Motor front end cover assembly supporting extended oil seal
By designing a multi-stage extended oil seal and sealing ring motor front cover assembly, the problem of contaminants entering the motor under harsh environments was solved, achieving increased reliability and service life of the motor under harsh operating conditions.
Patent Information
- Application Number
- CN202520395458.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-07
AI Technical Summary
In harsh environments, wear of the oil seal in the existing motor front cover assembly leads to contaminants entering the motor, affecting its reliability and service life.
Design a motor front end cover assembly that supports extended oil seals. By cooperating with multi-stage extended mounting covers and sealing rings, the number of oil seal layers is increased. High-temperature grease-filled cavities and hexagonal galvanized screws are used for connection to achieve multi-stage sealing and improve protection performance.
Improve motor reliability and protection redundancy under harsh operating conditions, extend motor life, enhance equipment applicability, and optimize costs.
Smart Images

Figure CN223872122U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical manufacturing technology, and in particular relates to a motor front end cover assembly that supports extended oil seals. Background Technology
[0002] The front cover of a motor is an important component in the motor structure. Located at the front of the motor, it is mainly used to seal the front of the motor housing, protect the internal components of the motor, and support and connect other motor components. The front cover is usually closely related to components such as the stator, rotor, bearings, and fan of the motor and has multiple functions.
[0003] In practical applications, existing motor front cover assemblies often encounter harsh operating environments, such as salt spray, high humidity, and high dust. Under these conditions, the motor operates for extended periods, and as the oil seal wears down, contaminants can enter the motor from the oil seal, affecting the motor's reliability and lifespan. To address this issue, we provide a motor front cover assembly that supports extended oil seals. Utility Model Content
[0004] The purpose of this utility model is to provide a motor front end cover assembly that supports extended oil seals. By cooperating with the front end cover body, the first extended mounting cover, the second extended mounting cover, and the third extended mounting cover, the problem of existing single oil seal front end covers being unable to extend the oil seal, and the contaminating medium easily entering the motor through the oil seal under harsh working conditions, thus affecting the service life of the motor, is solved.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.
[0006] This utility model is a motor front end cover assembly that supports an extended oil seal, including a front end cover body, an end cover oil seal installed inside the front end cover body; a first extended mounting cover is provided on one side of the front end cover body, a second extended mounting cover is installed on one side of the first extended mounting cover, and a third extended mounting cover is installed on one side of the second extended mounting cover; a bearing chamber is opened on one side of the front end cover body, and a grease injection channel is opened on the top of the first extended mounting cover.
[0007] The present invention is further configured such that the first extended mounting cover includes a first grease inlet screw, the first grease inlet screw is located on the surface of the first extended mounting cover, a first sealing ring is installed inside the first extended mounting cover, and a first extended oil seal is provided inside the first extended mounting cover.
[0008] The present invention is further configured such that the second extended mounting cover includes a second grease inlet screw, the second grease inlet screw is located on the surface of the second extended mounting cover, a second sealing ring is installed inside the second extended mounting cover, and a second extended oil seal is provided inside the second extended mounting cover.
[0009] The present invention is further configured such that the third extended mounting cover includes a third grease inlet screw, the third grease inlet screw is located on the surface of the third extended mounting cover, a third sealing ring is installed inside the third extended mounting cover, and a third extended oil seal is provided inside the third extended mounting cover.
[0010] The present invention is further configured such that a first hexagonal galvanized screw is provided between the first extended mounting cover and the second extended mounting cover, and the first extended mounting cover and the second extended mounting cover are connected by the first hexagonal galvanized screw.
[0011] The present invention is further configured such that a second hexagonal galvanized screw is provided between the second extension mounting cover and the third extension mounting cover, and the second extension mounting cover and the third extension mounting cover are connected by the second hexagonal galvanized screw.
[0012] The present invention is further configured such that the first, second, and third extended mounting covers are each provided with a high-temperature grease filling cavity, and each of the first, second, and third extended mounting covers is provided with a threaded hole on one side.
[0013] This utility model has the following beneficial effects: By using the front cover body and the first, second, and third extended mounting covers designed in conjunction with it, selective additions can be made according to the site conditions, which greatly improves the applicability of the equipment and optimizes costs. In addition, multiple levels of oil seals can be added, which improves the reliability and protection redundancy of the motor under harsh working conditions, thereby extending the service life of the motor under harsh working conditions. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0015] Figure 1 A perspective view of a motor front end cover assembly that supports an extended oil seal.
[0016] Figure 2 An exploded view of a motor front cover assembly that supports an extended oil seal.
[0017] Figure 3 Right view of the first extended mounting cover in a motor front end cover assembly that supports an extended oil seal.
[0018] Figure 4This is a diagram illustrating the oil seal installation mode of the front cover body in a motor front cover assembly that supports extended oil seals.
[0019] In the attached diagram: 1. Front cover body; 2. End cover oil seal; 3. First extended mounting cover; 4. Second extended mounting cover; 5. Third extended mounting cover; 6. Bearing chamber; 7. Grease channel; 8. First grease inlet set screw; 9. First sealing ring; 10. First extended oil seal; 11. Second grease inlet set screw; 12. Second sealing ring; 13. Second extended oil seal; 14. Third grease inlet set screw; 15. Third sealing ring; 16. Third extended oil seal; 17. First hexagonal galvanized screw; 18. Second hexagonal galvanized screw; 19. High-temperature grease filling cavity; 20. Threaded hole. Detailed Implementation
[0020] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Example 1
[0022] Please see Figure 1-4 This utility model is a motor front end cover assembly that supports an extended oil seal, including a front end cover body 1, an end cover oil seal 2 installed inside the front end cover body 1; a first extended mounting cover 3 is provided on one side of the front end cover body 1, a second extended mounting cover 4 is installed on one side of the first extended mounting cover 3, and a third extended mounting cover 5 is installed on one side of the second extended mounting cover 4; a bearing chamber 6 is opened on one side of the front end cover body 1, and a grease injection channel 7 is opened on the top of the first extended mounting cover 3.
[0023] Specifically: The first expansion mounting cover 3, the second expansion mounting cover 4, and the third expansion mounting cover 5 can be installed sequentially to achieve multi-level expansion of the oil seal. Before installation, each connection surface needs to be sealed by the first sealing ring 9, the second sealing ring 12, and the third sealing ring 15. The number of expansion oil seal levels is multi-level, not limited to four levels.
[0024] Example 2
[0025] Please see Figure 1-4Based on Embodiment 1, the first extended mounting cover 3 includes a first grease inlet screw 8 located on the surface of the first extended mounting cover 3. A first sealing ring 9 is installed inside the first extended mounting cover 3, and a first extended oil seal 10 is provided inside the first extended mounting cover 3. The second extended mounting cover 4 includes a second grease inlet screw 11 located on the surface of the second extended mounting cover 4. A second sealing ring 12 is installed inside the second extended mounting cover 4, and a second extended oil seal 13 is provided inside the second extended mounting cover 4. The third extended mounting cover 5 includes a third grease inlet screw 14 located on the surface of the third extended mounting cover 5, and a third sealing ring 14 is installed inside the third extended mounting cover 5. Circle 15, the third extension mounting cover 5 is provided with a third extension oil seal 16 inside, the first extension mounting cover 3 and the second extension mounting cover 4 are provided with a first hexagonal galvanized screw 17, the first extension mounting cover 3 and the second extension mounting cover 4 are connected by the first hexagonal galvanized screw 17, the second extension mounting cover 4 and the third extension mounting cover 5 are provided with a second hexagonal galvanized screw 18, the second extension mounting cover 4 and the third extension mounting cover 5 are connected by the second hexagonal galvanized screw 18, the first extension mounting cover 3, the second extension mounting cover 4 and the third extension mounting cover 5 are all provided with a high temperature grease filling cavity 19 inside, and the first extension mounting cover 3, the second extension mounting cover 4 and the third extension mounting cover 5 are all provided with a threaded hole 20 on one side.
[0026] Specifically: After the multi-stage expansion connection of the oil seals is completed, high-temperature grease is injected into the high-temperature grease filling cavity 19 between the two oil seals through the grease injection port, further improving the sealing and protection performance of the front cover body 1. The hexagonal galvanized screw is of model M4 x 10, and the size of the thread hole 20 is adapted to the hexagonal galvanized screw. The first expansion mounting cover 3, the second expansion mounting cover 4 and the third expansion mounting cover 5 are all provided with a countersunk hole with a diameter of 5 mm on one side. The first expansion mounting cover 3, the second expansion mounting cover 4 and the third expansion mounting cover 5 are all provided with mounting holes on the top for installing the first grease injection port set screw 8, the second grease injection port set screw 11 and the third grease injection port set screw 14.
[0027] The working principle of this utility model is as follows: the number of oil seal layers can be selectively increased according to the actual on-site usage environment. Before increasing the number of oil seal layers, the first sealing ring 9, the second sealing ring 12 and the third sealing ring 15 are installed accordingly. Then, the first expansion mounting cover 3, the second expansion mounting cover 4 and the third expansion mounting cover 5 are installed in sequence using the first hexagonal galvanized screw 17 and the second hexagonal galvanized screw 18. This greatly improves the applicability of the equipment and optimizes costs. It also allows for multiple levels of oil seals, improving the reliability and protection redundancy of the motor under harsh working conditions, thereby extending the service life of the motor under harsh working conditions.
[0028] All standard parts used in this invention can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through the control unit. The control circuit of the control unit can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, the control method and circuit connection will not be explained in detail in this invention.
[0029] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.
Claims
1. A motor front cover assembly supporting an extended oil seal, comprising a front cover body (1), characterized in that: An end cap oil seal (2) is installed inside the front end cap body (1); A first extended mounting cover (3) is provided on one side of the front cover body (1), a second extended mounting cover (4) is installed on one side of the first extended mounting cover (3), and a third extended mounting cover (5) is installed on one side of the second extended mounting cover (4). The front cover body (1) has a bearing chamber (6) on one side, and the first extended mounting cover (3) has a grease injection channel (7) on the top.
2. The motor front end cover assembly supporting extended oil seal according to claim 1, characterized in that: The first extended mounting cover (3) includes a first grease inlet screw (8), which is located on the surface of the first extended mounting cover (3). A first sealing ring (9) is installed inside the first extended mounting cover (3), and a first extended oil seal (10) is provided inside the first extended mounting cover (3).
3. The motor front end cover assembly supporting extended oil seal according to claim 1, characterized in that: The second extended mounting cover (4) includes a second grease inlet screw (11), which is located on the surface of the second extended mounting cover (4). A second sealing ring (12) is installed inside the second extended mounting cover (4), and a second extended oil seal (13) is provided inside the second extended mounting cover (4).
4. A motor front end cover assembly supporting an extended oil seal according to claim 1, characterized in that: The third extended mounting cover (5) includes a third grease inlet screw (14), which is located on the surface of the third extended mounting cover (5). A third sealing ring (15) is installed inside the third extended mounting cover (5), and a third extended oil seal (16) is provided inside the third extended mounting cover (5).
5. A motor front end cover assembly supporting an extended oil seal according to claim 1, characterized in that: A first hexagonal galvanized screw (17) is provided between the first extended mounting cover (3) and the second extended mounting cover (4), and the first extended mounting cover (3) and the second extended mounting cover (4) are connected by the first hexagonal galvanized screw (17).
6. A motor front end cover assembly supporting an extended oil seal according to claim 1, characterized in that: A second hexagonal galvanized screw (18) is provided between the second extension mounting cover (4) and the third extension mounting cover (5), and the second extension mounting cover (4) and the third extension mounting cover (5) are connected by the second hexagonal galvanized screw (18).
7. A motor front end cover assembly supporting an extended oil seal according to claim 1, characterized in that: The first extended mounting cover (3), the second extended mounting cover (4) and the third extended mounting cover (5) are all provided with high temperature grease filling cavities (19), and the first extended mounting cover (3), the second extended mounting cover (4) and the third extended mounting cover (5) are all provided with thread holes (20) on one side.