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Valveless hydraulic servo synchronous system

A hydraulic servo, synchronous system technology, applied in the direction of fluid pressure actuation system components, servo motors, servo meter circuits, etc., to achieve the effect of huge economic and social benefits

Inactive Publication Date: 2016-05-11
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of oil circuit is only suitable for occasions where the change of external load is small or the requirements for the movement speed of the mechanism are not high

Method used

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Effect test

Embodiment 1

[0024] A valveless hydraulic servo synchronization system that uses multiple oil circuits, and each branch uses sensors to collect data on speed, pressure and displacement. The sub-controller on the oil circuit analyzes the data and then transmits it to the main controller. After the main controller compares, the data is fed back to the sub-controllers, and the sub-controllers act on the servo motor and the pump to adjust the resulting asynchrony.

[0025] Specific control method:

[0026] Take a certain oil circuit as an example and analyze its movement process. Since the oil circuit of the entire branch is exactly the same, the movement process of each oil circuit can be known.

[0027] When the servo motor is started, if the load is too large at this time, it is very likely that the motor cannot rotate, which deviates from the normal operation curve of the motor, and causes the motor to burn more seriously. At this time, reduce the displacement of the pump, that is, reduce its tor...

Embodiment 2

[0036] A valveless hydraulic servo synchronization system uses four oil circuits. Sensors are used on each branch to collect data on speed, pressure and displacement. The sub-controller on the oil circuit analyzes the data and transmits it to the main controller. After the controller compares, the data is fed back to the sub-controller, and the sub-controller acts on the servo motor and the pump to adjust the resulting asynchrony.

[0037] Specific control method:

[0038] Take a certain oil circuit as an example and analyze its movement process. Since the oil circuit of the entire branch is exactly the same, the movement process of each oil circuit can be known.

[0039] When the servo motor is started, if the load is too large at this time, it is very likely that the motor cannot rotate, which deviates from the normal operation curve of the motor, and causes the motor to burn more seriously. At this time, reduce the displacement of the pump, that is, reduce its torque. , The motor...

Embodiment 3

[0048] A valveless hydraulic servo synchronization system, using 6 oil circuits, each branch adopts sensors to collect data on speed, pressure and displacement, and the sub-controller on the oil circuit analyzes the data and then transmits it to the main controller. After the main controller compares, the data is fed back to the sub-controller, and the sub-controller acts on the servo motor and the pump to adjust the resulting asynchrony.

[0049] Specific control method:

[0050] Take a certain oil circuit as an example and analyze its movement process. Since the oil circuit of the entire branch is exactly the same, the movement process of each oil circuit can be known.

[0051] When the servo motor is started, if the load is too large at this time, it is very likely that the motor cannot rotate, which deviates from the normal operation curve of the motor, and causes the motor to burn more seriously. At this time, reduce the displacement of the pump, that is, reduce its torque. , T...

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Abstract

The invention discloses a valveless hydraulic servo synchronous system. Multiple oil paths are adopted, sensors are adopted on multiple branches to carry out data collection on the speed, the pressure and the displacement, and auxiliary controllers on the oil paths are used for analyzing the data and transmitting the data to a master controller. The master controller carries out the comparison and then feeds the data back to the auxiliary controllers. The auxiliary controllers act on servo motors and pumps, and generated desynchrony is adjusted. The valveless hydraulic servo synchronous system is high in control precision and efficiency.

Description

Technical field [0001] The invention relates to a valveless hydraulic servo synchronization system. Background technique [0002] The hydraulic synchronous control system is not a single system. It contains comprehensive content of many disciplines. It is an important research field in the integration of mechanical-electric-hydraulic technology. It is not only theoretically true, but also more and more applied in actual industrial production. widely. However, due to the limitation of production conditions and other factors, the processing accuracy requirements of the components used in the hydraulic synchronous control system are difficult to meet the strict conditions, and their performance cannot meet the requirements. In order to achieve the effect of synchronization, the movement of each cylinder should not interfere with each other, and its movement speed should not change with the change of external load. Traditional series synchronous hydraulic system: The working pressu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/08F15B11/22
CPCF15B21/087F15B11/22F15B2211/20515F15B2211/20546
Inventor 曹阳吴国庆邱锴文茅靖峰周井玲张旭东钟超超
Owner NANTONG UNIVERSITY
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