Automatic tensioner for goods binding chain of railway flatcar

Abstract

The utility model provides an automatic tensioner for a goods binding chain of a railway flatcar. Relates to the technical field of cargo transportation. The automatic tensioner for the goods binding chain of the railway flatcar comprises a base, a vertical plate is fixedly mounted at the top of the base, a hydraulic cylinder is fixedly mounted on one side of the vertical plate, a connecting block is fixedly mounted on an output rod of the hydraulic cylinder, and a first mounting block is fixedly mounted on one side of the connecting block; a tensioning wheel is rotatably mounted on the first mounting block, a fixing block is fixedly mounted at the top of the first mounting block, a same connecting rod is fixedly mounted between the inner walls of the two sides of the fixing block, a transverse plate is rotatably mounted on the connecting rod, a movable hole is formed in the transverse plate, and two rectangular blocks are fixedly mounted at the top of the transverse plate. The chain tensioning device has the advantages that the possibility of tooth disengagement between the chain and the tensioning wheel can be reduced, the chain can be better restrained, and the chain tensioning device is convenient to adjust during use.

Description

An automatic tensioner for cargo binding chains on railway flatcars Technical Field

[0001] This utility model relates to the field of cargo transportation technology, specifically to an automatic tensioner for cargo binding chains on railway flatcars. Background Technology

[0002] Railway flatcars are mainly used to transport large or heavy goods such as steel, timber, automobiles, and machinery. They can also be used with containers to transport other goods. They can transport a variety of types of goods to meet different needs. During the transportation of goods, for special goods that are bulky, have an unstable center of gravity, are irregularly shaped, or have sharp edges, high-strength chains with locks are required for reinforcement. Their tensile strength and wear resistance can withstand violent shaking during transportation. The chain needs to pass through the cargo fixing ring or special hook to form a rigid connection to prevent displacement and ensure the stability of the cargo. In order to maintain appropriate tension on the chain during use, reduce wear on the chain, and extend the service life of the chain, an automatic tensioner is usually required.

[0003] In traditional automatic tensioners, if the goods are suddenly moved and the chain becomes loose, teeth may skip or pins may come off between the chain and the automatic tensioner. This can affect the connection between the automatic tensioner and the chain, delaying the effectiveness of the automatic tensioner and affecting the stability and accuracy of subsequent chain transmission.

[0004] Therefore, it is necessary to provide a new automatic tensioner for the cargo binding chains of railway flatcars to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic tensioner for railway flatcar cargo binding chains that can reduce the possibility of chain slippage between the chain and the tensioning wheel, better control the chain, and is easy to adjust.

[0006] To solve the above-mentioned technical problems, the present utility model provides an automatic tensioner for railway flatcar cargo binding chains, comprising: a base, a vertical plate fixedly installed on the top of the base, a hydraulic cylinder fixedly installed on one side of the vertical plate, a connecting block fixedly installed on the output rod of the hydraulic cylinder, an installation block one fixedly installed on one side of the connecting block, a tensioning wheel rotatably installed on the installation block one, a fixing block fixedly installed on the top of the installation block one, a connecting rod fixedly installed between the inner walls of the two sides of the fixing block, a transverse plate rotatably installed on the connecting rod, a movable hole provided on the transverse plate, two rectangular blocks fixedly installed on the top of the transverse plate, a threaded rod two rotatably installed between the two rectangular blocks, a movable frame threadedly installed on the threaded rod two, the movable frame slidably installed in the movable hole, an installation block two fixedly installed on the bottom of the movable frame, a brake gear rotatably installed on the installation block two, a connecting frame fixedly installed on one side of the fixing block, a threaded rod one rotatably installed on the connecting frame, a brake block rotatably installed at one end of the threaded rod one, and the brake block slidably connected to one end of the transverse plate.

[0007] Preferably, a support block is fixedly installed on the top of the mounting block one, and the top of the support block is in contact with the bottom of the horizontal plate.

[0008] Preferably, a support frame is fixedly installed on the top of the base, and a U-shaped clamp is fixedly installed on the top of the support frame, the U-shaped clamp being fixedly connected to the hydraulic cylinder.

[0009] Preferably, a connecting rod is fixedly installed between the inner walls of the two sides of the movable hole, and the connecting rod is slidably connected to the movable frame.

[0010] Preferably, bolts are slidably mounted on both mounting block one and mounting block two, and nuts are threaded onto both bolts. The two nuts are in contact with the tops of mounting block one and mounting block two, respectively. The tension wheel and the brake gear are rotatably mounted on mounting block one and mounting block two, respectively.

[0011] Preferably, a square groove is provided on one side of the brake block, one end of the transverse plate is slidably installed in the square groove, a circular groove is provided on the side of the brake block away from the square groove, one end of the threaded rod is rotatably installed in the circular groove, an annular cavity is provided on the inner wall of the circular groove, a sleeve block is fixedly installed on one end of the threaded rod, and the sleeve block is rotatably installed in the annular cavity.

[0012] Preferably, the connecting frame has two transverse holes, and side blocks are fixedly installed on both sides of the brake block. The two side blocks are slidably installed in the two transverse holes respectively, and a circular block is fixedly installed at the ends of the two side blocks that are far apart from each other.

[0013] Compared with related technologies, the automatic tensioner for railway flatcar cargo binding chains provided by this utility model has the following advantages:

[0014] In this invention, the tension wheel and the chain are kept engaged. The tension of the chain can be automatically adjusted by the hydraulic cylinder to ensure that the chain is at a suitable tension. Manually rotating the first threaded rod can release the fixation of the transverse plate. The transverse plate drives the brake gear to rotate, ensuring that the connection between the tension wheel and the chain is not affected. The chain is clamped between the tension wheel and the brake gear, and the movement of the chain is restricted, thereby greatly preventing the chain from disengaging from the two and reducing the possibility of manual tooth skipping or pin detachment between the chain and the tension wheel. Rotating the second threaded rod can adjust the position of the brake gear, which facilitates the engagement of the brake gear with the chain and also makes it easier for the brake gear to adapt to different types of chains. Attached Figure Description

[0015] Figure 1 is a front view of the structure of this utility model;

[0016] Figure 2 is an enlarged schematic diagram of mounting block one and mounting block two shown in Figure 1;

[0017] Figure 3 is a side view of the present invention.

[0018] Figure 4 is a frontal sectional view of the present invention.

[0019] Figure 5 is an enlarged schematic diagram of mounting block one and mounting block two shown in Figure 4.

[0020] In the diagram: 1. Base; 2. Vertical plate; 3. Hydraulic cylinder; 4. Connecting block; 5. Mounting block one; 6. Tensioning wheel; 7. Fixing block; 8. Connecting rod; 9. Horizontal plate; 10. Movable hole; 11. Moving frame; 12. Mounting block two; 13. Brake gear; 14. Connecting frame; 15. Threaded rod one; 16. Brake block; 17. Rectangular block; 18. Threaded rod two; 19. Support block. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to Figures 1-5, where Figure 1 is a front view of the present invention; Figure 2 is an enlarged view of mounting block one and mounting block two shown in Figure 1; Figure 3 is a side view of the present invention; Figure 4 is a front sectional view of the present invention; and Figure 5 is an enlarged view of mounting block one and mounting block two shown in Figure 4. The automatic tensioner for the cargo binding chain of a railway flatcar includes: a base 1, a vertical plate 2 fixedly mounted on the top of the base 1, a hydraulic cylinder 3 fixedly mounted on one side of the vertical plate 2, a connecting block 4 fixedly mounted on the output rod of the hydraulic cylinder 3, a mounting block one 5 fixedly mounted on one side of the connecting block 4, a tensioning wheel 6 rotatably mounted on the mounting block one 5, a fixing block 7 fixedly mounted on the top of the mounting block one 5, a connecting rod 8 fixedly mounted between the inner walls of both sides of the fixing block 7, a transverse plate 9 rotatably mounted on the connecting rod 8, a movable hole 10 opened on the transverse plate 9, and a fixed... Two rectangular blocks 17 are fixedly installed, and a threaded rod 18 is rotatably installed between the two rectangular blocks 17. A movable frame 11 is threaded onto the threaded rod 18 and slidably installed in the movable hole 10. A mounting block 12 is fixedly installed at the bottom of the movable frame 11, and a brake gear 13 is rotatably installed on the mounting block 12. A connecting frame 14 is fixedly installed on one side of the fixed block 7, and a threaded rod 15 is rotatably installed on the connecting frame 14. A brake block 16 is rotatably installed at one end of the threaded rod 15 and slidably connected to one end of the transverse plate 9.

[0023] In order to support the horizontal plate 9 and increase its stability, in this method, a support block 19 is fixedly installed on the top of the mounting block 5, and the top of the support block 19 is in contact with the bottom of the horizontal plate 9.

[0024] To increase the stability of the hydraulic cylinder 3 installation, in this method, a support frame is fixedly installed on the top of the base 1, and a U-shaped clamp is fixedly installed on the top of the support frame, which is fixedly connected to the hydraulic cylinder 3.

[0025] In order to limit the movement tendency of the movable frame 11 and increase its stability, in this method, the same connecting rod is fixedly installed between the inner walls on both sides of the movable hole 10, and the connecting rod is slidably connected to the movable frame 11.

[0026] To facilitate the replacement of the tensioning wheel 6 and the brake gear 13, in this method, bolts are slidably installed on both mounting block 1 5 and mounting block 2 12, and nuts are threaded onto both bolts. The two nuts are in contact with the tops of mounting block 1 5 and mounting block 2 12 respectively, and the tensioning wheel 6 and the brake gear 13 are rotatably mounted on mounting block 1 5 and mounting block 2 12 respectively.

[0027] To ensure the stability of the connection between the threaded rod 15 and the brake block 16, and to reserve contact space for the connection between the brake block 16 and the transverse plate 9, in this method, a square groove is provided on one side of the brake block 16, one end of the transverse plate 9 is slidably installed in the square groove, a circular groove is provided on the side of the brake block 16 away from the square groove, one end of the threaded rod 15 is rotatably installed in the circular groove, an annular cavity is provided on the inner wall of the circular groove, and a sleeve block is fixedly installed on one end of the threaded rod 15, and the sleeve block is rotatably installed in the annular cavity.

[0028] In order to limit the movement direction of the brake block 16 and make the brake block 16 more stable, in this method, two transverse holes are opened on the connecting frame 14, and side blocks are fixedly installed on both sides of the brake block 16. The two side blocks are slidably installed in the two transverse holes respectively, and a circular block is fixedly installed at the ends of the two side blocks that are far apart from each other.

[0029] The working principle of the automatic tensioner for railway flatcar cargo binding chains provided by this utility model is as follows:

[0030] First, the threaded rod 15 needs to be rotated. When the threaded rod 15 moves to the right on the connecting frame 14, it will pull the brake block 16 to move at the same time. The brake block 16 will slide off the transverse plate 9, and the restriction on the right end of the transverse plate 9 will be released. Then, rotate the transverse plate 9 clockwise. The transverse plate 9 will drive the brake gear 13 to gradually move away from the tension wheel 6. Then, adjust the tension wheel 6 according to the position of the chain to ensure that the tension wheel 6 is located on one side of the chain and is engaged with the chain. Then, fix the base 1 in the predetermined position to ensure that the position of the entire tensioner is fixed.

[0031] Then rotate the horizontal plate 9 counterclockwise until the bottom of the horizontal plate 9 contacts the top of the support block 19, and the horizontal plate 9 is in a horizontal state. Then rotate the threaded rod 15 in the opposite direction to push the brake block 16 closer to the right end of the horizontal plate 9 and gradually fit it on the horizontal plate 9, and fix the position of the horizontal plate 9 again. At this time, the brake gear 13 is located on the other side of the chain. Then rotate the threaded rod 18, and the moving frame 11 will gradually move to the right on the threaded rod 18. Through the mounting block 12, the brake gear 13 will gradually move closer to the chain until the brake gear 13 also meshes with the chain, so that the chain is clamped between the tension wheel 6 and the brake gear 13, thereby preventing the chain from easily falling off the tension wheel 6.

[0032] Compared with related technologies, the automatic tensioner for railway flatcar cargo binding chains provided by this utility model has the following advantages:

[0033] In this invention, the tension wheel 6 is engaged with the chain. The hydraulic cylinder 3 can automatically adjust the chain tension to ensure that the chain is at a suitable tension. Manually rotating the threaded rod 15 can release the fixation of the transverse plate 9. The transverse plate 9 drives the brake gear 13 to rotate, ensuring that the connection between the tension wheel 6 and the chain is not affected. The chain is clamped between the tension wheel 6 and the brake gear 13, and the movement of the chain is restricted, thereby preventing the chain from disengaging from the two to a greater extent and reducing the possibility of manual tooth skipping or pin detachment between the chain and the tension wheel 6. Rotating the threaded rod 18 can adjust the position of the brake gear 13, which facilitates the engagement of the brake gear 13 with the chain and also makes it easier for the brake gear 13 to adapt to different types of chains.

[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, those skilled in the art who understand the principle of the above utility model can clearly understand the specific details of its power mechanism, power supply system and control system.

[0035] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic tensioner for cargo binding chains on railway flatcars, comprising a base, characterized in that, A vertical plate is fixedly installed on the top of the base. A hydraulic cylinder is fixedly installed on one side of the vertical plate. A connecting block is fixedly installed on the output rod of the hydraulic cylinder. An installation block one is fixedly installed on one side of the connecting block. A tensioning wheel is rotatably installed on the installation block one. A fixing block is fixedly installed on the top of the installation block one. The same connecting rod is fixedly installed between the inner walls of the two sides of the fixing block. A horizontal plate is rotatably installed on the connecting rod. A movable hole is opened on the horizontal plate. Two rectangular blocks are fixedly installed on the top of the horizontal plate. The same threaded rod two is rotatably installed between the two rectangular blocks. A movable frame is threadedly installed on the threaded rod two. The movable frame is slidably installed in the movable hole. An installation block two is fixedly installed on the bottom of the movable frame. A brake gear is rotatably installed on the installation block two. A connecting frame is fixedly installed on one side of the fixing block. A threaded rod one is rotatably installed on the connecting frame. A brake block is rotatably installed at one end of the threaded rod one. The brake block is slidably connected to one end of the horizontal plate.

2. The automatic tensioner for railway flatcar cargo binding chains according to claim 1, characterized in that, A support block is fixedly installed on the top of the mounting block one, and the top of the support block is in contact with the bottom of the horizontal plate.

3. The automatic tensioner for railway flatcar cargo binding chains according to claim 1, characterized in that, A support frame is fixedly installed on the top of the base, and a U-shaped clamp is fixedly installed on the top of the support frame. The U-shaped clamp is fixedly connected to the hydraulic cylinder.

4. The automatic tensioner for railway flatcar cargo binding chains according to claim 1, characterized in that, A common connecting rod is fixedly installed between the inner walls of the two sides of the movable hole, and the connecting rod is slidably connected to the movable frame.

5. The automatic tensioner for railway flatcar cargo binding chains according to claim 1, characterized in that, Bolts are slidably mounted on both mounting block one and mounting block two, and nuts are threaded onto both bolts. The two nuts are in contact with the tops of mounting block one and mounting block two, respectively. The tension wheel and the brake gear are rotatably mounted on mounting block one and mounting block two, respectively.

6. The automatic tensioner for railway flatcar cargo binding chains according to claim 1, characterized in that, A square groove is provided on one side of the brake block, and one end of the transverse plate is slidably installed in the square groove. A circular groove is provided on the side of the brake block away from the square groove. One end of the threaded rod is rotatably installed in the circular groove. An annular cavity is provided on the inner wall of the circular groove. A sleeve block is fixedly installed on one end of the threaded rod, and the sleeve block is rotatably installed in the annular cavity.

7. The automatic tensioner for railway flatcar cargo binding chains according to claim 1, characterized in that, The connecting frame has two transverse holes. Side blocks are fixedly installed on both sides of the brake block. The two side blocks are slidably installed in the two transverse holes respectively. A circular block is fixedly installed at the ends of the two side blocks that are far apart from each other.

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