Oil seal assembly, end cover assembly and motor

Abstract

The invention provides an oil seal assembly, an end cover assembly and a motor, the oil seal assembly comprises an oil seal, the oil seal comprises a framework and a rubber ring which are connected, the rubber ring wraps the outer side of the framework, and the rubber ring is provided with an open slot; the operating piece comprises a first connecting part, an operating main body and a second connecting part which are connected in sequence, and the first connecting part and the second connecting part are rotatably arranged in the open slot; wherein the operating piece is provided with an avoiding position and an operating position; when the operating part is located at the avoiding position, the operating main body is located in the open slot; and when the operating part is located at the operating position, the operating main body extends out of the open slot. Through the technical scheme provided by the invention, the technical problem that the oil seal is inconvenient to disassemble in the prior art can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil seal structures, and in particular to an oil seal assembly, an end cover assembly and a motor. Background Art

[0002] At present, with the continuous development of industries such as industrial robots and non-standard automation equipment, the servo motor market size maintains a continuous growth trend, and its application areas are becoming more and more extensive. The oil seal is an important component in the servo motor. Its main function is to prevent external grease and other contaminants from entering the motor, protect the normal operation of the motor, and increase the service life of the motor. The material of the oil seal is generally rubber. The oil seal is pressed into the oil seal chamber of the front cover by a hand trigger to achieve the effect of blocking foreign matter outside the motor. After the installation is completed, as the working time of the servo motor increases, the oil seal will be worn during the rotation of the rotor shaft, and the oil seal will accelerate aging, which will cause the oil seal to fail, thereby destroying the normal operation of the motor. At this time, the motor oil seal needs to be replaced.

[0003] However, when installing the oil seal, the inner diameter of the oil seal is usually interference fit with the size of the rotor shaft oil seal section, and the outer diameter of the oil seal is interference fit with the inner diameter of the motor front cover oil seal chamber, making the oil seal very tight and difficult to remove. This makes it difficult to knock the oil seal out of the oil seal chamber on the servo motor, resulting in a longer working time when removing the motor oil seal. Summary of the invention

[0004] The main purpose of the present invention is to provide an oil seal assembly, an end cover assembly and a motor to solve the technical problem in the prior art that it is inconvenient to disassemble the oil seal.

[0005] In order to achieve the above object, according to one aspect of the present invention, an oil seal assembly is provided, comprising:

[0006] An oil seal, the oil seal comprising a skeleton and a rubber ring which are connected to each other, the rubber ring being wrapped around the outside of the skeleton and having an open groove;

[0007] The operating member comprises a first connecting portion, an operating body and a second connecting portion which are connected in sequence, wherein both the first connecting portion and the second connecting portion are rotatably disposed in the opening groove;

[0008] Wherein, the operating member has an avoidance position and an operating position; when the operating member is in the avoidance position, the operating body is located in the opening slot; when the operating member is in the operating position, the operating body extends out of the opening slot.

[0009] Further, the two sides of the first connection portion are protruding from the two sides of the operating body, and the two sides of the first connection portion are in contact with the peripheral wall of the opening groove; and / or,

[0010] The two sides of the second connection portion are protruding from the two sides of the operating body, and the two sides of the second connection portion are in contact with the peripheral wall of the opening groove; and / or,

[0011] The operating body is an arc-shaped strip structure.

[0012] Further, the rubber ring further has a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are arranged on the groove peripheral wall of the opening groove opposite to each other, the two sides of the first connecting portion are arranged to protrude from the two sides of the operating body, and the two sides of the first connecting portion are respectively installed in the first mounting groove and the second mounting groove; and / or,

[0013] The rubber ring also has a third mounting groove and a fourth mounting groove, and the third mounting groove and the fourth mounting groove are relatively arranged on the peripheral wall of the opening groove. The two sides of the second connecting part protrude from the two sides of the operating body, and the two sides of the second connecting part are respectively installed in the third mounting groove and the fourth mounting groove.

[0014] Further, the first connecting portion is spaced apart from the frame; and / or,

[0015] The second connection portion is spaced apart from the frame.

[0016] Further, the first connecting portion is located on a side of the frame close to the opening of the opening slot; and / or,

[0017] The second connection portion is located on a side of the frame close to the opening of the opening slot.

[0018] Furthermore, the oil seal further comprises an elastic member, and the elastic member is installed in the open groove;

[0019] The first connecting portion is spaced apart from the elastic member, and the first connecting portion is located on a side of the elastic member close to the opening of the opening slot; and / or,

[0020] The second connection portion is spaced apart from the elastic member, and the second connection portion is located on a side of the elastic member close to the opening of the opening groove.

[0021] According to another aspect of the present invention, there is provided an end cap assembly, comprising:

[0022] An end cover having an oil seal chamber;

[0023] The oil seal assembly provided above is installed in the oil seal chamber.

[0024] Furthermore, an operation avoidance groove is arranged on the peripheral wall of the oil seal chamber, and the operation avoidance groove is arranged opposite to the peripheral wall surface of the oil seal of the oil seal assembly.

[0025] Furthermore, the oil seal chamber is arranged opposite to a skeleton of an oil seal of the oil seal assembly.

[0026] According to another aspect of the present invention, there is provided a motor, comprising:

[0027] A housing and a motor shaft, wherein a portion of the motor shaft is disposed in the housing and another portion of the motor shaft extends out of the housing;

[0028] The end cover assembly provided above is arranged at the end of the housing, and the oil seal sleeve of the oil seal assembly is arranged on the motor shaft.

[0029] By applying the technical solution of the present invention, when the oil seal assembly is working normally, the operating member is placed in an avoidance position to avoid the interference or disturbance of the operation of other structures by the operating body; when the oil seal assembly needs to be disassembled, the operating member is placed in the operating position, and the oil seal assembly can be easily disassembled by pulling the operating member. The above structure not only ensures the integrity of the oil seal, but also ensures that the operating member can be easily extended when needed to perform necessary operations, such as adjustment, inspection or maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 It shows a schematic structural diagram of an oil seal assembly when an operating member provided in an embodiment of the present invention is in an operating position;

[0032] Figure 2 A schematic diagram of the structure of an oil seal provided according to an embodiment of the present invention is shown;

[0033] Figure 3 Shows Figure 2 Middle J direction schematic diagram;

[0034] Figure 4 Shows Figure 2 Schematic diagram of the middle M direction;

[0035] Figure 5 A schematic structural diagram of an end cap provided according to an embodiment of the present invention from one viewing angle is shown;

[0036] Figure 6 A schematic structural diagram of an end cap provided by an embodiment of the present invention from another perspective is shown;

[0037] Figure 7 A schematic structural diagram of a motor provided according to an embodiment of the present invention is shown.

[0038] The above drawings include the following reference numerals:

[0039] 10. Oil seal; 11. Frame;

[0040] 12, rubber ring; 121, opening slot; 122, first mounting slot; 123, second mounting slot; 124, third mounting slot; 125, fourth mounting slot;

[0041] 13. Elastic parts;

[0042] 20. operating member; 21. first connecting portion; 22. operating body; 23. second connecting portion;

[0043] 30. End cover; 31. Oil seal chamber; 32. Operation avoidance groove;

[0044] 40. Shell;

[0045] 50. Motor shaft. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] like Figures 1 to 7 As shown, the first embodiment of the present invention provides an oil seal assembly, which includes an oil seal 10 and an operating member 20. The oil seal 10 includes a skeleton 11 and a rubber ring 12 connected to each other. The rubber ring 12 is wrapped around the outside of the skeleton 11, and the rubber ring 12 has an open groove 121. The operating member 20 includes a first connecting portion 21, an operating body 22, and a second connecting portion 23 connected in sequence. The first connecting portion 21 and the second connecting portion 23 can be rotatably arranged in the open groove 121. The operating member 20 has an avoidance position and an operating position; when the operating member 20 is in the avoidance position, the operating body 22 is located in the open groove 121; when the operating member 20 is in the operating position, the operating body 22 extends out of the open groove 121.

[0048] With the oil seal assembly provided in this embodiment, when the oil seal assembly is working normally, the operating member 20 is placed in the avoidance position to avoid interference or disturbance of the operation of other structures by the operating body 22; when the oil seal assembly needs to be disassembled, the operating member 20 is placed in the operating position, and the oil seal assembly can be easily disassembled by pulling the operating member 20. The above structure not only ensures the integrity of the oil seal 10, but also ensures that the operating member 20 can be easily extended when necessary to perform necessary operations, such as adjustment, inspection or maintenance.

[0049] In addition, by installing the operating member 20 on the rubber ring 12, when the oil seal assembly is disassembled, the rubber ring 12 has a certain deformation, which can also facilitate the installation position of the operating member 20 to be partially offset, thereby facilitating better disassembly of the oil seal assembly.

[0050] In this embodiment, the two sides of the first connection part 21 are protruding from the two sides of the operating body 22, and the two sides of the first connection part 21 are in contact with the groove peripheral wall of the opening groove 121. With such a structural setting, it is easy to install the first connection member, so that the operating member 20 is more stable when rotating, reducing the shaking during operation, and improving the accuracy and efficiency of the operation.

[0051] Specifically, the two sides of the second connection part 23 are protruding from the two sides of the operating body 22, and the two sides of the second connection part 23 are in contact with the peripheral wall of the opening groove 121. With such a structural arrangement, it is convenient to better install the first connection member, so that the operating member 20 is more stable when rotating, the shaking during operation is reduced, and the accuracy and efficiency of the operation are improved.

[0052] Specifically, the operating body 22 is an arc-shaped strip structure, which can facilitate the operation of the operating body 22 so that the operating member 20 can move smoothly to the avoidance position or the operating position.

[0053] In this embodiment, the rubber ring 12 further has a first mounting groove 122 and a second mounting groove 123, which are arranged on the groove peripheral wall of the opening groove 121 in a relative manner, and the two sides of the first connecting portion 21 are arranged to protrude from the two sides of the operating body 22, and the two sides of the first connecting portion 21 are respectively installed in the first mounting groove 122 and the second mounting groove 123. With such a structural arrangement, the connection between the first connecting portion 21 and the rubber ring 12 can be made more firmly, and the first connecting portion 21 and the rubber ring 12 can be prevented from accidentally falling off during operation, thereby enhancing the stability and safety of the overall structure of the oil seal assembly.

[0054] Specifically, the rubber ring 12 also has a third mounting groove 124 and a fourth mounting groove 125, which are arranged on the peripheral wall of the opening groove 121 in a relative manner, and the two sides of the second connecting portion 23 are arranged to protrude from the two sides of the operating body 22, and the two sides of the second connecting portion 23 are respectively installed in the third mounting groove 124 and the fourth mounting groove 125. With such a structural arrangement, the connection between the second connecting portion 23 and the rubber ring 12 can be made more firmly, and the second connecting portion 23 and the rubber ring 12 can be prevented from accidentally falling off during operation, thereby enhancing the stability and safety of the overall structure of the oil seal assembly.

[0055] Specifically, the first connection part 21 is spaced apart from the frame 11, so that it is possible to avoid the situation where the operating member 20 is inconvenient to operate due to the strong rigidity and hardness of the structure of the oil seal 10 located at the frame 11. When the oil seal assembly is disassembled, because the first connection part 21 is spaced apart from the frame 11, the rubber ring 12 at the first connection part 21 is deformed, so that the position of the first connection part 21 is changed, and it is avoided that the oil seal 10 is inconvenient to disassemble due to the increase in structural strength caused by the provision of the first connection part 21.

[0056] Specifically, the second connection part 23 is spaced apart from the frame 11, so that it is possible to avoid the situation where the operating member 20 is inconvenient to operate due to the strong rigidity and hardness of the structure of the oil seal 10 located at the frame 11. When the oil seal assembly is disassembled, because the second connection part 23 is spaced apart from the frame 11, the part of the rubber ring 12 at the second connection part 23 is deformed, so that the position of the second connection part 23 is changed, and it is avoided that the oil seal 10 is inconvenient to disassemble due to the increase in structural strength caused by the provision of the first connection part 21.

[0057] In this embodiment, the first connection portion 21 is located on one side of the frame 11 close to the opening of the opening groove 121, so that the structural strength of the installation location of the first connection portion 21 can be better reduced, thereby better avoiding the situation where the structural rigidity and strength of the first connection portion 21 are increased too much, thereby facilitating better disassembly of the oil seal 10. In addition, this layout reduces the operating resistance when disassembling the oil seal assembly, and improves the convenience of operation.

[0058] Specifically, the second connection portion 23 is located on one side of the frame 11 close to the opening of the opening groove 121, so that the structural strength of the installation location of the second connection portion 23 can be better reduced, thereby better avoiding the situation where the structural rigidity and strength of the second connection portion 23 are increased too much, thereby facilitating better disassembly of the oil seal 10. In addition, this layout reduces the operating resistance when disassembling the oil seal assembly, and improves the convenience of operation.

[0059] In this embodiment, the oil seal 10 further includes an elastic member 13 , and the elastic member 13 is installed in the opening groove 121 to improve the installation stability of the oil seal 10 .

[0060] Specifically, the first connection portion 21 is spaced apart from the elastic member 13 and is located on one side of the elastic member 13 close to the opening of the opening groove 121. With such a structural arrangement, the first connection portion 21 can be easily interfered with the elastic member 13, thereby optimizing the structural layout of the oil seal assembly.

[0061] Specifically, the second connection portion 23 is spaced apart from the elastic member 13 and is located on one side of the elastic member 13 near the opening of the opening groove 121. With such a structural arrangement, the first connection portion 21 can be easily interfered with the elastic member 13, thereby optimizing the structural layout of the oil seal assembly.

[0062] The oil seal assembly in this embodiment can reduce the difficulty of disassembling the oil seal 10 while ensuring the basic performance of the oil seal 10. In addition to reducing the difficulty of disassembling the oil seal 10, the above structure reduces the damage to the oil seal chamber 31 when the oil seal 10 is disassembled.

[0063] The second embodiment of the present invention provides an end cover assembly, which includes an end cover 30 and the above-mentioned oil seal assembly. The end cover 30 has an oil seal chamber 31 , and the oil seal assembly is installed in the oil seal chamber 31 .

[0064] Specifically, the end cover 30 is also provided with a mounting hole communicating with the oil seal chamber 31 , and the mounting hole is used for mounting a bearing.

[0065] In this embodiment, an operation avoidance groove 32 is provided on the peripheral wall of the oil seal chamber 31, and the operation avoidance groove 32 is arranged opposite to the peripheral wall surface of the oil seal 10 of the oil seal assembly. With such a structural arrangement, it is convenient to insert at least part of the disassembly tool into the operation avoidance groove 32 during disassembly, so that the disassembly tool can tilt the oil seal assembly, thereby facilitating the disassembly of the oil seal assembly.

[0066] By adopting the above structure, when removing the oil seal 10, a forward pulling force can be applied to the operating member 20 in the direction of the shaft extension, and at the same time, a screwdriver can be slowly inserted into the operating avoidance groove 32 of the oil seal chamber 31 of the end cover 30, and an upward force is applied to the screwdriver. In this process, the operating avoidance groove 32 will play a buffering role to reduce the damage to the oil seal chamber 31 of the front cover 30 during the removal of the oil seal 10. The new method for removing the oil seal 10 can easily remove the oil seal 10, reduce the working hours of removing the oil seal 10, and reduce the difficulty of removing the oil seal 10; in addition, compared with the previous method of prying out the oil seal 10 with great force with a screwdriver, the oil seal 10 with a pull ring (corresponding to the operating member 20) causes less damage to the oil seal chamber 31 of the front cover 30 of the motor when it is removed, and when replacing the failed oil seal 10, the lip of the new oil seal 10 pressed in is less damaged, the sealing performance of the oil seal 10 is guaranteed, and the life of the motor is greatly extended.

[0067] In this embodiment, the oil seal chamber 31 is arranged opposite to the frame 11 of the oil seal 10 of the oil seal assembly. With such a structural arrangement, it is convenient to effectively operate the part of the oil seal assembly with greater structural strength, so as to deform the part of the oil seal assembly corresponding to the frame 11, thereby facilitating the disassembly of the oil seal assembly.

[0068] Embodiment three of the present invention provides a motor, which includes a housing 40, a motor shaft 50 and an end cover assembly provided in the above embodiments, wherein a portion of the motor shaft 50 is disposed in the housing 40, and another portion of the motor shaft 50 extends out of the housing 40; the end cover assembly is disposed at an end portion of the housing 40, and an oil seal 10 of the oil seal assembly is sleeved on the motor shaft 50.

[0069] In the application of the motor, the oil seal assembly can not only effectively prevent the leakage of lubricating oil and protect the motor shaft 50 from external pollution, but also facilitate the adjustment and disassembly of the oil seal 10 through the setting of the operating part 20, thereby improving the reliability and maintenance efficiency of the motor. It is suitable for various industrial and civil motors, such as fan motors, water pump motors, industrial drive motors, etc.

[0070] Specifically, in practical applications, the inner diameter of the oil seal can be designed according to the shaft diameter of the oil seal position of the motor rotor shaft; the outer diameter and thickness of the oil seal can be designed according to the diameter and depth of the oil seal chamber of the front end cover of the motor; the size of the pull ring can be designed according to the size of the oil seal; and the size of the groove can be designed according to the size of the oil seal chamber of the front end cover.

[0071] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: the new oil seal structure and the new end cover structure not only reduce the difficulty of disassembling the oil seal, making the oil seal assembly easy to disassemble and reducing the working hours of replacing the oil seal assembly, but also can replace the oil seal of the motor when the oil seal fails, thereby extending the service life of the motor. The new oil seal structure and the new end cover structure can reduce the damage to the oil seal chamber of the front end cover of the motor when the oil seal is disassembled, thereby reducing the damage to the oil seal lip when replacing the new oil seal; the oil seal assembly not only improves the sealing performance and operating convenience of the equipment, but also effectively extends the service life of the oil seal and reduces the maintenance cost of the equipment. In practical applications, this design is particularly suitable for equipment that needs to operate in harsh environments and requires regular maintenance and adjustment. For example, in the field of wind power generation, wind turbines need to operate in an environment with high wind speed and high vibration. At the same time, in order to ensure its long-term stable operation, it can also be more convenient to adjust, disassemble and replace the oil seal. The design of this oil seal assembly just meets these needs. It not only protects the motor shaft from the influence of the external environment, but also allows adjustment and testing without damaging the oil seal structure through the setting of the operating parts, greatly improving maintenance efficiency and reducing maintenance costs. In addition, since the operating parts are completely hidden in the rubber ring when in the avoidance position, it will not affect the sealing performance of the oil seal. Therefore, this design is also suitable for precision equipment that has extremely high requirements for sealing performance.

[0072] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0073] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0074] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0075] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0076] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil seal assembly, characterized in that: include: An oil seal (10), the oil seal (10) comprising a skeleton (11) and a rubber ring (12) which are connected to each other, the rubber ring (12) being wrapped around the outer side of the skeleton (11), and the rubber ring (12) having an open groove (121); An operating member (20) comprises a first connecting portion (21), an operating body (22) and a second connecting portion (23) which are connected in sequence, wherein both the first connecting portion (21) and the second connecting portion (23) are rotatably disposed in the opening groove (121); The operating member (20) has an avoidance position and an operating position; when the operating member (20) is in the avoidance position, the operating body (22) is located in the opening slot (121); when the operating member (20) is in the operating position, the operating body (22) extends out of the opening slot (121).

2. The oil seal assembly according to claim 1, characterized in that: The two sides of the first connection portion (21) are protruding from the two sides of the operating body (22), and the two sides of the first connection portion (21) are in contact with the peripheral wall of the opening groove (121); and / or, The two sides of the second connection portion (23) are protruding from the two sides of the operating body (22), and the two sides of the second connection portion (23) are in contact with the peripheral wall of the opening groove (121); and / or, The operating body (22) is an arc-shaped strip structure.

3. The oil seal assembly according to claim 1, characterized in that: The rubber ring (12) further comprises a first mounting groove (122) and a second mounting groove (123), the first mounting groove (122) and the second mounting groove (123) being arranged opposite to each other on the groove peripheral wall of the opening groove (121), the two sides of the first connecting portion (21) being arranged protruding from the two sides of the operating body (22), and the two sides of the first connecting portion (21) being respectively mounted in the first mounting groove (122) and the second mounting groove (123); and / or, The rubber ring (12) further comprises a third mounting groove (124) and a fourth mounting groove (125), wherein the third mounting groove (124) and the fourth mounting groove (125) are arranged on the peripheral wall of the opening groove (121) in a relative manner, and the two sides of the second connecting portion (23) are arranged to protrude from the two sides of the operating body (22), and the two sides of the second connecting portion (23) are respectively installed in the third mounting groove (124) and the fourth mounting groove (125).

4. The oil seal assembly according to claim 1, characterized in that: The first connecting portion (21) is spaced apart from the frame (11); and / or, The second connecting portion (23) is spaced apart from the frame (11).

5. The oil seal assembly according to claim 4, characterized in that: The first connecting portion (21) is located on a side of the frame (11) close to the opening of the opening slot (121); and / or, The second connecting portion (23) is located on a side of the frame (11) close to the opening of the opening groove (121).

6. The oil seal assembly according to claim 1, characterized in that: The oil seal (10) further comprises an elastic member (13), wherein the elastic member (13) is installed in the opening groove (121); The first connecting portion (21) is spaced apart from the elastic member (13), and the first connecting portion (21) is located on a side of the elastic member (13) close to the opening of the opening groove (121); and / or, The second connecting portion (23) is spaced apart from the elastic member (13), and the second connecting portion (23) is located on a side of the elastic member (13) close to the opening of the opening groove (121).

7. An end cap assembly, characterized in that: include: An end cover (30), wherein the end cover (30) has an oil seal chamber (31); The oil seal assembly according to any one of claims 1 to 6, wherein the oil seal assembly is installed in the oil seal chamber (31).

8. The end cap assembly according to claim 7, characterized in that: An operation avoidance groove (32) is provided on the peripheral wall of the oil seal chamber (31), and the operation avoidance groove (32) is arranged opposite to the peripheral wall surface of the oil seal (10) of the oil seal assembly.

9. The end cap assembly according to claim 8, characterized in that: The oil seal chamber (31) is arranged opposite to the frame (11) of the oil seal (10) of the oil seal assembly.

10. A motor, characterized in that: include: A housing (40) and a motor shaft (50), wherein a portion of the motor shaft (50) is disposed inside the housing (40) and another portion of the motor shaft (50) is disposed protruding from the housing (40); The end cover assembly according to any one of claims 7 to 9, wherein the end cover assembly is arranged at the end of the housing (40), and the oil seal (10) of the oil seal assembly is sleeved on the motor shaft (50).

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