CN201661627U - Fastened sealing structure of cross universal joint - Google Patents
Fastened sealing structure of cross universal joint Download PDFInfo
- Publication number
- CN201661627U CN201661627U CN2010201520462U CN201020152046U CN201661627U CN 201661627 U CN201661627 U CN 201661627U CN 2010201520462 U CN2010201520462 U CN 2010201520462U CN 201020152046 U CN201020152046 U CN 201020152046U CN 201661627 U CN201661627 U CN 201661627U
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- ring
- dust
- outer ring
- seal ring
- hooke
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Abstract
The utility model discloses a fastened sealing structure of a cross universal joint. The fastened sealing structure comprises an outer ring, a seal ring and a dustproof cover, the seal ring comprises a seal ring framework and a seal lip, one end of the seal ring framework is bent inwards to be connected with the seal lip integrally while the other end is turned outwards to form a hooking ring, an annular groove is arranged between the seal lip and the seal ring framework, a pretension groove is disposed in the annular groove, an annular pretension spring is arranged in the pretension groove, the dustproof cover is a ring with U-shaped cross section, the ring body on the inner side of the dustproof cover clings to the cross universal joint, an inwards convex fastening ring is arranged on the inner wall of the ring body on the outer side of the dustproof cover, and the inwards convex fastening ring is fastened with the hooking ring. The fastened sealing structure effectively resolves problems that sealing property of universal joints is reduced as sealing materials of the existing universal joints are short in service life due to abrasion. The fastened sealing structure is unique in conception, compact in structure, convenient in installation and low in production cost, and can increase sealing property of universal joints effectively and prolong service cycle of the universal joints.
Description
Technical field
The utility model relates to a kind of Hooke's joint, especially relates to the Hooke's joint button sealing configuration of a kind of good sealing effect, long service life.
Background technique
Its sealing configuration of the Hooke's joint of prior art is at the outer ring of Hooke's joint opening end seal ring to be set mostly, seal ring is provided with sealing lip, thereby the axle journal of sealing lip and Hooke's joint is close to and is closed the purpose that reaches cross-axle universal shaft bearings end sealing.Simultaneously in order to prevent that silt, dust etc. are invaded the universal joint inside in the automobile using process, the Hooke's joint sealing configuration of prior art also is provided with dust-proof cover, forms enclosed construction between the axle journal of Hooke's joint and outer ring.Open day is on March 5th, 2008, publication number is the universal joint that the Chinese patent of CN201031885Y discloses a kind of lock catch type dust sealing, it comprises cross axle, the dust-proof seal ring of being located at the oil nozzle of cross axle central authorities and the bearing on the cross axle spindle nose and being arranged at bearing mouth end, roller and the oil sealing that is provided with skeleton are arranged in the described bearing, the periphery of bearing is provided with the outer ring, described dust-proof seal ring is an elastomer, be embedded with the dust sealing skeleton inside and outside it, there is the ring-shaped step of a convex the close bearing mouth end of wherein said dust-proof seal ring, and the step surface of this ring-shaped step and the axle center of bearing are perpendicular; Skeleton one end described and that oil sealing matches links to each other with oil sealing, and the other end is provided with the anticreep snap ring of epirelief, and the inboard of this anticreep snap ring and the step surface of ring-shaped step match.Open day is on April 11st, 2007, publication number is that the universal joint and the open day of the disclosed a kind of dust sealing of Chinese patent file of CN2888168Y is on October 12nd, 2005, and publication number is that the disclosed a kind of universal joint with the self-locking dust-proof sealing structure of the Chinese patent file of CN2733084Y has all adopted similar structure.This structural change the sealing means of traditional universal joint, improved the sealing and dustproof performance of universal joint effectively, but because the contact segment of seal ring and universal-joint journal adopts soft materials such as rubber mostly, sealing material weares and teares easily, operating time has been grown and has caused sealability to descend, secondly, this class sealing material is aging easily, and its elastic force of aging back descends, also will cause its sealability to descend, thereby have a strong impact on the working life of universal joint.
The model utility content
The sealing material easily wearing and tearing and aging of the utility model for solving present Hooke's joint, cause the sealability of universal joint to descend, thereby had a strong impact on the problem in universal joint working life and a kind of good seal performance and long service life are provided, can effectively prolong the universal joint Hooke's joint button sealing configuration in working life.
The utility model is to reach the concrete technological scheme that above-mentioned technical purpose adopts to be: a kind of Hooke's joint button sealing configuration, comprise the outer ring, seal ring and dust-proof cover, described outer ring is the cylinder-like structure with an opening end and a closed end, the opening end inboard of outer ring is provided with seal ring, described seal ring comprises seal ring skeleton reach and Hooke's joint axle journal fit the sealing lip adaptive with the outer ring, one end invagination of seal ring skeleton is connected with the sealing lip one, the other end of seal ring skeleton turns up and forms the coupler body ring, be provided with circular groove between sealing lip and the seal ring skeleton, be provided with the pretension groove in the circular groove, be provided with the preloading spring of loop configuration in the pretension groove, described dust-proof cover is the take the shape of the letter U ring bodies of structure of cross section, the inboard ring body of dust-proof cover and Hooke's joint are fitted, the inwall of outside ring body is provided with the convex clasp, and the coupler body ring on convex clasp and the seal ring skeleton is interlockingly connected.Between sealing lip and seal ring skeleton, circular groove is set, the pretension groove is set in the circular groove, and the preloading spring of loop configuration is set in the pretension groove, like this, preloading spring just has certain pressure to the sealing lip of ring structure all the time, on the sealing lip axle journal that is fitted in Hooke's joint tightly with ring structure, no matter be that the sealing lip wearing and tearing or the elastic force that wears out descend, can guarantee the seal degree between sealing lip and the Hooke's joint axle journal, thereby improve the sealability of universal joint greatly, prolong the working life of universal joint, the preloading spring here can be selected for use to hold end to end and interconnect minor diameter spring or other structures with tightening force of structure in the form of a ring.In addition, convex clasp snapping can prevent that the dust-proof cover displacement breaks away from the outer ring, guarantees the proper functioning of dust-proof cover on coupler body ring on the seal ring and the dust-proof cover.
As preferably, dust-proof cover outside ring body is provided with dust ring near a side of outer ring, the inboard of dust ring is horn-like structure, the opening end outside of outer ring is provided with the dust sealing face of cone structure, dust ring is set on the dust sealing face, and the cone structure of the horn strucutre of dust ring inboard and dust sealing face is suitable.The cone structure of the horn strucutre of dust ring inboard and dust sealing face is suitable can guarantee both closely cooperating, and horn-like structure can increase the resilience of oil sealing, thereby guarantees the dustproof effect of dust-proof cover.
As preferably, be provided with secondary sealing lip between the interior flanging of sealing lip and seal ring skeleton, the internal diameter of secondary sealing lip is greater than sealing lip, is connected by arch structure between sealing lip and the secondary sealing lip.Between the interior flanging of sealing lip and seal ring skeleton secondary sealing lip is set, can form double seal, thereby further strengthen sealing effect, the arch structure setting between sealing lip and the secondary sealing lip can increase the flexibility of sealing lip, helps improving the sealability of sealing lip.
As preferably, the external diameter of outer ring is 30 to 100 millimeters, and wall thickness is 1.5 to 4 millimeters, and the cone-apex angle of outer ring opening end dust sealing face is 15 to 40 degree, and the universal joint of this dimensional range relatively is applicable to heavy-duty car.
As preferably, the opening end inboard of outer ring is provided with the seal ring fitting seat of band ledge structure, the internal diameter of seal ring fitting seat is bigger 0.5 to 2.5 millimeter than the internal diameter of outer ring, seal ring passes through the seal ring skeletal fixation on the seal ring fitting seat, the seal ring fitting seat of band ledge structure is set in the opening end inboard of outer ring, can make things convenient for the installation and the location of seal ring, simultaneously, because outer ring inwall machining accuracy is higher, and the required precision of seal ring fitting seat is not high, and the seal ring fitting seat that the band ledge structure is set can reduce processing cost.
As preferably, be embedded with the dust-proof cover skeleton on the dust-proof cover, the dust-proof cover skeleton is the take the shape of the letter U ring bodies of structure of cross section.In dust-proof cover, be embedded skeleton, can strengthen the structural strength of dust-proof cover, make dust-proof cover more tight with cooperating of universal-joint journal.
As preferably, the external diameter of dust-proof cover is less than the external diameter of outer ring.The external diameter that the external diameter of dust-proof cover is slightly less than the outer ring can prevent the excessive assembling that influences universal joint of dust-proof cover external diameter.
As preferably, the closed end indent of outer ring forms an inwardly protruded closed platform, is provided with the groove of ring structure between the madial wall of closed platform and outer ring, and the cross section semicircular in shape of described groove, its degree of depth are 0.3～1.5 millimeter.Ring structure groove between the madial wall of inwardly protruded closed platform and closed platform and outer ring is provided with the flatness that can guarantee outer ring its diapire when moulding.
As preferably, the outer ring is the structure by wall thickness such as steel plate are integrated, be substantially, and the inwall of outer ring is provided with two row rollers, is provided with pad between the diapire of roller and outer ring, is provided with circlip between roller and the seal ring.Can adopt the steel plate impact briquetting Deng the outer ring of wall thickness structure, thereby reduce materials consumption, reduce the fine finishing workload, simultaneously, wait the outer ring stress distribution of wall thickness structure even, can improve the structural strength of outer ring.
The beneficial effects of the utility model are: it has solved the sealing material wear-out life deficiency of present Hooke's joint effectively, causes the problem of the sealability decline of universal joint.The utility model design is unique, compact structure, and is easy for installation and cost of production is low, can effectively improve the sealability of universal joint, prolongs the universal joint life cycle.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model Hooke's joint.
Fig. 2 is a kind of partial structurtes sectional view of the utility model Hooke's joint.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Fig. 4 is the another kind of partial structurtes sectional view of the utility model Hooke's joint.
Fig. 5 is the partial enlarged drawing of Fig. 4.
Fig. 6 is a kind of structure sectional view of the utility model Hooke's joint outer ring.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings the embodiment of technical solutions of the utility model is further described.
In Fig. 1 embodiment 1 shown in Figure 2, a kind of Hooke's joint button sealing configuration, comprise outer ring 1, seal ring 2 and dust-proof cover 9, described outer ring is the cylinder-like structure with an opening end and a closed end, the outer ring external diameter be 55 millimeters, wall thickness is 2.5 millimeters, the opening end inboard of outer ring is provided with seal ring, described seal ring comprises with the seal ring skeleton 3 of outer ring interference fit and with sealing lip 5(that Hooke's joint 4 axle journals are fitted sees Fig. 3, do not draw among the universal-joint journal figure), one end invagination of seal ring skeleton is connected with the sealing lip one, the other end of seal ring skeleton turns up and forms coupler body ring 6, be provided with circular groove 7 between sealing lip and the seal ring skeleton, be provided with the pretension groove in the circular groove, be provided with the preloading spring 8 of loop configuration in the pretension groove, preloading spring is the minor diameter spring of structure in the form of a ring that is end-to-end, described dust-proof cover is the take the shape of the letter U ring bodies of structure of cross section, be embedded with dust-proof cover skeleton 16 on the dust-proof cover, the dust-proof cover skeleton is the take the shape of the letter U ring bodies of structure of cross section, and the external diameter of dust-proof cover is less than the external diameter of outer ring.The inboard ring body of dust-proof cover and Hooke's joint are fitted, and the inwall of outside ring body is provided with convex clasp 10, and the coupler body ring on convex clasp and the seal ring skeleton is interlockingly connected.Dust-proof cover outside ring body is provided with dust ring 11 near a side of outer ring, the inboard of dust ring is horn-like structure, the opening end outside of outer ring is provided with the dust sealing face 12 of cone structure, the cone-apex angle of cone structure is 25 degree, the cone structure of the horn strucutre of dust ring inboard and dust sealing face is suitable, and dust ring is set on the dust sealing face.The closed end indent of outer ring forms an inwardly protruded closed platform 17, is provided with the groove 18 of ring structure between the madial wall of closed platform and outer ring, and the cross section semicircular in shape of described groove, the degree of depth are 1 millimeter.The inwall of outer ring is provided with biserial roller 19, is provided with pad 20 between the diapire of roller and outer ring, is provided with circlip 21 between roller and the seal ring.
In embodiment shown in Figure 42, the outer ring is by the integrated cylinder-like structure with an opening end and a closed end of steel plate, the outer ring is the structure that wall thickness such as is substantially, the outer ring external diameter be 70 millimeters, wall thickness is 3.5 millimeters, the seal ring fitting seat 15(that the opening end inboard of the outer ring of outer ring opening end dust sealing face is provided with the band ledge structure sees Fig. 6), the internal diameter of seal ring fitting seat is bigger 1.5 millimeters than the internal diameter of outer ring, seal ring passes through the seal ring skeletal fixation on the seal ring fitting seat, interference fit between seal ring skeleton and the seal ring fitting seat; Be provided with secondary sealing lip 13(between the interior flanging of sealing lip and seal ring skeleton and see Fig. 5), secondary sealing lip tilts to outer ring diapire direction, and the internal diameter of secondary sealing lip is greater than sealing lip, is connected by arch structure 14 between sealing lip and the secondary sealing lip.All the other are identical with embodiment 1.
Hooke's joint button sealing configuration is when user mode, interference fit between the seal ring skeleton outer ring, sealing lip and universal-joint journal are close to and are played seal action, and it can prevent the oil leak of universal joint spindle nose, thereby guarantee the lubrication effect between universal joint spindle nose and roller, the outer ring; Preloading spring just has certain pressure to the sealing lip of ring structure all the time, on the sealing lip axle journal that is fitted in Hooke's joint tightly with ring structure, no matter be that the sealing lip wearing and tearing or the elastic force that wears out descend, can guarantee the seal degree between sealing lip and the Hooke's joint axle journal, thereby improve the sealability of universal joint greatly, prolong the working life of universal joint.Universal-joint journal is close in the dust-proof cover inboard, the outside is close to the outer ring opening end outside, thereby play dustproof, waterproof action, convex clasp snapping can prevent that the dust-proof cover displacement breaks away from the outer ring, guarantees the proper functioning of dust-proof cover on coupler body ring on the seal ring and the dust-proof cover.
Claims (9)
1. Hooke's joint button sealing configuration, comprise the outer ring, seal ring and dust-proof cover, it is characterized in that: described outer ring (1) is for having the cylinder-like structure of an opening end and a closed end, the opening end inboard of outer ring is provided with seal ring (2), described seal ring comprises seal ring skeleton (3) reach and Hooke's joint (4) axle journal fit the sealing lip (5) adaptive with the outer ring, one end invagination of seal ring skeleton is connected with the sealing lip one, the other end of seal ring skeleton turns up and forms coupler body ring (6), be provided with circular groove (7) between sealing lip and the seal ring skeleton, be provided with the pretension groove in the circular groove, be provided with the preloading spring (8) of loop configuration in the pretension groove, described dust-proof cover (9) is the take the shape of the letter U ring bodies of structure of cross section, the inboard ring body of dust-proof cover and Hooke's joint are fitted, the inwall of outside ring body is provided with convex clasp (10), and the coupler body ring on convex clasp and the seal ring skeleton is interlockingly connected.
2. Hooke's joint button sealing configuration according to claim 1, it is characterized in that described dust-proof cover outside ring body is provided with dust ring (11) near a side of outer ring, the inboard of dust ring is horn-like structure, the opening end outside of outer ring is provided with the dust sealing face (12) of cone structure, dust ring is set on the dust sealing face, and the cone structure of the horn strucutre of dust ring inboard and dust sealing face is suitable.
3. Hooke's joint button sealing configuration according to claim 1, it is characterized in that being provided with secondary sealing lip (13) between the interior flanging of described sealing lip and seal ring skeleton, the internal diameter of secondary sealing lip is greater than sealing lip, is connected by arch structure (14) between sealing lip and the secondary sealing lip.
4. Hooke's joint button sealing configuration according to claim 1, the external diameter that it is characterized in that described outer ring are 30 to 100 millimeters, and wall thickness is 1.5 to 4 millimeters, and the cone-apex angle of outer ring opening end dust sealing face is 15 to 40 degree.
5. Hooke's joint button sealing configuration according to claim 4, it is characterized in that the opening end inboard of described outer ring is provided with the seal ring fitting seat (15) of band ledge structure, the internal diameter of seal ring fitting seat is bigger 0.5 to 2.5 millimeter than the internal diameter of outer ring, and seal ring passes through the seal ring skeletal fixation on the seal ring fitting seat.
6. Hooke's joint button sealing configuration according to claim 1 is characterized in that being embedded with on the described dust-proof cover dust-proof cover skeleton (16), and the dust-proof cover skeleton is the take the shape of the letter U ring bodies of structure of cross section.
7. Hooke's joint button sealing configuration according to claim 1 is characterized in that the external diameter of the external diameter of described dust-proof cover less than the outer ring.
8. Hooke's joint button sealing configuration according to claim 1, the closed end indent that it is characterized in that described outer ring forms an inwardly protruded closed platform (17), be provided with the groove (18) of ring structure between the madial wall of closed platform and outer ring, the cross section semicircular in shape of described groove, its degree of depth are 0.3～1.5 millimeter.
9. according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 described Hooke's joint button sealing configurations, it is characterized in that the outer ring is the structure by wall thickness such as steel plate are integrated, be substantially, the inwall of outer ring is provided with two row rollers (19), be provided with pad (20) between the diapire of roller and outer ring, be provided with circlip (21) between roller and the seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201520462U CN201661627U (en) | 2010-04-08 | 2010-04-08 | Fastened sealing structure of cross universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201520462U CN201661627U (en) | 2010-04-08 | 2010-04-08 | Fastened sealing structure of cross universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201661627U true CN201661627U (en) | 2010-12-01 |
Family
ID=43232042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201520462U Expired - Lifetime CN201661627U (en) | 2010-04-08 | 2010-04-08 | Fastened sealing structure of cross universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201661627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200172A (en) * | 2010-04-08 | 2011-09-28 | 万向钱潮股份有限公司 | Buckling type seal structure of cross axle cardan joint |
-
2010
- 2010-04-08 CN CN2010201520462U patent/CN201661627U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200172A (en) * | 2010-04-08 | 2011-09-28 | 万向钱潮股份有限公司 | Buckling type seal structure of cross axle cardan joint |
| CN102200172B (en) * | 2010-04-08 | 2013-04-17 | 万向钱潮股份有限公司 | Buckling type seal structure of cross axle cardan joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101201 Effective date of abandoning: 20130417 |
|
| RGAV | Abandon patent right to avoid regrant |