A kind of multi-functional steering wheel tractor
Technical field
The present invention relates to a kind of tractor, is specifically that one kind has the multiple functions such as tractor, rotary cultivator, mini-tiller simultaneously
Small waist-folded formula steering wheel tractor, belong to technical field of agricultural machinery.
Background technology
In recent years, as the expansion of the allowance for purchasing agricultural machinery policy scope and the raising of standard, peasant purchase the positive of agricultural machinery
Property constantly increases, and increasing agricultural machinery has progressively come into field.In current agricultural machinery, steering wheel tractor, rotary cultivator,
Mini-tiller has relatively broad application in rural area.Steering wheel tractor is mainly used in agricultural transport, its handling and fortune
Defeated performance is more far better than hand tractor, and can be walked on most of town roads, thus is used in rural area
Rate is very high.And rotary cultivator and mini-tiller are mainly used in use of ploughing, harrow a field, there is certain seasonality, frequency of use does not include height, leaves unused
Time is longer, if individually purchasing the waste that can cause the means of production, also increases agricultural machinery acquisition cost, therefore it is desirable that will
Steering wheel tractor is improved, being capable of towing the head steering wheel tractor and dragging when needing to use rotary cultivator or mini-tiller
Card separation, using only one arm-rest frame of installation that tows the head, it is assembled into a rotary cultivator or mini-tiller uses, thus need not
Individually purchase again, alleviate the burden of peasant household.
Existing steering wheel tractor tow the head and drag between card various control circuits connection it is very complicated, it is necessary to dismounting
Parts are a lot, will tow the head and drag card to separate and install arm-rest frame, and at least need the time of one day, asked to solve this
Topic, a kind of earlier application patent " multi-functional steering wheel tractor of the present inventor(CN201410506879.7)" disclose one kind
Steering wheel tractor, it, which tows the head and dragged, can be achieved fast assembling-disassembling between card or arm-rest frame component, peasant household can be flexible as needed
It is assembled into tractor or mini-tiller uses.The technical scheme solves the problems, such as quick assembling, but in actual applications, can also meet
The problem of to a course changing control:Rotation of towing the head is driven by steering wheel when steering wheel tractor turns to, and uses differential mechanism pair
The front-wheel on both sides of towing the head is driven, and when separate drag card to tow the head to repack rotary cultivator or mini-tiller into after, because arable land is concavo-convex
It is uneven, it is necessary to the differential lock that will be towed the head, just to enable the rotary blade on both sides or micro- cultivated knife normal work, now turning to adopt
It is controlled with separation steering cluth, therefore, how to effectively control tow the head interior differential mechanism and separation steering cluth in difference
The problem of working condition in is a urgent need to resolve.
The content of the invention
It is an object of the invention to provide a kind of multi-functional steering wheel tractor, the tractor is in towing the head while there is provided poor
Fast device and separation steering cluth, and are one easy differential lock of designs of differentials, when as steering wheel tractor in use,
Its front-wheel is driven using differential mechanism, and now differential lock is in the state often opened;Drag card to tow the head to repack rotation into when separating
When the machine of ploughing or mini-tiller, differential mechanism is locked with differential lock, left and right turn is entered with the separation steering cluth on both sides respectively
Row control.
The concrete technical scheme of the present invention is as follows:
A kind of multi-functional steering wheel tractor, including card is towed the head and drags, it is described to tow the head provided with engine and front drive transmission case;
Power is transmitted to front drive transmission case, the change-speed gearing group of front drive transmission case and exported by engine by clutch and power output shaft
End is meshed by driving bevel gear with the driven bevel pinion of differential mechanism, and then drives differential mechanism motion;The left half axle of differential mechanism
It is splined shaft with right axle shaft, left half axle is socketed with left idler gear and left separation tooth sector, right axle shaft successively from the inside to the outside
It is socketed with right idler gear and right separation tooth sector successively from the inside to the outside, its middle left and right idler gear is distinguished by spline
It is socketed in left and right half, and left and right separation tooth sector is socketed in left and right half respectively by unthreaded hole;Left idler gear with
Two opposing end surfaces of differential mechanism driven bevel pinion are provided with the tooth being mutually matched and the castellated differential lock of composition, differential lock are opened
Conjunction is controlled by differential lock rocking arm;Left idler gear is provided with left two opposing end surfaces for separating tooth sector and is mutually matched
Tooth and composition jaw clutch;Right idler gear also is provided with mutual with right two opposing end surfaces for separating tooth sector
The tooth and composition jaw clutch matched somebody with somebody, the jaw clutch of the right and left is equipped with separation pitman arm and return spring enters
Row separation and return control.
Power is transmitted to the rotary tillage power output shaft on both sides and outwards exported by the left and right idler gear respectively;Institute
Left and right separation tooth sector is stated respectively to transmit power to left and right front-wheel.
It is described tow the head on be additionally provided with clutch rocking arm, gear-shifting rocker arm and throttle rocking arm respectively to clutch, front drive transmission case and
Throttle is controlled, and the clutch rocking arm that tows the head, gear-shifting rocker arm, differential lock rocking arm, throttle rocking arm pass through clutch bracing wire, gearshift respectively
Line, differential lock bracing wire, acceleration cable are connected on the corresponding control unit for dragging card driver's cabin;The power output shaft tail end to tow the head from
Front drive transmission case stretches out backward, its by pin with drag the power input shaft in front of card to be connected;The rear lower portion to tow the head is provided with
Traction frame, its by towing pin and drag card front mop formed it is be hinged;The rear lower portion side towed the head is additionally provided with steering input
Bar, it is by turning to connecting pin and dragging the steering take-off lever in front of card to be hinged;The power input shaft of card is dragged through rear-guard gearbox
Power is reached into rear axle assy with rear axle reductor assembly, and then drives trailing wheel.
This tractor, which tows the head, is also equipped with a set of independent arm-rest frame, and arm-rest frame includes two handrail handles of connecting plate and left and right,
When need using this tractor as rotary cultivator or mini-tiller in use, the connection dragged card and towed the head is taken apart and separated, handrail
Frame is fixedly installed to by connecting plate on the arm-rest frame connecting seat for top of towing the head, clutch handle, shift handle on handrail handle, point
Bracing wire, handrail are turned to by handrail clutch bracing wire, handrail gearshift line, handrail separation respectively from hand handle, throttle speed regulating switch is turned to
Acceleration cable is correspondingly connected on the clutch rocking arm to tow the head, gear-shifting rocker arm, separation pitman arm and throttle rocking arm, differential lock rocking arm
It is vacant and be placed on make differential lock lock position;When being assembled into rotary cultivator, it is motor-driven that rotary tillage knife assembly is arranged on rotary tillage
On power output shaft;When being assembled into mini-tiller, the front-wheel to tow the head is replaced with micro- cultivated knife assembly, and in the position of traction frame
Speed control rod is installed.
Advantages of the present invention is:Compared with common steering wheel tractor, multi-functional steering wheel tractor of the invention is not
It is only capable of carrying out agricultural transport operation, can also will tows the head and drag when needed card to separate, and arm-rest frame and phase is installed on towing the head
The work tool answered, and then it is used for agricultural production operation as rotary cultivator or mini-tiller.This tractor is in towing the head while sets
Differential mechanism and separation steering cluth, and differential lock is equipped with for differential mechanism, when as steering wheel tractor normal use, its
Front-wheel is driven using differential mechanism, and now differential lock is in normal open mode, before steering wheel tractor runs into obstacle appearance
When taking turns unilateral skidding, differential lock bracing wire can be manipulated differential mechanism is subjected to temporary locking with differential lock, be allowed to overcome obstacle;
When separate drag card to tow the head to repack rotary cultivator or mini-tiller into when, manually adjusting differential lock rocking arm makes differential lock be in often locking shape
State, with separation steering cluth control left and right turn.Therefore either use as steering wheel tractor or be used as rotary cultivator
Or mini-tiller uses, the present invention has good steering operation performance.It is additionally as tractor in use, dynamic due to what is towed the head
Power can be transmitted to dragging card, and front-wheel drive both can be used during transport driving, it is possible to use rear wheel drive, while can also be before use
Four-wheel drive afterwards, front and rear four-wheel drive can add adhesive force, improve driving performance, improve tractor climbing capacity and
The handling capacity of field road.
Brief description of the drawings
Fig. 1 is this steering wheel tractor overall structure diagram.
Fig. 2 is the inside connection transmission schematic diagram of this steering wheel tractor.
Fig. 3 is the schematic diagram that this steering wheel tractor tows the head and dragged card to separate.
Fig. 4 is the top view of arm-rest frame.
Fig. 5 is arm-rest frame and the assembling schematic diagram that tows the head.
Fig. 6 is Fig. 5 top view.
Fig. 7 is Fig. 5 A-A direction views.
Fig. 8 is the schematic diagram for being assembled into rotary cultivator.
Fig. 9 is the schematic diagram for being assembled into mini-tiller.
The schematic diagram that differential lock is often opened when Figure 10 is this steering wheel tractor normal use.
Schematic diagram when Figure 11 is this steering wheel tractor differential lock temporary locking.
Figure 12 is that the schematic diagram that steering cluth control separation turns to is separated when being assembled into rotary cultivator or mini-tiller.
Figure 13 is the schematic diagram that each bracing wire connects with corresponding rocking arm.
Figure 14 is the schematic diagram that gearshift line is connected with gear-shifting rocker arm.
In figure:1- tows the head, and 2- drags card, 3- engines, 4- front drive transmission cases, 5- connecting boxs, 6- transmission cases, 7- clutches,
8- power output shafts, 9- change-speed gearing groups, 10- driving bevel gears, 11- differential mechanisms, 12- driven bevel pinions, 13- left half axles, 14-
Right axle shaft, 15- left idler gears, the left separation tooth sectors of 16-, the right idler gears of 17-, the right separation tooth sectors of 18-, 19- are poor
Speed lock rocking arm, 20- separation pitman arms, 21- return springs, 22- rotary tillage power output shafts, 23- front-wheels, 24- clutch rocking arms,
25- gear-shifting rocker arms, 26- differential lock rocking arms, 27- throttle rocking arms, 28- clutch bracing wires, 29- gearshift lines, 30- differential lock bracing wires, 31-
Acceleration cable, 32- drag card driver's cabin, 33- pins, 34- power input shafts, 35- traction frames, 36- towing pins, 37- mops, 38-
Input lever is turned to, 39- turns to connecting pin, and 40- turns to take-off lever, 41- rear-guard gearboxes, 42- rear axle reductor assemblies, after 43-
Axle assembly, 44- trailing wheels, 45- drag beam, and 46- jack steadies, 47- heel braces, 48- differential lock handles, 49- front drive transmission cases, which are dialled, to be kept off
Bar, 50- pairs speed change dial pin, 51- clutch pedals, 52- brake pedals, 53- gas pedals, 54- steering wheels, 55- main transformers speed group
Pin, 56- seats, 57- arm-rest frames, 58- connecting plates, 59- handrail handles, 60- arm-rest frame connecting seats, 61- clutch handles, 62- are changed
Block handle, 63- separation turn to hand handle, 64- throttle speed regulatings switch, 65- handrail clutch bracing wires, 66- handrails gearshift line, 67- handrails
Separation steering bracing wire, 68- handrail acceleration cables, 69- rotary tillage knife assemblies, the micro- cultivated knife assemblies of 70-, 71- speed control rods, 72- bracing wires are consolidated
Determine pin, 73 gearshift line fixed feets.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As Figure 1-3, this multi-functional steering wheel tractor, which includes towing the head, 1 and drags card 2, and described tow the head 1 is provided with engine 3
With front drive transmission case 4;Engine 3 is transmitted power to front drive transmission case 4, forerunner's speed change by clutch 7 and power output shaft 8
The output end of change-speed gearing group 9 of case 4 is meshed by driving bevel gear 10 with the driven bevel pinion 12 of differential mechanism 11, and then is driven
Differential mechanism 11 moves.The left half axle 13 and right axle shaft 14 of differential mechanism 11 are splined shaft, and left half axle 13 is socketed successively from the inside to the outside
There are left idler gear 15 and left separation tooth sector 16, right axle shaft 14 is socketed with right idler gear 17 and right point successively from the inside to the outside
From tooth sector 18, its middle left and right idler gear 15,17 is socketed in left and right half 13,14 respectively by spline, and left and right
Separation tooth sector 16,18 is socketed in left and right half 13,14 respectively by unthreaded hole;Left idler gear 15 and differential mechanism are driven
Two opposing end surfaces of bevel gear 12 are provided with the tooth being mutually matched and the castellated differential lock of composition, and the folding of differential lock is by differential
Lock rocking arm 19 is controlled;Left idler gear 15 is provided with what is be mutually matched with left two opposing end surfaces for separating tooth sector 16
Tooth and composition jaw clutch;Right idler gear 17 on right two opposing end surfaces for separating tooth sector 18 with also being provided with mutually
The tooth and composition jaw clutch of matching, the jaw clutch of the right and left are equipped with separation pitman arm 20 and return bullet
Spring 21 carries out separation and return control.
The left and right idler gear 15,17 respectively by power transmit to both sides rotary tillage power output shaft 22 and outwards
Output;The left and right separation tooth sector 16,18 respectively transmits power to left and right front-wheel 23.
Described tow the head is additionally provided with clutch rocking arm 24, gear-shifting rocker arm 25 and throttle rocking arm 27 respectively to clutch 7, forerunner on 1
Gearbox 4 and throttle are controlled, and the 1 clutch rocking arm 24 that tows the head, gear-shifting rocker arm 25, differential lock rocking arm 26, throttle rocking arm 27 divide
The corresponding control for dragging card driver's cabin 32 is not connected to by clutch bracing wire 28, gearshift line 29, differential lock bracing wire 30, acceleration cable 31
On part;1 tail end of power output shaft 8 of towing the head stretches out backward from front drive transmission case 4, and it is by pin 33 and drags in front of card 2
Power input shaft 34 is connected;1 rear lower portion of towing the head is provided with traction frame 35, and it is by towing pin 36 and drags dragging in front of card 2
Formed 37 be hinged;Tow the head 1 rear lower portion side is additionally provided with and turns to input lever 38, and it connecting pin 39 and drags card 2 by turning to
The steering take-off lever 40 in front is hinged;The power input shaft 34 of card 2 is dragged through rear-guard gearbox 41 and rear axle reductor assembly 42
Power is reached into rear axle assy 43, and then drives trailing wheel 44.
As shown in Fig. 4-Fig. 9, this tractor, which tows the head, is also equipped with a set of independent arm-rest frame 57, and arm-rest frame 57 includes connecting plate
58 and two handrail handles 59 in left and right, when needing using this tractor as rotary cultivator or mini-tiller in use, card 2 will be dragged and tow the head 1
Connection take apart and separate, arm-rest frame 57 is fixedly installed to by connecting plate 58 on the arm-rest frame connecting seat 60 for 1 top of towing the head,
Clutch handle 61, shift handle 62 on handrail handle 59, separation turn to hand handle 63, throttle speed regulating switch 64 respectively by handrail from
Close bracing wire 65, handrail gearshift line 66, handrail separation turn to bracing wire 67, handrail acceleration cable 68 it is corresponding be connected to tow the head 1 clutch
On rocking arm 24, gear-shifting rocker arm 25, separation pitman arm 20 and throttle rocking arm 27, differential lock rocking arm 26 is vacant and is placed on and makes difference
The position of speed lock locking;When being assembled into rotary cultivator, rotary tillage knife assembly 69 is arranged on rotary tillage power output shaft 22;
When being assembled into mini-tiller, towing the head, 1 front-wheel 23 replaces with micro- cultivated knife assembly 70, and installs speed governing in the position of traction frame 35
Bar 71.Supported in order to convenient in dismounting, 1 inferoanterior that tows the head is provided with the heel brace 47 that can be packed up or put down, before dragging card 2
Beam 45 is dragged to be provided with telescopic jack steady 46 in end bottom.
This tractor is equipped with difference in towing the head while there is provided differential mechanism 11 and separation steering cluth for differential mechanism 11
Speed lock, when as steering wheel tractor normal use, as shown in Figure 10, left idler gear 15 and differential mechanism driven bevel pinion 12
Between castellated differential lock be in normal open mode, and left and right idler gear 15,17 separates tooth sector 16,18 with left and right
Between jaw clutch closure state is in the presence of return spring 21, now front-wheel 23 is carried out using differential mechanism 11
Driving;, can be by controlling differential lock bracing wire 28 when steering wheel tractor, which runs into obstacle, 23 unilateral skidding of front-wheel occurs
Differential mechanism 11 is subjected to temporary locking, as shown in figure 11, two front-wheels 23 is realized synchronous driving to overcome obstacle;Card is dragged when separating
2 will tow the head 1 when repacking rotary cultivator or mini-tiller into, and manually adjusting differential lock rocking arm 24 makes differential lock be in normal lock-out state, such as
Shown in Figure 12, now the left and right turn of front-wheel 23 can be by controlling left and right idler gear 15,17 to separate tooth sector with left and right
16th, the jaw clutch between 18 is separated to realize.Therefore either use as steering wheel tractor or be used as rotary tillage
Machine or mini-tiller use, and the present invention has good steering operation performance.
This tractor tow the head 1 use " door " shape structural arrangement, as shown in fig. 7, tow the head 1 the both sides of front drive transmission case 4 it is each
Provided with a connecting box 5, the outside of two connecting boxs 5 is respectively provided with a transmission case extended downwardly 6, and the downside of two transmission case 6 is respectively
Connect left and right front-wheel 23;The left and right separation tooth sector 16,18 respectively transmits power to both sides from the connecting box 5 on both sides
Transmission case 6 and then driving left and right front-wheel 23.The transmission mechanism set in the transmission case 6 can use gear drive or
Chain drive.Such design can effectively raise the chassis towed the head, and it is good that tractor spans through performance, agriculture preferably
Industry transport.
In addition, towing the head on 1 in this tractor, when each bracing wire connects with corresponding rocking arm, towing the head is additionally provided with bracing wire on 1 and consolidates
Determine pin 72, pipe sleeve one end of each bracing wire is buckled in corresponding bracing wire fixed feet 72, and the core major part of bracing wire is buckled in corresponding rocking arm
On, as shown in figure 13;Because gear-shifting rocker arm 25 needs thrust and pulling force to be driven, when gearshift line and gear-shifting rocker arm 25 connect,
Towing the head and gearshift line fixed feet 73 is additionally provided with 1, the pipe sleeve screw rod of gearshift line one end is fixed in gearshift line fixed feet 73 with nut,
The bearing pin of shift wire core bar is buckled in the hole of gear shifting rocking arm 25, as shown in figure 14.