CN204239501U - A kind of three ball pin sliding type universal joints - Google Patents
A kind of three ball pin sliding type universal joints Download PDFInfo
- Publication number
- CN204239501U CN204239501U CN201420702061.8U CN201420702061U CN204239501U CN 204239501 U CN204239501 U CN 204239501U CN 201420702061 U CN201420702061 U CN 201420702061U CN 204239501 U CN204239501 U CN 204239501U
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- Prior art keywords
- ball
- ball pin
- alley
- sliding type
- type universal
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- Expired - Fee Related
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- 230000000712 assembly Effects 0.000 claims abstract description 12
- 238000000429 assembly Methods 0.000 claims abstract description 12
- 241000239290 Araneae Species 0.000 claims description 6
- 238000000641 cold extrusion Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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Abstract
A kind of three ball pin sliding type universal joints.The utility model provides a kind of three ball pin sliding type universal joints, and three balls mainly solved on existing three ball pin assemblies are that face contacts with alley, and rubbing surface is large, and resistance is large, and product wearing and tearing are large, the problem that working life is short.It is characterized in that: fitting in inwall two ends and described ball (21) the outer wall two ends of described alley (4), forms gap (5) between the inwall middle-end of described alley (4) and described ball (21) outer wall middle-end.The utility model provides a kind of three ball pin sliding type universal joints, and novel housing adopts bicircular arcs structure, alley and ball two end in contact, middle-end has gap, and ball and alley are angle contacting, thus surface friction drag is reduced, reduce wearing and tearing, extend product working life.
Description
Technical field
The utility model belongs to auto parts and components field, particularly a kind of three ball pin sliding type universal joints.
Background technique
So-called universal joint refers to and utilizes ball-type to connect the mechanical structure realizing the transmission of out-of-alignment power, is the previous mechanical part be in daily use of order.Three at present conventional ball pin sliding type universal joints have that structure is simple, lightweight, low cost and other advantages, common housing inner chamber is uniformly distributed in the lumen by three sections of arc surfaces, form three alleys, three balls on three ball pin assemblies and alley are that face contacts, rubbing surface is large, resistance is large, and product wearing and tearing are large, and working life is short.
Model utility content
In order to overcome the deficiency of background technique, the utility model provides a kind of three ball pin sliding type universal joints, and three balls mainly solved on existing three ball pin assemblies are that face contacts with alley, and rubbing surface is large, and resistance is large, and product wearing and tearing are large, the problem that working life is short.
The technological scheme that the utility model adopts is:
A kind of three ball pin sliding type universal joints, comprise three ball pin shells and three ball pin assemblies, described three ball pin shell inner wall even distributions have three alleys, described three ball pin assemblies comprise ball, described ball and described alley are slidably matched, fitting in inwall two ends and the described ball outer wall two ends of described alley, forms gap between the inwall middle-end of described alley and described ball outer wall middle-end.
Described ball comprises bearing inner race, columniform inner chamber is provided with in described bearing inner race, described interior cavity wall is provided with boss, described three ball pin assemblies also comprise spider, spider comprises end and neck, described end is placed in described inner chamber, the maximum diameter of described neck and described boss interference fit, and the circumference of described neck is arc shaped surface.
Described alley is by cold extrusion shaped.
The beneficial effects of the utility model are: the utility model provides a kind of three ball pin sliding type universal joints, its alley and ball two end in contact, and middle-end has gap, therefore, ball and alley are angle contacting, thus surface friction drag is reduced, reduce wearing and tearing, extend product working life.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model embodiment.
Fig. 2 is the left view of the utility model embodiment.
Fig. 3 is Fig. 2 A place enlarged view.
Fig. 4 is the partial sectional view of the utility model embodiment.
Fig. 5 is Fig. 4 B place enlarged view.
Fig. 6 is Fig. 5 C place enlarged view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as shown in the figure, a kind of three ball pin sliding type universal joints, comprise three ball pin shell 1 and three ball pin assemblies 2, described three ball pin shell 1 inner wall even distributions have three alleys 4, described three ball pin assemblies 2 comprise ball 21, described ball 21 is slidably matched with described alley 4, and fitting in inwall two ends and the described ball 21 outer wall two ends of described alley 4, forms gap 5 between the inwall middle-end of described alley 4 and described ball 21 outer wall middle-end.The utility model provides a kind of three ball pin sliding type universal joints, its alley and ball two end in contact, and middle-end has gap, and therefore, ball and alley are angle contacting, thus surface friction drag is reduced, and reduces wearing and tearing, extends product working life.
In the utility model, as shown in the figure, described ball 21 comprises bearing inner race 22, be provided with columniform inner chamber 23 in described bearing inner race 22, described inner chamber 23 inwall is provided with boss 25, and described three ball pin assemblies 2 also comprise spider 26, spider 26 comprises end 27 and neck 28, described end 27 is placed in described inner chamber 23, the maximum diameter of described neck 28 and described boss 25 interference fit, and the circumference of described neck 28 is arc shaped surface.On inner ring, small boss and the maximum cylindrical of axle journal are interference fit, bearing inner race can freely be shaken the head swing (ball self pivot angle reaches 30 degree), can be free to slide again, ball assembly integral can not be come off from axle journal, thus realize the big swing angle of universal joint.
In the utility model, as shown in the figure, described alley 4 is by cold extrusion shaped.Alley does not need machining through cold hobbing, needs machining processes all to adopt accurate digital control special purpose machine tool, substantially increases automaticity.
Embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection domain of the present utility model.
Claims (3)
1. a ball pin sliding type universal joint, comprise three ball pin shells (1) and three ball pin assemblies (2), described three ball pin shell (1) inner wall even distributions have three alleys (4), described three ball pin assemblies (2) comprise ball (21), described ball (21) and described alley (4) are slidably matched, it is characterized in that: fitting in inwall two ends and described ball (21) the outer wall two ends of described alley (4), forms gap (5) between the inwall middle-end of described alley (4) and described ball (21) outer wall middle-end.
2. a kind of three ball pin sliding type universal joints according to claim 1, it is characterized in that: described ball (21) comprises bearing inner race (22), columniform inner chamber (23) is provided with in described bearing inner race (22), described inner chamber (23) inwall is provided with boss (25), described three ball pin assemblies (2) also comprise spider (26), spider (26) comprises end (27) and neck (28), described end (27) is placed in described inner chamber (23), the maximum diameter of described neck (28) and described boss (25) interference fit, the circumference of described neck (28) is arc shaped surface.
3. a kind of three ball pin sliding type universal joints according to claim 1 and 2, is characterized in that: described alley (4) is by cold extrusion shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702061.8U CN204239501U (en) | 2014-11-21 | 2014-11-21 | A kind of three ball pin sliding type universal joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702061.8U CN204239501U (en) | 2014-11-21 | 2014-11-21 | A kind of three ball pin sliding type universal joints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239501U true CN204239501U (en) | 2015-04-01 |
Family
ID=52769001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420702061.8U Expired - Fee Related CN204239501U (en) | 2014-11-21 | 2014-11-21 | A kind of three ball pin sliding type universal joints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239501U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545976A (en) * | 2016-01-29 | 2016-05-04 | 万向钱潮股份有限公司 | Novel tripod movable joint |
| CN106594098A (en) * | 2017-01-24 | 2017-04-26 | 杭州通绿机械有限公司 | Optimized design method for miniaturization three-ball pin type moving joint |
-
2014
- 2014-11-21 CN CN201420702061.8U patent/CN204239501U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545976A (en) * | 2016-01-29 | 2016-05-04 | 万向钱潮股份有限公司 | Novel tripod movable joint |
| CN106594098A (en) * | 2017-01-24 | 2017-04-26 | 杭州通绿机械有限公司 | Optimized design method for miniaturization three-ball pin type moving 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: 20150401 |