CN107023613A - Height range switching device, transfer gear and vehicle - Google Patents
Height range switching device, transfer gear and vehicle Download PDFInfo
- Publication number
- CN107023613A CN107023613A CN201610064007.9A CN201610064007A CN107023613A CN 107023613 A CN107023613 A CN 107023613A CN 201610064007 A CN201610064007 A CN 201610064007A CN 107023613 A CN107023613 A CN 107023613A
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- Prior art keywords
- gear
- differential
- output shaft
- planet carrier
- planetary
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/344—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
- B60K17/346—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
- F16H37/0813—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft
- F16H37/082—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft and additional planetary reduction gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/24—Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0473—Friction devices, e.g. clutches or brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0483—Axle or inter-axle differentials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0487—Friction gearings
- F16H57/0489—Friction gearings with endless flexible members, e.g. belt CVTs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H2063/3093—Final output elements, i.e. the final elements to establish gear ratio, e.g. dog clutches or other means establishing coupling to shaft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention belongs to transfer gear technical field, it is related to height range switching device, transfer gear and vehicle.The height range switching device includes planetary gears and fixed mount, planetary gears includes that the gear sun gear on input shaft can be fixedly installed on, the gear planetary gear radially outward arranged successively, gear gear ring and gear tooth set, gear planetary gear is provided with the gear planet carrier for exporting power, gear tooth set can be axially moved, can be engaged with fixed mount so that gear gear ring is locked out to realize low gear power output, or, gear tooth set can be axially moved, can be engaged with gear planet carrier so that gear gear ring is fixedly connected to realize high gear power output with gear planet carrier, so that different parts can be combined using the gear tooth set of planetary gears, to realize the switching that height gear is carried out in the traveling process of vehicle.
Description
Technical field
The present invention relates to transfer gear technical field, more particularly to a kind of height range switching device, a kind of tool
There are the transfer gear and a kind of vehicle with this transfer gear of this height range switching device.
Background technology
As consumer is to automobile handling and off-the-road requirements more and more higher, auto industry is obtained
Develop rapidly, drive the 4 wheel driven technology of vehicle constantly to improve therewith.Current high-end vehicle and there is cross-country demand
Vehicle all use 4 wheel driven structure, the power that speed changer is exported is by transfer gear by required pro rate
To propons and back axle, four wheels and ground is had driving force, improve the handling of vehicle and lead to
Cross performance.
And vehicle is in actual travel, transfer gear then needs to select specific according to specific traveling road conditions
Output mode, for example, power is distributed, it is necessary to keep out position and transmit in climbing traveling, and in level land road conditions
Under, high gear transmission distribution power is generally required, accordingly, it would be desirable to carry out the switching at any time of high to low gear.Mesh
Before, high to low gear in transfer gear is typically connected using spline, when carrying out gear switching, it is necessary to stop into
Row switching, if vehicle is not very steady with regard to carrying out gear switching, often occurs to beat tooth phenomenon, makes transfer gear
Heavier abrasion or damage occurs for internal mechanical structure, influences normally travel, reduces making for transfer gear
Use the life-span.
In addition, some transfer gears of prior art and being not provided with central box of tricks, but pass through wet type
Multiplate clutch is allocated to the moment of torsion between propons and back axle, in normal vehicle operation, and substantially two
Drive state, 4 wheel driven pattern needs the speed discrepancy between bridge to activate, and mechanism action then has certain hysteresis quality,
And moment of torsion distribution is limited by clutch capacity, meanwhile, the power distributed in propons and back axle can not
It is lasting to keep
In addition, some transfer gears of prior art are then using torsional differential gear knot as central box of tricks,
However, the part processing precision of torsional differential gear knot requires higher, while complicated, production cost
It is higher, it is mainly used in high-end vehicle, due to the factor of production cost, limits its application.
The content of the invention
In view of this, the present invention is directed to propose a kind of height range switching device, height gear switching dress
Different parts can be combined using the gear tooth set of planetary gears by putting, to realize the row in vehicle
The switching of height gear is carried out during entering.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of height range switching device, the height range switching device includes planetary gears and solid
Determine frame, wherein, the planetary gears include being fixedly installed on gear sun gear on input shaft,
Gear planetary gear, gear gear ring and the gear tooth set radially outward arranged successively, the gear planetary gear
The gear planet carrier for exporting power is provided with, wherein, the gear tooth set can be axially moved, with
It can be engaged with the fixed mount and so that the gear gear ring is locked out to realize low gear power output,
Or, the gear tooth set can be axially moved, can be engaged with the gear planet carrier so that described
Gear gear ring is fixedly connected to realize high gear power output with the gear planet carrier.
Relative to prior art, in height range switching device of the present invention, covered and solid in gear tooth
When determining bridge joint conjunction, gear gear ring is locked out and can not rotated, now, and power is inputted by gear sun gear,
Exported after gear planetary gear by gear planet carrier, to realize the power output of low gear, in gear
When tooth set is engaged with gear planet carrier, gear gear ring will be fixedly connected with gear planet carrier, now, power
Inputted by gear sun gear, a part of power is delivered to gear planet carrier by gear planetary gear, meanwhile, gear
Position planetary gear is delivered to gear planet carrier again after another part power is covered by gear gear ring, gear tooth,
Final two parts power is unified to be exported by gear planet carrier, so that planetary gears is used as overall fortune
Turn, realize the power output of high gear, so, the axial movement covered by gear tooth is different to combine
Parts, while coordinate the meshing relation between gear sun gear, gear planetary gear and gear gear ring,
So as to realize the switching that height gear is carried out in the traveling process of vehicle, and with good reliability
And stability.
Further, soldered tooth, the gear are respectively formed with the fixed mount and the gear planet carrier
Position tooth set is engaged by corresponding synchronous ring with the fixed mount or the gear planet carrier respectively.
Further, the annular for accommodating high to low gear shift fork is formed with the outer peripheral face of the gear tooth set
Groove.
In addition, the present invention also provides a kind of transfer gear, the transfer gear include rear output shaft and front output shaft,
Box of tricks and any of the above height range switching device, wherein, an output of the box of tricks
Part is connected with the rear output shaft, and another output block of the box of tricks passes through chain turbine
Structure is connected with the front output shaft, and wherein, the box of tricks receives the gear planet carrier
The power of transmission, and by the power of reception according to distribution as needed to the front output shaft and the rear output
Axle.
So, the explanation more than to height range switching device of the invention, transfer gear of the invention
The switching of height gear can be carried out in the traveling process of vehicle, so that by box of tricks by high to low gear
The high to low gear dynamical stability that position switching device is provided reliably is assigned to front output shaft and rear output shaft, is car
Provide needed for driving force.
Further, the box of tricks includes differential sun gear, the differential row radially outward arranged successively
Star-wheel and differential gear, the differential planetary wheel are provided with differential planetary frame, wherein,
The differential planetary frame is connected with the gear planet carrier, and the differential sun gear passes through described
Chain-wheel mechanism is connected with the front output shaft, and the differential gear is driven with the rear output shaft to be connected
Connect；
Or,
The differential gear is connected with the gear planet carrier, and the differential planetary frame passes through the chain
Take turns mechanism to be connected with the front output shaft, the differential sun gear is driven with the rear output shaft to be connected
Connect.
Further, also include can not be to institute by the box of tricks locking for the transfer gear
State the differential lock of front output shaft and the rear output shaft differential.
Further, the differential lock includes differential lock splined hub and differential lock gear sleeve, wherein,
The differential lock splined hub is fixedly connected with the drive sprocket of differential sun gear and the chain-wheel mechanism,
The differential lock gear sleeve can be axially moved under the driving of differential lock shift fork with by the differential planetary frame
Fixed with the differential lock splined hub；
Or,
The differential lock splined hub is fixedly connected with the drive sprocket of differential planetary frame and the chain-wheel mechanism,
The differential lock gear sleeve can be axially moved under the driving of differential lock shift fork with by differential gear and described
Differential lock splined hub is fixed.
In addition, the transfer gear also includes torque adjustment mechanism, the torque adjustment mechanism includes and institute
State the outer hub of clutch of the drive sprocket drive connection of chain-wheel mechanism, be fixedly connected with the rear output shaft
Hub in clutch, while the lordosis wheel disc and rear cam disc of empty set in the rear on output shaft, wherein,
The rear cam disc can rotate adjustment corner, force the lordosis wheel disc to be axially moved along the axis of guide
With the compression degree of hub in hub outside the compressing control clutch and the clutch.
Further, the transfer gear also includes housing and lubricating system, wherein, the housing it is interior
Lubricant passage way is formed with surface, the gear planet carrier drives the lubricating system, to pass through the profit
Lubricating oil road by lubricating oil guide to the planetary gears, the box of tricks, the chain-wheel mechanism and
The torque adjustment mechanism.
In addition, the present invention also provides a kind of vehicle, the vehicle is provided with the transfer gear described in any of the above.
So, by the transfer gear, the vehicle can easily switch height gear during traveling,
And with required good four-driving-force.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, of the invention
Schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.
In accompanying drawing：
Fig. 1 is a kind of principle schematic of transfer gear described in the embodiment of the present invention, wherein, it is shown that this
The height range switching device of invention；
Fig. 2 is the principle schematic of another transfer gear described in the embodiment of the present invention.
Description of reference numerals：
1- fixed mounts, 2- input shafts, 3- gear sun gears, 4- gear planetary gears, 5- gear gear rings, 6-
Gear tooth set, 7- gear planet carriers, 8- soldered tooths, 9- synchronization rings, 10- high to low gear shift forks, 11- annular grooves,
12- rear output shafts, 13- front output shafts, 14- boxs of tricks, 15- chain-wheel mechanisms, 16- differential sun gears,
17- gear planet carriers, 18- differential gears, 19- differential planetary framves, 20- differential locks, 21- differential lock splines
Hub, 22- differential lock gear sleeves, 23- drive sprockets, 24- differential lock shift forks, 25- torque adjustment mechanisms, 26-
Cam disc, the 31- axis of guides, 32- after hub in the outer hub of clutch, 27- clutches, 29- lordosis wheel discs, 30-
Housing, 33- lubricating systems, 34- gearshift rotating hubs, 35- shift motors, 37- driven sprockets, 38- chains,
39- motors, 40- travelling gears.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the spy in embodiment
Levying to be mutually combined.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 is a kind of principle schematic of transfer gear described in the embodiment of the present invention.With reference to Fig. 1, this hair
Bright height range switching device includes planetary gears and fixed mount 1, as shown in figure 1, fixed mount
1 is relatively fixed and is arranged on housing 32, wherein, the planetary gears includes being fixedly installed on
Gear sun gear 3 on input shaft 2 and gear planetary gear 4, the gear tooth radially outward arranged successively
Circle 5 and gear tooth set 6, gear planetary gear 4 is provided with the gear planet carrier 7 for exporting power, its
In, gear tooth set 6 can be axially moved, such as be axially moved in the presence of high to low gear shift fork 10, with
It can be engaged with fixed mount 1 and so that gear gear ring 5 is locked out to realize low gear power output, or,
Gear tooth set 6 can be axially moved, can be engaged with gear planet carrier 7 so that gear gear ring 5 and gear
Position planet carrier 7 is fixedly connected to realize high gear power output.
In the technical scheme, when gear tooth set 6 is engaged with fixed mount 1, gear gear ring 5 is locked out
And can not rotate, now, power is inputted by gear sun gear 3, passes through gear after gear planetary gear 4
Position planet carrier 7 is exported, to realize the power output of low gear, in gear tooth set 6 and gear planet carrier 7
During engagement, gear gear ring 5 will be fixedly connected with gear planet carrier 7, now, and power is by gear sun gear
A part of power is delivered to gear planet carrier 7 by 3 inputs, gear planetary gear 4, meanwhile, gear planet
Wheel 4 is delivered to gear planet carrier 7 again after another part power is covered into 6 by gear gear ring 5, gear tooth,
Final two parts power is unified to be exported by gear planet carrier 7, so that planetary gears is used as entirety
Operating, realizes the power output of high gear, so, covers 6 axial movement to combine not by gear tooth
Same parts, while coordinating between gear sun gear 3, gear planetary gear 4 and gear gear ring 5
Meshing relation, so as to realize the switching for carrying out height gear needed in the traveling process of vehicle, i.e.,
The dynamic gear regulation of vehicle is realized, and with good reliability and stability.
Further, reliably engaged with fixed mount 1 and gear planet carrier 7 for the ease of gear tooth set 6,
Preferably, as shown in figure 1, being respectively formed with soldered tooth 8 on fixed mount 1 and gear planet carrier 7, gear
Corresponding soldered tooth is formed on the inner peripheral surface of position tooth set 6, it is possible to pass through each self-corresponding synchronization respectively
Ring 9 is engaged with fixed mount 1 or gear planet carrier 7, so, by synchronous ring 9, can be by gear tooth
The rotating speed of set 6 is gradually synchronous with fixed mount 1 and gear planet carrier 7, to improve the reliability of engagement, and
Significantly decrease the impact produced during engagement between the two due to the asynchronous of rotating speed.
As described above, gear tooth set 6 can be moved axially, therefore, in a kind of preferred structure, gear
Position tooth set 6 can be driven by high to low gear shift fork 10, as shown in figure 1, the periphery of gear tooth set 6
The annular groove 11 for accommodating high to low gear shift fork 10 is formed with face, so, high to low gear shift fork 10 is accommodated
Coordinate in annular groove 11, so that, the driving gearshift rotating hub 34 of shift motor 35, gearshift rotating hub 34 is led to
Cross gearshift track thereon to drive high to low gear shift fork 10 to move axially, and be further driven to gear tooth set 6
It is axially moved, so as to realize the switching of height gear.
In addition, as shown in figure 1, the present invention also provides a kind of transfer gear, the transfer gear includes rear output shaft
12 and front output shaft 13, box of tricks 14 and any of the above described in height range switching device, wherein,
An output block and the rear output shaft 12 of box of tricks 14 are connected, box of tricks 14 it is another
Individual output block is connected by chain-wheel mechanism 15 with front output shaft 13, and wherein, box of tricks
14 receive the power of the transmission of gear planet carrier 7, and by the power of reception according to distribution as needed to preceding output
Axle 13 and rear output shaft 12.
So, the transfer gear of the invention can carry out cutting for height gear in the traveling process of vehicle
Change, so that the high to low gear dynamical stability for being provided height range switching device by box of tricks 14 is reliable
Ground is assigned to front output shaft 13 and rear output shaft 12, for the driving force needed for vehicle is provided.
Therefore, the box of tricks of the present invention is preferably by planetary gears, specifically, such as Fig. 1 and
Shown in 2, box of tricks 14 includes differential sun gear 16, the differential planetary wheel radially outward arranged successively
17 and differential gear 18, differential planetary wheel 17 is provided with differential planetary frame 19, still, use of the invention
Two kinds of differential patterns, a kind of differential pattern such as Fig. 1 can be had by making the planetary gears of box of tricks 14
Shown, another differential pattern is as shown in Fig. 2 specifically：
In a kind of differential pattern shown in Fig. 1, differential planetary frame 19 is driven with gear planet carrier 7 to be connected
Connect to receive the high gear power or low gear power of the output of gear planet carrier 7, differential sun gear 16 leads to
Cross chain-wheel mechanism 15 to be connected with front output shaft 13, such as differential sun gear 16 and chain-wheel mechanism 15
Drive sprocket 23 be fixedly installed in same support shaft, and differential gear 18 then with rear output shaft 12
Drive connection, for example, can be fixedly installed on rear output shaft 12, so, and gear planet carrier 7 will be dynamic
Power is delivered to differential planetary wheel 17 by differential planetary frame 19, according to demand, and differential planetary wheel 17 is by one
Partial power is delivered to differential sun gear 16, then passes through drive sprocket 23, chain 38 and driven sprocket
37 are delivered to front output shaft 13, meanwhile, another part power is delivered to differential tooth by differential planetary wheel 17
Circle 18, differential gear 18 drives rear output shaft 12 to rotate.When road adherence is small, occur front-wheel or after
When wheel skids, the moment of torsion between front output shaft 13 and rear output shaft 12 will be by as box of tricks 14
Planetary gears adjust, for example, torque adjustment mechanism 25 described below will be according to vehicle
The compression degree of hub 27 in the instruction that control unit is sent, the outer hub 26 of control control clutch and clutch,
To adjust the speed that differential gear 18 and differential sun gear 16 are rotated, so that Intelligent adjustment front output shaft 13
Moment of torsion between rear output shaft 12.
In the differential pattern shown in Fig. 1, the moment of torsion between front output shaft 13 and rear output shaft 12 can
According to required real-time adjustment, still, transfer gear of the invention, which also includes, to lock box of tricks 14
Only can not be to front output shaft 13 and the differential lock 20 of the differential of rear output shaft 12, to ensure vehicle extreme
Driving force under road conditions, so, under some road conditions, it becomes possible to persistently keep the He of front output shaft 13
The moment of torsion of rear output shaft 12, so that vehicle tackles bad road surface or vehicle is got rid of poverty.Specifically, in differential
In a kind of preferred constructive form of lock 20, differential lock 20 includes differential lock splined hub 21 and differential lock gear
Set 22, wherein, differential lock splined hub 21 and differential sun gear 16 and the drive sprocket of chain-wheel mechanism 15
23 are fixedly connected, and differential lock gear sleeve 22 can be axially moved under the driving of differential lock shift fork with by differential
Planet carrier 19 and differential lock splined hub 21 are fixed, when differential lock gear sleeve 22 is by differential planetary frame 19 and poor
Speed lock splined hub 21 fix after, as box of tricks 14 planetary gears will as overall operation,
Now, gear planet carrier 7 pass to the part of the power of differential planetary frame 19 will be by differential lock gear
Set 22 and differential lock splined hub 21 are delivered to drive sprocket 23 so that box of tricks 14 can not carry out difference
Speed, now, torque adjustment mechanism 25 hereafter need not simultaneously work.
For example, the driving gearshift rotating hub 34 of shift motor 35, gearshift rotating hub 34 passes through gearshift track thereon
To drive differential lock shift fork 24 to move axially, and it is further driven to differential lock gear sleeve 22 and is axially moved, from
And realize the locking and unblock of box of tricks 14.
In another differential pattern shown in Fig. 2, differential gear 18 is driven with gear planet carrier 7 to be connected
Connect to receive the high gear power or low gear power of the output of gear planet carrier 7, differential planetary frame 19 leads to
Cross chain-wheel mechanism 15 to be connected with front output shaft 13, differential sun gear 16 is driven with rear output shaft 12
Connection, so, gear planet carrier 7 will keep out power or high gear power is delivered to differential gear 18, differential
Gear ring 18 drives differential planetary wheel 17 to operate and by differential planetary frame 19, drive sprocket 23, chain
38 and driven sprocket 37 be delivered to front output shaft 13, meanwhile, differential planetary wheel 17 drive the differential sun
Wheel 16 and rear output shaft 12 are rotated.Similarly, when road adherence is small, front-wheel or rear wheels slip occurs,
Moment of torsion between front output shaft 13 and rear output shaft 12 will pass through the planetary gear as box of tricks 14
Mechanism is adjusted, for example, torque adjustment mechanism 25 described below will be sent out according to control unit for vehicle
The compression degree of hub 27 in the instruction gone out, the outer hub 26 of control control clutch and clutch, to adjust difference
The speed that fast gear ring 18 and differential sun gear 16 are rotated, so that Intelligent adjustment front output shaft 13 and rear defeated
Moment of torsion between shaft 12.
It is similar with the differential pattern shown in Fig. 1 in the differential pattern shown in Fig. 2, front output shaft 13
Moment of torsion between rear output shaft 12 can be according to required real-time adjustment, still, transfer gear of the invention
Also including can not be to front output shaft 13 and the differential of rear output shaft 12 by the locking of box of tricks 14
Differential lock 20, to ensure driving force of the vehicle under extreme road conditions, so, under some road conditions,
The moment of torsion of holding front output shaft 13 and rear output shaft 12 can just be continued, so that vehicle tackles bad road surface
Or vehicle is got rid of poverty.Specifically, in a kind of preferred constructive form of differential lock 20, differential lock 20 includes
Differential lock splined hub 21 and differential lock gear sleeve 22, wherein, differential lock splined hub 21 and differential planetary frame
19 are fixedly connected with the drive sprocket 23 of chain-wheel mechanism 15, and differential lock gear sleeve 22 can be dialled in differential lock
It is axially moved under the driving of fork 24 so that differential gear 18 and differential lock splined hub 21 to be fixed, so,
After differential lock gear sleeve 22 fixes differential gear 18 and differential lock splined hub 21, box of tricks is used as
14 planetary gears will be as overall operation, and now, gear planet carrier 7 passes to differential gear
A part for 18 power will be delivered to drive sprocket by differential lock gear sleeve 22 and differential lock splined hub 21
23 so that box of tricks 14 can not carry out differential, now, torque adjustment mechanism 25 hereafter is simultaneously not required to
Work.
For example, identically with Fig. 1 structure, in Fig. 2, the driving gearshift rotating hub 34 of shift motor 35,
Gearshift rotating hub 34 drives differential lock shift fork 24 to move axially by gearshift track thereon, and further
Differential lock gear sleeve 22 is driven to be axially moved, so as to realize the locking and unblock of box of tricks 14.
As described above, under high gear power or low gear power, when box of tricks 14 needs regulation
During moment of torsion between front output shaft 13 and rear output shaft 12, it can preferably pass through torque adjustment mechanism 25
To realize, specifically, as illustrated in fig. 1 and 2, transfer gear of the invention also includes torque adjustment mechanism
25, torque adjustment mechanism 25 includes the clutch being connected with the drive sprocket 23 of chain-wheel mechanism 15
Hub 27 in outer hub 26, the clutch being fixedly connected with rear output shaft 12, while empty set is in rear output shaft 12
On lordosis wheel disc 29 and rear cam disc 30, wherein, rear cam disc 30 can rotate adjustment corner, example
Such as, motor 39 is acted with nutating gear 40, and be further driven to rear cam disc 30 operate with
Corner is adjusted, and forces lordosis wheel disc 29 to be axially moved along the axis of guide 31 to oppress hub outside control clutch
26 and clutch in hub 27 compression degree, to control differential sun gear 16 and differential gear 18 (Fig. 1)
Operating speed, or to control differential sun gear 16 from the operating with differential planetary wheel 17 (Fig. 2)
Speed, so as to the adhesion condition according to wheel, is entered by control unit for vehicle to the hub piece of clutch
The different degrees of compression of row, the moment of torsion between front output shaft 13 and rear output shaft 12 is adjusted with real-time intelligent.
Further, on the basis of more than, in order to improve the service life of transfer gear, part is reduced
Abrasion, as illustrated in fig. 1 and 2, transfer gear of the invention also includes housing 32 and lubricating system 33,
Wherein, lubricant passage way (not shown), the driving profit of gear planet carrier 7 are formed with the inner surface of housing 32
Sliding system 33, to be guided lubricating oil to the planetary gear machine switched as high to low gear by lubricant passage way
Structure, the planetary gears as box of tricks 14, chain-wheel mechanism 15 and torque adjustment mechanism 25, with
Forced feed lubrication is carried out to these parts.
In addition, the present invention also provides a kind of vehicle, the vehicle is provided with the transfer gear described in any of the above.
So, by the transfer gear, the vehicle can easily switch height gear, and root during traveling
According to the power of required real-time regulation 4 wheel driven, or box of tricks 14 is locked and persistently keeps front and rear defeated
The four-driving-force of shaft.
Presently preferred embodiments of the present invention is these are only, is not intended to limit the invention, it is all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvements made etc. should be included in this hair
Within bright protection domain.
Claims (10)
1. a kind of height range switching device, it is characterised in that the height range switching device includes row
Star gear mechanism and fixed mount (1), wherein, the planetary gears is defeated including that can be fixedly installed on
Enter the gear sun gear (3) on axle (2) and the gear planetary gear (4) radially outward arranged successively,
Gear gear ring (5) and gear tooth set (6), the gear planetary gear (4) are provided with for exporting power
Gear planet carrier (7), wherein,
The gear tooth set (6) can be axially moved, and be made with that can be engaged with the fixed mount (1)
The gear gear ring (5) is obtained to be locked out to realize low gear power output, or,
The gear tooth set (6) can be axially moved, can be engaged with the gear planet carrier (7)
So that the gear gear ring (5) is fixedly connected to realize high gear power with the gear planet carrier (7)
Output.
2. height range switching device according to claim 1, it is characterised in that the fixed mount
(1) soldered tooth (8), the gear tooth set (6) and on the gear planet carrier (7) are respectively formed with
Connect respectively by corresponding synchronous ring (9) and the fixed mount (1) or the gear planet carrier (7)
Close.
3. height range switching device according to claim 1, it is characterised in that the gear tooth
The annular groove (11) for accommodating high to low gear shift fork (10) is formed with the outer peripheral face for covering (6).
4. a kind of transfer gear, it is characterised in that the transfer gear includes rear output shaft (12) and preceding output
Axle (13), box of tricks (14) and the height gear according to any one in claim 1-3
Switching device, wherein, an output block and the rear output shaft (12) of the box of tricks (14)
Drive connection, another output block of the box of tricks (14) passes through chain-wheel mechanism (15) and institute
Front output shaft (13) drive connection is stated, and wherein, the box of tricks (14) receives the gear
The power of planet carrier (7) transmission, and by the power of reception according to distribution as needed to the front output shaft
And the rear output shaft (12) (13).
5. transfer gear according to claim 4, it is characterised in that box of tricks (14) bag
The differential sun gear (16) radially outward arranged successively, differential planetary wheel (17) and differential gear (18) are included,
The differential planetary wheel (17) is provided with differential planetary frame (19), wherein,
The differential planetary frame (19) is connected with the gear planet carrier (7), and the differential is too
Sun wheel (16) is connected by the chain-wheel mechanism (15) and the front output shaft (13), described
Differential gear (18) is connected with the rear output shaft (12)；
Or,
The differential gear (18) is connected with the gear planet carrier (7), the differential planetary
Frame (19) is connected by the chain-wheel mechanism (15) and the front output shaft (13), the difference
Fast sun gear (16) is connected with the rear output shaft (12).
6. transfer gear according to claim 5, it is characterised in that the transfer gear also includes energy
Enough can not be to the front output shaft (13) and the rear output shaft by the box of tricks (14) locking
(12) differential lock (20) of differential.
7. transfer gear according to claim 6, it is characterised in that the differential lock (20) includes
Differential lock splined hub (21) and differential lock gear sleeve (22), wherein,
The differential lock splined hub (21) and differential sun gear (16) and the chain-wheel mechanism (15)
Drive sprocket (23) is fixedly connected, and the differential lock gear sleeve (22) can be in differential lock shift fork ()
Driving is lower to be axially moved so that the differential planetary frame (19) and the differential lock splined hub (21) is fixed；
Or,
The differential lock splined hub (21) and differential planetary frame (19) and the chain-wheel mechanism (15)
Drive sprocket (23) is fixedly connected, and the differential lock gear sleeve (22) can be in differential lock shift fork (24)
Driving under be axially moved so that differential gear (18) and the differential lock splined hub (21) is fixed.
8. the transfer gear according to any one in claim 4-7, it is characterised in that the transfer
Device also includes torque adjustment mechanism (25), and the torque adjustment mechanism (25) includes and the sprocket wheel
The outer hub (26) of clutch of drive sprocket (23) drive connection of mechanism (15) and the rear output
Hub (27) in the clutch that axle (12) is fixedly connected, while empty set is in the rear on output shaft (12)
Lordosis wheel disc (29) and rear cam disc (30), wherein,
The rear cam disc (30) can rotate adjustment corner, force lordosis wheel disc (29) edge to be led
It is axially moved to oppress outside the control clutch hub (27) in hub (26) and the clutch to axle (31)
Compression degree.
9. transfer gear according to claim 8, it is characterised in that the transfer gear also includes shell
Body (32) and lubricating system (33), wherein, it is formed with lubrication on the inner surface of the housing (32)
Oil circuit, the gear planet carrier (7) drives the lubricating system (33), to pass through the lubricant passage way
Lubricating oil is guided to the planetary gears, the box of tricks (14), the chain-wheel mechanism (15)
With the torque adjustment mechanism (25).
10. a kind of vehicle, it is characterised in that the vehicle is provided with according to claim 9 point
Dynamic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064007.9A CN107023613B (en) | 2016-01-29 | 2016-01-29 | High-low gear switching device, transfer case and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064007.9A CN107023613B (en) | 2016-01-29 | 2016-01-29 | High-low gear switching device, transfer case and vehicle |
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| CN107023613A true CN107023613A (en) | 2017-08-08 |
| CN107023613B CN107023613B (en) | 2020-02-14 |
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|---|---|---|---|
| CN201610064007.9A Active CN107023613B (en) | 2016-01-29 | 2016-01-29 | High-low gear switching device, transfer case and vehicle |
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| CN107495881A (en) * | 2017-08-31 | 2017-12-22 | 浙江工业大学 | A kind of bathing back-rubbing machine with multi-operation mode |
| CN110657203A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN111572342A (en) * | 2019-02-15 | 2020-08-25 | 现代自动车株式会社 | Power train of vehicle |
| CN112855871A (en) * | 2021-01-19 | 2021-05-28 | 燕山大学 | Two-gear transfer case with electric control power distribution and mechanical locking |
| CN113586697A (en) * | 2020-04-30 | 2021-11-02 | 蜂巢传动科技河北有限公司 | Torque manager |
| CN113586696A (en) * | 2020-04-30 | 2021-11-02 | 蜂巢传动科技河北有限公司 | Actuator of transfer case |
| CN113653798A (en) * | 2021-08-19 | 2021-11-16 | 燕山大学 | Two-gear electric control transfer case with locking mechanism |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107495881A (en) * | 2017-08-31 | 2017-12-22 | 浙江工业大学 | A kind of bathing back-rubbing machine with multi-operation mode |
| CN110657203A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
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| CN113586696A (en) * | 2020-04-30 | 2021-11-02 | 蜂巢传动科技河北有限公司 | Actuator of transfer case |
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| 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 |
| CN112855871A (en) * | 2021-01-19 | 2021-05-28 | 燕山大学 | Two-gear transfer case with electric control power distribution and mechanical locking |
| CN113653798A (en) * | 2021-08-19 | 2021-11-16 | 燕山大学 | Two-gear electric control transfer case with locking mechanism |
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| CN107023613B (en) | 2020-02-14 |
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