A rigidity-adjustable pantograph spring box comprises a first bevel gear, a first base, a spring, a bidirectional pneumatic motor, a second bevel gear and a second base, wherein the first bevel gear is installed on the base through a rotating pair, the inner-diameter wall face of the first bevel gear is provided with inner threads, the spring is installed in the first bevel gear through the inner threads to form a screw pair, the bidirectional pneumatic motor is fixed on the first base, the second bevel gear is fixed on the output shaft of the bidirectional pneumatic motor and is meshed with the first bevel gear, the lower end of the spring is fixed to the second base, and the upper end of the spring is kept free. The first base is an upper frame cross beam of a pantograph, and the second base is a carbon sliding plate bracket of the pantograph. The rigidity-adjustable pantograph spring box is simple in structure, real-time continuous adjustment can be conducted on the rigidity of the spring box according to the rigidity of the pantograph head of the pantograph at the speed per hour in the running process of an electric locomotive, the adjustment accuracy is high, the pneumatic motor does not need pressure maintaining when the rigidity of the spring box is not changed, and the reliability is improved while energy is saved.
Rigidity-adjustable pantograph spring box
2016-01-06
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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