The invention relates to a hydraulic system of a steering mechanism, the steering mechanism and engineering machinery, the hydraulic system of the steering mechanism is used for controlling forward running steering and reverse running steering of a vehicle, and the hydraulic system of the steering mechanism comprises a hydraulic pump (1); the unloading valve group (2) is arranged on an oil supply path of the hydraulic pump (1), and the unloading valve group (2) is configured to release the pressure of the hydraulic oil; the proportional control valve group (3) is arranged on a working oil way of the unloading valve group (2), and the proportional control valve group (3) is configured to control the steering direction and the steering angle of the first steering axle (10) and the steering angle of the second steering axle (20); the flow amplification valve group (4) is arranged between the proportional control valve group (3) and the steering oil cylinder (5), the flow amplification valve group (4) and the steering oil cylinder (5) are both located on a working oil way of the proportional control valve group (3), and the flow amplification valve group (4) is configured to amplify the flow of hydraulic oil entering the steering oil cylinder (5).

    本公开涉及一种转向机构液压系统、转向机构及工程机械,其中,转向机构液压系统用于控制车辆的正向行驶转向和反向行驶转向,转向机构液压系统包括:液压泵(1);卸荷阀组(2),设在液压泵(1)的供油油路上,卸荷阀组(2)被配置为卸除液压油的压力;比例控制阀组(3),设在卸荷阀组(2)的工作油路上,比例控制阀组(3)被配置为控制第一转向桥(10)和第二转向桥(20)的转向方向和转向角度;和流量放大阀组(4),设在比例控制阀组(3)和转向油缸(5)之间,流量放大阀组(4)和转向油缸(5)均位于比例控制阀组(3)的工作油路上,流量放大阀组(4)被配置为放大进入转向油缸(5)的液压油流量。


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    Title :

    Hydraulic system of steering mechanism, steering mechanism and engineering machinery


    Additional title:

    转向机构液压系统、转向机构及工程机械


    Contributors:
    HUANG YUFU (author) / HU JIANFENG (author) / SHI FUZENG (author)

    Publication date :

    2025-02-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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