The invention provides a hydraulic steering system, a control method of the hydraulic steering system and a dumper. The hydraulic steering system comprises a hydraulic oil tank, a steering gear, a steering oil cylinder, a main reversing loop and an emergency reversing loop. The main reversing loop comprises a first oil inlet pipeline arranged between an oil inlet of the steering gear and the hydraulic oil tank and a first oil return pipeline arranged between an oil outlet of the steering gear and the hydraulic oil tank, and a main steering pump is arranged on the first oil inlet pipeline; the emergency reversing loop comprises a second oil inlet pipeline connected with the first oil inlet pipeline in parallel and a first return pipeline, an emergency steering pump, a prefill valve and an energy accumulator are sequentially arranged on the second oil inlet pipeline, the emergency steering pump can charge liquid and store energy to the energy accumulator through the prefill valve, and the energy accumulator can supply oil to an oil inlet of the steering gear through the second oil inlet pipeline; the steering gear is connected with the steering oil cylinder and used for providing hydraulic oil for the steering oil cylinder so as to drive the steering oil cylinder to act. According to the hydraulic steering system, the rapidity of emergency steering response can be improved.
本发明提供了一种液压转向系统及其控制方法与自卸车,本发明的液压转向系统包括液压油箱、转向器、转向油缸及主换向回路和应急换向回路;主换向回路包括设于转向器的进油口和液压油箱之间的第一进油管路,以及设于转向器的出油口和液压油箱之间的第一回油管路,第一进油管路上设有主转向泵;应急换向回路包括与第一进油管路并联的第二进油管路,以及第一回流管路,第二进油管路上依次设有应急转向泵、充液阀和蓄能器,应急转向泵通过充液阀可向蓄能器充液蓄能,蓄能器能够通过第二进油管路向转向器的进油口供油;转向器与转向油缸相连,且转向器用于为转向油缸提供液压油,以驱使转向油缸动作。本发明的液压转向系统可提高应急转向响应的快速性。
Hydraulic steering system, control method thereof and dumper
液压转向系统及其控制方法与自卸车
2024-02-02
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Four-wheel full-hydraulic steering system of unmanned off-highway dumper
Europäisches Patentamt | 2022
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