The invention relates to a vehicle steering and lifting device and a mining dump truck, the vehicle steering and lifting device comprises a steering pump, a lifting pump, a priority valve, a steering gear, a steering oil cylinder, a lifting valve group, a lifting oil cylinder, a radiator and a switching module, the steering pump and the lifting pump are connected in series, and the steering pump supplies oil to the steering oil cylinder through the priority valve and the steering gear; the lifting pump supplies oil to the lifting oil cylinder through the lifting valve set, the priority valve is further connected to the switching module and used for enabling pressure oil output by the steering pump to be selectively supplied to the steering gear or the switching module, and the switching module is connected to the radiator and the lifting valve set so as to communicate the priority valve with the radiator or communicate the priority valve with the lifting valve set. According to the vehicle steering lifting device and the mining dump truck, by arranging the switching module, on the premise that a duplex pump is adopted, hydraulic oil output by the steering pump can be cooled through the radiator, the temperature of a system is prevented from being too high, and the service life of the system is guaranteed while the cost is reduced; the steering pump and the lifting pump can converge, and the lifting speed can be increased.
一种车辆转向举升装置及矿用自卸车,该车辆转向举升装置包括转向泵、举升泵、优先阀、转向器、转向油缸、举升阀组、举升油缸、散热器和切换模组,转向泵和举升泵串联,转向泵通过优先阀和转向器向转向油缸供油,举升泵通过举升阀组向举升油缸供油,优先阀还连接于切换模组,用于使转向泵输出的压力油择一地提供给转向器或切换模组,切换模组连接于散热器和举升阀组,以连通优先阀与散热器或优先阀与举升阀组。本车辆转向举升装置及矿用自卸车中,通过设置切换模组,可在采用双联泵的前提下,使转向泵输出的液压油通过散热器进行散热,避免系统温度过高,在降低成本的同时保证系统寿命;转向泵可与举升泵双泵合流,可提升举升速度。
Vehicle steering and lifting device and mining dump truck
车辆转向举升装置及矿用自卸车
2023-07-04
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
Steering, lifting and converging hydraulic system of mining dump truck
European Patent Office | 2021
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