CN102628823A - Device for analyzing static contact characteristic of electrical appliance contact material - Google Patents
Device for analyzing static contact characteristic of electrical appliance contact material Download PDFInfo
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- CN102628823A CN102628823A CN2012101065930A CN201210106593A CN102628823A CN 102628823 A CN102628823 A CN 102628823A CN 2012101065930 A CN2012101065930 A CN 2012101065930A CN 201210106593 A CN201210106593 A CN 201210106593A CN 102628823 A CN102628823 A CN 102628823A
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Abstract
The invention discloses a device for analyzing the static contact characteristic of an electrical appliance contact material, which relates to a device for analyzing the characteristic of an electrical appliance contact and is used for solving the problem of the absence of a device for analyzing the changing rules of the pressure and contact resistance of an electrical appliance contact. Two guide rails are vertically and fixedly arranged on the upper end face of a bottom plate; a pressure sensor is fixedly arranged on the upper end face of the bottom plate, and is positioned between the two guide rails; an upper support plate is horizontally fixed at the upper ends of the two guide rails; a lead screw is in threaded connection with a threaded through hole on the support plate; each guide rail is sleeved with a linear bearing; two linear bearings are fixedly connected into a whole through a medium-pressure plate; a step shaft is vertically inserted into a central through hole on the medium-pressure plate, and is arranged with a larger part on the top and a smaller part at the bottom; the upper part of an upper insulating sleeve is sleeved at the lower end of the step shaft; a first wiring terminal sheet is positioned on the lower end face of the upper insulating sleeve; and the lower part of the lower insulating sleeve is sleeved at the upper end of a contact of the pressure sensor. The analyzing device disclosed by the invention is used for analyzing the static contact characteristics of an electrical appliance contact material.
Description
Technical field
The present invention relates to a kind of electrical contact material behavior analytical equipment.
Background technology
Along with the effect of electric equipment products performance is more and more important, people further recognize the significance of contact contact reliability research.The electrical contact contact resistance is too high, can make contact produce temperature rise, thereby possibly make contact produce permanent strain, even the melting welding phenomenon takes place; And, can make low level logic control circuit logical miss owing to the loss of voltage on the contact is too high, influence the electrical contact functional reliability, thereby reduced the serviceable life of electrical contact.The contact resistance of electrical contact is the key problem during the electrical contact contact reliability detects.
It is relevant that the contact resistance of electrical contact is in contact with it the face situation, comprises real contact area, surface in contact material etc.And when contact receives ambient pressure, can make contact surface produce deformation, change the contact real contact area, thereby change contact resistance.The quiet contact performance of electrical contact material is the Changing Pattern of electrical contact pressure and contact resistance.
To sum up, be not used in the analytical equipment of the Changing Pattern of electrical contact pressure and contact resistance at present.
Summary of the invention
The present invention is the problem that solves the analytical equipment of the Changing Pattern that is not used in electrical contact pressure and contact resistance at present, and then provides a kind of electrical contact material quiet contact performance analytical equipment.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: the quiet contact performance analytical equipment of electrical contact material of the present invention comprises rotation moving rod, leading screw, upper backup pad, screw mandrel locating device, center platen, goes up insulation sleeve, first wiring end sheet, second wiring end sheet, following insulation sleeve, pressure transducer, base plate, two linear bearings and two guide rails; Said two guide rails vertically are packed on the upper surface of base plate; Said pressure transducer is packed on the upper surface of base plate and between two guide rails; Said upper backup pad level is packed in the upper end of two guide rails, is processed with tapped through hole on the said upper backup pad, and said leading screw is threaded with the tapped through hole of back up pad; Said rotation moving rod is installed in the upper end of leading screw; Be set with a linear bearing on the every guide rail, said two linear bearings fix as one through center platen, are processed with central through hole on the said center platen; Said screw mandrel locating device is made up of multidiameter, three steel balls, three springs and three jackscrews; Multidiameter vertically is installed on the central through hole place and the big up and small down setting of multidiameter of center platen, and the upper end edge of multidiameter axially is processed with central blind hole, and the top of multidiameter along the circumferential direction is uniformly distributed with and is processed with three spring through holes and three spring through holes all are communicated with central blind hole; Be disposed with steel ball, spring and jackscrew from inside to outside in each spring through hole; The lower end of leading screw is positioned at central blind hole, and the lower end edge circumferencial direction of leading screw is processed with annular groove, and the steel ball in each spring through hole contacts with annular groove through the elastic force of spring; The top of last insulation sleeve is sleeved on the lower end of multidiameter; Said first wiring end sheet is positioned on the lower surface of insulation sleeve, and the bottom of following insulation sleeve is sleeved on the upper end of contact of pressure transducer, and second wiring end sheet is positioned on the upper surface of insulation sleeve down.
The invention has the beneficial effects as follows:
The analytical equipment of the Changing Pattern that is used for electrical contact pressure and contact resistance of the present invention is when contact receives ambient pressure; Can make contact surface produce deformation; Change the contact real contact area, thereby change contact resistance, thereby analyze the Changing Pattern of electrical contact pressure and contact resistance; That the present invention also has is simple in structure, easy to operate, only need manually to operate the advantage that cost is low; Analytical equipment of the present invention is convenient for changing different contact materials to be measured, therefore can analyze the different quiet contact performances of contact material to be measured, applied range.
Description of drawings
The master of the quiet contact performance analytical equipment of Fig. 1 electrical contact material of the present invention looks cut-open view.
Embodiment
Embodiment one: as shown in Figure 1; The quiet contact performance analytical equipment of the electrical contact material of this embodiment comprise rotate moving rod 1, leading screw 2, upper backup pad 4, screw mandrel locating device 5, center platen 6, go up insulation sleeve 9, first wiring end sheet 10, second wiring end sheet 13, insulation sleeve 14, pressure transducer 15, base plate 16, two linear bearings 7 and two guide rails 8 down; Said two guide rails 8 vertically are packed on the upper surface of base plate 16; Said pressure transducer 15 is packed on the upper surface of base plate 16 and between two guide rails 8; Said upper backup pad 4 levels are packed in the upper end of two guide rails 8, are processed with tapped through hole 4-1 on the said upper backup pad 4, and said leading screw 2 is threaded with the tapped through hole 4-1 of back up pad 4; Said rotation moving rod 1 is installed in the upper end of leading screw 2; Be set with a linear bearing 7 on the every guide rail 8, said two linear bearings 7 fix as one through center platen 6, are processed with central through hole 6-1 on the said center platen 6; Said screw mandrel locating device 5 is made up of multidiameter 5-1, three steel ball 5-2, three spring 5-3 and three jackscrew 5-4; Multidiameter 5-1 vertically is installed on the central through hole 6-1 place and the big up and small down setting of multidiameter 5-1 of center platen 6, and the upper end edge of multidiameter 5-1 axially is processed with central blind hole 5-5, and the top of multidiameter 5-1 along the circumferential direction is uniformly distributed with and is processed with three spring through hole 5-6 and three spring through hole 5-6 all are communicated with central blind hole 5-5; Be disposed with steel ball 5-2, spring 5-3 and jackscrew 5-4 from inside to outside in each spring through hole 5-6; The lower end of leading screw 2 is positioned at central blind hole 5-5, and the lower end edge circumferencial direction of leading screw 2 is processed with annular groove 2-1, and the steel ball 5-2 in each spring through hole 5-6 contacts with annular groove 2-1 through the elastic force of spring 5-3; The top of last insulation sleeve 9 is sleeved on the lower end of multidiameter 5-1; Said first wiring end sheet 10 is positioned on the lower surface of insulation sleeve 9, and the bottom of following insulation sleeve 14 is sleeved on the upper end of contact of pressure transducer 15, and second wiring end sheet 13 is positioned on the upper surface of insulation sleeve 14 down.
The manufacturer of pressure transducer 15 is Bangbu sensing system Engineering Co., Ltd, model JHBS-15kg.
Embodiment two: as shown in Figure 1, the length of this embodiment guide rail 8 is 170～200mm.So design increases the spacing of center platen 6 and pressure transducer 15, thereby increases the shape of slider material, the dirigibility of type selecting.Other composition and annexation are identical with embodiment one.
Embodiment three: as shown in Figure 1, the said analytical equipment of this embodiment also comprises silk braid 3, and said silk braid 3 is threaded with leading screw 2 and silk braid 3 is packed on the upper surface of upper backup pad 4 tapped through hole 4-1.So design can increase the lead of leading screw 2, thereby strengthens the physical strength of leading screw 2.Other composition and annexation are identical with embodiment one or two.
Embodiment:
As shown in Figure 1, to rotate moving rod 1 and be fixed on the upper end of leading screw 2 through jackscrew, the pitch of leading screw 2 is 1.5mm; Steel ball in the screw mandrel locating device 5 relies on spring to withstand on the annular groove 2-1 of leading screw 2 from three directions; Leading screw 2 rotates drive center platen 6 and moves up and down, and can reduce leading screw 2 rotation frictions through screw mandrel locating device 5 simultaneously, on last insulation sleeve 9, installs contact detected materials 11; Contact detected materials 12 under installing on the following insulation sleeve 13; Can use rivet type or sheet contact material to be measured to be fixed on two contact bases to be measured for contact materials to be measured such as noble metal such as gold, silver, then two contact base correspondences to be measured are installed on last insulation sleeve 9 and following insulation sleeve 13, rivet type or sheet contact material diameter to be measured is 1.7mm～2.2mm; Contact material to be measured is the longest to be 30mm; Analytical equipment of the present invention is convenient for changing different contact materials to be measured, therefore can analyze the different quiet contact performances of contact material to be measured, applied range;
Adopts pressure sensor amplifying circuit, voltage signal acquisition circuit, current signal Acquisition Circuit, single-chip microcomputer, button inputting circuits, liquid crystal display display output circuit test resistance value, magnitude of voltage, current value, contact pressure value; When changing contact pressure; Liquid crystal display can show content and comprise contact resistance value, magnitude of voltage, current value, contact pressure value; Single-chip microcomputer is established USB interface in addition, can analysis result be reached host computer.
Principle of work:
As shown in Figure 1, moving rod 1 is rotated in rotation, and center platen 6 positions are transferred to top; On last insulation sleeve 9, install contact detected materials 11, contact detected materials 12 under installing on the following insulation sleeve 13, moving rod 1 is rotated in rotation moves downward leading screw 2; Dwindle two contact detected materials spacings gradually; Monitor liquid crystal display each item reading simultaneously, leading screw 2 moves downward and drives screw mandrel locating device 5 and move downward synchronously with center platen 6, and screw mandrel locating device 5 moves downward to drive and goes up insulation sleeve 9 and move downward synchronously with upper contact head detected materials 11; Be in contact with one another up to two contact detected materials; Contact resistance of test in per six seconds in continuous one minute increases upper contact head detected materials 11 and 12 pressure of following contact detected materials under same pressure effect, preserves data; Change two contact materials to be measured then, change electric current, again the relation between following conduction time of different pressures and contact resistance under the different constant current conditions of test acquisition;
Record the contact pressure curve through pressure transducer 15; Adopt the four-wire method mode of connection to record resistance curve through first wiring end sheet 10 and second wiring end sheet 13; Thereby analyze the quiet contact performance of electrical contact material, i.e. the Changing Pattern of electrical contact pressure and contact resistance.
Claims (3)
1. quiet contact performance analytical equipment of electrical contact material; It is characterized in that: said analytical equipment comprises rotation moving rod (1), leading screw (2), upper backup pad (4), screw mandrel locating device (5), center platen (6), goes up insulation sleeve (9), first wiring end sheet (10), second wiring end sheet (13), following insulation sleeve (14), pressure transducer (15), base plate (16), two linear bearings (7) and two guide rails (8); Said two guide rails (8) vertically are packed on the upper surface of base plate (16); Said pressure transducer (15) is packed on the upper surface of base plate (16) and is positioned between two guide rails (8); Said upper backup pad (4) level is packed in the upper end of two guide rails (8); Be processed with tapped through hole (4-1) on the said upper backup pad (4); Said leading screw (2) is threaded with the tapped through hole (4-1) of back up pad (4); Said rotation moving rod (1) is installed in the upper end of leading screw (2); Be set with a linear bearing (7) on the every guide rail (8), said two linear bearings (7) fix as one through center platen (6), are processed with central through hole (6-1) on the said center platen (6); Said screw mandrel locating device (5) is made up of multidiameter (5-1), three steel balls (5-2), three springs (5-3) and three jackscrews (5-4); Multidiameter (5-1) vertically is installed on the central through hole (6-1) of center platen (6) and locates and the big up and small down setting of multidiameter (5-1), and the upper end edge of multidiameter (5-1) axially is processed with central blind hole (5-5), and the top of multidiameter (5-1) along the circumferential direction is uniformly distributed with and is processed with three spring through holes (5-6) and three spring through holes (5-6) all are communicated with central blind hole (5-5); Be disposed with steel ball (5-2), spring (5-3) and jackscrew (5-4) in each spring through hole (5-6) from inside to outside; The lower end of leading screw (2) is positioned at central blind hole (5-5), and the lower end edge circumferencial direction of leading screw (2) is processed with annular groove (2-1), and the steel ball (5-2) in each spring through hole (5-6) contacts with annular groove (2-1) through the elastic force of spring (5-3); The top of last insulation sleeve (9) is sleeved on the lower end of multidiameter (5-1); Said first wiring end sheet (10) is positioned on the lower surface of insulation sleeve (9), and the bottom of following insulation sleeve (14) is sleeved on the upper end of contact of pressure transducer (15), and second wiring end sheet (13) is positioned on the upper surface of insulation sleeve (14) down.
2. the quiet contact performance analytical equipment of electrical contact material according to claim 1 is characterized in that: the length of guide rail (8) is 170～200mm.
3. the quiet contact performance analytical equipment of electrical contact material according to claim 1 and 2; It is characterized in that: said analytical equipment also comprises silk braid (3), and said silk braid (3) is threaded with leading screw (2) and silk braid (3) is packed on the upper surface of upper backup pad (4) tapped through hole (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101065930A CN102628823A (en) | 2012-04-12 | 2012-04-12 | Device for analyzing static contact characteristic of electrical appliance contact material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101065930A CN102628823A (en) | 2012-04-12 | 2012-04-12 | Device for analyzing static contact characteristic of electrical appliance contact material |
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| CN102628823A true CN102628823A (en) | 2012-08-08 |
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| CN2012101065930A Pending CN102628823A (en) | 2012-04-12 | 2012-04-12 | Device for analyzing static contact characteristic of electrical appliance contact material |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149442A (en) * | 2013-02-08 | 2013-06-12 | 哈尔滨工业大学 | Automatic testing device for contact resistor made of electrical contact material |
| CN103604715A (en) * | 2013-11-25 | 2014-02-26 | 哈尔滨工业大学 | Compound stress environment testing system of contact point material |
| CN104678177A (en) * | 2015-02-27 | 2015-06-03 | 上海和伍新材料科技有限公司 | Method and device for testing insulating material based on radiation source mode |
| CN104678220A (en) * | 2015-02-27 | 2015-06-03 | 上海和伍新材料科技有限公司 | Standardizing test method and device for influence of insulating material on electrical contact performance |
| CN105784248A (en) * | 2016-05-04 | 2016-07-20 | 德力西电气有限公司 | Moving contact terminal pressure detection mechanism |
| CN106092209A (en) * | 2016-08-05 | 2016-11-09 | 哈尔滨工业大学（威海） | A kind of seal profile rigidity and contact performance comprehensive test platform |
| CN110274827A (en) * | 2019-07-18 | 2019-09-24 | 哈尔滨工业大学 | A kind of pilot system and method suitable for the test of contact melted power |
| CN112284591A (en) * | 2020-10-13 | 2021-01-29 | 哈尔滨工业大学 | Device for testing dynamic attraction characteristics of electromagnet and testing method based on device |
| CN113466132A (en) * | 2021-07-01 | 2021-10-01 | 哈尔滨金融学院 | Hyperspectrum-based rice blast cycle detection equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149442B (en) * | 2013-02-08 | 2015-04-29 | 哈尔滨工业大学 | Automatic testing device for contact resistor made of electrical contact material |
| CN103149442A (en) * | 2013-02-08 | 2013-06-12 | 哈尔滨工业大学 | Automatic testing device for contact resistor made of electrical contact material |
| CN103604715A (en) * | 2013-11-25 | 2014-02-26 | 哈尔滨工业大学 | Compound stress environment testing system of contact point material |
| CN103604715B (en) * | 2013-11-25 | 2016-02-03 | 哈尔滨工业大学 | Slider material synthesized stress environment experimental system |
| CN104678220B (en) * | 2015-02-27 | 2017-11-21 | 上海和伍复合材料有限公司 | The method of testing standardized and device that insulating materials influences on electrical contact performance |
| CN104678177A (en) * | 2015-02-27 | 2015-06-03 | 上海和伍新材料科技有限公司 | Method and device for testing insulating material based on radiation source mode |
| CN104678220A (en) * | 2015-02-27 | 2015-06-03 | 上海和伍新材料科技有限公司 | Standardizing test method and device for influence of insulating material on electrical contact performance |
| CN105784248A (en) * | 2016-05-04 | 2016-07-20 | 德力西电气有限公司 | Moving contact terminal pressure detection mechanism |
| CN106092209A (en) * | 2016-08-05 | 2016-11-09 | 哈尔滨工业大学（威海） | A kind of seal profile rigidity and contact performance comprehensive test platform |
| CN106092209B (en) * | 2016-08-05 | 2019-11-05 | 哈尔滨工业大学（威海） | A kind of seal profile rigidity and contact performance comprehensive test platform |
| CN110274827A (en) * | 2019-07-18 | 2019-09-24 | 哈尔滨工业大学 | A kind of pilot system and method suitable for the test of contact melted power |
| CN112284591A (en) * | 2020-10-13 | 2021-01-29 | 哈尔滨工业大学 | Device for testing dynamic attraction characteristics of electromagnet and testing method based on device |
| CN113466132A (en) * | 2021-07-01 | 2021-10-01 | 哈尔滨金融学院 | Hyperspectrum-based rice blast cycle detection equipment |
| CN113466132B (en) * | 2021-07-01 | 2022-04-19 | 哈尔滨金融学院 | Hyperspectrum-based rice blast cycle detection equipment |
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Application publication date: 20120808 |