Full-face shield device for roadway excavation

Abstract

A full-section shield device used for roadway excavation solves the problems in the prior art that the supporting means are outdated, the frame is difficult to move, the machine needs to be stopped for operation, the efficiency is low, and the safety is poor. It includes a front shield body with a rear shield body at the rear, and is characterized in that: the front shield body and the rear shield body are both composed of a lower fixed base and an upper lifting beam, and the two sides of the fixed base are respectively passed through the lifting mechanism. It is connected with both sides of the lifting top beam; there is a excavation work space between the lifting top beam and the fixed base of the front shield body and the rear shield body; the rear end of the lifting top beam of the front shield body and the lifting top beam of the rear shield body A central telescopic beam is arranged between the front ends, and the front shield body and the rear shield body are connected through a moving mechanism. It has reasonable design, compact structure, stable support and movement, can realize parallel operation of excavation and permanent support, improve excavation efficiency, and can provide timely mechanized support for the exposed roof in front of the roadway excavation working face.

Description

technical field [0001] The invention belongs to the technical field of roadway excavation equipment, and relates to a timely support device for coal mine roadway excavation operations, in particular to a device that can cooperate with the excavation operation, support and move stably, and can realize parallel operation of excavation and permanent support, and improve It is a full-section shield device for roadway excavation that can effectively improve the safety of the roadway excavation operation environment, and can provide timely mechanized support for the exposed roof at the front of the roadway excavation working face, and cover the excavation operation to achieve continuous operation and effectively improve the safety of the roadway excavation operation environment. Background technique [0002] In mining, especially underground mining of coal mines, mining operations and tunneling operations are two key links in coal mine production. With the widespread use of compre...

AI Technical Summary

Problems solved by technology

With this traditional support method, after the cutting of the tunneling device is completed, most of the time the operator relies on manual or bolter rigs to perform support operations such as drilling bolt holes, surfing the net, and driving bolts when the tunneling device is shut down. ; At the same time, regardless of the surrounding rock conditions of the excavation roadway, the footage of one excavation cannot be too large, otherwise it will face the threat of accidents such as slabs and roof fall

The existing backward tunneling support method is difficult to move and needs to be shut down. As a result, the tunneling efficiency of the tunneling device can only be 20% to 25%. The work efficiency is very low and the safety is poor, which seriously affects the tunneling work. schedule

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