Rail fastener loosening detection positioning device

Abstract

The utility model relates to track maintenance equipment technical field discloses a track fastener loosening detection positioning device, including the maintenance car support plate, the utility model discloses a drive motor no.

Description

Technical Field

[0001] This utility model relates to the field of track maintenance equipment technology, and in particular to a track fastener loosening detection and positioning device. Background Technology

[0002] Railway rail fasteners are components used to connect rails and sleepers on railway tracks. Their function is to secure the rails to the sleepers, maintain track gauge, and prevent longitudinal and lateral movement of the rails relative to the sleepers. When trains pass by, they continuously impact the rails, causing vibrations. The bolts, nuts, and elastic clips on the fasteners are prone to loosening due to prolonged exposure to high-frequency vibrations and impacts. In severe cases, this can lead to shaking, breakage, detachment, or loss, posing significant safety hazards. Therefore, regular inspection of rail fasteners is necessary.

[0003] In existing technologies, traditional devices rely heavily on visual observation, such as fastener misalignment, or manual feel, such as wrench turning, to determine whether fasteners are loose. However, these methods cannot quantify torque values ​​and may misjudge slight looseness as normal or fail to detect hidden looseness due to visual obstruction. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a track fastener loosening detection and positioning device.

[0005] This utility model is achieved by the following technical solution: a track fastener loosening detection and positioning device, including a maintenance vehicle support plate, a torque positioning component is provided on the top of the maintenance vehicle support plate, and a drive component is provided on the bottom of the maintenance vehicle support plate.

[0006] The torque positioning assembly includes a drive motor, the output end of which is fixedly connected to a bidirectional threaded rod. A threaded slider is threadedly connected to the outer wall of the bidirectional threaded rod. A support shaft is rotatably connected to the end of the bidirectional threaded rod away from the drive motor. A driven plate is fixedly connected to the bottom of the threaded slider. A guide groove is formed on the surface of the maintenance vehicle support plate. The outer wall of the driven plate is slidably connected to the inner wall of the guide groove. A limit plate is rotatably connected to the surface of the bidirectional threaded rod. A support plate is fixedly connected to the end of the limit plate away from the bidirectional threaded rod. A drive shaft is fixedly connected to the top of the support plate. The second drive motor has a threaded rod fixedly connected to its output end. A threaded slider is threadedly connected to the outer wall of the threaded rod. A limit housing is fixedly connected to the outer wall of the threaded slider. An adjusting plate is slidably connected to the inner wall of the limit housing. A T-shaped groove is formed on the surface of the driven plate. A T-shaped slider is slidably connected to the inner wall of the T-shaped groove. The outer wall of the T-shaped slider is fixedly connected to the surface of the adjusting plate. A positioning clamping plate is fixedly connected to the bottom of the adjusting plate. A torque motor device is fixedly connected to the bottom of the limit housing. A positioning block is fixedly connected to the end of the limit housing near the limit plate.

[0007] As a further improvement to the above solution, the bottom of the drive motor is fixedly connected to the top of the maintenance vehicle support plate, the bottom of the support shaft is fixedly connected to the top of the maintenance vehicle support plate, the bottom of the limiting plate is fixedly connected to the top of the maintenance vehicle support plate, and the outer wall of the positioning block is slidably connected to the surface of the limiting plate.

[0008] As a further improvement to the above solution, two threaded sliders are provided, and the two threaded sliders are symmetrically arranged with the limiting plate as the center. Two driven plates are provided, and the two driven plates are symmetrically arranged with the limiting plate as the center. Two adjusting plates are provided, and the two adjusting plates are symmetrically arranged with the limiting plate as the center. Two positioning blocks are provided, and the two positioning blocks are symmetrically arranged with the limiting plate as the center.

[0009] Using the above technical solution, the second drive motor at the top of the support plate is activated, and its output end drives the threaded rod to rotate. The second threaded slider, which is threadedly connected to the threaded rod, will drive the limiting shell to rise and fall longitudinally until the positioning clamping plate below the limiting shell approaches the longitudinal height of the target fastener.

[0010] As a further improvement to the above solution, the drive assembly includes a protective housing, which is fixedly connected to the top of the maintenance vehicle support plate. A third drive motor is fixedly connected to the top of the maintenance vehicle support plate. A motor rotating rod is fixedly connected to the output end of the third drive motor. A drive gear is fixedly connected to the outer wall of the motor rotating rod, and a transmission belt is meshed with the outer wall of the drive gear.

[0011] As a further improvement to the above solution, a driven gear is meshed with the end of the transmission belt away from the drive gear, a drive rod is fixedly connected to the inner wall of the driven gear, a drive wheel is fixedly connected to the end of the drive rod away from the driven gear, and a connecting shaft is rotatably connected to the outer wall of the drive rod, with the top of the connecting shaft fixedly connected to the bottom of the maintenance vehicle support plate.

[0012] As a further improvement to the above solution, there are two drive wheels, which are symmetrically arranged with the driven gear as the center, and there are two connecting shafts, which are symmetrically arranged with the driven gear as the center.

[0013] As a further improvement to the above solution, the surface of the maintenance vehicle support plate is provided with a clearance groove, the outer wall of the transmission belt contacts the inner wall of the clearance groove, a second connecting shaft is fixedly connected to the bottom of the maintenance vehicle support plate, a driven rod is rotatably connected to the inner wall of the second connecting shaft, driven wheels are fixedly connected to both ends of the driven rod, and a control console is fixedly connected to the top of the maintenance vehicle support plate.

[0014] Using the above technical solution, the operator sends a movement command through the control panel on top of the maintenance vehicle support plate to start the third drive motor fixed on top of the maintenance vehicle support plate. At this time, the output end of the third drive motor drives the motor rotating rod to rotate synchronously, which in turn drives the drive gear fixed on the outer wall of the motor rotating rod to rotate, completing the initial power output. Since the outer wall of the drive gear is meshed with a transmission belt, and the transmission belt passes through the avoidance groove opened on the surface of the maintenance vehicle support plate, the avoidance groove is used to avoid frictional interference between the transmission belt and the maintenance vehicle support plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes a second drive motor at the top of the support plate, whose output drives a threaded rod to rotate. A second threaded slider, threaded to the rod, causes the limiting housing to rise and fall longitudinally until the positioning clamping plate below the limiting housing approaches the longitudinal height of the target fastener. During this rising and falling process, the adjusting plate on its inner wall slides synchronously along the T-shaped groove on the driven plate surface via a T-shaped slider, ensuring the adjusting plate maintains a stable lateral position. Once the height is adjusted to the correct position, the positioning clamping plate at the bottom of the adjusting plate precisely fits against both sides of the target fastener, completing the clamping and positioning of the track base. Then, by activating the first drive motor in the torque positioning assembly, its output drives the bidirectional threaded rod to rotate around the inner wall of the support shaft. Because the threaded slider and the bidirectional threaded rod are threadedly connected, and the driven plate at the bottom of the threaded slider is limited by the guide groove and can only slide laterally along the groove, the two threaded sliders will move synchronously towards or away from each other around the limiting plate. This will drive the subsequent clamping structure associated with the driven plate to adjust laterally until it approaches the lateral position of the target fastener. At the same time, the symmetrically arranged driven plates will drive the symmetrically arranged adjusting plates to slide towards the inner wall of the limiting shell. Thus, the precise positioning of the track base is achieved through the cooperation of the two. Then, by restarting the second drive motor, the second drive motor will slide through the threaded... The second slider drives the limiting shell, which in turn drives the torque motor device. Its output end applies a preset torque to the fastener held by the positioning clamping plate. The torque sensor built into the torque motor device detects the actual reaction force. If the reaction force reaches the preset standard, it means that the fastener torque is normal and there is no looseness. If the reaction force is lower than the preset standard, it is determined that the fastener is loose. At the same time, combined with the real-time position information of the maintenance vehicle support plate, the positioning record of the loose fastener is completed. This eliminates the limitations of subjective judgment in traditional devices, realizes quantitative detection, and significantly reduces the false detection rate and missed detection rate.

[0017] This invention sends a movement command via a control panel on top of the maintenance vehicle support plate, activating a drive motor three fixed to the top of the support plate. At this time, the output of drive motor three drives the motor rotating rod to rotate synchronously, which in turn drives the drive gear fixed to the outer wall of the motor rotating rod to rotate, completing the initial power output. Since a transmission belt is meshed with the outer wall of the drive gear, and the transmission belt passes through a clearance groove on the surface of the maintenance vehicle support plate (the clearance groove is used to prevent frictional interference between the transmission belt and the maintenance vehicle support plate), the rotational force of the drive gear is transmitted through the transmission belt to the driven gear meshing at the end furthest from the drive gear, causing the driven gear to rotate synchronously. A drive rod is fixedly connected to the inner wall of the driven gear, and the drive rod begins to rotate under the drive of the driven gear. Meanwhile, the outer wall of the drive rod is connected to the bottom of the maintenance vehicle support plate via connecting shaft one. Connecting shaft one is used to limit the radial displacement of the drive rod and ensure rotational stability. A drive wheel is fixedly connected to the end of the drive rod furthest from the driven gear. Therefore, the rotation of the drive rod directly drives the drive wheel to rotate. Combined with the structural feature of having two drive wheels symmetrically distributed around the driven gear, the two drive wheels rotate synchronously, providing stable forward or backward power for the device. Simultaneously, the driven rod and the driven wheels at both ends of the driven rod, rotatably connected to the bottom of the maintenance vehicle support plate via connecting shaft two, roll synchronously with the movement of the drive wheel, assisting in supporting the overall weight of the device, reducing the load on the drive wheel, and further ensuring the stability of the device during movement. Ultimately, the maintenance vehicle support plate drives the entire device to move precisely to the area of ​​the track fastener to be inspected. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the torsion positioning component of this utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the torque positioning component of this utility model;

[0021] Figure 4 This is a schematic diagram of the back structure of the torque positioning component of this utility model;

[0022] Figure 5 This is a schematic diagram of the drive component structure of this utility model;

[0023] Figure 6 This is a cross-sectional structural diagram of the drive component of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Repair vehicle support plate; 2. Torque positioning assembly; 201. Drive motor one; 202. Bidirectional threaded rod; 203. Threaded slider; 204. Support shaft; 205. Driven plate; 206. Guide groove; 207. Limiting plate; 208. Support plate; 209. Drive motor two; 210. Threaded slider two; 211. Limiting housing; 212. Adjusting plate; 213. T-shaped groove; 214. T-shaped slider; 215. Positioning clamping plate; 2 16. Torque motor device; 217. Threaded rod; 218. Positioning block; 3. Drive assembly; 301. Protective housing; 302. Drive motor three; 303. Motor rotating rod; 304. Drive gear; 305. Transmission belt; 306. Driven gear; 307. Drive rod; 308. Drive wheel; 309. Connecting shaft one; 310. Clearance groove; 311. Driven rod; 312. Driven wheel; 313. Connecting shaft two; 314. Control console. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Example:

[0028] Please combine Figure 1-6 The track fastener loosening detection and positioning device of this embodiment includes a maintenance vehicle support plate 1, a torque positioning component 2 is provided on the top of the maintenance vehicle support plate 1, and a drive component 3 is provided on the bottom of the maintenance vehicle support plate 1.

[0029] Torque positioning assembly 2 includes a drive motor 201, a bidirectional threaded rod 202 fixedly connected to the output end of the drive motor 201, a threaded slider 203 threadedly connected to the outer wall of the bidirectional threaded rod 202, a support shaft 204 rotatably connected to the end of the bidirectional threaded rod 202 away from the drive motor 201, a driven plate 205 fixedly connected to the bottom of the threaded slider 203, a guide groove 206 formed on the surface of the maintenance vehicle support plate 1, the outer wall of the driven plate 205 slidably connected to the inner wall of the guide groove 206, a limit plate 207 rotatably connected to the surface of the bidirectional threaded rod 202, a support plate 208 fixedly connected to the end of the limit plate 207 away from the bidirectional threaded rod 202, and a drive motor fixedly connected to the top of the support plate 208. A threaded rod 217 is fixedly connected to the output end of the drive motor 209. A threaded slider 210 is threadedly connected to the outer wall of the threaded rod 217. A limit housing 211 is fixedly connected to the outer wall of the threaded slider 210. An adjusting plate 212 is slidably connected to the inner wall of the limit housing 211. A T-shaped groove 213 is opened on the surface of the driven plate 205. A T-shaped slider 214 is slidably connected to the inner wall of the T-shaped groove 213. The outer wall of the T-shaped slider 214 is fixedly connected to the surface of the adjusting plate 212. A positioning clamping plate 215 is fixedly connected to the bottom of the adjusting plate 212. A torque motor device 216 is fixedly connected to the bottom of the limit housing 211. A positioning block 218 is fixedly connected to one end of the limit housing 211 near the limit plate 207.

[0030] The bottom of the drive motor 201 is fixedly connected to the top of the maintenance vehicle support plate 1, the bottom of the support shaft 204 is fixedly connected to the top of the maintenance vehicle support plate 1, the bottom of the limiting plate 207 is fixedly connected to the top of the maintenance vehicle support plate 1, and the outer wall of the positioning block 218 is slidably connected to the surface of the limiting plate 207.

[0031] Two threaded sliders 203 are provided, symmetrically arranged around the limiting plate 207. Two driven plates 205 are also provided, symmetrically arranged around the limiting plate 207. Two adjusting plates 212 are also provided, symmetrically arranged around the limiting plate 207. Two positioning blocks 218 are also provided, symmetrically arranged around the limiting plate 207. By activating the drive motor 201 in the torque positioning assembly 2, its output end drives the bidirectional threaded rod 202 to rotate around the inner wall of the support shaft 204. Since the threaded sliders 203 are threadedly connected to the bidirectional threaded rod 202, and the driven plate 205 at the bottom of the threaded slider 203 is limited by the guide groove 206 and can only slide laterally along the groove, the two threaded sliders 203 will move synchronously towards or in opposite directions around the limiting plate 207, thereby causing the subsequent clamping structure associated with the driven plate 205 to adjust laterally until it approaches the lateral position of the target fastener.

[0032] The drive assembly 3 includes a protective housing 301, which is fixedly connected to the top of the maintenance vehicle support plate 1. A drive motor 302 is fixedly connected to the top of the maintenance vehicle support plate 1. A motor rotating rod 303 is fixedly connected to the output end of the drive motor 302. A drive gear 304 is fixedly connected to the outer wall of the motor rotating rod 303. A transmission belt 305 is meshed with the outer wall of the drive gear 304.

[0033] The drive belt 305 is engaged with a driven gear 306 at the end away from the drive gear 304. A drive rod 307 is fixedly connected to the inner wall of the driven gear 306. A drive wheel 308 is fixedly connected to the end of the drive rod 307 away from the driven gear 306. A connecting shaft 309 is rotatably connected to the outer wall of the drive rod 307. The top of the connecting shaft 309 is fixedly connected to the bottom of the maintenance vehicle support plate 1.

[0034] There are two drive wheels 308, which are symmetrically arranged with the driven gear 306 as the center. There are also two connecting shafts 309, which are symmetrically arranged with the driven gear 306 as the center.

[0035] The surface of the maintenance vehicle support plate 1 is provided with a clearance groove 310. The outer wall of the transmission belt 305 contacts the inner wall of the clearance groove 310. The bottom of the maintenance vehicle support plate 1 is fixedly connected to a connecting shaft 313. The inner wall of the connecting shaft 313 is rotatably connected to a driven rod 311. Both ends of the driven rod 311 are fixedly connected to driven wheels 312. The top of the maintenance vehicle support plate 1 is fixedly connected to a control console 314. The outer wall of the drive rod 307 is connected to the bottom of the maintenance vehicle support plate 1 through a connecting shaft 309. The connecting shaft 309 is used to limit the radial displacement of the drive rod 307 to ensure rotational stability. The end of the drive rod 307 away from the driven gear 306 is fixedly connected to a drive wheel 308. Therefore, the rotation of the drive rod 307 directly drives the drive wheel 308 to rotate. Combined with the structural feature that there are two drive wheels 308 and they are symmetrically distributed with the driven gear 306 as the center, the two drive wheels 308 rotate synchronously to provide stable forward or backward power for the device.

[0036] The implementation principle of the track fastener loosening detection and positioning device in this application embodiment is as follows: The operator sends a movement command through the control console 314 on the top of the maintenance vehicle support plate 1, which starts the drive motor 302 fixed on the top of the maintenance vehicle support plate 1. At this time, the output end of the drive motor 302 drives the motor rotating rod 303 to rotate synchronously, thereby driving the drive gear 304 fixed on the outer wall of the motor rotating rod 303 to rotate, completing the initial power output. Since the outer wall of the drive gear 304 is meshed with the transmission belt 305, and the transmission belt 305 passes through the avoidance groove 310 opened on the surface of the maintenance vehicle support plate 1, the avoidance groove 310 is used to avoid frictional interference between the transmission belt 305 and the maintenance vehicle support plate 1. The rotational force of the drive gear 304 is transmitted through the transmission belt 305 to the driven gear 306 meshed at the end away from the drive gear 304, driving the driven gear 306 to rotate synchronously. The inner wall of the driven gear 306 is fixedly connected with the drive rod 307, and the drive rod 307 starts to rotate under the drive of the driven gear 306. Meanwhile, the outer wall of the drive rod 307 is connected to the bottom of the maintenance vehicle support plate 1 via a connecting shaft 309. The connecting shaft 309 is used to limit the radial displacement of the drive rod 307 and ensure rotational stability. The end of the drive rod 307 away from the driven gear 306 is fixedly connected to the drive wheel 308. Therefore, the rotation of the drive rod 307 directly drives the drive wheel 308 to rotate. Combined with the structural feature that there are two drive wheels 308 and they are symmetrically distributed with the driven gear 306 as the center, the two drive wheels 308 rotate synchronously, providing stable forward or backward power for the device. Meanwhile, the driven rod 311 and the driven wheels 312 at both ends of the driven rod 311, which are rotatably connected to the bottom of the maintenance vehicle support plate 1 via the connecting shaft 2 313, roll synchronously with the movement of the drive wheel 308, assisting in supporting the overall weight of the device, reducing the load on the drive wheel 308, and further ensuring the stability of the device during movement. Ultimately, the maintenance vehicle support plate 1 drives the entire device to move precisely to the area of ​​the track fastener to be inspected. Then, by starting the drive motor 209 at the top of the support plate 208, its output end drives the threaded rod 217 to rotate. The threaded slider 210, which is threadedly connected to the threaded rod 217, will drive the limiting shell 211 to rise and fall longitudinally until the positioning clamping plate 215 below the limiting shell 211 approaches the longitudinal height of the target fastener. During the rising and falling of the limiting shell 211, the adjusting plate 212 on its inner wall will slide synchronously along the T-shaped groove 213 on the surface of the driven plate 205 via the T-shaped slider 214, ensuring that the adjusting plate 212 always maintains a stable lateral position. Once the height is adjusted to the correct position, the positioning clamping plate 215 at the bottom of the adjusting plate 212 will precisely fit against both sides of the target fastener, completing the clamping and positioning of the track base. By activating the drive motor 201 in the torque positioning component 2, its output end drives the bidirectional threaded rod 202 to rotate around the inner wall of the support shaft 204.Since the threaded slider 203 is threadedly connected to the bidirectional threaded rod 202, and the driven plate 205 at the bottom of the threaded slider 203 is limited by the guide groove 206 and can only slide laterally along the groove, the two threaded sliders 203 will move synchronously towards or in opposite directions around the limiting plate 207, thereby driving the subsequent clamping structure associated with the driven plate 205 to adjust laterally until it approaches the lateral position of the target fastener. At the same time, the symmetrically arranged driven plates 205 will drive the symmetrically arranged adjusting plates 212 to slide towards the inner wall of the limiting shell 211, thereby completing the precise positioning of the track base through the cooperation of the two. Then, by restarting the drive motor 209, the drive motor 203 will be activated. Motor 209 drives limiting housing 211 via threaded slider 210, which in turn drives torque motor device 216. Its output end applies a preset torque to the fastener held by positioning clamping plate 215. The torque sensor built into torque motor device 216 detects the actual reaction force. If the reaction force reaches the preset standard, it indicates that the fastener torque is normal and there is no looseness. If the reaction force is lower than the preset standard, it is determined that the fastener is loose. At the same time, combined with the real-time position information of maintenance vehicle support plate 1, the positioning record of the loose fastener is completed. This eliminates the limitations of subjective judgment in traditional devices, realizes quantitative detection, and significantly reduces the false detection rate and missed detection rate.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A track fastener loosening detection and positioning device, characterized in that, It includes a maintenance vehicle support plate (1), the top of which is provided with a torque positioning component (2), and the bottom of which is provided with a drive component (3); The torque positioning assembly (2) includes a drive motor (201), the output end of which is fixedly connected to a bidirectional threaded rod (202). A threaded slider (203) is threadedly connected to the outer wall of the bidirectional threaded rod (202). A support shaft (204) is rotatably connected to the end of the bidirectional threaded rod (202) away from the drive motor (201). A driven plate (205) is fixedly connected to the bottom of the threaded slider (203). A guide groove (206) is provided on the surface of the maintenance vehicle support plate (1). The outer wall of the driven plate (205) is slidably connected to the inner wall of the guide groove (206). A limit plate (207) is rotatably connected to the surface of the bidirectional threaded rod (202). A support plate (208) is fixedly connected to the end of the limit plate (207) away from the bidirectional threaded rod (202). A drive motor (208) is fixedly connected to the top of the support plate (208). (209) The output end of the drive motor (209) is fixedly connected to a threaded rod (217). The outer wall of the threaded rod (217) is threadedly connected to a threaded slider (210). The outer wall of the threaded slider (210) is fixedly connected to a limiting shell (211). The inner wall of the limiting shell (211) is slidably connected to an adjusting plate (212). The surface of the driven plate (205) is provided with a T-shaped groove (213). The inner wall of the T-shaped groove (213) is slidably connected to a T-shaped slider (214). The outer wall of the T-shaped slider (214) is fixedly connected to the surface of the adjusting plate (212). The bottom of the adjusting plate (212) is fixedly connected to a positioning clamping plate (215). The bottom of the limiting shell (211) is fixedly connected to a torque motor device (216). The end of the limiting shell (211) near the limiting plate (207) is fixedly connected to a positioning block (218).

2. The track fastener loosening detection and positioning device as described in claim 1, characterized in that: The bottom of the drive motor (201) is fixedly connected to the top of the maintenance vehicle support plate (1), the bottom of the support shaft (204) is fixedly connected to the top of the maintenance vehicle support plate (1), the bottom of the limiting plate (207) is fixedly connected to the top of the maintenance vehicle support plate (1), and the outer wall of the positioning block (218) is slidably connected to the surface of the limiting plate (207).

3. The track fastener loosening detection and positioning device as described in claim 1, characterized in that: Two threaded sliders (203) are provided, and the two threaded sliders (203) are symmetrically arranged with the limiting plate (207) as the center. Two driven plates (205) are provided, and the two driven plates (205) are symmetrically arranged with the limiting plate (207) as the center. Two adjusting plates (212) are provided, and the two adjusting plates (212) are symmetrically arranged with the limiting plate (207) as the center. Two positioning blocks (218) are provided, and the two positioning blocks (218) are symmetrically arranged with the limiting plate (207) as the center.

4. The track fastener loosening detection and positioning device as described in claim 1, characterized in that: The drive assembly (3) includes a protective shell (301), which is fixedly connected to the top of the maintenance vehicle support plate (1). A drive motor (302) is fixedly connected to the top of the maintenance vehicle support plate (1). A motor rotating rod (303) is fixedly connected to the output end of the drive motor (302). A drive gear (304) is fixedly connected to the outer wall of the motor rotating rod (303). A transmission belt (305) is meshed with the outer wall of the drive gear (304).

5. The track fastener loosening detection and positioning device as described in claim 4, characterized in that: The drive belt (305) is connected to a driven gear (306) at one end away from the drive gear (304). A drive rod (307) is fixedly connected to the inner wall of the driven gear (306). A drive wheel (308) is fixedly connected to one end of the drive rod (307) away from the driven gear (306). A connecting shaft (309) is rotatably connected to the outer wall of the drive rod (307). The top of the connecting shaft (309) is fixedly connected to the bottom of the maintenance vehicle support plate (1).

6. The track fastener loosening detection and positioning device as described in claim 5, characterized in that: There are two drive wheels (308), which are symmetrically arranged with the driven gear (306) as the center. There are also two connecting shafts (309), which are symmetrically arranged with the driven gear (306) as the center.

7. The track fastener loosening detection and positioning device as described in claim 5, characterized in that: The surface of the maintenance vehicle support plate (1) is provided with a clearance groove (310). The outer wall of the transmission belt (305) is in contact with the inner wall of the clearance groove (310). The bottom of the maintenance vehicle support plate (1) is fixedly connected to a connecting shaft two (313). The inner wall of the connecting shaft two (313) is rotatably connected to a driven rod (311). Both ends of the driven rod (311) are fixedly connected to driven wheels (312). The top of the maintenance vehicle support plate (1) is fixedly connected to a control console (314).

Images