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A Hydraulic System Based on Unbalanced Moment Adaptive Compensation

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: 2022-06-24
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A Hydraulic System Based on Unbalanced Moment Adaptive Compensation
  • A Hydraulic System Based on Unbalanced Moment Adaptive Compensation
  • A Hydraulic System Based on Unbalanced Moment Adaptive Compensation

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Embodiment Construction

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

[0012] combine figure 1 , A hydraulic system based on self-adaptive compensation of unbalanced torque of the present invention includes an oil tank 1, a gear pump 2, a high-pressure oil filter 3, an oil return oil filter 4, an oil return air cooler 5, a pilot-operated 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 , actuating oil 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 o...

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Abstract

The invention discloses a hydraulic system based on self-adaptive compensation of unbalanced torque. The system combines a traditional active hydraulic balance system with a hydraulic control system, and realizes the adjustment of unbalanced torque by controlling the adjustable orifice on the oil return road. Adaptive compensation, so that one oil cylinder (actuating cylinder) is used to replace the original two oil cylinders (actuating cylinder and balance cylinder) for servo control, which is beneficial to solve the problem of difficult synchronous control of oil cylinders. The invention can adjust the opening size of the orifice through the pressure control of the rod cavity of the actuating oil cylinder, can effectively self-adapt to compensate the unbalanced moment, greatly simplifies the structure of the hydraulic system, and has great significance for improving the motion control performance of the large-load servo system of the cantilever .

Description

technical field [0001] The invention belongs to the field of hydraulic systems and their control, in particular to a hydraulic system based on self-adaptive compensation of unbalanced moments. Background technique [0002] 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 unbalance torque compensation methods mainly include passive compensation and active compensation. In the passive compensation method, the center of gravity is usually located on the rotary axis by means of counterweight, and its main disadvantage is that the extra counterweight makes the system bulky. In the active compensation method, the accumulator is often used to...

Claims

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Application Information

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Patent Type & Authority Patents(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