Concrete sleeper hoist for subway track construction
By designing a concrete sleeper lifting device with self-locking clamping and anti-rotation functions, the problems of low efficiency and instability of wire rope lifting were solved, achieving efficient and precise sleeper lifting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY FIRST GROUP CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-16
AI Technical Summary
In existing technologies, steel wire ropes are prone to deformation when hoisting concrete sleepers, the rope threading process is cumbersome, and the efficiency is low. Furthermore, the sleepers are prone to rotation, displacement, or inaccurate positioning during the hoisting process.
A concrete sleeper lifting device for subway track construction was designed. It uses components such as a main crossbeam, sleeper blocks, sleeper lifting clamps, and clamping mechanism. Combining the lever principle and electromagnetic adsorption, it achieves self-locking clamping and anti-rotation functions to ensure stable lifting of sleepers.
It improves hoisting efficiency, prevents sleepers from rotating and shifting, ensures accurate positioning, and solves the problems of wire rope deformation and cumbersome rope threading.
Smart Images
Figure CN224362401U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of track construction technology, specifically a concrete sleeper lifting device for subway track construction. Background Technology
[0002] Rail engineering is a comprehensive field involving the planning, design, construction, and maintenance of rail-based transportation infrastructure such as railways and urban rail transit. Rail engineering is a core component of the national transportation network, and its technological development directly affects transportation efficiency, safety, and people's livelihood.
[0003] Railway construction and maintenance are crucial links in ensuring the safe and stable operation of railways, covering the entire process from line construction to daily maintenance. Among them, concrete sleeper lifting equipment is a key tool for lifting concrete sleepers during railway construction and maintenance. Usually, steel wire ropes are used for lifting. However, this method can cause the steel wire ropes to deform over a long period of time, and the rope threading is cumbersome and inefficient. Furthermore, during lifting, the sleepers are prone to rotation, displacement, or inaccurate placement. To solve the above technical problems, we have designed a concrete sleeper lifting equipment for subway track construction. Utility Model Content
[0004] The purpose of this utility model is to provide a concrete sleeper lifting tool for subway track construction, which has the advantages of self-locking clamping mechanism and anti-rotation design. It solves the problems of steel wire rope deformation during long-term hoisting, cumbersome rope threading, low efficiency, and the sleepers being prone to rotation, displacement, or inaccurate placement during hoisting.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a concrete sleeper lifting device for subway track construction, comprising a main crossbeam and sleeper blocks. Reinforcing plates are fixedly connected to both the upper and lower sides of the main crossbeam. A first bolt is installed through the rear side of the main crossbeam. A sleeper lifting clamp is movably fitted onto the surface of the first bolt. Sleeper anti-tipping clamps are fixedly connected to both sides of the inner cavity of the main crossbeam. A clamping mechanism is provided on the surface of the main crossbeam. A hook is movably installed on the top of the surface of the sleeper lifting clamp. The clamping mechanism includes an installation frame, which is fixedly installed on the surface of the main crossbeam. A second bolt is installed through the surface of the hook.
[0006] Preferably, a lifting nut is fixedly connected to the front side of the hook, and a locking nut is fixedly connected to the front side of the main crossbeam.
[0007] Preferably, positioning clamps are fixedly connected to both the front and rear sides of the sleeper lifting clamp, and a thrust sleeve is fixedly installed on the surface of the sleeper lifting clamp, with the thrust sleeve movably sleeved on the surface of the first bolt.
[0008] Preferably, an electromagnet is fixedly connected to the top of the crossbeam reinforcing plate, a connecting plate is fixedly installed in the inner cavity of the mounting frame via a rotating shaft, a magnetic block is fixedly installed on the surface of the connecting plate, and a mounting plate is fixedly connected to the bottom of the connecting plate.
[0009] Preferably, there are several connecting plates and mounting plates, and positioning blocks are installed through each of the two mounting plates on opposite sides.
[0010] Preferably, reinforcing ribs are fixedly connected to both sides of the connecting plate, and reinforcing rods are fixedly connected to both the upper and lower sides of the mounting frame.
[0011] Preferably, the surface of the sleeper block has holes, and the surface of the positioning clamp plate has anti-slip texture.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This utility model, through the cooperation of a main crossbeam, a first bolt, a locking nut, a sleeper lifting clamp, a sleeper, a clamping mechanism, a sleeper anti-tipping clamp, a hole, a positioning clamp, a hook, an electromagnet, a mounting frame, a connecting plate, a magnetic block, a mounting plate, a positioning clip, a thrust sleeve, a second bolt, and a lifting nut, can stably lift sleepers. In use, the lifting equipment pulls the sleeper lifting clamp upwards via the hook, allowing the clamp to hold the sleeper using leverage. During clamping, the clamp also drives the positioning clamp to hold the sleeper, facilitating the lifting and movement of the sleeper. Furthermore, the electromagnet can be released from its attraction to the magnetic block, allowing the mounting plate to use its weight to engage the positioning clip into the hole, thus positioning the sleeper and preventing it from detaching. Attached Figure Description
[0014] Figure 1 This is a three-dimensional view of the structure of this utility model;
[0015] Figure 2 This is a perspective view of a partial structure clamping mechanism of this utility model;
[0016] Figure 3 This is a perspective view of a partial structure of the sleeper hoisting clamp of this utility model;
[0017] Figure 4 This is a perspective view of a partial structure of the hook of this utility model.
[0018] In the diagram: 1. Main crossbeam; 2. First bolt; 3. Locking nut; 4. Sleeper lifting clamp; 5. Crossbeam reinforcing plate; 6. Sleeper block; 7. Clamping mechanism; 8. Sleeper anti-tipping clamp; 9. Hole; 10. Positioning clamp plate; 11. Hook; 12. Electromagnet; 13. Mounting frame; 14. Connecting plate; 15. Magnetic block; 16. Mounting plate; 17. Positioning block; 18. Thrust sleeve; 19. Second bolt; 20. Lifting nut. Detailed Implementation
[0019] Please see Figures 1-4 A concrete sleeper lifting device for subway track construction includes a main crossbeam 1 and sleeper blocks 6. Reinforcing plates 5 are fixedly connected to both the upper and lower sides of the main crossbeam 1. A first bolt 2 is installed through the rear side of the main crossbeam 1. A sleeper lifting clamp 4 is movably fitted onto the surface of the first bolt 2. Anti-tipping clamps 8 are fixedly connected to both sides of the inner cavity of the main crossbeam 1. A clamping mechanism 7 is provided on the surface of the main crossbeam 1. A hook 11 is movably installed on the top of the surface of the sleeper lifting clamp 4. The clamping mechanism 7 includes an installation frame 13, which is fixedly installed on the surface of the main crossbeam 1. A second bolt 19 is installed through the surface of the hook 11. By setting the reinforcing plates 5, the stability of the main crossbeam 1 connection can be increased. Through the cooperation of the first bolt 2 and the locking nut 3, it is easy to install the sleeper lifting clamp 4 into the main crossbeam 1, and also facilitates the clamping operation of the sleeper lifting clamp 4.
[0020] Please see Figure 1 and Figure 4 The front side of the hook 11 is fixedly connected to the lifting nut 20, and the front side of the main crossbeam 1 is fixedly connected to the locking nut 3. Through the cooperation of the lifting nut 20 and the second bolt 19, the hook 11 can be connected to the sleeper lifting clamp 4 so as to carry out the lifting operation of the equipment.
[0021] Please see Figure 1 and Figure 3 Positioning clamps 10 are fixedly connected to both the front and rear sides of the sleeper lifting clamp 4. A thrust sleeve 18 is fixedly installed on the surface of the sleeper lifting clamp 4. The thrust sleeve 18 is movably sleeved on the surface of the first bolt 2. By setting the positioning clamps 10, the clamping area of the sleeper lifting clamp 4 can be increased, and the clamping force of the sleeper lifting clamp 4 can also be increased. By setting the thrust sleeve 18, the sleeper lifting clamp 4 can be prevented from sliding during use.
[0022] Please see Figure 1 and Figure 2An electromagnet 12 is fixedly connected to the top of the crossbeam reinforcing plate 5. A connecting plate 14 is fixedly installed in the inner cavity of the mounting frame 13 via a rotating shaft. A magnetic block 15 is fixedly installed on the surface of the connecting plate 14. A mounting plate 16 is fixedly connected to the bottom of the connecting plate 14. By setting the connecting plate 14, the connection between the connecting plate 14 and the mounting plate 16 can be strengthened to prevent the mounting plate 16 from separating from the connecting plate 14. Through the cooperation of the electromagnet 12 and the magnetic block 15, the connecting plate 14 can be attracted and pulled to prevent the positioning block 17 from entering the hole 9 when not in use.
[0023] Please see Figure 1 and Figure 2 There are several connecting plates 14 and mounting plates 16, and positioning blocks 17 are installed through each of the opposite sides of the two mounting plates 16.
[0024] Please see Figure 1 and Figure 3 Both sides of the connecting plate 14 are fixedly connected with reinforcing ribs, and both the upper and lower sides of the mounting frame 13 are fixedly connected with reinforcing rods. By setting reinforcing rods, the stability of the connection between the mounting frame 13 and the main crossbeam 1 can be improved, so as to prevent the mounting frame 13 from falling off the main crossbeam 1.
[0025] Please see Figure 1 and Figure 3 The surface of the sleeper block 6 has holes 9, and the surface of the positioning clamp 10 has anti-slip texture. The main crossbeam 1, the sleeper anti-tipping clamp 8, the crossbeam reinforcing plate 5, the sleeper lifting clamp 4, the hook 11 and the positioning clamp 10 are all made of 16Mn steel. By setting anti-slip texture, the anti-slip property of the positioning clamp 10 can be increased, thereby increasing the clamping force of the positioning clamp 10.
[0026] In use, the user connects the equipment to the hoisting equipment via hook 11. The user then operates the hoisting equipment to move the equipment above the sleeper, and then moves the equipment downwards until it is positioned on the sleeper. During hoisting, the sleeper anti-tipping clamp 8 positions the sleeper block 6 to prevent it from tipping over. Simultaneously, the user pulls the two sleeper hoisting clamps 4 to ensure the sleeper is fully inside the anti-tipping clamp 8. Once the sleeper is fully inside the anti-tipping clamp 8, the hoisting equipment releases the equipment via hook 11. The equipment is lifted, and the hook 11 will lift the sleeper lifting clamp 4 upward, so that the sleeper lifting clamp 4 can clamp the sleeper through the lever principle. When clamping, the user turns off the electromagnet 12, so that the mounting plate 16 can drive the positioning block 17 into the hole 9 by its weight, so that it can clamp and position the sleeper block 6 during lifting. At the same time, the user taps to fully insert the positioning block 17 into the hole 9, so as to prevent the sleeper from slipping out of the sleeper anti-tipping clamp 8 if the positioning block 17 is not fully inserted into the hole 9.
[0027] In summary, the concrete sleeper lifting device used in this subway track construction, through the cooperation of the main crossbeam 1, the first bolt 2, the locking nut 3, the sleeper lifting clamp 4, the crossbeam reinforcing plate 5, the sleeper block 6, the clamping mechanism 7, the sleeper anti-tipping clamp 8, the hole 9, and the positioning clamp 10, solves the problems of deformation of steel wire ropes during long-term lifting, cumbersome rope threading, low efficiency, and easy rotation, displacement, or inaccurate placement of sleepers during lifting.
Claims
1. A concrete sleeper lifting device for subway track construction, comprising a main crossbeam (1) and sleeper blocks (6), characterized in that: The main crossbeam (1) is fixedly connected to the upper and lower sides with crossbeam reinforcing plates (5). The rear side of the main crossbeam (1) is through-installed with a first bolt (2). The surface of the first bolt (2) is movably fitted with a sleeper lifting clamp (4). The two sides of the inner cavity of the main crossbeam (1) are fixedly connected with sleeper anti-tipping clamps (8). The surface of the main crossbeam (1) is provided with a clamping mechanism (7). The top of the surface of the sleeper lifting clamp (4) is movably installed with a hook (11). The clamping mechanism (7) includes an installation frame (13). The installation frame (13) is fixedly installed on the surface of the main crossbeam (1). The surface of the hook (11) is through-installed with a second bolt (19).
2. The concrete sleeper lifting device for subway track construction according to claim 1, characterized in that: The front side of the hook (11) is fixedly connected to a lifting nut (20), and the front side of the main crossbeam (1) is fixedly connected to a locking nut (3).
3. A concrete sleeper lifting device for subway track construction according to claim 1, characterized in that: Positioning clamps (10) are fixedly connected to both the front and rear sides of the sleeper hoisting clamp (4). A thrust sleeve (18) is fixedly installed on the surface of the sleeper hoisting clamp (4). The thrust sleeve (18) is movably sleeved on the surface of the first bolt (2).
4. A concrete sleeper lifting device for subway track construction according to claim 1, characterized in that: An electromagnet (12) is fixedly connected to the top of the crossbeam reinforcing plate (5), a connecting plate (14) is fixedly installed in the inner cavity of the mounting frame (13) through a rotating shaft, a magnetic block (15) is fixedly installed on the surface of the connecting plate (14), and a mounting plate (16) is fixedly connected to the bottom of the connecting plate (14).
5. A concrete sleeper lifting device for subway track construction according to claim 4, characterized in that: The number of connecting plates (14) and mounting plates (16) is several, and positioning blocks (17) are installed through each of the opposite sides of the two mounting plates (16).
6. A concrete sleeper lifting device for subway track construction according to claim 4, characterized in that: The connecting plate (14) is fixedly connected to both sides with reinforcing ribs, and the mounting frame (13) is fixedly connected to both the upper and lower sides with reinforcing rods.
7. A concrete sleeper lifting device for subway track construction according to claim 1, characterized in that: The surface of the sleeper block (6) is provided with holes (9), and the surface of the positioning clamp (10) is provided with anti-slip texture.