CN108825740A - A kind of endless-track vehicle speed changer that postposition is reversed gear - Google Patents
A kind of endless-track vehicle speed changer that postposition is reversed gear Download PDFInfo
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- CN108825740A CN108825740A CN201811036329.8A CN201811036329A CN108825740A CN 108825740 A CN108825740 A CN 108825740A CN 201811036329 A CN201811036329 A CN 201811036329A CN 108825740 A CN108825740 A CN 108825740A
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- gear
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- output
- shaft
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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
Abstract
A kind of endless-track vehicle speed changer that postposition is reversed gear, including the gear component being mounted in box assembly, differential steering component, double-current driving assembly, power transfer assembly and power output and conversion operation component, wherein, gear component and differential steering component, double-current driving assembly connection, differential steering component is connect with double-current driving assembly, and share same steering shaft, double-current driving assembly is connect with power transfer assembly, power transfer assembly is connect with power output and conversion operation component, using HST continuous turning and mechanical more gear traveling composition power double fluid inputs, to realize that crawler belt two sides differential speed type turns to, turning radius can consecutive variations, turn to accuracy；The power of sun gear input and gear ring input is exported after converging by the gear ring of planetary gear mechanism, double fluid input uses planetary gear coaxial transmission, compact-sized, reliable operation, and reverse gear in double fluid output rear end setting, be conducive to improve steering operation convenience and travel safety.
Description
Technical field
The present invention relates to gear technical field more particularly to a kind of endless-track vehicle speed changers that postposition is reversed gear.
Background technique
The endless-track vehicle of two crawler belts traveling, when left track rotational speed difference occurs with right side track, endless-track vehicle can be real
It turns now to.Currently used drive scheme has the various ways such as Electric Drive, hydraulic power and machine driving, due to machine driving
It is high-efficient, application is very extensive, in Mechanical Drive Type, mainly has and singly spreads dynamic and split path transmission, using double-current (double function
Rate stream) input power endless-track vehicle speed changer, generally use two sets of planetary gear mechanisms make gear input power with
Converge after the power of steering mechanism's input is in parallel, the power of gear input is defeated by the gear ring or sun gear of planetary gear mechanism
Enter, the power of steering mechanism's input is inputted by the sun gear or gear ring of planetary gear mechanism, and the power after converging is defeated by planet carrier
Out；In split path transmission, inputted if turning to input power using variable speed, turn to it is flexible, turning radius can consecutive variations,
The revolving speed proportion relation of steering angular velocity and steering mechanism's input turns to precisely, superior performance；Using planetary gear
In the split path transmission scheme of mechanism, the steering operation direction of steering operation mechanism (steering wheel or steering linkage) is constant (such as：For
The steering operation mechanism of disc type is turned to, steering wheel is biased to left or right side when moving forward and backward), turned with operating to the left
To for mechanism, when advance, steering mechanism is operated to the left, after power confluence, left track slows down, and right side track accelerates, crawler belt
Vehicle turns to the left, when retrogressing, equally operates steering mechanism to the left, and when due to reversing, speed change input power is reversed, and turns to defeated
It is unchanged to enter power direction, although endless-track vehicle travels backward, since the deflection direction of steering mechanism is unchanged, left side is caused to be carried out
The changing rule of band and right side track is unchanged, i.e.,：Left track slows down with respect to direction of advance, and right side track adds with respect to direction of advance
Speed is (i.e.：Left track accelerates reversing, and right side track slows down reversing), endless-track vehicle reverse travel to the right, steering mechanism is to the left
Lateral deviation turns, and when advance turns to the left to be turned to the right when then moving back, and leads to operating difficulties, or even safety accident occur；Especially for
Crawler tractor, crawler belt rotary cultivator or the tracked carrier being engaged in agricultural production, due under non-rice habitats handling situations, gear
It is with low uncertainty, and advance, move backward switching it is very frequent, there are security risks.
Summary of the invention
Technical problem solved by the invention is to provide a kind of endless-track vehicle speed changer that postposition is reversed gear, above-mentioned to solve
Disadvantage in background technique.
Technical problem solved by the invention is realized using following technical scheme：
A kind of endless-track vehicle speed changer that postposition is reversed gear, including gear component, the differential being mounted in box assembly
Steering assembly, double-current driving assembly, power transfer assembly and power output and conversion operation component, wherein gear component
It is connect with differential steering component, double-current driving assembly, differential steering component is connect with double-current driving assembly, and differential steering component
Same steering shaft is shared with double-current driving assembly, double-current driving assembly is connect with power transfer assembly, power transfer assembly and dynamic
Power output is connected with conversion operation component, and specific structure is as follows：
Box assembly includes main box and auxiliary box body；
One axis and two axis be installed, successively empty set is equipped with a gear actively on an axis in gear component, on main box
Gear, two gear driving gear, three gear driving gears and fourth gear driving gear, and one or two are equipped with by spline fitted on an axis
Keep off splined hub and three or four gear splined hubs, an axis and a second gear splined hub, three or four keep off the affixed transmissions of splined hub, in a second gear splined hub
It is provided with the second gear combined cover for second gear shift fork insertion, is provided in three or four gear splined hubs for three or four gear shift fork insertions
Three or four gear combined covers, a second gear splined hub is driven with a second gear combined cover by inside and outside spline fitted, three or four keep off splined hubs and
Three or four gear combined covers are driven by inside and outside spline fitted, and a second gear combined cover exterior circumferential is provided with allocating slot, and a second gear shift fork is inserted
Enter the allocating slot of a second gear combined cover to limit the axial position of a second gear combined cover, three or four gear combined cover exterior circumferentials, which are provided with, to be dialled
Slot, the allocating slot of three or four gear shift fork insertion, three or four gear combined cover is to limit three or four axial positions for keeping off combined covers；On two axis by according to
It is secondary be provided with one gear driving gear engage one gear driven gear, engaged with two gear driving gear second gear driven gear, and
Three gear driven gears of three gear driving gears engagements and that engage with fourth gear driving gear four keep off driven gears, power is from two axis
Three gear driven gear outputs；
In differential steering component, steering shaft is mounted on main box and differential steering end cap, and steering shaft one end is provided with
Drive bevel gear, the steering shaft other end are provided with right sun gear and turn to driven gear；Connecting shaft is mounted in steering shaft, and
One end of the connecting shaft is provided with the driven wheel of differential engaged with drive bevel gear, and the connecting shaft other end is provided with left sun gear；Planet
Gear shaft is fixed on differential steering end cap, and planetary gear is mounted in planetary gear shaft；
The HST input shaft and an axis connection of hydrostatic stepless speed change device, the HST output shaft of hydrostatic stepless speed change device
On be equipped with and turn to the diversion driving-gear that often engages of driven gear；
In double-current driving assembly, right lateral gear rack is mounted in steering shaft, and left lateral gear rack is mounted in connecting shaft,
Left driving driving gear and left planetary gear are provided on left lateral gear rack, multiple left planetary gears are evenly arranged on left sun gear week
It encloses；Right driving driving gear and right planetary gear are provided on right lateral gear rack, multiple right planetary gears are evenly arranged on the right sun
Around wheel；
Gear ring frame is mounted in the middle part of steering shaft, and the input tooth often engaged with three gear driven gears is provided on the outside of gear ring frame
Wheel, gear ring frame inside are provided with left gear ring and right gear ring, and left gear ring is often engaged with left planetary gear, right gear ring and right planetary gear
Often engagement, left planetary gear are often engaged with left sun gear, and right planetary gear is often engaged with right sun gear；
In power transfer assembly, idler shaft, reverse gear shaft are mounted on main box, and left idle pulley and right idle pulley are mounted on idler shaft
On, left idle pulley is often engaged with left driving driving gear, and right idle pulley is often engaged with right driving driving gear；Reverse gear shaft left end is equipped with
Left reverse input gear and left reverse output gear, reverse gear shaft right end is equipped with right reverse input gear and the right side is reversed gear output gear
Wheel, left reverse input gear are often engaged with left idle pulley, and right reverse input gear is often engaged with right idle pulley；
In power output and conversion operation component, left driving output shaft one end is mounted on main box, left driving output shaft
The other end is mounted in right driving output shaft, and left driving reverse output gear, left driving output gear and left splined hub are mounted on
On left driving output shaft, the left combined cover for the insertion of left shift fork is installed in left splined hub, left splined hub and left combined cover are logical
Inside and outside spline fitted transmission is crossed, left combined cover exterior circumferential is provided with the allocating slot for the insertion of left shift fork, and left shift fork is inserted into left knot
The allocating slot of trap is to limit the axial position of left combined cover；Left driving output gear is often engaged with left idle pulley, and left driving is reversed gear defeated
Gear is often engaged with left reverse output gear out；Right driving output shaft both ends are separately mounted on main box, right driving output gear
Wheel, right driving reverse output gear and right splined hub are mounted on right driving output shaft, are equipped in right splined hub and are dialled for right
The right combined cover of insertion is pitched, right splined hub is driven with right combined cover by inside and outside spline fitted, right combined cover exterior circumferential setting
There is the allocating slot for the insertion of right shift fork, right shift fork is inserted into the allocating slot of right combined cover to limit the axial position of right combined cover, right drive
Dynamic output gear is often engaged with right idle pulley, and right driving reverse output gear is often engaged with right reverse output gear；Commutate shift fork axle
It is mounted on main box, left shift fork and right shift fork are mounted in commutation shift fork axle.
In the present invention, a second gear splined hub is mounted on the axis between a gear driving gear and two gear driving gear
On.
In the present invention, three or four gear splined hubs are mounted on the axis between three gear driving gears and fourth gear driving gear
On.
In the present invention, left lateral star gear quantity is any one number in 2,3,4.
In the present invention, right lateral star gear quantity is any one number in 2,3,4.
In the present invention, left reverse input gear is connect with left reverse output gear by spline fitted.
In the present invention, right reverse input gear is connect with right reverse output gear by spline fitted.
In the present invention, left splined hub is mounted between left driving output gear and left driving reverse output gear
On left driving output shaft.
In the present invention, right splined hub is mounted between right driving output gear and right driving reverse output gear
On right driving output shaft.
In the present invention, commutation shift fork axle is mounted on main box by spring steel ball self-locking mechanism.
In the present invention, advance straight-line travelling
Commutation shift fork axle is stirred to the left and is placed in forward gear, drives left shift fork axle, right shift fork axle moves to left；
Left shift fork axle, which moves to left, drives left shift fork to move to left, and then left combined cover is driven to move to left in conjunction with left driving output gear；
Right shift fork axle, which moves to left, drives right shift fork to move to left, and then right combined cover is driven to move to left in conjunction with right driving output gear；
HST output shaft does not rotate, and the whole gears being mounted in steering shaft do not rotate, therefore left sun gear and the right sun
Wheel does not rotate, and power then divides two-way through gear to input gear, is transferred to left driving driving gear, another way all the way
It is transferred to right driving driving gear：
The power of left driving driving gear is transferred to by input gear, gear ring frame, left gear ring, left planetary gear, left lateral star
Tooth rest, left driving driving gear, left idle pulley, left driving output gear, left combined cover, left splined hub to left driving output shaft,
Drive left track；
The power of right driving driving gear is transferred to by input gear, gear ring frame, right gear ring, right planetary gear, right lateral star
Tooth rest, right driving driving gear, right idle pulley, right driving output gear, right combined cover, right splined hub to right driving output shaft,
Drive right side track；
Since the revolving speed of left sun gear is identical as the revolving speed of right sun gear, contrary, therefore pass through left planetary gear and the right side
Planetary gear acts on that the power size in steering shaft is identical, contrary, and steering shaft is self-locking, endless-track vehicle advance straight-line travelling；
Advance Turning travel
Advance when driving, commutation shift fork axle is stirred to the left is placed in forward gear, drives left shift fork axle, right shift fork axle moves to left；
Left shift fork axle, which moves to left, drives left shift fork to move to left, and then left combined cover is driven to move to left in conjunction with left driving output gear；
Right shift fork axle, which moves to left, drives right shift fork to move to left, and then right combined cover is driven to move to left in conjunction with right driving output gear；
When needing to turn to, control HST output shaft rotates under hydraulic action, and the driving of HST output shaft is mounted on steering shaft
On the rotation of whole gears, and left sun gear and right sun wheel speed are identical, contrary, and power makes after double fluid converges
Revolving speed one of left lateral gear rack and right lateral gear rack increases and another is reduced, and finally promotes to be transferred to left driving and exports
Axis and right revolving speed one for driving output shaft increase and another is reduced, so that revolving speed occur in left track and right side track
Difference, endless-track vehicle advance Turning travel；
Retreat straight-line travelling
It retreats when driving, commutation shift fork axle is stirred to the right is placed in retreating gear, and left shift fork axle, right shift fork axle is driven to move to right；
Left shift fork axle, which moves to right, drives left shift fork to move to right, and then left combined cover is driven to move to right and left driving reverse output gear knot
It closes；
Right shift fork axle, which moves to right, drives right shift fork to move to right, and then right combined cover is driven to move to right and right driving reverse output gear knot
It closes；
HST output shaft does not rotate, and the whole gears being mounted in steering shaft do not rotate, therefore left sun gear and the right sun
Wheel does not rotate, and power then divides two-way through gear to input gear, is transferred to left driving driving gear, another way all the way
It is transferred to right driving driving gear：
The power of left driving driving gear is transferred to by input gear, gear ring frame, left gear ring, left planetary gear, left lateral star
Tooth rest, left driving driving gear, left idle pulley, left reverse input gear, left reverse output gear, left driving are reversed gear output gear
Wheel, left combined cover, left splined hub to left driving output shaft drive left track；
The power of right driving driving gear is transferred to by input gear, gear ring frame, right gear ring, right planetary gear, right lateral star
Tooth rest, right driving driving gear, right idle pulley, right reverse input gear, right reverse output gear, right driving are reversed gear output gear
Wheel, right combined cover, right splined hub to right driving output shaft drive right side track；
Since the revolving speed of left sun gear is identical as the revolving speed of right sun gear, contrary, therefore pass through left planetary gear and the right side
Planetary gear acts on that the power size in steering shaft is identical, contrary, and steering shaft is self-locking, and endless-track vehicle retreats straight-line travelling；
Turning backward traveling
It retreats when driving, commutation shift fork axle is stirred to the right is placed in retreating gear, and left shift fork axle, right shift fork axle is driven to move to right；
Left shift fork axle, which moves to right, drives left shift fork to move to right, and then left combined cover is driven to move to right and left driving reverse output gear knot
It closes；
Right shift fork axle, which moves to right, drives right shift fork to move to right, and then right combined cover is driven to move to right and right driving reverse output gear knot
It closes；
When needing to turn to, HST output shaft rotates under hydraulic action, and the driving of HST output shaft is mounted in steering shaft
Whole gear rotations, since the revolving speed of left sun gear is identical as the revolving speed of right sun gear, contrary, power drives by double fluid
It is dynamic converge after so that revolving speed one of left lateral gear rack and right lateral gear rack increases and another is reduced, be finally transmitted to
Left driving output shaft and right revolving speed one for driving output shaft increase and another is reduced, so that left track and right side track
There is rotational speed difference, endless-track vehicle turning backward traveling.
Beneficial effect：
1) present invention realizes crawler belt two sides using HST continuous turning and mechanical more gear traveling composition power double fluid inputs
Differential speed type turn to, turning radius can consecutive variations, turn to accuracy.
2) steering power is inputted by the sun gear of planetary gear mechanism in the present invention, and driving dynamics are by planetary gear mechanism
Gear ring input, power are exported after converging by the gear ring of planetary gear mechanism, and double fluid input uses planetary gear coaxial transmission, structure
It is compact, reliable operation.
3) present invention is reversed gear in double fluid output rear end setting, guarantees the characteristics of motion of the steering system under identical steering condition
It is constant, improve steering operation convenience and travel safety.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of presently preferred embodiments of the present invention.
Fig. 2 is the gear component structure diagram in presently preferred embodiments of the present invention.
Fig. 3 is the differential steering component structure diagram in presently preferred embodiments of the present invention.
Fig. 4 is the double-current driving assembly structural schematic diagram in presently preferred embodiments of the present invention.
Fig. 5 is the power transfer assembly structural schematic diagram in presently preferred embodiments of the present invention.
Fig. 6 is the power output and conversion operation component structure diagram in presently preferred embodiments of the present invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to the endless-track vehicle speed changer that a kind of postposition of FIG. 1 to FIG. 6 is reversed gear, including the change being mounted in box assembly B
Fast transmission component P1, differential steering component P2, double-current driving assembly P3, power transfer assembly P4 and power output and conversion operation
Component P5, wherein gear component P1 is connect with differential steering component P2, double fluid driving assembly P3, differential steering component P2
It is connect with double-current driving assembly P3, and differential steering component P2 and double fluid driving assembly P3 share same steering shaft S3, double fluid drives
Dynamic component P3 is connect with power transfer assembly P4, and power transfer assembly P4 is connect with power output and conversion operation component P5, tool
Body structure is as follows：
Box assembly B includes main box B1 and auxiliary box body B2；
Gear component P1 includes an axis S11, two axis S2, a gear driving gear G11, two gear driving gear G12, three gears
Driving gear G13, fourth gear driving gear G14, one gear driven gear G21, second gear driven gear G22, three gear driven gear G23,
Four gear driven gear G24, a second gear splined hub H11, three or four gear splined hub H12, a second gear combined cover H21, three or four gear combined covers
H22, a second gear shift fork H31, three or four gear shift fork H32, oil sealing X1, deep groove ball bearing X21, perforated end lid X31, non-porous end cap X32,
Fastening screw X4, gasket X5, retaining ring X6, axle sleeve X7 and snap ring X8, wherein the both ends axis S11 pass through oil sealing X1, zanjon respectively
Ball bearing X21 is mounted on perforated end lid X31, and perforated end lid X31 is mounted on main box B1 by fastening screw X4, gasket X5
On, power is inputted by transmission device from left side, and successively empty set is equipped with a gear driving gear G11, second gear actively on an axis S11
Gear G12, three gear driving gear G13 and fourth gear driving gear G14, are being located at a gear driving gear G11 and two gear driving gear
A second gear splined hub H11 is equipped with by spline fitted on an axis S11 between G12, is being located at three gear driving gear G13 and four
Three or four gear splined hub H12, an axis S11 and a second gear are equipped with by spline fitted on an axis S11 between shelves driving gear G14
Splined hub H11, three or four keep off the affixed transmissions of splined hub H12, are provided on a second gear splined hub H11 and insert for a second gear shift fork H31
It is provided on second gear the combined cover H21, three or four gear splined hub H12 entered and is combined for three or four gears of three or four gear shift fork H32 insertions
Set H22, a second gear splined hub H11 and a second gear combined cover H21 be driven by inside and outside spline fitted, three or four keep off splined hub H12 and
Three or four gear combined cover H22 are driven by inside and outside spline fitted, and a second gear combined cover H21 exterior circumferential is provided with allocating slot, a second gear
Shift fork H31 is inserted into the allocating slot of a second gear combined cover H21 to limit the axial position of a second gear combined cover H21, three or four gear combined covers
H22 exterior circumferential is provided with allocating slot, and the allocating slot of three or four gear shift fork H32 insertion, three or four gear combined cover H22 is combined with limiting three or four gears
Cover the axial position of H22；Two both ends axis S2 pass through oil sealing X1 respectively, deep groove ball bearing X21 is mounted on non-porous end cap X32, nothing
Hole end cap X32 is mounted on main box B1 by fastening screw X4, gasket X4, on two axis S2 by be disposed with a gear from
Moving gear G21, second gear driven gear G22, three gear driven gear G23 and four gear driven gear G24, three gears of the power from two axis S2
Driven gear G23 output；Retaining ring X6 and axle sleeve X7 are respectively arranged on one axis S11 and two axis S2；
Differential steering component P2 includes HST input shaft S12, HST output shaft S13, steering shaft S3, drive bevel gear G31, row
Star gear G32, driven wheel of differential G33, left sun gear G341, right sun gear G342, driven gear G26, planetary gear shaft are turned to
P21, connecting shaft P22, thrust bearing X23, needle bearing X24, perforated end lid X31, non-porous end cap X32, fastening screw X4, sealing
Pad X5 and snap ring X8, wherein the one end steering shaft S3 is mounted on non-porous end cap X32 by thrust bearing X23, non-porous end cap X32
It is mounted on main box B1 by fastening screw X4, and this end is provided with drive bevel gear G31, the steering shaft S3 other end passes through rolling
Needle bearing X24 is installed on right lateral gear rack P23, is then mounted on main box B1 by thrust bearing X23, and this end is arranged
There is right sun gear G342 and turns to driven gear G26；Connecting shaft P22 is mounted on by needle bearing X24 and thrust bearing X23 to be turned
To on axis S3, and the driven wheel of differential G33 engaged with drive bevel gear G31, connecting shaft P22 are provided in the one end connecting shaft P22
The other end is provided with left sun gear G341；Planetary gear shaft P21 is fixed on differential steering end cap, and planetary gear G32 is mounted on
On planetary gear shaft P21, drive bevel gear G31, planetary gear shaft P21, planetary gear G32 and driven wheel of differential G33 composition are anti-
Direction transmission mechanism；HST is mounted on by spline, snap ring X8 with the diversion driving-gear G25 that driven gear G26 is often engaged is turned to
On output shaft S13；
The HST input shaft S12 of hydrostatic stepless speed change device is connect with an axis S11, and steering power is by HST input shaft S12
Input, HST output shaft S13 drives diversion driving-gear G25, and then drives and turn to driven gear G26, turns to driven gear G26
Steering shaft S3 is driven, and then drives right sun gear G342, drive bevel gear G31；
Double-current driving assembly P3 includes steering shaft S3, left driving driving gear G351, right driving driving gear G352, left lateral
Star gear G361, right planetary gear G362, left gear ring G371, right gear ring G372, input gear G38, connecting shaft P22, left lateral star
Tooth rest P23, gear ring frame P24, right lateral gear rack P25, deep groove ball bearing X21, flange bearing X22, thrust bearing X23, rolling
Needle bearing X24, perforated end lid X31, non-porous end cap X32, fastening screw X4, gasket X5 and snap ring X8, right lateral gear rack P25
It is mounted on steering shaft S3 by needle bearing X24, left lateral gear rack P23 is mounted on connecting shaft P22 by needle bearing X24
On, left driving driving gear G351 and left planetary gear G361 are provided on left lateral gear rack P23, left planetary gear G361 is equal
For cloth around left sun gear G341, left planetary gear G361 quantity is n (in n 2,3,4 any one)；Right lateral gear rack
Right driving driving gear G352 and right planetary gear G362 are provided on P25, right planetary gear G362 is evenly arranged on right sun gear
Around G342, right planetary gear G362 quantity is n (n can be any one of 2,3,4)；
Gear ring frame P24 is mounted in the middle part of steering shaft S3 by deep groove ball bearing X21, is provided on the outside of gear ring frame P24 and three
It is provided with left gear ring G371 and right gear ring G372 on the inside of the input gear G38 that gear driven gear G23 is often engaged, gear ring frame P24, it is left
Gear ring G371 is often engaged with left planetary gear G361, and right gear ring G372 is often engaged with right planetary gear G362, left planetary gear
G361 is often engaged with left sun gear G341, and right planetary gear G362 is often engaged with right sun gear G342；
Since right sun gear G342 is often engaged with right planetary gear G362, right sun gear G342 rotation drives right planetary gear
G362 rotation, so that right gear ring frame P34 is rotated；
Drive bevel gear G31 rotation drives planetary gear G32 rotation, and then drives driven wheel of differential G33 rotation, from mantle
Gear G33 drives connecting shaft P22 rotation, and then drives left sun gear G341, since planetary gear shaft P21 is fixed on differential steering
On end cap, therefore driven wheel of differential G33 is identical as the revolving speed of drive bevel gear G31, contrary, i.e., left sun gear G341's turns
It is fast identical, contrary with the revolving speed of right sun gear G342；
Since left sun gear G341 is often engaged with left planetary gear G361, left sun gear G341 rotation drives left lateral star tooth
G361 rotation is taken turns, so that left gear ring frame P32 is rotated；
Since the revolving speed and the revolving speed of right sun gear G342 of left sun gear G341 are identical, contrary, therefore left gear ring frame P32
It is identical, contrary with the revolving speed of right gear ring frame P34, power by double fluid driving converge after, left driving driving gear G351
Go out with right driving driving gear G352 and turn now to difference, realizes differential steering；
Power transfer assembly P4 includes that idler shaft S4, left idle pulley G41, right idle pulley G42, reverse gear shaft S5, a left side reverse gear and input tooth
Take turns G511, left reverse output gear G512, right reverse input gear G521, right reverse output gear G522, deep groove ball bearing
X21, non-porous end cap X32, fastening screw X4, gasket X5, retaining ring X6, axle sleeve X7 and the both ends snap ring X8, idler shaft S4 pass through depth
Ditch ball bearing X21 is mounted on non-porous end cap X32, and non-porous end cap X32 is mounted on main box by fastening screw X4, gasket X5
On B1, left idle pulley G41 and right idle pulley G42 are mounted on idler shaft S4 by axle sleeve X7, snap ring X8, left idle pulley G41 and left driving
Driving gear G351 is often engaged, and right idle pulley G42 is often engaged with right driving driving gear G352；The both ends reverse gear shaft S5 pass through deep-groove ball
Bearing X21 is mounted on non-porous end cap X32, and non-porous end cap X32 is mounted on main box B1 by fastening screw X4, gasket X5
On, left reverse input gear G511 is connect with left reverse output gear G512 by spline fitted, is pacified by axle sleeve X7, snap ring X8
Mounted in the left end reverse gear shaft S5, right reverse input gear G521 is connect with right reverse output gear G522 by spline fitted, is passed through
Axle sleeve X7, snap ring X8 are mounted on reverse gear shaft S5 right end, and left reverse input gear G511 is often engaged with left idle pulley G41, and the right side is reversed gear defeated
Enter gear G521 often to engage with right idle pulley G42；
Power output and conversion operation component P5 include left driving output shaft S61, left driving reverse output gear G61, a left side
Drive output gear G62, right driving output shaft S62, right driving output gear G63, right driving reverse output gear G64, Zuo Hua
Key hub H13, left combined cover H23, left shift fork H33, right splined hub H14, right combined cover H24, right shift fork H34, commutation shift fork axle H4,
It is spring steel ball self-locking mechanism Z, oil sealing X1, deep groove ball bearing X21, flange bearing X22, needle bearing X24, perforated end lid X31, tight
Gu screw X4, gasket X5, retaining ring X6, axle sleeve X7, snap ring X8 and the one end sealing ring X9, right driving output shaft S62 pass through oil sealing
X1, deep groove ball bearing X21 are mounted on perforated end lid X31, and perforated end lid X31 is mounted on by fastening screw X4, gasket X5
On main box B1, the right driving output shaft S62 other end is mounted on main box B1 by deep groove ball bearing X21；Right driving output
Gear G63 and right driving reverse output gear G64 are mounted on right driving output shaft S62 by axle sleeve X6 empty set, are being located at the right side
It drives and is installed on the right driving output shaft S62 between output gear G63 and right driving reverse output gear G64 by spline fitted
Have right splined hub H14, be equipped on right splined hub H14 for right shift fork H34 insertion right combined cover H24, right splined hub H14 with
Right combined cover H24 is driven by inside and outside spline fitted, and right combined cover H24 exterior circumferential is provided with allocating slot, and right shift fork H34 insertion is right
To limit the axial position of right combined cover H24, right driving output gear G63 is often nibbled the allocating slot of combined cover H24 with right idle pulley G42
It closes, right driving reverse output gear G64 is often engaged with right reverse output gear G522；The one end left driving output shaft S61 passes through oil
Envelope X1, deep groove ball bearing X21 are mounted on perforated end lid X31, and perforated end lid X31 is installed by fastening screw X4, gasket X5
On main box B1, the left driving output shaft S61 other end is mounted in right driving output shaft S62 by snap ring X8, and left driving is fallen
Gear output gear G61, left driving output gear G62 are mounted on left driving output shaft S61 by axle sleeve X6 empty set, are being located at a left side
It drives and is installed on the left driving output shaft S61 between reverse output gear G61 and left driving output gear G62 by spline fitted
Have left splined hub H13, be equipped on left splined hub H13 for left shift fork H33 insertion left combined cover H23, left splined hub H13 with
Left combined cover H23 is driven by inside and outside spline fitted, and left combined cover H23 exterior circumferential is provided with allocating slot, and left shift fork H33 insertion is left
The allocating slot of combined cover H23 is to limit the axial position of left combined cover H23；Left driving output gear G61 is often nibbled with left idle pulley G41
It closes, left driving reverse output gear G62 is often engaged with left reverse output gear G512；
Commutation shift fork axle H4 is mounted on main box B1 by spring steel ball self-locking mechanism Z, sealing ring X9, and commutate shift fork axle
Left shift fork H33 and right shift fork H34 are installed on H4.
1) power transmission route：
One gear：One second gear shift fork H31 drives a second gear combined cover H21 to move to left, and power is by an axis S11 through a second gear splined hub
H31 be transferred to a second gear combined cover H21, one gear driving gear G11, one gear driven gear G21 be transferred to two axis S2, from three gear from
Moving gear G23 output；
Second gear：One second gear shift fork H31 drives a second gear combined cover H21 to move to right, and power is by an axis S11 through a second gear splined hub
H31 is transferred to a second gear combined cover H21, two gear driving gear G12, second gear driven gear G24 and is transferred to two axis S2, from three gear from
Moving gear G23 output；
Three gears：Three or four gear shift fork H32 drive three or four gear combined cover H22 to move to left, and power is by an axis S11 through three or four gear splined hubs
H12 is transferred to three or four gear combined cover H22, three gear driving gear G13, by three gear driven gear G23 outputs；
Four gears：Three or four gear shift fork H32 drive three or four gear combined cover H22 to move to right, and power is by an axis S11 through three or four gear splined hubs
H12 be transferred to three or four gear combined cover H22, four gear driving gear G14, four gear driven gear G24 be transferred to two axis S2, from three gear from
Moving gear G23 output；
2) advance straight-line travelling
Advance when driving, commutation shift fork axle H4 is stirred to the left is placed in forward gear, drives left shift fork axle H41, right shift fork axle
H44 is moved to left；
Left shift fork axle H41, which is moved to left, drives left shift fork H33 to move to left, and then drives left combined cover H23 to move to left and export with left driving
Gear G62 is combined；
Right shift fork axle H44, which is moved to left, drives right shift fork H34 to move to left, and then drives right combined cover H24 to move to left and export with right driving
Gear G73 is combined；
HST output shaft S13 does not rotate, since HST output shaft S13 does not rotate, the whole gears being mounted on steering shaft S3
It does not rotate, therefore left sun gear G34 and right sun gear G35 do not rotate, power is through gear to input gear G38, then
Divide two-way, is transferred to left driving driving gear G351 all the way, another way is transferred to right driving driving gear G352：
The power of left driving driving gear G351 is transferred to by input gear G38, gear ring frame P24, left gear ring G371, left lateral
Star gear G361, left lateral gear rack P23, left driving driving gear G351, left idle pulley G41, left driving output gear G61, a left side
Combined cover H23, left splined hub H13 drive left track to left driving output shaft S61；
The power of right driving driving gear G352 is transferred to by input gear G38, gear ring frame P24, right gear ring G372, right lateral
Star gear G362, right lateral gear rack P25, right driving driving gear G352, right idle pulley G42, right driving output gear G63, the right side
Combined cover H24, right splined hub H14 drive right side track to right driving output shaft S62；
Since the revolving speed and the revolving speed of right sun gear G342 of left sun gear G341 are identical, contrary, therefore pass through left lateral star
Gear G361 acts on that the power size on steering shaft S3 is identical, contrary, and steering shaft S3 is self-locking with right planetary gear G362, carries out
Band vehicle advance straight-line travelling；
3) advance Turning travel
Advance when driving, commutation shift fork axle H4 is stirred to the left is placed in forward gear, drives left shift fork axle H41, right shift fork axle
H44 is moved to left；
Left shift fork axle H41, which is moved to left, drives left shift fork H33 to move to left, and then drives left combined cover H23 to move to left and export with left driving
Gear G62 is combined；
Right shift fork axle H44, which is moved to left, drives right shift fork H34 to move to left, and then drives right combined cover H24 to move to left and export with right driving
Gear G73 is combined；
When needing to turn to, control HST output shaft S13 rotates under hydraulic action, and HST output shaft S13 driving is mounted on
Whole gears rotation on steering shaft S3, and left sun gear G341 and right sun gear G342 revolving speed are identical, contrary, power warp
It crosses and makes revolving speed one of left lateral gear rack P23 and right lateral gear rack P25 to increase after double fluid converges and another is reduced, most
Revolving speed one that is transferred to left driving output shaft S61 and right driving output shaft S62 is promoted to increase and another reduction eventually, so that
There is rotational speed difference, endless-track vehicle advance Turning travel in left track and right side track；
4) straight-line travelling is retreated
It retreats when driving, commutation shift fork axle H4 is stirred to the right is placed in retreating gear, drives left shift fork axle H41, right shift fork axle
H44 is moved to right；
Left shift fork axle H41, which is moved to right, drives left shift fork H33 to move to right, and then drives left combined cover H23 to move to right and reverse gear with left driving
Output gear G61 is combined；
Right shift fork axle H44, which is moved to right, drives right shift fork H34 to move to right, and then drives right combined cover H24 to move to right and reverse gear with right driving
Output gear G64 is combined；
HST output shaft S13 does not rotate, since HST output shaft S13 does not rotate, the whole gears being mounted on steering shaft S3
Do not rotate, therefore left sun gear G341 and right sun gear G342 do not rotate, power through gear to input gear G38, and
After divide two-way, be transferred to left driving driving gear G351 all the way, another way is transferred to right driving driving gear G352：
The power of left driving driving gear G351 is transferred to by input gear G38, gear ring frame P24, left gear ring G371, left lateral
Star gear G361, left lateral gear rack P23, left driving driving gear G351, left idle pulley G41, left reverse input gear G511, a left side
Reverse output gear G512, left driving reverse output gear G61, left combined cover H23, left splined hub H13 to left driving output shaft
S61 drives left track；
The power of right driving driving gear G352 is transferred to by input gear G38, gear ring frame P24, right gear ring G372, right lateral
Star gear G362, right lateral gear rack P25, right driving driving gear G352, right idle pulley G42, right reverse input gear G521, the right side
Reverse output gear G522, right driving output gear G63, right combined cover H24, right splined hub H14 to right driving output shaft S62,
Drive right side track；
Since the revolving speed and the revolving speed of right sun gear G342 of left sun gear G341 are identical, contrary, therefore pass through left lateral star
Gear G361 acts on that the power size on steering shaft S3 is identical, contrary, and steering shaft S3 is self-locking with right planetary gear G362, carries out
Band vehicle rollback straight-line travelling；
5) turning backward travels
It retreats when driving, commutation shift fork axle H4 is stirred to the right is placed in retreating gear, drives left shift fork axle H41, right shift fork axle
H44 is moved to right；
Left shift fork axle H41, which is moved to right, drives left shift fork H33 to move to right, and then drives left combined cover H23 to move to right and reverse gear with left driving
Output gear G61 is combined；
Right shift fork axle H44, which is moved to right, drives right shift fork H34 to move to right, and then drives right combined cover H24 to move to right and reverse gear with right driving
Output gear G64 is combined；
When needing to turn to, control HST output shaft S13 rotates under hydraulic action, and HST output shaft S13 driving is mounted on
Whole gears rotation on steering shaft S3, since the revolving speed of left sun gear G341 is identical as the revolving speed of right sun gear G342, direction
On the contrary, power is after double fluid driving converges, so that revolving speed one of left lateral gear rack P23 and right lateral gear rack P25
Increase and another is reduced, be finally transmitted to left driving output shaft S61 and right driving revolving speed one of output shaft S62 increases and it is another
One reduction, so that rotational speed difference, endless-track vehicle turning backward traveling occur in left track and right side track.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of endless-track vehicle speed changer that postposition is reversed gear, gear component, differential including being mounted in box assembly turn
To component, double-current driving assembly, power transfer assembly and power output and conversion operation component, which is characterized in that gear
Component is connect with differential steering component, double-current driving assembly, and differential steering component is connect with double-current driving assembly, and differential steering
Component and double-current driving assembly share same steering shaft, and double-current driving assembly is connect with power transfer assembly, power transfer assembly
It is connect with power output and conversion operation component, specific structure is as follows：
Box assembly includes main box and auxiliary box body；
One axis and two axis be installed in gear component, on main box, on an axis successively empty set be equipped with a gear driving gear,
Two gear driving gear, three gear driving gears and fourth gear driving gear, and second gear flower is equipped with by spline fitted on an axis
Key hub and three or four gear splined hubs, an axis and a second gear splined hub, three or four keep off the affixed transmissions of splined hub, are arranged in a second gear splined hub
There is the second gear combined cover for second gear shift fork insertion, three for three or four gear shift fork insertions are provided in three or four gear splined hubs
Four gear combined covers, a second gear combined cover exterior circumferential are provided with the allocating slot for second gear shift fork insertion, and three or four keep off outside combined covers
Portion is circumferentially provided with the allocating slot for three or four gear shift fork insertions；Keep off what driving gear engaged with one by being disposed on two axis
One gear driven gear, the second gear driven gear engaged with two gear driving gear, the three gear driven tooths engaged with three gear driving gears
Wheel and the four gear driven gears engaged with fourth gear driving gear；
In differential steering component, steering shaft is mounted on main box and differential steering end cap, and steering shaft one end is provided with actively
Bevel gear, the steering shaft other end are provided with right sun gear and turn to driven gear；Connecting shaft is mounted in steering shaft, and is being connected
Axis one end is provided with the driven wheel of differential engaged with drive bevel gear, and the connecting shaft other end is provided with left sun gear；Planetary gear
Axis is fixed on differential steering end cap, and planetary gear is mounted in planetary gear shaft；
The HST input shaft and an axis connection of hydrostatic stepless speed change device are pacified on the HST output shaft of hydrostatic stepless speed change device
Equipped with the diversion driving-gear often engaged with steering driven gear；
In double-current driving assembly, right lateral gear rack is mounted in steering shaft, and left lateral gear rack is mounted in connecting shaft, left lateral
Left driving driving gear and left planetary gear are provided on gear rack, multiple left planetary gears are evenly arranged on around left sun gear；
Right driving driving gear and right planetary gear are provided on right lateral gear rack, multiple right planetary gears are evenly arranged on right sun gear week
It encloses；
Gear ring frame is mounted in the middle part of steering shaft, and the input gear often engaged with three gear driven gears, tooth are provided on the outside of gear ring frame
It is provided with left gear ring and right gear ring on the inside of coil, left gear ring is often engaged with left planetary gear, and right gear ring is often nibbled with right planetary gear
It closes, left planetary gear is often engaged with left sun gear, and right planetary gear is often engaged with right sun gear；
In power transfer assembly, idler shaft, reverse gear shaft are mounted on main box, and left idle pulley and right idle pulley are mounted on idler shaft,
Left idle pulley is often engaged with left driving driving gear, and right idle pulley is often engaged with right driving driving gear；Reverse gear shaft left end is equipped with a left side
Reverse input gear and left reverse output gear, reverse gear shaft right end are equipped with right reverse input gear and right reverse output gear,
Left reverse input gear is often engaged with left idle pulley, and right reverse input gear is often engaged with right idle pulley；
In power output and conversion operation component, left driving output shaft one end is mounted on main box, and left driving output shaft is another
End is mounted in right driving output shaft, and left driving reverse output gear, left driving output gear and left splined hub are mounted on left drive
On dynamic output shaft, the left combined cover for the insertion of left shift fork, left splined hub and left combined cover are installed in left splined hub
External splines cooperation transmission, left combined cover exterior circumferential are provided with the allocating slot for the insertion of left shift fork, and left shift fork is inserted into left combined cover
Allocating slot to limit the axial position of left combined cover；Left driving output gear is often engaged with left idle pulley, left to drive the output gear that reverses gear
Wheel is often engaged with left reverse output gear；Right driving output shaft both ends are separately mounted on main box, right driving output gear, the right side
Driving reverse output gear and right splined hub are mounted on right driving output shaft, are equipped in right splined hub and are inserted into for right shift fork
Right combined cover, right splined hub is driven with right combined cover by inside and outside spline fitted, and right combined cover exterior circumferential, which is provided with, to be used for
The allocating slot of right shift fork insertion, right shift fork are inserted into the allocating slot of right combined cover to limit the axial position of right combined cover, right driving output
Gear is often engaged with right idle pulley, and right driving reverse output gear is often engaged with right reverse output gear；Commutation shift fork axle is mounted on
On main box, left shift fork and right shift fork are mounted in commutation shift fork axle.
2. the endless-track vehicle speed changer that a kind of postposition according to claim 1 is reversed gear, which is characterized in that a second gear splined hub
It is mounted on the axis between a gear driving gear and two gear driving gear.
3. the endless-track vehicle speed changer that a kind of postposition according to claim 1 is reversed gear, which is characterized in that three or four gear splined hubs
It is mounted on the axis between three gear driving gears and fourth gear driving gear.
4. the endless-track vehicle speed changer that a kind of postposition according to claim 1 is reversed gear, which is characterized in that the left lateral star number of gears
Amount is any one number in 2,3,4.
5. the endless-track vehicle speed changer that a kind of postposition according to claim 1 is reversed gear, which is characterized in that the right lateral star number of gears
Amount is any one number in 2,3,4.
6. the endless-track vehicle speed changer that a kind of postposition according to claim 1 is reversed gear, which is characterized in that a left side, which is reversed gear, inputs tooth
Wheel is connect with left reverse output gear by spline fitted.
7. the endless-track vehicle speed changer that a kind of postposition according to claim 1 is reversed gear, which is characterized in that the right side, which is reversed gear, inputs tooth
Wheel is connect with right reverse output gear by spline fitted.
8. the endless-track vehicle speed changer that a kind of postposition according to claim 1 is reversed gear, which is characterized in that left splined hub installation
On the left driving output shaft being located between left driving output gear and left driving reverse output gear.
9. the endless-track vehicle speed changer that a kind of postposition according to claim 1 is reversed gear, which is characterized in that right splined hub installation
On the right driving output shaft being located between right driving output gear and right driving reverse output gear.
10. the endless-track vehicle speed changer that a kind of described in any item postpositions are reversed gear according to claim 1~9, which is characterized in that carry out
Steps are as follows for band vehicle speed variation transmission traveling：
1) commutation shift fork axle is stirred to the left and is placed in forward gear, left shift fork axle, right shift fork axle is driven to move to left；
Left shift fork axle, which moves to left, drives left shift fork to move to left, and then left combined cover is driven to move to left in conjunction with left driving output gear；
Right shift fork axle, which moves to left, drives right shift fork to move to left, and then right combined cover is driven to move to left in conjunction with right driving output gear；
HST output shaft does not rotate, and the whole gears being mounted in steering shaft do not rotate, therefore left sun gear and right sun gear are not
Rotation, power then divide two-way through gear to input gear, are transferred to left driving driving gear, another way transmitting all the way
To right driving driving gear：
The power of left driving driving gear is transferred to by input gear, gear ring frame, left gear ring, left planetary gear, left planetary gear
Frame, left driving driving gear, left idle pulley, left driving output gear, left combined cover, left splined hub to left driving output shaft, driving
Left track；
The power of right driving driving gear is transferred to by input gear, gear ring frame, right gear ring, right planetary gear, right planetary gear
Frame, right driving driving gear, right idle pulley, right driving output gear, right combined cover, right splined hub to right driving output shaft, driving
Right side track；
Since the revolving speed of left sun gear is identical as the revolving speed of right sun gear, contrary, therefore pass through left planetary gear and right lateral star
Power size of the gearing in steering shaft is identical, contrary, and steering shaft is self-locking, endless-track vehicle advance straight-line travelling；
2) commutation shift fork axle is stirred to the left and is placed in forward gear, left shift fork axle, right shift fork axle is driven to move to left；
Left shift fork axle, which moves to left, drives left shift fork to move to left, and then left combined cover is driven to move to left in conjunction with left driving output gear；
Right shift fork axle, which moves to left, drives right shift fork to move to left, and then right combined cover is driven to move to left in conjunction with right driving output gear；
When needing to turn to, control HST output shaft rotates under hydraulic action, and the driving of HST output shaft is mounted in steering shaft
Whole gear rotations, and left sun gear and right sun wheel speed are identical, contrary, power makes left lateral after double fluid converges
Revolving speed one of gear rack and right lateral gear rack increases and another is reduced, finally promote to be transferred to left driving output shaft and
Revolving speed one of right driving output shaft increases and another is reduced, so that rotational speed difference occur in left track and right side track, carries out
Band vehicle advance Turning travel；
3) commutation shift fork axle is stirred to the right and is placed in retreating gear, left shift fork axle, right shift fork axle is driven to move to right；
Left shift fork axle, which moves to right, drives left shift fork to move to right, and then left combined cover is driven to move to right in conjunction with left driving reverse output gear；
Right shift fork axle, which moves to right, drives right shift fork to move to right, and then right combined cover is driven to move to right in conjunction with right driving reverse output gear；
HST output shaft does not rotate, and the whole gears being mounted in steering shaft do not rotate, therefore left sun gear and right sun gear are not
Rotation, power then divide two-way through gear to input gear, are transferred to left driving driving gear, another way transmitting all the way
To right driving driving gear：
The power of left driving driving gear is transferred to by input gear, gear ring frame, left gear ring, left planetary gear, left planetary gear
Frame, left driving driving gear, left idle pulley, left reverse input gear, left reverse output gear, left driving reverse output gear, a left side
Combined cover, left splined hub to left driving output shaft drive left track；
The power of right driving driving gear is transferred to by input gear, gear ring frame, right gear ring, right planetary gear, right planetary gear
Frame, right driving driving gear, right idle pulley, right reverse input gear, right reverse output gear, right driving reverse output gear, the right side
Combined cover, right splined hub to right driving output shaft drive right side track；
Since the revolving speed of left sun gear is identical as the revolving speed of right sun gear, contrary, therefore pass through left planetary gear and right lateral star
Power size of the gearing in steering shaft is identical, contrary, and steering shaft is self-locking, and endless-track vehicle retreats straight-line travelling；
4) commutation shift fork axle is stirred to the right and is placed in retreating gear, left shift fork axle, right shift fork axle is driven to move to right；
Left shift fork axle, which moves to right, drives left shift fork to move to right, and then left combined cover is driven to move to right in conjunction with left driving reverse output gear；
Right shift fork axle, which moves to right, drives right shift fork to move to right, and then right combined cover is driven to move to right in conjunction with right driving reverse output gear；
When needing to turn to, HST output shaft rotates under hydraulic action, and HST output shaft drives the whole being mounted in steering shaft
Gear rotation, since the revolving speed of left sun gear is identical as the revolving speed of right sun gear, contrary, power converges by double fluid driving
After conjunction, so that revolving speed one of left lateral gear rack and right lateral gear rack increases and another is reduced, it is finally transmitted to left drive
Dynamic output shaft and right revolving speed one for driving output shaft increase and another is reduced, so that left track and right side track occur
Rotational speed difference, endless-track vehicle turning backward traveling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036329.8A CN108825740B (en) | 2018-09-06 | 2018-09-06 | Rear reverse gear tracked vehicle transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036329.8A CN108825740B (en) | 2018-09-06 | 2018-09-06 | Rear reverse gear tracked vehicle transmission |
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| Publication Number | Publication Date |
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| CN108825740A true CN108825740A (en) | 2018-11-16 |
| CN108825740B CN108825740B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811036329.8A Active CN108825740B (en) | 2018-09-06 | 2018-09-06 | Rear reverse gear tracked vehicle transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271427A (en) * | 2020-04-01 | 2020-06-12 | 浙江四方集团公司 | Integral double HST planetary differential steering gearbox |
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| CN106763563A (en) * | 2017-02-15 | 2017-05-31 | 湖南农业大学 | A kind of ratio steering-type speed changer for crawler equipment |
| CN208793533U (en) * | 2018-09-06 | 2019-04-26 | 湖南农业大学 | A kind of endless-track vehicle speed changer of power double fluid input |
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| JPH07223450A (en) * | 1994-02-14 | 1995-08-22 | Honda Motor Co Ltd | Transmission |
| US20070072728A1 (en) * | 2000-09-05 | 2007-03-29 | Yoshitaka Ishimaru | Hydrostatic transmission and power train for vehicle |
| KR20150026476A (en) * | 2013-09-03 | 2015-03-11 | 엘에스엠트론 주식회사 | Continuously variable transmission |
| CN105114606A (en) * | 2015-09-16 | 2015-12-02 | 湖南省农友机械集团有限公司 | Dual-power input type three-gear tracked vehicle transmission |
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| CN106594221A (en) * | 2017-02-15 | 2017-04-26 | 湖南农业大学 | Proportional steering type speed changer for crawler-type harvester |
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| CN111271427A (en) * | 2020-04-01 | 2020-06-12 | 浙江四方集团公司 | Integral double HST planetary differential steering gearbox |
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|---|---|
| CN108825740B (en) | 2021-04-09 |
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