Straddle type monorail train central traction device

Abstract

The invention relates to a straddle type monorail train central traction device. The straddle type monorail train central traction device comprises a traction pin and a traction beam, wherein a central sleeve is arranged at the center of the traction beam, the traction pin is arranged in the central sleeve, the inner cavity of the central sleeve is of a tightened waist structure with the apertures of the upper end and the lower end big and the aperture at the middle part small, a biconical inclined plane is formed, and an elastic rubber sleeve is arranged between the inner wall of the central sleeve and the traction pin. The straddle type monorail train central traction device is simple and compact in overall structure, connection and separation between a train body and a bogie can be conveniently realized, and the traction beam of the tightened waist structure, the elastic rubber sleeve and a traction rubber pile cooperate each other, so that traction and transmission of a braking force during operation of a train are better realized, the train can better adapt to variation of load in vertical direction and longitudinal direction as well as loading, the requirement of a larger traction force and load variation can be met, and stationarity and comfort during operation of the train are greatly improved.

Description

technical field [0001] The invention relates to a straddle-type monorail train, in particular to a central traction device on the straddle-type monorail train, and belongs to the technical field of rail vehicle manufacturing. Background technique [0002] The straddle-type monorail transit is a full-line elevated rail transit system that utilizes the space above ordinary roads, so it can effectively alleviate the problem of ground traffic congestion. At the same time, due to the special bogie, the monorail train has strong adaptability to steep slopes and sharp bends, and has no strict requirements on the terrain. Moreover, the monorail train uses electric traction, and there is no exhaust pollution during train operation, which is conducive to protecting the urban environment. [0003] The central traction device of the monorail train bogie mainly bears the traction force and braking force, and bears the impact of the bogie relative to the car body, and also meets the relat...

AI Technical Summary

Problems solved by technology

The central traction device of the existing straddle-type monorail train is connected between the traction beam and the traction pin through the traction pin sleeve, which is used to transmit the longitudinal traction force and satisfy the relative rotation between the car body and the bogie. The traction in the prior art Most of the pin sleeves are cylindrical structures with upper and lower equal diameters, which are formed by vulcanizing rubber and metal plates together. Through the compression deformation of the rubber in the horizontal direction, they can withstand the load change in the horizontal direction and play the role of vibration reduction and buffering. However, the load change in the vertical direction is realized by the torsional dislocation of the rubber, which greatly weakens the vertical vibration damping and buffering effect, and also greatly shortens the service life of the traction pin sleeve

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