Testing device for dynamic balance of motor rotor

Abstract

The utility model discloses a testing device for dynamic balance of a motor rotor, which relates to the technical field of dynamic balance testing devices and comprises a testing table, a mounting plate is fixedly mounted on one side of the surface of the testing table, an adjusting motor is mounted on the surface of the mounting plate and connected with a transmission device, and a fixing plate is fixedly mounted at the top of the testing table. An adjusting groove is formed in the side, away from the fixed plate, of the top of the testing table, the testing table is movably connected with a movable plate through the adjusting groove, a lifting mechanism is fixedly connected to the surface of the side, close to the fixed plate, of the movable plate, and a driving motor is installed at the top end of the lifting mechanism; the top of the fixed plate and the top of the movable plate are movably provided with adjustable supports, the tops of the adjustable supports are fixedly provided with supporting frames, and the problem that a traditional motor rotor dynamic balance testing device needs to adopt different testing methods and equipment to carry out dynamic balance testing on motor rotors of different specifications is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dynamic balance testing devices, in particular to a testing device for the dynamic balance of a motor rotor. Background Art

[0002] During high-speed operation, the motor rotor often generates centrifugal force and vibration due to internal factors such as uneven mass distribution. This not only causes unstable motor operation but may also cause damage to the equipment. Therefore, it is particularly important to perform dynamic balancing tests on the motor rotor.

[0003] However, traditional dynamic balancing test methods are mainly applicable to motor rotors of specific types and specifications. Different types of motors or rotors of different specifications may require different test methods and equipment. This makes traditional dynamic balancing test methods have certain limitations in practical applications. Utility Model Content

[0004] In order to solve the above technical problems, a motor rotor dynamic balancing test device is provided. The device is equipped with an adjustable bracket and a transmission device, which aims to solve the problem that the traditional motor rotor dynamic balancing test device proposed in the above background technology is mainly suitable for motor rotors of specific types and specifications. For different types of motors or rotors of different specifications, different testing methods and equipment may be required for dynamic balancing tests.

[0005] In order to achieve the above purpose, the technical solution adopted by this utility model is:

[0006] A test device for the dynamic balance of a motor rotor, characterized in that it comprises a test bench, a mounting plate fixedly mounted on one side of the surface of the test bench, an adjusting motor mounted on the surface of the mounting plate, the adjusting motor being connected to a transmission device, a fixing plate fixedly mounted on the top of the test bench, an adjusting slot being provided on the side of the top of the test bench away from the fixing plate, the test bench movably connected to a movable plate through the adjusting slot, a lifting mechanism fixedly connected to the surface of the movable plate close to the fixing plate, a driving motor being mounted on the top of the lifting mechanism, adjustable brackets being movably mounted on the tops of the fixed plate and the movable plate, a support frame fixedly mounted on the top of the adjustable bracket, a supporting shaft movably mounted inside the support frame, a bearing movably connected to the outer side of the supporting shaft, and a rotor body being mounted on the surface of the bearing.

[0007] Preferably, the transmission device includes an adjusting motor, a threaded rod, an adjusting seat, a connecting block and a fixed seat. The adjusting motor is fixedly mounted on one side of the surface of the mounting plate. The threaded rod is connected to the adjusting motor through a hole provided inside the mounting plate. The adjusting seat is movably mounted on the surface of the threaded rod. The tail end of the threaded rod is movably connected to the fixed seat. A connecting block is fixedly mounted on the top of the adjusting seat. The adjusting seat is fixedly connected to the movable plate and the base through the connecting block.

[0008] Preferably, the lifting mechanism includes a base, lifting rods and a motor frame, a plurality of lifting rods are fixedly mounted on the top of the base, and a motor frame is fixedly mounted on the top of the lifting rods.

[0009] Preferably, the drive motor is fixedly mounted on the top of the motor frame via a foot, the drive end of the drive motor is fixedly connected to a transmission wheel, a transmission belt is movably mounted on the outer side of the transmission wheel, and the inner side of the transmission belt is movably connected to the rotor body.

[0010] Compared with the prior art, the utility model provides a test device for the dynamic balancing of a motor rotor, which has the following beneficial effects: the test device for the dynamic balancing of the motor rotor is equipped with an adjustable bracket, a movable plate and a transmission device. When performing a dynamic balancing test on the motor rotor, the staff first needs to determine the specifications of the rotor body. After the confirmation is completed, the adjustment motor is started, and the adjustment motor drives the threaded rod to rotate, and an adjustment seat is movably installed on the surface of the threaded rod. The adjustment seat is fixedly connected to the movable plate and the base through a connecting block. The adjustment seat drives the movable plate and the base to move back and forth due to the rotation direction of the threaded rod, thereby adjusting the distance between the movable plate and the fixed plate. At the same time, adjustable brackets are installed on the top of the movable plate and the fixed plate, which is convenient for limiting rotor bodies of different specifications. By using the adjustable bracket, the movable plate and the transmission device, it is convenient to perform dynamic balancing tests on rotor bodies of different sizes, thereby avoiding the problem that traditional motor rotor dynamic balancing test devices require different testing methods and equipment to perform dynamic balancing tests on motor rotors of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0012] Figure 2 It is a cross-sectional view of the local structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the lifting structure of the utility model;

[0014] Figure 4 It is a schematic diagram of the three-dimensional structure of the transmission device of the present utility model.

[0015] The numbers in the figure are:

[0016] 1. Test bench; 2. Mounting plate; 3. Adjustment motor; 4. Adjustment slot; 5. Lifting mechanism; 6. Drive motor; 7. Movable plate; 8. Transmission belt; 9. Rotor body; 10. Bearing; 11. Support shaft; 12. Adjustable bracket; 13. Fixed plate; 14. Base; 15. Lifting rod; 16. Motor frame; 17. Transmission wheel; 18. Connecting block; 19. Adjustment seat; 20. Threaded rod; 21. Fixed seat; 22. Foot; 23. Support frame; 24. Transmission device. DETAILED DESCRIPTION

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0018] Reference Figure 1-4 As shown, a test device for dynamic balancing of a motor rotor is characterized in that it includes a test bench 1, a mounting plate 2 is fixedly mounted on one side of the surface of the test bench 1, an adjusting motor 3 is mounted on the surface of the mounting plate 2, the adjusting motor 3 is connected to a transmission device 24, a fixed plate 13 is fixedly mounted on the top of the test bench 1, an adjusting slot 4 is provided on the side of the top of the test bench 1 away from the fixed plate 13, the test bench 1 is movably connected to a movable plate 7 through the adjusting slot 4, a lifting mechanism 5 is fixedly connected to the surface of the movable plate 7 close to the fixed plate 13, a driving motor 6 is mounted on the top of the lifting mechanism 5, an adjustable bracket 12 is movably mounted on the top of the fixed plate 13 and the movable plate 7, by using the adjustable bracket 12, rotor bodies 9 of different specifications can be limited, a support frame 23 is fixedly mounted on the top of the adjustable bracket 12, a supporting shaft 11 is movably mounted inside the support frame 23, a bearing 10 is movably connected to the outside of the supporting shaft 11, and the rotor body 9 is mounted on the surface of the bearing 10.

[0019] Among them, the transmission device 24 includes an adjusting motor 3, a threaded rod 20, an adjusting seat 19, a connecting block 18 and a fixed seat 21. The adjusting motor 3 is fixedly mounted on one side of the surface of the mounting plate 2. The threaded rod 20 is connected to the adjusting motor 3 through a hole provided inside the mounting plate 2. The adjusting seat 19 is movably mounted on the surface of the threaded rod 20. The tail end of the threaded rod 20 is movably connected to the fixed seat 21. The connecting block 18 is fixedly mounted on the top of the adjusting seat 19. The adjusting seat 19 is fixedly connected to the movable plate 7 and the base 14 through the connecting block 18. The distance between the movable plate 7 and the fixed plate 13 can be controlled by the forward and backward movement of the transmission device 24, which is convenient for installing rotor bodies 9 of different lengths.

[0020] Furthermore, the lifting mechanism 5 includes a base 14, a lifting rod 15 and a motor frame 16. Several lifting rods 15 are fixedly installed on the top of the base 14, and a motor frame 16 is fixedly installed on the top of the lifting rod 15. By adjusting the lifting mechanism 5, the lifting rod 15 drives the drive motor 6 on the motor frame 16 to move up and down, thereby adjusting the tightness of the transmission belt 8, so that the transmission belt 8 can fix the rotor body 9 according to the test requirements.

[0021] Specifically, the drive motor 6 is fixedly mounted on the top of the motor frame 16 through a foot 22. There are four feet 22, which are mounted on the top of the motor frame 16 through nuts to fix the drive motor 6 installed on the surface of the motor frame 16 to ensure its stability. The driving end of the drive motor 6 is fixedly connected to the transmission wheel 17, and the outer side of the transmission wheel 17 is movably mounted with a transmission belt 8, and the inner side of the transmission belt 8 is movably connected to the rotor body 9.

[0022] The working principle and use process of the present utility model are as follows: when performing a dynamic balancing test on the motor rotor, the staff must first determine the specifications of the rotor body 9. After confirmation, the adjustment motor 3 is started, and the adjustment motor 3 drives the threaded rod 20 to rotate. An adjustment seat 19 is movably installed on the surface of the threaded rod 20. The adjustment seat 19 is fixedly connected to the movable plate 7 and the base 14 through the connecting block 18. The adjustment seat 19 drives the movable plate 7 and the base 14 to move back and forth due to the rotation direction of the threaded rod 20, thereby adjusting the distance between the movable plate 7 and the fixed plate 13, and at the same time adjusting the adjustable bracket 12 installed on the top of the movable plate 7 and the fixed plate 13. The rotor bodies 9 of the same specifications are limited. After the adjustment is completed, the staff will install the bearings 10 at both ends of the rotor body 9 and place them in the center of the supporting shaft 11 on the top of the movable plate 7 and the fixed plate 13, and then install the transmission belt 8 on the outside of the rotor body 9 and sleeve it on the outside of the transmission wheel 17. When the transmission belt 8, the transmission wheel 17 and the rotor body 9 are too loose or too tight, the staff will start the lifting rod 15, and the lifting rod 15 will drive the drive motor 6 on the motor frame 16 to move up and down, thereby adjusting the tightness of the transmission belt 8, so that the transmission belt 8 can fix the rotor body 9 according to the test requirements, thereby performing a dynamic balance test on the electronic rotor.

[0023] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A test device for dynamic balance of a motor rotor, characterized in that: The invention comprises a test bench (1), wherein a mounting plate (2) is fixedly mounted on one side of the surface of the test bench (1), an adjusting motor (3) is mounted on the surface of the mounting plate (2), and the adjusting motor (3) is connected to a transmission device (24). A fixing plate (13) is fixedly mounted on the top of the test bench (1), and an adjusting slot (4) is provided on the side of the top of the test bench (1) away from the fixing plate (13). The test bench (1) is movably connected to a movable plate (7) through the adjusting slot (4), and the movable plate (7) is close to the fixing plate ( 13) A lifting mechanism (5) is fixedly connected to the surface of one side, a driving motor (6) is installed on the top of the lifting mechanism (5), an adjustable bracket (12) is movably installed on the top of the fixed plate (13) and the movable plate (7), a support frame (23) is fixedly installed on the top of the adjustable bracket (12), a supporting shaft (11) is movably installed inside the support frame (23), a bearing (10) is movably connected to the outside of the supporting shaft (11), and a rotor body (9) is installed on the surface of the bearing (10).

2. A motor rotor dynamic balance testing device according to claim 1, characterized in that: The transmission device (24) includes an adjusting motor (3), a threaded rod (20), an adjusting seat (19), a connecting block (18) and a fixing seat (21); the adjusting motor (3) is fixedly mounted on one side of the surface of the mounting plate (2); the threaded rod (20) is connected to the adjusting motor (3) through a hole provided inside the mounting plate (2); the adjusting seat (19) is movably mounted on the surface of the threaded rod (20); the tail end of the threaded rod (20) is movably connected to the fixing seat (21); the top of the adjusting seat (19) is fixedly mounted with a connecting block (18); the adjusting seat (19) is fixedly connected to the movable plate (7) and the base (14) through the connecting block (18).

3. The motor rotor dynamic balance testing device according to claim 1, characterized in that: The lifting mechanism (5) comprises a base (14), lifting rods (15) and a motor frame (16); a plurality of lifting rods (15) are fixedly mounted on the top of the base (14); and a motor frame (16) is fixedly mounted on the top of the lifting rods (15).

4. The motor rotor dynamic balance testing device according to claim 1, characterized in that: The drive motor (6) is fixedly mounted on the top of the motor frame (16) via a foot seat (22); the drive end of the drive motor (6) is fixedly connected to a transmission wheel (17); a transmission belt (8) is movably mounted on the outer side of the transmission wheel (17); and the inner side of the transmission belt (8) is movably connected to the rotor body (9).

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