Track panel bolt fastening device

By designing a rail bolt fastening device, and utilizing the coordinated work of components such as slide rails, sliding plates, and cylinders, the rapid and precise fastening and loosening of rail bolts is achieved. This solves the problem of low efficiency in manual fastening in existing technologies and improves the efficiency and quality of railway track construction and maintenance.

CN224186536UActive Publication Date: 2026-05-01HENAN JUDING MACHINERY EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN JUDING MACHINERY EQUIPMENT CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In existing technologies, the tightening of track bolts mainly relies on manual hand-held tightening devices, which makes it difficult to achieve fast and accurate tightening and loosening, resulting in a decline in the efficiency and quality of railway track construction and maintenance, and also poses safety hazards.

Method used

A rail panel bolt fastening device was designed, comprising an adjustment component and a support component. Through the coordinated work of a slide rail, a sliding plate, a bidirectional telescopic cylinder, a drive motor, and a fastening head, the device enables rapid and precise fastening and loosening of bolts. The cooperation of a guide block and a guide wheel ensures stable movement and positioning of the device on the rail panel.

Benefits of technology

It improves the efficiency and quality of railway track construction and maintenance, reduces the labor intensity of workers, significantly improves operational efficiency and safety, and is suitable for large-area track bolt tightening operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of track panel bolt fastening, in particular to a track panel bolt fastening device which comprises a bottom plate and a push rod. The top end of the bottom plate comprises an adjusting assembly used for adjusting the fastening device, the bottom end of the bottom plate is provided with a supporting assembly used for auxiliary supporting, the adjusting assembly comprises a sliding rail, the sliding rail is arranged at the top end of the bottom plate in a rectangular distribution mode, a sliding plate is slidably connected to the interior of the sliding rail, and a locking block is connected to the sliding plate through a buckle. The left side of the top end of the bottom plate is fixedly connected with a push rod. The bolt position is further accurately aligned, the sliding rail provides accurate guiding and stable supporting for the sliding plate, the sliding plate transmits power of the two-way telescopic air cylinder to the bolt fastening tool, and through cooperative work of the sliding rail, the two-way telescopic air cylinder and the bolt fastening tool, rapid and accurate fastening and loosening of the track panel bolt can be achieved; and the efficiency and quality of railway track construction and maintenance are improved, and remarkable economic benefits and social benefits are achieved.
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Description

Rail bolt fastening device Technical Field

[0001] This utility model relates to the field of track bolt fastening technology, and in particular to a track bolt fastening device. Background Technology

[0002] As an important mode of modern transportation, the construction and maintenance of railways are of paramount importance. In the laying and daily maintenance of railway tracks, the tightening of track bolts is a key process. The quality of the tightening of track bolts directly affects the stability, safety, and smoothness of train operation. With the continuous development of railway construction, the requirements for the efficiency and quality of track construction and maintenance are also increasing. Therefore, fastening devices are needed to strengthen and reinforce the tracks.

[0003] Currently, most bolt tightening of rail panels is done manually using hand-held tightening devices. Manual tightening makes it difficult to precisely control the tightening torque. Excessive torque may damage components such as elastic washers, while insufficient torque fails to meet the specified torque requirements, resulting in insecure track connections and safety hazards. Furthermore, the lack of adjustment components prevents adjustments based on the location of different bolts, hindering the rapid and precise tightening and loosening of rail panel bolts and reducing the efficiency and quality of railway track construction and maintenance.

[0004] Therefore, the bolt tightening of the track panels is mostly done manually using hand-held tightening devices, which lack adjustment components and cannot achieve fast and accurate tightening and loosening of the track panel bolts, thus reducing the efficiency and quality of railway track construction and maintenance. Therefore, a track panel bolt tightening device can be designed. Summary of the Invention

[0005] To address the problem that bolt tightening of rail panels is mostly done manually using hand-held tightening devices, which lack adjustment components and cannot achieve rapid and accurate tightening and loosening of rail panel bolts, thus reducing the efficiency and quality of railway track construction and maintenance, a rail panel bolt tightening device is proposed.

[0006] The technical solution of this utility model is as follows: a rail bolt fastening device, including a base plate and a push rod; the top of the base plate includes an adjusting component for adjusting the fastening device, and the bottom of the base plate is provided with a supporting component for auxiliary support. The adjusting component includes a slide rail, which is rectangularly distributed on the top of the base plate. A sliding plate is slidably connected inside the slide rail, and a locking block is connected to the sliding plate by a buckle. A bidirectional telescopic cylinder is provided at the middle position of the top of the sliding plate, and a push rod is fixedly connected to the left side of the top of the base plate.

[0007] Preferably, the telescopic end of the bidirectional telescopic cylinder is connected to a guide block, and a housing is installed on both sides of the guide block. A drive motor is installed inside the housing, and an electric telescopic rod is installed at the middle position of the top of the housing. The telescopic end of the electric telescopic rod is connected to the drive motor.

[0008] Preferably, the output end of the drive motor inside the housing is connected to a fastening head, and the fastening head is slidably connected inside the housing.

[0009] Preferably, pressure plates are installed on both sides of the bottom end of the fastening head, and mounting blocks are slidably connected to both sides of the slide rail.

[0010] Preferably, the support assembly includes fixing ears, which are disposed on both sides of the bottom end of the base plate, and there are two sets of fixing ears, with connecting rods connecting the fixing ears.

[0011] Preferably, guide wheels are rotatably connected to both sides of the connecting rod, and the guide wheels are located below the base plate.

[0012] Preferably, a clamping plate is slidably connected to the outer side of the connecting rod, and fixing ears are provided on both sides of the clamping plate.

[0013] Preferably, a fastening spring is fixedly connected to the opposite surface of the clamping plate, and a clamping plate is fixedly connected to the opposite side of the fastening spring.

[0014] The beneficial effects of this utility model are as follows: By moving the slide plate within the slide rail, the fastening device is moved, thereby adjusting its position according to the lateral spacing of the rail bolts. By activating the cylinder, the telescopic ends on both sides extend or retract synchronously, pushing the machine box to move laterally, further accurately aligning the bolt positions. The slide rail provides precise guidance and stable support for the slide plate. The slide plate transmits the power of the bidirectional telescopic cylinder to the bolt fastening tool, achieving accurate positioning of the bolt fastening tool. Through the coordinated work of these three components, the rail bolts can be fastened and loosened quickly and accurately, improving the efficiency and quality of railway track construction and maintenance, while reducing the labor intensity of workers, resulting in significant economic and social benefits. Attached Figure Description

[0015] Figure 1 shows a first three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 shows a cross-sectional three-dimensional structural diagram of this utility model;

[0017] Figure 3 shows a second three-dimensional structural schematic diagram of this utility model;

[0018] Figure 4 shows a bottom-view perspective view of the three-dimensional structure of this utility model;

[0019] Figure 5 shows a partial three-dimensional structural diagram of the adjustment component of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Push rod; 301. Slide rail; 302. Slide plate; 303. Bidirectional telescopic cylinder; 304. Guide block; 305. Machine box; 306. Electric telescopic rod; 307. Fastening head; 308. Pressure plate; 309. Mounting block; 401. Fixing ear; 402. Connecting rod; 403. Guide wheel; 404. Clamping plate; 405. Fastening spring; 406. Clamping plate. Detailed Implementation

[0021] Please refer to Figures 1-5. This utility model provides an embodiment of a rail bolt fastening device, which includes a base plate 1 and a push rod 2. The top of the base plate 1 includes an adjusting component for adjusting the fastening device, and the bottom of the base plate 1 is provided with a support component for auxiliary support. The adjusting component includes a slide rail 301, which is rectangularly distributed on the top of the base plate 1. A slide plate 302 is slidably connected inside the slide rail 301, and a locking block is connected to the slide plate 302 by a buckle. A bidirectional telescopic cylinder 303 is provided at the middle position of the top of the slide plate 302, and the push rod 2 is fixedly connected to the left side of the top of the base plate 1.

[0022] Please refer to Figures 2-3 and 5. In this embodiment, the telescopic end of the bidirectional telescopic cylinder 303 is connected to a guide block 304. Both sides of the guide block 304 are equipped with a housing 305, and a drive motor is installed inside the housing 305. An electric telescopic rod 306 is installed at the middle position of the top of the housing 305, and the telescopic end of the electric telescopic rod 306 is connected to the drive motor. The output end of the drive motor inside the housing 305 is connected to a fastening head 307, which is slidably connected inside the housing 305. Pressure plates 308 are installed on both sides of the bottom end of the fastening head 307, and mounting blocks 309 are slidably connected on both sides of the slide rail 301.

[0023] The bidirectional telescopic cylinder 303 pushes the guide block 304 to move along the slide rail 301 through its telescopic movement, achieving preliminary positioning of the rail bolts. The bidirectional movement of the cylinder 303 allows the device to adapt to different track gauges or bolt spacing adjustments, significantly improving its applicability. When the electric telescopic rod 306 extends or retracts, the drive motor moves up and down, causing the fastening head 307 to move closer to or away from the rail bolts. The pressure plate 308 at the bottom of the fastening head 307 presses against the rail surface during bolt tightening. The track panel surface effectively suppresses track panel displacement caused by bolt rotation, ensuring that the fastening accuracy is controlled within the millimeter-level error range. The mounting block 309 can slide along the slide rail 301 to fix the installation position of the entire device. A locking mechanism enables rapid fixing of the entire device's installation position, ensuring the relative positional accuracy between the device and the track panel. This is particularly suitable for efficient positioning and repetitive operations in batch operation scenarios, significantly improving construction efficiency and ensuring accurate relative positioning between the device and the track panel, facilitating batch operations.

[0024] Please refer to Figure 4. In this embodiment, the support assembly includes fixing ears 401, which are disposed on both sides of the bottom end of the base plate 1. There are two sets of fixing ears 401, and a connecting rod 402 connects the fixing ears 401. Guide wheels 403 are rotatably connected to both sides of the connecting rod 402, and the guide wheels 403 are disposed below the base plate 1. A clamping plate 404 is slidably connected to the outer side of the connecting rod 402, and the fixing ears 401 are disposed on both sides of the clamping plate 404. A fastening spring 405 is fixedly connected to the opposite side surface of the clamping plate 404, and a clamping plate 406 is fixedly connected to the opposite side of the fastening spring 405.

[0025] When the rail bolt fastening device needs to be moved, the guide wheel 403 can roll on the rail of the rail panel. Utilizing its rotatable connection, the device can move flexibly along the rail panel direction, allowing it to quickly reach different bolt fastening positions. The fixing ears 401 on both sides of the clamping plate 404 limit its movement. The fastening spring 405 and the clamping plate 406 connected to one side of the clamping plate 404 can adaptively adjust according to the actual width of the rail panel. When the rail width changes, the clamping plate 406 is compressed, and the fastening spring 405 is compressed or extended, causing the clamping plate 406 to fit tightly against the side of the rail, thus firmly securing the device on the rail and preventing displacement during bolt fastening. The guide wheel 403 allows the rail bolt fastening device to move easily on the rail panel, significantly reducing the time and manpower required for device transfer compared to traditional manual handling or rigid support devices. This device significantly improves operational efficiency, especially for large-area rail bolt tightening operations. The guide wheels 403 allow the rail bolt tightening device to move easily on the rails. Compared to traditional manual handling or rigid support devices, it greatly reduces the time and labor costs required for device transfer, significantly improving operational efficiency. It is particularly suitable for large-area rail bolt tightening operations. The fixing ears 401 are symmetrically arranged on both sides of the bottom end of the base plate 1 and connected by the connecting rod 402 to form a stable support structure. This can evenly distribute the load above the base plate 1 and avoid tilting or deformation caused by single-point force. It is especially suitable for high-frequency vibration scenarios during rail bolt tightening. The guide wheels 403 on both sides of the connecting rod 402 directly contact the rail or support surface, forming rolling support points. Compared to traditional sliding friction, rolling contact can reduce wear and further improve support rigidity, ensuring that the device remains stable during the tightening process.

[0026] When tightening track bolts, first, place the tightening device stably on the track. The guide wheel 403 slides along the track, adjusting the device to the target bolt position. Once the predetermined work point is reached, the clamping plate 404 slides onto the connecting rod 402. Simultaneously, the track compresses the tightening spring 405. Under the rebound force of the tightening spring 405, the clamping plate 406 forms a ring-like clamp on both sides of the track. The contact surface of the clamping plate 406 is made of anti-slip rubber, providing reliable grip while avoiding damage to the track surface, thus completing the initial positioning and fixing of the device. After initially fixing the device position, loosen the locking block on the sliding plate 302. According to the track bolt spacing, slide the sliding plate 302 along the slide rail 301 to adjust the lateral position of the bidirectional telescopic cylinder 303. After aligning with the bolt arrangement direction, lock the locking block using the buckle. Adjust the position of the sliding mounting block 309 on both sides of the slide rail 301 for auxiliary positioning. Activate the bidirectional telescopic cylinder 303. The telescopic end pushes the guide block 304 to move along the slide rail 301, so that the two side boxes 305 are aligned with the bolts on both sides of the rail panel. The electric telescopic rod 306 is activated, pushing the fastening head 307 to move vertically downward along the inside of the box 305 until the fastening head 307 fits the bolt head. The pressure plate 308 descends with the fastening head 307, closely adhering to the surface of the rail panel, providing stable support and preventing the bolt from shaking during tightening. The electric telescopic rod 306 continues to apply pressure, and the fastening head 307 is rotated and tightened by the drive motor inside the existing box 305. When it is necessary to adjust its position, the fastening spring 405 of the clamping plate 404 is released, the clamping plate 406 is released from the rail, and the guide wheel 403 slides to the position of the next set of bolts, and is re-clamped and fixed. At the same time, if the surface of the rail panel is uneven, the fastening spring 405 can adaptively adjust the pressure of the clamping plate 406 to ensure stable support of the device. The mounting block 309 cooperates with the rail panel structure to achieve precise alignment.

Claims

1. A track bolt fastening device, comprising a base plate (1) and a push rod (2); characterized in that: The top of the base plate (1) includes an adjustment component for adjusting the fastening device. The bottom of the base plate (1) is provided with a support component for auxiliary support. The adjustment component includes a slide rail (301). The slide rail (301) is rectangularly distributed at the top of the base plate (1). The slide rail (301) is slidably connected to a slide plate (302). A locking block is connected to the slide plate (302) by a buckle. A bidirectional telescopic cylinder (303) is provided at the middle position of the top of the slide plate (302). A push rod (2) is fixedly connected to the left side of the top of the base plate (1).

2. The track bolt fastening device according to claim 1, characterized in that: The telescopic end of the bidirectional telescopic cylinder (303) is connected to a guide block (304). Both sides of the guide block (304) are equipped with a housing (305), and a drive motor is installed inside the housing (305). An electric telescopic rod (306) is installed at the middle position of the top of the housing (305), and the telescopic end of the electric telescopic rod (306) is connected to the drive motor.

3. The track bolt fastening device according to claim 2, characterized in that: The output end of the drive motor inside the housing (305) is connected to a fastening head (307), and the fastening head (307) is slidably connected inside the housing (305).

4. The track bolt fastening device according to claim 3, characterized in that: Pressure plates (308) are installed on both sides of the bottom end of the fastening head (307), and mounting blocks (309) are slidably connected to both sides of the slide rail (301).

5. The track bolt fastening device according to claim 1, characterized in that: The support assembly includes fixing ears (401), which are located on both sides of the bottom end of the base plate (1), and there are two sets of fixing ears (401). A connecting rod (402) connects the fixing ears (401).

6. The track bolt fastening device according to claim 5, characterized in that: Both sides of the connecting rod (402) are rotatably connected to guide wheels (403), and the guide wheels (403) are located below the base plate (1).

7. The track bolt fastening device according to claim 5, characterized in that: A clamping plate (404) is slidably connected to the outside of the connecting rod (402), and fixing ears (401) are provided on both sides of the clamping plate (404).

8. The track bolt fastening device according to claim 7, characterized in that: A fastening spring (405) is fixedly connected to the opposite side surface of the clamping plate (404), and a clamping plate (406) is fixedly connected to the opposite side of the fastening spring (405).