Mechanical device for fastening high-speed rail support bolt

Abstract

The utility model provides a mechanical device for fastening a high-speed rail support bolt, and relates to the technical field of high-speed rail support bolt fastening. Comprising a sliding frame used for moving along a track, an electric telescopic rod installed on the sliding frame, a motor installed at the telescopic end of the electric telescopic rod, a torque sensor of a motor main shaft and a clamping plate installed at the measuring end of the torque sensor and used for clamping a bolt. The clamping plate slides in the manufacturing length direction, a plurality of bolts on one side of the support are tightened, the connecting disc slides in the direction perpendicular to the length direction of the support, the bolts on the two sides of the support can be tightened through the clamping plate, and it is guaranteed that the motor is arranged perpendicular to the bolts; therefore, the rotating acting force of the motor can directly act on the tightening bolt.

Description

Technical Field

[0001] The utility model relates to the technical field of high - speed rail support bolt fastening, in particular to a mechanical device for fastening high - speed rail support bolts. Background Technique

[0002] The support anchor bolt is a support bolt anchored on the bearing padstone, which plays the role of fixing the track support. When rotating and installing the support bolt, it is necessary to manually rotate it by hand or use corresponding equipment to tighten the support bolt.

[0003] For example, a mechanical device for fastening high - speed rail support bolts in the prior art, with the publication number: CN210615708U, includes a double - wheel connected by a roller shaft, a liftable connecting frame installed on the roller shaft, a driving motor fixed on the connecting frame, a gearbox connected to the transmission shaft of the driving motor, a bushing connected to the housing of the gearbox, a fixed seat connected to the bushing, as well as a transmission device and a column - shaped bolt wrench sleeve. The output shaft of the gearbox and the bolt wrench sleeve are connected through the transmission device. The transmission device includes a main transmission shaft, three planetary gears and a secondary transmission shaft. The main transmission shaft is arranged inside the bushing. The three planetary gears are rotatably fixed inside the fixed seat through bearings. The three planetary gears include a first horizontal bevel gear, a second horizontal bevel gear and a first vertical bevel gear. One end of the main transmission shaft is connected to the output shaft of the gearbox, and the other end is connected to the large end of the first horizontal bevel gear. The first vertical bevel gear is rotatably fixed at the top of the fixed seat, and the small end faces downwards. The first vertical bevel gear meshes with both the first horizontal bevel gear and the second horizontal bevel gear. The first horizontal bevel gear and the second horizontal bevel gear are symmetrically arranged on both sides of the axis of the first vertical bevel gear. One end of the secondary transmission shaft is connected to the large end of the first vertical bevel gear, and the other end is connected to the bolt wrench sleeve.

[0004] However, when this device is in use, because a double - wheel is required, there will be a certain gap between the double - wheel and the bolt to be tightened due to the bushing, and it is inclinedly distributed. Moreover, due to the three planetary gears set, the rotational force of the driving motor cannot directly act on the bolt, so a part of the force will be consumed, thus affecting the tightening efficiency of the bolt. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a mechanical device for fastening high - speed rail support bolts.

[0006] To achieve the above - mentioned purpose, the utility model adopts the following technical scheme: A mechanical device for fastening high - speed rail support bolts, including a sliding frame for moving along the track, an electric telescopic rod installed on the sliding frame, a motor installed at the telescopic end of the electric telescopic rod, a torque sensor on the main shaft of the motor, and a clamping plate for clamping the bolt installed at the measuring end of the torque sensor.

[0007] The end face of the cylinder body of the electric telescopic rod is fixedly connected with a connecting plate. A slide rail inserted into the inner bottom surface of the sliding frame is inserted into the end face of the connecting plate. The direction in which the slide rail is inserted into the sliding frame is perpendicular to the direction in which the connecting plate is inserted into the slide rail, and the slide rail slides along the length direction of the guide rail. An anti-slip plate for contacting the end face of the connecting plate is inserted into the lower surface of the slide rail, and a push plate for pushing the anti-slip plate and the brake plate to move is inserted into the side of the slide rail.

[0008] Preferably, press blocks for rolling connection with the inner wall of the track penetrate through both sides of the lower surface of the sliding frame. One side of each press block is fixedly connected with a rack inserted into the upper surface of the sliding frame. The two racks are symmetrically arranged, and a gear meshing with the opposite tooth surfaces of the two racks is rotatably connected to the upper surface of the sliding frame.

[0009] Preferably, a plurality of lead screws distributed in an annular array are rotatably connected to the inner embedding of the lower surface of the clamping plate, and clamping blocks threadedly connected to the lead screws are slidably connected to the inner embedding of the lower surface of the clamping plate. One end of each lead screw is fixedly connected with a bevel gear. A worm gear ring meshing with a plurality of bevel gears is rotatably connected to the side of the clamping plate, and a worm meshing with the worm gear ring for transmission is rotatably connected to the side of the clamping plate.

[0010] Preferably, a spring rod connected to the anti-slip plate is fixedly connected to the lower surface of the slide rail.

[0011] Preferably, an anti-slip V-plate is rotatably connected to the inner embedding of one side of the press block, and an electric push rod is hinged between one swinging side of the anti-slip V-plate and the press block.

[0012] Preferably, an electric push rod is also arranged on one side of the slide rail. The cylinder body of the electric push rod on the slide rail is fixed on the side of the slide rail, and the telescopic end is fixed on the inner side wall of the push plate.

[0013] Preferably, one side of the push plate is slidably connected to the inclined side of one side of the anti-slip plate, and the other side is arranged in a V shape, and the inclined surface is slidably connected to one side of the brake plate.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0015] 1. In the present utility model, when in use, the sliding frame is fixed on the track and is located directly above the track. By using the slide rail to slide, the clamping plate can slide along the length direction of the production to tighten a plurality of bolts at one side position on the support. By using the connecting plate to slide in a direction perpendicular to the length of the support, the clamping plate can tighten the bolts on both sides of the support, that is, ensure that the motor is perpendicular to the bolts. Therefore, the rotational force of the motor can directly act on tightening the bolts.

[0016] 2. In the present utility model, the rotation of the gear is used to make two racks approach or move away from each other, so as to make two pressing blocks press against the inner wall of the track. Before tightening the bolt, the electric push rod on the pressing block contracts to push the anti-slip V-shaped plate to swing, so that one side of the anti-slip V-shaped plate presses against the inner wall of the track, and the pressing block is fixed on the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic three-dimensional structure diagram of a mechanical device for tightening bolts of high-speed rail bearings proposed by the present utility model;

[0018] Figure 2 A mechanical device for tightening bolts of high-speed rail bearings proposed by the present utility model Figure 1 is a schematic bottom view structure diagram;

[0019] Figure 3 FIG. is a schematic structure diagram of a slide rail of a mechanical device for tightening bolts of high-speed rail bearings proposed by the present utility model;

[0020] Figure 4 is Figure 3 a schematic bottom view structure diagram.

[0021] Legend: 1. Sliding frame; 2. Gear; 3. Rack; 4. Pressing block; 5. Anti-slip V-shaped plate; 6. Worm gear ring; 7. Electric push rod; 8. Electric telescopic rod; 9. Motor; 10. Torque sensor; 11. Clamping plate; 12. Slide rail; 13. Bevel gear; 14. Lead screw; 15. Worm; 16. Clamping block; 17. Push plate; 18. Brake plate; 19. Anti-slip plate; 20. Spring rod; 21. Connecting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0023] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0024] Such as Figures 1-4As shown, a mechanical device for tightening high-speed railway support bolts includes a sliding frame 1 for moving along a track, an electric telescopic rod 8 installed on the sliding frame 1, a motor 9 installed at the telescopic end of the electric telescopic rod 8, a torque sensor 10 on the main shaft of the motor 9, and a clamping plate 11 for clamping the bolts installed at the measuring end of the torque sensor 10. The sliding frame 1 is slid on the track to move the electric telescopic rod 8, the motor 9, the torque sensor 10 and the clamping plate 11 to the support bolt position, and the bolt is clamped by the clamping plate 11. The motor 9 is used to drive the torque sensor 10 and the clamping plate 11 to rotate to tighten the bolt, and the torque sensor 10 is used to monitor the tightening degree of the bolt in real time.

[0025] The innovation of this solution is that: the end face of the cylinder body of the electric telescopic rod 8 is fixedly connected with a connecting plate 21, and the end face of the connecting plate 21 is plugged with a slide rail 12 plugged with the inner bottom surface of the sliding frame 1, and the plugging direction of the slide rail 12 and the sliding frame 1 is perpendicular to the plugging direction of the connecting plate 21 and the slide rail 12, and the slide rail 12 slides along the length direction of the guide rail, that is, the sliding frame 1 is fixed on the track when in use, and is located directly above the track. The slide rail 12 is used to slide, so that the clamping plate 11 slides along the length direction of the support, and several bolts on one side of the support are tightened. The connecting plate 21 is used to slide in a direction perpendicular to the length direction of the support, so that the clamping plate 11 can tighten the bolts on both sides of the support. The upper surface of the slide rail 12 is elastically hinged with a plurality of bolts for sliding. The brake plate 18 contacts the inner bottom surface of the frame 1, and the anti-skid plate 19 for contacting the end surface of the connecting plate 21 is inserted on the lower surface. The relative position of the sliding frame 1 and the slide rail 12 can be fixed by utilizing the brake plate 18 to contact the sliding frame 1, and the relative position of the connecting plate 21 and the anti-skid plate 19 can be fixed by utilizing the anti-skid plate 19 to press against the surface of the connecting plate 21, and the side of the slide rail 12 is inserted with a push plate 17 for pushing the brake plate 18 and the anti-skid plate 19 to move, and the lower surface of the slide rail 12 is fixedly connected with a spring rod 20 connected to the anti-skid plate 19, and the movement of the push plate 17 can realize the movement of the brake plate 18 or the anti-skid plate 19, and the provision of the spring rod 20 can realize the automatic reset of the anti-skid plate 19 after losing the pushing effect of the push plate 17.

[0026] In order to fix the sliding carriage 1 on the track: press blocks 4 for rolling connection with the inner wall of the track penetrate through both sides of the lower surface of the sliding carriage 1. One side of each press block 4 is fixedly connected to a rack 3 inserted into the upper surface of the sliding carriage 1. The two racks 3 are symmetrically arranged, and a gear 2 meshing with the opposite tooth surfaces of the two racks 3 is rotatably connected to the upper surface of the sliding carriage 1. As shown in the figure, a handle fixed to the sliding carriage 1 by a pin shaft is provided on the gear 2, and rollers for abutting against the inner wall of the track are arranged on both sides of the press block 4. Therefore, by rotating the gear 2, the two racks 3 move closer to or away from each other, and further, the two press blocks 4 abut against the inner wall of the track. One side of a press block 4 is embedded with an anti-slip V-shaped plate 5 in a rotatable manner, and an electric push rod 7 is hinged between one swinging side of the anti-slip V-shaped plate 5 and the press block 4. Before tightening the bolt, the electric push rod 7 on the press block 4 contracts to push the anti-slip V-shaped plate 5 to swing, so that one side of the anti-slip V-shaped plate 5 abuts against the inner wall of the track, and the press block 4 is fixed on the track.

[0027] In order to enable the clamping plate 11 to clamp bolts of different sizes: a number of lead screws 14 distributed in a circular array are embedded and rotatably connected to the lower surface of the clamping plate 11, and clamping blocks 16 threadedly connected to the lead screws 14 are embedded and slidably connected to the lower surface of the clamping plate 11. One end of each lead screw 14 is fixedly connected to a bevel gear 13. A worm gear ring 6 meshing with a number of bevel gears 13 is rotatably connected to the side of the clamping plate 11, and a worm 15 meshing and driving with the worm gear ring 6 is rotatably connected to the side of the clamping plate 11. By rotating the worm 15, the worm gear ring 6 rotates, and further, the bevel gears 13 meshing with the worm gear ring 6 drive the corresponding lead screws 14 to rotate, so that the clamping blocks 16 threadedly connected to the lead screws 14 move. The bolt heads of different sizes are clamped by a number of clamping blocks 16. In addition, the worm gear ring 6 in this solution has a bevel tooth surface machined on the side, and the bevel tooth surface is meshed with the bevel gear 13.

[0028] In order to fix the relative position of the connecting plate 21 and the slide rail 12, and the relative position of the slide rail 12 and the sliding carriage 1: an electric push rod 7 is also provided on one side of the slide rail 12. The cylinder body of the electric push rod 7 on the slide rail 12 is fixed to the side of the slide rail 12, and the telescopic end is fixed to the inner wall of the push plate 17. By contracting the electric push rod 7 on the slide rail 12, the push plate 17 can be moved towards the slide rail 12. One side of the push plate 17 is slidably connected to one inclined side of the anti-slip plate 19, and the other side is arranged in a V shape and the inclined surface is slidably connected to one side of the brake plate 18. When the push plate 17 moves towards the slide rail 12, as Figure 3 and Figure 4As shown, the bottom edge of the push plate 17 first comes into contact with the inclined side of the anti-slip plate 19, enabling the anti-slip plate 19 to overcome the elastic force of the spring rod 20 and descend to contact the connecting plate 21, thus fixing the connecting plate 21 at the bottom edge of the slide rail 12. However, the slide rail 12 can slide on the bottom surface of the sliding frame 1. As the push plate 17 continues to move, the bottom edge of the push plate 17 contacts and slides on the flat part of the anti-slip plate 19. While ensuring that the push plate 17 continues to exert pressure on the anti-slip plate 19, the inclined side of the top edge of the push plate 17 contacts the brake plate 18 and pushes the brake plate 18 to swing against the elastic force of the spring hinge, causing the movable edge of the brake plate 18 to abut against the bottom surface of the sliding frame 1, thereby fixing the slide rail 12 to the bottom surface of the sliding frame 1.

[0029] Usage method: By using the meshing connection between the two racks 3 and the gear 2, the pressing blocks 4 move away from each other to clamp the inner wall of the track and move along the inner wall of the track to directly above the support to be processed. Then, it is fixed using the anti-slip V-shaped plate 5. The connecting plate 21 is pushed to move above one of the bolts on one side of the support. Then, the electric push rod 7 on the slide rail 12 contracts, causing one side of the push plate 17 to be in sliding connection with the inclined side of one side of the anti-slip plate 19. The bottom edge of the push plate 17 first comes into contact with the inclined side of the anti-slip plate 19, enabling the anti-slip plate 19 to overcome the elastic force of the spring rod 20 and descend to contact the connecting plate 21, thus fixing the connecting plate 21 at the bottom edge of the slide rail 12. As the push plate 17 continues to move, while exerting pressure on the anti-slip plate 19, the inclined side of the top edge of the push plate 17 contacts the brake plate 18, causing the movable edge of the brake plate 18 to abut against the bottom surface of the sliding frame 1, thereby fixing the slide rail 12 to the bottom surface of the sliding frame 1. Then, the electric telescopic rod 8 extends, causing the motor 9 to descend until the clamping plate 11 clamps the head of the bolt. The motor 9 is used to drive the torque sensor 10 and the clamping plate 11 to rotate to tighten the bolt, and the torque sensor 10 is used to monitor the tightening degree of the bolt in real time. After tightening is completed, the clamping plate 11 rises and resets. Then, the push plate 17 contracts and resets, causing the anti-slip plate 19 to remain in contact with the connecting plate 21 while the brake plate 18 separates from the bottom surface of the sliding frame 1, enabling the operator to push the slide rail 12 to move to another bolt on the same side as the clamping plate 11. Repeating the above steps can clamp several bolts on the same side of the support. For bolts on adjacent sides, the position of the connecting plate 21 on the slide rail 12 can be adjusted.

[0030] The wiring diagrams of the electric push rod 7, electric telescopic rod 8, motor 9, and torque sensor 10 in the present utility model belong to the common knowledge in the field. Their working principles are already well-known technologies, and their models are selected according to actual use. Therefore, the control methods and wiring arrangements of the electric push rod 7, electric telescopic rod 8, motor 9, and torque sensor 10 will not be explained in detail.

[0031] The above are only the preferred embodiments of the present utility model and do not limit the present utility model in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A mechanical device for fastening high-speed rail bearing bolts, comprising a sliding frame (1) for moving along the track, an electric telescopic rod (8) installed on the sliding frame (1), a motor (9) installed at the telescopic end of the electric telescopic rod (8), a torque sensor (10) on the main shaft of the motor (9), and a clamping plate (11) installed at the measuring end of the torque sensor (10) for clamping the bolt, characterized in that: The end face of the cylinder body of the electric telescopic rod (8) is fixedly connected with a connecting plate (21), the end face of the connecting plate (21) is inserted with a slide rail (12) inserted into the inner bottom surface of the sliding frame (1), the insertion direction of the slide rail (12) into the sliding frame (1) is perpendicular to the insertion direction of the connecting plate (21) and the slide rail (12), and the slide rail (12) slides along the length direction of the guide rail. The upper surface of the slide rail (12) is elastically hinged with a brake plate (18) for contacting the inner bottom surface of the sliding frame (1), the lower surface is inserted with an anti-slip plate (19) for contacting the end face of the connecting plate (21), and a push plate (17) for pushing the brake plate (18) and the anti-slip plate (19) to move is inserted on the side of the slide rail (12).

2. The mechanical device for fastening the high-speed rail bearing bolts according to claim 1, characterized in that: On both sides of the lower surface of the sliding frame (1), there are through holes for rolling connection with the inner wall of the track with pressure blocks (4). One side of the pressure block (4) is fixedly connected with a rack (3) inserted into the upper surface of the sliding frame (1). The two racks (3) are symmetrically arranged, and a gear (2) meshing with the opposite tooth surfaces of the two racks (3) is rotatably connected to the upper surface of the sliding frame (1).

3. The mechanical device for fastening the high-speed rail bearing bolts according to claim 1, characterized in that: A number of screw rods (14) distributed in a circular array are rotatably connected to the lower surface of the clamping plate (11) by embedding, and a clamping block (16) threadedly connected with the screw rod (14) is slidably connected to the lower surface of the clamping plate (11) by embedding. One end of the screw rod (14) is fixedly connected with a bevel gear (13). A worm gear ring (6) meshing with a number of bevel gears (13) is rotatably connected to the side of the clamping plate (11), and a worm (15) meshing and driving with the worm gear ring (6) is rotatably connected to the side of the clamping plate (11).

4. The mechanical device for fastening the high-speed rail bearing bolts according to claim 1, characterized in that: The lower surface of the slide rail (12) is fixedly connected with a spring rod (20) connected to the anti-slip plate (19).

5. The mechanical device for fastening the high-speed rail bearing bolts according to claim 2, characterized in that: One side of one of the pressure blocks (4) is rotatably connected with an anti-slip V-shaped plate (5) by embedding, and an electric push rod (7) is hinged between one swinging side of the anti-slip V-shaped plate (5) and the pressure block (4).

6. The mechanical device for fastening the high-speed rail bearing bolts according to claim 1, characterized in that: An electric push rod (7) is also arranged on one side of the slide rail (12). The cylinder body of the electric push rod (7) on the slide rail (12) is fixed on the side of the slide rail (12), and the telescopic end is fixed on the inner side wall of the push plate (17).

7. The mechanical device for fastening the high-speed rail bearing bolts according to claim 6, characterized in that: One side of the push plate (17) is slidably connected with the inclined side of one side of the anti-slip plate (19), and the other side is arranged in a V shape, and the inclined surface is slidably connected with one side of the brake plate (18).

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