CN107727881A - Motor speed method of testing and test suite - Google Patents
Motor speed method of testing and test suite Download PDFInfo
- Publication number
- CN107727881A CN107727881A CN201610661873.6A CN201610661873A CN107727881A CN 107727881 A CN107727881 A CN 107727881A CN 201610661873 A CN201610661873 A CN 201610661873A CN 107727881 A CN107727881 A CN 107727881A
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- China
- Prior art keywords
- photoelectric sensor
- sensor switch
- light
- sampling
- tachometer disc
- Prior art date
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- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 67
- 238000010998 test method Methods 0.000 title claims abstract description 11
- 238000005070 sampling Methods 0.000 claims abstract description 49
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The present invention relates to motor speed method of testing and test suite.Motor speed test suite includes photoelectric sensor switch and tachometer disc.An at least light-transmitting opening is machined with the tachometer disc, is rotated for being sleeved on the output shaft of tested motor with the output shaft of the tested motor.When tachometer disc is sleeved on the output shaft of tested motor, sampling gap between two sampling supports of tachometer disc insertion photoelectric sensor switch, ensure during tachometer disc is with the output shaft rotation of tested motor, the light that light emitting devices is sent can pass through light-transmitting opening and be received by light receiving element.Motor speed test circuit of the present invention and electromechanical testing circuit are completely isolated, do not influenceed and changed by electric moter voltage, electric current and power, test result is intuitively accurate, suitable for be repeated several times switch photoelectric sensor switch can long-term stable operation and to ensure that test result is stablized accurate.
Description
Technical field
The present invention relates to inspection testing method and device, more particularly to the method and device that measurement of rotating speed is carried out to motor.
Background technology
Prior art be used to dispatching from the factory motor or motor quality inspection motor speed waveform testing method be connected in electromechanical testing circuit a high-power low value sampling resistor to current sampling, oscillograph is accessed at sampling resistor both ends, motor speed is determined by sampling resistor both ends waveform.Prior art motor rotatation speed test method needs to determine the resistance of sampling resistor according to the rated voltage and current parameters of tested motor, and changes the sampling resistor of respective resistance values, and test process is more numerous and diverse, easily causes sampling resistor damage.In addition, being tested when for a long time using same sampling resistor, resistance easily generates heat and causes the wave distortion of oscillograph, reduces testing precision.
The content of the invention
The technical problem to be solved in the present invention is to avoid the deficiencies in the prior art part and propose a kind of measurement of rotating speed circuit and the completely isolated motor speed method of testing of electromechanical testing circuit of making, Sampling device is used as by the use of photoelectric sensor switch, the defects of overcoming prior art sampling resistor to bring, easily operated, test result is stablized accurate.
The present invention, which solves the technical problem, to be realized by using following technical scheme：
A kind of motor speed method of testing is proposed, is comprised the following steps：
A. structure includes photoelectric sensor switch and tests the motor speed test circuit of power supply；
Photoelectric sensor switch is fixedly mounted, the photoelectric sensor switch sets two sampling supports, makes to form sampling gap between two sampling supports；Light emitting devices and light receiving element are set respectively on two sampling supports so that,
When the light that light emitting devices is sent can be received by light receiving element, photoelectric sensor switch electrical conductive communication；When the light that light emitting devices is sent can not be received by light receiving element, photoelectric sensor switch power-off open circuit；
B. the tachometer disc for being machined with an at least light-transmitting opening thereon is set with the output shaft of tested motor, the cross section of tachometer disc makes tachometer disc be rotated with the output shaft of tested motor perpendicular to the axis of the output shaft of tested motor；
C., tested motor position is set, makes the sampling gap between two sampling supports of tachometer disc insertion photoelectric sensor switch, it is ensured that in the rotation process of tachometer disc, the light that light emitting devices is sent can pass through light-transmitting opening and be received by light receiving element；
D. the rotating speed of tested motor is calculated by the electrical conductive communication frequency of testing photoelectronic inductive switch.
In order to intuitively observe test result, step D is included as follows step by step,
D1. oscillograph is electrically connected in the output end of photoelectric sensor switch；
D2. the electrical conductive communication frequency of the photoelectric sensor switch is read by the waveform of the output end of the photoelectric sensor switch shown by oscillograph；
D3. the rotating speed of test panel is calculated with the electrical conductive communication frequency of the photoelectric sensor switch read of D2 step by step, the rotating speed is exactly the rotating speed of tested motor.
The present invention, which solves the technical problem, to be realized by using following technical scheme：
Design, manufacture a kind of motor speed test suite, especially including motor speed test circuit and tachometer disc；Motor speed test circuit includes photoelectric sensor switch and test power supply.The photoelectric sensor switch sets two sampling supports, so as to form sampling gap between two sampling supports；Light emitting devices and light receiving element are set respectively on two sampling supports so that, when the light that light emitting devices is sent can be received by light receiving element, photoelectric sensor switch electrical conductive communication；When the light that light emitting devices is sent can not be received by light receiving element, photoelectric sensor switch power-off open circuit.An at least light-transmitting opening is machined with the tachometer disc, is rotated for being sleeved on the output shaft of tested motor with the output shaft of the tested motor.When tachometer disc is sleeved on the output shaft of tested motor, sampling gap between two sampling supports of tachometer disc insertion photoelectric sensor switch, ensure during tachometer disc is with the output shaft rotation of tested motor, the light that light emitting devices is sent can pass through light-transmitting opening and be received by light receiving element.
In order to which photoelectric sensor switch is fixedly mounted, motor speed test suite also includes being used for the fixed support that photoelectric sensor switch is fixedly mounted.
In order to intuitively observe test result, motor speed test suite also includes the sample port of the output end of electrical connection photoelectric sensor switch, and the sample port is used to electrically connect oscillograph, so that the waveform of the output end of oscilloscope display photoelectric sensor switch.
Compared with the existing technology compared with " motor speed method of testing and test suite " of the invention has technical effect that：
Motor speed test circuit and electromechanical testing circuit are completely isolated, do not influenceed and changed by electric moter voltage, electric current and power, test result is intuitively accurate, suitable for be repeated several times switch photoelectric sensor switch can long-term stable operation and to ensure that test result is stablized accurate.
Brief description of the drawings
Fig. 1 is the orthographic projection schematic front view of " motor speed method of testing and test suite " preferred embodiment of the invention；
Fig. 2 is the orthographic projection left view schematic diagram of the preferred embodiment；
Fig. 3 is the orthographic projection schematic rear view of the preferred embodiment.
Embodiment
It is described in further detail below in conjunction with preferred embodiment shown in accompanying drawing.
The present invention proposes a kind of motor speed method of testing, as shown in Figure 1 to Figure 3, comprises the following steps：
A. structure includes photoelectric sensor switch 1 and tests the motor speed test circuit of power supply；The necessary device of other maintenance motor speed test circuit stable operations should be also set in the motor speed test circuit in addition to test power supply and photoelectric sensor switch 1, such as the divider resistance of photoelectric sensor switch 1 is series at, or it is parallel to the shunt resistance of photoelectric sensor switch 1；
As shown in figures 1 and 3, photoelectric sensor switch 1 is fixedly mounted, the photoelectric sensor switch 1 sets two sampling supports 11, makes to form sampling gap 12 between two sampling supports 11；Light emitting devices and light receiving element are set respectively on two sampling supports 11 so that,
When the light that light emitting devices is sent can be received by light receiving element, the electrical conductive communication of photoelectric sensor switch 1；When the light that light emitting devices is sent can not be received by light receiving element, the power-off open circuit of photoelectric sensor switch 1；
B. the tachometer disc 2 for being machined with an at least light-transmitting opening thereon is set with the output shaft 41 of tested motor 4, the cross section of tachometer disc 2 makes tachometer disc 2 be rotated with the output shaft 41 of tested motor 4 perpendicular to the axis of the output shaft 41 of tested motor 4；
Above-mentioned steps A and B can exchange position implementation, that is, not limit their execution sequence above；
C., the position of tested motor 4, the sampling gap 12 for making tachometer disc 2 insert between two sampling supports 11 of photoelectric sensor switch 1 are set, it is ensured that in the rotation process of tachometer disc 2, the light that light emitting devices is sent can pass through light-transmitting opening and be received by light receiving element；So as to the frequency for passing through sampling gap by the light-transmitting opening of the break-make situation of photoelectric sensor switch 1 reflection tachometer disc 2；
D. the rotating speed of tested motor 4 is calculated by the electrical conductive communication frequency of testing photoelectronic inductive switch 1.
In order to intuitively observe test result, the electrical conductive communication frequency that the preferred embodiment of the present invention passes through the waveform visual test of the output end of photoelectric sensor switch 1 photoelectric sensor switch 1, then above step D is included as follows step by step,
D1. oscillograph is electrically connected in the output end of photoelectric sensor switch 1；
D2. the electrical conductive communication frequency of the photoelectric sensor switch 1 is read by the waveform of the output end of the photoelectric sensor switch 1 shown by oscillograph；
D3. the rotating speed of test panel 2 is calculated with the electrical conductive communication frequency of the photoelectric sensor switch read of D2 step by step, the rotating speed is exactly the rotating speed of tested motor 4.
Motor speed test circuit of the present invention and electromechanical testing circuit are completely isolated, do not influenceed and changed by electric moter voltage, electric current and power, test result is intuitively accurate, suitable for be repeated several times switch photoelectric sensor switch 1 can long-term stable operation and to ensure that test result is stablized accurate.
Based on the above method, the present invention also proposes a kind of motor speed test suite, as shown in Figure 1 to Figure 3, including motor speed test circuit and tachometer disc 2.Motor speed test circuit includes photoelectric sensor switch 1 and test power supply.Similarly, the necessary device of other maintenance motor speed test circuit stable operations should be also set in the motor speed test circuit in addition to test power supply and photoelectric sensor switch 1.The photoelectric sensor switch 1 sets two sampling supports 11, so as to form sampling gap 12 between two sampling supports 11.Light emitting devices and light receiving element are set respectively on two sampling supports 11 so that, when the light that light emitting devices is sent can be received by light receiving element, the electrical conductive communication of photoelectric sensor switch 1；When the light that light emitting devices is sent can not be received by light receiving element, the power-off open circuit of photoelectric sensor switch 1.An at least light-transmitting opening is machined with the tachometer disc 2, is rotated for being sleeved on the output shaft 41 of tested motor 4 with the output shaft 41 of the tested motor 4.When tachometer disc 2 is sleeved on the output shaft 41 of tested motor 4, sampling gap 12 between two sampling supports 11 of the tachometer disc 2 insertion photoelectric sensor switch 1, ensure to pass through light-transmitting opening in tachometer disc 2 with the light that in the rotation process of output shaft 41 of tested motor 4, light emitting devices is sent and be received by light receiving element.The power line 42 of the tested motor 4 is used to access electromechanical testing circuit or directly electrically connects power supply and normal operation.
In order to which photoelectric sensor switch 1, the preferred embodiment of the present invention is fixedly mounted, as shown in figure 1, motor speed test suite also includes being used for the fixed support 3 that photoelectric sensor switch 1 is fixedly mounted.
In order to intuitively observe test result, the preferred embodiment of the present invention, as shown in Figure 2, motor speed test suite also includes the sample port 13 of the output end of electrical connection photoelectric sensor switch 1, the sample port 13 is used to electrically connect oscillograph, so that the waveform of the output end of oscilloscope display photoelectric sensor switch 1.
Claims (5)
1. a kind of motor speed method of testing, it is characterised in that comprise the following steps：
A. structure includes photoelectric sensor switch and tests the motor speed test circuit of power supply；
Photoelectric sensor switch is fixedly mounted, the photoelectric sensor switch sets two sampling supports, makes to form sampling gap between two sampling supports；Light emitting devices and light receiving element are set respectively on two sampling supports so that,
When the light that light emitting devices is sent can be received by light receiving element, photoelectric sensor switch electrical conductive communication；When the light that light emitting devices is sent can not be received by light receiving element, photoelectric sensor switch power-off open circuit；
B. the tachometer disc for being machined with an at least light-transmitting opening thereon is set with the output shaft of tested motor, the cross section of tachometer disc makes tachometer disc be rotated with the output shaft of tested motor perpendicular to the axis of the output shaft of tested motor；
C., tested motor position is set, makes the sampling gap between two sampling supports of tachometer disc insertion photoelectric sensor switch, it is ensured that in the rotation process of tachometer disc, the light that light emitting devices is sent can pass through light-transmitting opening and be received by light receiving element；
D. the rotating speed of tested motor is calculated by the electrical conductive communication frequency of testing photoelectronic inductive switch.
2. motor speed method of testing according to claim 1, it is characterised in that：
Step D is included as follows step by step,
D1. oscillograph is electrically connected in the output end of photoelectric sensor switch；
D2. the electrical conductive communication frequency of the photoelectric sensor switch is read by the waveform of the output end of the photoelectric sensor switch shown by oscillograph；
D3. the rotating speed of test panel is calculated with the electrical conductive communication frequency of the photoelectric sensor switch read of D2 step by step, the rotating speed is exactly the rotating speed of tested motor.
A kind of 3. motor speed test suite, it is characterised in that：
Including motor speed test circuit and tachometer disc；Motor speed test circuit includes photoelectric sensor switch and test power supply；
The photoelectric sensor switch sets two sampling supports, so as to form sampling gap between two sampling supports；Light emitting devices and light receiving element are set respectively on two sampling supports so that,
When the light that light emitting devices is sent can be received by light receiving element, photoelectric sensor switch electrical conductive communication；When the light that light emitting devices is sent can not be received by light receiving element, photoelectric sensor switch power-off open circuit；
An at least light-transmitting opening is machined with the tachometer disc, is rotated for being sleeved on the output shaft of tested motor with the output shaft of the tested motor；
When tachometer disc is sleeved on the output shaft of tested motor, sampling gap between two sampling supports of tachometer disc insertion photoelectric sensor switch, ensure during tachometer disc is with the output shaft rotation of tested motor, the light that light emitting devices is sent can pass through light-transmitting opening and be received by light receiving element.
4. motor speed test suite according to claim 3, it is characterised in that：
Also include being used for the fixed support that photoelectric sensor switch is fixedly mounted.
5. motor speed test suite according to claim 3, it is characterised in that：
Also include the sample port of the output end of electrical connection photoelectric sensor switch, the sample port is used to electrically connect oscillograph, so that the waveform of the output end of oscilloscope display photoelectric sensor switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610661873.6A CN107727881A (en) | 2016-08-14 | 2016-08-14 | Motor speed method of testing and test suite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610661873.6A CN107727881A (en) | 2016-08-14 | 2016-08-14 | Motor speed method of testing and test suite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107727881A true CN107727881A (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610661873.6A Pending CN107727881A (en) | 2016-08-14 | 2016-08-14 | Motor speed method of testing and test suite |
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| CN (1) | CN107727881A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6443498A (en) * | 1987-08-10 | 1989-02-15 | Fmc Corp | Tachometer for winding drum |
| CN104181326A (en) * | 2013-05-27 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Device for measuring rotating speed of motor |
| CN104634993A (en) * | 2015-02-10 | 2015-05-20 | 广州广电运通金融电子股份有限公司 | Motor rotating direction and rotating speed detection device and method |
-
2016
- 2016-08-14 CN CN201610661873.6A patent/CN107727881A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6443498A (en) * | 1987-08-10 | 1989-02-15 | Fmc Corp | Tachometer for winding drum |
| CN104181326A (en) * | 2013-05-27 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Device for measuring rotating speed of motor |
| CN104634993A (en) * | 2015-02-10 | 2015-05-20 | 广州广电运通金融电子股份有限公司 | Motor rotating direction and rotating speed detection device and method |
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Application publication date: 20180223 |