Permanent magnet synchronous motor vibration energy recovery assembly
By designing the vibration energy recovery component of the permanent magnet synchronous motor with a multi-layer shock absorbing mechanism, the problem of the lack of effective shock absorbing devices in the existing permanent magnet motors is solved, and better shock absorption effect and rotation angle accuracy are achieved.
Patent Information
- Application Number
- CN202510490741.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2025-06-20
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing permanent magnet motors lack effective shock absorption devices, which leads to deflection of the rotation angle of the motor and inaccurate rotation angle at the output end.
A permanent magnet synchronous motor vibration energy recovery assembly is designed, including a protective box and a multi-layer shock absorber mechanism. The external shock absorber mechanism realizes buffering of longitudinal vibration through a structure combination of fixed seats, motors, bidirectional screws, sliding sleeves, brackets, sliders, extension rods, limit cylinders, and buffer springs; the internal shock absorber mechanism performs secondary shock absorbing through cover plates, limit grooves, rubber plates, limit rings, limit springs and other structures.
It effectively reduces the output vibration of the permanent magnet motor, improves the accuracy of the rotation angle, and ensures the stable operation of the motor.
Smart Images
Figure CN120185286A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of permanent magnet motors, and particularly to a vibration energy recovery component for a permanent magnet synchronous motor. Background Art
[0002] The structure of a permanent magnet synchronous motor is similar to that of a DC motor, so it can have the characteristics of a brushless DC motor such as simple structure, reliable operation, large power density, and good speed regulation performance. At the same time, because the driving method adopted by the permanent magnet synchronous motor is different from that of the DC motor, in terms of noise and control accuracy, the permanent magnet synchronous motor is superior.
[0003] A sensorless motor is easily affected by vibration, and the vibration will cause the rotation angle of the motor output end to be inaccurate. Therefore, it is necessary to reduce vibration. However, most of the existing permanent magnet motors do not have a good shock absorption device, which leads to the deflection of the rotation angle of the motor. Therefore, a vibration energy recovery component for a permanent magnet synchronous motor is proposed to solve the above-mentioned problems. Summary of the Invention
[0004] (I) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the present invention provides a vibration energy recovery component for a permanent magnet synchronous motor, which has the advantage of good shock absorption effect, and solves the problems that a sensorless motor is easily affected by vibration, the vibration will cause the rotation angle of the motor output end to be inaccurate, so it is necessary to reduce vibration, but most of the existing permanent magnet motors do not have a good shock absorption device, which leads to the deflection of the rotation angle of the motor.
[0006] Technical Solutions
[0007] To achieve the above purpose of good shock absorption effect and small vibration at the output end, the present invention provides the following technical solutions: A vibration energy recovery component for a permanent magnet synchronous motor, including a protective box, a placement table is movably installed inside the protective box, a permanent magnet motor body is arranged on the top of the placement table, a second shock absorption mechanism is arranged inside the protective box, and a second shock absorption mechanism is arranged inside the permanent magnet motor body;
[0008] The first shock absorption mechanism includes a fixed seat, a motor, a bidirectional screw, a sliding sleeve, a bracket, a slider, an extension rod, a limiting cylinder, a first buffer spring, a connecting rod, a limiting plate, a second buffer spring limiting rod, and a spring damper. A fixed seat is fixedly installed inside the protection box. A motor is installed on the right side of the fixed seat. The output shaft of the motor is connected to a bidirectional screw. A sliding sleeve is sleeved outside the bidirectional screw. A bracket is installed at the bottom of the placement table. A slider is sleeved outside the bracket. The bottom of the slider is hinged to an extension rod. The top of the sliding sleeve is hinged to a limiting cylinder. A first buffer spring is installed inside the limiting cylinder. A connecting rod is movably installed inside the limiting cylinder. A limiting plate is installed inside the protection box. A second buffer spring is fixedly installed inside the limiting plate. A limiting rod is movably installed inside the limiting plate. A spring damper is hinged to the bottom of the placement table.
[0009] Preferably, a second shock absorption mechanism is provided inside the permanent magnet motor body. The second shock absorption mechanism includes a cover plate, a limiting groove, a fixing ring, a first rubber plate, a limiting ring, a limiting spring, and a bearing. A cover plate is fixedly installed on the front side of the permanent magnet motor body. A limiting groove is opened inside the cover plate. A fixing ring is installed inside the limiting groove. A first rubber plate is installed inside the limiting groove. A limiting ring is installed inside the limiting groove. A limiting spring is installed inside the limiting ring. A bearing is installed inside the limiting ring.
[0010] Preferably, a second rubber plate is installed on the top of the placement table. Two baffles are installed on the top of the fixed seat. The motor is fixedly connected to the right side of the right baffle.
[0011] Preferably, the bidirectional screw penetrates through the right baffle and is rotatably connected to the right side of the left baffle. A sliding opening is opened inside the fixed seat. Extension rods are fixedly installed at the bottoms of the two sliding sleeves.
[0012] Preferably, the bottoms of the two extension rods both extend into the sliding opening. The tops of the two sliding sleeves are respectively hinged to the bottoms of the two limiting cylinders. The bottom of the first buffer spring is fixedly connected to the inner bottom wall of the limiting cylinder.
[0013] Preferably, the first buffer spring is connected to the side of the connecting rod away from the extension rod. The tops of the two extension rods are respectively hinged to the bottoms of the two sliders.
[0014] Preferably, the opposite sides of the two extension rods are respectively hinged to the opposite sides of the two limiting plates. The bottom of the second buffer spring is connected to the inner bottom wall of the limiting plate.
[0015] Preferably, one side of the limiting rod away from the placing table is connected to the top of the second buffer spring.
[0016] Preferably, one sides of the six limiting springs away from the bearing are all connected to the inner wall of the limiting ring, the first rubber plate is sleeved outside the limiting ring, and the first rubber plate is located between the fixed ring and the limiting ring.
[0017] Beneficial effects
[0018] Compared with the prior art, the present invention provides a vibration energy recovery component for a permanent magnet synchronous motor, having the following beneficial effects:
[0019] 1. For the vibration energy recovery component of the permanent magnet synchronous motor, the protection box protects the permanent magnet motor body, reducing the offset of the output shaft caused by external collisions. By setting the first shock absorption mechanism, the structures of the shock absorption mechanism cooperate with each other, so as to achieve the effect of buffering the longitudinal vibration of the permanent magnet motor body.
[0020] 2. For the vibration energy recovery component of the permanent magnet synchronous motor, through the cooperation of the structures of the second shock absorption mechanism, the effect of secondary buffering and shock absorption on the inside of the permanent magnet motor body is achieved, so as to ensure better shock absorption effect and more accurate rotation angle of the output shaft of the permanent magnet motor body. Brief description of the drawings
[0021] Figure 1 is the front three-dimensional schematic diagram of the present invention;
[0022] Figure 2 is the partial three-dimensional schematic diagram of the present invention;
[0023] Figure 3 is the sectional schematic diagram of the present invention;
[0024] Figure 4 is the schematic diagram of the second shock absorption mechanism of the present invention;
[0025] Figure 5 is the Figure 3 enlarged schematic diagram at A in the present invention;
[0026] Figure 6 is the Figure 3 enlarged schematic diagram at B in the present invention.
[0027] In the figure: 1 protective box, 2 placement platform, 3 permanent magnet motor body, 4 first shock absorption mechanism, 401 fixed seat, 402 motor, 403 bidirectional screw, 404 sliding sleeve, 405 bracket, 406 slider, 407 extension rod, 408 limiting cylinder, 409 first buffer spring, 410 connecting rod, 411 limiting plate, 412 second buffer spring, 413 limiting rod, 414 spring damper, 5 second shock absorption mechanism, 501 cover plate, 502 limiting groove, 503 fixed ring, 504 first rubber plate, 505 limiting ring, 506 limiting spring, 507 bearing, 6 second rubber plate. Specific implementation mode
[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0029] Please refer to Figures 1-6 , a vibration energy recovery component of a permanent magnet synchronous motor, including a protective box 1, a placement platform 2 is movably installed inside the protective box 1, a permanent magnet motor body 3 is arranged on the top of the placement platform 2, a second shock absorption mechanism 4 is arranged inside the protective box 1, and a second shock absorption mechanism 5 is arranged inside the permanent magnet motor body 3;
[0030] The first shock absorption mechanism 4 includes a fixed seat 401, a motor 402, a bidirectional screw 403, a sliding sleeve 404, a bracket 405, a slider 406, an extension rod 407, a limiting cylinder 408, a first buffer spring 409, a connecting rod 410, a limiting plate 411, a second buffer spring 412, a limiting rod 413 and a spring damper 414. A fixed seat 401 is fixedly installed inside the protective box 1, a motor 402 is installed on the right side of the fixed seat 401, the output shaft of the motor 402 is connected to a bidirectional screw 403, a sliding sleeve 404 is sleeved outside the bidirectional screw 403, a bracket 405 is installed at the bottom of the placement platform 2, a slider 406 is sleeved outside the bracket 405, the bottom of the slider 406 is hinged to an extension rod 407, the top of the sliding sleeve 404 is hinged to a limiting cylinder 408, a first buffer spring 409 is installed inside the limiting cylinder 408, a connecting rod 410 is movably installed inside the limiting cylinder 408, a limiting plate 411 is installed inside the protective box 1, a second buffer spring 412 is fixedly installed inside the limiting plate 411, a limiting rod 413 is movably installed inside the limiting plate 411, and a spring damper 414 is hinged to the bottom of the placement platform 2.
[0031] Specifically, by setting the first shock absorption mechanism 4, the structures of the shock absorption mechanism 4 cooperate with each other, so as to achieve the effect of buffering the longitudinal vibration of the permanent magnet motor body 3.
[0032] In Figure 1 and Figure 2 inside the permanent magnet motor body 3, a second shock absorption mechanism 5 is provided. The second shock absorption mechanism 5 includes a cover plate 501, a limit groove 502, a fixing ring 503, a first rubber plate 504, a limit ring 505, a limit spring 506 and a bearing 507. The cover plate 501 is fixedly installed on the front side of the permanent magnet motor body 3. The limit groove 502 is opened inside the cover plate 501. The fixing ring 503 is installed inside the limit groove 502. The first rubber plate 504 is installed inside the limit groove 502. The limit ring 505 is installed inside the limit groove 502. The limit spring 506 is installed inside the limit ring 505. The bearing 507 is installed inside the limit ring 505.
[0033] Specifically, through the cooperation of the various structures of the second shock absorption mechanism 5, the effect of secondary buffering and shock absorption on the inside of the permanent magnet motor body 3 is achieved, so as to ensure better shock absorption effect and more accurate rotation angle of the output shaft of the permanent magnet motor body 3.
[0034] In Figure 1 and Figure 3 on the top of the placing table 2, a second rubber plate 6 is installed. On the top of the fixing seat 401, two baffles are installed. The motor 402 is fixedly connected to the right side of the right baffle.
[0035] Specifically, the motor 402 is fixed by setting the fixing seat 401. When the controller drives the motor 402 to start, the bidirectional screw 403 can be driven to rotate, so as to pull the two limit cylinders 408 to move in opposite or relative directions. In the initial state, the length of the connecting rod 410 extending into the limit cylinder 408 can be adjusted, that is, the elastic pre-tightening force of the first buffer spring 409 can be adaptively adjusted according to the actual shock absorption needs.
[0036] In Figure 2 and Figure 3 the bidirectional screw 403 penetrates through the right baffle and is rotatably connected to the right side of the left baffle. A sliding opening is opened inside the fixing seat 401. Extension rods are fixedly installed at the bottoms of the two sliding sleeves 404.
[0037] In Figure 2 and Figure 4 the bottoms of the two extension rods both extend into the sliding opening. The tops of the two sliding sleeves 404 are respectively hinged to the bottoms of the two limit cylinders 408. The bottom of the first buffer spring 409 is fixedly connected to the inner bottom wall of the limit cylinder 408.
[0038] In Figure 2 and Figure 4Among them, the first buffer spring 409 is connected to the side of the connecting rod 410 away from the extension rod 407, and the tops of the two extension rods 407 are respectively hinged to the bottoms of the two sliders 406.
[0039] Specifically, by setting the bracket 405 to support the bottom of the placement table 2, and by setting the slider 406, when the vibration of the permanent magnet motor body 3 is large, the slider 406 will slide on the bracket 405, pulling the placement table 2 to move up and down to adjust the center of gravity, so as to achieve the buffering effect.
[0040] In Figure 3 and Figure 4 Among them, the opposite sides of the two extension rods 407 are respectively hinged to the opposite sides of the two limit plates 411, and the bottom of the second buffer spring 412 is connected to the inner bottom wall of the limit plate 411.
[0041] In Figure 3 and Figure 4 Among them, the side of the limit rod 413 away from the placement table 2 is connected to the top of the second buffer spring 412.
[0042] Specifically, by setting the limit plate 411 to fix the second buffer spring 412, when the slider 406 moves, the limit rod 413 will simultaneously squeeze the second limit spring 412, so as to further achieve the effect of buffering and shock absorption.
[0043] In Figure 4 and Figure 5 Among them, the sides of the six limit springs 506 away from the bearing 507 are all connected to the inner wall of the limit ring 505, the first rubber plate 504 is sleeved outside the limit ring 505, and the first rubber plate 504 is located between the fixed ring 503 and the limit ring 505.
[0044] Specifically, the output shaft of the permanent magnet motor body 3 passes through the limit groove 502 and extends to the outside of the cover plate 501 to be connected to the device, so as to achieve the effect of driving the device to rotate. By setting the limit ring 505 and the fixed ring 503, it is convenient to press the first rubber plate 504 tightly. At the same time, the first rubber plate 504 achieves the preliminary shock absorption effect, and the limit spring 506 achieves the effect of further shock absorption to ensure the stability of the output shaft.
[0045] In summary, for the vibration energy recovery component of the permanent magnet synchronous motor, the motor 402 is fixed by setting the fixed seat 401. When the controller drives the motor 402 to start, the bidirectional screw 403 can be driven to rotate, thereby pulling the two limit cylinders 408 to move in opposite or relative directions. In the initial state, the length of the connecting rod 410 extending into the limit cylinder 408 can be adjusted, that is, the elastic pre-tightening force of the first buffer spring 409 can be adaptively adjusted according to the actual shock absorption needs. By setting the bracket 405 to support the bottom of the placement table 2, and by setting the slider 406, when the vibration of the permanent magnet motor body 3 is large, the slider 406 will slide on the bracket 405, pulling the placement table 2 to move up and down to adjust the center of gravity, so as to achieve the buffering effect. By setting the limit plate 411 to fix the second buffer spring 412, when the slider 406 moves, the limit rod 413 will simultaneously squeeze the second limit spring 412, thereby further achieving the effect of buffering and shock absorption. By setting the damper 414, the vibration can be quickly stopped and the placement table 2 can be kept stable.
[0046] Moreover, during use, the permanent magnet motor body 3 is stably connected to the placement table 2 through fixing screws, and then the device to be driven is stably fixed to the permanent magnet motor body 3. When the vibration is large, first, the limit spring 506 will initially buffer the vibration in the bearing 506, and at the same time, the first rubber plate 504 will further buffer the vibration in the cover plate 501. When the vibration of the permanent magnet motor body 3 is large, the slider 406 will slide on the bracket 405, pulling the placement table 2 to move up and down to adjust the center of gravity. At the same time, the limit rod 413 will simultaneously squeeze the second limit spring 412, thereby further achieving the effect of buffering and shock absorption. Finally, the damper 414 can quickly stop the vibration and keep the placement table 2 stable.
[0047] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0048] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A permanent magnet synchronous motor vibration energy recovery assembly, comprising a protection box (1), characterized in that: A placement platform (2) is movably installed inside the protection box (1), a permanent magnet motor body (3) is arranged on the top of the placement platform (2), a second shock absorbing mechanism (4) is arranged inside the protection box (1), and a second shock absorbing mechanism (5) is arranged inside the permanent magnet motor body (3); The first shock absorbing mechanism (4) comprises a fixed seat (401), a motor (402), a bidirectional screw (403), a sleeve (404), a bracket (405), a slider (406), an extension rod (407), a limiting cylinder (408), a first buffer spring (409), a connecting rod (410), a limiting plate (411), a second buffer spring (412), a limiting rod (413) and a spring damper (414); a fixed seat (401) is fixedly installed inside the protection box (1); a motor (402) is installed on the right side of the fixed seat (401); an output shaft of the motor (402) is connected to a bidirectional screw (403); a sleeve (404) is sleeved on the outside of the bidirectional screw (403); and the placement A bracket (405) is installed at the bottom of the platform (2), a slider (406) is sleeved on the outside of the bracket (405), an extension rod (407) is hinged on the bottom of the slider (406), a limiting cylinder (408) is hinged on the top of the sliding sleeve (404), a first buffer spring (409) is installed inside the limiting cylinder (408), a connecting rod (410) is movably installed inside the limiting cylinder (408), a limiting plate (411) is installed inside the protection box (1), a second buffer spring (412) is fixedly installed inside the limiting plate (411), a limiting rod (413) is movably installed inside the limiting plate (411), and a spring damper (414) is hinged on the bottom of the placement platform (2).
2. A permanent magnet synchronous motor vibration energy recovery component according to claim 1, characterized in that: A second damping mechanism (5) is arranged inside the permanent magnet motor body (3), and the second damping mechanism (5) comprises a cover plate (501), a limiting groove (502), a fixing ring (503), a first rubber plate (504), a limiting ring (505), a limiting spring (506) and a bearing (507). The cover plate (501) is fixedly installed on the front side of the permanent magnet motor body (3), a limiting groove (502) is provided inside the cover plate (501), a fixing ring (503) is installed inside the limiting groove (502), a first rubber plate (504) is installed inside the limiting groove (502), a limiting ring (505) is installed inside the limiting groove (502), a limiting spring (506) is installed inside the limiting ring (505), and a bearing (507) is installed inside the limiting ring (505).
3. A permanent magnet synchronous motor vibration energy recovery component according to claim 1, characterized in that: A second rubber plate (6) is installed on the top of the placement table (2), two baffles are installed on the top of the fixing seat (401), and the motor (402) is fixedly connected to the right side of the baffle on the right side.
4. A permanent magnet synchronous motor vibration energy recovery component according to claim 3, characterized in that: The bidirectional screw (403) passes through the right baffle and is rotatably connected to the right side of the left baffle. A sliding opening is provided inside the fixing seat (401). Extension rods are fixedly installed at the bottoms of the two sliding sleeves (404).
5. The permanent magnet synchronous motor vibration energy recovery component according to claim 1, characterized in that: The bottoms of the two extension rods extend to the inside of the sliding opening, the tops of the two sliding sleeves (404) are respectively hinged to the bottoms of the two limiting cylinders (408), and the bottom of the first buffer spring (409) is fixedly connected to the inner bottom wall of the limiting cylinder (408).
6. A permanent magnet synchronous motor vibration energy recovery component according to claim 1, characterized in that: The first buffer spring (409) is connected to one side of the connecting rod (410) away from the extension rod (407), and the tops of the two extension rods (407) are hinged to the bottoms of the two sliding blocks (406) respectively.
7. The permanent magnet synchronous motor vibration energy recovery component according to claim 1, characterized in that: The opposite sides of the two extension rods (407) are respectively hinged to the opposite sides of the two limit plates (411), and the bottom of the second buffer spring (412) is connected to the inner bottom wall of the limit plate (411).
8. The permanent magnet synchronous motor vibration energy recovery component according to claim 1, characterized in that: The side of the limiting rod (413) away from the placing platform (2) is connected to the top of the second buffer spring (412).
9. The permanent magnet synchronous motor vibration energy recovery component according to claim 2, characterized in that: The six limit springs (506) are connected to the inner wall of the limit ring (505) on one side away from the bearing (507), the first rubber plate (504) is sleeved on the outside of the limit ring (505), and the first rubber plate (504) is located between the fixing ring (503) and the limit ring (505).