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 (CN)
WANG AIQUAN (CN)
ZHANG JIANHUA (CN)
WANG AIQUAN (CN)
ZHANG JIANHUA (CN)
Application Number:
PCT/CN2017/000550
Publication Date:
March 08, 2018
Filing Date:
September 01, 2017
Export Citation:
Assignee:
LI SHIQING (CN)
International Classes:
E21C35/18
Foreign References:
| CN105003259A | 2015-10-28 | |||
| CN104234713A | 2014-12-24 | |||
| CN103100859A | 2013-05-15 | |||
| DE3509868A1 | 1985-10-10 | |||
| CN103016001A | 2013-04-03 | |||
| CN202402029U | 2012-08-29 | |||
| CN201902208U | 2011-07-20 |
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