Self-stabilizing and adjusting device of propulsion oil cylinder of shield machine

Abstract

The invention discloses a self-stabilizing and adjusting device of propulsion oil cylinders of a shield machine. The device includes self-adjusting oil cylinders which are installed on the upper side and the lower side of each set of propulsion oil cylinders respectively; each self-adjusting oil cylinder includes a transversely arranged cylinder barrel and a piston cavity arranged in the cylinder barrel, the two ends of each piston cavity are symmetrically provided with two sets of piston heads and piston rods, and the outer end portions of the piston rods are provided with walking cams; springs are arranged between the corresponding two piston heads and in each piston cavity, and the two ends of each spring elastically make contact with the corresponding piston heads; the outer peripheral surfaces of the two propulsion oil cylinders are provided with annular slideways, the edge of one side of each walking cam is connected with the inside of the corresponding slideway in a clamping mode, the outer part of the other side of each walking cam is provided with guide limiting blocks, and the four guide limiting blocks are fixedly installed on a shield partition plate of the shield machine respectively. The device responds rapidly, can be self-adjusted and return to the original position, and is convenient to disassemble and maintain, the installation space is saved, and the device can be widely applied to all kinds of shield equipment.

Description

technical field [0001] The invention relates to the technical field of a shield machine propulsion system for tunnel shield construction, in particular to a shield machine propulsion oil cylinder self-stabilizing and adjusting device. Background technique [0002] The shield machine is an important equipment for tunnel construction, and the propulsion system is its most important system component, which undertakes many functions such as the advancement, steering, attitude adjustment, and fixed segments of the shield machine. However, the propulsion cylinder of the shield machine has a long stroke and a large installation size. At the same time, its installation method is fixed at one end and suspended at the other end. Due to the large disturbance and poor stability of the propulsion cylinder, it is easy to cause oil leakage, seal damage, and bending of the piston rod. , Stuck and other accidents, serious cases even cause the shield machine to move forward weakly, and the tu...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a self-stabilizing and adjusting device for the propulsion cylinder of the shield machine, which aims to solve the large disturbance and poor stability of the propulsion cylinder of the shield machine due to one end fixed, one end suspended, long stroke, etc. , easy to damage the seal and oil leakage, resulting in weak propulsion of the shield machine and broken segments

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