A noise-reducible servo motor
By setting a soundproof cover and a vacuum chamber outside the servo motor, and utilizing rubber pads, rubber sleeves, and fan blade structures, the problem of noise and vibration transmission of the servo motor is solved, achieving the effects of noise reduction and temperature reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SHIFAN TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-26
AI Technical Summary
Existing servo motors generate significant noise and vibration during operation, which can easily be transmitted to connected devices, leading to noise pollution and equipment vibration.
It adopts a soundproof cover and vacuum chamber structure, combined with rubber pads and rubber sleeves to reduce noise and vibration, maintains a vacuum state through a vacuum pump, and uses fan blades to circulate air for cooling.
It effectively reduces the noise and vibration of the servo motor during operation, reduces interference with the equipment, and improves the quietness and stability of the working environment.
Smart Images

Figure CN224418583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of servo motor technology, and more specifically, to a noise-reducing servo motor. Background Technology
[0002] A servo motor is a motor that controls the operation of mechanical components in a servo system; it is a type of auxiliary motor with indirect speed control. Servo motors enable highly accurate speed and position control, converting voltage signals into torque and speed to drive the controlled object. Servo motors have three significant characteristics: high starting torque, wide operating range, and no self-rotation.
[0003] Servo motors generate noise and vibration during operation. Existing servo motors have a metal casing, which has poor noise reduction effect. In addition, the vibration of the servo motor will be transmitted to the connected device, which may cause the corresponding device to vibrate and generate noise. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the problems existing in the prior art, this utility model provides a noise-reducing servo motor to solve the technical problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing servo motor, comprising a servo motor body, a soundproof cover fitted over the servo motor body, a vacuum chamber inside the soundproof cover, multiple fixing blocks fixedly connected inside the vacuum chamber, each fixing block having threaded holes, a soundproof box connected to the side end of the soundproof cover by multiple screws, the screws being screwed into the multiple threaded holes, the soundproof box having multiple vent holes communicating with the vacuum chamber, a sealing gasket between the soundproof box and the soundproof cover, and an air extraction pipe connected to the side end of the soundproof box, with a valve installed on the air extraction pipe. By evacuating the interior of the soundproof box and the soundproof cover, creating a vacuum state inside the soundproof box and the soundproof cover, the noise reduction effect can be effectively achieved, reducing the noise generated by the servo motor during operation.
[0008] The present invention is further provided with a rubber pad on the side end of the servo motor body, which plays a role in relieving vibration and reducing the transmission of vibration from the servo motor body to the corresponding installation equipment.
[0009] The present invention is further configured such that a T-shaped tube is inserted into the mounting groove on the servo motor body, and a rubber sleeve is provided on the outside of the T-shaped tube to reduce the effect of the servo motor body transmitting vibration to the bolts used to mount the servo motor body.
[0010] The present invention is further configured such that a connecting shaft is fixedly connected to the rotating shaft side end of the servo motor body, the connecting shaft extends to the rear side of the servo motor body, and multiple fan blades are fixedly connected to the connecting shaft, so that air circulates around the servo motor by rotating the fan blades.
[0011] The present invention is further configured such that multiple air inlets are evenly arranged on the soundproof box, and an exhaust pipe is fixedly connected to the soundproof cover, which facilitates the airflow outside the servo motor body and cools the servo motor.
[0012] The present invention is further configured such that a dustproof mesh is fixedly connected inside each of the multiple air inlets to prevent dust from entering the interior of the servo motor body through the air inlets.
[0013] The present invention is further configured such that sound-absorbing cotton is fixedly connected to the inner wall of the soundproof cover and the end of the soundproof box near the servo motor body, so as to play the role of sound absorption and noise reduction.
[0014] The present invention is further configured such that multiple support bars are fixedly connected inside the vacuum cavity, and multiple air vents are provided on each of the multiple support bars to provide support.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a noise-reducing servo motor, which has the following beneficial effects:
[0017] 1. Open the valve and connect the vacuum pump to the air extraction pipe to evacuate the inside of the soundproof box and soundproof cover. This will create a vacuum inside the soundproof box and soundproof cover, which can effectively reduce noise and reduce the noise generated by the servo motor.
[0018] 2. By setting a rubber pad on the side of the servo motor body, the servo motor body is separated from the corresponding equipment. The servo motor is installed and fixed by passing a T-tube through the inside of the servo motor body and then passing a bolt through the inside of the T-tube. The rubber sleeve prevents the bolt from directly contacting the servo motor body. The rubber pad and rubber sleeve have a vibration reduction effect, which can reduce the vibration transmitted from the servo motor body to the equipment and bolts.
[0019] 3. During the operation of the servo motor body, the servo motor body drives the connecting shaft and multiple fan blades to rotate. The rotation of the multiple fan blades allows external air to enter the interior of the soundproof cover through multiple air inlets and be discharged through multiple exhaust pipes, so that the air circulates around the servo motor body and has a cooling effect on the servo motor body. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the front structure of a noise-reducing servo motor according to the present invention.
[0021] Figure 2 This is a schematic diagram of the side structure of a noise-reducing servo motor according to the present invention.
[0022] Figure 3 This is a schematic diagram of the connection between the servo motor body, connecting shaft, multiple fan blades and soundproof cover in this utility model.
[0023] Figure 4 This is a schematic diagram of the connection between the sound insulation box, sound-absorbing cotton, and sealing gasket in this utility model;
[0024] Figure 5 This is a schematic diagram of the connection between the T-shaped tube and the rubber sleeve in this utility model.
[0025] In the diagram: 1. Servo motor body; 2. Soundproof cover; 3. Vacuum chamber; 4. Fixing block; 5. Threaded hole; 6. Screw; 7. Soundproof box; 8. Vent hole; 9. Sealing gasket; 10. Extraction pipe; 11. Valve; 12. Rubber gasket; 13. T-tube; 14. Rubber sleeve; 15. Connecting shaft; 16. Fan blade; 17. Air inlet; 18. Exhaust pipe; 19. Dustproof net; 20. Sound-absorbing cotton; 21. Support bar; 22. Vent hole. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0029] Please see Figures 1-5 A noise-reducing servo motor includes a servo motor body 1, a soundproof cover 2 covering the outside of the servo motor body 1, a vacuum chamber 3 inside the soundproof cover 2, multiple support bars 21 fixedly connected inside the vacuum chamber 3, each of the support bars 21 having multiple vents 22 for support, multiple fixing blocks 4 fixedly connected inside the vacuum chamber 3, each of the fixing blocks 4 having threaded holes 5, a soundproof box 7 connected to the side end of the soundproof cover 2 by multiple screws 6, sound-absorbing cotton 20 fixedly connected to the inner side wall of the soundproof cover 2 and the end of the soundproof box 7 near the servo motor body 1 for sound absorption and noise reduction, the multiple screws 6 being screwed into the multiple threaded holes 5, the soundproof box 7 having multiple vents 8 communicating with the vacuum chamber 3, a sealing gasket 9 between the soundproof box 7 and the soundproof cover 2, and an exhaust pipe 10 connected to the side end of the soundproof box 7, with a valve 11 installed on the exhaust pipe 10.
[0030] Specifically, by opening valve 11 and connecting it to vacuum pipe 10 via vacuum pump, a vacuum is drawn inside soundproof box 7 and soundproof cover 2, so that the inside of soundproof box 7 and soundproof cover 2 is in a vacuum state, which can effectively achieve the effect of sound insulation and noise reduction, and can reduce the noise generated when the servo motor is working.
[0031] Please see Figure 1 , Figure 2 and Figure 5 A rubber pad 12 is provided on the side of the servo motor body 1 to relieve vibration and reduce the transmission of vibration from the servo motor body 1 to the corresponding installation equipment. A T-tube 13 is inserted into the mounting groove on the servo motor body 1, and a rubber sleeve 14 is provided on the outside of the T-tube 13 to reduce the transmission of vibration from the servo motor body 1 to the bolts used to install the servo motor body 1.
[0032] Specifically, by setting a rubber pad 12 on the side of the servo motor body 1, the servo motor body 1 is separated from the corresponding equipment by the rubber pad 12. The servo motor is installed and fixed by passing a T-shaped tube 13 through the inside of the servo motor body 1 and then passing a bolt through the inside of the T-shaped tube 13. The rubber sleeve 14 prevents the bolt from directly contacting the servo motor body 1. The rubber pad 12 and the rubber sleeve 14 have a vibration reduction effect, which can reduce the transmission of vibration from the servo motor body 1 to the equipment and bolts.
[0033] Please see Figure 2 and Figure 3A connecting shaft 15 is fixedly connected to the side of the rotating shaft on the servo motor body 1. The connecting shaft 15 extends to the rear side of the servo motor body 1. Multiple fan blades 16 are fixedly connected to the connecting shaft 15. The rotation of the fan blades 16 allows air to circulate around the servo motor. Multiple air inlets 17 are evenly arranged on the soundproof box 7. An exhaust pipe 18 is fixedly connected to the soundproof cover 2 to facilitate the air circulation outside the servo motor body 1 and cool the servo motor. Dustproof nets 19 are fixedly connected inside the multiple air inlets 17 to prevent dust from entering the interior of the servo motor body 1 through the air inlets 17.
[0034] Specifically, during the operation of the servo motor body 1, the servo motor body 1 drives the connecting shaft 15 and multiple fan blades 16 to rotate. The rotation of the multiple fan blades 16 allows external air to enter the interior of the soundproof cover 2 through multiple air inlets 17 and be discharged through multiple exhaust pipes 18, so that the air circulates around the servo motor body 1 and has a cooling effect on the servo motor body 1.
[0035] In summary, when using the overall equipment:
[0036] The soundproof box 7 is fixed to the soundproof cover 2 by multiple screws 6. The sealing gasket 9 ensures a sealed connection between the soundproof box 7 and the soundproof cover 2. The valve 11 is opened, and the vacuum pump is connected to the air extraction pipe 10 to evacuate the inside of the soundproof box 7 and the soundproof cover 2, so that the inside of the soundproof box 7 and the soundproof cover 2 is in a vacuum state. After the vacuuming is completed, the valve 11 is closed. With the soundproof box 7 and the soundproof cover 2 in a vacuum state and with the sound-absorbing cotton 20 fixedly connected to both the soundproof box 7 and the soundproof cover 2, the noise reduction effect can be effectively achieved.
[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components. For connections between two parts, welding, bolt and nut connections, bolt or screw connections, or other known connection methods can be selected according to the actual situation, which will not be elaborated here. Whenever a fixed connection is mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A noise-reducing servo motor, comprising a servo motor body (1), characterized in that: The servo motor body (1) is covered with a soundproof cover (2). The soundproof cover (2) is equipped with a vacuum chamber (3). Multiple fixing blocks (4) are fixedly connected inside the vacuum chamber (3). Each fixing block (4) has a threaded hole (5). The side end of the soundproof cover (2) is connected to a soundproof box (7) by multiple screws (6). The screws (6) are screwed into the inside of the multiple threaded holes (5). The soundproof box (7) is equipped with multiple vent holes (8). The multiple vent holes (8) are connected to the vacuum chamber (3). A sealing gasket (9) is provided between the soundproof box (7) and the soundproof cover (2). The side end of the soundproof box (7) is connected to a suction pipe (10). A valve (11) is installed on the suction pipe (10).
2. The noise-reducing servo motor according to claim 1, characterized in that: A rubber pad (12) is provided on the side of the servo motor body (1).
3. A noise-reducing servo motor according to claim 1, characterized in that: A T-tube (13) is inserted into the mounting slot on the servo motor body (1), and a rubber sleeve (14) is provided on the outside of the T-tube (13).
4. A noise-reducing servo motor according to claim 1, characterized in that: A connecting shaft (15) is fixedly connected to the rotating shaft side of the servo motor body (1). The connecting shaft (15) extends to the rear side of the servo motor body (1). Multiple fan blades (16) are fixedly connected to the connecting shaft (15).
5. A noise-reducing servo motor according to claim 1, characterized in that: Multiple air inlets (17) are evenly arranged on the soundproof box (7), and an exhaust pipe (18) is fixedly connected to the soundproof cover (2).
6. A noise-reducing servo motor according to claim 5, characterized in that: Each of the multiple air inlets (17) is fixedly connected with a dustproof net (19).
7. A noise-reducing servo motor according to claim 1, characterized in that: The inner wall of the soundproof cover (2) and the end of the soundproof box (7) near the servo motor body (1) are both fixedly connected with sound-absorbing cotton (20).
8. A noise-reducing servo motor according to claim 1, characterized in that: The vacuum chamber (3) is fixedly connected to a plurality of support bars (21), and each of the support bars (21) is provided with a plurality of air vents (22).