CN1259813C - Power transmission structure for small tillers - Google Patents
Power transmission structure for small tillers Download PDFInfo
- Publication number
- CN1259813C CN1259813C CNB008197997A CN00819799A CN1259813C CN 1259813 C CN1259813 C CN 1259813C CN B008197997 A CNB008197997 A CN B008197997A CN 00819799 A CN00819799 A CN 00819799A CN 1259813 C CN1259813 C CN 1259813C
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- China
- Prior art keywords
- gearbox
- ploughing
- weeding
- gear
- travelling
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/082—Transmissions; Gearings; Power distribution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/02—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs with tools on horizontal shaft transverse to direction of travel
- A01B33/027—Operator supported tools, e.g. using a harness for supporting the tool or power unit
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Soil Sciences (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Soil Working Implements (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Transmission Devices (AREA)
- General Details Of Gearings (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Arrangement Of Transmissions (AREA)
Abstract
A power transmission structure capable of attempting miniaturization and weight reduction of small tillers. A small tiller comprising a transmission case bent substantially in a doglegged shape as seen in a side view and interlocked with a prime mover, a traveling section disposed in the front of the transmission case, and a tilling section disposed in the rear of the transmission case, wherein the drive shaft of the transmission case is interlocked with the output shaft of the prime mover through a speed change mechanism, and an axle for driving the traveling section and a tilling shaft for driving the tilling section are individually interlocked with the drive shaft of the transmission case, so that the power from the prime mover is transmitted from a single drive shaft of the transmission case to the traveling section and tilling section.
Description
Technical field
The present invention relates to the transmission of power structure of small-sized tiller.
Background technology
Original small-sized tiller, binding is seen the gearbox that bends to the へ font from the side and is linked on prime mover, on the leading section of this gearbox, rotate the axletree that width extension to the left and right freely is installed, wheel is installed on the left and right end portions of this axletree and is formed the portion of travelling, on the rearward end of gearbox, rotate the tilling shaft that width extension to the left and right freely is installed, a plurality of ploughing and weeding pawls that extend to radial direction are installed on the peripheral part of this tilling shaft and are constituted ploughing and weeding homework department.
In addition, original small-sized tiller is arranged on gearbox with driving shaft and the ploughing and weeding operation that is used to drive ploughing and weeding homework department with driving shaft being used to drive travelling of the portion of travelling.And original small-sized tiller links by the gear that is configured in gearbox top on the output shaft of prime mover and travels with driving shaft and ploughing and weeding operation with driving shaft and link.
In addition, the ploughing and weeding homework department side case constituting body that the low heeling condition in high back was extended before gearbox began by the portion of the travelling side case constituting body that begins from bend to extend with low early and high after heeling condition with from bend constitutes, and the angular bend one-tenth between portion's side case constituting body and the ploughing and weeding homework department side case constituting body of travelling less than the acute angle at right angle.
; above-mentioned original small-sized tiller; drive the ploughing and weeding operation driving shaft that travelling of the portion of travelling used driving shaft and driven ploughing and weeding homework department owing on gearbox, be provided with; on driving shaft separately, link the output shaft of prime mover and link by gear; so construct the complexity that becomes from the output shaft of prime mover to the transmission of power of each driving shaft, existence can not be carried out the problem of assembling operation and maintenance smoothly.
And above-mentioned original small-sized tiller because gear is configured in the top of gearbox, is difficult so seek to reduce the overall height and the miniaturization of small-sized tiller.
Have, above-mentioned original small-sized tiller because gearbox is bent to acute angle, so the position of centre of gravity of small-sized tiller uprises, is difficult to stably travel in the field again.
Summary of the invention
Therefore, small-sized tiller of the present invention, binding is seen from the side and is bent to the roughly gearbox of へ font on prime mover, front portion at this gearbox disposes the portion of travelling, simultaneously in the rear portion of gearbox configuration ploughing and weeding homework department, on the output shaft of prime mover, link the driving shaft of gearbox and link by gear, on the driving shaft of this gearbox, link to drive the axletree of the portion of travelling respectively and drive the tilling shaft of ploughing and weeding homework department and link, the driving shaft of the power of prime mover from gearbox is delivered in the portion of travelling and the ploughing and weeding homework department.
In addition, the present invention is seeing configuration driven axle on the bend that bends to the gearbox of へ font roughly from the side, and disposing gear on the anterior position of this driving shaft.
In addition, the present invention, see from the side the gearbox that bends to へ font roughly begin by the portion of the travelling side case constituting body that begins from bend to extend with from bend with low early and high after heeling condition before the ploughing and weeding homework department side case constituting body that extends of the low heeling condition in high back constitute, crooked and maintenance is greater than the angle at right angle.
Description of drawings
Fig. 1 is the left view of expression small-sized tiller of the present invention.
Fig. 2 is the vertical view of expression small-sized tiller of the present invention.
Fig. 3 is the top plan view of the inside of expression gearbox.
Fig. 4 is the left view of the inside of expression gearbox.
Fig. 5 is the top plan view of expression gear.
Fig. 6 is a top plan view of representing the portion of travelling.
Fig. 7 is the top plan view of expression ploughing and weeding homework department.
Embodiment
Small-sized tiller of the present invention is seeing that from the side bending to roughly the gearbox of へ font is attached on prime mover and interlock with it, in the front portion of this gearbox configuration portion of travelling, simultaneously in the rear portion of gearbox configuration ploughing and weeding homework department.
In addition, small-sized tiller of the present invention, by gear the driving shaft of gearbox is attached on the output shaft of prime mover and interlock with it, on the driving shaft of this gearbox, link respectively be used to drive the axletree of the portion of travelling and be used to drive the tilling shaft of ploughing and weeding homework department and respectively with they interlocks.
And, the power of prime mover, on being delivered to the driving shaft of gearbox after, be directly delivered to from a driving shaft of gearbox on the tilling shaft of the axletree of the portion of travelling and ploughing and weeding homework department.
Therefore, small-sized tiller of the present invention can be simplified the structure of transmission of power, can improve the assembling operation and the maintainability of gearbox, can make gearbox and then make miniaturization of small-sized tiller own and lightweight.
And, small-sized tiller of the present invention, configuration driven axle on the bend of gearbox disposes gear on the anterior position of this driving shaft.
For this reason, small-sized tiller of the present invention can reduce the height of gearbox, can reduce the height of small-sized tiller itself, can seek the miniaturization and the lightweight of small-sized tiller itself, and simultaneously, riding stability can be improved in the position by lowering the center of gravity.
In addition, small-sized tiller of the present invention, gearbox bend to from bend begin the portion of the travelling side case constituting body that extends with low early and high after heeling condition and begin from bend before the ploughing and weeding homework department side case constituting body that extends of the low heeling condition in high back, and maintenance is greater than the angle at right angle.
For this reason, small-sized tiller of the present invention can reduce the height of gearbox, can reduce the overall height of small-sized tiller itself, can seek the miniaturization and the lightweight of small-sized tiller vehicle body, can improve riding stability by the position that lowers the center of gravity simultaneously.
The following describes specific embodiment of the present invention.
Small-sized tiller 1 of the present invention, as shown in Figures 1 and 2, seeing configuration prime mover portion 3 on the anterior position that is bent to the gearbox 2 of へ font roughly from the side, simultaneously sail portion 4 at the preceding side lower part configuration line of gearbox 2, and dispose ploughing and weeding homework department 5 at the back side lower part of gearbox 2, again in the top position of gearbox 2 configuration operation portion 6.
Prime mover mounting table 7 as shown in Figures 1 and 2, is installed at the preceding side lower part of gearbox 2 by prime mover portion 3, at the top of this prime mover mounting table 7 mounting prime mover 8, on the top of this prime mover 8 fuel tank 9 is installed.Among the figure, symbol 10 is bumpers of counterweight before the double as.
The axletree 11 that width to the left and right extends as shown in Figures 1 and 2, is freely installed in the preceding side lower part revolution of gearbox 2 by the portion 4 of travelling, and wheel 12 is installed respectively on the left and right end portions of this axletree 11.The detailed construction of portion 4 of travelling is narrated in the back.
Ploughing and weeding homework department 5, as shown in Figures 1 and 2, the tilling shaft 13 of width extension is to the left and right freely installed in back side lower part revolution at gearbox 2, on this tilling shaft 13, linking the ploughing and weeding pawl 14 and the interlock with it of extending to radial direction, be installed with on the middle part of gearbox 2 rotary motion trace 15 that covers ploughing and weeding pawl 14 above the leading section of ploughing and weeding cover 16, tilling depth adjusting rod 17 is freely installed in rearward end lifting at this ploughing and weeding cover 16, simultaneously, the mud jumping that rubber system vertically is set on the rearward end of ploughing and weeding cover 16 prevents to cover 18, among the figure, symbol 19 is the support racks that are used to support tilling depth adjusting rod 17.The detailed construction of ploughing and weeding homework department 5 is narrated in the back.
Gearbox 2, the power shaft 30 of width extension is to the left and right rotated the preceding upper lateral part that is mounted freely on bend 27 under the state that protrudes to the left side side of gearbox 2, the output shaft (omit and illustrate) that this power shaft 30 is attached to prime mover 8 is gone up and interlock with it by the driving belts 33 in the belt housing 31.Symbol 32 is mounted in the driving pulley on the left part of power shaft 30 among Fig. 4, and symbol 33 is output shaft and the power shaft 30 of gearbox 2 and the driving belts that link that are used to link prime mover 8.
Gearbox 2, on bend 27, rotate the driving shaft 34 that width extension to the left and right freely is installed, on this driving shaft 34, link power shaft 30 and interlock with it by gear 35, above-mentioned power shaft 30 links and interlock with it with the output shaft of prime mover 8.
Gear 35 is the bend 27 of gearbox 2, accommodates the anterior position that is disposed at driving shaft 34, and it is constructed as follows.
Promptly, gear 35, as Fig. 3～shown in Figure 5, under the state that width extends to the left and right, in the preceding upper lateral part move left and right of the bend 27 of gearbox 2 travel ploughing and weeding switching mechanism 36 and front and back are installed freely and advance switching mechanism 37, the above-mentioned ploughing and weeding switching mechanism 36 of travelling is used to switch the ploughing and weeding work pattern that makes body drive ploughing and weeding homework department 5 again with the low-speed forward pattern of low-speed forward with when making body with low-speed forward, above-mentioned front and back are advanced switching mechanism 37 and are used to switch and make body with the pattern that advances at utmost speed that advances at utmost speed with make body with the laggard pattern of the laggard low speed of low speed, in two switching mechanisms 36, on 37 the right part, form fastening recess 38 respectively, 39, at this fastening recess 38, engaging a pair of holding section 40, front and back that the peripheral part of the shifting arm 23 of the base end part of wearing out gear lever 22 forms on any of 39, one of 41.Among the figure, the 42, the 43rd, the breaker slot that on the peripheral part of two switching mechanisms 36,37, forms, the 44, the 45th, snap in the detent ball in the breaker slot 42,43.
And, for gear 35, when when gathering sill 26 is operated gear lever 22 upward, the holding section 40 of the front side of the shifting arm 23 of gear lever 22 is fastened in the fastening recess 38 of the ploughing and weeding switching mechanism 36 of travelling, when same as before gear lever 22 along gathering sill 26 when right is operated, accompany therewith, the ploughing and weeding switching mechanism 36 of travelling is moved to right.In addition, when making gear lever 22 when gathering sill 26 is operated downwards, before and after being fastened on, the rear side holding section 41 of the shifting arm 23 of gear lever 22 advances in the fastening recess 39 of switching mechanism 37, when width is operated to the left and right along gathering sill 26 gear lever 22 same as before, accompany therewith, front and back advance switching mechanism 37 to the left and right width move.
On the other hand, gear 35 is at the middle part of the power shaft 30 chimeric travelling gear 46 of width free sliding ground spline to the left and right.
The ploughing and weeding switching mechanism 36 of travelling, portion installs downwards and links hook 47 halfway, the top ends of this binding hook 47 snaps onto in the binding groove 48 on the peripheral part that is located at travelling gear 46, move along power shaft 30 with the travelling gear 46 of ploughing and weeding switching mechanism 36 interlocks of travelling, in addition, advance in front and back to rotate the chimeric front and back of freely moving about on the middle part of switching mechanism 37 and advance change gear 49, make these front and back advance change gear 49 and travelling gear 46 meshes.
In addition, gear 35 rotates the variable-speed shaft 50 that width extension to the left and right freely is installed on the preceding side lower part of the bend 27 of gearbox 2, on the middle part of this variable-speed shaft 50, form the path travelling gear 51 that travels, and low-speed gear 52 is installed on the right part of variable-speed shaft 50, have again, on the right part of variable-speed shaft 50, rotate freely move about chimeric and the big footpath ploughing and weeding travelling gear 53 of low-speed gear 52 with diameter.
And low-speed gear 52 and big footpath ploughing and weeding travelling gear 53 can mesh with the travelling gear 46 that spline is entrenched on the power shaft 30.
Have again, gear 35 is installed the big travelling gear 54 that directly travels on the middle part of driving shaft 34, simultaneously, on the right side of driving shaft 34, rotate the chimeric ploughing and weeding driven wheel 55 that freely moves about, path ploughing and weeding travelling gear 56 is installed on the right part of this ploughing and weeding driven wheel 55, have again, the driven wheel 57 that travels is installed on the left part of driving shaft 34.
And, travelling gear 54 and the path that on variable-speed shaft 50, forms travelling gear 51 engagements of travelling of travelling of big footpath, simultaneously, also can advance change gear 49 engagements with the front and back of advancing before and after being entrenched in the switching mechanism 37 of moving about, in addition, path ploughing and weeding travelling gear 56 and big footpath ploughing and weeding travelling gear 53 engagements that are installed on the variable-speed shaft 50, have again, driven wheel 57 travels, by travelling with the axletree 11 binding linkages of driving chain 58 with the portion 4 of travelling, in addition, ploughing and weeding driven wheel 55 is by the tilling shaft 13 binding linkages of ploughing and weeding with driving chain 59 and ploughing and weeding homework department 5.
That is, gear 35, when making gear lever 22 be in erectility, the power shaft 30 that links linkage with prime mover 8 dallies, and travel portion 4 and ploughing and weeding homework department 5 are slack.
In addition, as gear 35, when making gear lever 22 move on the right side backward again after in a single day gathering sill 26 is moved upward, just become the low-speed forward pattern, under such low-speed forward pattern, the travelling gear 46 that accompanies with the ploughing and weeding switching mechanism 36 of travelling moves to the right and becomes state with travelling gear 46 and low-speed gear 52 engagements along power shaft 30, the power of prime mover 8 is delivered to low-speed gear 52 through power shaft 30 from travelling gear 46 and is decelerated, being delivered to path from this low-speed gear 52 through variable-speed shaft 50 travels on the travelling gear 51, be delivered to big footpath and travel on the travelling gear 54 from this path travelling gear 51 that travels, the travelling gear 54 that travels from this big footpath is delivered on the driven wheel 57 that travels through driving shaft 34, be delivered to driving chain 58 on the axletree 11 of the portion of travelling 4 through travelling from this driven wheel 57 that travels, travel the axletree 11 of portion 4 to slowly run the body low-speed forward.Under the pattern of such low-speed forward, travelling gear 46 and large-scale ploughing and weeding travelling gear 53 do not mesh, thereby ploughing and weeding homework department 5 is slack.
Have again, when making gear lever 22 along gathering sill 26 when mobile to the right, gear 35 becomes the ploughing and weeding work pattern, under such ploughing and weeding work pattern, ploughing and weeding switching mechanism 36 is accompanied with travelling, travelling gear 46 moves to the right and becomes travelling gear 46 along power shaft 30 and reaches the state of footpath ploughing and weeding travelling gear 53 engagements greatly with low-speed gear 52, the power of prime mover 8 is delivered to from travelling gear 46 on low-speed gear 52 and the big footpath ploughing and weeding travelling gear 53 through power shaft 30, be delivered to the power on this low-speed gear 52, the same with above-mentioned low-speed forward pattern, be delivered to variable-speed shaft 50 from low-speed gear 52, the path travelling gear 51 that travels, travelling gear 54 travels in big footpath, driving shaft 34, driven wheel 57 travels, travel with on driving chain 58 and the axletree 11, travel the axletree 11 of portion 4 to slowly run, the body low-speed forward, on the other hand, be delivered to the power on the big footpath ploughing and weeding travelling gear 53, be delivered on the path ploughing and weeding travelling gear 56 from big footpath ploughing and weeding travelling gear 53, be delivered on the ploughing and weeding driven wheel 55 from this path ploughing and weeding travelling gear 56, be delivered to driving chain 59 on the tilling shaft 13 of ploughing and weeding homework department 5 through ploughing and weeding from this ploughing and weeding driven wheel 55, tilling shaft 13 rotations of ploughing and weeding homework department 5 are also carried out the ploughing and weeding operation.
In addition, when gear lever 22 along gathering sill 26 in case after moving downwards when mobile to the left, gear 35 becomes the pattern of advancing at utmost speed, under such pattern that advances at utmost speed, advance switching mechanism 37 together with front and back, before and after advance change gear 49 move to the left and become before and after change gear 49 and big footpath travel travelling gear 54 directly (promptly, do not slow down by low-speed gear 52) state of engagement, the power of prime mover 8 advances on the change gear 49 before and after travelling gear 46 is delivered to through power shaft 30, advance change gear 49 speedups is delivered to big footpath and travels on the travelling gear 54 from these front and back, the gear 54 that travels from this big footpath is delivered on the driven wheel 57 that travels through driving shaft 34, be delivered to driving chain 58 on the axletree 11 of the portion of travelling 4 through travelling from this driven wheel 57 that travels, travel axletree 11 high speed rotating of portion 4, body advances at utmost speed.Under such pattern that advances at utmost speed, travelling gear 46 and large-scale ploughing and weeding travelling gear 53 do not mesh, thereby ploughing and weeding homework department 5 is slack.
On the other hand, when gear lever 22 along gathering sill 26 in case when move on the right side backward again after moving downwards, gear 35 becomes the laggard pattern of low speed, under the laggard pattern of such low speed, advance switching mechanism 37 together with front and back, change gear 49 move to the right and become before and after advance the state of change gear 49 and low-speed gear 52 engagements, the power of prime mover 8 advances on the change gear 49 before and after travelling gear 46 is delivered to through power shaft 30, advance change gear 49 is delivered to low-speed gear 52 and is decelerated (promptly from these front and back, for from travelling gear 46 to low-speed gear 52, be transferring power under the state of counter-rotating low-speed forward pattern), being delivered to path from this low-speed gear 52 through variable-speed shaft 50 travels on the travelling gear 51, be delivered to big footpath and travel on the travelling gear 54 from this path travelling gear 51 that travels, the travelling gear 54 that travels from this big footpath is delivered on the driven wheel 57 that travels through driving shaft 34, be delivered to driving chain 58 on the axletree 11 of the portion of travelling 4 through travelling from this driven wheel 57 that travels, the axletree 11 of portion 4 of travelling slowly runs, and body low speed is laggard.Under the laggard pattern of such low speed, travelling gear 46 and large-scale ploughing and weeding travelling gear 53 do not mesh, thereby ploughing and weeding homework department 5 is slack.
As mentioned above, the small-sized tiller 1 of present embodiment, make the driving shaft 34 of gearbox 2 and the output shaft binding linkage of prime mover 8 by gear 35, be used to drive the axletree 12 of the portion of travelling 4 and be used to drive the tilling shaft 13 of ploughing and weeding homework department 5 and interlock with it owing on the driving shaft 34 of this gearbox 2, link respectively, so the transmission of power of prime mover 8 to the driving shaft 34 of gearbox 2 after, be directly delivered to from a driving shaft 34 on the tilling shaft 13 of the axletree 11 of the portion of travelling 4 and ploughing and weeding homework department 5, can make the simple structureization of transmission of power, the assembling operation and the maintainability of gearbox 2 can be improved, the miniaturization and the lightweight of gearbox 2 and small-sized tiller 1 can be realized.
Particularly, the small-sized tiller 1 of present embodiment, because configuration driven axle 34 on the bend 27 of gearbox 2, and configuration gear 35 on the anterior position of this driving shaft 34, so can reduce the height of gearbox 2, can reduce the overall height of small-sized tiller 1, can realize the miniaturization of small-sized tiller 1, can improve riding stability because position of centre of gravity descends simultaneously.
In addition, the small-sized tiller 1 of present embodiment, gearbox 2 bends to the portion of the travelling side case constituting body 28 that extends with low early and high after heeling condition from bend 27 beginning and the low heeling condition in high back is extended before bend 27 beginnings ploughing and weeding homework department side case constituting body 29 and maintenance angle greater than the right angle, as shown in Figure 4, link the axle center of driving shaft 34 and axletree 12 the axle center travel side imagining center line L1 and link the axle center of driving shaft 34 and the ploughing and weeding operation side imagining center line L2 in the axle center of tilling shaft 13 between angle A become the right angle or greater than the angle at right angle, thus, can reduce the height of gearbox 2, can reduce the overall height of small-sized tiller 1, the miniaturization and the lightweight of small-sized tiller 1 can be realized, the stability of travelling can be improved because position of centre of gravity descends simultaneously.
Particularly, the small-sized tiller 1 of present embodiment, because near the configuration gear 35 ploughing and weeding operation side imagining center line L2 in the axle center of axle center that links driving shaft 34 and tilling shaft 13 and on the anterior position in the axle center of driving shaft 34, so can realize the miniaturization of gear 35, can reduce the height of gearbox 2 thus, can reduce the overall height of small-sized tiller 1, the miniaturization and the lightweight of small-sized tiller 1 can be realized, the stability of travelling can be improved because position of centre of gravity descends simultaneously.
At this, the lug boss 71 rotations freely supporting of driven gear 63 of travelling by the side gear 68 on the base end part that is installed in left side axletree 60.For this reason, can bear the loading that produces with driving chain 58 by travelling with the lug boss 71 of side gear 68 securely on the driven gear 63 that travels, the loosening of driven gear 63 and toppling over of can preventing to travel can be guaranteed successfully to travel.
Ploughing and weeding homework department 5, as Fig. 3, Fig. 4 and shown in Figure 7, have and be used for just changeing the positive rotation mechanism 79 of the ploughing and weeding pawl that drives ploughing and weeding pawl 14 and be used to reverse the ploughing and weeding pawl reversing gearbox 80 that drives ploughing and weeding pawl 14, by the positive rotation mechanism 79 of ploughing and weeding pawl the ploughing and weeding pawl 14 of left and right sides Outboard Sections is just being changeed, by ploughing and weeding pawl reversing gearbox 80 the ploughing and weeding pawl 14 of middle body is reversed, expeditiously the ploughing and weeding field.
The positive rotation mechanism 79 of ploughing and weeding pawl, the tilling shaft 13 of width extension is to the left and right rotated on the bottom of the ploughing and weeding homework department side case constituting body 29 that freely is bearing in gearbox 2, at the central portion of this tilling shaft 13 the just commentaries on classics ploughing and weeding driven gear 81 of ploughing and weeding with driving chain 59 of having reeled is installed, pawl carrying cylinder 82,83 cylindraceous is installed on the both ends, the left and right sides of tilling shaft 13 simultaneously, on the peripheral part of this pawl carrying cylinder 82,83, the ploughing and weeding pawl 14 of just migrating freely is installed to the radial direction loading and unloading.84 is carriages among the figure, the 85th, and fixed-use bolt and nut.
Ploughing and weeding pawl reversing gearbox 80, keep certain intervals ground to rotate at upper edge, the bottom tilling shaft 13 of the ploughing and weeding homework department side case constituting body 29 of gearbox 2 and freely support the reversing shaft 86 of width extension to the left and right, the reverse ploughing and weeding driven gear 87 of ploughing and weeding with driving chain 59 of having reeled is installed on this reversing shaft 86, the middle driven wheel 88 of pair of right and left is installed on the both ends, the left and right sides of this reverse ploughing and weeding driven gear 87,89, and on tilling shaft 13, rotate the reverse pawl axle 90 of the chimeric pair of right and left of freely moving about, 91, reverse pawl axle 90 at this, driven gear 92 in the middle of installing respectively on 91 the inboard peripheral part, 93, this centre driven gear 92,93 with above-mentioned in the middle of driven wheel 88,89 engagements.Have again, the chimeric pawl carrying cylinder 94,95 cylindraceous of width freedom of movement ground spline to the left and right respectively on the outside peripheral part that reverses pawl axle 90,91 is freely installed the ploughing and weeding pawl 14 that reverses usefulness towards the radial direction loading and unloading on the peripheral part of this carrying cylinder 94,95.96 is carriages among the figure, the 97th, and fixed-use bolt and nut, the 98th, tightener sheave.
At this, pawl carrying cylinder 94,95 be positioned at ploughing and weeding pawl 14 under on the position and with to reverse pawl axle 90,91 splines chimeric.That is, prolong at the spline that forms on the peripheral part of reversing shaft 90,91 99 be set to ploughing and weeding pawl 14 under on the position.For this reason, can prevent to reverse the loosening of pawl axle 90,91 and topple over, the ploughing and weeding operation that can be well on by ploughing and weeding pawl 14.
In addition, since the spline 99 that reverses pawl axle 90,91 prolong be set to ploughing and weeding pawl 14 under on the position, so, also side prolongation setting outside body of pawl carrying cylinder 94,95, accompany therewith, the ploughing and weeding pawl 14 of just migrating also is configured on the location of the body outside, but the pawl of the top ends of the ploughing and weeding pawl 14 of just migrating is offset to the body inboard, can carry out good ploughing and weeding operation.
In the present invention, make the driving shaft of gearbox and the output shaft of prime mover link linkage by gear, owing on the driving shaft of this gearbox, link the tilling shaft that linkage is used to drive the axletree of the portion of travelling and is used to drive ploughing and weeding homework department respectively, so the transmission of power of prime mover is to the driving shaft of gearbox, afterwards, be directly delivered to from a driving shaft of gearbox on the tilling shaft of the axletree of the portion of travelling and ploughing and weeding homework department, can simplify the structure of transmission of power, the assembling operation and the maintainability of gearbox can be improved, the miniaturization and the lightweight of gearbox and small-sized tiller can be realized simultaneously.
In addition, because configuration driven axle on the bend of gearbox, and on the anterior position of this driving shaft, dispose gear, therefore can reduce the height of gearbox, and the overall height of reduction small-sized tiller, the miniaturization and the lightweight of small-sized tiller can be realized, riding stability can be improved because position of centre of gravity descends simultaneously.
In addition, since gearbox bend to the portion of the travelling side case constituting body that extends with low early and high after heeling condition that begins from bend and from bend begin before the ploughing and weeding homework department side case constituting body that extends of the low heeling condition in high back and keep angle greater than the right angle, therefore, can reduce the height of gearbox, can reduce the height of small-sized tiller, the miniaturization and the lightweight of small-sized tiller can be sought, simultaneously, the stability of travelling can be improved because position of centre of gravity descends.
Claims (1)
1. the transmission of power of a small-sized tiller is constructed, and binding is seen from the side and bent to the roughly gearbox and the interlock with it of ヘ font on prime mover, and dispose the portion of travelling in the front portion of this gearbox, the while is disposed ploughing and weeding homework department at the rear portion of gearbox, it is characterized in that,
On the output shaft of prime mover, link the driving shaft of gearbox and interlock with it by gear, binding is used to drive the axletree of the portion of travelling and be used to drive the tilling shaft of ploughing and weeding homework department and link respectively on the driving shaft of this gearbox, and the driving shaft of the power of prime mover from gearbox is delivered in the portion of travelling and the ploughing and weeding homework department;
See configuration driven axle on the bend that is bent to the gearbox of ヘ font roughly from the side, and on the anterior position of this driving shaft, disposing gear;
See from the side the gearbox that is bent to ヘ font roughly begin by the portion of the travelling side case constituting body that begins from bend to extend with from bend with low early and high after heeling condition before the ploughing and weeding homework department side case constituting body of the low heeling condition extension in high back constitute, be bent to greater than the angle at right angle and keep;
In the bottom of the above-mentioned portion's side case constituting body that travels configuration axletree, this axletree is made of the left and right sides axletree that rotates the pair of right and left on the bottom, the left and right sides that freely is bearing in the portion's side case constituting body that travels;
Between the left and right sides axletree, be folded with differential gear train, this differential gear train is provided with the differential synchro structure, this differential synchro structure, on the interior perimembranous of the driven gear that travels, vacate the compartment of terrain protrusion in a circumferential direction the lock pawl is set, the differential kinetoplast of doing synchronously that closes of the chimeric and above-mentioned locking claw clip of width freedom of movement ground spline to the left and right on the middle part of left side axletree simultaneously, the top ends of fitting operation arm on this differential peripheral part of making kinetoplast synchronously, the base end part of this motion arm is installed on the middle part of hook stick, fitting operation bar on the top ends of this hook stick, wherein, but the hook stick move left and right be mounted freely on the gearbox.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP241733/2000 | 2000-08-09 | ||
| JP241733/00 | 2000-08-09 | ||
| JP2000241733A JP2002052945A (en) | 2000-08-09 | 2000-08-09 | Power transmission structure for compact tiller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1454049A CN1454049A (en) | 2003-11-05 |
| CN1259813C true CN1259813C (en) | 2006-06-21 |
Family
ID=18732880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008197997A Expired - Fee Related CN1259813C (en) | 2000-08-09 | 2000-12-18 | Power transmission structure for small tillers |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2002052945A (en) |
| KR (1) | KR100722485B1 (en) |
| CN (1) | CN1259813C (en) |
| WO (1) | WO2002011519A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004224138A (en) * | 2003-01-21 | 2004-08-12 | Honda Motor Co Ltd | Transmission for working machine |
| JP5038342B2 (en) * | 2009-02-18 | 2012-10-03 | 株式会社クボタ | Working machine |
| CN103814635A (en) * | 2009-12-23 | 2014-05-28 | 隆鑫通用动力股份有限公司 | Mounting structure of tilling cutter of mini tiller |
| CN102720804B (en) * | 2012-06-19 | 2014-09-24 | 陈相贤 | Forward plowing/backward rolling independent-drive variable-speed steel plate gearbox assembly for micro-farming machine |
| CN103283322B (en) * | 2013-05-02 | 2015-08-26 | 浙江亚特电器有限公司 | A kind of rotovator |
| CN105052263A (en) * | 2015-09-09 | 2015-11-18 | 陈爱明 | Ditcher |
| CN105922865B (en) * | 2016-05-20 | 2018-07-10 | 山东润沣农业机械有限公司 | A kind of multifunctional agricultural working truck |
| CN106717159B (en) * | 2016-12-30 | 2018-12-28 | 重庆市永川区望城机械厂 | Multifunctional small tiller |
| KR102630126B1 (en) | 2023-02-27 | 2024-01-29 | 주식회사 넥스트앤코 | Differential module system applied to cultivators |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2491892A (en) * | 1944-11-29 | 1949-12-20 | Walter E Claus | Rotary soil tiller |
| JPH0811501B2 (en) * | 1986-04-04 | 1996-02-07 | 三菱農機株式会社 | Speed change operation device in tiller |
| JPS6393627A (en) * | 1986-10-06 | 1988-04-23 | Honda Motor Co Ltd | Cultivator |
| JPH07309145A (en) * | 1994-05-17 | 1995-11-28 | Honda Motor Co Ltd | Transmission disposing structure in working vehicle |
| JP3089279B2 (en) * | 1995-05-24 | 2000-09-18 | ヤンマー農機株式会社 | Farm work machine |
-
2000
- 2000-08-09 JP JP2000241733A patent/JP2002052945A/en active Pending
- 2000-12-18 CN CNB008197997A patent/CN1259813C/en not_active Expired - Fee Related
- 2000-12-18 WO PCT/JP2000/008979 patent/WO2002011519A1/en active Application Filing
- 2000-12-18 KR KR1020037001686A patent/KR100722485B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100722485B1 (en) | 2007-05-29 |
| WO2002011519A1 (en) | 2002-02-14 |
| JP2002052945A (en) | 2002-02-19 |
| KR20030023737A (en) | 2003-03-19 |
| CN1454049A (en) | 2003-11-05 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Owner name: YANMAR CO., LTD. Free format text: FORMER OWNER: YANMAR AGRICULT EQUIP Effective date: 20100406 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100406 Address after: Osaka Japan Patentee after: Yanmar Co., Ltd. Address before: Osaka Japan Patentee before: Yanmar Agricultural Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060621 Termination date: 20181218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |