The invention discloses an automatic on/off switching device of an air pipeline of a motor train unit. Actions of a switching cylinder are controlled through an electromagnetic valve; a connecting rod of the switching cylinder is a rack; a long cam shaft is connected with a linkage cam, a fan-shaped gear and a bolt cam; the fan-shaped gear is engaged to the rack; the front end of the long cam shaft is connected with a coupling; the other end of the coupling is connected with a short cam shaft to open and close a coupling valve and an uncoupling valve so as to realize the purpose of keeping one-way conduction between the coupling valve and the uncoupling valve; the automatic switching can be realized through the electromagnetic valve; an operation handle can be manually switched; a coupling switch and an uncoupling switch realize the contact feedback to indicate the switching position information; meanwhile, a stop valve and a drainage valve are arranged for improving the maintainability of products; in order to guarantee the use under the condition of ultralow temperature, a heater is mounted in the device; and the coupling operation and the uncoupling operation can realize the automation through electric control, so that the reliability is strong, and the safety is high.
Automatic on/off switching device of air pipeline of motor train unit
2015-04-08
Patent
Electronic Resource
English
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