CN215861403U - Universal joint of arc lip sealing bearing - Google Patents
Universal joint of arc lip sealing bearing Download PDFInfo
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- CN215861403U CN215861403U CN202121761035.9U CN202121761035U CN215861403U CN 215861403 U CN215861403 U CN 215861403U CN 202121761035 U CN202121761035 U CN 202121761035U CN 215861403 U CN215861403 U CN 215861403U
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- lip
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- arc
- sealing
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Abstract
The utility model relates to the field of universal joints, in particular to a universal joint of an arc lip sealing bearing, which comprises the universal joint of the arc lip sealing bearing, and comprises a cross shaft, a bearing and a sealing ring, wherein the sealing ring is arranged between the cross shaft and the bearing, the sealing ring comprises a first lip, a second lip and an auxiliary lip, the first lip and the second lip are arranged towards the outer side of the opening of the bearing, the auxiliary lip is arranged towards the inner side of the opening of the bearing, the auxiliary lip is arranged at the inner side, the first lip is arranged at the outer side, the second lip is arranged between the auxiliary lip and the first lip, the second lip and the auxiliary lip of the sealing ring are in interference fit with the outer circle of a shaft neck of the cross shaft to form sealing, and the contact positions of the first lip, the second lip and the auxiliary lip and the surface of the shaft neck of the cross shaft are arranged to be arc surfaces. The utility model changes the prior art that the sharp-angled lip is an arc lip, and the matching sealing effect of the arc lip and the shaft neck is better.
Description
Technical Field
The utility model relates to the field of universal joints, in particular to a universal joint of an arc lip sealing bearing.
Background
Prior art patent publication No. CN 212928572U discloses a strenghthened type cross axle universal joint assembly, including cross axle and axle sleeve assembly, the axle sleeve assembly cover is located on each axle journal of cross axle, the axle sleeve assembly includes axle sleeve, needle bearing and oil blanket, its characterized in that: the oil seal comprises an outer lip extending towards the outer side in an inclined mode and an inner lip arranged in a splayed mode; a first step surface and a second step surface are arranged on a shaft neck of the cross shaft, the first step surface is higher than the second step surface, and the outer lip and the inner lip are arranged on the first step surface; the needle bearing is mounted on the second step surface. The utility model has the beneficial effects that: through the optimization design of the structure and the material, the overall sealing performance and the mechanical strength of the universal joint cross-shaft assembly are improved, the anti-corrosion and anti-collision capacity of the universal joint cross-shaft assembly is improved, the assembly operation quality is obviously improved on the basis of not increasing the cost, the service life of a product is prolonged, and the universal joint cross-shaft assembly is suitable for high-load application.
In the above-mentioned scheme, inboard inner lip plays the basic seal effect, prevents that external pollutant from getting into and restriction fluid from flowing out, and sets up the outer lip at the bearing oral area, and the operational environment of locating is comparatively abominable, and the design of lip department is sharp limit design of closed angle, can not reach fine sealed effect, and the universal joint has the interior grease fluid of bearing to flow out in the operation unavoidably.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a universal joint of an arc lip sealing bearing.
The purpose of the utility model is achieved by the following technical scheme: the universal joint of the arc lip seal bearing comprises a universal joint of the arc lip seal bearing, and comprises a cross shaft, a bearing and a sealing ring, wherein the sealing ring is arranged between the cross shaft and the bearing, the sealing ring comprises a first lip, a second lip and an auxiliary lip, the first lip and the second lip are arranged towards the outer side of a bearing opening, the auxiliary lip is arranged towards the inner side of the bearing opening, the auxiliary lip is arranged at the inner side, the first lip is arranged at the outer side, the second lip is arranged between the auxiliary lip and the first lip, the second lip and the auxiliary lip of the sealing ring are in interference fit with the excircle of a cross shaft journal to form sealing; the contact positions of the first lip, the second lip and the auxiliary lip with the surface of the shaft neck of the universal joint pin are arc surfaces. The utility model changes the prior art that the sharp-angled lip is an arc lip, and the matching sealing effect of the arc lip and the shaft neck is better.
Preferably, the angles of the second lip and the contact part of the auxiliary lip and the journal of the universal joint pin are respectively b1, b2 and b3, and b1, b2 and b3 are set to be less than 45 degrees, so that a better sealing effect can be formed.
Preferably, the included angle between the second lip and the auxiliary lip of the bearing sealing ring is b4, and the included angle b4 is 110-. The second lip and the auxiliary lip form a herringbone structure, and when the second lip is sealed with the shaft neck, the auxiliary lip is linked with the shaft neck for sealing.
Preferably, an inner concave part is arranged on the outer side of the first lip, and the inner concave part is used for enhancing the resilience of the first lip.
The utility model has the beneficial effects that: the closed angle lip of the prior art is changed into the arc lip, so that the sealing effect of the matching of the sealing ring lip and the shaft neck is better, the sealing performance of the universal joint bearing is improved, and the problem of outflow of grease fluid in the universal joint bearing is solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
description of reference numerals: the universal joint comprises a cross shaft 1, a bearing 2, a sealing ring 3, a first lip 3-1, an inner concave part 3-11, a second lip 3-2, an auxiliary lip 3-3 and an arc surface 4.
Detailed Description
The utility model will be described in detail below with reference to the following drawings:
example (b): as shown in figures 1-2, the universal joint of the arc lip seal bearing comprises a cross shaft 1, a bearing 2 and a seal ring 3, wherein the seal ring 3 is arranged between the cross shaft 1 and the bearing 2, the seal ring 3 comprises a first lip 3-1, a second lip 3-2 and a second lip 3-3, the first lip 3-1 and the second lip 3-2 are arranged towards the outer side of the opening of the bearing 2, the second lip 3-3 is arranged towards the inner side of the opening of the bearing 2, the second lip 3-3 is arranged at the inner side, the first lip 3-1 is arranged at the outer side, the second lip 3-2 is arranged between the second lip 3-3 and the first lip 3-1, the second lip 3-2 and the second lip 3-3 of the seal ring 3 are in interference fit with the outer circle of the shaft neck of the cross shaft 1 to form a seal, and the first lip 3-1, The contact part of the second lip 3-2 and the auxiliary lip 3-3 with the shaft neck surface of the cross shaft 1 is provided with an arc surface 4. The utility model changes the prior art that the sharp-angled lip is an arc lip, and the matching sealing effect of the arc lip and the shaft neck is better.
Preferably, the angles of the contact positions of the second lip 3-2 and the auxiliary lip 3-3 with the shaft neck of the universal joint pin 1 are respectively b1, b2, b3, b1, b2 and b3 which are smaller than 45 degrees, so that better sealing effect can be formed.
Preferably, the included angle between the second lip 3-2 and the auxiliary lip 3-3 of the sealing ring 3 of the bearing 2 is b4, and the included angle b4 is 115 degrees, so that the sealing effect can be further improved. The second lip 3-2 and the auxiliary lip 3-3 form a herringbone structure, and when the second lip 3-2 is sealed with the shaft neck, the auxiliary lip 3-3 is simultaneously linked with the sealing of the shaft neck.
Preferably, the outer side of the lip I3-1 is provided with an inner concave part 3-11, and the inner concave part 3-11 is used for enhancing the resilience of the lip I3-1.
It should be understood that equivalent alterations and modifications of the technical solution and the inventive concept of the present invention by those skilled in the art should fall within the scope of the appended claims.
Claims (4)
1. The utility model provides a universal joint of circular arc lip seal bearing which characterized in that: comprises a cross shaft (1), a bearing (2) and a sealing ring (3), wherein the sealing ring (3) is arranged between the cross shaft (1) and the bearing (2), the sealing ring (3) comprises a first lip (3-1), a second lip (3-2) and an auxiliary lip (3-3), the first lip (3-1) and the second lip (3-2) are arranged towards the outer side of the opening part of the bearing (2), the auxiliary lip (3-3) is arranged towards the inner side of the opening part of the bearing (2), the auxiliary lip (3-3) is arranged at the inner side, the first lip (3-1) is arranged at the outer side, the second lip (3-2) is arranged between the auxiliary lip (3-3) and the first lip (3-1), the second lip (3-2), the auxiliary lip (3-3) and the shaft neck excircle of the sealing ring (3) are in interference fit, and sealing is formed, and the contact positions of the first lip (3-1), the second lip (3-2) and the auxiliary lip (3-3) with the surface of the shaft neck of the cross shaft (1) are set to be arc surfaces (4).
2. The gimbal of a circular arc lip seal bearing according to claim 1, wherein: the angles of the contact positions of the first lip (3-1), the second lip (3-2) and the auxiliary lip (3-3) of the sealing ring (3) of the bearing (2) and the journal of the cross shaft (1) are respectively b1, b2, b3, b1, b2 and b3 which are smaller than 45 degrees.
3. The gimbal of a circular arc lip seal bearing according to claim 1, wherein: the included angle between the second lip (3-2) and the auxiliary lip (3-3) is b4, the included angle b4 is 110-130 degrees, the second lip (3-2) and the auxiliary lip (3-3) form a herringbone structure, and when the second lip (3-2) is sealed with the shaft neck, the sealing of the auxiliary lip (3-3) and the shaft neck is linked simultaneously.
4. The gimbal of a circular arc lip seal bearing according to claim 1, wherein: an inner concave part (3-11) is arranged on the outer side of the first lip (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121761035.9U CN215861403U (en) | 2021-07-30 | 2021-07-30 | Universal joint of arc lip sealing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121761035.9U CN215861403U (en) | 2021-07-30 | 2021-07-30 | Universal joint of arc lip sealing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215861403U true CN215861403U (en) | 2022-02-18 |
Family
ID=80328824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121761035.9U Active CN215861403U (en) | 2021-07-30 | 2021-07-30 | Universal joint of arc lip sealing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215861403U (en) |
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2021
- 2021-07-30 CN CN202121761035.9U patent/CN215861403U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 311215 Wanxiang Road, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Wanxiang Qianchao Co.,Ltd. Patentee after: WANXIANG GROUP Co.,Ltd. Address before: No.1 Wanxiang Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: WANXIANG QIANCHAO Co.,Ltd. Patentee before: WANXIANG GROUP Co.,Ltd. |