Double-pump oil supply fast-control system

Abstract

The invention discloses a double-pump oil supply fast-control system. The double-pump oil supply fast-control system comprises a hydraulic cylinder and is characterized by also comprising a low-pressure large-flow pump, a high-pressure small-flow pump, a reversing valve and a throttling valve, wherein the high-pressure small-flow pump is connected with the hydraulic cylinder by a pipeline on which the throttling valve is arranged; the pipelines on two sides of the throttling valve are connected with the reversing valve; the low-pressure large-flow pump is connected with a pipeline for connecting the high-pressure small-flow pump and the hydraulic cylinder by a branch pipeline on which a one-way valve is arranged. The double-pump oil supply fast-control system disclosed by the invention has the advantages that the problems that the hydraulic cylinder adopts a single pump for supplying oil generally, the application range is smaller, the use effect is poorer, the oil returning efficiency is poorer, the power consumption is higher, and the use need cannot be met in the prior art are solved; the structure is simple, the use is convenient, a duplex pump can be provided as a power source, the power consumption is less, the oil returning efficiency is higher, and the use is safer and more reliable.

Description

technical field [0001] The invention relates to a control system, in particular to a dual-pump oil supply rapid control system. Background technique [0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swing motion). It has simple structure and reliable operation. When it is used to realize reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the motion is stable, so it is widely used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides. However, the current hydraulic cylinders mostly use a single pump for oil supply, which has a small application range, poor use effect, poor oil return efficiency, and high power consumption, which cannot meet the needs of use. Contents of the invention [0003] In...

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Problems solved by technology

[0003] In order to solve the problems in the prior art that hydraulic cylinders mostly use a single pump to supply oil, the scope of application is small, the use effect is poor, the oil return efficiency is poor, the power consumption is high, and the use needs cannot be met, the present invention provides a Simple structure, easy to use, can provide dual pumps as power source, low power consumption, high return efficiency, use safer and more reliable dual pump oil supply rapid control system

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