Shield machine duct piece hoisting device

Abstract

The invention discloses a shield machine duct piece hoisting device. A hoisting track of the shield machine duct piece hoisting device is divided into multiple sections, every two adjacent sections are staggered along the height direction and overlapped at the end parts along the hoisting direction, the widths of the overlapping parts are different, and a conveying chain pair of one section is located on the inner side of a conveying chain pair of the other section; and the conveying chain of each section of the hoisting track is a circular conveying chain and comprises chain wheels on both ends and chains sheathed outside the chain wheels, the chain wheels are connected with a motor, the driving rotation of the motor drives the chains to convey duct pieces circularly, and a trolley is fixedly installed on the chains. Compared with the one-section structure, the hoisting device can ensure that the shield machine can perform tunneling with larger gradient and smaller turning radius because larger dislocation quantity is allowed for the shield tail part and the matching part.

Description

technical field [0001] The utility model relates to a hoisting device, in particular to a hoisting device for hoisting segments from a traction locomotive of a shield machine to a shield tail of the shield machine. Background technique [0002] The shield machine is a special construction machine for tunneling. The modern shield machine integrates advanced optical, mechanical, electrical, hydraulic, sensing, and information technologies. It is a kind of high-end special engineering machinery equipment for underground tunnel excavation, which has the functions of assembling tunnel lining, measuring guide and rectifying deviation. In the process of realizing the automation of the entire excavation, in order to ensure the continuous lining of the TBM-assembled tunnel, it is necessary to ensure continuous segment delivery. An important link in segment delivery is to use a lifting device to hoist the segment from the tractor that transports the segment on the supporting part at...

AI Technical Summary

Problems solved by technology

The one-piece hoisting device mentioned above limits the degree of offset of the shield body of the shield machine relative to the supporting part, so that the shield machine can only carry out excavation with a large turning radius and a small slope

At the same time, the shield machine is usually equipped with a conveying device above the lifting device to return the soil slag excavated during the excavation process. During the process of returning the soil slag, it is inevitable that some parts will fall due to vibration and other reasons. Dirt and slag sometimes accumulate on the track, which will affect the movement of the trolley, or even cause a fault, affecting the lifting of the segment

In addition, in the process of excavating up and downhill, the chain is inclined. Due to the overall weight of the motor, trolley, spreader, and segment is relatively large, there will be some problems caused by gravity and track when the sprocket travels along the inclined chain. The possibility of relative displacement may cause lifting failure, and the failure rate in the lifting process is high

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