A system for testing the magnetic distribution of a magnet

Abstract

The utility model discloses a kind of surface magnetic distribution test systems, including base and motor rotor to be tested, base has sprocket and transmission chain by vertical plate and first connecting shaft rotation, first connecting shaft one end is drivenly connected with first motor by first gear set, multiple limit seats are equipped on transmission chain, and the rotating shaft of motor rotor to be tested both ends is respectively clamped in the upper portion of two limit seats, the inner top of vertical frame of base is equipped with horizontal sliding block by lead screw, horizontal sliding block is equipped with surface magnet respectively measuring host computer and detection probe below, the utility model is equipped with transmission chain and multiple limit seats by vertical plate, first connecting shaft and sprocket on base, the rotating shaft of motor rotor to be tested both ends is respectively clamped in the recess of the upper portion of two limit seats, transmission chain is rotated and adjusted using first motor and first gear set drive, it is convenient to continuously send motor rotor to detection probe below and carry out detection processing, loading and unloading are convenient and fast, it is favorable to improve the efficiency of motor rotor surface magnetic distribution test.

Description

Technical Field

[0001] This utility model relates to the field of surface magnetic field testing technology, specifically a surface magnetic field distribution testing system. Background Technology

[0002] With the development of new energy technologies, many industries that previously relied on conventional energy sources are gradually replacing traditional energy with new energy sources, among which the development of new energy motors has been particularly rapid. New energy motors are integrations of motors, reducers, and motor controllers, and are widely used in new energy vehicles, power generation, and other fields. During the production process of new energy motors, after the motor rotor shaft, magnets, and rotor core are assembled, the magnetic induction intensity on the surface of the rotor core needs to be measured.

[0003] The prior art, patent application number 202311494649.9, describes a new energy motor rotor surface magnetic field testing device, which includes: a worktable, a pressing mechanism, a rotating mechanism, an upper positioning mechanism, a lower positioning mechanism, and a testing mechanism. The upper and lower positioning mechanisms are used to stably position the rotor, and they are vertically aligned, ensuring accurate positioning and preventing eccentric vibration of the rotor during rotation. This guarantees the accuracy of the rotor surface magnetic induction intensity test results. However, while the operation of the upper and lower electronic rotors is quick, vertically placing the electronic rotor is time-consuming and labor-intensive, and it is not convenient to continuously feed material to the bottom of the testing probe for testing. Utility Model Content

[0004] The purpose of this invention is to provide a surface magnetic distribution testing system to solve the problems in the prior art where the operation of the upper and lower electronic rotors is quick, the vertical placement of the electronic rotors is time-consuming and laborious, and it is inconvenient to continuously feed materials to the bottom of the detection probe for testing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a surface magnetic distribution testing system, comprising a base and a motor rotor to be tested. A sprocket rotates on the upper side of the base via a vertical plate and a first connecting shaft, and a transmission chain is wound around the outer sides of the two sprockets. One end of the first connecting shaft is connected to a first motor via a first gear set. Multiple limiting seats are provided on the upper side of the transmission chain, and the rotating shafts at both ends of the motor rotor to be tested are respectively engaged in the grooves on the upper part of the two limiting seats. A vertical frame is provided in the middle of the base, and a horizontal sliding block is provided at the top of the vertical frame via a lead screw. A surface magnetic distribution measuring host and a detection probe are provided below the horizontal sliding block. A lifting mechanism is also provided on the base below the detection probe.

[0006] Furthermore, the transmission chain is provided in two parallel sets, and the lower transmission chain is provided with a lateral stabilizing support.

[0007] Furthermore, the limiting seat is configured as a U-shaped seat, and multiple limiting seats are equally spaced outside the transmission chain.

[0008] Furthermore, the first gear set is a reduction gear, and the first motor is fixedly installed on the inner wall of the vertical plate.

[0009] Furthermore, the lifting mechanism includes a hydraulic cylinder mounted on a mounting base, a lifting plate on the upper side of the hydraulic cylinder, and a roller rotatably mounted on the upper side of the lifting plate via an upper support plate and a second connecting shaft. One end of the second connecting shaft of the roller is connected to a second motor via a second gear set.

[0010] Furthermore, two sets of rollers are arranged in parallel, and a rubber anti-slip layer is provided on the outer side of the rollers.

[0011] Furthermore, the upper end of the hydraulic cylinder is provided with limiting support plates on both sides, and the lower end of the lifting plate is provided with a guide rod that slides with the limiting support plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model utilizes a transmission chain and multiple limiting seats provided on the base via a vertical plate, a first connecting shaft, and a sprocket. The rotating shafts at both ends of the motor rotor to be tested are respectively engaged in the grooves on the upper part of the two limiting seats. The transmission chain is driven to rotate and adjust by the first motor and the first gear set, which facilitates the continuous feeding of the motor rotor to the area below the detection probe for testing. Moreover, multiple motor rotors to be tested are placed at the feeding end of the transmission chain and are horizontally fed out from the discharge end, making loading and unloading convenient and quick, which helps to improve the efficiency of testing the surface magnetic distribution of the motor rotor.

[0014] 2. In this utility model, a horizontal sliding block is provided at the top of the frame via a lead screw. The lower side of the horizontal sliding block is provided with a magnetic measuring host and a detection probe, so that the horizontal detection angle of the detection probe can be adjusted by driving the horizontal sliding block to move horizontally.

[0015] 3. This utility model also includes a lifting mechanism on the base under the detection probe. The lifting mechanism includes a hydraulic cylinder mounted on a mounting seat, a lifting plate on the upper side of the hydraulic cylinder, and a roller rotatably mounted on the upper side of the lifting plate via an upper support plate and a second connecting shaft. One end of the second connecting shaft of one roller is connected to a second motor via a second gear set, so that the upper support plate and roller are driven upward by the hydraulic cylinder, which facilitates the upward disengagement of the rotor of the motor under test from the limiting seat. Then, the second motor and the second gear set drive the roller to rotate and adjust, thereby enabling the rotor of the motor under test placed on the upper part of the roller to be rotated and adjusted axially, which facilitates uniform rotation detection of the rotor of the motor under test and improves the efficiency of surface magnetic distribution testing. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a first-view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the lifting mechanism of this utility model.

[0020] In the diagram: 1. Base; 2. Stand; 3. Stand plate; 4. First connecting shaft; 5. Transmission chain; 6. Limiting seat; 7. Rotor of the motor to be tested; 8. Lateral sliding block; 9. Magnetic measuring machine; 10. Lead screw; 11. Detection probe; 12. First motor; 13. Lateral stabilizing support; 14. Mounting seat; 15. Hydraulic cylinder; 16. Lifting plate; 17. Upper support plate; 18. Second connecting shaft; 19. Roller; 20. Second gear set; 21. Second motor; 22. Limiting support plate; 23. Guide rod; 24. Sprocket; 25. First gear set. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2 , Figure 3In this embodiment of the present invention, a surface magnetic distribution testing system includes a base 1 and a motor rotor 7 to be tested. A sprocket 24 rotates on the upper side of the base 1 via a vertical plate 3 and a first connecting shaft 4. A transmission chain 5 is wound around the outer sides of the two sprockets 24. One end of the first connecting shaft 4 is connected to a first motor 12 via a first gear set 25. Multiple limiting seats 6 are provided on the upper side of the transmission chain 5, and the rotating shafts at both ends of the motor rotor 7 to be tested are respectively engaged in the grooves on the upper part of the two limiting seats 6. Two sets of transmission chains 5 are arranged in parallel, and the lower transmission chain 5 is provided with a lateral stabilizing mechanism. The support 13 and the limiting seat 6 are set as U-shaped seats, and multiple limiting seats 6 are equally spaced outside the transmission chain 5. The first gear set 25 is a reduction gear, and the first motor 12 is fixedly installed on the inner wall of the vertical plate 3. The first motor 12 and the first gear set 25 drive the transmission chain 5 to rotate and adjust, which facilitates the continuous feeding of the motor rotor to the detection probe 11 for detection. Moreover, multiple motor rotors to be tested are placed at the feeding end of the transmission chain 5 and are horizontally transmitted from the discharge end, which makes loading and unloading convenient and quick, and helps to improve the efficiency of the magnetic distribution test of the motor rotor surface.

[0023] like Figure 1 and Figure 2 As shown, a support frame 2 is also provided in the middle of the base 1, and a photoelectric switch is also provided on the inner wall of the support frame 2 to facilitate the determination of whether the motor rotor is accurately at the detection station below the detection probe 11. A horizontal sliding block 8 is provided on the top of the support frame 2 through a lead screw 10. The magnetic field measuring host 9 and the detection probe 11 are respectively located on the lower side of the horizontal sliding block 8. The detection probe 11 is a Hall probe used to test the magnetic field distribution of the motor rotor under test. The test results are displayed on the display screen of the PLC control cabinet outside the support frame 2. Moreover, the horizontal sliding block 8 is driven by the lead screw 10 to adjust the horizontal movement, thereby adjusting the horizontal detection angle of the detection probe 11.

[0024] like Figure 2 and Figure 3As shown, in order to lift and rotate the motor rotor 7 under test at a constant speed, a lifting mechanism is also provided on the base 1 below the test probe 11. The lifting mechanism includes a hydraulic cylinder 15 provided through the mounting seat 14, a lifting plate 16 provided on the upper side of the hydraulic cylinder 15, and a roller 19 rotatably provided on the upper side of the lifting plate 16 through an upper support plate 17 and a second connecting shaft 18. One end of the second connecting shaft 18 of one roller 19 is connected to a second motor 21 through a second gear set 20. Two sets of rollers 19 are arranged in parallel, and a rubber anti-slip layer is provided on the outer side of the rollers 19. This allows the upper support plate 17 and rollers 19 to be moved upward by the hydraulic cylinder 15, which facilitates the removal of the motor rotor 7 under test from the limiting seat 6. Then, the second motor 21 and the second gear set 20 drive the rollers 19 to rotate and adjust, thereby enabling the axial rotation adjustment of the motor rotor 7 placed on the rollers 19. This facilitates the uniform rotation test of the motor rotor 7 under test and improves the efficiency of the surface magnetic distribution test.

[0025] like Figure 3 As shown, in order to improve the stability of the lifting plate 16 in the lifting adjustment, limit support plates 22 are provided on both sides of the upper end of the hydraulic cylinder 15, and guide rods 23 are provided at the lower end of the lifting plate 16 that slide with the limit support plates 22, which are used to guide the lifting plate 16 in the lifting adjustment, so as to improve the stability of the lifting plate 16 in the lifting adjustment.

[0026] The working principle and usage process of this utility model are as follows: In use, the rotating shafts at both ends of the motor rotor 7 to be tested are respectively engaged in the grooves on the upper part of the two limit seats 6 of the transmission chain 5. The first motor 12 and the first gear set 25 drive the transmission chain 5 to rotate and adjust, continuously sending the motor rotor to the bottom of the detection probe 11. After the photoelectric switch detects that it is in place, the transmission stops. At this time, the lifting mechanism drives the motor rotor 7 to be tested to move upward. The lead screw 10 drives the magnetic field measuring host 9 and the detection probe 11 to move for detection. After the detection is completed, the lifting mechanism drives the motor rotor 7 to be tested to move downward and place it back on the two limit seats 6. This cycle can achieve the purpose of continuous detection, and the detection efficiency is high. The loading and unloading are convenient and quick, which is conducive to improving the efficiency of the magnetic field distribution test of the motor rotor.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A surface magnetic distribution testing system, comprising a base (1) and a motor rotor (7) to be tested, characterized in that: The base (1) has a sprocket (24) rotating on the upper side via a vertical plate (3) and a first connecting shaft (4), and a transmission chain (5) is wound around the outer side of the two sprockets (24). One end of the first connecting shaft (4) is connected to a first motor (12) via a first gear set (25). The transmission chain (5) has multiple limit seats (6) on its upper side, and the rotating shafts at both ends of the motor rotor (7) to be tested are respectively engaged in the grooves on the upper part of the two limit seats (6). The base (1) has a stand (2) in the middle, and the top of the stand (2) has a horizontal sliding block (8) via a lead screw (10). The horizontal sliding block (8) has a magnetic field measuring host (9) and a detection probe (11) on its lower side. The base (1) below the detection probe (11) also has a lifting mechanism.

2. The surface magnetic distribution testing system according to claim 1, characterized in that: The transmission chain (5) is provided in two parallel sets, and the lower transmission chain (5) is provided with a transverse stable support (13).

3. The surface magnetic distribution testing system according to claim 1, characterized in that: The limiting seat (6) is configured as a U-shaped seat, and multiple limiting seats (6) are equally spaced outside the transmission chain (5).

4. The surface magnetic distribution testing system according to claim 1, characterized in that: The first gear set (25) is a reduction gear, and the first motor (12) is fixedly installed on the inner wall of the vertical plate (3).

5. The surface magnetic distribution testing system according to claim 1, characterized in that: The lifting mechanism includes a hydraulic cylinder (15) provided by a mounting base (14), a lifting plate (16) provided on the upper side of the hydraulic cylinder (15), and a roller (19) rotatably provided on the upper side of the lifting plate (16) via an upper support plate (17) and a second connecting shaft (18). One end of the second connecting shaft (18) of the roller (19) is connected to a second motor (21) via a second gear set (20).

6. The surface magnetic distribution testing system according to claim 5, characterized in that: Two sets of rollers (19) are provided in parallel, and a rubber anti-slip layer is provided on the outer side of the rollers (19).

7. The surface magnetic distribution testing system according to claim 5, characterized in that: The hydraulic cylinder (15) has limit support plates (22) on both sides of its upper end, and the lifting plate (16) has a guide rod (23) that slides with the limit support plates (22) at its lower end.

Images