Title:
ROTARY DRILLING RIG POWER HEAD AND CORRESPONDING ROTARY DRILLING RIG
Document Type and Number:
WIPO Patent Application WO/2021/068557
Kind Code:
A1
Abstract:
Provided is a rotary drilling rig power head, provided with a drive module, a drill rod (10), a protective tube driver (15), an input member, a first output member, and a second output member; the drive module transmits power separately to the first output member and the second output member by means of the input member; the first output member transmits power to the drill rod (10), controlling same to operate; the second output member transmits power to the protective tube driver (15), thus driving the protective tube (151) to operate; in addition, a rotary drilling rig comprising the rotary drilling rig power head is disclosed, which can control the operation of the drill rod (10) and the protective tube (151) simultaneously by means of a power drive source; further, since the directions of motion of the first output member and the second output member are opposite, a balance of forces can be better achieved. Using the rotary drilling rig power head and the corresponding rotary drilling rig effectively improves exploitation efficiency, and performance is stable, service life is long, costs are low, and adaptability is good.
Inventors:
WANG YUNGEN (CN)
Application Number:
PCT/CN2020/097892
Publication Date:
April 15, 2021
Filing Date:
June 24, 2020
Export Citation:
Assignee:
WANG YUNGEN (CN)
International Classes:
E21B7/20; E21B3/00
Foreign References:
| CN110552614A | 2019-12-10 | |||
| KR20090002372A | 2009-01-09 | |||
| CN109356528A | 2019-02-19 | |||
| CN203808822U | 2014-09-03 | |||
| CN202970449U | 2013-06-05 | |||
| CN2723663Y | 2005-09-07 | |||
| CN106194030A | 2016-12-07 | |||
| CN204920791U | 2015-12-30 | |||
| DE19512109A1 | 1996-10-10 |
Attorney, Agent or Firm:
SHANGHAI ZHI XIN PATENT AGENT LTD. (CN)
Download PDF: