CN205036745U - Three balls of flat spindle nose round pin universal joint - Google Patents
Three balls of flat spindle nose round pin universal joint Download PDFInfo
- Publication number
- CN205036745U CN205036745U CN201520685958.9U CN201520685958U CN205036745U CN 205036745 U CN205036745 U CN 205036745U CN 201520685958 U CN201520685958 U CN 201520685958U CN 205036745 U CN205036745 U CN 205036745U
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- China
- Prior art keywords
- oval
- round pin
- spindle nose
- bearing pin
- universal joint
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Abstract
The utility model discloses a three balls of flat spindle nose round pin universal joint, including three round pin framves, it separates 120 degrees three round pin spool to install in three round pin framves and mutual, sell the epaxial ball that has cup jointed, inner circle that the ball was included and the outer lane outer, be the raceway between inner circle and the outer lane, be provided with a plurality of kingpins in the raceway, the both sides of raceway are provided with the kingpin retaining ring that prevents the kingpin and drop, the round pin axle is including the round pin spindle nose, the shape of round pin spindle nose is the spheroidicity, its axial cross section is for oval or oval by many classes that slick and sly amalgamation formed to the circular arc line, oval or three round pins of type long diameter perpendicular to of oval -shaped put up the axis of central spline, the inside wall of inner circle is close to the central one end of three round pin framves and is equipped with 1 protruding muscle of ring -type. The beneficial effects of the utility model are that: can provide big pivot angle.
Description
Technical field
The utility model relates to a kind of car transmissions component, particularly relates to a kind of flat spindle nose tripod universal joint.
Background technique
Universal joint utilizes the devices such as ball-type, and moment is delivered to driven shaft from driving shaft, to realize the part of the axle Power output of different direction, is a vitals in car transmissions.The mobile terminal constant velocity universal joint of car constant velocity driving shaft has three types usually, and wherein one is tripod universal joint.Traditional tripod universal joint is made up of spider, ball, needle roller, punching press back-up ring and Steel Cable Baffle Ring.Publication number is the Chinese patent literature of CN201144973Y, disclose " a kind of moved axially three ball pin style constant speed universal joint of special construction " on November 5th, 2008, it comprises spider, be installed on spider and three bearing pins of spaced 120 degree, bearing pin is set with ball, raceway is provided with between bearing pin and ball, some needle rollers are provided with in described raceway, described needle roller arranged outside has needle roller back-up ring, by Steel Cable Baffle Ring shutoff outside described needle roller back-up ring, this Steel Cable Baffle Ring is fixedly sleeved on bearing pin, described ball endoporus one end is provided with step hole, step hole diameter is greater than punching press back-up ring external diameter 0.3mm ~ 1mm, step hole hole depth 0.2mm ~ 3mm, step surface and the needle roller back-up ring exterior edge face of step hole can form staggered chimeric contact of male and fomale(M&F) and be equipped with.The bearing pin head of this kind of tripod universal joint is spherical, in the running, if need to bear larger bearing capacity, just cannot obtain larger pivot angle, otherwise has needle roller and to come off the risk of joint failure.
Summary of the invention
The utility model technical issues that need to address are, existing tripod universal joint pivot angle is less than normal, thus provide a kind of flat spindle nose tripod universal joint that can provide big swing angle.
To achieve these goals, the utility model adopts following technological scheme: a kind of flat spindle nose tripod universal joint, comprise spider, be installed on spider and three bearing pins of spaced 120 degree, bearing pin is socketed with ball, the inner ring that ball is included and outer ring outside, it is raceway between inner ring and outer ring, some needle rollers are provided with in raceway, the both sides of raceway are provided with the needle roller back-up ring preventing needle roller from coming off, bearing pin comprises bearing pin head, the shape of bearing pin head is plat spheroid, its axial cross section is oval or oval by the round and smooth class be put together of multipairs of circular arcs line, the oval long diameter of oval or class is perpendicular to the axis of spider center spline, the madial wall of inner ring is provided with 1 road ring-type convex tendon near the one end at spider center.
Bearing pin head is designed to plat spheroid by this programme, and the shape of its axial cross section is designed to ellipse or class is oval.Such design makes spider operationally, and stress surface can bear larger power, in pivot angle, obtains larger pivot angle.Meanwhile, can also ensure that needle roller and ball can not come off, thus increase the working life of universal joint.Ring-type convex tendon plays the effect preventing inner ring accidental, and through inventor's many experiments, the height value of ring-type convex tendon is good, too high in 0.03mm-0.15mm, installs difficulty, and too low then limit effect is not good.
As preferably, described bearing pin also comprises the pin journal connecting spider and bearing pin head, and its axial cross section is oval or oval by the round and smooth class be put together of multipairs of circular arcs line, and ellipse or the oval long diameter of class are perpendicular to the axis of spider center spline.Synchronous with bearing pin head, the axial cross section of pin journal is also designed to ellipse or class is oval.Such design, supporting pin spindle nose bears larger bearing capacity on the one hand, also benefits on the one hand to the reliable pivot angle increasing bearing pin head.
As preferably, the major axis of the axial cross section of described bearing pin head is d1, and minor axis is d2, and the major axis of the axial cross section of described pin journal is d3, and minor axis is d4, has 2mm > d2-d4 > 0.5mm.Through inventor's many experiments, in the span of 2mm > d2-d4 > 0.5mm, the good balance between high-bearing capacity and big swing angle can be obtained.
As preferably, the other end of the madial wall of described inner ring is also provided with 1 road ring-type convex tendon.This programme also devises ring-type convex tendon at the other end of the madial wall of inner ring, forms two ends symmetrical, makes employee when assembling work, without the need to special choice direction, but one end is equipped with convex tendon arbitrarily, all can be mounted to, towards spider center, to effectively raise efficiency of assembling.
In sum, the beneficial effects of the utility model are: can provide big swing angle.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model,
Fig. 2 is the D portion enlarged view of Fig. 1,
Fig. 3 is the structural representation of spider main body,
Fig. 4 is the A-A sectional view of Fig. 3,
Fig. 5 is the B-B sectional view of Fig. 3,
Fig. 6 is the C-C sectional view of Fig. 3.
Wherein: 1 spider, 2 needle rollers, 31 inner rings, 32 outer rings, 311 ring-type convex tendons, 4 needle roller back-up rings, 6 bearing pins, 61 bearing pin heads, 62 pin journal;
The length of the axial cross section major axis of d1 bearing pin head, the length of the axial cross section minor axis of d2 bearing pin head, the length of the axial cross section major axis of d3 pin journal, the length of the axial cross section minor axis of d4 pin journal;
E is fine grinding face, and F is black skin.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
Embodiment as shown in Figure 1, a kind of flat spindle nose tripod universal joint, comprises the spider 1 arranged placed in the middle, three bearing pins 6 be installed on spider being spaced 120 degree of the center of circle with the axle of spider.On bearing pin gap be socketed with ball, inner ring that ball is included 31 and outer ring 32 outside, the gap between inner ring and outer ring is provided with raceway, is provided with some needle rollers 2 in raceway, and ball outer ring can be made to be that intermediary rotates around bearing pin with needle roller.As shown in Figure 3 and Figure 4, the bearing pin pin journal 62 that comprises bearing pin head 61 and bearing pin head and spider are linked together.As shown in Figure 5, the shape of bearing pin head is plat spheroid, and its axial cross section is oval by the round and smooth class that is put together of multipairs of circular arcs line, and the long diameter of class ellipse is perpendicular to the axis of spider center spline.As shown in Figure 6, the axial cross section of pin journal is oval, and oval long diameter is perpendicular to the axis of spider center spline.As shown in Figure 2, the madial wall of inner ring is respectively provided with 1 road ring-type convex tendon 311 near the position at two ends.
The major axis of the axial cross section of bearing pin head is d1, and minor axis is d2, and the major axis of the axial cross section of pin journal is d3, and minor axis is d4, has 2mm > d2-d4 > 0.5mm.In this example, the value of d2-d4 is 1mm.The height of projection of ring-type convex tendon is 0.03mm-0.15mm, and the value of this example is 0.1mm.
The flat spindle nose tripod universal joint of one of this example, E arc surface and symmetry plane thereof are refining surfaces, and as the surface of contact of rotary torsion, F arc surface and symmetry plane thereof are cold forging black skin, as auxiliary contoured surface, without the need to machining.The flat spindle nose tripod universal joint of one of this example, has that bearing capacity is high, pivot angle is large, assemble advantage efficiently.
Claims (4)
1. a flat spindle nose tripod universal joint, comprise spider (1), be installed on spider and three bearing pins (6) of spaced 120 degree, bearing pin is socketed with ball, the inner ring (31) that ball is included and outer ring (32) outside, it is raceway between inner ring and outer ring, some needle rollers (2) are provided with in raceway, the both sides of raceway are provided with the needle roller back-up ring (4) preventing needle roller from coming off, it is characterized in that, bearing pin comprises bearing pin head (61), the shape of bearing pin head is plat spheroid, its axial cross section is oval or oval by the round and smooth class be put together of multipairs of circular arcs line, the oval long diameter of oval or class is perpendicular to the axis of spider center spline, the madial wall of inner ring is provided with 1 road ring-type convex tendon (311) near the one end at spider center.
2. the flat spindle nose tripod universal joint of one according to claim 1, it is characterized in that, described bearing pin also comprises the pin journal (62) connecting spider and bearing pin head, its axial cross section is oval or oval by the round and smooth class be put together of multipairs of circular arcs line, and oval or long diameter that class is oval is perpendicular to the axis of spider center spline.
3. the flat spindle nose tripod universal joint of one according to claim 2, it is characterized in that, the major axis of the axial cross section of described bearing pin head is d1, minor axis is d2, the major axis of the axial cross section of described pin journal is d3, minor axis is d4, has 2mm > d2-d4 > 0.5mm.
4. the flat spindle nose tripod universal joint of one according to claim 1 and 2, is characterized in that, the other end of the madial wall of described inner ring is also provided with 1 road ring-type convex tendon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685958.9U CN205036745U (en) | 2015-09-07 | 2015-09-07 | Three balls of flat spindle nose round pin universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685958.9U CN205036745U (en) | 2015-09-07 | 2015-09-07 | Three balls of flat spindle nose round pin universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036745U true CN205036745U (en) | 2016-02-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520685958.9U Expired - Fee Related CN205036745U (en) | 2015-09-07 | 2015-09-07 | Three balls of flat spindle nose round pin universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036745U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255812A (en) * | 2020-03-17 | 2020-06-09 | 万向钱潮股份有限公司 | Ball head type tripod universal joint with composite structure |
| CN114458700A (en) * | 2022-01-19 | 2022-05-10 | 台州品佳汽配有限公司 | Movable three-ball pin and processing technology thereof |
| CN115111274A (en) * | 2022-08-29 | 2022-09-27 | 万向钱潮股份公司 | Tripod universal joint |
-
2015
- 2015-09-07 CN CN201520685958.9U patent/CN205036745U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255812A (en) * | 2020-03-17 | 2020-06-09 | 万向钱潮股份有限公司 | Ball head type tripod universal joint with composite structure |
| CN114458700A (en) * | 2022-01-19 | 2022-05-10 | 台州品佳汽配有限公司 | Movable three-ball pin and processing technology thereof |
| CN115111274A (en) * | 2022-08-29 | 2022-09-27 | 万向钱潮股份公司 | Tripod 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: 20160217 Termination date: 20210907 |