Full cross-section shield device used for roadway excavation

Abstract

The invention provides a full cross-section shield device used for roadway excavation. The full cross-section shield device used for roadway excavation solves the problems that stopping for operationis required, the efficiency is low, and safety is poor due to the fact that supporting methods are backward and frame moving is difficult in the prior art. A front shield body is included, and a rearshield body is arranged at the rear of the front shield body. The full cross-section shield device used for roadway excavation is characterized in that the front shield body and the rear shield body are composed of lower fixed bases and upper lifting roof beams, and two sides of the fixed bases are separately connected to two sides of the lifting roof beams through lifting mechanisms; excavation work spaces are arranged between the lifting roof beams and the fixed bases of the front shield body and the rear shield body, middle telescopic beams are arranged between the rear end of the lifting roof beam of the front shield body and the front end of the lifting roof beam of the rear shield body, and the front shield body and the rear shield body are connected by a pushing mechanism. The fullcross-section shield device used for roadway excavation has reasonable design, compact structure and stable supporting and movement, can realize the parallel operation of excavation and permanent supporting, improve the excavation efficiency, and can timely mechanically support an exposed roof in front of the tunnel 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

Images