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Long-stroke rubber elastic side bearing for railway vehicle

A railway vehicle, long-travel technology, applied in the direction of the lateral relative movement device between the underframe and the bogie, etc., can solve the problems affecting the elastic side bearing performance, the performance is not stable enough, the critical speed of the vehicle is low, etc., to achieve stable performance, Easy to manufacture and maintain, to meet the effect of rapid development

Inactive Publication Date: 2007-07-11
CRRC YANGTZE CO LTD
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AI Technical Summary

Problems solved by technology

The gap type side bearing has simple structure, convenient maintenance and low cost, but it is only suitable for low-speed operation of the vehicle, the critical speed of the vehicle is low, and the running stability is poor
High-speed vehicles (above 100km / h) often use constant-contact elastic side bearings, but the current constant-contact elastic side bearings used on vehicles have relatively large vertical stiffness and small pre-compression. The friction torque of frame rotation is greatly changed by external influences, and the performance is not stable enough
At the same time, some elastic side bearings have a longitudinal gap between the side bearing body and the side bearing box, which can be controlled in a small range when new, but after continuous wear and tear in use, the longitudinal gap will gradually increase, affecting the elastic side bearing. reduce or even lose the function of elastic side bearings to suppress bogie meandering and increase critical speed

Method used

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  • Long-stroke rubber elastic side bearing for railway vehicle

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Embodiment Construction

[0011] Refer to the accompanying drawings: a long-stroke rubber elastic side bearing for railway vehicles, which includes a side bearing body, a friction plate 5, an adjustment backing plate 6 and a side bearing box 9, and is characterized in that the side bearing body is vulcanized and combined with a steel part and a rubber part 7 The elastic side support formed; the lower part 1 of the elastic side support is embedded in the side support box 9, that is, the lower surface of the lower part 1 of the elastic side support body is placed on the adjustment backing plate 6 in the side support box 9, and the elastic side support body The upper part 4 is provided with a friction plate 5 with a friction coefficient and wear resistance, that is, the friction plate 5 is embedded in the upper part 4 of the elastic side bearing; the lower part 1 of the elastic side bearing is provided with a limit roller with a limit roller shaft 3 The sub 2 and the longitudinal locking oblique iron 8 wit...

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Abstract

The invention relates to a long-strike rubber flexible side bearing of train, wherein it designs the side bearing into flexible side bearing formed by vulcanizing steel element and rubber element; the lower part of side bearing is embedded into side bearing box, while upper part has friction plate resistant to abrasion; the lower part has limit roller and longitudinal locking incline iron at two sides or one side; the longitudinal locking incline iron can avoid space between lower part of side bearing box, to improve stability; the side of invention has limit roller to limit over displacement of rubber which will affect the service life.

Description

technical field [0001] The invention relates to a long-stroke rubber elastic side bearing for railway vehicles, which belongs to the category of railway vehicle accessories. Background technique [0002] With the continuous speed up of railway vehicles, higher and higher requirements are put forward for the operation stability and safety of railway vehicles. As a part of railway freight vehicles, side bearings affect the dynamic performance and operation safety of railway freight vehicles key components. [0003] There are two kinds of side bearings of existing railway wagons: gap type and normal contact type. The gap type side bearing has simple structure, convenient maintenance and low cost, but it is only suitable for low-speed operation of the vehicle, the critical speed of the vehicle is low, and the running stability is poor. High-speed vehicles (above 100km / h) often use constant-contact elastic side bearings, but the current constant-contact elastic side bearings us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/14B61F5/08
Inventor 刘桂军严志雄孙明道段扬名
Owner CRRC YANGTZE CO LTD
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