Development machine

Abstract

The invention discloses a development machine, comprising a development machine body (1) as well as a supporting device (2) and a driving device (3) for driving the supporting device (2) to move; wherein the supporting device (2) is arranged at the front part of the development machine body (1), and the supporting device (2) can be in supported position under the action of the driving device (3). The development machine provided by the invention can widen application range thereof while ensuring use cost to be low, and meanwhile the time required by supporting is reduced, the labor intensity of workers is reduced, and the work efficiency is improved.

Description

technical field [0001] The invention relates to the field of coal machinery, in particular to a roadheader. Background technique [0002] With the rapid development of my country's national economy, energy consumption is increasing rapidly. Coal is the main energy source in my country, and its consumption is constantly increasing. my country's coal industry has also developed rapidly, and the coal machinery industry that is closely related to it has also been paid more and more attention. [0003] Excavation and mining are important production links in coal mine production, and rapid excavation of coal mine roadways is a key technical measure for coal mines to ensure high and stable mine production. High-efficiency mechanized excavation and support technology is a necessary condition to ensure high production and high efficiency in mines, and it is also the development direction of roadway excavation technology. [0004] In the prior art, there are mainly three tunneling su...

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Problems solved by technology

[0008] However, since this method requires the bolter to enter the roadway for support after the excavation is completed, this requires that the roof support strength of the coal roadway in the working environment should be better, the excavation roadway has a large section, and the empty roof distance needs to be allowed at least 6 meters , thereby limiting the working conditions of this method and its scope of application. In China, it can only be used in Shendong, Wanli and other mining areas and the Ordos area.

[0009] 3. The imported tunneling and anchoring integrated unit is used to excavate and support the coal roadway. Although this method can support the roof of the coal roadway after excavation in time, due to the influence of its structure, its overall size is large, which means The roof and floor of the working environment have a large bearing capacity, and at the same time, the section of the tunnel is large, which also limits the scope of application of this kind of machinery; at the same time, the equipment is expensive and the cost of use is high

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