Total power controlled hydraulic system with pumps and working devices

A working device and hydraulic system technology, which is applied in fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problem of low efficiency of motor use, and achieve the goal of improving work efficiency, increasing power use, and increasing power output Effect

Active Publication Date: 2014-01-29
江苏天沃重工科技有限公司
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AI Technical Summary

Problems solved by technology

[0002] As the control of the pulling action system and auxiliary conveying action system in the hydraulic system of the rock scraper, the motor in the hydraulic system of the rock scraper has a rated power, that is, the sum of the actual power consumption of the variable pump and the fixed pump cannot exceed the motor. No matter

Method used

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  • Total power controlled hydraulic system with pumps and working devices

Examples

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Example Embodiment

[0010] The present invention will be further described below in conjunction with the drawings.

[0011] Such as figure 1 Shown: The present invention includes a motor 1, a variable pump 2, a quantitative pump 3, a triple multi-way valve 4, a first hydraulic pipeline 5 and an eight-gang multi-way valve 7. The motor 1 is connected to the variable pump 2 and the fixed pump 3. The output pressure oil of the pump 2 is input to the working device through the first hydraulic pipeline 5 through the eight-way multi-way valve 7, and the output pressure oil of the quantitative pump 3 is input to the working device through the first hydraulic pipeline 5 through the three-way multi-way valve 4, and also includes The second hydraulic pipeline 6 and the power controller 8, and the pressure oil signal of the quantitative pump 3 is input to the power controller 8 through the second hydraulic pipeline 6.

[0012] The power controller 8 is integrated in the variable pump 2, and the control effect is...

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Abstract

The invention discloses a total power controlled hydraulic system with pumps and working devices and belongs to the technical field of power control. The total power controlled hydraulic system comprises a motor, a variable pump, a metering pump, a triple multitandem valve, a first hydraulic pipeline and an eightfold multitandem valve. The motor is connected to the variable pump and the metering pump, pressure oil outputted by the variable pump is delivered into the working devices through the first hydraulic pipeline after passing the eightfold multitandem valve, and pressure oil outputted by the metering pump is delivered into the working devices through the first hydraulic pipeline after passing the triple multitandem valve. The total power controlled hydraulic system further comprises a second hydraulic pipeline and a power controller, and pressure oil signals of the metering pump are inputted to the power controller through the second hydraulic pipeline. The total power controlled hydraulic system has the advantages that operation efficiency of equipment is improved as a whole, the variable pump and the metering pump can give different play under different working conditions, and power output of the hydraulic system is increased.

Description

technical field [0001] The invention relates to a hydraulic system with multiple pumps and multiple working devices controlled by total power, belonging to the technical field of power control. Background technique [0002] As the control of the pulling action system and auxiliary conveying action system in the hydraulic system of the rock scraper, the motor in the hydraulic system of the rock scraper has a rated power, that is, the sum of the actual power consumption of the variable pump and the fixed pump cannot exceed the motor. No matter whether the circuit where the constant pump is located is under high load or low load conditions, the power of the two pumps will not change. Therefore, when the circuit where the fixed pump is located is under low load conditions, the power of the variable pump will not change. changes, resulting in inefficient use of the motor's power. Contents of the invention [0003] Aiming at the above-mentioned problems in the prior art, the pr...

Claims

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Application Information

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IPC IPC(8): F15B13/02
Inventor 侯友夫
Owner 江苏天沃重工科技有限公司
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