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Shield tunnelling machine series-connection connection double-piston-rod symmetrical hydraulic oil cylinder propulsion system

A technology of hydraulic cylinders and double piston rods, which is applied in the direction of fluid pressure actuation system components, mechanical equipment, fluid pressure actuation devices, etc. It can solve the problems of affecting the life of equipment, large throttling loss, waste of energy, etc., and achieve energy loss Small size, easy installation and maintenance, and simple structure

Pending Publication Date: 2019-03-12
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing propulsion hydraulic system adopts the valve control method, which not only has a large throttling loss, wastes energy, affects the life of the equipment, but also deteriorates the construction environment and brings many unfavorable factors

Method used

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  • Shield tunnelling machine series-connection connection double-piston-rod symmetrical hydraulic oil cylinder propulsion system
  • Shield tunnelling machine series-connection connection double-piston-rod symmetrical hydraulic oil cylinder propulsion system

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Embodiment Construction

[0013] Attached below figure 1 And embodiment further illustrate the present invention.

[0014] Such as figure 1 As shown, the present invention comprises servomotor 1, quantitative pump 2, safety valve 5, one-way valve 10, charging oil pump 12, motor 13 and several partition propulsion systems with the same structure; Each partition propulsion system is provided by the same quantitative pump. Source power; each partition propulsion system consists of several symmetrical double-piston rod hydraulic cylinders with the same structure, including the first hydraulic cylinder 7, the second hydraulic cylinder 8, etc.; the output shaft of the servo motor 1 is rigid to the input shaft of the quantitative pump 2 The oil port at the left end of the quantitative pump 2 is connected with the oil port at the left end of the first hydraulic cylinder 7 and the oil inlet of the safety valve 5 through the oil pipe 3, and the oil port at the right end of the quantitative pump 2 is connected w...

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Abstract

The invention provides a shield tunnelling machine series-connection connection double-piston-rod symmetrical hydraulic oil cylinder propulsion system. The shield tunnelling machine series-connectionconnection double-piston-rod symmetrical hydraulic oil cylinder propulsion system mainly comprises a servo motor, a metering pump, a safety valve, an oil replenishing pump and a plurality of zonal propulsion system bodies composed of double-piston-rod symmetrical hydraulic oil cylinders of same structures, wherein an output shaft of the servo motor is in rigid connection with an input shaft of themetering pump, the left end oil mouth of the metering pump is connected with the left end oil mouth of the first hydraulic oil cylinder and an oil inlet of the safety valve through oil pipes correspondingly, the right end oil mouth of the metering pump is connected with the right end oil mouth of the second hydraulic oil cylinder through one oil pipe, and the right end oil mouth of the first hydraulic oil cylinder is connected with the left end oil mouth of the second hydraulic oil cylinder through one oil pipe. According to the shield tunnelling machine series-connection connection double-piston-rod symmetrical hydraulic oil cylinder propulsion system, synchronous control of all the zonal propulsion hydraulic oil cylinders is easy to realize, a pump-control-cylinder direct drive type volume speed regulation system is adopted, energy loss is low, energy is significantly saved, the propulsion system bodies share one same oil source, and the shield tunnelling machine series-connection connection double-piston-rod symmetrical hydraulic oil cylinder propulsion system is simple in structure and convenient to install and maintain.

Description

technical field [0001] The invention relates to a hydraulic propulsion system of a shield tunneling machine, which belongs to the technical field of hydraulic transmission. Background technique [0002] The shield tunneling machine is a kind of integrated mechanical, electrical, hydraulic and other technologies dedicated to the construction of underground tunnels. It is a typical multi-system complex electromechanical and hydraulic integrated equipment, which can realize the mechanization and automation of tunnel excavation. The hydraulic propulsion system of the shield tunneling machine provides the driving force for the advancement of the shield, which is usually completed by a certain number of hydraulic cylinders distributed along the circumferential direction of the shield. Individual control is required to meet the requirements of curve excavation, deflection correction, and individual retreat during segment assembly. At the same time, the pressure and flow of the prop...

Claims

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Application Information

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IPC IPC(8): F15B21/08E21D9/093
CPCE21D9/093F15B21/08
Inventor 臧发业孔祥臻尹修杰王保平陈正洪杨仁明戴汝泉
Owner SHANDONG JIAOTONG UNIV
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