The invention discloses a multi-mode steering hydraulic system of a multi-axle semitrailer, the multi-axle semitrailer comprises a tractor and a semitrailer, the tractor and the semitrailer are linkedthrough a gooseneck slewing mechanism, the gooseneck slewing mechanism comprises a locking oil cylinder and a bolt which are used for locking the tractor and the semitrailer, and a wheel steering mechanism is installed on the semitrailer. The wheel steering mechanism comprises a centering oil cylinder and a steering oil cylinder; the multi-mode steering hydraulic system comprises a hydraulic source, a bolt valve group, a steering valve group, a bolt energy accumulator, a centering energy accumulator and a pipeline, the hydraulic source is arranged on the tractor, and the bolt valve group, thesteering valve group and the energy accumulator are arranged on the semitrailer. The complex multi-mode steering hydraulic system of the multi-axle semitrailer is achieved through a single hydraulicpump source, switching of steering modes is fast, reliable and safe, and the system can adapt to semitrailer auxiliary steering modes, semitrailer centering modes and semitrailer single-body automobile modes under various working conditions.
本发明公开了一种多轴半挂车的多模式转向液压系统,所述多轴半挂车包括牵引车和半挂车,通过鹅颈回转机构进行联动,鹅颈回转机构包括有用于将牵引车与半挂车锁定的锁止油缸和插销,半挂车上安装有车轮转向机构,车轮转向机构包括有对中油缸和转向油缸;所述多模式转向液压系统包括液压源、插销阀组、转向阀组、插销蓄能器、对中蓄能器及管路,所述液压源布置在牵引车上,插销阀组、转向阀组、蓄能器布置在半挂车上。本申请采用单一液压泵源实现了复杂的多轴半挂车的多模式转向液压系统,转向模式的切换快捷、可靠、安全,能够适应多种工况的半挂车辅助转向模式、半挂车对中模式、半挂车“单体汽车”模式。
Multi-mode steering hydraulic system of multi-axle semitrailer
一种多轴半挂车的多模式转向液压系统
2021-02-23
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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