CN214888408U - Low-resistance hysteresis bearing sealing ring - Google Patents
Low-resistance hysteresis bearing sealing ring Download PDFInfo
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- CN214888408U CN214888408U CN202121370749.7U CN202121370749U CN214888408U CN 214888408 U CN214888408 U CN 214888408U CN 202121370749 U CN202121370749 U CN 202121370749U CN 214888408 U CN214888408 U CN 214888408U
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- atress
- rubber body
- atress portion
- annular rubber
- skeleton
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Abstract
The utility model relates to the technical field of bearing seal rings, in particular to a low-resistance hysteresis bearing seal ring, which comprises a framework and an annular rubber body, wherein the inner ring wall of the annular rubber body is provided with a seal lip; the skeleton includes vertical portion and horizontal part, and the upper end of the annular rubber body upwards extends there is the atress portion, and the upper end of vertical portion upwards extends to in the atress portion, and vertical portion top end and the interval between atress portion bottom end tip be A, and the interval between the top end of atress portion and the bottom end of atress portion is B, and A < 0.5B, the utility model discloses the no skeleton of most position of its atress portion supports to when installing in the bearing inner race, provide main deflection, and the vertical portion of skeleton can effectually absorb because the transmission power that external diameter interference fit leads to, prevent because of the sealed lip deformation and the size shrink that external diameter interference fit leads to reduce the moment of torsion and the retardation of sealing washer and axle, the sub-unit position of atress portion adopts the skeleton to support, then can improve the stability of installation.
Description
Technical Field
The utility model belongs to the technical field of bearing seal circle technique and specifically relates to a low resistance hysteresis bearing seal circle.
Background
In order to provide good sealing performance, the requirements of torque and retarding force of the bearing are sacrificed, and the transmission efficiency of kinetic energy is reduced; the existing needle bearing sealing ring is arranged in a needle bearing outer ring in an interference fit mode, but the sealing ring can deform and shrink in size in the interference fit mode, and the size change of the inner diameter of the sealing ring after assembly cannot be estimated, so that the requirements on the processing precision of the outer diameter and the inner diameter of the sealing ring are high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to reduce the retarding force of a sealing bearing and eliminate the problem of large inner diameter change caused by outer diameter compression after the sealing ring is installed, the matching interference magnitude between the inner diameter of the sealing ring and a shaft can be designed more accurately to improve the transmission efficiency, and a low-resistance retarding bearing sealing ring is provided.
The utility model provides a technical scheme that its technical problem adopted is: a low-resistance hysteresis bearing seal ring comprises a framework and an annular rubber body, wherein a seal lip is arranged on the inner ring wall of the annular rubber body;
the framework comprises a vertical part and a horizontal part, the vertical part and the horizontal part are both annular, and the bottom end of the vertical part is fixedly connected with the horizontal part;
the skeleton is located annular rubber internally, the upper end of annular rubber body upwards extends there is the atress portion, the upper end of vertical portion upwards extends to in the atress portion, vertical portion top end and the interval between the bottom tip of atress portion to be A, the interval between the top tip of atress portion and the bottom tip of atress portion is B, and wherein, A < 0.5B.
Most positions of atress portion do not have the skeleton to support in this scheme to when installing in the bearing inner race, provide main deflection, but the vertical portion of skeleton can effectually absorb because the transmission power that external diameter interference fit leads to, prevent because of the seal lip deformation and the size shrink that external diameter interference fit leads to, thereby reduce the moment of torsion and the retarding force of sealing washer and axle, the skeleton support is adopted to the small part position of atress portion, then can improve the stability of installation.
Furthermore, the outer peripheral surface of the stress part is of a wave-shaped structure; the design of wavy structure has reduced the area of contact with the bearing inner race inner wall, and wavy structure can increase the magnitude of interference of atress portion and bearing inner race inner wall in the design simultaneously, so can be more effective, more convenient the installation of carrying out the sealing washer.
Specifically, the wave-shaped structure comprises a plurality of annular bulges which are distributed at equal intervals along the axial direction of the stress part.
Furthermore, the sealing lips comprise a first sealing lip and a second sealing lip, the first sealing lip and the second sealing lip are fixedly connected with the inner ring wall of the annular rubber body, the first sealing lip is positioned above the second sealing lip, the first sealing lip is inclined inwards from bottom to top, and the second sealing lip is inclined inwards from top to bottom; thereby can prevent that the inside grease of bearing from running off, can prevent again that outside dust from entering into in the bearing.
Further, the height of the top end of the first sealing lip is less than or equal to the height of the top end of the vertical part; thereby being capable of better preventing the deformation and the size shrinkage of the sealing lip caused by the interference fit of the outer diameter.
The utility model has the advantages that: the utility model discloses a no skeleton in most position of its atress portion of low resistance hysteresis bearing seal circle supports to when installing the bearing inner race, provide main deflection, and the vertical portion of skeleton can effectually absorb because the transmission power that external diameter interference fit leads to, prevent that the seal lip that leads to because of external diameter interference fit warp and the size shrink, thereby reduce the moment of torsion and the retardation of sealing washer and axle, the little partial position of atress portion adopts the skeleton to support, then can improve the stability of installation.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the low-resistance hysteresis bearing seal ring of the present invention;
fig. 2 is a three-dimensional schematic view of the low-resistance hysteresis bearing seal ring of the present invention;
in the figure: 1. a framework 101, a vertical part 102 and a horizontal part;
2. the rubber sealing device comprises an annular rubber body 201, a first sealing lip 202, a second sealing lip 203, a stress part 2031 and an annular bulge;
a: the distance between the top end of the vertical part and the bottom end of the stressed part;
b: the distance between the top end of the stress part and the bottom end of the stress part.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the invention only in a schematic way, and thus show only the components that are relevant to the invention, and the directions and references (e.g., upper, lower, left, right, etc.) may be used only to help describe the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
Example 1
As shown in fig. 1-2, a low-resistance hysteresis bearing seal ring comprises a framework 1 and an annular rubber body 2, wherein a seal lip is arranged on the inner ring wall of the annular rubber body 2;
the framework 1 comprises a vertical part 101 and a horizontal part 102, the vertical part 101 and the horizontal part 102 are both annular, and the bottom end of the vertical part 101 is fixedly connected with the horizontal part 102;
skeleton 1 is located annular rubber body 2, the upper end of annular rubber body 2 upwards extends there is atress portion 203, the upper end of vertical portion 101 upwards extends to in the atress portion 203, vertical portion 101 top end and atress portion 203 bottom end tip are A to the interval between to, the interval between the top end tip of atress portion 203 and the bottom end tip of atress portion 203 is B, and wherein, A < 0.5B.
The outer peripheral surface of the stress part 203 is of a wave-shaped structure; the design of the wave-shaped structure reduces the contact area with the inner wall of the bearing outer ring, and meanwhile, the wave-shaped structure can increase the magnitude of interference between the stress part 203 and the inner wall of the bearing outer ring in design, so that the sealing ring can be more effectively and conveniently installed.
The wave-shaped structure includes a plurality of annular protrusions 2031 distributed at equal intervals along the axial direction of the force receiving portion 203.
The sealing lips comprise a first sealing lip 201 and a second sealing lip 202, the first sealing lip 201 and the second sealing lip 202 are both fixedly connected with the inner ring wall of the annular rubber body 2, the first sealing lip 201 is positioned above the second sealing lip 202, the first sealing lip 201 inclines inwards from bottom to top, and the second sealing lip 202 inclines inwards from top to bottom; thereby can prevent that the inside grease of bearing from running off, can prevent again that outside dust from entering into in the bearing.
The height of the top end of the first sealing lip 201 is less than or equal to that of the top end of the vertical part 101; thereby better preventing the deformation and size shrinkage of the sealing lip caused by the interference fit of the outer diameter of the stress part 203.
Most of the position of its atress portion 203 of low resistance hysteresis bearing seal circle in this scheme does not have skeleton 1 to support to when installing in the bearing inner race, provide main deflection, and the vertical portion 101 of skeleton 1 can effectually absorb the transmission power that leads to because of external diameter interference fit, prevent the seal lip deformation and the size shrink that lead to because of external diameter interference fit, thereby reduce the moment of torsion and the retardation of sealing washer and axle, the skeleton 1 support is adopted to the small part position of atress portion 203, then can improve the stability of installation.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A low-drag bearing seal ring is characterized in that: the rubber sealing device comprises a framework (1) and an annular rubber body (2), wherein a sealing lip is arranged on the inner ring wall of the annular rubber body (2);
the framework (1) comprises a vertical part (101) and a horizontal part (102), the vertical part (101) and the horizontal part (102) are both annular, and the bottom end of the vertical part (101) is fixedly connected with the horizontal part (102);
skeleton (1) is located annular rubber body (2), the upper end of annular rubber body (2) upwards extends there is atress portion (203), the upper end of vertical portion (101) upwards extends to in atress portion (203), vertical portion (101) top tip and atress portion (203) bottom tip are A to interval between to, the interval between the top tip of atress portion (203) and the bottom tip of atress portion (203) is B, and wherein, A < 0.5B.
2. The low drag bearing seal ring of claim 1, wherein: the outer peripheral surface of the stress part (203) is of a wave-shaped structure.
3. The low drag bearing seal ring of claim 2, wherein: the wave-shaped structure comprises a plurality of annular bulges (2031) which are distributed at equal intervals along the axial direction of the stress part (203).
4. The low drag bearing seal ring of claim 1, wherein: the seal lip includes first seal lip (201) and second seal lip (202), first seal lip (201) and second seal lip (202) all with the inner circle wall fixed connection of the annular rubber body (2), first seal lip (201) are located the top of second seal lip (202), first seal lip (201) by supreme leanin down, second seal lip (202) from top to bottom leanin.
5. The low drag bearing seal ring of claim 4, wherein: the height of the top end of the first sealing lip (201) is less than or equal to the height of the top end of the vertical part (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121370749.7U CN214888408U (en) | 2021-06-18 | 2021-06-18 | Low-resistance hysteresis bearing sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121370749.7U CN214888408U (en) | 2021-06-18 | 2021-06-18 | Low-resistance hysteresis bearing sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214888408U true CN214888408U (en) | 2021-11-26 |
Family
ID=78904844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121370749.7U Active CN214888408U (en) | 2021-06-18 | 2021-06-18 | Low-resistance hysteresis bearing sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214888408U (en) |
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2021
- 2021-06-18 CN CN202121370749.7U patent/CN214888408U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213000 Longxiang Road, Wujin high tech Development Zone, Changzhou City, Jiangsu Province Patentee after: Jiangsu Nanfang Precision Industry Co.,Ltd. Address before: 213164 No.9, Longxiang Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee before: Jiangsu Nanfang Bearing Co.,Ltd. |