Bearing and motor

Abstract

The invention provides a bearing and a motor, and relates to the technical field of bearings. The bearing includes: an inner ring including a shaft hole in which a rotating shaft is mounted; the outer ring is located on the peripheral side of the inner ring and is in rolling connection with the inner ring; and the sealing part is arranged on the inner ring or the outer ring, the rotating shaft is sleeved with the sealing part, and the sealing part is used for sealing the circumferential side face of the rotating shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of bearings, and more specifically, to a bearing and a motor. Background Art

[0002] In related technologies, in many scenarios where bearings are required, a separate oil seal needs to be provided in cooperation with the bearing to meet the dynamic sealing requirements of the internal rotating shaft.

[0003] The oil seal needs to be assembled with the aid of a positioning and mounting structure on the outer side of the bearing, and the assembly process is complex and the assembly reliability is poor.

[0004] Therefore, how to overcome the above technical defects has become a technical problem to be solved urgently. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0006] To this end, a first aspect of the present invention provides a bearing.

[0007] A second aspect of the present invention provides a motor.

[0008] In view of this, a first aspect of the present invention provides a bearing, which includes: an inner ring, including a shaft hole for installing a rotating shaft; an outer ring located on the circumferential side of the inner ring, and the outer ring is in rolling connection with the inner ring; a sealing member provided on the inner ring or the outer ring, the sealing member is configured to be sleeved on the rotating shaft, and the sealing member is used to seal the circumferential side of the rotating shaft.

[0009] In this technical solution, the bearing includes an inner ring, an outer ring and rolling elements. A shaft hole is formed on the inner side of the inner ring, and the rotating shaft is inserted through the shaft hole. The inner ring can provide positioning and support for the rotating shaft. Specifically, the rotating shaft and the shaft hole are in clearance fit, interference fit or transition fit. The outer ring is arranged on the circumferential side of the inner ring, and there is a gap between the outer ring and the inner ring. The rolling elements are assembled in the gap to enable the inner ring and the outer ring to be in rolling connection. During the working process, the rotating shaft drives the inner ring to rotate relative to the outer ring. During the relative rotation of the inner ring and the outer ring, the rolling elements reduce the resistance between the inner ring and the outer ring through rolling to reduce the rotation resistance of the rotating shaft.

[0010] On this basis, the bearing further includes a sealing member, which is integrated on the outer ring or the inner ring. That is, after the production and assembly of the bearing are completed, the sealing member is integrated with the inner ring or the outer ring, and the inner diameter of the sealing member is adapted to the diameter of the shaft hole. During the process of inserting the rotating shaft into the inner ring, the sealing member is synchronously sleeved on the outer side of the rotating shaft, and the sealing member is in contact with the circumferential side of the rotating shaft to meet the dynamic sealing requirements of the rotating shaft.

[0011] It can be seen that by integrating the sealing component on the inner ring or the outer ring, the modular design of the sealing component on the bearing can be realized in the present application, eliminating the process of separately selecting and installing the oil seal structure outside the rotating shaft. Thus, on the one hand, the assembly process and assembly difficulty of the bearing are simplified, and on the other hand, the situation of misinstalling or missing the installation of the oil seal can be avoided. Thereby solving the technical defects existing in the related art. Furthermore, the technical effects of optimizing the bearing structure and improving the practicability and reliability of the bearing are achieved.

[0012] At the same time, compared with the dynamic sealing solution of independently arranging the oil seal outside the bearing, the integrated design of the sealing component can improve the structural compactness of the relevant part, thereby reducing the occupied space, and further providing convenient conditions for the miniaturization design of the relevant product.

[0013] In addition, the above-mentioned bearing provided by the present invention may also have the following additional technical features:

[0014] In some technical solutions of the present invention, optionally, the sealing component is connected to the outer ring; the sealing component is spaced apart from the inner ring.

[0015] In this technical solution, the sealing component is integrated on the outer ring, and the sealing component extends from the outer ring towards the circumferential side of the rotating shaft. At the same time, the sealing component is spaced apart from the inner ring.

[0016] Compared with the inner ring, the outer ring has a relatively larger size. Setting the sealing component on the outer ring can reduce the integration difficulty of the sealing component, which is beneficial to reducing the production cost of the bearing and improving the yield rate of the bearing.

[0017] By leaving a gap between the sealing component and the inner ring, it is possible to prevent the sealing component from contacting the rotating inner ring and avoid interference between the sealing component and the inner ring. On the one hand, the reliability of the dynamic sealing of the sealing component is improved, and on the other hand, the rotational resistance of the bearing is reduced.

[0018] In some technical solutions of the present invention, optionally, the outer ring includes a first end face, the inner ring includes a second end face, and in the axial direction of the bearing, the first end face and the second end face are arranged in a staggered manner; at least a part of the sealing component is located between the first end face and the second end face.

[0019] In this technical solution, the outer ring includes a first end face, the inner ring includes a second end face, the first end face and the second end face face the same direction, and the first end face and the second end face are staggered in the axial direction of the bearing to form a notch between the first end face and the second end face. Specifically, an outer ring with a relatively large axial length and an inner ring with a relatively small axial length can be set. During the assembly process, one side of the inner ring and the outer ring is aligned, and the length difference can form the above-mentioned notch on the other side.

[0020] On this basis, the sealing component connected to the outer ring is at least partially located in the notch. By at least partially integrating the sealing component into the notch, on the one hand, the space occupied by the sealing component outside the bearing can be reduced, providing convenient conditions for the miniaturized design of related products. On the other hand, the outer ring can position and protect the sealing component in the notch to reduce the possibility of misalignment, detachment, and damage of the sealing component, thereby improving the reliability and service life of the bearing.

[0021] In some technical solutions of the present invention, optionally, the inner ring surface of the outer ring includes a groove; the sealing component is snap-fitted into the groove.

[0022] In this technical solution, a groove is provided on the inner ring surface of the outer ring. The groove surrounds the circumference of the rotating shaft, and the inner ring avoids the area between the groove and the rotating shaft.

[0023] Among them, the shape of the groove is adapted to the outer contour shape of the sealing component. During the assembly process, the sealing component can be pushed into the groove to complete the snap-fitting of the sealing component on the outer ring.

[0024] It can be seen that by providing the groove, the sealing component can be positioned at a predetermined installation position, reducing the possibility of misalignment or even detachment of the sealing component. At the same time, by providing the groove, the outer contour of the sealing component can be reasonably utilized to simplify the positioning and installation structure of the sealing component and reduce the assembly complexity of the sealing component.

[0025] In some technical solutions of the present invention, optionally, in the axial direction of the bearing, the distance between the sealing component and the inner ring is a first interval, and the inner diameter of the inner ring is R; the range of the first interval L is: greater than or equal to 0.01R and less than or equal to 0.5R.

[0026] In this technical solution, in the axial direction of the bearing, the distance between the sealing component and the second end face is the first interval L, and the first interval is associated with the diameter R of the inner ring.

[0027] Specifically, the first interval needs to be greater than or equal to 0.01×R and less than or equal to 0.5×R. By defining that the first interval is greater than or equal to 0.01R, sufficient deformation allowance can be reserved for the sealing component to avoid interference between the deformed sealing component and the end face of the inner ring, thereby improving the reliability and sealing effectiveness of the bearing. By defining that the first interval is less than or equal to 0.5R, the structural compactness of the bearing can be improved on the basis of meeting the dynamic sealing requirements, providing convenient conditions for the miniaturized design and lightweight design of the bearing.

[0028] In some technical solutions of the present invention, optionally, the sealing component includes: a support portion, connected to the inner ring or the outer ring, and the support portion is a rigid structure; a sealing portion, provided on the support portion, and the sealing portion is configured to be sleeved on the circumferential side of the rotating shaft, and the sealing portion is a flexible structure.

[0029] In this technical solution, the sealing member includes a supporting portion and a sealing portion. The supporting portion is connected to the inner ring or the outer ring, the sealing portion is connected to the supporting portion, and the sealing portion is arranged outside the supporting portion. The supporting portion is used to position and support the sealing portion so that the sealing portion can be maintained at a predetermined position to ensure the reliability of dynamic sealing. Among them, the supporting portion is spaced apart from the rotating shaft, and the sealing portion is between the supporting portion and the rotating shaft, that is, the sealing portion is in direct contact with the circumferential side surface of the rotating shaft.

[0030] On this basis, the supporting portion is a rigid structure. Specifically, the supporting portion can be processed from cold-rolled steel plates. Selecting a rigid material to prepare the supporting portion can improve the structural strength of the sealing member and reduce the possibility of the sealing member being bent or even broken.

[0031] Correspondingly, the sealing portion is a flexible structure. Specifically, rubber can be coated on the supporting portion to form a sealing portion made of rubber. Selecting a flexible material to prepare the supporting portion can, on the one hand, reduce the resistance of the sealing member to the rotating shaft by virtue of the deformation characteristics of the flexible structure, and on the other hand, reduce the damage of the supporting member to the rotating shaft.

[0032] In some technical solutions of the present invention, optionally, the inner diameter of the supporting portion is greater than or equal to the inner diameter of the shaft hole; the inner diameter of the sealing portion is less than the inner diameter of the shaft hole.

[0033] In this technical solution, the supporting portion is annular, the outer diameter of the supporting portion is adapted to the size of the groove on the inner side of the outer ring, and the inner diameter of the supporting portion is greater than or equal to the inner diameter of the shaft hole to avoid the supporting portion affecting the rotation of the rotating shaft.

[0034] On this basis, in the case where the rotating shaft is not installed, the inner diameter of the sealing portion is less than the inner diameter of the shaft hole to ensure that the sealing portion is in close contact with the circumferential side surface of the rotating shaft, realizing effective and reliable dynamic sealing. Among them, during the process of inserting the rotating shaft into the bearing, the flexible sealing portion changes the inner diameter size through deformation to adapt to the rotating shaft in the shaft hole.

[0035] In some technical solutions of the present invention, optionally, in the axial direction of the bearing, the sealing portion is located between the supporting portion and the inner ring.

[0036] In this technical solution, in the axial direction of the bearing, the sealing portion is between the supporting portion and the second end face, that is, the sealing portion in the notch is blocked by the supporting portion.

[0037] During the process of installing the rotating shaft, the supporting portion located on the outside can limit the deformation amplitude of the sealing portion, avoiding the sealing portion from being misaligned or even disengaged, thereby improving the positioning effect and supporting effect of the supporting portion on the sealing portion.

[0038] After the assembly is completed, the supporting portion can play a protective role outside the sealing portion, avoiding the sealing portion from being damaged by collision. At the same time, the supporting portion can block dust from entering the notch, ensuring the effectiveness of dynamic sealing.

[0039] In some technical solutions of the present invention, optionally, in the radial direction of the bearing, the support portion is located between the outer ring and the sealing portion.

[0040] In this technical solution, both the support portion and the sealing portion are annular, and the support portion and the sealing portion are nested. After assembly, the sealing portion is between the support portion and the rotating shaft, that is, the support portion is connected to the outer ring, and the sealing portion is in contact with the rotating shaft.

[0041] By providing the support portion in contact with the outer ring, the positioning stability of the sealing component can be improved, and the deformation of the flexible structure can be avoided from affecting the positioning effect. By providing the sealing portion between the support portion and the rotating shaft, the support portion can be prevented from contacting the rotating shaft, and the rigid support portion can be prevented from scratching the rotating shaft.

[0042] The second aspect of the present invention provides a motor, which includes: a bearing in any of the above technical solutions; a rotating shaft passing through the inner ring, and the sealing component abuts against the circumferential side surface of the rotating shaft.

[0043] In this technical solution, a motor provided with the bearing in any of the above technical solutions is proposed. Therefore, the motor has the advantages of the bearing in any of the above technical solutions, and the motor can achieve the technical effects that the bearing in any of the above technical solutions can achieve. To avoid repetition, it will not be elaborated here.

[0044] On this basis, the motor further includes a rotating shaft, the rotating shaft is arranged in the shaft hole, the sealing component is sleeved on the circumferential side surface of the rotating shaft, and the sealing component is in contact with the circumferential side surface of the rotating shaft to meet the dynamic sealing requirements of the rotating shaft through the sealing component.

[0045] The additional aspects and advantages of the present invention will become obvious in the following description part, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0047] Figure 1 Shows a schematic structural diagram of a motor according to an embodiment of the present invention;

[0048] Figure 2 For Figure 1 A cross-sectional view of the motor in the A-A direction in the shown embodiment;

[0049] Figure 3 Shows a schematic structural diagram of a bearing according to an embodiment of the present invention;

[0050] Figure 4Shows a schematic structural diagram of a bearing according to an embodiment of the present invention;

[0051] Figure 5 Shows a schematic structural diagram of a bearing according to an embodiment of the present invention;

[0052] Figure 6 Shows a schematic structural diagram of a bearing according to an embodiment of the present invention;

[0053] Figure 7 Shows a schematic structural diagram of a motor according to an embodiment of the present invention;

[0054] Figure 8 is Figure 7 A cross-sectional view of the motor in the B-B direction in the illustrated embodiment.

[0055] Wherein, Figures 1 to 8 The corresponding relationship between the reference numerals and the component names in is:

[0056] 100 Bearing, 110 Inner ring, 1102 Second end face, 1104 Axial hole, 120 Outer ring, 1202 First end face, 1204 Groove, 130 Sealing member, 132 Support portion, 134 Sealing portion, 200 Motor, 210 Rotating shaft. Detailed implementation manners

[0057] In order to be able to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0058] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0059] Next, refer to Figures 1 to 8 Describe the bearing and the motor according to some embodiments of the present invention.

[0060] As Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8As shown in the figure, an embodiment of the present invention provides a bearing 100, which includes: an inner ring 110, including a shaft hole 1104 for installing a rotating shaft 210; an outer ring 120 located on the circumferential side of the inner ring 110, and the outer ring 120 is in rolling connection with the inner ring 110; a sealing member 130 provided on the inner ring 110 or the outer ring 120, and the sealing member 130 is configured to be sleeved on the rotating shaft 210 for sealing the circumferential side of the rotating shaft 210.

[0061] Figure 1 The structural schematic diagram of a motor 200 according to an embodiment of the present invention is shown.

[0062] Figure 2 is Figure 1 The cross-sectional view of the motor 200 in the embodiment shown in the A-A direction.

[0063] Figure 3 The structural schematic diagram of a bearing 100 according to an embodiment of the present invention is shown, Figure 3 in which the arrow a indicates the axial direction of the bearing 100, and the arrow b indicates the radial direction of the bearing 100.

[0064] Figure 7 The structural schematic diagram of a motor according to an embodiment of the present invention is shown.

[0065] Figure 8 is Figure 7 The cross-sectional view of the motor in the embodiment shown in the B-B direction.

[0066] In this embodiment, the bearing 100 includes an inner ring 110, an outer ring 120 and rolling elements. A shaft hole 1104 is formed inside the inner ring 110, and the rotating shaft 210 is inserted into the shaft hole 1104. The inner ring 110 can provide positioning and support for the rotating shaft 210. Specifically, the rotating shaft 210 and the shaft hole 1104 are in clearance fit, interference fit or transition fit. The outer ring 120 is arranged on the circumferential side of the inner ring 110, and there is a gap between the outer ring 120 and the inner ring 110 for assembling rolling elements to enable rolling connection between the inner ring 110 and the outer ring 120. During the working process, the rotating shaft 210 drives the inner ring 110 to rotate relative to the outer ring 120. During the relative rotation of the inner ring 110 and the outer ring 120, the rolling elements reduce the resistance between the inner ring 110 and the outer ring 120 by rolling to reduce the rotation resistance of the rotating shaft 210.

[0067] On this basis, the bearing 100 further includes a sealing member 130, which is integrated on the outer ring 120 or the inner ring 110. That is, after the production and assembly of the bearing 100 are completed, the sealing member 130 is integral with the inner ring 110 or the outer ring 120, and the inner diameter of the sealing member 130 is adapted to the aperture diameter of the shaft hole 1104. During the process of inserting the rotating shaft 210 into the inner ring 110, the sealing member 130 is synchronously sleeved on the outer side of the rotating shaft 210, and the sealing member 130 is in contact with the circumferential side surface of the rotating shaft 210 to meet the dynamic sealing requirements of the rotating shaft 210.

[0068] It can be seen that in the present application, by integrating the sealing member 130 on the inner ring 110 or the outer ring 120, a modular design of the sealing member 130 on the bearing 100 can be realized, eliminating the process of separately selecting and installing an oil seal structure on the outer side of the rotating shaft 210. Thus, on the one hand, the assembly process and assembly difficulty of the bearing 100 are simplified, and on the other hand, the situation of misinstalling or missing the installation of the oil seal can be avoided. Thereby solving the technical defects existing in the related art. Furthermore, the technical effects of optimizing the structure of the bearing 100 and improving the practicability and reliability of the bearing 100 are achieved.

[0069] At the same time, compared with the dynamic sealing solution of independently arranging an oil seal outside the bearing 100, the integrated design of the sealing member 130 can improve the structural compactness of the relevant components, thereby reducing the occupied space, and further providing convenient conditions for the miniaturization design of the relevant products.

[0070] Specifically, Figure 1 and Figure 2 in, the sealing member 130 is integrated on the outer ring 120, Figure 7 and Figure 8 in, the sealing member 130 is integrated on the inner ring 110. As Figure 3 and Figure 4 shown, in some embodiments of the present invention, optionally, the sealing member 130 is connected to the outer ring 120; the sealing member 130 is spaced apart from the inner ring 110.

[0071] Figure 4 shows a schematic structural diagram of the bearing 100 according to an embodiment of the present invention, Figure 4 in which the arrow a shows the axial direction.

[0072] In this embodiment, the sealing member 130 is integrated on the outer ring 120, and the sealing member 130 extends inward from the outer ring 120 to the circumferential side surface of the rotating shaft 210. At the same time, the sealing member 130 is spaced apart from the inner ring 110.

[0073] Compared with the inner ring 110 , the outer ring 120 is relatively larger in size. Disposing the sealing component 130 on the outer ring 120 can reduce the difficulty of integrating the sealing component 130 , which is beneficial to reducing the production cost of the bearing 100 and improving the yield rate of the bearing 100 .

[0074] By leaving a gap between the sealing component 130 and the inner ring 110 , the sealing component 130 can be prevented from contacting the rotating inner ring 110 , and the sealing component 130 and the inner ring 110 can be prevented from interfering with each other. On the one hand, the reliability of the dynamic seal of the sealing component 130 is improved, and on the other hand, the rotational resistance of the bearing 100 is reduced.

[0075] like Figure 3 and Figure 4 As shown, in some embodiments of the present invention, optionally, the outer ring 120 includes a first end face 1202, the inner ring 110 includes a second end face 1102, and in the axial direction of the bearing 100, the first end face 1202 and the second end face 1102 are staggered; the sealing component 130 is at least partially located between the first end face 1202 and the second end face 1102.

[0076] In this embodiment, the outer ring 120 includes a first end face 1202, and the inner ring 110 includes a second end face 1102. The first end face 1202 and the second end face 1102 face the same direction, and the first end face 1202 and the second end face 1102 are staggered in the axial direction of the bearing 100 to form a gap between the first end face 1202 and the second end face 1102. Specifically, an outer ring 120 with a larger axial length and an inner ring 110 with a smaller axial length may be provided. During the assembly process, one side of the inner ring 110 and the outer ring 120 are aligned, and the length difference can form the above-mentioned gap on the other side.

[0077] On this basis, the sealing component 130 connected to the outer ring 120 is at least partially located in the notch. By integrating the sealing component 130 at least partially in the notch, on the one hand, the space occupied by the sealing component 130 outside the bearing 100 can be reduced, providing convenient conditions for the miniaturization design of related products. On the other hand, the outer ring 120 can position and protect the sealing component 130 in the notch to reduce the possibility of dislocation, falling off and damage of the sealing component 130, thereby improving the reliability and service life of the bearing 100.

[0078] like Figure 4 As shown, in some embodiments of the present invention, optionally, the inner ring surface of the outer ring 120 includes a groove 1204 ; the sealing component 130 is snap-fitted into the groove 1204 .

[0079] In this embodiment, a groove 1204 is disposed on the inner ring surface of the outer ring 120 . The groove 1204 surrounds the circumference of the rotating shaft 210 , and the inner ring 110 avoids the area between the groove 1204 and the rotating shaft 210 .

[0080] Among them, the shape of the groove 1204 is adapted to the outer contour shape of the sealing member 130. During the assembly process, the sealing member 130 can be pushed into the groove 1204 to complete the clamping of the sealing member 130 on the outer ring 120.

[0081] Thus, by providing the groove 1204, the sealing member 130 can be positioned at a predetermined installation position, reducing the possibility of misalignment or even detachment of the sealing member 130. At the same time, by providing the groove 1204, the outer contour of the sealing member 130 can be reasonably utilized to simplify the positioning and installation structure of the sealing member 130 and reduce the assembly complexity of the sealing member 130.

[0082] Such as Figure 1 and Figure 4 shown, in some embodiments of the present invention, optionally, in the axial direction of the bearing 100, the distance between the sealing member 130 and the inner ring 110 is a first interval L, and the inner diameter of the inner ring 110 is R; the range of the first interval is: greater than or equal to 0.01R and less than or equal to 0.5R.

[0083] In this embodiment, in the axial direction of the bearing 100, the distance between the sealing member 130 and the second end face 1102 is the first interval L, and the first interval is associated with the diameter R of the inner ring 110.

[0084] Specifically, the first interval needs to be greater than or equal to 0.01×R and less than or equal to 0.5×R. By defining that the first interval is greater than or equal to 0.01R, sufficient deformation allowance can be left for the sealing member 130 to avoid interference between the deformed sealing member 130 and the end face of the inner ring 110, thereby improving the reliability and sealing effectiveness of the bearing 100. By defining that the first interval is less than or equal to 0.5R, the structural compactness of the bearing 100 can be improved on the basis of meeting the dynamic sealing requirements, providing convenient conditions for the miniaturization design and lightweight design of the bearing 100.

[0085] Such as Figure 4 shown, in some embodiments of the present invention, optionally, the sealing member 130 includes: a support portion 132, connected to the inner ring 110 or the outer ring 120, and the support portion 132 is a rigid structure; a sealing portion 134, provided on the support portion 132, and the sealing portion 134 is configured to be sleeved on the circumferential side surface of the rotating shaft 210, and the sealing portion 134 is a flexible structure.

[0086] In this embodiment, the sealing member 130 includes a support portion 132 and a sealing portion 134. The support portion 132 is connected to the inner ring 110 or the outer ring 120. The sealing portion 134 is connected to the support portion 132, and the sealing portion 134 is disposed outside the support portion 132. The support portion 132 is used to position and support the sealing portion 134, so that the sealing portion 134 can be held in a predetermined position to ensure the reliability of dynamic sealing. Among them, the support portion 132 is spaced apart from the rotating shaft 210, and the sealing portion 134 is between the support portion 132 and the rotating shaft 210, that is, the sealing portion 134 is in direct contact with the circumferential side surface of the rotating shaft 210.

[0087] On this basis, the support portion 132 is a rigid structure. Specifically, the support portion 132 can be processed from cold-rolled steel plates. Selecting a rigid material to prepare the support portion 132 can improve the structural strength of the sealing member 130 and reduce the possibility of the sealing member 130 being bent or even broken.

[0088] Correspondingly, the sealing portion 134 is a flexible structure. Specifically, rubber can be coated on the support portion 132 to form the sealing portion 134 made of rubber. Selecting a flexible material to prepare the support portion 132 can, on the one hand, reduce the resistance of the sealing member 130 to the rotating shaft 210 by virtue of the deformation characteristics of the flexible structure, and on the other hand, reduce the damage of the support portion 132 to the rotating shaft 210.

[0089] Such as Figure 4 、 Figure 5 and Figure 6 As shown in

[0090] Figure 5 FIG. shows a schematic structural diagram of a bearing 100 according to an embodiment of the present invention.

[0091] Figure 6 FIG. shows a schematic structural diagram of a bearing 100 according to an embodiment of the present invention.

[0092] In this embodiment, the support portion 132 is annular, the outer diameter of the support portion 132 is adapted to the size of the groove 1204 on the inner side of the outer ring 120, and the inner diameter of the support portion 132 is greater than or equal to the inner diameter of the shaft hole 1104 to avoid the support portion 132 affecting the rotation of the rotating shaft 210.

[0093] On this basis, without installing the rotating shaft 210, the inner diameter of the sealing portion 134 is smaller than the inner diameter of the shaft hole 1104 to ensure that the sealing portion 134 is in close contact with the circumferential side surface of the rotating shaft 210, achieving effective and reliable dynamic sealing. Among them, during the process of inserting the rotating shaft 210 into the bearing 100, the flexible sealing portion 134 changes the inner diameter dimension through deformation to adapt to the rotating shaft 210 in the shaft hole 1104.

[0094] As Figure 6 shown, in some embodiments of the present invention, optionally, in the axial direction of the bearing 100, the sealing portion 134 is located between the supporting portion 132 and the inner ring 110.

[0095] In this embodiment, in the axial direction of the bearing 100, the sealing portion 134 is between the supporting portion 132 and the second end face 1102, that is, the sealing portion 134 in the notch is blocked by the supporting portion 132.

[0096] During the process of installing the rotating shaft 210, the outer supporting portion 132 can limit the deformation amplitude of the sealing portion 134, avoiding dislocation or even detachment of the sealing portion 134, thereby improving the positioning effect and supporting effect of the supporting portion 132 on the sealing portion 134.

[0097] After the assembly is completed, the supporting portion 132 can play a protective role outside the sealing portion 134, avoiding damage to the sealing portion 134 due to collision. At the same time, the supporting portion 132 can block dust from entering the notch, ensuring the effectiveness of dynamic sealing.

[0098] As Figure 5 shown, in some embodiments of the present invention, optionally, in the radial direction of the bearing 100, the supporting portion 132 is located between the outer ring 120 and the sealing portion 134.

[0099] In this embodiment, both the supporting portion 132 and the sealing portion 134 are annular, and the supporting portion 132 and the sealing portion 134 are nested. After the assembly is completed, the sealing portion 134 is between the supporting portion 132 and the rotating shaft 210, that is, the supporting portion 132 is connected to the outer ring 120, and the sealing portion 134 is in contact with the rotating shaft 210.

[0100] By providing the supporting portion 132 in contact with the outer ring 120, the positioning stability of the sealing component 130 can be improved, avoiding the influence of the deformation of the flexible structure on the positioning effect. By providing the sealing portion 134 between the supporting portion 132 and the rotating shaft 210, the supporting portion 132 can be prevented from contacting the rotating shaft 210, preventing the rigid supporting portion 132 from scratching the rotating shaft 210.

[0101] As Figure 1 and Figure 2As shown in the figure, an embodiment of the present invention provides a motor 200, which includes: a bearing 100 as described in any of the above embodiments; a rotating shaft 210 passing through the inner ring 110, and the sealing member 130 abuts against the circumferential side surface of the rotating shaft 210.

[0102] In this embodiment, the bearing 100 includes an inner ring 110, an outer ring 120 and rolling elements. An axial hole 1104 is formed inside the inner ring 110, and the rotating shaft 210 is inserted into the axial hole 1104. The inner ring 110 can provide positioning and support for the rotating shaft 210. Specifically, the rotating shaft 210 and the axial hole 1104 are in clearance fit, interference fit or transition fit. The outer ring 120 is arranged on the circumferential side of the inner ring 110, and there is a gap between the outer ring 120 and the inner ring 110. The rolling elements are assembled in the gap to enable the inner ring 110 and the outer ring 120 to be in rolling connection. During the working process, the rotating shaft 210 drives the inner ring 110 to rotate relative to the outer ring 120. During the relative rotation of the inner ring 110 and the outer ring 120, the rolling elements reduce the resistance between the inner ring 110 and the outer ring 120 by rolling, so as to reduce the rotation resistance of the rotating shaft 210.

[0103] On this basis, the bearing 100 further includes a sealing member 130, which is integrated on the outer ring 120 or the inner ring 110. That is, after the production and assembly of the bearing 100 are completed, the sealing member 130 is integral with the inner ring 110 or the outer ring 120, and the inner diameter of the sealing member 130 is adapted to the aperture of the axial hole 1104. During the process of inserting the rotating shaft 210 into the inner ring 110, the sealing member 130 is synchronously sleeved on the outside of the rotating shaft 210, and the sealing member 130 is in contact with the circumferential side surface of the rotating shaft 210 to meet the dynamic sealing requirements of the rotating shaft 210.

[0104] It can be seen that by integrating the sealing member 130 on the inner ring 110 or the outer ring 120, the present application can realize the modular design of the sealing member 130 on the bearing 100, eliminating the process of separately selecting and installing the oil seal structure outside the rotating shaft 210. Thus, on the one hand, the assembly process and assembly difficulty of the bearing 100 are simplified, and on the other hand, the situation of misinstallation or missing installation of the oil seal can be avoided. Thereby solving the technical defects existing in the related art. Furthermore, the technical effects of optimizing the structure of the bearing 100 and improving the practicability and reliability of the bearing 100 are achieved.

[0105] At the same time, compared with the dynamic sealing solution of independently arranging an oil seal outside the bearing 100, the integrated design of the sealing member 130 can improve the structural compactness of the relevant components, thereby reducing the occupied space, and further providing convenient conditions for the miniaturization design of the motor 200.

[0106] On this basis, the motor 200 further includes a rotating shaft 210. The rotating shaft 210 is inserted into the shaft hole 1104. The sealing member 130 is sleeved on the circumferential side surface of the rotating shaft 210, and the sealing member 130 is kept in contact with the circumferential side surface of the rotating shaft 210 to meet the dynamic sealing requirements of the rotating shaft 210 through the sealing member 130.

[0107] It should be clear that in the claims, the specification and the drawings of the present invention, the term "a plurality" means two or more, unless otherwise explicitly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for more conveniently describing the present invention and making the description process simpler, rather than indicating or implying that the device or element referred to must have the specific orientation, be constructed and operated in the specific orientation. Therefore, these descriptions should not be construed as limitations on the present invention; terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the above data.

[0108] In the claims, the specification and the drawings of the present invention, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, the specification and the drawings of the present invention, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0109] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. 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. A bearing, characterized in that, Comprising: An inner ring, including a shaft hole for installing a rotating shaft therein; An outer ring, located on the circumferential side of the inner ring, and the outer ring is in rolling connection with the inner ring; A sealing member, provided on the inner ring or the outer ring, the sealing member is configured to be sleeved on the rotating shaft, and the sealing member is used to seal the circumferential side of the rotating shaft.

2. The bearing according to claim 1, wherein The sealing member is connected to the outer ring; The sealing member is spaced apart from the inner ring.

3. The bearing according to claim 2, wherein The outer ring includes a first end face, and the inner ring includes a second end face. In the axial direction of the bearing, the first end face and the second end face are arranged in a staggered manner; At least a part of the sealing member is located between the first end face and the second end face.

4. The bearing according to claim 3, wherein The inner circumferential surface of the outer ring includes a groove; The sealing member is snap-fitted into the groove.

5. The bearing according to claim 2, wherein In the axial direction of the bearing, the distance between the sealing member and the inner ring is a first interval, and the inner diameter of the inner ring is R; The range of the first interval is: greater than or equal to 0.01R and less than or equal to 0.5R.

6. The bearing according to any one of claims 1 to 5, characterized in that, The sealing member includes: A support portion, connected to the inner ring or the outer ring, and the support portion is a rigid structure; A sealing portion, provided on the support portion, the sealing portion is configured to be sleeved on the circumferential side of the rotating shaft, and the sealing portion is a flexible structure.

7. The bearing according to claim 6, wherein The inner diameter of the support portion is greater than or equal to the diameter of the shaft hole; The inner diameter of the sealing portion is less than the diameter of the shaft hole.

8. The bearing according to claim 6, wherein In the axial direction of the bearing, the sealing portion is located between the support portion and the inner ring.

9. The bearing according to claim 6, wherein In the radial direction of the bearing, the support portion is located between the outer ring and the sealing portion.

10. A motor, characterized in that, Comprising: The bearing according to any one of claims 1 to 9; A rotating shaft, passing through the inner ring, and the sealing member abuts against the circumferential side of the rotating shaft.

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