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Cutting knife, device and method for manufacturing dumbbell sample for cable detection

A dumbbell sample and manufacturing device technology, which is applied in the preparation of test samples, measuring devices, sampling, etc., can solve problems such as pressure deformation, and achieve the effects of improving efficiency, avoiding deformation, and reducing errors

Pending Publication Date: 2021-12-24
STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above problems, the present disclosure proposes a cutting tool, device and method for making dumbbell samples for cable detection. The present disclosure can realize the automatic production of cable insulation layer dumbbell samples, and avoids the cable The problem of pressure deformation when the insulation layer is cut

Method used

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  • Cutting knife, device and method for manufacturing dumbbell sample for cable detection
  • Cutting knife, device and method for manufacturing dumbbell sample for cable detection
  • Cutting knife, device and method for manufacturing dumbbell sample for cable detection

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Such as figure 1 As shown, the present disclosure provides a dumbbell sample making cutter for cable detection, which adopts the following technical solution:

[0042] A dumbbell sample making cutter for cable detection, comprising a first pressing device 11, a second pressing device 12 and a blade 13;

[0043] A dumbbell-shaped space is formed between the first pressing device 11 and the second pressing device 12; The pressing device 11 is connected with the second pressing device 12 through a sliding mechanism 14 .

[0044] Specifically, the overall structure of the first pressing device 11 is a rectangular metal block, and a through hole with a dumbbell-shaped cross-section is provided in the middle of the rectangular block, and the 12-bit metal block with a dumbbell-shaped cross-section in the second pressing and pressing device; The second compression compression device 12 is arranged in the through hole of the dumbbell shape; when working, the first compression ...

Embodiment 2

[0050] Such as image 3 As shown, the present embodiment provides a dumbbell sample making device for cable detection, including a frame 21, a backing plate 26, a first power unit 22, a second power unit 24, a third power unit 23 and as in the embodiment cutter 1 as described in 1;

[0051] The backing plate 26 is arranged at the lower end of the frame 21, and the first pressing device 11, the second pressing device 12 and the blade 13 pass through the first power device 22 and the second pressing device 22 respectively. The power unit 24 and the third power unit 23 are arranged on the upper end of the frame 1 .

[0052] Specifically, when working, firstly, the first pressing device 11 and the second pressing device 12 compress the cable sheath on the backing plate 26 under the action of the power device, and then the blade 13 Under the action of the power device, the charging action is realized.

[0053] In this embodiment, a dumbbell-shaped groove 2601 corresponding to th...

Embodiment 3

[0058] This embodiment provides a method for making a dumbbell sample for cable detection, using the dumbbell sample making device 2 as described in Example 2; the main contents include:

[0059] Measure the thickness of the sample of the cable sheath to be cut to ensure that the thickness is equal in each area;

[0060] Specifically, the measurement of the thickness of the sample of the cable sheath adopts the existing technology, for example, it can be obtained by measuring at different positions with a vernier caliper.

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Abstract

The invention provides a cutting knife, device and method for manufacturing a dumbbell sample for cable detection. The cutting knife comprises a first pressing device, a second pressing device and a blade. A dumbbell-shaped space is formed between the first pressing device and the second pressing device. The blade is arranged in the dumbbell-shaped space, and the two sides of the blade are connected with the first pressing device and the second pressing device through sliding mechanisms respectively. Automatic manufacturing of the dumbbell sample of a cable insulating layer can be achieved, and the problem of pressurization deformation happening during cutting of the cable insulating layer is avoided through the pressing devices.

Description

technical field [0001] The disclosure belongs to the technical field of cable detection, and in particular relates to a dumbbell sample making cutter, device and method for cable detection. Background technique [0002] Cable is an important part of power grid transmission system and plays an important role in power grid construction. Cable quality is the basic guarantee for the safe operation of power grid transmission system, therefore, it is extremely necessary to supervise the quality of cables. The detection of cable quality mainly uses the insulation thermal extension test to detect the wires of rubber insulation and sheath, cross-linked polyethylene insulation and sheath, and measure the cross-linking degree of cross-linked insulation and sheath to determine the quality of the cable. Thermal extension performance, thus ensuring the safety of power delivery. In the process of conducting insulation thermal extension test on cables, it is necessary to make the insulati...

Claims

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Application Information

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IPC IPC(8): B26F1/44B26D7/02B26D7/27G01N1/28
CPCB26F1/44B26D7/02B26D7/27G01N1/286G01N2001/2873
Inventor 王晓军夏坤宋健焦平洋马帅王西芝关朋闫传文段元栋刘峰
Owner STATE GRID SHANDONG ELECTRIC POWER
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