Fixing device for thrust oil cylinder of shield tunneling machine and shield tunneling machine

Abstract

The invention discloses a fixing device for a thrust oil cylinder of a shield tunneling machine and the shield tunneling machine. The fixing device comprises a supporting ring plate, a floating supporting assembly, wherein the floating supporting assembly comprises a first floating supporting base and a second floating supporting base; a first floating oil cylinder is arranged on the first floating supporting base; a second floating oil cylinder is arranged on the second floating supporting base; the first floating supporting base is detachably and fixedly connected to the second floating supporting base; a first groove in the first floating supporting base is locked with a second groove in the second floating supporting base to define a cylinder body mounting ring of the thrust oil cylinder; a first pushing rod of the first floating oil cylinder performs telescopic motion in a first direction; a second pushing rod of the second floating oil cylinder performs telescopic motion in a second direction; a first positioning block and a second positioning block are fixedly arranged on the supporting ring plate; the first pushing rod and the first positioning block abut against each otherto position the cylinder body mounting ring in the first direction; and the second pushing rod and the second positioning block abut against each other for positioning the cylinder body mounting ringin the second direction. The position of the thrust oil cylinder can be conveniently changed through hydraulic regulation.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering machinery, in particular to a shield machine propulsion oil cylinder fixing device and a shield machine. Background technique [0002] The propulsion system of the shield machine is an important source of power for the horizontal advancement of the shield machine, and the normal and stable propulsion of the propulsion cylinder is a crucial condition for safe construction. The propulsion cylinder relies on the close cooperation of the push rod and the cylinder body to perform piston movement to realize the output of axial power. The propulsion cylinder bears a huge reaction force during each propulsion construction process, and its stroke is very long. If the fixing device of the cylinder block is loosened during propulsion, it will inevitably lead to unstable propulsion of the cylinder and a decrease in work efficiency, which in turn will lead to damage to the cylinder and support shoes...

AI Technical Summary

Problems solved by technology

If the fixing device of the cylinder block is loose during propulsion, it will inevitably lead to unstable propulsion of the cylinder and a decrease in work efficiency, which will lead to damage to the cylinder and the support shoes. In severe cases, the segment may be damaged due to uneven force, resulting in construction safety Hidden danger

[0003] At present, the cylinder body of the propulsion cylinder is mostly fixed on the main body of the shield machine in the form of bolts and clamps. The reliability of the connection is poor, and it is easy to loosen, and the adjustment operation after loosening is not only time-consuming and laborious, but also in the construction site. Not conducive to manual operation

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