Title:
IMPACT-TYPE ICE DRILLER
Document Type and Number:
WIPO Patent Application WO/2017/177352
Kind Code:
A1
Abstract:
An impact-type ice driller, comprising a rack (1), a motor (2), a drill stem (7), and a fixed part and a rotary part oppositely arranged in the axial direction. The fixed part is fixed relative to the rack (1); the rotary part is connected to the drill stem (7) and can be driven by the motor (2) to maintain synchronous motion with the drill stem (7); irregular surfaces capable of matching each other are provided on opposite end faces of the fixed part and the rotary part, and the rotary part can make axial reciprocating movement relative to the fixed part during rotation by means of mutual contact and separation actions between the irregular surfaces of the fixed part and the rotary part. Therefore, the drill stem can impact an ice layer during an ice drilling process, and the ice drilling effect is good.
Inventors:
LU LIMENG (CN)
Application Number:
PCT/CN2016/000411
Publication Date:
October 19, 2017
Filing Date:
July 22, 2016
Export Citation:
Assignee:
NINGBO NGP IND CO LTD (CN)
International Classes:
E02B15/02; E21B6/02
Foreign References:
| CN105715206A | 2016-06-29 | |||
| CN205532271U | 2016-08-31 | |||
| CN101148971A | 2008-03-26 | |||
| CN202047751U | 2011-11-23 | |||
| CN203514281U | 2014-04-02 | |||
| CN103828773A | 2014-06-04 | |||
| CN201581383U | 2010-09-15 | |||
| RU2113580C1 | 1998-06-20 |
Attorney, Agent or Firm:
NINGBO CHANNEL PATENT ATTORNEYS OFFICE (CN)
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