Advance timbering device of dig-anchor-integrated comprehensive mining machine

Abstract

An advance timbering device of a dig-anchor-integrated comprehensive mining machine is disclosed. The problems of low degree of automation and poor safety in the prior art are solved. The advance timbering device of the dig-anchor-integrated comprehensive mining machine is characterized in that a swing folding support is mounted at the front ends of telescopic beams, a combined type middle telescopic supporting beam and external telescopic supporting beams are mounted on the swing folding support, and a front combined baffle is hinged to the front ends of the combined type middle telescopic supporting beam and the external telescopic supporting beams. The advance timbering device has the beneficial effects that the structure is compact, the body is small, the advance timbering device can be folded through an overturning and folding machine frame and transferred to the rear portion of the machine body of the comprehensive mining machine through telescopic beams and a sliding transverse beam, work of a mining part of the comprehensive mining machine is not influenced, and influence on the other facilities at the rear portion of the machine body in a roadway is also slight; the combined front baffle can conduct supporting type protection on the front end surface of the roadway, and a relatively comprehensive and wide advance temporary supporting area is provided; five supporting beams provide strong support for the upper roof of the roadway, the problem of insufficiency of cantilever support capacity is solved radically, and a rapid and automatic advance timbering device is provided for roadway anchor protection.

Description

technical field [0001] The invention belongs to the technical field of tunneling and supporting in coal mine roadways, and in particular relates to an advanced supporting device for a full-mechanized excavator integrated with digging and anchoring. Background technique [0002] In the prior art, the support work of the roadheader after the roadway is excavated is a difficult, complicated and extremely inefficient work. After excavating for a certain distance, it needs to be shut down and supported by manual bolts. This working method has poor continuity and affects the work efficiency of the fully mechanized excavator. The work efficiency is low, the labor intensity of the operators is high, the degree of automation is low, and the safety is poor. [0003] The invention with the application number CN201310470400.4 provides a self-propelled coal mine roadway temporary support anchor machine, which is mainly composed of a walking support module, a supporting beam module, an ad...

AI Technical Summary

Problems solved by technology

But, there are following problems in this invention, the one, the advance support device is fixedly installed on the top front side of the cutting part, affects the working range of the cutting part of the roadheader, and also affects the operator's line of sight when cutting work; First, when the cutting part is in the cutting work, the impact vibration is very strong, which will seriously affect the service life of the advance support device; third, when the cutting part is in the cutting work, there will be a lot of mineral fragments and dust Or pile pressure on the advanced support device after contraction during roof fall, cause the damage of advanced support device, influence its normal operation; The 4th, the support area of ​​the advanced support device of this invention is little, and support area is limited, and the advance support The protection device cannot be moved to the front of the cutting part, and it has no lateral support effect on the roadway excavation surface, so its advanced support structure cannot meet the safety protection requirements, and there is a great hidden danger to the life safety of the on-site operators

Images