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Hydraulic system based on self-adaptive compensation of unbalance torque

An adaptive compensation and hydraulic system technology, applied in fluid pressure actuation system components, fluid pressure actuation system testing, fluid pressure actuation devices, etc., can solve the problem of difficult synchronous control of the compensation cylinder and the actuation cylinder, and achieve The effect of reducing system cost, simplifying hydraulic system structure, and improving control accuracy

Active Publication Date: 2020-11-17
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a hydraulic system based on unbalanced torque adaptive compensation to solve the problem of difficult synchronous control of the compensation cylinder and the actuation cylinder

Method used

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  • Hydraulic system based on self-adaptive compensation of unbalance torque
  • Hydraulic system based on self-adaptive compensation of unbalance torque
  • Hydraulic system based on self-adaptive compensation of unbalance torque

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Embodiment Construction

[0011] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0012] combine figure 1 , a hydraulic system based on unbalanced torque adaptive compensation of the present invention, including a fuel tank 1, a gear pump 2, a high-pressure oil filter 3, an oil return filter 4, an oil return air cooler 5, a pilot relief valve 6, System pressure reducing valve 7, three-position four-way proportional solenoid valve 8, adjustable electromagnetic throttle valve 0, controller 10, pressure sensor 11, and actuating cylinder 12.

[0013] One end of the gear pump 2 is connected to the oil tank 1, and the other end is connected to the high-pressure oil filter 3. The hydraulic oil is extracted from the oil tank 1 and transmitted to the high-pressure oil filter 3. The oil outlet of the high-pressure oil filter 3 is connected to the pilot overflow The oil inlet of the valve 6 is connected, the oil outlet of the pilot r...

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PUM

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Abstract

The invention discloses a hydraulic system based on self-adaptive compensation of unbalance torque. The system combines a traditional driving type hydraulic balancing system with a hydraulic control system, by controlling an adjustable throttling hole in an oil return oil way, self-adaptive compensation of the unbalance torque is achieved, thus one oil cylinder (actuating oil cylinder) is used forreplacing original two oil cylinders (actuating oil cylinder and balancing oil cylinder) to carry out servo control, and the problem that synchronous control over the oil cylinders is difficult is solved beneficially. According to the system, by means of pressure of a rod cavity of the actuating oil cylinder, the opening degree of the adjustable throttling hole can be controlled, the unbalance torque can be effectively compensated in a self-adaptive manner, the structure of the hydraulic system is simplified greatly, and the system has great significance in improving motion control performance of a cantilever large-load servo system.

Description

technical field [0001] The invention belongs to the field of hydraulic systems and their controls, and in particular relates to a hydraulic system based on unbalanced moment self-adaptive compensation. Background technique [0002] The hydraulic servo system has the advantages of large output force / torque, fast response speed, and high precision, and is widely used in the fields of defense industry, robotics, and factory automation. When the load does not move in the horizontal plane, the unbalanced moment due to gravity has a great influence on the performance of the hydraulic control system. At present, the commonly used unbalanced moment compensation methods mainly include passive compensation and active compensation. In the passive compensation method, the counterweight is usually used to make the center of gravity on the rotary shaft, and its main disadvantage is that the extra counterweight makes the system bulky. In the active compensation method, the accumulator is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/028F15B11/08F15B19/00F15B21/041
CPCF15B11/028F15B11/08F15B21/041F15B19/00
Inventor 钱林方陈龙淼邹权徐亚栋陈光宋王满意孙乐尹强陈红彬羊柳干金杰
Owner NANJING UNIV OF SCI & TECH