Energy recovery device in shield duct piece assembling driving system

An energy recovery device and drive system technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, shaft equipment, etc., can solve problems such as gravity load energy waste, avoid energy loss, high energy transfer efficiency, The effect of obvious energy saving effect

Inactive Publication Date: 2009-11-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional segment assembly hydraulic system, the control of these two actions is realized by means of throttling elements. In the case of acting on gravity and acting on gravity, the system has throttling loss, and all the gravity load energy is wasted.

Method used

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  • Energy recovery device in shield duct piece assembling driving system

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with drawings and embodiments.

[0011] As shown in the drawings, the motor 2 in the present invention is rigidly connected to the pump 3, the oil suction port of the pump 3 is connected to the oil tank 1, the oil outlet of the pump 3 is connected to the oil inlet of the one-way valve 4 and the oil inlet of the relief valve 5 Connection, check valve 4 oil outlet and accumulator 6 oil inlet, relief valve 5 control oil port, P1 port of the first three-position four-way reversing valve 7, P port and A port of hydraulic transformer 10 , The first one-way valve 8.1 and the second one-way valve 8.2 are connected to the oil outlet and the actuator, the third one-way valve 8.3 and the fourth one-way valve 8.4 are connected to the oil tank 1, and the first three-position four-way switch The A1 port of the directional valve 7 is connected with the oil port at one end of the hydraulic motor / pump 9, the oil inlet ...

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Abstract

The invention discloses an energy recovery device in a shield duct piece assembling driving system, comprising an electric motor, a pump, a one-way valve, a hydraulic motor/pump, a relief valve, an energy accumulator, a three position four-way directional control valve, a hydraulic pressure transformer and a hydraulic cylinder. The system adopts the motor/pump, the energy accumulator and the hydraulic pressure transformer as energy conversion and recovery elements, converts part of the mechanical energy in the circumferential rotation and vertical lifting movement shield duct piece assembling machine into hydraulic energy, and stores the hydraulic energy to be used for assembly. The actuator element motor/pump of the hydraulic system drives the assembling machine to rotate when working at the state of motor, and feeds the load energy back to the energy accumulator when working at the state of pump. By switching the working states of the hydraulic transformer, the lifting of a lifting hydraulic cylinder and the recovery of gravity loading energy are realized. As no throttling element is arranged in the system, the energy transmission efficiency is high, energy loss in a throttle governing system is avoided, and the system has obvious energy conservation effect.

Description

technical field [0001] The invention relates to a fluid pressure actuator, in particular to an energy recovery device in a shield segment assembly drive system. Background technique [0002] Segment assembly is a key step in tunneling and forming. As a major part of the shield tunneling machine, the segment assembly system undertakes the task of assembling the prefabricated segments along the tunnel excavated by the shield. During the segment assembly process, the assembly machine usually needs to have a sufficient number of degrees of freedom to reach any position in the annular tunnel for assembly operations. The freedom of position and attitude is achieved by the action of each actuator in the assembled drive hydraulic system. Among the many actions of segment assembly, the two actions of circumferential rotation and vertical lifting are completed in the vertical plane, so the system bears typical gravity loads. The segment assembly mechanism itself often weighs severa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/14E21D11/04
Inventor 龚国芳施虎杨华勇朱北斗
Owner ZHEJIANG UNIV
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