Sound insulation protection device for motor

Abstract

The utility model discloses a motor sound insulation protection device, which relates to the technical field of motor sound insulation protection and comprises a base plate, an adjusting mechanism is fixedly mounted on one side of the top of the base plate, a protection mechanism is fixedly mounted on the top of the adjusting mechanism, and a mounting plate is mounted on the top of the base plate through bolts. And a driving motor is fixedly mounted at the top of the mounting plate. By the adoption of the structure, the noise reduction and heat dissipation functions are achieved during application by arranging the protection mechanism, during operation, the sound insulation shell undertakes the basic sound insulation task, meanwhile, the heat dissipation fan is started to be matched with the heat dissipation window for heat dissipation, and particularly, the heat dissipation window can be covered with the sound insulation covers on the mounting ring and the supporting rod, so that the heat dissipation effect is improved. And sound is transmitted out from the heat dissipation window, enters the inner side of the sound insulation cover firstly and is blocked and absorbed by the internal perforated sound absorption plate, so that noise overflow is reduced to the greatest extent, and the device has good noise prevention capability, effectively reduces noise and prevents noise transmission.

Description

Technical Field

[0001] This utility model belongs to the field of motor noise insulation and protection technology, and specifically relates to a motor noise insulation and protection device. Background Technology

[0002] Motor noise refers to unwanted sounds generated by a motor during operation. The various mechanical components and electromagnetic processes inside the motor are the main sources of noise when the motor is working.

[0003] From a mechanical point of view, the contact and friction between the balls and the inner and outer rings of the motor bearings during high-speed rotation will generate vibration. This vibration will propagate outward in the form of sound waves, thus generating noise. In addition, if there is an imbalance when the motor rotor is rotating, it will also cause the motor to vibrate as a whole, thus generating noise. Furthermore, when the motor fan is rotating, the interaction between the fan blades and the air will also generate aerodynamic noise.

[0004] In the electromagnetic field, when alternating current flows through the motor windings, an alternating magnetic field is generated in the motor core. This magnetic field causes magnetostriction of the core, resulting in minute deformation and vibration of the core, which in turn generates electromagnetic noise. Moreover, when the current in the motor is reversed or unevenly distributed between the windings, it may also cause fluctuations in the magnetic field, further generating noise. This noise not only interferes with the surrounding environment, but may also affect the normal operation of equipment in some situations where noise requirements are strict.

[0005] Chinese patent with announcement number "CN219477762U" discloses a sound insulation device for a permanent magnet fault-tolerant motor. By setting up a sound insulation cover and a sound absorption cover, it absorbs and isolates the noise generated during the operation of the permanent magnet fault-tolerant motor body, so as to prevent the noise from being transmitted to the outside world, thereby ensuring the operating experience of the staff and improving the use of the permanent magnet fault-tolerant motor.

[0006] The current device was initially designed with some sound insulation measures and has a certain sound insulation effect. However, problems have been exposed after it was put into actual use: In terms of heat dissipation, the top cylinder assists in the heat dissipation of the motor, but the noise of the motor running will be directly emitted outward from the top cylinder. Since the top cylinder is open to the outside, it will destroy the quiet environment created by the soundproof cover, and the noise reduction will not meet expectations. In terms of structure and maintenance, the motor is placed inside the sound-absorbing cover. The connection between the sound-absorbing cover and the surrounding components is complicated, involving screws, clips and other connecting parts. Disassembly requires sequential operation with tools, and the parts must be protected from damage. Disassembly and maintenance are extremely complicated, increasing the later operation and maintenance costs. In view of these key issues, comprehensive and in-depth improvement is imperative to meet the usage requirements and improve performance. Utility Model Content

[0007] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a motor sound insulation and protection device to solve the problems of poor sound insulation effect and inconvenience of disassembly and assembly during the application of the prior art.

[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0009] A motor noise insulation and protection device includes a base plate, an adjustment mechanism fixedly installed on one side of the top of the base plate, a protective mechanism fixedly installed on the top of the adjustment mechanism, a mounting plate fixedly installed on the top of the base plate by bolts, a drive motor fixedly installed on the top of the mounting plate, the output end of the drive motor passing through the base plate, and the protective mechanism covering the outside of the drive motor.

[0010] The protective mechanism includes two soundproof shells, which are fixedly connected to the top two sides of the adjustment mechanism. Soundproof components are fixedly installed in the middle of the outer sides of the two soundproof shells, and heat dissipation components are provided inside the protective mechanism on the inner side of the soundproof components.

[0011] As a preferred technical solution, the heat dissipation component includes a heat dissipation window, which is fixedly installed on the middle of both sides of the soundproof shell. A mounting bracket is fixedly installed inside the heat dissipation window, and a cooling fan is movably installed on the inner side of the mounting bracket.

[0012] As a preferred technical solution, the sound insulation component includes a mounting ring, which is bolted to the outer middle of the sound insulation shell. Support rods are fixedly connected to the outer side of the mounting ring at equal intervals. A sound insulation cover is fixedly installed at the outer end of the support rods. A perforated sound-absorbing plate is fixedly installed on the inner side of the sound insulation cover. The overall cross-sectional shape of the sound insulation cover is an isosceles trapezoid. The sound insulation cover covers the outer side of the heat dissipation window.

[0013] As a preferred technical solution, the adjustment mechanism includes a guide rail, which is fixedly installed on the middle of one side of the base plate. A lead screw is rotatably connected inside the guide rail, and the two ends of the lead screw have opposite thread directions. An adjustment component is fixedly installed at one end of the guide rail, and the end of the adjustment component passes through the guide rail and is fixedly connected to one end of the lead screw. Both ends of the lead screw are threadedly connected to sliders, which are slidably connected inside the guide rail. A connecting frame is fixedly installed on the top of the slider, and the outer end of the connecting frame is fixedly connected to the lower outer side of the soundproof shell.

[0014] As a preferred technical solution, the adjustment component includes a fixed plate, which is fixedly installed at one end of the guide rail. An adjustment knob is rotatably connected to the outer side of the fixed plate, and a hand-tightening screw is threaded to one end of the outer side of the adjustment knob. The end of the hand-tightening screw passes through the adjustment knob.

[0015] As a preferred technical solution, the outer side of the fixed plate is provided with limit holes arranged in a ring at equal intervals, and the end of the hand-tightening screw is inserted into the inner side of the limit holes.

[0016] As a preferred technical solution, mounting holes are provided at all four corners of the substrate, and the mounting holes are countersunk holes. The outer surface edges of the substrate, soundproof shell, guide rail and connecting frame are all rounded.

[0017] In summary, the present invention has the following main advantages:

[0018] First, during application, this device rotates the adjustment knob to drive the lead screw to rotate within the guide rail. Because the threads at both ends of the lead screw are reversed, the slider slides synchronously back and forth within the guide rail, thereby linking the soundproof housing on top of the connecting frame to move synchronously. When the soundproof housing is opened, the drive motor on the mounting plate can be easily removed, making disassembly and maintenance convenient and efficient. When installing the motor, place the motor on top of the mounting plate, reverse the adjustment knob, and the lead screw drives the soundproof housing to move inward and close, thus providing sound insulation for the motor.

[0019] Secondly, by incorporating a protective mechanism, this device combines noise reduction and heat dissipation during application. During operation, the soundproof outer shell undertakes the basic sound insulation task, while the cooling fan and heat dissipation window work together to dissipate heat. In particular, the soundproof covers on the mounting ring and support rod cover the heat dissipation window. Sound transmitted from the heat dissipation window first enters the inside of the soundproof cover and is blocked and absorbed by the internal perforated sound-absorbing plate, minimizing noise leakage and giving the device good noise reduction capabilities, effectively reducing noise and preventing noise transmission. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a bottom view structural diagram of this utility model;

[0022] Figure 3 This is a schematic diagram of the unfolded structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the protective mechanism of this utility model on the side away from the drive motor;

[0024] Figure 5 This is a schematic diagram of the protective mechanism of this utility model on the side near the drive motor.

[0025] Reference numerals: 1. Base plate; 2. Adjustment mechanism; 21. Guide rail; 22. Lead screw; 23. Adjustment assembly; 231. Fixed plate; 232. Adjustment knob; 233. Hand-tightening screw; 234. Limiting hole; 24. Slider; 25. Connecting frame; 3. Protective mechanism; 31. Soundproof shell; 32. Soundproof assembly; 321. Mounting ring; 322. Support rod; 323. Soundproof cover; 324. Perforated sound-absorbing panel; 33. Heat dissipation assembly; 331. Heat dissipation window; 332. Mounting bracket; 333. Cooling fan; 4. Mounting plate; 5. Drive motor; 6. Mounting hole. Detailed Implementation

[0026] Example

[0027] refer to Figures 1 to 5 The motor noise insulation and protection device of this embodiment includes a base plate 1. An adjustment mechanism 2 is fixedly installed on one side of the top of the base plate 1. A protection mechanism 3 is fixedly installed on the top of the adjustment mechanism 2. An mounting plate 4 is installed on the top of the base plate 1 by bolts. A drive motor 5 is fixedly installed on the top of the mounting plate 4. The output end of the drive motor 5 passes through the base plate 1. The protection mechanism 3 covers the outside of the drive motor 5.

[0028] The protective mechanism 3 includes two soundproof shells 31, which are fixedly connected to the top of the adjustment mechanism 2 on both sides. A soundproof component 32 is fixedly installed on the outer middle of the two soundproof shells 31. A heat dissipation component 33 is provided inside the protective mechanism 3 on the inner side of the soundproof component 32. The mounting plate 4 is fixed to the base plate 1 by bolts. The drive motor 5 on the mounting plate 4 is stably placed, and its output end can smoothly pass through the base plate 1 to work. The protective mechanism 3 precisely covers the outer side of the drive motor 5, protecting the motor operation. In the protective mechanism 3, the soundproof shells 31 fixed to the top of the adjustment mechanism 2 on both sides can isolate most of the noise from the main body. The soundproof component 32 located on the outer middle of the soundproof shell 31 further enhances the sound insulation effect and blocks the noise from spreading. The heat dissipation component 33 inside the protective mechanism 3 can, while providing sound insulation, meet the heat dissipation needs of the drive motor 5, ensuring that the motor operates stably at a suitable temperature and reducing the risk of failure due to overheating, noise, and other problems.

[0029] refer to Figures 4-5The heat dissipation component 33 includes a heat dissipation window 331, which is fixedly installed on the middle of both sides of the soundproof housing 31. A mounting bracket 332 is fixedly installed inside the heat dissipation window 331, and a cooling fan 333 is movably installed on the inner side of the mounting bracket 332. The soundproofing component 32 includes a mounting ring 321, which is bolted to the middle of the outer side of the soundproof housing 31. Support rods 322 are fixedly connected at equal intervals to the outer side of the mounting ring 321. A soundproof cover 323 is fixedly installed at the outer end of the support rods 322. A perforated sound-absorbing panel 324 is fixedly installed on the inner side of the soundproof cover 323. The overall cross-sectional shape of the soundproof cover 323 is an isosceles trapezoid. The soundproof cover 323 covers the outer side of the heat dissipation window 331. A wire hole is provided on one side of the soundproof housing 31 near the heat dissipation window 331 for connecting wires to supply power to the internal drive motor 5. The heat dissipation window 331 is fixed to the soundproof housing 31. The two sides at the center provide a direct channel for heat dissipation. The cooling fan 333, which is movably mounted on the internal mounting bracket 332, can actively blow air when the motor is running and generating heat, accelerate the heat dissipation, maintain the appropriate operating temperature of the motor, ensure operational stability, and reduce the probability of failure caused by overheating. In the sound insulation component 32, the mounting ring 321 is fixed to the outer center of the sound insulation shell 31 with bolts, and the structure is stable. The sound insulation cover 323 connected to the outer support rod 322 is set with an isosceles trapezoidal cross section, which can effectively cover the outside of the heat dissipation window 331. It not only blocks the noise from being transmitted from the heat dissipation window 331, but also uses the perforated sound-absorbing plate 324 on the inner side to further absorb and process the transmitted noise, thereby enhancing the overall sound insulation effect. In addition, the wire hole opened on one side of the sound insulation shell 31 provides convenience for connecting wires, ensuring a stable power supply to the internal drive motor 5, so that all components of the entire device work together to efficiently achieve the functions of sound insulation and protection.

[0030] refer to Figures 1-3The adjustment mechanism 2 includes a guide rail 21, which is fixedly installed on the middle of one side of the base plate 1. A lead screw 22 is rotatably connected inside the guide rail 21, with the two ends of the lead screw 22 having opposite thread directions. An adjustment component 23 is fixedly installed at one end of the guide rail 21, and the end of the adjustment component 23 passes through the guide rail 21 and is fixedly connected to one end of the lead screw 22. Both ends of the lead screw 22 are threadedly connected to sliders 24, which are slidably connected inside the guide rail 21. A connecting frame 25 is fixedly installed on the top of the slider 24, and the outer end of the connecting frame 25 is fixedly connected to the lower outer side of the soundproof housing 31. The adjustment component 23 includes a fixed plate 231, which is fixedly installed at one end of the guide rail 21. An adjustment knob 232 is rotatably connected to the outer side of the fixed plate 231, and a hand-tightening screw 233 is threadedly connected to one end of the outer side of the adjustment knob 232. A lead screw 22, which is rotatably connected inside the guide rail 21 and passes through the adjusting knob 232, has opposite threads at both ends. It works in conjunction with the threaded slider 24. When the lead screw 22 rotates, it drives the slider 24 to slide stably in both directions within the guide rail 21. The top connecting bracket 25 of the slider 24 is fixed to the lower outer side of the soundproof housing 31, achieving precise linkage. The opening and closing of the soundproof housing 31 can be conveniently controlled through the adjusting mechanism 2. In the adjusting assembly 23, the fixed plate 231 is fixed to one end of the guide rail 21. The adjusting knob 232, which rotates on the outside, is convenient for manual operation. The hand-tightening screw 233 at one end of the adjusting knob 232 passes through the adjusting knob 232. After the device is adjusted, tightening the screw can lock the position of the adjusting knob 232, preventing accidental changes to the adjustment state and ensuring stable operation of the soundproof protection device under different working conditions. This also facilitates the disassembly and protection of the drive motor 5.

[0031] refer to Figures 1-3The outer side of the fixed plate 231 has equally spaced, ring-shaped limiting holes 234. The end of the hand-tightening screw 233 is inserted into the inner side of the limiting hole 234. Mounting holes 6 are provided at each of the four corners of the base plate 1. The mounting holes 6 are countersunk holes. The outer surfaces of the base plate 1, the soundproof housing 31, the guide rail 21, and the connecting bracket 25 are all rounded. The equally spaced, ring-shaped limiting holes 234 on the outer side of the fixed plate 231 precisely match the end of the hand-tightening screw 233. When the hand-tightening screw 233 is tightened so that its end is inserted into the limiting hole 234, the fixing effect of the adjusting knob 232 is greatly enhanced, effectively preventing vibration. To prevent loosening due to accidental contact, and to ensure a stable and reliable state after adjustment, providing a solid guarantee for the operation of the device, the four corners of the base plate 1 are provided with countersunk mounting holes 6. During installation, the bolt head can be fully embedded in the hole, which not only ensures the flatness of the mounting surface and reduces the risk of interference with other components, but also improves the overall aesthetics. In addition, the outer surface corners of the base plate 1, the soundproof shell 31, the guide rail 21 and the connecting frame 25 are all rounded. This design effectively reduces stress concentration at the corners, reduces the probability of damage to components due to long-term stress and collision, extends the service life of components, and also avoids the hidden danger of personnel being scratched by sharp corners during operation.

[0032] Operating principle and advantages: In actual use, the user can turn the adjustment knob 232. When the knob is turned, it will drive the lead screw 22 to rotate inside the guide rail 21. As the lead screw 22 rotates, based on the design of the opposite screw threads at both ends, it can drive the slider 24 inside the guide rail 21 to reciprocate synchronously at both ends. The sliding of the slider 24 is linked to the soundproof shell 31 on the top of the connecting frame 25, causing it to reciprocate accordingly. When the soundproof shell 31 slides to the open state, the drive motor 5 on the top of the mounting plate 4 can be easily removed. In this way, the overall disassembly, assembly and maintenance operation of the device becomes convenient and efficient. When installing the drive motor 5, simply place it on the top of the mounting plate 4, turn the adjustment knob 232 again to drive the lead screw 22 to reverse, and the lead screw 22 drives the two soundproof shells 31 to move inward until they merge, thereby providing soundproof protection for the drive motor 5.

[0033] This device is also equipped with a protective mechanism 3 to enhance noise reduction and heat dissipation efficiency. During operation, on the one hand, the soundproof shell 31 provides basic sound insulation; on the other hand, the cooling fan 333 is activated, working with the heat dissipation window 331 to dissipate heat inside the soundproof shell 31. At the same time, the soundproof cover 323 fixed on the mounting ring 321 and its outer support rod 322 covers the outside of the heat dissipation window 331. When sound comes out from the heat dissipation window 331, it first enters the inside of the soundproof cover 323. The sound is blocked and absorbed by the perforated sound-absorbing plate 324 inside the soundproof cover 323. This process can minimize the noise overflowing from the inside of the soundproof shell 31, ensuring that the device has good noise prevention capabilities during the overall application process, effectively preventing noise from spreading outward, and achieving a good noise reduction effect.

Claims

1. A motor noise insulation and protection device, comprising a base plate (1), characterized in that: An adjustment mechanism (2) is fixedly installed on one side of the top of the substrate (1). A protective mechanism (3) is fixedly installed on the top of the adjustment mechanism (2). An mounting plate (4) is installed on the top of the substrate (1) by bolts. A drive motor (5) is fixedly installed on the top of the mounting plate (4). The output end of the drive motor (5) passes through the substrate (1). The protective mechanism (3) covers the outside of the drive motor (5). The protective mechanism (3) includes two soundproof shells (31), which are fixedly connected to the top two sides of the adjustment mechanism (2). A soundproof component (32) is fixedly installed on the middle of the outer side of the two soundproof shells (31). A heat dissipation component (33) is provided inside the protective mechanism (3) on the inner side of the soundproof component (32).

2. The motor sound insulation and protection device according to claim 1, characterized in that: The heat dissipation component (33) includes a heat dissipation window (331), which is fixedly installed on the middle of both sides of the soundproof shell (31). A mounting bracket (332) is fixedly installed inside the heat dissipation window (331), and a cooling fan (333) is movably installed on the inner side of the mounting bracket (332).

3. The motor sound insulation and protection device according to claim 2, characterized in that: The sound insulation component (32) includes a mounting ring (321), which is bolted to the outer middle of the sound insulation shell (31). Support rods (322) are fixedly connected to the outer side of the mounting ring (321) at equal intervals. A sound insulation cover (323) is fixedly installed at the outer end of the support rod (322). A perforated sound-absorbing plate (324) is fixedly installed on the inner side of the sound insulation cover (323). The overall cross-sectional shape of the sound insulation cover (323) is an isosceles trapezoid. The sound insulation cover (323) covers the outer side of the heat dissipation window (331).

4. The motor sound insulation and protection device according to claim 1, characterized in that: The adjustment mechanism (2) includes a guide rail (21), which is fixedly installed on the middle of one side of the base plate (1). A lead screw (22) is rotatably connected inside the guide rail (21). The two ends of the lead screw (22) have opposite thread directions. An adjustment component (23) is fixedly installed at one end of the guide rail (21). The end of the adjustment component (23) passes through the guide rail (21) and is fixedly connected to one end of the lead screw (22). Both ends of the lead screw (22) are threadedly connected to sliders (24). The sliders (24) are slidably connected inside the guide rail (21). A connecting frame (25) is fixedly installed on the top of the slider (24). The outer end of the connecting frame (25) is fixedly connected to the lower outer side of the soundproof shell (31).

5. The motor sound insulation and protection device according to claim 4, characterized in that: The adjustment assembly (23) includes a fixed plate (231), which is fixedly installed on one end of the guide rail (21). An adjustment knob (232) is rotatably connected to the outside of the fixed plate (231). A hand-tightening screw (233) is threaded to one end of the outside of the adjustment knob (232). The end of the hand-tightening screw (233) passes through the adjustment knob (232).

6. The motor sound insulation and protection device according to claim 5, characterized in that: The outer side of the fixed plate (231) is provided with limit holes (234) arranged in a ring at equal intervals, and the end of the hand-tightening screw (233) is inserted into the inner side of the limit hole (234).

7. A motor sound insulation and protection device according to claim 6, characterized in that: Mounting holes (6) are provided at the four corners of the substrate (1). The mounting holes (6) are countersunk holes. The outer surface edges of the substrate (1), soundproof shell (31), guide rail (21) and connecting frame (25) are all rounded.

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