Sealing ring for motor bearing bush
By setting elastic reset support structures on the inner and outer circumferences of the sealing ring, the problem of oil mist intake during high-speed rotation of the sealing ring is solved, achieving effective sealing of the motor bearing and improving safety.
Patent Information
- Application Number
- CN202422835436.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The sealing ring lacks an inner circumferential support structure when the motor shaft rotates at high speed, causing oil mist to be drawn into the motor, which poses a safety hazard.
A sealing ring is designed with first and second receiving grooves on the inner and outer circumferential sides, respectively, and first and second elastic reset members are respectively provided in the grooves. The elastic reset function of the elastic reset members supports the annular body, avoids deformation, and prevents oil mist from entering the motor.
It achieves a good seal for the motor bearings, prevents oil mist leakage, and improves reliability and safety in use.
Smart Images
Figure CN223459729U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the field of motor bearing seal, in particular, to a sealing ring for a motor bearing. BACKGROUND
[0002] The motor bearing is a mechanical part for supporting the motor rotating shaft and reducing the friction of the motor rotating shaft.
[0003] During the operation of the motor, oil mist is generated inside the bearing. In the related art, a sealing ring is usually used to seal the gap between the motor rotating shaft and the bearing. The outer circumferential side of the sealing ring is usually provided with a spring to fasten the sealing ring. However, during the high-speed rotation of the motor rotating shaft, the inner circumferential side of the sealing ring lacks sufficient supporting structure and is prone to deformation, which causes the oil mist to be sucked into the motor, resulting in safety hazards. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the present disclosure is to provide a sealing ring for a motor bearing, which can avoid the oil mist from being sucked into the motor, thereby at least partially solving the above technical problems.
[0005] In order to achieve the above purpose, the present disclosure provides a sealing ring for a motor bearing, comprising a ring-shaped body connected to the motor bearing, a first accommodating groove is arranged on the inner circumferential side of the ring-shaped body, a second accommodating groove is arranged on the outer circumferential side of the ring-shaped body, a first elastic reset member is arranged in the first accommodating groove, and a second elastic reset member is arranged in the second accommodating groove.
[0006] Optionally, the outer part of the first elastic reset member is further covered with a shell.
[0007] Optionally, the two ends of the second elastic reset member are respectively provided with a connecting part and a matching part, so that one end of the second elastic reset member can be connected with the other end.
[0008] Optionally, the connecting part is configured as a buckle, and the matching part is configured as a clasp.
[0009] Optionally, the sealing ring further comprises an anti-rotation framework, which is arranged on the outer circumferential side of the ring-shaped body, and the anti-rotation framework can cover the second accommodating groove.
[0010] Optionally, the side of the anti-rotation framework away from the second accommodating groove is further formed with a recessed part, and a third elastic reset member is arranged in the recessed part.
[0011] Optionally, a fixing part is further arranged on the anti-rotation framework, and the fixing part is used to connect with the bearing seat of the motor bearing.
[0012] Optionally, a third accommodating groove is further arranged on the annular body, and an elastic sealing strip is arranged in the third accommodating groove, the third accommodating groove is located above the annular body along a first direction, and the first accommodating groove and the second accommodating groove are located on opposite sides along a second direction perpendicular to the first direction.
[0013] Optionally, a fourth accommodating cavity is further arranged on the annular body, and a metal sheet is arranged in the fourth accommodating cavity, and the fourth accommodating cavity is arranged opposite to the third accommodating groove along the first direction.
[0014] Optionally, the third accommodating groove and the fourth accommodating cavity are respectively located on opposite sides of the first accommodating groove and the second accommodating groove along the first direction.
[0015] Through the above technical solution, the first elastic return member can support the first accommodating groove, the second elastic return member can support the second accommodating groove, and the first elastic return member and the second elastic return member jointly act to support the entire annular body, and can avoid oil mist being sucked into the motor when the inner circumferential side or the outer circumferential side of the annular body in contact with the motor shaft is deformed due to the elastic return function of the first elastic return member and the second elastic return member. Thus, the sealing ring provided by the present disclosure can realize good sealing of the motor bearing bush, avoid oil mist leakage in the bearing bush chamber, and has higher reliability and safety in use.
[0016] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0017] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following specific embodiments to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:
[0018] Figure 1 is a schematic view of the overall structure of the sealing ring provided in the exemplary embodiments of the present disclosure;
[0019] Figure 2 is a schematic view of the overall structure of the anti-rotation skeleton provided in the exemplary embodiments of the present disclosure;
[0020] Figure 3 is a schematic view of the overall structure of the sealing ring provided in the exemplary embodiments of the present disclosure;
[0021] Figure 4 is a schematic view of the overall structure of the second elastic return member provided in the exemplary embodiments of the present disclosure.
[0022] Explanation of Reference Signs
[0023] 100, annular body; 101, first accommodating groove; 102, second accommodating groove; 103, third accommodating groove; 104, fourth accommodating cavity; 110, first elastic reset member; 111, shell; 120, second elastic reset member; 121, fitting part; 122, connecting part; 130, anti-rotation framework; 131, recessed part; 132, fixing part; 140, metal sheet; 150, elastic sealing strip; 160, third elastic reset member. DETAILED DESCRIPTION
[0024] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0025] In the present disclosure, "inner and outer" refer to the inner and outer of the profile of the corresponding components, and in addition, the terms "first" and "second" used in the present disclosure are used to distinguish one element from another element, and do not have sequentiality and importance, and in addition, the following description refers to the drawings, and unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0026] According to Figures 1 to 4 As shown in the drawings, the embodiment of the present disclosure provides a sealing ring for a motor bearing bush, which comprises an annular body 100, the annular body 100 is used to be connected to the motor bearing bush to seal the gap between the motor rotating shaft and the motor bearing bush, the inner circumferential side of the annular body 100 is provided with a first accommodating groove 101, the outer circumferential side of the annular body 100 is provided with a second accommodating groove 102, the first accommodating groove 101 is provided with a first elastic reset member 110, the first elastic reset member 110 is used to support the first accommodating groove 101 to avoid the inner circumferential side of the annular body 100 from being deformed, the second accommodating groove 102 is provided with a second elastic reset member 120, the second elastic reset member 120 is used to support the second accommodating groove 102 to avoid the outer circumferential side of the annular body 100 from being deformed.
[0027] Through the above technical solution, the first elastic reset member 110 can support the first accommodating groove 101, the second elastic reset member 120 can support the second accommodating groove 102, the first elastic reset member 110 and the second elastic reset member 120 jointly act to support the entire annular body 100, and when the inner circumferential side or the outer circumferential side of the annular body 100 which is in contact with the motor rotating shaft is deformed, the annular body 100 can be restored to its original state due to the elastic reset function of the first elastic reset member 110 and the second elastic reset member 120, thereby avoiding oil mist from being sucked into the motor. More reliable and safe to use.
[0028] The inner circumferential side may be a side of the annular body 100 in contact with the motor shaft, and the outer circumferential side may be the other side opposite to the inner circumferential side.
[0029] The annular body 100 may be constructed of any suitable material. For example, the annular body 100 may be constructed of polytetrafluoroethylene, or modified polytetrafluoroethylene.
[0030] The shape of the annular body 100 may be configured as an I-shape, but the present disclosure is not limited thereto.
[0031] In some embodiments, for example, referring to Figure 3 As shown, the outside of the first elastic return member 110 can also be covered with a shell 111, which can protect the first elastic return member 110 and provide sufficient support force for the first receiving groove 101. During the rotation of the motor shaft, the annular body 100 will be affected by the high pressure generated by the rotation of the motor shaft and shrink radially, thereby causing a gap between the annular body 100 and the motor bearing. The first elastic return member 110 located in the first receiving groove 101 can prevent the annular body 100 from shrinking radially through its own elastic force. Similarly, the setting of the shell 111 can further prevent the annular body 100 from shrinking radially, so as to further improve safety and stability.
[0032] The housing 111 may be constructed of any suitable material, for example, polytetrafluoroethylene, which is not specifically limited in the present disclosure.
[0033] In some embodiments, for example, referring to Figure 4 As shown, the two ends of the second elastic return member 120 can be respectively provided with a connecting portion 122 and a fitting portion 121, so that one end of the second elastic return member 120 can be connected to the other end. In this way, the second elastic member can be adapted to the annular body 100 of different sizes within its own elastic limit, and has better adaptability.
[0034] The structures of the connecting portion 122 and the matching portion 121 can be adaptively adjusted according to actual needs. For example, the connecting portion 122 can be configured as a buckle and the matching portion 121 can be configured as a snap ring, or the connecting portion 122 can be configured as a snap ring and the matching portion 121 can be configured as a buckle. This disclosure does not specifically limit this.
[0035] The first elastic return member 110 and the second elastic return member 120 may both be constructed as springs.
[0036] In some embodiments, for example, referring to Figure 1 and Figure 2As shown, the sealing ring can further include an anti-rotation skeleton 130, which can be arranged on the outer circumferential side of the annular body 100 and can cover the second accommodating groove 102. The anti-rotation skeleton 130 can prevent the annular body 100 from being twisted and deformed, thereby forming a good fixing effect and limiting the second elastic reset member 120 in the second accommodating groove 102.
[0037] Optionally, in order to further enhance the anti-rotation effect, the anti-rotation skeleton 130 and the annular body 100 can be integrated by vulcanization or the like. The present disclosure does not make specific limitations in this regard.
[0038] In some implementable manners, the side of the anti-rotation skeleton 130 away from the second accommodating groove 102 can further be formed with a recessed portion 131, and a third elastic reset member 160 can be arranged in the recessed portion 131, which is used to fixedly connect the anti-rotation skeleton 130 to the annular body 100.
[0039] The third elastic reset member 160 can have the same structure as the second elastic reset member 120. The present disclosure does not make specific limitations in this regard.
[0040] The anti-rotation skeleton 130 can be constructed in any suitable manner, for example, the anti-rotation skeleton 130 can be made of metal or nylon, and the anti-rotation skeleton 130 can be constructed in a ring shape. The present disclosure does not make specific limitations in this regard.
[0041] In some unillustrated implementable manners, the annular skeleton can include a first skeleton and a second skeleton, which can be fixedly connected by the third elastic reset member 160 and can be locked and connected to the annular body 100 in cooperation with each other. In this way, the disassembly and assembly of the annular skeleton can be facilitated. The present disclosure does not make specific limitations in this regard.
[0042] In some implementable manners, for example, as shown in Figure 1 and Figure 2 The anti-rotation skeleton 130 can further be provided with a fixing portion 132, which is used to be connected with the bearing seat of the motor bearing, so as to avoid the anti-rotation skeleton 130 from rotating with the rotation of the motor shaft, thereby being more safe and reliable in use.
[0043] The fixing portion 132 can be constructed in any suitable manner, for example, the fixing portion 132 can be constructed as a protrusion, which can be matched with the groove of the bearing seat. The present disclosure does not make specific limitations in this regard.
[0044] For the related structures of the motor bearing and the bearing seat, those skilled in the art can refer to the existing technologies and documents, and the present disclosure will not be described here.
[0045] The number of the fixing portions 132 can be the same as the number of the grooves of the bearing seat. For example, when the number of the grooves of the bearing seat is two, the number of the fixing portions 132 can be two, and the two fixing portions 132 can be arranged at intervals on the anti-rotation framework 130. Of course, the number of the fixing portions 132 can also be three or four, as long as it matches the number of the grooves of the bearing seat. The present disclosure does not make specific limitations in this regard.
[0046] In some implementable manners, for example, referring to Figures 1 to 3 The annular body 100 can further be provided with a third accommodating groove 103, and an elastic sealing strip 150 can be arranged in the third accommodating groove 103. The elastic sealing strip 150 is used to further prevent the annular body 100 from deforming. The third accommodating groove 103 can be located above the annular body 100 along the first direction X, and the first accommodating groove 101 and the second accommodating groove 102 can be located on opposite sides along a second direction Y perpendicular to the first direction X. In the above manner, the third accommodating groove 103 is arranged between the first accommodating groove 101 and the second accommodating groove 102, and the elastic sealing strip 150 is arranged in the third accommodating groove 103, which can further prevent the annular body 100 from contracting in the radial direction.
[0047] The first direction X can be the axial direction of the annular body 100, and the second direction Y can be the radial direction of the annular body 100.
[0048] The elastic sealing strip 150 can be constructed in any suitable manner. For example, the elastic sealing strip 150 can be a silicone rubber sealing strip. The present disclosure is not limited in this regard.
[0049] In some implementable manners, for example, referring to Figure 3 The annular body 100 can further be provided with a fourth accommodating cavity 104, and a metal sheet 140 can be arranged in the fourth accommodating cavity 104. The fourth accommodating cavity 104 is arranged opposite to the third accommodating groove 103 along the first direction X. By arranging the metal sheet 140 in the fourth accommodating cavity 104, the sealing effect of the annular body 100 can be further improved.
[0050] The metal sheet 140 can be constructed as a brass sheet or other replaceable materials. The present disclosure does not make specific limitations in this regard.
[0051] Optionally, the third accommodating groove 103 and the fourth accommodating cavity 104 can be respectively located on opposite sides of the first accommodating groove 101 and the second accommodating groove 102 along the first direction X. Through this arrangement, the annular body 100 can be further prevented from contracting in the radial direction when the motor shaft is working, and the arrangement is more regular and orderly, which is convenient for operators to replace and maintain.
[0052] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
[0053] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.
[0054] In addition, various different embodiments of the present disclosure can also be combined in any appropriate manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed in the present disclosure.
Claims
1. A seal ring for a bearing of an electric machine, characterized in that The application relates to a sealing ring for a motor bearing, which comprises a ring-shaped body for being connected to a motor bearing bush, a first accommodating groove is arranged on the inner circumferential side of the ring-shaped body, a second accommodating groove is arranged on the outer circumferential side of the ring-shaped body, a first elastic reset member is arranged in the first accommodating groove, and a second elastic reset member is arranged in the second accommodating groove.
2. The seal ring for a motor bearing shell according to claim 1, wherein The outer part of the first elastic reset member is further covered by a shell.
3. The seal ring for a motor bearing shell as set forth in claim 1, wherein Two ends of the second elastic reset member are respectively provided with a connecting part and a matching part, so that one end of the second elastic reset member can be connected with the other end.
4. The seal ring for a motor bearing shell according to claim 3, wherein The connecting part is configured as a buckle, and the matching part is configured as a clasp.
5. The seal ring for a motor bearing shell as set forth in claim 1, wherein The sealing ring further comprises an anti-rotation framework, which is arranged on the outer circumferential side of the ring-shaped body and can cover the second accommodating groove.
6. The seal ring for a motor bearing shell according to claim 5, wherein The side, away from the second accommodating groove, of the anti-rotation framework is further formed with a recessed part, and a third elastic reset member is arranged in the recessed part.
7. The seal ring for a motor bearing shell according to claim 6, wherein A fixing part is further arranged on the anti-rotation framework, which is used for being connected with a bearing bush seat of the motor bearing bush.
8. The seal ring for a motor bearing shell of claim 1, wherein, A third accommodating groove is further arranged on the ring-shaped body, an elastic sealing strip is arranged in the third accommodating groove, the third accommodating groove is located above the ring-shaped body along a first direction, and the first accommodating groove and the second accommodating groove are located on opposite sides along a second direction perpendicular to the first direction.
9. The seal ring for a motor bearing shell of claim 8, wherein, A fourth accommodating cavity is further arranged on the ring-shaped body, a metal sheet is arranged in the fourth accommodating cavity, and the fourth accommodating cavity is arranged opposite to the third accommodating groove along the first direction.
10. The seal ring for a motor bearing shell of claim 9, wherein, The third accommodating groove and the fourth accommodating cavity are respectively located on opposite sides of the first accommodating groove and the second accommodating groove along the first direction.