CN100520122C - Implanting machine in paddy field - Google Patents

Implanting machine in paddy field Download PDF

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Publication number
CN100520122C
CN100520122C CN 200610100213 CN200610100213A CN100520122C CN 100520122 C CN100520122 C CN 100520122C CN 200610100213 CN200610100213 CN 200610100213 CN 200610100213 A CN200610100213 A CN 200610100213A CN 100520122 C CN100520122 C CN 100520122C
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CN
China
Prior art keywords
gearbox
oil pressure
transmission case
aforementioned
clutch
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Expired - Lifetime
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CN 200610100213
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Chinese (zh)
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CN1955518A (en
Inventor
洼津诚
山下真
小谷伸介
松木直树
清水孝式
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Kubota Corp
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Kubota Corp
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Publication of CN1955518A publication Critical patent/CN1955518A/en
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Publication of CN100520122C publication Critical patent/CN100520122C/en
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  • Power Steering Mechanism (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

An implanting machine in paddy field comprises a transmission case(9)axle supporting a front wheel(1)through a front axle box(8), and a implanting device(4)in paddy field is synchronously connected at the rear part of the proper motion body(3)embarking the engine(11)in front of the transmission case(9). Wherein, a static oil pressure type stepless speed change device(41)is arranged at a side surface in landscape orientation of the transmission case(9). The static oil pressure type stepless speed change device(41)transfers the power received from the engine(11)to the transmission case(9)through the output shaft(41b)of the static oil pressure type stepless speed change device(41).

Description

Working in paddy field
The application be that September 30, application number in 1999 are 99120855.2 the applying date, denomination of invention divides an application for the Chinese patent application of " working in paddy field ".
Technical field
The present invention relates to a kind of working in paddy field such as transplanter that clutch, static oil pressure endless gearing device and gearbox are arranged, particularly relate to the simple technology of good operability simultaneously of a kind of its body Structure.
Background technique
It is disclosed that the transmission device of working in paddy field in the past such as spy leave flat 10~No. 54461 communiques, be provided with the clutch of connection and disconnection engine power and accept the static oil pressure endless gearing device that this clutch is exported, the output of this static oil pressure endless gearing device is transmitted in gearbox casing.
But, in above-mentioned conventional art, because the front portion of static oil pressure endless gearing device is provided with clutch, when clutch is the wet multi-plate formula clutch of good endurance, need the clutch casing of gearbox interior dress clutch in addition, caused the rising of the complicated and cost of structure.Therefore, all used dry clutch in the past.
Summary of the invention
The purpose of this invention is to provide a kind of clutch that can not cause the wet multi-plate formula of complex structureization and cost rising.
To achieve these goals, the invention provides a kind of working in paddy field, have the gearbox by front truck axle box axle supporting front-wheel, simultaneously, the rear portion of carrying the body voluntarily of motor in the place ahead of described gearbox is connected with the paddy-field-working device; It is characterized in that, on a horizontal side of described gearbox, be provided with static oil pressure endless gearing device, the power that this static pressure type stepless speed changes devices will be accepted from described motor transmits to described gearbox by the output shaft of this static oil pressure endless gearing device.
According to the present invention, the sequence delivery power owing to static oil pressure endless gearing device, gearbox casing, clutch can be arranged at clutch in the gearbox.Therefore, in can the useful life longevity good wet multi-plate formula clutch of clutch, do not need independent clutch box beyond the gearbox.
Thereby, make that under not needing structure such as clutch box simple structure and cost descend in, can use wet multi-plate formula clutch to improve durability.
According to the present invention, can guarantee the lubricants capacity abundance, suppress the oil temperature and rise, also help the simplification of seal construction and the reduction of cost.
In the past, lubricant oil is stored in the inside of gearbox and connected front truck axle box, specifically, for example under embodiment's situation described later, the front truck axle box is by being provided with, supporting the pairing left and right longitudinal shaft transmission case portion of front-wheel to constitute with the lower end to the foreign side outstanding horizontal transmission case of pairing left and right portion and extension thereunder sidelong from gearbox, when rotating part was formed at the upper and lower neutral position of longitudinal shaft transmission case portion, lubricant oil was stored in the main body portion of the horizontal transmission case portion of all gearboxes, front truck axle box and longitudinal shaft transmission case portion.
To this, in the present invention, the front truck axle box is divided into transmission front part and transmission rear section by turning to rotating part, and the transmission front part is stored lubricant oil, and the driving mechanism part of transmission front part is stored lubricant oil by these and is lubricated.On the other hand, in the transmission rear section, owing to do not store lubricant oil, the driving mechanism part of transmission rear section is lubricated by the lubricated wet goods mode of stiff.Therefore,, between transmission front part and transmission rear section, use simple sealing and fixing to get final product, need not complicated sealing at rotating part as sealing.
Thereby, can use the part of transmission front side in gearbox and the front truck axle box to store the lubricant oil of q.s, and the sealing configuration that prevents oil leak is constituted simple and economicly.
According to the present invention, can suppress the increase of body front and back length and the increase of body weight to greatest extent, help the balance of body front and back voluntarily.
According to this structure, the gearbox that oil pressure endless gearing device is installed can be used as the effect effectively of front-wheel load as the weight object.
And,, can closely be provided with gearbox so be arranged at the operation platform of the top of gearbox owing on the horizontal side of gearbox, be connected with static oil pressure endless gearing device.
In addition, when on the horizontal side of gearbox, connecting static oil pressure endless gearing mechanism, because static oil pressure endless gearing device is arranged at the top of the lateral rotation case portion of front truck axle box with the state that enters from the place ahead, horizontal transmission case portion is not formed interference, static oil pressure endless gearing device rearward can be provided with as far as possible.Like this, can reduce quiet oil pressure stepless speed changes devices from gearbox overhang forwards, in this state, can be arranged at gearbox the place ahead motor be that the rear is close to gear-box side.
Thereby, can reduce the increase of body front and back length and the increase of body weight, keep the anterior-posterior balance of body voluntarily, and can reduce the setting of operation platform, in addition, rearward be provided with, can further suppress the increase of body front and back length because motor can be tried one's best.
According to the present invention, help the compactness of oil pressure power-assisted with torquer.
In the past, by making the pestle of the swing output shaft of torquer is smash (beater) motion converter for around the axis revolution and can center on longitudinal shaft to middle the transmission part of vertical turning axle transmission (aforementioned relatively swing output shaft freely swing carry-over moment) and be installed on the torquer freely to rotate, along with torquer is installed in the gearbox, middle transmission part and vertical turning axle make vertical turning axle be connected linkedly with torquer with the coaxial position interlock.But because middle transmission part is installed on the torquer, under this state, torquer is strengthened by gearbox overhang upward.For example, generally perpendicularly be provided with at the input shaft of torquer end face with respect to gearbox, when the steering shaft that is provided with sweptback attitude is passed through the universal shaft coupling interlock with aforementioned input shaft, owing to torquer overhang upward make greatly input shaft and steering wheel between the upper and lower every diminishing, input shaft and steering shaft by the universal shaft coupling interlock form bigger bending, and steering force is the steering operation reduction to the fairness of input shaft transmission.
To this, in the present invention, be installed under the state on the torquer at middle shaft coupling parts (being equivalent to above-mentioned middle transmission part), the torquer compactness can be made, and overhang can be reduced to the speed changer top.
Thereby, can strengthen the gap up and down of steering wheel and input shaft, steering operation is carried out smoothly.
Other features of the present invention, effect and effect will be illustrated in the most preferred embodiment of the present invention with reference to accompanying drawing below.
Description of drawings
Fig. 1 is working in paddy field one an embodiment's of the present invention unitary side view.
Fig. 2 is working in paddy field one an embodiment's of the present invention whole plan view.
Fig. 3 is the side view of working in paddy field one embodiment's major component of the present invention.
Fig. 4 is the plan view of working in paddy field one embodiment's major component of the present invention.
Fig. 5 is the plan view of working in paddy field one embodiment's major component of the present invention.
Fig. 6 is the vertical profile rear view of gearbox casing.
Fig. 7 is the cross-sectional plan view of gearbox casing major component.
Fig. 8 cuts open side view for the office of the steering gear major component.
Fig. 9 is the longitudinal sectional drawing of expression clutch coupled situation and off state.
Figure 10 is the vertical profile rear view of front truck axle box.
Figure 11 is pressurized oil system figure.
Figure 12 is the partial cutaway plan view of the steering gear major component.
Embodiment
The accompanying drawing that following reference shows as the transplanter of working in paddy field one example describes embodiments of the invention.
This transplanter as shown in Figure 1 and Figure 2, has the pairing left and right traveling with driving ride-type that front-wheel (being equivalent to front-wheel) 1 and pairing left and right drive trailing wheel (being equivalent to trailing wheel) 2 rear portion of body 3 voluntarily, but by quadratic crank mechanism 5 free liftings be connected with plant feed unit 4 as the multiple row planting formula of paddy-field-working device one example, also be provided with the elevating oil cylinder 6 and the fertilizer apparatus 7 that utilize this plant feed unit 4 of oil cylinder lifting.
Body 3 as shown in Figure 3, Figure 4 voluntarily, has the gearbox 9 that drives front-wheel 1 by 8 supportings of front truck axle box, simultaneously, in the body framework of aforementioned driving trailing wheel 2 by 10 supportings of rear axle shaft case, the shock absorbing material of motor 11 by vibration-proof rubber 12 grades is equipped on transverse state near the place ahead of aforementioned gearbox 9, simultaneously, take advantage of an operation portion 13 to carry with the state that is positioned at aforementioned motor 11 rears.
The aforementioned steering wheel 14 that an operation portion 13 has the aforementioned driving front-wheel 1 of operation, the seat 15 that is positioned at its rear, the operation platform S etc. of taking advantage of.Operation platform S is arranged at than aforementioned gearbox 9 more on the horizontal plane of top.
Aforementioned plant feed unit 4 has known essential structure.The stroke that promptly is provided with the left and right directions set comes and goes the seedling platform 16 that drives, the mobile phase interlock of seedling platform 16 therewith, do action and make the rice shoot of Miao Taishang take out a plurality of growing bodies about 17 of implanting the rice seedling bed to be provided with up and down between rice shoot conveying end and rice seedling bed to plant capable interval with a part of ground of plantation amount.By follow traveling slipping on the face of rice seedling bed a plurality of ground connection transplanter buoyancy aids 18 on whole ground on the face of rice seedling bed about respectively to be provided with at interval.
Aforementioned fertilizer apparatus 7 is being equipped with fertilizer hopper 19 on the body 3 voluntarily, and be provided with the fertilizer in this fertilizer hopper 19 and rice transplanting action mutually the releasing device 20 that discharges with set amount of a part of interlock, be accompanied by traveling in the rice seedling bed, forms fertilising with in the ditch fertilizer of sending is supplied in the ditch doing ditch device 21 and generation the fertilizer of release by the electric fan 23 of flexible pipe 22 to the air-flow of making ditch device 21 force feeds.
Aforementioned axle box 8 is anchored on the gearbox 9, and rear axle shaft case 10 can be bearing on the body framework by free rough ground around sagittal axle core.Like this, front truck axle box 8 as shown in Figure 5, by laterally the outstanding horizontal transmission case 8A of portion of foreign side and vertical transmission case 8B of portion of being connected this horizontal transmission case portion 8A outer end constitute to the left and right from gearbox 9 bottoms, vertically the lower end of the 8B of transmission case portion is supported with and drives front-wheel 1, is provided with static oil pressure endless gearing device 41 with the state that enters from the place ahead above the aforementioned lateral transmission case 8A of portion.
Aforementioned in addition static oil pressure endless gearing device 41 is arranged at the secund position of the left and right sides center C central authorities of driving front-wheel 1 (about) of relative proper motion body 3, the state setting that gearbox 9 enters with the opposite side by the center C about aforementioned.
Like this, as Fig. 3~shown in Figure 5, have the output shaft 11a horizontal input shaft 41a of interlock mutually by flexible gearing 40 and aforementioned motor 11, and with the lubricant oil in the gearbox 9 as the static oil pressure endless gearing device 41 of advance and retreat before and after can freely the switching of action oil with its output by lateral shaft to the input shaft 57 of gearbox 9 transmit simultaneously become with horizontal output shaft 41b with its input shaft 41a the state of front and back setting be connected gearbox 9 horizontal (about) a side on.The output shaft 41b of static oil pressure endless gearing device 41 is being connected (with reference to Fig. 6) with the input shaft 57 of gearbox 9 linkedly by coupling 56.
The structure of aforementioned flexible gearing 40 is for being wound with drivign belt 40c at the output belt pulley 40a that is contained on the output shaft 11a with being contained on the input belt pulley 40b on the input shaft 41a, and is provided with the Idle wheel 40d that this belt 40c is applied tension force.
The front portion of the input shaft 41a of aforementioned static oil pressure endless gearing device 41 by gearbox 9 to laterally (about) opposite side stretch out.
In addition, aforementioned gearbox 9 laterally (about) the another side on, as Fig. 4, shown in Figure 5, be connected with the oil pressure pump 42 that the extension by the input shaft 41a of aforementioned quiet oil pressure stepless speed changes devices 41 drives, on the end face of gearbox 9, as Fig. 3~shown in Figure 5, be equipped with the steering wheel shaft 14a of aforementioned steering wheel 14 mutually the oil pressure power steering of interlock with torquer 43 and the apparatus for work descending operation of controlling aforementioned hoist cylinder 6 with pressure control valve 44.
Below describe pressurized oil system in detail, as shown in figure 11, aforementioned gearbox 9 is as the action oil tank, the oil purifier 45 (example of withdrawing device) that action oil (lubricant oil) in the gearbox 9 is taken out is installed on the horizontal another side of gearbox 9, from then on oil purifier 45 is supplied with the action oil in the gearbox 9 to static oil pressure endless gearing device 41 and oil pressure pump 42, by oil pressure pump 42 pressure oil is supplied with to torquer 43, after this, supply with hoist cylinder 6 by pressure control valve 44, by the pipeline 47 of drawing from static oil pressure endless gearing device 41 will discharge oil send back to return openings 46 in the gearbox 9 be formed at be positioned at about on the horizontal 8A of transmission case portion of a side front truck axle box 8, send back to (simultaneously with reference to Fig. 6) among the horizontal 8A of transmission case portion with discharging oil, the discharge oil of pressure control valve 44 when hoist cylinder 6 stops to move is turned back in the gearbox 9.
Thereby, lubricant oil is according to the sequential loop of the horizontal 8A of transmission case portion of static oil pressure endless gearing device 41, front truck axle box 8, gearbox 9, oil purifier 45, static oil pressure endless gearing device 41, by the horizontal 8A of transmission case portion when gearbox 9 flows, mainly be to carry out heat release and cool off at the horizontal 8A of transmission case portion.
L1 is the speed change lever of the aforementioned static oil pressure endless gearing device 41 of operation, L2 is the operating stem of the aforementioned gear 51 of operation, P1 is for reversibly carrying out the clutch pedal that the disconnection of aforementioned clutch 50 is moved by trampling moving operation, and P2 is for moving the differential synchronizer pedal that operation reversibly switches to aforementioned box of tricks 52 non-action status by trampling.
In aforementioned gearbox 9, as Fig. 6, Fig. 7 and shown in Figure 8, constituting component as the traveling transmission system mainly is provided with the output connection of aforementioned static oil pressure endless gearing device 41 and the clutch 50 that disconnects, with the output variable speed of this clutch 50 is the gears 51 of height two retainings, the box of tricks 52 that the output of this gear 51 driving front-wheel 1 about aforementioned is transmitted.In addition, the folk prescription that also is provided with transmission system (transmission system of the planting) constituting component as plant feed unit 4 changes the gear of planting (being equivalent to gear between strain) 54 and the clutch 55 of planting that the strain spacing is used to clutch 53.
Aforementioned clutch 50 is the clutch of wet multi-plate formula, shown in Fig. 9 (A), (B), on input shaft 57, be equipped with the one revolution and the state of on shaft core direction, locating and drive external member 58 by spline shaft type coupling 56 and the output shaft 41b interlock of aforementioned static oil pressure endless gearing device 41.Can freely turning round with respect to aforementioned input shaft 57 and can be on the clutch output shaft 59 of the tubular that the state of the free displacement of shaft core direction is installed, turn round and the state of locating on shaft core direction is equipped with driven external member 60 with one.The displacement of following clutch output shaft 59 with respect to driving external member 58 the moving of shaft core direction, makes both at the interlock state of interlock with remove the friction board 61 that freely switches between the relieving state of interlock and be installed on across on driven external member 60 and the driving external member 58 by driven external member 60.Simultaneously, be provided with the spring 62 that driven external member 60 is applied elastic force to the interlock state.By this structure, by making friction board 61 constitute the coupled condition of clutch for the interlock state, on the contrary, by making friction board 61 constitute the clutch off state for relieving state.
Like this, because the end face that is provided with by push clutch output shaft 59 around the revolution perpendicular to the axle core P of input shaft 57 comes the displacement operation cam 63 (examples of displacement operation parts) of the elastic force of antagonistic spring 62, the disconnection of formation, connect the structure of power.Promptly push output shaft 59 by displacement operation cam 63, constitute the off state of clutch, by removing the pushing of 63 pairs of clutch output shafts 59 of operation of cam, clutch output shaft 59 is moved by the power of spring 62 and constitutes the coupled condition of clutch.On the other hand, by the friction between displacement operation cam 63 and the clutch output shaft 59, can when disconnecting, clutch prevent that output shaft 59 and input shaft 57 from turning round the corotation of promptly so-called clutch output shaft 59 simultaneously.
Therefore, clutch output shaft 59 is ended by displacement component 63 card, the corotation of (during power cut) clutch output shaft 59 when the structure that disconnects, connects power with the displacement of shaft core direction can be ended (friction) with the card of the displacement component 63 of clutch output shaft 59 and prevented the clutch disconnection.Thereby, though be the clutch of wet multi-plate formula, need not to be provided with the special structure that prevents the clutch output shaft corotation, can realize the reliable disconnection of power simply, economically.
In addition, as mentioned above, the clutch 50 of wet multi-plate formula is set in gearbox 9,, does not need gearbox 9 clutch box in addition though clutch is the wet multi-plate formula clutch than dry clutch good endurance.Its another advantage of bringing is, clutch or clutch box can not be present in the turning track of front-wheel 1 and interfere and turn to, and can guarantee the steering angle (turning to the space) of front-wheel preferably.
Aforementioned gear 51 is the gear displacement type, on speed change input shaft 64, with while one revolution and state the major diameter speed change gear 65 of high speed usefulness and the minor diameter speed change gear 66 that low speed is used are installed in the shaft core direction location, on speed change output shaft 67, with the rotating state of one displacement gear 70 is installed, this displacement gear can free displacement on the low-speed position that high speed position that small diameter gear portion 68 and major diameter speed change gear 65 are engaged and linked and gear wheel in large diameter portion 69 and minor diameter speed change gear 66 are engaged and linked.
And, on aforementioned clutch output shaft 59, be equipped with aforementioned major diameter speed change gear 65 with the one turn state and be engaged and linked the minor diameter output gear 71 of deceleration transferring power, speed change input shaft 64 and clutch output shaft 59 deceleration interlocks.
Aforementioned box of tricks 52 can freely switch to the operating state of differential and will drive the horizontal transmission shaft 72 common non-action status that directly connect, do not carry out differential of front-wheel 1 to the left and right.That is, on a side horizontal transmission shaft 72, displacement component 74 is installed with the rotating state of one, this displacement component can on the shaft core direction freely and the operating position that is engaged and linked of the non-operating position that is engaged and linked of differential body 73 and releasing between free displacement.Be moved to non-operating position by this displacement component 74, laterally transmission shaft 72 is integrated with differential body 73, constitutes aforementioned non-action status, on the contrary, be moved to operating position by displacement component 74, allow horizontal transmission shaft 72 and the 73 relative revolutions of differential body, constitute the aforementioned activities state.
And, the input gear (being equivalent to differential input gear) 76 of the interlock that is meshed with speed change output gear (being equivalent to the traveling output gear) 75 is installed on the differential body 73 of this box of tricks 52, and the be meshed input gear (being equivalent to differential input gear) 76 of interlock of the output gear (the outlet side gear that is equivalent to gear train) 79 of the interlock that is meshed with gear (input side gear that is equivalent to gear train) 78 on the transmission shaft 77 that is installed on aforementioned driving trailing wheel 2, gear 75 is to be installed on this axle 67 with the rotating state of aforementioned speed change output shaft 67 one.
Aforementioned folk prescription makes aforementioned speed change input shaft 64 as the point of branching that is transmitted to the transmission system of planting by the traveling rotation system to clutch 53, and it is turned round advancing in the revolution of speed change input shaft 64 to the transmission system transmission of planting.
In the aforementioned gear 54 of planting, only relatively be installed on pivotally on the speed change output shaft 67 and by gear 81 and aforementioned folk prescription to the output gear of clutch 53 (be equivalent to plant use output gear) 80 mutually the tubular of interlock plant on the speed change input shaft 82, a plurality of actuation gears (being equivalent to actuation gear is listed as) 83 of diameter inequality are installed with the rotating state of one.On the speed change output shaft 86 of planting, the driven gear (being equivalent to the driven gear row) 87 that often is engaged and linked respectively with aforementioned actuation gear 83 is installed freely to rotate relatively by the bevel gear 84,85 and clutch 55 interlocks of planting.To be equipped with by engage reversibly transmission ball 89 with the driven gear 87 and speed change output shaft 86 interlocks of planting with the engaging recessed part 88 that forms respectively on the driven gear 87 with the rotating state of speed change output shaft 86 one of planting.And, be provided with the service axis 90 that transmission ball 89 is engaged with engaging recessed part 88 with selecting a property.By this structure, because driven gear 87 is selected property ground and planted speed change output shaft 86 interlocks, speed change is carried out in the actuation gear 83 that change is used in transmission and the combination of driven gear 87.
The longitudinal drive shaft that aforementioned lateral transmission shaft 72 is housed in aforementioned front truck axle box 8 and its power is transmitted to the front axle 33 that drives front-wheel 1, in rear axle shaft case 10, in the driving mechanism that the power that gearbox 9 transmitted by transmission shaft 77 transmits to the rear axle shaft that drives trailing wheel 2 is housed.
In the horizontal transmission case 8A of aforementioned front truck axle box 8, as Fig. 6, Figure 10 as showing, in be equipped with and the aforementioned box of tricks 54 horizontal transmission shaft 72 of the outer direction sidelong of interlock mutually.In vertical transmission case 8B of portion of aforementioned front truck axle box 8, as shown in figure 10, in the upper end is housed by umbrella gear 31a, 31b the time with horizontal transmission shaft 72 interlocks, the lower end is by the longitudinal drive shaft 34 of front axle 33 interlocks of umbrella gear 32a, 32b and driving front-wheel 1, in addition, vertically the 8B of transmission case portion by with transverse axis transmission unit 8A a upper tank body 8C that forms one and a core that can freely center on longitudinal drive shaft 34 pivotally therewith the lower tank body 8D that is connected of upper box body 8C form.Promptly drive front-wheel 1 and carry out steering operation by the revolution of lower tank body 8D, the joint of its upper box body 8C and lower part box 8D becomes the rotating part 8E that turns to usefulness.
Moreover, between the inboard and horizontal slightly transmission shaft 72 of supporting portion by horizontal transmission shaft 72 outboard end of bearing 36 supportings in the aforementioned lateral transmission case 8A of portion the sealing gasket 37 that prevents that lubricant oil from being leaked to longitudinal axis transmission unit 8B by the horizontal transmission case 8A of portion is installed.Like this, constitute the lubricant oil reservoir by the gearbox 9 that constitutes part more anterior in the transmission system and the transverse axis transmission unit 8A of front truck axle box 8, come aforementioned clutch 50, gear 51, box of tricks 52, planting mechanism 54 are lubricated with lubricant oil than aforementioned rotating part 8E.On the other hand, lubricated in the longitudinal axis transmission unit 8B of front truck axle box 8 is promptly for the engaging piece of the engaging piece of umbrella gear 31a, 31b, umbrella gear 32a, 32b, rotating part 8E, carried out with stiff lubricant oil by the lubricated of each bearing 35 of the vertical transmission case 8B of portion supporting longitudinal drive shaft 34.
The steering gear is connected with the torquer 43 that power steering is used by Fig. 3~Fig. 5, Fig. 8 and shown in Figure 12 on the end face front portion of aforementioned gearbox 9, its input shaft 43a is the state of approximate vertical with respect to gearbox 9 end faces.The input shaft 43a of this torquer 43 and be connected by universal shaft coupling 91 with revolution of aforementioned steering wheel 14 one and sweptback steering wheel shaft 14a, the link arm 92 that is connected with aforementioned torquer 43 and swings around longitudinal axis core Q is installed on the lower position of gearbox, is provided with the steering linkages 94 that this link arm 92 and each steering knuckle arm 93 that drives front-wheel 1 are connected.
The apparatus structure that aforementioned torquer 43 and link arm 92 are connected is: be provided with vertical turning axle 95 to be connected with connecting rod arm axle 92a coaxial state and torquer 43, and with steering force thus vertically turning axle 95 to the slow down reduction gearing mechanism 96 of transmission of connecting rod arm axle 92a.
Aforementioned reduction gearing mechanism 96 is a reduction gears mechanism, its structure is, intermediate propeller shaft 97 with the state that is arranged at connecting rod arm axle 92a and is close to side by in the gearbox 9 up and down the bearing 98 at two ends can be installed with freely to rotate, on vertical turning axle 95, form the 1st driving gear G1 of minor diameter, on aforementioned intermediate propeller shaft 97, large diameter the 1st driven gear g1 that is engaged and linked with the 1st driving gear G1 is installed with the rotating state of one, simultaneously, also be formed with the 2nd driving gear G2 of minor diameter, on connecting rod arm axle 92a, large diameter the 2nd driven gear g2 that is engaged and linked with aforementioned the 2nd driving gear G2 is installed with the one turn state.Aforementioned the 1st driving gear G1, the 1st driven gear g1, the 2nd driving gear G2, the 2nd driven gear g2 are the little helical gear of backlash.
For vertical turning axle 95 is connected mutually with aforementioned torquer 43, middle shaft coupling parts 99 are freely to turn round around aforementioned longitudinal axis core Q, the top board state of up/down perforation gearbox 9 is supported on the boss 9a that forms on the gearbox 9 by lining 100 simultaneously, wherein, middle shaft coupling parts 99 have with respect to torquer 43 swing output shaft (output shaft one example) 43b with can freely swing and the linkage part 99a of the internal spline structure of the chimeric connection of state of carry-over moment with the upper end of vertical turning axle 95 carry-out part 99b with the chimeric internal spline structure that is connected of carry-over moment state.Linkage part 99a is can freely swing and chimeric connection of the state of carry-over moment and aforementioned swing output shaft 43b is by carrying out outside the band tooth of the external spline that forms swing output shaft 43b on the arc surface of oscillation center.Moreover, it is a revolution around axis that the pestle of the swing output shaft 43b of torquer 43 is smash motion converter, the middle transmission part that transmits to vertical turning axle 95 is made of the middle shaft coupling parts 99 of said structure, except making above-mentioned torquer compact structure, also have than constitute more economic advantage by universal shaft coupling.
But aforementioned connecting rod arm axle 92a passes through bearing 101 free rotaring ground supportings on gearbox 9 in upper end portion and intermediate portion up and down, vertically turning axle 95 upper end portions are chimeric is supported on the middle shaft coupling parts 99, simultaneously, the underpart is chimeric is supported on the connecting rod arm axle 92a.
In addition, aforementioned vertical turning axle 95 is seen from the side with in the input shaft 41a of aforementioned static oil pressure endless gearing device 41 and the state setting between the output shaft 41b.
In addition, in the above-described embodiments, connecting rod arm axle 92a is supported on the gearbox 9 by bearing 101, but also the end of vertical turning axle 95 can be supported on the gearbox 9 by bearing 101, and will implement on the chimeric end that is supported on this vertical turning axle 95, the end of connecting rod arm axle 92a.

Claims (3)

1. a working in paddy field has the gearbox (9) by front truck axle box (8) axle supporting front-wheel (1), and simultaneously, the rear portion of carrying the body voluntarily (3) of motor (11) in the place ahead of described gearbox (9) is connected with paddy-field-working device (4);
It is characterized in that,
Described front truck axle box (8) is by the horizontal outstanding horizontal transmission case portion (8A) of foreign side and be connected vertical transmission case portion (8B) formation that is supporting described front-wheel (1) of this horizontal transmission case portion outer end to the left and right from the bottom of described gearbox (9), top position in described horizontal transmission case portion (8A), on the horizontal side from described horizontal transmission case portion (8A) towards described gearbox (9), be provided with static oil pressure endless gearing device (41);
Described static oil pressure endless gearing device (41) is arranged at the secund position, center, the left and right sides (c) of described relatively body voluntarily (3), and described gearbox (9) is from center, the described left and right sides (c) deflection the opposing party's position;
The power that described static oil pressure endless gearing device (41) will be accepted from described motor (11) transmits to described gearbox (9) by the output shaft (41b) of this static oil pressure endless gearing device (41).
2. working in paddy field according to claim 1, it is characterized in that, the top front portion of described gearbox (9) is equipped with the oil pressure power steering with torquer (43), and simultaneously, the link arm (92) with described front-wheel (1) interlock is equipped with in the front portion below described gearbox (9);
Described torquer (43) links to each other by vertical turning axle (95) with described link arm (92), and described vertical turning axle (95) is positioned at the anterior position of the output shaft (41b) of described static oil pressure endless gearing device.
3. working in paddy field according to claim 1, it is characterized in that, the descending operation pressure control valve (44) of described paddy-field-working device (4) is installed above the described gearbox (9), and described gearbox (9) constitutes the action oil tank that is used for by the action oil of described pressure control valve (44).
CN 200610100213 1999-03-25 1999-09-30 Implanting machine in paddy field Expired - Lifetime CN100520122C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP80852/1999 1999-03-25
JP80851/1999 1999-03-25
JP08085199A JP3497407B2 (en) 1999-03-25 1999-03-25 Steering device of paddy working machine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CNB2005100040457A Division CN100337519C (en) 1999-03-25 1999-09-30 Implanting machine in paddy field

Publications (2)

Publication Number Publication Date
CN1955518A CN1955518A (en) 2007-05-02
CN100520122C true CN100520122C (en) 2009-07-29

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CN 200610100213 Expired - Lifetime CN100520122C (en) 1999-03-25 1999-09-30 Implanting machine in paddy field

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Cited By (1)

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CN106385895A (en) * 2015-07-30 2017-02-15 株式会社久保田 Paddy field work machine

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CN103109627B (en) * 2011-06-10 2016-08-03 大同农机(安徽)有限公司 Sulky rice transplanter
JP6160994B2 (en) * 2013-07-10 2017-07-12 株式会社 神崎高級工機製作所 Axle drive device for work vehicle
JP2017029037A (en) * 2015-07-30 2017-02-09 株式会社クボタ Paddy-field work machine
JP6465010B2 (en) * 2015-12-11 2019-02-06 井関農機株式会社 Work vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106385895A (en) * 2015-07-30 2017-02-15 株式会社久保田 Paddy field work machine
CN106385895B (en) * 2015-07-30 2021-06-01 株式会社久保田 Paddy field working machine

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JP2000270627A (en) 2000-10-03
JP3497407B2 (en) 2004-02-16
CN1955518A (en) 2007-05-02

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