The invention discloses a hydraulic steering system for an engineering vehicle. The hydraulic steering system comprises a vehicle axle, an oil cylinder assembly and an oil supplying pipeline, wherein the oil cylinder assembly comprises two same single-rod oil cylinders which are fixed together in a back-to-back manner; a left end rod of the oil cylinder assembly is connected with a steering fixing arm; the steering fixing arm is connected to the vehicle axle; a right end rod of the oil cylinder assembly is fixedly connected with the middle of a right rotation arm of a steering pull rod; one end of the right rotation arm of the steering pull rod is connected with the vehicle axle; the other end of the right rotation arm of the steering pull rod is connected with the right end of a steering cross pull rod; the left end of the steering cross pull rod is connected with a left rotation arm of the steering pull rod; the left rotation arm of the steering pull rod is connected onto the vehicle axle; the oil cylinder assembly is connected with a high pressure loop and an oil returning loop. According to the hydraulic steering system disclosed in the invention, a centering oil cylinder having a complex structure is removed, a connection manner between a steering oil cylinder and the vehicle axle is simplified, a control logic of steering and centering is simplified, the cost is greatly reduced, and at the same time, the fastness and the reliability of the steering system are improved.
Hydraulic steering system for engineering vehicle
2016-02-17
Patent
Electronic Resource
English
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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