Anchor rod drawing device

Abstract

The utility model discloses an anchor rod drawing device, which relates to the technical field of building construction and comprises a moving seat, a fixing frame is fixedly connected to the upper surface of the moving seat, a lifting mechanism is arranged in the fixing frame, clamping mechanisms are oppositely arranged on the left side and the right side in the lifting mechanism, and a pushing mechanism is arranged at the bottom end of the lifting mechanism. A servo motor in the fixing frame is started to drive a first gear to rotate, meanwhile, the first gear pushes second gears on the two sides to drive a first threaded rod to rotate, a threaded block on the first threaded rod can ascend and descend on the first threaded rod at the moment, and meanwhile the threaded block can drive a clamping mechanism to ascend quickly; and meanwhile, the first threaded rod rotates to drive the second threaded rod to synchronously rotate in the threaded barrel, at the moment, the threaded barrel can push the supporting plate to move downwards, and the anchor rod is further pushed in the drawing process.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to an anchor bolt pulling device. Background Technology

[0002] Rock bolts are key components in coal mine roadway support, achieving self-supporting structures by reinforcing the surrounding rock. This technology has expanded into the engineering construction field, widely used in slope stabilization, tunnel lining, and dam reinforcement. As a tension structure deeply embedded in the strata, one end of the rock bolt is anchored to the engineering structure, while the other end is embedded in the soil and rock layer. The rock bolt pull-out device is used for removing the rock bolt after use.

[0003] An anchor bolt pulling device disclosed in Chinese Patent Publication No. CN211401921U uses an anchor and a clamp to hold the anchor bolt to be tested. Then, multiple jacks push the wall surface where the anchor bolt is located to provide a pulling force. Because the clamp is designed so that when the anchor bolt is clamped, the end of the clamp away from the jack extends to the outside of the conical through hole, the end of the anchor away from the jack does not directly contact the wall surface, thus forming a certain distance of pulling space. However, the pulling device has low flexibility and is not convenient for quick and efficient anchor bolt pulling work in different positions. At the same time, the pulling efficiency is low, which affects the overall anchor bolt removal rate. Utility Model Content

[0004] The purpose of this invention is to provide an anchor bolt pulling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an anchor bolt pulling device, comprising a movable seat, a fixed frame fixedly connected to the upper surface of the movable seat, a lifting mechanism provided inside the fixed frame, clamping mechanisms arranged opposite to each other on the left and right sides inside the lifting mechanism, a pushing mechanism provided at the bottom end of the lifting mechanism, and a support plate rotatably connected to the bottom end of the pushing mechanism.

[0006] Preferably, the front end of the movable seat has a through groove inside, which is used to quickly adjust the anchor rod to the center position of the clamping mechanism. A handle is fixed to the center position on the left side of the fixed frame, which is used to push the pulling device to move.

[0007] Preferably, the lifting mechanism includes a servo motor fixedly connected to the center position inside the top of the fixed frame. A first gear is installed on the output shaft end of the servo motor. Second gears are meshed and connected to the left and right sides of the first gear. A first threaded rod is concentrically fixed to the bottom ends of the two second gears. A threaded block is threadedly connected to one side of the outer side of the first threaded rod.

[0008] Preferably, the clamping mechanism includes two hydraulic pumps fixed to the inner sides of the threaded blocks, and the inner sides of the hydraulic pumps are fixed with grippers.

[0009] Preferably, the teeth on the two grippers are staggered, and the contact surfaces between the two grippers and the anchor rod are provided with rubber pads.

[0010] Preferably, the pushing mechanism includes a second threaded rod rotatably connected to the left and right sides inside the movable seat. The top end of the second threaded rod is concentrically fixed to the first threaded rod. A threaded cylinder is threadedly connected to the bottom end of the second threaded rod. The lower surface of the threaded cylinder is rotatably connected to the support plate. Limiting grooves are formed on the left and right sides inside the movable seat. A first magnetic plate is fixedly connected to the top end of the outer side of the limiting groove, and a second magnetic plate is fixedly connected to the bottom end of the outer side of the limiting groove. Movable grooves are formed on the left and right sides opposite to each other at the top end inside the threaded cylinder. Electromagnets are fixedly connected to the inner sides of the two movable grooves. A first magnetic block is slidably connected inside the movable groove, and a second magnetic block is fixedly connected to the outer side of the first magnetic block.

[0011] Preferably, the contact surfaces of the second magnetic block and the first magnetic plate are magnetically attracted, while the contact surfaces of the second magnetic block and the second magnetic plate are magnetically repelled.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This type of anchor bolt pulling device features clamping mechanisms on both sides inside the lifting mechanism. The clamping jaws on these mechanisms can quickly clamp the anchor bolt. Simultaneously, a servo motor inside the fixed frame starts, driving the first gear to rotate. This first gear then drives the second gears on both sides, causing the first threaded rod to rotate. The threaded blocks on the first threaded rod can then move up and down, simultaneously driving the clamping mechanism to quickly lift and pull the anchor bolt. The rotation of the first threaded rod also causes the second threaded rod to rotate synchronously inside the threaded cylinder. This threaded cylinder pushes the support plate downwards, further pushing the anchor bolt during the pulling process. This effectively improves the anchor bolt pulling effect and overall pulling rate, enhancing the overall performance of the pulling device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the overall structure of the gripper of this utility model.

[0018] In the diagram: 1. Movable seat; 101. Through slot; 102. Limiting slot; 103. First magnetic plate; 104. Second magnetic plate; 2. Fixing frame; 201. Handle; 3. Lifting mechanism; 301. Servo motor; 302. First gear; 303. Second gear; 304. First threaded rod; 305. Threaded block; 4. Clamping mechanism; 401. Hydraulic pump; 402. Gripper; 5. Pushing mechanism; 501. Second threaded rod; 502. Threaded cylinder; 6. Movable slot; 601. Electromagnet; 602. First magnetic block; 603. Second magnetic block; 7. Support plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides an anchor bolt pulling device, including a movable seat 1, a fixed frame 2 fixedly connected to the upper surface of the movable seat 1, a lifting mechanism 3 inside the fixed frame 2, clamping mechanisms 4 arranged opposite to each other on the left and right sides inside the lifting mechanism 3, a pushing mechanism 5 at the bottom end of the lifting mechanism 3, and a support plate 7 rotatably connected to the bottom end of the pushing mechanism 5. The support plate 7 contacts the ground, which can effectively support the anchor bolt pulling device.

[0021] The front end of the movable seat 1 has a through groove 101 inside. The through groove 101 is used to quickly adjust the anchor rod to the center position of the clamping mechanism 4. A handle 201 is fixed to the center position on the left side of the fixed frame 2. The handle 201 is used to push the pulling device to move.

[0022] The lifting mechanism 3 includes a servo motor 301 fixedly connected to the center of the top of the fixed frame 2. A first gear 302 is installed on the output shaft of the servo motor 301. Second gears 303 are meshed on the left and right sides of the first gear 302. A first threaded rod 304 is concentrically fixed to the bottom of the two second gears 303. A threaded block 305 is threadedly connected to one side of the first threaded rod 304. When the servo motor 301 is started, it can drive the first gear 302 to rotate. At this time, the first gear 302 pushes the second gears 303 on both sides to rotate synchronously, which can drive the first threaded rod 304 to rotate. At this time, the threaded block 305 on the first threaded rod 304 can drive the clamping mechanism 4 to perform lifting and lowering movements and perform anchor bolt pulling work.

[0023] The clamping mechanism 4 includes a hydraulic pump 401 fixed to the inner side of two threaded blocks 305. The inner side of the hydraulic pump 401 is fixed with a jaw 402. By clamping the two sets of jaws 402 in an alternating manner, the pulling of anchor bolts of different diameters can be performed.

[0024] The teeth on the two jaws 402 are staggered, and the contact surfaces between the two jaws 402 and the anchor rod are provided with rubber pads.

[0025] The pushing mechanism 5 includes a second threaded rod 501 rotatably connected to the left and right sides inside the movable seat 1. The top end of the second threaded rod 501 is concentrically fixed to the first threaded rod 304. The bottom end of the second threaded rod 501 is externally threaded to a threaded cylinder 502. The lower surface of the threaded cylinder 502 is rotatably connected to the support plate 7. Limiting grooves 102 are opened on the left and right sides inside the movable seat 1. A first magnetic plate 103 is fixedly connected to the top end of the outer side of the limiting groove 102, and a second magnetic plate 104 is fixedly connected to the bottom end of the outer side of the limiting groove 102. Movable grooves 6 are opened on the left and right sides of the top end inside the threaded cylinder 502. Electromagnets 601 are fixedly connected to the inner sides of the two movable grooves 6. A first magnetic block 602 is slidably connected inside the movable grooves 6. A second magnetic block 603 is fixedly connected to the outer side of the first magnetic block 602. When the first threaded rod 304 drives the second threaded rod 501 to rotate, the second threaded rod 501 rotates inside the threaded cylinder 502. Rotation can drive the threaded cylinder 502 to move up and down. At the same time, the second magnetic block 603 on the threaded cylinder 502 contacts the first magnetic plate 103 on the limiting groove 102, and can then extend out from the inside of the threaded cylinder 502. At this time, the second magnetic block 603 can stably limit the threaded cylinder 502. When the second magnetic block 603 contacts the second magnetic plate 104, the repulsive magnetic force of the second magnetic plate 104 can cause the second magnetic block 603 to be retracted into the threaded cylinder 502, thus canceling the limitation on the threaded cylinder 502. At this time, the threaded cylinder 502 can rotate with the rotation of the second threaded rod 501, and can be activated by the electromagnet 601 in the movable groove 6, which can generate a repulsive magnetic force and push the second magnetic block 603 on one side of the first magnetic block 602 out of the threaded cylinder 502. At this time, the second magnetic block 603 limits the threaded cylinder 502, which can facilitate the subsequent lifting of the threaded cylinder 502.

[0026] The second magnetic block 603 is magnetically attracted to the contact surface of the first magnetic plate 103, and magnetically repelled to the contact surface of the second magnetic block 603 and the second magnetic plate 104. Meanwhile, all contents not described in detail in this specification are prior art known to those skilled in the art.

[0027] In this embodiment, during use: the handle 201 can push the fixing frame 2 to a suitable position, and the anchor rod to be pulled is placed at the center of the two sets of grippers 402. At this time, the hydraulic pump 401 is started, which pushes the grippers 402 to move and the two sets of grippers 402 complete the clamping work of the anchor rod. At this time, the servo motor 301 inside the fixing frame 2 is started, which drives the first gear 302 to rotate. The first gear 302 then drives the second gears 303 on both sides to rotate synchronously, which drives the first threaded rod 304 to rotate. At this time, the threaded block 305 on the first threaded rod 304 can drive the clamping mechanism 4 to lift and pull the anchor rod. At the same time, the first threaded rod 304 drives the second threaded rod 501 to rotate, and the second threaded rod 501 is in the thread... Rotation within the cylinder 502 can drive the threaded cylinder 502 to move up and down, and cause the threaded cylinder 502 to drive the support plate 7 to move downward, further pushing the anchor rod during the pulling process. At the same time, the second magnetic block 603 on the threaded cylinder 502 slides in the limiting groove 102, and due to the magnetic force of the first magnetic plate 103, the threaded cylinder 502 can be stably limited. When the threaded cylinder 502 drives the second magnetic block 603 to the position of the second magnetic plate 104 on the limiting groove 102, the repulsive magnetic force of the second magnetic plate 104 can push the second magnetic block 603 into the interior of the threaded cylinder 502, thereby canceling the limitation of the threaded cylinder 502 by the second magnetic block 603. The threaded cylinder 502 can rotate with the rotation of the second threaded rod 501 without affecting the subsequent rotation of the first threaded rod 304.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An anchor bolt pulling device, comprising a movable base (1), characterized in that: The upper surface of the movable seat (1) is fixedly connected to a fixed frame (2). The fixed frame (2) is provided with a lifting mechanism (3). The left and right sides of the lifting mechanism (3) are provided with clamping mechanisms (4). The bottom end of the lifting mechanism (3) is provided with a pushing mechanism (5). The bottom end of the pushing mechanism (5) is rotatably connected to a support plate (7).

2. The anchor bolt pull-out device according to claim 1, characterized in that: The front end of the movable seat (1) has a through groove (101) inside. The through groove (101) is used to quickly adjust the anchor rod to the center position of the clamping mechanism (4). The center position of the left side of the fixed frame (2) is fixed with a handle (201). The handle (201) is used to push the pulling device to move.

3. The anchor bolt pull-out device according to claim 1, characterized in that: The lifting mechanism (3) includes a servo motor (301) fixedly connected to the center of the top of the fixed frame (2). A first gear (302) is installed on the output shaft end of the servo motor (301). The left and right sides of the first gear (302) are meshed with second gears (303). The bottom ends of the two second gears (303) are concentrically fixed with a first threaded rod (304). A threaded block (305) is threadedly connected to one side of the outside of the first threaded rod (304).

4. The anchor bolt pull-out device according to claim 3, characterized in that: The clamping mechanism (4) includes two hydraulic pumps (401) fixed to the inner side of the threaded blocks (305), and the inner side of the hydraulic pumps (401) is fixed with grippers (402).

5. The anchor bolt pull-out device according to claim 4, characterized in that: The teeth on the two jaws (402) are staggered, and the contact surfaces between the two jaws (402) and the anchor rod are provided with rubber pads.

6. The anchor bolt pull-out device according to claim 3, characterized in that: The pushing mechanism (5) includes a second threaded rod (501) rotatably connected to the left and right sides inside the movable seat (1). The top end of the second threaded rod (501) is concentrically fixed to the first threaded rod (304). The bottom end of the second threaded rod (501) is externally threaded to a threaded cylinder (502). The lower surface of the threaded cylinder (502) is rotatably connected to the support plate (7). Limiting grooves (102) are opened on the left and right sides inside the movable seat (1). The top end of the outer side of the limiting groove (102) is fixed to a first magnetic plate (103). The bottom end of the outer side of the limiting groove (102) is fixed to a second magnetic plate (104). Movable grooves (6) are opened opposite to each other on the left and right sides of the top end inside the threaded cylinder (502). Electromagnets (601) are fixed to the inner sides of the two movable grooves (6). A first magnetic block (602) is slidably connected inside the movable groove (6). A second magnetic block (603) is fixed to the outer side of the first magnetic block (602).

7. The anchor bolt pull-out device according to claim 6, characterized in that: The second magnetic block (603) is magnetically attracted to the contact surface of the first magnetic plate (103), and the second magnetic block (603) is magnetically repelled to the contact surface of the second magnetic plate (104).

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