High-precision servo motor housing structure

By using dustproof coatings, internal isolation covers, dust boxes, limit plates, and shock absorbers in the servo motor housing structure, the wear problems caused by vibration and dust in the servo motor are solved, improving the stability and accuracy of the servo motor.

CN224503036UActive Publication Date: 2026-07-14SHENZHEN ZHUOFENG PRECISION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZHUOFENG PRECISION TECH CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing high-precision servo motor housing structures are prone to component wear and deviation during vibration and heat dissipation, and dust entering the interior exacerbates wear and shortens service life.

Method used

The motor housing is coated with dustproof paint on the inner wall, and is equipped with an inner isolation cover and dust box to isolate dust. Limiting tooth plates and shock absorbers are used for fixation and vibration reduction. The motor limiter is designed with an inclination to prevent displacement.

Benefits of technology

It effectively reduces the possibility of dust entering the servo motor, reduces component wear, improves the stability and accuracy of the servo motor, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224503036U_ABST
    Figure CN224503036U_ABST
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Abstract

The utility model discloses a high accuracy servo motor shell structure relates to servo motor technical field, including motor shell cover, flange cover, output shaft, encoder connecting port, motor connecting port and motor limiter, the flange cover fixed mounting is in the front end of motor shell cover, and the front end midpoint rotation of motor shell cover has installed output shaft, the upper end one side fixed mounting of motor shell cover has the encoder connecting port. The utility model discloses when high accuracy servo motor shell structure is in use, and the grid of the limit tooth board and servo motor outside engages and is connected, and the limit tooth board front end of both ends is inclined, and the setting of limit tooth board can be fixed to the position of vibrating servo motor, prevents the deviation of servo motor in the inside of motor shell cover, and can also make servo motor when moving to the center locking according to the setting of limit tooth board inclination, thereby further reinforcing servo motor.
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Description

Technical Field

[0001] This utility model relates to the field of servo motor technology, specifically a high-precision servo motor housing structure. Background Technology

[0002] High-precision servo motors can precisely control speed, position, and torque. They can respond quickly to commands and maintain stability with minimal error. In CNC machine tools, they allow the cutting tool to move along a precise trajectory, ensuring the accuracy of part machining. In robotics, they help perform delicate movements such as grasping and walking. In aerospace, they are used to control the deflection of control surfaces, ensuring the accuracy of aircraft attitude. In high-precision scenarios such as automated equipment and semiconductor manufacturing, they are core components for achieving precise motion control, improving the reliability and stability of the system.

[0003] The existing Chinese utility model patent with publication number CN217984761U discloses a housing structure for a high-precision servo motor. This housing structure includes a first housing and a second housing, with the second housing located inside the first housing. A first fixing rod is fixedly connected to the top of the second housing near the left side. A slider is fixedly connected to the top of the first fixing rod, and a groove matching the slider is provided on the first housing. A second fixing rod is fixedly connected to the top of the slider, and a rack plate is fixedly connected to the top of the second fixing rod. A rack is mounted on the front wall of the rack plate, and a gear meshes on the rack. The bottom of the gear is movably connected to the top of the first housing via a rotating shaft and a bearing. A support rod is fixedly connected to the top of the gear, and a first knob is fixedly connected to the top of the support rod. A first level is fixedly connected to the top of the first housing near the left side, and a second level is fixedly connected to the top of the second housing near the right side.

[0004] Currently, the housing structure of high-precision servo motors in use still has the following problems:

[0005] Because servo motors vibrate during operation, this vibration can cause displacement of the servo motor, which can lead to wear or deviation of mechanical parts. Furthermore, when the servo motor is dissipating heat, airflow can enter the equipment, which can aggravate the wear of internal parts and shorten the service life of the components. Summary of the Invention

[0006] The purpose of this invention is to provide a high-precision servo motor housing structure to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] This utility model provides a high-precision servo motor housing structure, including a motor housing, a flange cover, an output shaft, an encoder connector, a motor connector, and a motor limiter. The flange cover is fixedly installed at the front end of the motor housing, and the output shaft is rotatably installed at the midpoint of the front end of the motor housing. An encoder connector is fixedly installed on one side of the upper end of the motor housing, and a motor connector is installed on one side of the encoder connector. A motor limiter for motor positioning is installed on the inner side of the motor housing.

[0009] Preferably, the motor housing further includes multiple sets of inner isolation covers installed on the inner wall, and a dust collection box is installed at one end of the inner isolation cover, and a handle is fixedly installed at the front end of the dust collection box. The inner wall of the motor housing is coated with dustproof paint.

[0010] Preferably, a limiting toothed plate is installed on one side of the motor limiter, and a shock absorber for motor vibration reduction is installed in the middle of the motor limiter. Fixing plates are installed at equal intervals on both sides of the motor limiter.

[0011] Preferably, the motor housing has a high-precision servo motor inside, and the inner wall of the motor housing has an annular groove, with the motor limiter located annularly inside the annular groove.

[0012] Preferably, the inner isolation cover is equidistantly arranged on one side of the annular groove on the inner wall of the motor housing, and the servo motor is located inside the inner isolation cover. The dust box is located at the bottom of the motor housing, and the handle is located at the bottom front end of the flange cover.

[0013] Preferably, the shock absorber is provided with a damper inside, and the limiting tooth plate is engaged with one side of the servo motor, and the motor limiter is fixedly installed in the circular groove inside the motor housing.

[0014] Preferably, one side of the motor limiter is inclined, and the output shaft is inserted inside the flange cover and rotatably connected to the servo motor at one end.

[0015] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0016] 1. When the high-precision servo motor housing structure is in use, the inner isolation cover isolates the dust on the side of the annular groove, reducing the chance of dust entering the servo motor. At the same time, the inside of the motor housing is made of titanium alloy, and the surface of the titanium alloy is coated with dustproof paint. Dust inside the servo motor can enter the dust box through vibration for centralized treatment. This design with dustproof paint can significantly reduce the possibility of dust contamination inside the servo motor and greatly reduce the possibility of particle wear on motor components.

[0017] 2. When the high-precision servo motor housing structure is in use, the limiting tooth plate and the outer grid of the servo motor are meshed and connected, and the front ends of the limiting tooth plate at both ends are inclined. The setting of the limiting tooth plate can fix the position of the vibrating servo motor and prevent the servo motor from shifting inside the motor housing. The inclined setting of the limiting tooth plate can also lock the servo motor towards the center when it moves, thereby further reinforcing the servo motor. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0019] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

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

[0021] Figure 2 This is a schematic diagram of the internal structure of the motor housing of this utility model;

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

[0023] Figure 4 This is a schematic diagram of the side structure of the motor limiter of this utility model;

[0024] In the picture:

[0025] 1. Motor housing; 11. Inner isolation cover; 12. Dust box; 13. Handle; 2. Flange cover; 3. Output shaft; 4. Encoder connection port; 5. Motor connection port; 6. Motor limit switch; 61. Limiting tooth plate; 62. Shock absorber; 63. Fixing plate. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] Please see Figures 1-4 A high-precision servo motor housing structure includes a motor housing 1, a flange cover 2, an output shaft 3, an encoder connection port 4, a motor connection port 5, and a motor limiter 6. The motor housing 1 also includes multiple sets of inner isolation covers 11 installed on the inner wall, and a dust box 12 is installed at one end of the inner isolation cover 11. A handle 13 is fixedly installed at the front end of the dust box 12. The inner wall of the motor housing 1 is coated with a dustproof coating.

[0028] In this embodiment, the inner isolation cover 11 is equidistantly arranged on one side of the annular groove on the inner wall of the motor housing 1, and the servo motor is located inside the inner isolation cover 11. The dust box 12 is located at the bottom of the motor housing 1, and the handle 13 is located at the bottom front end of the flange cover 2.

[0029] The high-precision servo motor housing structure of this utility model has multiple sets of inner isolation covers 11, which can isolate dust from the outside of the servo motor to a certain extent, reducing the probability of dust entering the servo motor. In addition, the inner wall of the motor housing 1 is coated with dustproof paint. After dust enters the servo motor, the dust on the inner wall will gradually fall off into the dust box 12 through the vibration of the servo motor. By using the dust box 12 to uniformly collect the dust, the wear of dust on motor parts can be reduced.

[0030] For details, please refer to the following: Figure 1 As shown, the flange cover 2 is fixedly installed on the front end of the motor housing 1, and the output shaft 3 is rotatably installed at the midpoint of the front end of the motor housing 1. An encoder connection port 4 is fixedly installed on one side of the upper end of the motor housing 1, and a motor connection port 5 is installed on one side of the encoder connection port 4.

[0031] For details, please refer to the following: Figure 2 and Figure 3 As shown, a motor limiter 6 for motor positioning is installed on the inner side of the motor housing 1. A limiting toothed plate 61 is installed on one side of the motor limiter 6, and a shock absorber 62 for motor vibration reduction is installed in the middle of the motor limiter 6. Fixing plates 63 are installed at equal intervals on both sides of the motor limiter 6.

[0032] In this embodiment, the motor housing 1 has a high-precision servo motor inside, and the inner wall of the motor housing 1 has an annular groove. The motor limiter 6 is located inside the annular groove. The shock absorber 62 has a damper inside, and the limiting tooth plate 61 is meshed with one side of the servo motor. The motor limiter 6 is fixedly installed in the annular groove inside the motor housing 1. One side of the motor limiter 6 is inclined, and the output shaft 3 is inserted into the flange cover 2 and rotates with the servo motor at one end.

[0033] The high-precision servo motor housing structure of this utility model features a limiting toothed plate 61 fixedly installed on the side of the servo motor. The toothed plate secures the outer side of the servo motor, resulting in a compact and reliable structure that effectively limits the servo motor and prevents it from deviating. Simultaneously, the motor limiters 6 at both ends of the motor housing 1 are inclined, ensuring that the horizontally moving servo motor can be clamped and its midpoint fixed regardless of forward or backward movement, greatly improving the accuracy of the servo motor during operation. Furthermore, the motor limiters 6 are equipped with shock absorbers 62, which reduce motor vibration inside the motor housing 1, enhancing the stability of the servo motor during operation.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A high-precision servo motor housing structure, comprising a motor housing sleeve (1), a flange cover (2), an output shaft (3), an encoder connection port (4), a motor connection port (5), and a motor limiter (6), characterized in that: The flange cover (2) is fixedly installed at the front end of the motor housing (1), and the output shaft (3) is rotatably installed at the midpoint of the front end of the motor housing (1). An encoder connection port (4) is fixedly installed on one side of the upper end of the motor housing (1), and a motor connection port (5) is installed on one side of the encoder connection port (4). A motor limiter (6) for motor limiting is installed on the inner side of the motor housing (1).

2. The high-precision servo motor housing structure according to claim 1, characterized in that: The motor housing (1) also includes multiple sets of inner isolation covers (11) installed on the inner wall, and a dust box (12) is installed at one end of the inner isolation cover (11), and a handle (13) is fixedly installed at the front end of the dust box (12). The inner wall of the motor housing (1) is coated with dustproof paint.

3. The high-precision servo motor housing structure according to claim 1, characterized in that: A limiting toothed plate (61) is installed on one side of the motor limiter (6), and a shock absorber (62) for motor vibration reduction is installed in the middle of the motor limiter (6). Fixed insert plates (63) are installed at equal intervals on both sides of the motor limiter (6).

4. The high-precision servo motor housing structure according to claim 2, characterized in that: The motor housing (1) has a high-precision servo motor inside, and the inner wall of the motor housing (1) is provided with an annular groove, and the motor limiter (6) is located in the annular groove.

5. The high-precision servo motor housing structure according to claim 2, characterized in that: The inner isolation cover (11) is equidistantly arranged on one side of the annular groove on the inner wall of the motor housing (1), and the servo motor is located inside the inner isolation cover (11). The dust box (12) is located at the bottom of the motor housing (1), and the handle (13) is located at the bottom front end of the flange cover (2).

6. The high-precision servo motor housing structure according to claim 3, characterized in that: The shock absorber (62) is equipped with a damper inside, and the limiting tooth plate (61) is meshed with the side of the servo motor, and the motor limiter (6) is fixedly installed in the circular groove inside the motor housing (1).

7. The high-precision servo motor housing structure according to claim 1, characterized in that: The motor limiter (6) is inclined on one side, and the output shaft (3) is inserted into the inside of the flange cover (2) and rotatedly connected to the servo motor at one end.