CN102146989A - Sectionally continuous variable-speed drive system device - Google Patents
Sectionally continuous variable-speed drive system device Download PDFInfo
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- CN102146989A CN102146989A CN2010105054550A CN201010505455A CN102146989A CN 102146989 A CN102146989 A CN 102146989A CN 2010105054550 A CN2010105054550 A CN 2010105054550A CN 201010505455 A CN201010505455 A CN 201010505455A CN 102146989 A CN102146989 A CN 102146989A
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Abstract
The invention proposes using sectional continuous stepless speed-change transmission system device of the non-circular gear drive in conjunction with column gear transmission,It is made of the non-circular gear drive part for realizing variable transmission and the widened column gear transmission part for transmission ratio; The composition of non-circular gear drive part: the first non-circular gear is engaged with the second non-circular gear on output shaft on input shaft,It is equipped with freewheel clutch between grade on phase adjusted axis between the third non-circular gear and grade of empty set between phase adjusted axis,Third non-circular gear is engaged with another second non-circular gear on output shaft; Input shaft,Be respectively fixedly connected on output shaft active roller gear,Passive roller gear,Synchronizer is equipped between input shaft and output shaft; Variable speed be change non-circular gear fixed shaft gear train between grade between phase angle
Value realize; Non-circular gear drive part is connected by power with column gear transmission part by synchronizer realization, realizes variable speed.
Description
Technical field
The present invention relates to a kind of infinitely variable speed transmission.
Background technique
Though present stepless speed variator has reached the stage of ripeness, the particularly successful utilization of metal band type stepless speed variator, but, metal band type stepless speed variator belongs to friction driving, bearing capacity is limited, transmitting maximum input torque is 300Nm, and the transmission efficiency level has only 84.6% (counting the power loss of oil pump).For a long time, people are carrying out transmitting research work high-power, that keep the mechanical continuously-variable transmission of high efficiency, long-life always.So people have proposed the gear type stepless speed variator.The noncircular gear transmission has that non-its velocity ratio is a function, belongs to the conjugation engagement driving at the uniform velocity than the characteristic of transmission, utilizes the drive characteristic of noncircular gear can realize Variable Speed Technology, and the maximum input that improves transmission device is changeed apart from having very big potentiality.But noncircular gear is realized the stepless change transmission, and velocity ratio is unsuitable excessive, otherwise can cause the radius vector variation of noncircular gear excessive, influences the transmission effect of noncircular gear.Therefore, noncircular gear is realized the stepless speed changes devices of big speed ratio, just can not simple whole employing noncircular gear transmission.
Summary of the invention
The present invention utilizes combining of noncircular gear transmission and column gear transmission, proposes a kind of sectional continuous stepless variable ratio drive system device, realizes the stepless change transmission.
Technological scheme of the present invention is as follows: sectional continuous stepless variable ratio drive system device, and by noncircular gear drive part and column gear transmission part, the noncircular gear drive part is used to realize the stepless change transmission, column gear transmission partly is used for the expansion of velocity ratio;
The formation of noncircular gear drive part: comprise input shaft, output shaft, inter-stage phase adjusted axle, be fixedly connected with 3 first noncircular gears that technical parameter is identical on the input shaft, be set with 6 second noncircular gears that technical parameter is identical on the output shaft, 3 second noncircular gear engagements on first noncircular gear and the output shaft, be set with 3 the 3rd noncircular gears that technical parameter is identical on the inter-stage phase adjusted axle, be provided with free wheel device between the 3rd noncircular gear and the inter-stage phase adjusted axle, 3 second noncircular gear engagements of all the other on the 3rd noncircular gear and the output shaft; The axle head of input shaft is fixedly connected with initiatively cylindrical gears, and the axle head of output shaft is fixedly connected with passive cylindrical gears, is provided with synchronizer between input shaft and the output shaft; Stepless change is to change inter-stage phase angle between the noncircular gear fixed shaft gear train by inter-stage phase adjusted axle along the rotation of output shaft
Value realize and inter-stage phase angle
Change realize by worm and gear;
The formation of column gear transmission part: comprise input shaft, output shaft, combine by multistage column gear transmission realization power between input shaft and the output shaft, be provided with synchronizer between cylindrical gears on the input shaft and the input shaft; The output shaft of noncircular gear drive part realizes that by synchronizer power is connected with the input shaft of column gear transmission part;
The transmission ratio function of intermeshing noncircular gear transmission is:
Beneficial effect: the present invention realizes stepless change by the combination of noncircular gear drive part and column gear transmission part, during use, directly is contained between main clutch and the manual transmission, makes the noncircular gear transmission apply to become a reality in the automative stepless speed-variation.The present invention has bigger potentiality on bearing capacity, be applicable to the bigger mechanical transmission of load, high capacity waggon etc.
Description of drawings
Fig. 1 is the transmission ratio curve figure in the single cycle of noncircular gear.
Fig. 2 is the transmission ratio curve figure in two cycles of noncircular gear.
Fig. 3 is a two-stage noncircular gear transmission schematic representation.
Fig. 4 is a two-stage noncircular gear velocity ratio line chart.
Fig. 5 is the flank profil figure of noncircular gear 1.
Fig. 6 is the flank profil figure of noncircular gear 2.
Fig. 7 is the flank profil engagement figure of noncircular gear 1 and noncircular gear 2.
Fig. 8 is that schematic representation is arranged in the transmission of two-stage noncircular gear.
Fig. 9 is the structural representation of sectional continuous stepless variable speed drive of the present invention.
Figure 10 is a sectional continuous stepless variable speed drive power transmission flow chart.
Embodiment
The present invention is made up of two-part: noncircular gear drive part and column gear transmission part, and the noncircular gear drive part is used to realize the stepless change drive part, column gear transmission partly is used for the expansion of velocity ratio.
1.1 the noncircular gear drive part is realized the stepless change transmission
Make noncircular gear be applied to stepless change transmission aspect, noncircular gear must can be done continuous rotation motion, and its pitch curve also must seal, and has continuity and flatness during noncircular gear transmission simultaneously.Can make the transmission ratio function of noncircular gear be:
K, α are permanent number of generation;
Formula (1) can be led continuously at the b point, wherein
Be multinomial or trigonometric function.
The present invention is an example with the trigonometric function, draws one and has flatness and successional noncircular gear transmission ratio function and be (as Fig. 1,2):
Wherein
Corner for noncircular gear 1.
According to the mathematical model of noncircular gear driving mechanism realization stepless change transmission principle, the transmission ratio function that can obtain intermeshing noncircular gear transmission is:
Wherein
Be the inter-stage phase angle;
Corner for noncircular gear 1.
From formula (3) as can be seen, in the process of noncircular gear transmission, the transmission ratio function of two-stage noncircular gear transmission become about
Function, when
When occurring, will obtain different two-stage noncircular gear transmission ratio function curves with different values, the position of each noncircular gear relation as shown in Figure 3, Fig. 4 be
Noncircular gear two-stage transmission ratio curve when getting different values.
If with modulus m
1=3mm, number of teeth z
1=30 design noncircular gear for example.The centre distance of the noncircular gear transmission of this moment is a=92.1288mm, the pitch curve of noncircular gear 1:
Wherein a is a centre distance;
r
1Radius vector for noncircular gear 1;
Then the pitch curve of noncircular gear 2 is:
Wherein a is a centre distance;
r
1Radius vector for noncircular gear 1;
Corner for noncircular gear 2.
Fig. 5 is the flank profil figure of noncircular gear 1.Fig. 6 is the flank profil figure of noncircular gear 2.Fig. 7 is the flank profil engagement figure of noncircular gear 1 and noncircular gear 2.
Because noncircular gear has the characteristic of variable ratio, Variable Speed Technology then is the lasting and constant velocity ratio of requirement.From transmission ratio curve Fig. 4 of two-stage noncircular gear transmission as can be seen in the noncircular gear circular flow, when the phase place angle
One timing its velocity ratio in 0～2 π is not to keep invariable, its velocity ratio keeps the constant part of only occupying, other parts then change, and the part that is used for work that constant part of its velocity ratio exactly, therefore, the noncircular gear transmission application on Variable Speed Technology, one group of noncircular gear drive train having only Fig. 4 be can not realize infinite variable speed.
Finish the stepless change transmission, just must need the noncircular gear train of many groups as Fig. 4.Thereby the relay transmission by many groups noncircular gear reaches the purpose that realizes the stepless change transmission.This just requires definite group number as Fig. 4 noncircular gear train.The design adopts three groups as Fig. 4 noncircular gear fixed shaft gear train.
In order to make
Convenient the adjusting, the design adopts the distribution form of two-stage noncircular gear transmission shown in Figure 8.
Because noncircular gear 1,2 and 3,4 is in transmission process, their centre distance remains unchanged, and can change by the rotation of noncircular gear 3 around noncircular gear 4
Value, thereby reach infinite variable speed purpose.(1) for the inter-stage phase place angle of noncircular gear fixed shaft gear train is among Fig. 8
Situation, (2) then are that its inter-stage phase angle is to the maximum
Situation, and the variator ratio range of its transmission is 1 to 0.3776.As can be seen from the figure, when the invariant position of noncircular gear 1,2,4, noncircular gear 3 is when (1) changes to position (2) from the position, and the inter-stage phase angle between noncircular gear changes to 120 °, the angular velocity omega of noncircular gear 3 from 0 °
3Just from ω
2Change to 2.6481 * ω
2
1.2 sectional continuous stepless variable speed drive:
As shown in Figure 9, the sectional continuous stepless variable speed drive is made up of noncircular gear transmission part B and column gear transmission portion C, the noncircular gear transmission part B adopts the mode of noncircular gear fixed shaft gear train abreast-type, label 5,6,7,8,9,10,11,12,13,14,15,16 expression noncircular gears, label 17,18 expression cylindrical gearss, label 19,20,21 expression free wheel devicees, label 22 is worm and gears, label V is an inter-stage phase adjusted axle, and label 23 is supporting frames.
Its transmission process is: power is imported on the noncircular gear 5,6,7 that is delivered on the input shaft O from axle I, be delivered to then on the noncircular gear 8,10,12 that is engaged with, engagement and free wheel device 19,20,21 through noncircular gear 9,11,13 and noncircular gear 14,15,16 is delivered to inter-stage phase adjusted axle V again, thereby power is input in the cylindrical gears gearbox, power is exported from output shaft by the engagement driving of cylindrical gears 13,14.And its Variable Speed Technology also is to change inter-stage phase angle between the noncircular gear fixed shaft gear train by inter-stage phase adjusted axle V along the rotation of output shaft
Value realize.And the inter-stage phase angle
Change realize by worm and gear 22.
The power transmission route is as follows: power is from axle I, synchronizer 1 left side engages, through cylindrical gears with power transmission to input shaft 0, pass on the V through noncircular gear drive part and free wheel device 19,20,21, by a pair of cylindrical gears 17,18 transmission of power is arrived an axle II, through the column gear transmission part power is exported from axle IV again.Wherein, synchronizer 1 right joint can say that power is directly delivered on the II, exports power through the cylindrical gears portion C from axle IV.
Column gear transmission portion C: be set with cylindrical gears 27,29,31,33 on the axle IV, be fixed with cylindrical gears 28,30,32,34 on the jack shaft III, cylindrical gears 27 and cylindrical gears 28 engagements, cylindrical gears 29 and cylindrical gears 30 engagements, cylindrical gears 31 and cylindrical gears 32 engagements, cylindrical gears 33 and cylindrical gears 34 engagements, cylindrical gears 34 engagements also with reverse gear shaft R on the cylindrical gears engagement.Side at cylindrical gears 27 is provided with synchronizer 24, is provided with synchronizer 25 between cylindrical gears 29 and cylindrical gears 31, is provided with synchronizer 26 at the side of cylindrical gears 33.
Wherein in the design, the slewing range of noncircular gear stepless change drive part is 1～2.In the power transmission process, if input speed n
I=2000r/min segmentation transmission as follows:
Synchronizer A left side combination, synchronizer 26 engages, and output shaft IV rotating speed is 256.35～512.70r/min;
Synchronizer A left side combination, synchronizer 25 right joints, output shaft IV rotating speed is 512.2～1024.4r/min;
Synchronizer A left side combination, synchronizer 25 left sides engage, and output shaft IV rotating speed is 1022.71～2045.4r/min;
The right combination of synchronizer A, synchronizer 24 left sides engage, and output shaft IV rotating speed is 2000r/min.
In connecing a transmission process, being divided into is 4 stages, and the rotating speed of output shaft IV is a continually varying, and the excursion of output shaft IV is between 256.35～2000r/min.
As shown in Figure 9, the engagement of the noncircular gear of noncircular gear drive part is 3 groups.In fact, noncircular gear engagement group number can be adjusted between 6 groups at 2 groups, and along with the increase of organizing number, the output of noncircular gear transmission is just steady more.
Sectional continuous stepless variable speed drive power transmission flow process as shown in figure 10, motor connects main clutch, main clutch is connected with the bi-directional synchronization device again, and the bi-directional synchronization device is connected with the sectional continuous stepless variable speed drive, is connected with speed changer MT (manually) simultaneously.The sectional continuous stepless variable speed drive is connected with speed changer MT (manually) by free wheel device.
The present invention adopts engagement driving to realize the stepless change transmission, has bigger potentiality on bearing capacity, is applicable to the bigger mechanical transmission of load, high capacity waggon etc.
Claims (1)
1. sectional continuous stepless variable ratio drive system device, it is characterized in that: by noncircular gear drive part and column gear transmission part, the noncircular gear drive part is used to realize the stepless change transmission, and column gear transmission partly is used for the expansion of velocity ratio;
The formation of noncircular gear drive part: comprise input shaft, output shaft, inter-stage phase adjusted axle, be fixedly connected with 3 first noncircular gears that technical parameter is identical on the input shaft, be set with 6 second noncircular gears that technical parameter is identical on the output shaft, 3 second noncircular gear engagements on first noncircular gear and the output shaft, be set with 3 the 3rd noncircular gears that technical parameter is identical on the inter-stage phase adjusted axle, be provided with free wheel device between the 3rd noncircular gear and the inter-stage phase adjusted axle, 3 second noncircular gear engagements of all the other on the 3rd noncircular gear and the output shaft; The axle head of input shaft is fixedly connected with initiatively cylindrical gears, and the axle head of output shaft is fixedly connected with passive cylindrical gears, is provided with synchronizer between input shaft and the output shaft; Stepless change is to change inter-stage phase angle between the noncircular gear fixed shaft gear train by inter-stage phase adjusted axle (V) along the rotation of output shaft
Value realize and inter-stage phase angle
Change realize by worm and gear;
The formation of column gear transmission part: comprise input shaft, output shaft, combine by multistage column gear transmission realization power between input shaft and the output shaft, be provided with synchronizer between cylindrical gears on the input shaft and the input shaft;
The output shaft of noncircular gear drive part realizes that by synchronizer power is connected with the input shaft of column gear transmission part; The transmission ratio function of described intermeshing noncircular gear is:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010505455.0A CN102146989B (en) | 2010-09-30 | 2010-09-30 | Sectional continuous stepless speed-change transmission system device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010505455.0A CN102146989B (en) | 2010-09-30 | 2010-09-30 | Sectional continuous stepless speed-change transmission system device |
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| Publication Number | Publication Date |
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| CN102146989A true CN102146989A (en) | 2011-08-10 |
| CN102146989B CN102146989B (en) | 2016-02-10 |
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Cited By (5)
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| CN108061110A (en) * | 2018-01-03 | 2018-05-22 | 湖北汽车工业学院 | Combined type rotary speed threshold value switches the freewheel clutch of power direction |
| CN108167411A (en) * | 2018-01-09 | 2018-06-15 | 上海缘雪机械科技有限公司 | One kind reads system based on gear-driven curve |
| CN108488345A (en) * | 2018-05-11 | 2018-09-04 | 中国人民解放军陆军军事交通学院 | A kind of novel three branches non-circular gear infinitely variable speed transmission |
| CN111467811A (en) * | 2019-01-23 | 2020-07-31 | 智高实业股份有限公司 | Deformation gear and deformation gear transmission set using same |
| CN115366252A (en) * | 2022-08-29 | 2022-11-22 | 湘潭大学 | Coaxial non-uniform-speed concrete stirring device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061110A (en) * | 2018-01-03 | 2018-05-22 | 湖北汽车工业学院 | Combined type rotary speed threshold value switches the freewheel clutch of power direction |
| CN108061110B (en) * | 2018-01-03 | 2023-10-03 | 湖北汽车工业学院 | Overrun clutch with power direction switching function through combined rotating speed threshold |
| CN108167411A (en) * | 2018-01-09 | 2018-06-15 | 上海缘雪机械科技有限公司 | One kind reads system based on gear-driven curve |
| CN108167411B (en) * | 2018-01-09 | 2023-12-08 | 上海缘雪机械科技有限公司 | Curve reading system based on gear transmission |
| CN108488345A (en) * | 2018-05-11 | 2018-09-04 | 中国人民解放军陆军军事交通学院 | A kind of novel three branches non-circular gear infinitely variable speed transmission |
| CN108488345B (en) * | 2018-05-11 | 2024-01-26 | 中国人民解放军陆军军事交通学院 | Three-branch non-circular gear stepless speed change transmission device |
| CN111467811A (en) * | 2019-01-23 | 2020-07-31 | 智高实业股份有限公司 | Deformation gear and deformation gear transmission set using same |
| CN115366252A (en) * | 2022-08-29 | 2022-11-22 | 湘潭大学 | Coaxial non-uniform-speed concrete stirring device |
| CN115366252B (en) * | 2022-08-29 | 2023-07-25 | 湘潭大学 | Coaxial non-uniform concrete stirring device |
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| CN102146989B (en) | 2016-02-10 |
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