CN203836006U - Low-noise low-vibration inner star wheel applied to automobile transmission shaft device - Google Patents
Low-noise low-vibration inner star wheel applied to automobile transmission shaft device Download PDFInfo
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- CN203836006U CN203836006U CN201420106620.9U CN201420106620U CN203836006U CN 203836006 U CN203836006 U CN 203836006U CN 201420106620 U CN201420106620 U CN 201420106620U CN 203836006 U CN203836006 U CN 203836006U
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- star wheel
- vibration
- transmission shaft
- plane
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Abstract
The utility model relates to a low-noise low-vibration inner star wheel applied to an automobile transmission shaft device. The low-noise low-vibration inner star wheel comprises an inner circle matched with an automobile transmission shaft. Six spherical faces are evenly distributed on the outer side of the inner circle; the upper plane of the inner circle is a locating datum plane; the lower plane of the spherical faces is a bottom plane; an inner ball passage parallel to the axis of the inner star wheel is formed between every two spherical faces; the inner ball passages are linear elliptic grooves; the bottom of each linear elliptic groove is provided with a clearance section, wherein the clearance section is a linear elliptic groove, the clearance section and the corresponding inner ball passage form a ball passage outline in a step shape, and the long axis and short axis of the ellipse of the clearance section is larger than those of the corresponding inner ball passage. The low-noise low-vibration inner star wheel has the advantages that the clearance sections on the linear elliptic grooves of the inner ball passages are formed in a forging mode, and the clearance sections can avoid steel balls and an outer race in the working process, so that the transmission angle is enlarged, and noise generated in the working process is lowered; when the steel balls operate in the outer race and the star wheel, the clearance sections play a role in large-angle transmission, and therefore vibration of the transmission shaft is reduced.
Description
Technical field
The utility model relates to a kind of star-wheel for truck drive shaft, relates in particular to the interior alley structure of this star-wheel.
Background technique
Tradition curved grooved type transmission device, adopts initiatively fork, from parts such as moving forks; Pressure assembling, dismounting inconvenience.Owing to only having two steel ball power transmissions, when when reversion, turn to dumb, gapped, noise is large; And steel ball and curved surface groove unit pressure large, easy to wear and vibration is large, affect physical life; And the whole line shape alley in later stage can be avoided subproblem, but aspect noise and vibration, also need to improve.Summary of the invention
The utility model technical issues that need to address have been to provide a kind of star-wheel for vehicle transmission shaft device with low noise, low vibration, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: the inner circle matching with truck drive shaft; Be uniformly distributed 6 spherical shape in the outside of described inner circle; The upper plane of described inner circle is a location datum plane; The lower plane of described spherical shape is a bottom plane; Between every 2 spherical shape, form an interior alley parallel with axis; Described interior alley be shaped as a lineal shape oval recess, dead band is forced in lineal shape oval recess bottom; Described force dead band be an oval straight-line groove, with interior alley stepped on alley profile, its ellipse long and short shaft is larger than interior alley.
Compared with prior art, the beneficial effects of the utility model are: the star-wheel of Telescopic constant-velocity universal joint cathetus type alley, constant-speed transmission power and can change operating angle and carry out telescopic slide, the joint arrangement that its working track parallels to the axis simultaneously; Link together with speed changer, by six steel balls between outer race and star wheel by the transmission of power of speed changer in axle, its maximum functional angle is that between 20 degree-30 degree, bearing capacity is strong, compact structure, easy accessibility; In the lineal shape oval recess of interior alley, forcing dead band is forging molding, this shape can be dodged steel ball and outer race in the time of work, strengthen driving angle, the noise producing when reduction work, while work in outer race and star wheel because of steel ball, force dead band to play wide-angle transmission, alleviated the vibration of transmission shaft.
Brief description of the drawings
Fig. 1 is the utility model stereogram.
Fig. 2 is the floor map of Fig. 1.
Fig. 3 is that the A-A of Fig. 2 is to schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
From Fig. 1, Fig. 2, Fig. 3: the utility model comprises: the inner circle 1 matching with truck drive shaft; Be uniformly distributed 6 spherical shape 2 in the outside of described inner circle 1; The upper plane of described inner circle 1 is a location datum plane 3; The lower plane of described spherical shape 2 is a bottom plane 6; Between every 2 spherical shape 2, form an interior alley 4 parallel with axis; Described interior alley 4 be shaped as a lineal shape oval recess, dead band 5 is forced in lineal shape oval recess bottom; Described force dead band 5 be an oval straight-line groove, with interior alley 4 stepped on alley profile, its ellipse long and short shaft is larger than interior alley 4.
In the utility model, its outer surface has six lineal shape oval recess parallel with axis, described lineal shape oval recess refers to that groove is the shape that an oval cross section forms with linear path, form alley in lineal shape, six steel balls are contained in respectively in the corresponding space of the interior alley of six lineal shapes, allowed and forced dead band, and be limited in same plane by ball cage.
While adopting the utility model work, power is exported by truck drive shaft, steel ball and out star wheel.Due to the angle between transmission output shaft and live axle main reducing gear input shaft with apart from changing, therefore solve with strain device, and straight line type alley is the parts of realizing varied angle transmission of power, add and on straight line type alley, do one and force dead band, this structure has guaranteed that steel ball and straight line type alley, when master and slave moving axis has under certain angular displacement and axial displacement complex working condition simultaneously, still can transmit motion and torque very steadily, flexibly, reliably and accurately.And pin moulding is once ground in the processing of alley in lineal shape, force dead band to process, in the time that rotating and have fierce impulsive load, speed change can bear compared with large contacting stress, force dead band to strengthen corner angle, sphere-contact has solved the pockmark that rolling causes, has peeled off and spot corrosion smoothly, and contact situation is still good.Lineal shape alley structure is the necessary structure in electrodeless variable-speed power transmission process, and the quality of its contact stress and service behaviour directly has influence on the functional reliability of car load.Bearing capacity is strong, low noise, and low vibration, compact structure, easy accessibility, weares and teares little, and the life-span is grown and can be used in the automobile steering transmission device of various models.
Claims (1)
1. a star-wheel for vehicle transmission shaft device with low noise, low vibration, comprising: the inner circle matching with truck drive shaft; Be uniformly distributed 6 spherical shape in the outside of described inner circle; The upper plane of described inner circle is a location datum plane; The lower plane of described spherical shape is a bottom plane; Between every 2 spherical shape, form an interior alley parallel with axis; It is characterized in that: described interior alley be shaped as a lineal shape oval recess, dead band is forced in lineal shape oval recess bottom; Described force dead band be an oval straight-line groove, with interior alley stepped on alley profile, its ellipse long and short shaft is larger than interior alley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106620.9U CN203836006U (en) | 2014-03-10 | 2014-03-10 | Low-noise low-vibration inner star wheel applied to automobile transmission shaft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106620.9U CN203836006U (en) | 2014-03-10 | 2014-03-10 | Low-noise low-vibration inner star wheel applied to automobile transmission shaft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836006U true CN203836006U (en) | 2014-09-17 |
Family
ID=51513853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420106620.9U Expired - Fee Related CN203836006U (en) | 2014-03-10 | 2014-03-10 | Low-noise low-vibration inner star wheel applied to automobile transmission shaft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979215A (en) * | 2017-03-31 | 2017-07-25 | 南京康尼精密机械有限公司 | A kind of electric percussion tool power transmission shaft preparation method |
-
2014
- 2014-03-10 CN CN201420106620.9U patent/CN203836006U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979215A (en) * | 2017-03-31 | 2017-07-25 | 南京康尼精密机械有限公司 | A kind of electric percussion tool power transmission shaft preparation method |
| CN106979215B (en) * | 2017-03-31 | 2023-10-31 | 南京康尼精密机械有限公司 | Novel electric impact tool transmission shaft preparation method |
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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: 20140917 Termination date: 20200310 |