CN1163112C - Walking rice transplanter pendulous body - Google Patents
Walking rice transplanter pendulous body Download PDFInfo
- Publication number
- CN1163112C CN1163112C CNB971255059A CN97125505A CN1163112C CN 1163112 C CN1163112 C CN 1163112C CN B971255059 A CNB971255059 A CN B971255059A CN 97125505 A CN97125505 A CN 97125505A CN 1163112 C CN1163112 C CN 1163112C
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- China
- Prior art keywords
- reducing gear
- swing case
- output shaft
- walking
- gearbox
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- Expired - Lifetime
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Abstract
The present invention relates to a walking type transplanting machine which is composed of a gearbox, a transplanting part, a swinging body and walking wheels. A plurality of speed reducing mechanisms are arranged in the swinging body 25, for example, two stages of speed reducing mechanisms are arranged in the swinging body 25. A speed reducing shaft 60 is arranged on an approximately middle point between a walking output shaft of the gearbox 4 and a vehicle shaft in the swinging body. The tooth number of a sprocket 56 on the walking output shaft 47 of a first speed reducing mechanism is the same with that of a sprocket 63 on the speed reducing shaft of a second speed reducing mechanism, and the tooth number of a sprocket 62 on the speed reducing shaft of the first speed reducing mechanism is the same with that of a sprocket 64 on the vehicle shaft of the second speed reducing mechanism. The walking type transplanting machine reduces the operating force of a side clutch mechanism.
Description
Technical field
What the present invention relates to is the swing case of mechanism-walk-behind type paddy-field work machine of operating physical force that alleviates the steering operation of walk-behind type paddy-field work machine.
Background technology
Past, in walk-behind type paddy-field work machine, disposing engine and gearbox etc. at the front part of a body of walk-behind type paddy-field work machine, fixedly installing the transmission frame at the rear portion of above-mentioned gearbox, when supporting transplanting portion, give the transplanting portion transferring power.And, left and right sides at above-mentioned gearbox swings up and down the freely outstanding swing case that is being provided with, in this swing case, supporting an end of the output shaft of walking at its leading section pivot, pivot is supporting axletree in swing box back portion, is fixedly installing sprocket wheel respectively on this axletree and walking output shaft, and circle is around driving chain on this sprocket wheel, come transmission of drive force by the Poewr transmission mechanism of forming by one group sprocket wheel and driving chain, thus the road wheel on the drive axle.
In addition, on aforementioned walking output shaft, setting clutch, using this clutch to carry out the combination of transmission of power or break away from operating, with regard to transferring power, operating the transmission of power of just cutting off when breaking away from side for road wheel when operating in conjunction with side.When the clutch of a left and right side wherein being operating as the disengaging side, operated road wheel stops walking, thereby the body of rice transplanter is turned.
And, on aforementioned swing case, connecting linkage, the other end of this linkage is connected on the lifting hydraulic cylinder, when driving this lifting hydraulic cylinder, by linkage the swing case is swung up and down, thus lifting rice transplanter body, under the situation that convex-concave is arranged on the field, by following its convex-concave or tilting individually to make the swing case to swing the left and right horizontal that keeps the rice transplanter body, so that the rice transplanting posture of rice transplanter body keeps level, above-mentioned technology is that people are known.
But setting the Poewr transmission mechanism of forming by one group of sprocket wheel and driving chain in the swing case in the walk-behind type paddy-field work machine of aforesaid prior art, what the speed reducing ratio between output shaft can not be done because of axletree and walking is too big, and the rotation of walking output shaft can not become high speed rotating with respect to axletree.Therefore, aforementioned walking output shaft by low speed rotation driving, the torque of this walking output shaft becomes big, and is big thereby the operating physical force of the side clutch lever of fore side clutch becomes.
If the operating physical force of this side clutch lever is big, when proofreading and correct direct of travel or when Tian Duan turns operation, just need very big operating physical force.Because need in the course of the work to grip clutch lever continually, the very fatigue so operating personnel can become.
Summary of the invention
Purpose of the present invention will solve aforesaid existing in prior technology problem exactly.In order to reach purpose of the present invention, the present invention proposes following technical scheme, the 1st technical scheme of the present invention, front portion at the rice transplanter body is disposing gearbox, disposing the rice transplanting parts in the back of this gearbox, at the outstanding swing case that swings up and down by elevating mechanism that is being provided with of the sidepiece of gearbox, supporting in the walk-behind type paddy-field work machine of the present invention that road wheel constitutes in the rear axle of this swing case, in above-mentioned swing case, the walking output shaft of gearbox and the roughly centre position between the axletree are being provided with deboost axle, between this walking output shaft and deboost axle, be provided with first reducing gear, second reducing gear is being set between this deboost axle and axletree, nearby set firmly bearing at the support of the deboost axle of above-mentioned swing case, make the end of the arm of the linkage that the swing case swings up and down by the supporting of this bearing pivot, above-mentioned first reducing gear and second slows down and is made of sprocket wheel and driving chain.
And, the 2nd technical scheme of the present invention, the number of teeth of the drive sprocket on the sprocket wheel on the walking output shaft of aforementioned first reducing gear and the deboost axle of second reducing gear is identical, and the number of teeth of the driven sprocket on the number of teeth of deceleration second sprocket wheel on the deboost axle of first reducing gear and the axletree of second reducing gear is identical.
Description of drawings
Fig. 1 is the end view with walk-behind type paddy-field work machine of swing case of the present invention.
Fig. 2 is the vertical view of expression gearbox and rice transplanting body.
Fig. 3 is the in-built top plan view of expression swing case of the present invention.
Fig. 4 is the end view that the elevating mechanism of swing case has been used in expression.
Below, embodiments of the invention are described:
Embodiment
Fig. 1 is the end view with walk-behind type paddy-field work machine of swing case of the present invention, and Fig. 2 is the vertical view of expression gearbox and rice transplanting body, and Fig. 3 is the in-built top plan view of expression swing case of the present invention.Fig. 4 is the end view that the elevating mechanism of swing case has been used in expression.
At first, with reference to Fig. 1, Fig. 2 the overall structure of the walking rice transplanter of 6 plantation types is described.Front portion at rice transplanter is setting power part.The engine 2 that constitutes this power part is arranged on the front portion of body, and the top of this engine 2 is covered with cover 3, the transmission of power of this engine 2 is arrived the gearbox 4 at its rear portion of configuration by belt not shown in the figures.Stretch out rearwards from the rear portion of this gearbox 4 be provided with in the middle of transmission bracket 5, be set with centre rice transplanting body 21 at the rear portion of this centre transmission bracket 5, this centre rice transplanting body 21 has the rice transplanting pawl 10,10 of pair of right and left.And fixedly installing from the left and right sides of aforementioned gearbox 4 and to overlook the side transmission bracket 6,6 that slightly is the L type, be set with side rice transplanting body 22 with pair of right and left rice transplanting pawl 10,10 at the rear portion of this side transmission bracket 6,6.Inner shaft in aforementioned middle transmission bracket 5 and side transmission bracket 6,6 is supporting power transmission shaft not shown in the figures, gives each rice transplanting body 21,22,22 with transmission of power, and drives rice transplanting pawl 10,10..., thereby can carry out 6 plantations.Among the figure 100 is rice transplanter middle hull, the 110, the 110th, and the side hull of rice transplanter.
And, being set with the matrix part of handling support 11 at the rear portion of aforementioned middle rice transplanting body 21, this manipulation support 11 stretches out and is arranged on the back upper place.Fixedly installing handlebar 12 and the bar case of overlooking to " コ " font in the upper back of this manipulation support 11.Turning clutch lever 13,13 is being set at the rear portion of aforementioned handlebar 12.Elevating lever 14, rice transplanting clutch lever 15 etc. are being set on the bar case.
On aforementioned manipulation support 11, fixedly installing supporting bracket 16, and the mounting that horizontally slips freely rice shoot mounting table 17.This rice shoot mounting table 17 and the traverse feed axle interlock not shown in the figures that is horizontally installed on aforementioned side rice transplanting body 22 tops, rice shoot mounting table about 17 is reciprocally being moved.
Stretch out be provided with at the left and right sides of aforementioned gearbox 4 and swing up and down possible swing case 25,25, on the axletree 19 at each swing case 25,25 rear portion, fixedly installing road wheel 18,18.And, when driving the aforementioned road wheel 18,18 of walking and move, the rice shoot of a strain part is taken out from the rice shoot microscope carrier 17 sliding back and forth of the left and right sides by rice transplanting pawl 10, carry out the rice transplanting operation continuously.
And, as shown in Figure 4, about divide other aforementioned swing case 25,25 by the also interlock that is connected with the hydraulic jack 31,31 that is provided in front part of a body of a plurality of respectively linkage 30,30 as elevating mechanism, aforementioned mechanism can be used for the uneven inclination all around that brings in revisal field, perhaps, thus the operation by aforementioned elevating lever 14 comes the lifting body can carry out walking on the road.
Below, the Poewr transmission mechanism that drives the aforementioned road wheel 18,18 of walking is described.As shown in Figure 3, left and right sides ground axle suspension power shaft 40 on aforementioned gearbox 4, and an end of this power shaft 40 to extending laterally, is fixedly installing belt pulley 41 in its end from the side of gearbox 4, by the power of belt input engine 2 not shown in the figures.Axle is supporting power shaft 40 and rice transplanting side jackshaft 44, rice transplanting side output shaft 45 in aforementioned gearbox 4.Above-mentioned rice transplanting side jackshaft 44 and rice transplanting side output shaft 45 are parallel with above-mentioned power shaft 40 respectively.
Free sliding ground is in conjunction with speed change change gear 44,44b on aforementioned rice transplanting side jackshaft 44, by switching the position of speed change change gear 44a, 44b, gear from the power shaft 40 is given rice transplanting side jackshaft 44 transmission of power of having slowed down, thereby carries out the driving speed change of rice transplanting side.
Give rice transplanting side output shaft 45 by the transmission of power that gear will be somebody's turn to do by speed change, the angular wheel of the pars intermedia by fixing this rice transplanting side output shaft 45 is given transmission of power in the transmission bracket 5.And, with the left and right end portions of rice transplanting side output shaft 45 from gearbox 4 sides to extending laterally, transmission of power is given in the aforementioned side transmission bracket 6,6.
And, by axle support aforementioned power shaft 40 with aforementioned power shaft 40 parallel earth's axis supporting walking side jackshafts 46, the walking output shaft 47,47, on walking side jackshaft 46, horizontally slip freely in conjunction with change gear 46a, make the transmission of power of having slowed down give the side jackshaft 46 of walking by position and the gears engaged on the power shaft 40 of switching above-mentioned change gear 46a.And, be meshed by making gear and change gear 46a on the aforementioned rice transplanting side jackshaft 44, rice transplanting side jackshaft 44 is used as the countershaft for walking side jackshaft 46, transmit the power that reverses for walking side jackshaft 46.
Aforementioned walking output shaft 47,47 is bearing in the sidepiece of gearbox 4 respectively by axle, with about each medial end of walking output shaft 47,47 be arranged at the left and right sides pars intermedia of gearbox 4, idler gear 53 rotates freely outer output shaft 47, the 47 inner end sides of respectively walking that are embedded in, above-mentioned idler gear 53 is engaged on the gear on the walking side jackshaft 46, is used for transmitting the power of walking side jackshaft 46.By side clutch 50,50 from above-mentioned idler gear 53 to walking output shaft 47,47 transferring power.
The clutch body 51 and the steel ball of above-mentioned side clutch 50,50 wheel hubs by central gear 53, tubular constitute, the wheel hub of above-mentioned idler gear 53 is be used for supporting walking output shaft 47,47 interior distolateral, the clutch body of above-mentioned tubular horizontally slips and freely is located on the walking output shaft 47, above-mentioned steel ball be contained between above-mentioned wheel hub and the clutch body 51 can with above-mentioned both combine.
On the outer peripheral face of aforementioned clutch body 51,51, the motion arm 52 with aforementioned turning trip(ping) lever 13,13 interlocks in outer embedding, by this motion arm 52 operated clutch body 51 is slided.If above-mentioned clutch body 51 is slided into the outside, the steel ball in the joint portion of clutch body 51 in the pushing hub end combines by the wheel hub and the walking output shaft 47 of this steel ball with idler gear 53.If clutch body 51 is slided into the inboard, not combination of steel ball, just become cut-out to the transmission of power of walking output shaft 47 from taking off state.
The end of aforementioned walking output shaft 47,47 is inserted in the aforesaid swing case 25,25 of giving prominence to setting with swinging up and down.That is, fixedly installing the pivot part of being made up of bearing etc. 55 at the side (front end) of aforementioned swing case 25, pivot is supporting the end of the output shaft 47 of walking in this pivot part 55, and swing case 25 be that swing at the center with walking output shaft 47.And, from aforementioned walking output shaft 47 transferring power in swing case 25, thus ground- engaging wheel 18,18 walkings.
Below, the mechanism in the aforementioned swing case 25 that the present invention relates to is described.Be equipped with in above-mentioned swing case 25 that multistage () reducing gear for example, secondary drives pivot by this reducing gear and props up aforementioned axletree 19 on the rear end of swing case 25.That is, as shown in Figure 3, on stretching the end that is located at the walking output shaft 47 in the aforementioned swing case 25, fixedly installing drive sprocket 56.And pivot is propping up deboost axle 60 on the roughly centre position of aforementioned swing case 25, on this deboost axle 60, rotate freely outside embedding wheel hub 61, fixedly installing first sprocket wheel 62 that slows down in the outside of the outer peripheral face of this wheel hub 61.Aforementioned deceleration first sprocket wheel 62 disposes at grade with drive sprocket 56, and circle has constituted first reducing gear thus around driving chain 66 between deceleration first sprocket wheel 62 and drive sprocket 56.
Inboard at the outer peripheral face of aforementioned wheel hub 61 is fixedly installing second sprocket wheel 63 that slows down.This second sprocket wheel 63 that slows down disposes at grade with the driven sprocket 64 that is fixedly installed on the axletree 19, and circle has constituted second reducing gear thus around driving chain 67 on the above-mentioned driven sprocket 64 and second sprocket wheel 63 that slows down.
By aforementioned deboost axle 60 being configured in the roughly middle part of 49 of walking output shaft 47 and axletrees, the driving chain 66 of first reducing gear can use identical driving chain with the driving chain 67 of second reducing gear, when assembling, can not make a mistake driving chain, and its driving chain has versatility, thereby can reduce cost.
By adjusting speed reducing ratio and the speed reducing ratio that passes to the walking driving side, can make the speed reducing ratio of first reducing gear identical with the speed reducing ratio of second reducing gear to aforementioned transplanting portion side transferring power.That is, with aforementioned deceleration second sprocket wheel 63 and drive sprocket 56 is made the same number of teeth, with the sprocket wheel of shape, become general part.And, become general purpose accessory by making aforementioned driven sprocket 64 and slow down first sprocket wheel, the 62 same numbers of teeth, same shape, can reduce cost of manufacture.
And the Poewr transmission mechanisms in the aforementioned swing case 25 are not the mechanisms that only is defined in sprocket wheel, driving chain, can be to use belt pulley, driving belt yet, and two belt pulleys are moved about integratedly is entrenched in mechanism on the aforementioned deboost axle 60.Can also be in addition in aforementioned swing case 25 before and after two power transmission shafts of configuration and carry out the reducing gear of interlock by the gear of deceleration usefulness.
Like this, after the driving force of aforementioned walking output shaft 47 is slowed down by first reducing gear that is made of drive sprocket 56 and driving chain 66, first sprocket wheel 62 that slows down, again the driving force that is decelerated is slowed down by second reducing gear that is made of second sprocket wheel 63 that slows down, driving chain 67, driven sprocket 64, the driving of walking output shaft 47 is divided into secondary time deceleration rear drive axletree 19.Reducing gear in the swing case 25 that constitutes of secondary in this wise, even increase speed reducing ratio for the axletree 19 of walking output shaft 47, it is very big that the speed reducing ratio of each reducing gear can not become yet, on each sprocket wheel 56,61,62,64, can not load with big torque, so can not produce abnormal situation that tooth fractures etc.
Even axletree 19 is suitable for the rice transplanting speed of transplanting portion, its speed reducing ratio of reducing gear by this two-stage arrangement increases, can keep the revolution of walking output shaft 47 thus at high speed, thereby, become very smooth to the bonding state of the transmission of power of the clutch body 51 that has used aforesaid side clutch 50 and the switching of disengaged position, alleviated the operating physical force that makes the turning trip(ping) lever 13,13 that clutch body 51 slides.
As shown in Figure 4, be set with bearing 70,70 on aforementioned swing case 25, this bearing 70,70 is positioned at the roughly back upper place of the deboost axle 60 that constitutes reducing gear, uses these bearing 70,70 pivots propping up the arm end of aforesaid a plurality of linkage 30.By making above-mentioned swing case 25 swings, foregoing body carries out lifting, and big load in load on the equipping position of the bearing 70,70 of swinging case 25.Though because of this aforementioned swing case 25 of loading, with bearing 70,70 is that the center produces some deflections, there is not a side of the driving-chain of the Poewr transmission mechanism that secondary constitutes to relax and abnormal situation of the opposing party's anxiety, make the tension force of the driving chain of two Poewr transmission mechanisms keep certain, constantly transmitting correct power.
The present invention has just produced following effect because of being aforesaid formation.Promptly, as the 1st technical scheme of the present invention, by at front part of a body configuration gearbox, at the back of this gearbox configuration transplanting portion, at the outstanding swing case that is provided with of the sidepiece of gearbox, this swing case swings up and down by elevating mechanism, rear axle at this swing case is supporting the legged hand that walking constitutes, because of in swing in the case, the walking output shaft of gearbox and the roughly centre position between the axletree are provided with deboost axle, between above-mentioned walking output shaft and deboost axle, first reducing gear is set, second reducing gear is set between deboost axle and axletree, and this first reducing gear and second reducing gear are made of sprocket wheel and driving chain.With axletree compare its walking output shaft can keep high speed rotating, this walking output shaft is used for transferring power in the swing case, like this, become very smooth to the combination of the side clutch of turning or the switching of disengaged position, the operating physical force of operating the control stick of above-mentioned side clutch lightens, proofread and correct the operation of direct of travel easily, and, also become free and relaxed in the turning of Tian Duan operation.
And, because of swing in the case, the walking output shaft of gearbox and the roughly centre position between the axletree be provided with deboost axle, between above-mentioned walking output shaft and deboost axle, first reducing gear is set, second reducing gear is set between deboost axle and axletree, and this first reducing gear and second reducing gear are made of sprocket wheel and driving chain.In its first mechanism and second reducing gear, can use identical driving chain, in factory, can not make a mistake driving chain during assembling, thereby assembling operation is oversimplified, because of this driving chain has versatility, so, can reduce cost.
As the 2nd technical scheme of the present invention, make the identical number of teeth, make the number of teeth of the sprocket wheel on the axletree of the sprocket wheel on the deboost axle of first reducing gear and second reducing gear identical by the sprocket wheel on the deboost axle of the sprocket wheel on the walking output shaft that makes aforementioned first reducing gear and second reducing gear, the sprocket wheel of first reducing gear and second reducing gear is used as general purpose accessory, because make identical part become many, so, improved the versatility of part, thereby can reduce cost.
Claims (2)
1. the swing case of a walk-behind type paddy-field work machine, this walk-behind type paddy-field work machine is disposing gearbox (4) at its front part of a body, setting rice transplanting parts (21,22) at the rear of this gearbox (4), at the outstanding swing case (25) that is being provided with of the sidepiece of above-mentioned gearbox (4), this swing case (25) swings up and down by elevating mechanism, is supporting road wheel (18) in the rear axle of above-mentioned swing case (25); It is characterized in that, in above-mentioned swing case, roughly middle place between the walking output shaft (47) of gearbox (4) and the axletree (19) is provided with deboost axle (60), between this walking output shaft (47) and deboost axle (60), first reducing gear is set, between this deboost axle (60) and axletree (19), second reducing gear is set, nearby set firmly bearing (70) at the support of the deboost axle (60) of above-mentioned swing case (25), make the end of the arm of the linkage (30) that swing case (25) swings up and down by this bearing (70) pivot supporting, this first reducing gear and second reducing gear are made of sprocket wheel and driving chain.
2. the swing case of walk-behind type paddy-field work machine as claimed in claim 1, it is characterized in that, deceleration second sprocket wheel on the deboost axle (60) of the drive sprocket (56) on the walking output shaft (47) of aforementioned first reducing gear and second reducing gear is set at the identical number of teeth, the driven sprocket (64) on the axletree of deceleration first sprocket wheel (62) on the deboost axle (60) of first reducing gear and second reducing gear (19) is set at the identical number of teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971255059A CN1163112C (en) | 1997-12-15 | 1997-12-15 | Walking rice transplanter pendulous body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971255059A CN1163112C (en) | 1997-12-15 | 1997-12-15 | Walking rice transplanter pendulous body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1220080A CN1220080A (en) | 1999-06-23 |
| CN1163112C true CN1163112C (en) | 2004-08-25 |
Family
ID=5177291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB971255059A Expired - Lifetime CN1163112C (en) | 1997-12-15 | 1997-12-15 | Walking rice transplanter pendulous body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1163112C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106258118B (en) * | 2015-06-24 | 2018-12-07 | 株式会社久保田 | Walk-behind type paddy-field work machine |
-
1997
- 1997-12-15 CN CNB971255059A patent/CN1163112C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1220080A (en) | 1999-06-23 |
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| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: YANMAR CO., LTD. Free format text: FORMER OWNER: YANMAR AGRICULT EQUIP Effective date: 20100122 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100122 Address after: Osaka Japan Patentee after: Yanmar Co., Ltd. Address before: Osaka Japan Patentee before: Yanmar Agricultural Equipment Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20040825 |
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| CX01 | Expiry of patent term |