Electromagnetic suspension type air spring and railway vehicle

Abstract

The invention provides an electromagnetic suspension type air spring and a railway vehicle. The air spring comprises an upper cover, a lower cover, an electromagnetic suspension module, a detection module and an electromagnetic control module; the lower cover comprises a cover plate which is arranged opposite to the upper cover at an interval, a supporting piece which is connected to the lower portion of the cover plate, is hollow and forms a first containing cavity with the cover plate, an air bag which is arranged between the cover plate and the upper cover to form an air cavity, and a base which is connected with the supporting piece; the electromagnetic suspension module comprises a first coil and a second coil which are electrified; the detection module comprises a first load sensor which is arranged on the upper cover and is used for detecting a vertical load borne by the air spring, and a first height sensor which is used for detecting the height difference between the upper cover and the bottom of the base; and the electromagnetic control module is electrically connected with the electromagnetic suspension module and the detection module, and the electromagnetic control module is configured to receive a detection signal of the detection module and control the electromagnetic suspension module according to the detection signal. The electromagnetic suspension type air spring has an active vibration reduction function, and the vibration reduction performance and the application reliability of the air spring are effectively improved.

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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