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Test method for wear resistance of electric detonator leg wire

A technology of wear resistance and testing method, which is applied in the direction of testing wear resistance, etc., can solve the problems of only one leg line can be tested at a time, which affects the safety level of detonators, etc., and achieves compact structure design, small footprint, and low failure rate Effect

Active Publication Date: 2019-03-01
CHINA COAL TECH & ENG GRP HUAIBEIBLASTING TECHN RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the wear resistance of the electric detonator leg cannot be reasonably tested, it will seriously affect the intrinsic safety level of the detonator
The existing detonator leg wear test is mainly through manual operation, and only one leg can be tested at a time

Method used

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  • Test method for wear resistance of electric detonator leg wire
  • Test method for wear resistance of electric detonator leg wire
  • Test method for wear resistance of electric detonator leg wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for testing the wear resistance of the detonator leg wire. On the wear resistance test device of the detonator leg wire, a certain action load is applied to the measured electric detonator leg wire, and it moves at a certain speed on the wear surface. , to simulate the wear force of the leg of the electric detonator under test, measure the time it takes for the insulating layer to be worn through, and evaluate the wear resistance of the leg through the time of wear.

Embodiment 2

[0024] As a kind of test equipment of implementation example 1, such as figure 1 As shown, the detonator foot line wear resistance testing device includes a frame 1, a tension measuring mechanism 2 installed on the frame, a crimping mechanism 3, a rotating mechanism 4, a wire mechanism 5, and a tension adjusting mechanism 6; One end of the pin line is fixed on the tension measuring mechanism 2, the other end passes through the wire mechanism 5 and is fixed by the tension adjusting mechanism 6, and the test part of the detonator leg line to be tested is placed horizontally between the crimping mechanism 3 and the rotating mechanism 4 on the starting position.

[0025] The device for testing the wear resistance of the detonator leg line also includes a PLC control system, and the PLC control system controls components to start and stop in a logical order.

Embodiment 3

[0027] Such as figure 1 , figure 2 , image 3 As shown, as an optimization to Embodiment 2, the tension measuring mechanism 2 includes a gravity sensor 21, a leg fixing nut 22, the gravity sensor 21 is installed on the frame 1, and the leg fixing nut 22 is installed on the gravity sensor 21, It is used to connect one end of the leg wire of the electric detonator to be tested.

[0028] Described crimping mechanism 3 comprises pivot bar seat 31, pivot bar 32, counterweight bar 33, counterweight weight 34; Connect the counterweight bar 33, and the counterweight weight 34 is installed on the counterweight bar 33; the lower part of the connecting side of the pivot bar 32 and the counterweight bar 33 is provided with an arc grinding head, and the load is applied to the tested footline by the bar and the weight.

[0029] The rotating mechanism 4 includes a main shaft 41, a rotor 42, a sleeve 43, and a motor 44; the motor 44 is connected to the main shaft 41, the sleeve 43 is inst...

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Abstract

The invention discloses a test method for the wear resistance of an electric detonator leg wire. Certain effect loads are applied to a tested electric detonator leg wire on a test device for the wearresistance of the electric detonator leg wire, the tested electric detonator leg wire moves at certain speed on the wear surface, it is simulated that the tested electric detonator leg wire suffers from wear acting force, passing time when an insulating layer of the tested electric detonator leg wire is worn out is measured, and the wear resistance of the leg wire is evaluated through the worn-outtime. The invention also discloses a structure of the test device for the wear resistance of the electric detonator leg wire. The test method is simple and easy to achieve, the test device is compactin structural design, occupied area is small, a tension measuring mechanism, a wire pressing mechanism, a wire mechanism, a tension adjusting mechanism, a rotating mechanism and the like which are sequentially installed on a machine frame are mutually matched, and in the electric detonator leg wire, the failure rate is low, the reliability is high, and meanwhile the test efficiency of the wear resistance of the electric detonator leg wire is improved.

Description

technical field [0001] The invention relates to a method and device for testing the wear resistance of electric detonator legs, which are mainly used for simulating the phenomenon that the legs of electric detonators may be worn through during the production, transportation and use of the electric detonator, and belong to the technical field of explosive detection equipment . Background technique [0002] With the rapid development of mining industry and blasting engineering, the demand for detonators is increasing. Detonators are divided into non-electric detonators and electric detonators. Electric detonators include industrial electric detonators, electronic detonators and magnetoelectric detonators. The annual output in the country is several hundred million rounds. However, the electric detonator often fails due to the damage of the foot wire. If the feet are worn through, the two feet will be short-circuited, and the detonator cannot be detonated, so the explosive ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
CPCG01N3/56
Inventor 杨宗玲潘先峰于魏清张志刚翟廷海李娟娟李勇岳彩新赵显莹刘伟章晋英
Owner CHINA COAL TECH & ENG GRP HUAIBEIBLASTING TECHN RES INST
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