Drilling and milling integrated-type excavation head

Abstract

The invention relates to a drilling and milling integrated-type excavation head which comprises a gear reduction box, a drilling mechanism and a milling roller. The gear reduction box comprises a reduction box body and further comprises a first hydraulic motor and a second hydraulic motor which are mounted in the reduction box body; the drilling mechanism comprises a pin shaft, a spline pin shaft,a third hydraulic motor and a drill bit, and the third hydraulic motor is connected with the drill bit; a first motor output shaft of the first hydraulic motor is connected with a tool changing output shaft which is connected with the spline pin shaft, and a second motor output shaft of the second hydraulic motor is connected with a reduction output shaft through a reduction middle shaft; the milling roller is connected to the reduction output shaft, and the pin shaft and the spline pin shaft are both mounted on the reduction box body; and the pin shaft and the spline pin shaft are connectedwith the drill bit through a swing frame, and the milling roller can be located in the swing frame. According to the drilling and milling integrated-type excavation head, the hydraulic motors are adopted for driving, the overall structure is simple and compact, the drilling and milling integrated-type excavation head is formed, different working conditions during excavation operation are met, andthe working efficiency is improved.

Description

technical field [0001] The invention relates to the field of excavators, in particular to a drilling and milling integrated digging head. 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, in the excavation of roadway drainage ditches, hard rock formations will often be encountered, and the excavation is difficult. However, the existing milling machines are only suitable for moderate and low hardness rock formations. In rock formations, in order to improve efficiency and reduce energy consumption, half-drilling and half-milling methods can generally be used for excavation, but the work needs to be completed by constantly replacing the horizontal and vertical milling heads. This method i...

AI Technical Summary

Problems solved by technology

This method is not only inefficient, but also labor-intensive for workers, which seriously affects the construction speed of underground and surface projects.

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