Utility model content
The technical problem to be solved by the utility model is to needing to be arranged additional fall for existing double-clutch speed changer
Gear shaft, the transmission path that reverses gear are complicated and gear engagement quantity is more, are unfavorable for lacking for the compactedness requirement of speed changer space layout
It falls into, the driving device that its power flow structure that reverses gear of the double-clutch speed changer of the utility model can be adapted for outer input shaft can only be real
A kind of device of existing direction of rotation, cost is lower, designs more compact.
The utility model embodiment provides a kind of double-clutch speed changer, comprising:
Coaxial nested interior input shaft and outer input shaft is fixed with a gear from close to power source one end on the interior input shaft
Driving gear, three gear driving gears and five or seven keep off driving gears, are fixed with four from close to power source one end on the outer input shaft
Six gear driving gears and two gear driving gear;
First clutch, the first clutch are connected with the interior input shaft;
Second clutch, the second clutch are connected with the outer input shaft;
First output shaft, be set with from close to power source one end on first output shaft four gear driven gears with six keep off from
One of moving gear, second gear driven gear, a gear driven gear and five gear driven gears and seven gear driven gears are wherein
One of;
Second output shaft, be set with from close to power source one end on second output shaft four gear driven gears with six keep off from
The wherein another of moving gear, reverse gear component, three gear driven gears and five gear driven gears and seven gear driven gears are wherein
Another, which includes reverse gear synchronizer and reverse gear, which is fixedly connected with the reverse gear;
Wherein, which engages with the gear driven gear;The second gear driven gear simultaneously with second gear master
Moving gear and reverse gear engagement, the two gear driving gear are not engaged with the reverse gear;This three gear driving gear and this three
Keep off driven gear engagement;Four or the six gear driving gear is engaged with the four gear driven gear and the six gears driven gear simultaneously;This five
Seven gear driving gears are engaged with the five gear driven gear and the seven gears driven gear simultaneously;The reverse gear component and this three gear from
Moving gear is designed to changeable dual gear structure, which can engage with the three gears driven gear, the tooth that reverses gear
Wheel assembly can rotate when engaging with the three gears driven gear together about second output shaft.
In one embodiment, the reverse gear synchronizer with this three gear driven gear engage when, the reverse gear component with this three
Gear driven gear is bonded into duplex toothing that is relatively unrotatable but can rotating together about second output shaft.
In one embodiment, the power to reverse gear is successively via the second clutch, the outer input shaft, the second gear driving tooth
Wheel, the second gear driven gear, the reverse gear, the reverse gear synchronizer, the three gears driven gear, the three gears driving gear, this is interior
Input shaft, gear driving gear, a gear driven gear and first output shaft are transferred to output end.
In one embodiment, on first output shaft, which exists the five gears driven gear empty set
On second output shaft, the power to reverse gear successively via the second clutch, the outer input shaft, the two gear driving gear, this two
Keep off driven gear, the reverse gear, the reverse gear synchronizer, this three gear driven gear, this three gear driving gear, the interior input shaft,
Five or seven gear driving gear, the five gear driven gear and first output shaft are transferred to output end.
In one embodiment, on first output shaft, which exists the seven gears driven gear empty set
On second output shaft, the power to reverse gear successively via the second clutch, the outer input shaft, the two gear driving gear, this two
Keep off driven gear, the reverse gear, the reverse gear synchronizer, this three gear driven gear, this three gear driving gear, the interior input shaft,
Five or seven gear driving gear, the seven gear driven gear and first output shaft are transferred to output end.
In one embodiment, which further includes supporting sleeve, and the reverse gear component and the three gears driven gear are logical
It crosses the supporting sleeve to be mounted on second output shaft, which is set on second output shaft and can be second defeated around this
Shaft rotates freely, which is set on the supporting sleeve with the three gears driven gear and can be around the supporting sleeve
It rotates freely.
In one embodiment, the reverse gear component and the three gears driven gear radial support, should on the supporting sleeve
Three gear driven gears radially toward second output shaft protrusion forms bulge loop, the bulge loop be resisted against the supporting sleeve far from should fall
The end of gear assembly is kept off, is formed with gap between the reverse gear component and the three gears driven gear.
The utility model embodiment also provides a kind of double-clutch speed changer, comprising:
Coaxial nested interior input shaft and outer input shaft is fixed with a gear from close to power source one end on the interior input shaft
Driving gear, five gear driving gears and Radix Notoginseng keep off driving gear, are fixed with four from close to power source one end on the outer input shaft
Six gear driving gears and two gear driving gear;
First clutch, the first clutch are connected with the interior input shaft;
Second clutch, the second clutch are connected with the outer input shaft;
First output shaft, be set with from close to power source one end on first output shaft four gear driven gears with six keep off from
One of moving gear, second gear driven gear, a gear driven gear and three gear driven gears and seven gear driven gears are wherein
One of;
Second output shaft, be set with from close to power source one end on second output shaft four gear driven gears with six keep off from
The wherein another of moving gear, reverse gear component, five gear driven gears and three gear driven gears and seven gear driven gears are wherein
Another, which includes reverse gear synchronizer and reverse gear, which is fixedly connected with the reverse gear;
Wherein, which engages with the gear driven gear;The second gear driven gear simultaneously with second gear master
Moving gear and reverse gear engagement, the two gear driving gear are not engaged with the reverse gear;The Radix Notoginseng keeps off driving gear simultaneously
It is engaged with the three gear driven gear and the seven gears driven gear;This four or six gear driving gear simultaneously with this four gear driven gear and should
Six gear driven gear engagements;The five gear driving gear is engaged with the five gears driven gear;The reverse gear component and this five gear from
Moving gear is designed to changeable dual gear structure, which can engage with the five gears driven gear, the tooth that reverses gear
Wheel assembly can rotate when engaging with the five gears driven gear together about second output shaft.
In one embodiment, the reverse gear synchronizer with this five gear driven gear engage when, the reverse gear component with this five
Gear driven gear is bonded into duplex toothing that is relatively unrotatable but can rotating together about second output shaft.
In one embodiment, the power to reverse gear via the second clutch, the outer input shaft, the two gear driving gear, should
Second gear driven gear, the reverse gear, the reverse gear synchronizer, the five gears driven gear, five the gears driving gear, the interior input
Axis, gear driving gear, a gear driven gear and first output shaft are transferred to output end.
In one embodiment, on first output shaft, which exists the three gears driven gear empty set
On second output shaft, the power that reverses gear via the second clutch, the outer input shaft, the two gear driving gear, the second gear from
Moving gear, the reverse gear, the reverse gear synchronizer, this five gear driven gear, this five gear driving gear, the interior input shaft, this three
Seven gear driving gears, the three gear driven gear and first output shaft are transferred to output end.
In one embodiment, on first output shaft, which exists the seven gears driven gear empty set
On second output shaft, the power that reverses gear via the second clutch, the outer input shaft, the two gear driving gear, the second gear from
Moving gear, the reverse gear, the reverse gear synchronizer, this five gear driven gear, this five gear driving gear, the interior input shaft, this three
Seven gear driving gears, the seven gear driven gear and first output shaft are transferred to output end.
In one embodiment, which further includes supporting sleeve, and the reverse gear component and the five gears driven gear are logical
It crosses the supporting sleeve to be mounted on second output shaft, which is set on second output shaft and can be second defeated around this
Shaft rotates freely, which is set on the supporting sleeve with the five gears driven gear and can be around the supporting sleeve
It rotates freely.
In one embodiment, the reverse gear component and the five gears driven gear radial support, should on the supporting sleeve
Five gear driven gears radially toward second output shaft protrusion forms bulge loop, the bulge loop be resisted against the supporting sleeve far from should fall
It keeps off on the end of gear assembly, is formed with gap between the reverse gear component and the five gears driven gear.
In the embodiments of the present invention, one is kept off and reverses gear respectively using first clutch and second clutch, and neutral gear rises
When step, can simultaneously pre-hung one gear and reverse gear, improved the response speed of step gear shifting.
In the embodiments of the present invention, three gear driven gears or five gear driven gears and reverse gear component are designed to can
The dual gear structure of switching, reverse gear are engaged with second gear driven gear, and reverse gear is not engaged with two gear driving gear, are led to
It crosses reverse gear synchronizer to engage with the driven gear adjoined, realizes the power to reverse gear via outer input shaft, two gear driving gear, second gear
Driven gear, reverse gear component, three gear gear pairs, interior input shaft and first gear secondary (or five gear gear pairs or seven gear gears
It is secondary) it is transmitted, or the power to reverse gear is via outer input shaft, two gear driving gear, second gear driven gear, reverse gear group
Part, five gear gear pairs, interior input shaft and first gear secondary (or three gear gear pairs or seven gear gear pairs) are transmitted, sufficiently benefit
The power that reverses gear is transmitted with original two output shafts, eliminates reverse gear shaft, conducive to the lightweight of speed changer, is conducive to shift and executes
The assembly of the arrangement of mechanism and entire transmission system.
In the embodiments of the present invention, three gear driven gears or five gear driven gears and reverse gear component are designed to can
The dual gear structure of switching, three gear driven gears or five gear driven gears with gap empty set on supporting sleeve, and can from
It is rotated by ground around bearing support, does not need interference press fitting connection, simplify assembly technology.
In the embodiments of the present invention, two reverse gear a shared driven gear, and four or six keep off and share a driving gear, and five
Seven gears (or Radix Notoginseng gear) share a driving gear, reduce the axial length of speed changer, make the overall structure of speed changer more
Compact, arrangement is more reasonable.
In the embodiments of the present invention, parking gear is mounted on the parking axis of independent design, is conducive to adjustment and is stayed dynamic speed
Than, and compared to parking gear is placed on output shaft for, further reduce the axial length of speed changer.
In the embodiments of the present invention, since axial length dimension is obviously shortened, before identical overall dimensions
Settable seven forward gears are put, gear range is made to become larger, transmission ratio distribution is more reasonable, and then significantly improves the dynamic of vehicle
Power performance and vehicle class.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial 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.
The utility model provides a kind of double-clutch speed changer, especially a kind of to be applied to preceding horizontal power source, forerunner's car
Double-clutch speed changer, the axial length of the speed changer is small, and overcomes in existing speed changer a gear and use of reversing gear is same
It clutch and the shortcomings that need to carrying out power transmitting by reverse gear shaft of reversing gear, while overcoming reversing gear for existing speed changer and transmitting road
Line is complicated, needs the additional defect for connecting driving device.To keep the purpose of this utility model, technical solution and advantage more clear
Chu is further described the utility model embodiment below in conjunction with attached drawing.
As shown in Figure 1, the double-clutch speed changer that the utility model first embodiment provides, comprising:
Interior input shaft 1, outer input shaft 2, the second output shaft 3, the second final gear 4, six gear gear of driven gear 5, six are same
Walk device 6, reverse gear component 7, three keeps off driven gear 8, Radix Notoginseng gear synchronizer 9, seven keeps off driven gear 10,57 and keeps off driving gear
11, three gear driving gears 12, one keep off driving gear 13, two gear driving gear 14, five keeps off driven gear 15, the First Five-Year Plan keeps off synchronizer
16, a gear driven gear 17, second gear driven gear 18,24 keep off synchronizer 19, four and keep off driven gear 20, differential mechanism 21, parking
Gear 22, parking axis 23, third final gear 24, differential mechanism gear ring 25, the first final gear 26, the first output shaft 27,
Four or six gear driving gears 28, second clutch 29, first clutch 30, supporting sleeve 31, reverse gear synchronizer 71 and reverse gear
72。
Interior input shaft 1 is connected with the coaxial nested setting of outer input shaft 2, first clutch 30 with interior input shaft 1, the second clutch
Device 29 is connected with outer input shaft 2.A gear driving gear 13, three gear master is fixed on interior input shaft 1 from close to power source one end
Moving gear 12 and five or seven keeps off driving gear 11.Four or six gear driving gears are fixed on outer input shaft 2 from close to power source one end
28 and two gear driving gear 14.Four gear driven gears 20, second gear are set with from close to power source one end on first output shaft 27
Driven gear 18, one keeps off driven gear 17 and five gear driven gears 15.From the empty set close to power source one end on second output shaft 3
There are six gear driven gears 5, reverse gear component 7, three to keep off driven gear 8 and seven gear driven gears 10.
Reverse gear component 7 includes reverse gear synchronizer 71 and reverse gear 72, and reverse gear synchronizer 71 and reverse gear 72 are logical
It crosses wheel hub to be fixed together, second gear driven gear 18 is engaged with two gear driving gear 14 and reverse gear 72 simultaneously, second gear
Driving gear 14 is not engaged with reverse gear 72.Reverse gear synchronizer 71 adjoins the setting of three gear driven gears 8, and reverse gear synchronizer 71
It can be engaged with three gear driven gears 8, reverse gear component 7 and three gear driven gears 8 are designed to be able to the duplicate gear being switched
Structure.When reverse gear component 7 is not engaged with three gear driven gears 8, reverse gear component 7 can phase with three gear driven gears 8
It can respectively rotate to rotation and around the second output shaft 3;When reverse gear component 7 and three gear driven gears 8 are bonded together,
It is relatively unrotatable but can rotate together about the second output shaft 3 that gear gear assembly 7 with three keeps off driven gears 8.
The driving gear of various gears is engaged with corresponding driven gear.In the present embodiment, a gear driving gear 13 and a gear
Driven gear 17 engages;Second gear driven gear 18 is engaged with two gear driving gear 14 and reverse gear 72 simultaneously, second gear with reverse gear
The same driven gear i.e. second gear driven gear 18 is shared, two gear driving gear 14 is not engaged with reverse gear 72;Three gears are actively
Gear 12 is engaged with three gear driven gears 8;Four or six gear driving gears 28 keep off driven gears 5 with four gear driven gears 20 and six simultaneously
Engagement, four gears share the same driving gear i.e. 46 with six gears and keep off driving gear 28;Five or seven gear driving gears 11 are simultaneously with five
It keeps off driven gear 15 and seven gear driven gears 10 engages, five gears share the same driving gear i.e. 57 with seven gears and keep off driving gear
11.By shared driving gear or driven gear, the axial arrangement space of transmission gear can be effectively saved, thus
Shorten the axial length of speed changer.
In the present embodiment, two or four gear synchronizers 19 and First Five-Year Plan gear synchronizer 16 are arranged on the first output shaft 27, wherein two
Four gear synchronizers 19 are located between four gear driven gears 20 and second gear driven gear 18, and it is driven positioned at a gear that the First Five-Year Plan keeps off synchronizer 16
Between gear 17 and five gear driven gears 15.Six gear synchronizers 6 and Radix Notoginseng gear synchronizer 9 are arranged on the second output shaft 3, wherein
Six gear synchronizers 6 are located between six gear driven gears 5 and reverse gear component 7, and Radix Notoginseng keeps off synchronizer 9 and is located at three gear driven gears
8 and seven keep off between driven gear 10.
In the present embodiment, which includes five axis, is respectively as follows: interior input shaft 1, outer input shaft 2, the first output shaft
27, the second output shaft 3 and parking axis 23, five axis are arranged parallel.First final gear 26 is fixed on the first output shaft
On 27 and it is located at the first output shaft 27 close to one end of power source, the second final gear 4 is fixed on the second output shaft 3 and position
In the second output shaft 3 close to one end of power source.Preferably, the design of parking axis 23 is independent an axis, on parking axis 23 from
It is risen close to power source one end and is fixed with third final gear 24 and parking gear 22.Differential mechanism gear ring 25 is exported with first simultaneously
The third master on the second final gear 4 and parking axis 23 on the first final gear 26, the second output shaft 3 on axis 27 subtracts
Fast gear 24 engages.By the way that parking gear 22 to be mounted on independent parking axis 23, conducive to the adjustment of parking speed ratio, and shorten
The axial length of double-clutch speed changer.
In the present embodiment, outer input shaft 2 be hollow shaft, outer input shaft 2 be nested on interior input shaft 1 and with interior input shaft 1
Coaxially.
Further, which further includes supporting sleeve 31, and reverse gear component 7 and three gear driven gears 8 pass through branch
It holds axle sleeve 31 to be mounted on the second output shaft 3, supporting sleeve 31 is set on the second output shaft 3 and can be around the second output shaft 3
It rotates freely, and reverse gear component 7 and three gear driven gears 8 are set on supporting sleeve 31 and can be around supporting sleeves 31 certainly
By rotating.When speed changer operates in three gears, there is very big rotational speed difference between three gear driven gears 8 and reverse gear component 7,
Due to the presence of supporting sleeve 31, damage of this rotational speed difference to three gear driven gears 8 and reverse gear component 7 can be eliminated.
Fig. 2 is the partial enlargement structural representation of supporting sleeve in the utility model embodiment, incorporated by reference to Fig. 2, reverse gear component 7 with
Three gear 8 radial supports of driven gear are on supporting sleeve 31, and three gear driven gears 8 are radially toward the prominent shape of the second output shaft 3
At bulge loop 81, bulge loop 81 is resisted against on left part of the supporting sleeve 31 far from reverse gear component 7, reverse gear component 7 and three
It is formed with gap 32 between gear driven gear 8, so that reverse gear component 7 and three be avoided to keep off driven gear 8 because high rotational speed difference produces
Raw damage.
In the present embodiment, when first clutch 30 is closed, pass through the power of odd number gear (one three five seven gear) transmitting power source;
When second clutch 29 is closed, keeps off (2 46 gear) by even number and reverse gear and transmit the power of power source.The speed change of the present embodiment
Respectively gear power transmission is as follows at work for device:
One gear power transmission route: first clutch 30 is closed, and the First Five-Year Plan keeps off synchronizer 16 and engages with a gear driven gear 17,
Power driving source keeps off driven gear 17 through interior input shaft 1, one gear driving gear 13, one, the First Five-Year Plan keeps off synchronizer 16, the first output shaft
27, the first final gear 26 and differential mechanism 21 transmit, and realize a gear.
Second gear power transmission route: second clutch 29 is closed, and two or four gear synchronizers 19 are engaged with second gear driven gear 18,
Power driving source keeps off synchronizer 19, the first output shaft through outer input shaft 2, two gear driving gear 14, second gear driven gear 18,24
27, the first final gear 26 and differential mechanism 21 transmit, and realize second gear.
Three gear power transmission routes: first clutch 30 is closed, and Radix Notoginseng keeps off synchronizer 9 and engages with three gear driven gears 8, is moved
Power driving source keeps off driven gear 8, Radix Notoginseng gear synchronizer 9, the second output shaft 3, the through interior input shaft 1, three gear driving gear 12, three
Two final gears 4 and differential mechanism 21 transmit, and realize three gears.
Four gear power transmission routes: second clutch 29 is closed, and two or four gear synchronizers 19 are engaged with four gear driven gears 20,
Power driving source keeps off driven gear 20,24 through outer input shaft 2,46 gear driving gear 28, four and keeps off the output of synchronizer 19, first
Axis 27, the first final gear 26 and differential mechanism 21 transmit, and realize four gears.
Five gear power transmission routes: first clutch 30 is closed, and the First Five-Year Plan keeps off synchronizer 16 and engages with five gear driven gears 15,
Power driving source keeps off driven gear 15 through interior input shaft 1,57 gear driving gear 11, five, First Five-Year Plan gear synchronizer 16, first exports
Axis 27, the first final gear 26 and differential mechanism 21 transmit, and realize five gears.
Six gear power transmission routes: second clutch 29 is closed, and six gear synchronizers 6 are engaged with six gear driven gears 5, power
Driving source keeps off driven gear 5, six through outer input shaft 2,46 gear driving gear 28, six and keeps off synchronizer 6, the second output shaft 3, second
Final gear 4 and differential mechanism 21 transmit, and realize six gears.
Seven gear power transmission routes: first clutch 30 is closed, and Radix Notoginseng keeps off synchronizer 9 and engages with seven gear driven gears 10,
Power driving source keeps off driven gear 10 through interior input shaft 1,57 gear driving gear 11, seven, Radix Notoginseng gear synchronizer 9, second exports
Axis 3, the second final gear 4 and differential mechanism 21 transmit, and realize seven gears.
Power transmission of reversing gear route: second clutch 29 is closed, and reverse gear synchronizer 71 is engaged with three gear driven gears 8, is made
Reverse gear component 7 and three gear driven gears 8 are bonded into duplex that is relatively unrotatable but can rotating together about the second output shaft 3
Toothing keeps off synchronizer 16 by the First Five-Year Plan and keeps off driven gear 17 with one engaging, and the power to reverse gear is via second clutch 29, outer defeated
Enter axis 2, two gear driving gear 14, second gear driven gear 18, reverse gear 72, reverse gear synchronizer 71, three and keeps off driven gear 8, three
Keep off driving gear 12, interior input shaft 1, one keeps off driving gear 13, one and keeps off driven gear 17, First Five-Year Plan gear synchronizer 16, first output
Axis 27, the first final gear 26 and differential mechanism 21 are transmitted, and realization is reversed gear.
Alternatively, the power transmission route that reverses gear: second clutch 29 is closed, and reverse gear synchronizer 71 connects with three gear driven gears 8
It closes, reverse gear component 7 and three gear driven gears 8 is made to be bonded into relatively unrotatable but can rotate together about the second output shaft 3
Duplex toothing, by the First Five-Year Plan keep off synchronizer 16 with five keep off driven gears 15 engage, the power to reverse gear is via second clutch
29, outer input shaft 2, two gear driving gear 14, second gear driven gear 18, reverse gear 72, reverse gear synchronizer 71, three keep off driven tooth
8, three gear driving gear 12 of wheel, interior input shaft 1,57 keep off the gear of driving gear 11, five driven gear 15, the First Five-Year Plan keeps off synchronizer 16,
First output shaft 27, the first final gear 26 and differential mechanism 21 are transmitted, and realization is reversed gear.
When the manipulation halting mechanism (not shown) limitation rotation of parking gear 22, pass through parking gear 22, parking axis 23, third
Final gear 24, differential mechanism gear ring 25 and differential mechanism 21 realize parking.
It is to be appreciated that setting can be interchanged in four gear driven gears 20 and six gear driven gears 5, driven tooth also is kept off by four
20 empty sets are taken turns on the second output shaft 3, by six gear 5 empty sets of driven gear on the first output shaft 27.That is, four gears are driven
For one of gear 20 and six gear driven gears 5 empty set on the first output shaft 27, four gear driven gears 20 and six gears are driven
Wherein another empty set of gear 5 is on the second output shaft 3.
It is to be appreciated that setting can be interchanged in five gear driven gears 15 and seven gear driven gears 10, it is also i.e. that five gears are driven
15 empty set of gear is on the second output shaft 3, by seven gear 10 empty sets of driven gear on the first output shaft 27.That is, five gears
One of driven gear 15 and seven gear driven gears 10 empty set are on the first output shaft 27, five gear driven gears 15 and seven gears
Wherein another empty set of driven gear 10 is on the second output shaft 3.
In an alternate embodiment, when seven gear 10 empty sets of driven gear are on the first output shaft 27, five gear driven gears 15 are empty
It covers when on the second output shaft 3, power transmission of reversing gear route can be with are as follows: second clutch 29 is closed, reverse gear synchronizer 71 and three
It keeps off driven gear 8 to engage, is bonded into reverse gear component 7 and three gear driven gears 8 relatively unrotatable but can be together about the
Two output shafts 3 rotation duplex toothing, by one or seven gear synchronizers with seven keep off driven gears 10 engage, the power to reverse gear via
Second clutch 29, outer input shaft 2, two gear driving gear 14, second gear driven gear 18, reverse gear 72, reverse gear synchronizer 71,
Three gear driven gears 8, three keep off driving gear 12, interior input shaft 1,57 keeps off driving gear 11, seven and keeps off the gear of driven gear 10,1
Synchronizer, the first output shaft 27, the first final gear 26 and differential mechanism 21 are transmitted, and realization is reversed gear.
Second embodiment
Fig. 3 is the structural schematic diagram of the double-clutch speed changer of the utility model second embodiment, please join Fig. 3, the present embodiment
Speed changer and first embodiment speed changer difference be three gears with five gear exchanged, therefore, on interior input shaft 1 from
It is risen close to power source one end and is fixed with a gear driving gear 13, five gear driving gear 33 and Radix Notoginseng gear driving gear 34, outer input
From being fixed with four or six gear driving gears 28 and two gear driving gear 14 close to power source one end on axis 2, on the first output shaft 27
From four gear driven gears 20 are set with close to power source one end, second gear driven gear 18, one keeps off driven gear 17 and three gears from
Moving gear 8 is set with six gear driven gears 5 on second output shaft 3 from close to power source one end, reverse gear component 7, five is kept off
Driven gear 15 and seven gear driven gears 10.
Reverse gear component 7 includes reverse gear synchronizer 71 and reverse gear 72, and reverse gear synchronizer 71 and reverse gear 72 are logical
It crosses wheel hub to be fixed together, second gear driven gear 18 is engaged with two gear driving gear 14 and reverse gear 72 simultaneously, second gear
Driving gear 14 is not engaged with reverse gear 72.Reverse gear synchronizer 71 adjoins the setting of five gear driven gears 15, and reverse gear synchronizer
71 can engage with five gear driven gears 15, and reverse gear component 7 and five gear driven gears 15 are designed to be able to the duplex being switched
Gear structure.When reverse gear component 7 is not engaged with five gear driven gears 15, reverse gear component 7 and five gear driven gears
15 can relatively rotate and can respectively rotate around the second output shaft 3;When reverse gear component 7 and five gear driven gears 15 are bonded on one
When rising, it is relatively unrotatable but can rotate together about the second output shaft 3 that reverse gear component 7 with five keeps off driven gears 15.
In the present embodiment, a gear driving gear 13 is engaged with a gear driven gear 17;Second gear driven gear 18 is simultaneously with two
It keeps off driving gear 14 and reverse gear 72 to engage, second gear and reverses gear and share the same driven gear i.e. second gear driven gear 18, two
Gear driving gear 14 is not engaged with reverse gear 72;It is driven with three gear driven gears 8 and seven gears simultaneously that Radix Notoginseng keeps off driving gear 34
Gear 10 engages, and three gears share the same driving gear i.e. Radix Notoginseng gear driving gear 34 with seven gears;Four or six gear driving gears 28 are same
Shi Yusi keeps off driven gear 20 and six gear driven gears 5 engage, and four gears share the gear of the same driving gear i.e. 46 with six gears and lead
Moving gear 28;Five gear driving gears 33 are engaged with five gear driven gears 15.By sharing driving gear or driven gear, Ke Yiyou
The axial arrangement space of the saving transmission gear of effect, so as to shorten the axial length of speed changer.
In the present embodiment, it is disposed with two or four gear synchronizers 19 and one or three on the first output shaft 27 and keeps off synchronizer 35, wherein two
Four gear synchronizers 19 are located between four gear driven gears 20 and second gear driven gear 18, and it is driven that one or three gear synchronizers 35 are located at a gear
Between gear 17 and three gear driven gears 8.Six gear synchronizers 6 and five or seven gear synchronizer 36 is disposed on second output shaft 3, wherein
Six gear synchronizers 6 are located between six gear driven gears 5 and reverse gear component 7, and five or seven gear synchronizers 36 are located at five gear driven tooths
Between wheel 15 and seven gear driven gears 10.
Further, which further includes supporting sleeve 31, and reverse gear component 7 and five gear driven gears 15 pass through branch
It holds axle sleeve 31 to be mounted on the second output shaft 3, supporting sleeve 31 is set on the second output shaft 3 and can be around the second output shaft 3
It rotates freely, and reverse gear component 7 and five gear driven gears 15 are set on supporting sleeve 31 and can be around supporting sleeves 31
It rotates freely.When speed changer operates in five gears, five gear driven gears 15 and reverse gear component 7 have very big rotational speed difference,
Due to the presence of supporting sleeve 31, damage of this rotational speed difference to five gear driven gears 15 and reverse gear component 7 can be eliminated.
Specifically, reverse gear component 7 and five gear 15 radial supports of driven gear are on supporting sleeve 31, and five gear driven gears 15 are along diameter
Bulge loop is formed to towards the second output shaft 3 is prominent, bulge loop is resisted against left part of the supporting sleeve 31 far from reverse gear component 7
On, reverse gear component 7 and five gear driven gears 15 between be formed with gap, thus avoid reverse gear component 7 with five gears from
The damage that moving gear 15 is generated by high rotational speed difference.
In the present embodiment, when first clutch 30 is closed, pass through the power of odd number gear (one three five seven gear) transmitting power source;
When second clutch 29 is closed, keeps off (2 46 gear) by even number and reverse gear and transmit the power of power source.The speed change of the present embodiment
Respectively gear power transmission is as follows at work for device:
One gear power transmission route: first clutch 30 is closed, and one or three gear synchronizers 35 are engaged with a gear driven gear 17,
Power driving source keeps off driven gear 17,1 through interior input shaft 1, one gear driving gear 13, one and keeps off synchronizer 35, the first output shaft
27, the first final gear 26 and differential mechanism 21 transmit, and realize a gear.
Second gear power transmission route: second clutch 29 is closed, and two or four gear synchronizers 19 are engaged with second gear driven gear 18,
Power driving source through outer input shaft 2, two reverse gear driving gear 14, second gear driven gear 18,24 keep off synchronizer 19, first export
Axis 27, the first final gear 26 and differential mechanism 21 transmit, and realize second gear.
Three gear power transmission routes: first clutch 30 is closed, and one or three gear synchronizers 35 are engaged with three gear driven gears 8,
Power driving source keeps off driven gear 8,1 through interior input shaft 1, Radix Notoginseng gear driving gear 34, three and keeps off the output of synchronizer 35, first
Axis 27, the first final gear 26 and differential mechanism 21 transmit, and realize three gears.
Four gear power transmission routes: second clutch 29 is closed, and two or four gear synchronizers 19 are engaged with four gear driven gears 20,
Power driving source keeps off driven gear 20,24 through outer input shaft 2,46 gear driving gear 28, four and keeps off the output of synchronizer 19, first
Axis 27, the first final gear 26 and differential mechanism 21 transmit, and realize four gears.
Five gear power transmission routes: first clutch 30 is closed, and five or seven gear synchronizers 36 are engaged with five gear driven gears 15,
Power driving source keeps off driven gear 15,57 through interior input shaft 1, five gear driving gear 33, five and keeps off synchronizer 36, the second output shaft
3, the second final gear 4 and differential mechanism 21 transmit, and realize five gears.
Six gear power transmission routes: second clutch 29 is closed, and six gear synchronizers 6 are engaged with six gear driven gears 5, power
Driving source keeps off driven gear 5, six through outer input shaft 2,46 gear driving gear 28, six and keeps off synchronizer 6, the second output shaft 3, second
Final gear 4 and differential mechanism 21 transmit, and realize six gears.
Seven gear power transmission routes: first clutch 30 is closed, and five or seven gear synchronizers 36 are engaged with seven gear driven gears 10,
Power driving source keeps off driven gear 10,57 through interior input shaft 1, Radix Notoginseng gear driving gear 34, seven and keeps off the output of synchronizer 36, second
Axis 3, the second final gear 4 and differential mechanism 21 transmit, and realize seven gears.
Power transmission of reversing gear route: second clutch 29 is closed, and reverse gear synchronizer 71 is engaged with five gear driven gears 15, is made
Reverse gear component 7 and five gear driven gears 15 are bonded into relatively unrotatable but can rotate together about the second output shaft 3 double
Join toothing, by one or three gear synchronizers 35 with one gear driven gear 17 engage, the power to reverse gear via second clutch 29, outside
Input shaft 2, two gear driving gear 14, second gear driven gear 18, reverse gear 72, reverse gear synchronizer 71, five keep off driven gear 15,
It is defeated that five gear driving gears 33, interior input shaft 1, one keep off the gear gear synchronizer 35, first of driven gear 17,1 of driving gear 13, one
Shaft 27, the first final gear 26 and differential mechanism 21 are transmitted, and realization is reversed gear.
Alternatively, the power transmission route that reverses gear: second clutch 29 is closed, and reverse gear synchronizer 71 connects with five gear driven gears 15
It closes, reverse gear component 7 and five gear driven gears 15 is made to be bonded into relatively unrotatable but can rotate together about the second output shaft 3
Duplex toothing, by one or three gear synchronizers 35 with three keep off driven gears 8 engage, the power to reverse gear is via second clutch
29, outer input shaft 2, two gear driving gear 14, second gear driven gear 18, reverse gear 72, reverse gear synchronizer 71, five keep off driven tooth
Wheel 15, five gear driving gears 33, interior input shaft 1, Radix Notoginseng gear driving gear 34, three keep off driven gear 8,1 keep off synchronizer 35,
First output shaft 27, the first final gear 26 and differential mechanism 21 are transmitted, and realization is reversed gear.
It is to be appreciated that setting can be interchanged in four gear driven gears 20 and six gear driven gears 5, driven tooth also is kept off by four
20 empty sets are taken turns on the second output shaft 3, by six gear 5 empty sets of driven gear on the first output shaft 27.That is, four gears are driven
For one of gear 20 and six gear driven gears 5 empty set on the first output shaft 27, four gear driven gears 20 and six gears are driven
Wherein another empty set of gear 5 is on the second output shaft 3.
It is to be appreciated that setting can be interchanged in three gear driven gears 8 and seven gear driven gears 10, driven tooth also is kept off by three
8 empty sets are taken turns on the second output shaft 3, by seven gear 10 empty sets of driven gear on the first output shaft 27.That is, three gears are driven
One of gear 8 and seven gear driven gears 10 empty set are on the first output shaft 27, three gear driven gears 8 and seven gear driven tooths
Wherein another empty set of wheel 10 is on the second output shaft 3.
In an alternate embodiment, when seven gear 10 empty sets of driven gear are on the first output shaft 27, three keep off 8 empty sets of driven gear
When on the second output shaft 3, power transmission of reversing gear route can be with are as follows: second clutch 29 is closed, and reverse gear synchronizer 71 is kept off with five
Driven gear 15 engages, and is bonded into reverse gear component 7 and five gear driven gears 15 relatively unrotatable but can be together about the
Two output shafts 3 rotation duplex toothing, by one or seven gear synchronizers with seven keep off driven gears 10 engage, the power to reverse gear via
Second clutch 29, outer input shaft 2, two gear driving gear 14, second gear driven gear 18, reverse gear 72, reverse gear synchronizer 71,
Five gear driven gears 15, five keep off driving gear 33, interior input shaft 1, Radix Notoginseng gear driving gear 34, seven and keep off driven gear 10,1
Gear synchronizer, the first output shaft 27, the first final gear 26 and differential mechanism 21 are transmitted, and realization is reversed gear.
The related description of above-mentioned first embodiment is referred to about the other structures and working principle of second embodiment,
This is repeated no more.
The double-clutch speed changer of the utility model embodiment, input shaft, two output shafts including two nested arrangements and
A piece parking axis, the speed changer reverse gear with seven forward gears and one, and odd number gear driving gear is arranged on interior input shaft, even
Number gear driving gear is arranged on outer input shaft, and two reverse gear shared driven gear, and four or six gears and five or seven gears (or Radix Notoginseng gear) are altogether
With driving gear, several driven gears are arranged on the first output shaft, reverse gear component and several driven gears arrangement
On the second output shaft, reverse gear component and the driven gear adjoined are designed to be able to the dual gear structure being switched.This
The double-clutch speed changer of embodiment has the advantages that
1, it one keeps off and reverses gear respectively using first clutch and second clutch, it, can pre-hung one simultaneously when neutral gear starts to walk
It keeps off and reverses gear, improved the response speed of step gear shifting.
2, three gear driven gears or five gear driven gears and reverse gear component are designed to changeable dual gear structure,
Reverse gear is engaged with second gear driven gear, and reverse gear is not engaged with two gear driving gear, by reverse gear synchronizer with adjoin
Driven gear engagement, realize the power to reverse gear via outer input shaft, two gear driving gear, second gear driven gear, reverse gear
Component, three gear gear pairs, interior input shaft and first gear secondary (or five gear gear pairs or seven gear gear pairs) are transmitted, or
The power to reverse gear is via outer input shaft, two gear driving gear, second gear driven gear, reverse gear component, five gear gear pairs, interior defeated
Enter axis and first gear secondary (or three gear gear pairs or seven gear gear pairs) is transmitted, takes full advantage of original two output
Axis transmits the power that reverses gear, and eliminates reverse gear shaft, conducive to the lightweight of speed changer, conducive to the arrangement and entire biography of gear shifting actuating mechanism
The assembly of dynamic system.
3, three gear driven gears or five gear driven gears and reverse gear component are designed to changeable dual gear structure,
Empty set and can rotate on supporting sleeve freely movable about bearing support with gap for three gear driven gears or five gear driven gears,
Interference press fitting connection is not needed, assembly technology is simplified.
4, it two reverses gear a shared driven gear, four or six keep off and share a driving gear, and five or seven gears (or Radix Notoginseng gear) share
One driving gear, reduces the axial length of speed changer, keeps the overall structure of speed changer more compact, arrangement more closes
Reason.
5, parking gear is mounted on the parking axis of independent design, is conducive to adjustment and is stayed dynamic speed ratio, and compared to by park tooth
For wheel is placed on output shaft, the axial length of speed changer is further reduced.
6, since axial length dimension is obviously shortened, settable seven advances under the premise of identical overall dimensions
Gear, makes gear range become larger, and transmission ratio distribution is more reasonable, and then significantly improves the power performance and vehicle gear of vehicle.
Herein, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, are removed
It comprising those of listed element, but also may include other elements that are not explicitly listed.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.