Sliding clutch method and device of downhole measuring and adjusting instrument

A technology of measuring and adjusting instrument and clutch shaft, which is used in earth-moving drilling, wellbore/well components, production fluid, etc. Reliable effect

Pending Publication Date: 2017-08-25
贵州航天凯山石油仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the clutch technology for controlling the retraction of a single arm is relatively mature, while there are few clutch devices for controlling the retraction of both arms. The more common one on the market is a threaded clutch device, and the threaded clutch is not only complicated in structure, but also has thread buckles that are easy to wear and tear. Defects of damage and easy jamming in case of sand

Method used

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  • Sliding clutch method and device of downhole measuring and adjusting instrument
  • Sliding clutch method and device of downhole measuring and adjusting instrument
  • Sliding clutch method and device of downhole measuring and adjusting instrument

Examples

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Embodiment

[0020] The device used in this example is Figure 1-3 As shown, the adjustment shaft 2 is connected with the adjustment arm 1, and when the adjustment shaft 2 rotates, the adjustment arm 1 rotates. The adjustment shaft 2 upper end is processed with a flat hole, the clutch shaft 3 lower end is processed with a flat shaft, and the flat shaft at the clutch shaft 3 lower end can slide in the flat hole of the adjustment shaft 2, and the clutch shaft 3 rotates and the adjustment shaft 2 rotates. High point and low point are processed on the cam 6, and when the cam 6 rotates, the positioning arm 4 can be retracted. A flat hole is processed in the middle of the cam 6, and a flat shaft is processed in the middle of the clutch shaft 3 to cooperate with the flat hole of the cam 6. The flat shaft is separated, at this time the clutch shaft 3 rotates and the cam 6 does not rotate, but the adjustment arm 1 can rotate; when the cam 6 moves to the lower limit position, the flat hole on the c...

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PUM

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Abstract

The invention discloses a sliding clutch method and device for a downhole measuring and adjusting instrument. A clutch shaft is arranged in the downhole measuring and adjusting instrument and can only rotate in the downhole measuring and adjusting instrument, a top end flat hole connected with a bottom end flat shaft of a driving shaft is formed in the top end of the clutch shaft, a bottom end flat shaft in sliding connection with a top end flat hole of an adjusting shaft is arranged at the bottom end of the clutch shaft, and a middle-section flat shaft in clutch connection with a cam is arranged at the middle section of the clutch shaft; the clutch shaft and a flat hole in the cam form a clutch connection structure through the middle-section flat shaft, and when the clutch shaft is in a combined state, the cam drives positioning arms to unfold or fold; when the clutch shaft is in a separation state, the clutch shaft only drives the adjusting shaft at the bottom end to rotate to adjust a water distributor; the folding and unfolding actions of the positioning arms and the adjusting function of the adjusting arm are not affected. The sliding fit is adopted, the operation is simple, and blockage caused by sand cannot occur easily.

Description

technical field [0001] The invention relates to a sliding clutch method and device for an downhole measuring and adjusting instrument, and belongs to the technical field of downhole instrument structures. Background technique [0002] In order to shorten the length of the whole machine, reduce the manufacturing cost and improve the reliability of the instrument, downhole instruments usually use a single motor to realize multi-action functions, but the multi-actions are often not executed synchronously, and a clutch mechanism is required for separate operations. At present, the clutch technology for controlling the retraction of a single arm is relatively mature, while there are few clutch devices for controlling the retraction of both arms. The more common one on the market is a threaded clutch device, and the threaded clutch is not only complicated in structure, but also has thread buckles that are easy to wear and tear. Defects that are damaged and easily stuck in sand. ...

Claims

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Application Information

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IPC IPC(8): E21B43/20E21B23/01
CPCE21B23/01E21B43/20
Inventor 魏炎红庞云伟龙先明
Owner 贵州航天凯山石油仪器有限公司
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