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Hydraulic servo control system using servo motor and digital valve

A servo motor and control system technology, applied in the direction of servo motors, mechanical equipment, fluid pressure actuators, etc., can solve the problems of the size change of the orifice, the influence of the system control effect, and the unavoidable thread gap, etc., so as to achieve reasonable setting, Low production cost and low supersonic effect

Inactive Publication Date: 2018-06-15
苏州铁马自动化科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the digital valve adopts thread transmission, the thread gap is unavoidable
The thread gap will cause the size of the orifice to change with the change of pressure, which will eventually affect the overall control effect of the system, which needs to be improved urgently

Method used

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  • Hydraulic servo control system using servo motor and digital valve

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] see as figure 1 As shown, the technical solution adopted in this specific embodiment is: it includes a man-machine system 1, a controller 2, a servo oil source 3, an integrated valve plate 4, and a hydraulic cylinder 5; the man-machine system 1 is connected to the controller 2, and the controller 2 is connected to the hydraulic cylinder 5; wherein the servo oil source 3 is composed of a servo motor 6, a servo oil pump 7 and an oil source 8, the servo motor 6 is connected to the servo oil pump 7, the servo oil pump 7 is connected to the oil source 8, and the servo motor 6 is connected to the controller 2; the integrated valve plate 4 is composed of a valve plate 9, a relief valve 10 and a digital valve 11; wherein, the relief valve 10 and the digital valve 11 are connected to the valve plate 9, and the valve The plate 9 is connected with the servo oil pump 7; th...

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PUM

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Abstract

The invention discloses a hydraulic servo control system using a servo motor and a digital valve, and relates to the technical field of hydraulic control systems. A human-machine system is connected with a controller, and the controller is connected with a hydraulic oil cylinder; a servo oil source is composed of the servo motor, a servo oil pump and an oil source, the servo motor is connected with the servo oil pump, the servo oil pump is connected with the oil source, and the servo motor is connected with the controller; an integrated valve plate is composed of a valve plate, an overflow valve and the digital valve; the overflow valve and the digital valve are both connected to the valve plate, and the valve plate is connected to the servo oil pump; the overflow valve is connected to theoil source; the digital valve is connected to the hydraulic cylinder. The flutter function of the digital valve is achieved on the controller to ensure the stability of an orifice under different system pressures, and the practicality is higher.

Description

technical field [0001] The invention relates to the technical field of hydraulic control systems, in particular to a hydraulic servo control system using a servo motor and a digital valve. Background technique [0002] The hydraulic servo system enables the output of the system, such as displacement, speed or force, to automatically, quickly and accurately follow the change of the input, and at the same time, the output power is greatly amplified. The hydraulic servo system has been widely used in industrial control due to its unique advantages such as fast response speed, high load rigidity, and large control power. Hydraulic servo control is a complex hydraulic control method. The hydraulic servo system is a closed-loop hydraulic control system. [0003] Current hydraulic servo control systems require digital valves to open tiny orifices during loading to provide expected stable leakage. However, since the digital valve adopts thread transmission, the thread gap is inev...

Claims

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Application Information

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IPC IPC(8): F15B11/08F15B11/028F15B11/04
CPCF15B11/08F15B11/028F15B11/04
Inventor 陈海生裴磊林潇
Owner 苏州铁马自动化科技有限公司
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