Title:
MAKE-UP AND BREAK-OUT DEVICE, ROTARY HYDRAULIC DRIVING DEVICE, AND HYDRAULIC CYLINDER SYNCHRONOUS POSITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/023072
Kind Code:
A1
Abstract:
Disclosed are a make-up and break-out device, a rotary hydraulic driving device, and a hydraulic cylinder synchronous positioning device, belonging to the field of oil and gas development. The make-up and break-out device comprises: a base (1); a shell (2) connected to the base (1), wherein the shell (2) comprises a first clamp body (21) and a second clamp body (22), and the first clamp body (21) and the second clamp body (22) can rotate so that same have an open state and a closed state; a rotary body (3) arranged in an annular cavity, wherein the rotary body (3) comprises two fan-shaped base components, a clamping member (36) for clamping and a first hydraulic oil cylinder (37) for driving the clamping member (36) to move are installed on the rotary body (3), and a tooth ring (35) is arranged on a side wall of the rotary body (3); and a power mechanism (4) that can be meshed with the tooth ring (35) so as to drive the rotary body (3) to rotate.
Inventors:
LI YANG (CN)
ZHOU ZHIXIONG (CN)
FANG TAIAN (CN)
GUO XIUQIN (CN)
ZHANG NA (CN)
JIN LING (CN)
ZHOU ZHIXIONG (CN)
FANG TAIAN (CN)
GUO XIUQIN (CN)
ZHANG NA (CN)
JIN LING (CN)
Application Number:
PCT/CN2020/105445
Publication Date:
February 11, 2021
Filing Date:
July 29, 2020
Export Citation:
Assignee:
BEIJING KEMBL PETROLEUM TECH CO LTD (CN)
International Classes:
F15B11/08; E21B19/16; F15B1/02; F15B13/02
Foreign References:
| CN211081757U | 2020-07-24 | |||
| CN210599615U | 2020-05-22 | |||
| CN210396668U | 2020-04-24 | |||
| US20100031647A1 | 2010-02-11 | |||
| US20120104674A1 | 2012-05-03 | |||
| US20080257116A1 | 2008-10-23 | |||
| CN104563922A | 2015-04-29 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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