Load sensitive turning hydraulic system of loading machine
A load-sensitive steering system technology, applied in fluid steering mechanisms, mechanical equipment, fluid pressure actuating devices, etc., can solve problems affecting loader performance and return on investment, high labor intensity for drivers, and poor steering performance, etc., to achieve Achieve mass production, improve operating efficiency, and improve steering performance
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[0013] The present invention will be described in detail below in conjunction with the drawings.
[0014] The invention includes:
[0015] Steering system: The steering system is mainly composed of hydraulic oil tank 1, first load sensitive constant pressure variable plunger pump 2, pressure reducing valve 3, small displacement steering gear 4, flow with priority valve function and load signal feedback function Amplifying valve 5, left steering cylinder 6, right steering cylinder 7, one-way valve 8 and shuttle valve 9. The load-sensitive constant pressure variable plunger pump 2 provides working oil pressure to the flow amplifying valve 5 and the steering gear 4. The load feedback pressure signal of the flow amplifying valve 5 controls the LS control valve of the load-sensitive constant pressure variable piston pump 2; the L port of the steering gear 4 is connected to the right end of the main spool valve L of the flow amplifying valve 5, and the R port is connected The right end ...
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