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Shield tunneling machine propelling system connected with single-piston-rod symmetric hydraulic oil cylinders in series

A hydraulic cylinder and propulsion system technology, applied in the direction of fluid pressure actuation system safety, fluid pressure actuation system components, mechanical equipment, etc., can solve the problems of affecting equipment life, wasting energy, throttling loss, etc., and achieve energy loss Small, increased flexibility effect

Pending Publication Date: 2019-03-29
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 tunneling machine propelling system connected with single-piston-rod symmetric hydraulic oil cylinders in series
  • Shield tunneling machine propelling system connected with single-piston-rod symmetric hydraulic oil cylinders in series

Examples

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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 includes several partition propulsion systems with the same structure, and each quantitative pump provides power as an independent oil source of the corresponding partition propulsion system, and the hydraulic circuit of each partition propulsion system is mutually connected with the hydraulic circuits of other partition propulsion systems. Independent hydraulic circuit; each partition propulsion system includes servo motor 1, quantitative pump 2, safety valve 5, first hydraulic cylinder 6, second hydraulic cylinder 8, third hydraulic cylinder 10, check valve 13, charge pump 15, Composed of motor 16, etc.; the output shaft of servo motor 1 is rigidly connected to the input shaft of quantitative pump 2, and the oil port at the left end of quantitative pump 2 is respectively connected to the oil inlet at the left end of the first hydr...

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Abstract

The invention discloses a shield tunneling machine propelling system connected with the single-piston-rod symmetric hydraulic oil cylinders in series. The shield tunneling machine propelling system ismainly composed of a plurality of partition propelling systems with the same structure, each partition propelling system comprises a servo motor, a quantitative pump, a safety valve and a plurality of single-piston-rod symmetric hydraulic oil cylinders with the same structure, wherein the output shaft of the servo motor is rigidly connected with the input shaft of the quantitative pump, the leftend oil port of the quantitative pump is connected with the left end oil port of a first hydraulic oil cylinder and the oil inlet of the safety valve, the right end oil port is connected with the right end oil port of the third hydraulic oil cylinder; the left end oil port is connected with the right end oil port of the third hydraulic oil cylinder, the right end oil port is connected with the right end oil port of a third hydraulic oil cylinder. According to the shield tunneling machine propelling system, the oil circuits among the first hydraulic oil cylinder, a second hydraulic oil cylinderand the third hydraulic oil cylinder are connected in series, so that the synchronous control of the hydraulic oil cylinders of all the partitions is easy to achieve, and the shield tunneling machinepropelling system is very suitable for small and medium-sized shield tunneling machines; the hydraulic oil circuits of all the propelling systems are independent from one another, and can be independently controlled and can also be coordinated and controlled, and the flexibility of system control is improved; and a direct-drive type volume speed regulation system of a pump control cylinder is adopted, so that the system is energy-saving and remarkable.

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): F15B11/22F15B11/17F15B11/042F15B13/06F15B20/00F15B21/00E21D9/093
CPCE21D9/093F15B11/0423F15B11/17F15B11/22F15B13/024F15B13/06F15B20/005F15B21/005F15B2211/275F15B2211/255F15B2211/20538F15B2211/20515F15B2211/88
Inventor 臧发业戴汝泉张东升杨仁明陈正洪
Owner SHANDONG JIAOTONG UNIV
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