Coupler and buffer device and coupler height adjusting and limiting device

Abstract

The invention relates to a coupler and buffer device and a coupler height adjusting and limiting device. The coupler height adjusting and limiting device comprises a base, an elastic bearing, stop blocks, a limiting device, limiting bolts, supports and height adjusting bolts. When the head of a car coupler of the coupler and buffer device is replaced or a transition car coupler is additionally installed, although the weight of the car coupler changes obviously, the height of the coupler and buffer device is kept unchanged as the elastic bearing is limited and pre-pressure acts, the phenomenon that the weight of the coupler and buffer device is reduced and consequently a buffer system floats or bounces up suddenly is avoided, the phenomenon that the car coupler is pressed down and droops is not likely to occur, and therefore accidental injury caused in the process of detaching or replacing the car coupler is avoided; after lateral force on the buffer system is removed, the buffer system and a centering support assembly can rotate automatically around a coupler yoke key under the acting force of disc springs through a rotation structure of the coupler and buffer device, and therefore the automatic centering function of the coupler and buffer device is achieved.

Description

technical field [0001] The invention relates to a rail vehicle buffer device, in particular to a hook buffer device and a hook height adjusting and limiting device. Background technique [0002] The hook buffer device is one of the most basic and important parts of the vehicle, which plays the role of buffering the longitudinal impulse between vehicles and protecting the vehicle, passengers and on-board equipment. [0003] At present, most of the couplers used in my country's railway locomotives, passenger cars and freight cars use the structure type of coupler buffer and coupler tail frame. In the coupler buffer device of this structure, the adjustment of the coupler height is mainly realized by adding a wear plate at the bottom of the coupler, which has a large workload and low adjustment accuracy. And in recent years the EMUs and other trains that have been running have used close-connected couplers, and the hook height of the close-connected couplers can be realized by ...

AI Technical Summary

Problems solved by technology

The above-mentioned buffer device can realize the buffering function of being connected with the 25T type close-connected coupler. However, due to the use of the supporting spring box, when the hook buffer device is disassembled or replaced, the weight of the hook buffer device suddenly decreases, resulting in a sudden springing of the hook buffer device, which is easy. cause an accident

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