CN202421000U - Tester for current-carrier friction abrasion of electric contact materials - Google Patents

Tester for current-carrier friction abrasion of electric contact materials Download PDF

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Publication number
CN202421000U
CN202421000U CN2012200604205U CN201220060420U CN202421000U CN 202421000 U CN202421000 U CN 202421000U CN 2012200604205 U CN2012200604205 U CN 2012200604205U CN 201220060420 U CN201220060420 U CN 201220060420U CN 202421000 U CN202421000 U CN 202421000U
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CN
China
Prior art keywords
current
frictional wear
component
contact
dish
Prior art date
Application number
CN2012200604205U
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Chinese (zh)
Inventor
涂川俊
陈鼎
吴旭升
熊贤至
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湖南大学
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Priority to CN2012200604205U priority Critical patent/CN202421000U/en
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Publication of CN202421000U publication Critical patent/CN202421000U/en

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Abstract

A tester for current-carrier friction abrasion of electric contact materials comprises a clamping component, a power component, a control component, a measuring component, a current carrying component and a current-carrier friction abrasion disk. The clamping component comprises a ventilating cabinet and a loading pin clamp for clamping a sample. The current-carrier friction abrasion disk is mounted on an operating table of the ventilating cabinet through a rotary shaft and is driven to rotate by the power component. The sample clamped on the loading pin clamp is located on one side of a friction face of the current-carrier friction abrasion disk. The control component is connected with the power component and the current carrying component. Both the sample and the current-carrier friction abrasion disk are located in a current carrier testing circuit of the current carrying component. The tester has the advantages of simple structure, high integrity, easiness in manufacture, reliability in use, simplicity in operation, accuracy of test results and the like.

Description

The testing machine that is used for the contact material current-carrying frictional wear

Technical field

The utility model is mainly concerned with contact material friction and wear behavior testing apparatus field, refers in particular to a kind of testing machine that is used for the contact material current-carrying frictional wear.

Background technology

" current-carrying frictional wear " typically refers to the friction and wear behavior under high speed, heavy current effect, is the interaction of mechanical friction contact system and electric contact-system, interactional result.Current-carrying frictional wear is a very complex physicochemical process; Influence factor is numerous; Except that the influence factor (like sliding speed, normal pressure, surface appearance, temperature, experimental situation, lubricating condition etc.) of conventional rubbing wear; Also receive influences such as electric current, electric arc, contact resistance, these factors influence each other, interaction, mutual restriction, cause there are many difficulties in the research of current-carrying frictional wear.Therefore, the frictional wear experiment that is only flowed under the operating mode at a high speed in simulation just can be obtained significant result of study.

" current-carrying frictional wear experiment machine " mainly is applicable to wearing and tearing and the carrier rocket friction and wear behavior that fairing produced in the lift-off process etc. of the carbon brush-collector ring of the electrical power transmission system of electric car in the pantograph-catenary current collection, urban public transport of high-speed electric railway system, industry-wide generator motor.

At present; When state, inside and outside correlative study person carry out current-carrying frictional wear experiment research; The testing equipment that is adopted is repacking or homemade mostly, promptly under the experiment condition of oneself setting, studies, and the repeatability and the comparability of test findings are relatively poor; Still do not have a kind of general and efficient test unit, do not see any business-like special-purpose current-carrying frictional wear experiment machine yet.

The test unit of existing friction wear testing machine roughly is divided into four big types by the relative motion form: vertical pin type disc test machine, ring (line)-piece formula sliding test machine, line (ball, pin)-disc type sliding test machine, line-bar formula testing machine.Above-mentioned testing machine mostly is on existing dry friction and wear testing machine basis, to transform voluntarily to form, have wear surface linear velocity (most testing machine travelling speed are below 30m/s) on the low side, input current (most of testing machines can only provide several electric currents of pacifying to tens of peaces) less than normal, testing machine rotating speed can not regulate continuously (most testing machines can only provide constant rotational speed permanent with carry decide load) etc. deficiency.Above-mentioned testing machine mostly can not well satisfy present stage to the requirement of bullet train with the analogue simulation experimental study of sliding contact material.Trace it to its cause mainly be the rolling disc inertia of existing current-carrying frictional wear experimental machine bigger than normal, make electricity start running speed to be restricted; The capacity of frequency conversion voltage adjusting device is less than normal, can not the big electric current of feasible simulation emulation.

The utility model content

The technical matters that the utility model will solve just is: to the technical matters that prior art exists, the utility model provide a kind of simple in structure, degree of integration is high, easy to manufacture, use reliable, simple to operate and accurate test result to be used for the testing machine of contact material current-carrying frictional wear.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of testing machine that is used for the contact material current-carrying frictional wear; Comprise and clamp assembly, Power Component, Control Component, measurement assembly, current-carrying component and current-carrying frictional wear dish; The said assembly that clamps comprises vent cabinet and is used for the loaded type pin clip tool of clamping sample; Said current-carrying frictional wear dish is installed on through rotation axis on the workbench of vent cabinet and under the driving of Power Component and rotates, and the sample of clamping is positioned at a side of fricting working surface on the current-carrying frictional wear dish on the said loaded type pin clip tool; Said Control Component links to each other with current-carrying component with Power Component, and said sample and current-carrying frictional wear dish all are arranged in the current-carrying test loop of current-carrying component.

Further improvement as the utility model:

Said current-carrying frictional wear dish is the compound dish of fiber-reinforced resin, and the diameter of current-carrying frictional wear dish is that 600-800mm, thickness are 40-70mm.

Offer groove on the periphery of said current-carrying frictional wear dish, be embedded with conducting ring in the said groove, said conducting ring is the fricting working surface that cooperates with sample.

Said loaded type pin clip tool is a vapour-pressure type loading pin clip tool; Said vapour-pressure type loading pin clip tool comprises gas boosting device and the pin clip tool that is used for clamping sample; One end of said pin clip tool links to each other and drive sample motion under the driving of gas boosting device in the piston rod of gas boosting device output terminal, and said gas boosting device links to each other with Control Component.

Said Control Component links to each other with the gas boosting device through an air pressure regulator.

The anti-net of throwing is set in the outside of current-carrying frictional wear dish on the said vent cabinet.

The utility model also comprises a brake assemblies, and said brake assemblies is the electromagnetic drum clamping device, and said electromagnetic drum clamping device comprises brake wheel that is installed on the rotation axis and the control arm that is used for controlling the brake wheel motion.

Said Control Component links to each other with Power Component through a multifunctional variable-frequency device and threephase asynchronous is controlled.

Said current-carrying component comprises current-carrying test loop and magnet controlled pressure regulator, mutual inductor, controlled variable rheostat, current transformer; Said mutual inductor is added in the output voltage of magnet controlled pressure regulator on the primary coil; Secondary coil inserts in the current-carrying test loop, to reach the purpose that realizes changing into low-voltage and high-current.

Said current transformer adopts LMZJ1-0.5 type current transformer; The center that a circle lead in the said current-carrying test loop passes current transformer is as primary coil, the size of current that said current transformer induced through be connected on its secondary circuit in reometer illustrate.

Compared with prior art, the advantage of the utility model is:

1, the utility model is used for contact material current-carrying frictional wear experiment machine; Be applicable to and electrically contact the frictional wear experiment of friction material/copper (aldary) friction pair under the coupling of friction speed, load and electric current; Can realize multifactor common control within the specific limits, realize that the pairing of friction pair material is selected; Not only can measure friction pair wear surface and electric spark core thereof temperature, but also can measure current-carrying efficient at rate of wear that has or not contact material under the current condition and friction pair, for the exploitation bullet train rotates contact material with sliding contact material or small and special electric machine with high resistant the reliable technique means are provided.

2, the utlity model has the degree of integration height, easy to manufacture, use reliable, simple to operate and advantage such as test result is accurate.

3, the utility model adopts a kind of fiber-reinforced resin lightweight compound substance to substitute traditional steel plate or light metal material, has reduced the moment of inertia of rolling disc significantly, has realized the possibility of loss of weight speed-raising; In addition, adopt the combination of magnet controlled pressure regulator and mutual inductor to realize that the large current load of friction pair designs and analogue simulation.

Description of drawings

Fig. 1 is the structural principle synoptic diagram of the utility model.

Fig. 2 is the framed structure synoptic diagram that the utility model is formed.

Fig. 3 is the local schematic side view of the utility model in specific embodiment.

Fig. 4 is the local schematic top plan view of the utility model in specific embodiment.

Fig. 5 is that the part master of the utility model in specific embodiment looks synoptic diagram.

Marginal data:

1, controlled variable rheostat; 2, pulley transmission mechanism; 3, threephase asynchronous; 4, control box; 5, data collector; 6, magnet controlled pressure regulator; 7, mutual inductor; 8, current transformer; 9, multifunctional variable-frequency device; 10, infrared thermometer; 11, loaded type pin clip tool; 12, gas boosting device; 13, pin clip tool; 14, sample; 15, the anti-net of throwing; 16, rotation axis; 17, current-carrying frictional wear dish; 18, vent cabinet; 19, insulating barrier; 20, bearing bracket stand; 21, conducting ring; 22, brake assemblies; 23, brake wheel; 24, control arm; 25, electromagnetic relay.

Embodiment

Below will combine Figure of description and specific embodiment that the utility model is explained further details.

Like Fig. 1~shown in Figure 5; The testing machine that is used for the contact material current-carrying frictional wear of the utility model; Comprise and clamp assembly, Power Component, Control Component, measurement assembly, current-carrying component and current-carrying frictional wear dish 17; Control Component comprises control box 4, measures assembly and comprises data collector 5, clamps assembly and comprises vent cabinet 18 and be used for the loaded type pin clip tool 11 of clamping sample 14; Current-carrying frictional wear dish 17 is installed on through rotation axis 16 on the workbench of vent cabinet 18 and under the driving of Power Component and rotates, and the sample 14 of clamping is positioned at a side of fricting working surface on the current-carrying frictional wear dish 17 on the loaded type pin clip tool 11; Control Component links to each other with current-carrying component with Power Component, and sample 14 and current-carrying frictional wear dish 17 all are arranged in the current-carrying test loop of current-carrying component.

In the present embodiment, the rolling disc that current-carrying frictional wear dish 17 adopts fiber-resin composites to make, its diameter is 600-800mm, its thickness is 40-70mm, and the outer rim on its periphery to offer the degree of depth be that 4-8mm, width are the groove of 30-60mm.Fricting working surface on the current-carrying frictional wear dish 17 is a conducting ring 21, and this conducting ring 21 can adopt copper ring or aldary ring, and this conducting ring 21 is in the groove of jointless mosaic on current-carrying frictional wear dish 17 peripheries.The circle jumping degree of the fricting working surface on the current-carrying frictional wear dish 17 is-0.04~-0.05mm.

In the present embodiment, clamp assembly and comprise vent cabinet 18 and loaded type pin clip tool 11, loaded type pin clip tool 11 is horizontal to be fixed on the workbench of vent cabinet 18, and rotation axis 16 is installed on the workbench of vent cabinet 18 through bearing bracket stand 20.In the present embodiment, vent cabinet 18 is cabinet type support, and its workbench is the ventilation platform; Loaded type pin clip tool 11 adopts vapour-pressure type loading pin clip tool; This vapour-pressure type loading pin clip tool comprises gas boosting device 12 and pin clip tool 13; Pin clip tool 13 is used for clamping sample 14; One end of pin clip tool 13 links to each other and under the driving of gas boosting device 12, drives sample 14 in the piston rod of gas boosting device 12 output terminals and moves, away from or near current-carrying frictional wear dish 17.Its pressurization principle is: after sample 14 is installed on the pin clip tool 13; Through nitrogen adjustment valve to gas boosting device 12 (like the voltage supply cylinder) voltage supply; The piston rod of voltage supply cylinder makes solenoid valve move to pressure direction along loading the holding nut seat with loading support bar under air pressure promotes; Sample 14 is contacted with current-carrying frictional wear dish 17 side planes that rotating gradually, carry out constant voltage through pressure-regulating valve and load.In the present embodiment, can in the outside of current-carrying frictional wear dish 17 the anti-net 15 of throwing be set on the vent cabinet 18, mincing of being produced when being used for preventing to rub splashed.

In the present embodiment, on the workbench of vent cabinet 18, be provided with insulating barrier 19, realize the insulation of the sample in the current-carrying test loop 14 with vent cabinet 18 through insulating barrier 19.

Power Component comprises actuator and driving member; In the present embodiment, actuator adopts threephase asynchronous 3, and driving member adopts pulley transmission mechanism 2; The output terminal of actuator links to each other with rotation axis 16 through driving member, and can be with current-carrying frictional wear dish 17 to rotate through rotation axis 16.

In the present embodiment; The utility model also further comprises brake assemblies; This brake assemblies 22 can adopt the electromagnetic drum clamping device; It comprises the brake wheel that is installed on the rotation axis 16 23 and the control arm 24 that is used for controlling brake wheel 23 motions and is used for the electromagnetic relay 25 of control arm 24 of controlled motion, can let rotation axis 16 stop operating together with current-carrying frictional wear dish 17 through brake wheel 23.

In the present embodiment, Control Component links to each other with threephase asynchronous 3 through a multifunctional variable-frequency device 9 and threephase asynchronous 3 is controlled.Through parameter such as input current, voltage on the panel board of the multifunctional variable-frequency device 9 of Control Component; Change the power input of threephase asynchronous 3; Realize the stepless change and the constant speed rotation of threephase asynchronous 3, final adjusting and the control that realizes current-carrying frictional wear dish 17 rotating speeds.Under the control of Control Component, the card linear velocity of current-carrying frictional wear dish 17 when work is 0~300km/h, and precision is 1~3m/h.

In the present embodiment; Current-carrying component comprises current-carrying test loop and magnet controlled pressure regulator 6, mutual inductor 7, controlled variable rheostat 1, current transformer 8; Conducting ring 21 on sample 14 and the current-carrying frictional wear dish 17 is arranged in the current-carrying test loop; Mutual inductor 7 is added in the output voltage of magnet controlled pressure regulator 6 on the primary coil, and secondary coil inserts in the current-carrying test loop, to reach the purpose that realizes changing into low-voltage and high-current.

In the present embodiment; Controlled variable rheostat 1 is made up of five independently different big or small resistance; In the access current-carrying test loop of switch with its corresponding resistance parallel connection, the mode that different plates connect makes the resistance that inserts change, thereby realizes the control of electric current in the current-carrying test loop.At supply voltage is 60V, and when WV was 30V, its range of control was at 30~300A.Current transformer 8 is fixed in the control box 4, and its inside has the lead in the current-carrying test loop to pass through, and is used to detect the electric current variation, thereby can reflect the current-carrying performance of sample 14; Its standard can be GB1208-87, and accuracy is 0.5 grade, and current ratio is 100/5A.In the present embodiment; Current transformer 8 adopts LMZJ1-0.5 type current transformer; Circle lead in the current-carrying test loop passes the primary coil of its center as current transformer 8, the size of current that current transformer 8 is induced through be connected on its secondary circuit in reometer read.

Sample 14 can be the moving contact material samples (pin appearance to be measured) of various commentaries on classics (cunning), and the contact material sample can adopt shapes such as lath-shaped, wire and rectangle, and it and current-carrying frictional wear dish 17 are formed friction pairs jointly.Contact material is with two pin symmetric forms and the coaxial flat opposed of the maximum gauge of current-carrying frictional wear dish 17.The length of changeing (cunning) moving contact material wear surface is less than the width that rotates copper sheet on the card.The friction pair coupling part produces the normal pressure friction.

Principle of work:

The electric current loading procedure is: after friction pair was stablized dry friction, input current formed the current-carrying test loop, carried out the current-carrying frictional wear experiment of Continuous Contact.

The vapour-pressure type loading procedure is: the at first rotating speed rotation of current-carrying frictional wear dish 17 to set; Then; Give the voltage supply of voltage supply cylinder through nitrogen adjustment valve; Piston rod makes solenoid valve move to pressure direction along loading the holding nut seat with loading support bar under air pressure promotes; Sample 14 is contacted with current-carrying frictional wear dish 17 side planes that rotating gradually, carry out constant voltage through tensimeter and load.

The motor speed adjustment process is: through the energy consumption of multifunctional variable-frequency device 9 change arrangements for speed regulation, regulate output power to regulate the rotating speed of threephase asynchronous 3.

The experimental data measuring process is: when current-carrying frictional wear dish 17 turned round by the counter clockwise direction operate as normal, contact material sample 14 provided stable friction force by the effect of exerting pressure of vapour-pressure type charger; Then through controlled variable rheostat 1 in the control circuit; Regulate the size of electric current; The test of the rate of wear of contact material under no current or the strength of current variation effect and the current-carrying efficient of friction pair etc. is arranged, for following observation friction pair flour milling and abrasive dust situation in Electronic Speculum provide experimental raw.Simultaneously, adopt traditional infrared thermometer 10 to carry out the position temperature survey of electric spark SMIS, to draw thetagram.

In other embodiments, can also be in when work, through modes such as fine setting make sample 14 along current-carrying frictional wear dish 17 radially, do adaptive motion on axial, to reach better test effect.

The thought that the utility model experimentizes from the simulation actual condition; Integrated utilization lightweight rolling disc speed-raising technology, the high current-mode converter large current load emulation technology of height and two pin flat opposed technology; Through data acquisition, analyses such as quality/variation in thickness that friction pair is worn and torn, the measurement of electric spark height, abrasive dust morphology change, the variations of antithesis ring circle jumping degree; Realize that rubbing wear continuous or that be interrupted detects; To be applied to the studying current-carrying frictional wear performance that unlike material changes (cunning) moving contact material/copper (aldary), especially estimate the current-carrying polishing machine under contact-separation condition and the anti electric arc corrosion performance of bullet train sliding material.

Below only be the preferred implementation of the utility model, the protection domain of the utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to the protection domain of the utility model.Should be pointed out that for those skilled in the art,, should be regarded as the protection domain of the utility model in the some improvement and the retouching that do not break away under the utility model principle prerequisite.

Claims (10)

1. testing machine that is used for the contact material current-carrying frictional wear; It is characterized in that: comprise clamping assembly, Power Component, Control Component, measurement assembly, current-carrying component and current-carrying frictional wear dish (17); The said assembly that clamps comprises vent cabinet (18) and is used for the loaded type pin clip tool (11) of clamping sample (14); Said current-carrying frictional wear dish (17) is installed on through rotation axis (16) on the workbench of vent cabinet (18) and under the driving of Power Component and rotates, and the sample (14) that said loaded type pin clip tool (11) is gone up clamping is positioned at the side that current-carrying frictional wear dish (17) is gone up fricting working surface; Said Control Component links to each other with current-carrying component with Power Component, and said sample (14) and current-carrying frictional wear dish (17) all are arranged in the current-carrying test loop of current-carrying component.
2. the testing machine that is used for the contact material current-carrying frictional wear according to claim 1; It is characterized in that: said current-carrying frictional wear dish (17) is the compound dish of fiber-reinforced resin, and the diameter of current-carrying frictional wear dish (17) is that 600-800mm, thickness are 40-70mm.
3. the testing machine that is used for the contact material current-carrying frictional wear according to claim 2; It is characterized in that: offer groove on the periphery of said current-carrying frictional wear dish (17); Be embedded with conducting ring (21) in the said groove, said conducting ring (21) is the fricting working surface that cooperates with sample (14).
4. according to claim 1 or the 2 or 3 described testing machines that are used for the contact material current-carrying frictional wear; It is characterized in that: said loaded type pin clip tool (11) is a vapour-pressure type loading pin clip tool; Said vapour-pressure type loading pin clip tool comprises gas boosting device (12) and is used for clamping the pin clip tool (13) of sample (14); One end of said pin clip tool (13) links to each other and drive sample (14) motion under the driving of gas boosting device (12) in the piston rod of gas boosting device (12) output terminal, and said gas boosting device (12) links to each other with Control Component.
5. the testing machine that is used for the contact material current-carrying frictional wear according to claim 4 is characterized in that: said Control Component links to each other with gas boosting device (12) through an air pressure regulator.
6. the testing machine that is used for the contact material current-carrying frictional wear according to claim 4 is characterized in that: said vent cabinet (18) upward is provided with the anti-net (15) of throwing in the outside of current-carrying frictional wear dish (17).
7. according to claim 1 or the 2 or 3 described testing machines that are used for the contact material current-carrying frictional wear; It is characterized in that: also comprise a brake assemblies; Said brake assemblies (22) is the electromagnetic drum clamping device, and said electromagnetic drum clamping device comprises the brake wheel (23) that is installed on the rotation axis (16), be used for controlling the control arm (24) of brake wheel (23) motion and be used for the electromagnetic relay (25) of control arm (24) of controlled motion.
8. according to claim 1 or the 2 or 3 described testing machines that are used for the contact material current-carrying frictional wear, it is characterized in that: said Control Component links to each other with Power Component through a multifunctional variable-frequency device (9) and threephase asynchronous (3) is controlled.
9. according to claim 1 or the 2 or 3 described testing machines that are used for the contact material current-carrying frictional wear; It is characterized in that: said current-carrying component comprises current-carrying test loop and magnet controlled pressure regulator (6), mutual inductor (7), controlled variable rheostat (1), current transformer (8); Said mutual inductor (7) is added in the output voltage of magnet controlled pressure regulator (6) on the primary coil, and secondary coil inserts in the current-carrying test loop.
10. the testing machine that is used for the contact material current-carrying frictional wear according to claim 9; It is characterized in that: said current transformer (8) adopts LMZJ1-0.5 type current transformer; The center that a circle lead in the said current-carrying test loop passes current transformer (8) is as primary coil, and the size of current that said current transformer (8) is induced illustrates through the reometer that is connected in the secondary circuit.
CN2012200604205U 2012-02-23 2012-02-23 Tester for current-carrier friction abrasion of electric contact materials CN202421000U (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103645102A (en) * 2013-12-16 2014-03-19 西南交通大学 Device for testing frictional wear amount of carbon brush material under current-carrying condition
CN104089840A (en) * 2014-06-10 2014-10-08 华晨汽车集团控股有限公司 Testing device for friction wear property of automobile stamping die material
CN104237038A (en) * 2014-09-03 2014-12-24 北京科技大学 Friction load coupling experimental device and friction load coupling experimental method in marine climate environment
CN105259063A (en) * 2015-09-30 2016-01-20 河南科技大学 Current-carrying friction single-contact-peak arc testing machine
CN105319464A (en) * 2015-10-20 2016-02-10 辽宁蒲石河抽水蓄能有限公司 Measuring method of optimal wearing quantity of brush used for motor
CN105403418A (en) * 2015-12-15 2016-03-16 吉林大学 Motor train unit shaft end grounding apparatus wear test bench
CN105738237A (en) * 2016-05-06 2016-07-06 洛阳理工学院 Horizontal type current-carrying friction arc tester
CN106323786A (en) * 2016-08-31 2017-01-11 合肥工业大学智能制造技术研究院 Horizontal multifunctional current-carrying friction wear tester
CN107014708A (en) * 2017-03-22 2017-08-04 南京神源生智能科技有限公司 One kind rolls current-carrying frictional wear experiment machine
CN108646114A (en) * 2018-06-06 2018-10-12 中车株洲电力机车有限公司 A kind of rail vehicle pantagraph current collector abrasion test system
CN108982273A (en) * 2018-08-08 2018-12-11 湖北工程学院 Current-carrying frictional wear experiment machine and current-carrying frictional wear experiment system
CN109932626A (en) * 2019-04-12 2019-06-25 福州大学 Gas insulated bus contact contact current-carrying frictional wear experiment device and method

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103645102A (en) * 2013-12-16 2014-03-19 西南交通大学 Device for testing frictional wear amount of carbon brush material under current-carrying condition
CN104089840A (en) * 2014-06-10 2014-10-08 华晨汽车集团控股有限公司 Testing device for friction wear property of automobile stamping die material
CN104237038B (en) * 2014-09-03 2016-08-17 北京科技大学 A kind of marine climate environment-frrction load coupling test equipment and test method
CN104237038A (en) * 2014-09-03 2014-12-24 北京科技大学 Friction load coupling experimental device and friction load coupling experimental method in marine climate environment
CN105259063A (en) * 2015-09-30 2016-01-20 河南科技大学 Current-carrying friction single-contact-peak arc testing machine
CN105259063B (en) * 2015-09-30 2018-12-11 河南科技大学 A kind of single contact peak arc test machine of current-carrying friction
CN105319464A (en) * 2015-10-20 2016-02-10 辽宁蒲石河抽水蓄能有限公司 Measuring method of optimal wearing quantity of brush used for motor
CN105403418A (en) * 2015-12-15 2016-03-16 吉林大学 Motor train unit shaft end grounding apparatus wear test bench
CN105403418B (en) * 2015-12-15 2017-11-28 吉林大学 EMUs axle head grounding device wear test platform
CN105738237B (en) * 2016-05-06 2018-07-10 洛阳理工学院 A kind of horizontal current-carrying friction arc test machine
CN105738237A (en) * 2016-05-06 2016-07-06 洛阳理工学院 Horizontal type current-carrying friction arc tester
CN106323786A (en) * 2016-08-31 2017-01-11 合肥工业大学智能制造技术研究院 Horizontal multifunctional current-carrying friction wear tester
CN107014708A (en) * 2017-03-22 2017-08-04 南京神源生智能科技有限公司 One kind rolls current-carrying frictional wear experiment machine
CN107014708B (en) * 2017-03-22 2020-02-28 南京神源生智能科技有限公司 Rolling current-carrying friction wear testing machine
CN108646114A (en) * 2018-06-06 2018-10-12 中车株洲电力机车有限公司 A kind of rail vehicle pantagraph current collector abrasion test system
CN108982273A (en) * 2018-08-08 2018-12-11 湖北工程学院 Current-carrying frictional wear experiment machine and current-carrying frictional wear experiment system
CN109932626A (en) * 2019-04-12 2019-06-25 福州大学 Gas insulated bus contact contact current-carrying frictional wear experiment device and method

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