CN201265633Y - Shaft coupling type ring cone planet stepless transmission - Google Patents
Shaft coupling type ring cone planet stepless transmission Download PDFInfo
- Publication number
- CN201265633Y CN201265633Y CNU2008201383133U CN200820138313U CN201265633Y CN 201265633 Y CN201265633 Y CN 201265633Y CN U2008201383133 U CNU2008201383133 U CN U2008201383133U CN 200820138313 U CN200820138313 U CN 200820138313U CN 201265633 Y CN201265633 Y CN 201265633Y
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- output shaft
- shaft
- transmission
- shaft coupling
- bearing
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Abstract
The utility model relates to a shaft coupling type ring-cone planetary stepless transmission which overcomes the defect that the inner structure of the prior ring-cone planetary stepless transmission adopts a separating type half shaft structure, and an output shaft comprises an input shaft of which the stress support is not ideal. The center part of the driving wheel end of the input shaft is provided with a supporting cavity towards one surface of the output shaft, one end of the output shaft is provided with a sun wheel, extends into the supporting cavity and is fixed on the supporting cavity by a supporting bearing, so that the two shafts are coaxially coupled to eliminate a cantilever state of the end of the output shaft, which is provided with the sun wheel, improve the supporting condition of the output shaft, ensures the relative positions and the favorable driving states of driving parts under a stress condition, reduces the influence on the driving by the load of the cantilever of the output end of the output shaft and accordingly better ensures the reliability and stable speed change of the transmission, prolongs the service life of the transmission and increases the transmission load capacity.
Description
Technical field
The utility model relates to ring awl planetary stageless speed variator, especially a kind of shaft coupling formula ring awl planetary stageless speed variator.
Background technique
Mechanical stepless transmission is important mechanical transmission component, is widely used in many machinery and the production line, and ring awl planetary stageless speed variator conduct a kind of form wherein has more application in many occasions." mechanical stepless transmission design and guide " 120-127 page or leaf that Chemical Industry Press publishes has more detailed argumentation and diagram to ring awl planetary stageless speed variator.Power is through input shaft, a driving wheel---uniform Z planetary cone wheel, speed ring---sun gear---steel ball V-shaped groove pressurization device---splined shaft and outputing power.Change the contact radius of speed ring and planetary cone wheel positive cone, changed the contact radius of driving wheel and arc wimble fraction simultaneously, and reached infinite variable speed purpose.Most class structural principle is herewith produced in the design of existing ring awl planetary stageless speed variator.Shown in Figure 1 is said structure principle roughly the same, the actual a kind of ring awl planetary stageless speed variator that uses.
Structural analysis, the input shaft of ring awl planetary stageless speed variator and output shaft but are separated from each other on same axis, are commonly referred to as semiaxis formula structure.This moment, output shaft had only the middle part that the bearing supporting is set, and output terminal is cantilever position with installation sun gear end.When output terminal is provided with gear or belt wheel transmitted load and the axle head amount of overhanging and load when big, output terminal is subjected to radial force and produces deflection, and output shaft is installed the sun gear cantilever end and and then produced deflection.This not only can reduce bearing working life, also can change the relative position of driving parts, influences drive state, even may damage the speed changer internal structure.The actual use also shown this structure in the above described manner during transmitted load, and speed changer transmits load capacity and descends, and loses efficacy easily and damages.
Summary of the invention
The utility model has solved ring awl planetary stageless speed variator internal structure employing separated type semiaxis structure in the prior art, output shaft comprises the unfavorable shortcoming of the stressed supporting of input shaft, provides a kind of two-semiaxle by connecting the shaft coupling formula ring awl planetary stageless speed variator that bearing forms whole supporting.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of shaft coupling formula ring awl planetary stageless speed variator, input shaft driving wheel end is provided with supporting cavity towards the center portion of output shaft one side, the end that output shaft is installed sun gear extends in the supporting cavity, be fixed on the supporting cavity by block bearing, make the coaxial shaft coupling of diaxon, do not relatively rotate but do not influence.
The block bearing that output shaft is installed the sun gear end is a radial bearing, bearing radial force, and specification is selected for use according to the concrete structure size.
Input shaft driving wheel end is provided with according to concrete structure and block bearing size towards the supporting cavity of output shaft one end bearing bearing.
Being provided with of axial dimension of the axle journal of output shaft assembling block bearing need guarantee that block bearing has the gap of play, avoids axial interference.
Need leave the gap between at the bottom of the axial end of output shaft installation sun gear one end and the supporting cavity chamber, avoid axial interference.
Input shaft and driving wheel are structure as a whole, and be simple in structure like this, and supporting cavity is set easily.
The beneficial effects of the utility model are: eliminated the cantilever position of output shaft installation sun gear end, improved the support conditions of output shaft; Guarantee the relative position of stressing conditions underdrive part, keep good drive state; Reduce the influence of output shaft output terminal contilever load to transmission, thereby guaranteed the reliability of speed changer well, speed change is stable to increase the service life, and improves and transmits load capacity.Simple in structure in addition feasible, there are not other complicated additional structures, drive part also there is not extra additional load, practical effect is obvious.
Description of drawings
Fig. 1 is the structural representation of the technological scheme of background technique;
Fig. 2 is a kind of structural representation of the present utility model;
Among the figure: 1, housing, 2, output shaft, 3, seal ring, 4, zanjon bearing entad, 5, separation sleeve, 6, angular contact bearing, 7, retainer, 8, the pressurization pellet shot from a slingshot, 9, welding cam, 10, sun gear, 11, speed ring, 12, planetary cone wheel, 13, planet retainer, 14, driving wheel, 15, input shaft, 16, support chamber, 17, step, 18, the gap, 19, radial bearing, 20, the speed governing shift fork, 21, spring.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of shaft coupling formula stepless speed variator (referring to accompanying drawing 2), on housing 1, be provided with the input shaft 15 and the output shaft 2 of coaxial arrangement, coaxality≤the 0.01mm of input shaft and output shaft, the end that input shaft is relative with output shaft is respectively equipped with driving wheel 14 and sun gear 10, wherein driving wheel and input shaft are structure as a whole, and sun gear and output shaft are empty cover.Input shaft, output shaft are respectively established two bearing supportings.The outside is zanjon bearing 4 entad, and the inboard is face-to-face angular contact bearing 6, is provided with separation sleeve 5 between the two bearings.Bearing outer ring is located by housing, axially adjusts by assembling.Seal by seal ring 3 between input shaft, output shaft and the housing.Output shaft by step, jump ring by zanjon bearing axially locating entad.Output shaft is provided with the automatic pressurization device of V-shaped groove steel ball, comprises the V-shaped groove on welding cam 9, retainer 7, pressurization pellet shot from a slingshot 8, spring 21 and the sun gear, and welding cam is connected with the output shaft spline.Driving wheel is provided with the supporting cavity 16 of indent towards the center portion of sun gear one side, the outer ring at the bottom of the chamber of supporting cavity is provided with the step 17 of projection.The end that output shaft is installed sun gear is provided with radial bearing 19 and is bearing in the supporting cavity as block bearing.Between at the bottom of block bearing inner ring and output shaft axle head and the supporting cavity chamber gapped 18.Supporting cavity mounting support bearing place tolerance is selected J6 for use, output shaft mounting support bearing place tolerance is selected h5 for use, axial dimension is greater than the block bearing width, leave the play gap of spring bearing, be provided with planetary cone wheel 12 between driving wheel and the sun gear, planetary cone wheel is distributed between driving wheel and the planet wheel by planet retainer 13, and the outside of planetary cone wheel is provided with speed ring 11, speed ring is by 20 controls of speed governing shift fork, and the speed governing shift fork is fixed on the housing by sliding axle.
Above-described embodiment is a kind of preferred version of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technological scheme that claim puts down in writing.
Claims (4)
1, a kind of shaft coupling formula ring awl planetary stageless speed variator is characterized in that between output shaft and the input shaft by supporting cavity and block bearing are set, and makes the coaxial shaft coupling of output shaft and input shaft.
2, shaft coupling formula ring according to claim 1 awl planetary stageless speed variator is characterized in that output shaft leaves the gap between installing at the bottom of the chamber of the end face of an end of sun gear and block bearing inner ring and supporting cavity.
3, shaft coupling formula ring awl planetary stageless speed variator according to claim 1 is characterized in that the axial dimension of the axle journal of output shaft assembling block bearing leaves block bearing play gap.
4, according to claim 1 or 2 or 3 described shaft coupling formula ring awl planetary stageless speed variators, it is characterized in that the output shaft block bearing is a radial bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201383133U CN201265633Y (en) | 2008-09-16 | 2008-09-16 | Shaft coupling type ring cone planet stepless transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201383133U CN201265633Y (en) | 2008-09-16 | 2008-09-16 | Shaft coupling type ring cone planet stepless transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201265633Y true CN201265633Y (en) | 2009-07-01 |
Family
ID=40832000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201383133U Expired - Fee Related CN201265633Y (en) | 2008-09-16 | 2008-09-16 | Shaft coupling type ring cone planet stepless transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201265633Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502692A (en) * | 2011-05-06 | 2014-01-08 | 五十铃自动车株式会社 | Planetary friction gear continuously variable transmission |
| CN105240498A (en) * | 2015-09-29 | 2016-01-13 | 江苏金源锻造股份有限公司 | Infinitely variable speed drive device |
-
2008
- 2008-09-16 CN CNU2008201383133U patent/CN201265633Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502692A (en) * | 2011-05-06 | 2014-01-08 | 五十铃自动车株式会社 | Planetary friction gear continuously variable transmission |
| CN103502692B (en) * | 2011-05-06 | 2016-03-16 | 五十铃自动车株式会社 | The wheeled stepless speed variator of planetary friction |
| CN105240498A (en) * | 2015-09-29 | 2016-01-13 | 江苏金源锻造股份有限公司 | Infinitely variable speed drive device |
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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: 20090701 Termination date: 20170916 |