A motor rotor rotation driving device suitable for rotors with different diameters

Abstract

The present invention discloses a motor rotor rotation drive device suitable for rotors of different diameters, comprising: a base; a driving belt assembly, which comprises a driving wheel, a driven wheel and a belt, the driving wheel and the driven wheel are symmetrically arranged on both sides of the base, and the belt is wound around the driving wheel and the driven wheel; a rotor contact assembly, which comprises two contact units arranged symmetrically facing each other, the contact unit comprises a mounting plate and a guide wheel group, the mounting plate is slidably connected to the base, and the belt is wound around the guide wheel group; a screw drive assembly, which comprises a driving motor, a first screw and a second screw, the driving motor is arranged on the back of the base, the first screw is fixedly mounted on the output end of the driving motor, the second screw is fixedly mounted on the end of the first screw, and the thread rotation directions of the first screw and the second screw are opposite. Compared with the prior art, the present invention solves the problem that the existing rotation drive device can only test a single diameter rotor during rotor testing.

Description

Technical Field

[0001] The invention relates to the technical field of motor rotor assembly, and in particular to a motor rotor rotation driving device suitable for rotors with different diameters. Background Art

[0002] In order to ensure high standards of noise and performance, the permanent magnet synchronous motor needs to detect the magnetizing properties of the motor's rotor. In the specific detection process, it is necessary to use a belt to drive the rotor to rotate. For example, Chinese Patent 202310898985.3 discloses a surface magnetic test device and test method for the rotor of a permanent magnet synchronous motor, including a measuring platform, a guide rail, a slider, a rotor bracket, an equipment frame, a rotor rotation drive assembly, a servo motor, a data acquisition sensor, a control and measurement mechanism, and a host computer. According to the rotor type, the distance between the two rotor brackets is adjusted, and the two ends of the rotor to be tested are placed on the two rotor brackets respectively; start the test, the servo motor drives the rubber belt to rotate, and the rubber belt drives the rotor to rotate. When the rotor stabilizes at a speed of 900-1100rpm, the high-speed AD acquisition card starts to collect the output voltage of the linear Hall sensor. When the data collected by the host computer is greater than the data of one rotation of the rotor, the servo motor decelerates and stops, and the host computer outputs the test results based on the collected data.

[0003] Existing drive devices for testing motor rotors can usually only test rotors with a single diameter. If there are motor rotors with different diameters that need to be tested, multiple devices need to be used accordingly, resulting in high testing costs. Summary of the invention

[0004] The purpose of the present invention is to provide a motor rotor rotation driving device suitable for rotors with different diameters, so as to solve the problem that the existing rotation driving device can only test rotors with a single diameter during rotor testing.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a motor rotor rotation drive device suitable for rotors of different diameters, comprising:

[0006] Pedestal;

[0007] A driving belt assembly includes a driving wheel, a driven wheel and a belt, wherein the driving wheel and the driven wheel are symmetrically arranged on both sides of the base, and the belt is wound around the driving wheel and the driven wheel;

[0008] The rotor contact assembly includes two contact units arranged symmetrically facing each other, the contact unit includes a mounting plate and a guide wheel group, the mounting plate is slidably connected to the base, and the belt passes around the guide wheel group;

[0009] A screw drive assembly includes a drive motor, a first screw and a second screw. The drive motor is arranged on the back of the base. The first screw is fixedly installed on the output end of the drive motor. The second screw is fixedly installed on the end of the first screw. The thread rotation directions of the first screw and the second screw are opposite. A first movable seat is arranged on the first screw. The first movable seat passes through a first waist-shaped hole on the base and is connected to a contact unit. A second movable seat is arranged on the second screw. The second movable seat passes through a second waist-shaped hole on the base and is connected to another contact unit.

[0010] As a further description of the above technical solution:

[0011] The guide wheel group includes a first guide wheel and a second guide wheel arranged in a straight line. The belt passes around the first guide wheel and the second guide wheel. An arc-shaped notch is arranged on the mounting plate between the first guide wheel and the second guide wheel.

[0012] As a further description of the above technical solution:

[0013] A belt tensioning assembly is also provided on the base, the driven wheel is rotatably mounted on the slide, the slide is slidably connected to the base, and the belt tensioning assembly is used to drive the slide to slide horizontally toward or away from the driving wheel.

[0014] As a further description of the above technical solution:

[0015] The belt tensioning assembly comprises a fixing plate and an adjusting bolt. The fixing plate is fixedly mounted on the base. The adjusting bolt is threadedly connected to the fixing plate. The end of the adjusting bolt contacts the slide seat.

[0016] As a further description of the above technical solution:

[0017] The cross section of the slide is in a "T" shape. Symmetrically arranged baffles are provided on both sides of the slide. A pressure plate is provided on the top of the baffle, and the pressure plate extends to the step surface on the side of the slide.

[0018] As a further description of the above technical solution:

[0019] The pressure plate is fixed on the top of the baffle by bolts.

[0020] As a further description of the above technical solution:

[0021] Two parallel slide rails are arranged on the base, and the contact unit is slidably connected to the slide rails.

[0022] As a further description of the above technical solution:

[0023] The driving wheel is fixedly installed at the output end of the rotating motor.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] 1. In the present invention, when it is necessary to drive the motor rotor to rotate, the motor rotor is arranged between the two contact units of the rotor contact assembly, the rotating shaft of the motor rotor is rotatably installed on the support seat, the contact unit is driven by the screw drive assembly, and the two contact units move synchronously toward each other or synchronously move away from each other, so that the belt wound on the contact unit is in close contact with the surface of the motor rotor, thereby realizing the rotation of the motor rotor driven by the belt, and the belt can change the rotation direction through the driving wheel to drive the motor rotor forward and reverse.

[0026] 2. In the present invention, when the driving motor in the screw drive assembly drives the first screw and the second screw to rotate synchronously, since the thread rotation direction of the first screw is opposite to that of the second screw, the first movable seat on the first screw moves away from the driving motor as the first screw rotates, while the second movable seat moves toward the driving motor as the second screw rotates, thereby realizing the opposite movement of the two contact units. On the basis of flexibly adjusting the spacing between the contact units, it can adapt to motor rotors of different diameters.

[0027] 3. In the present invention, the motor rotor is driven by a belt between the first guide wheel and the second guide wheel. The setting of the arc-shaped notch can adapt to motor rotors of different diameters on the one hand, and limit the deformation limit of the belt on the other hand to prevent safety hazards caused by belt breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 The diagram is a schematic diagram of the main view of the structure of a motor rotor rotation drive device suitable for rotors of different diameters.

[0030] Figure 2 A three-dimensional diagram of a motor rotor rotation drive device suitable for rotors of different diameters Figure 1 .

[0031] Figure 3 A three-dimensional diagram of a motor rotor rotation drive device suitable for rotors of different diameters Figure 2 .

[0032] Figure 4 A three-dimensional diagram of a motor rotor rotation drive device suitable for rotors of different diameters Figure 3 .

[0033] Legend:

[0034] 1. Base; 11. First waist-shaped hole; 12. Pressure plate; 13. Slide rail; 2. Drive belt assembly; 21. Driving wheel; 211. Rotating motor; 22. Driven wheel; 23. Belt; 24. Slide seat; 3. Rotor contact assembly; 31. Contact unit; 311. Mounting plate; 3111. Arc notch; 312. First guide wheel; 313. Second guide wheel; 4. Screw drive assembly; 41. Drive motor; 42. First screw; 421. First moving seat; 43. Second screw; 5. Belt tensioning assembly; 51. Fixing plate; 52. Adjusting bolt. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example 1

[0041] See also Figure 1-4 The present invention provides a technical solution: a motor rotor rotation driving device suitable for rotors of different diameters, comprising:

[0042] Base 1;

[0043] The driving belt assembly 2 includes a driving wheel 21, a driven wheel 22 and a belt 23. The driving wheel 21 and the driven wheel 22 are symmetrically arranged on both sides of the base 1. The belt 23 is wound around the driving wheel 21 and the driven wheel 22. The driving wheel 21 is fixedly installed at the output end of the rotating motor 211 to realize the driving wheel 21 driving the belt 23 to rotate;

[0044] The rotor contact assembly 3 includes two contact units 31 arranged symmetrically facing each other, the contact unit 31 includes a mounting plate 311 and a guide wheel group, the mounting plate 311 is slidably connected to the base 1, and the belt 23 passes around the guide wheel group;

[0045] The screw drive assembly 4 includes a drive motor 41, a first screw 42 and a second screw 43. The drive motor 41 is arranged on the back of the base 1, the first screw 42 is fixedly installed at the output end of the drive motor 41, and the second screw 43 is fixedly installed at the end of the first screw 42. The thread rotation directions of the first screw 42 and the second screw 43 are opposite. A first movable seat 421 is arranged on the first screw 42, and the first movable seat 421 passes through the first waist-shaped hole 11 on the base 1 and is connected to a contact unit 31. A second movable seat is arranged on the second screw 43, and the second movable seat passes through the second waist-shaped hole on the base 1 and is connected to another contact unit 31.

[0046] The guide wheel assembly includes a first guide wheel 312 and a second guide wheel 313 arranged in a straight line. The belt 23 passes around the first guide wheel 312 and the second guide wheel 313. An arc-shaped notch 3111 is provided on the mounting plate 311 between the first guide wheel 312 and the second guide wheel 313. The motor rotor is driven by the belt 23 between the first guide wheel 312 and the second guide wheel 313. The setting of the arc-shaped notch 3111 can adapt to motor rotors of different diameters on the one hand, and limit the deformation limit of the belt 23 on the other hand, so as to prevent the belt 23 from breaking and causing safety hazards.

[0047] The base 1 is also provided with a belt tensioning assembly 5, the driven wheel 22 is rotatably mounted on the slide 24, the slide 24 is slidably connected to the base 1, and the belt tensioning assembly 5 is used to drive the slide 24 to slide horizontally toward or away from the driving wheel 21. The belt tensioning assembly 5 can adjust the spacing between the driving wheel 21 and the driven wheel 22, thereby tensioning the belt 23 to ensure the rotation driving effect on the motor rotor.

[0048] The belt tensioning assembly 5 includes a fixing plate 51 and an adjusting bolt 52. The fixing plate 51 is fixedly mounted on the base 1. The adjusting bolt 52 is threadedly connected to the fixing plate 51. The end of the adjusting bolt 52 contacts the slide 24. The slide 24 can be squeezed by turning the adjusting bolt 52 to adjust the position of the slide 24 and the driven wheel 22 thereon, thereby achieving tensioning.

[0049] The cross section of the slide 24 is "T" shaped, and symmetrically arranged baffles are provided on both sides of the slide 24. A pressure plate 12 is provided on the top of the baffle, and the pressure plate 12 extends to the step surface of the side of the slide 24. The baffle cooperates with the pressure plate 12 to limit the sliding of the slide 24 and effectively control the precision of the tensioning effect adjustment.

[0050] The pressing plate 12 is fixedly mounted on the top of the baffle plate by means of bolts, so that the pressing plate 12 can be detachably mounted and the sliding seat 24 can be easily disassembled.

[0051] Two parallel slide rails 13 are provided on the base 1 , and the contact unit 31 is slidably connected to the slide rails 13 , so that the contact unit 31 slides smoothly.

[0052] Working principle: When the motor rotor needs to be driven to rotate, the motor rotor is arranged between the two contact units 31 of the rotor contact assembly 3, and the rotating shaft of the motor rotor is rotatably mounted on the support seat (not shown in the figure). The contact unit 31 is driven by the screw drive assembly 4, and the two contact units 31 move synchronously toward each other or move synchronously away from each other, so that the belt 23 wound on the contact unit 31 is in close contact with the surface of the motor rotor, thereby realizing the rotation of the motor rotor driven by the belt 23, and the belt 23 can change the rotation direction through the driving wheel 21 to realize the forward and reverse rotation of the motor rotor. Specifically, when the driving motor 41 in the screw drive assembly 4 drives the first screw 42 and the second screw 43 to rotate synchronously, since the thread rotation direction of the first screw 42 is opposite to that of the second screw 43, the first movable seat 421 on the first screw 42 moves away from the driving motor 41 as the first screw 42 rotates, and the second movable seat moves toward the driving motor 41 as the second screw 43 rotates, thereby realizing the opposite movement of the two contact units 31. Based on the flexible adjustment of the spacing between the contact units 31 , it is possible to adapt to motor rotors with different diameters.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A motor rotor rotation drive device suitable for rotors of different diameters, characterized in that: include: Pedestal; A driving belt assembly, comprising a driving wheel, a driven wheel and a belt, wherein the driving wheel and the driven wheel are symmetrically arranged on both sides of the base, and the belt is wound around the driving wheel and the driven wheel; A rotor contact assembly, comprising two contact units arranged symmetrically facing each other, the contact units comprising a mounting plate and a guide wheel group, the mounting plate being slidably connected to the base, and the belt passing around the guide wheel group; A screw drive assembly, comprising a drive motor, a first screw and a second screw, wherein the drive motor is arranged on the back of the base, the first screw is fixedly mounted on the output end of the drive motor, the second screw is fixedly mounted on the end of the first screw, the first screw and the second screw have opposite thread directions, a first movable seat is arranged on the first screw, the first movable seat passes through a first waist-shaped hole on the base and is connected to one of the contact units, and a second movable seat is arranged on the second screw, the second movable seat passes through a second waist-shaped hole on the base and is connected to another of the contact units; The guide wheel group includes a first guide wheel and a second guide wheel arranged in a straight line, the belt passes around the first guide wheel and the second guide wheel, and an arc-shaped notch is provided on the mounting plate between the first guide wheel and the second guide wheel; The base is also provided with a belt tensioning assembly, the driven wheel is rotatably mounted on the slide, the slide is slidably connected to the base, and the belt tensioning assembly is used to drive the slide to slide horizontally toward or away from the driving wheel; The belt tensioning assembly comprises a fixing plate and an adjusting bolt, wherein the fixing plate is fixedly mounted on the base, the adjusting bolt is threadedly connected to the fixing plate, and an end of the adjusting bolt contacts the slide seat; The base is provided with two parallel slide rails, and the contact unit is slidably connected to the slide rails; The driving wheel is fixedly mounted on the output end of the rotating motor.

2. The motor rotor rotation driving device applicable to rotors of different diameters according to claim 1, characterized in that: The cross section of the slide seat is "T"-shaped, and symmetrically arranged baffles are provided on both sides of the slide seat. A pressure plate is provided on the top of the baffle plate, and the pressure plate extends to the step surface on the side of the slide seat.

3. The motor rotor rotation driving device applicable to rotors of different diameters according to claim 2, characterized in that: The pressure plate is fixedly mounted on the top of the baffle by bolts.

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