CN215813212U - Motor back electromotive force testing arrangement - Google Patents
Motor back electromotive force testing arrangement Download PDFInfo
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- CN215813212U CN215813212U CN202120765096.6U CN202120765096U CN215813212U CN 215813212 U CN215813212 U CN 215813212U CN 202120765096 U CN202120765096 U CN 202120765096U CN 215813212 U CN215813212 U CN 215813212U
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- motor
- electromotive force
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- back electromotive
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Abstract
The utility model discloses a motor back electromotive force testing device, which comprises a base and is characterized in that: the device also comprises a first bracket, a sleeve, a second bracket, a bearing, a rotating shaft, a chuck, a motor and a sliding mechanism; the first support is arranged at one end of the base, the sleeve is transversely detachably arranged on the first support, the second support is arranged at the other end of the base and can slide left and right relative to the base, the bearing is transversely arranged on the second support and can slide left and right relative to the base along with the second support, the rotating shaft is inserted into the bearing, and the chuck is transversely detachably arranged at one end of the rotating shaft and can rotate along with the rotating shaft; the jaws of the chuck face the ports of the sleeve; the motor is connected with the other end of the rotating shaft and drives the rotating shaft to rotate. The scheme of this application can be applicable to not unidimensional rotor and stator test, and the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of motor part testing, and particularly relates to a motor back electromotive force testing device.
Background
The new energy automobile industry is rapidly developed, the industry chain gradually extends towards refinement, the core power element in the new energy automobile is the new energy motor, and with the continuous extension and development of the industry chain, the requirements on the quality and performance of new energy motors are gradually increasing, the new energy motors are not satisfied to complete machine detection, and more enterprises choose to buy finished rotors from downstream industrial chain enterprises for assembly to achieve the purpose of rapidly producing motor products, therefore, more and more enterprises choose to carry out factory inspection on the assembled rotor, and due to the pursuit of the quality of the new energy motor and parts thereof, the detection of the rotor of the new energy motor has been not limited to only detecting the magnetic field strength and the magnetic flux of the rotor, the detection of the characteristics of the motor rotor in the running process becomes an important detection trend, and the detection of the back electromotive force is an important detection index reflecting the quality of the rotor.
The conventional counter electromotive force testing device is complex in structure and poor in adaptability, and is difficult to be commonly used for stators or rotors with different sizes.
Therefore, further improvement is needed for the existing motor back electromotive force testing device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a motor back electromotive force testing device which is suitable for testing rotors and stators with different sizes.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a motor back electromotive force testing arrangement, includes the base, its characterized in that: also comprises
The first bracket is arranged on one side of the base;
the stator fixing piece is transversely detachably arranged on the first bracket and used for fixing a stator of the motor to be tested;
the second bracket is movably arranged on the other side of the base and can slide left and right relative to the base;
the rotor fixing piece is detachably arranged on the second support and can slide left and right relative to the base along with the second support, and the rotor fixing piece is used for fixing a rotor of the motor to be tested;
and the driving mechanism is arranged on the second bracket, is connected with the rotor fixing piece and is used for driving the rotor fixing piece to rotate.
The driving mechanism is provided in various manners, preferably, the driving mechanism includes a motor, a bearing disposed on the second support, and a rotating shaft disposed in the bearing, one end of the rotating shaft is connected to an output shaft of the motor, and the other end of the rotating shaft is connected to the rotor fixing member.
There are various connection methods of the rotating shaft and the output shaft of the motor, and preferably, the rotating shaft and the output shaft of the motor are connected by a coupling.
The sliding mechanism is provided with a plurality of types, preferably, the base is provided with the sliding mechanism, the sliding mechanism comprises a lead screw transversely arranged on the base and a nut sleeved on the lead screw, and the second support is arranged on the nut.
Preferably, the rotor holder is a three-jaw chuck. The three-jaw chuck can meet the fixation of the motor rotors with different diameters to be tested, and if the diameter of the motor rotor to be tested is too large, the large three-jaw chuck can be replaced, so that the rotor with the large diameter is clamped, and the universality is improved; when the three-jaw chuck is used for clamping, the three jaws are linked and clamped simultaneously, and the self-centering function is achieved; when the rotors with different diameters are replaced, the center position of the rotor of the motor to be tested is unchanged after clamping, the rotor of the motor to be tested and the stator of the motor to be tested are more beneficial to being positioned on the same axis, and the testing accuracy is improved.
In order to be beneficial to fixing the stator of the motor to be measured, the stator fixing piece is preferably a sleeve.
In order to facilitate stable rotation of the rotor to be tested, preferably, the first support is provided with an elastic rotation thimble which is abutted against the end face of the rotor of the motor to be tested.
Preferably, the sleeve and the stator of the motor to be tested are positioned through the seam allowance, and an annular cover plate for limiting the axial direction of the stator of the motor to be tested is arranged at the port of the sleeve. The motor to be tested is fixed in the sleeve through the annular cover plate and the seam allowance, and the axial movement of the motor to be tested in the sleeve is limited.
In order to facilitate detachable arrangement of the sleeve, preferably, the first support is provided with a sleeve seat, and the sleeve is detachably arranged on the sleeve seat.
Compared with the prior art, the utility model has the advantages that: the rotor fixing piece is detachably arranged on the second bracket, and different rotor fixing pieces can be replaced aiming at the rotors of the motors to be tested with different diameters; the stator mounting can be dismantled with first support and set up, and the stator mounting that can change different according to the stator of the motor that awaits measuring of different external diameters satisfies the test of different external diameter stators, consequently, the technical scheme of this application can be applicable to not unidimensional rotor and stator test.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention (before testing);
FIG. 3 is a cross-sectional view of an embodiment of the utility model (under test).
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
Referring to fig. 1 to 3, a preferred embodiment of a counter electromotive force testing device of a motor of the present invention includes a base 1, a first bracket 2, a stator fixing member 21, a second bracket 3, a rotor fixing member 5, and a driving mechanism.
The first support 2 is arranged on one side of the base 1, and a sleeve seat 24 and an elastic rotary thimble 22 abutted to the end face of the rotor of the motor to be tested are arranged on the first support 2.
The stator fixing member 21 is transversely detachably disposed on the first bracket 2, and is used for fixing a stator of the motor to be tested. In this embodiment, the stator fixing member 21 is a sleeve, and the sleeve is detachably disposed on the sleeve seat 24. The sleeve and the stator of the motor to be tested are positioned through the spigot, and the port of the sleeve is provided with an annular cover plate 23 which is used for limiting the axial direction of the stator of the motor to be tested.
The second support 3 activity sets up the opposite side at base 1 and can be relative end 1 horizontal slip, and second support 3 realizes horizontal slip through slide mechanism in this embodiment.
The sliding mechanism is arranged on the base 1, the sliding mechanism comprises a lead screw 71 transversely arranged on the base 1 and a nut 72 sleeved on the lead screw 71, and the second bracket 3 is arranged on the nut 72. The screw 71 is rotated to move the nut 72 left and right. In other embodiments, the sliding mechanism may be a slide-cylinder arrangement.
The rotor fixing piece 5 is detachably arranged on the second support 3, can slide left and right relative to the base 1 along with the second support 3 and is used for fixing a rotor of the motor to be tested; the rotor holder 5 is a three-jaw chuck in this embodiment.
The driving mechanism is arranged on the second bracket 3, is connected with the three-jaw chuck and is used for driving the three-jaw chuck to rotate. The driving mechanism comprises a motor 6, a bearing 8 arranged on the second support 3 and a rotating shaft 4 arranged in the bearing 8, one end of the rotating shaft 4 is connected with an output shaft of the motor 6 through a coupler 61, and the other end of the rotating shaft 4 is positioned with the three-jaw chuck through a spigot.
The working principle is as follows: the three-jaw chuck clamps one end of a rotor 9 of a motor to be tested, the stator 10 of the motor to be tested and a sleeve are fixed in the sleeve through a spigot in a positioning mode, an annular cover plate 23 is covered on a port 21 of the sleeve, a sliding mechanism is started, the second support 3 drives the rotor 9 of the motor to be tested to move, the other end of the rotor 9 of the motor to be tested is inserted into the stator 10 of the motor to be tested and is abutted against an elastic rotary thimble 22, a motor 6 is started to perform a counter electromotive force testing device, after testing is finished, the sliding mechanism is started, and the rotor 9 of the motor to be tested is separated from the stator 10 of the motor to be tested. When testing rotors with different diameters, only the three-jaw chuck needs to be loosened and the rotor needs to be replaced again, and the structure does not need to be changed. If the diameter of the test rotor is too large, the large three-jaw chuck can be replaced, and when the stator with different outer diameters is tested, only the corresponding sleeve needs to be replaced.
Claims (9)
1. The utility model provides a motor back electromotive force testing arrangement, includes base (1), its characterized in that: also comprises
The first bracket (2) is arranged on one side of the base (1);
the stator fixing piece (21) is transversely detachably arranged on the first bracket (2) and is used for fixing a stator of the motor to be detected;
the second bracket (3) is movably arranged on the other side of the base (1) and can slide left and right relative to the base (1);
the rotor fixing piece (5) is detachably arranged on the second support (3), can slide left and right relative to the base (1) along with the second support (3), and is used for fixing a rotor of the motor to be measured;
and the driving mechanism is arranged on the second bracket (3), is connected with the rotor fixing piece (5) and is used for driving the rotor fixing piece (5) to rotate.
2. A motor back electromotive force testing device according to claim 1, characterized in that: the driving mechanism comprises a motor (6), a bearing (8) arranged on the second support (3) and a rotating shaft (4) arranged in the bearing (8), one end of the rotating shaft (4) is connected with an output shaft of the motor (6), and the other end of the rotating shaft (4) is connected with a rotor fixing piece (5).
3. A motor back electromotive force testing device according to claim 2, characterized in that: the rotating shaft (4) is connected with an output shaft of the motor (6) through a coupling (61).
4. A motor back electromotive force testing device according to claim 1, characterized in that: the base (1) is provided with a sliding mechanism, the sliding mechanism comprises a lead screw (71) transversely arranged on the base (1) and a nut (72) sleeved on the lead screw (71), and the second support (3) is arranged on the nut (72).
5. A motor back electromotive force testing device according to claim 1, characterized in that: the rotor fixing piece (5) is a three-jaw chuck.
6. A motor back electromotive force testing device according to claim 1, characterized in that: the stator fixing piece (21) is a sleeve.
7. A motor back electromotive force testing device according to claim 6, characterized in that: and an elastic rotary thimble (22) which is abutted against the end face of the rotor of the motor to be tested is arranged on the first support (2).
8. A motor back electromotive force testing device according to claim 6, characterized in that: the sleeve is positioned with the stator of the motor to be tested through the spigot, and the port of the sleeve is provided with an annular cover plate (23) for limiting the axial direction of the stator of the motor to be tested.
9. A motor back electromotive force testing device according to claim 6, characterized in that: the first support (2) is provided with a sleeve seat (24), and the sleeve is detachably arranged on the sleeve seat (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120765096.6U CN215813212U (en) | 2021-04-14 | 2021-04-14 | Motor back electromotive force testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120765096.6U CN215813212U (en) | 2021-04-14 | 2021-04-14 | Motor back electromotive force testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215813212U true CN215813212U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120765096.6U Active CN215813212U (en) | 2021-04-14 | 2021-04-14 | Motor back electromotive force testing arrangement |
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| CN (1) | CN215813212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117805612A (en) * | 2024-01-08 | 2024-04-02 | 上海馨遥电机有限公司 | Integrated motor testing equipment and using method |
-
2021
- 2021-04-14 CN CN202120765096.6U patent/CN215813212U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117805612A (en) * | 2024-01-08 | 2024-04-02 | 上海馨遥电机有限公司 | Integrated motor testing equipment and using method |
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