Steel rail locking and fastening device
Through the combined design of the rail transport frame and the fastening lock, the matching grooves and bolts of the wedge blocks are used to connect the rails to the rails, which solves the problem of single locking and preventing sliding deviation in rail transportation, and achieves stable transportation of the rails.
Patent Information
- Application Number
- CN202422628232.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-30
AI Technical Summary
In the prior art, it is difficult to achieve single locking and single rail unloading during rail transportation, and the existing devices are complex in structure and cumbersome in operation, so it is impossible to effectively prevent the rail from sliding or deviating during transportation.
The combined design of rail transport frame, fastening lock, wedge block, connecting bolt and locking bolt is adopted. The matching groove and bolt connection between the wedge block and the rail is achieved by achieving stable fixation of the rail, combining the guard plate and the middle support to prevent transverse offset.
It realizes stable fixation of the rails, prevents sliding and offset, is easy to disassemble and assemble, adapts to the fixing needs of different numbers of rails, and ensures safety and stability during transportation.
Smart Images
Figure CN223291367U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rail flatbed transportation, in particular to a rail locking and fastening device. Background Art
[0002] The manufacture of rails requires multiple processes, including high-temperature heat treatment, cooling, cutting, etc. The quality and strength of rails directly affect the safety performance of the railway. When transporting rails, cranes are needed to lift the rails onto special transport vehicles, and then they are pulled by locomotives. The transportation of rails needs to strictly comply with regulations and standards to ensure that the rails will not be deformed or damaged during transportation.
[0003] There are generally three methods for transporting rails: road transport, water transport and rail transport. Choose the appropriate transportation method according to the specific situation, use professional equipment for handling and fixing according to the specific situation, and strengthen safety facilities to prevent the rails from slipping.
[0004] In the prior art, for flatbed transportation of 500-meter rails, the commonly used method for locking rails is to lock and tighten multiple rails in a single layer. Clamps are installed on both sides of the rails, and clamping beams are installed between the clamps on both sides. This method cannot achieve single-rail locking and single-rail removal, and if the clamping beam is removed, the multiple rails are prone to sliding and causing damage. Another single-rail fastening device method is to use an auxiliary seat frame to achieve single-rail locking and fastening. This method has a larger and more complex device structure and is more cumbersome to operate. Utility Model Content
[0005] In order to solve the above problems, the present invention proposes a rail locking and fastening device for achieving single rail locking during track laying construction to more accurately solve the above problems.
[0006] The utility model is achieved through the following technical solutions:
[0007] The utility model proposes a rail locking and fastening device, comprising a rail transport frame, a plurality of fastening locks, a wedge block, a connecting bolt, a connecting plate, and a locking bolt. The rail transport frame is placed on the upper part of the rail transport seat. The rail transport frame comprises two end supports, a sub-beam, and a plurality of middle supports. The end supports are connected to the rail transport seat by connecting bolts and connecting plate bolts. The sub-beam is fixedly connected to the two end supports. The plurality of middle supports are arranged at the lower part of the sub-beam to limit the fastening locks and distinguish between steel bars. The fastening lock is placed on the upper part of the rail, and several fastening locks are placed at both ends of the middle support, abutting against the middle support and each other. The fastening lock includes a left fastener and a right fastener. The lower right part of the left fastener and the lower left part of the right fastener are provided with mirror-symmetrical through grooves. The through grooves of the left fastener and the right fastener match the rail head of the rail. The upper side of the through groove is an inclined side, and its slope is consistent with the slope of the wedge block. Screw holes are provided on the upper part of the left fastener and the right fastener, and the locking bolts connect the left fastener and the right fastener through the screw holes.
[0008] Furthermore, in the present invention, the number of the middle support is one.
[0009] Furthermore, the utility model has a lifting lug fixedly connected to the top of the auxiliary beam.
[0010] The utility model further provides guard plates on both sides of the end supports, the height of the guard plates being the same as the fastening locks, so as to prevent the end supports and the rails from being damaged due to sliding of the rails.
[0011] Furthermore, the material of the wedge block is one of Q235 steel, aluminum alloy and butyl rubber.
[0012] Beneficial effects of the utility model:
[0013] 1. The setting of the lifting lugs facilitates the transportation and installation of the locking and fastening device. Different numbers and positions of locking and fastening devices can be used according to actual situations.
[0014] 2. The squeezing force of the fastening lock on the rail and the wedge block allows the rail to be stably fixed on the locking and fastening device, making assembly and disassembly easy. At the same time, the contact between the guard plate, the middle support and the fastening lock prevents the rail from lateral displacement.
[0015] 3. When using 500-meter-long rails for fixing, use wedge blocks made of Q235 steel to ensure stable fastening without wearing the rails. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a front view of the overall structure of the utility model;
[0017] Figure 2 It is a side view of the overall structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the fastening lock structure in the utility model;
[0019] Figure 4 This is a front view of the right fastener in the present utility model;
[0020] Figure 5 This is a left view of the right fastener in the present utility model;
[0021] Figure 6 This is a front view of the left fastener in the present utility model;
[0022] Figure 7 It is a right side view of the left fastener in the present utility model.
[0023] In the figure, 1. Rail transport frame; 2. Fastening lock; 3. Wedge block; 4. Connecting bolt; 5. Connecting plate; 6. Locking bolt; 7. Rail transport seat; 8. Rail; 11. End support; 12. Subbeam; 13. Middle support; 14. Lifting eye; 111. Guard plate; 21. Left fastener; 22. Right fastener; 23. Through slot; 24. Screw hole. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0025] like Figure 1-7As shown, a rail locking and fastening device includes a rail transport frame 1, several fastening locks 2, a wedge block 3, a connecting bolt 4, a connecting plate 5, and a locking bolt 6. The rail transport frame 1 is placed on the upper part of the rail transport seat 7. The rail transport frame 1 includes two end supports 11, a subbeam 12, several middle supports 13 and a lifting lug 14. The end supports 11 are connected to the rail transport seat 7 by connecting bolts 4 and a connecting plate 5. The subbeam 12 is fixedly connected to the two end supports 11. The middle support 13 is arranged at the lower part of the subbeam 12. The number of the middle supports 13 is set according to the classification or batch number of the rails to limit the fastening locks 2 and distinguish the rails 8. The top of the subbeam 12 is fixedly connected with a lifting lug 14. Several fastening locks 2 are placed on the upper part of the rail 8. Several fastening locks 2 are placed on the middle support 13 The two ends are in contact with the middle support 13 and each other, and guard plates 111 are provided on both sides of the end support 11. The height of the guard plates 111 is the same as that of the fastening lock 2 to prevent the sliding of the rail from causing damage to the end support 11 and the rail 8. The fastening lock 2 includes a left fastener 21 and a right fastener 22. The lower right part of the left fastener 21 and the lower left part of the right fastener 22 are provided with mirror-symmetrical through grooves 23. The through grooves of the left fastener 21 and the right fastener 22 match the rail head of the rail 8. The upper edge of the through groove 23 is an inclined edge, and its slope is consistent with the slope of the wedge block. The upper part of the left fastener 21 and the right fastener 22 is provided with a screw hole 24, and the locking bolt 6 bolts the left fastener 21 and the right fastener 22 through the screw hole 24; the rail transport seat 7 and the rail 8 in the figure are prior art, which are used as the conditions for use of this application.
[0026] When 500 meters of rails are transported on a flatbed, the mass of the rails is very large. The wedge block 3 is made of Q235 steel. When the rail length is shorter, soft alloys such as aluminum alloy and hard rubber such as butyl rubber can be used to manufacture the wedge block 3. The lower part of the wedge block 3 needs to be polished to remove local protrusions and edges.
[0027] Working principle:
[0028] 1. Initial Preparation
[0029] Rail placement: First, place the rail 8 on the upper part of the rail transport seat 7. This is the basis of the entire installation process and provides an object for subsequent fastening operations.
[0030] The fastening locks are placed by placing a plurality of fastening locks 2 on both sides of the rail transport frame 1 and on the upper part of the rails 8. The fastening locks 2 here play a key role in directly fixing the rails in subsequent operations.
[0031] 2. Tighten the lock to initially fix the rail
[0032] The rail head is positioned. The left fastener 21 and the right fastener 22 in the fastening lock 2 cover the rail head of the rail 8 through their through slots 23. The shape of the through slots 23 matches the rail head of the rail 8. This design ensures that the rail 8 can be accurately positioned in the fastening lock 2.
[0033] Preliminarily tighten the locking bolts, first tighten the two lock bolts 6. This step makes the left fastener 21 and the right fastener 22 preliminarily fixed on the rail 8, providing a certain foundation for the subsequent insertion of the wedge block 3 and preventing the rail from shifting during subsequent operations.
[0034] 3. Wedge Insertion and Final Tightening
[0035] The wedge block 3 is inserted into the inclined edge of the upper portion of the through slot 23. Since the upper portion of the through slot 23 is inclined, its slope is consistent with that of the wedge block 3, which allows the wedge block 3 to be inserted smoothly. Furthermore, the tips of the wedge blocks 3 on both sides of the rail transport frame 1 are arranged relative to each other, ensuring that uniform pressure is applied to the rail 8 from both sides.
[0036] Finally, the rail is tightened and the locking bolt 6 is tightened, so that the wedge block 3 presses the rail 8. By tightening the locking bolt 6, the position of the wedge block 3 in the through groove 23 is fixed, and because the wedge block 3 cooperates with the inclined surface of the through groove 23, as the bolt is tightened, the wedge block 3 will generate an increasingly greater extrusion force on the rail 8, thereby tightly fixing the rail 8 on the locking and fastening device.
[0037] 4. Overall structure coordinated to prevent deviation
[0038] All components work together, and throughout the entire device, the guard plates 111, the middle support 13, and the fastening lock 2 are tightly connected. The guard plates 111 on either side of the end supports 11 prevent the rail from sliding and causing damage to the end supports 11 and the rail 8, while also limiting the lateral movement of the rail to a certain extent. The middle support 13 limits the fastening lock 2, which in turn secures the rail 8. The three components work together to prevent the rail 8 from lateral displacement, ensuring its stability during transportation.
[0039] Adjust according to the number of rails. If the number of rails is not enough to fill the rail transport seat 7, it is necessary to increase the number of middle supports 13 for limiting the position. This design ensures that no matter how many rails there are, the entire device can effectively fix the rails to prevent the rails from sliding or deflecting during transportation.
[0040] Some common faults that this device may encounter in railway transportation and their solutions include:
[0041] 1. Bolt fatigue failure. During long-term use, the bolts of the fastening device may fail due to repeated heavy load cycles when transporting 500 meters of rails, causing the bolts to break or lose preload. Bolts need to be replaced regularly to prevent accidents.
[0042] 2. Component wear: The moving parts of the rail locking and fastening device, such as splints and wedge blocks, may gradually wear out due to friction, affecting the fastening effect and service life of the device. Especially when transporting shorter rails, special attention should be paid when using butyl rubber wedge blocks. When using Q235 steel and aluminum alloy, they also need to be replaced regularly.
[0043] 3. Corrosion issues: Humidity and chemicals in the railway environment may cause corrosion of the metal components of the fastening device, thereby affecting its performance and reliability.
[0044] 4. Looseness: Due to vibration, temperature changes or improper maintenance, the various components of the fastening device may become loose and unable to effectively lock the rail. Referring to the above 500-meter rails, which are mostly used for laying in the northwest railway, special attention should be paid to the damage to the components caused by sand.
[0045] 5. Operational errors: Human operational errors may also cause failure of the fastening device. For example, over-tightening or improper installation may damage the device. Check the screwing length of each bolt before transportation.
[0046] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.
[0047] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.
Claims
1. A rail locking and fastening device, characterized in that: The invention comprises a rail transport frame (1), a plurality of fastening locks (2), a wedge block (3), a connecting bolt (4), a connecting plate (5), and a locking bolt (6). The rail transport frame (1) is placed on the upper part of the rail transport seat (7). The rail transport frame (1) comprises two end supports (11), a sub-beam (12), and a plurality of middle supports (13). The end supports (11) are connected to the rail transport seat (7) by means of connecting bolts (4) and a connecting plate (5). The sub-beam (12) is fixedly connected to the two end supports (11). The plurality of middle supports (13) are arranged at the lower part of the sub-beam (12) to limit the fastening locks (2) and distinguish between the rails (8). The plurality of fastening locks (2) are placed on the rails (8). The upper part of the middle support (13) is provided with a plurality of fastening locks (2), which are arranged at both ends of the middle support (13) and are in contact with the middle support (13) and each other. The fastening locks (2) include a left fastener (21) and a right fastener (22). The lower right part of the left fastener (21) and the lower left part of the right fastener (22) are provided with a mirror-symmetrical through groove (23). The through grooves of the left fastener (21) and the right fastener (22) match the rail head of the rail (8). The upper side of the through groove (23) is an inclined side, and its slope is consistent with the slope of the wedge block. The upper part of the left fastener (21) and the right fastener (22) is provided with a screw hole (24). The locking bolt (6) is connected to the left fastener (21) and the right fastener (22) through the screw hole (24).
2. A rail locking and fastening device according to claim 1, characterized in that: The number of the middle support (13) is one.
3. The rail locking and fastening device according to claim 1, characterized in that: A lifting lug (14) is fixedly connected to the top of the auxiliary beam (12).
4. The rail locking and fastening device according to claim 1, characterized in that: Guard plates (111) are provided on both sides of the end support (11). The height of the guard plates (111) is the same as that of the fastening lock (2) to prevent the end support (11) and the rail (8) from being damaged by sliding of the rail.
5. The rail locking and fastening device according to claim 1, characterized in that: The material of the wedge block (3) is one of Q235 steel, aluminum alloy and butyl rubber.