Stepped earthwork construction excavator of underground passage

Abstract

The invention relates to an excavator, in particular to a stepped earthwork construction excavator of an underground passage. The stepped earthwork construction excavator of the underground passage comprises a rack, wherein the front end of the rack is connected with an outer movable arm, and an outer movable arm cylinder is connected between the outer movable arm and the rack; the stepped earthwork construction excavator is characterized in that the outer movable arm is internally sleeved with an inner movable arm, a telescopic cylinder is connected between the outer movable arm and the inner movable arm, the front end of the inner movable arm is connected with a shaking rod, a shaking rod cylinder is connected between the shaking rod and the rear end of the inner movable arm, the rack is provided with a conveying support, and the conveying support is provided with a conveying belt. The stepped earthwork construction excavator disclosed by the invention has the beneficial effects that a stepped underground passage in far-near distances can be excavated, and excavated earthwork and the like can be simultaneously and automatically shipped out; the working efficiency is high, the operation is convenient, the safety performance is high, and great convenience is provided for engineering construction of the underground passage.

Description

(1) Technical field [0001] The invention relates to an excavator, in particular to an excavator for earthwork ladder construction of an underground passage. (2) Background technology [0002] With the development of the economy and the continuous progress of society, resources are constantly being consumed, and more and more coal mines, iron ore and other resources need to be developed; and urbanization is also accelerating, and more and more underground passages need to be built. When opening underground passages, manual excavation is mostly used at present. The efficiency of manual excavation is extremely low, and it can't be several meters a day. Not only is the cost high, but it also seriously delays the construction period. Now, some construction sites have begun to use excavators for excavation, but there are also certain problems: the country has regulations for the excavation of underground passages, that is, when digging a certain distance, it must be suppor...

AI Technical Summary

Problems solved by technology

When opening underground passages, manual excavation is mostly used at present. The efficiency of manual excavation is extremely low, and it can’t be several meters a day. Not only the cost is high, but also the construction period is seriously delayed.

Now, some construction sites have begun to use excavators for excavation, but there are also certain problems: the country has regulations for the excavation of underground passages, that is, when digging a certain distance, it must be supported in the hole, and a part of it must be supported before moving forward. Excavation, this kind of excavation is a stepped construction method, but when the excavator is excavating, if the boom is too long, it will touch the fuselage and the place where it is supported when it is recovered; When there is a high ground, it will not be able to reach the earthwork that needs to be excavated ahead

In addition, how to transport the excavated earth to the outside is also a big problem

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