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universal joint

A technology of universal joints and intermediate joints, which is applied in the field of universal joints, can solve the problems of weak structural joints of universal joints, extrusion of universal joints, increased torque, etc., to achieve strong practicability and economy, fast connection, The effect of reducing the replacement rate

Active Publication Date: 2015-12-09
ANTON OILFIELD SERVICES (GRP) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the universal joint, especially the connection, is particularly fragile, and the universal joint is very soft, and it is easy to squeeze at the obstacle, which will increase the torque during the operation and cause it to break
It is difficult to avoid this accident by controlling the torque

Method used

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0023] figure 1 It is a structural schematic diagram of a preferred embodiment of the universal joint of the present invention. Such as figure 1 As shown, the universal joint includes the end joints 1 arranged at both ends for connecting with other workpieces, the middle joint 6 for adjusting the length, and the joints between the end joints 1 and the middle joints, etc. Connection assembly for connection. Figure 4 It is a schematic structural diagram of the end connecting joint of a preferred embodiment of the universal joint of the present invention; Figure 5 It is a structural sectional view of the end connection joint of the preferred embodiment of the universal joint of the present invention. Such as Figure 4 and Figure 5 As shown, one end of the end connection section 1...

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Abstract

The invention discloses a universal joint which comprises an end part connecting joint, middle joints and a connecting assembly, wherein one end of the end part connecting joint is a workpiece connecting end, and the other end of the end part connecting joint is provided with two opposite connecting lugs; the two ends of each middle joint are respectively provided with two opposite connecting lugs, and the two opposite connecting lugs at one end of the middle joint are circumferentially arranged with the two opposite connecting lugs at the other end of the middle joint at 90 degrees in a staggered manner; the connecting assembly comprises a cube with a cross through hole, a long shaft with a radial through hole, two short shaft sleeves and a pin; the two adjacent middle joints or the middle joints and the end part connecting joint are connected with each other through the connecting assembly; the cube and the middle joint at one side of the cube or the two connecting lugs of the end part connecting joint are connected with each other through the long shaft; the cube and the middle joint at the other side of the cube or the two connecting lugs of the end part connecting joint are connected with each other through the two short shaft sleeves; the pin passes through the two short shaft sleeves and the radial through hole on the long shaft; and the two short shaft sleeves are axially positioned. The universal joint is flexible to bend and has high strength.

Description

technical field [0001] The present invention relates to torque steering transmission devices, in particular to a universal joint. Background technique [0002] At present, the main procedure of radial pore-forming hydrojet stimulation technology in oilfield production is to open a small hole in the casing, and then use a high-pressure hose to spray in the formation to artificially increase the pore-permeability difference of the formation. Improve the layout of the underground well pattern and increase the production of oil wells. To use this production stimulation measure, first a small hole must be drilled on the casing perpendicular to the production tubing, so a universal joint must be used to connect the window opening small drill bit to complete a 90° turn in the whipstock and withstand a large torque Complete the window opening. In the prior art, in order to complete a 90° turn and open a window successfully, a universal joint is mainly used to connect a small drill...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D3/26
Inventor 马怀兵彭宝盆王涛
Owner ANTON OILFIELD SERVICES (GRP) LTD
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