CN101280838A - Complete mechanical automatic stepless speed-changing device - Google Patents
Complete mechanical automatic stepless speed-changing device Download PDFInfo
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- CN101280838A CN101280838A CN 200810031414 CN200810031414A CN101280838A CN 101280838 A CN101280838 A CN 101280838A CN 200810031414 CN200810031414 CN 200810031414 CN 200810031414 A CN200810031414 A CN 200810031414A CN 101280838 A CN101280838 A CN 101280838A
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- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000006978 adaptation Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
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Abstract
The invention relates to a fully mechanical variable torque and an automatic continuously variable transmission device and is particularly applicable to the vehicles with automatic transmission. The function of the device includes that the input torsion torque and the speed are adjusted for self adaptation by the input rotation speed and the external resistance torque to realize the automatic continuously variable transmission and the simple structure of the device. The invention comprises a sun gear 1, two or more planet gears 2, a framework 3, etc.; the power is inputted from the sun gear 1 and outputted from the framework 3; one end of a planet gear shaft 4 is fixedly connected with the planet gears 2 and the other end of the planet gear shaft 4 runs through the framework 3 and is connected with and drives a rotor 5; the rotor generates centrifugal force on the framework when rotating in an eccentric rail and overcomes the external resistance force to push the framework to rotate, thus realizing the variable transmission.
Description
Technical field
The present invention is about a kind of fully-machinery type bending moment and automatic stepless speed-changing device, and its output torque and speed are adjusted by input speed and external drag square self adaption, belong to mechanical transmission fields.
Background technique
Surface car of a great variety, purposes, purpose and service condition are different.For in order to transform the transmission device that the power plant performance satisfies the vehicle driving needs, require both high and many.General type is the stationary axle gear type, complicated hydraulic automatic speed change gear as planetary gear type etc.Complete planetary mechanism is to be made of sun gear, gear ring, three elements of planet wheel framework, and wherein a speed is a timing, and other speed of two can freely change according to certain rules.Control one of them speed with operating mechanism, then another speed just is certain, promptly reduces one degree of freedom with operating mechanism, just can obtain the motion of stable drive ratio really of another degrees of freedom.Therefore, planetary mechanism is a kind of differential mechanism of stable drive ratio.In order to obtain bigger velocity ratio to satisfy the requirement of travelling of vehicle, planetary driving device has adopted many groups planet row and some control mechanisms (clutch, break) and complicated Effector.Thereby cause the gear structure of vehicle and handle complexity that volume weight is big, manufacturing difficulty, cost height; And then cause the increase of vehicle dimension weight, influence the performance and the cost of car load.
The objective of the invention is to explore a kind of simple in structure, dimensional weight is little, cost is low novel fully-machinery type automatic stepless speed-changing device.
This method is to realize on epicyclic gear train.Drive mechanism only has sun gear, planetary pinion and framework, and sun gear is connected with power source, is active part; Planetary pinion, framework are passive part.As not adopting new structure and principle, the planetary pinion in this structure is in free state, transfers inconsiderate commentaries on classics with stable drive ratio certainly with sun gear, and the planetary pinion framework remains static, and can't be exported by the power of sun gear input.
Summary of the invention
According to kinology and dynamics correlative principle, when doing curvilinear motion, an object will produce centrifugal force, and its size is the function of the quality of object mass center angular velocity square, radius of curvature and particle.This method and device are promptly according to this principle, connect a rotor of can be relatively spool doing radial motion in planet wheel shaft one end, in planetary pinion framework relevant position specific inner curve track is set, the inner curve track center departs from respect to the planetary pinion axle center, and offset direction is on the output sense of rotation of wishing.So planet pin, rotor and inner curve track have constituted the rotational structure of an outer off-centre, interior guiding, the two ends of rotor length direction are alternately contacted with track and guarantee that barycenter is in the side that framework is expected sense of rotation.When the planet gear drives rotor rotation, because rotor centroid and planet pin exist eccentric, by the centrifugal action that rotates generation in orbit, track also produces constraint to rotor simultaneously, make rotor in rotation, do radial motion according to the rule of setting, cause the change of apex rotor along with rotor angle changes, to guarantee that rotor rotates a circle to finish secondary and effectively do work, to improve transmission efficiency the distance of planet pin.
When the centrifugal force that increases to generation when the rotating speed of rotor is enough to overcome outer load on the planetary pinion framework, promptly reaches and promote the purpose that the planetary pinion framework rotates output power.The rotating speed of rotor is high more, and the centrifugal force of generation is big more, and the planetary pinion frame stressing is big more, if outer load is constant, its rotational velocity is just high more, and promptly the rotating speed of sun gear changes the rapid change that can cause the planetary pinion framework.Constant in rotor speed, under the constant situation of the power on the planetary pinion framework of promptly acting on, outer load changes, and the rotating speed of planetary pinion framework also changes thereupon.Do not do under the change situation in device size and structure, get boundary dimension, change the quality of rotor, can change the power of transmission by density or the change rotor of adjusting rotor material.Therefore, can realize stepless change with the method design transmission device.
Introduce structure of the present invention and working principle in detail below in conjunction with accompanying drawing.
Fig. 1 is a principle front schematic view of the present invention, and Fig. 2 is the principle side schematic view.The present invention includes 1,2 of a sun gear or 2 with upper planetary gear 2 and framework 3 etc., the corresponding planet pin 4 of each planetary pinion and a rotor 5.Power is by sun gear 1 input, by framework 3 outputs.Planet pin 4 one ends and planetary pinion 2 fixedly link, the other end passes framework 3 and links with rotor 5 and drive rotor 5, planet pin 4 can be connected by bearing with framework 3, also gear connects, planet pin 4 is a square type structure 6 with the end that rotor 5 links, rotor 5 also is rectangle with the hole 8 that planet pin 4 links, and the length of length direction is greater than the length of planet pin 4 rectangle joining ends, guarantees that rotor 5 can do radially relative movement and do not interfere along rectangular opening 8 length directions and planet pin 4.Planetary pinion 2 evenly distributes on framework 3, and makes rotor 5 be in respective phase by the rectangle connection of planet pin 4.Framework 3 is provided with inner curve eccentric orbit 7, the center of eccentric orbit 7 is with respect to the center off-centre of planet pin 4, and the direction of eccentric direction for wishing that output is rotated, the diameter of eccentric orbit 7 is greater than rotor 5 length, guarantee that rotor 5 turns round in eccentric orbit 7, and when the barycenter of rotor 5 overlaps with planet pin 4 centers, rotor 5 two ends contact with eccentric orbit, other the time one end of rotor 5 and eccentric orbit 7 depart from section and keep in touch, and the other end of rotor 5 and eccentric orbit 7 break away near section, but and smooth conversion.Under eccentric orbit 7 actings in conjunction on planet pin 4 and the planetary frame 3, rotor 5 is done with planet gear 2 and is rotated the compound motion that moves radially with relative planet pin 4.When rotating, sun gear 1 drives planetary pinion 2 rotations, by planet pin 4 drive rotors 5 do with planet gear 2 rotate with relative to planetary pinion 4 diameters of axle to the compound motion that moves, because of rotor 5 eccentric rotations produce centrifugal force, overcome on the framework 3 and to promote framework 3 rotation output speeds behind the resistance, reach the speed change purpose.
Compare with existing drive technology, technological scheme of the present invention has following advantage: simple in structure, dimensional weight is little, has reduced the manufacture cost of device, and manufacturing is less demanding to equipment, and then improves the performance of car load and reduce integral vehicle cost; Do not need complicated manipulation control, easy for operation.
Description of drawings
Fig. 1 is a principle front schematic view of the present invention.
Fig. 2 is a principle of the invention side schematic view.
Embodiment
The present invention is applied in the automatic transimission, power and sun gear input end link, sun gear rotates and drives the planet wheel rotation when dynamic input, planet wheel drives rotor rotation by planet wheel shaft, rotor is changed the line of production living centrifugal action on framework in the eccentric orbit inward turning, when centrifugal force when acting on the framework resistance, framework begins to rotate, gimbal axis gets final product output speed.When input speed one regularly, it is big more to act on the framework resistance, output speed is more little; When acting on resistance one timing on the framework, input speed is big more, and output speed is also big more.Thereby realization self-adapting automatic gear shift.
Claims (5)
1, a kind of complete mechanical automatic stepless speed-changing device, comprise sun gear (1), planetary pinion (2), framework (3), dynamic action is imported in sun gear (1), by framework (3) output, it is characterized in that: planet pin (4) one ends and planetary pinion (2) fixedly link, and the other end passes framework (3) and rotor (5) the driving rotor (5) that links.
2, a kind of complete mechanical automatic stepless speed-changing device according to claim 1, it is characterized in that the end that planet pin (4) and rotor (5) link is a square type structure (6), the hole (8) that rotor (5) and planet pin (4) link also is rectangle, and in the length in rotor (5) the length direction hole length greater than planet pin (4) rectangle joining end (6).
3, a kind of complete mechanical automatic stepless speed-changing device according to claim 1 is characterized in that framework (3) is provided with eccentric orbit (7), and the center of eccentric orbit (7) is with respect to the center off-centre of planet pin (4).
4, a kind of complete mechanical automatic stepless speed-changing device according to claim 1, the diameter that it is characterized in that eccentric orbit (7) is greater than rotor (5) length.
5, a kind of complete mechanical automatic stepless speed-changing device according to claim 1 is characterized in that having 2 or 2 to be evenly distributed on the framework (3) with upper planetary gear (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810031414 CN101280838B (en) | 2008-05-29 | 2008-05-29 | Complete mechanical automatic stepless speed-changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810031414 CN101280838B (en) | 2008-05-29 | 2008-05-29 | Complete mechanical automatic stepless speed-changing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101280838A true CN101280838A (en) | 2008-10-08 |
| CN101280838B CN101280838B (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810031414 Expired - Fee Related CN101280838B (en) | 2008-05-29 | 2008-05-29 | Complete mechanical automatic stepless speed-changing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101280838B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396518A (en) * | 2020-04-30 | 2020-07-10 | 北京瑞昌同创机电科技有限公司 | Planetary centrifugal stepless transmission mechanism and control method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60116959A (en) * | 1983-11-28 | 1985-06-24 | Toyota Central Res & Dev Lab Inc | Continuously variable transmission for vehicles |
| CN2044666U (en) * | 1988-09-24 | 1989-09-20 | 王俊卿 | Stepless moment-changer with double planets |
| CN1020789C (en) * | 1988-09-30 | 1993-05-19 | 李培基 | Constant-power stepless speed variator |
| US4946429A (en) * | 1989-08-14 | 1990-08-07 | General Motors Corporation | Power transmission with a continuously variable speed range |
| CN2252274Y (en) * | 1996-01-09 | 1997-04-16 | 江苏省南京交通学校 | Hydraulic planetary buncher |
| CN1275687A (en) * | 1999-05-30 | 2000-12-06 | 李维农 | Automatic stepless speed variable system composed of epicyclic train |
-
2008
- 2008-05-29 CN CN 200810031414 patent/CN101280838B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396518A (en) * | 2020-04-30 | 2020-07-10 | 北京瑞昌同创机电科技有限公司 | Planetary centrifugal stepless transmission mechanism and control method thereof |
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| Publication number | Publication date |
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| CN101280838B (en) | 2013-06-26 |
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Granted publication date: 20130626 Termination date: 20190529 |