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Hydraulic cylinder synchronous control system and control method thereof

A technology of synchronous control and control method, applied in fluid pressure actuators, servo motors, mechanical equipment, etc.

Active Publication Date: 2011-02-16
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An example of this is the synchronous control experiment of the side nozzle movable frame hydraulic cylinder of the large H-shaped steel rolled piece of Maanshan Iron and Steel Co., Ltd.

Method used

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  • Hydraulic cylinder synchronous control system and control method thereof
  • Hydraulic cylinder synchronous control system and control method thereof
  • Hydraulic cylinder synchronous control system and control method thereof

Examples

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Embodiment Construction

[0038] The present invention will be described in detail below according to the accompanying drawings, which is a preferred embodiment among various implementations of the present invention.

[0039] The hydraulic synchronous control system is composed of ordinary proportional regulating valve and ordinary reversing valve, and its typical hardware configuration diagram is as follows figure 1As shown, the equipment hardware of the hydraulic synchronous control system is mainly composed of two hydraulic cylinders with piston position detection encoders, a common reversing valve, a common proportional regulating valve, a hydraulic control check valve and a valve installed on the common reversing valve The latter two pipelines are composed of flow regulating valves and so on. Considering that the characteristics and response time of ordinary reversing valves and proportional control valves are quite different, and the characteristics and response time of a valve are not static, bu...

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Abstract

The invention relates to a hydraulic cylinder synchronous control system and a control method thereof. The system comprises an equipment body, more than one hydraulic cylinder, a common proportioning valve and a common reversing valve, wherein the hydraulic cylinders are connected and drive the equipment body. At least one of the hydraulic cylinders is connected with and controlled by the common proportioning valve and at least one of the left hydraulic cylinders is connected with and controlled by the common reversing valve.

Description

technical field [0001] The invention relates to the technical field of hydraulic transmission control, in particular to a hydraulic cylinder synchronous control system and a control method thereof. Background technique [0002] In industrial production, it is common to use two hydraulic cylinders to synchronously drive a piece of equipment. In order to realize the synchronization function between the two hydraulic cylinders, each hydraulic cylinder is usually controlled by a proportional regulating valve, and according to the speed of equipment movement and The type of proportional regulating valve is selected according to the requirement of synchronous precision of the hydraulic cylinder, that is, ordinary proportional regulating valve and high response proportional regulating valve. However, the proportional regulating valve is not only many times higher than the ordinary reversing valve in price (generally more than ten times), but also the failure rate of the proportiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/22
Inventor 叶光平
Owner MAANSHAN IRON & STEEL CO LTD
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