Special tool for replacing railroad sleeper
By designing specialized tools for components such as drive motors, lead screws, clamps, and casters, the problem of difficulty in replacing single sleepers due to their heavy weight was solved, enabling rapid sleeper replacement and ensuring the convenience and stability of the tools.
Patent Information
- Application Number
- CN202422845128.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-21
AI Technical Summary
In existing technology, a single sleeper weighs around 500 kilograms, making replacement time-consuming and labor-intensive, and preventing rapid replacement.
A specialized tool was designed, comprising components such as a drive motor, lead screw, clamping plate, cylinder, and casters. The drive motor drives the lead screw and threaded block to adjust the height of the clamping components, the cylinder drives the clamping plate to clamp the sleeper, and the casters are used to move the tool, ensuring stability and convenience.
It enables rapid replacement of sleepers, reduces the labor intensity of workers, improves the convenience and stability of tools, and enhances the overall strength of the device.
Smart Images

Figure CN223535531U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway sleeper replacement, and in particular to a special tool for replacing railway sleepers. Background Technology
[0002] Railway sleepers, also known as rail sleepers, are a type of railway component. They support the rails, maintain their position, and transfer the immense pressure from the rails to the track bed. They must possess a certain degree of flexibility and elasticity; being too stiff or too soft is undesirable. When a train passes, they can deform appropriately to cushion the pressure, but they must return to their original shape as much as possible afterward. Conventional railways require the replacement of a large number of sleepers annually, usually manually during maintenance "windows." Conventional railways use precast concrete Type II and Type III sleepers as the track bed, constructed of reinforced concrete. Each sleeper weighs approximately 500 kilograms, making replacement time-consuming and labor-intensive, hindering rapid sleeper replacement. Therefore, we propose a specialized tool for replacing railway sleepers to address these issues. Utility Model Content
[0003] The purpose of this utility model is to provide a special tool for replacing railway sleepers, which solves the problem that in the prior art, a single sleeper weighs about 500 kilograms, making replacement time-consuming and laborious, and unable to achieve rapid sleeper replacement.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a special tool for replacing railway sleepers, including a base, a connecting frame fixedly connected to one upper end of the base, a drive motor provided at the upper end of the connecting frame, a lead screw provided through and downward at the output end of the drive motor, a threaded block threadedly connected to the lead screw, and a connecting seat fixedly connected to one end of the threaded block.
[0005] Two clamping plates are provided below the connecting seat, and anti-slip pads are fixedly connected to the inner side of the clamping plates.
[0006] As a further description of the above technical solution: a third sliding groove is provided on the inner side of the connecting frame, and a third slider is fixedly connected to the other end of the threaded block, and the third slider is slidably connected inside the third sliding groove.
[0007] As a further description of the above technical solution: two first sliding grooves are provided below the connecting seat, and a first cylinder is provided at both ends of the connecting seat.
[0008] As a further description of the above technical solution: the extension end of the first cylinder is provided with a first slider that extends inward through the first slide groove, and the lower end of the first slider is fixedly connected to the clamping plate.
[0009] As a further description of the above technical solution: the inner two ends of the first slide groove are provided with a second slide groove, the two ends of the first slider are fixedly connected to the second slider, and the second slider is slidably connected inside the second slide groove.
[0010] As a further description of the above technical solution: universal wheels are provided at the four lower ends of the base, a second cylinder is provided at the upper center of the base, and a support seat is provided at the extended end of the second cylinder through the base downward.
[0011] As a further description of the above technical solution: a second rotating shaft is fixedly connected to one upper end of the base, a first rotating shaft is fixedly connected to the outer side of the connecting frame, and a connecting rod is rotatably connected to the first rotating shaft and the second rotating shaft.
[0012] This utility model has the following beneficial effects:
[0013] 1. Compared with the prior art, this special tool for replacing railway sleepers can adjust the height of the threaded block and clamping assembly by setting a drive assembly and a lead screw assembly, which can move the clamped railway sleeper. At the same time, the cylinder assembly and the slider assembly can make the clamping plate clamp the sleeper, thereby realizing its quick replacement, improving the convenience and practicality of the entire tool, and reducing the labor intensity of the workers.
[0014] 2. Compared with the existing technology, this special tool for replacing railway sleepers can be easily moved by workers by setting universal wheels. At the same time, the support components can ensure the stability of the device during use, and the connecting rod components can support the device and improve its overall strength.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a schematic diagram of the overall structure of a special tool for replacing railway sleepers according to the present invention;
[0018] Figure 2 This is a schematic diagram of the clamping plate structure of a special tool for replacing railway sleepers according to the present invention.
[0019] Figure 3 for Figure 1 A schematic diagram of the structure of A in the middle;
[0020] Figure 4This is a side view of a special tool for replacing railway sleepers according to the present invention.
[0021] Legend:
[0022] 1. Drive motor; 2. Connecting frame; 3. Base; 4. Caster wheel; 5. Lead screw; 6. Clamping plate; 7. Connecting seat; 8. Anti-slip pad; 9. First slide groove; 10. First cylinder; 11. First slider; 12. Second slide groove; 13. Second slider; 14. Third slide groove; 15. Third slider; 16. Threaded block; 17. First rotating shaft; 18. Second cylinder; 19. Connecting rod; 20. Second rotating shaft; 21. Support seat. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] Reference Figure 1-4 This utility model provides an embodiment of a special tool for replacing railway sleepers, including a base 3. A connecting frame 2 is fixedly connected to one upper end of the base 3. A drive motor 1 is provided at the upper end of the connecting frame 2. A lead screw 5 is provided through and downward at the output end of the drive motor 1. By starting the drive motor 1, the lead screw 5 can be rotated. A threaded block 16 is threadedly connected to the lead screw 5. A connecting seat 7 is fixedly connected to one end of the threaded block 16. Under the action of the threaded connection, the threaded block 16 can drive the connecting seat 7 to move, thereby enabling the clamping assembly to be height adjusted, which facilitates the movement of the sleeper and improves the convenience of the device.
[0025] Two clamping plates 6 are provided below the connecting base 7. Anti-slip pads 8 are fixedly connected to the inner side of the clamping plates 6. A third sliding groove 14 is opened on the inner side of the connecting frame 2. A third slider 15 is fixedly connected to the other end of the threaded block 16. The third slider 15 is slidably connected inside the third sliding groove 14. By setting the third slider 15 and the third sliding groove 14, the stability of the threaded block 16 during lifting can be ensured.
[0026] Two first slide grooves 9 are provided below the connecting seat 7. A first cylinder 10 is provided at both ends of the connecting seat 7. The extension end of the first cylinder 10 passes through the first slide groove 9 and is provided with a first slider 11. The lower end of the first slider 11 is fixedly connected to the clamping plate 6. By activating the first cylinder 10, the first slider 11 can be driven to slide inside the first slide groove 9, thereby driving the two clamping plates 6 to move relative to each other, thereby realizing the clamping operation of the sleeper. The internal anti-slip pad 8 can improve its anti-slip ability.
[0027] The inner sides of the first slide groove 9 are provided with second slide grooves 12. The two ends of the first slider 11 are fixedly connected to the second slider 13. The second slider 13 is slidably connected inside the second slide groove 12. Under the action of the second slider 13 and the second slide groove 12, the stability of the first slider 11 during sliding can be ensured, and the stability of clamping can be improved.
[0028] The base 3 is equipped with casters 4 at four ends at the bottom. The base 3 is equipped with a second cylinder 18 at the top center. The extension end of the second cylinder 18 passes through the base 3 and is provided with a support seat 21. The casters 4 at the bottom allow the staff to move the entire device easily. Activating the second cylinder 18 can drive the support seat 21 to move downward, replacing the casters 4 to support the device and ensuring the stability of the device during use.
[0029] A second rotating shaft 20 is fixedly connected to one end of the base 3, and a first rotating shaft 17 is fixedly connected to the outside of the connecting frame 2. A connecting rod 19 is rotatably connected to the first rotating shaft 17 and the second rotating shaft 20. By setting the first rotating shaft 17, the second rotating shaft 20 and the connecting rod 19, a triangular support can be formed to improve the overall strength and stability of the device.
[0030] Working principle: When in use, the device is moved to a suitable position by the universal wheels 4 at the bottom. Then, the first cylinders 10 at both ends of the connecting seat 7 are activated, which drives the first slider 11 and the clamping plate 6 to move relative to each other, thereby positioning and clamping both ends of the railway sleeper. The internal anti-slip pads 8 can improve its anti-slip performance. After clamping, the drive motor 1 at the top is activated, which causes the lead screw 5 to rotate. Under the action of the threaded connection, the threaded block 16 drives the clamping assembly to move, thereby lifting the sleeper. The staff can then move the entire device to the designated position for replacement, thus improving the practicality and convenience of the device.
[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A special tool for replacing railway sleepers, comprising a base (3), characterized in that, A connecting frame (2) is fixedly connected to one end of the base (3). A drive motor (1) is provided at the upper end of the connecting frame (2). A lead screw (5) is provided through the output end of the drive motor (1) and extends downward. A threaded block (16) is threadedly connected to the lead screw (5). A connecting seat (7) is fixedly connected to one end of the threaded block (16). Two clamping plates (6) are provided below the connecting seat (7), and anti-slip pads (8) are fixedly connected to the inner side of the clamping plates (6).
2. A special tool for replacing railway sleepers according to claim 1, characterized in that, The inner side of the connecting frame (2) is provided with a third sliding groove (14), and the other end of the threaded block (16) is fixedly connected to a third slider (15), which is slidably connected inside the third sliding groove (14).
3. A special tool for replacing railway sleepers according to claim 1, characterized in that, Two first sliding grooves (9) are provided below the connecting seat (7), and a first cylinder (10) is provided at both ends of the connecting seat (7).
4. A special tool for replacing railway sleepers according to claim 3, characterized in that, The extension end of the first cylinder (10) passes through the first slide groove (9) and is provided with a first slider (11), the lower end of the first slider (11) being fixedly connected to the clamping plate (6).
5. A special tool for replacing railway sleepers according to claim 4, characterized in that, The first slide groove (9) has a second slide groove (12) at both ends of its inner side. The first slider (11) is fixedly connected to the second slider (13) at both ends. The second slider (13) is slidably connected inside the second slide groove (12).
6. A special tool for replacing railway sleepers according to claim 1, characterized in that, The base (3) is provided with casters (4) at its four lower ends, and a second cylinder (18) is provided at the upper middle part of the base (3). The extension end of the second cylinder (18) passes through the base (3) and is provided with a support seat (21) downward.
7. A special tool for replacing railway sleepers according to claim 1, characterized in that, A second rotating shaft (20) is fixedly connected to one upper end of the base (3), and a first rotating shaft (17) is fixedly connected to the outer side of the connecting frame (2). A connecting rod (19) is rotatably connected to the first rotating shaft (17) and the second rotating shaft (20).
Citation Information
Cited By
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