CN201963834U - High-power transmission continuously variable transmission (CVT) - Google Patents
High-power transmission continuously variable transmission (CVT) Download PDFInfo
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- CN201963834U CN201963834U CN2011200527168U CN201120052716U CN201963834U CN 201963834 U CN201963834 U CN 201963834U CN 2011200527168 U CN2011200527168 U CN 2011200527168U CN 201120052716 U CN201120052716 U CN 201120052716U CN 201963834 U CN201963834 U CN 201963834U
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Abstract
The utility model provides a high-power transmission continuously variable transmission (CVT) which comprises a continuously variable transmission shell, wherein the continuously variable transmission shell is internally provided with a power input driving shaft connected with an engine and a driven shaft, two continuously variable transmission driving belt wheels are arranged on the power input driving shaft, the driven shaft is divided into two sections, a continuously variable transmission driven belt wheel is arranged on each section of the driven shaft, the continuously variable transmission driven belt wheels arranged on two sections of the driven shafts respectively correspond to the two continuously variable transmission driving belt wheels arranged on the power input driving shaft, a differential mechanism is arranged between two sections of the driven shafts, two sections of the driven shafts are connected with two semi-shaft gears of the differential mechanism, and a power output of the differential mechanism is connected with a next power transmission device. The high-power transmission continuously variable transmission has the beneficial effects that the advantages of the conventional CVT speed change system are retained, the transmission power is nearly doubled, and the defect that the conventional CVT can not transit the lager power is overcome.
Description
Technical field
The utility model relates to automobile gearbox, relates in particular to a kind of high power transmission stepless speed variator, is two stepless change wheels are combined, and has improved the delivering power near a times.
Background technique
At present, known stepless speed variator (CVT) critical piece is two belt wheels and steel band, and steel band is enclosed within on two belt wheels.Each belt wheel all is made up of two relative conical wheels, groove in the middle of these two conical wheel walls forms a V-arrangement, wherein conical wheel is handled by hydraulic control on one side, can look different engine speed carries out separating and close action with the another side conical wheel, v-depression also broadens thereupon or narrows down steel band is raise or reduction, thereby changes the diameter that steel band contacts with belt wheel.Two belt wheels are oppositely regulated, be that one of them belt wheel v-depression is when broadening gradually, another belt wheel v-depression will narrow down gradually, like this, when automobile travelled at a slow speed, the v-depression width that can make driving pulley was greater than passive belt wheel v-depression, and the steel band radius of a circle of driving pulley is less than the steel band radius of a circle of passive belt wheel, be roundlet band great circle, therefore can transfer larger torque.When automobile transfers high speed to gradually, one cincture wall of driving pulley comes closer, the v-depression width diminishes and forces steel band to rise, until the highest top, and a cincture wall of passive belt wheel is just opposite, outwards moves to widen the v-depression width and force steel band to be fallen, and promptly the radius of a circle of driving pulley steel band is greater than the radius of a circle of passive belt wheel steel band, become the great circle belt roundlet, therefore can guarantee the rate request when automobile high-speed is spent.The stepless speed variator of this kind structure (CVT): simple in structure, volume is little, and part is few, and the cost after the production in enormous quantities will be lower than the cost of current common automatic transmission; Its work ratio coverage is wide, and easy and motor forms ideal matching, thereby improves combustion process, and then reduces oil consumption and discharging; Have higher transmission efficiency, power loss is few, the Economy height.But this kind structure C VT technology also has its weakness, with the output power of motor can not be supporting, the power that is motor can not transmit out by complete quilt, can't bear bigger load, often transmit the heavy load Steel Belt and damage or the like easily, these technical difficulties make it be applied in mostly on little discharge capacity, the lower powered automobile all the time.
Summary of the invention
The purpose of this utility model is to have proposed a kind of high power transmission stepless speed variator, and this speed changer overcomes existing C VT stepless speed variator can not transmit more powerful deficiency.
To achieve these goals, the technical solution of the utility model is: a kind of high power transmission stepless speed variator, a stepless change tank shell is arranged, power input main shaft and a driven shaft of being connected with motor are arranged in gear box casing, on power input main shaft, the stepless change driving pulley is installed, the stepless change driven pulley is installed on driven shaft, and driving belt is sleeved on stepless change driving pulley and the stepless change driven pulley; Wherein, the stepless change driving pulley of installing on power input main shaft has two, driven shaft is divided into two sections, the stepless change driven pulley is installed respectively on every section driven shaft, two stepless change driving pulleys installing on the corresponding respectively power input of the stepless change driven pulley of installing on the two sections driven shafts main shaft, between two sections driven shafts differential mechanism is installed, two sections driven shafts are connected on two differential gears of differential mechanism, and the output of the power of differential mechanism is connected to next power transmitting deice.
Described driven shaft is driven axle sleeve, and two sections driven shaft covers are enclosed within on the pto, and pto is connected with the planetary pinion axle bed of differential mechanism, and pto connects next power transmitting deice.
Described driving belt is a kind of in steel band or the steel chain.
Described stepless change driving pulley and stepless change driven pulley are CTV stepless change wheels.
The beneficial effects of the utility model are, improve the delivering power near a times when keeping CVT speed variator system advantage, have overcome the CVT stepless speed variator and can not transmit more powerful deficiency.
Below in conjunction with drawings and Examples the utility model being done one describes in detail.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the another kind of structural representation of the utility model.
Embodiment
A kind of high power transmission stepless speed variator embodiment, referring to Fig. 1, described stepless speed variator has a stepless change tank shell 1, power input main shaft 2 and a driven shaft 3 of being connected with motor are arranged in gear box casing, on power input main shaft, stepless change driving pulley 4 is installed, stepless change driven pulley 5 is installed on driven shaft, and driving belt 6 is sleeved on stepless change driving pulley and the stepless change driven pulley; Wherein, on power input main shaft, a stepless change driving pulley 7 is installed again, on power input main shaft, form two stepless change driving pulleys, it is respectively first section 3-1 and second section 3-2 that driven shaft is divided into two sections, the stepless change driven pulley is installed respectively on every section driven shaft, promptly on second section driven shaft stepless change driven pulley 8 is installed, two stepless change driving pulleys installing on the corresponding respectively power input of stepless change driven pulley on the two sections driven shafts main shaft, between two sections driven shafts differential mechanism 9 is installed, two sections driven shafts are connected on two differential gears of differential mechanism, and the gear ring 9-1 of differential mechanism is connected to next power transmitting deice 10 as the power output gear of differential mechanism.
Described driving belt is a kind of in steel band or the steel chain.Described stepless change driving pulley and stepless change driven pulley are CTV stepless change wheels.
CTV stepless change wheel is all to be made up of two relative fan-shaped pulleys, and the CTV stepless change is taken turns and comprised that hydraulic control system all is the prior art of practical application, so present embodiment omits in the drawings and is not described in detail; These two relative fan-shaped pulley walls form the groove of a V-arrangement, the CVT stepless speed variator is different with the multiple tooth wheels transmission that traditional gearbox adopts, it does not adopt gear graduation, but adopt two fan-shaped pulleys that connected by the high-tensile steel band is CTV stepless change wheel, thereby, realize seamless acceleration by the successional change speed ratio of the change diameter of pulley of stepless property.Shortcomings such as pause and transition in rhythm or melody sense that CVT has overcome traditional gearbox when quickening and energy loss are big are controlled more smooth and easy and environmental protection and energy saving.When automobile travels at a slow speed, can make two driving pulleys and recess width greater than two driven pulleys and groove, the radius of a circle of the steel band at two driving pulley places is less than the radius of a circle of the steel band of two driven pulley positions, i.e. roundlet band great circle therefore can transfer larger torque.When automobile transfers high speed to gradually, one cincture wall of two driving pulleys comes closer, the position rise that recess width diminishes and forces steel band, until the highest top, and the wheel wall of two driven pulleys opposite direction just, outwards move and widen recess width and force the position of steel band to be fallen, promptly the radius of a circle of the steel band of two driving pulley positions is greater than the radius of a circle of the steel band of two driven pulley positions, become the great circle belt roundlet, therefore can guarantee the rate request when automobile high-speed is spent, the shared driving shaft of two driving pulleys of two stepless gear systems, two driven pulley usefulness driven shaft separately, the differential mechanism two ends are connected with two driven shafts, its objective is the transmission torsion and the rotating speed that reduce by two stepless speed variator systems for the asynchronous generation opposition of the rotating speed that prevents two stepless speed variator systems, there has been the differential mechanism just can be with all gear 9-1 output from the differential mechanism of the rotating speed of two stepless speed variator systems, differential mechanism is a kind of technique known, differential mechanism can combine the delivering power of two CVT stepless speed variator systems by the gear ring on the differential mechanism and pass to transmission of power wheel 10, transmission of power wheel is passed on the power output differential 12 gear 13 again by reduction gear 11, power output differential 12 is passed to driving wheel to power at last, so just the moment of torsion of original single CVT variable ratio drive system can be improved near one times.
Another kind of high power transmission stepless speed variator embodiment, referring to Fig. 2 and embodiment 1, embodiment 1 stepless speed variator structure takes up room bigger, take up room in order to reduce, driven shaft described in the present embodiment is driven axle sleeve, two sections driven shaft covers are enclosed within on the pto 14, the planetary pinion axle bed of differential mechanism is as the power output of differential mechanism, the planetary pinion axle bed of differential mechanism is connected with pto, pto connects next power transmitting deice, next transfer unit can be a gear, also can be transmission shaft.This structure is suitable for indulging puts motor, and power transmitting deice can be the differential mechanism power input wheel of front-wheel drive, can be the rear-guard transmission shaft, also can be the coupling shaft of the power input shaft of four-wheel driven car transfer case.
Claims (4)
1. one kind high power transmission stepless speed variator, a stepless change tank shell is arranged, power input main shaft and a driven shaft of being connected with motor are arranged in gear box casing, on power input main shaft, the stepless change driving pulley is installed, the stepless change driven pulley is installed on driven shaft, and driving belt is sleeved on stepless change driving pulley and the stepless change driven pulley; It is characterized in that, the stepless change driving pulley of installing on power input main shaft has two, driven shaft is divided into two sections, the stepless change driven pulley is installed respectively on every section driven shaft, two stepless change driving pulleys installing on the corresponding respectively power input of the stepless change driven pulley of installing on the two sections driven shafts main shaft, between two sections driven shafts differential mechanism is installed, two sections driven shafts are connected on two differential gears of differential mechanism, and the output of the power of differential mechanism is connected to next power transmitting deice.
2. a kind of high power transmission stepless speed variator according to claim 1, it is characterized in that, described driven shaft is driven axle sleeve, two sections driven shaft covers are enclosed within on the pto, pto is connected with the planetary pinion axle bed of differential mechanism, and pto connects next power transmitting deice.
3. a kind of high power transmission stepless speed variator according to claim 1 is characterized in that, described driving belt is a kind of in steel band or the steel chain.
4. a kind of high power transmission stepless speed variator according to claim 1 is characterized in that, described stepless change driving wheel and stepless change follower are CTV stepless change wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200527168U CN201963834U (en) | 2011-03-02 | 2011-03-02 | High-power transmission continuously variable transmission (CVT) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200527168U CN201963834U (en) | 2011-03-02 | 2011-03-02 | High-power transmission continuously variable transmission (CVT) |
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| Publication Number | Publication Date |
|---|---|
| CN201963834U true CN201963834U (en) | 2011-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200527168U Expired - Fee Related CN201963834U (en) | 2011-03-02 | 2011-03-02 | High-power transmission continuously variable transmission (CVT) |
Country Status (1)
| Country | Link |
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| CN (1) | CN201963834U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562993A (en) * | 2011-12-31 | 2012-07-11 | 刘镇江 | Shunting type CVT (Continuously Variable Transmission) mechanism and torque transferring method thereof |
| CN105221692A (en) * | 2015-11-09 | 2016-01-06 | 西南大学 | A kind of without clutch stepless speed changer |
| CN108317230A (en) * | 2018-02-06 | 2018-07-24 | 董博 | With multichain CVT speed changers and the transmission ratio adjusting of differential mechanism and detection method |
| CN111746268A (en) * | 2020-06-29 | 2020-10-09 | 奇瑞汽车股份有限公司 | Electric automobile driving system |
-
2011
- 2011-03-02 CN CN2011200527168U patent/CN201963834U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562993A (en) * | 2011-12-31 | 2012-07-11 | 刘镇江 | Shunting type CVT (Continuously Variable Transmission) mechanism and torque transferring method thereof |
| CN102562993B (en) * | 2011-12-31 | 2014-06-11 | 刘镇江 | Shunting type CVT (Continuously Variable Transmission) mechanism and torque transferring method thereof |
| CN105221692A (en) * | 2015-11-09 | 2016-01-06 | 西南大学 | A kind of without clutch stepless speed changer |
| CN105221692B (en) * | 2015-11-09 | 2019-02-12 | 西南大学 | A kind of no clutch stepless speed changer |
| CN108317230A (en) * | 2018-02-06 | 2018-07-24 | 董博 | With multichain CVT speed changers and the transmission ratio adjusting of differential mechanism and detection method |
| WO2019153451A1 (en) * | 2018-02-06 | 2019-08-15 | 董博 | Multi-chain cvt using differentials, and transmission ratio adjusting and detecting method |
| CN111746268A (en) * | 2020-06-29 | 2020-10-09 | 奇瑞汽车股份有限公司 | Electric automobile driving system |
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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: 20110907 Termination date: 20130302 |