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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2018/040458
Kind Code:
A composite rotary-cutting mining machine relates to a coal mining machine or a heading machine. A composite drill bit or composite roller (7) of the mining machine is provided with at least one or a plurality of cylinders. A piston is provided in each cylinder, and acts on a cutting pick or a rotary cutting pick by means of a transmission device. Each cylinder is connected to high-pressure gas or high-pressure liquid, and acts on the piston to produce power. The power is transmitted to the cutting pick by means of the transmission device for a shock motion. The mining machine has a long service life, and is high in efficiency and low in power consumption.

LI, shiqing (Zhangzhuang Cinema, XinwenXintai, Shandong 9, 271219, CN)
WANG, Aiquan (129 Jiluolu, Jinan, Shandong 0, 250000, CN)
ZHANG, Jianhua (School of Mechanical Engineering, Shandong University 17923 Jingshi Roa, Jinan Shandong 1, 250061, CN)
Application Number:
Publication Date:
March 08, 2018
Filing Date:
September 01, 2017
Export Citation:
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LI, shiqing (Zhangzhuang Cinema, XinwenXintai, Shandong 9, 271219, CN)
International Classes:
E21C25/00; E21C35/18
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