CN105090431B - A kind of endless-track vehicle integrated form variator - Google Patents
A kind of endless-track vehicle integrated form variator Download PDFInfo
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- CN105090431B CN105090431B CN201510589885.8A CN201510589885A CN105090431B CN 105090431 B CN105090431 B CN 105090431B CN 201510589885 A CN201510589885 A CN 201510589885A CN 105090431 B CN105090431 B CN 105090431B
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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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
- F16H47/08—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members 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
- F16H2702/00—Combinations of two or more transmissions
- F16H2702/02—Mechanical transmissions with planetary gearing combined with one or more other mechanical transmissions
Abstract
A kind of endless-track vehicle integrated form variator, wherein, is arranged on casing after power input mechanism, double dynamical input mechanism, intermediate transmission and arrestment mechanism, differential speed type driving mechanism and PTO power output mechanism are integrated；Left track driving mechanism, right-hand track chiain driving mechanism structure are identical is symmetrically mounted on casing both sides, power input mechanism is connected with PTO power output mechanism, double dynamical input mechanism respectively, the transmission of double dynamical input mechanism is connected with intermediate transmission and arrestment mechanism, intermediate transmission and arrestment mechanism are connected with differential speed type driving mechanism, differential speed type driving mechanism outputing power drives left track driving mechanism and right-hand track chiain driving mechanism；Solve mechanically direct transmission and the problem that the electrodeless formula of hydraulic pressure is combined by Change-over knot trap, be effectively improved the high handling with endless-track vehicle of transmission efficiency；It is integrated with brake unit and the transfer of hydraulic motor control planet carrier gear rotating simultaneously, effectively reduces the oeverall quality of variator, and then reduce energy consumption.
Description
Technical field
The present invention relates to endless-track vehicle actuation techniques field, particularly relate to a kind of endless-track vehicle integrated form variator.
Background technology
China is Rice Production maximum in the world and country of consumption, Annual planting area about 28,600,000 hectares, account for the 1/5 of whole world Monitoring of Paddy Rice Plant Area, produce 1.85 hundred million tons of rice per year, account for the 1/3 of Gross World Product, paddy fields in south china region mainly comprises ten provinces such as Hunan, Jiangxi, Guangdong, Guangxi, and rice yield accounts for the whole nation more than 60%, is the main producing region of China Oryza sativa L..Paddy fields in south china essentialspecies planting paddy rice and cole crop, and almost long-term hydrops in rice field, winter is without frost, soil moistens, and bearing capacity of soil is poor, after wheel-type working machine tool enters rice field, sinkage is big, the minimum earth point of wheel exceedes plough sole, enters and causes that the gear teeth destroy plough sole structure, causes plough sole soft.And along with after the operation repeatedly of wheel-type working machine tool, the plough sole degree of depth is constantly deepened, every farming is once, to promote cultivating plough sediment layer deepen once, when plough sole deepen after, it is necessary to larger diameter wheel and more high-power, weight Work machine drive, in turn result in vicious cycle, make paddy field become deep mud feet fields, time to a certain extent finally, be easily caused the cultivated land machinery such as facility, rice transplanter, united reaper and cannot go to the field operation.Although submerged weir flow can improve crop yield; reduce heavy metal pollution; reduce fertilizer amount and the water and soil that protects the fields; but continuously submerging will make rice field softer near rice harvesting season; Conventional drum agricultural machinery enters rice field very easily to be occurred skidding or sunken car, and then cannot complete elemental operation.
Owing to the contact area of endless-track vehicle is big, and the grounding pressure of crawler belt is little, and its numerical value is close with the grounding pressure of people, is particularly suitable for paddy fields in south china operation, and the crawler-type work vehicle of current paddy fields in south china mainly has caterpillar tractor, crawler-type harvester；But the variable ratio drive system of these endless-track vehicles generally adopts two types, one is Purely mechanical power drive system transmission power, it has simple in construction, efficiency advantages of higher, but Purely mechanical power drive mechanism, gear shift operation is complicated, drive a car or the technical ability of tractor simultaneously because agricultural machinery operator does not generally possess, to clutch, throttle, gearshift cooperation be difficult to control, and then limit the development of tractor；The second is the electrodeless drive system adopting hydraulic pump-motor integrated system to achieve crawler tractor, owing to adopting the crawler tractor driver behavior of electrodeless drive system to be improved, agricultural machinery operator need not participate in the technical training of specialty, only need simple exercise can grasp driving efficiency, thus accepted by users, and achieve extraordinary effect, but after adding hydraulic system, improve complexity and the manufacturing cost of operating system.In daily production and application process, caterpillar tractor generally to mount agricultural machinery and implement, and agricultural machinery and implement are when farm work, electromotor is typically in large throttle state, close to constant engine operating mode, speed change is little, and the power of machinery is all relatively larger with moment of torsion, so it is easily caused hydraulic system and there is the problem such as energy consumption height, big, the poor high temperature stability of caloric value, even can not realize mouldboard plow farming industry, seriously limit the range of application of caterpillar tractor, too increase energy expenditure.
Simultaneously because the operation principle of endless-track vehicle driving system is similar with the travel operation principle of two-wheeled agricultural machinery, variator be generally integrated turn to, differential, main deceleration, one or more functions such as braking；But at least it is integrated with turning function, what its turning function generally adopted steering linkage operation jaw clutch and multi-disc brake turns to scheme, the process of implementing is: when caterpillar tractor vehicle turns to the left, operator left steering pull bar makes left side jaw clutch separate and the braking of left side output shaft, owing to crawler tractor vehicle left side transfer motion power interrupts and brake stopping the rotation, now under the driving of tractor right side power, facility realize turning to the left；In like manner can realizing right hand steering, but this steering mechanism adopts and separates and realize with brake in conjunction with jaw clutch, it turns to precision low, and steering manipulation is poor.
Summary of the invention
Technical problem solved by the invention is in that to provide a kind of endless-track vehicle integrated form variator, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of endless-track vehicle integrated form variator, including power input mechanism, double dynamical input mechanism, intermediate transmission and arrestment mechanism, differential speed type driving mechanism, left track driving mechanism, right-hand track chiain driving mechanism, PTO power output mechanism and casing；Wherein, power input mechanism, double dynamical input mechanism, intermediate transmission and arrestment mechanism, differential speed type driving mechanism and PTO power output mechanism integrated after be arranged on casing；Left track driving mechanism, right-hand track chiain driving mechanism structure is identical is symmetrically mounted on casing both sides, power input mechanism respectively with PTO power output mechanism, double dynamical input mechanism connects, power through power input mechanism input, a part of power is exported by PTO power output mechanism, external procedure part is imparted power to by PTO power output mechanism, another part power is through double dynamical input mechanism transmission to intermediate transmission and arrestment mechanism, intermediate transmission and arrestment mechanism are connected with differential speed type driving mechanism, the left track driving mechanism of driving that outputed power by differential speed type driving mechanism and right-hand track chiain driving mechanism；Power input mechanism is used for realizing switching with low speed at a high speed, and the output that double dynamical input mechanism is used for forward gear, reverses gear, differential speed type driving mechanism is used for realizing course changing control；The concrete attachment structure of each mechanism is as follows:
Power input mechanism is connected with PTO power output mechanism, and wherein, power inputs first axle one end and is arranged on input lid, and the other end is arranged on casing, and input lid is fastened on casing；Power inputs and is set with duplex sliding power shift gear on the first axle, and PTO duplex sliding power shift gear is fitted with power shifting shift fork, and inputs the first axle one side end at power and be provided with power input bevel gear；Input at the power being positioned at power input bevel gear upper end simultaneously and the first axle is set with sleeve, input the between centers gap of the first axle for motivation of adjustment and power input bevel gear is carried out spacing；
PTO power power transmission shaft one end is arranged on PTO power outer end cap, and the other end is arranged in PTO power inner end cap, and PTO power outer end cap is fastened on casing respectively with PTO power inner end cap；And PTO duplex power shift gear and the main deceleration driving gear of PTO are installed on PTO power power transmission shaft；
PTO output shaft one end is arranged on output outer end cap, the other end is arranged in output inner end cap, output outer end cap is fastened on casing with output inner end cap, and in output outer end cap, the sealing ring for PTO output shaft is sealed is installed, the main reduction driven gear of PTO is sleeved on PTO output shaft, and on the PTO output shaft being positioned at output outer end cap side, sleeve is installed, for adjusting the between centers gap of PTO output shaft and the main reduction driven gear of PTO being carried out spacing；
PTO duplex sliding power shift gear engages with PTO duplex power shift gear, and the main deceleration driving gear of PTO engages with the main reduction driven gear of PTO；Horizontally slip PTO duplex sliding power shift gear by stirring power shifting shift fork, to realize PTO output shaft at a high speed and low speed switching；
In intermediate transmission and arrestment mechanism, jackshaft two-end structure is identical, is separately mounted in transmission end cap, and driving end lid is securedly mounted on casing, and jackshaft is set with jackshaft travelling gear and counter shaft driven gear；Reversing shaft one end is arranged in brake end cap, and the other end is arranged in brake axle end cap, and brake end cap and brake axle end cap are for carrying out spacing to reversing shaft, and are securedly mounted to respectively on casing；Tumbler gear is sleeved on reversing shaft, and engages with jackshaft travelling gear；Multi-disc braking steel disc is installed in brake end cap, this multi-disc braking steel disc is parallel to each other and arranges in interval, and in brake end cap, the reversing shaft of correspondence is provided with multi-disc brake strip by spline, this multi-disc brake strip is parallel to each other and arranges in interval, every brake strip is equipped with and brakes between steel disc in adjacent two panels simultaneously, and braking steel disc side is provided with snap ring and carries out spacing；Being additionally provided with platen on reversing shaft, platen is provided with braking shiifter axle, and braking shiifter axle is used for controlling platen compression or pine from braking steel disc, to realize braking；Platen side snap ring carries out spacing；
In left track driving mechanism, left track drive shaft one end is arranged in Driving terminal, and the other end is through supporting protheca and stretching out outside support protheca, for external driving device；Driving terminal is fastened on casing, overlaps and be connected in supporting protheca and supporting, and in support, set is connected with Driving terminal；
In double dynamical input mechanism, hydrostatic buncher is arranged on casing side, and on hydrostatic buncher, it is provided with hydrostatic buncher power input shaft and hydrostatic buncher power output shaft, hydrostatic buncher power input shaft is nested in power and inputs in second axle one end, power inputs the second axle other end and is arranged in power end cap, and power end lid is fastened on casing；Hydrostatic buncher power output shaft is set with hydrostatic buncher power output gear, machinery gear driving gear is sleeved on power with driven wheel of differential and inputs on the second axle, and being undertaken spacing by snap ring, driven wheel of differential engages with being sleeved on the power input bevel gear that power inputs on the first axle；3rd axle two ends are separately mounted in hubcap, and hubcap is fastened on casing；3rd shaft mechanical gear gear, the 3rd stepless gear gear of axle are separately mounted on the 3rd axle in slip idling conditions, double dynamical input splined hub is kept off between gear and the stepless gear gear of the 3rd axle at the 3rd shaft mechanical, and by spline package on the 3rd axle, combined cover is arranged in double dynamical input splined hub, and gear shift shift fork is arranged on combined cover；Additionally, the 3rd axle stepless gear gear engages with hydrostatic buncher power output gear, the 3rd shaft mechanical gear gear engages with machinery gear driving gear；
In differential speed type driving mechanism, steering spindle two-end structure is identical, is separately mounted in commutation end cap, and commutation end cap is fastened on casing, and in steering spindle, it being set with differential steering left side gear and reverse idler gear, hydraulic motor is arranged on the casing between steering spindle and the wheeled support axle of the sun；The sun wheeled support axle one end is sleeved in left track drive shaft, and the other end is sleeved on right-hand track chiain and drives in axle, is used for outputing power to drive left track driving mechanism and the walking of right-hand track chiain driving mechanism；The processing of the sun wheeled support axle outer face has external tooth, this external tooth is for playing the sun gear effect of planetary gears, it is set with main reduction driven gear in the middle part of the sun wheeled support axle, main reduction driven gear side is provided with right side planetary gears, opposite side is provided with left side planetary gears, being provided with motor gear on the motor drive shaft of hydraulic motor, motor gear engages with reverse idler gear.
In the present invention, it is provided with for power being inputted the sealing ring that the first axle seals in input end cap.
In the present invention, in output outer end cap, the sealing ring for PTO output shaft is sealed is installed.
In the present invention, supporting in protheca and be provided with deep groove ball bearing, deep groove ball bearing is provided above lip-shaped sealed ring, for left track drive shaft is sealed.
In the present invention, it is provided with sleeve between jackshaft travelling gear and counter shaft driven gear.
In the present invention, the power below driven wheel of differential inputs and is set with sleeve on the second axle.
In the present invention, the 3rd shaft mechanical gear gear, the 3rd stepless gear gear of axle are arranged on the 3rd axle in slip idling conditions respectively through sliding bearing sleeve.
In the present invention, the steering spindle below reverse idler gear is set with sleeve.
In the present invention, the sun wheeled support axle two ends are respectively arranged with needle bearing, axial thrust load during for accepting left track drive shaft with right-hand track chiain driving axle dynamic rotary transmission power.
In the present invention, in the planetary gears of left side, left lateral star gear set is on left Supporting Planetary Gears axle, and circumferentially divide equally four groups along left planetary gear fixed mount and be arranged symmetrically with, left planetary gear fixed mount is arranged on the wheeled support axle of the sun by sliding bearing sleeve, left planet carrier gear is articulated on the external tooth of the sun wheeled support axle, left track drive shaft, and is engaged with motor gear by reverse idler gear.
In the present invention, in the planetary gears of right side, right lateral star gear set is on right Supporting Planetary Gears axle, and circumferentially divide equally four groups along right planetary gear fixed mount and be arranged symmetrically with, right planetary gear fixed mount is arranged on the wheeled support axle of the sun by sliding bearing sleeve, right planet carrier gear is articulated in the wheeled support axle of the sun, right-hand track chiain drives on the external tooth of axle, and engages with motor gear.
In the present invention, the internal spline of main reduction driven gear is profile of tooth spline, is combined, with the external tooth of the sun wheeled support axle outer face, the spline that partners.
In the present invention, when turning to the left, differential steering left side gear engages with left planetary gear, and when turning to the right, motor gear engages with left planetary gear；Simultaneously during upward sliding gear shift shift fork, combined cover moves, it is fixed on double dynamical input splined hub and the 3rd stepless gear gear of axle, power is transferred to the 3rd axle stepless gear gear by hydrostatic buncher power output gear and is transferred to double dynamical input splined hub again, then it is transferred to the 3rd axle input gear, now variator is hydrostatic stepless gear, the forward gear of the exportable infinitely variable speeds of variator and reverse gear shift；Slide downward gear shift shift fork, combined cover moves down, it is fixed on double dynamical input splined hub and keeps off on gear with the 3rd shaft mechanical, power is transferred to the 3rd shaft mechanical gear gear by hydrostatic buncher power output gear and is transferred to double dynamical input splined hub again, then being transferred to the 3rd axle input gear, now variator is machinery gear；
When needs produce braking, stepping on brake pedal, shift fork axle rotates counterclockwise, and shift fork axle makes platen move down, platen compresses braking steel disc and brake strip, due to brake strip can not in jackshaft circumference freely rotatable, braking steel disc can not in transmission end cap circumference freely rotatable；When platen compresses the frictional force of braking steel disc and brake strip more than jackshaft driving force, jackshaft produces braking, and due between jackshaft and left track drive shaft power without interruption, therefore intermediate shaft brake, being equal to the braking of left track drive shaft, during left track drive shaft, endless-track vehicle is braked；
When needs release braking, loosening the brake, shift fork axle return, braking steel disc and brake strip produce gap, zerofriction force between braking steel disc and brake strip, brake release；
Owing to hydraulic motor one end directly drives right planet carrier gear, the other end is by the reverse idler gear commutation left planet carrier gear of rear drive, and motor gear and the modulus of differential steering left side gear, the number of teeth are identical, therefore when fluid motor-driven, left planet carrier gear, right lateral carrier gear rotational speed are equal, and in opposite direction, with composition by the pinion frame differential steering system of fluid motor-driven；
When pinion frame differential steering system constant speed locking exports, power is by main reduction driven gear input transmission to the wheeled support axle of the sun, the sun wheeled support axle left end is left planetary gear extremely, by left lateral star gear transmission to left track drive shaft, the sun wheeled support axle right-hand member is to right planetary gear, and right lateral star gear transmission drives axle to right-hand track chiain；During equispeed output, hydraulic motor does not work, when hydraulic motor does not rotate, differential port side gear is equal with the amount of force of reverse idler gear, in opposite direction, steering spindle self-locking, left planet carrier gear, right planet carrier gear are fixed, the rotation on left Supporting Planetary Gears axle of left planetary gear, the rotation on right Supporting Planetary Gears axle of right planetary gear, now left track drive shaft, right-hand track chiain drive axle equispeed output；
When pinion frame differential steering system differential steering exports, hydraulic motor rotates, left planet carrier gear, the input direction of right planet carrier gear is contrary, the power that output speed is equal, this power produces compound motion with the output of constant speed locking, left planetary gear is promoted both to revolve round the sun around left Supporting Planetary Gears axle rotation also around the wheeled support axle of the sun, right planetary gear both revolved round the sun around right Supporting Planetary Gears axle rotation also around the wheeled support axle of the sun, and the direction of its both sides revolution is identical, both the left track drive shaft rotating speed having made side increases, and the rotating speed that opposite side right-hand track chiain drives axle reduces, and then realize turning to.
Beneficial effect: the present invention adopts mechanically direct transmission and hydraulic stepless transmission parallel, solves mechanically direct transmission and the problem that the electrodeless formula of hydraulic pressure is combined by Change-over knot trap, is effectively improved the high handling with endless-track vehicle of transmission efficiency；And it is integrated with brake unit, structure is little, operate light, adopt hydraulic motor to control the planet carrier gear rotating of driving wheel both sides planetary gears simultaneously and drive power output shaft two ends rotating speed to change traveling, and then realize turning to, this steering structure can pass through to regulate hydraulic motor rotary speed and realize precisely turning to, even field pivot turn, and conveniently realize the control of remote machine electrohydraulic integration, effectively overcome existing endless-track vehicle to travel cornering drag, the edge of a field turns to the problems such as serious, the manipulation difficulty of heap soil or fertilizer over and around the roots mud, also reduce the oeverall quality of variator, and then reduce energy consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of presently preferred embodiments of the present invention.
Fig. 2 is A-A place sectional view in Fig. 1.
Fig. 3 is the power input mechanism P in presently preferred embodiments of the present invention and PTO power output mechanism T structural representation.
Fig. 4 is C-C place sectional view in Fig. 1.
Fig. 5 is the left track driving mechanism structural representation in presently preferred embodiments of the present invention.
Fig. 6 is the intermediate transmission in presently preferred embodiments of the present invention and arrestment mechanism structural representation.
Fig. 7 is M place enlarged drawing in Fig. 6.
Fig. 8 is the double dynamical input mechanism structural representation in presently preferred embodiments of the present invention.
Fig. 9 is H-H place sectional view in Fig. 8.
Figure 10 is I-I place sectional view in Fig. 8.
Figure 11 is J-J place sectional view in Fig. 8.
Figure 12 is K-K place sectional view in Fig. 8.
Figure 13 is the differential speed type driving mechanism structure schematic diagram in presently preferred embodiments of the present invention.
Figure 14 is U-U place sectional view in Figure 13.
Figure 15 is V-V place sectional view in Figure 13.
Figure 16 is W-W place sectional view in Figure 13.
Figure 17 is Y-Y place sectional view in Figure 13.
Figure 18 is Z-Z place sectional view in Figure 13.
Figure 19 is the left side planetary gears structural representation in presently preferred embodiments of the present invention.
Figure 20 is the right side planetary gears structural representation in presently preferred embodiments of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, the present invention is expanded on further.
Referring to a kind of endless-track vehicle integrated form variator of Fig. 1 ~ Fig. 2, including power input mechanism P, double dynamical input mechanism S, intermediate transmission and arrestment mechanism M, differential speed type driving mechanism D, left track driving mechanism Q, right-hand track chiain driving mechanism R, PTO power output mechanism T and casing X；Wherein, power input mechanism P, double dynamical input mechanism S, intermediate transmission and arrestment mechanism M, differential speed type driving mechanism D and PTO power output mechanism T are installed on casing X, and casing X lateral symmetry is provided with the identical left track driving mechanism Q of structure and right-hand track chiain driving mechanism R；Power input mechanism P is connected with PTO power output mechanism T, double dynamical input mechanism S respectively, power through power input mechanism P input, a part of power is exported by PTO power output mechanism T, external procedure part is imparted power to by PTO power output mechanism T, another part power is through double dynamical input mechanism S transport to intermediate transmission and arrestment mechanism M, intermediate transmission and arrestment mechanism M are connected with differential speed type driving mechanism D, and outputed power the left track driving mechanism Q of driving and right-hand track chiain driving mechanism R by differential speed type driving mechanism D；Power input mechanism P is used for realizing switching with low speed at a high speed, and the output that double dynamical input mechanism S is used for forward gear, reverses gear, differential speed type driving mechanism D is used for realizing course changing control.
Shown in Fig. 3 ~ 4, power input mechanism P includes power input bevel gear P1, PTO duplex sliding power shift gear P2, power inputs the first axle P3, power shifting shift fork P4, PTO duplex power shift gear P5, PTO power power transmission shaft P6；PTO power output mechanism T includes PTO output shaft T1, PTO main deceleration driving gear T3 of main reduction driven gear T2, PTO；Input end cap G1, snap ring G2, sealing ring G3, thrust bearing G4, bolt G5, deep groove ball bearing G6, sleeve G7, output outer end cap G11, PTO power outer end cap G17, PTO power inner end cap G18, output inner end cap G19；Power inputs first axle P3 one end and is arranged on input end cap G1 by thrust bearing G4, the other end is arranged on casing X by deep groove ball bearing G6, input end cap G1 is fastened on casing X by bolt G5, and is provided with in input end cap G1 for power inputting the first axle P3 sealing ring G3 sealed and for thrust bearing G4 carries out the hole snap ring G2 to location；Power inputs and is set with PTO duplex sliding power shift gear P2 on the first axle P3, PTO duplex sliding power shift gear P2 is fitted with power shifting shift fork P4, and power input the first axle P3 mono-side end be provided with power input bevel gear P1, input at the power being positioned at power input bevel gear P1 upper end simultaneously and the first axle P3 is set with sleeve G7, input the between centers gap of the first axle P3 for motivation of adjustment and power input bevel gear P1 is carried out spacing；
PTO power power transmission shaft P6 one end is arranged in PTO power outer end cap G17 by deep groove ball bearing G6, the other end is arranged in PTO power inner end cap G18 by deep groove ball bearing G6, and PTO power outer end cap G17 and PTO power inner end cap G18 is fastened on casing X respectively through bolt G5, for deep groove ball bearing G6 is carried out spacing, PTO duplex power shift gear P5 is sleeved on PTO power power transmission shaft P6 one end, and the PTO power power transmission shaft P6 other end is set with the main deceleration driving gear T3 of PTO；
PTO output shaft T1 one end is arranged on output outer end cap G11 by deep groove ball bearing G6, the other end is arranged on output inner end cap G19 by deep groove ball bearing G6, output outer end cap G11 and output inner end cap G19 is for carrying out spacing to deep groove ball bearing G6, and it is fastened on casing X by bolt G5, and it is provided with for the PTO output shaft T1 sealing ring G3 sealed in output outer end cap G11, the main reduction driven gear T2 of PTO is sleeved on PTO output shaft T1, and on the PTO output shaft T1 being positioned at output outer end cap G11 side, sleeve G7 is installed, for adjusting the between centers gap of PTO output shaft T1 and PTO main reduction driven gear T2 being carried out spacing；
PTO duplex sliding power shift gear P2 and PTO duplex power shift gear P5 engages, the main reduction driven gear T2 engagement of PTO main deceleration driving gear T3 and PTO.
PTO duplex sliding power shift gear P2 inputs at power and moves from left to right on the first axle P3, to realize gear height, low gear switches, as shown in Figure 4, for low gear, its drive path is described: the right side gear of PTO duplex sliding power shift gear P2 engages → PTO duplex power shift gear P5 drive PTO power power transmission shaft P6 rotation → PTO power power transmission shaft P6 drive PTO main deceleration driving gear T3 rotation transmission power → PTO main deceleration driving gear T3 and PTO main reduction driven gear T2 engagement → PTO main reduction driven gear T2 drive PTO output shaft T1 rotation with the right side gear of PTO duplex power shift gear P5, this transmission process generally deceleration transmission；Horizontally slip PTO duplex sliding power shift gear P2 by stirring power shifting shift fork P4, to realize PTO output shaft T1 at a high speed and low speed switching.
Shown in Figure 5, left track driving mechanism Q includes set Q3, snap ring G2, bolt G5, deep groove ball bearing G6, lip-shaped sealed ring G8, Driving terminal G12 in left track drive shaft Q1, support protheca Q2, support；Left track drive shaft Q1 one end is arranged in Driving terminal G12 by deep groove ball bearing G6, the other end is through supporting protheca Q2 and stretching out outside support protheca Q2, Driving terminal G12 is fastened on casing X by bolt G5, in supporting protheca Q2 and supporting, set Q3 is connected, and overlaps Q3 and be connected with Driving terminal G12 in support；Being provided with deep groove ball bearing G6 additionally, support in protheca Q2, deep groove ball bearing G6 is provided above lip-shaped sealed ring G8, and for left track drive shaft Q1 is sealed, and left track driving mechanism Q is identical with right-hand track chiain driving mechanism R structure.
Shown in Fig. 6 ~ 7, intermediate transmission and arrestment mechanism M include jackshaft M1, jackshaft travelling gear M2, counter shaft driven gear M3, tumbler gear M4, reversing shaft M5, brake M6, platen M61, shift fork axle M62, braking steel disc M63, brake strip M64, snap ring G2, bolt G5, deep groove ball bearing G6, sleeve G7, transmission end cap G13, brake end cap G20 and brake axle end cap G21；Jackshaft M1 two-end structure is identical, is arranged in transmission end cap G13 respectively through deep groove ball bearing G6, and transmission end cap G13 is securedly mounted on casing X by bolt G5；And on jackshaft M1, it is set with sleeve G7, jackshaft travelling gear M2 one end is sleeved on the jackshaft M1 being positioned at above sleeve G7, the other end engages with tumbler gear M4, and tumbler gear M4 is arranged on reversing shaft M5, and counter shaft driven gear M3 is sleeved on the jackshaft M1 being positioned at below sleeve G7；On jackshaft M1 and reversing shaft M5, snap ring G2 is installed simultaneously, spacing for tumbler gear M4 and jackshaft travelling gear M2, the purpose increasing reversing shaft M5 is used for changing machinery gear, owing to this variator is installed after on the engine, machinery gear is through this commutation, just making engine rotation, endless-track vehicle moves forward, and otherwise the machinery gear of car crawler belt will always be in reversing gear；
Reversing shaft M5 one end is arranged in brake end cap G20 by deep groove ball bearing G6, the other end is arranged in brake axle end cap G21 by deep groove ball bearing G6, brake end cap G20 and brake axle end cap G21 is for carrying out spacing to reversing shaft M5, and is securedly mounted on casing X respectively through bolt G5；Six braking steel disc M63 are installed in brake end cap G20, these six braking steel disc M63 are parallel to each other and arrange in interval, and in brake end cap G20, the reversing shaft M5 of correspondence is provided with five brake strip M64 by spline, five brake strip M64 are all parallel to each other and arrange in interval, every brake strip M64 is equipped with and brakes between steel disc M63 in adjacent two panels, and braking steel disc M63 side is provided with snap ring G2 and carries out spacing；Reversing shaft M5 is additionally provided with platen M61, platen M61 be provided with braking shiifter axle M62, braking shiifter axle M62 and be used for controlling platen M61 and compress or pine is from braking steel disc M63, to realize braking；Platen M61 side snap ring G2 carries out spacing；Its braking operation principle is as follows:
Produce braking: step on brake pedal, actuate shift fork axle M62 to rotate counterclockwise, shift fork axle M62 makes platen M61 move down, platen M61 compress braking steel disc M63 and brake strip M64, due to brake strip M64 can not in jackshaft M1 circumference freely rotatable, braking steel disc M63 can not in transmission end cap G13 circumference freely rotatable；When platen M61 compresses the frictional force of braking steel disc M63 and brake strip M64 more than jackshaft M1 driving force, jackshaft M1 produces braking, and due between jackshaft M1 and left track drive shaft Q1 power without interruption, therefore jackshaft M1 braking, it is equal to left track drive shaft Q1 braking, during left track drive shaft Q1, endless-track vehicle is braked, this brakes is arranged on the high speed end of variator, and structure is little, operates light；
Releasing braking: loosen the brake, shift fork axle M62 return, braking steel disc M63 and brake strip M64 produces gap, zerofriction force between braking steel disc M63 and brake strip M64, brake release.
Shown in Fig. 8 ~ 12, double dynamical input mechanism S includes hydrostatic buncher S1, hydrostatic buncher power input shaft S2, machinery gear driving gear S3, power inputs the second axle S4, driven wheel of differential S5, hydrostatic buncher power output gear S6, hydrostatic buncher power output shaft S7, gear shift shift fork S8, combined cover S9, double dynamical input splined hub S10, 3rd axle S11, 3rd axle input gear S12, 3rd shaft mechanical gear gear S13, the 3rd stepless gear gear S14 of axle, snap ring G2, reasoning bearing G4, bolt G5, deep groove ball bearing G6, sleeve G7, sliding bearing G10, power end cap G14, hubcap G15；Hydrostatic buncher S1 is arranged on casing X side, and on hydrostatic buncher S1, it is provided with hydrostatic buncher power input shaft S2 and hydrostatic buncher power output shaft S7, hydrostatic buncher power input shaft S2 is nested in power and inputs in second axle S4 one end, power inputs the second axle S4 other end and is arranged in power end cap G14 by thrust bearing G4, and power end cap G14 is fastened on casing X by bolt G5；Hydrostatic buncher power output shaft S7 is set with hydrostatic buncher power output gear S6, machinery gear driving gear S3 and driven wheel of differential S5 is sleeved on power and inputs on the second axle S4, and undertaken spacing by snap ring G2, and the power below driven wheel of differential S5 inputs the power input bevel gear P1 being set with sleeve G7, driven wheel of differential S5 on the second axle S4 and be sleeved on power and input on the first axle P3 and engages；
3rd axle S11 two ends are arranged in hubcap G15 respectively through deep groove ball bearing G6, and hubcap G15 is fastened on casing X by bolt G5；3rd shaft mechanical gear gear S13, the 3rd stepless gear gear S14 of axle is slip idling conditions respectively through sliding bearing sleeve G10 empty set on the 3rd axle S11, double dynamical input splined hub S10 keeps off between the stepless gear gear S14 of gear S13 and the three axle at the 3rd shaft mechanical, and by spline package on the 3rd axle S11, combined cover S9 is arranged on double dynamical input splined hub S10, and gear shift shift fork S8 is arranged on combined cover S9；Being set with sleeve G7, sleeve G7 one end on the 3rd axle S11 to be connected with the 3rd shaft mechanical gear gear S13, the other end and the 3rd axle input gear S12 connect simultaneously；Additionally, the 3rd axle stepless gear gear S14 engages with hydrostatic buncher power output gear S6, the 3rd shaft mechanical gear gear S13 engages with machinery gear driving gear S3；Upward sliding gear shift shift fork S8, combined cover S9 moves, it is fixed on the double dynamical stepless gear gear S14 of input splined hub S10 and the three axle, power is transferred to the 3rd axle stepless gear gear S14 by hydrostatic buncher power output gear S6 and is transferred to double dynamical input splined hub S10 again, then it is transferred to the 3rd axle input gear S12, now variator is hydrostatic stepless gear, the forward gear of the exportable infinitely variable speeds of variator and reverse gear shift；Slide downward gear shift shift fork S8, combined cover S9 moves down, it is fixed on double dynamical input splined hub S10 and the three shaft mechanical gear gear S13, power is transferred to the 3rd shaft mechanical gear gear S13 by hydrostatic buncher power output gear S6 and is transferred to double dynamical input splined hub S10 again, then it is transferred to the 3rd axle input gear S12, now variator is machinery gear, variator can not export reverse gear shift when fixing the forward gear exporting a certain speed, and this gear is mainly used in caterpillar field high-efficient homework；Double dynamical input, when emphasis is for solving field work, machinery gear efficient driving problem and other operating mode hydraulic stepless speed change manipulate convenience problem.
In the present embodiment, adopting double dynamical input, including machinery gear and hydrostatic stepless gear, its two gears power transmission route is as follows:
Machinery gear power transmission route is: power that power inputs on the first axle P3 input bevel gear P1 engage with driven wheel of differential S5 → driven wheel of differential S5 drive power input the second axle S4 rotate transmission power → machinery gear driving gear S3 rotate → machinery gear driving gear S3 and the three shaft mechanical gear gear S13 engagement the → the three shaft mechanical gear gear S13 drive the 3rd axle S11 rotation the → the three axle S11 drive the 3rd axle input gear S12 rotation the → the three axle input gear S12 imparts power to intermediate transmission mechanism M；
Hydrostatic stepless gear power transmission route is: power input on the first axle P3 power input bevel gear P1 engage with driven wheel of differential S5 → driven wheel of differential S5 drives power to input the second axle S4 to rotate transmission power → power and transmit into hydrostatic buncher S1 infinitely variable speeds from hydrostatic buncher power input shaft S2, then drive hydrostatic buncher power output gear S6 rotations → hydrostatic buncher power output gear S6 and the three axle stepless gear gear S14 to engage → the three axle stepless gear gear S14 drive the 3rd axle S11 rotation the → the three axle S11 drive the 3rd axle input gear S12 rotation the → the three axle input gear S12 from hydrostatic buncher power output shaft S7 output → hydrostatic buncher power output shaft S7 and impart power to intermediate transmission mechanism M.
Shown in Figure 13～20, differential speed type driving mechanism D includes differential steering left side gear D1, steering spindle D2, reverse idler gear D3, hydraulic motor D4, motor drive shaft D5, motor gear D6, the wheeled support axle D7 of the sun, right side planetary gears D8, left side planetary gears D9, main reduction driven gear D10, right Supporting Planetary Gears axle D81, right lateral star gear D 82, right lateral carrier gear D 83, right planetary gear fixed mount D84, left Supporting Planetary Gears axle D91, left lateral star gear D 92, left lateral carrier gear D 93, left planetary gear fixed mount D94 and left track drive shaft Q1, right-hand track chiain drives axle R1, snap ring G2, reasoning bearing G4, bolt G5, deep groove ball bearing G6, sleeve G7, needle bearing G9, commutation end cap G16；Steering spindle D2 two-end structure is identical, it is arranged in commutation end cap G16 respectively through deep groove ball bearing G6, commutation end cap G16 is fastened on casing X by bolt G5, and on steering spindle D2, it is set with differential steering left side gear D1 and reverse idler gear D3, steering spindle D2 below reverse idler gear D3 is set with sleeve G7, hydraulic motor D4 is arranged on the casing X between steering spindle D2 and the wheeled support axle D7 of the sun, the sun wheeled support axle D7 one end is sleeved in left track drive shaft Q1 by deep groove ball bearing G6, the other end is sleeved on right-hand track chiain by deep groove ball bearing G6 and drives in axle R1, for outputing power to drive left track driving mechanism Q and right-hand track chiain driving mechanism R walking, it is respectively arranged with needle bearing G9 at the sun wheeled support axle D7 two ends simultaneously, axial thrust load during axle R1 dynamic rotary transmission power is driven with right-hand track chiain for accepting left track drive shaft Q1；The processing of the sun wheeled support axle D7 outer face has external tooth, and this external tooth is for playing the sun gear effect of planetary gears；It is set with main reduction driven gear D10 in the middle part of the sun wheeled support axle D7, main reduction driven gear D10 side is provided with right side planetary gears D8, opposite side is provided with left side planetary gears D9, being provided with motor gear D6 on the motor drive shaft D5 of hydraulic motor D4, motor gear D6 engages with reverse idler gear D3；
In the planetary gears D9 of left side, left lateral star gear D 92 is sleeved on left Supporting Planetary Gears axle D91, and circumferentially divide equally four groups along left planetary gear fixed mount D94 and be arranged symmetrically with, left planetary gear fixed mount D94 is arranged on the wheeled support axle D7 of the sun by sliding bearing sleeve G10, left lateral carrier gear D 93 is articulated on the external tooth of the sun wheeled support axle D7, left track drive shaft Q1, and is engaged with motor gear D6 by reverse idler gear D3；When turning to the left, differential steering left side gear D1 engages with left lateral star gear D 92, and when turning to the right, motor gear D6 engages with left lateral star gear D 92；
In the planetary gears D8 of right side, right lateral star gear D 82 is sleeved on right Supporting Planetary Gears axle D81, and circumferentially divide equally four groups along right planetary gear fixed mount D84 and be arranged symmetrically with, right planetary gear fixed mount D84 is arranged on the wheeled support axle D7 of the sun by sliding bearing sleeve G10, right lateral carrier gear D 83 is articulated in the wheeled support axle D7 of the sun, right-hand track chiain drives on the external tooth of axle R1, and engages with motor gear D6.
In the present embodiment, the internal spline of main reduction driven gear D10 is profile of tooth spline, is combined a pair spline of formation with the external tooth of the sun wheeled support axle D7 outer face.
In the present embodiment, left side planetary gears D9 and right side planetary gears D8 interconnection: owing to hydraulic motor D4 one end directly drives right lateral carrier gear D 83, opposite side is by reverse idler gear D3 commutation rear drive left lateral carrier gear D 93, and motor gear D6 and differential steering left side gear D1, modulus is identical, the number of teeth is identical, therefore when hydraulic motor D4 drives, left lateral carrier gear D 93, right lateral carrier gear D 83 rotating speed are equal, and in opposite direction, with the pinion frame differential steering system that composition is driven by hydraulic motor D4；Its operation principle:
1, (output of constant speed locking) is driven:
Power is by main reduction driven gear D10 input transmission to the wheeled support axle D7 of the sun, the sun wheeled support axle D7 left end is to left lateral star gear D 92, transmitted to left track drive shaft Q1 by left lateral star gear D 92, the sun wheeled support axle D7 right-hand member is to right lateral star gear D 82, and right lateral star gear D 82 transmits to right-hand track chiain driving axle R1；During equispeed output, hydraulic motor D4 does not work, when hydraulic motor D4 does not rotate, the amount of force of differential port side gear D1 and reverse idler gear D3 is equal, in opposite direction, steering spindle D2 self-locking, left lateral carrier gear D 93, right lateral carrier gear D 83 are fixed, left lateral star gear D 92 rotation on left Supporting Planetary Gears axle D91, right lateral star gear D 82 rotation on right Supporting Planetary Gears axle D81, now left track drive shaft Q1, right-hand track chiain drive axle R1 equispeed output；
2, differential steering output:
When hydraulic motor D4 rotates, left lateral carrier gear D 93, right lateral carrier gear D 83 input direction contrary, the power that output speed is equal；Now power produces compound motion with driving (output of constant speed locking), left lateral star gear D 92 is promoted both to revolve round the sun around left Supporting Planetary Gears axle D91 rotation also around the wheeled support axle D7 of the sun, right lateral star gear D 82 both revolved round the sun around right Supporting Planetary Gears axle D81 rotation also around the wheeled support axle D7 of the sun, and the direction of its both sides revolution is identical, both the left track drive shaft Q1 rotating speed having made side increases, and the rotating speed that opposite side right-hand track chiain drives axle R1 reduces, and then realize turning to.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (8)
1. an endless-track vehicle integrated form variator, including power input mechanism, double dynamical input mechanism, intermediate transmission and arrestment mechanism, differential speed type driving mechanism, left track driving mechanism, right-hand track chiain driving mechanism, PTO power output mechanism and casing；It is characterized in that, be arranged on casing after power input mechanism, double dynamical input mechanism, intermediate transmission and arrestment mechanism, differential speed type driving mechanism and PTO power output mechanism are integrated；Left track driving mechanism, right-hand track chiain driving mechanism structure are identical is symmetrically mounted on casing both sides, and power input mechanism is connected with PTO power output mechanism, double dynamical input mechanism respectively；The concrete attachment structure of each mechanism is as follows:
Power input mechanism is connected with PTO power output mechanism, and wherein, power inputs first axle one end and is arranged on input lid, and the other end is arranged on casing, and input lid is fastened on casing；Power inputs and is set with duplex sliding power shift gear on the first axle, and PTO duplex sliding power shift gear is fitted with power shifting shift fork, and inputs the first axle one side end at power and be provided with power input bevel gear；Input at the power being positioned at power input bevel gear upper end simultaneously and the first axle is set with sleeve, input the between centers gap of the first axle for motivation of adjustment and power input bevel gear is carried out spacing；
PTO power power transmission shaft one end is arranged on PTO power outer end cap, and the other end is arranged in PTO power inner end cap, and PTO power outer end cap is fastened on casing respectively with PTO power inner end cap；And PTO duplex power shift gear and the main deceleration driving gear of PTO are installed on PTO power power transmission shaft；
PTO output shaft one end is arranged on output outer end cap, the other end is arranged in output inner end cap, output outer end cap is fastened on casing with output inner end cap, and in output outer end cap, the sealing ring for PTO output shaft is sealed is installed, the main reduction driven gear of PTO is sleeved on PTO output shaft, and on the PTO output shaft being positioned at output outer end cap side, sleeve is installed, for adjusting the between centers gap of PTO output shaft and the main reduction driven gear of PTO being carried out spacing；
PTO duplex sliding power shift gear engages with PTO duplex power shift gear, and the main deceleration driving gear of PTO engages with the main reduction driven gear of PTO；
In intermediate transmission and arrestment mechanism, jackshaft two-end structure is identical, is separately mounted in transmission end cap, and driving end lid is securedly mounted on casing, and jackshaft is set with jackshaft travelling gear and counter shaft driven gear；Reversing shaft one end is arranged in brake end cap, and the other end is arranged in brake axle end cap, and brake end cap and brake axle end cap are for carrying out spacing to reversing shaft, and are securedly mounted to respectively on casing；Tumbler gear is sleeved on reversing shaft, and engages with jackshaft travelling gear；Multi-disc braking steel disc is installed in brake end cap, this multi-disc braking steel disc is parallel to each other and arranges in interval, and in brake end cap, the reversing shaft of correspondence is provided with multi-disc brake strip by spline, this multi-disc brake strip is parallel to each other and arranges in interval, and every brake strip is equipped with and brakes between steel disc in adjacent two panels simultaneously；Being additionally provided with platen on reversing shaft, platen is provided with braking shiifter axle, and braking shiifter axle is used for controlling platen compression or pine from braking steel disc, to realize braking；
In left track driving mechanism, left track drive shaft one end is arranged in Driving terminal, and the other end is through supporting protheca and stretching out outside support protheca；Driving terminal is fastened on casing, overlaps and be connected in supporting protheca and supporting, and in support, set is connected with Driving terminal；
In double dynamical input mechanism, hydrostatic buncher is arranged on casing side, and on hydrostatic buncher, it is provided with hydrostatic buncher power input shaft and hydrostatic buncher power output shaft, hydrostatic buncher power input shaft is nested in power and inputs in second axle one end, power inputs the second axle other end and is arranged in power end cap, and power end lid is fastened on casing；Hydrostatic buncher power output shaft is set with hydrostatic buncher power output gear, machinery gear driving gear is sleeved on power with driven wheel of differential and inputs on the second axle, and being undertaken spacing by snap ring, driven wheel of differential engages with being sleeved on the power input bevel gear that power inputs on the first axle；3rd axle two ends are separately mounted in hubcap, and hubcap is fastened on casing；3rd shaft mechanical gear gear, the 3rd stepless gear gear of axle are separately mounted on the 3rd axle in slip idling conditions, double dynamical input splined hub is kept off between gear and the stepless gear gear of the 3rd axle at the 3rd shaft mechanical, and by spline package on the 3rd axle, combined cover is arranged in double dynamical input splined hub, and gear shift shift fork is arranged on combined cover；Additionally, the 3rd axle stepless gear gear engages with hydrostatic buncher power output gear, the 3rd shaft mechanical gear gear engages with machinery gear driving gear；
In differential speed type driving mechanism, steering spindle two-end structure is identical, is separately mounted in commutation end cap, and commutation end cap is fastened on casing, and in steering spindle, it being set with differential steering left side gear and reverse idler gear, hydraulic motor is arranged on the casing between steering spindle and the wheeled support axle of the sun；The sun wheeled support axle one end is sleeved in left track drive shaft, and the other end is sleeved on right-hand track chiain and drives in axle, is used for outputing power to drive left track driving mechanism and the walking of right-hand track chiain driving mechanism；The processing of the sun wheeled support axle outer face has external tooth, this external tooth is for playing the sun gear effect of planetary gears, it is set with main reduction driven gear in the middle part of the sun wheeled support axle, main reduction driven gear side is provided with right side planetary gears, opposite side is provided with left side planetary gears, being provided with motor gear on the motor drive shaft of hydraulic motor, motor gear engages with reverse idler gear；
In the planetary gears of left side, left lateral star gear set is on left Supporting Planetary Gears axle, and circumferentially divide equally four groups along left planetary gear fixed mount and be arranged symmetrically with, left planetary gear fixed mount is arranged on the wheeled support axle of the sun by sliding bearing sleeve, left planet carrier gear is articulated on the external tooth of the sun wheeled support axle, left track drive shaft, and is engaged with motor gear by reverse idler gear；
In the planetary gears of right side, right lateral star gear set is on right Supporting Planetary Gears axle, and circumferentially divide equally four groups along right planetary gear fixed mount and be arranged symmetrically with, right planetary gear fixed mount is arranged on the wheeled support axle of the sun by sliding bearing sleeve, right planet carrier gear is articulated in the wheeled support axle of the sun, right-hand track chiain drives on the external tooth of axle, and engages with motor gear；
When endless-track vehicle turns to the left, differential steering left side gear engages with left planetary gear；When endless-track vehicle turns to the right, motor gear engages with left planetary gear；When pinion frame differential steering system differential steering exports, hydraulic motor rotates, left planet carrier gear, the input direction of right planet carrier gear is contrary, the power that output speed is equal, this power produces compound motion with the output of constant speed locking, left planetary gear is promoted both to revolve round the sun around left Supporting Planetary Gears axle rotation also around the wheeled support axle of the sun, right planetary gear both revolved round the sun around right Supporting Planetary Gears axle rotation also around the wheeled support axle of the sun, and the direction of its both sides revolution is identical, both the left track drive shaft rotating speed having made side increases, and the rotating speed that opposite side right-hand track chiain drives axle reduces, and then realize turning to.
2. a kind of endless-track vehicle integrated form variator according to claim 1, it is characterised in that be provided with for power being inputted the sealing ring that the first axle seals in input end cap.
3. a kind of endless-track vehicle integrated form variator according to claim 1, it is characterised in that be provided with the sealing ring for PTO output shaft is sealed in output outer end cap.
4. a kind of endless-track vehicle integrated form variator according to claim 1, it is characterised in that supporting in protheca and be provided with deep groove ball bearing, deep groove ball bearing is provided above lip-shaped sealed ring.
5. a kind of endless-track vehicle integrated form variator according to claim 1, it is characterised in that be provided with sleeve between jackshaft travelling gear and counter shaft driven gear.
6. a kind of endless-track vehicle integrated form variator according to claim 1, it is characterised in that the 3rd shaft mechanical gear gear, the 3rd stepless gear gear of axle are arranged on the 3rd axle respectively through sliding bearing sleeve.
7. a kind of endless-track vehicle integrated form variator according to claim 1, it is characterised in that the sun wheeled support axle two ends are respectively arranged with needle bearing.
8. a kind of endless-track vehicle integrated form variator according to any one of claim 1～7, it is characterised in that
During upward sliding gear shift shift fork, combined cover moves, it is fixed on double dynamical input splined hub and the 3rd stepless gear gear of axle, power is transferred to the 3rd axle stepless gear gear by hydrostatic buncher power output gear and is transferred to double dynamical input splined hub again, then it is transferred to the 3rd axle input gear, now variator is hydrostatic stepless gear, the forward gear of the exportable infinitely variable speeds of variator and reverse gear shift；Slide downward gear shift shift fork, combined cover moves down, it is fixed on double dynamical input splined hub and keeps off on gear with the 3rd shaft mechanical, power is transferred to the 3rd shaft mechanical gear gear by hydrostatic buncher power output gear and is transferred to double dynamical input splined hub again, then being transferred to the 3rd axle input gear, now variator is machinery gear；
When needs produce braking, stepping on brake pedal, shift fork axle rotates counterclockwise, and shift fork axle makes platen move down, platen compresses braking steel disc and brake strip, due to brake strip can not in jackshaft circumference freely rotatable, braking steel disc can not in transmission end cap circumference freely rotatable；When platen compresses the frictional force of braking steel disc and brake strip more than jackshaft driving force, jackshaft produces braking, and due between jackshaft and left track drive shaft power without interruption, therefore intermediate shaft brake, being equal to the braking of left track drive shaft, during left track drive shaft, endless-track vehicle is braked；
When needs release braking, loosening the brake, shift fork axle return, braking steel disc and brake strip produce gap, zerofriction force between braking steel disc and brake strip, brake release；
Owing to hydraulic motor one end directly drives right planet carrier gear, the other end is by the reverse idler gear commutation left planet carrier gear of rear drive, and motor gear and the modulus of differential steering left side gear, the number of teeth are identical, therefore when fluid motor-driven, left planet carrier gear, right lateral carrier gear rotational speed are equal, and in opposite direction, with composition by the pinion frame differential steering system of fluid motor-driven；
When pinion frame differential steering system constant speed locking exports, power is by main reduction driven gear input transmission to the wheeled support axle of the sun, the sun wheeled support axle left end is left planetary gear extremely, by left lateral star gear transmission to left track drive shaft, the sun wheeled support axle right-hand member is to right planetary gear, and right lateral star gear transmission drives axle to right-hand track chiain；During equispeed output, hydraulic motor does not work, when hydraulic motor does not rotate, differential port side gear is equal with the amount of force of reverse idler gear, in opposite direction, steering spindle self-locking, left planet carrier gear, right planet carrier gear are fixed, the rotation on left Supporting Planetary Gears axle of left planetary gear, the rotation on right Supporting Planetary Gears axle of right planetary gear, now left track drive shaft, right-hand track chiain drive axle equispeed output.
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| CN106763742B (en) * | 2017-02-15 | 2018-03-16 | 苏州萨伯工业设计有限公司 | Crawler-type harvester ratio rotating direction control method |
| CN106641129B (en) * | 2017-02-15 | 2018-11-27 | 苏州萨伯工业设计有限公司 | The integrated five gears drive method of farm machinery |
| CN107339393B (en) * | 2017-05-23 | 2023-08-22 | 浙江云洲科技有限公司 | Mechanical/stepless speed change dual-purpose gearbox of crawler tractor |
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| CN104141749B (en) * | 2014-07-25 | 2015-04-29 | 湖南农业大学 | Hydraulic control continuously variable transmission for mechanical direct-drive tracked vehicle |
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