General anti-collision process trolley for railway freight cars

Abstract

This invention discloses a universal anti-collision process trolley for railway freight cars, comprising a universal trolley body supported within the inner cavity of the middle beam of the railway freight car, between the front and rear axle seats of the middle beam. The universal trolley body includes positioning pads, adjusting pads, mounting seats, and a traveling trolley. The positioning pads support the railway freight car and are detachably mounted on the adjusting pads, which are detachably mounted on the mounting seats. The mounting seats are fixed to the traveling trolley, and a buffer anti-collision device is mounted on the traveling trolley. The advantages of this invention are: modular design, positioning within the inner cavity of the railway freight car's middle beam, and mounting between the front and rear axle seats of the middle beam, providing good versatility; the buffer anti-collision device effectively prevents collisions between vehicles, eliminating the need for additional anti-collision tooling on the vehicles, reducing tooling manufacturing and management costs; and the use of pin connections between modules allows for quick replacement, reducing the need for modifications to the process trolley.

Description

Technical Field

[0001] This invention pertains to auxiliary equipment for railway freight car manufacturing, specifically relating to a general-purpose anti-collision process trolley for railway freight cars. Background Technology

[0002] Currently, after the steel structure of the railway freight car body is manufactured, in order to avoid damage and contamination of the bogie during the subsequent vehicle sandblasting and painting processes, the car body is generally placed on a process trolley and transferred to the car body sandblasting and painting process by traction or manual pushing. After the work is completed, the bogie is then slowly assembled for brake hook assembly.

[0003] Meanwhile, since the steel structure of the car body has not yet been assembled with couplers, in order to avoid collisions that could damage the car body during the transfer process and sandblasting and painting operations after the car body is placed on the process trolley, anti-collision devices are usually installed on the impact seats at both ends of the car body underframe.

[0004] like Figure 1 As shown, the problems with using the "existing process trolley + anti-collision device" tamping vehicle are as follows:

[0005] a. Existing process trolleys are generally modified from scrapped cast steel three-piece bogies, employing a fixed center plate and side bearing support structure. To ensure sufficient working space for sandblasting and painting processes, support devices are typically welded to the side frames of the process trolley to raise it to a suitable height (too low a height results in insufficient working space; too high a height makes operation inconvenient and unsafe). Because different types of railway freight cars have different external dimensions and ground clearance, the raised process trolleys lack versatility, requiring frequent changes and modifications to the support devices, which is labor-intensive, time-consuming, and has a long preparation period, increasing operating costs.

[0006] b. The existing process trolley uses a center plate for support, approximately 2 meters from the end of the vehicle. To prevent collisions during vehicle transfer, additional anti-collision devices are installed at both ends of the vehicle body. These anti-collision devices are specialized tooling. Firstly, the numerous vehicle manufacturing processes from the steel structure to the sandblasting and painting stages require a large number of anti-collision devices, increasing manufacturing costs. Secondly, the anti-collision devices are only removed when the vehicle is assembled with the coupler, and then transported back to the steel structure process for reuse, increasing logistics and transportation costs. Thirdly, different vehicle models have different impact seat structures, requiring the added anti-collision devices to be designed specifically for each model, lacking universality. Fourthly, a large number of anti-collision devices require dedicated storage and management, increasing management costs. Fifthly, after long-term use, the anti-collision devices may deform due to collisions, increasing maintenance costs. Furthermore, if not repaired promptly, the anti-collision devices may fall off during transfer, affecting normal vehicle transfer and creating safety and quality risks. Summary of the Invention

[0007] The purpose of this invention is to provide a universal anti-collision process trolley for railway freight cars, which solves the problems of existing process trolleys being neither universal nor convenient.

[0008] The objective of this invention is achieved through the following technical solution:

[0009] A general-purpose anti-collision process trolley for railway freight cars includes a general-purpose trolley body, which is supported in the inner cavity of the middle beam of the railway freight car and between the front and rear axle seats of the middle beam. A buffer anti-collision device is installed at the outer end of the general-purpose trolley body.

[0010] The general-purpose trolley body includes positioning pads, adjusting pads, mounting bases, and traveling trolleys. The positioning pads support the railway freight cars. The positioning pads are detachably mounted on the adjusting pads, which are detachably mounted on the mounting bases. The mounting bases are fixed on the traveling trolleys, and the buffer anti-collision devices are mounted on the traveling trolleys.

[0011] Furthermore, the positioning pad is welded together from a base plate and a positioning block. The base plate and the positioning pad are detachable and can be installed separately. The positioning block supports the railway freight car.

[0012] Furthermore, the adjusting pad is made of welded sheet metal, and the bottom and top of the adjusting pad are detachably installed with the mounting base and the positioning pad, respectively.

[0013] Furthermore, the mounting base is constructed from welded sheet metal, with its bottom welded to the traveling trolley, and its top and adjusting pads being detachably installed.

[0014] Furthermore, the positioning pad and the adjusting pad, as well as the adjusting pad and the mounting base, are connected by connecting pins and connecting pin holes.

[0015] Furthermore, the bottom of the positioning pad and the top of the adjusting pad are each provided with at least two identical connecting pin holes in opposite positions, and the two ends of the connecting pin are respectively inserted into the connecting pin holes at the bottom of the positioning pad and the top of the adjusting pad.

[0016] Furthermore, the bottom of the adjusting pad and the top of the mounting base are each provided with at least four identical connecting pin holes in opposite positions, and the two ends of the connecting pin are respectively inserted into the connecting pin holes at the bottom of the adjusting pad and the top of the mounting base.

[0017] Furthermore, the end of the buffer and anti-collision device is provided with a rigid buffer pad.

[0018] Furthermore, the traveling trolley includes a trolley frame and traveling wheelsets. The trolley frame is welded from profiles, and buffer anti-collision devices are installed at the ends of the trolley frame. Traveling wheelsets are installed at the bottom of the trolley frame.

[0019] The functions achieved by this invention are as follows: It adopts a modular design, with the inner cavity of the middle beam of the railway freight car positioned and installed between the front and rear support plates of the middle beam; the buffer anti-collision device set on the traveling trolley can effectively avoid collisions between vehicles; the modules are connected by a pin method, which can be quickly replaced to adapt to different vehicle structures and reduce the need for modification of process trolleys.

[0020] The beneficial effects of this invention are:

[0021] 1. This invention changes the existing positioning and bearing method of process trolleys. Instead of using a center plate for positioning and bearing, it uses the inner cavity surface of the middle beam on the vehicle's underframe for bearing, with the front and rear working surfaces of the middle beam for positioning. Since the distance between the front and rear working surfaces of the middle beam of a railway freight car is 625mm, selecting this position for positioning and bearing provides good versatility.

[0022] 2. This invention adopts a modular design, with each component connected by a pin. Compared with the traditional cast steel three-part process trolley, the process trolley of this invention is lighter and can be quickly replaced, reducing the equipment modification and preparation cycle, and is also beneficial for equipment hoisting, manual handling and maintenance in the production process.

[0023] 3. Because the positioning and bearing position of the process trolley of the present invention has changed, it is closer to the end of the vehicle (less than 400mm away). By setting a buffer device at the front end of the traveling trolley of the process trolley of the present invention, the collision of the vehicle can be avoided. There is no need to install additional anti-collision fixtures, which eliminates the problems of manufacturing, using and managing anti-collision fixtures and reduces manufacturing costs.

[0024] The aforementioned main solution of the present invention and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and are claimed by the present invention; furthermore, the (non-conflicting alternatives) can also be freely combined with each other and with other alternatives. Those skilled in the art, after understanding the solution of the present invention, will realize that there are many combinations based on existing technology and common knowledge, all of which are technical solutions to be protected by the present invention, and will not be exhaustively listed here. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the tamping and transporting of existing process trolleys.

[0026] Figure 2 This is a schematic diagram of the tamping and conveying process of the present invention.

[0027] Figure 3 This is a front view of the structure of the process trolley of the present invention.

[0028] Figure 4 This is a side view of the structure of the process trolley of the present invention.

[0029] In the diagram: 1-positioning pad, 2-adjusting pad, 3-mounting base, 4-traveling trolley, 5-connecting pin, 6-connecting pin hole, 7-buffered anti-collision device, 8-general trolley body, 9-railway freight car, 10-existing trolley body, 11-trolley frame, 12-traveling wheelset. Detailed Implementation

[0030] The following non-limiting examples are used to illustrate the present invention.

[0031] Example 1:

[0032] refer to Figures 2-4 As shown, a universal anti-collision process trolley for railway freight cars includes a universal trolley body 8, which is supported within the cavity of the middle beam of the railway freight car 9, and positioned between the front and rear axle plates of the middle beam. This invention changes the existing positioning and support method of process trolleys, no longer relying on a center plate for positioning and support, but instead using the inner cavity surface of the middle beam on the vehicle underframe for support, with positioning based on the working surfaces of the front and rear axle plates of the middle beam, thus possessing excellent versatility.

[0033] The general-purpose trolley body 8 adopts a modular design, including positioning pads 1, adjusting pads 2, mounting bases 3, and traveling trolleys 4. Positioning pads 1 support the railway freight cars 9. Positioning pads 1 are detachably mounted on adjusting pads 2, which are detachably mounted on mounting bases 3. Mounting bases 3 are welded and fixed to the traveling trolleys 4. The modular components are connected by pins. Compared to traditional process trolleys, this design is lighter and allows for quick replacement, reducing the need for modifications.

[0034] A buffer anti-collision device 7 is added to the outer end of the general-purpose trolley body 8. By setting a buffer device at the front end of the traveling trolley, collisions between vehicles are avoided. This eliminates the need for anti-collision fixtures at the vehicle impact seat, reducing the production and management of fixtures and lowering manufacturing costs. Specifically, the buffer anti-collision device 7 is installed on the traveling trolley 4, and the buffer anti-collision device on the traveling trolley can effectively prevent collisions between vehicles.

[0035] The positioning pad 1 is assembled and welded from a base plate and a positioning block. The base plate and the adjusting pad 2 can be detached and installed. The positioning block supports the railway freight car 9. The positioning block is machined to ensure a length of 6250-3mm.

[0036] The adjusting shim 2 is constructed from thicker sheet metal welded together. The bottom and top of the adjusting shim 2 are detachably installed to the mounting base 3 and the positioning shim 1, respectively. The adjusting shim 2 is designed based on the type of vehicle model in production, through process analysis, and is generally manufactured in 2-3 different heights to meet the support height requirements of different vehicle models.

[0037] Mounting base 3 is made of thicker plates welded together. The bottom of mounting base 3 is welded to the traveling trolley 4, and the top of mounting base 3 and adjusting pad 2 can be detached and installed.

[0038] The positioning pad 1 and the adjusting pad 2, as well as the adjusting pad 2 and the mounting base 3, are connected by connecting pins 5 and connecting pin holes 6. The pin connection allows for quick replacement of modular components to adapt to different vehicle structures and reduce the need for modification of the process trolley.

[0039] The bottom of the positioning pad 1 and the top of the adjusting pad 2 are provided with at least two connecting pin holes 6 of the same number and opposite positions, preferably two at the front and back. The two ends of the connecting pin 5 are respectively inserted into the connecting pin holes 6 at the bottom of the positioning pad 1 and the top of the adjusting pad 2 to realize the detachable connection between the two.

[0040] The bottom of the adjusting pad 2 and the top of the mounting base 3 are provided with at least four connecting pin holes 6 of the same number and opposite positions, preferably four arranged at the four corners. The two ends of the connecting pin 5 are respectively inserted into the connecting pin holes 6 at the bottom of the adjusting pad 2 and the top of the mounting base 3 to realize the detachable connection between the two.

[0041] The buffer and anti-collision device 7 is made of steel to prevent damage from collisions with trolleys or trucks. Hard buffer pads can be added to its ends to further enhance the buffering effect.

[0042] The traveling trolley 4 includes a trolley frame 11 and traveling wheel pairs 12. The trolley frame 11 is made of profile welded together. A buffer anti-collision device 7 is installed at the end of the trolley frame 11. The traveling wheel pairs 12 are installed at the bottom of the trolley frame 11. There are two sets of traveling wheel pairs 12, which are arranged at the front and rear positions of the trolley frame 11 respectively.

[0043] The foregoing basic examples and their further alternative examples of the present invention can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed by the present invention. In the present invention, each alternative example can be arbitrarily combined with any other basic example and alternative example.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A universal anti-collision process trolley for railway freight cars, comprising a universal trolley body (8), characterized in that: The general-purpose trolley body (8) is supported in the inner cavity of the middle beam of the railway freight car (9), and is supported between the front and rear support plates of the middle beam. A buffer anti-collision device (7) is installed at the outer end of the general-purpose trolley body (8). The general-purpose trolley body (8) includes a positioning pad (1), an adjusting pad (2), a mounting seat (3), and a traveling trolley (4). The positioning pad (1) supports the railway freight car (9). The positioning pad (1) is detachably installed on the adjusting pad (2). The adjusting pad (2) is detachably installed on the mounting seat (3). The mounting seat (3) is fixed on the traveling trolley (4). The buffer anti-collision device (7) is installed on the traveling trolley (4). The positioning pad (1) and the adjusting pad (2) are connected by connecting pins (5) and connecting pin holes (6), and the adjusting pad (2) and the mounting base (3) are connected by connecting pins (5) and connecting pin holes (6). The pin connection enables quick replacement of module components to adapt to different vehicle structures and reduce the modification of process trolleys.

2. The universal anti-collision process trolley for railway freight cars according to claim 1, characterized in that: The positioning pad (1) is made of a base plate and a positioning block welded together. The base plate and the adjusting pad (2) can be detached and installed. The positioning block supports the railway freight car (9).

3. The universal anti-collision process trolley for railway freight cars according to claim 2, characterized in that: The adjustment pad (2) is made of welded plates. The bottom and top of the adjustment pad (2) are detachably installed with the mounting base (3) and the positioning pad (1), respectively.

4. The universal anti-collision process trolley for railway freight cars according to claim 3, characterized in that: The mounting base (3) is made of welded plates. The bottom of the mounting base (3) is welded to the traveling trolley (4). The top of the mounting base (3) and the adjusting pad (2) are detachably installed.

5. The universal anti-collision process trolley for railway freight cars according to claim 1, characterized in that: The bottom of the positioning pad (1) and the top of the adjusting pad (2) are provided with at least two connecting pin holes (6) of the same number and opposite positions. The two ends of the connecting pin (5) are respectively inserted into the connecting pin holes (6) at the bottom of the positioning pad (1) and the top of the adjusting pad (2).

6. The universal anti-collision process trolley for railway freight cars according to claim 1 or 5, characterized in that: The bottom of the adjustment pad (2) and the top of the mounting base (3) are provided with at least four connecting pin holes (6) of the same number and opposite positions. The two ends of the connecting pin (5) are respectively inserted into the connecting pin holes (6) at the bottom of the adjustment pad (2) and the top of the mounting base (3).

7. The universal anti-collision process trolley for railway freight cars according to claim 1, characterized in that: The end of the buffer and anti-collision device (7) is provided with a hard buffer pad.

8. The universal anti-collision process trolley for railway freight cars according to claim 1, characterized in that: The traveling trolley (4) includes a trolley frame (11) and traveling wheelsets (12). The trolley frame (11) is made of profile welded together. A buffer anti-collision device (7) is installed at the end of the trolley frame (11), and the traveling wheelsets (12) are installed at the bottom of the trolley frame (11).

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