Sealing structure of a reduction motor

Abstract

This utility model relates to the field of motor technology, specifically a sealing structure for a geared motor. It includes a fixed base, a rotating connecting element, a housing, an end cover, and a sealing element. The fixed base has a connecting step and a sealing abutment platform. The rotating connecting element is mounted on the connecting step and connects the fixed base to the housing. The end cover is mounted on the housing, and its inner diameter is provided with a sealing groove opposite to the sealing abutment platform. One end of the sealing element is located within the sealing groove, and the other end is in sealing contact with the sealing abutment platform. This utility model achieves a stable connection between the fixed base and the housing through the connecting step and the sealing abutment platform, with the rotating connecting element mounted on the connecting step. The cooperation between the sealing abutment platform, the sealing groove on the end cover, and the sealing element forms a reliable sealing barrier, greatly reducing the intrusion of external dust, moisture, and other impurities into the geared motor, effectively protecting the precision components inside the motor and extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a sealing structure for a geared motor. Background Technology

[0002] As a key device for converting electrical energy into mechanical energy, the electric motor plays an indispensable role in many fields such as industrial production, transportation, and household appliances. Geared motors, which integrate a speed reducer into the motor base, can effectively reduce speed and increase torque, meeting the needs of many applications with specific power output requirements. However, existing electric motors and geared motors still have some shortcomings. In terms of energy consumption, the efficiency of some motors needs improvement, which not only wastes energy but also increases operating costs, contradicting the current trend of energy conservation and environmental protection. Regarding stability, some motors are prone to failure under prolonged continuous operation or complex working conditions, leading to equipment downtime and affecting production efficiency and normal operation.

[0003] The existing geared motors have an insufficiently compact structural design and inadequate internal sealing, making them susceptible to damage from dust, moisture, and other impurities entering the motor during use. Therefore, improvements are needed to the existing geared motor sealing structure. Utility Model Content

[0004] To address the aforementioned issues, this invention utilizes a connecting step and a sealing abutment platform. A rotating connecting element is mounted on the connecting step, achieving a stable connection between the fixed base and the outer casing. The cooperation between the sealing abutment platform, the sealing groove on the end cover, and the sealing element forms a reliable sealing barrier, significantly reducing the intrusion of external dust, moisture, and other impurities into the geared motor. This effectively protects the precision components inside the motor and extends its service life.

[0005] The technical solution adopted by this utility model is: a sealing structure for a geared motor, including a fixed base, a rotating connecting element, a housing, an end cover, and a sealing element. The fixed base is provided with a connecting step and a sealing abutment platform. The rotating connecting element is disposed on the connecting step and is used to connect the fixed base and the housing. The end cover is disposed on the housing, and a sealing groove is provided with its inner diameter opposite to the sealing abutment platform. One end of the sealing element is disposed in the sealing groove, and the other end is sealed and abuts against the sealing abutment platform.

[0006] A further improvement to the above solution is that a fixed bracket is provided below the fixed base, a transmission cavity is provided between the fixed bracket and the fixed base, a reduction module is provided in the transmission cavity, and the reduction module is connected to the outer shell in a transmission connection.

[0007] A further improvement to the above solution is that a fixed step is provided inside the outer shell, and a transmission connection bracket is provided on the fixed step. The transmission connection bracket is connected to the reduction module, and the reduction module is used to drive the transmission connection bracket and the outer shell to rotate.

[0008] A further improvement to the above solution is that the wall surface of the fixed step is provided with a sealing groove, and a sealing ring is provided on the sealing groove. The inner diameter of the sealing ring is in sealing contact with the outer diameter of the transmission connection bracket.

[0009] A further improvement to the above solution is that one end of the transmission connection bracket is provided with a transmission step, which is used to connect the outer diameter of the rotating connection element.

[0010] A further improvement to the above solution is that the outer shell is provided with a driving cavity, the driving cavity is located below the fixed base, the driving cavity is provided with a driving module, the fixed end of the driving module is provided on the fixed bracket, and the driving end is connected to the reduction module to drive the reduction module to transmit power.

[0011] A further improvement to the above scheme is that a sealing step is provided at the opening of the driving cavity, and a sealing cover is provided on the sealing step, the sealing cover being used to seal the driving cavity.

[0012] A further improvement to the above solution is that the end cap includes a fixing outer ring and a sealing inner ring, the outer periphery of the outer shell is provided with connecting ribs, the fixing outer ring is provided on the connecting ribs, and the sealing groove is provided on the inner diameter of the sealing inner ring.

[0013] A further improvement to the above solution is that the connecting rib is provided with an assembly and installation hole, and the fixing outer ring is provided with a through hole, the through hole being opposite to the assembly and installation hole.

[0014] A further improvement to the above solution is that the sealing element includes a sealing outer lip and a sealing inner lip. The sealing outer lip has a U-shaped cross-section and is disposed in a sealing groove. The sealing inner lip is provided with a sealing plane, and the sealing plane is in sealing contact with the sealing abutment platform.

[0015] The beneficial effects of this utility model are:

[0016] Compared to existing geared motors, this invention achieves a stable connection between the fixed base and the outer casing by using a connecting step and a sealing contact platform, with the rotating connecting element mounted on the connecting step. The cooperation between the sealing contact platform, the sealing groove on the end cover, and the sealing element forms a reliable sealing barrier, greatly reducing the intrusion of external dust, moisture, and other impurities into the geared motor, effectively protecting the precision components inside and extending the motor's service life. One end of the sealing element is securely set in the sealing groove, while the other end is tightly sealed against the sealing contact platform, ensuring that even under vibration, impact, or other external forces during motor operation, the sealing element maintains a good seal and will not easily shift or loosen, ensuring the durability and reliability of the sealing performance. This sealing element configuration allows for easy and quick replacement of the sealing element without extensive disassembly of the entire geared motor, requiring only a simple operation of the end cover. This reduces maintenance costs and downtime, improving equipment efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the motor sealing mechanism of this utility model;

[0018] Figure 2 for Figure 1 An exploded view of the sealing mechanism of the central motor from another perspective;

[0019] Figure 3 for Figure 1 A front view schematic diagram of the sealing mechanism of the motor.

[0020] Figure 4 for Figure 3 Sectional view of AA.

[0021] Explanation of reference numerals in the attached drawings: Fixed base 1, Connecting step 11, Sealing abutment platform 12, Fixed bracket 13, Transmission cavity 131, Reduction module 132, Rotary connecting element 2, Housing 3, Fixed step 31, Sealing groove 311, Transmission connecting bracket 32, Transmission step 321, Drive cavity 33, Drive module 331, Sealing step 332, Sealing cover 333, Connecting rib 34, Assembly mounting hole 341, End cover 4, Sealing groove 41, Fixed outer ring 42, Through hole 421, Sealing inner ring 43, Sealing element 5, Sealing outer lip 51, Sealing inner lip 52. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-4 As shown, in one embodiment of this utility model, a sealing structure for a geared motor is disclosed, comprising a fixed base 1, a rotary connecting element 2, a housing 3, an end cap 4, and a sealing element 5. The fixed base 1 is provided with a connecting step 11 and a sealing abutment platform 12. The rotary connecting element 2 is disposed on the connecting step 11 and is used to connect the fixed base 1 to the housing 3. The end cap 4 is disposed on the housing 3, and a sealing groove 41 is provided with its inner diameter opposite to the sealing abutment platform 12. One end of the sealing element 5 is disposed in the sealing groove 41, and the other end is sealed and abuts against the sealing abutment platform 12. In this embodiment, the fixed base 1 and the housing 3 are stably connected by the connecting step 11 and the sealing abutment platform 12, with the rotary connecting element 2 mounted on the connecting step 11. The cooperation between the sealing abutment platform 12, the sealing groove 41 on the end cap 4, and the sealing element 5 forms a reliable sealing barrier, greatly reducing the intrusion of external dust, moisture, and other impurities into the geared motor, effectively protecting the precision components inside the motor, and extending the service life of the motor. One end of the sealing element 5 is securely set within the sealing groove 41, while the other end is tightly sealed against the sealing contact platform 12. This ensures that even under external forces such as vibration and impact during motor operation, the sealing element 5 maintains a good seal and will not easily shift or loosen, guaranteeing the durability and reliability of the sealing performance. The way the sealing element 5 is positioned allows for easy and quick replacement of the sealing element 5 without extensive disassembly of the entire geared motor. Only a simple operation of the end cover 4 is required, reducing maintenance costs and downtime, and improving equipment efficiency.

[0025] A fixed bracket 13 is provided below the fixed base 1, and a transmission cavity 131 is provided between the fixed bracket 13 and the fixed base 1. A reduction module 132 is provided inside the transmission cavity 131, and the reduction module 132 is driven to the outer shell 3. Specifically, a fixed step 31 is provided inside the outer shell 3, and a transmission connection bracket 32 ​​is provided on the fixed step 31. The transmission connection bracket 32 ​​is driven to the reduction module 132, and the reduction module 132 is used to drive the transmission connection bracket 32 ​​and the outer shell 3 to rotate. In this embodiment, the fixed bracket 13 is provided below the fixed base 1 to form a transmission cavity 131, and the internal reduction module 132 is driven to the outer shell 3, making the power transmission of the reduction motor more stable and efficient. By driving the transmission connection bracket 32 ​​and the outer shell 3 to rotate through the reduction module 132, the components work together, effectively reducing the sealing failure problem that may be caused by component shaking or misalignment, greatly improving the overall stability of the sealing mechanism, and thus improving the sealing performance. The cooperation between the fixed step 31 and the transmission connection bracket 32 ​​provides precise positioning and reliable support for the transmission between the reduction module 132 and the housing 3, ensuring that the sealing structure maintains good fit and sealing performance during motor operation. This avoids problems such as increased gaps and leakage risk caused by unstable connections in traditional structures. It also helps reduce the intrusion of external dust, moisture, and other impurities, extending the service life of the geared motor sealing mechanism.

[0026] A sealing groove 311 is provided on the wall surface of the fixed step 31, and a sealing ring is provided on the sealing groove 311. The inner diameter of the sealing ring seals against the outer diameter of the transmission connection bracket 32. In this embodiment, during operation, the geared motor faces the risk of intrusion of impurities such as dust and moisture. The sealing contact of the sealing ring can effectively block these impurities, preventing them from entering the motor, thereby protecting the delicate transmission components and electrical components inside the motor and extending the service life of the motor. It also helps maintain a stable lubrication environment inside the motor. Furthermore, it avoids lubricating oil leakage, ensures good lubrication of transmission components, reduces wear, and lowers the failure rate caused by poor lubrication.

[0027] One end of the transmission connecting bracket 32 ​​is provided with a transmission step 321, which is used to connect the outer diameter of the rotary connecting element 2. In this embodiment, it firstly plays a role in precise positioning in terms of structure, ensuring the accuracy of the installation position of the rotary connecting element 2. From a sealing perspective, the tight connection greatly improves the sealing performance. It can effectively block the intrusion of external dust, moisture and other impurities, preventing these impurities from entering the geared motor and affecting the motor performance, thus extending the motor's service life. It maintains the stability of the internal lubrication environment of the motor, ensuring the smoothness and efficiency of the motor's operation.

[0028] The outer casing 3 is provided with a drive cavity 33, which is located below the fixed base 1. A drive module 331 is disposed within the drive cavity 33. The fixed end of the drive module 331 is disposed on the fixed bracket 13, and the drive end is connected to the reduction module 132 to drive the reduction module 132 for transmission. Specifically, a sealing step 332 is provided at the opening of the drive cavity 33, and a sealing cover 333 is provided on the sealing step 332 for sealing the drive cavity 33. In this embodiment, the layout of the drive cavity 33 located below the fixed base 1 can utilize gravity to reduce the possibility of dust, moisture, and other impurities directly falling into the cavity. The arrangement of the fixed end of the drive module 331 being disposed on the fixed bracket 13 and the drive end being connected to the reduction module 132 ensures the stability and efficiency of the transmission, while making the overall structure compact and reasonable, reducing the risk of seal failure due to component shaking. The sealing step 332 and the sealing cover 333 improve the sealing performance. The sealing step 332 provides a precise positioning and sealing base. The sealing cover 333 is installed on it, which can effectively prevent external contaminants from entering the drive cavity 33, avoid them from corroding the drive module 331, and extend the service life of the drive module 331.

[0029] The end cap 4 includes a fixing outer ring 42 and a sealing inner ring 43. A connecting rib 34 is provided on the outer periphery of the outer shell 3. The fixing outer ring 42 is disposed on the connecting rib 34, and the sealing groove 41 is disposed on the inner diameter of the sealing inner ring 43. Specifically, the connecting rib 34 is provided with an assembly hole 341, and the fixing outer ring 42 is provided with a through hole 421, which corresponds to the assembly hole 341. In this embodiment, the fixing outer ring 42 is disposed on the connecting rib 34 on the outer periphery of the outer shell 3. The presence of the connecting rib 34 not only enhances the stability of the connection between the end cap 4 and the outer shell 3, but also ensures that the assembly hole 341 corresponds to the through hole 421 of the fixing outer ring 42, allowing for precise positioning and tight connection during installation, effectively preventing the end cap 4 from loosening during motor operation. The sealing inner ring 43 and the sealing groove 41 on its inner diameter improve the sealing performance of the geared motor. The sealing groove 41 can be adapted to corresponding sealing components, such as rubber sealing rings. When the motor is running, it can effectively block the intrusion of external impurities such as dust and moisture, preventing them from entering the motor and damaging key components such as motor windings and bearings, thereby extending the service life of the motor. It helps maintain a clean environment and stable operating temperature inside the motor, improving the overall performance and reliability of the motor.

[0030] The sealing element 5 includes an outer sealing lip 51 and an inner sealing lip 52. The outer sealing lip 51 has a U-shaped cross-section and is disposed within the sealing groove 41. The inner sealing lip 52 has a sealing plane, which seals against the sealing contact platform 12. In this embodiment, the outer sealing lip 51, with its U-shaped cross-section and placement within the sealing groove 41, effectively blocks the intrusion of external dust, moisture, and impurities. The U-shaped structure has good elasticity and adaptability, allowing it to tightly fit the sealing groove 41, forming a solid first line of defense and reducing the risk of wear and corrosion of internal motor components due to external contaminants. The sealing plane of the inner sealing lip 52 seals against the sealing contact platform 12, improving sealing performance. The precise and tight fit between the sealing plane and the contact platform reduces leakage channels, significantly improving the internal sealing of the geared motor and ensuring that lubricating oil and other media do not leak. This maintains a good lubrication environment inside the motor, ensuring normal operation, extending its service life, and improving overall operational stability and reliability. It reduces the probability of failures caused by leakage, optimizes the working environment of the geared motor, improves the overall performance and stability of the equipment, and ensures that it can operate reliably under various working conditions.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sealing structure for a geared motor, characterized in that: The device includes a fixed base, a rotating connecting element, a housing, an end cap, and a sealing element. The fixed base is provided with a connecting step and a sealing abutment platform. The rotating connecting element is disposed on the connecting step and is used to connect the fixed base and the housing. The end cap is disposed on the housing and has a sealing groove provided with its inner diameter opposite to the sealing abutment platform. One end of the sealing element is disposed in the sealing groove and the other end is sealed and abutted against the sealing abutment platform.

2. The sealing structure of the geared motor according to claim 1, characterized in that: A fixed bracket is provided below the fixed base, and a transmission cavity is provided between the fixed bracket and the fixed base. A reduction module is provided in the transmission cavity, and the reduction module is connected to the outer shell in a transmission connection.

3. The sealing structure of the geared motor according to claim 2, characterized in that: The housing has a fixed step inside, and a transmission connection bracket is installed on the fixed step. The transmission connection bracket is connected to the reduction module, and the reduction module is used to drive the transmission connection bracket and the housing to rotate.

4. The sealing structure of the geared motor according to claim 3, characterized in that: The wall surface of the fixed step is provided with a sealing groove, and a sealing ring is provided on the sealing groove. The inner diameter of the sealing ring is in sealing contact with the outer diameter of the transmission connection bracket.

5. The sealing structure of the geared motor according to claim 3, characterized in that: One end of the transmission connection bracket is provided with a transmission step, which is used to connect the outer diameter of the rotating connection element.

6. The sealing structure of the geared motor according to claim 2, characterized in that: The outer shell is provided with a drive cavity, which is located below the fixed base. A drive module is provided inside the drive cavity. The fixed end of the drive module is provided on the fixed bracket, and the drive end is connected to the reduction module to drive the reduction module to transmit power.

7. The sealing structure of the geared motor according to claim 6, characterized in that: A sealing step is provided at the opening of the drive cavity, and a sealing cover is provided on the sealing step. The sealing cover is used to seal the drive cavity.

8. The sealing structure of the geared motor according to claim 1, characterized in that: The end cap includes a fixing outer ring and a sealing inner ring. The outer periphery of the outer shell is provided with connecting ribs, the fixing outer ring is disposed on the connecting ribs, and the sealing groove is disposed on the inner diameter of the sealing inner ring.

9. The sealing structure of the geared motor according to claim 8, characterized in that: The connecting rib is provided with an assembly and installation hole, and the fixing outer ring is provided with a through hole, which is opposite to the assembly and installation hole.

10. The sealing structure of the geared motor according to claim 1, characterized in that: The sealing element includes an outer sealing lip and an inner sealing lip. The outer sealing lip has a U-shaped cross-section and is disposed within a sealing groove. The inner sealing lip has a sealing plane, which abuts against the sealing contact platform.

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