Unlock instant, AI-driven research and patent intelligence for your innovation.

Universal torque transmission device capable of electrically connecting for down hole

An electrical connection and cardan shaft technology, which is used in drilling driving devices, drilling equipment, earth-moving drilling and other directions in the wellbore, can solve the problems of inability to achieve over-power and signal connection, low life, complex structure, etc., and achieve replacement. Simple and reliable maintenance, high overall life, good strength and fatigue resistance

Active Publication Date: 2019-08-16
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing solutions: petal type universal torsion transmission structure and ball joint torsion transmission structure, and petal type universal torsion transmission structure and ball joint torsion transmission structure have low service life, complex structure, and the most important It is impossible to realize the power and signal connection

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Universal torque transmission device capable of electrically connecting for down hole
  • Universal torque transmission device capable of electrically connecting for down hole
  • Universal torque transmission device capable of electrically connecting for down hole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The technical solutions of the present invention will be further described below with reference to the accompanying drawings.

[0029] like Figure 1-4 As shown, the present invention is an over-electrically connectable universal torque transmission device for downhole, which utilizes the transmission of torque between two non-concentric rotating structures to transfer two non-concentric universal torque transmission devices. The non-concentric motion of the rotating structure is universally transmitted and twisted into concentric motion through the universal flexible shaft, and a wire hole is arranged inside the device to realize the electrical and signal transmission of the two non-concentric rotating structures.

[0030] According to an embodiment of the present disclosure, the downhole over-electrically connectable universal torque transmission device includes a universal flexible shaft, a flexible shaft lower joint, a flexible shaft lower joint connecting device, a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of precise electric connection, and particularly relates to a universal torque transmission device capable of electrically connecting for a down hole. Theuniversal torque transmission device capable of electrically connecting for the down hole uses torque transmission between two non-concentric rotating structures, non-concentric movement of the two non-concentric rotating structures are subjected to universal torque transmission to convert into concentric movement by a universal flexible shaft, and a wire guide hole is formed in the device to realize electric and signal transmission of the two non-concentric rotating structures. According to the universal torque transmission device, a large-torque universal torque transmission function can berealized under the condition of the limited radial space size, and electric and signal linking and electric and signal transmission through a hard wire are realized at the same time; the whole torquetransmission device is simple and reliable in structure and can be adjusted structurally according to using occasions, and usability is high; and a coaxial connector and a contact-type slip ring are adopted at the two ends of the torque transmission device respectively to carry out electric and signal connection, dismounting and mounting are convenient, the whole device is modular, and changing and maintaining are simple and reliable.

Description

technical field [0001] The invention belongs to the technical field of precise electrical connection, and in particular relates to a universal torque transmission device which can be electrically connected in a well. Background technique [0002] The universal torque transmission device is widely used in downhole drilling tools, such as screw drilling tools, rotary steering tools, etc., mainly to achieve universal and transmit torque. Taking screw drilling tools as an example, the stator performs planetary motion in the rotor cavity, and through the universal torque transmission device, the planetary motion can be converted into coaxial motion, thereby providing drilling power for the drill bit. [0003] Existing solutions: petal-type universal torque transmission structure and spherical hinge universal torque transmission structure, while petal-type universal torque transmission structure and spherical hinge universal torque transmission structure have low lifespan, complex...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/02E21B4/00
CPCE21B4/006E21B17/021E21B17/028
Inventor 何新振王自力底青云陈文轩杜建生
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com