Electromagnetic suspension air spring and rail vehicle

Abstract

The invention provides an electromagnetic suspension air spring and a rail vehicle. The air spring includes an upper cover; a lower cover, which includes: a cover plate, arranged opposite to the upper cover at intervals; a support member, connected below the cover plate, and the inner hollow forms a first accommodation cavity with the cover plate; the air bag is arranged on the cover plate An air cavity is formed between the upper cover and the base; the base is connected to the support; the electromagnetic levitation module includes the first coil and the second coil that are energized; the detection module includes: a first load sensor that is arranged on the upper cover for Detect the vertical load borne by the air spring; the first height sensor is used to detect the height difference between the upper cover and the bottom of the base; the electromagnetic control module is electrically connected with the electromagnetic levitation module and the detection module respectively, and the electromagnetic control module is controlled by It is configured to receive the detection signal of the detection module, and control the electromagnetic levitation module according to the detection signal. The invention has an active damping function and effectively improves the damping performance and operating reliability of the air spring.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle vibration reduction, in particular to an electromagnetic suspension air spring and a rail vehicle. Background technique [0002] The air spring is installed between the car body and the bogie, and its function is to transmit vertical load, lateral load and torque, etc., absorb vertical and horizontal vibration, and provide horizontal restoring force, which has a great influence on the stability and comfort of the vehicle . [0003] In the prior art, the air spring mostly adopts the airbag and the auxiliary spring in series, and the vibration reduction effect is realized through the air compression in the airbag and the rubber deformation of the auxiliary spring. Its structure mainly includes an upper cover, an airbag and an auxiliary spring, wherein the upper cover is located under the car body or bolster, and performs the functions of sealing and transmitting loads, and the auxiliary spring...

AI Technical Summary

Problems solved by technology

The air spring adopts the air bag and the auxiliary spring in series for vibration reduction, which is a passive vibration reduction method for absorbing vibration, which cannot achieve active vibration reduction, and its vibration reduction performance is not good; and the auxiliary spring is in a regular working state, and the load it bears changes relatively quickly. Large, low service life, seriously affecting the reliability of the vehicle

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