CN210400830U

CN210400830U - New forms of energy electric motor rotor overspeed testing arrangement

Info

Publication number: CN210400830U
Application number: CN201921714690.1U
Authority: CN
Inventors: 朱发东; 玉国成
Original assignee: Jiangxi Kingchun Electronic Control Technology Co ltd
Current assignee: Jiangxi Kingchun Electronic Control Technology Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-04-24
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a new forms of energy motor rotor overspeed testing arrangement, including base and fixed plate, be provided with spring damper between base and the fixed plate, spring damper periphery winding has the spring, fixed plate upper surface has fixing base, first backup pad and second backup pad through the bolt fastening, the welding has the protection casing on the fixing base, install the motor in the protection casing, high speed bearing has all been inlayed on first backup pad and the second backup pad, two sets of the key-type connection has rotor positioning frock between the high speed bearing, two sets of the rotor positioning frock is connected with motor rotor both ends key-type connection respectively, motor rotor is pasted on the reflection of light paper, the fixed plate top is fixed with rotational speed sensor through the support, the motor rotor of model can be tested fast to this device, and the setting of spring damper and spring simultaneously can absorb the vibration energy that the device produced in operation, the accuracy of the test effect is ensured.

Description

New forms of energy electric motor rotor overspeed testing arrangement

Technical Field

The utility model relates to an electric motor rotor technical field that tests the speed specifically is a new forms of energy electric motor rotor overspeed testing arrangement.

Background

In recent years, electric vehicles are rapidly developed, and permanent magnet synchronous motors gradually become mainstream configurations of driving motors of electric vehicles due to the advantages of simple structure, reliable operation, wide speed regulation range, high conversion efficiency and the like. At present, the electric automobile is in fierce competition, and the automobile motor is operated with the advantages of energy conservation, low noise and zero emission. In practical applications, automobile manufacturers prefer small, high-speed motors. A rotational speed requirement of 14000rpm or higher is required. Therefore, the mechanical performance of the motor rotor is greatly tested.

Considering the influence to the motor when the rotor runs at a high speed, in actual conditions, a convenient, effective and quick overspeed testing device for the motor rotor does not exist, different fixing equipment needs to be replaced when the existing device tests the motor rotors of different models, and the vibration in the running process of the device has great influence on the testing result.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a new forms of energy electric motor rotor hypervelocity testing arrangement can test the electric motor rotor of different models fast, and the vibration energy that can the absorbing device production in operation guarantees the test effect accuracy in the setting of spring damper and spring simultaneously to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a new energy motor rotor overspeed testing device comprises a base and a fixed plate, wherein a spring shock absorber is arranged between the base and the fixed plate, a spring is wound on the periphery of the spring shock absorber, a fixed seat, a first supporting plate and a second supporting plate are fixed on the upper surface of the fixed plate through bolts, the protective cover is welded on the fixed seat, the motor is installed in the protective cover, the high-speed bearings are embedded on the first supporting plate and the second supporting plate, the rotor positioning tools are connected between the two groups of high-speed bearings in a key mode, the two groups of rotor positioning tools are respectively connected with two ends of a motor rotor in a key mode, the motor rotor is adhered with reflective paper, a rotating speed sensor is fixed above the fixed plate through a bracket, the rotor positioning tool is characterized in that an accelerating mechanism is welded on one side of the fixed seat and connected with the tail end of an output shaft of the motor, and the accelerating mechanism is connected with one end of the rotor positioning tool through a diaphragm coupler.

Preferably, four groups of support legs are welded to the lower surface of the base and are respectively arranged at four corners of the base.

Preferably, the four groups of support legs are all in a frustum shape, and rubber sleeves are glued to the bottoms of the four groups of support legs.

Preferably, the spring shock absorbers are provided with four groups, and the four groups of spring shock absorbers are respectively arranged at four corners of the fixing plate.

Preferably, the protective cover is provided with heat dissipation holes.

Preferably, the motor is a servo motor.

Compared with the prior art, the beneficial effects of the utility model are that:

the bearing installation and the fixing of the adaptable different shaft diameters of first backup pad and the second backup pad that set up around, the effect of this structure has satisfied the not demand of equidimension electric motor rotor test overspeed performance, can test the electric motor rotor of different models fast, and the setting of spring damper and spring simultaneously can the vibration energy of absorbing device production when moving, guarantees the test effect accuracy.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic side view of the first support plate of the present invention;

fig. 3 is a schematic view of the top view structure of the revolution speed sensor of the present invention.

In the figure: 1. a base; 2. a fixing plate; 3. a spring damper; 4. a spring; 5. a bolt; 6. a fixed seat; 7. a first support plate; 8. a second support plate; 9. a protective cover; 10. a motor; 11. a high speed bearing; 12. a rotor positioning tool; 13. a motor rotor; 14. an acceleration mechanism; 15. a diaphragm coupling; 16. reflective paper; 17. a rotational speed sensor; 18. a rubber sleeve; 19. heat dissipation holes; 20. and (3) a support leg.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a new energy motor rotor overspeed testing device comprises a base 1 and a fixing plate 2, wherein in order to enable the base 1 to be far away from the ground, supporting legs 20 are welded at four corners of the lower surface of the base 1, four groups of supporting legs 20 are in frustum shapes, rubber sleeves 18 are glued at the bottoms of the four groups of supporting legs 20, and the supporting stability of the supporting legs 20 is improved;

four groups of spring shock absorbers 3 are arranged between the base 1 and the fixed plate 2, springs 4 are wound on the peripheries of the four groups of spring shock absorbers 3, and the spring shock absorbers 3 and the springs 4 are arranged for absorbing vibration energy generated when the device runs so as to ensure normal test;

a fixed seat 6, a first supporting plate 7 and a second supporting plate 8 are fixed on the upper surface of the fixed plate 2 through bolts 5;

the protective cover 9 is welded on the fixed seat 6, the motor 10 is installed in the protective cover 9, the motor 10 is a servo motor, in order to facilitate heat dissipation of the motor 10, heat dissipation holes 19 are formed in the protective cover 9, high-speed bearings 11 are embedded in the first supporting plate 7 and the second supporting plate 8, rotor positioning tools 12 are connected between the two groups of high-speed bearings 11 in a key mode, the two groups of rotor positioning tools 12 are connected with two end keys of a motor rotor 13 respectively, reflective paper 16 is pasted on the motor rotor 13, the larger the difference between the color of the reflective paper 16 and the bottom color of the motor rotor 13 is, the better the effect is, a rotating speed sensor 17 is fixed above the fixed plate 2 through a support, the rotating speed sensor 17 is a JX5031A rotating speed monitor, a detection head of the rotating speed sensor 17 and the reflective paper 16 are located on the same vertical plane, the motor rotor 13 drives the reflective paper 16 to rotate, the accelerating mechanism 14 is connected with the tail end of an output shaft of the motor 10, and the accelerating mechanism 14 is connected with one end of the rotor positioning tool 12 through a diaphragm coupling 15.

The working principle is as follows: step 1, mounting a motor rotor 13 on a rotor positioning tool 12; step 2, connecting a spline; step 3, starting the motor 10 and the rotating speed sensor 17 in sequence, wherein the motor 10 drives the accelerating mechanism 14 to operate until the motor rotor 13 reaches 18000rpm or higher; and 4, after the test, shutting down the motor 10, disconnecting the connected spline and finishing the test.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a new forms of energy electric motor rotor overspeed testing arrangement, includes base (1) and fixed plate (2), its characterized in that: the spring shock absorber is characterized in that a spring shock absorber (3) is arranged between the base (1) and the fixing plate (2), a spring (4) is wound on the periphery of the spring shock absorber (3), a fixing seat (6), a first supporting plate (7) and a second supporting plate (8) are fixed on the upper surface of the fixing plate (2) through bolts (5), a protective cover (9) is welded on the fixing seat (6), a motor (10) is installed in the protective cover (9), high-speed bearings (11) are embedded on the first supporting plate (7) and the second supporting plate (8), a rotor positioning tool (12) is connected between the two groups of high-speed bearings (11) in a key mode, the two groups of rotor positioning tools (12) are connected with two ends of a motor rotor (13) in a key mode respectively, reflective paper (16) are pasted on the motor rotor (13), and a rotating speed sensor (17) is fixed above the fixing, one side welding has accelerating mechanism (14) on fixing base (6), accelerating mechanism (14) and the output shaft end-to-end connection of motor (10), accelerating mechanism (14) are connected with rotor location frock (12) one end through diaphragm coupling (15).

2. The overspeed testing device for the rotor of the new-energy motor as claimed in claim 1, wherein: four groups of supporting legs (20) are welded to the lower surface of the base (1), and the four groups of supporting legs (20) are arranged at four corners of the base (1) respectively.

3. The overspeed testing device for the rotor of the new-energy motor as claimed in claim 2, wherein: the four groups of support legs (20) are all in a frustum shape, and rubber sleeves (18) are glued at the bottoms of the four groups of support legs (20).

4. The overspeed testing device for the rotor of the new-energy motor as claimed in claim 1, wherein: the four groups of spring shock absorbers (3) are arranged, and the four groups of spring shock absorbers (3) are respectively arranged at four corners of the fixing plate (2).

5. The overspeed testing device for the rotor of the new-energy motor as claimed in claim 1, wherein: the protective cover (9) is provided with heat dissipation holes (19).

6. The overspeed testing device for the rotor of the new-energy motor as claimed in claim 1, wherein: the motor (10) is a servo motor.