End cover assembly and motor with same

Abstract

The utility model discloses an end cover assembly and a motor with the same, and the end cover assembly comprises a cover body which is provided with a mounting hole; the motor shaft is arranged in the mounting hole in a penetrating manner and is separated from the inner wall of the mounting hole; the bearing is arranged in the mounting hole and arranged on the motor shaft in a sleeving mode, the bearing comprises an inner ring, an outer ring and a sealing cover, the inner ring is fixedly connected with the motor shaft, the outer ring is fixedly connected with the inner circumferential wall of the mounting hole, the sealing cover is arranged at at least one end of the bearing in the axial direction, and the sealing cover is arranged around the motor shaft and used for blocking a gap between the inner ring and the outer ring. According to the end cover assembly, the sealing cover is arranged at at least one end of the bearing in the axial direction and used for blocking the gap between the inner ring and the outer ring, so that the dustproof and waterproof capacity of the end cover assembly can be guaranteed, the durability of the end cover assembly is guaranteed, the number of parts of the end cover assembly is reduced, and the assembly process of the end cover assembly is simplified; the assembly difficulty of the end cover assembly is reduced, and the production and processing cost of the end cover assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an end cover assembly and a motor having the same. Background Art

[0002] In the related art, due to the harsh working environment of the servo motor, the whole machine needs to be waterproofed, especially the connection between the motor output shaft and the front cover needs to be specially waterproofed. In the prior art, an oil seal and an oil seal ring are usually added between the front cover and the motor output shaft to achieve sealing, but this often results in a large number of motor parts, complex assembly, and poor durability. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an end cap assembly, which can ensure dustproof and waterproof capabilities and durability, reduce the number of parts, simplify the assembly process, reduce the difficulty of assembly, and reduce production and processing costs.

[0004] The utility model also provides a motor, which comprises the above-mentioned end cover assembly.

[0005] According to the embodiment of the utility model, the end cover assembly includes: a cover body, which has a mounting hole; a motor shaft, which is inserted into the mounting hole and spaced apart from the inner wall of the mounting hole; a bearing, which is arranged in the mounting hole and sleeved on the motor shaft, the bearing including an inner ring, an outer ring and a sealing cover, the inner ring is fixedly connected to the motor shaft, the outer ring is fixedly connected to the inner circumferential wall of the mounting hole, and a sealing cover is provided at at least one end of the bearing in the axial direction, and the sealing cover is arranged around the motor shaft to seal the gap between the inner ring and the outer ring.

[0006] According to the end cover assembly of the embodiment of the utility model, a bearing is sleeved on the motor shaft, the inner ring of the bearing is fixedly connected to the motor shaft, the outer ring of the bearing is fixedly connected to the inner circumferential wall of the mounting hole, and a sealing cover is provided at at least one end of the bearing in the axial direction. The sealing cover is arranged around the motor shaft and is used to seal the gap between the inner ring and the outer ring. The dust and water resistance of the end cover assembly can be ensured, the durability of the end cover assembly can be ensured, the number of parts of the end cover assembly can be reduced, the assembly process of the end cover assembly can be simplified, the assembly difficulty of the end cover assembly can be reduced, and the production and processing cost of the end cover assembly can be reduced.

[0007] In addition, the end cover assembly according to the utility model may also have the following additional technical features:

[0008] In some embodiments, the sealing cover is located between the inner ring and the outer ring, the outer circumferential wall of the sealing cover abuts against the inner circumferential wall of the outer ring, and the inner circumferential wall of the sealing cover abuts against the outer circumferential wall of the inner ring.

[0009] In some embodiments, two first sealing lips are provided on the inner circumferential wall of the sealing cover, the two first sealing lips are ring-shaped and extend along the circumferential direction of the sealing cover and are arranged in the axial direction of the bearing, and the free ends of the two first sealing lips are inclined away from each other and are both in contact with the outer circumferential wall of the inner ring.

[0010] In some embodiments, a second sealing lip is provided on the outer circumferential wall of the sealing cover, the second sealing lip extends in a ring shape along the circumferential direction of the sealing cover, and the free end of the second sealing lip abuts against the inner circumferential wall of the outer ring.

[0011] In some embodiments, the cover body has a limiting portion extending toward the axial direction of the mounting hole, and the limiting portion is located on one side of the axial direction of the bearing and abuts against the outer ring.

[0012] In some embodiments, one end of the outer ring away from the limiting portion is riveted to the cover body.

[0013] In some embodiments, the end cover assembly further includes: a baffle, which is disposed on a side of the bearing away from the limiting portion, the baffle being connected to the cover body and abutting against a side of the outer ring away from the limiting portion.

[0014] In some embodiments, a sealing ring is provided between the outer peripheral wall of the outer ring and the inner wall of the mounting hole.

[0015] In some embodiments, there are multiple sealing rings, and the multiple sealing rings are spaced apart along the axial direction of the bearing.

[0016] In some embodiments, the outer peripheral wall of the outer ring is adhesively connected to the inner wall of the mounting hole.

[0017] The utility model also provides a motor having the above embodiment.

[0018] According to the motor of the embodiment of the utility model, the above-mentioned end cover assembly is provided, a bearing is sleeved on the motor shaft, the inner ring of the bearing is fixedly connected to the motor shaft, the outer ring of the bearing is fixedly connected to the inner circumferential wall of the mounting hole, and a sealing cover is provided at at least one end of the bearing in the axial direction. The sealing cover is arranged around the motor shaft and is used to seal the gap between the inner ring and the outer ring. The dust and water resistance of the end cover assembly can be ensured, the durability of the end cover assembly can be ensured, the number of parts of the end cover assembly can be reduced, the assembly process of the end cover assembly can be simplified, the assembly difficulty of the end cover assembly can be reduced, and the production and processing cost of the end cover assembly can be reduced.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a three-dimensional diagram of an end cover assembly according to an embodiment of the utility model;

[0022] Figure 2 is a cross-sectional view of an end cap assembly according to a first embodiment of the utility model;

[0023] Figure 3 is a cross-sectional view of an end cap assembly according to a second embodiment of the utility model;

[0024] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0025] Figure 5 It is a cross-sectional view of an end cover assembly according to a third embodiment of the utility model.

[0026] Reference numerals:

[0027] 100, end cover assembly;

[0028] 1. Cover body; 11. Mounting hole; 12. Limiting part;

[0029] 2. Motor shaft;

[0030] 3. Bearing; 31. Inner ring; 32. Outer ring; 321. Sealing ring; 322. Positioning groove; 33. Sealing cover; 331. First sealing lip; 332. Second sealing lip; 333. Dust cover; 34. Rolling element;

[0031] 4. Baffle; 41. Fastener. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The end cover assembly 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0037] like Figure 1 and Figure 2 As shown, the end cover assembly 100 according to the embodiment of the utility model includes a cover body 1, a motor shaft 2 and a bearing 3.

[0038] Specifically, refer to the attached Figure 2 and attached Figure 3As shown, the cover body 1 has a mounting hole 11, the motor shaft 2 is inserted into the mounting hole 11 and is spaced apart from the inner wall of the mounting hole 11, the bearing 3 is arranged in the mounting hole 11 and sleeved on the motor shaft 2, the bearing 3 includes an inner ring 31, an outer ring 32 and a sealing cover 33, the inner ring 31 is fixedly connected to the motor shaft 2, the outer ring 32 is fixedly connected to the inner peripheral wall of the mounting hole 11, and the bearing 3 also includes a rolling body 34, the rolling body 34 is movably arranged between the inner ring 31 and the outer ring 32, and the relative rotation between the inner ring 31 and the outer ring 32 can be realized, so that the motor shaft 2 can rotate relative to the cover body 1, and the mechanical energy loss is reduced, the friction between the motor shaft 2 and the cover body 1 is reduced, and the service life of the motor is extended. Preferably, the inner ring 31 and the motor shaft 2 are fixedly connected by interference fit, which has a simple structure, large bearing capacity, good stability, and can ensure the centering of the inner ring 31 and the motor shaft 2 when they are matched.

[0039] Further, see Attachment Figure 2 and attached Figure 5 As shown, the axial direction of bearing 3 (refer to the attached Figure 2 At least one end of the inner ring 31 and the outer ring 32 is provided with a sealing cover 33, which is arranged around the motor shaft 2 to block the gap between the inner ring 31 and the outer ring 32, thereby preventing the outer side of the motor (such as Figure 2 Water, dust or other pollutants (as shown) flow into the inner side of the motor (as shown) through the gap between the inner ring 31 and the outer ring 32. Figure 2 As shown), the dust and water resistance of the end cover assembly 100 is ensured, so as to prevent dust or other pollutants from causing wear to the bearing 3 or other components inside the motor, ensure the normal operation of the bearing 3, ensure the durability of the end cover assembly 100, prevent water from entering the inside of the motor, ensure the safety and normal operation of the motor, and extend the service life of the motor.

[0040] It can be understood that a sealing cover 33 may be provided only at one end of the bearing 3 facing the outside of the motor, which can mainly prevent water, dust or other pollutants on the outside of the motor from flowing into the inside of the motor through the gap between the inner ring 31 and the outer ring 32, thereby reducing the production cost of the end cover assembly 100 while ensuring the dustproof and waterproof capabilities of the end cover assembly 100; a sealing cover 33 may be provided only at one end of the bearing 3 facing the inside of the motor, which can mainly prevent pollutants on the inside of the motor from flowing out of the motor through the gap between the inner ring 31 and the outer ring 32, thereby reducing the production cost of the end cover assembly 100 and reducing the maintenance and cleaning frequency of the user; and sealing covers 33 may be provided at both ends of the bearing 3 in the axial direction, which can further enhance the sealing effect of the sealing cover 33 and improve the dustproof and waterproof capabilities of the end cover assembly 100.

[0041] It should be noted that if Figure 5As shown, when a sealing cover 33 is provided only on one side of the bearing 3 in the axial direction, an ordinary dust cover 333 can be provided on the side where the sealing cover 33 is not provided. One end of the dust cover 333 along the radial direction of the bearing 3 is fixed to the inner ring 31 or the outer ring 32, and the other end has a certain gap with the outer ring 32 or the inner ring 31, which can achieve a dust-proof effect to a certain extent.

[0042] It can be understood that, compared with the prior art in which an oil seal and an oil seal ring are added between the motor shaft and the inner circumferential wall of the mounting hole, the utility model provides a sealing cover 33 at at least one end of the bearing 3 in the axial direction to seal the gap between the inner ring 31 and the outer ring 32. On the basis of ensuring the dustproof and waterproof capabilities of the end cover assembly 100, the number of parts of the end cover assembly 100 can be reduced, the assembly process of the end cover assembly 100 can be simplified, the assembly difficulty of the end cover assembly 100 can be reduced, and the production and processing cost of the end cover assembly 100 can be reduced.

[0043] Optionally, a surface of one side of the cover body 1 facing the outside of the motor is provided with reinforcing ribs to improve the structural strength of the cover body 1 and improve the reliability and stability of the end cover assembly 100 .

[0044] According to the end cover assembly 100 of the embodiment of the utility model, a bearing 3 is sleeved on the motor shaft 2, the inner ring 31 of the bearing 3 is fixedly connected to the motor shaft 2, the outer ring 32 of the bearing 3 is fixedly connected to the inner circumferential wall of the mounting hole 11, and a sealing cover 33 is provided at at least one end of the bearing 3 in the axial direction. The sealing cover 33 is arranged around the motor shaft 2 to seal the gap between the inner ring 31 and the outer ring 32, which can ensure the dustproof and waterproof capabilities of the end cover assembly 100, ensure the durability of the end cover assembly 100, reduce the number of parts of the end cover assembly 100, simplify the assembly process of the end cover assembly 100, reduce the assembly difficulty of the end cover assembly 100, and reduce the production and processing cost of the end cover assembly 100.

[0045] In some embodiments of the present invention, refer to the attached Figure 3 and attached Figure 4 As shown, the sealing cover 33 is located between the inner ring 31 and the outer ring 32, and the outer circumferential wall of the sealing cover 33 abuts against the inner circumferential wall of the outer ring 32, and the inner circumferential wall of the sealing cover 33 abuts against the outer circumferential wall of the inner ring 31, which can prevent water, dust or other pollutants on the outside of the motor from flowing into the inside of the motor through the gap between the outer circumferential wall of the sealing cover 33 and the inner circumferential wall of the outer ring 32, and the gap between the inner circumferential wall of the sealing cover 33 and the outer circumferential wall of the inner ring 31, further ensuring the sealing effect of the sealing cover 33 on the gap between the inner ring 31 and the outer ring 32, improving the dust and water resistance of the end cover assembly 100, and extending the service life of the motor.

[0046] In a further embodiment of the present invention, refer to the attached Figure 4As shown, two first sealing lips 331 are provided on the inner circumferential wall of the sealing cover 33. The two first sealing lips 331 are ring-shaped and extend along the circumferential direction of the sealing cover 33 and are arranged in the axial direction of the bearing 3. The free ends of the two first sealing lips 331 are inclined in a direction away from each other and are both in contact with the outer circumferential wall of the inner ring 31, so as to seal at two places of the bearing 3 spaced apart in the axial direction, further preventing water, dust or other pollutants on the outside of the motor from entering the inside of the motor through the gap between the inner circumferential wall of the sealing cover 33 and the outer circumferential wall of the inner ring 31, thereby ensuring the dustproof and waterproof capabilities of the end cover assembly 100 and extending the service life of the motor.

[0047] It should be noted that the inner ring 31 of the bearing 3 is a metal part, and the sealing cover 33 is a plastic part. When the sealing cover 33 is installed between the inner ring 31 and the outer ring 32, the first sealing lip 331 and the inner ring 31 are squeezed against each other. Due to different material properties, the first sealing lip 331 will produce a certain degree of deformation, so that the friction between the first sealing lip 331 and the inner ring 31 can be reduced as much as possible while ensuring the seal between the sealing cover 33 and the inner ring 31, ensuring the relative rotation between the inner ring 31 and the sealing cover 33, reducing the friction loss of the motor, and reducing the impact on the safety margin of the motor.

[0048] Of course, the present invention is not limited to this, and the inner wall of the sealing cover 33 may be provided with only one first sealing lip 331, which can relatively reduce the friction between the sealing cover 33 and the inner ring 31, further reduce the friction loss of the motor, and reduce the impact on the safety margin of the motor.

[0049] In a further embodiment of the present invention, refer to the attached Figure 4 As shown, a second sealing lip 332 is provided on the outer circumferential wall of the sealing cover 33. The second sealing lip 332 extends in a ring shape along the circumferential direction of the sealing cover 33. The free end of the second sealing lip 332 abuts against the inner circumferential wall of the outer ring 32. The free end of the second sealing lip 332 is inclined toward the outer end of the bearing 3 in the axial direction. The cooperation between the second sealing lip 332 and the outer ring 32 can enhance the sealing effect between the sealing cover 33 and the outer ring 32, further preventing water, dust or other pollutants outside the motor from entering the inside of the motor through the gap between the outer circumferential wall of the sealing cover 33 and the inner circumferential wall of the outer ring 32, thereby ensuring the dust and water proof capability of the end cover assembly 100 and extending the service life of the motor.

[0050] It should be noted that the outer ring 32 of the bearing 3 is a metal part, and the sealing cover 33 is a plastic part. When the sealing cover 33 is installed between the inner ring 31 and the outer ring 32, the second sealing lip 332 and the outer ring 32 are squeezed against each other. Due to different material properties, the second sealing lip 332 will produce a certain degree of deformation, so that the friction between the second sealing lip 332 and the outer ring 32 can be reduced as much as possible while ensuring the seal between the sealing cover 33 and the outer ring 32, ensuring the relative rotation between the outer ring 32 and the sealing cover 33, reducing the friction loss of the motor, and reducing the impact on the safety margin of the motor.

[0051] Of course, the present invention is not limited to this. The outer circumferential wall of the sealing cover 33 and the inner circumferential wall of the outer ring 32 may be interference fit, which can make full use of the material properties and realize the synchronous rotation of the sealing cover 33 and the outer ring 32 through a simple structure; the outer circumferential wall of the sealing cover 33 and the inner circumferential wall of the outer ring 32 may also be directly connected to ensure the reliability of the connection between the sealing cover 33 and the outer ring 32.

[0052] In some embodiments of the present invention, refer to the attached Figure 2 , Attachment Figure 3 and attached Figure 4 As shown, the cover body 1 has a limiting portion 12 extending in the axial direction of the mounting hole 11. The limiting portion 12 is located on one side of the axial direction of the bearing 3 and abuts against the outer ring 32, which can limit the movement of the outer ring 32 in the axial direction and prevent the outer ring 32 from moving in the direction close to the limiting portion 12, thereby ensuring that the mating surfaces of the outer ring 32 and the cover body 1 are always in the same position, ensuring the reliability of the connection between the bearing 3 and the cover body 1, and further ensuring the effectiveness of the bearing 3 and the normal operation of the motor.

[0053] In a further embodiment of the utility model, one end of the outer ring 32 away from the limiting portion 12 is riveted to the cover body 1, which can ensure the connection strength between the outer ring 32 and the cover body 1, improve the stability and reliability of the connection between the outer ring 32 and the cover body 1, limit the movement of the outer ring 32 in the axial direction, and prevent the outer ring 32 from moving in the direction away from the limiting portion 12, further ensuring that the mating surfaces of the outer ring 32 and the cover body 1 are always in the same position, thereby ensuring the effectiveness of the bearing 3 and ensuring the normal operation of the motor.

[0054] In a further embodiment of the present invention, refer to the attached Figure 3 and attached Figure 4As shown, the end cover assembly 100 also includes a baffle 4, which is arranged on the side of the bearing 3 away from the limiting portion 12, and is connected to the cover body 1 and abuts against the side of the outer ring 32 away from the limiting portion 12. The connection between the baffle 4 and the cover body 1 can fix the baffle 4 to prevent the baffle 4 from being offset. The baffle 4 abuts against the side of the outer ring 32 away from the limiting portion 12, and can limit the outer ring 32 to prevent the outer ring 32 from moving in the direction away from the limiting portion 12, further ensuring that the mating surfaces of the outer ring 32 and the cover body 1 are always in the same position, thereby ensuring the effectiveness of the bearing 3 and ensuring the normal operation of the motor. Preferably, one end of the bearing 3 that deviates from the limiting portion 12 is flush with the cover body 1, or one end of the outer ring 32 that deviates from the limiting portion 12 is against the baffle 4, and there is a certain gap between the end of the cover body 1 that faces the baffle 4 and the baffle 4, which can facilitate the baffle 4 to apply pressure to the outer ring 32, thereby ensuring the limiting effect of the baffle 4 on the outer ring 32, thereby ensuring that the bearing 3 functions normally.

[0055] Specifically, refer to the attached Figure 3 and attached Figure 4 As shown, the baffle 4 is connected to the cover body 1 by a fastener 41, which can reduce the difficulty of connecting the baffle 4 and the cover body 1, reduce the difficulty of assembling the end cover assembly 100, and improve the connection reliability between the baffle 4 and the cover body 1, avoid the baffle 4 from being offset, and ensure the limiting effect of the baffle 4 on the bearing 3.

[0056] In some embodiments of the present invention, refer to the attached Figure 3 and attached Figure 4 As shown, a sealing ring 321 is provided between the outer peripheral wall of the outer ring 32 and the inner wall of the mounting hole 11. The sealing ring 321 and the outer peripheral wall of the outer ring 32 and the inner wall of the mounting hole 11 are all interference fit, which can prevent the outer ring 32 and the cover body 1 from rotating relative to each other, and prevent water, dust or other pollutants from entering the motor from the outer peripheral wall of the outer ring 32 and the inner wall of the mounting hole 11, further enhance the waterproof and dustproof ability of the end cover assembly 100, reduce the probability of dust or other pollutants causing wear to the bearing 3 or other parts inside the motor, ensure the normal operation of the bearing 3, ensure the durability of the end cover assembly 100, prevent water from entering the motor, ensure the safety and normal operation of the motor, and extend the service life of the motor. It should be noted that the setting of the sealing ring 321 can also play a certain degree of inhibitory effect on the phenomenon of the motor transmitting vibration through the bearing 3.

[0057] In a further embodiment of the present invention, refer to the attached Figure 4As shown, there are multiple sealing rings 321, and the multiple sealing rings 321 are spaced apart along the axial direction of the bearing 3, and can play a sealing role from multiple places spaced apart between the outer peripheral wall of the outer ring 32 and the inner wall of the mounting hole 11, strengthen the sealing strength between the outer peripheral wall of the outer ring 32 and the inner wall of the mounting hole 11, improve the waterproof and dustproof ability of the end cover assembly 100, reduce the probability of dust or other pollutants causing wear to the bearing 3 or other components inside the motor, ensure the normal operation of the bearing 3, ensure the durability of the end cover assembly 100, prevent water from entering the inside of the motor, ensure the safety and normal operation of the motor, and extend the service life of the motor.

[0058] For example, the sealing rings 321 may be two, three, four or five sealing rings 321 spaced apart in the axial direction of the bearing 3, and can respectively play a sealing role at two, three, four or five locations spaced apart between the outer peripheral wall of the outer ring 32 and the inner wall of the mounting hole 11, thereby greatly enhancing the sealing strength between the outer peripheral wall of the outer ring 32 and the inner wall of the mounting hole 11. In a specific example, refer to the attached Figure 4 As shown, two positioning grooves 322 are provided on the outer peripheral wall of the outer ring 32, and the side of the positioning groove 322 facing the inner wall of the mounting hole 11 is open. There are two sealing rings 321 spaced apart in the axial direction of the bearing 3. The two sealing rings 321 are respectively arranged in the two positioning grooves 322. The sealing ring 321 and the positioning groove 322 have an interference fit, which can play a positioning role for the sealing ring 321, avoid the sealing ring 321 from moving in the axial direction of the bearing 3, and ensure the effectiveness of the seal.

[0059] In some embodiments of the present invention, refer to the attached Figure 2 As shown, the outer peripheral wall of the outer ring 32 is bonded to the inner wall of the mounting hole 11, and the outer peripheral wall of the outer ring 32 is directly connected to the inner wall of the mounting hole 11 by bonding, so as to ensure uniform force between the outer peripheral wall of the outer ring 32 and the inner wall of the mounting hole 11, avoid stress concentration, and the connection strength is relatively higher, which is conducive to the lightweight design of the end cover assembly 100. It should be noted that by bonding the outer peripheral wall of the outer ring 32 to the inner wall of the mounting hole 11, the outer ring 32 can be fixed to the cover body 1 without additional limit parts 12 or fixing process, which can relatively reduce the number of parts of the end cover assembly 100, simplify the assembly process of the end cover assembly 100, reduce the assembly difficulty of the end cover assembly 100, and reduce the production and processing cost of the end cover assembly 100.

[0060] The utility model also provides a motor having the end cover assembly 100 of the above embodiment.

[0061] According to the motor of the embodiment of the utility model, the above-mentioned end cover assembly 100 is provided, and the bearing 3 is sleeved on the motor shaft 2, the inner ring 31 of the bearing 3 is fixedly connected to the motor shaft 2, and the outer ring 32 of the bearing 3 is fixedly connected to the inner circumferential wall of the mounting hole 11, and at least one end of the bearing 3 in the axial direction is provided with a sealing cover 33, and the sealing cover 33 is arranged around the motor shaft 2 to seal the gap between the inner ring 31 and the outer ring 32, which can ensure the dustproof and waterproof capabilities of the end cover assembly 100, ensure the durability of the end cover assembly 100, reduce the number of parts of the end cover assembly 100, simplify the assembly process of the end cover assembly 100, reduce the assembly difficulty of the end cover assembly 100, and reduce the production and processing cost of the end cover assembly 100.

[0062] The end cover assembly 100 and other structures and operations of the motor according to the embodiment of the utility model are well known to those skilled in the art and will not be described in detail here.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0064] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An end cap assembly, characterized in that: include: A cover body, wherein the cover body has a mounting hole; a motor shaft, the motor shaft being inserted into the mounting hole and spaced apart from an inner wall of the mounting hole; A bearing, wherein the bearing is arranged in the mounting hole and sleeved on the motor shaft, the bearing comprises an inner ring, an outer ring and a sealing cover, the inner ring is fixedly connected to the motor shaft, the outer ring is fixedly connected to the inner circumferential wall of the mounting hole, and a sealing cover is provided at least at one end of the bearing in the axial direction, the sealing cover is arranged around the motor shaft, and is used to seal the gap between the inner ring and the outer ring.

2. The end cap assembly according to claim 1, characterized in that: The sealing cover is located between the inner ring and the outer ring, the outer peripheral wall of the sealing cover abuts against the inner peripheral wall of the outer ring, and the inner peripheral wall of the sealing cover abuts against the outer peripheral wall of the inner ring.

3. The end cap assembly according to claim 2, characterized in that: Two first sealing lips are provided on the inner circumferential wall of the sealing cover. The two first sealing lips are annular and extend in the circumferential direction of the sealing cover and are arranged in the axial direction of the bearing. The free ends of the two first sealing lips are inclined away from each other and are both in contact with the outer circumferential wall of the inner ring.

4. The end cap assembly according to claim 2, characterized in that: A second sealing lip is provided on the outer peripheral wall of the sealing cover. The second sealing lip extends in a ring shape along the circumferential direction of the sealing cover. The free end of the second sealing lip abuts against the inner peripheral wall of the outer ring.

5. The end cap assembly according to claim 1, characterized in that: The cover body has a limiting portion extending toward the axial direction of the mounting hole, and the limiting portion is located at one side of the axial direction of the bearing and abuts against the outer ring.

6. The end cap assembly according to claim 5, characterized in that: One end of the outer ring away from the limiting portion is riveted to the cover body.

7. The end cap assembly according to claim 5, characterized in that: The end cap assembly further comprises: A baffle is provided on a side of the bearing away from the limiting portion, the baffle is connected to the cover body and abuts against a side of the outer ring away from the limiting portion.

8. The end cap assembly according to claim 1, characterized in that: A sealing ring is provided between the outer peripheral wall of the outer ring and the inner wall of the mounting hole.

9. The end cap assembly according to claim 8, characterized in that: There are multiple sealing rings, and the multiple sealing rings are arranged at intervals along the axial direction of the bearing.

10. The end cap assembly according to claim 1, characterized in that: The outer peripheral wall of the outer ring is bonded to the inner wall of the mounting hole.

11. A motor, characterized in that: Comprising an end cap assembly according to any one of claims 1-10.

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