Anchor cable withdrawing device structure for supporting under mine

Abstract

The utility model discloses an anchor cable withdrawing device structure for supporting under a mine, and particularly relates to the field of anchor cable withdrawing devices, which comprises a fixing box, a first limiting chute is arranged on one side of the fixing box, a hydraulic push rod is fixedly connected to one end of the fixing box, and a fixing ring is arranged on one side, close to the first limiting chute, of the fixing box. One side of the fixing ring is fixedly connected with a first limiting sliding block, and a through hole is formed in the middle of the fixing ring. Firstly, the fixing ring is arranged in the middle of the anchor cable in a sleeved mode, the anchor cable penetrates through the middle of the through hole, at the moment, the spring pushes the limiting block, the extrusion plate can preliminarily clamp the anchor cable, the anti-skid groove of the extrusion plate is attached to the anchor cable, and when the fixing ring is controlled to pull the anchor cable, the anchor cable drives the extrusion plate to move towards the interior of the through hole; the anchor cable can be automatically clamped and fixed, the higher the pulling strength is, the higher the clamping force is, fixing and using are convenient, the loosening situation cannot occur, and the anchor withdrawing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor cable withdrawers, and more specifically to an anchor cable withdrawer structure for underground mine support. Background Art

[0002] Mining anchor cable is an anchoring system composed of anchor, tray, steel strand, anchoring agent, metal mesh, steel belt and other accessories. It uses mechanical tensioning to anchor the rock stratum and apply main force to the surrounding rock of the tunnel. The anchor withdrawer is a special tensioning machine used for withdrawing anchor cables in coal mines. It is mainly used for stress release of coal mine tunnel roof and recovery of anchors.

[0003] Most of the anchor removers on the current market are of integrated type. The anchor remover and anchor removal tensioning pump need to be purchased as a whole, which not only increases the production cost of the mine, but also is inconvenient to carry. At the same time, when the exposed length of the anchor cable is too short, the anchor cable cannot be tightened, resulting in the tensioning pump being unable to apply force to the anchor cable.

[0004] The Chinese patent with patent application number CN202123283148.5 discloses an inner step anchor cable remover, including a fixed tube, a movable rod is slidably connected inside the fixed tube, and sliders are fixed to the outer walls on both sides of the movable rod, and a fastening mechanism is arranged inside the movable rod. The anchor remover can be used in conjunction with different types of anchor removal and tensioning pumps through a connecting ring, saving the purchase cost of the equipment. Through the fastening mechanism, the connecting tube is rotated by the rotary handle, so that the top of the jacket gradually approaches the wall of the tapered hole, and the clamping claws of the jacket squeeze inward to clamp and fasten the anchor cable, so that the exposed shorter anchor cable can be pulled to complete the separation of the anchor cable, anchor ring and clip. It has a simple structure and is easy to use and operate.

[0005] Then, combined with the drawings in the specification, it can be seen that the anchor cable is clamped and fixed by manual rotation, and then the fastening mechanism 4 is pulled by an external tensioning pump to achieve the anchor release effect. The anchor cable is clamped and fixed by manual rotation, and the clamping strength of manual rotation is fixed. It is easy for the clamping effect to loosen due to the pulling force being greater than the clamping force, which affects the anchor release effect, and affects the clamping efficiency and the use effect. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides an anchor cable withdrawer structure for underground mine support to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anchor cable withdrawer structure for underground mine support, comprising a fixed box, a first limiting slide groove is opened on one side of the fixed box, a hydraulic push rod is fixedly connected to one end of the fixed box, a fixed ring is arranged on one side of the fixed box close to the first limiting slide groove, a first limiting slider is fixedly connected to one side of the fixed ring, and a through hole is opened in the middle of the fixed ring.

[0008] An anchor cable is inserted in the middle of the fixing ring, an anchor cup is sleeved in the middle of the anchor cable, a support block is fixedly connected to the top of the fixing ring, four extrusion plates are inserted in the bottom of the inner cavity of the through hole, a fixing plate is fixedly connected to one side of the extrusion plate, and a second limiting sliding groove is opened on one side of the fixing plate.

[0009] A connecting plate is inserted around the bottom of the fixing ring, one end of the connecting plate is fixedly connected to a limiting block, a spring is arranged on one side of the limiting block, and one end of the connecting plate is fixedly connected to a second limiting sliding block.

[0010] Preferably, a top block is fixedly connected to the top of the fixed box, a support rod is fixedly connected to the side of the fixed box away from the first limiting slide groove, and a handle is fixedly connected to the side of the fixed box close to the hydraulic push rod.

[0011] Preferably, the first limit sliding block is matched with the first limit sliding groove, the cross-sectional shape of the first limit sliding block is set to be "T"-shaped, and the moving end of the hydraulic push rod is fixedly connected to the wall of the first limit sliding block.

[0012] Preferably, both ends of the inner cavity of the through hole are provided with a funnel-shaped structure, the cross-sectional shape of the support block is set to be an arc, and the support block is arranged directly below the anchor cup.

[0013] Preferably, the outer surface of one end of the extrusion plate is arranged as an arc-shaped inclined surface, a side wall of the extrusion plate away from the fixing plate is arranged with an anti-slip groove, and four extrusion plates are arranged around the anchor cable respectively.

[0014] Preferably, the second limiting sliding block is matched with the second limiting sliding groove, the cross-sectional shape of the second limiting sliding block is set to be "T"-shaped, and the second limiting sliding block is arranged in the middle of the second limiting sliding groove.

[0015] Preferably, the spring and the limit block are arranged in the middle of the fixing ring, and the spring is arranged on a side of the limit block close to the connecting plate.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model firstly puts a fixing ring on the middle part of the anchor cable so that the anchor cable passes through the middle part of the through hole. At this time, the spring pushes the limit block, and drives the fixing plate through the connecting plate to make the extrusion plate generate a force toward the fixing ring, so that the extrusion plate can initially clamp the anchor cable and make the anti-skid groove of the extrusion plate fit with the anchor cable. When the fixing ring is controlled to pull the anchor cable, the anchor cable drives the extrusion plate to move toward the inside of the through hole, so that the anchor cable can be clamped and fixed automatically. The greater the pulling strength, the stronger the clamping force, which is convenient for fixing and use, and will not loosen, thereby improving the efficiency of anchor withdrawal.

[0018] The utility model also sets a second limiting sliding block to slide inside the second limiting sliding groove, so that the pulling of the extrusion plate by the connecting plate will not affect the horizontal movement of the extrusion plate and the fixed plate, and the support block pushes the anchor cup to facilitate the use of the anchor cable to pull out the anchor, and the support rod and the handle are convenient for auxiliary hand-held use, thereby improving the stability of the fixed box. At the same time, the through hole is set as a through hole, which can prevent the use effect from being affected by the long extension position of the anchor cable.

[0019] In summary, through the mutual influence of the above-mentioned multiple effects, the clamping installation and use can be facilitated, and the greater the pulling strength, the stronger the clamping force, and there will be no loosening, thereby improving the efficiency of anchor withdrawal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the bottom view of the connection structure between the fixing ring and the first limiting sliding block of the utility model.

[0023] Figure 4 It is a schematic diagram of the top view of the connection structure between the fixing ring and the first limiting sliding block of the utility model.

[0024] Figure 5 It is a schematic diagram of the split structure of the through hole and the extruded plate of the utility model.

[0025] Figure 6 It is a schematic diagram of the split structure of the extruded plate and the connecting plate of the utility model.

[0026] The accompanying drawings are marked as follows: 1. fixed box; 2. first limit slide groove; 3. hydraulic push rod; 4. fixed ring; 5. first limit slider; 6. through hole; 7. anchor cable; 8. anchor cup; 9. support block; 10. extrusion plate; 11. fixed plate; 12. connecting plate; 13. limit block; 14. spring; 15. second limit slider; 16. second limit slide groove; 17. top block; 18. support rod; 19. handle. DETAILED DESCRIPTION

[0027] 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.

[0028] As attached Figure 1-6 The structure of an anchor cable withdrawer for underground mine support shown in the figure comprises a fixed box 1, a first limiting slide groove 2 is opened on one side of the fixed box 1, a hydraulic push rod 3 is fixedly connected to one end of the fixed box 1, a fixed ring 4 is arranged on the side of the fixed box 1 close to the first limiting slide groove 2, a first limiting slider 5 is fixedly connected to one side of the fixed ring 4, and the hydraulic push rod 3 is started to control the first limiting slider 5 to slide inside the first limiting slide groove 2, which can drive the fixed ring 4 to move, and facilitate the pulling of the anchor cable 7 through the fixed ring 4 to realize the function of withdrawing the anchor, and a through hole 6 is opened in the middle of the fixed ring 4, and the fixed ring 4 can be conveniently put on one end of the anchor cable 7 through the through hole 6, so as to facilitate the withdrawal installation and use.

[0029] An anchor cable 7 is inserted in the middle of the fixing ring 4, and an anchor cup 8 is sleeved in the middle of the anchor cable 7. A support block 9 is fixedly connected to the top of the fixing ring 4, and four extrusion plates 10 are inserted in the bottom of the inner cavity of the through hole 6. A fixing plate 11 is fixedly connected to one side of the extrusion plate 10, and a second limiting slide groove 16 is opened on one side of the fixing plate 11. By pushing the anchor cup 8 by the support block 9, the anchor cup 8 can be limited and supported, which facilitates the sliding of the anchor cable 7 in the middle of the anchor cup 8 to achieve the function of withdrawing the anchor, and the extrusion plate 10 is inserted into the inside of the through hole 6 to squeeze the anchor cable 7. When the fixing ring 4 moves downward, the clamping and fixing strength of the extrusion plate 10 on the anchor cable 7 can be improved, thereby improving the use effect.

[0030] A connecting plate 12 is inserted around the bottom of the fixing ring 4, one end of the connecting plate 12 is fixedly connected to a limiting block 13, a spring 14 is provided on one side of the limiting block 13, and one end of the connecting plate 12 is fixedly connected to a second limiting slider 15. Through the cooperation of the second limiting slider 15 and the second limiting slide groove 16, the extrusion plate 10 can be connected to the connecting plate 12, so that the extrusion plate 10 is always located on one side of the fixing ring 4, and through the push of the limiting block 13 by the spring 14, the fixing plate 11 can be driven by the connecting plate 12 to make the extrusion plate 10 generate a force to insert into the through hole 6, which is convenient for the installation and fixation of the anchor cable 7 and improves the use effect.

[0031] As attached Figure 1 , 2As shown, a top block 17 is fixedly connected to the top of the fixed box 1, a support rod 18 is fixedly connected to the side of the fixed box 1 away from the first limiting slide groove 2, and a handle 19 is fixedly connected to the side of the fixed box 1 close to the hydraulic push rod 3. The anchor cable tray on one side of the anchor cup 8 is squeezed by the top block 17, so that the fixed box 1 can be limited and supported, and the support rod 18 and the handle 19 are used to facilitate the hand-held use of the fixed box 1.

[0032] As attached Figure 1 , 2 As shown, the first limit slider 5 is adapted to the first limit slot 2, the cross-sectional shape of the first limit slider 5 is set to a "T" shape, and the moving end of the hydraulic push rod 3 is fixedly connected to the wall of the first limit slider 5. Through the cooperation of the first limit slot 2 and the first limit slider 5, the fixed ring 4 can be fixed on one side of the first limit slot 2, and the hydraulic push rod 3 can be started to control the first limit slider 5 to drive the fixed ring 4 to move up and down, which is convenient for driving and use.

[0033] As attached Figure 2 , 5 As shown, both ends of the inner cavity of the through hole 6 are provided with a funnel-shaped structure, the cross-sectional shape of the support block 9 is set to be an arc, and the support block 9 is set directly below the anchor cup 8. The anchor cup 8 is limited and supported by the support block 9, and is conveniently sleeved on the middle part of the anchor cable 7 through the through hole 6, so as to facilitate the use of anchor withdrawal.

[0034] As attached Figure 2 , 3 As shown in Figures 5 and 6, the outer surface of one end of the extrusion plate 10 is arranged as an arc-shaped inclined surface, and the side wall of the extrusion plate 10 away from the fixed plate 11 is arranged with an anti-slip groove, and the four extrusion plates 10 are respectively arranged around the anchor cable 7. The extrusion plates 10 squeeze the anchor cable 7 to improve the connection strength between the fixing ring 4 and the anchor cable 7, and when the fixing ring 4 moves downward, the squeezing strength of the extrusion plate 10 on the anchor cable 7 can be improved, thereby improving the fixing strength and facilitating installation and use.

[0035] As attached Figure 4-6 As shown, the second limit slider 15 is adapted to the second limit slot 16, the cross-sectional shape of the second limit slider 15 is set to a "T" shape, and the second limit slider 15 is set in the middle of the second limit slot 16. Through the connection between the second limit slider 15 and the second limit slot 16, the connecting plate 12 can be connected to the fixed plate 11, and the second limit slider 15 can be moved inside the second limit slot 16 according to the horizontal movement of the extrusion plate 10, without affecting the up and down horizontal movement of the extrusion plate 10, thereby improving the use effect.

[0036] As attached Figure 2 , 5As shown in FIG. 6 , the spring 14 and the limit block 13 are arranged in the middle of the fixing ring 4, and the spring 14 is arranged on the side of the limit block 13 close to the connecting plate 12. The spring 14 pushes the limit block 13, which in turn drives the extrusion plate 10 to generate a force to insert into the through hole 6, and can automatically squeeze and fix the anchor cable 7, thereby improving the installation efficiency.

[0037] Working principle of the utility model: when in use, just put the fixing ring 4 on the middle part of the anchor cable 7 until the support block 9 fits with the anchor cup 8. At this time, the spring 14 pushes the limit block 13, which can in turn drive the extrusion plate 10 to squeeze the anchor cable 7 for preliminary clamping.

[0038] Then, by starting the hydraulic push rod 3 to pull the first limit slider 5, the fixing ring 4 can be driven to move downward. Through the fit between the anti-slip wall on one side of the extrusion plate 10 and the anchor cable 7, the anchor cable 7 can drive the extrusion plate 10 to move toward the inside of the through hole 6. When the fixing ring 4 drives the extrusion plate 10 to pull the anchor cable 7, the clamping force can be enhanced, so that the anchor cable 7 can be pulled to slide with the anchor cup 8, and the clip in the middle of the anchor cup 8 can be taken out to complete the anchor withdrawal.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anchor cable puller structure for underground mine support, comprising a fixing box (1), characterized in that: A first limiting slide groove (2) is provided on one side of the fixed box (1), a hydraulic push rod (3) is fixedly connected to one end of the fixed box (1), a fixing ring (4) is provided on one side of the fixed box (1) close to the first limiting slide groove (2), a first limiting slide block (5) is fixedly connected to one side of the fixing ring (4), and a through hole (6) is provided in the middle of the fixing ring (4); An anchor cable (7) is inserted in the middle of the fixing ring (4), an anchor cup (8) is sleeved in the middle of the anchor cable (7), a support block (9) is fixedly connected to the top of the fixing ring (4), four extrusion plates (10) are inserted in the bottom of the inner cavity of the through hole (6), a fixing plate (11) is fixedly connected to one side of the extrusion plate (10), and a second limiting sliding groove (16) is opened on one side of the fixing plate (11); A connecting plate (12) is inserted around the bottom of the fixing ring (4), one end of the connecting plate (12) is fixedly connected to a limiting block (13), one side of the limiting block (13) is provided with a spring (14), and one end of the connecting plate (12) is fixedly connected to a second limiting slider (15).

2. The anchor cable puller structure for underground mine support according to claim 1, characterized in that: A top block (17) is fixedly connected to the top of the fixed box (1), a support rod (18) is fixedly connected to the side of the fixed box (1) away from the first limiting slide groove (2), and a handle (19) is fixedly connected to the side of the fixed box (1) close to the hydraulic push rod (3).

3. The anchor cable puller structure for underground mine support according to claim 1, characterized in that: The first limiting slide block (5) is adapted to fit the first limiting slide groove (2); the cross-sectional shape of the first limiting slide block (5) is set to be a "T" shape; the movable end of the hydraulic push rod (3) is fixedly connected to the wall of the first limiting slide block (5).

4. The anchor cable puller structure for underground mine support according to claim 1, characterized in that: Both ends of the inner cavity of the through hole (6) are provided with a funnel-shaped structure, the cross-sectional shape of the support block (9) is arranged to be an arc, and the support block (9) is arranged directly below the anchor cup (8).

5. The anchor cable withdrawing device structure for underground mine support according to claim 1 is characterized in that: The outer surface of one end of the extrusion plate (10) is arranged as an arc-shaped inclined surface, and a side wall of the extrusion plate (10) away from the fixing plate (11) is provided with an anti-slip groove, and four extrusion plates (10) are respectively arranged around the anchor cable (7).

6. The anchor cable puller structure for underground mine support according to claim 1, characterized in that: The second limiting slide block (15) is matched with the second limiting slide groove (16); the cross-sectional shape of the second limiting slide block (15) is set to be a "T" shape; the second limiting slide block (15) is arranged in the middle of the second limiting slide groove (16).

7. The anchor cable puller structure for underground mine support according to claim 1, characterized in that: The spring (14) and the limit block (13) are arranged in the middle of the fixing ring (4), and the spring (14) is arranged on a side of the limit block (13) close to the connecting plate (12).

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