Motor and equipment

Abstract

The utility model discloses a motor and equipment, and the motor comprises a stator assembly which is provided with a housing. The rotor assembly is rotationally arranged in the stator assembly, and the rotor assembly is provided with a rotating shaft; wherein one end of the rotating shaft extends out of the shell, the shell is provided with a first sealing piece used for sealing a gap between the rotating shaft and the shell, and the shell is provided with an airtight hole used for checking airtightness. According to the technical scheme of the utility model, the first sealing element is arranged in the gap between the rotating shaft and the shell, so that the possibility that external water vapor and dust enter the motor is effectively avoided, the protection level of the motor is improved, and the service life of the motor in a severe environment is further ensured.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a motor and equipment. Background Art

[0002] Traditional motors generally use a cylindrical casing with end covers at both ends to seal it. However, in automobiles, energy storage and other working environments that have high requirements for motors, the gaps at the connection between the two end covers of the motor and the casing are easily invaded by dust and water vapor. Utility Model Content

[0003] The main purpose of the utility model is to provide a motor, which aims to reduce the possibility of dust and water vapor intruding into the motor and ensure the service life of the motor.

[0004] To achieve the above purpose, the motor proposed by the utility model comprises

[0005] A stator assembly, the stator assembly having a housing;

[0006] A rotor assembly, the rotor assembly is rotatably disposed in the stator assembly, and the rotor assembly has a rotating shaft;

[0007] One end of the rotating shaft extends out of the housing, the housing is provided with a first sealing member for sealing a gap between the rotating shaft and the housing, and the housing is provided with an airtight hole for checking airtightness.

[0008] Optionally / in one embodiment, a mounting piece is provided at the end of the housing, the rotating shaft is rotatably connected to the mounting piece, and the first sealing piece is disposed in the mounting piece.

[0009] Optionally / in one embodiment, a first bearing is disposed on a side wall of the rotating shaft, a first bearing groove is formed on one side of the mounting member, and the first bearing is disposed in the first bearing groove.

[0010] Optionally / in one embodiment, a first sealing groove is formed on a side of the mounting member facing away from the first bearing groove, the first sealing member is fixedly disposed in the first sealing groove, and the rotating shaft passes through the first sealing member and extends out of the housing.

[0011] Optionally / in one embodiment, the first sealing member includes a main body, an inner wall of the main body protrudes toward the rotating shaft to form an extension portion, and the extension portion has a first lip edge that contacts the rotating shaft.

[0012] Optionally / in one embodiment, the extension portion is further provided with a second lip that abuts against the rotating shaft.

[0013] Optionally / in one embodiment, an oil storage chamber is formed between the first lip and the second lip.

[0014] Optionally / in one embodiment, an elastic fastener is provided on the outer periphery of the second lip, and the elastic fastener is used to maintain the second lip in a state of interference with the rotating shaft.

[0015] Optionally / in one embodiment, the body is ring-shaped.

[0016] Optionally / in one embodiment, a support frame is provided between the main body and the extension portion.

[0017] Optionally / in one embodiment, the outer shell includes a shell and an end cover, the first seal is arranged at one end of the shell, the other end of the shell is open and provided with a plurality of connecting parts, the connecting parts are used to install the end cover, and one end of the rotating shaft is rotatably connected to the end cover.

[0018] Optionally / in one embodiment, the end cover has an annular boss that cooperates with the shell, and a second sealing member is provided between the annular boss and the shell.

[0019] Optionally / in one embodiment, a second bearing is disposed at the end of the rotating shaft, the end cover has a second bearing groove, and the second bearing is disposed in the second bearing groove.

[0020] Optionally / in one embodiment, at least one friction ring is provided on the outer periphery of the first bearing and the second bearing, and the friction ring is used to increase the friction between the first bearing and the first bearing groove, and between the second bearing and the second bearing groove.

[0021] Optionally / in one embodiment, the airtight hole is provided on the end cover, the airtight hole is communicated with the interior of the shell, and the end cover is further provided with a third sealing member for sealing the airtight hole.

[0022] Optionally / in one embodiment, the third sealing member has a head and a connecting portion, the connecting portion is coaxially arranged on one side of the head, the connecting portion is fixedly connected to the airtight hole, and the diameter of the head is greater than the diameter of the airtight hole.

[0023] Optionally / in one embodiment, a second sealing groove is formed in a side depression where the head portion is connected to the connecting portion, a sealing ring is arranged in the second sealing groove, and the sealing ring is in contact between the head portion and the end cover.

[0024] The utility model also provides a device, comprising the motor.

[0025] The technical solution of the utility model effectively isolates the possibility of external water vapor and dust entering the interior of the motor by arranging a first seal in the gap between the rotating shaft and the housing, thereby improving the protection level of the motor and further ensuring the service life of the motor in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the motor in the utility model;

[0028] Figure 2 It is an exploded view of the overall structure of the motor in the utility model;

[0029] Figure 3 It is a schematic diagram of the structural section of the motor in the utility model;

[0030] Figure 4 It is a schematic structural cross-sectional diagram of the stator assembly of the motor in the utility model;

[0031] Figure 5 It is a bottom perspective schematic diagram of the stator assembly of the motor in the present utility model;

[0032] Figure 6 It is a structural schematic diagram of the end cover of the motor in the utility model;

[0033] Figure 7 It is a structural schematic diagram of the mounting part of the motor in the utility model;

[0034] Figure 8 This is a schematic diagram of the structure of the first sealing member of the motor in the utility model;

[0035] Fig. 9 This is a structural cross-sectional view of the first sealing member of the motor in the utility model;

[0036] Fig.10 It is a structural schematic diagram of the connecting member of the motor in the utility model;

[0037] Fig.11 This is a structural cross-sectional view of the third sealing component of the motor in the utility model.

[0038] Description of Figure Numbers:

[0039]

[0040]

[0041] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0045] The motor is a common device that is used in various fields. The motor can convert electrical energy into mechanical energy to drive the operation of related components. The motor has good reliability and long service life. Therefore, the motor also has a variety of application environments.

[0046] For example, new energy vehicles use motors to drive wheels to complete driving, and the electric windows, electric seats, electric fans, electric pumps and electric power steering systems in cars are all completed by motors; in the field of household appliances, such as electric fans, refrigerators, washing machines, range hoods, vacuum cleaners and other equipment are equipped with motors; in the field of industrial manufacturing, motors are used to drive various mechanical equipment, such as machine tools, conveyor belts, fans, pumps and compressors, etc., to support the manufacturing and production process; and in the field of aerospace, motors are used to drive aircraft engines, flaps, landing gear and avionics. It can be seen that motors have many application paths and their working environments are also diverse.

[0047] A motor generally includes a rotor assembly and a stator assembly. The stator assembly is fixed, and a space for accommodating the rotor is formed inside the stator assembly. The rotor is rotatably arranged in the stator. In simple terms, when power is supplied, both the rotor and the stator will generate magnetic fields. Since the magnetic fields between the rotor and the stator repel each other, the rotor will rotate in the stator, thereby converting electrical energy into mechanical energy. Specifically, the rotor has a rotating shaft, which is connected to relevant external components. Therefore, when the rotor rotates, the rotating shaft will rotate accordingly, thereby driving the external components to move and do work.

[0048] Specifically, the stator assembly generally includes a stator core and a stator winding, which is arranged on the stator core, and is used to be energized and generate a magnetic field; the stator core and the stator winding are both fixed, that is, after the stator winding is energized, the stator core and the stator winding will not move; accordingly, the rotor assembly includes a rotating shaft, a rotor core and a rotor winding, the rotating shaft coincides with the central axis of the stator assembly, the rotor core is arranged around the rotating shaft, and the rotor winding is arranged on the rotor core; when the rotor winding and the stator winding are energized, both will generate a magnetic field, and then the rotor assembly starts to rotate under the action of the magnetic field, so that the motor can convert electrical energy into mechanical energy.

[0049] Since motors are used in a variety of application scenarios, when the motor is in a high humidity environment or a high dust environment, the motor may short-circuit or suffer excessive wear due to the entry of water vapor or dust, thereby affecting the service life of the motor.

[0050] Reference Figure 1 , Figure 2In order to solve the above problems, the utility model proposes a motor, which includes a stator assembly 1 and a rotor assembly 2; wherein the stator assembly 1 has a housing 11, and the rotor assembly 2 is rotatably arranged in the stator assembly 1, and the rotor assembly 2 has a rotating shaft 21, one end of which extends out of the housing 11 to drive the connection of external related parts; in the utility model, the outer circumferential side wall of the end of the rotating shaft 21 extending out of the housing 11 is provided with a first bearing 22, so that the rotor assembly 2 can rotate compared with the stator assembly 1; in order to reduce the possibility of water vapor or dust entering the interior of the motor and causing motor failure, a first sealing member 33 for sealing the gap between the rotating shaft 21 and the housing 11 is provided on the housing 11, so that the rotating shaft 21 can drive the external related parts to rotate, and the possibility of external water vapor and dust entering the interior of the motor is effectively isolated through the first sealing member 33, thereby improving the protection level of the motor, and further ensuring the service life of the motor in harsh environments.

[0051] Reference Figures 1 to 3 Specifically, in the present invention, the housing 11 is similar to a cylinder, so the housing 11 has two ends; it should be noted that, in addition to the above-mentioned cylinder, other three-dimensional shapes of the housing 11 can also be selected according to actual design needs and other factors, as long as the driving principle of the motor is met; on the above basis, in order to install the first seal 33, a mounting member 3 is provided on the housing 11, and the mounting member 3 is coaxially arranged with the housing 11, and the mounting member 3 and the rotating shaft 21 are also coaxially arranged, thereby having good coaxiality between the mounting member 3, the housing 11 and the rotating shaft 21, thereby ensuring the stable operation of the rotor assembly 2 in the housing 11; accordingly, the rotating shaft 21 is rotatably connected to the mounting member 3, and the first seal 33 is arranged in the mounting member 3 and seals the rotating shaft 21.

[0052] Reference Figures 3 to 7 Specifically, a first bearing groove 31 is formed on the side of the mounting member 3 facing the rotor assembly 2, and a first sealing groove 32 is formed on the side of the mounting member 3 facing away from the rotor assembly 2, and the first bearing 22 is arranged in the first bearing groove 31, so that during the installation process, the end of the rotating shaft 21 will pass through the first bearing groove 31 and the first sealing groove 32 in sequence until the first bearing 22 is installed in the first bearing groove 31; that is, the end of the rotating shaft 21 will pass through the mounting member 3 and be connected with external components, so that the rotating shaft 21 will drive the external components to move when it rotates; the first sealing member 33 is arranged in the first sealing groove 32, and the first sealing member 33 can seal the rotating shaft 21, thereby reducing the possibility of water vapor or dust entering the interior of the motor through the gap between the rotating shaft 21 and the mounting member 3.

[0053] Reference Figure 8 and Fig. 9In the present invention, the first sealing member 33 includes a main body 331. In the present embodiment, the main body 331 is ring-shaped, and the outer side wall of the main body 331 is fixedly connected to the first sealing groove 32. It should be noted that the main body 331 can be embedded in the first sealing groove 32 by interference fit, or the main body 331 can be fixed in the first sealing groove 32 by gluing. There are other fixing methods, and the main body 331 can be fixed in the first sealing groove 32. The inner wall of the main body 331 protrudes toward the rotating shaft 21 along the radial direction of the main body 331 to form an extension portion 332, and the extension portion 332 has a first lip edge 333 that contacts the rotating shaft 21. When the rotating shaft 21 rotates, the first lip edge 333 will always maintain a contact state with the rotating shaft 21 to complete the dynamic seal, thereby reducing the possibility of water vapor and dust entering the motor through the gap between the rotating shaft 21 and the mounting member 3, thereby ensuring the service life of the motor.

[0054] In order to maintain the sealing effect of the first lip 333 on the rotating shaft 21, the first lip 333 is made of rubber material. However, during the dynamic sealing process between the first lip 333 and the rotating shaft 21, the first lip 333 will always rub against the outer peripheral wall of the rotating shaft 21, so that during the operation of the motor, the first lip 333 will always rub against the outer peripheral wall of the rotating shaft 21, and the first lip 333 will always rub against and generate heat, and the first lip 333 will be subject to the stress caused by the rotation of the rotating shaft 21, and then the first lip 333 will be easily aged and lose the sealing effect on the rotating shaft 21. In order to solve the aging problem of the first lip 333, a second lip 334 that contacts the rotating shaft 21 is further extended on the extension portion 332, and the second lip 334 is also made of rubber material. The second lip 334 is made of a rubber material, and there is an angle between the first lip 333 and the second lip 334, so that a space is formed between the first lip 333 and the second lip 334, and lubricating oil or grease can be filled in the space, that is, an oil storage chamber 335 is formed between the first lip 333 and the second lip 334, and the oil storage chamber 335 is used to store lubricating oil or grease; the design of the oil storage chamber 335 can greatly slow down the aging speed of the first seal 33 while completing the dynamic seal with the rotating shaft 21, thereby ensuring the service life of the first seal 33, and the lubricating oil and grease can further improve the sealing effect of the first seal 33 on the gap between the rotating shaft 21 and the housing 11.

[0055] In order to further improve the sealing effect of the first seal 33 on the gap between the rotating shaft 21 and the housing 11 on the basis of the above, an elastic fastener 336 is arranged on the periphery of the second lip 334; in the utility model, the elastic fastener 336 is ring-shaped, and the setting of the elastic fastener 336 enables the second lip 334 to always maintain a state of interference with the rotating shaft 21, thereby further improving the sealing effect of the first seal 33 on the gap between the rotating shaft 21 and the housing 11.

[0056] Correspondingly, from the perspective of the service life of the first sealing member 33, taking into account the angle between the extension portion 332 and the main body 331, in order to reduce the possibility of deformation between the extension portion 332 and the main body 331 due to stress during long-term operation, a support frame 337 is provided between the main body 331 and the extension portion 332. In this embodiment, the support frame 337 is L-shaped, and the two sides of the support frame 337 are respectively fitted with the main body 331 and the extension portion 332, thereby providing support between the main body 331 and the extension portion 332; it should be noted that other shapes of support frames 337 can also be used. In this embodiment, the extension portion 332 extends out along one end face of the main body 331, thereby naturally forming a right angle between the main body 331 and the extension portion 332 In other cases, such as changes in the selection of rubber materials, the angle between the extension portion 332 and the main body 331 may change, so that the length of the first lip 333 and the second lip 334 and the angle between the two may also change. In this case, it is necessary to reset the shape of the support frame 337, and the shape of the support frame 337 can be changed according to actual design requirements; based on the above ideas, the position of the extension portion 332 in the inner circle of the main body 331 may also change, and the change of the extension portion 332 may cause the first lip 333 and the second lip 334 to change, and both can be redesigned according to actual design and use requirements. The above is only an explanation of the present invention, and is not intended to limit the scope of protection of the present invention, and will not be repeated here.

[0057] It should be noted that the above description is about the situation that the first bearing groove 31 on the mounting member 3 is arranged inside the housing 11, and the first sealing groove 32 faces outside the housing 11. In this case, it is convenient to install the first sealing member 33, and it is convenient to replace, repair and add grease to the first sealing member 33. However, under certain requirements, the first bearing groove 31 can also face outside the housing 11, so that the first sealing groove 32 is arranged inside the housing 11, thereby reducing the possibility of failure of the first sealing member 33 due to the influence of external environmental conditions.

[0058] Reference Figure 3 and Figure 7 In addition, the housing 11 is generally made of plastic, and in order to ensure the structural strength between the rotating shaft 21 and the housing 11, the mounting member 3 is made of metal; therefore, the housing 11 can be manufactured using an injection molding process, and during the injection molding process, the mounting member 3 is arranged on the end of the housing 11, so that the mounting member 3 is directly integrally formed with the housing 11; in order to improve the connection strength between the mounting member 3 and the housing 11, a plurality of connecting protrusions 34 are evenly arranged on the outer periphery of the mounting member 3. The arrangement of the connecting protrusions 34 allows the housing 11 and the mounting member 3 to have a larger contact area, and can reduce the possibility of the mounting member 3 falling off the housing 11, thereby improving the connection strength between the mounting member 3 and the housing 11.

[0059] Reference Figure 2 , Figure 3 and Figure 6 In the present invention, the housing 11 includes a shell 111 and an end cover 112. One end of the shell 111 is open so that the rotor assembly 2 can be installed in the stator assembly 1. The end cover 112 is used to close the opening of the shell 111. In order to install the end cover 112, a plurality of connectors 1111 are provided at the end of the shell 111 (see Fig.10 ), similar to the mounting member 3, in order to ensure the connection strength between the end cover 112 and the shell 111, the connecting member 1111 is also made of metal, and can be directly set on the end of the shell 111 during the injection molding process of the shell 111; bolts can be set on the end cover 112, so that the end cover 112 can be fixed to the shell 111 through the cooperation of the bolts and the connecting member 1111. Therefore, considering that the connecting member 1111 is a cylinder in the present invention, and the connecting member 1111 will be subjected to torsion during the connection process with the bolt, in order to reduce the possibility of rotation of the connecting member 1111 during the connection process with the bolt, a limited position plane 1112 is set on the outer circumference of the connecting member 1111, so that the shell 111 will form a part that cooperates with the limited position plane 1112 during the injection molding process to prevent the rotation of the connecting member 1111; based on the above idea, the connecting member 1111 can also be designed as a polygonal column to ensure that the connecting member 1111 is not easy to rotate during the connection process with the bolt.

[0060] Correspondingly, the end cover 112 has a second bearing groove 1121, and a second bearing 23 is provided on the end of the rotating shaft 21, and the second bearing 23 is arranged in the second bearing groove 1121, so that the end cover 112 and the mounting member 3 provide support for the rotating shaft 21; it should be noted that one end of the rotating shaft 21 can also extend out of the end cover 112, and the other end can be arranged in the shell 111. In other words, the mounting member 3 can be arranged on the end cover 112, and the second bearing groove 1121 is opened on the end of the shell 111 away from the end cover 112. The specific setting can be selected according to actual design requirements.

[0061] In order to ensure that the first bearing 22 and the second bearing 23 can be stably fixed in the first bearing groove 31 and the second bearing groove 1121 respectively, at least one friction ring 24 is provided on the outer periphery of the first bearing 22 and the second bearing 23. In this embodiment, two friction rings 24 are provided on the first bearing 22 and the second bearing 23. The friction ring 24 can increase the friction between the first bearing 22 and the first bearing groove 31, and the second bearing 23 and the second bearing groove 1121, so that there is no friction between the first bearing 22 and the first bearing groove 31, and the second bearing 23 and the second bearing groove 1121. Relative sliding is easy to occur, which ensures the stability of the overall structure during operation; it should be noted that adhesive can be filled between the first bearing 22 and the first bearing groove 31, and between the second bearing 23 and the second bearing groove 1121, and the possibility of relative sliding between the first bearing 22 and the first bearing groove 31, and between the second bearing 23 and the second bearing groove 1121 can also be reduced; there are many ways to prevent relative sliding between the first bearing 22 and the first bearing groove 31, and between the second bearing 23 and the second bearing groove 1121. The above is only an example, and this embodiment will not be repeated here.

[0062] Reference Figure 3 and Figure 6 In the present invention, the end cover 112 has an annular boss 1122 that matches the housing 111, and in order to seal the end cover 112 and the housing 111, a second sealing member 1123 is also provided between the annular boss 1122 and the housing 111; specifically, the second sealing member 1123 can be a rubber ring, and when the end cover 112 is installed on the housing 111, the rubber ring abuts between the two to provide a seal between the end cover 112 and the housing 111. In addition, before the end cover 112 is installed on the housing 111, a sealant can be applied around the annular boss 1122, which can also seal the gap between the end cover 112 and the housing 11.

[0063] Reference Figure 6 and Fig.11 It should be noted that an airtight hole 113 is provided on the shell 11, and the airtight hole 113 is communicated with the interior of the shell 111, so that the airtightness of the entire motor can be detected through the airtight hole 113; the airtight hole 113 can be provided on the shell 111, but in the present embodiment, the airtight hole 113 is provided on the end cover 112, and the end cover 112 is also provided with a third sealing member 114 for sealing the airtight hole 113. The provision of the third sealing member 114 will reduce the possibility of external water vapor and dust entering the interior of the motor through the airtight hole 113, thereby further ensuring the service life of the motor.

[0064] Specifically, the third sealing member 114 has a head 1141 and a connecting portion 1142, the connecting portion 1142 is arranged on one side of the head 1141, and the connecting portion 1142 is coaxially arranged with the head 1141; the connecting portion 1142 is fixedly connected to the airtight hole 113, and after the connecting portion 1142 is connected to the airtight hole 113, the head 1141 is required to seal the airtight hole 113, so the diameter of the head 1141 is larger than the diameter of the airtight hole 113; for example, the connecting portion 1142 is threadedly connected to the airtight hole 113, then when the connecting portion 1142 is connected to the airtight hole 113, the head 1141 will completely block the airtight hole 113 to prevent water vapor and dust from entering the motor through the airtight hole 113; optionally, the connecting portion 1142 and the airtight hole 113 may be fixed by interference fit and riveting, and only the fixed connection between the connecting portion 1142 and the airtight hole 113 needs to be completed.

[0065] It should be noted that in order to ensure the sealing effect of the head 1141 on the airtight hole 113, a second sealing groove 1143 is formed in the side depression where the head 1141 and the connecting part 1142 are connected, and a sealing ring 1144 is arranged in the second sealing groove 1143. When the head 1141 blocks the airtight hole 113, the sealing ring 1144 will be arranged between the head 1141 and the end cover 112, further reducing the possibility of water vapor and dust entering the motor through the airtight hole 113, thereby further ensuring the service life of the motor.

[0066] The utility model also proposes a device, which includes the above-mentioned motor. The specific structure of the motor refers to the above-mentioned embodiment. Since the device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0067] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A motor, characterized in that: include A stator assembly, the stator assembly having a housing; A rotor assembly, the rotor assembly is rotatably disposed in the stator assembly, and the rotor assembly has a rotating shaft; One end of the rotating shaft extends out of the housing, and the housing is provided with a first sealing member for sealing a gap between the rotating shaft and the housing.

2. The motor according to claim 1, characterized in that A mounting piece is disposed at the end of the housing, the rotating shaft is rotatably connected to the mounting piece, and the first sealing piece is disposed in the mounting piece.

3. The motor according to claim 2, characterized in that A first bearing is disposed on the side wall of the rotating shaft, a first bearing groove is formed on one side of the mounting member, and the first bearing is disposed in the first bearing groove.

4. The motor according to claim 3, characterized in that A first sealing groove is formed on a side of the mounting member away from the first bearing groove. The first sealing member is fixedly disposed in the first sealing groove. The rotating shaft passes through the first sealing member and extends out of the housing.

5. The motor according to claim 4, characterized in that The first sealing member includes a main body, an inner wall of the main body protrudes toward the rotating shaft to form an extension portion, and the extension portion has a first lip edge that contacts the rotating shaft.

6. The motor according to claim 5, characterized in that The extension portion is also provided with a second lip which abuts against the rotating shaft.

7. The motor according to claim 6, characterized in that An oil storage chamber is formed between the first lip and the second lip.

8. The motor according to any one of claims 6 or 7, characterized in that An elastic fastener is disposed on the outer periphery of the second lip, and the elastic fastener is used to maintain the second lip in a state of interference with the rotating shaft.

9. The motor according to any one of claims 5 to 7, characterized in that The main body is in a ring shape.

10. The motor according to claim 5, characterized in that A support frame is arranged between the main body and the extension portion.

11. The motor according to claim 4, characterized in that The housing includes a shell and an end cover, the first sealing member is arranged at one end of the shell, the other end of the shell is open and provided with a plurality of connecting members, the connecting members are used to install the end cover, and one end of the rotating shaft is rotatably connected to the end cover.

12. The motor according to claim 11, characterized in that The end cover has an annular boss matched with the shell, and a second sealing member is arranged between the annular boss and the shell.

13. The motor according to claim 12, characterized in that A second bearing is disposed at the end of the rotating shaft, the end cover has a second bearing groove, and the second bearing is disposed in the second bearing groove.

14. The motor according to claim 13, characterized in that At least one friction ring is disposed on the outer periphery of the first bearing and the second bearing, and the friction ring is used to increase the friction between the first bearing and the first bearing groove, and between the second bearing and the second bearing groove.

15. The motor according to claim 11, characterized in that The end cover is provided with an airtight hole for checking airtightness, the airtight hole is communicated with the interior of the shell, and the end cover is also provided with a third sealing member for sealing the airtight hole.

16. The motor according to claim 15, characterized in that The third sealing member comprises a head and a connecting portion, wherein the connecting portion is coaxially arranged on one side of the head, the connecting portion is fixedly connected to the airtight hole, and the diameter of the head is greater than the diameter of the airtight hole.

17. The motor according to claim 16, characterized in that The side surface where the head and the connecting portion are connected is recessed to form a second sealing groove, a sealing ring is arranged in the second sealing groove, and the sealing ring abuts between the head and the end cover.

18. A device, characterized in that Comprising a motor as described in any one of claims 1-17.

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