CN104898054A - Comprehensive performance test device for DC motor rotor commutator and carbon brush - Google Patents
Comprehensive performance test device for DC motor rotor commutator and carbon brush Download PDFInfo
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- CN104898054A CN104898054A CN201410075755.8A CN201410075755A CN104898054A CN 104898054 A CN104898054 A CN 104898054A CN 201410075755 A CN201410075755 A CN 201410075755A CN 104898054 A CN104898054 A CN 104898054A
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- carbon brush
- rotor commutator
- commutator
- rotor
- motor
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- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The objective of the invention is to provide a test device for a DC motor rotor commutator and a carbon brush so that product performance and product quality of a DC motor can be effectively enhanced. The device is composed of two parts of a rotor test stable frame and a control cabinet. The test piece the rotor commutator and the car brush are installed on a detachable fixing support in the test table. A power wire and a test signal wire are connected at the two ends of the carbon brush. The tested rotor commutator is connected with a belt pulley via a rotating shaft, and a structure capable of driving a rotor to rotate is formed by a belt and a dragging motor. The rotor is driven to rotate in a variable speed way by the dragging motor to simulate the working conditions of the motor. The acquisition devices of computers in the control cabinet measure physical quantities of current, voltage, temperature and rotating speed on the rotor communicator via the test signal wire. Data results accurately meet the actual working state of the rotor commutator and the carbon brush so that the working conditions and performance indicators of the rotor commutator and the carbon brush are analyzed.
Description
Technical field:
The invention belongs to the device of motor manufacturing, electric machines test, relate to a kind of proving installation to DC motor rotor commutator and carbon brush performance and quality.
Technical background:
DC motor rotor commutator is the critical piece of direct current generator, and its performance and the quality of quality directly affect quality own and the performance of motor.The rotor commutator Check and Inspections of manufacturer to motor such as current domestic direct current generator, automobile starting motor only do the discrete and Insulation test of general stock size, rotating speed, can only do some simple test projects to carbon brush after motor assembles.And discrete performance index etc. all do not have corresponding testing apparatus during electrical property, the commutator live line work of the test event of other practicality as the thermal behavior of rotor commutator, commutator pressure welding.Determination and analysis is not carried out for carbon brush and carbon brush holder ability yet.These all need to draw test result by carrying out testing again comprehensive analysis after being assembled into motor complete machine, and such test result is difficult to make correct technical conclusion, and test accuracy is had a greatly reduced quality, and some problem just basic being difficult to finds.The performance making some potential and quality problems can enter market along with motor belt motor, are that the motor produced produces hidden danger of quality.Consequence causes damage to motor applying unit and manufacturer.
Summary of the invention:
The object of this invention is to provide a kind of device can tested DC motor rotor commutator and carbon brush, the manufacturer of DC motor manufacturer, commutator and carbon brush uses, and improves properties of product and the product quality of direct current generator.This device is made up of rotor test stand and switch board two parts.Test block is arranged on the detachable fixed mount in test board, and testing power supply and test signal line are connected to carbon brush two ends, and measured piece is connected with belt pulley by rotating shaft, and forming one through belt and dragging motor can the rotor driven structure of rotating.Rotor is speed-changing rotation under the drive of dragging motor, the working condition of simulated machine, the physical quantitys such as electric current, voltage, temperature and rotating speed on rotor commutator measured by the collector of the computing machine in switch board by test signal line, analyze working condition and the performance index of rotor commutator and carbon brush with this.So just before assembling motor, the performance of rotor commutator and carbon brush can be carried out comprehensive analysis and judgement.Data result accurately meets the working condition of rotor commutator and carbon brush, and producing rotor commutator and carbon brush performance index and quality to raising has had technical guarantee.
Accompanying drawing illustrates:
Fig. 1, be embodiment schematic diagram
Fig. 2, be embodiment horse structure figure
Fig. 3, be embodiment carbon brush supporting plate figure
Fig. 4, be embodiment control system figure
Fig. 5, be embodiment schematic diagram
In figure: 1. switch board, 2. testboard bay, 3. metal rack, 4. dragging motor pedestal and dragging motor, 5. metal platen, 6. protective cover, 7. carbon brush supporting plate, 8. top board, 9. top chock, 10. fastening clamp apparatus, 11. commutators, 12. carbon brush holders, 13. rotors, 14. shaft couplings, 15. rotor commutator fixed supports, 16. Double bearing supports, 17, belt pulley.
Embodiment:
Below in conjunction with accompanying drawing 1-Fig. 5 and concrete this example of implementing, structure and working principle of the present invention is described in further detail.
Fig. 1 is the present invention is be made up of switch board (1) and testboard bay (2).
Switch board is provided with testing power supply, controls current loading, computer measurement acquisition system (Fig. 4).Power supply is connected to by load on the carbon brush in testboard bay.Computer acquisition device measures current signal, voltage signal, temperature signal and the tach signal on rotor commutator by test signal line.Testboard bay is the part of installing measured piece.
Fig. 2 is embodiment testboard bay part.Metal rack (3) is provided with one piece of metal platen (5), below platen, is fixed with dragging motor pedestal and dragging motor (4).A circular hole processed by platen, circular hole fixes the bearing seat (16) that is equipped with duplex bearing downwards, a belt pulley (17) is installed in transmission shaft lower end in bearing seat, this belt pulley is connected with the belt pulley of dragging motor by driving belt, and dragging motor can drive transmission shaft to rotate.A shaft coupling (14) is installed at the bottom of transmission shaft top, shaft coupling is connected with the dead end (namely not having commutator end) of rotor (13) and fastening, commutator (11) end of rotor is connected with fastening clamp apparatus (10), and fastening clamp apparatus is arranged on upper axis bearing (9) and goes up and be fixed on the center of top board (8).Top board has four circular holes to be fixed in the fixed orifice on platen by four circular abutments (rotor commutator fixed support) (15).The central point of top board bearing seat will keep concentric with the center of platen step.Four circular abutments are provided with movable carbon brush supporting plate (Fig. 3) (7), carbon brush supporting plate can move up and down, carbon brush supporting plate is installed fixed electrical machinery carbon brush holder (12), when carbon brush on carbon brush holder moves to the position of rotor commutator (11), fix with four fastening bolts on carbon brush supporting plate.Rotor commutator and carbon brush are kept in touch well.Testing power supply output line in switch board and measurement signal line are connected to through testboard bay on the carbon brush on carbon brush holder, and positive and negative terminal connects respectively (Fig. 5).After rotor commutator, carbon brush supporting plate, carbon brush holder, power lead and measurement signal line are all connected and fixed, protective cover (6) are covered and fixes with bolt on platen.Now just test run can be carried out.
During test, dragging motor rotation, the work of rotor driven commutator simulated machine rotate.Carbon brush applies certain voltage with testing power supply, by the size of regulating load, controls the electric current in electric power loop.Electricity consumption condition during simulated machine work.Record the magnitude of voltage of power supply, the magnitude of voltage at carbon brush two ends, the current value in loop, the tachometer value of rotor and the temperature value of commutator.The performance condition of commutator can be analyzed according to these numerical value.With the carbon brush size rotated after certain hour before record rotor rotates, can the abrasion condition of discriminatory analysis carbon brush for electric machine when motor rotation.Observe the surface configuration of commutator, can discriminatory analysis commutator face when motor rotates spark to the ablation situation of commutator.The voltage drop numerical value at survey record carbon brush two ends, by observing the situation of change of voltage drop, can analyze the situation that the process condition that judges that rotor winding is connected with commutator and commutator conduct electricity.These data are all the key factors directly affecting direct current generator quality.These Plotting data being become curve, directly can carry out the comprehensive analysis and research of system to rotor commutator and carbon brush, is the experimental provision improving direct current generator manufacturing level, technical merit, research and development of new product, component test and quality assurance.
Claims (9)
1. DC motor rotor commutator and carbon brush comprehensive performance test device are made up of switch board (1) and testboard bay (2).There is testing power supply in switch board, control current loading, computer measurement acquisition system.It is characterized in that:
I, with the D.C. regulated power supply in switch board for rotor commutator provides testing power supply.
In II, use switch board, adjustable load changes rotor commutator measuring current.
2. DC motor rotor commutator and carbon brush comprehensive performance test device are made up of switch board (1) and testboard bay (2).Dragging motor (4), gear train, rotor commutator fixed support (15), carbon brush fixing device (7) and protective cover (6) is had in testboard bay.It is characterized in that:
I, with dragging motor through belt gear come rotor driven commutator rotate.
II, rotor commutator fixed support (15) to being fixed, and are connected with transmission shaft.
Place carbon brush holder in III, fixed support and contact with commutator.
IV, placement protective cover (6) are fixed with bolt.
3. DC motor rotor commutator according to claim 2 and carbon brush comprehensive performance test device, is characterized in that: below platen (5), be fixed with dragging motor pedestal and dragging motor (4), transmission shaft and bearing seat.
4. DC motor rotor commutator according to claim 2 and carbon brush comprehensive performance test device, is characterized in that: transmission shaft is connected (14) with jig (14) with rotor commutator bottom by flange.Jig can be changed.
5. DC motor rotor commutator according to claim 2 and carbon brush comprehensive performance test device, is characterized in that: on platen, be fixed with four circular abutments, is rotor commutator fixed support (15).
6. DC motor rotor commutator according to claim 2 and carbon brush comprehensive performance test device, is characterized in that: be fixed with top board (8), bearing seat (9) and fastening clamp apparatus (10) assembly at rotor commutator fixed support (15).Fastening clamp apparatus is replaceable.Assembly and rotor commutator support bolt are fixed, and can be separated replacing.
7. DC motor rotor commutator according to claim 2 and carbon brush comprehensive performance test device, is characterized in that: rotor commutator top (i.e. commutator end) is connected with fastening clamp apparatus (10).
8. DC motor rotor commutator according to claim 2 and carbon brush comprehensive performance test device, it is characterized in that: the carbon brush holder supporting plate (7) installing an activity at rotor commutator fixed support (15), supporting plate can move up and down, fastening with set bolt when needing fixing.
9. DC motor rotor commutator according to claim 2 and carbon brush comprehensive performance test device, is characterized in that: carbon brush holder (12) is fixed on (7) on supporting plate, and the position of mounting hole on supporting plate adapts to dissimilar carbon brush holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410075755.8A CN104898054A (en) | 2014-03-04 | 2014-03-04 | Comprehensive performance test device for DC motor rotor commutator and carbon brush |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410075755.8A CN104898054A (en) | 2014-03-04 | 2014-03-04 | Comprehensive performance test device for DC motor rotor commutator and carbon brush |
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| CN104898054A true CN104898054A (en) | 2015-09-09 |
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| CN201410075755.8A Pending CN104898054A (en) | 2014-03-04 | 2014-03-04 | Comprehensive performance test device for DC motor rotor commutator and carbon brush |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467320A (en) * | 2016-01-19 | 2016-04-06 | 朱存彬 | Generator excitation carbon brush on-line monitoring system and monitoring method |
| CN106019156A (en) * | 2016-08-04 | 2016-10-12 | 德恩科电机（太仓）有限公司 | Motor testing system and method |
| CN107942923A (en) * | 2017-12-31 | 2018-04-20 | 河南和实科技有限公司 | A kind of high ferro earthing or grounding means carbon brush performance test stand |
| CN109546804A (en) * | 2019-01-25 | 2019-03-29 | 上海鲲航智能科技有限公司 | A kind of Principle of Electric Engine experiment pedestal and application |
| CN109932652A (en) * | 2019-03-31 | 2019-06-25 | 横店集团英洛华电气有限公司 | Rotor and commutator dry joint detection device |
| CN110542856A (en) * | 2019-08-28 | 2019-12-06 | 福建福清核电有限公司 | offline testing system and method for generator rotor grounding protection carbon brush device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467320A (en) * | 2016-01-19 | 2016-04-06 | 朱存彬 | Generator excitation carbon brush on-line monitoring system and monitoring method |
| CN106019156A (en) * | 2016-08-04 | 2016-10-12 | 德恩科电机（太仓）有限公司 | Motor testing system and method |
| CN107942923A (en) * | 2017-12-31 | 2018-04-20 | 河南和实科技有限公司 | A kind of high ferro earthing or grounding means carbon brush performance test stand |
| CN107942923B (en) * | 2017-12-31 | 2024-04-02 | 河南和实科技有限公司 | Carbon brush performance test bed for high-speed rail grounding device |
| CN109546804A (en) * | 2019-01-25 | 2019-03-29 | 上海鲲航智能科技有限公司 | A kind of Principle of Electric Engine experiment pedestal and application |
| CN109932652A (en) * | 2019-03-31 | 2019-06-25 | 横店集团英洛华电气有限公司 | Rotor and commutator dry joint detection device |
| CN110542856A (en) * | 2019-08-28 | 2019-12-06 | 福建福清核电有限公司 | offline testing system and method for generator rotor grounding protection carbon brush device |
| CN110542856B (en) * | 2019-08-28 | 2021-06-22 | 福建福清核电有限公司 | Offline testing system and method for generator rotor grounding protection carbon brush device |
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Application publication date: 20150909 |