CN103335074B - Planetary gear continuously variable transmission with eccentric type planetary gear - Google Patents
Planetary gear continuously variable transmission with eccentric type planetary gear Download PDFInfo
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- CN103335074B CN103335074B CN201310231366.5A CN201310231366A CN103335074B CN 103335074 B CN103335074 B CN 103335074B CN 201310231366 A CN201310231366 A CN 201310231366A CN 103335074 B CN103335074 B CN 103335074B
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- gearbox unit
- eccentric type
- planetary gear
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Abstract
The invention relates to a mechanical transmission type transmission, in particular to planetary gear continuously variable transmission used for a transmission system, which is capable of variable speed control and torque adjustment by using centrifugal force. A transmission unit comprises an input shaft, an output shaft, an eccentric type planetary gear, a central gear, a gear ring and a planet wheel carrier; at least one stage of transmission unit is included, a common intermediate shaft is installed in a case, and the input shaft and the output shaft of each stage of transmission unit are sleeved on the outer surface of the common intermediate shaft and separated from each other; the central gear is fixed on the outer surface of the input shaft; the eccentric type planetary gear is meshed with the central gear and the corresponding teeth on the gear ring; overrun clutches are installed between the gear rings of two adjacent transmission units, and between a final stage transmission unit and the case. The planetary gear continuously variable transmission has the advantages of simple structure, low manufacturing cost, large transmission ratio and continuous bearing capacity and high transmission efficiency, and is capable of automatic torque adjustment directly according to variation in load during the process of operation, so as to realize infinitely variable speed operation.
Description
Technical field
The present invention relates to a kind of machine driving class variator, more particularly, to a kind of drive system that is used for is with using eccentric type row
The centrifugal force that star-wheel produces when operating in planetary gear set to control speed change, adjust moment of torsion eccentric type planetary gear planetary gear no
Level variator.
Background technology
At present, on automobile using more automatic transmission technology be by fluid torque-converter and planetary gear system combination
Automatic transmission technology, but it has obvious shortcoming：Complex structure, gear ratio is discontinuous, and control system is complicated, kinetic equation loss
Greatly, efficiency is low, and maintenance, maintenance cost are high.Another kind of buncher（CVT）, it is used metal drive belt and changes driven wheel
Fit diameter realizing speed change and transmission power, but the weakness of buncher is that metal tape bearing capacity is little, transmits power
Limited, and cost is high, short life, its control system is considerably complicated, causes supplementary costs to increase, is only used for low discharge capacity car at present
Type.Therefore, exploitation is a kind of safe and reliable, and structure is simple, easily manufactured, function admirable, efficiency high, and cheap electrodeless change
Fast device, becomes as machinery industry urgent problem for many years.
Content of the invention
The technical problem to be solved in the present invention is exactly to overcome above-mentioned the deficiencies in the prior art, and provides a kind of eccentric type planet
Wheel planet gear stageless speed variator, it can realize stepless in the course of the work directly according to load change adjust automatically moment of torsion
Changed speed operation, and, structure is simple, low cost of manufacture, and gear ratio continuous bearing ability is big, and transmission efficiency is safe and reliable, and
Long service life.
For solving above-mentioned technical problem, the technical scheme is that：
A kind of eccentric type planetary gear planet gear stageless speed variator, including casing, is arranged on the gearbox unit in casing
And freewheel clutch, described gearbox unit include input shaft, output shaft, eccentric type planetary gear, central gear, gear ring and
Planetary wheel carrier, described gearbox unit at least one-level, a jackshaft, the input of every grade of gearbox unit are installed in casing
Axle and output sleeve are contained in jackshaft outer surface, have gap between input shaft and output shaft, and central gear is fixed on input shaft
Outer surface, eccentric type planetary gear between central gear and gear ring along same circumference equidistant placement, eccentric type planetary gear with
Central gear engages, and also engages with the tooth of corresponding gear ring, eccentric type planetary gear shaft is fixedly connected with planetary wheel carrier, planetary gear
Frame is fixedly connected with output shaft, between the gear ring of adjacent two-stage gearbox unit, the gear ring of final stage gearbox unit and casing it
Between be mounted on freewheel clutch.
Described eccentric type planetary gear is one side of something gently half of weight, the planetary gear at center of gravity Bu center.
Described gearbox unit is single-stage, through spline connection between input shaft and central gear.
Described gearbox unit is two-stage, and the output shaft of first order gearbox unit, is also second level variator list simultaneously
The input shaft of unit, through spline connection and the central gear of second level gearbox unit between, the input of first order gearbox unit
Through spline connection between the central gear of axle and first order gearbox unit.
Described gearbox unit is three-level, and the output shaft of first order gearbox unit, is also second level variator list simultaneously
The input shaft of unit, through spline connection and the central gear of second level gearbox unit between, the output of second level gearbox unit
Axle, is also to connect through spline between the input shaft of third level gearbox unit, and the central gear of third level gearbox unit simultaneously
Connect, through spline connection between the central gear of the input shaft of first order gearbox unit and first order gearbox unit.
The planetary quantity of described eccentric type is right for 2～6.
Described freewheel clutch is arranged on inside gear ring collar extension edge, and inner ring is arranged on adjacent gear ring, and final stage surmounts
The inner ring of clutch is arranged in casing.
The beneficial effect of technical solution of the present invention is：
1st, in structure, the present invention, on the basis of every grade of gearbox unit planetary gearsets, protoplanet gear is changed
Become one group of eccentric type planetary gear, the centrifugal force producing in the running using it is come control centre's gear, planetary gear and planetary gear
Active force between frame, makes output speed, moment of torsion, power reach maximum, optimum state, and overall structure is simple, planet teeth at different levels
Wheel group, eccentric type planetary gear structure are again essentially the same, enhance interchangeability, manufacturing cost significantly reduces.
2nd, in structure, present invention eliminates hydraulic control system and slip clutch, noise is low, and heating is few, speed change
Device oil is unlikely to deteriorate, and kinetic equation loss is low, and rotational efficienty is high, long service life, and, maintenance, maintenance cost are also low.Therefore, originally
Invention is favorably improved automotive performance, reduces fuel consumption, is conducive to environmental conservation, meets country and the development of energy-conserving and environment-protective is wanted
Ask, economic benefit, social benefit are notable, are especially advantageous for promotion and implementation.
Accompanying drawing and explanation
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail, wherein：
Fig. 1 is one of structural representation of eccentric type planetary gear planet gear stageless speed variator of the present invention；
Fig. 2 is the two of the structural representation of eccentric type planetary gear planet gear stageless speed variator of the present invention；
Fig. 3 is the three of the structural representation of eccentric type planetary gear planet gear stageless speed variator of the present invention；
Fig. 4 is the A-A cross section structure diagram of eccentric type planetary gear planet gear stageless speed variator shown in Fig. 2；
Fig. 5 is the B-B cross section structure diagram of eccentric type planetary gear planet gear stageless speed variator shown in Fig. 2；
In figure sequence number：1st, casing, 2, input shaft, 3, output shaft, 4, central gear, 5, eccentric type planetary gear, 6, eccentric
Type planetary gear shaft, 7, planetary wheel carrier, 8, gear ring, 9, freewheel clutch, 10, jackshaft.
Specific embodiment
Embodiment one：
Referring to Fig. 2, Fig. 4 to Fig. 5, in figure, eccentric type planetary gear planet gear stageless speed variator of the present invention includes casing 1,
It is arranged on the gearbox unit in casing 1 and freewheel clutch 9, gearbox unit includes input shaft 2, output shaft 3, eccentric type row
Star gear 5, central gear 4, gear ring 8 and planetary wheel carrier 7, are provided with a jackshaft 10 in casing 1, every grade of gearbox unit
Input shaft 2 and output shaft 3 are all sleeved on jackshaft 10 outer surface, have gap between input shaft 2 and output shaft 3, and central gear 4 is solid
It is scheduled on the outer surface of input shaft 2,2～6 pairs of eccentric type planetary gears 5 are equidistant along same circumference between central gear 4 and gear ring 8
Arrangement, eccentric type planetary gear 5 engages with central gear 4, also tooth engagement corresponding with gear ring 8, eccentric type planetary gear shaft 6 and
Planetary wheel carrier 7 is fixedly connected, and planetary wheel carrier 7 one end is 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, freewheel clutch is installed；Gearbox unit is two-stage, first order variator
The output shaft 3 of unit, is also the input shaft 2 of second level gearbox unit simultaneously, the central gear 4 with second level gearbox unit
Between spline connection, between the input shaft 2 of first order gearbox unit and the central gear 4 of first order gearbox unit, spline is even
Connect.
The operation principle of the present invention and specific work process are as follows：
In fig. 2, when input shaft 2 Forced rotation, first order gearbox unit planetary gearsets and second level variator
By with the service performance operating of planetary gearsets, its input shaft 2 and output shaft 3 operate the planetary gearsets of unit in the same direction, operating
At the initial stage, the gear ring 8 of two planetary gearsets has the operating power contrary with input shaft 2, output shaft 3 rotation direction, and this power passes through the
One-level and the second level two freewheel clutch 9 act in casing 1, so that the first order and the second level two gear ring 8 can not be inverted.Left
Right two groups of planetary gearsets simultaneously, operate in the same direction, made by input shaft 2 power by the central gear 4 of first order planetary gearsets
With driving planetary gears operating, because first order eccentric type planetary gear 5 is driven by first order central gear 4, autobiography is same
When, also revolve round the sun around first order central gear 4, because of its one side of something gently half of heavy architectural characteristic, produce centrifugal force in the running, this
Centrifugal action, on first order planetary wheel carrier 7 and first order central gear 4, is controlled to them, with input shaft 2 and defeated
The raising of the rotating speed of shaft 3, the autobiography of first order eccentric type planetary gear 5 and revolution rotating speed also increase further, it produce from
Mental and physical efforts also accordingly increase, and produce bigger controling power to first order planetary wheel carrier 7 and first order central gear 4 simultaneously, work as input
Axle 2 reaches necessarily corresponding rotating speed, the centrifugation that the first order eccentric type planetary gear 5 of revolution produces at a high speed with the rotating speed of output shaft 3
Power, first order central gear 4 is gradually pinned with first order planetary wheel carrier 7, at this moment due to first order central gear 4 and the first order
Planetary wheel carrier 7 is synchronized, operate in the same direction, and first order eccentric type planetary gear 5 is controlled stopping autobiography, only around first order central gear
4 revolution, simultaneously drive first order gear ring 8 in the same direction, synchronized operate, at this moment first order freewheel clutch 9 also loses to first order tooth
Enclose 8 effect of clamping down on, overall being done with input shaft 2, output shaft 3 of first order planetary gearsets is operated in the same direction, at the same speed.Input shaft 2
Rotating speed is to be gradually increased with the rotating speed of output shaft 3, and the centrifugal force that eccentric type planetary gear 5 produces is also gradually enhanced, so, the
Primary centre gear 4 and the locking of first order planetary wheel carrier 7, are also a change procedure gradually growing from weak to strong, the mistake of speed change
Journey is continuous gradation, it is thereby achieved that electrodeless variable-speed.Second level group planetary gearsets and first order group planetary gearsets due to
Have that identical internal structure and identical service performance, its operation principle and process are identical, here no longer repeats, its difference exists
In：The time that second level group planetary gearsets complete speed change slightly lags behind first order planetary gearsets.
Embodiment two：
Referring to Fig. 1, in figure, the present embodiment vehicle indicator section identical with embodiment one represents same meaning and no longer repeats, its area
It is not：Described gearbox unit is single-stage, spline connection 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 same meaning and no longer repeats, its area
It is not：Described gearbox unit is three-level, and the output shaft 3 of first order gearbox unit, is also second level variator list simultaneously
The input shaft 2 of unit, the spline connection and central gear 4 of second level gearbox unit between, the output of second level gearbox unit
Axle 3, is also the input shaft 2 of third level gearbox unit simultaneously, and spline connects and the central gear 4 of third level gearbox unit between
Connect, spline connection 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 specific embodiment of the present invention, be not limited to the scope of the present invention, any
Equivalent variations and modification that those skilled in the art is made on the premise of without departing from present inventive concept and principle, all should belong to
In the scope of protection of the invention.
Claims (3)
1. a kind of eccentric type planetary gear planet gear stageless speed variator, including casing, be arranged on gearbox unit in casing and
Freewheel clutch, is characterized in that：Described gearbox unit includes input shaft, output shaft, eccentric type planetary gear, centre tooth
Wheel, gear ring and planetary wheel carrier, described gearbox unit is two-stage, is provided with a jackshaft, every grade of gearbox unit in casing
Input shaft and output sleeve be contained in jackshaft outer surface, have gap between input shaft and output shaft, central gear is fixed on defeated
Enter the outer surface of axle, eccentric type planetary gear is between central gear and gear ring along same circumference equidistant placement, eccentric type planet
Gear is engaged with central gear, also engages with the tooth of corresponding gear ring, eccentric type planetary gear shaft 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, the gear ring of final stage gearbox unit with
It is mounted on freewheel clutch between casing；Described eccentric type planetary gear is one side of something gently half of weight, the planet at center of gravity Bu center
Gear；Described freewheel clutch is arranged on inside gear ring collar extension edge, and inner ring is arranged on adjacent gear ring, final stage overdrive clutch
The inner ring of device is arranged in casing, the output shaft of first order gearbox unit, is also the input of second level gearbox unit simultaneously
Through spline connection between axle, and the central gear of second level gearbox unit, the input shaft of first order gearbox unit and first
Through spline connection between the central gear of level gearbox unit.
2. the eccentric type planetary gear planet gear stageless speed variator according to claim 1, is characterized in that, described bias
The planetary quantity of type is right for 2～6.
3. a kind of eccentric type planetary gear planet gear stageless speed variator, including casing, be arranged on gearbox unit in casing and
Freewheel clutch, is characterized in that：Described gearbox unit includes input shaft, output shaft, eccentric type planetary gear, centre tooth
Wheel, gear ring and planetary wheel carrier, described gearbox unit is three-level, is provided with a jackshaft, every grade of gearbox unit in casing
Input shaft and output sleeve be contained in jackshaft outer surface, have gap between input shaft and output shaft, central gear is fixed on defeated
Enter the outer surface of axle, eccentric type planetary gear is between central gear and gear ring along same circumference equidistant placement, eccentric type planet
Gear is engaged with central gear, also engages with the tooth of corresponding gear ring, eccentric type planetary gear shaft 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, the gear ring of final stage gearbox unit with
It is mounted on freewheel clutch between casing；Described eccentric type planetary gear is one side of something gently half of weight, the planet at center of gravity Bu center
Gear；Described freewheel clutch is arranged on inside gear ring collar extension edge, and inner ring is arranged on adjacent gear ring, final stage overdrive clutch
The inner ring of device is arranged in casing, the output shaft of first order gearbox unit, is also the input of second level gearbox unit simultaneously
Through spline connection between axle, and the central gear of second level gearbox unit, the output shaft of second level gearbox unit, simultaneously
It is through spline connection, the first order between the input shaft of third level gearbox unit, and the central gear of third level gearbox unit
Through spline connection between the central gear of the input shaft of gearbox unit and first order gearbox unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310231366.5A CN103335074B (en) | 2013-06-13 | 2013-06-13 | Planetary gear continuously variable transmission with eccentric type planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310231366.5A CN103335074B (en) | 2013-06-13 | 2013-06-13 | Planetary gear continuously variable transmission with eccentric type planetary gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103335074A CN103335074A (en) | 2013-10-02 |
| CN103335074B true CN103335074B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310231366.5A Active CN103335074B (en) | 2013-06-13 | 2013-06-13 | Planetary gear continuously variable transmission with eccentric type planetary gear |
Country Status (1)
| Country | Link |
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| CN (1) | CN103335074B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619939A (en) * | 2012-03-14 | 2012-08-01 | 王俊生 | Centrifugal force controlled planet gear stepless transmission |
| CN103032541A (en) * | 2012-12-11 | 2013-04-10 | 王俊生 | Eccentric type planet wheel and planet gear synchronous clutch |
| CN203309035U (en) * | 2013-06-13 | 2013-11-27 | 王俊生 | Infinitely variable transmission of eccentric planet wheel and planet gear |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6323050A (en) * | 1986-07-15 | 1988-01-30 | Bridgestone Cycle Co | Continuously variable transmission for motor cycle |
| JP2005048940A (en) * | 2003-07-29 | 2005-02-24 | Makoto Nagayoshi | Continuously variable transmission |
-
2013
- 2013-06-13 CN CN201310231366.5A patent/CN103335074B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619939A (en) * | 2012-03-14 | 2012-08-01 | 王俊生 | Centrifugal force controlled planet gear stepless transmission |
| CN103032541A (en) * | 2012-12-11 | 2013-04-10 | 王俊生 | Eccentric type planet wheel and planet gear synchronous clutch |
| CN203309035U (en) * | 2013-06-13 | 2013-11-27 | 王俊生 | Infinitely variable transmission of eccentric planet wheel and planet gear |
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| Publication number | Publication date |
|---|---|
| CN103335074A (en) | 2013-10-02 |
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