CN203705140U - Motor detection device - Google Patents
Motor detection device Download PDFInfo
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- CN203705140U CN203705140U CN201320746365.XU CN201320746365U CN203705140U CN 203705140 U CN203705140 U CN 203705140U CN 201320746365 U CN201320746365 U CN 201320746365U CN 203705140 U CN203705140 U CN 203705140U
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- motor
- fixture
- tested
- shaking table
- detection apparatus
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Abstract
The utility model provides a motor detection device. The motor detection device comprises a vibration bench (20), and a clamping tool (30) which is connected on the vibration bench (20), and is used for mounting a mounting part of a motor (10) to be tested. With the motor detection device, the problem that the defect of a motor can not be identified in the prior art is solved.
Description
Technical field
The utility model relates to motor detection technique field, in particular to a kind of motor detection apparatus.
Background technology
At present, no matter be domestic air conditioning or business air conditioner field, common fault has a lot, and wherein, electrical fault is rank prostatitis always.If air conditioner motor exists defect, as disconnected in axle, axle is curved, noise, stress are concentrated and design defect etc., the multiple tracks inspection process (as electric performance test, stall, long-term operation etc.) arranging in factory is difficult to find above-mentioned defect.
At air-conditioning in transit, due to the effect of jolting in transit, above-mentioned defect can be exaggerated.When air-conditioning work, use and can cause the faults such as motor shaft is disconnected, axle is curved, noise with the motor of above-mentioned defect.After motor produces fault, the normal work of air-conditioning is affected, and need to again change motor.Therefore, the reliability of motor plays very important effect in the process of operation of air conditioner.
Utility model content
The utility model aims to provide a kind of motor detection apparatus, to solve the problem that can not identify motor defect in prior art.
To achieve these goals, the utility model provides a kind of motor detection apparatus, comprising: shaking table; Fixture, is connected on shaking table, and fixture has the installation portion for motor to be tested is installed.
Further, motor to be tested comprises motor body and the motor shaft that passes motor body, and installation portion is the mounting hole coordinating with motor body.
Further, motor detection apparatus also comprises the first securing member, and motor to be tested is fixedly mounted on fixture by the first securing member.
Further, fixture is cast member.
Further, the material of fixture is magnesium or aluminium.
Application the technical solution of the utility model, motor to be tested is fixed on by fixture on the work top of shaking table, and the vibration transmission that shaking table is produced arrives fixture, then passes to motor to be tested by fixture, and then realizes jolting in simulate way.Carry out after the vibration of a period of time, determine by observing the motor shaft of motor to be tested whether motor to be tested exists defect.Like this, can effectively monitor motor performance, improve the quality of products and guarantee accuracy.Motor detection apparatus is simple in structure, and motor detects more convenient, can realize quick test and obtain result.Stability is high, reliable in the course of the work after detection, not have defective motor.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows according to the structural representation of the embodiment of motor detection apparatus of the present utility model; And
Fig. 2 show the motor detection apparatus of Fig. 1 detection method schematic flow sheet.
Above-mentioned accompanying drawing comprises the following drawings mark:
10, motor to be tested; 20, shaking table; 30, fixture; 31, web member; 40, the second securing member; 50, fictitious load.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Figure 1, motor detection apparatus involving vibrations platform 20 and the fixture 30 of the present embodiment.Fixture 30 is connected on shaking table 20, and fixture 30 has the installation portion for motor 10 to be tested is installed.
The motor detection apparatus of application the present embodiment, motor 10 to be tested is fixed on by fixture 30 on the work top of shaking table 20, the vibration transmission that shaking table 20 is produced arrives fixture 30, then passes to motor 10 to be tested by fixture 30, and then realizes jolting in simulate way.Carry out after the vibration of a period of time, determine by observing the motor shaft of motor 10 to be tested whether motor to be tested exists defect.Like this, can effectively monitor motor performance, improve the quality of products and guarantee accuracy.Motor detection apparatus is simple in structure, and motor detects more convenient, can realize quick test and obtain result.Stability is high, reliable in the course of the work after detection, not have defective motor.
In the present embodiment, motor 10 to be tested comprises motor body and the motor shaft that passes motor body, and installation portion is the mounting hole coordinating with motor body.Mounting hole can conveniently be arranged on motor 10 to be tested on fixture 30, and fictitious load 50 is installed on motor shaft, simulates the normal operation situation of motor 10 to be tested.Fictitious load 50 can be fan blade or simulation fan blade.
In the present embodiment, motor detection apparatus also comprises the first securing member, and motor 10 to be tested is fixedly mounted on fixture 30 by the first securing member.Motor 10 to be tested can be fixed on fixture 30 like this, can guarantee that the vibration frequency of fixture 30 is consistent with the frequency that motor 10 to be tested vibrates.The principle that fixture 30 designs is to meet under the prerequisite that motor 10 to be tested installs, and fixture 30 has low quality, high rigidity as far as possible, does not occur as far as possible or few resonance that occurs in test frequency range.Because the quality of magnesium and aluminum ratio steel is little, damping characteristic is better than steel, and processing cost is also lower, and the material of fixture 30 adopts magnesium and aluminium more.The method of fixture 30 use castings is made.
Preferably, the both sides of fixture 30 are provided with web member 31, and web member 31 has the connecting hole passing for the second securing member 40, and the second securing member 40 is fixed on fixture 30 on shaking table 20 through connecting hole.Be fastenedly connected and can make the vibration frequency of shaking table 20 and the vibration frequency of fixture 30 be consistent, can guarantee to vibrate and pass to motor 10 to be tested, to guarantee detection accuracy.
The size of fixture 30 should be determined according to motor 10 sizes to be tested, and fixture 30 sizes process with whole block material when little conventionally, and fixture 30 sizes are made by the method for welding and casting when larger.Design should first clear and definite test condition when fixture 30, as acceleration unevenness and the transverse vibration etc. of the frequency range of the energy level of sinusoidal and random vibration and franchise, sine sweep, random vibration power spectral density plot, mounting condition, permission.Then resonant frequency and the quality of calculating fixture 30, make it to meet testing requirements.For less motor to be tested 10, the resonant frequency of fixture 30 does not allow lower than 1000Hz, should reach 3～4 times of test specimen low-limit frequency simultaneously.After fixture 30 machines, necessary check should be carried out, for important and conventional fixture, as card extender, expanding table etc., comprehensive performance test be carried out, with the accuracy of warranty test.
As shown in Figure 2, the motor detection method while utilizing the preferred embodiment of the application's motor detection apparatus to detect motor comprises the following steps:
Step S10: fixture 30 is connected on shaking table 20, the natural frequency of test fixture 30, the relatively natural frequency of fixture 30 and the setpoint frequency of shaking table 20, when the natural frequency of fixture 30 and the setpoint frequency of shaking table 20 are when consistent, by fixture 30, motor 10 to be tested is fixed on shaking table 20;
Step S20: under preset frequency, utilize shaking table 20 that motor 10 to be tested is vibrated;
Step S30: observe the motor shaft of motor 10 to be tested, to determine whether motor 10 to be tested exists defect.
Motor 10 to be tested is fixed on by fixture on the work top of shaking table, and the vibration transmission that shaking table is produced arrives fixture, then passes to motor 10 to be tested by fixture, and then realizes jolting in simulate way.Carry out after the vibration of a period of time, determine by observing the motor shaft of motor 10 to be tested whether motor 10 to be tested exists defect.Like this, can effectively monitor motor performance, improve the quality of products and guarantee accuracy.Motor detection method is convenient, can realize quick test and obtain result.Stability is high, reliable in the course of the work after detection, not have defective motor.
Motor 10 to be tested is the in the situation that of vibration, and motor shaft may deform or rupture, and in the time that motor shaft does not deform or ruptures, determines that motor 10 to be tested does not have defect.Motor detection method can treat that the axle of testing of electric motors 10 is disconnected, axle is curved, noise, stress are concentrated, design defect etc. tested fast, can improve several times efficiency.Simultaneously to reliably effectively the monitoring of air conditioner motor, and can judge fast its reliability, improve the quality of products and guarantee accuracy.Preferably, preset frequency is 18Hz.
In step S10, judge when whether the fixed frequency of shaking table 20 is identical with the setpoint frequency of test fixture 30, the vibration frequency of shaking table 20 and test fixture 30 is consistent, test both amplitudes, in the time that amplitude equates, think that the natural frequency of shaking table 20 is consistent with the setpoint frequency of test fixture 30.The generation of erroneous judgement can be prevented from like this causing because of a variety of causes of equipment and fixture 30, assessment frock can also be effectively checked.
In step S20, further comprising the steps: to make motor 10 to be tested under different vibration displacement conditions.The difference of vibration displacement, the also difference of situation that motor shaft deforms or ruptures.Identical when the time of measuring, when vibration displacement is different, the variation of the inside of motor shaft is also different, in the time that significantly distortion or fracture do not occur motor shaft, confirms that motor 10 to be tested does not have defect.
In step S20, further comprising the steps: the time of vibration difference of motor 10 to be tested under each vibration displacement condition.The difference of time of vibration, can detect the situation that the motor shaft of motor 10 to be tested deforms or ruptures better, can detect fast better.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a motor detection apparatus, is characterized in that, comprising:
Shaking table (20);
Fixture (30), be connected on described shaking table (20), described fixture (30) has the installation portion for motor to be tested (10) are installed, described motor to be tested (10) comprises motor body and the motor shaft that passes described motor body, and described installation portion is the mounting hole coordinating with described motor body.
2. motor detection apparatus according to claim 1, is characterized in that, also comprises the first securing member, and described motor to be tested (10) is fixedly mounted on described fixture (30) by described the first securing member.
3. motor detection apparatus according to claim 1, is characterized in that, described fixture (30) is cast member.
4. motor detection apparatus according to claim 1, is characterized in that, the material of described fixture (30) is magnesium or aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746365.XU CN203705140U (en) | 2013-11-22 | 2013-11-22 | Motor detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746365.XU CN203705140U (en) | 2013-11-22 | 2013-11-22 | Motor detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705140U true CN203705140U (en) | 2014-07-09 |
Family
ID=51055562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320746365.XU Expired - Fee Related CN203705140U (en) | 2013-11-22 | 2013-11-22 | Motor detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203705140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655375A (en) * | 2013-11-22 | 2015-05-27 | 珠海格力电器股份有限公司 | Motor detection device and detection method thereof |
| CN105988083A (en) * | 2015-02-13 | 2016-10-05 | 江苏美的清洁电器股份有限公司 | Motor detection apparatus |
-
2013
- 2013-11-22 CN CN201320746365.XU patent/CN203705140U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655375A (en) * | 2013-11-22 | 2015-05-27 | 珠海格力电器股份有限公司 | Motor detection device and detection method thereof |
| CN105988083A (en) * | 2015-02-13 | 2016-10-05 | 江苏美的清洁电器股份有限公司 | Motor detection apparatus |
| CN105988083B (en) * | 2015-02-13 | 2018-10-19 | 江苏美的清洁电器股份有限公司 | Motor detection apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20211122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |