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Wiring method and structure in a downhole testing instrument

A technology for testing instruments and lead wires, which is applied in the field of power supply for motors in slender rods, can solve the problems of passing wires in transmission parts, and achieve the effect of saving wiring space and compact structure

Active Publication Date: 2016-01-20
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

In order to solve the problem of passing the line of the transmission part in the narrow, long and compact space, so as to overcome the shortcomings of the current technology

Method used

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  • Wiring method and structure in a downhole testing instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] Embodiment: a wiring method in a downhole testing instrument, such as figure 1 As shown, the signal line 4 of this method passes through the hollow transmission shaft 3 of the test instrument and is connected with the slip ring rotor 5. When the motor 8 drives the hollow transmission shaft 3 to rotate, the signal line 4 is connected to the hollow transmission shaft 3 and the slip ring rotor. 5 synchronous rotation, the hollow transmission shaft 3 will not wear the insulating layer of the signal line 4 to cause a short circuit when the hollow transmission shaft 3 rotates, and the signal line 4 will not be fatigued and bent in the hollow transmission shaft 3 to cause disconnection. The slip ring rotor 5 is covered with a slip ring stator 6. Through the sliding connection between the slip ring rotor 5 and the slip ring stator 6, the current of the signal line 4 is transmitted to the slip ring stator 6. Then it is connected to the motor 8 through the lead wire 7. The sli...

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PUM

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Abstract

The invention discloses a wiring method and structure in an underground test instrument. The signal line of the method passes through the hollow transmission shaft of the test instrument and is connected with a slip ring rotor. The slip ring rotor is covered with a slip ring stator, and the slip ring rotor The sliding connection with the slip ring stator transmits the current of the signal line to the slip ring stator, and then connects with the motor through the lead wire. The signal line of the invention passes through the middle of the hollow transmission shaft, which saves wiring space and makes the structure more compact. When the motor is working, the signal wire rotates together with the slip ring rotor and the hollow transmission shaft. There is a boss on the motor mounting plate, and the boss cooperates with the groove on the slip ring stator to prevent the slip ring stator from rotating, so as to ensure that the lead wires connected with the slip ring stator remain stationary.

Description

technical field [0001] The invention relates to a wiring method and structure in an underground testing instrument, and belongs to the technical field of electric power supply in a slender rod. Background technique [0002] Downhole testing instruments are generally designed as slender rods. Due to the harsh working environment and the limitation of structural space, the wiring method of the downhole tester is also subject to certain restrictions. If the method is improper, it will cause faults such as broken skin, short circuit or fracture. Traditional wiring methods generally include: perforated wiring inside the instrument tube, direct wiring inside the instrument tube, and wiring outside the instrument tube, etc. However, for downhole testing instruments with complex structures and small outer diameters, these wiring methods sometimes do not work, especially for instrument tubes. Situations where both transmission and wiring are required. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K13/02H02K5/22H02G3/04
Inventor 魏炎红冯贵洪汪开义
Owner 贵州航天凯山石油仪器有限公司