A key bolt fastening device

Abstract

This utility model relates to a key bolt fastening device, belonging to the technical field of bogie fastening equipment. A position detection mechanism is used to detect the position of the key bolt. A clearance control mechanism is used to press the bolt while simultaneously pushing out the key. A bolt fastening mechanism is used to tighten the key bolt. Utilizing this utility model's equipment, a moving mechanism moves the device, the position detection mechanism accurately detects the position of the key bolt, the clearance control mechanism presses the bolt and pushes out the key, and the bolt fastening mechanism disassembles or tightens the bolt. This allows the device to replace manual disassembly and tightening operations during maintenance. By ensuring the key clearance through the thickness of the partition plate, the device automatically completes the key bolt tightening work, achieving intelligent operation of the automatic key bolt fastening equipment. This reduces labor intensity, effectively avoids operator safety accidents, reduces accidents caused by human error, improves railway transportation efficiency, and enhances railway operation safety.

Description

Technical Field

[0001] This utility model relates to the technical field of bogie fastening equipment, and in particular to a key bolt fastening device. Background Technology

[0002] The bogie key is a crucial component of a railway freight car. During a derailment, the side frame guide frame can easily detach from the wheelset bearings, leading to the wheelset separating from the bogie. To prevent this, a key is typically installed in the side frame guide frame. When the bogie is under tension, the key connects the side frame to the wheelset, preventing detachment. However, the key nuts are prone to loosening due to vehicle vibrations during operation, causing significant noise and posing a safety hazard, severely impacting railway safety. Currently, bogie maintenance involves manual disassembly and reassembly of the four key bolts on the two side frames. This process requires workers to crouch down to install the nuts while simultaneously tightening them with a pneumatic wrench in one hand, a highly inconvenient operation. Furthermore, the tightening torque cannot be accurately determined manually, leading to bolts not being properly tightened. The key-bearing clearance is also determined by experience, compromising maintenance quality.

[0003] Therefore, how to provide a device that is easy to operate, requires little labor intensity, can quickly disassemble and install the key bolts, and ensures that the bolts are tightened in place is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This utility model provides a key bolt fastening device to solve at least one of the above-mentioned technical problems.

[0005] This utility model provides a key bolt fastening device, comprising: The moving mechanism has a sliding groove on it; The position detection mechanism is slidably connected to the moving mechanism via a slide groove, and the position detection mechanism is used to detect the position of the key bolt; The clearance control mechanism is slidably connected to the moving mechanism via a slide groove, and the clearance control mechanism is used to press the bolt while simultaneously pushing out the stop key; The bolt fastening mechanism is slidably connected to the moving mechanism via a slide groove, and the bolt fastening mechanism is used to fasten the key bolt; In one embodiment, the system also includes a controller, and the moving mechanism, position detection mechanism, gap control mechanism, and bolt fastening mechanism are all electrically connected to the controller.

[0006] In one embodiment, the moving mechanism includes: Horizontal servo motor; The mounting base plate is used to mount the horizontal servo motor. The sliding base has a sliding groove, and the mounting base plate is slidably connected to the sliding base. A horizontal servo motor is used to drive the movement of the mounting base plate.

[0007] In one embodiment, the position detection mechanism includes: Laser rangefinder sensor; The lifting slide is mounted on the mounting base plate, and the laser rangefinder is mounted on the lifting slide.

[0008] In one embodiment, the laser rangefinder is mounted on the side of the lifting slide near the bogie.

[0009] In one embodiment, the clearance control mechanism includes: Switching workstation cylinders; The gap ejection cylinder is mounted on the mounting base plate, and the switching station cylinder is set at the output end of the gap ejection cylinder. An intermittent lifting cylinder is located at the output end of the intermittent ejection cylinder; The gap partition is installed at the output end of the gap lifting cylinder and is used to abut the stop key and the outer surface of the bearing; The clamp opens the cylinder, which is installed at the output end of the switching position cylinder; The ejector is installed at the output end of the ejector cylinder and is used to abut against the bolt ejector bolt stop key.

[0010] In one embodiment, the ejector clamp is composed of two sets of molds forming a scissor shape, and each set of molds has a bolt pressure plate installed at the end near the bolt.

[0011] In one embodiment, the bolt fastening mechanism includes: The depth servo motor is mounted on a support frame on a base plate and is used to drive the support frame to move. An electric trigger is mounted on a base plate with a trigger telescopic cylinder, the output end of which is connected to the electric trigger. The fastening sleeve is connected to the electric trigger drive; The lifting cylinder is fastened and is located on the side of the support frame near the electric trigger. The trigger lifting cylinder is installed inside the support frame.

[0012] In one embodiment, the support frame includes an upper frame plate and a lower frame plate, both of which are L-shaped plates. The depth servo motor and the fastening lifting cylinder are both mounted on the upper frame plate, and the trigger lifting cylinder is mounted on the lower frame plate, with its output end connected to the upper frame plate.

[0013] In one embodiment, a locking block is installed at the output end of the tightening lifting cylinder, and the locking block has a bolt locking groove. A key bolt tightening device.

[0014] Compared with the prior art, the advantages of this utility model are that the equipment of this utility model moves through a moving mechanism, the position detection mechanism accurately detects the position of the key bolt, the gap control mechanism presses the bolt to push out the key, and the bolt tightening mechanism disassembles or tightens the bolt. Thus, this utility model equipment can replace the disassembly and tightening operations in the manual maintenance process. By ensuring the key gap through the thickness of the gap partition, the equipment automatically completes the tightening work of the key bolt, realizing the intelligent operation of the automatic key bolt tightening equipment. This reduces the labor intensity of personnel, effectively avoids safety accidents of operators, reduces accidents caused by human error, improves railway transportation efficiency, and enhances railway operation safety. Attached Figure Description

[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of a key bolt fastening device according to the present invention; Figure 2 This is a schematic diagram of the moving mechanism in a key bolt fastening device according to the present invention; Figure 3 This is a schematic diagram of the position detection mechanism in a key bolt fastening device according to the present invention; Figure 4 This is a schematic diagram of the gap control mechanism in a key bolt fastening device of the present invention; Figure 5 This is a schematic diagram of the bolt fastening mechanism in a key bolt fastening device of the present invention; Figure 6 This is a schematic diagram of the working state of a key bolt fastening device according to the present invention.

[0017] Figure label: 1. Moving mechanism; 101. Horizontal servo motor; 102. Mounting base plate; 103. Translation base; 2. Position detection mechanism; 201. Laser rangefinder sensor; 202. Lifting slide; 3. Gap control mechanism; 301. Switching station cylinder; 302. Gap ejection cylinder; 303. Gap lifting cylinder; 304. Gap partition; 305. Clamp opening cylinder; 306. Ejection clamp; 4. Bolt fastening mechanism; 401. Depth servo motor; 402. Electric trigger; 403. Fastening sleeve; 404. Fastening lifting cylinder; 405. Trigger lifting cylinder. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] This utility model provides a key bolt fastening device, comprising: a moving mechanism 1, a position detection mechanism 2, a gap control mechanism 3, and a bolt fastening mechanism 4. The moving mechanism 1 has a sliding groove, and the position detection mechanism 2 is slidably connected to the moving mechanism 1 through the sliding groove, and is used to detect the position of the key bolt. The gap control mechanism 3 is slidably connected to the moving mechanism 1 through the sliding groove, and is used to press the bolt while simultaneously pushing out the key. The bolt fastening mechanism 4 is slidably connected to the moving mechanism 1 through the sliding groove, and is used to fasten the key bolt.

[0020] Specifically, when using the equipment of this utility model, it is placed on one side of the bogie, and the moving mechanism 1 is kept parallel to the bogie. The distance between the moving mechanism 1 and the bogie is appropriate. When disassembling or tightening the key bolt, the position of the key bolt is determined by the detection mechanism 2. The position of the equipment is first finely adjusted by the gap control mechanism 3 and the bolt tightening mechanism 4, and then the key bolt is disassembled or tightened. No manual intervention is required in the whole process, and the operation is convenient.

[0021] Preferably, it also includes a controller, and the moving mechanism 1, the position detection mechanism 2, the gap control mechanism 3 and the bolt fastening mechanism 4 are all electrically connected to the controller.

[0022] Specifically, the position detection mechanism 2 provides real-time feedback of detection information. When the key bolt is detected, the information is immediately fed back to the controller. The controller controls the moving mechanism 1 to stop and controls the gap control mechanism 3 and the bolt fastening mechanism 4 to perform a fastening operation on the key bolt.

[0023] Preferably, the moving mechanism 1 includes: a horizontal servo motor 101, a mounting base 102, and a sliding base 103. The horizontal servo motor 101 is mounted on the mounting base 102, and the sliding base 103 has a sliding groove. The mounting base 102 is slidably connected to the sliding base 103. The horizontal servo motor 101 is used to drive the mounting base 102 to move.

[0024] Specifically, the horizontal servo motor 101 is the power source for the moving mechanism 1, the mounting base 102 is the supporting foundation for the automatic key bolt fastening device, and the translation base 103 is located on the ground. The horizontal servo motor 101 drives the automatic key bolt fastening device, which is supported by the mounting base 102, to move horizontally on the translation base 103.

[0025] Preferably, the position detection mechanism 2 includes a laser rangefinder 201 and a lifting slide 202, wherein the lifting slide 202 is mounted on the mounting base plate 102 and the laser rangefinder 201 is mounted on the lifting slide 202.

[0026] Preferably, the laser rangefinder 201 is installed on the side of the lifting slide 202 near the bogie.

[0027] Specifically, the horizontal servo motor 101 drives the horizontal axis, the lifting slide 202 drives the vertical axis, and the displacement detection of the laser rangefinder 201 forms the depth axis. These three axes accurately detect the position of the key bolt. Since the key bolts of different bogies (such as K2 and K6 bogies) are not consistent in the width and length directions of the bogie, the detection of the horizontal and depth positions can determine the bogie model and the precise position of the bolt on the horizontal plane. However, the wheel wear of different bogies is also different, resulting in different wheel diameters. This means that even for the same bogie, the height of the key bolt will be different. The lifting slide 202 can drive the laser rangefinder 201 to move in the vertical direction to detect the height of the key bolt. Finally, the position information is fed back to the controller, and the equipment automatically adjusts the fastening device according to the detected position without human intervention, resulting in a high degree of automation.

[0028] Preferably, the gap control mechanism 3 includes: a switching position cylinder 301, a gap ejection cylinder 302, a gap lifting cylinder 303, a gap partition 304, a clamp opening cylinder 305, and an ejection clamp 306. The gap ejection cylinder 302 is mounted on the mounting base plate 102. The switching position cylinder 301 is located at the output end of the gap ejection cylinder 302, and the gap lifting cylinder 303 is located at the output end of the gap ejection cylinder 302. The gap partition 304 is mounted at the output end of the gap lifting cylinder 303 and is used to abut the stop key against the outer surface of the bearing. The clamp opening cylinder 305 is mounted at the output end of the switching position cylinder 301. The ejection clamp 306 is mounted at the output end of the clamp opening cylinder 305 and is used to press the bolt while ejecting the bolt stop key.

[0029] Preferably, the ejector clamp 306 is composed of two sets of molds forming a scissor shape, and each set of molds has a bolt pressure plate installed at the end near the bolt.

[0030] Specifically, the switching station cylinder 301 can switch between left and right stations to achieve the key ejection action at different positions. The gap ejection cylinder 302 provides the power source, driving the entire gap control mechanism 3 to move forward. The gap lifting cylinder 303 moves the gap partition 304 upward, and the gap partition 304 contacts the key and the outer surface of the bearing to meet the process quality control requirements. The clamp opening cylinder 305 drives the ejection clamp 306 to move. The ejection clamp 306 is a scissor-shaped mold, and there is a set of bolt pressure plates at the front end of each of its two sets of molds. The side frame positions for tightening the key bolts are symmetrically opened. When tightening, the clamp opening cylinder 305 extends and retracts, driving the ejection clamp 306 to open and close, pressing the bolt while ejecting the key. Before tightening, the gap ejection cylinder 302 extends and the gap lifting cylinder 303 extends, so that the gap partition 304 is against the bearing. After the key is ejected, it presses against the gap partition 304. After tightening, the gap push cylinder 302 retracts first, removing the gap partition 304 from the stop key and bearing. Then, the gap lifting cylinder 303 retracts to its original position, completing the gap control. The entire process requires no manual intervention, resulting in a high degree of automation and precise control.

[0031] Preferably, the bolt fastening mechanism 4 includes: a depth servo motor 401, an electric trigger 402, a fastening sleeve 403, a fastening lifting cylinder 404, and a trigger lifting cylinder 405. The depth servo motor 401 is mounted on a support frame on the mounting base plate 102 and is used to drive the support frame to move. The trigger telescopic cylinder is mounted on the mounting base plate 102 and its output end is connected to the electric trigger 402. The fastening sleeve 403 is connected to the electric trigger 402. The fastening lifting cylinder 404 is located on the side of the support frame near the electric trigger 402. The trigger lifting cylinder 405 is installed inside the support frame.

[0032] Specifically, the depth servo motor 401 serves as the power source, driving the bolt tightening mechanism 4 to extend into the side frame. The electric trigger 402 drives the tightening sleeve 403 to rotate, and the tightening lifting cylinder 404 descends to press down on the bolt. During the tightening process, the bolt is always pressed into the locking groove to prevent it from rotating. The clamping cylinder 305 pushes out, and the clamping and pushing clamp 306 pushes out the stop key. At this time, the stop key abuts against the gap partition 304. The trigger telescopic cylinder (not shown in the figure) pushes out, driving the electric trigger 402 and the tightening sleeve 403 to rise. The electric trigger 402 rotates to begin tightening. The entire tightening process is completed through the linkage of various cylinders, without manual intervention. In order to achieve fully automated control, the depth servo motor 401, electric trigger 402, tightening sleeve 403, tightening lifting cylinder 404, trigger lifting cylinder 405, and trigger telescopic cylinder are all electrically connected to the controller to receive commands from the controller and execute actions.

[0033] Preferably, the support frame includes an upper frame plate and a lower frame plate, both of which are L-shaped plates. The depth servo motor 401 and the fastening lifting cylinder 404 are both mounted on the upper frame plate, and the trigger lifting cylinder 405 is mounted on the lower frame plate, with its output end connected to the upper frame plate.

[0034] Specifically, the operation of the trigger lifting cylinder 405 can change the distance between the upper frame plate and the lower frame plate, thereby changing the height of the fastening lifting cylinder 404.

[0035] Preferably, the output end of the fastening lifting cylinder 404 is equipped with a snap-fit ​​block, and the snap-fit ​​block has a bolt snap-fit ​​groove.

[0036] Specifically, the locking groove is used to lock the bolt in place to prevent the bolt from rotating and causing inadequate tightening. In order to monitor the torque and prevent overtightening, a dynamic torque sensor can be installed on the fastening sleeve 403 and electrically connected to the controller. When the torque reaches the set value, the electric trigger 402 stops, which drives the fastening sleeve 403 to stop working. This makes the device of this utility model not only able to confirm the tightening torque, but also ensure that the bolt is tightened in place.

[0037] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A key stop bolt fastening apparatus characterized by, include: The moving mechanism (1) has a sliding groove on it; The position detection mechanism (2) is slidably connected to the moving mechanism (1) via a slide groove, and the position detection mechanism (2) is used to detect the position of the key bolt; The gap control mechanism (3) is slidably connected to the moving mechanism (1) via a slide groove, and the gap control mechanism (3) is used to press the bolt while pushing out the stop key; The bolt fastening mechanism (4) is slidably connected to the moving mechanism (1) via a groove, and the bolt fastening mechanism (4) is used to fasten the key bolt.

2. The retaining key bolt fastening apparatus according to claim 1, wherein It also includes a controller, and the moving mechanism (1), the position detection mechanism (2), the gap control mechanism (3) and the bolt fastening mechanism (4) are all electrically connected to the controller.

3. The retaining key bolt fastening apparatus according to claim 1 or 2, characterized by, The moving mechanism (1) includes: Horizontal servo motor (101); Mounting base plate (102), on which the horizontal servo motor (101) is mounted; A translation base (103) is provided with a sliding groove. The mounting base plate (102) is slidably connected to the translation base (103). The horizontal servo motor (101) is used to drive the mounting base plate (102) to move.

4. The block key bolt fastening apparatus according to claim 3, characterized by The position detection mechanism (2) includes: Laser rangefinder (201); A lifting slide (202) is mounted on the mounting base plate (102), and the laser rangefinder (201) is mounted on the lifting slide (202).

5. The key stop bolt fastening apparatus according to claim 4, characterized by, The laser rangefinder (201) is installed on the side of the lifting slide (202) near the bogie.

6. The block key bolt fastening apparatus according to claim 3, characterized by The gap control mechanism (3) includes: Switching station cylinder (301); An intermittent ejection cylinder (302) is mounted on the mounting base plate (102), and a switching station cylinder (301) is located at the output end of the intermittent ejection cylinder (302). A gap lifting cylinder (303) is disposed at the output end of the gap pushing cylinder (302); A gap partition (304) is installed at the output end of the gap lifting cylinder (303) and is used to abut the stop key and the outer surface of the bearing; The clamping cylinder (305) is installed at the output end of the switching position cylinder (301); A ejector (306) is installed at the output end of the ejector cylinder (305) and is used to abut against the bolt ejector bolt stop key.

7. The block key bolt fastening apparatus according to claim 6, characterized by, The ejector clamp (306) is composed of two sets of molds forming a scissor shape, and each set of molds has a bolt pressure plate installed at the end near the bolt.

8. The block key bolt fastening apparatus according to claim 3, characterized by, The bolt fastening mechanism (4) includes: A depth servo motor (401) is provided on the mounting base plate (102) with a support frame. The depth servo motor (401) is mounted on the support frame and is used to drive the support frame to move. An electric trigger (402) is provided on the mounting base plate (102), and the output end of the trigger telescopic cylinder is connected to the electric trigger (402). A fastening sleeve (403) is connected to the electric trigger (402) via a transmission. A fastening lifting cylinder (404) is provided on the side of the support frame near the electric trigger (402); Trigger lifting cylinder (405) is installed inside the support frame.

9. The block key bolt fastening apparatus according to claim 8, characterized by, The support frame includes an upper frame plate and a lower frame plate, both of which are L-shaped plates. The depth servo motor (401) and the fastening lifting cylinder (404) are both mounted on the upper frame plate, and the trigger lifting cylinder (405) is mounted on the lower frame plate, with its output end connected to the upper frame plate.

10. The block key bolt fastening apparatus according to claim 8, characterized by, The output end of the fastening lifting cylinder (404) is equipped with a snap-fit ​​block, and the snap-fit ​​block has a bolt snap-fit ​​groove.

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