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Multi-motor hydraulic synchronous control system

A control system, hydraulic synchronization technology, applied in the direction of servo motors, fluid pressure actuators, mechanical equipment, etc., can solve problems such as nut failure, nut stuck, nut magazine can not move forward, etc., to achieve synchronization problems, high synchronization The effect of precision and simple structure

Inactive Publication Date: 2017-06-09
史树元
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  • Abstract
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AI Technical Summary

Problems solved by technology

If the rotation speed of a certain motor is too fast, when the linear speed of the nut helical movement is greater than the axial movement speed of the nut magazine, the nut will break away from the socket wrench, which will cause the motor to fail to drive the nut to rotate, and the bolt will fail to be introduced into the nut.
If the rotation speed of a certain nut sleeve is too slow, the nut will contact the rear end surface of the socket wrench, generating axial force, and the nut will appear "stuck" state, resulting in the inability of the nut magazine to move forward

Method used

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  • Multi-motor hydraulic synchronous control system

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with drawings and embodiments.

[0014] like figure 1 , The control system adopts an open-loop control system. The open-loop hydraulic synchronous control system has a throttle valve synchronous circuit, a speed control valve synchronous circuit, a diverter valve synchronous circuit, a synchronous diverter (synchronous diverter motor) synchronous circuit, and a parallel pump synchronous circuit.

[0015] The control system uses diverter valves for synchronous design, which requires 51 diverter valves, which is expensive, and the synchronization accuracy will decrease sharply after multi-stage diversion. This method considers the motor as an ideal state, and only controls the flow of hydraulic oil flowing into the motor, without considering the leakage of the motor and the influence of mechanical friction on the rotational speed. The synchronous circuit system controlled by the speed regulating valve ...

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Abstract

A multi-motor hydraulic synchronous control system adopts an open-loop control system. The open-loop hydraulic synchronous control system has a throttle valve synchronous circuit, a speed control valve synchronous circuit, a diverter valve synchronous circuit, a synchronous diverter (synchronous diverter motor) synchronous circuit, Parallel pumps synchronize the loop. The multi-motor control system has a simple structure, adopts an open-loop control system to achieve high synchronization accuracy, can effectively solve the multi-motor synchronization problem, and has certain practical application significance.

Description

technical field [0001] The invention relates to a multi-motor hydraulic synchronous control system, which is suitable for the mechanical field. Background technique [0002] With the development of offshore oilfield mining methods and technologies, submarine pipelines have been widely used in the development of offshore oilfields. Submarine oil pipelines with a water depth greater than 300m need to rely on underwater pipeline flange connection equipment to complete the connection. Pipeline flange connection equipment is mainly composed of bolt warehouse, nut warehouse, stretching module, frame and control system. The bolt store inserts the bolts into the bolt holes of the pipe flange, the nut store screw the nuts into the bolts, the tensioner stretches the bolts to the specified length, and the nut store tightens the nuts to complete the connection of the pipeline. [0003] The nut magazine is a key part of the flange connection machine tool, its main function is to carry ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/22
CPCF15B11/22
Inventor 史树元
Owner 史树元
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