CN201661663U - Self-adaptive loading planetary cylindrical roller traction driving device - Google Patents
Self-adaptive loading planetary cylindrical roller traction driving device Download PDFInfo
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- CN201661663U CN201661663U CN2010201690336U CN201020169033U CN201661663U CN 201661663 U CN201661663 U CN 201661663U CN 2010201690336 U CN2010201690336 U CN 2010201690336U CN 201020169033 U CN201020169033 U CN 201020169033U CN 201661663 U CN201661663 U CN 201661663U
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Abstract
The utility model relates to a self-adaptive loading planetary cylindrical roller traction driving device, which comprises a central wheel, a planetary wheel, a sun wheel, an input shaft, an output shaft and a planetary wheel carrier, wherein the planetary wheel is installed on the planetary wheel carrier through a shaft, the sun wheel is in contact and driving connection with the planetary wheel, the sun wheel is coaxially connected with the planetary wheel carrier, the output shaft and the planetary wheel carrier are of an integral structure and the planetary wheel is formed by cylindrical rollers; and the sun wheel is a hollow elastic ring and is coaxially connected with the input shaft through arc-wedge curved profiles. The utility model has the advantages that the probability of sliding because of the rotation of the rollers is avoided, the transmission efficiency is improved, the self-adaptive loading can also be realized and the rolling pairs are prevented from being in a high contact stress state for a long time; and the contact stress among the connected profiles is evenly distributed, the situation of stress concentration is reduced and the contact life of the connected surfaces is improved.
Description
Technical field
The utility model relates to the planet cylinder roller traction transmission device that a kind of self adaption loads.
Background technique
The traction transmission is a kind of kind of drive that relies on tractive force to come transferring power, and it comes transmitting torque and power by means of the shearing force of the elastic fluid lubricating film between two smooth metal rollers.The traction transmission needs enough positive pressures, and the method that produces positive pressure has constant voltage pressurization and self adaption pressurization.The constant voltage pressurization has interference fit method and static pressure expansion process, and no matter needed positive pressure is big or little, and the positive pressure that permanent pressurization produced is always constant (depending on magnitude of interference or static pressure).The result of this pressuring method on the one hand makes rolling element continue to be in the high pressure stress state, easily causes the contact fatigue of rolling element and loses efficacy; On the other hand in case overload easily produces skidding between the rolling element.Self adaption loads and can produce the needed positive pressure of traction transmission automatically, and regulates the size of positive pressure automatically according to the size of external load, thereby avoids the rolling pair in the traction gear to be in high contact stress state for a long time, is the best approach that produces positive pressure.Up to the present, the traction drive mechanism that pressurizes based on self adaption is mainly the planetary conical cone roller mechanism, and it realizes radial loaded by moving axially of conical roller or raceway.Conical roller in this planetary roller traction gear is the same with the conical roller in the tapered roller bearing, require the summit of roller cone body gather on bearing gyration center line certain a bit, otherwise be easy to generate because of roller from then cause and skid, thereby the reduction transmission efficiency increases the wearing and tearing between the rolling pair.If adopt planet cylinder roller mechanism, can only realize up till now that then constant voltage loads.
Summary of the invention
The utility model will solve existing planet conical roller traction drive mechanism transfers to produce skidding easily certainly because of roller problem, proposes the planet cylinder roller traction transmission device that a kind of self adaption that is difficult for skidding loads.
The technical solution of the utility model:
The planet cylinder roller traction transmission device that self adaption loads, comprise central gear, planet wheel, sun gear, input shaft, output shaft, planetary wheel carrier, described planet wheel is installed on the planetary wheel carrier by axle, described sun gear is connected with the planet wheel Contact Transmission, described sun gear is connected with planetary wheel carrier is coaxial, described output shaft and planetary wheel carrier are integrative-structures, it is characterized in that: described planet wheel is a cylindrical roller; Described sun gear is the hollow elasticity circle, with input shaft by coaxial connection of arc wedge curve profile.
Further, described arc wedge curve profile is the logarithmic spiral profile.
Further, described arc wedge curve profile is made up of several sections centerings, equally distributed arc wedge curve profile, is preferably three sections or four sections.
Further, the angle of wedge of described arc wedge curve profile is greater than the friction angle between sun gear and the input shaft.
Working principle: when the input shaft input torque and when moving in the direction of the clock, the relative sun gear of input shaft produces a certain amount of relatively rotating, because the wedge of arc wedge surface, sun gear distortion is expanded, thereby make between sun gear and the planet wheel, produce the required positive pressure of traction transmission between planet wheel and the central gear.Input torque is big more, and wedge is strong more, and the positive pressure of generation is big more; Input torque reduces, and wedge weakens, and positive pressure reduces, so positive pressure has adaptation function, can regulate automatically according to load variations.In order to realize the automatic adjusting of positive pressure, require the arc wedge can not self-locking, promptly the angle of wedge is greater than friction angle.
The beneficial effects of the utility model are owing to adopted cylindrical roller, thereby avoided because of roller from then produce slide may, improved transmission efficiency, and can also realize that self adaption loads, and avoids rolling pair to be in high contact stress state for a long time; Owing to adopt the profile of logarithmic spiral to connect, the contact stress between the coupled profile is evenly distributed, reduced the stress concentration phenomenon, improved the contact life-span of contact surface.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is to view along A-A among Fig. 1.
Embodiment
With reference to Fig. 1-2, the planet cylinder roller traction transmission device that self adaption loads, comprise central gear 1, planet wheel 2, sun gear 3, input shaft 4, output shaft 5, planetary wheel carrier 6, described planet wheel 2 is installed on the planetary wheel carrier 6 by axle, described sun gear 3 is connected with planet wheel 2 Contact Transmission, described sun gear 3 and 6 coaxial connections of planetary wheel carrier, described output shaft 5 is integrative-structures with planetary wheel carrier 6, described planet wheel 2 is cylindrical rollers; Described sun gear 3 is hollow elasticity circles, with input shaft 4 by 7 coaxial connections of arc wedge curve profile.
Described arc wedge curve profile 7 is logarithmic spiral profiles.
Described arc wedge curve profile 7 is made up of three sections centerings, equally distributed arc wedge curve profile.
The angle of wedge of described arc wedge curve profile 7 is greater than the friction angle between sun gear 3 and the input shaft 4.
Working principle: when input shaft 4 input torques and when moving in the direction of the clock, input shaft 4 relative sun gears 3 produce a certain amount of relatively rotating, because the wedge of three sections arc wedge surfaces 7, sun gear 3 distortion is expanded, thereby make between sun gear 3 and the planet wheel 2, the required positive pressure of transmission is drawn in generation between planet wheel 2 and the central gear 1.Input torque is big more, and wedge is strong more, and the positive pressure of generation is big more; Input torque reduces, and wedge weakens, and positive pressure reduces, so positive pressure has adaptation function, can regulate automatically according to load variations.In order to realize the automatic adjusting of positive pressure, require the arc wedge can not self-locking, promptly the angle of wedge is greater than friction angle.
The described content of this specification embodiment only is enumerating the way of realization of model utility design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (4)
1. the planet cylinder roller traction transmission device that loads of self adaption, comprise central gear, planet wheel, sun gear, input shaft, output shaft, planetary wheel carrier, described planet wheel is installed on the planetary wheel carrier by axle, described sun gear is connected with the planet wheel Contact Transmission, described sun gear is connected with planetary wheel carrier is coaxial, described output shaft and planetary wheel carrier are integrative-structures, it is characterized in that: described planet wheel is a cylindrical roller; Described sun gear is the hollow elasticity circle, with input shaft by coaxial connection of arc wedge curve profile.
2. the planet cylinder roller traction transmission device that self adaption according to claim 1 loads, it is characterized in that: described arc wedge curve profile is the logarithmic spiral profile.
3. the planet cylinder roller traction transmission device that self adaption according to claim 1 and 2 loads, it is characterized in that: described arc wedge curve profile is made up of several sections centerings, equally distributed arc wedge curve profile.
4. the planet cylinder roller traction transmission device that self adaption according to claim 3 loads, it is characterized in that: the angle of wedge of described arc wedge curve profile is greater than the friction angle between sun gear and the input shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201690336U CN201661663U (en) | 2010-04-23 | 2010-04-23 | Self-adaptive loading planetary cylindrical roller traction driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201690336U CN201661663U (en) | 2010-04-23 | 2010-04-23 | Self-adaptive loading planetary cylindrical roller traction driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201661663U true CN201661663U (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201690336U Expired - Fee Related CN201661663U (en) | 2010-04-23 | 2010-04-23 | Self-adaptive loading planetary cylindrical roller traction driving device |
Country Status (1)
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| CN (1) | CN201661663U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759924A (en) * | 2015-04-13 | 2015-07-08 | 大连交通大学 | Friction wheel traction transmission planetary machining knife handle |
| CN106337914A (en) * | 2015-07-06 | 2017-01-18 | 株式会社捷太格特 | Planetary roller power transmission device |
| CN107956843A (en) * | 2017-12-26 | 2018-04-24 | 吉林大学青岛汽车研究院 | A kind of planetary frictional drive reducing gear with self energizing effort structure |
| CN108435444A (en) * | 2018-03-21 | 2018-08-24 | 大连隆盛科技有限公司 | A kind of vertical solution consolidates centrifuge satellite differential and vertical solution consolidates centrifuge |
| CN111868413A (en) * | 2018-01-31 | 2020-10-30 | 终极变速器私人有限公司 | Planetary traction drive |
| CN112639332A (en) * | 2018-07-14 | 2021-04-09 | 终极变速器私人有限公司 | Self-clamping traction speed-reducing or speed-increasing driver |
-
2010
- 2010-04-23 CN CN2010201690336U patent/CN201661663U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759924A (en) * | 2015-04-13 | 2015-07-08 | 大连交通大学 | Friction wheel traction transmission planetary machining knife handle |
| CN106337914A (en) * | 2015-07-06 | 2017-01-18 | 株式会社捷太格特 | Planetary roller power transmission device |
| CN106337914B (en) * | 2015-07-06 | 2021-06-01 | 株式会社捷太格特 | Planetary roller type power transmission device |
| CN107956843A (en) * | 2017-12-26 | 2018-04-24 | 吉林大学青岛汽车研究院 | A kind of planetary frictional drive reducing gear with self energizing effort structure |
| CN111868413A (en) * | 2018-01-31 | 2020-10-30 | 终极变速器私人有限公司 | Planetary traction drive |
| CN108435444A (en) * | 2018-03-21 | 2018-08-24 | 大连隆盛科技有限公司 | A kind of vertical solution consolidates centrifuge satellite differential and vertical solution consolidates centrifuge |
| CN112639332A (en) * | 2018-07-14 | 2021-04-09 | 终极变速器私人有限公司 | Self-clamping traction speed-reducing or speed-increasing driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20130423 |