CN202007839U - Universal joint with cross shaft - Google Patents
Universal joint with cross shaft Download PDFInfo
- Publication number
- CN202007839U CN202007839U CN2011200910348U CN201120091034U CN202007839U CN 202007839 U CN202007839 U CN 202007839U CN 2011200910348 U CN2011200910348 U CN 2011200910348U CN 201120091034 U CN201120091034 U CN 201120091034U CN 202007839 U CN202007839 U CN 202007839U
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- China
- Prior art keywords
- overcoat
- sealing
- groove
- section
- hooke
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- Expired - Fee Related
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Abstract
The utility model relates to a universal joint with a cross shaft. The universal joint with the cross shaft comprises the cross shaft, a bearing arranged at the end part of the cross shaft, and an oil seal for sealing the bearing and the cross shaft; the bearing comprises an outer sleeve and a roller pin arranged in the outer sleeve; the outer sleeve is a sleeve which is made of a steel plate through compression molding; one end of the sleeve is open; the other end of the sleeve is closed; the external surface of the open end of the outer sleeve is provided with an annular groove; the annular groove extends along the circumferential direction of the outer sleeve and fully extends to the whole circumferential direction of the outer sleeve; the end surface of the oil seal is provided with a sealing groove; the outer side wall surface of the sealing groove is provided with an annular elastic sealing lip; the open end of the outer sleeve is inserted into the sealing groove; the sealing lip is hermetically connected in an annular ditch; and the inner side surface of the oil seal is connected onto the cross shaft. The universal joint with the cross shaft, which is disclosed by the utility model, has a long service life, and the problem that the service life of conventional universal joints with the cross shafts is short is solved.
Description
Technical field
The utility model relates to universal joint, relates in particular to a kind of Hooke's joint.
Background technique
Hooks coupling universal coupling is widely used in being used as transmitting torque in the mechanical axis system of machineries such as metallurgy, lifting, engineering transportation, mine.Hooks coupling universal coupling has that bigger angle compensation ability, compact structure are reasonable, bearing capacity is big, transmission efficiency is high, low noise advantages.The critical component of Hooks coupling universal coupling is a Hooke's joint, Hooke's joint is connected with clevis, for reducing the wearing and tearing between Hooke's joint and the clevis, the design bearing is connected with clevis on the termination of Hooke's joint, this kind bearing is made of overcoat and the needle roller that is built in overcoat, overcoat processing needs through forging-Vehicle Processing-heat treatment-mill processing technology, manufacturing efficiency is low, in order to prevent that dust from entering between the overcoat of universal joint shaft and bearing, inner grease is excessive, influence the normal use of universal joint, between the axle sleeve of universal joint bearing and universal joint shaft, must seal, in the existing sealing means, have plenty of by two O-ring seals, have plenty of by axle sleeve internal surface and seal ring is set and a shelves konisphere is set at sleeve outer surface at universal joint bearing, many with the upper type number of components, loaded down with trivial details during assembling, sealing effect is not good.At Chinese notice of authorization number is CN201437824U, name is called in the patent documentation of " step type steel plate impact briquetting universal joint " and discloses a kind of universal joint that is provided with bearing, it comprises cross axle, be arranged on the bearing of cross axle termination and the seal ring that bearing and cross axle are sealed, bearing comprises overcoat and is built in the needle roller of overcoat, the outer surface of seal ring is provided with skeleton, and skeleton is provided with flanging.Bearing in this patent be positioned at the internal surface of overcoat with sealing part seal ring and be to seal by the skeleton on the seal ring outer surface, usually skeleton be with rigidity preferably material apparatus form, the resiliently deformable weak effect is so the sealing effect of kind seal form between seal ring and bearing is bad; The end that is stuck in overcoat by flanging realizes preventing that seal ring in the assembly process from sliding into overcoat inside, but because of skeleton is to be connected on the outer surface of seal ring, easily produce the phenomenon that skeleton tears apart from seal ring when axially loaded is big, so the universal joint in this patent is shorter working life.
Summary of the invention
The utility model provides a kind of Hooke's joint of long service life, has solved existing Hooke's joint short problem in working life.
Above technical problem solves by following technical proposal: a kind of Hooke's joint, comprise cross axle, be arranged on the bearing of cross-member ends and the oil sealing that bearing and cross axle are sealed, described bearing comprises overcoat and is built in the needle roller of overcoat, described overcoat is the cover of the end opening the other end sealing of steel plate compression molding, the outer surface of the opening end of described overcoat is provided with circular groove, described circular groove is expired the whole circumferential of overcoat along the extending circumferentially and the extension of described overcoat, the end face of described oil sealing is provided with seal groove, the outer side surface of described seal groove is provided with the cyclic spring sealing lip, the opening end of described overcoat is plugged in the described seal groove, described sealing lip is sealedly connected in the described annular ditch, and the inner side surface of described oil sealing is sealedly connected on the described cross axle.Design seal groove by end at oil sealing, the opening end of overcoat is plugged in the seal groove, match to be connected and sealed by sealing lip and circular groove between oil sealing and the overcoat and be in the same place, the internal surface of cross axle and oil sealing is tightly connected, make that pushing bearing vertically is assembled to bearing in the process of universal joint shaft, sealing between sealing between oil sealing and the overcoat and oil sealing and the cross axle is independent of each other, and oil sealing can not slide with respect to overcoat; Overcoat adopts the cover by steel plate compression molding, than existing by cover that forging-Vehicle Processing-heat treatment-the mill processing technology is produced, make that total operation of producing bearing is few, work efficiency is high, at aspect of performance, because steel plate can be made thinlyyer, in identical overcoat external diameter and needle roller, on the basis of fourth contact diameter, can improve the needle roller diameter, prolong the working life of universal joint.
As preferably, described circular groove is through stamping forming groove, prominent and the reducer that forms and isometrical section in described overcoat is provided with successively when the described circular groove of impact briquetting, described isometrical section closed end that is positioned at overcoat, described reducer is positioned at the opening end of described overcoat, and described needle roller is positioned on described isometrical section." isometrical section " when being meant the impact briquetting circular groove the part that equates of the internal diameter that is positioned at the overcoat closed end that forms naturally, " reducer " is meant the vicissitudinous part of reducing with the isometrical section adjacent opening end that is positioned at overcoat, circular groove forms by punching press, work efficiency height during batch process, conformity is better, and in the process of moulding circular groove, can form reducer and isometrical section in the lump, make the internal diameter of opening end less than the internal diameter of closed end, needle roller in the overcoat is played the axially locating effect, prevent needle roller generation axial float, outwards push oil sealing, influence sealing effect, the surface of reducer forms curved surface naturally simultaneously, when needle roller produces axial float, rubbing surface between needle roller end and the opening end internal surface is little, and the resistance that hinders the needle roller rolling is little.
As preferably, described isometrical section length is bigger 1 to 2 millimeter than the length of described needle roller.The distance of restriction needle roller axial float.
As preferably, described cross axle comprises a main body and four shaft ends, described shaft end is from beginning to be provided with successively seal section and construction section with described axle main body connecting end, the diameter of described construction section is less than the diameter of described seal section, described needle roller is between described construction section and described isometrical section, and described oil sealing sealing is socketed on the described seal section.Needle roller in the overcoat is played the axially locating effect, when preventing needle roller generation axial float, outwards push oil sealing, influence sealing effect.
As preferably, the length of described construction section equals described isometrical section length, and the end face of described construction section is connected on the end face of described overcoat.When needle roller during towards the seal section play, the end of needle roller is connected on the end and reducer of seal section simultaneously, and the needle roller stress balance is difficult for producing eccentric wear.
As preferably, an end that is connected with described axle main body of described seal section is provided with arc sealing shoulder, is provided with the arc sealing surface between the internal surface of described oil sealing and the end face, and described arc sealing surface and described arc sealing shoulder seal link together.Good sealing effect.
As preferably, the internal surface of described oil sealing is the cylndrical surface, and the end face of described oil sealing is the plane, and the diameter of described seal section is greater than the internal diameter of described oil sealing, and the end face of described oil sealing is connected on the described axle main body.Further improve the sealing effect between oil sealing and the cross axle.
As preferably, the internal surface of described overcoat is provided with oil groove, and described oil groove is positioned at the end wall of described overcoat and the intersection of sidewall, and described oil groove is along the extending circumferentially of described overcoat, described oil groove extends the whole circumferential of full described overcoat, and the width of described oil groove is less than the diameter of described needle roller.Before bearing is assembled to cross axle, in oil groove, inject lubricating grease, follow-up need not again grease-added, the design oil groove can prolong the time of selflubricating; Oil groove design is at the intersection of sidewall and diapire and make the diameter of groove width less than needle roller, can reduce the area of contact between the bottom surface of the end face of needle roller and overcoat, and when needle roller produced axial float, it was little to hinder the resistance that needle roller rolls.
As preferably, the internal surface of described overcoat end wall is provided with circular pit, and described pit is positioned at the centre of described end wall inner surface, and the diameter of described pit is less than the diameter of the end face of described cross axle.Reduce the area of contact of cross-member ends and overcoat diapire, when cross axle and overcoat are connected to a time-out, the resistance of obstruction cross axle rotation is less.
The utlity model has following advantage, easy to process, good sealing effect, long service life.
Description of drawings
Fig. 1 is a split view of the present utility model;
Fig. 2 is a schematic representation of the present utility model.
Among the figure: cross axle 1, axle main body 11, shaft end 12, seal section 13, construction section 14, sealing shoulder 15, bearing 2, overcoat 21, needle roller 22, circular groove 23, reducer 24, isometrical section 25, oil groove 26, pit 27, oil sealing 3, seal groove 31, sealing lip 32, sealing surface 33.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
A kind of Hooke's joint, comprise cross axle 1, bearing 2 and oil sealing 3, cross axle 1 comprises a main body 11 and four shaft ends 12, shaft end 12 is provided with construction section 14 and seal section 13 successively, the diameter D1 of construction section is less than the diameter of seal section 13, it between the side of construction section 14 and the end face round-corner transition, an end that is connected with the axle main body of seal section 13 is provided with arc sealing shoulder 15, the right side of oil sealing 3 is provided with seal groove 31, the outer side surface of seal groove is provided with cyclic spring sealing lip 32, the internal surface of oil sealing is the cylndrical surface, the left side of oil sealing is the plane, be provided with arc sealing surface 33 between the internal surface of oil sealing and the left side, the radius R 3 of arc sealing surface 33 is greater than the radius R 2 of arc sealing shoulder 15, the inside diameter D 3 of oil sealing is less than the diameter of seal section 13, the inside diameter D 3 of oil sealing is greater than the diameter D2 of construction section, bearing 2 comprises overcoat 21 and is built in the needle roller 22 of overcoat, needle roller 22 is along on the total inner surface that circumferentially is evenly distributed on overcoat 21 of overcoat 21, overcoat 21 is the cover of steel plate compression molding, overcoat 21 is the cover of left end opening right-hand member sealing, the outer surface of the opening end of overcoat 21 is provided with circular groove 23, circular groove 23 is expired the whole circumferential of overcoat 21 along the extending circumferentially and the extension of overcoat 21, circular groove 23 is through stamping forming ditch, when impact briquetting circular groove 23, the opening end of overcoat 21 is towards the axis projection, thereby overcoat is divided into reducer 24 and isometrical section 25, needle roller 22 is positioned on isometrical section 25, isometrical section length L 2 is bigger 1.2 millimeters than the length of needle roller 22, isometrical section length L 2 and the length L of construction section 1 equate, the internal surface of overcoat 21 is provided with oil groove 26, oil groove 26 is positioned at the end wall of overcoat and the intersection of sidewall, oil groove 26 is along the extending circumferentially of overcoat 21, oil groove 21 extends the whole circumferential of full overcoat 21, the width of oil groove 26 is less than the diameter of needle roller 22, the internal surface of overcoat end wall is provided with circular pit 27, pit 27 is positioned at the neutral position of overcoat end wall inner surface, the diameter D2 of pit is less than the diameter of the end face of cross axle, and the end face diameter of cross axle is that the diameter D1 of construction section deducts the width that chamfering is fallen.
Referring to Fig. 2, the left side of oil sealing 3 is connected on the main body 11, sealing surface 33 is sealedly connected on the sealing shoulder 15, the internal surface of oil sealing 2 is sealedly connected on the seal section 13, the end contact of construction section 14 is on the diapire of overcoat 2, needle roller 22 is positioned on the construction section 14, and the opening end of overcoat 11 is plugged in the seal groove 31, and sealing lip 32 is sealedly connected in the annular ditch 23.
Claims (10)
1. Hooke's joint, comprise cross axle, be arranged on the bearing of cross-member ends and the oil sealing that bearing and cross axle are sealed, it is characterized in that, described bearing comprises overcoat and is built in the needle roller of overcoat, described overcoat is the cover of the end opening the other end sealing of steel plate compression molding, the outer surface of the opening end of described overcoat is provided with circular groove, described circular groove is expired the whole circumferential of overcoat along the extending circumferentially and the extension of described overcoat, the end face of described oil sealing is provided with seal groove, the outer side surface of described seal groove is provided with the cyclic spring sealing lip, the opening end of described overcoat is plugged in the described seal groove, described sealing lip is sealedly connected in the described annular ditch, and the inner side surface of described oil sealing is sealedly connected on the described cross axle.
2. Hooke's joint according to claim 1, it is characterized in that, described circular groove is through stamping forming groove, prominent and the reducer that forms and isometrical section in described overcoat is provided with successively when the described circular groove of impact briquetting, described isometrical section closed end that is positioned at overcoat, described reducer is positioned at the opening end of described overcoat, and described needle roller is positioned on described isometrical section.
3. Hooke's joint according to claim 2 is characterized in that, described isometrical section length is bigger 1 to 2 millimeter than the length of described needle roller.
4. according to claim 2 or 3 described Hooke's joints, it is characterized in that, described cross axle comprises a main body and four shaft ends, described shaft end is from beginning to be provided with successively seal section and construction section with described axle main body connecting end, the diameter of described construction section is less than the diameter of described seal section, described needle roller is between described construction section and described isometrical section, and described oil sealing sealing is socketed on the described seal section.
5. Hooke's joint according to claim 4 is characterized in that the length of described construction section equals described isometrical section length, and the end face of described construction section is connected on the end face of described overcoat.
6. Hooke's joint according to claim 4, it is characterized in that, an end that is connected with described axle main body of described seal section is provided with arc sealing shoulder, be provided with the arc sealing surface between the internal surface of described oil sealing and the end face, described arc sealing surface and described arc sealing shoulder seal link together.
7. Hooke's joint according to claim 6, it is characterized in that the internal surface of described oil sealing is the cylndrical surface, the end face of described oil sealing is the plane, the diameter of described seal section is greater than the internal diameter of described oil sealing, and the end face of described oil sealing is connected on the described axle main body.
8. according to claim 1 or 2 or 3 described Hooke's joints, it is characterized in that, the internal surface of described overcoat is provided with oil groove, described oil groove is positioned at the end wall of described overcoat and the intersection of sidewall, described oil groove is along the extending circumferentially of described overcoat, described oil groove extends the whole circumferential of full described overcoat, and the width of described oil groove is less than the diameter of described needle roller.
9. Hooke's joint according to claim 8 is characterized in that the internal surface of described overcoat end wall is provided with circular pit, and described pit is positioned at the centre of described end wall inner surface, and the diameter of described pit is less than the diameter of the end face of described cross axle.
10. according to claim 1 or 2 or 3 described Hooke's joints, it is characterized in that, the internal surface of described overcoat end wall is provided with circular pit, and described pit is positioned at the centre of described end wall inner surface, and the diameter of described pit is less than the diameter of the end face of described cross axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200910348U CN202007839U (en) | 2011-03-31 | 2011-03-31 | Universal joint with cross shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200910348U CN202007839U (en) | 2011-03-31 | 2011-03-31 | Universal joint with cross shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202007839U true CN202007839U (en) | 2011-10-12 |
Family
ID=44749497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200910348U Expired - Fee Related CN202007839U (en) | 2011-03-31 | 2011-03-31 | Universal joint with cross shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202007839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600179A (en) * | 2017-10-19 | 2018-01-19 | 上汽通用五菱汽车股份有限公司 | With protecting cover steering drive axle assembly at a kind of universal joint |
-
2011
- 2011-03-31 CN CN2011200910348U patent/CN202007839U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600179A (en) * | 2017-10-19 | 2018-01-19 | 上汽通用五菱汽车股份有限公司 | With protecting cover steering drive axle assembly at a kind of universal joint |
| CN107600179B (en) * | 2017-10-19 | 2024-01-05 | 上汽通用五菱汽车股份有限公司 | Steering transmission shaft assembly with protective cover at universal joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20190331 |