CN207999480U - Seven gear double-clutch speed changers and vehicle - Google Patents
Seven gear double-clutch speed changers and vehicle Download PDFInfo
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- CN207999480U CN207999480U CN201820481170.XU CN201820481170U CN207999480U CN 207999480 U CN207999480 U CN 207999480U CN 201820481170 U CN201820481170 U CN 201820481170U CN 207999480 U CN207999480 U CN 207999480U
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Abstract
The utility model belongs to transmission for vehicles technical field, provides one kind seven and keeps off double-clutch speed changer and vehicle, which includes:Outer input shaft and interior input shaft, it is fixed with 4/6 gear driving gear and 2 gear driving gears successively to the direction far from power source on outer input shaft, is fixed with 1 gear driving gear, 3 gear driving gears and 5/7 gear driving gear successively to the direction far from power source on interior input shaft;First output shaft and the second output shaft, 4 gear driven gears, 2 gear driven gears, 1 gear driven gear and 5 gear driven gears are disposed with to the direction far from power source on first output shaft, are disposed with 6 gear driven gears, reverse gear, reverse gear synchronizer, 3 gear driven gears and 7 gear driven gears to the direction far from power source on the second output shaft;Forward gear synchronizing device.The seven gears double-clutch speed changer eliminates reverse gear shaft, more compact structure, and reverse gear route is simpler, significant increase NVH performances.
Description
Technical field
The utility model belongs to transmission for vehicles technical field, and double-clutch speed changer and vehicle are kept off more particularly to one kind seven
.
Background technology
Double-clutch speed changer is that two gearboxes and two clutches are integrated in a transmission case body, and two can turn
The inside and outside input shaft to connect together dynamicly is connected with one of clutch respectively, and two input shafts transmit two changes respectively
The power of fast case velocity group completes shift program by automatically switching between two clutches, therefore can realize shift
The shortcomings that duration of power in the process interrupts power in shift process, overcomes AMT shift shocks, vehicle are changing
During gear, the power of engine can be shifted gears rapid steady for delivery to wheel, not only ensure that the acceleration of vehicle always,
And since vehicle no longer generates the situation that is a significant slowdown caused by shift, the comfortable of vehicle operation is also greatly improved
Property.
When gear is arranged, mostly low gear is disposed adjacent to speed changer rear end to existing seven gears double-clutch speed changer, this makes
The driven gear that case of transmission rear end needs larger space low gear is obtained, the longeron of vehicle and the cloth of semiaxis are unfavorable for
It sets.
Also, existing seven gears double-clutch speed changer is disposed with special reverse gear shaft in shaft system arrangement, the reverse gear shaft
Arrangement not only increases arrangement space, while also adding the weight and cost of speed changer.In addition, the existing double clutches of seven gears become
Fast device reverses gear, and transmission path is complicated and gear engagement quantity is more, is unfavorable for the compactedness and noiseproof feature of speed changer space layout
It is required that and then influencing the economy and driver comfort of the lightweight of speed changer, miniaturization and vehicle.
Utility model content
Technical problem to be solved in the utility model is:It reverses gear transmission path for existing seven gears double-clutch speed changer
Complicated and gear engagement quantity is more, is unfavorable for the defect that the compactedness of speed changer space layout requires, and it is double to provide seven gear of one kind
Clutch speed changer and vehicle.
In order to solve the above technical problems, on the one hand, the utility model embodiment provides one kind seven and keeps off double-clutch speed changer, packet
It includes:
The outer input shaft and interior input shaft coaxially nested together, the interior input shaft pass through first clutch and power source
Connection, the outer input shaft are connect by second clutch with power source, to the direction far from power source on the outer input shaft
It is fixed with 4/6 gear driving gear and 2 gear driving gears successively, is fixed successively to the direction far from power source on the interior input shaft
There are 1 gear driving gear, 3 gear driving gears and 5/7 gear driving gear;
First output shaft and the second output shaft, first output shaft, the second output shaft and outer input shaft parallel interval are set
Set, on first output shaft to far from power source direction be disposed with 4 gear driven gears, 2 gear driven gears, 1 gear from
Moving gear and 5 gear driven gears, on second output shaft to the direction far from power source be disposed with 6 gear driven gears,
Reverse gear, reverse gear synchronizer, 3 gear driven gears and 7 gear driven gears, the 4 gear driven gear, 2 gear driven gears, 1 gear
Driven gear and 5 gear driven gear empty sets are on first output shaft, 6 gear driven gear, the reverse gear, synchronization of reversing gear
On second output shaft, the reverse gear synchronizer is described for controlling for device, 3 gear driven gears and 7 gear driven gear empty sets
The engagement and detach that reverse gear keeps off driven gear with described 3;The 1 gear driving gear and 1 gear driven gear engagement, described 2
Gear driving gear is engaged with the 2 gear driven gear, and the reverse gear is engaged with the 2 gear driven gear, and 3 gear is actively
Gear and 3 gear driven gears engagement, it is described 4/6 gear driving gear simultaneously with it is described 4 gear driven gear and 6 gear it is driven engage, institute
5/7 gear driving gear is stated to engage with the 5 gear driven gear and 7 gear driven gears simultaneously;
Forward gear synchronizing device, the forward gear synchronizing device for control all forward gear driven gears with its residing for
Output shaft engagement and separation.
The utility model embodiment seven gear double-clutch speed changers, even number gear driving gear (i.e. 4/6 keep off driving gear and
2 gear driving gears) it is arranged on outer input shaft, driving gear (i.e. 1 gear driving gear, the 3 gear driving gears and 5/7 of odd number gear
Gear driving gear) it is arranged on interior input shaft.1, the driven gear of 2,4,5 gears is arranged on the first output shaft;3,6 it, 7, reverses gear
Gear is arranged on the second output shaft, and 1 gear is arranged in the intermediate position of power train in gear arrangement, high gear is arranged in biography
The rear end of dynamic system, is designed relatively small conducive to by case of transmission rear end radial space, cabinet design obtain it is more compact, while
Well-to-do arrangement space can be provided for vehicle longeron and semiaxis arrangement, improve vehicle performance.In addition, eliminating reverse gear shaft,
It is driven that gear power transmission can borrow the first output shaft (as idler shaft), 3 gear active driven gears, 2 gear driving gears and two gears
Gear saves a dedicated reverse gear shaft as the transmission parts to reverse gear, there is larger contribution in weight and cost, input
The centre-to-centre spacing of axis and two output shafts can be designed smaller, more compact structure, while the transmission path that reverses gear is simple, reduces tooth
Wheel engagement quantity, transmission is more steady, is conducive to the noise abatement of double-clutch speed changer.
Optionally, it controls the reverse gear by the reverse gear synchronizer to engage with the 3 gear driven gear, and simultaneously
By the forward gear synchronizing device control except it is described 2 gear driven gear in addition to other forward gear driven gears with its residing for
The gear reversing function of the seven gears double-clutch speed changer is realized in the separation of output shaft with this;
At this point, the power to reverse gear that power source provides is via the first clutch, interior input shaft, 3 gear driving gears, 3
Gear driven gear, reverse gear, 2 gear driven gears, the first output shaft, is transferred to output end at reverse gear synchronizer.
Optionally, position opposite with the reverse gear and the 3 gear driven gear on second output shaft is arranged
Be useful for support and install the 3/ of the reverse gear and the 3 gear driven gear reversing gear needle bearing, the reverse gear it is interior
It is provided with the bearing that reverses gear in circle, reverse gear axle sleeve, reverse gear axle sleeve position are provided in the inner ring of the bearing that reverses gear
It reverses gear between needle bearing and the bearing that reverses gear in described 3/.
Optionally, it is arranged with reverse gear end face successively to the direction far from power source on the periphery of second output shaft
Bearing, described 3/ reverse gear needle bearing, 3 gear driven gear end face bearings and 3 gear driven gear spacers, the reverse gear axle sleeve
Close to power source side by reverse gear end face bearing limit, it is described 3 gear side of the driven gear far from power source by
The 3 gear driven gear end face bearing and 3 gear driven gear spacer limits.
Optionally, when axial force of the 3 gear driven gear by the direction of close power source, pass through the tooth that reverses gear
The end face far from the power source of axle sleeve limits.
Optionally, the reverse gear axle sleeve includes reverse gear support portion and reverse gear limiting section, the tooth that reverses gear
Wheel support portion is set to the bearing and described 3/ that reverses gear and reverses gear between needle bearing, and the reverse gear support portion is used in diameter
Support the reverse gear upwards, the reverse gear limiting section be set to the reverse gear and reverse gear end face bearing it
Between, the reverse gear limiting section is used to limit the axial movement of the reverse gear.
Optionally, the reverse gear axle sleeve is L-type, and the reverse gear support portion mutually hangs down with reverse gear limiting section
Directly.
Optionally, the reverse gear support portion is additionally provided with perforative oil guiding hole, one end of the oil guiding hole radially
It is connected to described 3/ to reverse gear needle bearing, the other end of the oil guiding hole is connected to the bearing that reverses gear.
Optionally, the reverse gear axle sleeve further includes reverse gear end face bearing support portion, the reverse gear end face
Bearing support portion limits the axial float of reverse gear end face bearing, the reverse gear support portion and the reverse gear
End face bearing support portion is located at the both sides of the reverse gear limiting section respectively.
Optionally, the tooth hub of the reverse gear synchronizer by spline or welded connection on the reverse gear.
Optionally, the forward gear synchronizing device includes:
It is arranged on first output shaft and 2/4 gear kept off between driven gear and 4 gear driven gears positioned at described 2 is same
Device is walked, the 2/4 gear synchronizer is for controlling 2 gear driven gear and the engagement of first output shaft and detaching and use
In controlling 4 gear driven gear and the engagement of first output shaft and detach;
It is arranged on first output shaft and 1/5 gear kept off between driven gear and 5 gear driven gears positioned at described 1 is same
Device is walked, the 1/5 gear synchronizer is for controlling 1 gear driven gear and the engagement of first output shaft and detaching and use
In controlling 5 gear driven gear and the engagement of the first output shaft and detach;
It is arranged on second output shaft and 6 between the 6 gear driven gear and reverse gear keeps off synchronizers,
The 6 gear synchronizer is for controlling 6 gear driven gear and the engagement of second output shaft and detaching;
It is arranged on second output shaft and 3/7 gear kept off between driven gear and 7 gear driven gears positioned at described 3 is same
Device is walked, the 3/7 gear synchronizer is for controlling 3 gear driven gear and the engagement of second output shaft and detaching and use
In controlling 7 gear driven gear and the engagement of second output shaft and detach.
Optionally, the tooth hub of the tooth hub of the 2/4 gear synchronizer and 1/5 gear synchronizer is connected to described the by spline
On one output shaft, the tooth hub of the 6 gear synchronizer and 3/7 gear synchromesh gear hub are connected to second output shaft by spline
On.
Optionally, the 4/6 gear driving gear, 4 gear driven gears and 6 gear driven gears formation co-planar gear sets, described 2
It keeps off driving gear, 2 gear driven gears and reverse gear and forms co-planar gear set, the 5/7 gear driving gear, 5 gear driven gears
And 7 gear driven gear formed co-planar gear set.
Optionally, the first final gear, institute are disposed with to the direction far from power source on first output shaft
It states on the second output shaft to the direction far from power source is disposed with the second final gear, first final gear is consolidated
It is scheduled on first output shaft, second final gear is fixed on second output shaft, the first main deceleration
Gear and the second final gear are engaged with the gear ring of differential mechanism simultaneously, first final gear, the second final gear
And the gear ring of differential mechanism forms co-planar gear set.
Optionally, the 4/6 gear driving gear and 2 gear driving gears are connected by welding, spline, interference is pressed or straight
The mode integrally generated on axis is connected on to be fixed on the outer input shaft;
The 1 gear driving gear, 3 gear driving gears and 5/7 gear driving gear are pressed by welding, spline connection, interference
Or the mode directly integrally generated on axis is fixed on the interior input shaft.
In addition, the utility model embodiment also provides a kind of vehicle comprising seven above-mentioned gear double-clutch speed changers.
Description of the drawings
Fig. 1 is the frame diagram for the seven gear double-clutch speed changers that one embodiment of the utility model provides;
Fig. 2 is the partial sectional view of 3 gear driven gears and reverse gear position that one embodiment of the utility model provides.
Reference numeral in Figure of description is as follows:
1, outer input shaft;2, the second final gear;3,6 gear driven gear;4,6 gear synchronizer;5, reverse gear;6, it falls
Keep off synchronizer;7,3 gear driven gear;8,3/7 gear synchronizer;9, the second output shaft;10,7 gear driven gear;11,1 gear driving tooth
Wheel;12,3 gear driving gear;13,5/7 gear driving gear;14, interior input shaft;15, the first output shaft;16,5 gear driven gear;
17,1/5 gear synchronizer;18,1 gear driven gear;19,2 gear driven gear;20,2/4 gear synchronizer;21, differential mechanism;22, tooth
Circle;23,4 gear driven gear;24, the first final gear;25,2 gear driving gear;26,4/6 gear driving gear;27, power
Source;28, second clutch;29, first clutch;30,3 gear driven gear spacer;31,3 gear driven gear end face bearing;32,
3/ reverses gear needle bearing;33, reverse gear bearing;34, reverse gear axle sleeve;35, reverse gear end face bearing.
Specific implementation mode
The technical issues of in order to keep the utility model solved, technical solution and advantageous effect are more clearly understood, below
Connection with figures and embodiment, are described in further detail the utility model.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
As shown in Figure 1, the seven gear double-clutch speed changers that the utility model embodiment provides, including:
The outer input shaft 1 and interior input shaft 14 coaxially nested together, the interior input shaft 14 pass through first clutch 29
Connect with power source 27, the outer input shaft 1 is connect by second clutch 28 with power source 27, on the outer input shaft 1 to
Direction far from power source 27 is fixed with 4/6 gear driving gear 26 and 2 gear driving gear 25 successively, on the interior input shaft 14 to
Direction far from power source 27 is fixed with 1 gear driving gear 11,3 gear driving gear 12 and 5/7 and keeps off driving gear 13 successively.
First output shaft 15 and the second output shaft 9, first output shaft 15, the second output shaft 9 and outer input shaft 1 are parallel
Interval is arranged, and the first final gear 24,4 gear is disposed with to the direction far from power source 27 on first output shaft 15
Driven gear 23,2, which keeps off driven gear 19,1, to be kept off driven gear 18 and 5 and keeps off driven gear 16, to separate on second output shaft 9
The direction of power source 27 is disposed with the second final gear 2,6 gear driven gear 3, reverse gear 5, reverse gear synchronizer 6,3
It keeps off driven gear 7 and 7 and keeps off driven gear 10, first final gear 24 is fixed on first output shaft 15, described
Second final gear 2 is fixed on second output shaft 9, it is described 4 gear driven gear 23,2 keep off driven gear 19,1 gear from
Moving gear 18 and 5 keeps off 16 empty set of driven gear on first output shaft 15, and the 6 gear driven gear 3, falls at reverse gear 5
It keeps off synchronizer 6,3 and keeps off gear 10 empty set of driven gear of driven gear 7 and 7 on second output shaft 9, the reverse gear synchronizer 6
For controlling the engagement and detach that the reverse gear 5 keeps off driven gear 7 with described 3;First final gear 24 and
Two final gears 2 are engaged with the gear ring 22 of differential mechanism 21 simultaneously, and the 1 gear driving gear 11 and 1 keeps off driven gear 18 and engages,
The 2 gear driving gear 25 is engaged with the 2 gear driven gear 19, and the reverse gear (5) keeps off driven gear (19) with described 2
Engagement, the 3 gear driving gear 12 and 3 keep off driven gear 7 and engage, and the 4/6 gear driving gear 26 is driven with 4 gear simultaneously
Gear 23 and 6 keeps off driven gear 3 and engages, and the 5/7 gear driving gear 13 is driven with the 5 gear gear of driven gear 16 and 7 simultaneously
Gear 10 engages.
Forward gear synchronizing device, the forward gear synchronizing device for control all forward gear driven gears with its residing for
Output shaft engagement and separation.Herein, forward gear driven gear refers to other driven gears in addition to reverse gear 5,
I.e. 1 gear driven gear 18,2 keep off driven gear 19,3 keep off driven gear 7,4 keep off driven gear 23,5 keep off driven gear 16,6 gear from
Moving gear 3 and 7 keeps off driven gear 10.
Power source 27 for example can be that engine, the motor hybrid power that either engine and motor collectively constitute are total
At.First clutch 29 constitutes double clutch with second clutch 28.
The seven gear double-clutch speed changers of the utility model embodiment, driving gear (the i.e. 4/6 gear driving gear 26 of even number gear
And 2 gear driving gear 25) be arranged on outer input shaft 1, odd number gear driving gear (i.e. 1 gear driving gear 11,3 gear driving tooth
12 and 5/7 gear driving gear 13 of wheel) it is arranged on interior input shaft 14.1, the driven gear of 2,4,5 gears is arranged in the first output shaft
On 15,3,6,7, reverse gear be arranged on the second output shaft 9,1 gear is arranged in the intermediate position of power train in gear arrangement,
High gear is arranged in the rear end of power train, is designed relatively small conducive to by case of transmission rear end radial space, babinet is set
It counts more compact, while may be that vehicle longeron and semiaxis arrangement provide well-to-do arrangement space, improve vehicle performance.This
Outside, reverse gear shaft is eliminated, the power that reverses gear transmission can borrow the first output shaft 15 (as idler shaft), 3 gear active driven gears, 2
It keeps off driving gear 25 and two and keeps off driven gear 19 as the transmission parts to reverse gear, a dedicated reverse gear shaft is saved, in weight
And have larger contribution in cost, the centre-to-centre spacing of input shaft and two output shafts can be designed smaller, more compact structure, simultaneously
The transmission path that reverses gear is simple, reduces gear engagement quantity, transmission is more steady, is conducive to the noise abatement of double-clutch speed changer.
In addition, 4,6 gears, which share the one 4/6 gear gear of driving gear 26,5,7, shares one 5/7 gear driving gear 13, reduce
The usage amount of driving gear shortens the axial length of speed changer, alleviates the weight of speed changer.In one embodiment, pass through
The reverse gear synchronizer 6 controls the reverse gear 5 and is engaged with the 3 gear driven gear 7, and same by the forward gear simultaneously
The separation for walking other forward gear driven gears and output shaft it residing for of the device control in addition to the 2 gear driven gear, with
This realizes the gear reversing function of the seven gears double-clutch speed changer.At this point, the power to reverse gear that power source 27 provides is via described the
One clutch 29, interior input shaft 14,3 keep off driving gear 12,3 and keep off driven gear 7, reverse gear synchronizer 6, the gear master of reverse gear 5,2
Moving gear 25,2 keeps off driven gear 19, the first output shaft 15, the first final gear 24 and differential mechanism 21 and is transmitted.
Also, 1 gear is higher with frequency of use of reversing gear, and power source 27 transfers power to 1 gear and change in torque when reversing gear
Greatly, relatively large to the fretting wear of clutch, if the power interruption kept off and reversed gear using same clutch control 1, will aggravate
The fretting wear of clutch, therefore, the utility model are controlled 1 gear with reversing gear by second clutch 28 and first clutch 29 respectively
The break-make of brake force is conducive to the service life for improving second clutch 28 and first clutch 29.
In one embodiment, the outer input shaft 1, interior input shaft 14, the first output shaft 15 and the second output shaft 9 lead to respectively
It crosses bearing to be rotatably supported on case of transmission, to realize that stablizing for each axis supports.
In one embodiment, 4/6 gear driving gear 26, the 4 gear gear driven gear 3 of driven gear 23 and 6 is formed coplanar
Gear set, the 2 gear driving gear 25,2 keeps off driven gear 19 and reverse gear 5 forms co-planar gear set, and 5/7 gear is actively
Gear 13,5 keeps off driven gear 16 and 7 and keeps off the formation co-planar gear set of driven gear 10, and first final gear 24, second is led
The gear ring 22 of reduction gearing 2 and differential mechanism 21 forms co-planar gear set.It can reduce speed changer by constructing co-planar gear set
Axial dimension reduces the volume of speed changer.
In one embodiment, the 4/6 gear driving gear 26 and 2 gear driving gear 25 passes through welding, spline connection, interference
Press fitting or the mode directly integrally generated on axis are fixed on the outer input shaft 1.1 gear driving gear 11, the 3 gear master
Moving gear 12 and 5/7 keeps off the side that driving gear 13 is pressed or is directly integrally generated on axis by welding, spline connection, interference
Formula is fixed on the interior input shaft 14.
In one embodiment, the forward gear synchronizing device includes:
It is arranged on first output shaft 15 and keeps off driven gear 19 and 4 positioned at described 2 and keeps off between driven gear 23
2/4 gear synchronizer 20, the 2/4 gear synchronizer 20 are used to control the 2 gear driven gear 19 and first output shaft 15
Engagement and separation and for controlling 4 gear driven gear 23 and the engagement of first output shaft 15 and detaching.
It is arranged on first output shaft 15 and keeps off driven gear 18 and 5 positioned at described 1 and keeps off between driven gear 16
1/5 gear synchronizer 17, the 1/5 gear synchronizer 17 are used to control the 1 gear driven gear 18 and first output shaft 15
Engagement and separation and for controlling 5 gear driven gear 16 and the engagement of the first output shaft 15 and detaching.
It is arranged on second output shaft 9 and 6 gears kept off between driven gear 3 and reverse gear 5 positioned at described 6 is synchronous
Device 4, the 6 gear synchronizer 4 is for controlling 6 gear driven gear 3 and the engagement of second output shaft 9 and detaching.
Be arranged on second output shaft 9 and positioned at it is described 3 keep off driven gear 7 and 7 keep off driven gear 10 between 3/7
Gear synchronizer 8, the 3/7 gear synchronizer 8 are used to control the engagement of the 3 gear driven gear 7 and second output shaft 9 and divide
From and for controlling 7 gear driven gear 10 and the engagement of second output shaft 9 and detach.
In one embodiment, the tooth hub of the reverse gear synchronizer 6 by spline or welded connection in the reverse gear 5
On.The tooth hub of the tooth hub of the 2/4 gear synchronizer 20 and 1/5 gear synchronizer 17 is connected to first output shaft by spline
On 15, the tooth hub of the tooth hub of the 6 gear synchronizer 4 and 3/7 gear synchronizer 8 is connected to second output shaft 9 by spline
On.
In one embodiment, as shown in Fig. 2, it is driven with the reverse gear 5 and 3 gear on second output shaft 9
The opposite position of gear 7, which is provided with, to be used to support the 3/ of the installation reverse gear 5 and the 3 gear driven gear 7 and reverses gear needle roller
Bearing 32.It is provided with the bearing 33 that reverses gear in the inner ring of the reverse gear 5, is provided with and reverses gear in the inner ring of the bearing 33 that reverses gear
Gear bush 34.It is arranged with reverse gear end face successively to the direction far from power source 27 on the periphery of second output shaft 9
Bearing 35, described 3/ needle bearing 32,3 that reverses gear keep off driven gear end face bearing 31 and 3 and keep off driven gear spacer 30.Described 3/ falls
Gear needle bearing 32 simultaneously supports the reverse gear axle sleeve 34 and the 3 gear driven gear 7.The reverse gear axle sleeve 34 leans on
The side of nearly power source 27 is limited by reverse gear end face bearing 35, and described 3 keep off one of driven gear 7 far from power source 27
Side keeps off 31 and 3 gear driven gear spacer 30 of driven gear end face bearing by described 3 and limits.When 3 gear driven gears 7 are by Fig. 2
To the right when the axial force in (direction of close power source 27), pass through the left side of reverse gear axle sleeve 34 (far from the power source
27 end face) limit.In such manner, it is possible to reduce 3/ radial clearance for reversing gear needle bearing 32, be conducive to steadily be driven, and to fall
Gear is not easy off-gear.
In one embodiment, the reverse gear axle sleeve 34 is fitted in the inner ring of the bearing 33 that reverses gear.It is described to reverse gear
Gear bush 34 includes reverse gear support portion and reverse gear limiting section.The reverse gear axle sleeve 34 is L-type, described to reverse gear
Gear supporting portion is mutually perpendicular to reverse gear limiting section.The reverse gear support portion is set to reverse gear bearing 33 and the institute
It states 3/ to reverse gear between needle bearing 32, the reverse gear support portion for supporting the reverse gear 5 radially.It is described fall
Gear gear position limiting portion is set between the reverse gear 5 and reverse gear end face bearing 35, and the reverse gear limiting section is used
In the axial movement for limiting the reverse gear 5.Preferably, the reverse gear support portion is additionally provided with perforative lead radially
Oilhole, one end of the oil guiding hole are connected to described 3/ and reverse gear needle bearing 32, and the other end of the oil guiding hole is connected to described
Reverse gear bearing 33.In addition, the reverse gear axle sleeve 34 may also include reverse gear end face bearing support portion, the reverse gear
End face bearing support portion limits the axial float of reverse gear end face bearing.The reverse gear support portion reverses gear with described
Gear face bearing support portion is located at the both sides of the reverse gear limiting section respectively.
By controlling reverse gear synchronizer 6 and forward gear synchronizing device (2/4 gear synchronizer, 1/5 gear synchronizer, 6 gear synchronizers
And 3/7 gear synchronizer) different working condition, can realize seven forward gears and one reverses gear, with this construct seven gears it is double from
Close speed changer.
Power transmission line when being operated in each gear to the double-clutch speed changer of the present embodiment with reference to Fig. 1 is said
Bright (power source 27 is selected as engine):
One gear power transmission route:
First, (i.e. 1 gear driven gear 18 connects with the first output shaft 15 for the 1/5 gear gear driven gear 18 of synchronizer 17 and 1 engagement
Close), first clutch 29 is closed, and the torque of engine passes to 1 gear driving tooth of interior input shaft 14 by first clutch 29
Wheel 11 is transferred to 1 gear driven gear 18 via 1 gear driving gear 11.1 gear driven gear 18 and 1/5 keeps off synchronizer (17) and will turn round
Square is transmitted to the first final gear 24 on the first output shaft 15, then by the gear ring 22 of differential mechanism 21, and finally by differential
Device 21 exports power.
Two gear power transmission routes:
2/4 gear synchronizer 20 and 2 keeps off the engagement of driven gear 19 (i.e. 2 gear driven gears 19 are engaged with the first output shaft 15),
Second clutch 28 is closed, and engine torque passes to outer input shaft 1 by second clutch 28, via being fixed on outer input shaft
2 gear driving gears 25 on 1 pass to 2 gear driven gears 19, then are engaged and will be turned round with 2/4 gear synchronizer 20 by 2 gear driven gears 19
Square is transmitted to the first final gear 24 on the first output shaft 15, then by the gear ring 22 of differential mechanism 21, and finally by differential
Device 21 exports power.
Three gear power transmission routes:
3/7 gear synchronizer 8 and 3 keeps off driven gear 7 and engages (i.e. 3 gear driven gears 7 are engaged with the second output shaft 9), and first
Clutch 29 is closed, and the torque of engine passes to 3 gear driving gears 12 of interior input shaft 14 by first clutch 29, via
3 gear driving gears 12 pass to 3 gear driven gears 7.3 gear driven gears 7 and 3/7 keep off synchronizer 8 and transfer torque to the second output
The second final gear 2 on axis 9, then by the gear ring 22 of differential mechanism 21, and power is finally exported by differential mechanism 21.
Four gear power transmission routes:
2/4 gear synchronizer 20 and 4 keeps off the engagement of driven gear 23 (i.e. 4 gear driven gears 7 are engaged with the first output shaft 15), the
Two clutches 28 are closed, and the torque of engine passes to outer input shaft 1 by second clutch 28, via being fixed on outer input shaft
4/6 gear driving gear 26 on 1 passes to 4 gear driven gears 23, then being engaged with 2/4 gear synchronizer 20 by 4 gear driven gears 23 will
Torque is transmitted to the first final gear 24 on the first output shaft 15, then by the gear ring 22 of differential mechanism 21, and finally by difference
Fast device 21 exports power.
Five gear power transmission routes:
1/5 gear synchronizer 17 and 5 keeps off the engagement of driven gear 16 (i.e. 5 gear driven gears 16 are engaged with the first output shaft 15),
First clutch 29 is closed, and the torque of engine passes to 5/7 gear driving gear of interior input shaft 14 by first clutch 29
13, pass to 5 gear driven gears 16 via 5/7 gear driving gear 13.5 gear driven gears 16 and 1/5 keep off synchronizer 17 and pass torque
The first final gear 24 being delivered on the first output shaft 15, then by the gear ring 22 of differential mechanism 21, and finally by differential mechanism 21
Export power.
Six gear power transmission routes:
6 gear synchronizers 4 and 6 keep off the engagement of driven gears 3 (i.e. 6 keep off driven gears 3 is engaged with the second output shaft 9), second from
Clutch 28 is closed, and the torque of engine passes to outer input shaft 1 by second clutch 28, via being fixed on outer input shaft 1
4/6 gear driving gear 26 pass to 6 gear driven gears 3, then by 6 gear driven gears 3 with 6 keep off synchronizers 4 and engage and transmit torque
The second final gear 2 on to the second output shaft 9, then by the gear ring 22 of differential mechanism 21, and finally exported by differential mechanism 21
Power.
Seven gear power transmission routes:
3/7 gear synchronizer 8 and 7 keeps off the engagement of driven gear 10 (i.e. 7 gear driven gears 10 are engaged with the second output shaft 9), the
One clutch 29 is closed, and the torque of engine passes to 5/7 gear driving gear 13 of interior input shaft 14 by first clutch 29,
7 gear driven gears 10 are passed to via 5/7 gear driving gear 13.Keeping off the engagement of synchronizer 8 by 7 gear driven gears 10 and 3/7 again will turn round
Square is transmitted to the second final gear 2 on the second output shaft 9, then by the gear ring 22 of differential mechanism 21, and finally by differential mechanism
21 output power.
Power transmission of reversing gear route:
2/4 gear synchronizer 20 and 2 keeps off the engagement of driven gear 19 (i.e. 2 gear driven gears 19 are engaged with the first output shaft 15),
Reverse gear synchronizer 6 and 3 keeps off the engagement of driven gear 7, and (i.e. reverse gear 5 is combined one with 3 gear driven gears 7 by reverse gear synchronizer 6
Body), first clutch 29 is closed, and the torque of engine passes to interior input shaft 14 by first clutch 29, via being fixed on
3 gear driving gears 12 on interior input shaft 14 pass to 3 gear driven gears 7, are engaged with reverse gear synchronizer 6 via 3 gear driven gears 7
Reverse gear 5 is transferred torque to, 2 gear driving gears 2 gear driven gear 19,2 is passed to by reverse gear 5 and keeps off 19 He of driven gear
The engagement of 2/4 gear synchronizer 20 transfers torque to the first final gear 24 on the first output shaft 15, then passes through differential mechanism
21 gear ring 22, and power is finally exported by differential mechanism 21.
Below only by taking 3 gears as an example, illustrate the shift process of the seven gear double-clutch speed changers of above-described embodiment.Other gears
Shift process is similar.
It is as follows that 3 gears change the process of reversing gear:When 3 gear, 3/7 gear synchronizer 8 and 3 keeps off driven gear 7 and engages, and first clutch 29 closes
It closes, second clutch 28 is opened.The control system of dual-clutch transmission is sent out after 3 gears change and reverse gear instruction, gear shifting actuating mechanism
2/4 gear synchronizer 20 and 2 is kept off driven gear 19 in advance to combine, second clutch 28 is still in opening state, i.e., second at this time
Clutch 28 and outer input shaft 1 not passing powers.As shift process continues, first clutch 29 is gradually opened, same with this
When second clutch 28 be gradually closed, during this, have clutch combination always, be not in torque break.First clutch
After 29 complete openings, second clutch 28 are closed completely, shift process terminates.First clutch 29 is in opening state at this time,
That is first clutch 29, interior input shaft 14 not passing power, it is driven that the torque of engine via second clutch 28 is transmitted to 2 gears
On gear 19,2 gear driven gears 19 and 2/4 keep off synchronizer 20 and transfer torque to the first main reducing gear on the first output shaft 15
Wheel 24, then by the gear ring 22 of differential mechanism 21, and power is finally exported by differential mechanism 21.
In addition, one embodiment of the utility model additionally provides a kind of vehicle comprising the double clutches of seven gears of above-described embodiment
Speed changer.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (16)
1. one kind seven keeps off double-clutch speed changer, which is characterized in that including:
The outer input shaft (1) and interior input shaft (14) coaxially nested together, the interior input shaft (14) pass through first clutch
(29) it is connect with power source (27), the outer input shaft (1) is connect by second clutch (28) with power source (27), described outer
It is fixed with 4/6 gear driving gear (26) and 2 gear driving gears successively to the direction far from power source (27) on input shaft (1)
(25), it is fixed with 1 gear driving gear (11), 3 gear masters successively to the direction far from power source (27) on the interior input shaft (14)
Moving gear (12) and 5/7 gear driving gear (13);
First output shaft (15) and the second output shaft (9), first output shaft (15), the second output shaft (9) and outer input shaft
(1) parallel interval is arranged, and 4 gear driven tooths are disposed with to the direction far from power source (27) on first output shaft (15)
Take turns (23), 2 gear driven gears (19), 1 gear driven gear (18) and 5 gear driven gears (16), on second output shaft (9) to
Far from power source (27) direction be disposed with 6 gear driven gears (3), reverse gear (5), reverse gear synchronizer (6), 3 gear from
Moving gear (7) and 7 gear driven gears (10), the 4 gear driven gear (23), 2 gear driven gears (19), 1 gear driven gear
(18) and 5 gear driven gear (16) empty sets are on first output shaft (15), the 6 gear driven gear (3), reverse gear
(5), reverse gear synchronizer (6), 3 gear driven gears (7) and 7 gear driven gear (10) empty sets are on second output shaft (9), institute
Reverse gear synchronizer (6) is stated for controlling the engagement and detach that the reverse gear (5) keeps off driven gear (7) with described 3;Described 1
It keeps off driving gear (11) and 1 gear driven gear (18) engages, the 2 gear driving gear (25) keeps off driven gear (19) with described 2
Engagement, the reverse gear (5) are engaged with the 2 gear driven gear (19), the 3 gear driving gear (12) and 3 gear driven tooths
(7) engagement is taken turns, described 4/6 keeps off driving gear (26) while being engaged with the 4 gear driven gear (23) and 6 gear driven gears (3),
Described 5/7 keeps off driving gear (13) while being engaged with the 5 gear driven gear (16) and 7 gear driven gears (10);
Forward gear synchronizing device, the forward gear synchronizing device be used for control all forward gear driven gears with its residing for it is defeated
The engagement and separation of shaft.
2. seven gears double-clutch speed changer according to claim 1, which is characterized in that controlled by the reverse gear synchronizer (6)
It makes the reverse gear (5) to engage with the 3 gear driven gear (7), and is removed simultaneously by forward gear synchronizing device control
The separation of other forward gear driven gears and the output shaft residing for it other than the 2 gear driven gear, described seven are realized with this
Keep off the gear reversing function of double-clutch speed changer;
At this point, the power to reverse gear that power source (27) provides is led via the first clutch (29), interior input shaft (14), 3 gears
Moving gear (12), 3 gear driven gears (7), reverse gear synchronizer (6), reverse gear (5), 2 gear driven gears (19) and the first output
Axis (15) is transferred to output end.
3. seven gears double-clutch speed changer according to claim 1, which is characterized in that on second output shaft (9) and institute
It states reverse gear (5) and the opposite position of 3 gear driven gear (7) is provided with and is used to support the installation reverse gear (5)
It reverses gear needle bearing (32) with the 3/ of the 3 gear driven gear (7), reverse gear shaft is provided in the inner ring of the reverse gear (5)
It holds (33), reverse gear axle sleeve (34), reverse gear axle sleeve (34) position is provided in the inner ring of the bearing that reverses gear (33)
It reverses gear between needle bearing (32) and the bearing that reverses gear (33) in described 3/.
4. seven gears double-clutch speed changer according to claim 3, which is characterized in that the periphery of second output shaft (9)
On to the direction far from power source (27) be arranged with reverse gear end face bearing (35) successively, described 3/ reverse gear needle bearing
(32), 3 gear driven gear end face bearings (31) and 3 gear driven gear spacers (30), the reverse gear axle sleeve (34) is close to dynamic
The side in power source (27) is limited by reverse gear end face bearing (35), and the 3 gear driven gear (7) is far from power source (27)
Side by it is described 3 keep off driven gear end face bearing (31) and 3 gear driven gear spacers (30) limit.
5. it is according to claim 4 seven gear double-clutch speed changer, which is characterized in that when it is described 3 gear driven gear (7) by
When close to the axial force in the direction of power source (27), by the reverse gear axle sleeve (34) far from the power source (27)
End face limits.
6. seven gears double-clutch speed changer according to claim 4, which is characterized in that the reverse gear axle sleeve (34) includes
Reverse gear support portion and reverse gear limiting section, the reverse gear support portion be set to it is described reverse gear bearing (33) with it is described
3/ reverses gear between needle bearing (32), and the reverse gear support portion is described for supporting the reverse gear (5) radially
Reverse gear limiting section is set between the reverse gear (5) and reverse gear end face bearing (35), the reverse gear limit
Position portion is used to limit the axial movement of the reverse gear (5).
7. seven gears double-clutch speed changer according to claim 6, which is characterized in that the reverse gear axle sleeve (34) is L
Type, the reverse gear support portion are mutually perpendicular to reverse gear limiting section.
8. seven gears double-clutch speed changer according to claim 6, which is characterized in that the reverse gear support portion is in radial direction
On be additionally provided with perforative oil guiding hole, one end of the oil guiding hole is connected to described 3/ and reverses gear needle bearing (32), the oil guiding hole
The other end be connected to the bearing (33) that reverses gear.
9. seven gears double-clutch speed changer according to claim 6, which is characterized in that the reverse gear axle sleeve (34) is also wrapped
Reverse gear end face bearing support portion is included, reverse gear end face bearing support portion limits reverse gear end face bearing
Axial float, the reverse gear support portion are located at the reverse gear with reverse gear end face bearing support portion and limit respectively
The both sides in position portion.
10. seven gears double-clutch speed changer according to claim 1, which is characterized in that the tooth hub of the reverse gear synchronizer (6)
By spline or welded connection on the reverse gear (5).
11. seven gears double-clutch speed changer according to claim 1, which is characterized in that the forward gear synchronizing device includes:
It is arranged on first output shaft (15) and is kept off between driven gear (19) and 4 gear driven gears (23) positioned at described 2
2/4 gear synchronizer (20), the 2/4 gear synchronizer (20) is for controlling the 2 gear driven gear (19) and described first defeated
The engagement and separation of shaft (15) and engagements for controlling 4 gear driven gear (23) and first output shaft (15)
And separation;
It is arranged on first output shaft (15) and is kept off between driven gear (18) and 5 gear driven gears (16) positioned at described 1
1/5 gear synchronizer (17), the 1/5 gear synchronizer (17) is for controlling the 1 gear driven gear (18) and described first defeated
The engagement and separation of shaft (15) and for control the 5 gear driven gear (16) and the engagement of the first output shaft (15) and point
From;
It is arranged on second output shaft (9) and 6 gears kept off between driven gear (3) and reverse gear (5) positioned at described 6 is same
Walk device (4), the 6 gear synchronizer (4) be used to control the 6 gear driven gear (3) and the engagement of second output shaft (9) and
Separation;
It is arranged on second output shaft (9) and is kept off between driven gear (7) and 7 gear driven gears (10) positioned at described 3
3/7 gear synchronizer (8), the 3/7 gear synchronizer (8) is for controlling the 3 gear driven gear (7) and second output shaft
(9) engagement and separation and the engagement for controlling the 7 gear driven gear (10) and second output shaft (9) and point
From.
12. seven gears double-clutch speed changer according to claim 11, which is characterized in that the 2/4 gear synchronizer (20)
The tooth hub of tooth hub and 1/5 gear synchronizer (17) is connected to by spline on first output shaft (15), the 6 gear synchronizer
(4) tooth hub and 3/7 gear synchronizer (8) tooth hub is connected to by spline on second output shaft (9).
13. seven gears double-clutch speed changer according to claim 1, which is characterized in that the 4/6 gear driving gear (26), 4
It keeps off driven gear (23) and 6 gear driven gears (3) forms co-planar gear set, the 2 gear driving gear (25), 2 gear driven gears
(19) and reverse gear (5) formed co-planar gear set, it is described 5/7 gear driving gear (13), 5 gear driven gears (16) and 7 gear from
Moving gear (10) forms co-planar gear set.
14. it is according to claim 1 seven gear double-clutch speed changer, which is characterized in that on first output shaft (15) to
Direction far from power source (27) is disposed with the first final gear (24), is moved to separate on second output shaft (9)
The direction in power source (27) is disposed with the second final gear (2), first final gear (24) is fixed on described
On one output shaft (15), second final gear (2) is fixed on second output shaft (9), the first main deceleration
It gear (24) and the second final gear (2) while being engaged with the gear ring (22) of differential mechanism (21), first final gear
(24), the gear ring (22) of the second final gear (2) and differential mechanism (21) forms co-planar gear set.
15. it is according to claim 1 seven gear double-clutch speed changer, which is characterized in that it is described 4/6 gear driving gear (26) and
2 gear driving gears (25) are fixed on institute in such a way that welding, spline connection, interference are pressed or are directly integrally generated on axis
It states on outer input shaft (1);
The 1 gear driving gear (11), 3 gear driving gears (12) and 5/7 gear driving gear (13) are by welding, spline connects,
The mode that interference is pressed or is directly integrally generated on axis is fixed on the interior input shaft (14).
16. a kind of vehicle, which is characterized in that including seven gear double-clutch speed changers described in claim 1-15 any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820481170.XU CN207999480U (en) | 2018-03-30 | 2018-03-30 | Seven gear double-clutch speed changers and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820481170.XU CN207999480U (en) | 2018-03-30 | 2018-03-30 | Seven gear double-clutch speed changers and vehicle |
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| CN207999480U true CN207999480U (en) | 2018-10-23 |
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| WO2019184145A1 (en) * | 2018-03-30 | 2019-10-03 | 广州汽车集团股份有限公司 | Seven-gear dual clutch transmission and vehicle |
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