Hydraulic Apparatus Based on Confluence Control Mode

摘要

A hydraulic apparatus based on a confluence control mode includes a load sensing unit provided with first and second reversing valves, and a throttle governing unit provided with a fourth reversing valve. A confluence valve and a one-way valve, which communicate 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. The confluence valve includes a confluence channel 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 acting on the first reversing valve and a second pilot pressure acting on the second reversing valve act on the confluence valve independently or simultaneously to change a position of the confluence channel, thus implementing reversing of the confluence valve.

主权项

1. A hydraulic apparatus based on a confluence control mode, comprising a load sensing unit provided with a first reversing valve and a second reversing valve, and a throttle governing unit provided with a fourth reversing valve, wherein
a confluence valve and a one-way valve, 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, the confluence valve is provided with a confluence channel that controls opening and closing of the parallel oil path to shunt fluid of the throttle governing unit to the load sensing unit, a fourth executive element implements reversing of the confluence valve during action being connected to the fourth reversing valve, and when the first reversing valve reverses due to a first pilot pressure thereof acting thereon, when the second reversing valve reverses due to a second pilot pressure thereof acting thereon, and when the fourth reversing valve reverses due to a fourth pilot pressure thereof acting thereon, the first pilot pressure and the second pilot pressure also act on the confluence valve independently or simultaneously to change a position of the confluence channel so as to implement reversing of the confluence valve.