CN1429157A

CN1429157A - Riding rice transplanter

Info

Publication number: CN1429157A
Application number: CN01809571A
Authority: CN
Inventors: 竹内修
Original assignee: Yanmar Agricultural Equipment Co Ltd
Current assignee: Yanmar Co Ltd
Priority date: 2001-03-15
Filing date: 2001-09-17
Publication date: 2003-07-09
Anticipated expiration: 2021-09-17
Also published as: WO2002074572A1; KR20020091272A; JP4782298B2; TWI236339B; CN100488797C; KR100799641B1; JP2002272217A

Abstract

A riding rice transplanter, wherein a crutch mechanism for a transmission case is provided that prevents the size of the body from enlarging, and is easy to attach/detach and improved in assembling performance at manufacturing and in maintainability at inspection; and wherein, in order to positively prevent seizure at friction portions such as a friction plate and a friction unit, an input shaft (56) is allowed to protrude from the opposite side surfaces of a transmission case (6), a speed change mechanism (13) is provided on one side of the input shaft (56) and between an engine (5) and the shaft and a crutch mechanism (14) is provided on the other side thereof, and an oil channel (163) allowing a crutch chamber (87) to communicate with the crutch mechanism (14) housed in the crutch chamber is provided in the wall surface (6b) of the transmission case (6).

Description

Sulky rice transplanter

Technical field

The present invention relates to Sulky rice transplanter, the installation of the detailed relevant clutch mechanism in mission case of saying so constitutes and lubricated formation.

Background technology

In transplanting rice seedlings machine in the past, as will be from the power speed changing of driving engine, clutch mechanism to the change-speed box of front-wheel and trailing wheel transferring power, be at the output shaft of aforementioned driving engine with between the input shaft of mission case, folder is established the outer clutch mechanism as the belt tension power-transfer clutch, perhaps with the input shaft in the mission case as duplex, at the bang path middle part internal clutch is set, carry out clutch from the power of driving engine.

And, make it the on-cycle lubricating oil in the mission case and carry out by being injected at the lubricated of the inner clutch mechanism that is provided with of aforementioned mission case.

But, the former outer clutch mechanism with the same side of the input side of input shaft in, owing to be that drive disk assembly as pulley rotates and constitutes always, so need very big space, the problem that can cause body to maximize.

On the one hand, the latter's internal clutch mechanism is owing to be to be fixedly installed on mission case inside, thus exist be not easy to dismantle, the problem of the assembleability when making, the maintenance difference when checking.

In addition, aforementioned internal clutch mechanism is owing to be to be fixedly installed on mission case inside, so exist be not easy to dismantle, the problem of the assembleability when making, the maintenance difference when checking, add under the situation of the violent ground work such as field that just rise and fall, pasta with respect to internal clutch mechanism is changed significantly, existence goes up from pasta fully, and the problem of scaling loss takes place.

Summary of the invention

Sulky rice transplanter of the present invention, to be input to mission case from the power of driving engine, at this mission case internal speed-changing, transmission of power is arrived front-wheel and trailing wheel, from the outstanding transmission shaft in a side of mission case as input shaft, on the protrusion of this transmission shaft clutch mechanism is set, aforementioned clutch mechanism covers setting by the cap assembly of detachable.

In addition, Sulky rice transplanter of the present invention, to be input to mission case from the power of driving engine, at this mission case internal speed-changing, transmission of power is arrived front-wheel and trailing wheel, from the outstanding input shaft in the two sides of aforementioned mission case, at the speed-changing mechanism between setting and the aforementioned driving engine on the side of this input shaft, clutch mechanism is set on opposite side, from the outstanding transmission shaft at least one side of aforementioned mission case as input shaft, when on the protrusion of this input shaft, can clutch mechanism be set with freely dismantling, the supporter of supporting shaft is arranged on mission case inside, support compare with aforementioned transmission shaft single shaft transmission downstream in abutting connection with transmission shaft in abutting connection with supporter, see it is with power-transfer clutch external diameter at least a portion of aforementioned clutch mechanism overlapping the time from the side, this is arranged on mission case inside in abutting connection with supporter.

Have again, Sulky rice transplanter of the present invention, to be input to mission case from the power of driving engine, at this mission case internal speed-changing, transmission of power is arrived front-wheel and trailing wheel, from the outstanding transmission shaft in a side of mission case as input shaft, when on the protrusion of this transmission shaft, clutch mechanism being set, the clutch chamber of this clutch mechanism is held in connection and the oil circuit of mission case is arranged on the wall of the mission case that sets clutch mechanism, aforementioned oil circuit sees it is to be provided in the third quadrant of aforementioned wall from the left surface of body direct of travel in the mission case that is in the stable posture of travelling.

Description of drawings

Fig. 1 is all lateral plans of relevant Sulky rice transplanter of the present invention.

Fig. 2 is identical birds-eye view.

Fig. 3 is the approximate three-dimensional map of vehicle body frame and mission case.

Fig. 4 is the approximate three-dimensional map between driving engine and the mission case.

Fig. 5 is all left side views of mission case.

Fig. 6 is the left side view of mission case front portion.

Fig. 7 is the left side view at mission case rear portion.

Fig. 8 is all planar development section-drawings of mission case.

Fig. 9 is the planar development section-drawing of mission case front portion.

Figure 10 is the planar development section-drawing at mission case rear portion.

Figure 11 is the planar development section-drawing that the transmission of power of expression from the input shaft the mission case front portion to the PTO output shaft constitutes.

Figure 12 is the planar development section-drawing of expression clutch mechanism.

Figure 13 is the planar development section-drawing that the transmission of power of expression from the secondary variable shaft the mission case front portion to main variable shaft constitutes.

Figure 14 is the planar development section-drawing of the stop mechanism of the main variable shaft of expression.

Figure 15 is the front part of a body of clutch operating is carried out in expression by the master clutch pedal a left side view.

Figure 16 is the front part of a body of clutch brake operation is carried out in expression by the rice transplanting bar a left side view.

Figure 17 is the front part of a body of clutch brake operation is carried out in expression by master clutch pedal and rice transplanting bar a birds-eye view.

Figure 18 is all left side views of mission case of the lubricated formation of expression clutch mechanism.

Figure 19 is the left side view that is illustrated in the mission case front portion of the pasta position of stablizing the clutch chamber in the posture of travelling.

Figure 20 is the left side view of mission case front portion that is illustrated in the pasta position of the clutch chamber in the inclination attitude.

The specific embodiment

Below, according to the embodiment shown in the drawing embodiments of the present invention are described.

At first, all formations of just relevant Sulky rice transplanter of the present invention describe according to Fig. 1～Fig. 3.

Sulky rice transplanter constitutes by driving vehicle 1 with transplanting portion 9 that the rear portion of this driving vehicle 1 links.And, the front and rear of driving vehicle 1 respectively suspension front-wheel 2 and trailing wheel 3 are arranged, be equipped with driving engine 5 as power part in the front portion of vehicle body frame 4.

In the left and right sides substantial middle of the vehicle body frame 4 at these driving engine 5 rears, dispose in fore-and-aft direction length to the mission case 6 that forms, in the front support of this mission case 6 front-wheel 2 is arranged, in back support trailing wheel 3 is arranged.In the both sides of the hood 22 of covering engine 5, when being equipped with preparation seedling carrying base 90, cover mission cases 6 etc. by car body cover 20.Be provided with driver's seat 7 in the upper back of this car body cover 20, be equipped with bearing circle 8 at the rear of the hood 22 of the front portion of car body cover 20.

Aforementioned transplanting portion 9 is by constituting as the seedling carrying base 91 of inserting 4 road seedlings and a plurality of rice transplanting pawls 93 etc., the low seedling carrying base that sets 91 in former high back is passed through lower tracks 95 and guide rail 96, on rice transplanting transmission framework 92 can about back and forth be free to slide ground supported in, by the rotation of rotor casing, the rice transplanting pawl 93 that front end is drawn the ellipticity track is provided in the rear portion of rice transplanting transmission framework 92.

Therefore, travel drive front-wheel 2 and trailing wheel 3 and move it in, from the seedling carrying base 91 that can reciprocatingly slide to the left and right with the seedling of 1 strain amount by 93 taking-ups of rice transplanting pawl, just can carry out continuous seedling rice transplanting operation.

Front portion at rice transplanting transmission framework 92, by rolling fulcrum shaft 17, be provided with hook 94, this hook 94 is attached at the rear portion of driving vehicle 1 by lifting linking member mechanism 10, and this lifting linking member mechanism 10 is included in the top connecting rod 11 that hook 94 top pivots prop up and is linking up with the end connecting rod 12 that 94 bottom pivots prop up.

The top of the after-frame 43 that is inverted u-shaped is seen at 11 Zhi Zaicong back sides of top connecting rod wherein, on the other hand, end connecting rod 12 forwardly has sees the supporter 12a that is triangular shape from the side, prop up in the bottom of aforementioned after-frame 43 at axle the front portion of this supporter 12a, on the top of supporter 12a, be connected with the lift cylinders 15 that 10 liftings of lifting linking member mechanism are driven.And, on the rear axle box 38 that after-frame 43 is wholely set at the rear portion of aforementioned mission case 6, link by mounting bracket 39.

According to such formation, formed and made the parallel rod that lifting linking member mechanism 10 can lifting, even make it cooperate the concavo-convex lifting in field, the rice transplanting posture of the rice shoot that is inserted into can not change yet.Have, aforementioned after-frame 43 also can be used as the support portion dual-purpose of lifting linking member mechanism 10 again, can seek the stable elevation of transplanting portion 9, the reduction of components number and the simplification of structure.In addition, between the rearward end of the top of aforementioned supporter 12a and end connecting rod 12, linking has the arm of reinforcement 12b, thereby has improved the rigidity of end connecting rod 12.

In addition, on the car body cover 20 that is provided with driver's seat 7 grades, be equipped with main shift lever 75, rice transplanting bar 76, secondary shifter bar 72, rice transplanting lifting bar 77, master clutch pedal 74, brake pedal 73 etc., in the bottom of transplanting portion 9, be equipped with and be used for transplanting portion 9 is remained on middle hull 97 and the

side hull

98,99 that the level land of certain altitude is used.Aforementioned middle hull 97 is configured on the left and right sides line of centers of driving vehicle 1, sets

side hull

98,99 on the left-right symmetric position of middle hull 97, thus make transplanting portion 9 about balance keep good, make the rice transplanting stable posture, can be correct carry out rice transplanting.

Below, the formation of each one of relevant mission case 6 is described in having the Sulky rice transplanter of so all formations.

At first, the formation of installation that has a driving vehicle 1 of mission case 6 according to Fig. 1～Fig. 4 subtend describes.

The aforementioned vehicle body frame 4 that mission case 6 is installed be by overlook the side arm 40 that is the roughly U font that extends and the parallel pair of right and left

bogie side frame

41,42 that forms at fore-and-aft direction with mission case 6, and aforementioned after-frame 43 constitute.

And, the leading section of bogie side frame 4142 when linking with side arm 40 back sides, at the rear side of comparing with the fore-and-aft direction substantial middle 41a42a of portion of bogie side frame 4142, flexing and on the basis that forms upward, in the rearward end of this bogie side frame 4142, link the top of obturation one side that aforementioned after-frame 43 is arranged.

At the rear of comparing with the aforementioned fore-and-aft direction substantial middle 41a42a of portion, crossbearer has central link frame 46, in the place ahead of comparing with the fore-and-aft direction substantial middle 41a42a of portion, crossbearer has preceding linkage frame 45, between the both side ends of the both side ends of this preceding linkage frame 45 and aforementioned side arm 40, folder is established and is fixed with the strut bar of overlooking to the bending of L word shape 29.And, be fixed with the maintaining part 28 of cornue shape in the outside of this strut bar 29, on this maintaining part 28, the pillar 90a of aforementioned preparation seedling carrying base 90 is embedded into fixing.

In addition, on preceding linkage frame 45, from

bogie side frame

41,42 in the portion to prolonging of two sides, are provided with brace panel 47, by this brace panel 47, between aforementioned maintaining part 28 and

bogie side frame

41,42, carry out fastening binding, thus the pillar 90a of support fixation that can be certain preparation seedling carrying base 90.

In addition, to the back lower place, extended to approximate horizontal flat support component 50 from the left and right sides median plane of side arm 40, on this support component 50, mounting is fixed with aforementioned driving engine 5.And the rearward end of support component 50 supported the time, on aforementioned support component 50, begins to be equipped with in order peristome 50a50b by aforementioned linkage frame 45 in the past.

Aforementioned peristome 50a50b is seeking all weight-savings of body simultaneously, also in order to promote the heat extraction effect of driving engine 5.In addition,, also can be used as the protective case of driving engine 5 bottoms and utilize, compare, can cut down the number of parts, make it lightweight, have again, can also reduce stack-mounted man-hour, seek low cost with the situation that protective case is set separately because this support component 50 is tabulars.

In such formation, the leading section of mission case 6 is when linking with installing component 49 above the rearward end that is arranged on aforementioned support component 50, and the front and back middle part of mission case 6 links with the bottom of the installing component 48 that is provided with on the body Width substantial middle of aforementioned central link frame 46.

In addition, on the top of this installing component 48, link the base portion that the hydraulic type lift cylinders 15 that makes aforementioned transplanting portion 9 liftings is arranged.Have, as previously mentioned, the rear portion of mission case 6 by the rear-axle casing 38 that is wholely set, is attached to the lower end of after-frame 43 by mounting bracket 39 again.

Promptly, by on vehicle body frame 4, linking the forward and backward, central of mission case 6, make mission case 6 and vehicle body frame 4 bring into play function as the actv. intensity strengthening part of rice transplanter jointly, thereby increase substantially the level of vehicle body frame 4, the rigidity and the intensity of vertical, twisting direction.

Below, with regard to the general structure of relevant mission case 6, describe by Fig. 1, Fig. 5～Figure 10.

In the front portion of mission case 6, be provided with the speed change chamber 60 of various speed-changing mechanisms in the formation, at the left and right sides of this speed change chamber 60 face, front axle housing 37 is fixedly installed by one.Towards the below, be set with wheel hub from the left and right end portions of this front axle housing 37, propping up the front truck wheel shaft 66 that fixedly installs front-wheel 2 at the bottom of this wheel hub axle.

On the one hand, as previously mentioned,, be integrally formed in the barrel-contoured rear-axle casing 38 of left and right directions retainer shaft core, in this rear-axle casing 38, be provided with side clutch mechanism 79, tween drive shaft 31 in order from the front in the rearward end of mission case 6.Both ends, the left and right sides at this tween drive shaft 31 are set with reducing gear 32, the setting that is fixed on the medial end that aforementioned trailing wheel 3 is fixedly set in the rear wheel axle drive shaft 69 on the outboard end of this reducing gear 32 and reducing gear 33 engagements, this reducing gear 33.And, in the outside of these reducing gear 32,33, cover the termination rack 16 that is provided with an axle rear wheel axle drive shaft 69.

Like this, if front axle housing 37 and rear-axle casing 38 are wholely set with mission case 6, then can support front and back wheel 2,3, as previously mentioned by mission case 6, owing to can bear a part, can alleviate burden to vehicle body frame 4 as the framework of body intensity strengthening part.

In addition, right side in aforementioned speed change chamber 60, form rice transplanting transfer chamber 34, rear portion in this rice transplanting transfer chamber 34, axle has the rice transplanting PTO axle 65 that has a core at fore-and-aft direction, and the rear end of this rice transplanting PTO axle 65 is by not shown PTO transmission shaft etc., link with aforementioned transplanting portion 9, thereby transmit the power that is used to drive seedling-transplanting device.Equally, left side in speed change chamber 60, also form fertilising transfer chamber 201, rear portion in this fertilising transfer chamber 201, axle has the fertilising PTO axle 202 that has a core at fore-and-aft direction, and the rear end of this fertilising PTO axle 202 is by variable-speed motor etc., link with the side slat fertilizer applicator 205 at driver's seat 7 rears, thereby transmit the power that is used to drive this side slat fertilizer applicator 205.

Like this, because rice transplanting PTO axle 65 fertilising PTO axles 202 all are rearward to stretch out from the side of mission case 6,, thereby dynamical stability is passed on even also can be not disturbed when making transplanting portion 9 liftings.

Below, input constitutes for the power in such mission case 6, describes according to Fig. 1, Fig. 3, Fig. 4.

On aforementioned support component 50, in the time of mounting stationary engine 5, from these driving engine 5 beginnings in left side side outstanding output shaft 52, on this output shaft 52, be set with the drive pulley of forming by the circular cone pulley of a pair of plate-like 53.

On the one hand, outstanding from aforementioned mission case 6 anterior beginning input shafts 56 to the side, on this input shaft 56, the follow-up pulley of being made up of the circular cone pulley of a pair of plate-like 55 equally also is installed, simultaneously, between this follow-up pulley 55 and aforementioned drive pulley 53, twine belt 54, forming belt type adjustable speed drive structure 13.

And, in this belt type adjustable speed drive structure 13, be formed on furrow width between the aforementioned circular cone pulley by change, and the effective diameter of pulley 5355 can freely be changed, in mission case 6, can be to importing from the power speed changing of driving engine 5.

Below, constitute for the transmission of power in mission case 6, describe according to Fig. 4～Fig. 6, Fig. 9～Figure 11, Figure 13.

As Fig. 4～Fig. 6, shown in Figure 11, in aforementioned speed change chamber 60, oblique rear down at input shaft 56, secondary variable shaft 63, main variable shaft 61 are propped up by parallel shafts in order, have again, the rear of secondary variable shaft 63 therein retreats axle 67, variable shaft 68, PTO output shaft 64 are also propped up by parallel shafts in order between strain.

One end of input shaft 56 wherein, as previously mentioned, by the output shaft 52 binding interlocks of belt type adjustable speed drive structure 13 with driving engine 5, the follow-up pulley 55 of the drive pulley 53 of these driving engine 5 sides and mission case 6 sides is provided in roughly on the straight line, disposes expeditiously in the space-efficient mode and constitutes to the power transfer path of front-wheel 2 and trailing wheel 3 transferring power.

In addition, the other end of input shaft 56 from mission case 6 to the right outside the side outstanding, clutch mechanism 14 is set on this protrusion, on the other hand, left and right sides substantial middle on input shaft 56, dispose the two trip cogwheels of forming by large diameter gear 121a small- diameter gear 121b 121 that connect,, can cut off and continue from the transmission of power of input shaft 56 to trip cogwheel 121 by clutch mechanism 14 described later.

Promptly, will be input to mission case 6 from the power of driving engine 5, in this mission case 6, carry out speed change with transmission of power in the Sulky rice transplanter of front-wheel 2 and trailing wheel 3, because from the outstanding transmission shaft in a side of mission case 6 as input shaft 56, clutch mechanism 14 is set on the protrusion of this transmission shaft, so can be in this clutch mechanism 14, easily adjust from the outside, compare with clutch mechanism being arranged on mission case 6 in-to-in situations, can improve assembleability, the maintenance when checking when making.

In addition, to be input to mission case 6 from the power of driving engine 5, in this mission case 6, carry out speed change with transmission of power in the Sulky rice transplanter of front-wheel 2 and trailing wheel 3, because from the outstanding input shaft 56 in the two sides of mission case 6, on a side of this input shaft 56, be provided as and aforementioned driving engine 5 between the belt type adjustable speed drive structure 13 of speed-changing mechanism, clutch mechanism 14 is set on opposite side, so that the left and right sides balance of body becomes good, improved the stability of travelling, in addition, can also make the narrowed width of body, seek miniaturization.

Have again, specification change for aforementioned speed-changing mechanism, for example, from the change of belt type adjustable speed drive structure 13 to oil pressure endless gearing mechanism, the change that clutch mechanism 14 is kept intact and only carry out speed-changing mechanism comes corresponding, can seek the reduction of component costs by the communization of clutch mechanism.

As Figure 11, shown in Figure 13, on secondary variable shaft 63, begin in order from the right side, dispose can with aforementioned trip cogwheel 121 ingear splines chimeric two connect cliding gears 120 and fixed gear wheel 118, and the fixed gear wheel 119 formed by large diameter gear 119a small-diameter gear 119b, chimeric shift fork 101 on the cliding gear 120 therein.This shift fork 101 is fixedly installed on the fork shaft 102, and this fork shaft 102 links interlock with aforementioned auxiliary shifter bar 72.

At this, cliding gear 120 is made of low speed gear 120a and high speed gear 120b, operates secondary shifter bar 72, and cliding gear 120 is to right-hand slip, low speed gear 120a by making cliding gear 120 and the small-diameter gear 121b of aforementioned trip cogwheel 121 engagement can be carried out the low speed transmission.On the contrary, cliding gear 120 slides to left, and the high speed gear 120b by making cliding gear 120 and the large diameter gear 121a of aforementioned trip cogwheel 121 mesh, and can carry out high-speed transfer, thereby constitute secondary speed-changing mechanism 70.

As Fig. 5, Fig. 9, Figure 10, shown in Figure 13, left and right sides substantial middle on main variable shaft 61, be set with the power difference gear 122 that constitutes by gear 122a and drive sprocket 122b, in the left side of this power difference gear 122, be equipped with and connect cliding gear 124 with aforementioned fixation gear 119 ingears two.Also chimeric shift fork 103 on this cliding gear 124, this shift fork 103 is fixedly installed on the fork shaft 104, and this fork shaft 104 links interlocks with aforementioned main shift lever 75.Have again, be provided with stop mechanism 78, by the main variable shaft 61 of these stop mechanism 78 brakings in the right-hand end of main variable shaft 61.

At this, cliding gear 124 is made of low speed gear 124a and high speed gear 124b, operation main shift lever 75, and cliding gear 124 is to right-hand slip, high speed gear 124b by making cliding gear 124 and the large diameter gear 119a of aforementioned fixation gear 119 engagement can be carried out high-speed transfer.On the contrary, cliding gear 124 slides to left, and the low speed gear 124a by making cliding gear 124 and the small-diameter gear 119b engagement of aforementioned fixation gear 119 can carry out the low speed transmission, thus formation main speed-changing mechanism 71.

And, between the driven sprocket 126 at drive sprocket 122b on the main variable shaft 61 and mission case 6 rear portions, twining by chain and supporting the chain 80 that 86 stretch-draw are provided with, the propulsive effort of main variable shaft 61 can be delivered on the rear wheel axle drive shaft 69, on the other hand, on the gear 122a on the main variable shaft 61, be engaged with the Ring gear 123 of the differential attachment 81 of the front vehicle wheel axle drive shaft 62 about driving, working power difference gear 122 is with power 2 direction differences forwards, backwards.

In addition, shown in the 9th figure, on these differential attachment 81 sidepieces, dispose differential locking-device mechanism 84.In this differential locking-device mechanism 84, on the side end of Ring gear 123, be formed with the gear 123a that locking is used, the engaging tooth 136a in lock body 136 sides of being closed by spline system on the front vehicle wheel axle drive shaft 62 is incorporated on this gear 123a.This lock body 136 is given elastic force laterally by spring 85, for the layer difference portion with front vehicle wheel axle drive shaft 62 connects and energized.On this position, the engaging tooth 136a of the gear 123a of Ring gear 123 and lock body 136 sides is in the disengaged orientation that is not engaged, about front vehicle wheel axle drive shaft 6262 by differential.

Forming ditch 136b on the outside of aforementioned lock body 136 outer peripheral faces, is the front portion of closing the latching operation pin 137 that pivot props up on mission case 6.On the front portion of this latching operation pin 137, be formed with the one-sided docking section 137a of semicircle shape that is, on the other hand, be formed with the 137b of concavity portion at opposition side, the outstanding arm 138 that is provided with on the base portion of latching operation pin 137 is arranged again.

Aforementioned arm 138 is in state as shown in Figure 9, and the docking section 137a of latching operation pin 137 is positioned on the ditch 136b of lock body 136, closes the position thereby make lock body 136 be positioned at non-system with respect to Ring gear 123.And arm 138 is rotated with not shown differential locking-device operating pedal interlock, if lock body 136 is then pressed in 137 rotations of latching operation pin on the 137a of docking section, engaging tooth 136a and gear 123a system is closed.By this is to close, and Ring gear 123 is to close by lock body 136 with front vehicle wheel axle drive shaft 62, promptly becomes so-called " lockup state of differential attachment 81 ", and the front vehicle wheel axle drive shaft 6262 about formation is not by differential differential locking-device mechanism 84.

In addition, as Figure 11, shown in Figure 13, in the left-half that retreats on the axle 67, be set with intermediate gear 127, this intermediate gear 127 by the fixed gear wheel on the aforementioned auxiliary variable shaft 63 118 and often ingear input gear 127a, and large diameter gear 127b small-diameter gear 127d, reverse gear 127c in addition and constitute, the low speed gear 124a on this reverse gear 127c and the aforementioned main variable shaft 61 can mesh.

Here, operation main shift lever 75, if the low speed gear 124a that makes main variable shaft 61 breaks away from and slides to left more from the fixed gear wheel 119 of secondary variable shaft 63, then the low speed gear 124a of this main variable shaft 61 will with retreat axle 67 reverse gear 127c engagement, the propulsive effort that is delivered to secondary variable shaft 63 from input shaft 56 resembles from secondary variable shaft 63 → fixed gear wheel 118 → input gear 127a → retreat axle 67 → reverse gear 127c → low speed gear 124a → main variable shaft 61 to be transmitted like this.That is, propulsive effort can not be communicated to main variable shaft 61 with remaining unchanged, in case retreating after rotation direction takes a turn for the worse on the axle 67, can be communicated to main variable shaft 61 as the propulsive effort that reverses.

And as shown in figure 11, the right half part on variable shaft between strain 68 disposes the fixed gear wheel of being made up of the first gear 131a, the second gear 131b the 3rd gear 131c 131, in left-half, is provided with the jaw clutch 82 that speed change is used between strain.In this jaw clutch 82, on variable shaft between strain 68, trip is embedded with high-speed clutch gear 129 and the low-speed clutch gear 130 that is set with engaging tooth at medial surface, and high-speed clutch gear 129 wherein often is engaged with aforementioned small-diameter gear 127d with aforementioned large diameter gear 127b, low-speed clutch gear 130.

Have again, between this high-speed clutch gear 129 and low-speed clutch gear 130, when slip clutch pawl 128 that left and right sides face is set with engaging tooth is chimeric by spline, on this slip clutch pawl 128, chimeric have a shift fork 106, this shift fork 106 on fork shaft 107 movably outside embedding, link interlock by not shown handling device.

Here, operate this handling device, slip clutch pawl 128 is to right-hand slip, the engaging tooth by making slip clutch pawl 128 and the engagement dentition of high-speed clutch gear 129 are closed, and resemble from variable shaft 68 → fixed gear wheel between large diameter gear 127b → high-speed clutch gear 129 → slip clutch pawl 128 → strain 131 like this and at high speed is passed on but be input to the aforementioned propulsive effort that retreats axle 67.

On the contrary, slip clutch pawl 128 slides to left, the engaging tooth by making slip clutch pawl 128 and the engagement dentition of low-speed clutch gear 130 are closed, and are input to the aforementioned propulsive effort that retreats axle 67 and resemble between small-diameter gear 127d → low-speed clutch gear 130 → slip clutch pawl 128 → strain variable shaft 68 → fixed gear wheel 131 and can pass on by low speed like this.

In addition,, be embedded with cylindrical shell 108 in the trip of the right half part of PTO output shaft 64 as Fig. 9, shown in Figure 11, on the periphery of this cylindrical shell 108 outer embedding the chimeric cliding gear of spline 132 and with aforementioned the 3rd gear 131c often ingear swim cogwheel 133.Chimeric on this cliding gear 132 have shift fork 105, but this shift fork 105 on fork shaft 107 sway ground by outside in the embedding, link interlock by not shown handling device.

Have again,, be provided with the disconnection bonded assembly PTO power-transfer clutch 83 that carries out to the propulsive effort of PTO output shaft 64 at the left of cylindrical shell 108.In this PTO power-transfer clutch 83, fixedly install the slip clutch pawl 134 of engaging tooth at right flank, on the PTO output shaft 64 by spline on the chimeric basis, by pressing pressing spring 111, be endowed elastic force, have again, on slip clutch pawl 134 to the direction of closing with the engagement dentition of the clutch gear 135 of the left-hand end that is fixedly installed on cylindrical shell 108, chimeric have a fork 109, and this fork 109 links with an axle operating axis 110 in mission case 6.And on this operating axis 110, the aforementioned rice transplanting lifting bar 77 that is used for the PTO clutch lever is bonded interlock.

Here, cliding gear 132 slides to left, if will from the protrusion 132a of the left surface of cliding gear 132 with close in the 133a of the receiving orifice portion system of trip cogwheel 133 upper sheds, the propulsive effort passed on of the aforementioned first gear 131a or second gear 131b → cliding gear, 132 → cylindrical shell 108 so far then from path, be communicated with the order of big footpath the 3rd gear 131c → trip cogwheel 133 → cliding gear 132 → cylindrical shell 108, the velocity of rotation of cylindrical shell 108 can speed change.

And, by operation rice transplanting lifting bar 77, slip clutch pawl 134 is slided to left, can remove the engaging tooth of this slip clutch pawl 134 and aforementioned cylindrical shell 108 clutch gear 135 engaging tooth be to close, thereby can cut off the such power communicating path of cylindrical shell 108 → clutch gear 135 → slip clutch pawl 134 → PTO output shaft 64, form PTO power-transfer clutch 83.

Below, with regard to aforementioned clutch mechanism 14, be elaborated according to Fig. 6, Figure 11, Figure 12.

Input shaft 56 from mission case 6 to the right outside the side outstanding, on this protrusion, detachable ground is provided with the open wrist shape rotor 145 in outer side to the right, and on the circumferential lateral surface of this rotor 145, the friction plate 145a of ring-type is folded fixing with the spaced and parallel ground storey of regulation.

And, between the gap of the peripheral part that is formed at this friction plate 145a, the interior perimembranous of friction plate 146a of ring-type that is arranged at foreign side is when being inserted into alternately, the peripheral part of this friction plate 146a is fixedly set in interior all sides of the power-transfer clutch 146 of wrist shape, is arranged on the right part of aforementioned trip cogwheel 121 these power-transfer clutch 146 detachables.

These rotors 145, the power-transfer clutch 146 detachable earth's axis are propped up on input shaft 56, and this input shaft 56 is by trip cogwheel 121, and are supported rotationally by the bearing 147 of bearing etc.And this bearing 147 is compared with the bottom surface of the recess 6a of the right flank that is formed at mission case 6 and is provided in the inboard, i.e. the inside of mission case 6.In view of the above, even after will being pulled down from input shaft 56 by the clutch mechanism 14 that rotor 145, power-transfer clutch 146 etc. constitutes, this input shaft 56 also remains in the mission case 6.

Promptly, because from the outstanding transmission shaft at least one side of mission case 6 as input shaft 56, on the protrusion of this transmission shaft, be provided with in the clutch mechanism 14 of detachable, bearing 147 as the supporter of supporting shaft is arranged on mission case 6 inside, even so at the state of pulling down clutch mechanism 14, input shaft 56 also is the state that is assembled into assigned position usually, can make clutch mechanism 14 when assembling, and the operability during inspection increases substantially.

Have again, in the recess 6a of clutch mechanism 14 is set, covers simultaneously with this clutch mechanism 14 the power-transfer clutch cover 139 that forms clutch chamber 87 is set, binding parts 154 detachables of this power-transfer clutch cover 139 by bolt etc. the setting that is fixed.

Promptly, from a side of mission case 6 outstanding transmission shaft as input shaft 56, be provided with the Sulky rice transplanter of clutch mechanism 14 at the protrusion of this transmission shaft, this clutch mechanism 14 is owing to be to cover setting by the power-transfer clutch cover 139 that links parts 154 grades, is used as the cap assembly of detachable, so only dismantle this power-transfer clutch cover 139 inside of clutch mechanism 14 is exposed, make the maintenance when checking better, and, can prevent immersion of muddy water etc. etc. really.

And, in power-transfer clutch cover 139, on aforementioned input shaft 56 coaxial, be inserted with the pressuring shaft 149 that can slide towards input shaft 56, on this pressuring shaft 149, control desk 142 by bearing 150 rotationally by outer embedding.Aforementioned control desk 142 is made of the outside plate 151 in big footpath and the inner panel 152 of path, on the neighboring of outside plate 151 therein, be formed with the friction part 151a that overlooks to L word shape, in the side of this friction part 151a, be fixedly installed on the friction plate 146b of ring-type in the outside near configuration with friction plate 146a with respect to aforementioned clutch 146.

In addition, on the part of inner panel 152, be set with press body 144 by linking parts 153, this press body 144 is in chimeric with the outer peripheral face spline of such rotation body 145, between the medial surface that is arranged at spring perch 145b on this rotor 145 and inner panel 152, be folded with clutch spring 143.

On the one hand, at the head of pressuring shaft 149, with these pressuring shaft 149 quadratures, clutch operating pin 141 is closed by system, from the outstanding arm 140 that is provided with of the base portion of this clutch operating pin 141.Detailed is configured to, and on one-sided half part of these clutch operating pin 141 middle parts, forms the recess 141a of concavity, and on this recess 141a, the head of aforementioned pressuring shaft 149 system closes.

In such formation, usually as shown in figure 12, the head of pressuring shaft 149 is positioned on the recess 141a of clutch operating pin 141, by aforementioned clutch spring 143, when inner panel 152 outside sides are given elastic force and are pushed out, the pressurization part 144a of the press body 144 that links with this inner panel 152, with being connected between the board 145c of rotor 145, on the basis of seizing aforementioned friction plate 145a146a on both sides by the arms, pressurize.In addition, inner panel 152 and outside plate 151 common formation control desks 142.

In view of the above, rotor 145 is by friction plate 145a146a, link interlock with power-transfer clutch 146, become " power-transfer clutch access ", the propulsive effort of importing in mission case 6 from driving engine 5 resembles from input shaft 56 → rotor 145 → power-transfer clutch 146 → trip cogwheel 121 → cliding gear 120 → secondary variable shaft 63 like this to secondary variable shaft 63 transmission of drive force.In addition, at this moment, because the also outside side of outside plate 151 is endowed elastic force, the friction part 151a of this outside plate 151 does not contact with the friction plate 146a of power-transfer clutch 146 and is positioned at the position of leaving the gap, so power-transfer clutch 146 can freely rotate.

And, arm 140 rotates with aforementioned master clutch pedal 74, rice transplanting bar 76 interlocks, if clutch operating pin 141 rotates, the docking section 141b of the peripheral part of the opposition side by being equivalent to aforementioned recess 141a then, the head of pressuring shaft 149 is pressed, and the control desk 142 that is embedded in this pressuring shaft 149 outward also is pushed to interior side.

Like this, the elastic force of inner panel 152 opposing aforementioned clutch springs 143 and when inwardly move the side, the pressurization part 144a of the press body 144 that links with inner panel 152 also leaves the gap from aforementioned friction plate 145a146a.In view of the above, the binding of rotor 145 and power-transfer clutch 146 is cut off and becomes " power-transfer clutch cut-out ", from the propulsive effort of driving engine 5 from can not being passed to secondary variable shaft 63 by input shaft 56, thereby constitute power cut bindiny mechanism.

Simultaneously, move with the also inside side of inner panel 152 integrally formed outside plates 151, the friction part 151a of this outside plate 151 is pressurized on the friction plate 146b of power-transfer clutch 146, thereby the rotation of power-transfer clutch 146 is braked, and constitutes stop mechanism.

Constitute clutch mechanism 14 by power cut bindiny mechanism and stop mechanism like this, when " power-transfer clutch cut-out ", the rotation of power-transfer clutch 146 is inerrably stopped, can preventing transmission of power downstream really.

In addition, comparing with input shaft 56 on the single shaft transmission downstream, aforementioned auxiliary variable shaft 63 is by axle, and this pair variable shaft 63 is by being arranged at bearing 148 in the mission case 6 supported the time, this bearing 148 and aforementioned clutch 146 external diameter 146a see that from the side a part constitutes overlappingly.

Promptly, support as with the bearing 148 of comparing single shaft transmission downstream as the input shaft 56 of transmission shaft in abutting connection with the conduct of the secondary variable shaft 63 of transmission shaft in abutting connection with supporter, owing to see it is that power-transfer clutch 146 external diameters with aforementioned clutch mechanism 14 are when having at least a part overlapping from the side, this is arranged on mission case 6 inside in abutting connection with supporter, so can shorten the axle base of input shaft 56 and secondary variable shaft 63, necessary gear is directly diminished, thereby can seek the miniaturization of mission case 6 leading sections.

Below, constitute with regard to aforementioned stop mechanism 78 and operation thereof, describe according to Fig. 6, Figure 12, Figure 14～Figure 17.

As Fig. 6, shown in Figure 14, as previously mentioned, the left and right sides substantial middle on main variable shaft 61 is when fixedly installing dynamic difference gear 122, on the main variable shaft 61 of the right side side of this power difference gear 122, friction plate 61a is folded fixing with the spaced and parallel ground storey of regulation.And, between the formed gap of peripheral part of this friction plate 61a, friction plate 168 is inserted alternately, these friction plate 168 tyings are in the sidewall of mission case 6 and be locked, and these friction plates 61a168 is provided in the right flank of pressing plate 169 and is fixedly installed between the left surface of the link 167 on the sidewall of mission case 6.

Aforementioned pressing plate 169 is fixedly installed on the 170a of half point portion that overlooks to semicircle shape, the 170a of this half point portion forms in the bottom of operating axis 170 cylindraceous, the above-below direction of this operating axis 170 in mission case 6 can horizontally rotate by in the axle, be highlighted setting from the top of mission case 6.And, by rotating this operating axis 170, aforementioned pressing plate 169 and contact component 167 between seizing on both sides by the arms on the basis of friction plate 61a168 and pressurizeing, the rotation with main variable shaft 61 of friction plate 61a is braked, thereby constitutes stop mechanism 78.

If make stop mechanism 78 starts that constitute in this wise, owing to should pass on next propulsive effort from input shaft 56 → secondary variable shaft 63 → main variable shaft 61 → front vehicle wheel axle drive shaft 62 rear wheel axle drive shafts 69, stage at main variable shaft 61 is braked, so even aforementioned auxiliary speed-changing mechanism 70 main speed-changing mechanisms 71 are positioned at center position, front vehicle wheel axle drive shaft 62 rear wheel axle drive shafts 69 can not dally yet, and can brake.

Promptly, to be input to mission case 6 from the power of driving engine 5, at these mission case 6 internal speed-changings, with transmission of power in the Sulky rice transplanter of front-wheel 2 and trailing wheel 3, in transmission downstream stop mechanism 78 is set with respect to the input shaft in mission case 6 56, this stop mechanism 78 is owing to be to be provided in conduct on the main variable shaft 61 of the power difference portion of aforementioned front-wheel 2 and trailing wheel 3, so if make the stop mechanism start, even be positioned at speed-changing mechanism 7071 under the situation of center position, wheel 23 can not rotate, and driving vehicle 1 is stopped.

In addition, side about mission case 6 sets in the stop mechanism 78, because the operating axis of this stop mechanism 78 is provided with from the top of mission case is outstanding, compare with the situation of this operating axis outstanding setting in side, the left and right sides, the left and right sides width of mission case 6 can be dwindled, thereby the miniaturization of body can be sought.

Have again, stop mechanism 78 is owing near the side in the sidewall that is arranged on mission case 6, can support the part of the mechanism that is used to make stop mechanism 78 starts by mission case 6, contact component 167 etc. for example, by the reduction of components number, can also seek the raising of low cost or assembleability.

Here, basis is described with respect to the rice transplanting bar 76 of this stop mechanism 78 or aforementioned clutch mechanism 14 or the operation formation of master clutch pedal 74.

As Figure 12, Figure 14, Figure 16, shown in Figure 17, the base portion of rice transplanting bar 76 is fixedly installed on forwards, backwards crossbearer on the left-right rotation axle 171 on the support component 173 time, aforementioned support component 173 is propped up on the fulcrum shaft 172 that is arranged at driving engine 5 rear portions to the left and right by pivot, in the bottom of this fulcrum shaft 172, hang down and establish the operating panel 174 that side-looking is く word shape.

The preceding bottom 174a of aforementioned operation plate 174 links by the front portion of connecting rod 175 with left armite 177, and the base portion of this left side armite 177 is fixedly installed on the left part of crossbearer in the pivot fulcrum 176 at the rear portion of aforementioned support component 50.The right part of this pivot fulcrum 176 on aforementioned side frame 41 supported rotationally in, link with the base portion of right armite 178, from the front portion of this right side armite 178, rearward extend connecting rod 179, with arm 140 bindings of operation aforementioned clutch operative pin 141.

The 174b of posterior end portion of operating panel 174 is by connecting rod 180 on the one hand, and with the front portion binding of the arm of being arranged to horizontally rotate 181, the base portion of this arm 181 is fixedly installed on the top of aforementioned operation axle 170 outstanding above mission case 6.

In formation like this, as Figure 16, shown in Figure 17, as if rice transplanting bar 76 is operated before body it is rearward toppled over, then operating panel 174 is the center with fulcrum shaft 172, sees deasil from left surface and rotates, by connecting rod 180, arm 181 is forwards drawn, the operating axis 170 of aforementioned stop mechanism 78 as shown in figure 14, is overlooked down deasil and is rotated.Like this, pressing plate 169 and link 167 between to friction plate 61a168 pressurization, the rotation with main variable shaft 61 of friction plate 61a is braked, stop mechanism 78 carries out start.

Simultaneously,, arm 140 is forwards rotated, rotate the clutch operating pin 141 of aforementioned clutch mechanism 14 from the operating effort that connecting rod 175 → left armite 177 → pivot fulcrum 176 → right armite 178 → connecting rod 179 is transmitted by the rotation of operating panel 174.Like this, as shown in figure 12, by docking section 141b, through pressuring shaft 149, control desk 142 inside sides given as security into the elastic force of, inner panel 152 opposing clutch springs 143 and inwardly the side move, the pressurization part 144a of press body 144 leaves at interval from friction plate 145a146a, the binding of rotor 145 and power-transfer clutch 146 is cut off and becomes " power-transfer clutch cut-out ", and clutch mechanism 14 carries out start.

Promptly, only operate rice transplanting bar 76, make aforementioned clutch mechanism 14 and stop mechanism 78 starts simultaneously, in the power that cuts off in mission case, can all brake body, the operation to the loading of the driving vehicle of truck container or when unloading etc. can rapidly and be easy to carry out.

In addition, as Figure 12, Figure 15, shown in Figure 17, the base portion of master clutch pedal 74 by pivot prop up be arranged at side frame 42 about fulcrum shaft 182 on, be set with armite 183 on this fulcrum shaft 182, the upright installation portion 183a that is located at the top of this armite 183 links by the front portion of connecting rod 184 with left armite 187.

And, the base portion of this left side armite 187, be fixedly installed on crossbearer rotationally in about side frame 4142 between the left part of pivot fulcrum 185 on.The base portion of the right part of this pivot fulcrum 185 and right armite 188 links, and forwards extends connecting rod 186 from the front portion of this right side armite 188, with arm 140 bindings of operation aforementioned clutch operative pin 141.

In formation like this, as Figure 15, shown in Figure 17, if enter into master clutch pedal 74, then the installation portion 183a of armite 183 is that rotate widdershins at the center with fulcrum shaft 182, from the operating effort that connecting rod 184 → left armite 187 → pivot fulcrum 185 → right armite 188 → connecting rod 186 is transmitted arm 140 is rearward drawn, the clutch operating pin 141 of aforementioned clutch mechanism 14 is rotated.And identical with the situation of the aforesaid rice transplanting bar 76 of operation, clutch mechanism 14 carries out start.

Promptly, the start of clutch mechanism 14 made the two all can carry out by rice transplanting bar 76 and master clutch pedal 74, no matter take advantage of the seat on the body or under can carry out these operations, in addition, owing to be as the bar of hand-operated tools with as the pedal of operated by foot instrument, operation is become easily, thereby avoided maloperation.

Below, the lubricated formation in the mission case 6 that can carry out transmission of power like this describes according to Fig. 8, Figure 12, Figure 13, Figure 18～Figure 20.

As Fig. 8, Figure 13, shown in Figure 180, never the oil return pipe 155 that graphic control cock begins, in the right flank of the front and back substantial middle that is arranged at mission case 6, be used to attract the induction pipe 156 of the lubricating oil in the mission case 6 to be arranged at the bottom of the speed change chamber 60 of mission case 6 front portions, the sidepiece of the barrel-contoured filter by suction 157 that clamps with oblique rear at the main variable shaft 61 of this speed change chamber 60 is communicated with.

In view of the above, from the bottom of mission case 6 to the field of the speed change chamber 60 of the middle part on the top of mission case 6, formation can store the jar of lubricating oil.

Have again, owing to clipping chain 80, oil return pipe 155 and induction pipe 156 make it in the face of setting, so get back to high temperature grease in the mission case 6 from oil return pipe 155, driving by chain 80 is sent to the back lower place and stirs, and is giving full play to cooling performance during the convection current in mission case 6.Therefore, hi-heat lubricating oil is not forwards induction pipe 156 side shiftings immediately, thereby can make the basic homogeneous that keeps of oil temperature in the mission case 6.

And, as Figure 12, shown in Figure 180, on the wall 6b of the lower side of the recess 6a of the mission case 6 that holds aforementioned clutch mechanism 14, wear through hole, form oil circuit 163, through this oil circuit 163, lubricating oil in the mission case 6 flows in the clutch chamber 87, or flows out in clutch chamber 87.

Promptly, to be input to mission case 6 from the power of driving engine 5, at these mission case 6 internal speed-changings, with transmission of power in the Sulky rice transplanter of front-wheel 2 and trailing wheel 3, because from the outstanding transmission shaft in a side of mission case 6 as input shaft 56, on the protrusion of this transmission shaft, be provided with in the clutch mechanism 14, the clutch chamber 87 of connection being held this clutch mechanism 14 is arranged on the wall 6b of the mission case 6 that sets clutch mechanism 14 with the oil circuit 163 of mission case 6, so with clutch mechanism 14 is arranged on mission case 6 in-to-in situations and compares, not only can improve the assembleability when making, maintenance during inspection, clutch chamber 87 also can be used as jar performance function that stores of lubricating oil, and, because from the more large-scale mission case 6 that stores jar of can being known as, make the circulation of the lubricating oil of q.s by oil circuit 163, even so in the violent ground work such as field that just rise and fall, under the situation that pasta is changed significantly, also can prevent really at friction plate 145a146a, scaling loss in the friction portion of friction part 146b etc.

Here, as shown in figure 19, in the common smooth farm work or travel in mission case 6 be the state of posture 165 (to call " stable travel posture " in the following text), at this moment, aforementioned oil circuit 163 is equipped in the third quadrant 160.

In this case, in the mission case 6 and the lubricating oil in the clutch chamber 87, its pasta 158a159a is positioned at sustained height, owing to can freely circulate by oil circuit 163, so in this stable posture 165 of travelling, can supply with the lubricating oil of q.s for the friction portion in the clutch chamber 87.

And, as shown in figure 20, front part of a body significantly promotes, mission case 6 is under the situation of state of posture 166 (to call " inclination attitude " in the following text), pasta 158b with respect to the lubricating oil in the mission case 6, when the side of the pasta 159b of the lubricating oil in the clutch chamber 87 uprised, oil circuit 163 was positioned at the top position with respect to this pasta 159b.Therefore, as previously mentioned, clutch chamber 87 can be guaranteed the lubricating oil of specified amount as jar performance function that stores of lubricating oil in clutch chamber 87.

In addition, oil circuit is being positioned at first quartile, the second quadrant situation 161162 in, even in arbitrary stable is travelled the situation of posture 165 inclination attitude 166, owing to be positioned at the top position with respect to pasta 159a159b usually, from the supply of mission case 6 interior lubricating oils in clutch chamber 87 is impossible, in addition, oil circuit is being positioned at 164 times of four-quadrant situation, in inclination attitude 166, through this oil circuit 164, lubricating oil in the clutch chamber 87 flows down in mission case 6, and clutch chamber 87 can not be brought into play the function that stores jar as lubricating oil, thereby can not guarantee the lubricating oil of specified amount in clutch chamber 87.

Promptly, in the mission case 6 that is the stable posture 165 of travelling, owing to oil circuit is provided in from the left surface of body direct of travel sees as in the third quadrant of wall 6b of aforementioned wall, for example, even front part of a body significantly promotes, mission case 6 produces big inclination, oil circuit 163 also is positioned at the position of top with respect to pasta 159b, and, because clutch chamber 87 is as jar performance function that stores of lubricating oil, so can in clutch chamber 87, guarantee the lubricating oil of specified amount, positively prevent the scaling loss in friction portion.

In sum, the present invention goes for the installation formation and the lubricated formation of the clutch mechanism of the mission case in Sulky rice transplanter.

Promptly, the present invention will be input to mission case from the power of driving engine, at this mission case internal speed-changing, with transmission of power in the Sulky rice transplanter of front-wheel and trailing wheel, because from the outstanding transmission shaft in a side of mission case as input shaft, on the protrusion of this transmission shaft, clutch mechanism is set, so can easily adjust from the outside, compare with clutch mechanism being arranged on mission case in-to-in situation, can improve assembleability, the maintenance when checking when making.

In addition, aforementioned clutch mechanism just can easily make clutch mechanism inside expose owing to be that cap assembly by detachable is capped setting so only dismantle this cap assembly, and the maintenance when making inspection is better, and, can prevent immersion of muddy water etc. etc. really.

In addition, the present invention will be input to mission case from the power of driving engine, at this mission case internal speed-changing, with transmission of power in the Sulky rice transplanter of front-wheel and trailing wheel, because from the outstanding input shaft in the two sides of aforementioned mission case, at the speed-changing mechanism between setting and the aforementioned driving engine on the side of this input shaft, clutch mechanism is set on opposite side, so that the left and right sides balance of body improve, improved the stability of travelling, in addition, can also make the narrowed width of body, seek miniaturization.Have again, with respect to the change of the specification of aforementioned speed-changing mechanism, can keep the clutch mechanism former state and only the change by speed-changing mechanism come correspondingly, can seek because the reduction of the component costs of the communization of clutch mechanism.

In addition, because from the outstanding transmission shaft at least one side of aforementioned mission case as input shaft, on the protrusion of this input shaft, be provided with in the clutch mechanism of detachable, the supporter of supporting shaft is arranged on mission case inside, even so pulling down the state of clutch mechanism, transmission shaft also is the state that is assembled into institute's allocation usually, and clutch mechanism when assembling, the operability when checking are increased substantially.

In addition, support compare with aforementioned transmission shaft single shaft transmission downstream in abutting connection with transmission shaft in abutting connection with supporter, owing to see with power-transfer clutch external diameter at least a portion of aforementioned clutch mechanism overlapping the time from the side, this is arranged on mission case inside in abutting connection with supporter, so can shorten transmission shaft with in abutting connection with the axle base of transmission shaft, necessary gear is directly diminished, thereby can seek the miniaturization of mission case leading section.

In addition, the present invention will be input to mission case from the power of driving engine, at this mission case internal speed-changing, with transmission of power in the Sulky rice transplanter of front-wheel and trailing wheel, because from the outstanding transmission shaft in a side of mission case as input shaft, when on the protrusion of this transmission shaft, clutch mechanism being set, the clutch chamber of this clutch mechanism is held in connection and the oil circuit of mission case is arranged on the wall of the mission case that sets clutch mechanism, with clutch mechanism is arranged on mission case in-to-in situation and compares, not only can improve the assembleability when making, maintenance during inspection, clutch chamber also can be used as jar performance function that stores of lubricating oil, and, because from being called as the more large-scale mission case that stores jar, make the circulation of the lubricating oil of q.s by oil circuit, even so in the violent ground work such as field that just rise and fall, under the situation that pasta is changed significantly, also can prevent really at friction plate, scaling loss in the friction portion of friction part etc.

In addition, aforementioned oil circuit is in the mission case that is the stable posture of travelling, owing to see it is to be provided in the third quadrant of aforementioned wall from the left surface of body direct of travel, so even front part of a body significantly promotes, mission case produces big inclination, oil circuit also is positioned at the position of top with respect to the pasta in the clutch chamber, and, because clutch chamber is as jar performance function that stores of lubricating oil, so can in clutch chamber, guarantee the lubricating oil of specified amount, positively prevent the scaling loss in friction portion.

Claims

1. Sulky rice transplanter, to be input to mission case from the power of driving engine, at this mission case internal speed-changing, transmission of power is arrived front-wheel and trailing wheel, it is characterized in that, from the outstanding transmission shaft in a side of mission case, on the protrusion of this transmission shaft, clutch mechanism is set as input shaft.

2. Sulky rice transplanter as claimed in claim 1 is characterized in that, aforementioned clutch mechanism covers setting by the cap assembly of detachable.

3. Sulky rice transplanter, to be input to mission case from the power of driving engine, at this mission case internal speed-changing, transmission of power is arrived front-wheel and trailing wheel, it is characterized in that, from the outstanding input shaft in the two sides of aforementioned mission case,, clutch mechanism is set on opposite side at the speed-changing mechanism between setting and the aforementioned driving engine on the side of this input shaft.

4. as claim 1,2 or 3 described Sulky rice transplanters, it is characterized in that, from the outstanding transmission shaft at least one side of aforementioned mission case as input shaft, when can clutch mechanism be set on the protrusion of this input shaft, the supporter of supporting shaft is arranged on mission case inside with freely dismantling.

5. as claim 1,2,3 or 4 described Sulky rice transplanters, it is characterized in that, from support compare with aforementioned transmission shaft single shaft transmission downstream in abutting connection with transmission shaft in abutting connection with supporter, see it is with power-transfer clutch external diameter at least a portion of aforementioned clutch mechanism overlapping the time from the side, this is arranged on mission case inside in abutting connection with supporter.

6. Sulky rice transplanter, to be input to mission case from the power of driving engine, at this mission case internal speed-changing, transmission of power is arrived front-wheel and trailing wheel, it is characterized in that, the outstanding transmission shaft from a side of mission case as input shaft, on the protrusion of this transmission shaft, clutch mechanism is set in, the clutch chamber of this clutch mechanism is held in connection and the oil circuit of mission case is arranged on the wall of the mission case that sets clutch mechanism.

7. Sulky rice transplanter as claimed in claim 6 is characterized in that, aforementioned oil circuit sees it is to be provided in the third quadrant of aforementioned wall from the left surface of body direct of travel in the mission case that is in the stable posture of travelling.