Large-flow quick throttle proportional valve
A technology of proportional valve and large flow, which is applied in fluid pressure actuators, servo motor components, mechanical equipment, etc., and can solve the problem of servo valve cost, high use and maintenance costs, short action time, and proportional valves that are difficult to meet the flow and flow requirements at the same time. Action time and other issues, to achieve important application and economic value, reduce the effect of application costs
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[0016] The present invention will be further described below in conjunction with the drawings and embodiments.
[0017] Such as figure 1 As shown, a large flow fast throttle proportional valve includes a main stage cartridge valve component and a pilot control valve block component, among which:
[0018] The main stage cartridge valve components include the main valve core 6, the main valve seat 7 and the return spring 8. The main valve core 6 is matched with the main valve seat 7, and the lower cavity of the main valve core 6 is equipped with a return spring 8 connected to the main valve seat 7 , The upper end of the main spool 6 is matched with the lower end of the proportional valve stem 5 in the pilot control valve block component, and the lower end of the main spool 6 is opened with a throttle window C1;
[0019] Pilot control valve block components include three-way proportional pressure reducing valve 2, piston cylinder 3, adjusting spring 4, proportional valve stem 5, one...
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