Onboard temporary support machine

Abstract

The invention relates to support machinery of a mechanized excavation roadway roof of a coal mine, in particular to an onboard temporary support machine, which solves the problems of advance support distance, supporting capacity, support area, incapability of guaranteeing good sight in an operation process and the like. The support machine is arranged on a cutting unit of a tunneling machine, wherein a front vertical lifting supporting device and a rear vertical lifting supporting device are arranged between the cutting unit and a single-layer support frame; the single-layer support frame has a single-layer main and secondary frame beam expanded structure; the left end and the right end of a telescopic supporting beam on the side of the single-layer support frame body are hinged with two lateral canopies respectively; two front telescopic beams are arranged between the two lateral canopies in parallel; the front end of an outer cylinder of the front telescopic beam is connected with an inner cambered bearing steel plate; the outer cylinder of the front telescopic beam is connected with a lateral telescopic supporting beam; the front end of an inner cylinder of the front telescopic beam is connected with a front canopy; the rear end of the inner cylinder of the front telescopic beam is connected with a connecting rod; and the other end of the connecting rod is hinged with front lug plates of the lateral canopies. According to the support machine, a front vertical lifting supporting technology is adopted, and the technical requirement of advance support is realized.

Description

technical field [0001] The invention relates to a support machine for the roof of a coal mine comprehensive excavation roadway, specifically an airborne temporary support machine. Temporary support. Background technique [0002] The temporary support work after the excavation of the fully mechanized roadway in the coal mine is a difficult, complicated and extremely inefficient work. Not only is the labor intensity high, but also the work efficiency is low. The miners work under the exposed roof, which is very dangerous. Therefore, an "airborne temporary support machine" that can replace manual operation has become a support product that miners dream of. [0003] At present, the temporary support of fully mechanized tunnels in domestic coal mines generally adopts two structural methods: channeling pipes and pillars plus beams. This kind of support method not only has high labor intensity and long support time, but also is extremely dangerous. Due to the small support area...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an airborne temporary support machine, which focuses on solving the problems in the prior art that require long distance support, strong support force, large support area and wide roadway adaptability.

Images