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Title:
PICK HAVING POWER DEVICE OF COMPOSITE ROTARY CUTTING EXCAVATING MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/040457
Kind Code:
A1
Abstract:
A pick having a power device of a composite rotary cutting excavating machine, disposed in a cylinder (27). An impact piston (26) and an impact hammer (28) are further arranged in the cylinder (27); driven by a fluid changing between high pressure and low pressure at a certain frequency, the impact piston (26), the impact hammer (28) and an impact pick (32) are pushed to reciprocatingly move at a certain frequency in an axial direction thereof to generate an impact power, thereby increasing the service life and work efficiency of an excavating machine or a shield machine, and reducing power consumption and mining costs.

Inventors:
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:
CN2017/000550
Publication Date:
March 08, 2018
Filing Date:
September 01, 2017
Export Citation:
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Assignee:
LI, Shiqing (Zhangzhuang Cinema, XinwenXintai, Shandong 9, 271219, CN)
International Classes:
E21C35/18
Foreign References:
CN105003259A2015-10-28
CN104234713A2014-12-24
CN103100859A2013-05-15
DE3509868A11985-10-10
CN103016001A2013-04-03
CN202402029U2012-08-29
CN201902208U2011-07-20
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