CN204942459U - Double dynamical input type many grades and differential type turn to endless-track vehicle speed changer - Google Patents
Double dynamical input type many grades and differential type turn to endless-track vehicle speed changer Download PDFInfo
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- CN204942459U CN204942459U CN201520717377.9U CN201520717377U CN204942459U CN 204942459 U CN204942459 U CN 204942459U CN 201520717377 U CN201520717377 U CN 201520717377U CN 204942459 U CN204942459 U CN 204942459U
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Abstract
Double dynamical input type many grades and differential type turn to endless-track vehicle speed changer, casing is provided with power input mechanism, double dynamical input mechanism, three gear speed change and arrestment mechanisms, differential speed type driving mechanism and PTO power take-off mechanism, 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, and double dynamical input mechanism keeps off speed change with three and arrestment mechanism is connected, three gear speed changes and arrestment mechanism are connected with differential speed type driving mechanism, the problem that mechanical direct-drive is combined with the electrodeless formula of hydraulic pressure is solved by Change-over knot trap, and three gears export, transmission efficiency is high, shift gears convenient, brake structure is little, operate light, adopt oil hydraulic motor to control planet carrier gear clockwise and anticlockwise drives pto=power take-off two ends rotating speed to realize turning to change to travel simultaneously, effectively overcome existing endless-track vehicle and travel cornering drag, the edge of a field turns to problems such as stopping up mud.
Description
Technical field
The utility model relates to endless-track vehicle actuation techniques field, particularly relates to a kind of double dynamical input type many grades and turns to endless-track vehicle speed changer with differential type.
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.
Model utility content
The technical problem that the utility model solves is to provide a kind of double dynamical input type many grades and differential type to turn to endless-track vehicle speed changer, to solve the shortcoming in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
Double dynamical input type many grades and differential type turn to endless-track vehicle speed changer, comprise power input mechanism, double dynamical input mechanism, three gear speed change and arrestment mechanism, differential speed type driving mechanism, left track driving mechanism, right-hand track chiain driving mechanism, PTO power take-off mechanism and casings, wherein, power input mechanism, double dynamical input mechanism, three gear speed changes and arrestment mechanism, differential speed type driving mechanism and PTO power take-off mechanism are installed 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, double dynamical input mechanism keeps off speed change with three and arrestment mechanism is connected, another part power transfers to three gear speed change and arrestment mechanisms through double dynamical input mechanism, three gear speed changes 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; 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 PTO duplex slippage power shift gear, 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 in 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; PTO duplex power shift gear is sleeved on PTO power transmission shaft one end, and the PTO power transmission shaft the other end is set with the main deceleration driving gear of PTO;
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 respectively installed on casing, 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 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;
Three keep off in speed changes and arrestment mechanism, and shifting shaft two-end structure is identical, is arranged in transmission end cap respectively by deep groove ball bearing, and driving end covers tightly Guan County and is contained on casing; One gear driven gear, two gear driven gears, three gear driven gears are arranged on shifting shaft respectively, and a gear driven gear, two gear driven gears, three gear driven gears can only dally on shifting shaft M1, can not to shifting shaft outputting power, main deceleration driving gear is sleeved in the middle part of shifting shaft; One-two gear splined hub, three gear splined hub are arranged on the external splines of shifting shaft by internal spline, three gear splined hub are provided with three gear combined covers, three gear combined covers are provided with three gear shift forks, one-two gear splined hub is provided with one-two gear combined cover, one-two gear combined cover is provided with one-two gear shift fork; Brake axle 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 brake axle, and is fasteningly respectively arranged on casing; Brake axle is provided with the tumbler gear engaged with main deceleration 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 brake axle corresponding in break end cap is provided with multi-disc brake strip by spline, this multi-disc brake strip is all parallel to each other and arranges in interval, and every sheet brake strip is equipped with between adjacent two panels braking steel disc, braking steel disc side is provided with snap ring and carries out spacing; Brake axle 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 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, and hydrostatic stepless speed variator power output gear side is provided with snap ring, for spacing; Machinery gear driving gear and driven wheel of differential are sleeved on power and input on the second axle, and are 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; Double dynamical transaxle two-end structure is identical, is arranged on respectively in hubcap, and hubcap is fastening to be installed on casing; It is slip idling conditions that machinery gear driven gear, stepless gear driven gear are arranged on double dynamical transaxle upper end respectively, two gear driving gears and keep off driving gear and are sleeved on double dynamical transaxle lower end, and it is spacing by sleeve, double dynamical input splined hub is between machinery gear driven gear and stepless gear driven gear, and by spline package on double dynamical transaxle, combined cover is arranged in double dynamical input splined hub, switching shift fork is arranged on combined cover, and combined cover keeps off driven gear with stepless gear driven gear or machinery and is combined under the effect of selector fork; In addition, stepless gear driven gear engages with hydrostatic stepless speed variator power output gear, machinery gear driven gear keeps off driving gear with machinery and engages, one gear driven gear and keeps off driving gear and engages, two gear driven gears and two keep off driving gear and engage, the gears meshing of three gear driven gears and combined cover, is provided with snap ring below two gear driving gears, for carrying out spacing to two gear driving gears;
In differential speed type driving mechanism, steering shaft two-end structure is identical, be arranged in commutation end cap respectively, 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, and the sun wheeled back shaft one end is sleeved in left track drive axle, 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 the external tooth for playing the effect of planetary gears sun gear, 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 utility model, in input end cap, the seal ring sealed for inputting the first axle to power is installed.
In the utility model, export in outer end cap the seal ring be provided with for sealing PTO output shaft.
In the utility model, 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 utility model, a gear driven gear, two gear driven gears, three gear driven gears are arranged on shifting shaft respectively by sliding bearing sleeve.
In the utility model, it is slip idling conditions that machinery gear driven gear, stepless gear driven gear are arranged on double dynamical transaxle upper end respectively by sliding bearing sleeve.
In the utility model, below driven wheel of differential, be set with sleeve.
In the utility model, the steering shaft below reverse idler gear is set with sleeve.
In the utility model, 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 utility model, 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 utility model, 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 utility model, 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 utility model, 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; Upward sliding switches shift fork simultaneously, combined cover moves, be fixed on double dynamical input splined hub and stepless gear driven gear, power is passed to stepless gear driven gear by hydrostatic stepless speed variator power output gear and is passed to double dynamical input splined hub again, then be passed to double dynamical transaxle, now speed changer is hydrostatic stepless gear, the exportable infinite variable speed forward gear of speed changer and reverse gear shift; Slide downward switches shift fork, combined cover moves down, being fixed on double dynamical input splined hub keeps off on driven gear with machinery, power is passed to machinery gear driven gear by machinery gear driving gear and is passed to double dynamical input splined hub again, then be passed to double dynamical transaxle, now speed changer is machinery gear, and can not export reverse gear shift when the forward gear exporting a certain speed fixed by speed changer, 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;
Three gear speed changes and arrestment mechanism gearshift drive path as follows:
1) when three gear combined covers are in neutral gear position, one-two gear gearshift
Change to a gear: one-two gear shift fork moves, one-two gear combined cover keeps off driven gear tooth of shifting gears simultaneously and is combined with one-two external tooth, keeping off splined hub; Power is passed to a gear driven gear by a gear driving gear, transmission of power to one-two is kept off combined cover by one gear driven gear, one-two gear combined cover is passed to one-two gear splined hub, and one-two gear splined hub is by transmission of power to shifting shaft, and endless-track vehicle enters a gear and travels;
Change to two gears: one-two gear shift fork moves down, one-two gear combined cover keeps off driven gear tooth of shifting gears simultaneously and is combined with one-two external tooth, two keeping off splined hub, power is passed to two gear driven gears by two gear driving gears, transmission of power to one-two is kept off combined cover by two gear driven gears, one-two gear combined cover is passed to one-two gear splined hub, one-two gear splined hub is by transmission of power to shifting shaft, and endless-track vehicle enters two gears and travels;
Change to neutral: when one-two gear shift fork stops meta, one-two gear combined cover is only combined with one-two external tooth keeping off splined hub, and do not transmit any power, endless-track vehicle enters neutral;
2) when one-two gear combined cover is in neutral gear position, three gear gearshifts
Change to three gears: three gear shift forks move down, three gear combined covers keep off driven gear tooth of shifting gears simultaneously and are combined with three external tooths, three keeping off splined hub, power is passed to three gear driven gears by combined cover, transmission of power to three is kept off combined cover by three gear driven gears, three gear combined covers are passed to three gear splined hub, three gear splined hub are by transmission of power to shifting shaft, and endless-track vehicle enters three gears and travels;
Change to neutral: three gear shift forks move, three gear combined covers are only combined with three external tooths keeping off splined hub, and do not transmit any power, endless-track vehicle enters neutral;
When needs produce braking, step on brake petal, braking shiifter axle rotates counterclockwise, braking shiifter axle makes platen move down, platen compresses braking steel disc and brake strip, because brake strip freely can not rotate in brake axle circumference, braking steel disc freely can not rotate in transmission end cap circumference, when the frictional force that platen compresses braking steel disc and brake strip is greater than brake axle driving force, brake axle produces braking, because power between brake axle and left track drive axle is without interruption, therefore brake axle produces braking, 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, braking shiifter axle 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 utility model 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 three gears export, shift gears convenient, brake 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 remote machine electrohydraulic integration and control, effectively overcome existing endless-track vehicle and travel cornering drag, the edge of a field and turn to problems such as stopping up mud is serious, manipulation difficulty.
Accompanying drawing explanation
Fig. 1 is the structural representation of preferred embodiment of the present utility model.
Fig. 2 is A-A place sectional view in Fig. 1.
Fig. 3 is power input mechanism in preferred embodiment of the present utility model and PTO power take-off mechanism 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 utility model.
Fig. 6 is three gear speed change and arrestment mechanism structural representations in preferred embodiment of the present utility model.
Fig. 7 is the double dynamical input mechanism structural representation in preferred embodiment of the present utility model.
Fig. 8 is H-H place sectional view in Fig. 7.
Fig. 9 is I-I place sectional view in Fig. 7.
Figure 10 is J-J place sectional view in Fig. 7.
Figure 11 is K-K place sectional view in Fig. 7.
Figure 12 is the differential speed type driving mechanism structure schematic diagram in preferred embodiment of the present utility model.
Figure 13 is U-U place sectional view in Figure 12.
Figure 14 is V-V place sectional view in Figure 12.
Figure 15 is W-W place sectional view in Figure 12.
Figure 16 is Y-Y place sectional view in Figure 12.
Figure 17 is Z-Z place sectional view in Figure 12.
Figure 18 is the left side planetary gears structural representation in preferred embodiment of the present utility model.
Figure 19 is the right side planetary gears structural representation in preferred embodiment of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Turn to endless-track vehicle speed changer see the double dynamical input type many grades of Fig. 1 ~ Fig. 2 and differential type, comprise power input mechanism P, double dynamical input mechanism S, three gear speed changes 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, three gear speed changes 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 three gear speed changes and arrestment mechanism M through double dynamical input mechanism S, three gear speed changes 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 Figure 6, three gear speed changes and arrestment mechanism M comprise shifting shaft M1, three gear splined hub M2, three gear shift fork M3, three gear combined cover M4, three gear driven gear M5, main deceleration driving gear M6, one gear driven gear M7, one-two gear shift fork M8, one-two gear combined cover M9, one-two gear splined hub M10, two gear driven gear M11, tumbler gear M12, braking shiifter axle M13, platen M14, brake strip M15, braking steel disc M16, brake axle M17, snap ring G2, bolt G5, deep groove ball bearing G6, sleeve G7, sliding bearing sleeve G10, transmission end cap G13, break end cap G20 and brake axle end cap G21, shifting 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, one gear driven gear M7, two gear driven gear M11, three gear driven gear M5 are arranged on shifting shaft M1 respectively by sliding bearing sleeve G10, and a gear driven gear M7, two gear driven gear M11, three gear driven gear M5 can only dally on shifting shaft M1, can not to shifting shaft M1 outputting power, main deceleration driving gear M6 is sleeved in the middle part of shifting shaft M1, one-two gear splined hub M10, three gear splined hub M2 are arranged on by internal spline on the external splines of shifting shaft M1, three gear splined hub M2 are provided with three gear combined cover M4, three gear combined cover M4 are provided with three gear shift fork M3, one-two gear splined hub M10 is provided with one-two gear combined cover M9, one-two gear combined cover M9 is provided with one-two gear shift fork M8,
Brake axle M17 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 brake axle M17, and is arranged on casing X respectively by bolt G5 is fastening; Brake axle M17 is provided with the tumbler gear M12 engaged with main deceleration driving gear M6, six braking steel disc M16 are installed in break end cap G20, these six braking steel disc M16 parallel to each other and in interval arrange, and brake axle M17 corresponding in break end cap G20 is provided with five brake strip M15 by spline, five brake strip M15 are all parallel to each other and arrange in interval, every sheet brake strip M15 is equipped with between adjacent two panels braking steel disc M16, and braking steel disc M16 side is provided with snap ring G2 and carries out spacing; Brake axle M17 is also provided with platen M14, and platen M14 is provided with braking shiifter axle M13, braking shiifter axle M13 for control platen M14 and compress or pine from braking steel disc M16, to realize braking; Platen M14 side snap ring G2 carries out spacing.
Shown in Fig. 7 ~ 11, 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, switch shift fork S8, combined cover S9, double dynamical input splined hub S10, two gear driving gear S11, double dynamical transaxle S12, one gear driving gear S13, machinery gear driven gear S14, stepless gear driven gear S15, snap ring G2, thrust-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, and hydrostatic stepless speed variator power output gear S6 side is provided with snap ring G2, for spacing, 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 below driven wheel of differential S5, be 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,
Double dynamical transaxle S12 two-end structure is identical, is arranged in hubcap G15 respectively by deep groove ball bearing G6, and hubcap G15 is installed on casing X by bolt G5 is fastening, machinery gear driven gear S14, it is slip idling conditions that stepless gear driven gear S15 is arranged on double dynamical transaxle S12 upper end respectively by sliding bearing sleeve G10, two gear driving gear S11 and keep off driving gear S13 and are sleeved on double dynamical transaxle S12 lower end, and it is spacing by sleeve G7, double dynamical input splined hub S10 is between machinery gear driven gear S14 and stepless gear driven gear S15, and by spline package on double dynamical transaxle S12, combined cover S9 is arranged on double dynamical input splined hub S10, switching shift fork S8 is arranged on combined cover S9, combined cover S9 keeps off driven gear S14 with stepless gear driven gear S15 or machinery and is combined under the effect of selector fork S8, in addition, stepless gear driven gear S15 engages with hydrostatic stepless speed variator power output gear S6, machinery gear driven gear S14 keeps off driving gear S3 with machinery and engages, one gear driven gear M7 and one keeps off driving gear S13 and engages, two gear driven gear M11 and two keep off driving gear S11 and engage, three gear driven gear M5 and the gears meshing with combined cover S9, be provided with snap ring G2 below two gear driving gear S11, for carrying out spacing to two gear driving gear S11.
In the present embodiment, double dynamical input mechanism S internally-powered drive path is as follows:
One, power inputs the first axle P3 through power and inputs, and power input bevel gear P1 engage with driven wheel of differential S5, and driven wheel of differential S5 drives power to input the second axle S4 and machinery keeps off driving gear S3 rotation;
Two, power inputs the second axle S4 and drives hydrostatic stepless speed variator power input shaft S2 to rotate, power exports from hydrostatic stepless speed variator pto=power take-off S7 after hydrostatic stepless speed variator S1 stepless change, and hydrostatic stepless speed variator power output gear S6 engages with stepless gear driven gear S15; Machinery gear driving gear S3 keeps off driven gear S14 with machinery and engages;
Three, power is regulated to be hydrostatic stepless gear input or the input of machinery gear:
1) when regulating power to be hydrostatic stepless gear input, upward sliding selector fork S8, combined cover S9 moves, combined cover S9 is separately fixed on double dynamical input splined hub S10 and stepless gear driven gear S15, the bang path of power is: hydrostatic stepless speed variator power output gear S6 → stepless gear driven gear S15 → double dynamical input splined hub S10 → double dynamical transaxle S12, the now exportable infinite variable speed forward gear of speed changer and reverse gear shift;
2) when regulating power to be the input of machinery gear, slide downward selector fork S8, combined cover S9 moves down, combined cover S9 is separately fixed at double dynamical input splined hub S10 and keeps off on driven gear S14 with machinery, and the bang path of power is: machinery gear driving gear S3 → machinery gear driven gear S14 → double dynamical input splined hub S10 → double dynamical transaxle S12; Now the forward gear exporting a certain speed fixed by speed changer, can not export reverse gear shift, 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.
Three gear speed changes and arrestment mechanism M shift gears drive path as follows:
1) one-two gear gearshift
Change to a gear: one-two gear shift fork M8 moves, one-two gear combined cover M9 keeps off driven gear M7 tooth of shifting gears simultaneously and is combined with one-two external tooth, keeping off splined hub M10; Power keeps off driven gear M7 by a gear driving gear S13 to, and a gear driven gear M7 to-two keeps off combined cover M9, and one-two gear combined cover M9 to-two keeps off splined hub M10, and one-two gear splined hub M10 is to shifting shaft M1;
Change to neutral: one-two gear shift fork M8 stops meta, one-two gear combined cover M9 is only combined with one-two external tooth keeping off splined hub M10, does not transmit any power, changes to neutral;
2) two gears are changed to
One-two gear shift fork M8 moves down, one-two gear combined cover M9 keeps off driven gear M11 tooth of shifting gears simultaneously and is combined with one-two external tooth, two keeping off splined hub M10, power keeps off driven gear M11 by two gear driving gear S11 to two, two gear driven gear M11 to-two keep off combined cover M9, one-two gear combined cover M9 to-two keeps off splined hub M10, and one-two gear splined hub M10 is to shifting shaft M1;
3) three gear gearshifts
Change to three gears: three gear shift fork M3 move down, three gear combined cover M4 keep off driven gear M5 tooth of shifting gears simultaneously and are combined with three external tooths, three keeping off splined hub M2, power keeps off driven gear M5 by combined cover S9 to three, three gear driven gear M5 to three keep off combined cover M4, three gear combined cover M4 to three keep off splined hub M2, and three gear splined hub M2 are to shifting shaft M1;
Change to neutral: three gear shift fork M3 move, three gear combined cover M4 are only combined with three external tooths keeping off splined hub M2, do not transmit any power, change to neutral;
Lock mutual principle: by gearshift, only have when one-two gear combined cover M9 is in neutral gear position, just can change to three gears; Only have when three gear combined cover M4 are in neutral gear position, one-two gear could be switched.
Braking operation principle is as follows:
Produce braking: step on brake petal, braking shiifter axle M13 rotates counterclockwise, braking shiifter axle M13 makes platen M14 move down, platen M14 compresses braking steel disc M16 and brake strip M15, because brake strip M15 freely can not rotate, brake steel disc M16 and freely can not rotate in transmission end cap G13 circumference in brake axle M17 circumference; When the frictional force that platen M14 compresses braking steel disc M16 and brake strip M15 is greater than brake axle M17 driving force, brake axle M17 produces braking; Because power between brake axle M17 and left track drive axle Q1 is without interruption, therefore brake axle M17 produces braking, is equal to left track drive axle Q1 and brakes, and equivalent and 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, braking shiifter axle M13 return, braking steel disc M16 and brake strip M15 produces gap, zerofriction force between braking steel disc M16 and brake strip M15, brake release.
Shown in Figure 12 ~ 19, 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, thrust-bearing G4, bolt G5, deep groove ball bearing G6, sleeve G7, needle bearing G9, sliding bearing sleeve G10, 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 utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (9)
1. double dynamical input type many grades and differential type turn to endless-track vehicle speed changer, comprise power input mechanism, double dynamical input mechanism, three gear speed change and arrestment mechanism, differential speed type driving mechanism, left track driving mechanism, right-hand track chiain driving mechanism, PTO power take-off mechanism and casings; It is characterized in that, power input mechanism, double dynamical input mechanism, three gear speed changes and arrestment mechanism, differential speed type driving mechanism and PTO power take-off mechanism are installed on casing; Left track driving mechanism, the identical symmetry of right-hand track chiain driving mechanism structure are arranged on casing both sides; The concrete linkage structure of each mechanism is as follows:
Power input mechanism is connected with PTO power take-off mechanism; 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 PTO duplex slippage power shift gear, PTO duplex slippage power shift gear is fitted with power gear shifting shift fork, and input the first axle one side end at power power input bevel gear is installed, input on the first axle at the power being positioned at power input bevel gear upper end simultaneously and be set with sleeve;
PTO power transmission shaft one end is arranged in 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; PTO duplex power shift gear is sleeved on PTO power transmission shaft one end, and the PTO power transmission shaft the other end is set with the main deceleration driving gear of PTO;
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 respectively installed on casing, the main reduction driven gear of PTO is sleeved on PTO output shaft, and is provided with sleeve 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 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;
Three keep off in speed changes and arrestment mechanism, and shifting shaft two-end structure is identical, is arranged in transmission end cap respectively by deep groove ball bearing, and driving end covers tightly Guan County and is contained on casing; One gear driven gear, two gear driven gears, three gear driven gears are arranged on shifting shaft respectively, and main deceleration driving gear is sleeved in the middle part of shifting shaft; One-two gear splined hub, three gear splined hub are arranged on the external splines of shifting shaft by internal spline, three gear splined hub are provided with three gear combined covers, three gear combined covers are provided with three gear shift forks, one-two gear splined hub is provided with one-two gear combined cover, one-two gear combined cover is provided with one-two gear shift fork; Brake axle 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 fastening is respectively arranged on casing; Brake axle is provided with the tumbler gear engaged with main deceleration 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 brake axle corresponding in break end cap is provided with multi-disc brake strip by spline, this multi-disc brake strip is all parallel to each other and arranges in interval, and every sheet brake strip is equipped with between adjacent two panels braking steel disc; Brake axle is also provided with platen, and platen is provided with braking shiifter axle;
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, and hydrostatic stepless speed variator power output gear side is provided with snap ring for spacing; Machinery gear driving gear and driven wheel of differential are sleeved on power and input on the second axle, and are 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; Double dynamical transaxle two-end structure is identical, is arranged on respectively in hubcap, and hubcap is fastening to be installed on casing; It is slip idling conditions that machinery gear driven gear, stepless gear driven gear are arranged on double dynamical transaxle upper end respectively, two gear driving gears and keep off driving gear and are sleeved on double dynamical transaxle lower end, and it is spacing by sleeve, double dynamical input splined hub is between machinery gear driven gear and stepless gear driven gear, and by spline package on double dynamical transaxle, combined cover is arranged in double dynamical input splined hub, switches shift fork and is arranged on combined cover; In addition, stepless gear driven gear engages with hydrostatic stepless speed variator power output gear, machinery gear driven gear keeps off driving gear with machinery and engages, one gear driven gear and keeps off driving gear and engages, two gear driven gears and two keep off driving gear and engage, the gears meshing of three gear driven gears and combined cover;
In differential speed type driving mechanism, steering shaft two-end structure is identical, be arranged in commutation end cap respectively, commutating, end cap is fastening to be installed on casing, and in steering shaft, be 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, and 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; The wheeled back shaft exterior edge face of the sun is processed with the external tooth for playing the effect of planetary gears sun gear, 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. double dynamical input type many grades according to claim 1 and differential type turn to endless-track vehicle speed changer, it is characterized in that, are provided with the seal ring sealed for inputting the first axle to power in input end cap.
3. double dynamical input type many grades according to claim 1 and differential type turn to endless-track vehicle speed changer, it is characterized in that, export in outer end cap the seal ring be provided with for sealing PTO output shaft.
4. double dynamical input type many grades according to claim 1 and differential type turn to endless-track vehicle speed changer, it is characterized in that, support in protheca and are provided with deep groove ball bearing, be provided with lip-shaped sealed ring above deep groove ball bearing.
5. double dynamical input type many grades according to claim 1 and differential type turn to endless-track vehicle speed changer, it is characterized in that, are set with sleeve below driven wheel of differential.
6. double dynamical input type many grades according to claim 1 and differential type turn to endless-track vehicle speed changer, and it is characterized in that, the wheeled back shaft two ends of the sun are respectively arranged with needle bearing.
7. double dynamical input type many grades according to claim 1 and differential type turn to endless-track vehicle speed changer, it is characterized in that, 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.
8. double dynamical input type many grades according to claim 1 and differential type turn to endless-track vehicle speed changer, 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, 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.
9. double dynamical input type many grades according to claim 1 and differential type turn to endless-track vehicle speed changer, and it is characterized in that, 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.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105065619A (en) * | 2015-09-16 | 2015-11-18 | 湖南省农友机械集团有限公司 | Dual-power input type multi-gear and differential-type steering track vehicle transmission |
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2015
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105065619A (en) * | 2015-09-16 | 2015-11-18 | 湖南省农友机械集团有限公司 | Dual-power input type multi-gear and differential-type steering track vehicle transmission |
CN105065619B (en) * | 2015-09-16 | 2016-08-24 | 湖南省农友机械集团有限公司 | Many grades of double dynamical input type and differential type turn to endless-track vehicle speed changer |
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