A kind of jack for changing the rolling angle of the shield machine

Abstract

The invention provides a jack used for changing the rolling angle of a shield tunneling machine. The jack is used for the rolling angle correction of the shield tunneling machine during shield construction. The shield tunneling machine comprises a cutter head located on a front end, a shield shell connected to the cutter head and a duct piece located on the rear portion of the shield shell. The tail of the shield shell is provided with a shield tunneling machine oil pump. A shield tunneling machine oil pump supporting boot is connected to the duct piece when being stretched. The jack is arranged at the contact point of the duct piece and the shield tunneling machine oil pump supporting boot. The jack comprises a friction plate and an adjusting bolt fixed to the edge of the friction plate.When the jack works, the jack friction plate is arranged between the duct piece and the shield tunneling machine oil pump supporting boot in a stretching state. The non-fixed end of the adjusting boltof the jack is supported at a support point. An operation person rotates the adjusting bolt so that the friction plate moves between the duct piece and the supporting boot, and the jack friction plate applies a force to the shield shell through the supporting boot to correct the rolling angle of the shield tunneling machine. The jack is particularly suitable for the timely correction of the uncontrolled rolling angle of the shield tunneling machine when an earth pressure balance shield passes through complex formations such as muddy soil and the like for a long distance.

Description

Technical field [0001] The invention relates to the technical field of shield construction, in particular to a jack for changing the rolling angle of a shield machine. Background technique [0002] When the earth pressure balance shield travels through the silty soil and other complex formations for a long distance, the rolling angle of the shield machine may be out of control, and it needs to be corrected in time. [0003] The existing plan is [0004] 1. Reverse cutter head [0005] In the past, when the rolling angle was too large in shield construction, the most common operation was to reverse the cutter head to correct the rolling angle; but in complex formations such as silt maps, especially when the shield machine itself has malfunctions such as the center of gravity deviation , Reversing the cutter head cannot change the rolling angle of the shield in time, or even the rolling angle of the shield. [0006] 2. Shield opening reset plan [0007] When the rolling angle of the shie...

AI Technical Summary

Problems solved by technology

[0007] When reversing the cutter head cannot correct the roll angle of the shield machine, the shield machine is used to open the bin. By taking measures to fix the cutter head on the face of the tunnel and reverse the cutter head, the purpose of changing the roll angle of the shield machine is achieved, but it is different from this Compared with the patent, this kind of scheme has the following risks: ①If the fixed cutterhead is not properly operated, the cutterhead will be deformed; ②The shield opening operation is more risky

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