CN207049265U - Planet gear stepless speed changer - Google Patents
Planet gear stepless speed changer Download PDFInfo
- Publication number
- CN207049265U CN207049265U CN201720931265.2U CN201720931265U CN207049265U CN 207049265 U CN207049265 U CN 207049265U CN 201720931265 U CN201720931265 U CN 201720931265U CN 207049265 U CN207049265 U CN 207049265U
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- CN
- China
- Prior art keywords
- gear
- buncher
- planet
- speed changer
- planet carrier
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of planet gear stepless speed changer, include planetary gears, buncher, the input shaft of buncher is connected by first gear group with sun gear, the output shaft of buncher is connected by second gear group with gear ring, power passes to planet carrier by sun gear with the gear ring driven by buncher, it is wide that there is this planet gear stepless speed changer transmission efficiency to be in high efficiency range torque ratio scope, it is big to transmit torsion, output torque can not only be increased, output speed can also be improved, the advantages of not only combining existing buncher, the transimission power of existing buncher is also improved simultaneously, transmit torsion and efficiency of transmission.
Description
Technical field
Power transmission field is the utility model is related to, relates in particular to stepless speed change device, reductor, speed change can be used as
The transmission device application such as device.
Background technology
Buncher mainly has the buncher of hydraulic power, and such as fluid coupling, fluid torque-converter, can modify tone stream
Measure pump etc.；Mechanically operated buncher, such as friction type stepless speed changer, conical ring formula buncher, the stepless change of toothed-chain type
Fast device, variable v-belt drive, V-type variable v-belt drive etc.；Electrically-driven buncher, such as variable speed DC motor,
Variable speed AC motor etc..As wide variety of CVT variable speed part is driven by oil pump, driving wheel, metal tape at present
Wheel and control cylinder composition, the diameter of driving wheel and driven pulley in certain scope can consecutive variations, so as to realize gearratio
Consecutive variations, gearratio adjusts CVT gearratio typically between 0.4-7 by hydraulic control system according to traveling road conditions
Change, CVT need clutch to ensure that vehicle starting is steady, and transmission torsion is less than normal when CVT transmissions have transmission easily skids, and passes
Need speed-ratio regulation device to pass through sequential operation result to perform control during dynamic ratio change, be not suitable for work during acute variation transmission
Make.Fluid torque-converter turbine, guide wheel composition, can not only transmit torque, moreover it is possible to before pump impeller rotating speed and torque are constant by pump impeller
Put the size for changing runner torque.Fluid torque-converter mainly adjusts hydraulic moment changeable by the active state of liquid fluid and guide wheel
The gearratio of device, and gearratio is the number of the continuous variable less than or equal to 1, fluid torque-converter is in bending moment during efficiency operation
Coefficient is smaller, and excessive torque ratio makes the efficiency of fluid torque-converter substantially reduce, when pump impeller has torsion output to turbine, turbine
Rotating speed is less than pump impeller.
Utility model content
The utility model is in high efficiency range torque ratio model mainly solving the technical problems that providing a kind of transmission efficiency
Width is enclosed, transmission torsion is big, can not only increase output torque, can also improve the planetary gear stepless speed changing transmission of output speed
Device, the advantages of not only combining existing buncher, while the transimission power of existing buncher is also improved, transmission is turned round
Power and efficiency of transmission.
To achieve the above object, the utility model provides following technical scheme：Planet gear stepless speed changer includes
There are the first planetary gears, buncher, the input shaft of described buncher passes through first gear group and the first row
The sun gear connection of star gear mechanism, the output shaft of described buncher pass through second gear group and the first planet gear mechanism
The gear ring connection of structure, sun gear of the power by the first planetary gears and the first planetary gear by buncher driving
The gear ring of mechanism passes to the planet carrier of the first planetary gears.
As to improvement of the present utility model, the second planet tooth is additionally provided with described planet gear stepless speed changer
Mechanism is taken turns, the sun gear of the first planetary gears is connected by the 3rd gear train with the sun gear of the second planetary gears,
The planet carrier of first planetary gears is connected by the 4th gear train with the gear ring of the second planetary gears, and power passes through
Two planetary sun gear inputs are exported by the second planetary planet carrier.
As to improvement of the present utility model, when the speed of described buncher is than being 1, gear ring and sun wheel speed
Than scope between 0.1 to 10.
As to improvement of the present utility model, prime clutch is provided with the input shaft of described buncher,
Secondary clutch is provided with the output shaft of described buncher, ring gearwheel clutch is provided with described gear ring,
Planet carrier clutch is provided with described planet carrier；When ring gearwheel clutch combines, gear ring is fixed, prime clutch and time
Level clutch separation, power are inputted by sun gear, exported after being slowed down by planet carrier, and gearratio is fixed value；When planet carrier clutch
When device combines, planet carrier and gear ring combine locking or planet carrier and sun gear combination locking, prime clutch and secondary clutch
Device is separated, and power is inputted by sun gear, by planet carrier equispeed output, gearratio 1.
As to improvement of the present utility model, described buncher is the buncher of hydraulic power, such as fluid power
Coupler, fluid torque-converter, can modify tone flow pump buncher etc..
As to improvement of the present utility model, when described buncher is fluid coupling or fluid torque-converter, when
When planet carrier and sun gear rotating ratio are close to 1, the pump impeller and secondary speed of buncher are than scope between 1.1-10.
As to improvement of the present utility model, described buncher is mechanically operated buncher, is such as rubbed
Formula buncher, conical ring formula buncher, gear chain type stepless variable speed unit, variable v-belt drive, V-type Belt-type Adjustable-speed
Device etc..
Described buncher is electrically-driven buncher, such as variable speed DC motor, variable speed AC motor etc..
Motor is provided with described gear ring as to improvement of the present utility model, motor driven gear ring and to planet carrier
Apply active force or use recovery kinetic energy as generator when gear ring passive matrix rotates and store electric energy.
Beneficial effect using above technical scheme is：The planet gear stepless speed changer is by planetary gears and nothing
The combination of level speed changer is realized, and the combination side that current automatic transmission planetary gear mechanism is connected with fluid torque-converter
Unlike formula, it's too late, and speed changer is arranged on planetary inside, by being arranged on buncher input and output end
Gear train connect sun gear and gear ring, and by buncher from sun gear to gear ring transmit torsion.Due to row
The outputting torsion of planet carrier in star gear is together decided on by sun gear and gear ring, so adjustable by adjusting buncher
Save the output speed and outputting torsion of planet carrier.When gear ring is consistent with sun gear direction of rotation, with the increase of gear ring rotating speed,
The output speed increase torsion for distributing the planet carrier while power increase on gear ring is reduced.When variable speed is by hydraulic moment changeable
When device is formed, because fluid torque-converter has automatic adaptability, i.e., with the change of external drag, within the specific limits automatically
Change turbine wheel shaft on output torque and rotating speed, and in steady-working state ability, so can without electronic computing units,
Execution unit moment of torsion according to needed for actual loading automatically adjusts the output torque and rotating speed of planet carrier.When gear ring rotating speed is relatively low,
Gear ring exports high torque, and it is smaller that required power accounts for total planet gear stepless speed changer input general power proportion, it is assumed that is
25%, at the same assume fluid torque-converter during the state efficiency be 50%, setting gear mechanism transmission efficiency be approximately equal to 100%
In the case of, this planet gear stepless speed changer is also by the transmission efficiency of acquisition 75%；When gear ring rotating speed is higher, gear ring output
Compared with low torque, it is larger that required power accounts for total planet gear stepless speed changer input general power proportion, it is assumed that is 40%, simultaneously
Assuming that the efficiency of fluid torque-converter is 80% during the state, in the case where setting gear mechanism transmission efficiency is approximately equal to 100%, this
Planet gear stepless speed changer also greatly improves the transmission efficiency of acquisition 90% when fluid torque-converter is used alone
Delivery efficiency, power output and outputting torsion.When also nesting is provided with outside planet gear stepless speed changer of the present utility model
During the second planetary gears, buncher is higher by with the bigger power output of less variable propagation Power Control
Delivery efficiency, while whole system is all obtained efficient variable speed working effect.
Brief description of the drawings
Fig. 1 is a kind of decomposition texture schematic diagram of embodiment of the utility model.
Fig. 2 is the decomposition texture schematic diagram of the utility model another kind embodiment.
Mark is in figure：
1- sun gears, 11- first gear groups,
2- gear rings, 12- second gear groups, 21- ring gearwheel clutch,
3- planet carriers, 31- planet carrier clutch,
5- bunchers, 51- prime clutches, 52- secondary clutch.
Embodiment
Describe the preferred embodiment of planet gear stepless speed changer of the present utility model in detail below in conjunction with the accompanying drawings.
Refer to Fig. 1, a kind of planet gear stepless speed changer that Fig. 1 is disclosed, described planetary gear stepless speed changing dress
Put and include the first planetary gears, buncher 5, the input shaft of described buncher 5 passes through first gear group
11 are connected with sun gear 1, and the output shaft of described buncher 5 is connected by second gear group 12 with gear ring 2, and power passes through
Sun gear 1 passes to planet carrier 3 with the gear ring 2 driven by buncher 5.As to improvement of the present utility model, stepless change
Prime clutch 51 is provided with the input shaft of fast device 5, secondary clutch is provided with the output shaft of described buncher 5
Device 52, ring gearwheel clutch 21 is provided with described gear ring 2, planet carrier clutch 31 is provided with described planet carrier 3；
When ring gearwheel clutch 21 combines, gear ring 2 is fixed, and prime clutch 51 and secondary clutch 52 separate, and power is defeated by sun gear 1
Enter, exported after being slowed down by planet carrier 3, gearratio is fixed value；When planet carrier clutch 31 combines, planet carrier 3 and the knot of gear ring 2
Close locking or planet carrier 3 and sun gear 1 combines locking, prime clutch 51 and secondary clutch 52 separate, and power is by the sun
The input of wheel 1, by the equispeed output of planet carrier 3, gearratio 1.When planet gear stepless speed changer starts, the institute of planet carrier 3
The driving torque needed is larger, and buncher 5 is disconnected and is stopped by prime clutch 51 and secondary clutch 52, sets
Motor 5 on gear ring applies active force to planet carrier, can be generated electricity when motor passive matrix rotates and store electric energy, such as tooth
Enclose 2 rotate counterclockwises and when planet carrier needs braking.
Preferably, when the speed of described buncher 5 is than being 1, gear ring 2 is with the rotating ratio scope of sun gear 1 0.1 to 10
Between.
Preferably, described buncher 5 is the buncher of hydraulic power, such as fluid coupling, hydraulic moment changeable
Device, can modify tone flow pump buncher etc..
Preferably, when described buncher 5 is fluid coupling or fluid torque-converter, 1 turn of planet carrier 3 and sun gear
When speed is than close to 1, the pump impeller and secondary speed of buncher are than scope between 1.1-10.
Preferably, described buncher（5）For mechanically operated buncher, such as friction type stepless speed changer,
Conical ring formula buncher, gear chain type stepless variable speed unit, variable v-belt drive, V-type variable v-belt drive（On present automobile
Conventional CVT bunchers）Deng.
Preferably, described buncher（5）For electrically-driven buncher, such as variable speed DC motor, speed change
Alternating current generator etc..
Fig. 2 is referred to, Fig. 2 is second of embodiment of planet gear stepless speed changer of the present utility model, described
Planet gear stepless speed changer includes the first planetary gears, buncher 5, and the second planetary gears is described
The input shaft of buncher 5 be connected by first gear group 11 with the sun gear 1 of the first planetary gears, described nothing
The output shaft of level speed changer 5 is connected by second gear group 12 with the gear ring 2 of the first planetary gears, the first planet gear mechanism
The sun gear of structure is connected by the 3rd gear train with the sun gear of the second planetary gears, the planet of the first planetary gears
Frame 3 is connected by the 4th gear train with the gear ring of the second planetary gears, and power is defeated by the second planetary sun gear
Enter by the second planetary planet carrier output.
When buncher and planetary sun gear are driven with gear ring by meshed gears group, power is by gear ring
Input is exported by planet carrier；
When buncher and planetary sun gear are driven with planet carrier by meshed gears group, power is by too
Sun wheel input is exported by gear ring；
When buncher and planetary sun gear are driven with planet carrier by meshed gears group, power is by going
Carrier input is exported by gear ring；
When buncher and planetary gear ring are driven with planet carrier by meshed gears group, power is by gear ring
Input is exported by sun gear；
When buncher and planetary gear ring are driven with planet carrier by meshed gears group, power is by planet
Frame input is exported by sun gear；
This several combination is simple derivative combination of the present utility model above, and combinations thereof is equally in this practicality
In new protection domain.
Claims (9)
- A kind of 1. planet gear stepless speed changer, it is characterised in that：Described planet gear stepless speed changer includes One planetary gears, buncher（5）, described buncher（5）Input shaft pass through first gear group（11）With The sun gear of first planetary gears（1）Connection, described buncher（5）Output shaft pass through second gear group（12） With the gear ring of the first planetary gears（2）Connection, the sun gear that power passes through the first planetary gears（1）With by stepless change Fast device（5）The gear ring of first planetary gears of driving（2）Pass to the planet carrier of the first planetary gears（3）.
- 2. planet gear stepless speed changer according to claim 1, it is characterised in that：Described planetary gear stepless becomes The second planetary gears, the sun gear of the first planetary gears are additionally provided with speed variator（1）By the 3rd gear train with The sun gear connection of second planetary gears, the planet carrier of the first planetary gears（3）Pass through the 4th gear train and second The gear ring connection of planetary gears, power is by the second planetary sun gear input by the second planetary planet carrier Output.
- 3. planet gear stepless speed changer according to claim 1, it is characterised in that：Described buncher（5） Speed than be 1 when, gear ring（2）With sun gear（1）Rotating ratio scope is between 0.1 to 10.
- 4. planet gear stepless speed changer according to claim 1, it is characterised in that：Described buncher（5） For the buncher of hydraulic power, such as fluid coupling, fluid torque-converter, can modify tone flow pump buncher etc..
- 5. planet gear stepless speed changer according to claim 4, it is characterised in that：Described buncher（5） For fluid coupling or fluid torque-converter when, planet carrier（3）And sun gear（1）When rotating ratio is close to 1, the pump impeller of buncher With secondary speed than scope between 1.1-10.
- 6. planet gear stepless speed changer according to claim 1, it is characterised in that：In described buncher （5）Input shaft on be provided with prime clutch（51）, in described buncher（5）Output shaft on be provided with it is secondary from Clutch（52）, in described gear ring（2）On be provided with ring gearwheel clutch（21）, in described planet carrier（3）On be provided with planet Frame clutch（31）；Work as ring gearwheel clutch（21）With reference to when, gear ring（2）It is fixed, prime clutch（51）And secondary clutch （52）Separation, power is by sun gear（1）Input, by planet carrier（3）Exported after deceleration, gearratio is fixed value；When planet carrier from Clutch（31）With reference to when, planet carrier（3）And gear ring（2）With reference to locking or planet carrier（3）And sun gear（1）It is preceding with reference to locking Level clutch（51）And secondary clutch（52）Separation, power is by sun gear（1）Input, by planet carrier（3）Equispeed output, transmission Than for 1.
- 7. planet gear stepless speed changer according to claim 1, it is characterised in that：Described buncher（5） For mechanically operated buncher, the buncher is friction type stepless speed changer, conical ring formula buncher, toothed chain Formula buncher, variable v-belt drive or V-type variable v-belt drive.
- 8. planet gear stepless speed changer according to claim 1, it is characterised in that：Described buncher（5） For electrically-driven buncher, electrically-driven motor is variable speed DC motor or variable speed AC motor.
- 9. according to the planet gear stepless speed changer described in any one claim in Claims 1-4, its feature exists In：In described gear ring（2）On be provided with motor, motor driven gear ring（2）And to planet carrier（3）Apply active force or in gear ring （2）Recovery kinetic energy is used as generator and store electric energy during passive matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720931265.2U CN207049265U (en) | 2017-07-28 | 2017-07-28 | Planet gear stepless speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720931265.2U CN207049265U (en) | 2017-07-28 | 2017-07-28 | Planet gear stepless speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207049265U true CN207049265U (en) | 2018-02-27 |
Family
ID=61496794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720931265.2U Expired - Fee Related CN207049265U (en) | 2017-07-28 | 2017-07-28 | Planet gear stepless speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207049265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591385A (en) * | 2018-07-11 | 2018-09-28 | 黄文化 | A kind of power generating type stageless gear variator |
-
2017
- 2017-07-28 CN CN201720931265.2U patent/CN207049265U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591385A (en) * | 2018-07-11 | 2018-09-28 | 黄文化 | A kind of power generating type stageless gear variator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180227 Termination date: 20180728 |