Bogie limiting device

Abstract

The utility model discloses a bogie limiting device which is arranged in a track, and the upper surface of the limiting device is flush with the track. The limiting device is modularly designed and comprises a shell, an air cylinder, an air cylinder connecting plate and a stopping block, the air cylinder is fixed in the shell, the front end of the air cylinder is connected with the air cylinder connecting plate, the air cylinder connecting plate is movably connected with the tail end of the stopping block, the middle of the stopping block is fixed to the upper portion of the shell, and the front end of the stopping block tilts and is exposed to stop and limit the bogie. By means of the bogie limiting device, manual operation can be replaced, and labor force is released; the service life of the device is greatly prolonged; the safety is improved; matched use with automatic equipment is facilitated; the original track space is not occupied basically, the space can be given to other equipment and stations to be used to the maximum extent, and the space utilization rate is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of limit equipment, specifically relating to a bogie limit device. Background Technology

[0002] In railway freight car maintenance, especially when performing automated maintenance on bogies, automatic bogie limit switches are frequently used to ensure the safety of automated operations.

[0003] In existing depots, bogie limiters are mostly manually pushed and used in conjunction with wheel stoppers. Wheel stoppers are mainly made of rubber, but some are made of metal. They are shaped like shoes and have handles on the side. They are widely used and have high user acceptance.

[0004] The above-mentioned manual pushing method combined with wheel stop device limiting is operated as follows: When the personnel push the bogie to limit it, the personnel first push the bogie in the opposite direction in the forward direction of the bogie to slow it down. When it stabilizes, the personnel take the wheel stop device, bend over and place it at the front and rear ends of the wheels in the forward and backward directions of the bogie to limit it.

[0005] The above method of manually pushing the wheel in conjunction with a wheel stop has the following problems:

[0006] (1) Manual placement: In the process of continuous improvement of automation in the rail industry, manual placement of wheel stoppers is still used to limit the bogie. This has not freed people from repetitive physical labor to do more technical work, which is not conducive to the development of the industry.

[0007] (2) Short lifespan: The wheel stop is made of rubber and relies on its own elasticity to buffer the impact force of more than 6 tons. The wheel stop has a short lifespan and is a vulnerable part.

[0008] (3) Poor safety: When the production line is busy, the front and rear bogies often collide with each other, and the operators need to bend over to place the wheel stoppers, which can easily cause personnel injury accidents; moreover, the wheel stoppers are also prone to tipping over or tilting after placement, which can lead to more serious situations such as limit failure. In addition, sometimes automated equipment is also equipped with manual limit operation, which causes cross-operation and is more likely to cause more serious accident risks.

[0009] (4) Unable to meet the needs of automated operation: Due to the manual placement of wheel stoppers for limiting, the efficiency is low and cannot meet the high cycle time requirements of the current automation industry. Summary of the Invention

[0010] In view of the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a bogie limiting device.

[0011] The technical solution adopted by the present utility model to solve its technical problems is as follows:

[0012] A bogie limiting device, the bogie limiting device is placed in the track, and the upper surface of the limiting device is flush with the track; the limiting device is modularly designed and includes a housing, a cylinder, a cylinder connecting plate and a blocking block. A cylinder is fixed in the housing, the front end of the cylinder is connected to the cylinder connecting plate, the cylinder connecting plate is movably connected to the tail end of the blocking block, the middle part of the blocking block is fixed on the upper part of the housing, and the front end of the blocking block will tilt up and expose to stop and limit the bogie.

[0013] Further, the cylinder is a double-rod cylinder.

[0014] Further, the bogie limiting devices are arranged on both of the parallel tracks.

[0015] Further, the bottom of the cylinder is fixed to the bottom of the housing.

[0016] Further, the bottom of the cylinder and the cylinder connecting seat are connected together by screws; the tail end of the cylinder connecting seat is fixed on the pin shaft fixing seat through a pin shaft and a pin shaft retaining ring; the pin shaft fixing seat is fixed on the bottom of the housing.

[0017] Further, the front end of the blocking block will tilt up and expose to limit the bogie; a middle hole is provided in the middle part of the blocking block and is fixed on the upper part of the housing through a pin shaft; a tail end hole is provided at the tail end of the blocking block and is connected to the cylinder connecting plate through a pin shaft.

[0018] Further, the blocking block is set in the shape of "factory".

[0019] Further, the limiting device further includes an end cover, the end cover is fixed to the upper end of the limiting device, and holes are provided on the end cover to facilitate the blocking block to tilt up and expose.

[0020] Further, the material of the blocking block is a metal material, such as steel or copper.

[0021] According to the problems existing in the existing manual limiting and combined with the requirements of automated use, the present utility model first clearly adopts a buffer form with较强durability, such as air buffer, spring buffer, hydraulic buffer, etc.; and considering the later use in combination with automated equipment to ensure the timeliness and convenience of control, and at the same time considering the ground operation and the high requirement for the stability of the device in a harsh environment, so a cylinder is selected as the air buffer form, which has the advantages of flexible control and较好self air buffer ability.

[0022] Meanwhile, considering the installation space issue, the preferred solution should be one that does not occupy space or occupies little space, minimizing the impact on other related equipment or workstations. This is suitable for the complex working conditions of limited space and workers working in shifts in existing vehicle depots. This utility model adopts a related enlarged mechanism with cylinders to reduce the overall size to within the track, thereby maximizing the space available for other supporting mechanisms or workstations and meeting the current situation.

[0023] Meanwhile, considering the rigid requirement of keeping the track unobstructed when the blocking block is not in use, the track should be able to remain unobstructed under fault conditions and other non-use conditions, and should be simple and easy to implement. At the same time, the obstruction of the track should be avoided as much as possible during maintenance. Therefore, this utility model adopts a modular design (the blocking structure adopts a modular design, and the cylinder and other structures are integrated into the mounting bracket of the blocking structure). In case of accident, the external air supply to the cylinder can be cut off, and the blocking block can be automatically lowered to ensure the avoidance function at any time.

[0024] The advantages of this utility model are as follows:

[0025] By utilizing the bogie limiting device of this utility model, manual operation can be replaced, thus freeing up labor.

[0026] The service life of the bogie limiting device of this utility model is extended: by using the air buffer principle of the cylinder, rigid collisions between structures are effectively avoided, the impact of each link is reduced, and the service life of the device is greatly extended.

[0027] The bogie limiting device of this utility model improves safety: the double-rail blocking mechanism ensures uniform force on the bogie and avoids manual operation; the limiting device is installed with the track, ensuring stable operation and avoiding safety problems caused by arbitrary placement by humans.

[0028] The bogie limiting device of this utility model is easy to use with automated equipment: it responds promptly, is highly efficient, and is easy to control with PLC. It is also easy to use with other automated equipment.

[0029] This utility model bogie limiting device basically does not occupy the original track space, and can maximize the use of space for other equipment and workstations, resulting in high space utilization. Attached Figure Description

[0030] Figure 1 This is a schematic diagram showing the bogie placed on the limiting device of this utility model;

[0031] Figure 2 This is a schematic diagram showing the blocking block rising inside the limiting device;

[0032] Figure 3 This is a schematic diagram showing the lowering of the blocking block inside the limiting device;

[0033] Figure 4 Exploded view of the limiting device;

[0034] Figure 5 This is a cross-sectional view of the blocking structure;

[0035] Figure 6 A 3D view of the blocking structure;

[0036] Figure 7 Exploded view of the blocking structure;

[0037] The components include: 1. Bogie; 2. Limiting device; 3. Blocking block; 4. Guide rail; 5. End cover; 6. First countersunk screw; 7. Blocking structure; 8. First hexagonal head screw; 10. First pin; 11. Second pin; 12. Cylinder inclined connecting plate; 13. Second internal hexagonal head screw; 14. Double-rod cylinder extension; 15. Right-angle quick-connect connector; 16. Cylinder connecting seat; 17. Third pin; 18. Mounting support; 19. First shaft retaining ring; 20. Second shaft retaining ring; 21. Pin fixing seat; 22. Third internal hexagonal head screw; 23. Second countersunk screw; 24. Third shaft retaining ring; 25. Magnetic switch adjustment clearance groove; 26. Air pipe outlet; 27. Cable outlet. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] like Figure 1 As shown, the bogie 1 is located on the guide rail 4. The guide rail 4 has a built-in limiting device 2. The upper surface of the limiting device 2 is flush with the guide rail 4. The blocking block 3 inside the limiting device 2 will rise or fall according to the stopping needs of the bogie 1. When the bogie 1 hits the blocking block 3, it will receive a buffering force to prevent hard contact.

[0040] like Figure 2 As shown, when the blocking block 3 on the limiting device 2 is raised, the two wheels of the bogie 1 will be blocked and limited by the blocking block 3.

[0041] like Figure 3 As shown, when the blocking block 3 on the limiting device 2 is lowered, bogie 1 can smoothly rotate normally from the guide rail 4.

[0042] Preferably, limiting devices 2 are arranged on both guide rails 4 at the same time, which can make the force more balanced and reduce the impact force on a single limiting device 2.

[0043] The bogie limiting device 2 in this embodiment includes an end cap 5 and a blocking structure 7. The end cap 5 has holes to facilitate the subsequent lifting and exposure of the blocking block 3; the end cap 5 is located above the blocking structure 7. Figure 4 As shown, the end cap 5 seals the blocking structure 7 in the built-in groove of the guide rail 4 with the first countersunk screw 6; the bottom of the blocking structure 7 is fixed with the first hexagonal cylindrical head screw 8.

[0044] Refer to Figures 5 to 7 As shown, the blocking structure 7 includes a pin shaft, a cylinder diagonal connecting plate 12, a cylinder, a mounting bracket 18, and a blocking block 3.

[0045] Among them, a cylinder is installed inside the mounting bracket 18, and the bottom of the cylinder is fixed on the mounting base 18.

[0046] Specifically, the bottom of the cylinder and the cylinder connecting seat 16 are connected together by the second countersunk head screw 23; the tail end of the cylinder connecting seat 16 is fixed on the pin shaft fixing seat 21 through the third pin shaft 17 and the second pin shaft retaining ring 20; the pin shaft fixing seat 21 is fixed at the bottom of the mounting bracket 18 through the third hexagon socket head cap screw 22.

[0047] Preferably, the cylinder in this embodiment uses a double-rod cylinder 14. The double-rod cylinder 14 belongs to the output force of twice the cylinder diameter. By acting on the blocking structure 7 through double tracks, it is equivalent to a force load not less than 4 times, further reducing the external force received by the cylinder itself. Coupled with the lever principle formed by the blocking block 3, the requirement for the cylinder diameter is further reduced, achieving a greater degree of space reduction.

[0048] The front end of the cylinder is fixedly connected to the cylinder diagonal connecting plate 12. The cylinder diagonal connecting plate 12 is connected to the tail end of the blocking block 3 through a pin shaft, and the two are movably connected. The middle hole of the blocking block 3 is fixed on the upper part of the mounting bracket 18 through a pin shaft, and the front end of the blocking block 3 will tilt up and expose to block and limit the bogie 1.

[0049] In this embodiment, the blocking block 3 is set in the shape of "factory". The front end of the blocking block 3 will tilt up and expose the hole of the end cover 5, so as to limit the bogie 1; a middle hole is provided in the middle of the blocking block 3 and is fixed on the mounting bracket 18 through a pin shaft; a tail end hole is provided at the tail end of the blocking block 3 and is connected to the cylinder diagonal connecting plate 12 through a pin shaft.

[0050] Specifically, the front end of the double-rod cylinder 14 is connected to the cylinder diagonal connecting plate 12 through the second hexagon socket head cap screw 13. The end of the cylinder diagonal connecting plate 12 is connected to the tail end of the blocking block 3 through the second pin shaft 11. The middle hole of the blocking block 3 is fixed on the mounting bracket 18 through the first pin shaft 10 and the first shaft retaining ring 19.

[0051] When the double-rod cylinder 14 extends, through the action of the connecting rod, the upper end of the blocking block 3 will rise. The distance from the upper end of the blocking block 3 to the middle hole is less than the distance from the tail end hole to the middle hole, which can achieve the amplification effect of force output; when the upper end of the blocking block 3 receives the reaction force of the bogie 1, the same force will be reduced and act on the double-rod cylinder 14, reducing the acting force on the cylinder.

[0052] The right-angle quick connector 15 is used for connecting the air pipe and the double-rod cylinder 14.

[0053] The above description is merely a preferred embodiment of the present utility model and does not constitute a limitation on the scope of protection of the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the scope of protection of the claims of the present utility model.

Claims

1. A bogie limiting device, characterized in that, The bogie limiting device is placed inside the track, and the upper surface of the limiting device is flush with the track; the limiting device is modularly designed and includes a housing, a cylinder, a cylinder connecting plate and a blocking block. A cylinder is fixed inside the housing, the front end of the cylinder is connected to the cylinder connecting plate, the cylinder connecting plate is movably connected to the tail end of the blocking block, the middle part of the blocking block is fixed on the upper part of the housing, and the front end of the blocking block will tilt up and expose to stop and limit the bogie.

2. The bogie limiting device as described in claim 1, characterized in that, The cylinder is a double-rod cylinder.

3. The bogie limiting device as described in claim 2, characterized in that, The bogie limiting devices are arranged on both of the two parallel tracks.

4. A bogie limiting device as described in any one of claims 1-3, characterized in that, The bottom of the cylinder is fixed to the bottom of the housing.

5. A bogie limiting device as described in claim 4, characterized in that, The bottom of the cylinder and the cylinder connecting seat are connected together by screws; the tail end of the cylinder connecting seat is fixed on the pin shaft fixing seat through a pin shaft and a pin shaft retaining ring; the pin shaft fixing seat is fixed to the bottom of the housing.

6. A bogie limiting device as described in any one of claims 1-3, characterized in that, The front end of the blocking block will tilt up and expose to limit the bogie; a middle hole is provided in the middle part of the blocking block and is fixed to the upper part of the housing through a pin shaft; a tail end hole is provided at the tail end of the blocking block and is connected to the cylinder connecting plate through a pin shaft.

7. A bogie limiting device as described in claim 6, characterized in that, The blocking block is arranged in an "L" shape.

8. A bogie limiting device as described in any one of claims 1-3, characterized in that, The limiting device further includes an end cover, the end cover is fixed to the upper end of the limiting device, and holes are provided on the end cover for facilitating the tilting up and exposure of the blocking block.

9. A bogie limiting device as described in any one of claims 1-3, characterized in that, The material of the blocking block is a metal material.

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