Power variable speed roadheader

Abstract

The invention provides a power speed change heading machine. The power speed change heading machine comprises a cutting part, a shovel plate part, a machine body part, walking parts, a supporting part and a transport part. The cutting part is installed in the upper front part of the machine body part. The shovel plate part is installed in the lower front part of the machine body part. The supporting part is installed in the rear of the machine body part. The walking parts are installed respectively in the lower parts of two sides of the machine body part. The transport part is installed in the machine body part. The cutting part comprises a cutting head, a telescoping part, a power variable-speed motor, a cutting motor and an attachment bracket. The power speed change heading machine can realize power shift transmission without machine halt at anytime according to coal rock hardness change, maximize production efficiency and safety, solve lubrication problems of the power variable-speed motor when the power variable-speed motor swings in the cutting part of the power speed change heading machine and specially swings vertically, and realize an instant speed change function without machine halt.

Description

technical field [0001] The invention relates to a roadheader for coal mine exploitation, and more specifically, to a roadheader with variable power. Background technique [0002] In the prior art, there are two main ways to change the speed of the cutting part of the roadheader: [0003] The first category, through the application of variable speed motors, currently the cutting motors of roadheaders mainly have three types: constant power single speed, double power double speed, and constant power double speed. In the double-power and double-speed structure, the cutting part of the roadheader uses a double-speed cutting motor, which can output high and low speeds, and the speed ratio is 2:1. After the variable speed motor changes speed, the output power also changes accordingly, and the power ratio becomes 1. : 2, the single-tooth cutting force has no significant change, it cannot adapt to the complexity and diversity of the geological conditions of the tunneling roadway, a...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems in the above-mentioned prior art that the roadheader cannot adapt to the complexity and diversity of the geological conditions of the roadway, the speed cannot be adjusted at any time according to the coal seam conditions, the single-tooth cutting force is not significantly improved, and the work efficiency is low, or at least One, the present invention provides a kind of driving machine of power variable speed

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