CN105090431A - Integrated transmission for tracked vehicle - Google Patents
Integrated transmission for tracked vehicle Download PDFInfo
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- CN105090431A CN105090431A CN201510589885.8A CN201510589885A CN105090431A CN 105090431 A CN105090431 A CN 105090431A CN 201510589885 A CN201510589885 A CN 201510589885A CN 105090431 A CN105090431 A CN 105090431A
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- axle
- pto
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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
The invention discloses an integrated transmission for a tracked vehicle. A power input mechanism, a double-power input mechanism, a middle transmission and brake mechanism, a differential type driving mechanism and a PTO power output mechanism are integrated to be mounted on a box body; a left track driving mechanism and a right track driving mechanism are of the same structure and are symmetrically mounted on the two sides of the box body, and the power input mechanism is connected with the PTO power output mechanism and the double-power input mechanism; the double-power input mechanism carries out transmission and is connected with the middle transmission and brake mechanism, and the middle transmission and brake mechanism is connected with the differential type driving mechanism; and the differential type driving mechanism outputs the power to drive the left track driving mechanism and the right rack driving mechanism. Through a conversion combination sleeve, the aim of combining mechanical direct transmission and hydraulic infinite type is achieved, and the transmission efficiency and the manipulation performance of the tracked vehicle can be effectively improved. Meanwhile, a steering device which integrates a brake device and a hydraulic motor to control positive rotation and negative rotation of a planet carrier gear effectively reduces the overall mass of the transmission, and the energy consumption is further reduced.
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 speed changer.
Background technique
China is Rice Production maximum in the world and country of consumption, Annual planting area about 2,860 ten thousand hectares, account for 1/5 of global Monitoring of Paddy Rice Plant Area, produce 1.85 hundred million tons, rice per year, account for 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 paddy rice.Paddy fields in south china essentialspecies planting paddy rice and cole crop, and almost long-term ponding in rice field, winter is without freezing, soil is moistening, and bearing capacity of soil is poor, after wheel-type working machine tool enters rice field, sinkage is large, the minimum earth point of wheel exceedes plough pan, enters and causes the gear teeth to destroy plough pan structure, cause plough pan soft.And along with after wheel-type working machine tool repeatedly operation, the plough pan degree of depth is constantly deepened, every farming once, to impel cultivating plough sediment layer deepen once, when plough pan deepen after, just need larger diameter wheel and more high-power, weight Work machine drive, and then cause vicious circle, make paddy field become deep mud feet fields, time to a certain extent, easily cause machinery such as cultivated land facility, transplanter, combine-harvester etc. cannot to go to the field operation finally.Although submerged weir flow can improve crop yield; reduce pollution of heavy metals; 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 farm machinery enters rice field and very easily occurs skidding or sunken car, and then cannot complete elemental operation.
Because the contact area of endless-track vehicle is large, and the grounding pressure of crawler belt is little, and the grounding pressure of its numerical value and people is close, is particularly suitable for paddy fields in south china operation, and the crawler-type work vehicle of current paddy fields in south china mainly contains cat, crawler-type harvester; But the variable ratio drive system of these endless-track vehicles adopts two types usually, one is Purely mechanical power transmission system transferring power, it has, and structure is simple, efficiency advantages of higher, but Purely mechanical power-transmitting unit, gear shift operation is complicated, drive a car or the technical ability of tractor because agricultural machinery operator does not possess usually simultaneously, be difficult to control to the cooperation of clutch, throttle, gearshift, and then limit the development of tractor; The second is the electrodeless drive system adopting oil hydraulic pump-motor integrated system to achieve crawler tractor, be improved owing to adopting the crawler tractor driving operation of electrodeless drive system, agricultural machinery operator need not participate in the technical training of specialty, simple exercise is only needed to grasp driving efficiency, thus accept by users, and achieve extraordinary effect, but after adding hydraulic system, improve complexity and the manufacture cost of operation system.In daily production and application process, cat will mount agricultural machinery and implement usually, and agricultural machinery and implement are when farm work, motor is generally in large throttle state, close to constant engine operating mode, speed of a motor vehicle change is little, and the power of machinery is all larger with moment of torsion, the problems such as energy consumption is high, heating value large, poor high temperature stability that so easily cause hydraulic system to exist, even can not realize mouldboard plow farming industry, seriously limit the application area of cat, too increase energy ezpenditure.
Simultaneously due to the working principle of endless-track vehicle driving system and the travel operation principle of two-wheeled farm machinery similar, speed changer be usually integrated with turn to, differential, main deceleration, one or more functions such as braking; But be at least integrated with turning function, what its turning function adopted steering linkages to operate jaw clutch and multi-disc brake usually turns to scheme, specific implementation process is: when cat vehicle turn left to time, left side jaw clutch is separated driver's operation left steering pull bar and left side output shaft is braked, because 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 realize right hand steering, but this steering equipment adopts separation and realizes in conjunction with jaw clutch and break, it turns to precision low, and steering manipulation is poor.
Summary of the invention
Technical problem solved by the invention is to provide a kind of endless-track vehicle integrated form speed changer, 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 speed changer, comprises 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 take-off mechanism and casing, wherein, power input mechanism, double dynamical input mechanism, intermediate transmission and arrestment mechanism, differential speed type driving mechanism and PTO power take-off mechanism integrated after be arranged on casing, left track driving mechanism, the identical symmetry of right-hand track chiain driving mechanism structure is arranged on casing both sides, power input mechanism respectively with PTO power take-off mechanism, double dynamical input mechanism connects, through the power of power input mechanism input, part power is exported by PTO power take-off mechanism, by PTO power take-off mechanism by transmission of power to external procedure part, another part power transfers to intermediate transmission and arrestment mechanism through double dynamical input mechanism, intermediate transmission and arrestment mechanism are connected with differential speed type driving mechanism, outputed power by differential speed type driving mechanism and drive left track driving mechanism and right-hand track chiain driving mechanism, power input mechanism switches with low speed at a high speed for realizing, the output that double dynamical input mechanism is used for forward gear, reverses gear, and differential speed type driving mechanism is used for realizing course changing control, the concrete linkage structure of each mechanism is as follows:
Power input mechanism is connected with PTO power take-off mechanism, and wherein, power inputs first axle one end and is arranged on input end and covers, and the other end is arranged on casing, and input end covers tightly Guan County and is loaded on casing; Power inputs on the first axle and is set with duplex slippage power shift gear, and PTO duplex slippage power shift gear is fitted with power gear shifting shift fork, and power input the first axle one side end be provided with power input bevel gear; Input on the first axle at the power being positioned at power input bevel gear upper end simultaneously and be set with sleeve, input the between centers gap of the first axle for motivation of adjustment and carry out spacing to power input bevel gear;
PTO 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 and PTO power inner end cap is fastening is respectively installed on casing; And PTO duplex power shift gear and the main deceleration driving gear of PTO are installed on PTO power transmission shaft;
PTO output shaft one end is arranged on and exports on outer end cap, the other end is arranged on and exports in inner end cap, export outer end cap and export that inner end cap is fastening is installed on casing, and the seal ring be provided with in output outer end cap for sealing PTO output shaft, the main reduction driven gear of PTO is sleeved on PTO output shaft, and sleeve is installed, for adjusting the between centers gap of PTO output shaft and carrying out spacing to the main reduction driven gear of PTO on the PTO output shaft being positioned at output outer end cap side;
PTO duplex slippage 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; To horizontally slip PTO duplex slippage power shift gear by stirring power gear shifting shift fork, switching with low speed at a high speed to realize PTO output shaft;
In intermediate transmission and arrestment mechanism, jack shaft two-end structure is identical, is arranged in transmission end cap respectively, and driving end covers tightly Guan County and is contained on casing, jack shaft is set with jack shaft driving gear and counter shaft driven gear; Reversing shaft one end is arranged in break end cap, and the other end is arranged in brake axle end cap, and break end cap and brake axle end cap are used for carrying out spacing to reversing shaft, and is fasteningly respectively arranged on casing; Tumbler gear is sleeved on reversing shaft, and engages with jack shaft driving gear; Multi-disc braking steel disc is installed in break end cap, this multi-disc braking steel disc parallel to each other and in interval arrange, and reversing shaft corresponding in break end cap is provided with multi-disc brake strip by spline, this multi-disc brake strip parallel to each other and in interval arrange, every sheet brake strip is equipped with between adjacent two panels braking steel disc simultaneously, and braking steel disc side is provided with snap ring and carries out spacing; Reversing shaft is also provided with platen, and platen is provided with braking shiifter axle, braking shiifter axle for control platen compress or pine from braking steel disc, with realize braking; Platen side snap ring carries out spacing;
In left track driving mechanism, left track drive axle one end is arranged in Driving terminal, and the other end supports outside protheca, for external drive unit through supporting protheca and stretching out; Driving terminal is fastening to be installed on casing, and overlap in supporting protheca and supporting and be connected, in support, cover is connected with Driving terminal;
In double dynamical input mechanism, hydrostatic stepless speed variator is arranged on casing side, and on hydrostatic stepless speed variator, be provided with hydrostatic stepless speed variator power input shaft and hydrostatic stepless speed variator pto＝power take-off, hydrostatic stepless speed variator power input shaft is nested in power and inputs in second axle one end, power inputs the second axle the other end and is arranged in power end cap, and power end covers tightly Guan County and is loaded on casing; Hydrostatic stepless speed variator pto＝power take-off is set with hydrostatic stepless speed variator power output gear, machinery gear driving gear and driven wheel of differential are sleeved on power and input on the second axle, and undertaken spacing by snap ring, driven wheel of differential be sleeved on the power power inputted on the first axle and input bevel gear and engage; 3rd axle two ends are arranged in hubcap respectively, and hubcap is fastening to be installed on casing; 3rd shaft mechanical gear gear, the stepless gear gear of the 3rd axle are arranged on the 3rd axle respectively in slip idling conditions, double dynamical input splined hub is between the 3rd shaft mechanical gear gear and the stepless gear gear of the 3rd axle, 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; In addition, the 3rd axle stepless gear gear engages with hydrostatic stepless speed variator power output gear, and the 3rd shaft mechanical gear gear keeps off driving gear with machinery and engages;
In differential speed type driving mechanism, steering shaft two-end structure is identical, is arranged on respectively in commutation end cap, and commutating, end cap is fastening to be installed on casing, and in steering shaft, being set with differential steering left side gear and reverse idler gear, oil hydraulic motor is arranged on the casing between steering shaft and the wheeled back shaft of the sun; The sun wheeled back shaft one end is sleeved in left track drive axle, and the other end is sleeved in right-hand track chiain live axle, drives left track driving mechanism and right-hand track chiain driving mechanism to walk for outputing power; The wheeled back shaft exterior edge face of the sun is processed with external tooth, this external tooth is for playing the sun gear effect of planetary gears, main reduction driven gear is set with in the middle part of the wheeled back shaft of the sun, main reduction driven gear side is provided with right side planetary gears, opposite side is provided with left side planetary gears, the motor drive shaft of oil hydraulic motor is provided with motor gear, and motor gear engages with reverse idler gear.
In the present invention, in input end cap, the seal ring sealed for inputting the first axle to power is installed.
In the present invention, the seal ring be provided with for sealing PTO output shaft is exported in outer end cap.
In the present invention, supporting in protheca and be provided with deep groove ball bearing, being provided with lip-shaped sealed ring above deep groove ball bearing, for sealing left track drive axle.
In the present invention, sleeve is provided with between jack shaft driving gear and counter shaft driven gear.
In the present invention, the power below driven wheel of differential inputs on the second axle and is set with sleeve.
In the present invention, the 3rd shaft mechanical gear gear, the stepless gear gear of the 3rd axle are arranged on the 3rd axle in slip idling conditions respectively by sliding bearing sleeve.
In the present invention, the steering shaft below reverse idler gear is set with sleeve.
In the present invention, the wheeled back shaft two ends of the sun are respectively arranged with needle bearing, for accepting axial thrust load when left track drive axle and right-hand track chiain live axle dynamic rotary transferring power.
In the present invention, in the planetary gears of left side, left lateral star gear set is on left planetary pinion back shaft, and be arranged symmetrically with along left planetary pinion fixing frame circumferentially dividing equally four groups, left planetary pinion fixing frame is arranged on the wheeled back shaft of the sun by sliding bearing sleeve, left planet carrier gear is articulated on the external tooth of the wheeled back shaft of the sun, left track drive axle, 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 planetary pinion back shaft, and be arranged symmetrically with along right planetary pinion fixing frame circumferentially dividing equally four groups, right planetary pinion fixing frame is arranged on the wheeled back shaft of the sun by sliding bearing sleeve, right planet carrier gear is articulated on the external tooth of the wheeled back shaft of the sun, right-hand track chiain live 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 wheeled back shaft exterior edge face of the sun spline that partners.
In the present invention, when turning to the left, differential steering left side gear and left lateral star gears meshing, when turning to the right, motor gear and left lateral star gears meshing; Simultaneously during upward sliding gear shift shift fork, combined cover moves, be fixed on double dynamical input splined hub and the stepless gear gear of the 3rd axle, power is passed to the 3rd axle stepless gear gear by hydrostatic stepless speed variator power output gear and is passed to double dynamical input splined hub again, then be passed to the 3rd axle input gear, now speed changer is hydrostatic stepless gear, the exportable infinite variable speed forward gear of speed changer and reverse gear shift; Slide downward gear shift shift fork, combined cover moves down, be fixed on double dynamical input splined hub and the 3rd shaft mechanical keeps off on gear, power is passed to the 3rd shaft mechanical gear gear by hydrostatic stepless speed variator power output gear and is passed to double dynamical input splined hub again, then be passed to the 3rd axle input gear, now speed changer is machinery gear;
When needs produce braking, step on brake petal, declutch shift shaft rotates counterclockwise, and declutch shift shaft makes platen move down, platen compresses braking steel disc and brake strip, because brake strip freely can not rotate, brake steel disc and freely can not rotate in transmission end cap circumference in jack shaft circumference; When the frictional force that platen compresses braking steel disc and brake strip is greater than jack shaft driving force, jack shaft produces braking, and because power between jack shaft and left track drive axle is without interruption, therefore intermediate shaft brake, be equal to the braking of left track drive axle, during left track drive axle, endless-track vehicle is braked;
When needs brake off, loosen the brake, declutch shift shaft return, braking steel disc and brake strip produce gap, zerofriction force between braking steel disc and brake strip, brake release;
Due to the right planet carrier gear of oil hydraulic motor one end Direct driver, the other end is by the left planet carrier gear of reverse idler gear commutation rear driving, and the modulus of motor gear and 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 direction is contrary, to form by the planetary carrier differential steering system of fluid motor-driven;
When planetary carrier differential steering system constant speed locking exports, power transfers to the wheeled back shaft of the sun by the input of main reduction driven gear, the sun wheeled back shaft left end is to left planetary pinion, by left lateral star gear transmission to left track drive axle, the sun wheeled back shaft right-hand member is to right planetary pinion, and right lateral star gear transmission is to right-hand track chiain live axle; During equispeed output, oil hydraulic motor does not work, when oil hydraulic motor does not rotate, differential port side gear is equal with the amount of force of reverse idler gear, direction is contrary, steering shaft self-locking, left planet carrier gear, right planet carrier gear are fixed, the rotation on left planetary pinion back shaft of left planetary pinion, the rotation on right planetary pinion back shaft of right planetary pinion, now left track drive axle, right-hand track chiain live axle equispeed output;
When the differential steering of planetary carrier differential steering system exports, oil 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 and constant speed locking export and produce compound motion, left planetary pinion is impelled both also to revolve round the sun around the wheeled back shaft of the sun around the rotation of left planetary pinion back shaft, right planetary pinion both also revolved round the sun around the wheeled back shaft of the sun around the rotation of right planetary pinion back shaft, and the direction of its both sides revolution is identical, both the left track drive axle rotating speed of side had been made to increase, and the rotating speed of opposite side right-hand track chiain live axle reduces, and then realize turning to.
Beneficial effect: the present invention adopts mechanical direct-drive and hydraulic stepless transmission parallel, solves by Change-over knot trap the problem that mechanical direct-drive is combined with the electrodeless formula of hydraulic pressure, effectively improves the high handling with endless-track vehicle of transmission efficiency; And be integrated with braking device, structure is little, operate light, the planet carrier gear clockwise and anticlockwise simultaneously adopting oil hydraulic motor to control driving wheel both sides planetary gears drives pto＝power take-off two ends rotating speed to change to travel, and then realize turning to, this steering structure realizes precisely turning to by regulating hydraulic motor rotary speed, even field pivot turn, and conveniently realize the control of remote machine electrohydraulic integration, effectively overcome existing endless-track vehicle traveling cornering drag, the edge of a field turns to problems such as stopping up mud is serious, manipulation difficulty, also reduce the oeverall quality of speed changer, and then reduce energy consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of preferred embodiment of the present invention.
Fig. 2 is A-A place sectional view in Fig. 1.
Fig. 3 is power input mechanism P in preferred embodiment of the present invention and PTO power take-off 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 preferred embodiment of the present invention.
Fig. 6 is intermediate transmission in preferred embodiment of the present invention and arrestment mechanism structural representation.
Fig. 7 is M place enlarged view in Fig. 6.
Fig. 8 is the double dynamical input mechanism structural representation in preferred embodiment 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 preferred embodiment 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 preferred embodiment of the present invention.
Figure 20 is the right side planetary gears structural representation in preferred embodiment of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
See a kind of endless-track vehicle integrated form speed changer of Fig. 1 ~ Fig. 2, comprise 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 take-off 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 take-off mechanism T are installed on casing X, and casing X bilateral 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 take-off mechanism T, double dynamical input mechanism S respectively, through the power that power input mechanism P inputs, part power is exported by PTO power take-off mechanism T, by PTO power take-off mechanism T by transmission of power to external procedure part, another part power transfers to intermediate transmission and arrestment mechanism M through double dynamical input mechanism S, intermediate transmission and arrestment mechanism M are connected with differential speed type driving mechanism D, and being outputed power by differential speed type driving mechanism D drives left track driving mechanism Q and right-hand track chiain driving mechanism R; Power input mechanism P switches with low speed at a high speed for realizing, 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 comprises power input bevel gear P1, PTO duplex slippage power shift gear P2, power inputs the first axle P3, power gear shifting shift fork P4, PTO duplex power shift gear P5, PTO power transmission shaft P6; PTO power take-off mechanism T comprises the main deceleration driving gear T3 of PTO output shaft T1, PTO main reduction driven gear T2, PTO; Input end cap G1, snap ring G2, seal 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 installed on casing X by bolt G5 is fastening, and is provided with for inputting seal ring G3 that the first axle P3 seals to power and for carrying out the snap ring G2 of hole to location to thrust-bearing G4 in input end cap G1; Power inputs on the first axle P3 and is set with PTO duplex slippage power shift gear P2, PTO duplex slippage power shift gear P2 is fitted with power gear shifting shift fork P4, and input the first axle P3 mono-side end at power power input bevel gear P1 is installed, input on the first axle P3 at the power being positioned at power input bevel gear P1 upper end simultaneously and be set with sleeve G7, input the between centers gap of the first axle P3 for motivation of adjustment and carry out spacing to power input bevel gear P1;
PTO 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 installed on casing X respectively by bolt G5 is fastening, for carrying out spacing to deep groove ball bearing G6, PTO duplex power shift gear P5 is sleeved on PTO power transmission shaft P6 one end, and the PTO power transmission shaft P6 the other end is set with the main deceleration driving gear T3 of PTO;
PTO output shaft T1 one end is arranged on by deep groove ball bearing G6 and exports on outer end cap G11, the other end is arranged on by deep groove ball bearing G6 and exports on inner end cap G19, export outer end cap G11 and export inner end cap G19 for carrying out spacing to deep groove ball bearing G6, and be installed on casing X by bolt G5 is fastening, and the seal ring G3 be provided with in output outer end cap G11 for sealing PTO output shaft T1, 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 carrying out spacing to PTO main reduction driven gear T2,
PTO duplex slippage power shift gear P2 engages with PTO duplex power shift gear P5, and the main reduction driven gear T2 of PTO main deceleration driving gear T3 and PTO engages.
PTO duplex slippage power shift gear P2 inputs on the first axle P3 at power and moves from left to right, high to realize gear, low gear switches, as shown in Figure 4, for low gear, its drive path is described: the right side gear of PTO duplex slippage power shift gear P2 engages with the right side gear of PTO duplex power shift gear P5 → PTO duplex power shift gear P5 drive PTO power transmission shaft P6 rotate → PTO power transmission shaft P6 drives PTO main deceleration driving gear T3 to rotate transferring power → PTO main deceleration driving gear T3 and PTO main reduction driven gear T2 to engage → the main reduction driven gear T2 of PTO drives PTO output shaft T1 to rotate, this transmission process entirety is gearing down, to horizontally slip PTO duplex slippage power shift gear P2 by stirring power gear shifting shift fork P4, switching with low speed at a high speed to realize PTO output shaft T1.
Shown in Figure 5, left track driving mechanism Q comprises left track drive axle Q1, support protheca Q2, support in overlap Q3, snap ring G2, bolt G5, deep groove ball bearing G6, lip-shaped sealed ring G8, Driving terminal G12; Left track drive axle Q1 one end is arranged in Driving terminal G12 by deep groove ball bearing G6, the other end supports outside protheca Q2 through supporting protheca Q2 and stretching out, Driving terminal G12 is installed on casing X by bolt G5 is fastening, overlap Q3 in supporting protheca Q2 and supporting to be connected, overlap Q3 in support and be connected with Driving terminal G12; In addition, support in protheca Q2 and be provided with deep groove ball bearing G6, be provided with lip-shaped sealed ring G8 above deep groove ball bearing G6, for sealing left track drive axle Q1, 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 comprise jack shaft M1, jack shaft driving gear M2, counter shaft driven gear M3, tumbler gear M4, reversing shaft M5, break M6, platen M61, declutch shift shaft M62, braking steel disc M63, brake strip M64, snap ring G2, bolt G5, deep groove ball bearing G6, sleeve G7, transmission end cap G13, break end cap G20 and brake axle end cap G21; Jack shaft M1 two-end structure is identical, is arranged in transmission end cap G13 respectively by deep groove ball bearing G6, and transmission end cap G13 is arranged on casing X by bolt G5 is fastening; And sleeve G7 is set with on jack shaft M1, jack shaft driving gear M2 one end is sleeved on the jack shaft M1 that is positioned at above sleeve G7, the other end engages with tumbler gear M4, tumbler gear M4 is arranged on reversing shaft M5, and counter shaft driven gear M3 is sleeved on the jack shaft M1 that is positioned at below sleeve G7; On jack shaft M1 and reversing shaft M5, snap ring G2 is installed simultaneously, spacing for tumbler gear M4 and jack shaft driving gear M2, increase the object of reversing shaft M5 for changing mechanical gear, because this speed changer is installed on the engine, machinery gear is through this commutation, just can make engine revolution, endless-track vehicle moves forward, otherwise the machinery of car crawler belt gear will be in always reverses gear;
Reversing shaft M5 one end is arranged in break 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, break end cap G20 and brake axle end cap G21 is used for carrying out spacing to reversing shaft M5, and is arranged on casing X respectively by bolt G5 is fastening; Six braking steel disc M63 are installed in break end cap G20, these six braking steel disc M63 parallel to each other and in interval arrange, and reversing shaft M5 corresponding in break end cap G20 is provided with five brake strip M64 by spline, five brake strip M64 are all parallel to each other and arrange in interval, every sheet brake strip M64 is equipped with between adjacent two panels braking steel disc M63, and braking steel disc M63 side is provided with snap ring G2 and carries out spacing; Reversing shaft M5 is also provided with platen M61, and platen M61 is provided with braking shiifter axle M62, braking shiifter axle M62 for control platen M61 and compress or pine 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 petal, actuate declutch shift shaft M62 to rotate counterclockwise, declutch shift shaft M62 makes platen M61 move down, platen M61 compresses braking steel disc M63 and brake strip M64, because brake strip M64 freely can not rotate, brake steel disc M63 and freely can not rotate in transmission end cap G13 circumference in jack shaft M1 circumference; When the frictional force that platen M61 compresses braking steel disc M63 and brake strip M64 is greater than jack shaft M1 driving force, jack shaft M1 produces braking, and because power between jack shaft M1 and left track drive axle Q1 is without interruption, therefore jack shaft M1 brakes, be equal to left track drive axle Q1 and brake, during left track drive axle Q1, endless-track vehicle is braked, this braking system is arranged on the high speed end of speed changer, structure is little, operates light;
Brake off: loosen the brake, declutch shift shaft 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 comprises hydrostatic stepless speed variator S1, hydrostatic stepless speed variator power input shaft S2, machinery gear driving gear S3, power inputs the second axle S4, driven wheel of differential S5, hydrostatic stepless speed variator power output gear S6, hydrostatic stepless speed variator pto＝power take-off 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, 3rd axle stepless gear gear S14, 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 stepless speed variator S1 is arranged on casing X side, and on hydrostatic stepless speed variator S1, be provided with hydrostatic stepless speed variator power input shaft S2 and hydrostatic stepless speed variator pto＝power take-off S7, hydrostatic stepless speed variator power input shaft S2 is nested in power and inputs in second axle S4 one end, power inputs the second axle S4 the other end and is arranged in power end cap G14 by thrust-bearing G4, and power end cap G14 is installed on casing X by bolt G5 is fastening, hydrostatic stepless speed variator pto＝power take-off S7 is set with hydrostatic stepless speed variator 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 on the second axle S4 and is set with sleeve G7, driven wheel of differential S5 be sleeved on the power power inputted on the first axle P3 and input bevel gear P1 and engage,
3rd axle S11 two ends are arranged in hubcap G15 respectively by deep groove ball bearing G6, and hubcap G15 is installed on casing X by bolt G5 is fastening; 3rd shaft mechanical gear gear S13, the 3rd axle stepless gear gear S14 are slip idling conditions respectively by sliding bearing sleeve G10 empty set on the 3rd axle S11, double dynamical input splined hub S10 is between the 3rd shaft mechanical gear gear S13 and the 3rd axle stepless gear gear S14, 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; On the 3rd axle S11, be set with sleeve G7, sleeve G7 one end keeps off gear S13 with the 3rd shaft mechanical and is connected, and the other end is connected with the 3rd axle input gear S12 simultaneously; In addition, the 3rd axle stepless gear gear S14 engages with hydrostatic stepless speed variator power output gear S6, and the 3rd shaft mechanical gear gear S13 keeps off driving gear S3 with machinery and engages; Upward sliding gear shift shift fork S8, combined cover S9 moves, be fixed on double dynamical input splined hub S10 and the 3rd axle stepless gear gear S14, power is passed to the 3rd axle stepless gear gear S14 by hydrostatic stepless speed variator power output gear S6 and is passed to double dynamical input splined hub S10 again, then be passed to the 3rd axle input gear S12, now speed changer is hydrostatic stepless gear, the exportable infinite variable speed forward gear of speed changer and reverse gear shift; Slide downward gear shift shift fork S8, combined cover S9 moves down, be fixed on double dynamical input splined hub S10 and the 3rd shaft mechanical keeps off on gear S13, power is passed to the 3rd shaft mechanical gear gear S13 by hydrostatic stepless speed variator power output gear S6 and is passed to double dynamical input splined hub S10 again, then be passed to the 3rd axle input gear S12, now speed changer is machinery gear, speed changer can not export reverse gear shift when fixing the forward gear exporting a certain speed, and this gear is mainly used in track-laying vehicle field high-efficient homework; Double dynamical input, emphasis is machinery gear efficient driving problem during solution field work and other operating mode hydraulic stepless speed changes manipulation convenience problem.
In the present embodiment, adopt double dynamical input, comprise machinery gear and hydrostatic stepless gear, its two gears power transmission route is as follows:
Machinery gear power transmission route is: and the power power input bevel gear P1 inputted on the first axle P3 engages with driven wheel of differential S5 → driven wheel of differential S5 drives power to input the second axle S4 to rotate transferring power → machinery and keep off driving gear S3 and rotate → mechanically keep off driving gear S3 and keep off gear S13 with the 3rd shaft mechanical and engage → and the 3rd shaft mechanical keeps off gear S13 and drives the 3rd axle S11 to rotate the → the three axle S11 to drive the 3rd axle input gear S12 to rotate the → the three axle input gear S12 by transmission of 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 transferring power → power and transmit into hydrostatic stepless speed variator S1 stepless change from hydrostatic stepless speed variator power input shaft S2, then from hydrostatic stepless speed variator pto＝power take-off S7 output → hydrostatic stepless speed variator pto＝power take-off S7 drive hydrostatic stepless speed variator power output gear S6 rotation → hydrostatic stepless speed variator power output gear S6 engage with the 3rd axle stepless gear gear S14 → the 3rd axle stepless gear gear S14 drives the 3rd axle S11 to rotate the → the three axle S11 to drive the 3rd axle input gear S12 to rotate the → the three axle input gear S12 by transmission of power to intermediate transmission mechanism M.
Shown in Figure 13 ~ 20, differential speed type driving mechanism D comprises differential steering left side gear D1, steering shaft D2, reverse idler gear D3, oil hydraulic motor D4, motor drive shaft D5, motor gear D6, the wheeled back shaft D7 of the sun, right side planetary gears D8, left side planetary gears D9, main reduction driven gear D10, right planetary pinion back shaft D81, right lateral star gear D 82, right lateral carrier gear D 83, right planetary pinion fixing frame D84, left planetary pinion back shaft D91, left lateral star gear D 92, left lateral carrier gear D 93, left planetary pinion fixing frame D94 and left track drive axle Q1, right-hand track chiain live 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 shaft D2 two-end structure is identical, be arranged in commutation end cap G16 respectively by deep groove ball bearing G6, commutation end cap G16 is installed on casing X by bolt G5 is fastening, and on steering shaft D2, be set with differential steering left side gear D1 and reverse idler gear D3, steering shaft D2 below reverse idler gear D3 is set with sleeve G7, oil hydraulic motor D4 is arranged on the casing X between steering shaft D2 and the wheeled back shaft D7 of the sun, the sun wheeled back shaft D7 one end is sleeved in left track drive axle Q1 by deep groove ball bearing G6, the other end is sleeved in right-hand track chiain live axle R1 by deep groove ball bearing G6, left track driving mechanism Q and right-hand track chiain driving mechanism R is driven to walk for outputing power, be respectively arranged with needle bearing G9 at the sun wheeled back shaft D7 two ends simultaneously, for accepting axial thrust load when left track drive axle Q1 and right-hand track chiain live axle R1 dynamic rotary transferring power, the sun wheeled back shaft D7 exterior edge face is processed with external tooth, and this external tooth is for playing the sun gear effect of planetary gears, main reduction driven gear D10 is set with in the middle part of the sun wheeled back shaft 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, the motor drive shaft D5 of oil hydraulic motor D4 is provided with motor gear D6, and 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 planetary pinion back shaft D91, and be arranged symmetrically with along left planetary pinion fixing frame D94 circumferentially dividing equally four groups, left planetary pinion fixing frame D94 is arranged on the wheeled back shaft 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 back shaft D7, left track drive axle 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 planetary pinion back shaft D81, and be arranged symmetrically with along right planetary pinion fixing frame D84 circumferentially dividing equally four groups, right planetary pinion fixing frame D84 is arranged on the wheeled back shaft D7 of the sun by sliding bearing sleeve G10, right lateral carrier gear D 83 is articulated on the external tooth of the wheeled back shaft D7 of the sun, right-hand track chiain live 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, with the external tooth of the sun wheeled back shaft D7 exterior edge face in conjunction with formation a pair spline.
In the present embodiment, planetary gears D9 and right side planetary gears D8 is interconnected in left side: due to oil hydraulic motor D4 one end Direct driver right lateral carrier gear D 83, opposite side is by reverse idler gear D3 commutation rear driving 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 oil hydraulic motor D4 drives, left lateral carrier gear D 93, right lateral carrier gear D 83 rotating speed are equal, and direction is contrary, to form the planetary carrier differential steering system driven by oil hydraulic motor D4; Its working principle:
1, (output of constant speed locking) is driven:
Power is inputted by main reduction driven gear D10 and transfers to the wheeled back shaft D7 of the sun, the sun wheeled back shaft D7 left end is to left lateral star gear D 92, left track drive axle Q1 is transferred to by left lateral star gear D 92, the sun wheeled back shaft D7 right-hand member is to right lateral star gear D 82, and right lateral star gear D 82 transfers to right-hand track chiain live axle R1; During equispeed output, oil hydraulic motor D4 does not work, when oil hydraulic motor D4 does not rotate, the amount of force of differential port side gear D1 and reverse idler gear D3 is equal, direction is contrary, steering shaft 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 planetary pinion back shaft D91, right lateral star gear D 82 rotation on right planetary pinion back shaft D81, now left track drive axle Q1, right-hand track chiain live axle R1 equispeed output;
2, differential steering exports:
When oil hydraulic motor D4 rotates, the input direction of left lateral carrier gear D 93, right lateral carrier gear D 83 is contrary, the power that output speed is equal; Now power and driving (constant speed locking exports) produces compound motion, left lateral star gear D 92 is impelled both also to revolve round the sun around the wheeled back shaft D7 of the sun around left planetary pinion back shaft D91 rotation, right lateral star gear D 82 both also revolved round the sun around the wheeled back shaft D7 of the sun around right planetary pinion back shaft D81 rotation, and the direction of its both sides revolution is identical, both the left track drive axle Q1 rotating speed of side had been made to increase, and the rotating speed of opposite side right-hand track chiain live axle R1 reduces, and then realize turning to.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; 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 all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. an endless-track vehicle integrated form speed changer, comprises 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 take-off 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 take-off mechanism are integrated; Left track driving mechanism, the identical symmetry of right-hand track chiain driving mechanism structure are arranged on casing both sides, and power input mechanism is connected with PTO power take-off mechanism, double dynamical input mechanism respectively; The concrete linkage structure of each mechanism is as follows:
Power input mechanism is connected with PTO power take-off mechanism, and wherein, power inputs first axle one end and is arranged on input end and covers, and the other end is arranged on casing, and input end covers tightly Guan County and is loaded on casing; Power inputs on the first axle and is set with duplex slippage power shift gear, and PTO duplex slippage power shift gear is fitted with power gear shifting shift fork, and power input the first axle one side end be provided with power input bevel gear; Input on the first axle at the power being positioned at power input bevel gear upper end simultaneously and be set with sleeve, input the between centers gap of the first axle for motivation of adjustment and carry out spacing to power input bevel gear;
PTO 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 and PTO power inner end cap is fastening is respectively installed on casing; And PTO duplex power shift gear and the main deceleration driving gear of PTO are installed on PTO power transmission shaft;
PTO output shaft one end is arranged on and exports on outer end cap, the other end is arranged on and exports in inner end cap, export outer end cap and export that inner end cap is fastening is installed on casing, and the seal ring be provided with in output outer end cap for sealing PTO output shaft, the main reduction driven gear of PTO is sleeved on PTO output shaft, and sleeve is installed, for adjusting the between centers gap of PTO output shaft and carrying out spacing to the main reduction driven gear of PTO on the PTO output shaft being positioned at output outer end cap side;
PTO duplex slippage 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, jack shaft two-end structure is identical, is arranged in transmission end cap respectively, and driving end covers tightly Guan County and is contained on casing, jack shaft is set with jack shaft driving gear and counter shaft driven gear; Reversing shaft one end is arranged in break end cap, and the other end is arranged in brake axle end cap, and break end cap and brake axle end cap are used for carrying out spacing to reversing shaft, and is fasteningly respectively arranged on casing; Tumbler gear is sleeved on reversing shaft, and engages with jack shaft driving gear; Multi-disc braking steel disc is installed in break end cap, this multi-disc braking steel disc parallel to each other and in interval arrange, and reversing shaft corresponding in break end cap is provided with multi-disc brake strip by spline, this multi-disc brake strip is parallel to each other and arrange in interval, and simultaneously every sheet brake strip is equipped with between adjacent two panels braking steel disc; Reversing shaft is also provided with platen, and platen is provided with braking shiifter axle, braking shiifter axle for control platen compress or pine from braking steel disc, with realize braking;
In left track driving mechanism, left track drive axle one end is arranged in Driving terminal, and the other end supports outside protheca through supporting protheca and stretching out; Driving terminal is fastening to be installed on casing, and overlap in supporting protheca and supporting and be connected, in support, cover is connected with Driving terminal;
In double dynamical input mechanism, hydrostatic stepless speed variator is arranged on casing side, and on hydrostatic stepless speed variator, be provided with hydrostatic stepless speed variator power input shaft and hydrostatic stepless speed variator pto＝power take-off, hydrostatic stepless speed variator power input shaft is nested in power and inputs in second axle one end, power inputs the second axle the other end and is arranged in power end cap, and power end covers tightly Guan County and is loaded on casing; Hydrostatic stepless speed variator pto＝power take-off is set with hydrostatic stepless speed variator power output gear, machinery gear driving gear and driven wheel of differential are sleeved on power and input on the second axle, and undertaken spacing by snap ring, driven wheel of differential be sleeved on the power power inputted on the first axle and input bevel gear and engage; 3rd axle two ends are arranged in hubcap respectively, and hubcap is fastening to be installed on casing; 3rd shaft mechanical gear gear, the stepless gear gear of the 3rd axle are arranged on the 3rd axle respectively in slip idling conditions, double dynamical input splined hub is between the 3rd shaft mechanical gear gear and the stepless gear gear of the 3rd axle, 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; In addition, the 3rd axle stepless gear gear engages with hydrostatic stepless speed variator power output gear, and the 3rd shaft mechanical gear gear keeps off driving gear with machinery and engages;
In differential speed type driving mechanism, steering shaft two-end structure is identical, is arranged on respectively in commutation end cap, and commutating, end cap is fastening to be installed on casing, and in steering shaft, being set with differential steering left side gear and reverse idler gear, oil hydraulic motor is arranged on the casing between steering shaft and the wheeled back shaft of the sun; The sun wheeled back shaft one end is sleeved in left track drive axle, and the other end is sleeved in right-hand track chiain live axle, drives left track driving mechanism and right-hand track chiain driving mechanism to walk for outputing power; The wheeled back shaft exterior edge face of the sun is processed with external tooth, this external tooth is for playing the sun gear effect of planetary gears, main reduction driven gear is set with in the middle part of the wheeled back shaft of the sun, main reduction driven gear side is provided with right side planetary gears, opposite side is provided with left side planetary gears, the motor drive shaft of oil hydraulic motor is provided with motor gear, and motor gear engages with reverse idler gear.
2. a kind of endless-track vehicle integrated form speed changer according to claim 1, is characterized in that, is provided with the seal ring sealed for inputting the first axle to power in input end cap.
3. a kind of endless-track vehicle integrated form speed changer according to claim 1, is characterized in that, exports in outer end cap the seal ring be provided with for sealing PTO output shaft.
4. a kind of endless-track vehicle integrated form speed changer according to claim 1, is characterized in that, supports in protheca and is provided with deep groove ball bearing, be provided with lip-shaped sealed ring above deep groove ball bearing.
5. a kind of endless-track vehicle integrated form speed changer according to claim 1, is characterized in that, be provided with sleeve between jack shaft driving gear and counter shaft driven gear.
6. a kind of endless-track vehicle integrated form speed changer according to claim 1, is characterized in that, the 3rd shaft mechanical gear gear, the stepless gear gear of the 3rd axle are arranged on the 3rd axle respectively by sliding bearing sleeve.
7. a kind of endless-track vehicle integrated form speed changer according to claim 1, is characterized in that, the wheeled back shaft two ends of the sun are respectively arranged with needle bearing.
8. a kind of endless-track vehicle integrated form speed changer according to claim 1, it is characterized in that, in the planetary gears of left side, left lateral star gear set is on left planetary pinion back shaft, and be arranged symmetrically with along left planetary pinion fixing frame circumferentially dividing equally four groups, left planetary pinion fixing frame is arranged on the wheeled back shaft of the sun by sliding bearing sleeve, and left planet carrier gear is articulated on the external tooth of the wheeled back shaft of the sun, left track drive axle, and is engaged with motor gear by reverse idler gear.
9. a kind of endless-track vehicle integrated form speed changer according to claim 1, it is characterized in that, in the planetary gears of right side, right lateral star gear set is on right planetary pinion back shaft, and be arranged symmetrically with along right planetary pinion fixing frame circumferentially dividing equally four groups, right planetary pinion fixing frame is arranged on the wheeled back shaft of the sun by sliding bearing sleeve, and right planet carrier gear is articulated on the external tooth of the wheeled back shaft of the sun, right-hand track chiain live axle, and engages with motor gear.
10. a kind of endless-track vehicle integrated form speed changer according to any one of claim 1 ~ 9, is characterized in that, when turning to the left, and differential steering left side gear and left lateral star gears meshing, when turning to the right, motor gear and left lateral star gears meshing; Simultaneously during upward sliding gear shift shift fork, combined cover moves, be fixed on double dynamical input splined hub and the stepless gear gear of the 3rd axle, power is passed to the 3rd axle stepless gear gear by hydrostatic stepless speed variator power output gear and is passed to double dynamical input splined hub again, then be passed to the 3rd axle input gear, now speed changer is hydrostatic stepless gear, the exportable infinite variable speed forward gear of speed changer and reverse gear shift; Slide downward gear shift shift fork, combined cover moves down, be fixed on double dynamical input splined hub and the 3rd shaft mechanical keeps off on gear, power is passed to the 3rd shaft mechanical gear gear by hydrostatic stepless speed variator power output gear and is passed to double dynamical input splined hub again, then be passed to the 3rd axle input gear, now speed changer is machinery gear;
When needs produce braking, step on brake petal, declutch shift shaft rotates counterclockwise, and declutch shift shaft makes platen move down, platen compresses braking steel disc and brake strip, because brake strip freely can not rotate, brake steel disc and freely can not rotate in transmission end cap circumference in jack shaft circumference; When the frictional force that platen compresses braking steel disc and brake strip is greater than jack shaft driving force, jack shaft produces braking, and because power between jack shaft and left track drive axle is without interruption, therefore intermediate shaft brake, be equal to the braking of left track drive axle, during left track drive axle, endless-track vehicle is braked;
When needs brake off, loosen the brake, declutch shift shaft return, braking steel disc and brake strip produce gap, zerofriction force between braking steel disc and brake strip, brake release;
Due to the right planet carrier gear of oil hydraulic motor one end Direct driver, the other end is by the left planet carrier gear of reverse idler gear commutation rear driving, and the modulus of motor gear and 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 direction is contrary, to form by the planetary carrier differential steering system of fluid motor-driven;
When planetary carrier differential steering system constant speed locking exports, power transfers to the wheeled back shaft of the sun by the input of main reduction driven gear, the sun wheeled back shaft left end is to left planetary pinion, by left lateral star gear transmission to left track drive axle, the sun wheeled back shaft right-hand member is to right planetary pinion, and right lateral star gear transmission is to right-hand track chiain live axle; During equispeed output, oil hydraulic motor does not work, when oil hydraulic motor does not rotate, differential port side gear is equal with the amount of force of reverse idler gear, direction is contrary, steering shaft self-locking, left planet carrier gear, right planet carrier gear are fixed, the rotation on left planetary pinion back shaft of left planetary pinion, the rotation on right planetary pinion back shaft of right planetary pinion, now left track drive axle, right-hand track chiain live axle equispeed output;
When the differential steering of planetary carrier differential steering system exports, oil 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 and constant speed locking export and produce compound motion, left planetary pinion is impelled both also to revolve round the sun around the wheeled back shaft of the sun around the rotation of left planetary pinion back shaft, right planetary pinion both also revolved round the sun around the wheeled back shaft of the sun around the rotation of right planetary pinion back shaft, and the direction of its both sides revolution is identical, both the left track drive axle rotating speed of side had been made to increase, and the rotating speed of opposite side right-hand track chiain live axle reduces, and then realize turning to.
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| CN106641129A (en) * | 2017-02-15 | 2017-05-10 | 苏州萨伯工业设计有限公司 | Farm machinery integrated five-gear transmission method |
| CN106678311A (en) * | 2017-02-15 | 2017-05-17 | 苏州萨伯工业设计有限公司 | Farm machinery integrated four-gear transmission method |
| CN106763742A (en) * | 2017-02-15 | 2017-05-31 | 苏州萨伯工业设计有限公司 | Crawler-type harvester ratio rotating direction control method |
| CN107339393A (en) * | 2017-05-23 | 2017-11-10 | 浙江云洲科技有限公司 | A kind of dual-purpose gearbox of track type tractor machines/variable speed |
| CN110546025A (en) * | 2017-05-31 | 2019-12-06 | 贝以系统哈格伦斯公司 | tracked vehicle having a motor arranged coaxially with the drive wheel |
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| CN104196977A (en) * | 2014-08-12 | 2014-12-10 | 吉首市宗南重工制造有限公司 | Hydraulic pressure infinitely variable transmission for crawler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106641129A (en) * | 2017-02-15 | 2017-05-10 | 苏州萨伯工业设计有限公司 | Farm machinery integrated five-gear transmission method |
| CN106678311A (en) * | 2017-02-15 | 2017-05-17 | 苏州萨伯工业设计有限公司 | Farm machinery integrated four-gear transmission method |
| CN106763742A (en) * | 2017-02-15 | 2017-05-31 | 苏州萨伯工业设计有限公司 | Crawler-type harvester ratio rotating direction control method |
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| CN107339393A (en) * | 2017-05-23 | 2017-11-10 | 浙江云洲科技有限公司 | A kind of dual-purpose gearbox of track type tractor machines/variable speed |
| 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 |
| CN110546025A (en) * | 2017-05-31 | 2019-12-06 | 贝以系统哈格伦斯公司 | tracked vehicle having a motor arranged coaxially with the drive wheel |
| CN110546025B (en) * | 2017-05-31 | 2023-09-29 | 贝以系统哈格伦斯公司 | Tracked vehicle with motor coaxially arranged with driving wheel |
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