Mounting tool and mounting method for flexible ring-wrapped capacitive sensor

A technology of capacitive sensors and installation tools, which is applied in the direction of hand-held tools and manufacturing tools, can solve the problems of decreased detection accuracy, sensor damage, and impact on detection accuracy, so as to ensure detection accuracy, avoid overvoltage damage, and ensure detection accuracy. The effect of precision

Active Publication Date: 2021-08-31
NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When installing a flexible ring-wrapped capacitive sensor on the cable joint, one is usually pasted around each side of the cable joint, and then the metal shielding net is installed. The traditional installation method is manually installed by the operator, and this method has the following problems: 1. The FPC of the flexible capacitive sensor has a circuit, and the dust and sweat on the hands of the operator can easily damage the sensor and affect the detection accuracy of the sensor; 2. The flexible capacitive sensor is manually pressed on the cable connector, and the force is uneven. The sticking is not firm, so that the relative positions of multiple measuring coils on the FPC are inconsistent, which affects the detection accuracy; 3. When installing the metal shielding net, due to the hardness of the metal shielding net, it is inconvenient to surround, and manual installation is easy to cause local depressions and deformations of the metal net. It has a certain impact on the flexible capacitive sensor under the metal mesh, which reduces the detection accuracy
But this invention still adopts artificial installation, can't solve above-mentioned technical problem

Method used

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  • Mounting tool and mounting method for flexible ring-wrapped capacitive sensor
  • Mounting tool and mounting method for flexible ring-wrapped capacitive sensor
  • Mounting tool and mounting method for flexible ring-wrapped capacitive sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1~2 As shown, a flexible ring-wrapped capacitive sensor installation tool is used to install the flexible ring-wrapped capacitive sensor on the cable joint 1, including two fixed rings 2 arranged on both sides of the cable joint, and the fixed rings 2 are rotatably connected The press-fit mechanism; the press-fit mechanism includes a ring sleeve 3, a driver and a press-fit wheel 4, the ring sleeve 3 is set on the outside of the fixed ring 2, and the drive member is arranged on the ring sleeve 3 , the driving member is provided with the pressing wheel 4 for wrapping the flexible ring-wrapped capacitive sensor on the cable joint.

[0039] The outer side of the fixed ring 2 is provided with a groove, and the ring sleeve 3 rotates in the groove.

[0040] The press-fitting wheel 4 is a nylon wheel with good insulation and low hardness, which can avoid abrasion of the flexible capacitive sensor.

[0041] The driving part includes a handle bar 5, a rotating s...

Embodiment 2

[0046] Such as Figure 3~5 As shown, the flexible ring-wrapped capacitive sensor installation tool of the embodiment of the present invention, as a further improvement of the first embodiment, differs from the first embodiment in that:

[0047] The fixed ring includes a first fixed ring 21 and a second fixed ring 22 hinged at one end, a first groove 23 is provided on the bottom surface of the other end of the first fixed ring 21, and a pin shaft 24 is arranged in the first groove 23, The lock shaft 24 is connected with a block 25, the upper end of the block 25 is provided with a torsion spring 26, and the torsion spring 26 is sleeved on the pin shaft 24, and the other end of the second fixed ring 22 is provided with a second top surface. Two grooves 27, the second groove 27 is provided with a card slot 28, and the card block 25 is matched with the card slot 27.

[0048] The collar includes a first collar 31 and a second collar 32 hinged at one end, the other end of the first ...

Embodiment 3

[0052] Such as Figure 6~7 As shown, the flexible ring-wrapped capacitive sensor installation tool of the embodiment of the present invention, as a further improvement of the second embodiment, differs from the second embodiment in that:

[0053] The first connecting rod 52 is arranged on the right side of the first handle rod 51, and the end of the first connecting rod 52 is provided with a ferrule nut 53, and the second connecting rod 55 is arranged on the left side of the second handle rod 54, and the second connecting rod 55 is arranged on the left side of the second connecting rod. Threads are provided at the ends of 55 , and the first connecting rod 52 and the second connecting rod 55 are connected and fixed through the ferrule nut 53 .

[0054] A connecting rod 56 is detachably arranged between the two fixing rings, and a roller 57 is fixedly arranged on the connecting rod 56 .

[0055] The inner sides of the two fixed rings are all provided with blind holes, and the t...

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Abstract

The invention discloses a mounting tool and a mounting method for a flexible ring-wrapped capacitive sensor, and belongs to the technical field of cable joint detection equipment mounting. The mounting tool comprises two fixing rings arranged on the two sides of a cable joint, and a press fitting mechanism rotationally connected with the fixing rings, wherein the press fitting mechanism comprises a ring sleeve, a driving part and a press fitting wheel, the ring sleeve is arranged on the outer side of the fixing ring in a sleeving mode, the driving part is arranged on the ring sleeve, and the press fitting wheel is arranged on the driving part and used for wrapping the cable connector with the flexible ring-wrapped capacitive sensor. The mounting tool and the mounting method are adopted for standard operation, so that the flexible capacitive sensor is not affected by dirt, uneven stress and other conditions, and the form and the shielding effect of the mounted metal shielding net are not affected, and therefore, the detection accuracy of the capacitive sensor is ensured; in addition, the mounting of the flexible capacitive sensor and the metal shielding net can be completed in sequence, the operation is convenient, and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of installation of cable joint detection equipment, in particular to an installation tool and an installation method for a flexible ring-wrapped capacitive sensor. Background technique [0002] The vast majority of high-voltage cable operation accidents are caused by partial discharge and excessively high operating temperature of cable joint conductors. The information monitoring of cable temperature and partial discharge is an indispensable and important content of power grid operation monitoring. At present, there are two main types of detection methods for partial discharge of cable joints: one is the electrical measurement method, which mainly uses two types of sensors, and the other is based on the Rogowski coil measurement principle, mainly including electromagnetic coupling method, inductive coupling method, and directional coupling method. etc.; the second is based on the principle of capacitive cou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/02
CPCB25B27/02
Inventor 胡志勇杨冰王飞周林朱俊辛春文贾乐宁
Owner NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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