CN106594221B - A kind of crawler-type harvester ratio steering-type speed changer - Google Patents

A kind of crawler-type harvester ratio steering-type speed changer Download PDF

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Publication number
CN106594221B
CN106594221B CN201710080540.9A CN201710080540A CN106594221B CN 106594221 B CN106594221 B CN 106594221B CN 201710080540 A CN201710080540 A CN 201710080540A CN 106594221 B CN106594221 B CN 106594221B
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CN
China
Prior art keywords
gear
shaft
steering
casing
wheel
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Expired - Fee Related
Application number
CN201710080540.9A
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Chinese (zh)
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CN106594221A (en
Inventor
孙松林
肖名涛
熊力
魏刚
刘欣
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Hunan Agricultural University
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Hunan Agricultural University
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Priority to CN201710080540.9A priority Critical patent/CN106594221B/en
Publication of CN106594221A publication Critical patent/CN106594221A/en
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Publication of CN106594221B publication Critical patent/CN106594221B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H47/00Combinations of mechanical gearing with fluid clutches or fluid gearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/021Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/023Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/08General details of gearing of gearings with members having orbital motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H2057/02039Gearboxes for particular applications
    • F16H2057/02043Gearboxes for particular applications for vehicle transmissions
    • F16H2057/02056Gearboxes for particular applications for vehicle transmissions for utility vehicles, e.g. tractors or agricultural machines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/20Transmissions using gears with orbital motion
    • F16H2200/2002Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2007Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

A kind of crawler-type harvester ratio steering-type speed changer, power are transferred to speed changing assembly by clutch, and speed changing assembly outputs power to left and right sides Athey wheel power output shaft by planetary gear mechanism;And the gear ring of planetary gear mechanism is controlled by hydrostatic stepless speed change device, when the unpowered output of hydrostatic stepless speed change device, planetary gear mechanism is individually driven by speed changing assembly, harvester straight-line travelling, when the dynamic output of hydrostatic stepless speed change device, planetary gear mechanism is driven by two sets of Power compounds causes both sides crawler belt speed discrepancy occur to realize that differential speed type turns to, and steering angular velocity has proportionate relationship with hydrostatic stepless speed change device rotating speed;Hydrostatic stepless speed change device is arranged on the second axle, it is consistent with caterpillar band harvester advance and astern direction that it inputs steering, so that crawler-type harvester has identical steering characteristic in advance and reversing, advantageously reduce and turn to mud accumulation, improve rice field flatness and steering manipulation.

Description

A kind of crawler-type harvester ratio steering-type speed changer
Technical field
The present invention relates to crawler equipment technical field of power transmission, more particularly to a kind of crawler-type harvester to be turned to ratio Formula speed changer.
Background technology
Rice due to during growth is whole water requirement it is especially big, rice field long-term storage, so as to cause rice field soil property soft, carrying Ability, wheel-type working machine tool easily sink to skidding after going to the field, and are not suitable for paddy-field-working;Track-type work machine is due to contact area Greatly, unitary ground pressure is small, sink during farm work small, and small, rice field strong adaptability is destroyed to rice field.But existing crawler type is received The embedded steering by clutch of cutting mill generally use tooth, by separation or skid steer side power during steering, make steering inner track Speed turns to less than outer track speed so as to realize, for this steering mode when low-angle turns to low speed, it is more accurate to turn to, right Farmland is destroyed small;When wide-angle turns to (such as the edge of a field turn around operating mode), due to turning to inner track stop motion, crawler belt harvesting Machine surrounds inner track central rotation, causes to turn to the accumulation of surrounding mud, destroys farmland, be unfavorable for farmland water storage, especially mesh The preceding secondary rice of late rice is popular, improves harvested farm flattening degree, is advantageous to secondary rice production, improves yield.This turn simultaneously To mode, due to thering is side crawler belt to run out of steam when turning to, cause steering efficiency low;And existing hydrostatic stepless speed change device The proportions constant of input speed and engine speed, cause under identical steering angle, different stalls correspond to different steerings Angular speed, and then influence to turn to precision.
The content of the invention
Technical problem solved by the invention is to provide a kind of crawler-type harvester ratio steering-type speed changer, with solution The shortcomings that in certainly above-mentioned background technology.
Technical problem solved by the invention is realized using following technical scheme:
A kind of crawler-type harvester ratio steering-type speed changer, including clutch assembly, speed changing assembly, steering power biography Dynamic assembly, Athey wheel drive assembly and casing assembly, wherein, speed changing assembly, steering power transmission are installed always in casing assembly Into and Athey wheel drive assembly, clutch assembly be connected with speed changing assembly, speed changing assembly is connected with steering power drive assembly, turn It is connected to power transmission assembly with Athey wheel drive assembly, each mechanism concrete structure is as follows:
Casing assembly includes casing;
Speed changing assembly includes gear, intermediate transmission mechanism, planetary gear mechanism and reverse gear mechanism;
In gear, clutch is arranged on casing, and transmission input shaft both ends are separately mounted on casing, speed changer Be set with successively on input shaft the 1 gear-driving gear that reverses gear, 2 gear driving gears and 3 gear driving gears, and 2 gear driving gears with 2-3 gear splined hubs are provided with transmission input shaft between 3 gear driving gears, 2-3 gear splined hubs are led to transmission input shaft Spline fitted installation is crossed, 2-3 gear combined covers are installed in 2-3 gear splined hubs, 2-3 gear shift forks are set in 2-3 by spline slide Keep off in splined hub, transmission input shaft inputs axis connection by spline and hydrostatic stepless speed change device and coordinates passing power;The Two axle both ends are separately mounted on casing, and 1 gear driven gear, the driven gear that reverses gear and 2 that driving gear engages are kept off-reversed gear with 1 2 gear driven gears of gear driving gear engagement, the 3 gear driven gears engaged with 3 gear driving gears are sleeved on the second axle successively, 1 gear-splined hub of reversing gear is provided with the second axle between 1 gear driven gear and the driven gear that reverses gear, 1 keeps off-reverse gear splined hub On 1 gear-reverse gear combined cover, 1 gear, and-back fork is inserted into 1 gear-reverses gear in splined hub is installed;
In intermediate transmission mechanism, jackshaft both ends are separately mounted on casing, and the jackshaft engaged with 2 gear driven gears passes Moving gear is sleeved on jackshaft;
In planetary gear mechanism, left planet carrier shaft is set with the inside of sun wheel shaft one end, outside is machined with the left sun Take turns and left gear ring support frame is stretched out in left outside end cap by flange bearing, right lateral is set with the inside of the sun wheel shaft other end Carrier axle, outside is machined with right sun gear and stretches out right gear ring support frame in right outer end cap by flange bearing, with Between shaft transmission gear engage sun wheel shaft driven gear be sleeved in sun wheel shaft;Left planet carrier shaft one end is provided with left lateral star Frame axle driving gear, the other end are provided with the left lateral star-wheel engaged with left sun gear, and left lateral star-wheel passes through left lateral star-wheel supporting pin On left lateral carrier support, left lateral star-wheel rotates around left lateral star-wheel supporting pin, while left gear ring internal tooth and left lateral star-wheel Engaged transmission, left gear ring side are arranged on left inside end cap, and opposite side is fastened on left gear ring support frame, left inside end cap, left outside End cap is separately mounted on casing;Right planet carrier shaft one end is provided with right planet carrier shaft driving gear, and the other end is provided with and the right side The right lateral star-wheel of sun gear engagement, right lateral star-wheel are arranged on right lateral carrier support by planetary gear supporting pin, and right lateral star-wheel encloses Rotated around right lateral star-wheel supporting pin, while right gear ring internal tooth and right lateral star-wheel engaged transmission, right gear ring external tooth and right turn idle pulley Gear engages;Right gear ring side is arranged in right inner end cap, and opposite side is fastened on right gear ring support frame, and right inner end cap, the right side are outer End cap is separately mounted on casing;
In reverse gear mechanism, reverse gear shaft both ends are separately mounted on casing, and reversing gear for being engaged with the driven gear that reverses gear is lazy Wheel gear is arranged on reverse gear shaft;
Steering power drive assembly includes hydrostatic stepless speed change device and steering gear;Hydrostatic variable speed dress Put and be securedly mounted on casing, and hydrostatic stepless speed change device input shaft and hydrostatic are provided with hydrostatic stepless speed change device Stepless speed change device output shaft is pressed, the hydrostatic stepless speed change device output gear engaged with jackshaft tooth sector is sleeved on quiet On hydraulic variable speed unit output shaft, hydrostatic stepless speed change device is driven by hydrostatic stepless speed change device input shaft, Hydrostatic stepless speed change device output shaft is used to drive steering gear;
In steering gear, steering intermediate shaft both ends are separately mounted on casing, defeated with hydrostatic stepless speed change device Go out the steering intermediate shaft gear set of gear engagement on steering intermediate shaft;Steering spindle one end is arranged in steering spindle upper end cover, The other end is set with steering spindle right side gear through flange bearing, and flange bearing is arranged on casing, with left gear ring spatially The steering spindle left side gear of engagement, the steering spindle driven gear engaged with steering intermediate shaft gear are sleeved in steering spindle successively; Right turn idle pulley gear one end is arranged on casing by flange bearing, and the other end is arranged in steering spindle bottom end cover, steering spindle Upper end cover, steering spindle bottom end cover are arranged on casing, and right turn idle pulley gear engages with steering spindle right side gear;
In Athey wheel drive assembly, left track sprocket shaft one end is arranged on casing and stretches out casing, other end installation On casing and stretch out outside the driving upper end cover being arranged on casing, driving upper end cover is arranged on casing, left crawler driving whell Axle spline upper sleeve is equipped with left track sprocket shaft driven gear;Right-hand track chiain live axle one end is arranged on casing and stretches out case Body, the other end are arranged on casing and stretched out outside the driving bottom end cover being arranged on casing, and driving bottom end cover is arranged on casing, Right-hand track chiain live axle driven gear is sleeved on right-hand track chiain live axle.
In the present invention, 2 gear driving gears keep off driving gear axle sleeve empty sets on transmission input shaft by 2.
In the present invention, 3 gear driving gears keep off driving gear axle sleeve empty sets on transmission input shaft by 3.
In the present invention, the second axle and casing contact position are provided with back-up ring.
In the present invention, 1 gear driven gear is by 1 gear driven gear axle sleeve empty set on the second axle, and reverse gear driven gear By reversing gear driven gear axle sleeve empty set on the second axle.
In the present invention, middle shaft transmission gear side is provided with snap ring, spacing for being carried out to jackshaft travelling gear.
In the present invention, right planet carrier shaft is arranged on sun wheel shaft one end by right needle bearing, and left planet carrier shaft passes through The needle bearing that rolls left is arranged on the sun wheel shaft other end.
In the present invention, the left side for supporting left lateral star-wheel to surround the rotation of left lateral star-wheel supporting pin is provided with left lateral star-wheel Planetary gear axle sleeve, while left planet carrier shaft driving gear side is provided with back-up ring, opposite side is provided with snap ring.
In the present invention, the right side that the rotation of right lateral star-wheel supporting pin is surrounded for supports right planetary gear is provided with right lateral star-wheel Planetary gear axle sleeve, while right planet carrier shaft driving gear side is provided with back-up ring, opposite side is provided with snap ring.
In the present invention, left track sprocket shaft driven gear side is provided with snap ring, is covered with dust and is installed on driving upper end cover It is interior and be set on left track sprocket shaft.
In the present invention, right-hand track chiain live axle driven gear side is provided with snap ring, is covered with dust and is installed on driving bottom end cover It is interior and be set on right-hand track chiain live axle.
In the present invention, when crawler-type harvester carries out linear drives, power is transferred to too by sun wheel shaft driven gear Positive wheel shaft, then power be divided into two, be transferred to left sun gear and right sun gear respectively, wherein, left sun wheel drive left lateral star Wheel rotation, because left gear ring is diverted power locking equal in magnitude, in opposite direction in the steering spindle of transmission mechanism, left gear ring can not Rotation, left planet carrier shaft is transferred to left planet carrier shaft by left sun wheel drive, power, then is transferred to left planet carrier shaft driving tooth Wheel;Similarly, right sun wheel drive right lateral carrier axle rotation, and then right planet carrier shaft driving gear is driven, due to dynamic without turning to When power inputs, left gear ring is locked out with right gear ring, the output of both sides power at constant speed, crawler-type harvester straight-line travelling.
In the present invention, when crawler-type harvester needs to turn to, hydrostatic stepless speed change device rotates forward, hydrostatic nothing Shaft transmission gear rotates among the output gear driving of level speed change gear, and middle shaft transmission gear driving jackshaft rotates, jackshaft Steering intermediate shaft pinion rotation is driven, steering intermediate shaft gear driving steering spindle driven gear rotates, and steering spindle driven gear drives Dynamic steering axes, steering spindle driving steering spindle left side gear and steering spindle right side gear rotate, the driving of steering spindle left side gear Left ring gear against rotation, steering spindle right side gear driving right turn idle pulley pinion rotation, the right ring gear against rotation of right turn idler gear wheel drive; Because steering spindle left side gear drives left ring gear against rotation, and steering spindle right side gear passes through the right gear ring of right turn idler gear wheel drive Rotate so that left and right sides gear ring constant speed opposite direction rotates, and both sides gear ring is diverted mechanism locking during straight-line travelling, due to hydrostatic Stepless speed change device driving is pressed, destroys the dynamic balance of both sides gear ring, effect of the both sides gear ring in hydrostatic stepless speed change device Lower constant speed reversely rotates, after this rotary speed synthesizes with sun gear input speed so that left planet carrier shaft and right planet carrier shaft Unequal rotating speed is exported, so as to promote driving wheel both ends to export different rotating speeds, and then realizes and is turned to side;Similarly, hydrostatic is worked as When pressure stepless speed change device rotates backward, crawler equipment turns to opposite side.
Beneficial effect:The present invention is realized using hydrostatic stepless speed change device driving planetary gear mechanism and turned to, and is turned To when do not interrupt track drive power, and it is certain that the output speed of steering angular velocity and hydrostatic stepless speed change device can be caused to have Proportionate relationship, the control of steering direction and angular speed determines by the steering of hydrostatic stepless speed change device with rotating speed, steering precision Accurately, efficiency high is turned to, advantageously reduces and turns to mud accumulation, improve rice field flatness;Simultaneously because hydrostatic variable speed Device is arranged on the second axle, so that crawler-type harvester has similar steering characteristic when different gears travel, is turned To handling good.
Brief description of the drawings
Fig. 1 is the structural representation of presently preferred embodiments of the present invention.
Fig. 2 is B profiles at A-A in Fig. 1.
Fig. 3 is the forward gear power transmission line figure in presently preferred embodiments of the present invention.
Fig. 4 is the planetary gear mechanism drive path figure in presently preferred embodiments of the present invention.
Fig. 5 is the gear structural representation in presently preferred embodiments of the present invention.
Fig. 6 is the power transmission line figure that reverses gear in presently preferred embodiments of the present invention.
Fig. 7 is C profiles at A-A in Fig. 1.
Fig. 8 is the right view of presently preferred embodiments of the present invention.
Fig. 9 is the Athey wheel drive assembly structural representation in presently preferred embodiments of the present invention.
Figure 10 is the steering power drive assembly structural representation in presently preferred embodiments of the present invention.
Figure 11 is D profiles at A-A in Fig. 1.
Figure 12 is speed changing assembly and steering power drive assembly scheme of installation in presently preferred embodiments of the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Conjunction is specifically illustrating, and the present invention is expanded on further.
Referring to a kind of Fig. 1 crawler-type harvester ratio steering-type speed changer, including clutch assembly 1, speed changing assembly 2nd, steering power drive assembly 3, Athey wheel drive assembly 4 and casing assembly 5, wherein, speed changing assembly 2, steering power transmission are total It is separately mounted into 3, Athey wheel drive assembly 4 in casing assembly 5, clutch assembly 1 is connected with speed changing assembly 2, speed changing assembly 2 It is connected with steering power drive assembly 3, steering power drive assembly 3 is connected with Athey wheel drive assembly 4, each mechanism concrete structure It is as follows:
Referring to shown in Fig. 2~Fig. 8, Figure 10, speed changing assembly 2 includes gear E, intermediate transmission mechanism F, planetary gear and passed Motivation structure G and reverse gear mechanism J;
Wherein, gear E include sealing ring E1, clutch fastening bolt E2, deep groove ball bearing (E3, E13, E18, E33), transmission input shaft E4,1 keep off-reversed gear driving gear E5,2 gear driving gear axle sleeve E6,2 gear driving gear E7,2-3 gears Splined hub E8,2-3 gear combined cover E9,2-3 gear shift fork E10,3 gear driving gear E11,3 gear driving gear axle sleeve E12, bottom end cover E14, upper end cover E31, cover baffle E15, end cap fastening bolt (E16, E32), spline E17, back-up ring (E19, E30), 3 gears are driven Gear E20, the second axle E21,2 gear driven gear E22, the driven gear E23 that reverses gear, the driven gear axle sleeve E24 that reverses gear, 1 keep off-reversed gear Combined cover E25,1 gear-back fork E26,1 are kept off-splined hub of reversing gear E27,1 gear driven gear E28 and 1 gear driven gear axle sleeve E29, clutch C are fastened on casing 51 by clutch fastening bolt E2, and transmission input shaft E4 one end passes through deep-groove ball axle E3 is held on casing 51, the other end is arranged on casing 51 by deep groove ball bearing E13, and outside transmission input shaft E4 Side is provided with sealing ring E1, and transmission input shaft E4 is set with the 1 gear-driving gear E5 that reverses gear, 2 gear driving gear E7 and 3 successively Driving gear E11 is kept off, and 2- is provided with the transmission input shaft E4 between 2 gear driving gear E7 and 3 gear driving gear E11 3 gear splined hub E8,2-3 gear splined hub E8 and transmission input shaft E4 are installed by spline fitted, are installed on 2-3 gear splined hubs E8 There are 2-3 gear combined cover E9,2-3 gear shift fork E10 to be set in 2-3 by spline slide to keep off on splined hub E8,2 gear driving gear E7 lead to Cross 2 gear driving gear axle sleeve E6 to be sleeved on transmission input shaft E4,3 gear driving gear E11 pass through 3 gear driving gear axle sleeves E12 is sleeved on transmission input shaft E4, and transmission input shaft E4 drives hydrostatic stepless speed change device H by spline E17;The Two axle E21 one end are arranged in bottom end cover E14 by deep groove ball bearing E18, and the other end is arranged on upper by deep groove ball bearing E33 In end cap E31, bottom end cover E14 is arranged on casing by end cap fastening bolt E16, upper end cover E31 by end cap fastening bolt E32 On 51, the driving gear E5 1 gear driven gear E28 engaged, the driven gear E23 that reverses gear are kept off-reversed gear with 1, keep off driving gear E7 with 2 2 gear driven gear E22 of engagement, the 3 gear driven gear E20 engaged with 3 gear driving gear E11 are sleeved on the second axle E21 successively On, 1 gear-splined hub of reversing gear E27 is provided with the second axle E21 between the 1 gear driven gear E28 and driven gear E23 that reverses gear, 1 keeps off-being provided with 1 gear on splined hub of reversing gear E27-, and reverse gear combined cover E25,1 gear-back fork E26 is inserted into 1 gear-that reverse gear spline On hub E27;Back-up ring E19 and back-up ring E30 is arranged on the second axle E21 and casing contact position, and 1 gear driven gear E28 is driven by 1 gear Gear bush E29 is sleeved on the second axle E21, and the driven gear E23 that reverses gear is sleeved on second by the driven gear axle sleeve E24 that reverses gear On axle E21;Cover baffle E15 is installed on bottom end cover E14;
Intermediate transmission mechanism F includes bolt (F1, F10), upper driving end lid F2, underdrive end cap F8, deep groove ball bearing (F3, F7), jackshaft F4, middle shaft transmission gear F5, snap ring F6 and cover baffle F9;Jackshaft F4 one end passes through deep-groove ball axle F3 is held in upper driving end lid F2, the other end is arranged in underdrive end cap F8 by deep groove ball bearing F7, upper driving end Cover F2 to be arranged on casing 51 by bolt F10 by bolt F1, underdrive end cap F8, in engaging with 2 gear driven gear E22 Between shaft transmission gear F5 be sleeved on jackshaft F4, snap ring F6 is arranged on middle shaft transmission gear F5 sides, for jackshaft Travelling gear F5 progress is spacing, and cover baffle F9 is provided with underdrive end cap F8;
Planetary gear mechanism G include right planet carrier shaft G1, snap ring (G2, G44), right planet carrier shaft driving gear G3, Back-up ring (G4, G42), right inner end cap G5, left inside end cap G41, right gear ring G6, right needle bearing G7, right gear ring support G 8, bolt (G9, G12, G20, G33, G36, G40), right sun gear G10, right outer end cap G11, left outside end cap G35, deep groove ball bearing (G13, G19, G21, G25, G26, G32), flange bearing (G14, G31), right lateral carrier support G15, right lateral star-wheel G16, right lateral spider gear shaft Cover G17, right lateral star-wheel supporting pin G18, sun wheel shaft G22, sun wheel shaft driven gear G23, snap ring G24, the support of left lateral star-wheel Sell G27, left lateral star-wheel axle sleeve G28, left lateral star-wheel G29, left lateral carrier support G30, left sun gear G34, left gear ring support frame G37, the needle bearing G38 that rolls left, left gear ring G39, left planet carrier shaft driving gear G43 and left planet carrier shaft G45;
Sun wheel shaft G22 one end is sleeved on by right needle bearing G7 on the inside of right planet carrier shaft G1, outside passes through deep-groove ball Bearing G21 is sleeved on right inner end cap G5, and sun wheel shaft G22 is sleeved on by the needle bearing G38 that rolls left on the inside of left planet carrier shaft G45 The other end, outside are sleeved on left inside end cap G41 by deep groove ball bearing G25, the sun engaged with middle shaft transmission gear F5 Wheel shaft driven gear G23 is sleeved on sun wheel shaft G22, and sun wheel shaft driven gear G23 sides are provided with snap ring G24;
Sun wheel shaft G22 one end is machined with right sun gear G10 and stretches out right gear ring support G 8 by flange bearing G14 In right outer end cap G11, deep groove ball bearing G13, right lateral star-wheel G16 and right sun gear G10 are installed in right outer end cap G11 Engagement, right lateral star-wheel G16 surround right lateral star-wheel supporting pin by right lateral star-wheel axle sleeve G17 supports right planetary gear supporting pin G18 G18 is rotated, and right lateral star-wheel G16 is arranged on right lateral carrier support G15, and right gear ring G6 internal tooths engage with right lateral star-wheel G16, right tooth Circle G6 external tooths engage with right turn idle pulley gear K16, and right gear ring G6 sides are arranged on right inner end cap by deep groove ball bearing G19 On G5, opposite side is fastened in right gear ring support G 8 by bolt G9, and right inner end cap G5 is arranged on casing 51 by bolt G20 On, deep groove ball bearing G21 is installed in right inner end cap G5;Right planet carrier shaft driving gear G3 is sleeved on right planet carrier shaft G1, Right planet carrier shaft driving gear G3 sides are provided with back-up ring G4 simultaneously, opposite side is provided with snap ring G2;
The sun wheel shaft G22 other end is machined with left sun gear G34 and stretches out left gear ring support frame by flange bearing G31 G37 is arranged in left outside end cap G35, and left outside end cap G35 is provided with deep groove ball bearing G32, left lateral star-wheel G29 and left sun gear G34 is engaged, and left lateral star-wheel G29 supports left lateral star-wheel supporting pin G27 by left lateral star-wheel axle sleeve G28, and surrounds left lateral star-wheel branch Support pin G27 rotations, left lateral star-wheel G29 are arranged on left lateral carrier support G30, and left gear ring G39 internal tooths engage with left lateral star-wheel G29 Transmission, and left gear ring G39 sides are arranged on left inside end cap G41 by deep groove ball bearing G26, opposite side is tight by bolt G36 Gu in left gear ring support G 37, left inside end cap G41 is arranged on casing 51 by bolt G40, is installed in left inside end cap G41 There is deep groove ball bearing G25;Left planet carrier shaft driving gear G43 is sleeved on left planet carrier shaft G45, while in left planet carrier shaft master Moving gear G43 sides are provided with back-up ring G42, and opposite side is provided with snap ring G44;
Reverse gear mechanism J includes bolt (J1, J10), the upper end cover J2 that reverses gear, reverse gear bottom end cover J8, deep groove ball bearing (J3, J9), reverse gear shaft J4, snap ring J5, reverse gear idle pulley gear J6 and cover baffle J7;Reverse gear shaft J4 one end passes through deep groove ball bearing J3 is arranged on and reversed gear in upper end cover J2, and the other end is arranged on by deep groove ball bearing J9 and reversed gear in bottom end cover J8, and reverse gear upper end cover J2 is arranged on casing 51 by bolt J1, the bottom end cover J8 that reverses gear by bolt J10, and that is engaged with the driven gear E23 that reverses gear falls Keep off idle pulley gear J6 to be arranged on reverse gear shaft J4, and idle pulley gear J6 sides of reversing gear are provided with snap ring J5, reverse gear bottom end cover J8 On cover baffle J7 is installed;
Casing assembly 5 includes casing 51.
Referring to shown in Figure 11~Figure 12, steering power drive assembly 3 includes hydrostatic stepless speed change device H and is driven with turning to Mechanism K;
Hydrostatic stepless speed change device H includes hydrostatic stepless speed change device input shaft H1, hydrostatic stepless speed change device Output shaft H2, hydrostatic stepless speed change device output gear H3, snap ring H4 and hydrostatic variable speed H5;Hydrostatic variable speed Device H is securedly mounted on casing 51 by screw, and is provided with hydrostatic variable speed on hydrostatic stepless speed change device H5 Device input shaft H1, hydrostatic stepless speed change device output shaft H2, the hydrostatic stepless change engaged with jackshaft tooth sector F7 Speed variator output gear H3 is sleeved on hydrostatic stepless speed change device output shaft H2, and is exported in hydrostatic stepless speed change device Gear H3 sides are provided with snap ring H4;Hydrostatic stepless speed change device input shaft H1 is used to external impetus passing to hydrostatic nothing Level speed change H5, hydrostatic stepless speed change device output shaft H2 are used for hydrostatic variable speed H5 power output;
Steering gear K includes bolt (K1, K13, K25), jackshaft upper end cover K2, jackshaft bottom end cover K8, steering Axle bottom end cover K13, steering spindle upper end cover K24, deep groove ball bearing (K3, K7, K14, K23), steering intermediate shaft K4, steering intermediate shaft Gear K5, snap ring (K6, K10, K19), steering spindle right side gear K9, cover baffle K11, right turn idle pulley gear K15, flange shaft Hold (K16, K18), back-up ring K17, steering spindle driven gear K20, steering spindle K21 and steering spindle left side gear K22, steering intermediate shaft K4 one end is arranged in jackshaft upper end cover K2 by deep groove ball bearing K3, and the other end is arranged on centre by deep groove ball bearing K7 On axle bottom end cover K8, jackshaft upper end cover K2 is arranged on casing 51 by bolt K1, is exported with hydrostatic stepless speed change device The steering intermediate shaft gear K5 of gear H3 engagements is sleeved on steering intermediate shaft K4, and steering intermediate shaft gear K5 sides are provided with card Ring K6;Steering spindle K21 one end is arranged in steering spindle upper end cover K24 by deep groove ball bearing K23, and the other end passes through flange bearing K18 is set with steering spindle right side gear K9, flange bearing K18 on casing 51, is spatially engaged with left gear ring G39 Steering spindle left side gear K22, the steering spindle driven gear K20 engaged with steering intermediate shaft gear K5 are sleeved on steering spindle successively On K21, and steering spindle driven gear K20 sides are provided with snap ring K19;Right turn idle pulley gear K15 one end passes through flange shaft K16 is held on casing 51, the other end is arranged in steering spindle bottom end cover K13 by deep groove ball bearing K14, steering spindle upper end K24 is covered to be arranged on casing 51 by bolt K12 by bolt K25, steering spindle bottom end cover K13, and right turn idle pulley gear K15 Engaged with steering spindle right side gear K9;
K0 represents that this two gears spatially engage.
It is shown in Figure 9, Athey wheel drive assembly 4 include (snap ring 41,411), right-hand track chiain live axle driven gear 42, Flange bearing (43,419), right-hand track chiain live axle 44, bottom end cover 45, driving upper end cover 417 are driven, is covered with dust (46,416), is close Seal (47,415), bolt (48,414), deep groove ball bearing (49,412,413), back-up ring (410,419), left track sprocket shaft 418 and left track sprocket shaft driven gear 420;Left one end of track sprocket shaft 418 is arranged on case by deep groove ball bearing 412 On body 51 and stretch out casing 51, the other end by the installation casing 51 of deep groove ball bearing 413 and stretch out be arranged on casing 51 on Drive outside upper end cover 417, drive and sealing ring 415 is installed in upper end cover 417, and be arranged on by bolt 414 on casing 51;It is left Track sprocket shaft driven gear 420 is sleeved on the position that left track sprocket shaft 418 is stretched out outside casing 51, and snap ring 411 is set In the left side of track sprocket shaft driven gear 420, being covered with dust 416 is installed in driving upper end cover 417 and is set in left crawler belt and drive On the axis of a movable block 418, sealing ring 415 is arranged at deep groove ball bearing 413 and is covered with dust between 416;
The one end of right-hand track chiain live axle 44 is arranged on casing 51 by deep groove ball bearing 43 and stretches out casing 51, the other end By in the installation casing 51 of deep groove ball bearing 49 and stretch out be arranged on casing 51 on driving bottom end cover 45 outside, drive bottom end cover 45 Sealing ring 47 is installed, and is arranged on by bolt 48 on casing 51;Right-hand track chiain live axle driven gear 42 is sleeved on right shoe The position stretched out with live axle 44 outside casing 51, snap ring 41 are arranged on the side of right-hand track chiain live axle driven gear 42, are covered with dust 46 are installed in driving bottom end cover 45 and are set on right-hand track chiain live axle 44, and sealing ring 47 is arranged at the He of deep groove ball bearing 49 It is covered with dust between 46.
Gearshift principle:
1 gear
Clutch C → transmission input shaft E4 → 1 is kept off-reverses gear driving gear E5, and → 1 gear driven gear E28 → 1 is kept off-reverses gear Combined cover E25 → 1 keeps off-reversed gear the gear driven gear E22 of the axle E21 of splined hub E27 → second → 2 → middle shaft transmission gear F5 → too Positive wheel shaft driven gear G23;
2 gears
Clutch C → transmission input shaft E4 → 2-3 gear splined hub E8 → 2-3 gear combined covers E9 → 2 keep off driving gear E7 → 2 gear driven gear E22 → middle shaft transmission gear F5 → sun wheel shaft driven gear G23;
3 gears
Clutch C → transmission input shaft E4 → 2-3 gear splined hub E8 → 2-3 gear combined covers E9 → 3 keep off driving gear E11 The gear driven gear E22 of the axle E21 of → 3 gear driven gear E20 → second → 2 → middle shaft transmission gear F5 → sun wheel shaft driven tooth Take turns G23;
Reverse gear
1 gear:Clutch C → transmission input shaft E4 → 1 is kept off-the driving gear E5 → reverse gear idle pulley gear J6 → that reverse gear reverse gear The gear driven gear E22 of the axle E21 of driven gear E23 → 1 is kept off-combined cover E25 → 1 of reversing gear is kept off-splined hub of reversing gear E27 → second → 2 → middle shaft transmission gear F5 → sun wheel shaft driven gear G23.
Linear motor principle
Power is transferred to sun wheel shaft G21 by sun wheel shaft driven gear G23, and power is then divided into two to be transferred to respectively Left sun gear G34 and right sun gear G10, wherein, left sun gear G34 drives left lateral star-wheel G29, because left gear ring G39 is diverted Transmission mechanism locking (both sides gear ring is diverted power locking equal in magnitude, in opposite direction on axle K21), left gear ring G39 can not revolve Turn, according to Planetary Gear Transmission principle, left planet carrier shaft G45 is driven by left sun gear G34, and power is transferred to left planet carrier shaft G45, it is being transferred to left planet carrier shaft driving gear G43;Similarly, right sun gear G10 drives right planet carrier shaft G1 rotations, and then drives Right planet carrier shaft driving gear G3 is moved, because when being inputted without steering power, left gear ring G39 is locked out with right gear ring G6, both sides Power at constant speed exports, crawler-type harvester straight-line travelling.
Steering power transfer route:1 gear, 2 gear, 3 gear, 4 gear power be transferred to respectively the second axle E21, the second axle E21 → Hydrostatic stepless speed change device input shaft H1 → hydrostatic stepless speed change device output shaft H2 → hydrostatic stepless speed change device is defeated Go out gear H3 → jackshaft tooth sector K5 → steering spindle driven gear K20, then power is divided into two,
1 tunnel:Steering spindle left side gear K22 → left gear ring G39 → left planet carrier shaft G45 → left planet carrier shaft driving gear G43;
2 tunnels:Steering spindle right side gear K9 → right turn idle pulley gear K15 → right gear ring G6 → right planet carrier shaft G1 → left lateral Carrier axle driving gear G3.
Ratio steering principle
As described in steering power transfer route, it is that steering spindle left side gear K22 drives left gear ring G39 that left side, which turns to, and right It is steering spindle right side gear K9 driving right turn idle pulley gear K15 that side, which turns to, then drives right gear ring G6 to turn to, hydrostatic stepless Speed change gear H is rotated forward, and shaft transmission gear F5 is rotated among hydrostatic stepless speed change device output gear H3 drivings, jackshaft Travelling gear F5 driving jackshafts F4 is rotated, and jackshaft F4 driving steering intermediate shaft gears K5 is rotated, steering intermediate shaft gear K5 Steering spindle driven gear K20 is driven to rotate, steering spindle driven gear K20 driving steering spindles K21 is rotated, and steering spindle K21 drivings turn Rotated to axle left side gear K22 and steering spindle right side gear K9, steering spindle left side gear K22 drives left gear ring G39 to rotate, and turns to Axle right side gear K9 driving right turn idle pulley gears K15 is rotated, and right turn idle pulley gear K15 drives right gear ring G6 to rotate;Due to Steering spindle left side gear K22 drives left gear ring G39 to rotate, and steering spindle right side gear K9 is driven by right turn idle pulley gear K15 Dynamic right gear ring G6 is rotated so that left and right sides gear ring constant speed opposite direction rotates, and both sides gear ring is diverted mechanism lock during straight-line travelling Only, because hydrostatic stepless speed change device H drives, the dynamic balance of both sides gear ring is destroyed, both sides gear ring is in hydrostatic stepless change Constant speed reversely rotates in the presence of speed variator H, after this rotary speed synthesizes with sun gear input speed so that left planet carrier shaft G45 and right planet carrier shaft G1 exports unequal rotating speed, so as to promote driving wheel both ends to export different rotating speeds, and then realizes to side Turn to;Similarly, when hydrostatic stepless speed change device H is rotated backward, crawler equipment turns to opposite side;Turn to the angle speed of output Degree and hydrostatic stepless speed change device H output speed proportion relations, hydrostatic stepless speed change device H can by steering wheel or Steering linkage operates, therefore turns to the angular speed of output and hydrostatic stepless speed change device H speed governing amplitude proportion relation, from And realize accurate ratio and turn to.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (6)

1. a kind of crawler-type harvester ratio steering-type speed changer, including clutch assembly, speed changing assembly, steering power transmission Assembly, Athey wheel drive assembly and casing assembly, it is characterised in that speed changing assembly is installed, steering power passes in casing assembly Dynamic assembly and Athey wheel drive assembly, clutch assembly are connected with speed changing assembly, and speed changing assembly connects with steering power drive assembly Connect, steering power drive assembly is connected with Athey wheel drive assembly, and each mechanism concrete structure is as follows:
Casing assembly includes casing;
Speed changing assembly includes gear, intermediate transmission mechanism, planetary gear mechanism and reverse gear mechanism;
In gear, clutch is arranged on casing, and transmission input shaft both ends are separately mounted on casing, speed changer input 1 gear-the driving gear that reverses gear, 2 gear driving gears and 3 gear driving gears are set with axle successively, and in 2 gear driving gears and 3 gears 2-3 gear splined hubs are provided with transmission input shaft between driving gear, 2-3 gear splined hubs pass through flower with transmission input shaft Key coordinates installation, and 2-3 gear combined covers are provided with 2-3 gear splined hubs, and 2-3 keeps off shift fork and is set in 2-3 gear flowers by spline slide On key hub, transmission input shaft inputs axis connection by spline and hydrostatic stepless speed change device and coordinates passing power;Second axle Both ends are separately mounted on casing, and the driving gear 1 gear driven gear engaged, the driven gear that reverses gear are kept off-reversed gear with 1, is led with 2 gears 2 gear driven gears of moving gear engagement, the 3 gear driven gears engaged with 3 gear driving gears are sleeved on the second axle successively, 1 1 gear-splined hub of reversing gear is provided with the second axle between gear driven gear and the driven gear that reverses gear, and 1 keeps off-reverses gear and pacifies in splined hub Combined cover is kept off-reverses gear equipped with 1,1 gear-back fork is inserted into 1 gear-reverses gear in splined hub;
In intermediate transmission mechanism, jackshaft both ends are separately mounted on casing, the jackshaft driving cog engaged with 2 gear driven gears Wheel is sleeved on jackshaft;
In planetary gear mechanism, left planet carrier shaft is set with the inside of sun wheel shaft one end, outside is machined with left sun gear simultaneously Left gear ring support frame is stretched out in left outside end cap by flange bearing, right lateral carrier is set with the inside of the sun wheel shaft other end Axle, outside is machined with right sun gear and stretches out right gear ring support frame in right outer end cap by flange bearing, with jackshaft The sun wheel shaft driven gear of travelling gear engagement is sleeved in sun wheel shaft;Left planet carrier shaft one end is provided with left planet carrier shaft Driving gear, the other end are provided with the left lateral star-wheel engaged with left sun gear, and left lateral star-wheel is installed by left lateral star-wheel supporting pin On left lateral carrier support, the left lateral for supporting left lateral star-wheel to surround the rotation of left lateral star-wheel supporting pin is provided with left lateral star-wheel Star-wheel axle sleeve, while back-up ring is provided with left planet carrier shaft driving gear side, opposite side are provided with snap ring, left gear ring internal tooth with Left lateral star-wheel engaged transmission, left gear ring side are arranged on left inside end cap, and opposite side is fastened on left gear ring support frame, left inside end Lid, left outside end cap are separately mounted on casing;Right planet carrier shaft one end is provided with right planet carrier shaft driving gear, and the other end is set There is the right lateral star-wheel engaged with right sun gear, right lateral star-wheel is arranged on right lateral carrier support by planetary gear supporting pin, right lateral The right lateral star-wheel axle sleeve that the rotation of right lateral star-wheel supporting pin is surrounded for supports right planetary gear is provided with star-wheel, while in right lateral star Frame axle driving gear side is provided with back-up ring, and opposite side is provided with snap ring, right gear ring internal tooth and right lateral star-wheel engaged transmission, right tooth Circle external tooth engages with right turn idle pulley gear;Right gear ring side is arranged in right inner end cap, and opposite side is fastened on right gear ring support On frame, right inner end cap, right outer end cap are separately mounted on casing;
In reverse gear mechanism, reverse gear shaft both ends are separately mounted on casing, the idler gear that reverses gear engaged with the driven gear that reverses gear Wheel is arranged on reverse gear shaft;
Steering power drive assembly includes hydrostatic stepless speed change device and steering gear;Hydrostatic stepless speed change device is tight Guan County is provided with hydrostatic stepless speed change device input shaft and hydrostatic nothing on casing on hydrostatic stepless speed change device Level transmission output shaft, the hydrostatic stepless speed change device output gear engaged with jackshaft tooth sector is sleeved on hydrostatic On stepless speed change device output shaft, hydrostatic stepless speed change device, hydrostatic are driven by hydrostatic stepless speed change device input shaft Pressure stepless speed change device output shaft is used to drive steering gear;
In steering gear, steering intermediate shaft both ends are separately mounted on casing, with hydrostatic stepless speed change device output gear The steering intermediate shaft gear set of engagement is taken turns on steering intermediate shaft;Steering spindle one end is arranged in steering spindle upper end cover, another End is set with steering spindle right side gear through flange bearing, and flange bearing is arranged on casing, spatially engaged with left gear ring Steering spindle left side gear, the steering spindle driven gear that is engaged with steering intermediate shaft gear is sleeved in steering spindle successively;Turn right It is arranged on to idle pulley gear one end by flange bearing on casing, the other end is arranged in steering spindle bottom end cover, steering spindle upper end Lid, steering spindle bottom end cover are arranged on casing, and right turn idle pulley gear engages with steering spindle right side gear;
In Athey wheel drive assembly, left track sprocket shaft one end is arranged on casing and stretches out casing, and the other end is arranged on case On body and stretch out outside the driving upper end cover being arranged on casing, driving upper end cover is arranged on casing, left track sprocket shaft flower Left track sprocket shaft driven gear is set with key;Right-hand track chiain live axle one end is arranged on casing and stretches out casing, separately One end is arranged on casing and stretched out outside the driving bottom end cover being arranged on casing, and right-hand track chiain live axle driven gear is sleeved on On right-hand track chiain live axle;
When crawler-type harvester carries out linear drives, power is transferred to sun wheel shaft by sun wheel shaft driven gear, then power It is divided into two, is transferred to left sun gear and right sun gear respectively, wherein, left sun wheel drive left lateral star-wheel rotation, due to left tooth Circle is diverted power locking equal in magnitude, in opposite direction in the steering spindle of transmission mechanism, and left gear ring can not rotate, left planet carrier shaft By left sun wheel drive, power is transferred to left planet carrier shaft, then is transferred to left planet carrier shaft driving gear;Similarly, right sun gear Drive right planet carrier shaft to rotate, and then drive right planet carrier shaft driving gear, due to when being inputted without steering power, left gear ring with Right gear ring is locked out, the output of both sides power at constant speed, crawler-type harvester straight-line travelling;
When crawler-type harvester needs to turn to, hydrostatic stepless speed change device rotates forward, hydrostatic stepless speed change device output Shaft transmission gear rotates among gear driving, and middle shaft transmission gear driving jackshaft rotates, jackshaft driving steering intermediate shaft Pinion rotation, steering intermediate shaft gear driving steering spindle driven gear rotate, and steering spindle driven gear driving steering axes, turn Steering spindle left side gear and steering spindle right side gear is driven to rotate to axle, steering spindle left side gear drives left ring gear against rotation, turns to Axle right side gear drives right turn idle pulley pinion rotation, the right ring gear against rotation of right turn idler gear wheel drive;Due on the left of steering spindle Gear drives left ring gear against rotation, and steering spindle right side gear passes through the right ring gear against rotation of right turn idler gear wheel drive so that left and right The rotation of both sides gear ring constant speed opposite directions, both sides gear ring is diverted mechanism locking during straight-line travelling, because hydrostatic variable speed fills Driving is put, destroys the dynamic balance of both sides gear ring, gear ring constant speed in the presence of hydrostatic stepless speed change device in both sides is reversely revolved Turn, after this rotary speed synthesizes with sun gear input speed so that left planet carrier shaft exports unequal turn with right planet carrier shaft Speed, so as to promote driving wheel both ends to export different rotating speeds, and then realize and turned to side;Similarly, when hydrostatic variable speed fills Put when rotating backward, crawler equipment turns to opposite side.
A kind of 2. crawler-type harvester according to claim 1 ratio steering-type speed changer, it is characterised in that 2 gear masters Moving gear is by 2 gear driving gear axle sleeve empty sets on transmission input shaft.
A kind of 3. crawler-type harvester according to claim 1 ratio steering-type speed changer, it is characterised in that 3 gear masters Moving gear is by 3 gear driving gear axle sleeve empty sets on transmission input shaft.
A kind of 4. crawler-type harvester according to claim 1 ratio steering-type speed changer, it is characterised in that 1 gear from For moving gear by 1 gear driven gear axle sleeve empty set on the second axle, the driven gear that reverses gear passes through driven gear axle sleeve empty set of reversing gear On the second axle.
A kind of 5. crawler-type harvester according to claim 1 ratio steering-type speed changer, it is characterised in that jackshaft Travelling gear side is provided with snap ring.
A kind of 6. crawler-type harvester according to claim 1 ratio steering-type speed changer, it is characterised in that right lateral star Frame axle is arranged on sun wheel shaft one end by right needle bearing, and left planet carrier shaft is another installed in sun wheel shaft by the needle bearing that rolls left One end.
CN201710080540.9A 2017-02-15 2017-02-15 A kind of crawler-type harvester ratio steering-type speed changer Expired - Fee Related CN106594221B (en)

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