CN103256355B - Double-planet-row converging type multi-clutch transmission - Google Patents

Double-planet-row converging type multi-clutch transmission Download PDF

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Publication number
CN103256355B
CN103256355B CN201310155461.1A CN201310155461A CN103256355B CN 103256355 B CN103256355 B CN 103256355B CN 201310155461 A CN201310155461 A CN 201310155461A CN 103256355 B CN103256355 B CN 103256355B
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China
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clutch
gear
input shaft
output shaft
shaft
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CN103256355A (en
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徐立友
王笛
时辉
王粉粉
刘卫强
张羽
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Henan University of Science and Technology
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Henan University of Science and Technology
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Abstract

The invention relates to a double-planet row converging type multi-clutch transmission which can meet multi-gear needs. The double-planet row converging type multi-clutch transmission comprises a main input shaft, a main output shaft, a first multi-plate clutch, a second multi-plate clutch and a double-planet row converging mechanism. The first multi-plate clutch and the second multi-plate clutch respectively comprise an input end, more than two clutch output shafts and a clutch mechanism. A first planet row comprises a first sun wheel input shaft and a first planet carrier input shaft, a second planet row comprises a second gear ring input shaft, a second planet carrier is in coaxial transmission connection with a first gear ring, and a second sun wheel is in coaxial transmission connection with a main shaft output shaft. More than two gear selecting and shifting gear sets are arranged between each output shaft of the first multi-plate clutch and the first sun wheel input shaft, more than two gear selecting and shifting gear sets are arranged between one clutch output shaft in the second multi-plate clutch and the first planet carrier input shaft, and more than two gear selecting and shifting gear sets are arranged between the other clutch output shaft in the second multi-plate clutch and a second gear ring input shaft. Each gear selecting and shifting gear set comprises free gears, and a synchronizer is arranged between two adjacent free gears arranged in pairs.

Description

Double planet wheel rows of mixing convergent current type multi-clutch speed changer
Technical field
The present invention relates to double planet wheel rows of mixing convergent current type multi-clutch speed changer.
Background technique
Rapidly, particularly double-clutch automatic gearbox, its technology comparative maturity and solve the problem of interruption of power transmission preferably due to it, application is more and more recently for the development of current transmission technology.Such as application number is 20082009555.6, notification number is a kind of double clutch five gear automatic speed variator disclosed in the Chinese patent of CN201265630Y, the double clutch, jack shaft and the main output shaft that comprise the primary input axle for connecting power source, are connected with primary input shaft drive, double clutch comprises the input end, odd number shelves transmission shaft, even number shelves transmission shaft and the clutch mechanism for selecting input end to be connected with odd number shelves transmission shaft or even number shelves transmission shaft driven that are connected with primary input axle coaxial transmission.Described odd number shelves transmission shaft and be equipped with corresponding odd, even several grades of gear trains and corresponding odd, even several grades of synchronizers between even number shelves transmission shaft and the corresponding section of jack shaft, odd, even several grades of gear trains include the free gear that empty set on the axle corresponding to its transmitting torque rotates assembling, and a free gear in paired odd number shelves gear train or even number shelves gear train and place axle can being connected with transmitting torque during corresponding synchronizer action, another continues to keep empty set.Due to the corresponding odd number shelves of the clutch of in double clutch, the corresponding even number shelves of another clutch, when vehicle is linked into a gear, the next gear of another clutch and correspondence is in readiness by corresponding synchronizer, as long as current gear is separated just can engage next gear at once, therefore two clutch gearbox select switching speed very fast, solve the problem of interruption of power transmission preferably.
But, although dual-clutch transmission of the prior art can solve the problem of interruption of power transmission preferably, but, gear complicated at applying working condition requires more, existing dual-clutch transmission can't meet the demand for control in above-mentioned situation.
Summary of the invention
The object of this invention is to provide a kind of double planet wheel rows of mixing convergent current type multi-clutch speed changer that can meet many gears demand.
The technical solution used in the present invention is: double planet wheel rows of mixing convergent current type multi-clutch speed changer, comprises housing, for the primary input axle of moment of torsion input, the main output shaft of output torque, also comprises the first multi-clutch, the second multi-clutch and double planet wheel rows of mixing confluence mechanism, described first multi-clutch, the second multi-clutch include input end, two or more clutch output shaft and the clutch mechanism for selecting input end and one of them clutch output shaft to be in transmission connection for being connected with primary input axle coaxial transmission, described double planet wheel rows of mixing confluence mechanism comprises first planet row and the second planet row, the first sun gear is drawn together in described first planet package, the first row star-wheel, first gear ring and the first row carrier, also comprise the first sun gear input shaft to the first sun gear input torque, to the first row carrier input shaft of the first row carrier input torque, described second planet row comprises the second sun gear, second planet wheel, second gear ring and the second planet carrier, also comprise the second gear ring input shaft to the second gear ring input torque, described second planet carrier is that coaxial transmission is connected with described first gear ring, described second sun gear is connected with described main output shaft coaxial transmission, plural first sun polling change gear group for transmitting torque between the first sun gear input shaft and the first multi-clutch is equipped with between each clutch output shaft of described first multi-clutch and the corresponding section of the first sun gear input shaft, between one of them clutch output shaft of described second multi-clutch and the corresponding section of described the first row carrier input shaft, the plural the first row carrier be provided with for transmitting torque between the first row carrier input shaft and the second multi-clutch selects change gear group, another clutch output shaft in described second multi-clutch and between the corresponding section of described second gear ring input shaft plural second gear ring be provided with for transmitting torque between the second gear ring input shaft and the second multi-clutch select change gear group, empty set on the axle that includes corresponding to its transmitting torque is respectively selected in change gear group to rotate the free gear of assembling, corresponding with same clutch output shaft plurally select the free gear in change gear group to be select shift gear with relation arranged adjacent in couples one to one by what set, be provided with one of them free gear for selecting this right and place axle between two paired free gears and be connected and another free gear continues to keep the synchronizer of empty set.
The break for the first sun gear input shaft of correspondence, the first row carrier input shaft or the second gear ring input shaft being braked under corresponding control mechanism control is connected on described first sun gear input shaft, on the first row carrier input shaft, on the second gear ring input shaft.
The clutch output shaft of described first multi-clutch includes the first odd number shelves output shaft and the first even number shelves output shaft, and the clutch output shaft of described second multi-clutch includes the second odd number shelves output shaft and the second even number shelves output shaft.
Each described first sun polling change gear group, each described the first row carrier select change gear group, each described second gear ring selects change gear group to be equipped with two groups.
Described double planet wheel rows of mixing convergent current type multi-clutch speed changer is provided with for controlling described clutch mechanism by the clutch operation of setting rule action, select selector device for what control each described synchronizer action.
Described double planet wheel rows of mixing convergent current type multi-clutch speed changer comprises corresponding described primary input axle, main output shaft, each clutch output shaft, first sun gear input shaft, the speed probe of the rotating speed for detecting each axle that the first row carrier input shaft and the second gear ring input shaft are arranged, also comprise the rotary speed information for obtaining described speed probe and control described clutch operation according to rotary speed information and select the electronic control unit of selector device action, the signal output part of speed probe is connected with the signal input part of electronic control unit, electronic control unit and described clutch operation and select selector device control connection.
Described primary input axle, the first multi-clutch, the second multi-clutch are arranged in order along same straight line, described first multi-clutch is provided with the moment of torsion coupling shaft for directly being exported by the moment of torsion of primary input axle, and the input end of described second multi-clutch is in transmission connection by coupling and described moment of torsion coupling shaft.
The clutch output shaft of described first multi-clutch or the second multi-clutch comprises the load output shaft for the load output torque to correspondence.
Adopt technique scheme of the present invention, by the first multi-clutch, corresponding selects change gear group and synchronizer, kind of a number can be exported to the first sun gear input shaft and the first sun gear and select with corresponding the rotating speed that the group number of change gear group is identical, by the second odd number shelves clutch output shaft of the second multi-clutch, corresponding selects change gear group and synchronizer, kind of a number can be exported to the first row carrier input shaft and the first row carrier and select with corresponding the rotating speed that the group number of change gear group is identical, by the second even number shelves clutch output shaft of the second multi-clutch, corresponding selects change gear group and synchronizer, kind of a number can be exported to the second gear ring input shaft and the second gear ring and select with corresponding the rotating speed that the group number of change gear group is identical, if the rotating speed kind number that the first sun gear obtains is x, the rotating speed kind number that the first row carrier obtains is y, the rotating speed kind number that second gear ring obtains is z, then first planet row can export x × y kind rotating speed to the first gear ring and the second planet carrier after being confluxed by the rotating speed of the first sun gear and the first row carrier, (x × y) × z kind rotating speed can be exported to the second sun gear after the rotating speed of the second planet carrier and the second gear ring confluxes by the second planet row, namely (x × y) × z kind rotating speed can be exported to main output shaft, many gears demand can be met.
Accompanying drawing explanation
Fig. 1: the drive mechanism schematic diagram of an embodiment of double planet wheel rows of mixing convergent current type multi-clutch speed changer of the present invention.
The name that in figure, each reference character is corresponding is called: 1-motor, 2-primary input axle, 3-first even number shelves output shaft, 4-the one IV grade of driving gear, 5-the one II grade of driving gear, 6-speed probe, 7-the one III grade of driving gear, 8 first odd number shelves output shafts, 9-the one I grade of driving gear, 10-housing, 11-first even number shelves clutch, 12-first odd number shelves clutch, 13-coupling, 14-second odd number shelves clutch, 15-second even number shelves clutch, 16-the 2 I grade of driving gear, 17-second odd number shelves output shaft, 18-the 2 III grade of driving gear, 19-the 2 II grade of driving gear, 20-the 2 IV grade of driving gear, 21-second even number shelves output shaft, 22-load output shaft, 23-second odd number shelves synchronizer, 24-second even number shelves synchronizer, 25-second gear ring break, 26-second gear ring, 27-first gear ring, 28-second planet wheel, 29-second planet carrier, 30-second sun gear, 31-main output shaft, 32-first sun gear, 33-first sun gear input shaft, 34-the first row star-wheel, 35-the first row carrier, 36-selects selector device, 37-electronic control unit, 38-second gear ring input shaft, 39-the 2 IV grade of driven gear, 40-the 2 II grade of driven gear, 41-the 2 III grade of driven gear, 42-the 2 I grade of driven gear, 43-the first row carrier input shaft, 44-the first row carrier input shaft break, 45-first sun gear input shaft break, 46-clutch operation, 47-first odd number shelves synchronizer, 48-the one I grade of driven gear, 49-the one III grade of driven gear, 50-the one II grade of driven gear, 51-the one IV grade of driven gear, 52-first even number shelves synchronizer.
Embodiment
One embodiment of the present of invention as shown in Figure 1, it is the double planet wheel rows of mixing convergent current type multi-clutch speed changer used in a kind of tractor, primary input axle 2, the first sun gear input shaft 33 comprise housing 10, being in transmission connection with the output shaft of motor 1, for main output shaft 31, first multi-clutch of output torque outside speed changer, the second multi-clutch and double planet wheel rows of mixing confluence mechanism, also to comprise by the clutch operation 46 of correspondence, the control system of speed variator that selects selector device 36, speed probe 6 and electronic control unit 37 etc. to form.
Described first multi-clutch, the second multi-clutch include the input end be connected with primary input axle 2 coaxial transmission, two clutch output shafts and the clutch mechanism for selecting input end and one of them clutch output shaft to be in transmission connection.Input end, corresponding clutch output shaft and clutch mechanism are equivalent to a clutch, in the present embodiment, first multi-clutch comprises the first odd number shelves clutch 12, first even number shelves clutch 11, two corresponding clutch output shafts are the first odd number shelves output shaft 8, first even number shelves output shaft 3, and wherein the first odd number shelves output shaft 8, first even number shelves output shaft 3 is all coaxial hub form arranged; Second multi-clutch comprises the second odd number shelves clutch 14, second even number shelves clutch 15, two corresponding clutch output shafts are the second odd number shelves output shaft 17, second even number shelves output shaft 21, and wherein the second odd number shelves output shaft 17, second even number shelves output shaft 21 is all coaxial hub form arranged.Described primary input axle 2, first multi-clutch, the second multi-clutch are arranged in order along same straight line, described first multi-clutch is provided with the moment of torsion coupling shaft of the input end for the moment of torsion of primary input axle 2 being directly passed to second clutch, be in transmission connection by coupling 13 between described moment of torsion coupling shaft and the input end of the second multi-clutch, to be connected with primary input axle 2 coaxial transmission, and processing can be convenient to and to meet installation precision requirement.The load output shaft comprised for the load output torque to correspondence of the second multi-clutch, and be provided with corresponding load output clutch, load output shaft 22 is for driving the work such as corresponding farm implements when load output clutch connects.During use, first and second multi-clutch all with corresponding on-off control mechanism control connection, described clutch operation 46 and electronic control unit 37 control connection, thus optionally one of them with the first odd, even several grades of output shafts of the input end of the first multi-clutch is connected at synchronization according to the rule of setting, and optionally one of them with the second odd, even several grades of output shafts of the input end of the second multi-clutch is connected at synchronization according to the rule of setting, make the transmission of power of motor 1 to the output shaft of correspondence.The action of the first multi-clutch, the second multi-clutch is independent of each other.Above-mentioned first multi-clutch, the second multi-clutch are provided with corresponding odd number shelves clutch, odd number shelves output shaft, with corresponding even number shelves clutch, even number shelves output shaft and corresponding synchronizer, dual-clutch transmission technology as described in the background art can being utilized, solving the problem that torque transfer is interrupted when selecting gear shift preferably.Certainly, do not consider power interruption iff in order to realize many grades of outputs, each clutch output shaft can only be in transmission connection with the gear train of different drive ratios, and need not be arranged to above-mentioned odd, even form arranged apart.
Described double planet wheel rows of mixing confluence mechanism comprises the sun gear, rotation axis and the coaxial planet carrier arranged of described first sun gear input shaft 33 that are connected with described first sun gear input shaft 33 coaxial transmission, described planet carrier upper driving is connected with the planet carrier input shaft with its coaxial, described double planet wheel rows of mixing confluence mechanism also comprises the moment of torsion passing to planet wheel for the first sun gear input shaft 33 being passed to sun gear and planet carrier input shaft and to conflux the gear ring exported, and described gear ring and main output shaft 31 are in transmission connection with rotation axis.In the present embodiment, the first sun gear input shaft 33 is solid shaft, and planet carrier input shaft employing coaxial sleeve is located at the hub form on the first sun gear input shaft 33.
Described double planet wheel rows of mixing confluence mechanism comprises first planet row and the second planet row, the first sun gear 32 is drawn together in described first planet package, the first row star-wheel 34, the first row carrier 35 and the first gear ring 27, also comprise the first sun gear input shaft 33 to the first sun gear 32 input torque, to the first row carrier input shaft 43 of the first row carrier 35 input torque, described second planet row comprises the second sun gear 30, second planet wheel 28, second planet carrier 29 and the second gear ring 26, also comprise the second gear ring input shaft 38 to the second gear ring 26 input torque, described second planet carrier 29 is that coaxial transmission is connected with described first gear ring 27, described second sun gear 30 is in transmission connection with described main output shaft coaxial 31.First gear ring 27 to conflux output for the rotating speed that the rotating speed and the first row carrier input shaft 43 the first sun gear input shaft 33 being passed to the first sun gear 32 passes to the first row carrier 35, and the second sun gear 30 to conflux output for the rotating speed that the rotating speed and the second gear ring input shaft 38 first planet row being passed to the second planet carrier 29 passes to the second gear ring 26.
The first odd number shelves output shaft 8 in described first multi-clutch, two the first sun polling change gear groups for transmitting torque between the first sun gear input shaft 33 and the first multi-clutch are equipped with between first even number shelves output shaft 3 and the corresponding section of the first sun gear input shaft 33, first sun polling change gear group corresponding with the first odd number shelves output shaft 8 and the first sun gear input shaft 33 comprises two groups, be respectively the 1, the 1 of III grade of driving gear and corresponding engagement driving, III grade of driven gear, first sun polling change gear group corresponding with the first even number shelves output shaft 3 and the first sun gear input shaft 33 also comprises two groups, be respectively the 1, the 1 of IV grade of driving gear and corresponding engagement driving, IV grade of driven gear.One I, III grade of driving gear is connected on the first odd number shelves output shaft 8, one I, III grade of driven gear is that empty set is arranged on the free gear on the first sun gear input shaft 33 and selects shift gear arranged adjacent in couples by what set, is provided with another free gear for selecting one of them free gear and the first sun gear input shaft 33 to be connected between the two and continues to keep the first odd number shelves synchronizer 47 of empty set.Equally, one II, IV grade of driving gear is connected on the first even number shelves output shaft 3, one II, IV grade of driven gear is that empty set is arranged on the free gear on the first sun gear input shaft 33 and selects shift gear arranged adjacent in couples by what set, is provided with another free gear for selecting one of them free gear and the first sun gear input shaft 33 to be connected between the two and continues to keep the first even number shelves synchronizer 52 of empty set.
Between second odd number shelves clutch output shaft of described second multi-clutch and the corresponding section of described the first row carrier input shaft 43, the plural the first row carrier be provided with for transmitting torque between the first row carrier input shaft 43 and the second multi-clutch selects change gear group, comprises the 2 I, III grade of driving gear and the 2 I, III grade of driven gear.Between second even number shelves clutch output shaft of described second multi-clutch and the corresponding section of described second gear ring input shaft 38, plural second gear ring be provided with for transmitting torque between the second gear ring input shaft 38 and the second multi-clutch selects change gear group, comprises the 2 II, IV grade of driving gear and the 2 II, IV grade of driven gear.Similarly, 2 I, III grade of driving gear and the 2 II, IV grade of driving gear is be connected on the second odd number shelves output shaft 17 and the second even number shelves output shaft 21 respectively, second pair I, III grade of driven gear is that empty set to be arranged on the first row carrier input shaft 43 and to be provided with accordingly that another free gear continues to keep the second odd number shelves synchronizer 23 of empty set for selecting to be connected to one of them free gear of reply and the first row carrier input shaft 43, 2 II, IV grade of driven gear is that empty set to be arranged on the second gear ring input shaft 38 and to be provided with accordingly that another free gear continues to keep the second even number shelves synchronizer 24 of empty set for selecting to be connected to one of them free gear of reply and the second gear ring input shaft 38.
The first sun gear input shaft break 45, the first row carrier input shaft break 44, the second gear ring 26 output shaft break for the first sun gear input shaft 33 of correspondence, the first row carrier input shaft 43 or the second gear ring 26 output shaft being braked under corresponding control mechanism control is connected on described first sun gear input shaft 33, on the first row carrier input shaft 43, on the second gear ring 26 output shaft.
By the first multi-clutch, each first sun polling change gear group and the first odd number shelves synchronizer 47, first even number shelves synchronizer 52, first sun gear input shaft 33 can obtain 4 kinds of rotating speeds, when adding that the first sun gear input shaft break 45 is braked, the first sun gear input shaft 33 rotating speed is zero, first sun gear input shaft 33 has 5 kinds of rotating speeds, and namely the first sun gear 32 has 5 kinds of rotating speeds.Change gear group and the second odd number shelves synchronizer 23 is selected by the second odd number shelves output shaft 17 of the second multi-clutch, the first row carrier 35 axle, the first row carrier input shaft 43 can obtain 2 kinds of rotating speeds, when adding the first row carrier 35 brake, its rotating speed is zero, the first row carrier input shaft 43 has 3 kinds of rotating speeds, and namely the first row carrier 35 has 3 kinds of rotating speeds.Change gear group and the second even number shelves synchronizer 24 is selected by the second even number shelves output shaft 21, second gear ring of the second multi-clutch, the first row carrier input shaft 43 can obtain 2 kinds of rotating speeds, when adding the second gear ring input shaft 38 brake, its rotating speed is zero, second gear ring input shaft 38 has 3 kinds of rotating speeds, and namely the second gear ring 26 has 5 kinds of rotating speeds.Therefore, first planet row can export 5 × 3 kinds of rotating speeds to the first gear ring 27 and the second planet carrier 29 after being confluxed by the rotating speed of the first sun gear 32 and the first row carrier 35, second planet row can export (5 × 3) × 3=45 kind rotating speed to the second sun gear 30 after being confluxed by the rotating speed of the second planet carrier 29 and the second gear ring 26, namely, main output shaft 31 can export 45 kinds of rotating speeds, and gear exports and is easy to realize, and gear is many, gear wide ranges, can meet the various working condition of tractor to the requirement of speed.
Hereafter specifically tell about state and the power transmission line of each parts in the computational methods of velocity ratio and concrete a certain situation.
Double planet wheel rows of mixing confluence mechanism meets planet row characteristic equation in planet row Process of Confluence:
n t+αn q=(1+α)n j
In formula, n tfor sun gear rotating speed, n qfor gear ring rotating speed, n jfor planet carrier rotating speed, α is planet row special parameter.
If the first sun gear input shaft 33 rotating speed is n 1, front first sun gear input shaft 33 rotating speed is n 2, rear first sun gear input shaft 33 rotating speed is n 3.When planet row confluxes before in double planet wheel rows of mixing confluence mechanism, meet characteristic equation, then have:
n 11n q=(1+α 1)n 2
So: n q = ( 1 + α 1 ) n 2 - n 1 α 1
Rear planet row also meets characteristic equation when confluxing, then have:
n t2n 3=(1+α 2)n q
So output speed is: n t = ( 1 + α 2 ) n q - α 2 n 3 = ( 1 + α 2 ) ( 1 + α 1 ) n 2 - n 1 α 1 - α 2 n 3
In formula, α 1for front planet row special parameter, α 2for rear planet row special parameter.
If I, II, III, IV grade of velocity ratio in the first multi-clutch is respectively i 1, i 2, i 3, i 4, I, II, III, IV grade of velocity ratio in the first multi-clutch is respectively i 5, i 6, i 7, i 8, input shaft rotating speed is n 0.
Following table is n 1value and the state of the first odd number shelves clutch 12, first even number shelves clutch 11, first sun gear input shaft break 45 corresponding to each value.In table, "+" represents brake, and "-" represents break brake off.
When first sun gear input shaft break 45 is braked, the first sun gear input shaft 33 rotating speed is zero, realizes top gear and exports.
Following table is n 2value and the state of the second odd number shelves clutch 14 corresponding to each value and the first row carrier 35 break.In table, "+" represents brake, and "-" represents break brake off.
During the first row carrier 35 break action, the first row carrier 35 output shaft is braked, and realizes reverse gear and exports.
Following table is n 3value and the state of the second even number shelves clutch 15 corresponding to each value and the second gear ring break 25.In table, "+" represents brake, and "-" represents break brake off.
By the rotating speed n of the first sun gear input shaft 33 1, front first sun gear input shaft 33 rotating speed n 2, rear first sun gear input shaft 33 rotating speed n 3different values substitute into equations
n t = ( 1 + α 2 ) n q - α 2 n 3 = ( 1 + α 2 ) ( 1 + α 1 ) n 2 - n 1 α 1 - α 2 n 3 Different output speeds can be obtained.Such as, n is worked as 1, n 2, n 3n when being all zero t=0, these shelves are park.Work as n 1, n 2when being zero, n t=-α 2n 3, be now reverse gear.Work as n 1, n 3when being zero, it is now forward gears.Work as n 1, n 2, n 3value when determining, the state of each clutch and each break can be learnt with reference to above three forms.Certainly, each first sun polling change gear group, described the first row carrier select change gear group above, described second gear ring selects the velocity ratio of change gear group to be specifically determine according to actual shifting needs, be that those skilled in the art easily realize, concrete velocity ratio is no longer illustrated herein.
Described double planet wheel rows of mixing convergent current type multi-clutch speed changer corresponding described primary input axle 2, main output shaft 31, first sun gear input shaft 33, each clutch output shaft, the first row carrier input shaft 43, second gear ring input shaft 38 and load output shaft 22 are provided with the speed probe 6 of the rotating speed for detecting each axle, and electronic control unit 37 can obtain the rotary speed information of each speed probe 6.During work, each synchronizer all selects selector device 36 control connection with corresponding, describedly select selector device 36 and electronic control unit 37 control connection, wherein electronic control unit 37 i.e. ECU, that related domain is for controlling to select the conventional means of selector device and clutch operation action, concrete structure corresponding in the present invention is that those skilled in the art can realize, and no longer specifically introduces herein.Rule according to setting controls corresponding synchronizer action, each multi-clutch corresponds to the velocity ratio of each gear train rotating speed respectively to the first sun gear input shaft 33 and the input of the first row carrier input shaft 43 can be realized, electronic control unit 37 carries out Discern and judge according to the running state of each rotating speed speed probe 6 pairs of speed changers, and select process of power shift according to what set, when needs select gear-change operation, by clutch operation 46 and select selector device 36 to control respectively operation that each clutch and each synchronizer select gear shift action, realize automatic speed changing.
In above-described embodiment, first multi-clutch and the second multi-clutch include two clutches, in other embodiments, first multi-clutch and the second multi-clutch all can be arranged to the form of multiple clutch, and corresponding clutch output shaft is set, selects change gear group and synchronizer, to realize more gear.In above-described embodiment first odd, even several grades of synchronizers are arranged on the first sun gear input shaft 33, second odd, even several grades of synchronizers are be arranged on the first row carrier input shaft 43 with on the second gear ring input shaft 38 respectively, in other embodiments of the invention, first odd, even several grades of synchronizers also can be arranged on the first corresponding odd, even several grades of output shafts, and the second odd, even several grades of synchronizers also can be arranged on the second corresponding odd, even several grades of output shafts.In addition, the quantity of change gear group middle gear group is respectively selected also can be set to be greater than two, to adapt to the gear demand of varying number.

Claims (8)

1. double planet wheel rows of mixing convergent current type multi-clutch speed changer, comprise housing, for the primary input axle of moment of torsion input, the main output shaft of output torque, it is characterized in that: also comprise the first multi-clutch, the second multi-clutch and double planet wheel rows of mixing confluence mechanism, described first multi-clutch, the second multi-clutch include input end, two or more clutch output shaft and the clutch mechanism for selecting input end and one of them clutch output shaft to be in transmission connection for being connected with primary input axle coaxial transmission, described double planet wheel rows of mixing confluence mechanism comprises first planet row and the second planet row, the first sun gear is drawn together in described first planet package, the first row star-wheel, first gear ring and the first row carrier, also comprise the first sun gear input shaft to the first sun gear input torque, to the first row carrier input shaft of the first row carrier input torque, described second planet row comprises the second sun gear, second planet wheel, second gear ring and the second planet carrier, also comprise the second gear ring input shaft to the second gear ring input torque, described second planet carrier is that coaxial transmission is connected with described first gear ring, described second sun gear is connected with described main output shaft coaxial transmission, plural first sun polling change gear group for transmitting torque between the first sun gear input shaft and the first multi-clutch is equipped with between each clutch output shaft of described first multi-clutch and the corresponding section of the first sun gear input shaft, between one of them clutch output shaft of described second multi-clutch and the corresponding section of described the first row carrier input shaft, the plural the first row carrier be provided with for transmitting torque between the first row carrier input shaft and the second multi-clutch selects change gear group, another clutch output shaft in described second multi-clutch and between the corresponding section of described second gear ring input shaft plural second gear ring be provided with for transmitting torque between the second gear ring input shaft and the second multi-clutch select change gear group, empty set on the axle that includes corresponding to its transmitting torque is respectively selected in change gear group to rotate the free gear of assembling, corresponding with same clutch output shaft plurally select the free gear in change gear group to be select shift gear with relation arranged adjacent in couples one to one by what set, be provided with one of them free gear for selecting this right and place axle between two paired free gears and be connected and another free gear continues to keep the synchronizer of empty set.
2. double planet wheel rows of mixing convergent current type multi-clutch speed changer according to claim 1, is characterized in that: be connected to the break for the first sun gear input shaft of correspondence, the first row carrier input shaft or the second gear ring input shaft being braked under corresponding control mechanism control on described first sun gear input shaft, on the first row carrier input shaft, on the second gear ring input shaft.
3. double planet wheel rows of mixing convergent current type multi-clutch speed changer according to claim 1, it is characterized in that: the clutch output shaft of described first multi-clutch includes the first odd number shelves output shaft and the first even number shelves output shaft, the clutch output shaft of described second multi-clutch includes the second odd number shelves output shaft and the second even number shelves output shaft.
4. double planet wheel rows of mixing convergent current type multi-clutch speed changer according to claim 3, is characterized in that: each described first sun polling change gear group, each described the first row carrier select change gear group, each described second gear ring selects change gear group to be equipped with two groups.
5. the double planet wheel rows of mixing convergent current type multi-clutch speed changer according to claim 1-4 any one, is characterized in that: described double planet wheel rows of mixing convergent current type multi-clutch speed changer is provided with for controlling described clutch mechanism by the clutch operation of setting rule action, select selector device for what control each described synchronizer action.
6. double planet wheel rows of mixing convergent current type multi-clutch speed changer according to claim 5, it is characterized in that: described double planet wheel rows of mixing convergent current type multi-clutch speed changer comprises corresponding described primary input axle, main output shaft, each clutch output shaft, first sun gear input shaft, the speed probe of the rotating speed for detecting each axle that the first row carrier input shaft and the second gear ring input shaft are arranged, also comprise the rotary speed information for obtaining described speed probe and control described clutch operation according to rotary speed information and select the electronic control unit of selector device action, the signal output part of speed probe is connected with the signal input part of electronic control unit, electronic control unit and described clutch operation and select selector device control connection.
7. the double planet wheel rows of mixing convergent current type multi-clutch speed changer according to claim 1-4 any one, it is characterized in that: described primary input axle, the first multi-clutch, the second multi-clutch are arranged in order along same straight line, described first multi-clutch is provided with the moment of torsion coupling shaft for directly being exported by the moment of torsion of primary input axle, and the input end of described second multi-clutch is in transmission connection by coupling and described moment of torsion coupling shaft.
8. double planet wheel rows of mixing convergent current type multi-clutch speed changer according to claim 5, is characterized in that: the clutch output shaft of described first multi-clutch or the second multi-clutch comprises the load output shaft for the load output torque to correspondence.
CN201310155461.1A 2013-04-28 2013-04-28 Double-planet-row converging type multi-clutch transmission Expired - Fee Related CN103256355B (en)

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CN102678839A (en) * 2011-12-08 2012-09-19 河南科技大学 Double-clutch transmission used in tractor
CN203248638U (en) * 2013-04-28 2013-10-23 河南科技大学 Double-planet bus bar type multi-clutch speed changer

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DE102006006641A1 (en) * 2006-02-14 2007-08-30 Zf Friedrichshafen Ag Multi-step gear for planetary gear e.g. automatic gearbox for motor vehicle, has four planetary trains, seven rotational shafts and six shift elements, comprising brakes and clutches

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0276955A (en) * 1988-09-12 1990-03-16 Toyota Motor Corp Planetary gear type transmission
CN101021248A (en) * 2006-02-14 2007-08-22 Zf腓德烈斯哈芬股份公司 Multi-gear transmission
CN200949640Y (en) * 2006-09-22 2007-09-19 李云峰 Double planetary row type clutch
CN101165371A (en) * 2006-10-18 2008-04-23 许志刚 Multi-segment type power automatic speed controller
CN202091448U (en) * 2011-05-16 2011-12-28 山推工程机械股份有限公司 Multi-gear planetary gearbox
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CN203248638U (en) * 2013-04-28 2013-10-23 河南科技大学 Double-planet bus bar type multi-clutch speed changer

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