Title:
PRESSURIZING DEVICE, ROTARY DRILLING RIG, CONTROL METHOD FOR ROTARY DRILLING RIG, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/137833
Kind Code:
A1
Abstract:
The present application relates to the technical field of construction apparatuses, and provides a pressurizing device and a rotary drilling rig. The pressurizing device comprises: a first hydraulic cylinder, having a fixed end configured to be mounted on a mast of the rotary drilling rig; a pulley block, comprising at least one oil cylinder follower pulley, the oil cylinder follower pulley being disposed at a telescopic end of the first hydraulic cylinder; and a pressurizing rope, wound on the pulley in the pulley block, the pressurizing rope being configured to be capable of being connected to the mast and a power head of the rotary drilling rig, so that when the telescopic end of the first hydraulic cylinder is extended and retracted, the pressurizing rope can be driven by the oil cylinder follower pulley to apply a downward pulling force to the power head. In the pressurizing device and the rotary drilling rig provided by the present application, the first hydraulic cylinder is used to provide a driving force, which is low in cost and easy to mount; the pressurizing rope and the pulley block work in conjunction with the first hydraulic cylinder, thereby overcoming the limitation of the length and the mounting position of the first hydraulic cylinder on the stroke, and satisfying use requirements of CFA drill rods.
Inventors:
WANG HAO (CN)
HU LANQI (CN)
ZHANG SHIPING (CN)
HU LANQI (CN)
ZHANG SHIPING (CN)
Application Number:
PCT/CN2022/078789
Publication Date:
July 27, 2023
Filing Date:
March 02, 2022
Export Citation:
Assignee:
BEIJING SANY INTELLIGENT MANUFACTURING TECH CO LTD (CN)
International Classes:
E21B19/084; E21B3/02; E21B15/00
Foreign References:
| US20210293131A1 | 2021-09-23 | |||
| CN112855113A | 2021-05-28 | |||
| CN111963081A | 2020-11-20 | |||
| CN203065086U | 2013-07-17 | |||
| CN105715247A | 2016-06-29 | |||
| CN201705242U | 2011-01-12 | |||
| CN104563895A | 2015-04-29 | |||
| CN207999212U | 2018-10-23 | |||
| US20080217037A1 | 2008-09-11 | |||
| CN205840770U | 2016-12-28 | |||
| CN209742813U | 2019-12-06 | |||
| CN210178272U | 2020-03-24 |
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
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