped concave surface and is attached to the anchor rod, the elastic support plate is a "W"-shaped structure, the elastic support plate is a metal plate that is bent three times continuously, and the bending angle position is an arc-shaped transition, the screw sleeve is sleeved on the anchor rod, the inner side wall of the screw sleeve is provided with internal threads, the outer side wall of the screw sleeve is provided with external threads, the internal threads on the inner side wall of the screw sleeve are screwed with the anchor rod, the internal threads and the external threads are not coaxial, the pressure plate is arranged on the outer side wall of the screw sleeve, the pressure plate is provided with a plurality of support studs at equal angles, the support studs are screwed with the pressure plate, one end of the support stud is pressed on the arc-shaped convex surface of the main plate, one end of the compression nut is sleeved on the screw sleeve and the other end is sleeved on the anchor rod, the compression nut is a stepped hole, the diameter of one end of the compression nut is larger than that of the other end, one end of the compression nut is screwed with the external threads on the outer side wall of the screw sleeve, the other end of the compression nut is screwed with the anchor rod, the anchor rod is inserted obliquely and penetrates the profiled steel multiple times, the support of the profiled steel is good in limiting property, and the side support is good in stability.

[0004] The anchor rod angle cannot be flexibly adjusted, it is difficult to adapt to actual geological conditions, and anchor force deficiency is prone to occur. Technical content

[0005] The present utility model discloses a small coal pillar along emptying roadway side support device, which solves the problem of anchor force deficiency due to the fact that the anchor rod angle cannot be flexibly adjusted in the prior art.

[0006] To achieve the above object, the present utility model provides a small coal pillar along emptying roadway side support device, which comprises a main frame body, an anchor rod body and an adjusting assembly, the anchor rod body is installed on the main frame body through the adjusting assembly, the adjusting assembly comprises a first sliding block, a first clamping plate, a second sliding block, a second clamping plate, a locking bolt, a rotating member and a moving member, the first sliding block is slidably connected with the main frame body and located in the main frame body, the first clamping plate is rotatably connected with the first sliding block and located on one side of the first sliding block, the second sliding block is slidably connected with the main frame body and located on one side of the main frame body close to the first sliding block, the second clamping plate is connected with the second sliding block through the rotating member, the rotating member is installed on the second sliding block and controls the rotation of the second clamping plate, the locking bolt connects the first clamping plate and the second clamping plate, the anchor rod body is installed between the first clamping plate and the second clamping plate, and the moving member drives the first sliding block to move.

[0007] The rotating member comprises a control rod and a control piece, the control rod penetrates through the second sliding block and is rotatably connected with the second sliding block and fixedly connected with the second sliding block, and the control piece drives the control rod to rotate.

[0008] The control piece comprises a worm wheel, a worm and an angle knob, the worm wheel is fixedly connected with the control rod and located at one end of the control rod away from the second clamping plate, the worm is rotatably installed on the second sliding block and meshed with the worm wheel, and the angle knob is fixedly connected with the worm and located at one end of the worm.

[0009] The moving member comprises a screw rod and a moving knob, the screw rod is rotatably connected with the main frame body and threadedly connected with the first sliding block, and the moving knob is fixedly connected with the screw rod and located at one end of the screw rod.

[0010] The main frame body has a limiting groove, the limiting groove is located on one side of the main frame body close to the first sliding block, the first sliding block has a protrusion, and the protrusion is matched with the limiting groove.

[0011] The utility model discloses a small coal pillar along emptying roadway side part supporting device, including main frame body, anchor rod body and adjusting assembly, the anchor rod body passes through adjusting assembly and installs on main frame body, adjusting assembly includes first sliding block, first clamping plate, second sliding block, second clamping plate, locking bolt, rotating component and moving component, first sliding block with main frame body sliding connection lies in main frame body, first clamping plate with first sliding block swing joint lies in one side of first sliding block, second sliding block with main frame body sliding connection lies in the one side of main frame body close to first sliding block, second clamping plate passes through rotating component and is connected with second sliding block, rotating component installs on second sliding block, and control second clamping plate rotates, locking bolt connects first clamping plate and second clamping plate, anchor rod body installs between first clamping plate and second clamping plate, moving component drives first sliding block to move, has solved the problem that the anchoring force is insufficient that the anchor rod angle cannot be flexibly adjusted in prior art, is difficult to adapt to actual geological conditions, and is prone to. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows.

[0013] Figure 1 It is the overall structure schematic diagram of the small coal pillar along emptying roadway side part supporting device of the utility model.

[0014] Figure 2 It is the structure schematic diagram of main frame body, first sliding block and second sliding block.

[0015] Figure 3 It is the structure schematic diagram of rotating component.

[0016] Figure 4 It is the structure schematic diagram of moving component.

[0017] In the drawing: 101-main frame body, 102-anchor rod body, 103-first sliding block, 104-first clamping plate, 105-second sliding block, 106-second clamping plate, 107-locking bolt, 108-control rod, 109-worm wheel, 110-worm, 111-angle knob, 112-screw rod, 113-moving knob, 114-limiting groove, 115-protrusion. DETAILED DESCRIPTION

[0018] The embodiments of the utility model will be described in detail below, the examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and can not be understood as the limitation of the utility model.

[0019] The embodiments of the present application are:

[0020] Please refer to Figures 1-4 , Figure 1 is the overall structure schematic diagram of the small coal pillar along empty roadway roof support device, Figure 2 is the structure schematic diagram of the main frame body 101, the first sliding block 103 and the second sliding block 105, Figure 3 is the structure schematic diagram of the rotating member, Figure 4 is the structure schematic diagram of the moving member.

[0021] The small coal pillar along empty roadway roof support device of the utility model, including main frame body 101, anchor rod body 102, first sliding block 103, first clamping plate 104, second sliding block 105, second clamping plate 106, locking bolt 107, control rod 108, worm wheel 109, worm 110, angle knob 111, screw 112, moving knob 113, limit groove 114, protrusion 115, solve the prior art because the anchor rod angle cannot be adjusted flexibly, it is difficult to adapt to actual geological conditions, the problem of easy anchoring force shortage.It can be understood that the foregoing scheme can also be used to improve the adaptability problem.

[0022] In the embodiment, the main frame body 101 and the anchor rod body 102 are prior art, and the specific structure refers to the prior art CN210164488U small coal pillar along empty roadway roof support device, by the adjusting assembly, thereby solve the prior art because the anchor rod angle cannot be adjusted flexibly, it is difficult to adapt to actual geological conditions, the problem of easy anchoring force shortage.

[0023] The first sliding block 103 is in sliding connection with the main frame body 101 and located in the main frame body 101, the first clamping plate 104 is in rotary connection with the first sliding block 103 and located on one side of the first sliding block 103, the second sliding block 105 is in sliding connection with the main frame body 101 and located on one side of the main frame body 101 close to the first sliding block 103, the second clamping plate 106 is connected with the second sliding block 105 through the rotating member, the rotating member is installed on the second sliding block 105 and controls the rotation of the second clamping plate 106, the locking bolt 107 connects the first clamping plate 104 and the second clamping plate 106, the anchor rod body 102 is installed between the first clamping plate 104 and the second clamping plate 106, the moving member drives the first sliding block 103 to move, the middle part of the main frame body 101 is provided with a rectangular through slot, and sliding grooves are formed on both sides of the rectangular through slot, the first sliding block 103 is installed in the main frame body 101 through the sliding grooves, the second sliding block 105 is installed in the main frame body 101 through the sliding grooves, the first clamping plate 104 is an arc-shaped plate and is connected with the first sliding block 103 through a shaft rod and a bearing, so that the first clamping plate 104 can move with the first sliding block 103 and also rotate on the first sliding block 103, the second clamping plate 106 is the same as the first clamping plate 104 and is symmetrically arranged, the second clamping plate 106 moves with the movement of the second sliding block 105, the locking bolt 107 can lock the first clamping plate 104 and the second clamping plate 106 together, the anchor rod body 102 is placed between the first clamping plate 104 and the second clamping plate 106, and then the locking bolt 107 is tightened, so that the first clamping plate 104 and the second clamping plate 106 can clamp and fix the anchor rod body 102, the knob member can control the rotation of the second clamping plate 106, the anchor rod body 102 is adjusted in angle through the rotation of the second clamping plate 106, the moving member can drive the first sliding block 103 to move, the anchor rod body 102 moves in the through slot of the main frame body 101 through the movement of the first sliding block 103, and the anchor rod body 102 can be flexibly adjusted through the adjusting assembly to adapt to different geological conditions, so that the problem that the anchor rod angle cannot be flexibly adjusted in the prior art, it is difficult to adapt to the actual geological conditions and the anchoring force is insufficient is solved.

[0024] Secondly, the control rod 108 penetrates the second slider 105 and is rotationally connected with the second slider 105 and fixedly connected with the second slider 105; the control member drives the control rod 108 to rotate, the control rod 108 penetrates the second slider 105 and is connected with the second slider 105 through a bearing, so that the second clamping plate 106 can rotate on the second slider 105, the control rod 108 is used for driving the control rod 108 to rotate, and the second clamping plate 106 can be driven to rotate through the rotation of the control rod 108.

[0025] Meanwhile, the worm gear 109 is fixedly connected with the control rod 108 and located at one end of the control rod 108 away from the second clamping plate 106; the worm 110 is rotationally installed on the second slider 105 and is in mesh with the worm gear 109; the angle knob 111 is fixedly connected with the worm 110 and located at one end of the worm 110, the worm gear 109 is sleeved at the end of the control rod 108, the worm 110 is installed on the second slider 105 through a bearing support, the angle knob 111 facilitates the rotation of the worm 110, the second clamping plate 106 can be driven to rotate through the rotation of the angle knob 111, and the angle adjustment of the anchor rod body 102 is realized.

[0026] In addition, the screw rod 112 is rotationally connected with the main rack body 101 and is threadedly connected with the first slider 103; the moving knob 113 is fixedly connected with the screw rod 112 and located at one end of the screw rod 112, the screw rod 112 extends into the main rack body 101 and is connected with the main rack body 101 through a bearing, the first slider 103 has a threaded hole, the screw rod 112 penetrates the threaded hole and is threadedly connected with the first slider 103, the moving knob 113 facilitates the rotation of the screw rod 112, the main rack body 101 is provided with a process groove at a position corresponding to the moving knob 113, the moving knob 113 is facilitated to be twisted, the first slider 103 can be driven to move through the twisting of the moving knob 113, and the position adjustment of the anchor rod body 102 is realized.

[0027] Finally, the limiting groove 114 is located on one side of the main rack body 101 close to the first slider 103; the protrusion 115 cooperates with the limiting groove 114, the limiting groove 114 cooperates with the protrusion 115, the limiting of the first slider 103 can be realized, the first slider 103 is prevented from sliding out of the main rack body 101, the limiting of the first slider 103 is realized through the limiting groove 114 and the protrusion 115, so that the first slider 103 can stably move in the main rack body 101.

[0028] In the embodiment, when in use, the anchor rod body 102 is inserted between the first clamping plate 104 and the second clamping plate 106, then the locking bolt 107 is tightened to clamp and fix the anchor rod body 102 by the first clamping plate 104 and the second clamping plate 106 (when the locking bolt 107 is tightened, the second sliding block 105 can move towards the first sliding block 103 because the second sliding block 105 is slidingly connected with the main frame body 101), when the position of the anchor rod body 102 needs to be adjusted, the moving knob 113 is twisted, the first sliding block 103 can drive the anchor rod body 102 to move on the main frame body 101 to adjust the position of the anchor rod body 102, when the angle of the anchor rod body 102 needs to be adjusted, the angle knob 111 is twisted, the second clamping plate 106 can be driven to rotate through the transmission of the worm 110 and the worm wheel 109 to adjust the angle of the anchor rod body 102, the anchor rod body 102 can be flexibly adjusted by twisting the moving knob 113 and the angle knob 111, and the problem that the anchor rod angle cannot be flexibly adjusted in the prior art, the actual geological conditions are difficult to adapt to, and the anchoring force is insufficient is solved.

[0029] The above only discloses one or more preferred embodiments of the present application, and cannot limit the scope of the rights of the present application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A side support device for roadway excavation with small coal pillars, comprising a main frame, characterized in that, It also includes an adjustment assembly and an anchor bolt body, the anchor bolt body being mounted on the main frame via the adjustment assembly; The adjustment assembly includes a first slider, a first clamping plate, a second slider, a second clamping plate, a locking bolt, a rotating component, and a moving component. The first slider is slidably connected to the main frame and located within the main frame. The first clamping plate is rotatably connected to the first slider and located on one side of the first slider. The second slider is slidably connected to the main frame and located on the side of the main frame closer to the first slider. The second clamping plate is connected to the second slider via the rotating component, which is mounted on the second slider and controls the rotation of the second clamping plate. The locking bolt connects the first clamping plate and the second clamping plate. The anchor bolt body is installed between the first clamping plate and the second clamping plate. The moving component drives the first slider to move.

2. The side support device for roadway excavation with a small coal pillar as described in claim 1, characterized in that, The rotating component includes a control rod and a control element. The control rod passes through the second slider and is rotatably connected to the second slider, and is also fixedly connected to the second slider. The control element drives the control rod to rotate.

3. The side support device for roadway excavation with a small coal pillar as described in claim 2, characterized in that, The control component includes a worm gear, a worm, and an angle knob. The worm gear is fixedly connected to the control rod and is located at the end of the control rod away from the second clamping plate. The worm is rotatably mounted on the second slider and meshes with the worm gear. The angle knob is fixedly connected to the worm and is located at one end of the worm.

4. The side support device for roadway excavation with a small coal pillar as described in claim 1, characterized in that, The movable component includes a screw and a movable knob. The screw is rotatably connected to the main frame and threadedly connected to the first slider. The movable knob is fixedly connected to the screw and located at one end of the screw.

5. The side support device for roadway excavation with a small coal pillar as described in claim 1, characterized in that, The main frame has a limiting groove located on the side of the main frame close to the first slider; the first slider has a protrusion that engages with the limiting groove.

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