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Hydraulic control system for rear matching trailer wheel set of shield machine

A hydraulic control system and rear supporting technology, which is applied to fluid pressure actuating system components, mechanical equipment, fluid pressure actuating devices, etc. demand, cost savings, guaranteed accuracy

Pending Publication Date: 2019-05-28
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a hydraulic control system for the supporting trailer wheels of the shield machine, which solves the technical problems of poor walking stability and complicated control operation of the supporting trailer of the existing shield machine

Method used

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  • Hydraulic control system for rear matching trailer wheel set of shield machine
  • Hydraulic control system for rear matching trailer wheel set of shield machine
  • Hydraulic control system for rear matching trailer wheel set of shield machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, a hydraulic control system for trailer wheel pairs behind a shield machine, such as Figure 1-4 As shown, the hydraulic pump 5 driven by the motor 1 is included, the oil inlet of the hydraulic pump 5 is connected with the oil tank 2, and the oil outlet is connected with the hydraulic control valve and the leveling cylinder 16 in turn through the hydraulic pipeline, and the telescopic cylinder of the leveling oil cylinder 16 It is connected with the wheel set of the matching trailer behind the shield machine. Through the oil supply of the hydraulic pump 5 to the leveling cylinder 16, the state of the wheel set of the supporting trailer behind the shield machine can be conveniently adjusted, thereby preventing the supporting trailer of the shield machine from tilting away from the predetermined direction.

[0021] The leveling oil cylinder 16 has a built-in displacement sensor for monitoring the action of the telescopic cylinder, and the displacement sensor ...

Embodiment 2

[0024] Embodiment 2, a hydraulic control system for a trailer wheel pair behind a shield machine, the leveling cylinder 16 is a double-rod cylinder, and the double-rod cylinder includes a first oil chamber and a second oil chamber that are symmetrical to each other, and the first The longitudinal sectional area of ​​the oil chamber and the second oil chamber are equal, which ensures the accuracy of the alignment of the left and right wheelsets.

[0025] The electromagnetic reversing valve 12 is arranged in front of the electromagnetic ball valve 14. The electromagnetic reversing valve 12 is provided with two output oil pipes, one of which is connected to the first oil chamber, and the other is connected to the oil inlet of the electromagnetic ball valve 14. connected, and the oil outlet of the electromagnetic ball valve 14 is connected with the second oil chamber. The PLC control unit separately controls the electromagnetic ball valve 14 and the electromagnetic reversing valve...

Embodiment 3

[0033] Embodiment 3 is a hydraulic control system for a trailing wheel set behind a shield machine, and a superposition balance valve 13 is arranged between the electromagnetic reversing valve 12 and the electromagnetic ball valve 14 . The application of the superimposed balance valve 13 can balance the load and make the operation of the double-rod cylinder more stable. At the same time, the superimposed balance valve 13 can maintain the pressure of the double-rod cylinder to maintain the load.

[0034] Other structures of this embodiment are the same as Embodiment 1 or 2.

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Abstract

The invention discloses a hydraulic control system for a rear matching trailer wheel set of a shield machine, and solves the technical problems of poor walking stability and complex control operationof a rear matching trailer of an existing shield machine. The hydraulic control system comprises a hydraulic pump driven by a motor, wherein an oil inlet of the hydraulic pump is connected with an oiltank, and the oil outlet is sequentially connected with hydraulic control valves and leveling oil cylinders through a hydraulic pipeline, a telescopic cylinder of each leveling oil cylinder is connected with the rear matching trailer wheel set of the shield machine, a displacement sensor for monitoring the action of the telescopic cylinder is arranged in each leveling oil cylinder, a displacementsensor is connected with a PLC (programmable logic controller) control unit, each hydraulic control valve comprises an electromagnetic reversing valve and electromagnetic ball valves, and the electromagnetic reversing valve and the electromagnetic ball valves are all connected with the PLC control unit. The hydraulic control system has the advantages that the operation is simple, the monitoring is accurate, the feedback is timely, the correction speed is high, and the rear matching trailer of the shield machine can stably and accurately walk in a given direction.

Description

technical field [0001] The invention relates to the technical field of wheel set hydraulic control, in particular to a hydraulic control system for a trailer wheel set behind a shield machine. Background technique [0002] With the continuous progress of human civilization, the environmental pollution of urban ground transportation has attracted more and more attention. How to develop and utilize urban underground space more efficiently has become an issue of concern to the industry. In the construction of urban tunnels, the shield construction method has unique advantages. Affect urban ground transportation, normal life of urban residents, obtain good engineering quality and high construction speed, etc., and rapidly promote and develop. [0003] The walking mode of the supporting trailer behind the shield machine is mainly divided into two types: trackless and trackless. Trackless walking refers to the use of rubberized wheels to walk directly on the segments. This method ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/02F15B21/041F15B13/06F15B13/02F15B13/01F15B11/22E21D9/06E21D9/093
Inventor 朱雷张瑜峰王远志黄剑庞文卓
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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