CN220730376U - Two-in-one no-load counter electromotive force testing device - Google Patents
Two-in-one no-load counter electromotive force testing device Download PDFInfo
- Publication number
- CN220730376U CN220730376U CN202322121666.XU CN202322121666U CN220730376U CN 220730376 U CN220730376 U CN 220730376U CN 202322121666 U CN202322121666 U CN 202322121666U CN 220730376 U CN220730376 U CN 220730376U
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- motor
- speed reducer
- driving motor
- output
- electromotive force
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The utility model relates to the field of motor testing, in particular to a two-in-one no-load counter electromotive force testing device. The utility model provides a two unification no-load counter electromotive force testing arrangement, includes motor (1), characterized by: the motor driving device also comprises a speed reducer (2), a first driving motor (3) and a second driving motor (4), wherein the speed reducer (2) and the motor (1) share a shell to form a whole; the first driving motor (3) and the second driving motor (4) are respectively meshed with a differential mechanism of the speed reducer (2) through splines, and the motor (1) runs in an idle mode to measure the three-phase line voltage of the motor (1). The utility model has simple structure and strong adaptability.
Description
Technical Field
The utility model relates to the field of motor testing, in particular to a two-in-one no-load counter electromotive force testing device.
Background
The motor needs to test various performances under an idle state, and during the test, the motor to be tested needs to be connected with a speed reducer, and then the servo motor drives the motor to be tested to rotate so as to obtain various performance parameters of the motor to be tested under the idle state. Because the motor to be tested and the speed reducer are respectively independent two parts, the number of the parts on the whole of the test equipment is large, and the structure is complex.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides motor testing equipment with simple structure and strong adaptability, and discloses a two-in-one no-load counter electromotive force testing device.
The utility model achieves the aim through the following technical scheme:
the utility model provides a two unification no-load counter electromotive force testing arrangement, includes the motor, characterized by: also comprises a speed reducer, a first driving motor and a second driving motor,
the speed reducer and the motor share a shell to form a whole; the first driving motor and the second driving motor are respectively meshed with a differential mechanism of the speed reducer through splines, and the motors run in an idle mode to measure the three-phase line voltage of the motors.
The two-in-one no-load counter electromotive force testing device is characterized in that: the speed reducer comprises an input shaft, a speed reducing gear set, a differential mechanism and two output shafts, wherein the input end of the input shaft is used as the input end of the speed reducer, the output end of the input shaft is connected with the input end of the speed reducing gear set, the output end of the speed reducing gear set is connected with the input end of the differential mechanism, the two output ends of the differential mechanism are respectively connected with the input end of one output shaft, and the output ends of the two output shafts are used as the two output ends of the speed reducer.
When the utility model is used, the motor runs in a no-load mode to measure the three-phase line voltage of the motor. The electric potential generated by the motor during operation is proportional to the rotating speed of the motor; and (3) giving the same rotating speed of the first driving motor and the second driving motor, and measuring the three-phase voltage value of the motors by using an oscilloscope.
The back electromotive force is generally measured by a single motor by a reverse pulling method, namely: the motor to be tested is dragged by the prime motor, the generator is operated in idle load under the synchronous rotation speed, and three line voltages at the output end of the motor to be tested are measured. The utility model adopts a two-in-one motor which does not measure a single motor but measures a speed reducer and a motor.
The utility model has the following beneficial effects:
1. the production and manufacturing process of the product is upgraded, the reducer and the motor share the end cover,
2. the number of parts is reduced, and the cost of the whole machine is reduced.
Drawings
Figure 1 is a schematic view of the structure of the present utility model,
fig. 2 is a schematic diagram of the structure of the decelerator in the present utility model.
Description of the embodiments
The utility model is further illustrated by the following specific examples.
Examples
The utility model provides a two unification no-load back electromotive force testing arrangement, includes motor 1, reduction gear 2, first driving motor 3 and second driving motor 4, as shown in figure 1, and specific structure is:
the speed reducer 2 and the motor 1 share a shell to form a whole; the first driving motor 3 and the second driving motor 4 are respectively engaged with a differential gear of the speed reducer 2 through splines, and the motor 1 runs in a no-load mode to measure the three-phase line voltage of the motor 1.
In this embodiment, the decelerator 2 is as shown in fig. 2: the speed reducer 2 comprises an input shaft 21, a speed reduction gear set 22, a differential 23 and two output shafts 24, wherein the input end of the input shaft 21 serves as the input end of the speed reducer 2, the output end of the input shaft 21 is connected with the input end of the speed reduction gear set 22, the output end of the speed reduction gear set 22 is connected with the input end of the differential 23, the two output ends of the differential 23 are respectively connected with the input end of one output shaft 24, and the output ends of the two output shafts 24 serve as the two output ends of the speed reducer 2.
When the embodiment is used, the motor 1 runs empty to measure the three-phase line voltage of the motor 1. The electric potential generated by the motor 1 during operation is proportional to the rotational speed of the motor 1; and (3) giving the same rotation speed of the first driving motor 3 and the second driving motor 4, and measuring the three-phase voltage value of the motor 1 by using an oscilloscope.
Claims (2)
1. The utility model provides a two unification no-load counter electromotive force testing arrangement, includes motor (1), characterized by: also comprises a speed reducer (2), a first driving motor (3) and a second driving motor (4),
the speed reducer (2) and the motor (1) share a shell to form a whole; the first driving motor (3) and the second driving motor (4) are respectively meshed with a differential mechanism of the speed reducer (2) through splines, and the motor (1) runs in an idle mode to measure the three-phase line voltage of the motor (1).
2. The two-in-one no-load back emf test device of claim 1, wherein: the speed reducer (2) comprises an input shaft (21), a speed reduction gear set (22), a differential mechanism (23) and two output shafts (24), wherein the input end of the input shaft (21) serves as the input end of the speed reducer (2), the output end of the input shaft (21) is connected with the input end of the speed reduction gear set (22), the output end of the speed reduction gear set (22) is connected with the input end of the differential mechanism (23), the two output ends of the differential mechanism (23) are respectively connected with the input end of the output shaft (24), and the output ends of the two output shafts (24) serve as the two output ends of the speed reducer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322121666.XU CN220730376U (en) | 2023-08-08 | 2023-08-08 | Two-in-one no-load counter electromotive force testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322121666.XU CN220730376U (en) | 2023-08-08 | 2023-08-08 | Two-in-one no-load counter electromotive force testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220730376U true CN220730376U (en) | 2024-04-05 |
Family
ID=90494164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322121666.XU Active CN220730376U (en) | 2023-08-08 | 2023-08-08 | Two-in-one no-load counter electromotive force testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220730376U (en) |
-
2023
- 2023-08-08 CN CN202322121666.XU patent/CN220730376U/en active Active
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