Subway track inspection robot guide rail clamping piece

Abstract

The utility model discloses a subway track inspection robot guide rail fastener relates to subway inspection robot guide rail fastener technical field, including guide rail main part, the cooperation of the fastener main part is movably arranged on the guide rail main part, the quick detachable wheel group is symmetrically set up on the fastener main part, be provided with the clamping block on the quick detachable wheel group, be provided with the fastening wedge on the clamping block, the fastener main part is symmetrically set up with the clamping block cooperation's clamping groove, the side of fastener main part is rotatably provided with fastening shaft through the fixed plate, be provided with the eccentric fastening wheel that cooperates with fastening wedge on the fastening shaft, the side of fastening wedge to eccentric fastening wheel is inclined plane. The utility model discloses through the cooperation of eccentric fastening wheel and fastening wedge, can lock the quick detachable wheel group firmly in the clamping groove, has realized the tool -free quick change, and maintenance personnel only need to turn the handle and can complete dismounting.

Description

Technical Field

[0001] This utility model relates to the technical field of guide rail clamps for subway inspection robots, specifically a guide rail clamp for a subway track inspection robot. Background Technology

[0002] With the rapid development of urban rail transit, the safe operation and maintenance of subway tunnels has become increasingly important. Subway track inspection robots, as key equipment for achieving intelligent and routine inspection of tunnel facilities, have been widely used. These robots are typically suspended by guide rail clamps and move along rigid guide rails pre-installed on the tunnel ceiling. They are equipped with various sensors such as high-definition cameras, LiDAR, and infrared thermal imagers to monitor the condition and collect data on tunnel structures, tracks, and overhead contact lines.

[0003] The guide rail clamp is a key walking component of a robot. Its core functions include bearing the robot's entire weight, ensuring precise guidance along the guide rail, and providing smooth, low-resistance movement. Existing clamps typically use multiple independent rollers directly mounted on the clamp body via bearings and shafts. The position of each roller needs to be individually adjusted and locked using bolts or other fasteners.

[0004] However, the existing technology still has shortcomings in use: the environment inside subway tunnels is harsh, dusty, and humid, causing the rollers to wear out abnormally quickly, making them typical wear parts. When it is necessary to replace worn rollers, maintenance personnel must go deep into the tunnel work site, use special tools to loosen the fastening bolts one by one, remove the old rollers, replace them with new rollers, and then use special tools to tighten the fastening bolts one by one until the new rollers are locked in place. When multiple rollers need to be replaced, the above steps need to be repeated many times. The whole process is cumbersome and time-consuming, with a single replacement taking as long as ten minutes or even longer, which seriously affects the normal operation and attendance rate of the inspection robot and the efficiency of tunnel operation and maintenance. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a guide rail clamp for a subway track inspection robot. Through the cooperation of the eccentric fastening wheel and the fastening wedge, the quick-release wheel set can be firmly locked in the slot, realizing tool-free quick replacement. Maintenance personnel only need to turn the handle to complete the disassembly and assembly, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a guide rail clamp for a subway track inspection robot, comprising a guide rail body, a clamp body movably disposed on the guide rail body, quick-release wheel sets symmetrically disposed on the clamp body, a clamping block disposed on the quick-release wheel set, a fastening wedge disposed on the clamping block, and symmetrically formed grooves on the clamp body that cooperate with the clamping block. A fastening shaft is rotatably disposed on the side of the clamp body via a fixing plate, and an eccentric fastening wheel that cooperates with the fastening wedge is disposed on the fastening shaft. The side of the fastening wedge facing the eccentric fastening wheel is inclined, and the inclined surface gradually extends from the inside to the outside towards the eccentric fastening wheel from top to bottom. A ratchet secondary fixing assembly is disposed on the fastening shaft. A drive assembly that cooperates with the guide rail body is disposed on the clamp body, and a subway track robot fixing assembly is disposed on the clamp body. Align the quick-release wheel assembly with the slot on the main body of the clamp and insert it. Turn the handle to rotate the fastening shaft, which in turn drives the eccentric fastening wheel to rotate synchronously. During the rotation of the eccentric fastening wheel, its outer edge presses against the inclined surface of the fastening wedge. Due to the design of the inclined surface, the rotational motion of the eccentric wheel is converted into a vertically downward clamping force, which firmly presses the clamp into the bottom of the slot, eliminating all gaps and achieving a rigid connection. The fastening shaft is locked by the ratchet secondary fixing component to prevent it from reversing due to vibration, which would cause the eccentric fastening wheel to loosen. The drive component provides the clamp body with the power to move along the guide rail body. The subway track robot fixing component is used to install and support the robot body.

[0007] Furthermore, the ratchet secondary fixing assembly is a ratchet mounted on the fastening shaft. A support plate is provided on the side of the main body of the locking component. An anti-disengagement block is movably mounted below the support plate. A guide post is vertically mounted on the anti-disengagement block, penetrating the support plate. A locking tooth is provided at the upper end of the guide post, engaging with the ratchet teeth on the ratchet. An elastic element is provided on the portion of the guide post between the support plate and the locking tooth. When the eccentric fastening wheel rotates to the locked position, the ratchet also rotates synchronously. Under the elastic force of the locking spring, the guide post and the locking tooth at the top move upwards, causing the locking tooth to automatically engage with the grooves of the ratchet teeth on the ratchet.

[0008] Furthermore, the elastic element is a locking spring, and the locking spring is movably sleeved on the guide post at the part between the support plate and the locking teeth.

[0009] Furthermore, the driving component is a drive motor horizontally positioned in a through slot on the lower surface of the card body. A gear is located at the end of the output shaft of the drive motor, and a rack meshing with the gear is located on the lower surface of the guide rail body. The output shaft of the drive motor drives the gear to rotate, and the gear meshes with the rack fixedly mounted on the guide rail body. Utilizing the principle of meshing transmission, the rotational motion of the gear is converted into linear motion of the card body along the rack.

[0010] Furthermore, the quick-release wheel assembly is a wheel frame mounted on the locking block, and rollers are rotatably mounted on the wheel frame via bearings and a rotating shaft. The wheel frame serves as a support, and the rollers rotate smoothly via bearings and a rotating shaft. The entire wheel frame is connected to the main body of the locking component via the locking block.

[0011] Furthermore, the subway track robot fixing component is a robot mounting frame set on the lower surface of the main body of the card, and the robot mounting frame has mounting holes. The robot mounting frame is a frame structure with mounting holes, and is rigidly connected to the inspection robot body by standard fasteners such as bolts.

[0012] Furthermore, a handle is provided on the fastening shaft. The handle forms a force-saving lever, making the operation easier.

[0013] Furthermore, a grip sleeve is provided on the throttle. The grip sleeve is made of rubber or plastic and serves to prevent slipping, increase friction, and improve operating comfort.

[0014] Based on the above technical solution, the beneficial effects achieved by the guide rail clamp of this utility model for subway track inspection robot after practical application are as follows: This invention utilizes quick-release wheel sets, where the locking blocks on the wheel sets engage with precisely machined slots on the main body of the locking mechanism. This ensures a high degree of consistency in the installation position of each quick-release wheel set on the main body of the locking mechanism. Rotating the fastening shaft drives the eccentric fastening wheel on it to rotate. The outer edge of the eccentric fastening wheel then presses against the inclined surface of the fastening wedge block set on the locking block. Due to the inclined surface, the rotational motion of the eccentric fastening wheel is efficiently converted into a huge vertical downward clamping force, firmly locking the quick-release wheel set in the slot. At the same time, under the elastic force of the locking spring, the locking teeth automatically engage with the tooth grooves of the ratchet teeth on the ratchet, forming a purely mechanical one-way lock. This prevents the fastening shaft from loosening due to reverse rotation for any reason, achieving true "tool-free" quick replacement. Maintenance personnel only need to turn the handle to complete the disassembly and assembly, reducing the replacement time of a single wheel set from the traditional tens of minutes to tens of seconds, improving maintenance efficiency, and greatly increasing the attendance rate of the subway track inspection robot. Attached Figure Description

[0015] Figure 1 This is a front-view three-dimensional structural diagram of the present invention.

[0016] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention viewed from below.

[0018] Figure 4 This is a three-dimensional structural diagram of the quick-release wheel assembly in this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the main body of the card in this utility model.

[0020] In the diagram: 1-Card body, 2-Fixing plate, 3-Fasting shaft, 4-Eccentric fastening wheel, 5-Ratchet, 6-Support plate, 7-Wheel frame, 8-Roller, 9-Card block, 10-Fasting wedge, 11-Thrust, 12-Handle cover, 13-Guide rail body, 14-Robot mounting frame, 15-Mounting hole, 16-Locking tooth, 17-Locking spring, 18-Guide post, 19-Anti-detachment block, 20-Rack, 21-Drive motor, 22-Gear, 23-Card slot. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 This embodiment provides a technical solution: a guide rail clamp for a subway track inspection robot, including a guide rail body 13, a clamp body 1 movably mounted on the guide rail body 13, quick-release wheel sets symmetrically mounted on the clamp body 1, a clamping block 9 mounted on the quick-release wheel set, a fastening wedge 10 mounted on the clamping block 9, and symmetrically opened grooves 23 on the clamp body 1 that cooperate with the clamping block 9. A fastening shaft 3 is rotatably mounted on the side of the clamp body 1 via a fixing plate 2. An eccentric fastening wheel 4 that cooperates with the fastening wedge 10 is mounted on the fastening shaft 3. The side of the fastening wedge 10 facing the eccentric fastening wheel 4 is inclined, and the inclined surface gradually extends from the inside to the outside towards the eccentric fastening wheel 4 from top to bottom. A ratchet secondary fixing component is mounted on the fastening shaft 3. A drive component that cooperates with the guide rail body 13 is mounted on the clamp body 1. A subway track robot fixing component is mounted on the clamp body 1. Align the quick-release wheel assembly's locking block 9 with the locking slot 23 on the main body 1 and insert it. Turn the handle 11 to rotate the fastening shaft 3, causing the eccentric fastening wheel 4 to rotate synchronously. During the rotation of the eccentric fastening wheel 4, its outer edge will press against the inclined surface of the fastening wedge block 10. Due to the design of the inclined surface, the rotational motion of the eccentric wheel is converted into a vertically downward clamping force, firmly pressing the locking block 9 into the bottom of the locking slot 23, eliminating all gaps, and achieving a rigid connection. Lock the fastening shaft 3 through the ratchet secondary fixing component to prevent it from reversing due to vibration, which would cause the eccentric fastening wheel 4 to loosen. The drive component provides the power for the main body 1 to move along the guide rail body 13. The subway track robot fixing component is used to install and support the robot body.

[0023] Furthermore, the ratchet secondary fixing assembly consists of a ratchet 5 mounted on the fastening shaft 3. A support plate 6 is provided on the side of the clamping body 1, and an anti-disengagement block 19 is movably mounted below the support plate 6. A guide post 18 is vertically mounted on the anti-disengagement block 19, penetrating the support plate 6. A locking tooth 16 is provided at the upper end of the guide post 18, which engages with the ratchet teeth on the ratchet 5. An elastic element is provided on the portion of the guide post 18 between the support plate 6 and the locking tooth 16. When the eccentric fastening wheel 4 rotates to the locking position, the ratchet 5 also rotates synchronously. Under the elastic force of the locking spring 17, the guide post 18 and the locking tooth 16 at the top move upward, causing the locking tooth 16 to automatically engage with the groove of the ratchet teeth on the ratchet 5.

[0024] Furthermore, the elastic element is a locking spring 17, and the locking spring 17 is movably sleeved on the guide post 18 at the part between the support plate 6 and the locking tooth 16.

[0025] Furthermore, the driving component is a drive motor 21 horizontally positioned in a through slot on the lower surface of the card body 1. A gear 22 is mounted on the end of the output shaft of the drive motor 21, and a rack 20 meshing with the gear 22 is mounted on the lower surface of the guide rail body 13. The output shaft of the drive motor 21 drives the gear 22 to rotate, and the gear 22 meshes with the rack 20 fixedly mounted on the guide rail body 13. Utilizing the principle of meshing transmission, the rotational motion of the gear 22 is converted into linear motion of the card body 1 along the rack 20.

[0026] Furthermore, the quick-release wheel assembly consists of a wheel frame 7 mounted on the locking block 9, with rollers 8 rotatably mounted on the wheel frame 7 via bearings and a rotating shaft. The wheel frame 7 serves as a support, and the rollers 8 rotate smoothly via bearings and a rotating shaft. The entire wheel frame 7 is connected to the locking body 1 via the locking block 9.

[0027] Furthermore, the subway track robot fixing component is a robot mounting frame 14 set on the lower surface of the main body 1, and the robot mounting frame 14 has mounting holes 15. The robot mounting frame 14 is a frame structure with mounting holes 15, and is rigidly connected to the inspection robot body by standard fasteners such as bolts.

[0028] Furthermore, a handle 11 is provided on the fastening shaft 3. The handle 11 forms a force-saving lever, making the operation easier.

[0029] Furthermore, a grip 12 is provided on the throttle 11. The grip 12 is made of rubber or plastic and serves to prevent slipping, increase friction, and improve operating comfort.

[0030] The working principle of the guide rail clamp for a subway track inspection robot provided by this utility model is as follows: In use, align the quick-release wheel assembly's locking block 9 with the locking slot 23 on the main body 1 and insert it. Turn the handle 11 to rotate the fastening shaft 3, causing the eccentric fastening wheel 4 to rotate synchronously. During rotation, the outer edge of the eccentric fastening wheel 4 presses against the inclined surface of the fastening wedge 10. Due to the inclined surface design, the rotational motion of the eccentric wheel is converted into a vertically downward clamping force, firmly pressing the locking block 9 into the bottom of the locking slot 23, eliminating all gaps and achieving a rigid connection. When the eccentric fastening wheel 4 rotates to the locked position, the ratchet 5 also rotates synchronously. Under the elastic force of the locking spring 17, it pushes the guide... The column 18 and the locking tooth 16 at the top move upward, so that the locking tooth 16 automatically engages in the tooth groove of the ratchet on the ratchet 5, preventing it from reversing due to vibration, which would cause the eccentric fastening wheel 4 to loosen. The output shaft of the drive motor 21 drives the gear 22 to rotate. The gear 22 meshes with the rack 20 fixedly installed on the guide rail body 13. Using the meshing transmission principle, the rotational motion of the gear 22 is converted into the linear motion of the clamping body 1 along the rack 20. The robot mounting frame 14 is a frame structure with mounting holes 15, which is rigidly connected to the inspection robot body through standard fasteners such as bolts.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A guide rail clamp for a subway track inspection robot, comprising a guide rail body, characterized in that: The guide rail body is movably equipped with a corresponding locking body. The locking body is symmetrically equipped with quick-release wheel sets, each with a locking block and a fastening wedge. The locking body has symmetrically formed locking grooves that mate with the locking blocks. A fastening shaft is rotatably mounted on the side of the locking body via a fixing plate. An eccentric fastening wheel mates with the fastening wedges is mounted on the fastening shaft. The side of the fastening wedge facing the eccentric fastening wheel is inclined, and this inclined surface gradually extends from top to bottom towards the eccentric fastening wheel from the inside out. A ratchet secondary fixing assembly is mounted on the fastening shaft. A drive assembly mates with the guide rail body is mounted on the locking body. A subway track robot fixing assembly is mounted on the locking body.

2. The guide rail clamp for the subway track inspection robot according to claim 1, characterized in that: The ratchet secondary fixing assembly is a ratchet mounted on a fastening shaft. A support plate is provided on the side of the main body of the clamp. An anti-detachment block is movably mounted below the support plate. A guide post is vertically mounted on the anti-detachment block, penetrating the support plate. A locking tooth is provided at the upper end of the guide post, which engages with the ratchet teeth on the ratchet. An elastic element is provided on the part of the guide post between the support plate and the locking tooth.

3. The guide rail clamp for the subway track inspection robot according to claim 2, characterized in that: The elastic element is a locking spring, and the locking spring is movably sleeved on the guide post at the part between the support plate and the locking teeth.

4. The guide rail clamp for the subway track inspection robot according to claim 3, characterized in that: The drive assembly is a drive motor horizontally disposed in a through slot on the lower surface of the card body. The output shaft end of the drive motor is provided with a gear, and the lower surface of the guide rail body is provided with a rack that meshes with the gear.

5. The guide rail clamp for the subway track inspection robot according to claim 4, characterized in that: The quick-release wheel set is a wheel frame mounted on the locking block, and rollers are rotatably mounted on the wheel frame via bearings and a rotating shaft.

6. The guide rail clamp for the subway track inspection robot according to claim 5, characterized in that: The subway track robot fixing component is a robot mounting frame set on the lower surface of the card body, and the robot mounting frame has mounting holes.

7. The guide rail clamp for the subway track inspection robot according to claim 6, characterized in that: A throttle is provided on the fastening shaft.

8. The guide rail clamp for the subway track inspection robot according to claim 7, characterized in that: The throttle is equipped with a handle sleeve.

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