Shock-resistant mechanism and motor comprising same

Abstract

The invention relates to the technical field of motor damping, in particular to an anti-seismic mechanism and a motor comprising the anti-seismic mechanism, the anti-seismic mechanism comprises a base and a motor mounted above the base, and the anti-seismic mechanism further comprises a mounting plate slidably mounted on the base; the self-adaptive damping assembly comprises an adjusting box movably mounted at the top of the mounting plate, a detection piece used for detecting the rotating speed of the motor and a sliding plate slidably mounted on the base are arranged in the adjusting box, a damping fin is fixedly mounted at the end, away from the sliding plate, of a connecting rod, a magnetic pipe is fixedly mounted on the inner wall of the base, and the damping fin is located in the magnetic pipe; a reinforcing plate is slidably mounted in the damping fin, and when the rotating speed of the motor is increased, the internal magnetic field of the magnetic tube is increased. The rotating speed of the motor is monitored in real time by arranging the detection piece at the output end of the motor, and the shock strength between the mounting plate and the base is adaptively adjusted according to different rotating speeds, so that the purpose of adaptive shock resistance is achieved, and the motor has good stability in different working environments and states.

Description

Technical Field

[0001] This invention relates to the field of motor vibration reduction technology, specifically to an anti-vibration mechanism and a motor containing the mechanism. Background Technology

[0002] As a core power component in industrial production, transportation, and other fields, the vibration of electric motors directly affects the stability and service life of equipment. Motor vibration originates from factors such as dynamic imbalance of rotating parts and electromagnetic force fluctuations, and the vibration frequency is strongly correlated with the rotational speed—changes in rotational speed can cause synchronous shifts in the fundamental frequency and harmonic frequencies of vibration, easily leading to resonance or vibration damping failure, which in turn aggravates component wear, generates noise, and may even cause equipment failure.

[0003] Existing motor vibration reduction technologies are divided into two categories: passive and active. Passive vibration reduction relies on elastic elements with fixed parameters such as springs and rubber pads, and can only be adapted to a specific speed range. When the speed deviates from the design conditions, the vibration reduction efficiency drops significantly, and the risk of resonance increases. Active vibration reduction technologies, such as harmonic current injection and magnetorheological damping adjustment, can dynamically adjust vibration reduction parameters, but they are mostly targeted at specific motor types or vibration sources, lacking versatility. Moreover, the adjustment mechanism relies on preset parameters or manual intervention, lacking the ability to dynamically respond to real-time changes in motor speed, and cannot automatically optimize the vibration reduction strategy according to speed fluctuations. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an anti-vibration mechanism and a motor containing the mechanism, which can effectively solve the problem that the vibration reduction strength of the prior art cannot be self-adjusted according to the output power of the motor.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: This invention provides an anti-seismic mechanism and a motor containing the mechanism, comprising a base and a motor mounted on the base, and further comprising: The mounting plate slides onto the base. The adaptive damping assembly includes an adjustment box movably mounted on top of a mounting plate, which contains a detection element for detecting motor speed, and a sliding plate slidably mounted on a base. A connecting rod is mounted on the sliding plate, and a damping plate is fixedly mounted on the end of the connecting rod away from the sliding plate. A magnetic tube is fixedly mounted on the inner wall of the base, and the damping plate is located in the magnetic tube. When the mounting plate vibrates up and down, the damping plate slides in the magnetic tube. A reinforcing plate is slidably mounted in the damping plate. When the motor speed increases, the internal magnetic field of the magnetic tube increases, and the reinforcing plate slides and misaligns with the damping plate.

[0006] Furthermore, a plurality of telescopic rods are connected between the inner bottom wall of the base and the bottom wall of the mounting plate, and each telescopic rod is fitted with a shock-absorbing spring.

[0007] Furthermore, the mounting plate has a sliding groove, on which an adjustment frame is slidably mounted, and the adjustment box is mounted on the adjustment frame.

[0008] Furthermore, the motor is provided with an output shaft, and a connecting shaft is rotatably inserted in the regulating box, with a coupling connecting the connecting shaft and the output shaft.

[0009] Furthermore, the detection component includes a rotating ring mounted in the adjustment box, and the connecting shaft is located on the side wall inside the rotating ring with multiple adjustment tubes evenly spaced. Each adjustment tube has a first piston disc slidably mounted therein, and a first reset rod is provided between the first piston disc and the inner wall of the adjustment tube.

[0010] Furthermore, the rotating ring and the adjusting box are rotatably connected by a sealed bearing.

[0011] Furthermore, the detection component also includes an adjustment cavity formed in the adjustment frame, in which a second piston disc is slidably installed, and a second reset rod is connected between the second piston disc and the inner wall of the second adjustment cavity. A connection hole is formed between the adjustment cavity and the adjustment box.

[0012] Furthermore, an annular groove is formed on the side wall of the damping plate, the reinforcing plate is slidably installed in the annular groove, an adjusting airbag is provided at the center of the annular groove, and a connecting pipe is connected between the adjusting airbag and the adjusting cavity.

[0013] Furthermore, the adjustment frame is provided with a magnetic adjustment groove, an adjuster is fixedly installed in the magnetic adjustment groove, an adjustment plate is slidably installed on the adjuster, a first magnet is fixedly installed on the bottom wall of the second piston disc, and a second magnet is provided on the adjustment plate that attracts the first magnet.

[0014] Furthermore, the magnetic tube is provided with an elastic rod, and the elastic rod and the damping plate are fixedly connected. A rotating plate is rotatably connected to the bottom wall of the mounting plate, and the rotating plate and the sliding plate are rotatably connected.

[0015] Furthermore, a positioning frame is fixedly installed on the mounting plate, and an anti-slip pad is provided on the inner wall of the positioning frame. A fixing frame is provided on the mounting plate, and a connecting component is provided between the fixing frame and the motor.

[0016] An electric motor employing the aforementioned anti-vibration mechanism.

[0017] The technical solution provided by this invention has the following advantages compared with the known prior art: By setting a detection device at the output end of the motor to monitor the motor speed in real time, and adaptively adjusting the anti-vibration strength between the mounting plate and the base according to different speeds, the motor achieves self-adaptive anti-vibration, thus ensuring good stability in different working environments and conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 for Figure 3 Enlarged view of the structure of part A in the middle; Figure 5 for Figure 3 Enlarged view of the structure of part B in the middle section; Figure 6 This is a schematic diagram of the internal structure of the adjustment frame; Figure 7 This is a schematic diagram of the damping plate section.

[0020] The labels in the diagram represent: 1. Base; 2. Mounting plate; 3. Adjustment frame; 4. Positioning frame; 5. Motor; 6. Output shaft; 7. Connecting shaft; 8. Coupling; 9. Telescopic rod; 10. Shock-absorbing spring; 11. Rotating plate; 12. Slide plate; 13. Magnetic tube; 14. Connecting rod; 15. Damping plate; 16. Reinforcing plate; 17. Elastic rod; 18. Adjustment box; 19. Rotating ring; 20. Adjustment tube; 21. First piston disc; 22. First reset rod; 23. Connecting hole; 24. Adjustment chamber; 25. Second piston disc; 26. Second reset rod; 27. Connecting tube; 28. Fixing frame; 29. ​​First magnet; 30. Adjuster; 31. Adjustment plate; 32. Second magnet; 33. Adjustment airbag. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] The present invention will be further described below with reference to embodiments.

[0023] Example 1: refer to Figure 1 An anti-vibration mechanism and a motor containing the mechanism are disclosed. The mechanism includes a base 1 and a motor 5 mounted on the base 1. It also includes a mounting plate 2 slidably mounted on the base 1. The mounting plate 2 has a groove on its surface, and an adjustment frame 3 is slidably mounted on the groove. An adjustment box 18 is mounted on the adjustment frame 3. Multiple telescopic rods 9 are connected between the inner bottom wall of the base 1 and the bottom wall of the mounting plate 2. Each telescopic rod 9 is fitted with a shock-absorbing spring 10. A positioning frame 4 is fixedly mounted on the mounting plate 2. The inner wall of the positioning frame 4 is provided with an anti-slip pad. A fixing frame 28 is provided on the mounting plate 2. A connecting assembly is provided between the fixing frame 28 and the motor 5. This connecting assembly can be made of bolts and nuts, or other methods, depending on the motor and the application scenario. The positioning frame 4 holds the motor 4 in place. The positioning frame 4 has an anti-slip pad and a soft padding layer inside to prevent scratches on the outside of the motor and to improve its anti-vibration strength.

[0024] refer to Figure 2 and Figure 3To further improve seismic resistance, an adaptive damping assembly is installed between the mounting plate 2 and the base 1. This assembly includes an adjustment box 18 movably mounted on the top of the mounting plate 2. The motor 5 has an output shaft 6, and a connecting shaft 7 rotatably passes through the adjustment box 18. A coupling 8 connects the connecting shaft 7 and the output shaft 6. The adjustment box 18 contains a detection element for detecting the speed of the motor 5. This detection element includes a rotating ring 19 rotatably mounted within the adjustment box 18. The rotating ring 19 and the adjustment box 18 are rotatably connected by a sealed bearing. Multiple adjusting tubes 20 are evenly spaced on the side wall inside the rotating ring 19, and each adjusting tube 20 has a sliding... The system includes a first piston disc 21, a first reset rod 22 between the inner wall of the first piston disc 21 and the adjusting tube 20, and a slide plate 12 slidably mounted on the base 1. A connecting rod 14 is mounted on the slide plate 12, and a damping plate 15 is fixedly mounted on the end of the connecting rod 14 away from the slide plate 12. A magnetic tube 13 is fixedly mounted on the inner wall of the base 1, and the damping plate 15 is located in the magnetic tube 13. An elastic rod 17 is provided in the magnetic tube 13, and the elastic rod 17 and the damping plate 15 are fixedly connected. A rotating plate 11 is rotatably connected to the bottom wall of the mounting plate 2, and the rotating plate 11 and the slide plate 12 are rotatably connected. When the mounting plate 2 vibrates up and down, the damping plate 15 slides in the magnetic tube 13.

[0025] A detection element is installed in the regulating box 18. The output shaft 6 and the rotating shaft 7 are connected by a coupling, so that they rotate synchronously. This drives multiple regulating pipes 20 and rotating ring 19 to rotate together. During the rotation, under the action of centrifugal force, the first piston disc 21 gradually moves away from the rotating shaft 7, forcing the air in the regulating pipe 20 into the space between the regulating box 18 and the rotating ring 19, and then into the subsequent regulating chamber 24 through the connecting hole 23. When the mounting plate 2 vibrates up and down, it not only compresses the telescopic rod 9 and the shock-absorbing spring 10, but also squeezes the rotating plate 11 to rotate. When the rotating plate 11 rotates, it squeezes the sliding plate 12 to slide, so that the connecting rod 14 slides with the damping plate 15 in the magnetic tube 13. The damping plate 15 is an iron block. When the iron block slides in the magnetic tube 13, it will decelerate significantly, and even eventually slide at a near-uniform speed. The core reason for this phenomenon is not the static attraction of the magnet to the iron block, but the magnetic damping effect generated by electromagnetic induction (the Ampere force of the eddy current opposes the motion), thus achieving a good shock absorption effect without generating much noise.

[0026] Example 2: refer to Figure 2 and Figure 3The testing component also includes an adjustment cavity 24 opened in the adjustment frame 3. A second piston disc 25 is slidably installed in the adjustment cavity 24. A second reset rod 26 is connected between the second piston disc 25 and the inner wall of the second adjustment cavity 24. A connecting hole 23 is opened between the adjustment cavity 24 and the adjustment box 18. An annular groove is opened on the side wall of the damping plate 15. A reinforcing plate 16 is slidably installed in the annular groove. An adjustment airbag 33 is provided at the center of the annular groove. A connecting pipe 27 is connected between the adjustment airbag 33 and the adjustment cavity 24. A reinforcing plate 16 is slidably installed in the damping plate 15. When the speed of the motor 5 increases, the internal magnetic field of the magnetic tube 13 increases, and the reinforcing plate 16 slides and misaligns with the damping plate 15.

[0027] The adjustment frame 3 has a magnetic adjustment groove, and an adjuster 30 is fixedly installed in the magnetic adjustment groove. An adjustment plate 31 is slidably installed on the adjuster 30. A first magnet 29 is fixedly installed on the bottom wall of the second piston disc 25. A second magnet 32 ​​that attracts the first magnet 29 is provided on the adjustment plate 31. The magnetic strength of the magnetic tube 13 is adjusted by the adjuster 30.

[0028] Based on the above-mentioned vibration reduction methods, the magnetic field is the basis for generating eddy currents and Ampere force. The magnitude of the Ampere force is positively correlated with the square of the magnetic field strength, which is the most direct way to improve the deceleration effect. A high-energy-product strong magnet is selected: replacing ordinary magnets with N52-grade neodymium iron boron permanent magnets (currently the strongest permanent magnets used in civilian applications). This significantly enhances the radial magnetic field of the magnetic tube, resulting in a higher induced electromotive force and stronger eddy currents when cutting the iron block. Similarly, an adjustable electromagnet can meet the motor's needs under different conditions. Different rotational speeds generate different centrifugal forces, meaning more air is supplied to the regulating chamber 24 via the regulating pipe 20, thus causing the second piston disc 25 to descend a different distance. Figure 6 As shown, when the second piston disc 25 moves down, it will drive the adjusting plate 31 to slide through the attraction between the first magnet 29 and the second magnet 32, and then use the regulator 30 to adjust the output magnetic force of the magnetic tube 13, thereby changing the damping intensity.

[0029] In addition, when the second piston disc 25 moves down, air will be delivered to the two regulating air bladders 33 through the connecting pipe 27. The regulating air bladders 33 expand and push out the reinforcing plate 16. It is worth noting that the reinforcing plate 16 and the damping plate 15 are also made of iron, which can increase the area of ​​cutting magnetic field lines, thereby further improving the damping effect.

[0030] An electric motor employing a shock-resistant mechanism.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A seismic-resistant mechanism, comprising a base and a motor mounted on top of the base, characterized in that... Also includes: The mounting plate slides onto the base. The adaptive damping assembly includes an adjustment box movably mounted on top of a mounting plate, containing a detection element for detecting motor speed, and a sliding plate slidably mounted on a base. A connecting rod is mounted on the sliding plate, and a damping plate is fixedly mounted on the end of the connecting rod away from the sliding plate. A magnetic tube is fixedly mounted on the inner wall of the base, and the damping plate is located in the magnetic tube. When the mounting plate vibrates up and down, the damping plate slides in the magnetic tube. A reinforcing plate is slidably mounted in the damping plate. When the motor speed increases, the internal magnetic field of the magnetic tube increases, and the reinforcing plate slides and misaligns with the damping plate.

2. The earthquake-resistant mechanism according to claim 1, characterized in that... Multiple telescopic rods are connected between the inner bottom wall of the base and the bottom wall of the mounting plate, and each telescopic rod is fitted with a shock-absorbing spring.

3. The earthquake-resistant mechanism according to claim 1, characterized in that... The mounting plate has a sliding groove, on which an adjustment frame is slidably mounted, and the adjustment box is mounted on the adjustment frame.

4. The earthquake-resistant mechanism according to claim 1, characterized in that... The motor is provided with an output shaft, and a connecting shaft is rotatably inserted in the regulating box. A coupling connects the connecting shaft and the output shaft.

5. The earthquake-resistant mechanism according to claim 4, characterized in that... The detection component includes a rotating ring mounted in a rotating adjustment box. The connecting shaft is located on the side wall inside the rotating ring and is provided with multiple adjusting tubes at equal intervals. Each adjusting tube is provided with a first piston disc, and a first reset rod is provided between the first piston disc and the inner wall of the adjusting tube.

6. The earthquake-resistant mechanism according to claim 5, characterized in that... The rotating ring and the adjusting box are connected by a sealed bearing.

7. A seismic-resistant mechanism according to claim 5, characterized in that... The detection component further includes an adjustment cavity formed in the adjustment frame, a second piston disc is slidably installed in the adjustment cavity, a second reset rod is connected between the second piston disc and the inner wall of the second adjustment cavity, and a connection hole is formed between the adjustment cavity and the adjustment box.

8. A seismic-resistant mechanism according to claim 24, characterized in that... The damping plate has an annular groove on its side wall, the reinforcing plate is slidably installed in the annular groove, an adjusting airbag is provided at the center of the annular groove, and a connecting pipe connects the adjusting airbag and the adjusting cavity.

9. A seismic-resistant mechanism according to claim 7, characterized in that... The adjusting frame has a magnetic adjusting groove, an adjuster is fixedly installed in the magnetic adjusting groove, an adjusting plate is slidably installed on the adjuster, a first magnet is fixedly installed on the bottom wall of the second piston disc, and a second magnet is provided on the adjusting plate that attracts the first magnet.

10. A seismic-resistant mechanism according to claim 1, characterized in that... The magnetic tube is provided with an elastic rod, and the elastic rod and the damping plate are fixedly connected. A rotating plate is rotatably connected to the bottom wall of the mounting plate, and the rotating plate and the sliding plate are rotatably connected.

11. A seismic-resistant mechanism according to claim 1, characterized in that... A positioning frame is fixedly installed on the mounting plate. An anti-slip pad is provided on the inner wall of the positioning frame. A fixing frame is provided on the mounting plate. A connecting component is provided between the fixing frame and the motor.

12. An electric motor employing the anti-vibration mechanism as described in claim 1.

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