CN204284238U - The universal-joint cross trunnion assembly of trunnion journal and needle roller bus combination correction of the flank shape - Google Patents
The universal-joint cross trunnion assembly of trunnion journal and needle roller bus combination correction of the flank shape Download PDFInfo
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- CN204284238U CN204284238U CN201420694558.XU CN201420694558U CN204284238U CN 204284238 U CN204284238 U CN 204284238U CN 201420694558 U CN201420694558 U CN 201420694558U CN 204284238 U CN204284238 U CN 204284238U
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- needle roller
- trunnion
- cross
- journal
- universal
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Abstract
The utility model relates to the universal-joint cross trunnion assembly of a kind of trunnion journal and needle roller bus combination correction of the flank shape, it is characterized in that: four needle bearing assemblies are arranged on the axle journal of the four direction of cross axle body, the outside of needle bearing assembly is bearing outside collar, bearing outside collar is enclosed within cross axle body, needle roller is arranged in bearing outside collar inside, has nylon spacer between bearing outside collar inwall and cross axle body.It can solve needle roller and cross axle in hookes-type universal joint and carry when contacting, peak value contact stress is produced in cross-member ends, cause the situation that needle roller distribution of contact is extremely uneven, by effectively combining correction of the flank shape to universal-joint cross trunnion axle journal and needle roller bus, effective distribution improving needle roller and cross axle contact stress under loaded state, distribution of contact is tried one's best homogenization, improves the working life of universal-joint cross trunnion assembly.
Description
Technical field
The utility model relates to the universal-joint cross trunnion assembly of a kind of trunnion journal and needle roller bus combination correction of the flank shape, belongs to auto manufacturing.
Background technique
At present, hookes-type universal joint cross assembly generally uses straight plain line needle roller, its shape of generatrix is that two end part small arc-shaped adds middle straight line structure, and full roller is arranged, without roller cage.For straight plain line needle roller, when bearing load, produce contact rugged change when the border fillet due to needle roller two ends contacts with trunnion journal, cause contact area to occur anomaly peak contact stress, there is edge concentration stress, be i.e. " edge effect ".
Simultaneously, due to the impact that universal joint assembles by limit angle and cross axle, universal-joint fork body does not realize containing completely to cross shaft needle bearing in structural design, so just, result in the unbalance loading causing shaft strength when carrying, make the external deviation of the force action alignment bearing of bearing certain distance, the distribution of contact that unbalance loading result in needle roller and cross axle is extremely uneven, and the contact stress of heavy unbalance loading end, apparently higher than the contact stress of light unbalance loading end, produces " unbalance loading effect ".
The service life of " edge effect " and " unbalance loading effect " meeting extreme influence universal joint.In order to alleviate " edge effect " and " unbalance loading effect ", this proposes the cross assembly structure carrying out combining correction of the flank shape to needle roller bus and trunnion journal, improves the working life of universal joint assembly.
Summary of the invention
The purpose of this utility model is to provide the universal-joint cross trunnion assembly of a kind of trunnion journal and needle roller bus combination correction of the flank shape, it can solve needle roller and cross axle in hookes-type universal joint and carry when contacting, peak value contact stress is produced in cross-member ends, cause the situation that needle roller distribution of contact is extremely uneven, by effectively combining correction of the flank shape to universal-joint cross trunnion axle journal and needle roller bus, effective distribution improving needle roller and cross axle contact stress under loaded state, distribution of contact is tried one's best homogenization, improves the working life of universal-joint cross trunnion assembly.
The technical solution of the utility model is achieved in that the universal-joint cross trunnion assembly of trunnion journal and needle roller bus combination correction of the flank shape, it is characterized in that: four needle bearing assemblies are arranged on the axle journal of the four direction of cross axle body, the outside of needle bearing assembly is bearing outside collar, bearing outside collar is enclosed within cross axle body, needle roller is arranged in bearing outside collar inside, nylon spacer is had between bearing outside collar inwall and cross axle body, the joint of bearing outside collar edge and cross axle body has dish to play pad, oil sealing sealing, dust-proof cover to cover on oil sealing and is fixedly connected with bearing outside collar, the curve that small arc-shaped on needle roller and orthodrome are formed is within the scope of two tip lengths L1, length L1 is 10.4mm, orthodrome and straight line tangent, orthodrome and small arc-shaped seamlessly transit, fillet radius small in ends is 0.3mm-0.5mm, it is a that orthodrome and straight line and small arc-shaped point of contact form convexity amount in needle roller radial direction, 0.010-0.016mm.
The axle journal of described cross axle body is the structure of band tapering, trunnion journal length L=19mm scope inner taper controlled quentity controlled variable is B, its span is 1:1585 ~ 1:950, the conical surface on trunnion journal in L length range coordinates completely with needle roller bus length, trunnion journal root cylndrical surface is of a size of Φ 35.89mm, and the both ends of the surface distance of cross axle is 123mm, and needle roller diameter is Φ 5.65mm, needle roller end fillet is R0.3-0.5mm, and needle roller length is 18mm.
It is simple that the utility model has structure, easily manufactured, life of product high.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model.
Fig. 2 is needle roller place of the present utility model local structural graph.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further: as Fig. 1, shown in 2, the universal-joint cross trunnion assembly of trunnion journal and needle roller bus combination correction of the flank shape, it is characterized in that: four needle bearing assemblies 2 are arranged on the axle journal of the four direction of cross axle body 1, the outside of needle bearing assembly 2 is bearing outside collar 4, bearing outside collar 4 is enclosed within cross axle body 1, it is inner that needle roller 3 is arranged in bearing outside collar 4, nylon spacer 8 is had between bearing outside collar 4 inwall and cross axle body 1, the joint of bearing outside collar 4 edge and cross axle body 1 has dish to play pad 7, oil sealing 6 seals, dust-proof cover 5 to cover on oil sealing 6 and is fixedly connected with bearing outside collar 4, the curve that small arc-shaped 9 on needle roller 3 and orthodrome 10 are formed is within the scope of two tip lengths L1, length L1 is 10.4mm, orthodrome 10 is tangent with straight line 11, orthodrome 10 and small arc-shaped 9 seamlessly transit, fillet radius small in ends is 0.3mm-0.5mm, it is a that orthodrome 10 forms convexity amount with straight line 11 and small arc-shaped 9 point of contact in needle roller radial direction, 0.010-0.016mm.
The axle journal of described cross axle body 1 is the structure of band tapering, trunnion journal length L=19mm scope inner taper controlled quentity controlled variable is B, its span is 1:1585 ~ 1:950, the conical surface on trunnion journal in L length range coordinates completely with needle roller 3 bus length, trunnion journal root cylndrical surface is of a size of Φ 35.89mm, the both ends of the surface distance of cross axle is 123mm, needle roller diameter is Φ 5.65mm, needle roller end fillet is R0.3-0.5mm, needle roller length is 18mm, universal joint wearing and tearing stand test is carried out according to rated torque 12000Nm ﹑ rotating speed 160r/min and 7 ° of mounting arrangements angle, test result wear-out life improves more than 10 times.
Claims (2)
1. the universal-joint cross trunnion assembly of trunnion journal and needle roller bus combination correction of the flank shape, it is characterized in that: four needle bearing assemblies are arranged on the axle journal of the four direction of cross axle body, the outside of needle bearing assembly is bearing outside collar, bearing outside collar is enclosed within cross axle body, needle roller is arranged in bearing outside collar inside, nylon spacer is had between bearing outside collar inwall and cross axle body, the joint of bearing outside collar edge and cross axle body has dish to play pad, oil sealing sealing, dust-proof cover to cover on oil sealing and is fixedly connected with bearing outside collar, the curve that small arc-shaped on needle roller and orthodrome are formed is within the scope of two tip lengths L1, length L1 is 10.4mm, orthodrome and straight line tangent, orthodrome and small arc-shaped seamlessly transit, fillet radius small in ends is 0.3mm-0.5mm, it is a that orthodrome and straight line and small arc-shaped point of contact form convexity amount in needle roller radial direction, 0.010-0.016mm.
2. the universal-joint cross trunnion assembly of correction of the flank shape is combined according to the trunnion journal described in claim 1 and needle roller bus, it is characterized in that the axle journal of described cross axle body is the structure of band tapering, trunnion journal length L=19mm scope inner taper controlled quentity controlled variable is B, its span is 1:1585 ~ 1:950, the conical surface on trunnion journal in L length range coordinates completely with needle roller bus length, trunnion journal root cylndrical surface is of a size of Φ 35.89mm, the both ends of the surface distance of cross axle is 123mm, needle roller diameter is Φ 5.65mm, needle roller end fillet is R0.3-0.5mm, needle roller length is 18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694558.XU CN204284238U (en) | 2014-11-19 | 2014-11-19 | The universal-joint cross trunnion assembly of trunnion journal and needle roller bus combination correction of the flank shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694558.XU CN204284238U (en) | 2014-11-19 | 2014-11-19 | The universal-joint cross trunnion assembly of trunnion journal and needle roller bus combination correction of the flank shape |
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| Publication Number | Publication Date |
|---|---|
| CN204284238U true CN204284238U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420694558.XU Active CN204284238U (en) | 2014-11-19 | 2014-11-19 | The universal-joint cross trunnion assembly of trunnion journal and needle roller bus combination correction of the flank shape |
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| CN (1) | CN204284238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372900A (en) * | 2018-11-16 | 2019-02-22 | 万向钱潮股份有限公司 | A kind of oblique slot type heavy type universal-joint cross trunnion |
| CN110030288A (en) * | 2019-04-29 | 2019-07-19 | 万向钱潮股份有限公司 | One kind can absorbing long-life universal joint |
-
2014
- 2014-11-19 CN CN201420694558.XU patent/CN204284238U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372900A (en) * | 2018-11-16 | 2019-02-22 | 万向钱潮股份有限公司 | A kind of oblique slot type heavy type universal-joint cross trunnion |
| CN110030288A (en) * | 2019-04-29 | 2019-07-19 | 万向钱潮股份有限公司 | One kind can absorbing long-life universal joint |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |