Micromotor noise reduction device

Abstract

The utility model discloses a micromotor noise reduction device, and belongs to the technical field of motor noise reduction. Comprising a heat dissipation base, a cover body is installed on the top face of the heat dissipation base, an opening is formed in the cover body, a plurality of supporting assemblies are installed on the inner wall of the end, close to the heat dissipation base, of the cover body in a linear array mode, limiting assemblies are installed on the two supporting assemblies close to the open end of the cover body, and a placing plate is slidably installed in the cover body; a micro motor is installed on the placing plate, a spur rack is installed at the end, close to the supporting assembly, of the placing plate, the spur rack is connected with the supporting assembly in a meshed mode, the placing plate is driven to be removed or inserted into the cover body in the direction of the spur rack under the cooperation of the spur rack and the supporting assembly, and a door body is installed on the side wall of the cover body. A lock body is installed on the door body, and the cover body, the door body and the heat dissipation base form a noise reduction box body. The cover body and the heat dissipation base are matched with each other to build the noise reduction box body, the micromotor is placed in the noise reduction box body, noise reduction of the micromotor is achieved, the supporting assembly and the placing plate are installed in the cover body, and the spur rack installed at the end of the placing plate is connected with the supporting assembly in a meshed mode, so that movement of the placing plate is achieved. When the micro-motor needs to be overhauled, the placing plate is moved out of the cover body, the micro-motor can be overhauled, the cover body does not need to be disassembled, and the process of overhauling the micro-motor is simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor noise reduction, and in particular relates to a micro motor noise reduction device. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction. With the refinement of industrial division of labor, precision machining and production efficiency, motors are gradually developing in the direction of low noise, energy saving, variable frequency speed regulation, intelligence and specialization.

[0003] At present, motor noise reduction should start from the sound source. The main sources of motor noise are exhaust noise, cooling fan noise and vibration noise. The most effective way is to use some conventional noise reduction technologies, such as muffler, sound insulation, sound absorption, vibration isolation, etc.; micro motors are mostly placed in soundproof boxes for noise reduction. This noise reduction effect is better, but in the long-term use process, once the micro motor fails or needs regular maintenance, the soundproof box needs to be removed for maintenance. This method not only increases the difficulty of maintenance, but also requires a lot of time to remove the soundproof box. Utility Model Content

[0004] The purpose of the utility model is to provide a micromotor noise reduction device to solve the above problems existing in the prior art.

[0005] Technical solution: A micromotor noise reduction device includes a heat dissipation base, a cover body is installed on the top surface of the heat dissipation base, the cover body is provided with an opening, a plurality of support components are installed in a linear array on the inner wall of the end of the cover body close to the heat dissipation base, and two groups of support components close to the opening end of the cover body are both installed with limiting components, a placement plate is slidably installed in the cover body, a micromotor is installed on the placement plate, a spur rack is installed on the end of the placement plate close to the support component, the spur rack is meshed with the support component, and with the cooperation of the spur rack and the support component, the placement plate is driven to remove or insert the cover body along the direction of the spur rack, a door body is installed on the side wall of the cover body, a lock body is installed on the door body, and the cover body, the door body and the heat dissipation base form a noise reduction box.

[0006] Preferably, the support assembly includes a mounting plate, which is mounted on the inner wall of the cover body, and two groups of support plates are mounted on the side walls of the mounting plate, the support plates are placed up and down with gaps reserved between them, a mounting shaft is longitudinally installed between the support plates, a roller is rotatably installed on the mounting shaft, and the roller is meshingly connected to the spur rack.

[0007] Preferably, the support assembly further comprises a positioning plate, wherein the positioning plate is longitudinally mounted on the top surface of the support plate below, and two sets of pulleys are mounted on the top of the positioning plate, wherein the pulleys abut against the bottom surface of the placement plate.

[0008] Preferably, the limiting assembly includes a fixing plate, which is mounted on the top surface of the upper support plate, the top surface of the fixing plate is provided with an arc-shaped groove, the upper support plate is provided with a through hole, the through hole is located on the side of the fixing plate, an L-shaped fixing rod is installed in the through hole, and the upper support plate is provided with a contraction spring, one end of which is connected to the support plate, and the other end is connected to the bent end of the L-shaped fixing rod, and the roller is provided with a limiting hole at the end near the upper support plate, and the L-shaped fixing rod is inserted into the limiting hole to limit and fix the roller.

[0009] Preferably, a plurality of supporting slideways are installed in a linear array on the top surface of the heat dissipation base, and sliding blocks having the same number as the supporting slideways are installed on the bottom surface of the placement plate, and the sliding blocks are slidably connected to the supporting slideways.

[0010] Preferably, the inner wall of the cover body is installed with sound insulation cotton, and the edge of the sound insulation cotton located on the same side as the support component is in contact with the support component surface.

[0011] Beneficial effects: The utility model relates to a micromotor noise reduction device, which utilizes a cover body and a heat dissipation base to cooperate with each other to build a noise reduction box body, and the micromotor is placed in the noise reduction box body to achieve noise reduction of the micromotor, and a support assembly and a placement plate are installed in the cover body, and a spur rack installed at the end of the placement plate is meshed and connected with the support assembly to achieve movement of the placement plate. When the micromotor needs to be repaired, the placement plate is moved out of the cover body to achieve the repair of the micromotor without disassembling the cover body, thereby simplifying the process of repairing the micromotor;

[0012] Secondly, a limit assembly is installed on the support assembly located at the end. During the use of the micromotor, the limit assembly is used to limit the support assembly. With the cooperation of the limit assembly and the support assembly, the placement plate is limited and fixed in the cover to avoid displacement during the use of the micromotor, which may cause damage to the micromotor or components connected to it. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is the installation diagram of the placement plate of the utility model;

[0015] Figure 3 It is a schematic diagram of the support assembly of the utility model;

[0016] Figure 4 It is a schematic diagram of the limit assembly of the utility model.

[0017] Figures 1 to 4The figures are marked as follows: 1. heat dissipation base; 2. cover body; 3. support assembly; 4. limit assembly; 5. placement plate; 6. micromotor; 7. spur rack; 8. door body; 31. mounting plate; 32. support plate; 33. mounting shaft; 34. roller; 35. positioning plate; 36. pulley; 41. fixing plate; 42. arc-shaped groove; 43. through hole; 44. L-shaped fixing rod; 45. contraction spring. DETAILED DESCRIPTION

[0018] like Figures 1 to 4 As shown, the utility model provides a technical solution: a micro-motor noise reduction device, including a heat dissipation base 1, the heat dissipation base 1 can dissipate heat and also be used to support the micro-motor 6, the top surface of the heat dissipation base 1 is installed with a cover 2, and the cover 2 is provided with an opening, such as Figure 1 As shown, a plurality of support assemblies 3 are installed in a linear array on the inner wall of the end of the cover body 2 close to the heat dissipation base 1, and the support assemblies 3 are located on the inner walls of the cover body 2 opposite to each other and the support assemblies 3 correspond to each other one by one, and the two groups of support assemblies 3 close to the open end of the cover body 2 are both installed with a limiting assembly 4, and the supporting assembly 3 is limited by the limiting assembly 4, and a placing plate 5 is slidably installed in the cover body 2, and a micro motor 6 is installed on the placing plate 5, and a spur rack 7 is installed on the end of the placing plate 5 close to the supporting assembly 3, and the spur rack 7 is meshed with the supporting assembly 3. Under the cooperation of the spur rack 7 and the supporting assembly 3, the placing plate 5 is driven to be removed or inserted into the cover body 2 along the direction of the spur rack 7. When the placing plate 5 needs to be moved out of the cover body 2, an external force is applied to the limiting assembly 4 to disengage the limiting assembly 4 from the supporting assembly 3, and the placing plate 5 can remove the cover body 2. When the placing plate 5 moves into the cover body 2, the supporting assembly 3 is limited by the limiting assembly 4, so that the spur rack 7 and the supporting assembly 3 can be meshed. The position limit of the meshing connection of the support assembly 3 remains unchanged. At this time, the placement plate 5 can be limited and fixed in the cover body 2. The side wall of the cover body 2 is installed with a door body 8, and a lock body is installed on the door body 8. The cover body 2, the door body 8 and the heat dissipation base 1 establish a noise reduction box. An opening is opened on the door body 8 for connecting the output end of the micromotor 6 with an external component. The cover body 2 and the heat dissipation base 1 cooperate with each other to build the noise reduction box, and the micromotor 6 is placed in the noise reduction box to achieve noise reduction of the micromotor 6. The support assembly 3 and the placement plate 5 are installed in the cover body 2, and the spur rack 7 installed at the end of the placement plate 5 is meshed with the support assembly 3 to achieve the movement of the placement plate 5. When the micromotor 6 needs to be repaired, the placement plate 5 is moved out of the cover body 2 to achieve the repair of the micromotor 6 without disassembling the cover body 2, simplifying the process of repairing the micromotor 6, not only can the noise of the micromotor 6 be reduced during operation, but also the repair process can be simplified to improve the efficiency of repair.

[0019] In a further embodiment, Figure 2 and Figure 3As shown, the support assembly 3 includes a mounting plate 31, the mounting plate 31 is mounted on the inner wall of the cover body 2, and two groups of support plates 32 are mounted on the side wall of the mounting plate 31, and the support plates 32 are mounted on the side wall of the mounting plate 31 up and down, and a gap is reserved between the support plates 32, and a mounting shaft 33 is longitudinally mounted in the gap between the support plates 32, and a roller 34 is rotatably mounted on the mounting shaft 33, and the roller 34 is meshed and connected with the spur rack 7. Under the cooperation of the spur rack 7 and the roller 34, By making the placement plate 5 move back and forth along the length direction of the spur rack 7, the placement plate 5 can be moved out of or inserted into the cover body 2, and the micromotor 6 can be quickly inspected and repaired. The top surface of the lower support plate 32 is longitudinally installed with a positioning plate 35, and two sets of pulleys 36 are installed on the top of the positioning plate 35. The pulleys 36 abut against the bottom surface of the placement plate 5. Under the cooperation of the positioning plate 35 and the pulleys 36, an upward supporting force is generated for the placement plate 5, which can ensure that the path deviation does not occur during the movement of the placement plate 5.

[0020] In a further embodiment, Figure 4 As shown, the limit assembly 4 includes a fixing plate 41, which is installed on the top surface of the upper support plate 32. The top surface of the fixing plate 41 is provided with an arc-shaped groove 42. The upper support plate 32 is provided with a through hole 43, and the through hole 43 is located on the side of the fixing plate 41. An L-shaped fixing rod 44 is installed in the through hole 43, that is, the L-shaped fixing rod 44 is inserted into the through hole 43 and moves along the axial direction of the through hole 43. The upper support plate 32 is provided with a contraction spring 45, one end of which is connected to the support plate 32, and the other end is connected to the L-shaped fixing rod 44 is bent out and connected, and a limiting hole is provided at the end of the roller 34 close to the upper support plate 32. When one end of the L-shaped fixing rod 44 is placed in the arc-shaped groove 42, the contraction spring 45 is in a stretched state. At this time, the L-shaped fixing rod 44 and the limiting hole of the roller 34 are away from each other. When the L-shaped fixing rod 44 is separated from the arc-shaped groove 42, the contraction spring 45 contracts and rebounds. Under the action of the contraction spring 45, the L-shaped fixing rod 44 moves toward the roller 34 along the axial direction of the through hole 43, and is inserted into the limiting hole in the roller 34 to limit and fix the roller 34.

[0021] In a further embodiment, a plurality of supporting slides are installed in a linear array on the top surface of the heat dissipation base 1, and sliding blocks having the same number as the supporting slides are installed on the bottom surface of the placement plate 5. The sliding blocks are slidably connected to the supporting slides, and with the cooperation between the supporting slides and the sliding blocks, an upward thrust is formed on the placement plate 5 to prevent the placement plate 5 from being deformed during long-term use. Sound insulation cotton is installed on the inner wall of the cover body 2, and the edge of the sound insulation cotton on the same side as the support component 3 is in surface contact with the support component 3.

[0022] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A micromotor noise reduction device, characterized in that: The invention comprises a heat dissipation base (1), wherein a cover body (2) is installed on the top surface of the heat dissipation base (1), wherein the cover body (2) is provided with an opening, wherein a plurality of support assemblies (3) are installed in a linear array on the inner wall of the end of the cover body (2) close to the heat dissipation base (1), wherein two groups of support assemblies (3) close to the opening end of the cover body (2) are both installed with limit assemblies (4), wherein a placement plate (5) is slidably installed in the cover body (2), wherein a micro motor (6) is installed on the placement plate (5), wherein a spur rack (7) is installed on the end of the placement plate (5) close to the support assembly (3), wherein the spur rack (7) is meshingly connected with the support assembly (3), and wherein the placement plate (5) is driven to be removed from or inserted into the cover body (2) along the direction of the spur rack (7) under the cooperation of the spur rack (7) and the support assembly (3), wherein a door body (8) is installed on the side wall of the cover body (2), wherein a lock body is installed on the door body (8), and wherein the cover body (2), the door body (8) and the heat dissipation base (1) form a noise reduction box.

2. A micromotor noise reduction device according to claim 1, characterized in that: The support assembly (3) comprises a mounting plate (31), the mounting plate (31) being mounted on the inner wall of the cover body (2), two groups of support plates (32) being mounted on the side wall of the mounting plate (31), the support plates (32) being placed one above the other with a gap reserved therebetween, a mounting shaft (33) being longitudinally mounted between the support plates (32), a roller (34) being rotatably mounted on the mounting shaft (33), the roller (34) being meshingly connected to the spur rack (7).

3. A micromotor noise reduction device according to claim 2, characterized in that: The support assembly (3) further comprises a positioning plate (35), wherein the positioning plate (35) is longitudinally mounted on the top surface of the support plate (32) below, and two sets of pulleys (36) are mounted on the top of the positioning plate (35), wherein the pulleys (36) abut against the bottom surface of the placement plate (5).

4. A micromotor noise reduction device according to claim 2, characterized in that: The limiting assembly (4) comprises a fixing plate (41), the fixing plate (41) being mounted on the top surface of the upper support plate (32), the fixing plate (41) having an arc-shaped groove (42) on the top surface, the upper support plate (32) having a through hole (43), the through hole (43) being located on the side of the fixing plate (41), an L-shaped fixing rod (44) being mounted in the through hole (43), the upper support plate (32) having a contraction spring (45) being mounted on the upper support plate (32), one end of the contraction spring being connected to the support plate (32), and the other end being connected to the bent end of the L-shaped fixing rod (44), the roller (34) having a limiting hole being disposed at an end portion close to the upper support plate (32), the L-shaped fixing rod (44) being inserted into the limiting hole to limit and fix the roller (34).

5. The micromotor noise reduction device according to claim 1, characterized in that: The top surface of the heat dissipation base (1) is provided with a plurality of support slideways in a linear array, and the bottom surface of the placement plate (5) is provided with sliding blocks having the same number as the support slideways, and the sliding blocks are slidably connected to the support slideways.

6. A micromotor noise reduction device according to claim 1, characterized in that: The inner wall of the cover body (2) is installed with sound insulation cotton, and the edge of the sound insulation cotton located on the same side as the support component (3) is in surface contact with the support component (3).

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