CN203309035U - Infinitely variable transmission of eccentric planet wheel and planet gear - Google Patents
Infinitely variable transmission of eccentric planet wheel and planet gear Download PDFInfo
- Publication number
- CN203309035U CN203309035U CN2013203353576U CN201320335357U CN203309035U CN 203309035 U CN203309035 U CN 203309035U CN 2013203353576 U CN2013203353576 U CN 2013203353576U CN 201320335357 U CN201320335357 U CN 201320335357U CN 203309035 U CN203309035 U CN 203309035U
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- gearbox unit
- gear
- input shaft
- eccentric type
- planet
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Abstract
The utility model relates to a mechanical transmission speed changer, and particularly relates to a planet gear infinitely variable transmission which is applied to a drive system to control a variable speed and adjust torque by using centrifugal force. A transmission unit comprises an input shaft, an output shaft, an eccentric planet gear, a sun gear, a gear ring and a planet carrier, wherein the transmission unit includes at least one stage; a common intermediate shaft is arranged in a cabinet; the input shaft and the output shaft of each stage of transmission unit are sleeved at the outer surface of the intermediate shaft, and separated from each other; the sun gear is fixed at the outer surface of the input shaft; the eccentric planet gear is meshed with the sun gear, and also meshed with a corresponding tooth of the gear ring; an overrun clutch is arranged between the gear rings of two adjacent stages of transmission units, and an overrun clutch is also arranged between the gear ring of the final-stage transmission unit and the cabinet. The infinitely variable transmission provided by the utility model is simple in structure, low in manufacturing cost, large in continuous bearing capacity of transmission ratio, and high in transmission efficiency; the torque can be directly and automatically adjusted according to load change in a working process; infinitely variable speed operation is achieved.
Description
Technical field
The utility model relates to a kind of mechanical transmission class speed changer, relates in particular to a kind of eccentric type planet wheel planet gear stageless speed variator of speed change, adjusting moment of torsion of controlling with the centrifugal force that utilizes the eccentric type planet wheel to produce when planetary gear set turns round for transmission system.
Background technique
At present, on automobile, using more automatic transmission technology is by the automatic transmission technology of fluid torque converter and epicyclic gear system combination, but it has obvious shortcoming: complex structure, velocity ratio is discontinuous, the control system complexity, kinetic equation loss is large, efficiency is low, and maintenance, maintenance cost is high.Another kind of buncher (CVT), it realizes speed change and transferring power by the fit diameter of metal driving belt and change driven wheel, but the weakness of buncher is that the metal tape bearing capacity is little, transmitted power is limited, and cost is high, the life-span is short, its control system very complex, cause supplementary costs to increase, at present can only be for low discharge capacity vehicle.Therefore, develop a kind of safe and reliable, simple in structure, easily manufactured, function admirable, efficiency is high, and cheap buncher, just becomes machinery industry urgent problem for many years.
Summary of the invention
The technical problems to be solved in the utility model overcomes above-mentioned the deficiencies in the prior art exactly, and provide a kind of eccentric type planet wheel planet gear stageless speed variator, it can directly adjust moment of torsion according to load variations in the course of the work automatically, realizes the stepless change running, and, simple in structure, low cost of manufacture, velocity ratio continuous bearing ability is large, and transmission efficiency is high, safe and reliable, long service life again.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of eccentric type planet wheel planet gear stageless speed variator, comprise casing, be arranged on gearbox unit and free wheel device on casing, described gearbox unit comprises input shaft, output shaft, the eccentric type planetary pinion, central gear, gear ring and planetary wheel carrier, described gearbox unit has one-level at least, a jack shaft is installed in casing, the input shaft of every grade of gearbox unit and output sleeve are contained in the jack shaft outer surface, gapped between input shaft and output shaft, central gear is fixed on the outer surface of input shaft, the eccentric type planetary pinion between central gear and gear ring along same circumference equidistant placement, eccentric type planetary pinion and central gear engagement, also with the tooth engagement of corresponding gear ring, the eccentric type planet pin is fixedly connected with planetary wheel carrier, planetary wheel carrier is fixedly connected with output shaft, between the gear ring of adjacent two-stage gearbox unit, free wheel device all is installed between the gear ring of final stage gearbox unit and casing.
Described eccentric type planet wheel is half of light half of heavy, the planetary pinion at center of gravity Bu Zai center.
Described gearbox unit is single-stage, between input shaft and central gear through spline joint.
Described gearbox unit is two-stage, the output shaft of first order gearbox unit, also the input shaft of second level gearbox unit simultaneously, and between the central gear of second level gearbox unit through spline joint, between the central gear of the input shaft of first order gearbox unit and first order gearbox unit through spline joint.
Described gearbox unit is three grades, the output shaft of first order gearbox unit, also the input shaft of second level gearbox unit simultaneously, and between the central gear of second level gearbox unit through spline joint, the output shaft of second level gearbox unit, simultaneously also the input shaft of third level gearbox unit, and between the central gear of third level gearbox unit through spline joint, between the central gear of the input shaft of first order gearbox unit and first order gearbox unit through spline joint.
The planetary quantity of described eccentric type is 2～6 pairs.
Described free wheel device is arranged on inboard, gear ring collar extension edge, and inner ring is arranged on adjacent gear ring, and the inner ring of final stage free wheel device is arranged on casing.
The beneficial effect of technical solutions of the utility model is:
1, structurally, the utility model is on the basis of every grade of gearbox unit planetary gear set, the protoplanet gear is changed into to one group of eccentric type planet wheel, the centrifugal force that utilizes it to produce in the running carrys out the active force between control centre's gear, planetary pinion and planetary wheel carrier, make output speed, moment of torsion, power reach maximum, the optimum state, overall structure is simple, and planetary gear set at different levels, eccentric type planetary gear structure are substantially the same again, strengthened interchangeability, manufacture cost significantly reduces.
2, structurally, the utility model has saved hydraulic control system and friction clutcch, and noise is low, and heating is few, and transmission oil is not perishable, and kinetic equation loss is low, and rotational efficienty is high, long service life, and also maintenance, maintenance expenses are also low.Therefore, the utility model helps to improve automotive performance, reduces fuel consume, is conducive to environmental protection, meets the demand for development of country to energy-conserving and environment-protective, and economic benefit, social benefit are remarkable, are beneficial to very much promotion and implementation.
Accompanying drawing and explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail, wherein:
Fig. 1 is one of structural representation of the utility model eccentric type planet wheel planet gear stageless speed variator;
Fig. 2 be the utility model eccentric type planet wheel planet gear stageless speed variator structural representation two;
Fig. 3 be the utility model eccentric type planet wheel planet gear stageless speed variator structural representation three;
Fig. 4 is the A-A sectional structure schematic diagram of eccentric type planet wheel planet gear stageless speed variator shown in Figure 2;
Fig. 5 is the B-B sectional structure schematic diagram of eccentric type planet wheel planet gear stageless speed variator shown in Figure 2;
Sequence number in figure: 1, casing, 2, input shaft, 3, output shaft, 4, central gear, 5, the eccentric type planetary pinion, 6, the eccentric type planet pin, 7, planetary wheel carrier, 8, gear ring, 9, free wheel device, 10, jack shaft.
Embodiment
Embodiment one:
Referring to Fig. 2, Fig. 4 to Fig. 5, in figure, the utility model eccentric type planet wheel planet gear stageless speed variator comprises casing 1, be arranged on gearbox unit and free wheel device 9 on casing 1, gearbox unit comprises input shaft 2, output shaft 3, eccentric type planetary pinion 5, central gear 4, gear ring 8 and planetary wheel carrier 7, a jack shaft 10 is installed in casing 1, the input shaft 2 of every grade of gearbox unit and output shaft 3 all are sleeved on jack shaft 10 outer surfaces, gapped between input shaft 2 and output shaft 3, central gear 4 is fixed on the outer surface of input shaft 2, 2～6 pairs of eccentric type planetary pinions 5 between central gear 4 and gear ring 8 along same circumference equidistant placement, eccentric type planetary pinion 5 and central gear 4 engagements, the also tooth engagement corresponding with gear ring 8, eccentric type planet pin 6 is fixedly connected with planetary wheel carrier 7, planetary wheel carrier 7 one ends are fixedly connected with output shaft 3, between adjacent two-stage gearbox unit gear ring 8, between final stage gearbox unit gear ring 8 and casing 1, free wheel device is installed, gearbox unit is two-stage, the output shaft 3 of first order gearbox unit, also the input shaft 2 of second level gearbox unit simultaneously, and spline joint between the central gear 4 of second level gearbox unit, spline joint between the input shaft 2 of first order gearbox unit and the central gear 4 of first order gearbox unit.
Working principle of the present utility model and specific works process are as follows:
In Fig. 2, when the stressed rotation of input shaft 2, the planetary gear set of first order gearbox unit planetary gear set and second level gearbox unit will be with the service performance running of planetary gear set, its input shaft 2 turns round in the same way with output shaft 3, start of run, the gear ring 8 of two planetary gear set has and input shaft 2, running power that output shaft 3 rotation directions are opposite, and this power acts on casing 1 by the first order and two of second level free wheel device 9, and two gear rings 8 in the first order and the second level can not be reversed.Two groups of left and right planetary gear set simultaneously, running in the same way, the effect that the central gear 4 of first order planetary gear set is subject to input shaft 2 power drives the planetary gears running, because first order eccentric type planet wheel 5 is driven by first order central gear 4 when autobiography, also around 4 revolution of first order central gear, because of its half of light half of heavy structural characteristics, produce in the running centrifugal force, this centrifugal action is on first order planetary wheel carrier 7 and first order central gear 4, they are controlled, raising along with the rotating speed of input shaft 2 and output shaft 3, the autobiography of first order eccentric type planet wheel 5 and revolution rotating speed also further strengthen, the also corresponding increase of centrifugal force that it produces, simultaneously first order planetary wheel carrier 7 and first order central gear 4 are produced to larger control force, when input shaft 2 and the rotating speed of output shaft 3 reach certain corresponding rotating speed, the centrifugal force that the first order eccentric type planet wheel 5 revolved round the sun at a high speed produces, first order central gear 4 and first order planetary wheel carrier 7 are pinned gradually, at this moment because first order central gear 4 and first order planetary wheel carrier 7 are synchronized, running in the same way, first order eccentric type planet wheel 5 is subjected to its control to stop autobiography, only around 4 revolution of first order central gear, drive simultaneously first order gear ring 8 in the same way, synchronized running, at this moment first order free wheel device 9 also loses the effect of clamping down on to first order gear ring 8, first order planetary gear set integral body and input shaft 2, output shaft 3 is done in the same way, synchronized running.The rotating speed of the rotating speed of input shaft 2 and output shaft 3 is to strengthen gradually, the centrifugal force that eccentric type planet wheel 5 produces also strengthens gradually, so, the locking of first order central gear 4 and first order planetary wheel carrier 7, it is also a change procedure grown from weak to strong gradually, the process of speed change is continuous gradation, therefore, has realized electrodeless variable-speed.Second level group planetary gear set with first order group planetary gear set due to identical internal structure and identical service performance being arranged, its working principle and process are identical, at this, no longer repeat, its difference is: the time that second level group planetary gear set completes speed change slightly lags behind first order planetary gear set.
Embodiment two:
Referring to Fig. 1, in figure, the present embodiment vehicle indicator section identical with embodiment one represent that meaning is identical and no longer repeat, and its difference is: described gearbox unit is single-stage, spline joint between input shaft 2 and central gear 4.
Embodiment three:
Referring to Fig. 3, in figure, the present embodiment vehicle indicator section identical with embodiment one represents that meaning is identical and no longer repeats, its difference is: described gearbox unit is three grades, the output shaft 3 of first order gearbox unit, also the input shaft 2 of second level gearbox unit simultaneously, and spline joint between the central gear 4 of second level gearbox unit, the output shaft 3 of second level gearbox unit, also the input shaft 2 of third level gearbox unit simultaneously, and spline joint between the central gear 4 of third level gearbox unit, spline joint between the input shaft 2 of first order gearbox unit and the central gear 4 of first order gearbox unit.
The foregoing is only the schematic embodiment of the utility model; not in order to limit scope of the present utility model; any those skilled in the art makes under the prerequisite that does not break away from design of the present invention and principle equivalent variations and modification, all should belong to the scope that the utility model is protected.
Claims (7)
1. eccentric type planet wheel planet gear stageless speed variator, comprise casing, be arranged on gearbox unit and free wheel device on casing, it is characterized in that: described gearbox unit comprises input shaft, output shaft, the eccentric type planetary pinion, central gear, gear ring and planetary wheel carrier, described gearbox unit has one-level at least, a jack shaft is installed in casing, the input shaft of every grade of gearbox unit and output sleeve are contained in the jack shaft outer surface, gapped between input shaft and output shaft, central gear is fixed on the outer surface of input shaft, the eccentric type planetary pinion between central gear and gear ring along same circumference equidistant placement, eccentric type planetary pinion and central gear engagement, also with the tooth engagement of corresponding gear ring, the eccentric type planet pin is fixedly connected with planetary wheel carrier, planetary wheel carrier is fixedly connected with output shaft, between the gear ring of adjacent two-stage gearbox unit, free wheel device all is installed between the gear ring of final stage gearbox unit and casing.
2. eccentric type planet wheel planet gear stageless speed variator according to claim 1 is characterized in that: described eccentric type planet wheel is for half of light half of heavy, the planetary pinion at center of gravity Bu Zai center.
3. eccentric type planet wheel planet gear stageless speed variator according to claim 1, it is characterized in that: described gearbox unit is single-stage, between input shaft and central gear through spline joint.
4. eccentric type planet wheel planet gear stageless speed variator according to claim 1, it is characterized in that: described gearbox unit is two-stage, the output shaft of first order gearbox unit, also the input shaft of second level gearbox unit simultaneously, and between the central gear of second level gearbox unit through spline joint, between the central gear of the input shaft of first order gearbox unit and first order gearbox unit through spline joint.
5. eccentric type planet wheel planet gear stageless speed variator according to claim 1, it is characterized in that: described gearbox unit is three grades, the output shaft of first order gearbox unit, also the input shaft of second level gearbox unit simultaneously, and between the central gear of second level gearbox unit through spline joint, the output shaft of second level gearbox unit, also the input shaft of third level gearbox unit simultaneously, and between the central gear of third level gearbox unit through spline joint, between the central gear of the input shaft of first order gearbox unit and first order gearbox unit through spline joint.
6. eccentric type planet wheel planet gear stageless speed variator according to claim 1, is characterized in that, the planetary quantity of described eccentric type is 2～6 pairs.
7. eccentric type planet wheel planet gear stageless speed variator according to claim 1, is characterized in that, described free wheel device is arranged on inboard, gear ring collar extension edge, and inner ring is arranged on adjacent gear ring, and the inner ring of final stage free wheel device is arranged on casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203353576U CN203309035U (en) | 2013-06-13 | 2013-06-13 | Infinitely variable transmission of eccentric planet wheel and planet gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203353576U CN203309035U (en) | 2013-06-13 | 2013-06-13 | Infinitely variable transmission of eccentric planet wheel and planet gear |
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| Publication Number | Publication Date |
|---|---|
| CN203309035U true CN203309035U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203353576U Expired - Fee Related CN203309035U (en) | 2013-06-13 | 2013-06-13 | Infinitely variable transmission of eccentric planet wheel and planet gear |
Country Status (1)
| Country | Link |
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| CN (1) | CN203309035U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335074A (en) * | 2013-06-13 | 2013-10-02 | 王俊生 | Planetary gear continuously variable transmission with eccentric type planetary gear |
| CN110242714A (en) * | 2019-06-18 | 2019-09-17 | 北京航空航天大学 | A kind of two-level decelerating motor |
-
2013
- 2013-06-13 CN CN2013203353576U patent/CN203309035U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335074A (en) * | 2013-06-13 | 2013-10-02 | 王俊生 | Planetary gear continuously variable transmission with eccentric type planetary gear |
| CN103335074B (en) * | 2013-06-13 | 2017-02-08 | 王俊生 | Planetary gear continuously variable transmission with eccentric type planetary gear |
| CN110242714A (en) * | 2019-06-18 | 2019-09-17 | 北京航空航天大学 | A kind of two-level decelerating motor |
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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 |
Granted publication date: 20131127 Termination date: 20170613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |