CN206402646U - Multifunctional small tiller - Google Patents

Abstract

It is specially a kind of multifunctional small tiller that the utility model, which is related to a kind of small-sized farming equipment, including frame, engine, power transmission mechanism, Quick Release bindiny mechanism and steering mechanism, the power transmission mechanism includes housing, clutch, walking transmission mechanism and operation transmission mechanism in housing, Quick Release bindiny mechanism, including fixed seat, flange head and latch.The utility model is intended to provide a kind of mini-tiller with a variety of functions.

Description

Multifunctional small tiller

Technical field

The utility model is related to a kind of small-sized farming equipment, specially a kind of multifunctional small tiller.

Background technology

Mini-tiller is a kind of conventional tillage implement in current farm equipment field, and agricultural is substantially increased using mini-tiller The production efficiency of production, therefore the use of mini-tiller is more and more extensive.Mini-tiller includes mobile device and cultivating apparatus, wherein The mobile device of mini-tiller and other agricultural equipments can be used with general, traditional mini-tiller mobile device and cultivating apparatus Connection is integrated, its mobile device, which is difficult to be connected with miscellaneous equipment, to be used, and can only be carried out single arable land, carried out agricultural During production, it is often necessary to which many set agricultural equipment of band could meet demand, more exchange device trouble, influence production efficiency.

Utility model content

The utility model is intended to provide a kind of mini-tiller with a variety of functions.

The utility model provides base case：Multifunctional small tiller, including it is frame, engine, power transmission mechanism, fast Tear bindiny mechanism and steering mechanism open, the power transmission mechanism includes housing, clutch, walking transmission in housing Mechanism and operation transmission mechanism, the walking transmission mechanism and operation transmission mechanism are connected by Quick Release bindiny mechanism, the row Walk the first power transmission shaft, second driving shaft, reversing shaft and output shaft of walking that transmission mechanism includes be connected with housing into rotation, described the One power transmission shaft, second driving shaft and reversing shaft be arranged in parallel, and the walking output shaft is vertical with second driving shaft, the clutch The output shaft of engine is connected with first power transmission shaft one end；

The first power transmission shaft other end is fixedly connected with one grade of driving gear and two grades of driving gears, second transmission Being rotatably connected to that key on the first speed driven gear engaged all the time with one grade of driving gear, second driving shaft is connected with axle can be The gearshift tooth set slided on two power transmission shafts, gearshift tooth, which is put, is fixed with two grades of driven gears and reverse gear driven gear, tooth set of shifting gears Mutually engageable engaging tooth is provided with the opposite end of first speed driven gear；Output gear one is fixed with the reversing shaft and is fallen Shelves driving gear, output gear one is engaged with one grade of driving gear or two grades of driving gears, and reverse gear driven gear can be with reverse gear Driving gear is engaged；

Quick Release bindiny mechanism, including fixed seat, flange head and latch, the fixed seat are provided with through hole, the flange head End stretch into the through hole of fixed seat and fixed by the latch, in addition to drive mechanism and transmission mechanism, drive mechanism It is rotatably connected in fixed seat, the transmission mechanism is rotatably connected in flange head, the drive mechanism and transmission mechanism are removable Connection is unloaded, the drive mechanism connects walking transmission mechanism, and the transmission mechanism connects walking transmission mechanism,

Drive mechanism includes drive shaft and connection actuating sleeve on the driving shaft, the transmission mechanism include power transmission shaft with And it is connected to the limit being equipped with the drive sleeve on power transmission shaft, the actuating sleeve and drive sleeve for mutually circumference to be spacing and coordinates Position portion.

Operation principle：The output shaft of engine is connected by clutch with the first power transmission shaft, and when clutch is combined, engine will Drive the first drive axis.When gearshift tooth set is engaged with first speed driven gear, two grades of driven gears and two grades of driving gears take off From engagement, then first speed driven gear will be by tooth set drive second driving shaft rotation of shifting gears, then output shaft of walking is with one grade of output； When gearshift tooth set is disengaged from first speed driven gear, two grades of driven gears are engaged with two grades of driving gears, then two grades of driven tooths Wheel will drive second driving shaft to rotate by tooth set of shifting gears, then output shaft of walking is with two grades of outputs；When gearshift tooth set with one grade from Moving gear is disengaged from, and two grades of driven gears are disengaged from two grades of driving gears, then output shaft of walking is in neutral state；When Reverse driving gear is engaged with reverse gear driven gear, then reverse gear driven gear drives second driving shaft to rotate by tooth set of shifting gears, Then walking output shaft is exported with reverse gear.From the foregoing, walking transmission mechanism has four gears, respectively one grade, two grades, sky Shelves and reverse gear；One grade and two grades be drive shift, i.e. mini-tiller using one grade or two grades work when, along the direction of travel of mini-tiller, Walking mechanism is in the front of Working mechanism；When mini-tiller is worked using reverse gear, along the direction of travel of mini-tiller, walking mechanism is being made The rear of industry mechanism, and operating personnel are typically located at Working mechanism side, therefore a reverse gear more at a slow speed is only set, it can prevent Only mini-tiller walking is too fast during backward, the cutter injury operating personnel in Working mechanism.

Transmission mechanism and driving structure are arranged to dismountable structure, and are separately mounted in flange head and fixed seat, when When mounting and dismounting flange head, fixed seat, transmission mechanism, drive mechanism can simultaneously be mounted and dismounted, it is simple and quick, Substantially increase the efficiency of mini-tiller equipment replacing.Drive shaft and power transmission shaft are mutual by the cooperation of actuating sleeve and drive sleeve Connection, the circumferential limiting section using actuating sleeve and drive sleeve is mutually spacing, and being rapidly separated for drive shaft and power transmission shaft can be achieved.

Compared with prior art, the advantage of this programme is：（One）The row of mini-tiller can be changed by walking transmission mechanism Walk speed and direction.

（Two）Quick Release bindiny mechanism causes walking transmission mechanism and operation transmission mechanism to depart from.

（Three）The walking transmission mechanism that coordinating Quick Release bindiny mechanism can enable connects various operation transmission mechanisms, for example, plough Knife, film laying, fertilising, rice transplanting etc..The speed of travel and walking side can be adjusted according to different work, walking transmission mechanism To the actual conditions for adapting to this kind of operation.

（Four）Due to this programme functional diversities, but cost is relatively low.

Scheme two：Based on scheme it is preferred, the operation transmission mechanism include commutation portion, gear shift portion, reduction part and With the operation output shaft parallel to the first power transmission shaft；The power that the commutation portion includes being mutually perpendicular to and being connected with housing into rotation is defeated Enter axle and power transmission shaft, power input shaft one end is connected with Quick Release bindiny mechanism, and the power input shaft other end is fixed with input Bevel gear, the two ends of the power transmission shaft are rotatably connected to the Intermediate bevel gears engaged with input bevel gear, and power is passed The middle part key of power axle is connected with the engaging sleeve two that can be slided on power transmission shaft, and the small end of Intermediate bevel gears is provided with can be with engaging The engaging tooth of the engagement of set two；The reduction part idler gear and the deceleration output gear engaged with idler gear, the gear shift portion The moment of torsion of power transmission shaft is delivered to idler gear, and gear shift portion can change the rotating speed of deceleration output gear.

Beneficial effect：Operation transmission mechanism can realize main story and the reversion of Working mechanism cutter, make operation more flexible.Operation When the power input shaft in transmission mechanism commutation portion is rotated, input bevel gear will drive Intermediate bevel gears to rotate, due to middle cone tooth Wheel is located at the both sides of input bevel gear respectively, therefore the steering of two Intermediate bevel gears is opposite；Engaging sleeve two is stirred by shift fork, made Engaging sleeve two is combined from different Intermediate bevel gears, then the steering that can change the steering of engaging sleeve two, i.e. power transmission shaft changes, So that the steering of reduction part deceleration output gear changes.The power of Working mechanism is exported by reduction part, and reduction part is dynamic Power is inputted through tumbler gear, therefore can change the steering of cutter in Working mechanism by the steering for changing tumbler gear.In addition Can export the rotating speed that deceleration output gear can also be different by gear shift portion.

Scheme three：Based on scheme it is preferred, the limiting section is spline tooth, and the actuating sleeve is fixedly connected on drive shaft On, the drive sleeve is slidably connected on power transmission shaft, is fixedly connected with stop collar on power transmission shaft, the drive sleeve and stop collar it Between be connected with support spring, be socketed between the drive sleeve and power transmission shaft for spline and gap coordinate, the drive shaft and driving It is socketed and is interference fitted for spline between set.

Beneficial effect：The number of teeth of spline tooth is more, and the circumferential strong point is more, can improve the stability of transmission.Support spring Support drive sleeve is pushed against to stop collar, makes even closer, gapless of being fitted between stop collar and drive sleeve, improves the stabilization of transmission Property.Realized using spline circumferential spacing, gap, which coordinates, ensure that and is slidably connected between drive sleeve and power transmission shaft, be interference fitted Being fixedly connected between drive shaft and actuating sleeve is ensure that, spline builds connection compared to common, and its strong point increases, and connection is more Firmly, stably, and the concentration of stress is reduced.

Scheme four：For the preferred of scheme three, in addition to clutch, the clutch includes being rotatably connected on fixed seat On attacker, one end of the attacker and drive sleeve offset, and the other end of attacker is connected with bracing wire.

Beneficial effect：Attacker is pulled to rotate by bracing wire, attacker pulls drive sleeve and slided to depart from actuating sleeve, so as to realize Being rapidly separated for power transmission shaft and drive shaft, disconnects transmission.

Scheme five：For the preferred of scheme four, the fixed seat is provided with mounting hole, and latch is inserted in mounting hole and outside latch Wall is exposed in the through hole of fixed seat, and the outer wall being exposed on the latch in through hole is provided with the first deep-slotted chip breaker；On flange head outer wall It is provided with second deep-slotted chip breaker corresponding with the deep-slotted chip breaker, the latch stretches out mounting hole through mounting hole and end, latch is stretched Go out to hold and be fixedly connected with limiting plate on the nut being threaded with for axial limiting, the latch, the limiting plate is provided with Ball recess, the fixed seat is provided with blind hole, blind hole and is provided with limit spring and spacing ball from bottom to up.

Beneficial effect：By rotating latch to adjust the position of the first deep-slotted chip breaker, when the position dorsad of the first deep-slotted chip breaker When two deep-slotted chip breakers are overlapped, plug wire is located in the second deep-slotted chip breaker, realizes the spacing of flange head, flange head and fixed seat can not be separated； When the first deep-slotted chip breaker and the second deep-slotted chip breaker are overlapped, flange head departs from the spacing of latch, enables flange head and fixed seat light Separation, realizes dismounting, and the structure operation is efficient and convenient, spacing accurate.Spacing ball is supported under the support of limit spring to limiting plate Tightly, when rotating latch to ball recess and spacing ball coincidence, certain positioning action can be played to latch, prevents latch from turning It is dynamic.

Scheme six：For the preferred of scheme two, the second driving shaft is provided with five annular grooves, the section of annular groove To be semi-circular, the inside of the gearshift tooth set, which is provided with blind hole, blind hole, is provided with spring and steel ball, and spring is by steel ball top pressure second On power transmission shaft.

Beneficial effect：When gearshift tooth be enclosed on second driving shaft slide, and blind hole just correspond to groove after, steel ball will be embedding Enter in annular groove, so as to have certain positioning action to gearshift tooth set, can prevent operation output shaft from being exported with each gear When, gearshift tooth set play.

Scheme seven：For the preferred of scheme six, third speed drive gear and operation output gear, institute are fixed with operation output shaft State and output gear two be fixed with reversing shaft, third speed drive gear can be engaged with reverse gear driven gear, operation output gear with it is defeated Go out the engagement of gear two.Beneficial effect：A high gear is added, so as to make during only walking mechanism work, mini-tiller can With higher rotating speed walking, can quickly be arrived under bare place state from mini-tiller can be conducive to.

Scheme eight：Based on scheme or scheme five or scheme four it is preferred, the steering mechanism includes armrest seat, helped Hand support arm, arm-rest frame and mill tooth assembly, one end connection armrest seat of handrail support arm, the other end connection handrail of handrail support arm Frame, the handrail support arm is connected with the armrest seat by mill tooth assembly；The mill tooth assembly is included on intermeshing Mill tooth and lower millstone tooth, the upper millstone tooth are fixedly connected with the handrail support arm, the lower millstone tooth and the armrest seat It is fixedly connected, the upper millstone tooth has ring-type with being provided with through hole, the upper millstone tooth in the middle part of lower millstone tooth with lower millstone between cog The first locking member is provided between space, armrest seat and the handrail support arm, first locking member sequentially passes through armrest seat, lower mill Disk tooth through hole, the through hole of upper millstone tooth and handrail support arm simultaneously adjust elastic between the armrest seat and the handrail support arm, Also include centring sleeve, the centring sleeve is located in the annular spaces of mill tooth group, the centring sleeve is hollow and annular, the centering The outer wall of the first locking member is sheathed on, the centring sleeve is adapted with annular spaces.

Beneficial effect：Handrail support arm is with being separately fabricated in arm-rest frame technique, and armrest seat is that handrail support arm connects mini-tiller Connection pedestal, armrest seat and handrail support arm are connected by mill tooth assembly, can when mill tooth assembly is tightened under external force With stable fixed armrest seat and handrail support arm, when removing external force, the upper and lower mill tooth in mill tooth assembly can be separated from each other, Now handrail support arm can rotate relative to armrest seat.Upper millstone tooth is used with lower millstone tooth in the prior art as mentioned in background Punch forming is processed, and enterprise considers there is annular spaces between mill tooth assembly from cost of manufacture and difficulty of processing angle.On Mill tooth is that the first locking member reserves installation site with being provided with through hole, through hole in the middle part of lower millstone tooth.First locking member has flexible Function can be by the function of the Distance Shortened between upper millstone and lower millstone.First locking member is also as handrail support arm and upper millstone tooth spiral Axis when turning.Space between centring sleeve filling mill tooth assembly, makes mill tooth assembly structure more stable.Centring sleeve is upper mill Axis when disk tooth is separated with lower millstone tooth.When lifting upper millstone tooth, upper millstone tooth is vertically slidable using centring sleeve outer wall as axle, no Meeting run-off the straight during lifting, upper millstone tooth can be kept completely separate with lower millstone tooth.Upper millstone tooth and lower millstone tooth energy phase To being freely rotatable.

Scheme nine is preferred for scheme eight, and the centring sleeve bottom has in limit base, the lower millstone tooth and had and limit The adaptable annular inner fovea part of position seat shape.

Beneficial effect：Centring sleeve may together be lifted when rotating upper millstone tooth, limit is set in the bottom of centring sleeve Position seat makes the annular inner fovea part of its insertion, centring sleeve is fixed together with lower millstone and avoids centring sleeve from being raised influence centering effect Really.

Scheme ten is preferred for scheme eight, and the handrail branch vertically installed is rotatably connected in the middle part of the armrest seat upper end Armrest seat on the outside of limiting plate, handrail support arm is fixed with arm, handrail support arm it is provided with via, via and is equipped with vertical installation Depression bar, the top of depression bar is fixed with pressing plate, and the bottom of depression bar is fixed with briquetting, is arranged on the depression bar between pressing plate and armrest seat Flexible return unit；Gear shift piece is rotatably connected on the side wall of housing, gear shift piece is located at the lower section of depression bar, gearshift piece and gearshift tooth Cover clamping.

Beneficial effect：Gear shift tooth, which is enclosed on, to be slided on line shaft with the different gear of correspondence, and gear shift piece is rotatably connected on gear shift It is connected on case and with gearshift tooth set, the different gear of the different rotational angle correspondence mini-tiller of gear shift piece, piece of so shifting gears is rotated When adjustable gearshift tooth be enclosed on position on line shaft, so as to change gear.It is normal in use, limiting plate on handrail support arm Depart from pressing plate, the briquetting of depression bar lower end is hanging in the presence of dynamic clamping head and quiet clamping head, and gear shift piece can be at the corresponding angle of whole gears Rotated in the range of degree, realize the top gear of mini-tiller to the regulation of reverse gear.Need to commutate in use, with armrest seat in mini-tiller Rotary handle support arm is to adapt to operation centered on portion, and armrest seat provides support and certralizing ability for handrail support arm.Handrail support arm turns Limiting plate is also and then rotated when dynamic, and pressing plate is pressed downward by handrail support arm when rotating, and handrail support arm is gone to behind the position of needs and is limited Position plate gear prevents depression bar resilience in the upper end of pressing plate, and the lower end of depression bar is kept off in the top of gear shift piece through armrest seat, limits gear shift The scope of activities of piece, when handrail support arm Rotation With Changing backward, depression bar limits the slewing area of gear shift piece, makes gear shift piece can only be solid Rotated in fixed angular range so that moved between the gear positions that gear shift tooth set can only be fixed on line shaft, realize gear Limitation so that mini-tiller commutation after gear be restricted, it is possible to achieve after commutation only low-grade location work, reduce after commutation The security risk that high tap position work can be brought.When commutating again, handrail support arm returns to normal condition, and limiting plate departs from pressure Plate, pressing plate, by upward jack-up, drives depression bar and briquetting to move up, briquetting is not in the presence of the recovery deformation of dynamic clamping head and quiet clamping head The scope of activities of gear shift piece is limited again, and gear shift piece can change in top gear between reverse gear again.Can so have by this programme The transforming gear that mini-tiller is controlled according to actual use situation of effect, particularly can limit mini-tiller when commutation is used and be in Underdrive operating state, mini-tiller uses safer.

Brief description of the drawings

Fig. 1 is the structural representation of power transmission mechanism in the utility model multifunctional small tiller embodiment.

Fig. 2 is Fig. 1 sectional view.

The structural representation of Quick Release bindiny mechanism in Fig. 3 the utility model multifunctional small tiller embodiments.

Fig. 4 is Fig. 3 sectional view.

Fig. 5 is Fig. 3 detaching structure schematic diagram.

Fig. 6 is the structural representation of steering mechanism in utility model multifunctional small tiller embodiment.

Fig. 7 is the structural representation of steering mechanism in utility model multifunctional small tiller embodiment.

Embodiment

The utility model is described in further detail below by embodiment：

Multifunctional small tiller, including frame, engine, power transmission mechanism, Quick Release bindiny mechanism and steering mechanism,

Power transmission mechanism includes the first housing, the second housing, cone clutch 11, walking transmission as shown in Figures 1 and 2 Mechanism and operation transmission mechanism；First housing and the second housing are connected by ring flange, and walking transmission mechanism is located at the first housing Interior, operation transmission mechanism is in second shell body, and walking transmission mechanism is connected with operation transmission mechanism by Quick Release bindiny mechanism.

Walking mechanism includes horizontally disposed first power transmission shaft 1201, second driving shaft 1202, the and of operation output shaft 1204 Reversing shaft, and the walking output shaft 1206 being vertically arranged, the first power transmission shaft 1201, second driving shaft 1202, walking output shaft 1206 and reversing shaft be connected with the first housing into rotation, and the first power transmission shaft 1201 and operation output shaft 1204 are coaxial, and second is defeated Shaft is parallel with the first output shaft.Cone clutch 11 connects the output shaft of the left end of the first power transmission shaft 1201 and engine, And the taper of cone clutch 11 is 8o；The left end of operation output shaft 1204 inserts the right-hand member of the first output shaft, and operation is exported Axle 1204 is rotated with the first power transmission shaft 1201 and is connected, so as to reduce the locating distance of the first power transmission shaft 1201 and operation power transmission shaft From.The left end of second driving shaft 1202 is provided with the integrally formed bevel pinion of second driving shaft 1202, output shaft 1206 of walking Upper end key be connected with bevel gear wheel, bevel pinion and auger engagement, second driving shaft 1202 pass through intermeshing small bevel gear Wheel and bevel gear wheel drive walking output shaft 1206 to rotate, so as to output power.First power transmission shaft 1201 is provided with one grade of master Moving gear 1211 and two grades of driving gears 1212, second driving shaft 1202 are provided with first speed driven gear 1210, two grades of driven tooths Wheel 1209 and reverse gear driven gear 1208.Output gear 1, reverse driving gear 1214 and output are fixed with reversing shaft Gear 2 1213；Operation output shaft 1204 is provided with third speed drive gear 1205 and operation output gear.

One grade of driving gear 1211 and two grades of driving gears 1212 are integrally formed with the first power transmission shaft 1201, and one grade driven Gear 1210 is rotatably connected on second driving shaft 1202, and one grade of driving gear 1211 is nibbled with first speed driven gear 1210 all the time Close.The upper spline of second driving shaft 1202 is connected with gearshift tooth set, and two grades of driven gears 1209 and reverse gear driven gear 1208 are with changing Gear tooth set is integrally formed, and is slided by setting shift fork i.e. shift-variable tooth to be enclosed on second driving shaft 1202.First speed driven gear 1210 opposite ends covered with gearshift tooth are provided with mutually engageable engaging tooth；When first speed driven gear 1210 and two grades of driven gears During 1209 engaging tooth engagement, two grades of driven gears 1209 and two grades of driving gears 1212 will be disengaged from engagement, so that one grade Driven gear 1210 drives gearshift tooth set to rotate, so as to drive second driving shaft 1202 to rotate, walking output shaft 1206 is with one grade Output.When two grades of driven gears 1209 and two grades of driving gears 1212 are in engagement, first speed driven gear 1210 and change The engaging tooth of gear tooth set is disengaged from state, then two grades of driving gears 1212 drive two grades of driven gears 1209 to rotate, so that band Dynamic second driving shaft 1202 is rotated, and walking output shaft 1206 is with two grades of outputs.

Output gear 1 on reversing shaft is engaged all the time with two grades of driving gears 1212, so that the first power transmission shaft 1201 Reversing shaft is driven to rotate；Output gear 2 1213 is engaged all the time with operation output gear, so that reversing shaft drives operation defeated all the time Shaft 1204 is rotated.Sliding gearshift tooth set makes third speed drive gear 1205 be engaged with reverse gear driven gear 1208, then operation is exported Axle 1204 drives second driving shaft 1202 to rotate, and walking output shaft 1206 is exported with third gear.Continuing slip gearshift tooth set makes two grades Driven gear 1209 and reverse gear driven gear 1208 are not engaged with any gear, then output shaft 1206 of walking is in neutral gear shape State.Sliding gearshift tooth set makes reverse gear driven gear 1208 be engaged with reverse driving gear 1214, then reversing shaft drives second to be driven Axle 1202 is rotated, and walking output shaft 1206 is exported with reverse gear.

In the present embodiment, operation output shaft 1204 can be exported with one grade, two grades, third gear, five gears of neutral gear and reverse gear, And accordingly provided with five annular grooves on second driving shaft 1202, the section of annular groove is semi-circular；It is interior that tooth of shifting gears covers Portion, which is provided with blind hole, blind hole, is provided with spring and steel ball, and spring is by steel ball top pressure on second driving shaft 1202.When gearshift tooth is enclosed on Slided on second driving shaft 1202, and blind hole is just corresponded to and after groove, steel ball will be in embedded annular groove, so as to gearshift tooth Set has certain positioning action, when can prevent that operation output shaft 1204 from being exported with each gear, gearshift tooth set play.

Operation transmission mechanism includes commutation portion, gear shift portion and reduction part.Commutation portion includes power input shaft 141 and power is passed Pass axle 142, power input shaft 141 is mutually perpendicular to power transmission shaft 142, and power input shaft 141 and power transmission shaft 142 with Second housing into rotation is connected.The right-hand member spline of power input shaft 141 is connected with input bevel gear 143, the two ends of power transmission shaft Intermediate bevel gears 144 are rotatably connected to, two Intermediate bevel gears 144 are engaged with input bevel gear 143；Intermediate bevel gears 144 Small end be provided with engaging tooth, the middle part spline of power transmission shaft 142 is connected with engaging sleeve 2 146, and engaging sleeve 2 146 can be dynamic Slided on power transmission shafr, by shift fork engaging sleeve 2 146 can be made to be combined with engaging tooth.One end of power transmission shaft also spline is connected There is the first tumbler gear 145, when engaging sleeve 2 146 is engaged from different Intermediate bevel gears 144, the first tumbler gear 145 Rotation direction is different.

In the present embodiment, bevel gear 143 and Intermediate bevel gears 144 are inputted for spiral bevel gear, and Intermediate bevel gears 144 Cone angle is 5~10o.

Gear shift portion includes the first selector shaft 151 and the second selector shaft 152 being connected with the second housing into rotation, the first gear shift tooth One end spline of wheel is connected with the second tumbler gear 153 engaged with the first tumbler gear 145, so as to the first tumbler gear 145 the first selector shafts 151 of drive are rotated.Spline is gone back on first selector shaft 151 and is connected with driving gear one and driving gear two, it is main Moving gear one and driving gear two are integrally formed, and can make driving gear one and driving gear two in the first selector shaft by shift fork Slided on 151.Second rotary shaft upper spline is connected with driven gear one and driven gear two, and driven gear one and driven gear Two fix with the second selector shaft 152；Driving gear one and driving gear two are slided by shift fork, can make driving gear one and by Moving gear one is engaged or driving gear two is engaged with driven gear two, when driving gear one and the engagement of driven gear one, and second The rotating speed of selector shaft 152 is one grade；When driving gear two and driven gear two are engaged, the rotating speed of the second selector shaft 152 is two Shelves.

Reduction part includes the first idler gear 161, the second idler gear 162 and the deceleration output gear 163 engaged successively, First idler gear 161 is engaged with driven gear two, and most power is exported from deceleration output gear 163 at last, so as to reach deceleration With the purpose of power output；And first idler gear 161, the second idler gear 162 and deceleration output gear 163 downward cloth successively Put, so that operation cutter reaches required terrain clearance.

Quick Release bindiny mechanism is main by 303 groups of fixed seat 301, flange head 302 and latch as shown in Fig. 3, Fig. 4 and Fig. 5 Into being provided with fixed seat 301 in through hole, through hole and be provided with drive mechanism, the logical of fixed seat 301 is stretched into the end of flange head 302 Fixed in hole by latch 303, transmission mechanism is installed in flange head 302, drive mechanism and transmission mechanism are detachably connected.

Drive mechanism is made up of drive shaft 304 and the actuating sleeve being connected in drive shaft 304 341, and transmission mechanism is by passing Moving axis 305 and the drive sleeve 351 being connected on power transmission shaft 305 are constituted, and being machined with actuating sleeve 341 and drive sleeve 351 is used for Mutually circumferential spacing limiting section.The concrete form of limiting section can be spline tooth, or ratchet, or other shapes The bulge-structure of formula.It is socketed between drive sleeve 351 and power transmission shaft 305 for spline and gap coordinates, is interference fitted on power transmission shaft 305 Support spring 306, the He of drive shaft 304 are connected between stop collar in limited location set, drive sleeve 351 and power transmission shaft 305 It is socketed and is interference fitted for spline between actuating sleeve 341.Realized using spline circumferential spacing, gap, which coordinates, ensure that transmission It is slidably connected between set 351 and power transmission shaft 305, interference fit ensure that the fixed company between drive shaft 304 and actuating sleeve 341 Connect, spline builds connection compared to common, and its strong point increases, connection more firmly, stably, and reduces the concentration of stress.Drive Moving axis 304 and power transmission shaft 305 are connected with each other by the cooperation of actuating sleeve 341 and drive sleeve 351, using actuating sleeve 341 and transmission The circumferential limiting section of set 351 is mutually spacing, and being rapidly separated for drive shaft 304 and power transmission shaft 305 can be achieved.Drive mechanism and transmission Clutch is installed, clutch has the attacker 307 being rotatably connected in fixed seat 301, one end of attacker 307 between mechanism Offseted with drive sleeve 351, the other end of attacker 307 is connected with bracing wire.Attacker 307 is pulled to rotate by bracing wire, attacker 307 pulls Drive sleeve 351 is slided to depart from actuating sleeve 341, so as to realize being rapidly separated for power transmission shaft 305 and drive shaft 304, disconnects transmission.

As shown in figure 5, being machined with mounting hole in fixed seat 301, latch 303 is inserted in mounting hole and the outer wall of latch 303 reveals In in the through hole of fixed seat 301, latch 303 is through mounting hole and mounting hole, the external part threaded connection of latch 303 are stretched out in end Have and be fixedly connected with limiting plate 332 on the nut 336 for axial limiting, the latch 303.It is exposed on latch 303 in through hole Outer wall be provided with the first deep-slotted chip breaker 333, the outer wall of flange head 302 is provided with second deep-slotted chip breaker 321 corresponding with the deep-slotted chip breaker. By rotating latch 303 to adjust the position of the first deep-slotted chip breaker 333, when position dorsad the second deep-slotted chip breaker of the first deep-slotted chip breaker 333 During 321 coincidence, plug wire is located in the second deep-slotted chip breaker 321, realizes the spacing of flange head 302, flange head 302 and the nothing of fixed seat 301 Method is separated；When the first deep-slotted chip breaker 333 and the second deep-slotted chip breaker 321 are overlapped, flange head 302 departs from the spacing of latch 303, makes flange First 302 and fixed seat 301 can easily separate, realize dismounting, the structure operation is efficient and convenient, it is spacing accurate.On limiting plate 332 Provided with ball recess, fixed seat 301 is provided with blind hole, blind hole and is provided with limit spring 335 and spacing ball 334 from bottom to up. Spacing ball 334 is pushed against under the support of limit spring 335 to limiting plate 332, when rotation latch 303 to ball recess and spacing ball During 334 coincidence, certain positioning action can be played to latch 303, prevents latch 303 from rotating.The upper end of latch 303 is provided with handle 331.It is easy to user to hold to take, the convenient latch 303 that swings manually is rotated.

The implementation process of the structure：During installation, latch 303 is rotated by handle 331, makes the first arc on latch 303 Groove 333 is towards in through hole, and the inner surface contour alignment of the first deep-slotted chip breaker 333 and through hole, latch 303 does not play position-limiting action now, will Flange head 302 carries transmission mechanism and inserted together in fixed seat 301, and the spline tooth alignment on actuating sleeve 341 and drive sleeve 351 is matched somebody with somebody Close.Latch 303 is rotated, by the first deep-slotted chip breaker 333 dorsad the second deep-slotted chip breaker 321, latch 303 coordinates in the second deep-slotted chip breaker 321 Progress is spacing, prevents flange head 302 from coming off.Latch 303 is when turning to restraining position, and spacing ball 334 just falls into limiting plate In spherical groove on 332, prevent latch 303 from rotating.When disassembly is desired, bracing wire is pulled, actuating sleeve 341 and drive sleeve are made in advance 351 depart from, and disconnect driving.Latch 303 is rotated, overlaps the first deep-slotted chip breaker 333 and the second deep-slotted chip breaker 321, flange head 302 departs from Latch 303 is spacing.

Steering mechanism as shown in Figure 6 include the armrest seat 410, handrail support arm 420, arm-rest frame 430 that are connected with mini-tiller with And mill tooth assembly 440, one end connection armrest seat 410 of handrail support arm 420, the other end connection arm-rest frame of handrail support arm 420 430, handrail support arm 420 is connected with armrest seat 410 by mill tooth assembly 440；Mill tooth assembly 440 is included on intermeshing Mill tooth 441 and lower millstone tooth 442, upper millstone tooth 441 are fixedly connected with handrail support arm 420, lower millstone tooth 442 and armrest seat 410 are fixedly connected, and upper millstone tooth 441 is provided with through hole with the middle part of lower millstone tooth 442, has between upper millstone tooth 441 and lower millstone tooth 442 There are annular spaces, the first locking member 411 is provided between armrest seat 410 and handrail support arm 420, the first locking member 411 is sequentially passed through Armrest seat 410, the through hole of lower millstone tooth 442, the through hole of upper millstone tooth 441 and handrail support arm 420, in addition to centring sleeve 443, Centring sleeve 443 is located in the annular spaces of mill tooth assembly, and centring sleeve 443 is hollow and annular, and centring sleeve 443 is sheathed on the first lock The outer wall of tight part 411, centring sleeve 443 is adapted with annular spaces.The bottom of centring sleeve 443 has limit base 4431, lower millstone tooth There is the annular inner fovea part being adapted with the shape of limit base 4431 in 442.Armrest seat 410 includes groove profile block 412 and template block 413, the back side and handrail support arm welding 420, the front of groove profile block 412 of groove profile block 412 are welded on template block 413, template block 413 are fixed in the frame of mini-tiller by bolt 4122.The side of groove profile block 412, which is provided with limiting through hole, limiting through hole, to be connected It is connected to caging bolt.Template block 413 has patchhole, and the first locking member 411 includes check lock lever 4111, lock sleeve 4113 and lock Tight first 4112, check lock lever 4111 has head and bar portion, and the diameter on head is integrally formed more than patchhole bar portion, the head end of bar portion Outer wall thread section, the inwall of locking head 4112 has the threaded portion being threadedly coupled with the thread segment of bar portion, lock sleeve 4113 Bottom is fixed on upper millstone tooth 441, and the top of lock sleeve 4113 passes through the locking through hole and and locking head of handrail support arm 420 4112 laminatings.Locking head 4112 is connected with handle.

Installation process：Centring sleeve 443 is put into the annular spaces of mill tooth assembly 440 before installing, and by centring sleeve 443 The insertion of limit base 4431 lower millstone tooth 442 annular inner fovea part in, check lock lever 4111 is passed through into patchhole, centring sleeve during installation 443rd, pasted with the lower surface of template block 413 on the locking through hole of lock sleeve 4113 and handrail support arm 420, the head of check lock lever 4111 Close, the bar portion of check lock lever 4111 is threadedly coupled with locking head 4112.The process of rotating handrail frame 430：When unscrewing locking head 4112, lift Arm-rest frame 430, handrail support arm 420 and the upper millstone tooth 441 being fixed together are acted, them are then rotated, centring sleeve 443 is fixed Upper millstone tooth 441 is limited on lower millstone tooth 442, it is that axle center is rotated with centring sleeve 443 to make upper millstone tooth 441.Rotate to Locking head 4112 is screwed again behind position, and mill tooth assembly is locked.

The template block being welded with handrail support arm as shown in Figure 7 on the outside of horizontal limiting plate 204, groove profile block was provided with Hole, groove profile block is welded with horizontal support plate 205 on the side wall of via, and support plate 205 is provided with the through hole with via coaxial line. The depression bar 206 vertically installed is equipped with via, the top of depression bar 206 provided with external screw thread and is fixed with pressing plate 207 by nut, The right side of the upper end of pressing plate 207 is integrally formed with location-plate 208, and the bottom of depression bar 206, which is screwed, briquetting 215, pressing plate 207 with Spring 209 is arranged with depression bar 206 between support plate 205.Support plate 205 on the outside of through hole, which is provided with pilot hole, pilot hole, to be worn Provided with the guide rod 210 vertically installed, the top of guide rod 210 is integrally formed on pressing plate 207, and guide plate bottom is screwed There is anticreep plate 211.Gear shift case 200 is equipped with rotatable shift bar 214 on the side wall of depression bar 206, and shift bar 214 is located at One end in gear shift case 200 is fixed with driving lever 216, and the free end of driving lever 216 is located at gearshift tooth and puts front gear 217 and backgear In neck 218 between 219, the one end of shift bar 214 outside gear shift case 200 is integrally formed with gear shift piece.Gear shift piece includes Vertically arranged pendulum 212, pendulum 212 is integrally formed with shift bar 214, the lower end of pendulum 212 integrally formed with catch 213, Catch 213 is located at the lower section of briquetting 215, and the one end of pendulum 212 away from shift bar 214 is fixed with draw ring.

In the present embodiment, during practical application, groove of the different gears of correspondence provided with annular on selector shaft, the axle of gear shift tooth set Hole wall, which is provided with the blind hole of radial direction, blind hole, is provided with positioning ball, and stage clip, gear shift tooth are provided between positioning ball and blind via bottom It is enclosed on and is slided on line shaft 220 with the different gear of correspondence, positioning ball ejection is enclosed on by line shaft to gear shift tooth by stage clip Position on 220 is positioned, and gear shift piece is rotatably connected on gear shift case 200 by gear level and by driving lever 216 and gearshift Tooth set connection, the different gear of the different rotational angle correspondence mini-tiller of gear shift piece, piece of so shifting gears passes through driving lever 216 when rotating Rotation promote gear shift tooth to be enclosed on line shaft 220 and move, you can regulation gearshift tooth is enclosed on the position on line shaft 220 so that Change gear.Normally in use, the limiting plate 204 on handrail support arm departs from pressing plate 207, the briquetting 215 of the lower end of depression bar 206 is in bullet Hanging in the presence of spring 209, gear shift piece can be rotated in the corresponding angular range of whole gears, realize the top gear of mini-tiller To the regulation of reverse gear.Mini-tiller need commutate in use, centered in the middle part of groove profile block rotary handle support arm with adapt to operation, Armrest seat provides support and certralizing ability for handrail support arm.Limiting plate 204 is also and then rotated when handrail support arm is rotated, handrail support arm Pressing plate 207 is pressed downward during rotation, the position rear position margining plate 204 for making handrail support arm go to needs keeps off the upper end in pressing plate 207, prevented The only resilience of depression bar 206, is positioned by location-plate 208 to limiting plate 204, by guide rod 210, support plate 205 to depression bar 206 It is oriented to, the lower end of depression bar 206 is kept off in the top of gear shift piece through armrest seat, briquetting 215 is pressed in the upper end limitation of catch 213 The scope of activities of gear shift piece, when handrail support arm Rotation With Changing backward, depression bar 206 limits the slewing area of gear shift piece, makes gear shift piece It can only be rotated in fixed angular range so that moved between the gear positions that gear shift tooth set can only be fixed on line shaft 220 It is dynamic, realize the limitation of gear so that gear is restricted after mini-tiller commutation, it is possible to achieve only worked after commutation in low-grade location, Now by connecting drag-line on draw ring, drag-line is pulled to adjust mini-tiller gear shift between 1,0 and -1 grade, when using always In low-grade or neutral gear, the security risk that high tap position work can be brought after commutation is reduced.When commutating again, handrail support arm is extensive Arrive normal condition again, limiting plate 204 departs from pressing plate 207, pressing plate 207 in the presence of spring 209 recovers deformation by upward jack-up, Depression bar 206 and briquetting 215 is driven to move up, briquetting 215 no longer limits the scope of activities of gear shift piece, by pulling on draw ring Drag-line causes gear shift piece to change again in top gear between reverse gear.

Claims (10)

1. multifunctional small tiller, including frame, engine, power transmission mechanism, Quick Release bindiny mechanism and steering mechanism,

Characterized in that,

The power transmission mechanism includes housing, clutch, walking transmission mechanism and operation transmission mechanism in housing, institute State walking transmission mechanism and operation transmission mechanism is connected by Quick Release bindiny mechanism, the walking transmission mechanism includes turning with housing The first power transmission shaft, second driving shaft, reversing shaft and the walking output shaft of dynamic connection, first power transmission shaft, second driving shaft and Reversing shaft be arranged in parallel, and the walking output shaft is vertical with second driving shaft, and the clutch is by the output shaft of engine and the One power transmission shaft one end is connected；

The first power transmission shaft other end is fixedly connected with one grade of driving gear and two grades of driving gears, the second driving shaft It is rotatably connected to key on the first speed driven gear engaged all the time with one grade of driving gear, second driving shaft and is connected with and can be passed second The gearshift tooth set slided on moving axis, gearshift tooth, which is put, is fixed with two grades of driven gears and reverse gear driven gear, gearshift tooth set and one The opposite end of shelves driven gear is provided with mutually engageable engaging tooth；Output gear one and reverse gear master are fixed with the reversing shaft Moving gear, output gear one is engaged with one grade of driving gear or two grades of driving gears, and reverse gear driven gear can be with reverse gear actively Gear is engaged；

Quick Release bindiny mechanism, including fixed seat, flange head and latch, the fixed seat are provided with through hole, the end of the flange head Portion is stretched into the through hole of fixed seat and fixed by the latch, in addition to drive mechanism and transmission mechanism, and drive mechanism is rotated It is connected in fixed seat, the transmission mechanism is rotatably connected in flange head, the drive mechanism and transmission mechanism detachably connect Connect, the drive mechanism connects walking transmission mechanism, the transmission mechanism connects walking transmission mechanism,

Drive mechanism includes the actuating sleeve of drive shaft and connection on the driving shaft, and the transmission mechanism includes power transmission shaft and company It is connected on and is equipped with the drive sleeve on power transmission shaft, the actuating sleeve and drive sleeve for mutually circumferential spacing and cooperation spacing Portion.

2. multifunctional small tiller according to claim 1, it is characterised in that：The operation transmission mechanism include commutation portion, Gear shift portion, reduction part and with the operation output shaft parallel to the first power transmission shaft；The commutation portion includes being mutually perpendicular to and and shell Body rotates the power input shaft and power transmission shaft of connection, and power input shaft one end is connected with Quick Release bindiny mechanism, power input The axle other end is fixed with input bevel gear, and the two ends of the power transmission shaft are rotatably connected to what is engaged with input bevel gear Intermediate bevel gears, the middle part key of power force transmission shaft is connected with the engaging sleeve two that can be slided on power transmission shaft, Intermediate bevel gears Small end be provided with the engaging tooth that can be engaged with engaging sleeve two；The reduction part idler gear and the deceleration engaged with idler gear are defeated Go out gear, the moment of torsion of power transmission shaft is delivered to idler gear by the gear shift portion, and gear shift portion can change deceleration output gear Rotating speed.

3. multifunctional small tiller according to claim 1, it is characterised in that：The limiting section is spline tooth, the driving Set is fixedly connected on the driving shaft, and the drive sleeve is slidably connected on power transmission shaft, and stop collar is fixedly connected with power transmission shaft, institute State and support spring is connected between drive sleeve and stop collar, be socketed between the drive sleeve and power transmission shaft for spline and gap is matched somebody with somebody Close, be socketed and be interference fitted for spline between the drive shaft and actuating sleeve.

4. multifunctional small tiller according to claim 3, it is characterised in that：Also include clutch, the clutch Including the attacker being rotatably connected in fixed seat, one end of the attacker and drive sleeve offset, and the other end of attacker is connected with drawing Line.

5. multifunctional small tiller according to claim 4, it is characterised in that：The fixed seat is provided with mounting hole, latch Insert in mounting hole and latch outer wall is exposed in the through hole of fixed seat, the outer wall being exposed on the latch in through hole is provided with first Deep-slotted chip breaker；Flange head outer wall is provided with second deep-slotted chip breaker corresponding with the deep-slotted chip breaker, and the latch passes through mounting hole and end Mounting hole is stretched out, the external part of latch is threaded with the nut for axial limiting, the latch and is fixedly connected with limited location Plate, the limiting plate is provided with ball recess, and the fixed seat is provided with blind hole, blind hole and is provided with limit spring from bottom to up And spacing ball.

6. multifunctional small tiller according to claim 2, it is characterised in that the second driving shaft is provided with five annulars Groove, the section of annular groove is semi-circular, and the inside of the gearshift tooth set, which is provided with blind hole, blind hole, is provided with spring and steel ball, Spring is by steel ball top pressure on second driving shaft.

7. multifunctional small tiller according to claim 6, it is characterised in that third gear driving tooth is fixed with operation output shaft Output gear two is fixed with wheel and operation output gear, the reversing shaft, third speed drive gear can be nibbled with reverse gear driven gear Close, operation output gear is engaged with output gear two.

8. the multifunctional small tiller according to claim 1 or 5 or 4, it is characterised in that：The steering mechanism includes handrail Seat, handrail support arm, arm-rest frame and mill tooth assembly, one end connection armrest seat of handrail support arm, the other end of handrail support arm connect Arm-rest frame is connect, the handrail support arm is connected with the armrest seat by mill tooth assembly；The mill tooth assembly includes mutually nibbling The upper millstone tooth of conjunction and lower millstone tooth, the upper millstone tooth are fixedly connected with the handrail support arm, the lower millstone tooth with it is described Armrest seat is fixedly connected, and the upper millstone tooth has with being provided with through hole, the upper millstone tooth in the middle part of lower millstone tooth with lower millstone between cog Have and the first locking member is provided between annular spaces, armrest seat and the handrail support arm, first locking member sequentially passes through handrail Seat, lower millstone tooth through hole, the through hole of upper millstone tooth and handrail support arm are simultaneously adjusted between the armrest seat and the handrail support arm Elastic, in addition to centring sleeve, the centring sleeve is located in the annular spaces of mill tooth group, and the centring sleeve is hollow and annular, The centring sleeve is sheathed on the outer wall of the first locking member, and the centring sleeve is adapted with annular spaces.

9. multifunctional small tiller according to claim 8, it is characterised in that：The centring sleeve bottom has limit base, institute Stating has the annular inner fovea part being adapted with limit base shape in lower millstone tooth.

10. multifunctional small tiller according to claim 8, it is characterised in that：The middle part of the armrest seat upper end, which is rotated, to be connected It is connected on the handrail support arm vertically installed, handrail support arm and is fixed with limiting plate, the armrest seat on the outside of handrail support arm is provided with via, The depression bar vertically installed is equipped with via, the top of depression bar is fixed with pressing plate, and the bottom of depression bar is fixed with briquetting, and pressing plate is with helping Dynamic clamping head and quiet clamping head is arranged with depression bar between hand seat；Gear shift piece is rotatably connected on the side wall of housing, gear shift piece is located at depression bar Lower section, gearshift piece with gearshift tooth set clamping.