| 摘要 |
A hydraulic apparatus based on a confluence control mode, comprising a load sensing unit provided with a first and a second reversing valves (1, 2), and a throttle governing unit provided with a fourth reversing valve (3). A confluence valve (5) and a one-way valve (6), which are communicated with the load sensing unit and the throttle governing unit, are arranged on a parallel oil path arranged in parallel with the fourth reversing valve (3). The confluence valve (5) is provided with a confluence channel (50) that controls opening and closing of the parallel oil path to shunt fluid of the throttle governing unit to the load sensing unit. A first pilot pressure (P1) acting on the first reversing valve (1) and a second pilot pressure (P2) acting on the second reversing valve (2) act on the confluence valve (5) independently or simultaneously to change a position of the confluence channel (50), thus implementing reversing of the confluence valve (5). With the confluence valve (5) being configured to be communicated with the load sensing unit and the throttle governing unit, a flow of the throttle governing unit can be shunted to the load sensing unit in time, thus avoiding the occurrence that an executive element in a system is slow in action, low in efficiency, and consumes energy of a hydraulic motor, and enabling the system to run with high efficiency and low energy consumption. |
