A shockproof base of a permanent magnet motor

Abstract

This utility model discloses a vibration-damping base for a permanent magnet motor, belonging to the field of mechanical equipment technology. The utility model includes a base body and rectangular blocks. The base body consists of a base plate and a cross platform. Base plates are installed on both sides of the cross platform. Two rectangular blocks are symmetrically arranged on both sides of the cross platform. Each rectangular block has a sliding groove, within which a counterweight is slidably fitted. A lead screw is installed within the groove, and a first threaded hole is formed within the counterweight. This utility model compensates for asymmetrical vibrations of the permanent magnet motor by using sliding counterweights. This allows the base body to adjust the position of the cast iron counterweights on both sides according to the actual asymmetrical vibrations generated during motor operation, effectively balancing the asymmetrical vibrations of the motor, adapting to vibration changes under different operating conditions, improving vibration damping, reducing vibration amplitude and noise levels during motor operation, and the cast iron counterweights have high density and stability.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, specifically to a shockproof base for a permanent magnet motor. Background Technology

[0002] In industrial production and numerous mechanical equipment applications, permanent magnet motors have been widely used due to their significant advantages such as high efficiency, energy saving, and high power density. However, during actual operation, permanent magnet motors are often subject to vibration due to various factors. These vibrations originate from diverse sources, such as uneven air gaps between the rotor and stator inside the motor, unstable changes in the motor load, and minor quality deviations that may exist during the motor's manufacturing process. Prolonged exposure to vibration can gradually loosen the connections between the motor's components, leading to a decrease in the motor's operational accuracy. Therefore, effectively reducing the vibration of permanent magnet motors during operation has become a crucial problem that urgently needs to be solved.

[0003] Currently, several anti-vibration base technologies exist on the market to address the vibration problem of permanent magnet motors. Common anti-vibration bases often employ rubber damping pads or spring damping devices to absorb and buffer the motor's vibration energy. However, these traditional anti-vibration bases have certain limitations. While rubber damping pads and spring damping devices offer some vibration reduction, their effectiveness is not ideal for asymmetrical vibrations during motor operation. This is because asymmetrical vibrations are often accompanied by complex vibration modes and frequency variations, making it difficult for spring damping devices to adaptively adjust to these changes and fundamentally balance the motor's asymmetrical vibration. Utility Model Content

[0004] The purpose of this utility model is to provide a shockproof base for a permanent magnet motor, which compensates for the asymmetrical vibration of the permanent magnet motor by setting a sliding counterweight, thus solving the problem of asymmetrical vibration of the motor.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model is a shockproof base for a permanent magnet motor, including a base body and rectangular blocks. The base body is composed of a base plate and a cross platform. Base plates are installed on both sides of the cross platform. There are two rectangular blocks, which are symmetrically arranged on both sides of the cross platform. A sliding groove is opened in the rectangular block, and a counterweight is slidably fitted in the sliding groove. A lead screw is set in the sliding groove, and a first threaded hole is opened in the counterweight. The lead screw is threadedly fitted in the first threaded hole.

[0007] Furthermore, limit blocks are installed on both sides of the counterweight, and limit grooves are opened in the rectangular block. There are two limit grooves, and both limit grooves are connected to the sliding groove. The two limit blocks slide in the corresponding limit grooves.

[0008] Furthermore, a ring is fitted onto the end of the lead screw.

[0009] Furthermore, each of the two base plates has an installation groove at its end, and a buffer block is installed in the installation groove.

[0010] Furthermore, both ends of the base plate are provided with through holes, and each through hole is fitted with a screw. The buffer block is provided with a second threaded hole, and the end of the screw is threaded into the second threaded hole.

[0011] Furthermore, pre-drilled holes are provided on both sides of the base plate.

[0012] This utility model has the following beneficial effects:

[0013] This utility model compensates for the asymmetrical vibration of a permanent magnet motor by setting a sliding counterweight. This allows the base body to adjust the position of the cast iron counterweights on both sides according to the actual asymmetrical vibration generated during the operation of the permanent magnet motor. This effectively balances the asymmetrical vibration of the motor, adapts to the vibration changes of the motor under different working conditions, improves the shock absorption effect, and reduces the vibration amplitude and noise level of the motor during operation. In addition, the cast iron counterweight has high density and stability, which can maintain its counterweight effect and ensure the long-term reliability and stability of the anti-vibration base body.

[0014] This invention prevents the base body from shifting during shock absorption by setting a buffer block, effectively constraining the platform displacement during shock absorption, thereby significantly improving the reliability and safety of the shock absorption system. The polyurethane material has both high elasticity and wear resistance, and can absorb impact energy through its own compression deformation when the motor experiences sudden severe vibration or load change, avoiding rigid collision between the base body and the external support structure. This protects the motor body from instantaneous impact damage and reduces noise transmission caused by direct metal contact.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the base body;

[0017] Figure 2 This is a structural diagram of the base body;

[0018] Figure 3 This is a schematic diagram of the base plate structure;

[0019] Figure 4 This is a schematic diagram of the rectangular block structure.

[0020] In the diagram: 1. Base body; 2. Base plate; 201. Reserved hole; 202. Mounting groove; 203. Through hole; 204. First threaded hole; 3. Horizontal platform; 4. Rectangular block; 401. Slide groove; 402. Limiting groove; 5. Counterweight block; 501. First threaded hole; 6. Lead screw; 601. Ring; 7. Limiting block; 8. Buffer block; 801. Second threaded hole; 9. Screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a shockproof base for a permanent magnet motor, comprising a base body 1 and rectangular blocks 4. The base body 1 consists of a base plate 2 and a cross platform 3. Pre-drilled holes 201 are provided on both sides of the base plate 2 to facilitate bolt connection between the base and the equipment frame. Base plates 2 are installed on both sides of the cross platform 3. Two rectangular blocks 4 are symmetrically arranged on both sides of the cross platform 3. Sliding grooves 401 are provided within each rectangular block 4. The inner sliding fit includes a counterweight 5, which is a cast iron block. Limiting blocks 7 are installed on both sides of the counterweight 5. A limiting groove 402 is opened in the rectangular block 4. There are two limiting grooves 402. Both limiting grooves 402 are connected to the sliding groove 401. The two limiting blocks 7 are slidably fitted in the corresponding limiting grooves 402. A ring 601 is sleeved on the end of the lead screw 6. The lead screw 6 is set in the sliding groove 401. A first threaded hole 501 is opened in the counterweight 5. The lead screw 6 is threadedly fitted in the first threaded hole 501.

[0023] The cast iron counterweight 5 slides linearly through the slide groove 401. The first threaded hole 501 machined inside the counterweight 5 forms a threaded transmission pair with the lead screw 6. When the motor vibrates asymmetrically due to uneven rotor mass distribution or load changes, the operator can rotate the ring 601 at the end of the lead screw 6 to drive the counterweight 5 to move along the slide groove 401. By adjusting the symmetrical position of the counterweights 5 on both sides, the overall mass distribution of the base is changed, thereby counteracting the inertial eccentric torque generated when the motor is running. The limiting block 7 cooperates with the limiting groove 402 in the rectangular block 4 to ensure that the counterweight 5 slides only along the axial direction, avoiding deflection and jamming, and preventing the counterweight 5 from moving out of the slide groove 401.

[0024] Both base plates 2 have mounting grooves 202 at their ends, and buffer blocks 8 are installed in the mounting grooves 202. The buffer blocks 8 are made of polyurethane. Both ends of the base plates 2 have through holes 203, and both through holes 203 are fitted with screws 9. The buffer blocks 8 have second threaded holes 801. The end of the screw 9 is threaded into the second threaded hole 801. The polyurethane buffer blocks 8 are embedded in the mounting grooves 202 at the ends of the base plates 2 and fixed by the screws 9 and the second threaded holes 801 on the buffer blocks 8. When the motor starts or stops or a sudden load causes vibration, the base body 1 may swing significantly. At this time, the buffer blocks 8 come into contact with the external mounting surface and undergo elastic deformation. The high damping characteristics of polyurethane are used to absorb the impact energy and limit the displacement within a certain range.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A shockproof base for a permanent magnet motor, comprising a base body (1), characterized in that: The base body (1) is composed of a base plate (2) and a cross platform (3), and the base plate (2) is installed on both sides of the cross platform (3); It also includes two rectangular blocks (4), which are symmetrically arranged on both sides of the horizontal platform (3). A sliding groove (401) is provided in the rectangular block (4), and a counterweight (5) is slidably fitted in the sliding groove (401). A lead screw (6) is provided in the sliding groove (401), and a first threaded hole (501) is provided in the counterweight (5). The lead screw (6) is threadedly fitted in the first threaded hole (501).

2. A shockproof base for a permanent magnet motor according to claim 1, characterized in that, Limiting blocks (7) are installed on both sides of the counterweight (5). A limiting groove (402) is opened in the rectangular block (4). There are two limiting grooves (402). Both limiting grooves (402) are connected to the sliding groove (401). The two limiting blocks (7) slide in the corresponding limiting grooves (402).

3. A shock mount for a permanent magnet electric machine according to claim 2, characterized in that A ring (601) is sleeved at the end of the lead screw (6).

4. The anti-vibration base of a permanent magnet motor according to claim 1, characterized in that, Each of the two base plates (2) has an installation groove (202) at its end, and a buffer block (8) is installed in the installation groove (202).

5. A shock mount for a permanent magnet electric machine according to claim 4, characterized in that Both ends of the base plate (2) are provided with through holes (203), and both through holes (203) are fitted with screws (9). The buffer block (8) is provided with second threaded holes (801), and the end of the screw (9) is threaded into the second threaded hole (801).

6. A shock mount for a permanent magnet electric machine according to claim 4, wherein The base plate (2) has reserved holes (201) on both sides.

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