CN101571435A - Test method of internal friction of spring contact fingers and test tools - Google Patents
Test method of internal friction of spring contact fingers and test tools Download PDFInfo
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- CN101571435A CN101571435A CNA2009101119591A CN200910111959A CN101571435A CN 101571435 A CN101571435 A CN 101571435A CN A2009101119591 A CNA2009101119591 A CN A2009101119591A CN 200910111959 A CN200910111959 A CN 200910111959A CN 101571435 A CN101571435 A CN 101571435A
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Abstract
The invention discloses a test method of internal friction of spring contact fingers and test tools, belonging to the technical field of testing relevant parameters of spring contact fingers in closure poles. The test method is as follows: first the spring contact fingers are located, and then testing hammers try to pass through inner ring loops of the spring contact fingers; wherein, the testing hammers include a big one and a small one; the weights of the big one and the small one are equal to the maximum value and the minimum value allowed by the internal friction, besides, the external diameters of the contact ends of the testing hammers and the spring contact fingers match the internal diameters of the ring loops of the spring contact fingers. The two testing hammers are vertically contacted with the spring contact fingers one after another, if the contact end of the heavier testing hammer can not pass through the inner ring loop while the testing end of the lighter one can pass through the inner ring loop, the spring contact fingers are qualified, or the tested contact fingers are not qualified. The test method can test the internal friction of the spring contact fingers in batches and is convenient and fast. The used test tools are reasonable in design and simple in use.
Description
Technical field
The present invention relates to a kind of internal friction detection method and testing tool of spring touch finger, specifically detect the detection method of pole inner spring fingertip internal friction, and in testing process used special detection tool.
Background technology
Pole is that the conductive pieces that vacuum interrupter is relevant with isolating switch is embedded into simultaneously in the easy cured solid insulating material of this class of epoxy resin and forms pole, makes whole circuit breaker polar become as a whole parts.Pole generally comprises a vacuum interrupter, and vacuum interrupter is provided with metallic object, ceramic body, following metallic object successively, and the upper end of vacuum interrupter is made as quiet end, and the lower end is made as the contact moved end; The top of pole is last outlet seat, and quiet end of outlet seat and vacuum interrupter is fastenedly connected on this; The bottom of pole is provided with down the outlet seat, and the spring bearing inwall of this time outlet seat is provided with a plurality of grooves, is used for ccontaining corresponding spring touch finger, and this spring touch finger such as Fig. 1 are that volute spring is connected to form an annular ring from beginning to end; Vacuum interrupter is to realize by the sliding type of contact moved end with being electrically connected of following outlet seat, be the contact moved end by with spring touch finger (annular ring) interior spiral shell footpath no matter arc-chutes close a floodgate or separating brake all will keep excellent contact, the contact arm moved end of the top of insulated tension pole and vacuum interrupter is affixed; Above-mentioned vacuum interrupter, last outlet seat, following outlet seat normally adopt epoxy resin to be enclosed in together admittedly.
In the pole, the quantity of spring touch finger is to satisfy the requirement of pole dynamic thermal stability test, this shows, the performance impact of spring touch finger is to the quality of isolating switch, the correlation parameter of single spring touch finger such as external diameter, internal diameter etc. are can be by means of the test of existing test view, for the internal friction of spring touch finger, also there be not a kind of instrument or instrument of accurate its value of measurement at present, the internal friction of spring touch finger is one of key parameter of pole circuit turn-on or disconnection.Show that by a large amount of test figures the internal friction of single spring touch finger is at 35N-40N.If, influence divide-shut brake speed because internal friction is big.The mechanical property of isolating switch can not be met the demands.And friction force causes the too little meeting of decrement to bring tolerance scarce capacities such as off-centre for a short time, causes loop circuit bigger than normal, influences the temperature rise of whole isolating switch.
Summary of the invention
At the deficiency of existing spring touch finger internal friction detection technique, the invention provides a kind of internal friction detection method of spring touch finger reasonable in design, easy to detect, a kind of practical testing tool also is provided simultaneously.
The present invention is achieved by the following technical solutions:
It is as follows that the spring touch finger internal friction detects step:
(1), the retainer spring fingertip, make the spring touch finger horizontal fixed;
(2), detect hammer detection springs fingertip; Described detection hammer is two of sizes, its weight equals the maximal value that internal friction allowed and the minimum value of spring touch finger, and the external diameter that detects hammer is consistent with the actual arc-chutes moved end conducting rod diameter that uses, above-mentioned two detection hammers successively vertically contact with spring touch finger, if than the contact jaw of re-detection hammer can by and the light test side of detecting hammer can not be passed through, then this spring touch finger is qualified; If two weights can both pass through, this spring friction force is described less than setting, this product is defective; If two weights all can not be by this spring friction force of explanation greater than setting, this product is defective.
Described two are detected hammer, and one heavily is 3.5kg, and another is 4kg.The used testing tool of said method comprises that one detects seat and detects hammer, detecting the seat center is circular depression, this depression perisporium is provided with an annular groove, be used for the putting spring fingertip, the center of the circular depressed of detection seat is provided with a positioning rod and extends upward outside detecting seat, this backstay is connected as a single entity with the detection seat, detecting hammer is that two sections different right cylinders of diameter are formed, wherein the cylindrical end than minor diameter cooperates with detection seat depression, and, detect the hammer center and establish pilot hole, be used for backstay and penetrate and make and detect hammer and detect the seat depression and locate and cooperate.
Described detection hammer is two, and it varies in weight, and one is 3.5kg, and another is 4kg.
The top that described detection is hammered into shape can be set as a handle, and with convenient this detection hammer that moves, handle is fixedlyed connected with the detection hammer, belongs to and detects a part of hammering into shape, and handled detection hammer general assembly (TW) is 3.5kg or 4kg.
Detect hammer detection springs fingertip; Described detection hammer is two of sizes, its weight equals the maximal value that internal friction allowed and the minimum value of spring touch finger, and the external diameter that detects hammer is consistent with the actual arc-chutes moved end conducting rod diameter that uses, above-mentioned two detection hammers successively vertically contact with spring touch finger, if than the contact jaw of re-detection hammer can by and the light test side of detecting hammer can not be passed through, then this spring touch finger is qualified; If two weights can both pass through, this spring friction force is described less than setting, this product is defective; If two weights all can not be by this spring friction force of explanation greater than setting, this product is defective.
The present invention has following useful effect:
1, the internal friction that this detection method can the batch detection spring touch finger is convenient and swift;
2, testing tool is reasonable in design, use is simple and with low cost.
Description of drawings
Fig. 1 is a testing tool synoptic diagram of the present invention;
Fig. 2 is a testing tool A-A cut-open view of the present invention;
Fig. 3 is a testing tool vertical view of the present invention;
Fig. 4 is that the present invention detects a B-B cut-open view.
Embodiment
Be described further below in conjunction with the technical scheme of accompanying drawing the present invention:
Embodiment: it is as follows that the spring touch finger internal friction detects step:
(1), the retainer spring fingertip, make the spring touch finger horizontal fixed;
(2), detect hammer detection springs fingertip; Described detection hammer is two of sizes, its weight equals the maximal value that internal friction allowed and the minimum value of spring touch finger, and the external diameter that detects hammer is consistent with the actual arc-chutes moved end conducting rod diameter that uses, above-mentioned two detection hammers successively vertically contact with spring touch finger, if than the contact jaw of re-detection hammer can by and the light test side of detecting hammer can not be passed through, then this spring touch finger is qualified; If two weights can both pass through, this spring friction force is described less than setting, this product is defective; If two weights all can not be by this spring friction force of explanation greater than setting, this product is defective.
Two are detected hammer, and one heavily is 3.5kg, and another is 4kg.
Structure such as Fig. 1, Fig. 2, shown in Figure 4, testing tool comprises that one detects seat 1 and detects hammer 2, detecting the seat center is circular depression 101, these 101 perisporiums that cave in are provided with an annular groove 102, be used for the putting spring fingertip, the center of the circular depressed 101 of detection seat 1 is provided with a positioning rod 103 and extends upward outside detecting seat 1, this backstay 103 is connected as a single entity with detection seat 1, detecting hammer 2 is two sections right cylinders 201 that diameter is different, 202 and handles 203 are formed, wherein the right cylinder 201 than minor diameter cooperates with detection seat depression 101, and, detect hammer 2 central through holes, be used for backstay 103 and pass and make and detect hammer 2 and detect seat depression 101 and locate and cooperate.Detecting hammer 2 is two, and it varies in weight, and one is 3.5kg, and another is 4kg.
Further, above-mentioned two are detected hammer and successively vertically contacts with spring touch finger, if than the contact jaw of re-detection hammer can by and gently the test side hammered into shape of detection can not pass through, then this spring touch finger is qualified; If two weights can both pass through, this spring friction force is described less than setting, this product is defective; If two weights all can not be by this spring friction force of explanation greater than setting, this product is defective.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (4)
1, a kind of internal friction detection method of spring touch finger is characterized in that comprising the steps:
(1), the retainer spring fingertip, make the spring touch finger horizontal fixed;
(2), detect hammer detection springs fingertip; Described detection hammer is two of sizes, its weight equals the maximal value that internal friction allowed and the minimum value of spring touch finger, and the external diameter that detects hammer is consistent with the actual arc-chutes moved end conducting rod diameter that uses, and above-mentioned two detection hammers successively vertically contact with spring touch finger:
If than the contact jaw of re-detection hammer can by and the light test side of detecting hammer can not be passed through, then this spring touch finger is qualified;
If two weights can both pass through, this spring friction force is described less than setting, this spring touch finger is defective;
If two weights all can not be by this spring friction force of explanation greater than setting, this spring touch finger is defective.
2, the internal friction detection method of a kind of spring touch finger according to claim 1 is characterized in that: described two are detected hammer, and one heavily is 3.5kg, and another is 4kg.
3, the internal friction testing tool of spring touch finger, it is characterized in that: comprise that one detects seat and detects hammer, detecting the seat center is circular depression, this depression perisporium is provided with an annular groove, be used for the putting spring fingertip, the center of the circular depressed of detection seat is provided with a positioning rod and extends upward, this backstay bottom is connected as a single entity with the detection seat, detect hammer and form one by two sections different right cylinder and handles of diameter, wherein the cylindrical end than minor diameter cooperates with detection seat depression, and, detect hammer center, test side and establish pilot hole, be used for backstay and penetrate and make and detect hammer and detect the seat depression and locate and cooperate.
4, the internal friction testing tool of spring touch finger according to claim 3 is characterized in that: detecting hammer is two, and one of its weight is 3.5kg, and another is 4kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101119591A CN101571435B (en) | 2009-06-01 | 2009-06-01 | Test method of internal friction of spring contact fingers and test tools |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101119591A CN101571435B (en) | 2009-06-01 | 2009-06-01 | Test method of internal friction of spring contact fingers and test tools |
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| Publication Number | Publication Date |
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| CN101571435A true CN101571435A (en) | 2009-11-04 |
| CN101571435B CN101571435B (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101119591A Active CN101571435B (en) | 2009-06-01 | 2009-06-01 | Test method of internal friction of spring contact fingers and test tools |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197795A (en) * | 2016-06-29 | 2016-12-07 | 河南平高电气股份有限公司 | Spring touch finger compressive strain amount and value of elastic measuring method and measurement frock |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052525A (en) * | 2016-06-27 | 2016-10-26 | 河南平高电气股份有限公司 | Inner diameter, outer diameter, and inner and outer diameter integrated detection method of spring contact finger |
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2009
- 2009-06-01 CN CN2009101119591A patent/CN101571435B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197795A (en) * | 2016-06-29 | 2016-12-07 | 河南平高电气股份有限公司 | Spring touch finger compressive strain amount and value of elastic measuring method and measurement frock |
| CN106197795B (en) * | 2016-06-29 | 2019-03-29 | 河南平高电气股份有限公司 | Spring touch finger compressive strain amount and elastic force value measurement method and measurement tooling |
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| Publication number | Publication date |
|---|---|
| CN101571435B (en) | 2011-05-11 |
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