Excavator cutting head

Abstract

The invention provides a tunnelling and excavating integrated machine cutting head. The cutting head mainly comprises a hydraulic motor, a hydraulic motor fixing box, a T-shaped gear reducer, rotating brackets and rollers on which a plurality of pick-shaped cutters are distributed. The cutting head has the following beneficial effects: by adopting the hydraulic motor for driving, the explosion-proof requirement in the mine and the convenience of use in the ground engineering are satisfied; by adopting the T-shaped gear reducer, the cutting head has simple and compact whole structure; the cutting head has strong tunnelling and excavating capabilities; a hydraulic motor output shaft is used for transmitting power to a bevel gear set, after primary bevel gears change the direction of rotation through transmission, the power is transferred to an intermediate gear by pinions of a straight gear set to realize primary speed reduction, then the power is transferred to gearwheels, and finally the power is transferred to the bilaterally symmetrical rotating brackets by spline shafts; the rocks are cut and broken by the rollers which are sleeved on the rotating brackets and provided with pick-shaped cutters; and the cutting head can be used for tunnelling, excavating and breaking the rocks with hardness being less than 8, can satisfy the requirement for ditch excavation in the mine and on the ground, saves the labor investment, and improves the degree of mechanization and safety of coal mine and ground engineering development.

Description

technical field [0001] The invention relates to a cutting head of an excavating and excavating integrated machine, which is especially suitable for excavating underground drainage ditches in coal mines, repairing roadway wall surfaces, and digging trenches in ground engineering. Background technique [0002] With the development of coal mining technology and engineering machinery technology, the degree of mechanization of coal mines and engineering in my country has been continuously improved, and there are more and more types and forms of machinery used, but they still cannot meet the production needs. For example, the drainage ditch of underground coal mine roadway is an important part of the underground drainage system. When designing the roadway, the drainage ditch needs to be excavated on both sides of the roadway. Since the drainage ditch is generally narrow and lower than the roadway ground, it cannot be completed by the roadheader. The place is all hard rock, and it ...

AI Technical Summary

Problems solved by technology

At the same time, drainage, pipelines, and wiring projects in the ground also need to be dug trenches. For soil structure ground, excavators can be used for trenching, while for rocky ground or concrete ground, manual excavation is still required, and the efficiency is low.

This method is not only inefficient, but also highly dangerous for underground construction, which seriously affects the construction speed and safety of underground and surface engineering.

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