CN106553541B - Vehicle and transfer gear - Google Patents
Vehicle and transfer gear Download PDFInfo
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- CN106553541B CN106553541B CN201510621330.7A CN201510621330A CN106553541B CN 106553541 B CN106553541 B CN 106553541B CN 201510621330 A CN201510621330 A CN 201510621330A CN 106553541 B CN106553541 B CN 106553541B
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Abstract
The present invention relates to technical field of vehicle, are related to transfer gear and vehicle.Transfer gear includes: the planetary gear mechanism being assemblied on input shaft；Pass through the high to low gear tooth set being axially movable and two 4 wheel driven switching mechanisms of planetary gear mechanism transmission connection；Box of tricks includes rear output shaft sun gear and front output shaft sun gear and differential planetary wheel, the 4 wheel driven output state transmission connection of differential planetary wheel and two 4 wheel driven switching mechanisms；Preceding clutch component and rear clutch component, hub is sequentially connected in rear output shaft sun gear and preceding clutch, front output shaft sun gear can be sequentially connected with hub outside preceding clutch, front output shaft sun gear can be sequentially connected by power transfer mechanism and front output shaft, the outer hub of preceding clutch can be sequentially connected by power transfer mechanism and front output shaft, in this way, it is capable of providing multiple-working mode, it allows the vehicle to select different operating modes during normal driving according to different road conditions, more to adapt to various road conditions, it is more fuel-efficient, promote the reliability of vehicle.
Description
Technical field
The present invention relates to technical field of vehicle, in particular to a kind of transfer gear for vehicle and one kind have the transfer gear
Vehicle.
Background technique
Before 4 wheel driven SUV can be divided into the four-wheel drive system based on preposition forerunner (FF) and be based on according to the arrangement of engine at present
Postpone the four-wheel drive system of drive (FR).Full-time four-wheel drive, time sharing can be divided into from 4 wheel driven form based on the four-wheel drive system of FR and fitted
When 4 wheel driven.
A in practical applications, each four-wheel drive system has the advantage and disadvantage of oneself, specific as follows:
Full-time four-wheel drive have center differential, front and back simultaneously have torque when can be with differential, so as to reality
Existing front and back wheel presses the torque ratio output power of certain (or variation), since four wheels continue dynamic output, in pole
End operating condition can get rid of poverty, but oil consumption is high；
Excessive wear occurs in order to prevent for time sharing, is usually arranged as to turn to, and two 4 wheel drivens of time sharing
Control needs artificial manipulation, so the driving efficiency to driver is more demanding；
Two 4 wheel driven modes of in due course 4 wheel driven are completed by vehicle-mounted computer and onboard sensor, do not need artificially to control, and
And it is more fuel-efficient, but a disadvantage is that under extreme conditions, can not get rid of poverty.
In addition, the switching of the high to low gear of above-described three kinds of four-wheel drive systems usually require parking or lower speed under into
Otherwise row gear will occurs and beat tooth phenomenon, and generate abnormal sound, and influence the reliability of high to low gear switching.
Summary of the invention
In view of this, the present invention is directed to propose a kind of transfer gear allows the vehicle to basis to provide multiple-working mode
Different road conditions select different operating modes during normal driving, more fuel-efficient more to adapt to various road conditions, and promote vehicle can
By property.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of transfer gear, the transfer gear include: planetary gear mechanism, and the planetary gear mechanism is assemblied in input shaft
On, and there is high torque output state and low torque output state；Two 4 wheel driven switching mechanisms, the two 4 wheel drivens switching mechanism pass through
High to low gear tooth set and the planetary gear mechanism being axially movable are sequentially connected, and have 4 wheel driven output state and directly drive
The two of rear output shaft drive output state；Box of tricks, the box of tricks include rear output shaft sun gear and the front output shaft sun
The 4 wheel driven output state of wheel and differential planetary wheel, the differential planetary wheel and the two 4 wheel drivens switching mechanism, which is driven, to be connected
It connects；Preceding clutch component has hub in the outer hub of preceding clutch and preceding clutch；Clutch component afterwards has in rear clutch outer hub and rear clutch
Hub, it is described after in clutch hub be fixedly mounted on the rear output shaft, it is described after in the outer hub of clutch and the preceding clutch hub link；
Wherein, hub is sequentially connected in the rear output shaft sun gear and the preceding clutch, the front output shaft sun gear can with it is described
The outer hub transmission connection of preceding clutch, the front output shaft sun gear can be sequentially connected by power transfer mechanism and front output shaft,
The outer hub of the preceding clutch can be sequentially connected by the power transfer mechanism and the front output shaft.
Compared with the existing technology, in transfer gear of the present invention, by above technical solution, especially because differential
Hub is sequentially connected in the rear output shaft sun gear of mechanism and preceding clutch, and the front output shaft sun gear of box of tricks can pass through
Power transfer mechanism and front output shaft are sequentially connected to carry out power transmitting, and front output shaft sun gear can be passed with hub outside preceding clutch
To carry out power transmitting, the outer hub of preceding clutch can be sequentially connected by power transfer mechanism and front output shaft for dynamic connection, so as to
To provide the power output of multiple drive modes, comprising: normal highway mode (2H mode), automatic control mode (AUTO) mould
Formula, simple cross-country lockdown mode (4H LOCK mode), complicated off-road mode (4L mode), is answered at simple off-road mode (4H mode)
Miscellaneous cross-country lockdown mode (4L LOCK mode), snow field mode (snow mode 1-6) and climbing mode (one and two), so that
Vehicle can select during normal driving different operating modes according to different road conditions, carry out to the output of front and back torque corresponding
Control, it is more fuel-efficient more to adapt to various road conditions to realize the torque distribution of 100:0 to 0:100, promote the reliability of vehicle.With
The power output of upper each drive mode will then be described in detail.
Further, the planetary gear mechanism includes: the sun gear, planetary gear and gear ring being successively radially set with, institute
It states sun gear to be fixedly mounted on the input shaft, the planetary gear side has retainer conjunction gear；Sun gear combines
Tooth, the sun gear conjunction gear is fixedly mounted on the input shaft and the space of teeth in conjunction with the retainer；High to low gear is synchronous
Device, the high to low gear synchronizer are rotatably mounted on the input shaft and are located at the sun gear conjunction gear and the holding
Between frame conjunction gear, wherein high to low gear tooth set is engaged with the high to low gear synchronizer, and the high to low gear tooth set can be
Moved axially under the action of high to low gear shift fork and the high to low gear synchronizer driven to move axially, with the retainer conjunction gear
Engagement is in the high torque output state, or engages with the sun gear conjunction gear in the low torque output state.
Further, the two 4 wheel drivens switching mechanism is formed as clutch, and the clutch includes clutch outer hub, clutch
Two drive conjunction gear and clutch 4 wheel driven conjunction gear, wherein the outer hub of the clutch passes through two 4 wheel driven conjunction gears and the high to low gear tooth set
Transmission connection；The clutch two is driven conjunction gear and is fixedly mounted on the rear output shaft；The clutch 4 wheel driven conjunction gear passes through guarantor
The differential planetary wheel for holding frame and the box of tricks is sequentially connected.
Selectively, the two 4 wheel drivens switching mechanism is formed as gearshift, and the gearshift includes: that knot is driven in shift two
Tooth is closed, is fixedly mounted on the rear output shaft；Shift 4 wheel driven conjunction gear, passes through the difference of retainer and the box of tricks
Fast planet gear transmission connection；It shifts gears two 4 wheel driven tooth sets, covers and be sequentially connected with the high to low gear tooth；Shift synchronizer, rotationally
It is assemblied on the rear output shaft and is located at the shift two and drive between conjunction gear and the shift 4 wheel driven conjunction gear, wherein institute
Stating two 4 wheel driven tooth sets of shift can move axially under the action of selector fork and the shift synchronizer is driven to move axially, with
It is driven with the shift two and is combined tooth engagement, or the tooth engagement in conjunction with the shift 4 wheel driven.
Further, the power transfer mechanism includes: driving wheel, and the driving wheel can be with the front output shaft sun
Wheel is sequentially connected and/or can be sequentially connected with hub outside the preceding clutch；Driven wheel, the driven wheel are fixed on the preceding output
On axis；Transition piece, the transition piece are connected between the driving wheel and the driven wheel, by power from described
Driving wheel is transmitted to the driven wheel.
Further, the driving wheel and the driven wheel are formed as sprocket wheel, and the transition piece is formed as passing
Dynamic chain；Alternatively, the driving wheel and the driven wheel are formed as gear, and the transition piece is formed as intermediate gear.
Further, the transfer gear further includes having clutch control device, and the clutch control device includes: pressing plate, institute
The outer hub of rear clutch can be compressed by stating pressing plate, and be provided with elastic recoil part between hub in the rear clutch；It holds down assembly,
Described hold down assembly can drive the pressing plate to compress the outer hub of rear clutch, and make the elastic recoil part energy storage.
Further, described hold down assembly is formed as Hydraulic Conirol Unit, wherein the Hydraulic Conirol Unit includes liquid
The piston of cylinder pressure, the end face of the piston are formed with receiving hole, and steel ball and spring and steel ball, the steel are disposed in the receiving hole
Ball can contact the pressing plate.
In addition, the vehicle is provided with above-described transfer gear the present invention also provides a kind of vehicle.
In this way, as described above, transfer gear through the invention, with the control unit (ECU) of vehicle and corresponding sensing
Device and actuator cooperation, can select different operating modes during normal driving according to different road conditions, defeated to front and back torque
Carry out out with it is corresponding road conditions are corresponding controls, to realize that the torque of 100:0 to 0:100 distributes, more to adapt to various road conditions, more save
Oil promotes the reliability of vehicle.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the first theory structure schematic diagram of transfer gear described in the embodiment of the present invention；
Fig. 2 is that power of the transfer gear under normal highway mode (2H mode) transmits schematic diagram in Fig. 1；
Fig. 3 is that power of the transfer gear under automatic control mode (AUTO mode) transmits schematic diagram in Fig. 1；
Fig. 4 is transfer gear in Fig. 1 in simple off-road mode (4H mode) or simple cross-country lockdown mode (4H LOCK mode)
Or the power of the first snow field mode (snow mode 1) or climbing mode once transmits schematic diagram；
Fig. 5 is transfer gear in Fig. 1 in complicated off-road mode (4L mode) or complicated cross-country lockdown mode (4L LOCK mode)
Or the power under the 4th kind of snow field mode (snow mode 4) or climbing mode two transmits schematic diagram；
Fig. 6 is that power of the transfer gear under second of snow field mode (snow mode 2) transmits schematic diagram in Fig. 1；
Fig. 7 is that power of the transfer gear under the third snow field mode (snow mode 3) transmits schematic diagram in Fig. 1；
Fig. 8 is that power of the transfer gear under the 5th kind of snow field mode (snow mode 5) transmits schematic diagram in Fig. 1；
Fig. 9 is that power of the transfer gear under the 6th kind of snow field mode (snow mode 6) transmits schematic diagram in Fig. 1；
Figure 10 is second of theory structure schematic diagram of transfer gear described in the embodiment of the present invention, power transmitting and first
Kind transfer gear is similar.
Description of symbols:
1- transfer gear, 2- planetary gear mechanism, 3- input shaft, two 4 wheel driven switching mechanism of 4-, 5- high to low gear tooth set are defeated after 6-
Shaft, 7- box of tricks, 8- rear output shaft sun gear, 9- front output shaft sun gear, 10- differential planetary wheel, clutch group before 11-
Part, the outer hub of clutch before 12-, hub in clutch before 13-, clutch component after 14-, the outer hub of clutch after 15-, hub, 17- in clutch after 16-
Power transfer mechanism, 18- front output shaft, 19- sun gear, 20- planetary gear, 21- gear ring, 22- retainer conjunction gear, 23- is too
Conjunction gear is driven in sun wheel conjunction gear, 24- high to low gear synchronizer, 25- high to low gear shift fork, the outer hub of 26- clutch, 27- clutch two, 28- from
Conjunction 4 wheel driven conjunction gear, two 4 wheel driven conjunction gear of 29-, 30- retainer, two drive conjunction gears of 31- shift, 32- shift 4 wheel driven conjunction gear,
33- two 4 wheel driven tooth sets of shift, 34- shift synchronizer, 35- selector fork, 36- driving wheel, 37- driven wheel, 38- transition connection
Part, 39- clutch control device, 40- pressing plate, 41- elastic recoil part, 42- hold down assembly, 43- piston, 44- steel ball and spring, 45-
Steel ball.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The transfer gear that the present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one:
In the embodiment one, as shown in Figure 1, and combining transfer gear shown in Fig. 2-9 dynamic under each operating mode
Power transmitting, transfer gear 1 of the invention include planetary gear mechanism 2, two 4 wheel driven switching mechanisms 4, box of tricks 7, preceding clutch component
11 and rear clutch component 14, wherein
Planetary gear mechanism 2 is assemblied on input shaft 3, and can correspondingly switch output state according to different road conditions,
To have the low torque output state of the high torque output state and output phase that can export very strong driving force to low dynamics, two 4 wheel drivens
Switching mechanism 4 passes through the high to low gear tooth set 5 being axially movable and is sequentially connected with planetary gear mechanism 2, i.e., high and low shift tooth set 5 can
The high torque of planetary gear mechanism 2 or bottom torque are transmitted to two 4 wheel driven switching mechanisms 4, and two 4 wheel driven switching mechanisms 4 have four
It drives output state and directly drives the two of rear output shaft 6 and drive output state, box of tricks 7 includes rear output shaft sun gear 8 with before
The 4 wheel driven output state of output shaft sun gear 9 and differential planetary wheel 10, differential planetary wheel 10 and two 4 wheel driven switching mechanisms 4 is driven
Connection, i.e. two 4 wheel driven transformation mechanisms 4 can be transmitted to differential planetary wheel 10, differential planetary in the power that 4 wheel driven output state provides
Wheel 10 carries out power transmitting, rear output shaft sun gear 8 and preceding output by rear output shaft sun gear 8 and front output shaft sun gear 9
The speed ratio i of axis sun gear 9 can be set according to the front and back axle load ratio of vehicle, speed ratio i=1:1 or>1:1 or<1:1；And preceding clutch
Component 11 has hub 13 in the outer hub 12 of preceding clutch and preceding clutch, certainly, it is known that ground, hub 13 divides in the outer hub 12 of preceding clutch and preceding clutch
Not Ju You respective friction plate, correspondingly, rear clutch component 14 has hub 16 in the outer hub 15 of rear clutch and rear clutch, similarly, after
Hub 16 is also respectively provided with respective friction plate in the outer hub 15 of clutch and rear clutch, and hub 16 is fixedly mounted on rear output shaft in rear clutch
On 6, the outer hub 15 of rear clutch links with hub 13 in preceding clutch, wherein the transmission of hub 13 connects in rear output shaft sun gear 8 and preceding clutch
It connects, front output shaft sun gear 9 can be sequentially connected with hub 12 outside preceding clutch, and front output shaft sun gear 9 can be transmitted by power
Mechanism 17 and front output shaft 18 are sequentially connected, and the outer hub 12 of preceding clutch can be driven by power transfer mechanism 17 and front output shaft 18
Connection.
In this way, by the technical solution, especially because hub in the rear output shaft sun gear 8 of box of tricks 7 and preceding clutch
12 transmission connections, and the front output shaft sun gear 9 of box of tricks 7 can be passed by power transfer mechanism 17 and front output shaft 18
To carry out power transmitting, front output shaft sun gear 9 can be sequentially connected to carry out power transmitting with hub 12 outside preceding clutch for dynamic connection,
The outer hub 12 of preceding clutch can be sequentially connected by power transfer mechanism 17 and front output shaft 18, so as to provide a variety of driving moulds
The power output of formula, comprising:
Normal highway mode (2H mode): the mode is the mode that vehicle normal road condition travels lower selection, this mode is got off
Two drive states are constantly in, it is more fuel-efficient.Power transfer path are as follows: 2 low torque output of planetary gear mechanism-high and low shift tooth set
Two 4 wheel driven switching mechanism of 5-, 4 liang of drive output-rear output shafts 6, to drive vehicle rear output shaft 6, as shown in Figure 2.
Automatic control mode (AUTO) mode: vehicle can pass through vehicular control unit (ECU) and inhomogeneity under this mode
The driving status of the sensor detection vehicle of type, automatically switches two, 4 wheel driven operating mode according to actual road conditions, is not required to artificially dry
In advance.Wherein, when two drives, power output is identical as 2H mode, as shown in Figure 2；When 4 wheel driven, power transfer path are as follows: planetary gear
2 low torque output of mechanism-high and low shift tooth covers two 4 wheel driven switching mechanism of 5-, 4 liang of drive output-rear output shafts 6, at this point, rear output shaft 6
On power a part will be passed to rear-wheel, another part will pass sequentially through clutch before the outer hub 15- of clutch after hub 16- in rear clutch
The outer hub 12- power transfer mechanism 17- front output shaft 18 of clutch, is ultimately transferred to front-wheel before interior hub 13-, as shown in figure 3, at this point,
The ratio of the power transmitting of front and back wheel depends on the specific control according to traveling road conditions.
Simple off-road mode (4H mode): as shown in figure 4, this mode is high-speed operation mode, and vehicle one under this mode
Directly it is 4 wheel driven state, is suitble to simple cross-country, power transfer path are as follows: 2 low torque output of planetary gear mechanism-high and low shift tooth covers 5-
Two 4 wheel driven switching mechanism, 44 wheel driven output-differential planetary wheel 10, a part of power of differential planetary wheel 10 are transferred to rear output shaft too
Hub 16- rear output shaft 6 in clutch after the outer hub 15- of clutch after hub 13- in clutch before sun wheel 8-, is ultimately transferred to rear-wheel, and differential
Another part power of planetary gear 10 is transferred to front output shaft sun gear 9- power transfer mechanism 17- front output shaft 18, final to pass
Pass front-wheel.It is poor by the forward and backward vehicle wheel rotational speed of forward and backward wheel speed sensor monitoring under the mode, signal is passed into ECU,
ECU controls the combination of preceding clutch component 11 and rear clutch component 14 and cut-offs state, to control front-wheel output torque and rear-wheel
The size of output torque, so that forward and backward wheel continues dynamic output, to cope with simple cross-country road conditions.
Simple cross-country lockdown mode (4H LOCK mode): as shown in figure 4, in this mode, power transfer path and simple
Off-road mode (4H mode) is identical, but by controlling preceding clutch component 11 and rear clutch component 14, front output shaft may be implemented
18 and rear output shaft 6 rigid locking, so that vehicle can get rid of poverty in time.
Complicated off-road mode (4L mode): it as shown in figure 5, this mode is local-speed mode of operation, and is capable of increasing output and turns round
Square, wheel have more powerful power, cope with more complicated road conditions, are suitble to complicated cross-country.Power transfer path are as follows: planet tooth
It takes turns 2 high torque output of mechanism-high and low shift tooth and covers two 4 wheel driven switching mechanism of 5-, 44 wheel driven output-differential planetary wheel 10, differential planetary wheel
10 a part of power is transferred to before rear output shaft sun gear 8- in clutch after hub 13- after the outer hub 15- of clutch in clutch after hub 16-
Output shaft 6 is ultimately transferred to rear-wheel, and another part power of differential planetary wheel 10 is transferred to front output shaft sun gear 9- power
Transmission mechanism 17- front output shaft 18, is ultimately transferred to front-wheel.Under the mode, before being monitored by forward and backward wheel speed sensor,
Signal is passed to ECU by rear wheel rotational speed difference, and ECU controls the combination of preceding clutch component 11 and rear clutch component 14 and cut-offs shape
State, to control the size of front-wheel output torque and rear-wheel output torque, in addition, since planetary gear mechanism 2 is capable of providing height
Torque output, can increase forward and backward wheel output power and continue to maintain the power, should be complicated cross-country road conditions.
Complicated cross-country lockdown mode (4L LOCK mode): as shown in figure 5, in this mode, power transfer path and complexity
Off-road mode (4L mode) is identical, but by controlling preceding clutch component 11 and rear clutch component 14, front output shaft may be implemented
18 and rear output shaft 6 rigid locking, so that vehicle can get rid of poverty in time.
Snow field mode (snow mode), this mode is also known as 4 wheel driven automatic mode, the power of forward and backward wheel under this mode
(torque) output depends on the attachment coefficient on ground, (such as ice snow covered pavement when certain wheels travel is on the lesser ground of attachment coefficient
Face), frictional ground force is not enough to provide the tractive force of this wheel to drive vehicle, and respective sensor vehicle-mounted at this time can believe this
Number ECU is passed to, ECU can change the control model of vehicle, and the power of wheel of the traveling on the small ground of attachment coefficient (is turned round
Square) it is transferred to the wheel on the larger ground of attachment coefficient, to get rid of poverty and guarantee driving safety, the time of this control process is wink
Between, the transfer of power (torque) and getting rid of poverty for vehicle are to complete moment, this is different from above-described simple off-road mode
(4H mode) is based on this, and the transmission path of snow field mode 1-6 is specific as follows:
Snow mode 1: its power transfer path is as shown in Figure 4；
Snow mode 2: as shown in fig. 6,2 low torque output of planetary gear mechanism-high and low shift tooth covers two 4 wheel driven interpreter of 5-
44 wheel driven output of structure-differential planetary wheel 10, a part of power of differential planetary wheel 10 are transferred to clutch before rear output shaft sun gear 8-
Hub 16- rear output shaft 6 in clutch after the outer hub 15- of clutch, is ultimately transferred to rear-wheel after interior hub 13-, and differential planetary wheel 10 is another
A part of power is transferred to before the outer hub 12- of clutch before front output shaft sun gear 9- clutch after the outer hub 15- of clutch after hub 13- in clutch
Interior hub 16- rear output shaft 6, is finally also passed to rear-wheel.To which the adhesive force in front-wheel is smaller or when being zero, if front-wheel is in ice
When avenging slipperiness on roads, whole power pass to rear-wheel, allow the vehicle to get rid of poverty.
Snow mode 3: as shown in fig. 7,2 low torque output of planetary gear mechanism-high and low shift tooth covers two 4 wheel driven interpreter of 5-
44 wheel driven output of structure-differential planetary wheel 10, a part of power of differential planetary wheel 10 are transferred to clutch before rear output shaft sun gear 8-
The outer hub 12- power transfer mechanism 17- front output shaft 18 of clutch before interior hub 13-, is ultimately transferred to front-wheel, and differential planetary wheel 10
Another part power is transferred to front output shaft sun gear 9- power transfer mechanism 17- front output shaft 18, is finally also passed to front-wheel.
To which the adhesive force in rear-wheel is smaller or when being zero, if rear-wheel is when ice and snow road skids, whole power pass to front-wheel, make
Obtaining vehicle can get rid of poverty.
Snow mode 4: its power transfer path is as shown in Figure 5.
Snow mode 5: power transmitting Lu Jingyu snow mode 2 is essentially identical, only 2 high torque of planetary gear mechanism
Output, it is insufficient to cope with vehicle driving force by N times of power augmentation, and high and low shift tooth set 5 is transferred power to, specifically such as Fig. 8 institute
Show.
Snow mode 6: power transfer path and snow mode 3 are essentially identical, and only 2 high torque of planetary gear mechanism is defeated
Out, insufficient to cope with vehicle driving force by N times of power augmentation, and high and low shift tooth set 5 is transferred power to, specifically such as Fig. 9 institute
Show.
Climbing (trailer) mode: since vehicle is in trailer or climbing mode, rear axle load carrying accounts for vehicle car weight ratio
It is larger, therefore the output torque of rear output shaft is greater than the output shaft torque of front output shaft, i.e. A > B, therefore, it is necessary to according to trailer
Weight and the gradient size, realize front and back torque export ratio (A/B) corresponding change, specifically,
The power transmitting road strength of climbing mode one is as shown in figure 4, the power transfer path of climbing mode two is as shown in Figure 5.
In this way, transmitting explanation according to the power of above each operating mode, transfer gear of the invention allows the vehicle to root
It selects different operating modes during normal driving according to different road conditions, torque output in front and back is controlled accordingly, with reality
The torque distribution of existing 100:0 to 0:100, more to adapt to various road conditions, overcomes unnecessary power cycle, and more fuel-efficient, operation is more
Succinctly, the excellent driving mode of intelligent 4 wheel driven can be given full play to, to promote the reliability of vehicle.
On this basis, further, in a kind of structure type of the planetary gear mechanism 2 of transfer gear 1 of the present invention, such as scheme
Shown in 1, planetary gear mechanism 2 includes sun gear conjunction gear 23, high to low gear synchronizer 24 and the sun gear being successively radially set with
19, planetary gear 20 and gear ring 21, wherein sun gear 19 is fixedly mounted on input shaft 3, and the side of planetary gear 20 has
Retainer conjunction gear 22 is formed with retainer conjunction gear for example, the side of planetary gear 20 is provided with retainer on the retainer
22, and sun gear conjunction gear 23 is fixedly mounted on input shaft 3 and is spaced with retainer conjunction gear 22；Meanwhile high to low gear is synchronous
Device 24 is rotatably mounted on input shaft 3 and between sun gear conjunction gear 23 and retainer conjunction gear 22, wherein height
Gear tooth set 5 is engaged with high to low gear synchronizer 24, and high to low gear tooth set 5 can move axially simultaneously under the action of high to low gear shift fork 25
Drive high to low gear synchronizer 24 to move axially, engage with retainer conjunction gear 22 in high torque output state, or with too
The sun wheel engagement of conjunction gear 23 is in low torque output state.In this way, for example, in low torque output state, power is from input shaft
3- sun gear conjunction gear 23- high to low gear synchronizer 24- high to low gear tooth set 5；And in high torque output state, power is from input shaft
22 high to low gear synchronizer 24- high to low gear tooth of 3- sun gear 19- planetary gear 20- retainer conjunction gear set 5.
Further, in example 1, two 4 wheel driven switching mechanisms 4 are formed as clutch, it is specific as shown in Figure 1, it is described from
Clutch includes the outer hub 26 of clutch, the drive conjunction gear 27 of clutch two and clutch 4 wheel driven conjunction gear 28, wherein the outer hub 26 of clutch passes through two 4
Drive 5 transmission connection of conjunction gear 29 and high to low gear tooth set；And clutch two drives conjunction gear 27 be fixedly mounted on rear output shaft 6 can be straight
Driving rear output shaft 6 is connect, clutch 4 wheel driven conjunction gear 28 is driven by the differential planetary wheel 10 of retainer 30 and box of tricks 7 to be connected
It connects.In this way, as shown in Figures 2 and 3, power can cover hub 26- clutch two outside two 4 wheel driven conjunction gear 29- clutch of 5- from high to low gear tooth and drive
Conjunction gear 27- rear output shaft 6, or as shown in figures 4-9, power can cover two 4 wheel driven conjunction gear 29- clutch of 5- from high to low gear tooth
Outer hub 26- clutch 4 wheel driven conjunction gear 28- retainer 30- differential planetary wheel 10.
Further, in transfer gear 1 of the invention, as shown in Figure 1, power transfer mechanism 17 include driving wheel 36, from
Driving wheel 37 and transition piece 38, wherein driving wheel 36 can with front output shaft sun gear 9 be sequentially connected and/or can with it is preceding
The outer hub 12 of clutch is sequentially connected, for example, power can be directly delivered to driving wheel 36 or preceding clutch by preceding output sun gear 9
Received power can be transmitted to driving wheel 36 (as shown in Figure 3 and 7) or preceding output sun gear 9 and preceding clutch by outer hub 12
Outer hub 12 can transfer power to driving wheel 36 (as shown in figures 7 and 9)；Driven wheel 37 is fixed on front output shaft 18；And
Transition piece 38 is connected between driving wheel 36 and driven wheel 37, and power is transmitted to driven wheel 37 from driving wheel 36.Tool
The power transfer path of body is as shown in figs. 3-9.
Further, sprocket wheel, and transition piece can be formed as according to specific requirements, driving wheel 36 and driven wheel 37
38 are formed as driving chain；Alternatively, driving wheel 36 and driven wheel 37 are formed as gear, and transition piece 38 is formed as center tooth
Wheel, this can be specifically arranged according to specific transfer gear structure.
In addition, as shown in Figure 1, for the ease of carrying out clutch for clutch control, this hair to preceding clutch component 11 and rear clutch component 14
Bright transfer gear 1 further includes having clutch control device 39, and clutch control device 39 includes pressing plate 40 and holds down assembly 42, wherein
Pressing plate 40 can compress the outer hub 15 of rear clutch, and be provided with elastic recoil part 41 between hub 16 in rear clutch, and hold down assembly
42 can drive pressing plate 40 to compress the outer hub 15 of rear clutch, and make 41 energy storage of elastic recoil part, and elastic recoil part 41, which is released, to be made
40 return of pressing plate.In this way, the control unit (ECU) of vehicle can control the 42 pressure pressing plates that hold down assembly according to specific road conditions
40, the clutch of preceding clutch component 11 and rear clutch component 14 is accordingly controlled.
Further, it holds down assembly and 42 is formed as Hydraulic Conirol Unit, as shown in Figure 1, wherein Hydraulic Conirol Unit packet
The piston 43 of hydraulic cylinder is included, the end face of piston 43 is formed with receiving hole, steel ball and spring 44 and steel ball 45, steel are disposed in receiving hole
Ball 45 can contact pressing plate 40, be slidably matched in this way, steel ball 45 can be formed between pressing plate 40, and a point contact of steel ball 45
Pressing plate 40 improves the reliability of clutch for clutch control and prolongs the service life to reduce friction between the two.
Certainly, of the invention 42 control modes that can also use electromagnetic coil that hold down assembly.
Embodiment two:
In embodiment two, the present invention provides another transfer gear, in the transfer gear of the embodiment two, turn in addition to two 4
It changes planes except structure 4, other structures are all identical in embodiment one, specific as shown in Figure 10, two 4 wheel drivens in embodiment two
Switching mechanism 4 is gearshift, which includes that conjunction gear 31, shift 4 wheel driven conjunction gear 32, shift two 4 are driven in shift two
Drive tooth set 33 and shift synchronizer 34, wherein after two drive conjunction gear 31 of shift is fixedly mounted on rear output shaft 6 to directly drive
Output shaft 6, shift 4 wheel driven conjunction gear 32 are then sequentially connected by the differential planetary wheel 10 of retainer 30 and box of tricks 7, shift
Two 4 wheel driven teeth set 33 is rotatably mounted on rear output shaft 6 and is located at 5 transmission connection of high to low gear tooth set, shift synchronizer 34
Shift two is driven between conjunction gear 31 and shift 4 wheel driven conjunction gear 32, wherein two 4 wheel driven teeth of shift set 33 can be in selector fork 35
Under the action of move axially and drive shift synchronizer 34 move axially, with shift two drive conjunction gear 31 engage, in this way, power
Conjunction gear 31- rear output shaft 6 is driven from high to low gear tooth set 5- shift two 4 wheel driven teeth set 33- shift synchronizer 34- shift two, alternatively,
The axial movement of shift synchronizer 34 is engaged with shift 4 wheel driven conjunction gear 32, in this way, power covers 5- two 4 wheel drivens of shift from high to low gear tooth
Tooth covers 33- shift synchronizer 34- and shifts gears 4 wheel driven conjunction gear 32- retainer 30- differential planetary wheel 10, subsequent power transmitting and real
It applies identical in example one.
In addition, the present invention also provides a kind of vehicles, wherein the vehicle is provided with above embodiments one or embodiment two
Transfer gear 1.
In this way, as above each operating mode is illustrated, transfer gear 1 through the invention, the control list with vehicle
First (ECU) and corresponding sensor and actuator cooperation, can allow the vehicle to according to different road conditions during normal driving
Different operating modes is selected, torque output in front and back is controlled accordingly, to realize the torque distribution of 100:0 to 0:100,
More to adapt to various road conditions, unnecessary power cycle is overcome, more fuel-efficient, operation is more succinct, can give full play to intelligent 4 wheel driven
Excellent driving mode, to promote the reliability of vehicle.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of transfer gear, which is characterized in that the transfer gear (1) includes:
Planetary gear mechanism (2), the planetary gear mechanism (2) are assemblied on input shaft (3), and have high torque output state
With low torque output state；
Two 4 wheel driven switching mechanisms (4), the two 4 wheel drivens switching mechanism (4) pass through the high to low gear tooth set (5) being axially movable and institute
Planetary gear mechanism (2) transmission connection is stated, and with 4 wheel driven output state and the two drive output shapes for directly driving rear output shaft (6)
State；
Box of tricks (7), the box of tricks (7) include rear output shaft sun gear (8) and front output shaft sun gear (9) and poor
The 4 wheel driven output state of fast planetary gear (10), the differential planetary wheel (10) and the two 4 wheel drivens switching mechanism (4) is driven
Connection；
Preceding clutch component (11) has hub (13) in the outer hub (12) of preceding clutch and preceding clutch；
Clutch component (14) afterwards have hub (16) in the outer hub (15) of rear clutch and rear clutch, and hub (16) is fixed in the rear clutch
It is mounted on the rear output shaft (6), hub (13) links in the rear outer hub (15) of clutch and the preceding clutch；
Wherein, the rear output shaft sun gear (8) is sequentially connected with hub (13) in the preceding clutch, the front output shaft sun gear
(9) it can be sequentially connected with hub (12) outside the preceding clutch, the front output shaft sun gear (9) can pass through power transfer mechanism
(17) it is sequentially connected with front output shaft (18), the outer hub (12) of the preceding clutch can pass through the power transfer mechanism (17) and institute
State front output shaft (18) transmission connection.
2. transfer gear according to claim 1, which is characterized in that the planetary gear mechanism (2) includes:
Sun gear (19), planetary gear (20) and the gear ring (21) being successively radially set with, the sun gear (19) are fixedly mounted on
On the input shaft (3), the side of the planetary gear (20) has retainer conjunction gear (22)；
Sun gear conjunction gear (23), the sun gear conjunction gear (23) be fixedly mounted on the input shaft (3) and with the guarantor
Hold frame conjunction gear (22) interval；
High to low gear synchronizer (24), the high to low gear synchronizer (24) are rotatably mounted on the input shaft (3) and are located at
Between the sun gear conjunction gear (23) and the retainer conjunction gear (22), wherein the high to low gear tooth set (5) and the height
Low gear synchronizer (24) engagement, and the high to low gear tooth set (5) can move axially simultaneously under the action of high to low gear shift fork (25)
The high to low gear synchronizer (24) is driven to move axially, it is defeated in the high torque to be engaged with the retainer conjunction gear (22)
It does well, or engages with the sun gear conjunction gear (23) in the low torque output state.
3. transfer gear according to claim 1 or 2, which is characterized in that the two 4 wheel drivens switching mechanism (4) is formed as clutch
Device, the clutch include the outer hub (26) of clutch, the drive of clutch two conjunction gear (27) and clutch 4 wheel driven conjunction gear (28), wherein
The outer hub (26) of the clutch is sequentially connected by two 4 wheel driven conjunction gears (29) and the high to low gear tooth set (5)；
The clutch two is driven conjunction gear (27) and is fixedly mounted on the rear output shaft (6)；
The clutch 4 wheel driven conjunction gear (28) passes through the differential planetary wheel (10) of retainer (30) and the box of tricks (7)
Transmission connection.
4. transfer gear according to claim 1 or 2, which is characterized in that the two 4 wheel drivens switching mechanism (4) is formed as shifting gears
Mechanism, the gearshift include:
Conjunction gear (31) are driven in shift two, are fixedly mounted on the rear output shaft (6)；
It shifts gears 4 wheel driven conjunction gear (32), is passed by the differential planetary wheel (10) of retainer (30) and the box of tricks (7)
Dynamic connection；
It shifts gears two 4 wheel driven tooth sets (33), is sequentially connected with the high to low gear tooth set (5)；
It shifts gears synchronizer (34), be rotatably mounted on the rear output shaft (6) and be located at the two drive conjunction gear of shift
(31) between the shift 4 wheel driven conjunction gear (32), wherein two 4 wheel driven tooth sets (33) of the shift can be in selector fork
(35) it is moved axially under the action of and the shift synchronizer (34) is driven to move axially, to drive conjunction gear with the shift two
(31) it engages, or is engaged with the shift 4 wheel driven conjunction gear (32).
5. transfer gear according to claim 1, which is characterized in that the power transfer mechanism (17) includes:
Driving wheel (36), the driving wheel (36) can be sequentially connected with the front output shaft sun gear (9) and/or the active
Wheel (36) can be sequentially connected with hub (12) outside the preceding clutch；
Driven wheel (37), the driven wheel (37) are fixed on the front output shaft (18)；
Transition piece (38), the transition piece (38) be connected to the driving wheel (36) and the driven wheel (37) it
Between, power is transmitted to the driven wheel (37) from the driving wheel (36).
6. transfer gear according to claim 5, which is characterized in that the driving wheel (36) and the driven wheel (37) formation
For sprocket wheel, and the transition piece (38) is formed as driving chain；Alternatively,
The driving wheel (36) and the driven wheel (37) are formed as gear, and the transition piece (38) is formed as center tooth
Wheel.
7. transfer gear according to claim 1, which is characterized in that the transfer gear further includes having clutch control device
(39), the clutch control device (39) includes:
Pressing plate (40), the pressing plate (40) can compress it is described after the outer hub (15) of clutch, and with it is described after in clutch hub (16) it
Between be provided with elastic recoil part (41)；
Hold down assembly (42), and hold down assembly (42) can drive the pressing plate (40) to compress the outer hub (15) of rear clutch,
And make the elastic recoil part (41) energy storage.
8. transfer gear according to claim 7, which is characterized in that hold down assembly (42) are formed as hydraulic control group
Part, wherein the Hydraulic Conirol Unit includes the piston (43) of hydraulic cylinder, and the end face of the piston (43) is formed with receiving hole,
Steel ball and spring (44) and steel ball (45) are disposed in the receiving hole, the steel ball (45) can contact the pressing plate (40).
9. a kind of vehicle, which is characterized in that the vehicle is provided with transfer gear according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621330.7A CN106553541B (en) | 2015-09-25 | 2015-09-25 | Vehicle and transfer gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621330.7A CN106553541B (en) | 2015-09-25 | 2015-09-25 | Vehicle and transfer gear |
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| Publication Number | Publication Date |
|---|---|
| CN106553541A CN106553541A (en) | 2017-04-05 |
| CN106553541B true CN106553541B (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510621330.7A Active CN106553541B (en) | 2015-09-25 | 2015-09-25 | Vehicle and transfer gear |
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| Country | Link |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103630A (en) * | 2020-08-31 | 2022-03-01 | 蜂巢传动科技河北有限公司 | Vehicle transfer case, power assembly and vehicle |
| CN113060119B (en) * | 2021-04-08 | 2022-04-12 | 中国第一汽车股份有限公司 | Anti-skid control method for transfer case |
| CN115978104A (en) * | 2023-03-21 | 2023-04-18 | 中国第一汽车股份有限公司 | Transfer case and have its vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4907473A (en) * | 1987-09-30 | 1990-03-13 | Aisin Seiki Kabushiki Kaisha | Differential mechanism of a four-wheel driving apparatus for vehicles |
| GB0018509D0 (en) * | 2000-07-27 | 2000-09-13 | Ricardo Mtc Limited | Vehicle transmission systems |
| AT8859U1 (en) * | 2005-09-29 | 2007-01-15 | Magna Steyr Fahrzeugtechnik Ag | DIFFERENTIAL GEARBOX UNIT FOR MOTOR VEHICLES WITH ACTIVE CONTROL OF THE DRIVE POWER DISTRIBUTION |
| DE102007050704A1 (en) * | 2007-10-24 | 2009-04-30 | Volkswagen Ag | Transmission device for motor vehicle, has acceleration gear stage designed as double planetary gear stage with partial planetary gears, where number of teeth of output sun gear is lesser than number of teeth of input sun gear |
| CN103072479A (en) * | 2013-01-30 | 2013-05-01 | 长城汽车股份有限公司 | Four-wheel drive differential mechanism and automobile applying same |
-
2015
- 2015-09-25 CN CN201510621330.7A patent/CN106553541B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4907473A (en) * | 1987-09-30 | 1990-03-13 | Aisin Seiki Kabushiki Kaisha | Differential mechanism of a four-wheel driving apparatus for vehicles |
| GB0018509D0 (en) * | 2000-07-27 | 2000-09-13 | Ricardo Mtc Limited | Vehicle transmission systems |
| AT8859U1 (en) * | 2005-09-29 | 2007-01-15 | Magna Steyr Fahrzeugtechnik Ag | DIFFERENTIAL GEARBOX UNIT FOR MOTOR VEHICLES WITH ACTIVE CONTROL OF THE DRIVE POWER DISTRIBUTION |
| DE102007050704A1 (en) * | 2007-10-24 | 2009-04-30 | Volkswagen Ag | Transmission device for motor vehicle, has acceleration gear stage designed as double planetary gear stage with partial planetary gears, where number of teeth of output sun gear is lesser than number of teeth of input sun gear |
| CN103072479A (en) * | 2013-01-30 | 2013-05-01 | 长城汽车股份有限公司 | Four-wheel drive differential mechanism and automobile applying same |
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| Publication number | Publication date |
|---|---|
| CN106553541A (en) | 2017-04-05 |
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