Device for testing counter electromotive force of motor

Abstract

The utility model relates to a device used for motor back electromotive force testing, comprising a workbench and an adjusting assembly installed on the workbench, a driving motor is fixedly installed on the surface of the workbench, a coupling is fixedly installed at the output end of the driving motor, a fixing plate is arranged outside the output end of the driving motor, and the fixing plate is fixed on the workbench. The bottom of the fixing plate is fixedly provided with a supporting rod, the supporting rod is fixedly installed on the working table, the adjusting assembly comprises a lifting plate, a supporting plate and a rubber block, the lifting plate is movably installed on the table top of the working table, the supporting plate is fixedly installed above the lifting plate, the rubber block is fixedly installed on the plate surface of the supporting plate, and the rubber block is fixedly installed on the supporting plate. The lifting plate is installed on the side, away from the driving motor, of the fixing plate, the supporting rod penetrates through the lifting plate, the lifting plate is driven to be adjusted up and down through the screw, the testing device adapts to motors of different sizes, and the adaptability of the testing device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor test technical field especially relates to a device for motor counter electromotive force test. BACKGROUND

[0002] The counter electromotive force test of the existing motor usually adopts the oscilloscope test, and the test procedure operation is complex, in the case of needing to test different rotating speeds, frequent manual debugging is needed, and the output voltage value cannot be automatically recorded, so the work efficiency is low, and it is not suitable for mass production. SUMMARY

[0003] The purpose of the present application is to provide a device for motor counter electromotive force test to solve the problems raised in the background art.

[0004] To achieve the above purpose, the present application provides the following technical scheme:

[0005] A device for motor counter electromotive force test, comprising a workbench and an adjusting assembly installed on the workbench, a driving motor is fixedly installed on the tabletop of the workbench, a coupling is fixedly installed on the output end of the driving motor, a fixed plate is provided outside the output end of the driving motor, a support rod is fixedly installed on the bottom of the fixed plate, the support rod is fixedly installed on the workbench, the adjusting assembly comprises a lifting plate, a support plate and a rubber block, the lifting plate is movably installed on the tabletop of the workbench, the support plate is fixedly installed above the lifting plate, the rubber block is fixedly installed on the plate surface of the support plate, the lifting plate is installed on the side of the fixed plate away from the driving motor, and the support rod passes through the lifting plate.

[0006] Preferably, the bottom of the lifting plate is fixedly installed with a screw rod, the screw rod is vertically arranged with the lifting plate, a circular hole is formed in the tabletop of the workbench, a threaded tube is installed in the circular hole through a bearing, a worm wheel is fixedly installed on the outer wall of the threaded tube, a screw hole is formed in the inner wall, and the threaded tube is screwedly installed outside the screw rod. A plurality of lifting rods are fixedly installed on the bottom of the lifting plate, and the bottom ends of the lifting rods pass through the tabletop of the workbench. A rotating wheel is rotatably installed at one end of the tabletop of the workbench, a connecting rod is fixedly installed at the center of the rotating wheel, the connecting rod is installed on the tabletop of the workbench through a bearing, a worm is fixedly installed at the end of the connecting rod, and the worm is engaged with the clamping teeth of the worm wheel.

[0007] The utility model discloses the beneficial effects are: through being provided with adjusting assembly, through screw rod drive lifting plate up and down adjustment, adapt to the motor of different volume size, improve the adaptability of test device. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is the whole structure schematic diagram of the utility model;

[0009] Figure 2 This is a cross-sectional view of the installation structure of the support plate and the lifting plate in this utility model;

[0010] Figure 3 In this utility model Figure 2 A magnified schematic diagram of the structure of region A;

[0011] Figure 4 This is a schematic diagram of the connection structure between the tested motor and the fixing plate in this utility model.

[0012] In the diagram: 1. Workbench; 2. Drive motor; 3. Fixing plate; 4. Support plate; 5. Glue block; 6. Lifting rod; 7. Rotary wheel; 8. Connecting rod; 9. Screw; 10. Support rod; 11. Lifting plate; 12. Worm gear; 13. Worm wheel. Detailed Implementation

[0013] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0014] like Figures 1-4 The device shown includes a workbench 1 and an adjustment assembly mounted on the workbench 1. A drive motor 2 is fixedly mounted on the workbench 1. A coupling is fixedly mounted on the output end of the drive motor 2. A fixing plate 3 is provided outside the output end of the drive motor 2. A support rod 10 is fixedly mounted on the bottom of the fixing plate 3. The support rod 10 is fixedly mounted on the workbench 1. The adjustment assembly includes a lifting plate 11, a support plate 4, and a rubber block 5. The lifting plate 11 is movably mounted on the workbench 1. The support plate 4 is fixedly mounted above the lifting plate 11. The rubber block 5 is fixedly mounted on the surface of the support plate 4. The lifting plate 11 is mounted on the side of the fixing plate 3 away from the drive motor 2. The support rod 10 passes through the lifting plate 11.

[0015] A screw 9 is fixedly installed at the bottom of the lifting plate 11, and the screw 9 is perpendicular to the lifting plate 11. A circular hole is opened on the table surface of the workbench 1, and a threaded tube is installed in the circular hole through a bearing. A worm gear 13 is fixedly installed on the outer wall of the threaded tube, and the inner wall is threaded. The threaded tube is threaded onto the outside of the screw 9. Multiple lifting rods 6 are fixedly installed at the bottom of the lifting plate 11, and the bottom end of the lifting rods 6 passes through the table surface of the workbench 1. A rotating wheel 7 is rotatably installed at one end of the table surface of the workbench 1. A connecting rod 8 is fixedly installed at the center of the rotating wheel 7. The connecting rod 8 is installed on the table surface of the workbench 1 through a bearing. A worm gear 12 is fixedly installed at the end of the connecting rod 8, and the worm gear 12 meshes with the teeth of the worm gear 13.

[0016] Example: The motor under test is fixedly mounted on the fixed plate 3. The output end of the motor under test passes through the fixed plate 3 and is connected to the coupling of the drive motor 2. The drive motor 2 drives the output end of the motor under test to rotate, and the output end of the motor under test drives the internal rotor of the motor to rotate. The rotation of the rotor generates back electromotive force. The speed of the drive motor 2 can be adjusted by the control terminal to facilitate the detection of back electromotive force of the motor under test at different speeds.

[0017] Rotating the wheel 7 at the end of the workbench 1 causes the connecting rod 8 to rotate, which in turn causes the worm gear 12 to rotate. The worm gear 12 then causes the worm wheel 13 to rotate, which in turn causes the threaded tube at the center to rotate. The rotation of the threaded tube causes the screw 9 to lift and lower. Depending on the size of the motor being tested, the operator can rotate the wheel 7 so that the screw 9 can lift the lifting plate 11 to complete the lifting and lowering action. The lifting rod 6 serves as a guide and stabilizes the operation of the lifting plate 11. The rubber block 5 on the top surface of the support plate 4 supports the motor being tested, providing a buffer and protecting the outer wall of the motor.

[0018] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0019] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An apparatus for testing the back electromotive force of an electric motor, comprising a worktable (1) and an adjustment assembly mounted on the worktable (1), characterized in that: A drive motor (2) is fixedly installed on the table surface of the workbench (1). A coupling is fixedly installed at the output end of the drive motor (2). A fixing plate (3) is provided outside the output end of the drive motor (2). A support rod (10) is fixedly installed at the bottom of the fixing plate (3). The support rod (10) is fixedly installed on the workbench (1). The adjustment assembly includes a lifting plate (11), a support plate (4), and a rubber block (5). The lifting plate (11) is movably installed on the table surface of the workbench (1). The support plate (4) is fixedly installed above the lifting plate (11). The rubber block (5) is fixedly installed on the plate surface of the support plate (4). The lifting plate (11) is installed on the side of the fixing plate (3) away from the drive motor (2). The support rod (10) passes through the lifting plate (11).

2. The apparatus for testing the back electromotive force of a motor according to claim 1, characterized in that: A screw (9) is fixedly installed at the bottom of the lifting plate (11). The screw (9) is perpendicular to the lifting plate (11). A round hole is opened on the table surface of the workbench (1). A threaded tube is installed in the round hole through a bearing. A worm gear (13) is fixedly installed on the outer wall of the threaded tube. The inner wall is threaded. The threaded tube is threaded on the outside of the screw (9).

3. The apparatus for testing the back electromotive force of a motor according to claim 2, characterized in that: A rotating wheel (7) is rotatably mounted on one end of the workbench (1). A connecting rod (8) is fixedly mounted at the center of the rotating wheel (7). The connecting rod (8) is mounted on the workbench (1) via a bearing. A worm (12) is fixedly mounted at the end of the connecting rod (8). The worm (12) meshes with the teeth of the worm wheel (13).

4. The apparatus for testing the back electromotive force of a motor according to claim 1, characterized in that: Multiple lifting rods (6) are fixedly installed at the bottom of the lifting plate (11), and the bottom end of the lifting rods (6) passes through the table surface of the workbench (1).

Images