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A long-travel constant contact elastic side bearing and vibration reduction method for railway freight cars

A railway freight car, long-stroke technology, applied in the direction of the device for lateral relative movement between the chassis and the bogie, can solve the problems of small stiffness change, large vertical stroke, small permanent deformation, etc., to achieve increased radial stiffness, The effect of improving safety

Active Publication Date: 2017-05-31
株洲市求拙机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The purpose of the present invention is to solve the shortcomings of existing elastic side bearings, and propose a constant contact elastic side bearing with small permanent deformation, small stiffness change and large vertical stroke within the service life, so as to meet the needs of high-speed and heavy-duty development of trucks

Method used

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  • A long-travel constant contact elastic side bearing and vibration reduction method for railway freight cars
  • A long-travel constant contact elastic side bearing and vibration reduction method for railway freight cars

Examples

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Effect test

Embodiment 1

[0039] By attaching Figure 1-2 It can be seen that the present invention relates to a long-stroke, constant-contact elastic side bearing, which includes a side bearing lower body 3, a side bearing upper body 1, a side bearing bearing plate 5, a rubber body 2, and a metal spring 4. The side bearing upper body 1 is vulcanized into a whole by the rubber body 2, and is connected to the side bearing bearing plate 5 through the end of the side bearing upper body 1 to form two bushing rubber springs placed in parallel, which serve to transmit the side bearing longitudinal direction The function of the load: A metal spring 4 is fitted on the outside of each bushing rubber spring. The metal spring 4 is located between the side bearing lower body 3 and the bearing plate 5, and bears most of the vertical load of the side bearing.

[0040] The metal spring 4 is sleeved outside the contact sleeve 8 vulcanized by the side support lower body 3 and the rubber body 2, and the contact sleeve 8 of...

Embodiment 2

[0047] The principle of the second embodiment is the same as that of the first embodiment, including the side bearing lower body, the side bearing upper body, the side bearing bearing plate, the rubber body and the metal spring. The side bearing lower body and the two side bearing upper bodies are vulcanized into one by the rubber body. The whole body is connected with the side bearing bearing plate through the end of the side bearing upper body to form two bushing rubber springs placed in parallel, which play the role of transmitting the longitudinal load of the side bearing; set on the outside of each bushing rubber spring There is a metal spring, which is located between the lower body of the side bearing and the bearing plate, and bears most of the vertical load of the side bearing.

[0048] The metal spring is sleeved outside the vulcanized contact sleeve of the side bearing lower body and the rubber body, and the contact sleeve of the side bearing lower body is used as the g...

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Abstract

A railway freight car long-stroke constant-contact elastic side bearing and vibration damping method. The elastic side bearing comprises a side bearing lower member (3), a side bearing upper member (1), a side bearing bearing plate (5), a rubber member (2) and a metal spring (4). The side bearing lower member (3) is integrated with two side bearing upper bodies (1) respectively by vulcanizing the rubber member (2), and is connected to the side bearing bearing plate (5) via an end of the side bearing upper member (1) to form two inserted rubber springs disposed connected in parallel and acting as a transmitting side bearing a longitudinal load. The metal spring (4) is sleeved on the outside of each of the inserted rubber springs, and is between the side bearing lower member (3) and the bearing plate (5), and bears most of a side bearing vertical load. By the above combination, the following features are organically combined: the metal spring readily achieves a large stroke and has a small permanent deformation after operation, and the inserted rubber spring has a high radial stiffness; thus, the invention realizes a long-stroke constant-contact elastic side bearing, and effectively inhibits a side rolling motion and a snaking motion of a freight car.

Description

Technical field [0001] The invention relates to a railway freight car component and an operation method, in particular to a railway freight car long-travel often contact elastic side bearing and a vibration reduction method thereof, and belongs to the technical field of railway freight car manufacturing. [0002] Background technique: [0003] The elastic side bearing is an important component of modern railway freight cars. It is located between the freight car bogie bolster or frame and the freight car body. It plays a role in restraining the rolling motion and serpentine motion of the freight car, and has a great impact on the safety and stability of railway freight cars. play an important role. [0004] At present, JC series flexible side bearings are widely used in Chinese railway freight cars. Many problems have been exposed in the application of such flexible side bearings. Two of the main problems are: [0005] 1) After this type of elastic side bearing is used for a period of...

Claims

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Application Information

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IPC IPC(8): B61F5/14
CPCB61F5/14
Inventor 李国宋卓然宫万禄淡赵军张冰曾庆祎
Owner 株洲市求拙机械制造有限公司
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