Railway vehicle bogie shock absorber spring pressing plate easy to replace

Abstract

The railway vehicle bogie shock absorber spring pressing plate easy to replace comprises a cross-shaped steel plate, and the width of a cross arm and the width of a vertical arm of the cross-shaped steel plate are larger than or equal to the outer diameter of a shock absorption spring. The length of a cross arm of the cross-shaped steel plate is smaller than or equal to the width of a spring bearing table top at the bottom of a central square frame of the railway vehicle bogie side frame, and the length of a vertical arm of the cross-shaped steel plate is smaller than or equal to the length of the spring bearing table top at the bottom of the central square frame of the bogie side frame. Damping springs are respectively arranged at the upper parts of two ends of a cross arm and two ends of a vertical arm of the cross-shaped steel plate. According to the utility model, the original rectangular spring pressing plate is replaced by the cross-shaped spring pressing plate, so that the four corners of the spring bearing table top cannot be covered by the spring pressing plate, and the shock-absorbing spring and the spring pressing plate can be conveniently disassembled and replaced under the condition that the car lifting jack is not used by placing the jack on the corners of the spring bearing table top to jack up the swing bolster; and the working efficiency is greatly improved, and the labor intensity of workers and the equipment maintenance cost are reduced.

Description

Technical Field

[0001] The utility model relates to a railway vehicle bogie shock absorber spring pressure plate which can be replaced only by using a jack and belongs to the technical field of vehicles. Background Art

[0002] In some railway vehicle bogies, each side frame is connected to the bolster through four damping springs. The four damping springs are located in the central frame of the side frame. The lower ends of the damping springs are supported on the rectangular spring-bearing table at the bottom of the central frame through spring pressure plates, and the upper ends of the damping springs are supported on the lower surface of the end of the bolster through pads (see Figure 1 ). During the operation of railway vehicles, the spring pressure plate wears quickly. In order to ensure driving safety, the spring pressure plate that has been worn to the limit needs to be replaced in time.

[0003] The existing spring pressure plates are all rectangular plates, and the size and shape of the rectangular plates are basically the same as the spring bearing table of the side frame. The four shock absorbing springs are respectively located inside the midpoints of the four sides of the rectangular plate (see Figure 2 ). When replacing the spring pressure plate, the frame on the bolster needs to be lifted up by a car lift, the bolster needs to be removed, and then the shock-absorbing spring needs to be taken out from the central box before the spring pressure plate can be replaced. The disadvantage is that a car lift is required, the operation is very complicated, the labor intensity of the staff is high, the work efficiency is low, and the equipment maintenance cost is high, so it is necessary to improve it. Utility Model Content

[0004] The utility model aims to provide an easily replaceable railway vehicle bogie shock absorber spring pressure plate to address the drawbacks of the prior art, so as to reduce the difficulty of replacing the spring pressure plate, reduce the labor intensity of the staff, improve work efficiency and reduce equipment maintenance costs.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The invention discloses an easily replaceable railway vehicle bogie shock absorber spring pressure plate, comprising a cross-shaped steel plate, wherein the widths of the cross arm and the vertical arm of the cross-shaped steel plate are greater than or equal to the outer diameter of the shock absorber spring, the length of the cross arm of the cross-shaped steel plate is less than or equal to the width of the spring bearing surface at the bottom of the central square frame of the railway vehicle bogie side frame, the length of the vertical arm of the cross-shaped steel plate is less than or equal to the length of the spring bearing surface at the bottom of the central square frame of the railway vehicle bogie side frame, and a shock absorber spring is respectively placed on the upper parts of the two ends of the cross arm and the two ends of the vertical arm of the cross-shaped steel plate.

[0007] The above-mentioned easily replaceable railway vehicle bogie shock absorber spring pressure plate, the thickness of the cross-shaped steel plate is 2-8mm.

[0008] The utility model replaces the original rectangular spring pressure plate with a cross-shaped spring pressure plate, so that the four corners of the spring-bearing table cannot be covered by the spring pressure plate. The jack is placed on the corners of the spring-bearing table to lift the bolster, so that the shock-absorbing spring can be conveniently disassembled and the spring pressure plate can be replaced without using a car lifting machine, which greatly improves work efficiency and reduces the labor intensity of workers and the maintenance cost of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0010] Figure 1 It is a schematic diagram of the structure of a railway vehicle bogie;

[0011] Figure 2 It is a schematic diagram of the structure of a traditional spring pressure plate;

[0012] Figure 3 It is a structural schematic diagram of the utility model;

[0013] Figure 4 This is a schematic diagram of replacing the spring pressure plate using a jack;

[0014] Figure 5 yes Figure 4 Top view of the center spring pressure plate, shock spring and jack.

[0015] The numbers in the figure are as follows: 1. spring pressure plate, 2. shock-absorbing spring, 3. rocker, 4. side frame, 5. wheel, 6. jack, 7. spring-bearing table.

[0016] 1-1, horizontal arm, 1-2, vertical arm. DETAILED DESCRIPTION

[0017] The utility model aims at the deficiencies of the prior art and provides an easily replaceable spring pressure plate for a railway vehicle bogie shock absorber. The spring pressure plate has a simple structure, is easy to use, safe and durable, can greatly reduce the difficulty of replacing the spring pressure plate for the railway vehicle bogie shock absorber, reduces the labor intensity of workers, improves work efficiency and reduces equipment maintenance costs.

[0018] See also Figure 3 The utility model includes a cross-shaped steel plate, the thickness of the cross-shaped steel plate is 2-8mm, the width of the cross arm 1-1 and the vertical arm 1-2 of the cross-shaped steel plate is greater than or equal to the outer diameter of the shock-absorbing spring 2, the length of the cross arm 1-1 of the cross-shaped steel plate is less than or equal to the width of the spring-bearing table 7 at the bottom of the central square frame of the railway vehicle bogie side frame 4, the length of the vertical arm 1-2 of the cross-shaped steel plate is less than or equal to the length of the spring-bearing table 7 at the bottom of the central square frame of the railway vehicle bogie side frame 4, and a shock-absorbing spring 2 is placed on each of the two ends of the cross arm 1-1 of the cross-shaped steel plate and the upper part of the two ends of the vertical arm 1-2.

[0019] The manufacturing method of the utility model is as follows:

[0020] First, a rectangular steel plate with a thickness of 2-8 mm is made. The length and width of the rectangular steel plate are the same as those of the traditional rectangular spring pressure plate, which are 560 mm and 420 mm respectively. Then, a rectangular steel plate with a length of 200 mm and a width of 105 mm is cut off from each of the four corners of the rectangular steel plate to form a cross-shaped steel plate to obtain the desired cross-shaped spring pressure plate. The widths of the horizontal arm 1-1 and the vertical arm 1-2 of the cross-shaped spring pressure plate are 160 mm and 210 mm respectively. Since the width of the rectangular steel plate cut off from the four corners is greater than the base diameter of a general jack, after the cross-shaped spring pressure plate is placed on the spring-bearing table, the jack can be placed on the four corners of the spring-bearing table that are not covered by the cross-shaped spring pressure plate. After the jack is used to lift the bolster 3, the shock-absorbing spring 2 is first removed. Since the cross-shaped spring pressure plate is not pressed by the jack, it can be easily removed and replaced.

[0021] When using traditional spring pressure plates, the frame needs to be lifted up by a crane before replacing the spring pressure plates, which is very cumbersome and takes 3-4 hours to replace a spring pressure plate. However, when using cross-shaped spring pressure plates, the frame does not need to be lifted up and can be replaced with a jack. It only takes 20 minutes to replace a spring pressure plate, which greatly saves maintenance time.

Claims

1. An easily replaceable railway vehicle bogie shock absorber spring pressure plate, characterized in that: The invention comprises a cross-shaped steel plate, wherein the width of the cross arm (1-1) and the vertical arm (1-2) of the cross-shaped steel plate is greater than or equal to the outer diameter of the shock absorbing spring (2), the length of the cross arm (1-1) of the cross-shaped steel plate is less than or equal to the width of the spring bearing surface (7) at the bottom of the central square frame of the railway vehicle bogie side frame (4), the length of the vertical arm (1-2) of the cross-shaped steel plate is less than or equal to the length of the spring bearing surface (7) at the bottom of the central square frame of the railway vehicle bogie side frame (4), and a shock absorbing spring (2) is respectively placed on the upper part of the two ends of the cross arm (1-1) of the cross-shaped steel plate and the two ends of the vertical arm (1-2).

2. The easily replaceable railway vehicle bogie shock absorber spring pressure plate according to claim 1, characterized in that: The thickness of the cross-shaped steel plate is 2-8 mm.

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