CN2150091Y - Multi-function tractor used in paddy field - Google Patents

Abstract

The utility model relates to a multi-function tractor used in paddy field, comprising an engine, a drive mechanism, a screw propeller, a land route running wheel, a hydraulic device, a bottom frame, a ship hull, an electricity device, a meter, and a traction and suspension device. By utilizing the aluminium alloy and the engineering plastics, the complete machine has the structural weight which can float on the water surface and float and slide on the mud layer. A set or two sets of screw propellers which has opposite directional left-hand and right-hand helixes and screw blades carries out rotary tillage. The utility model can also trail the operation of ploughing, harrowing, puddling and leveling to carry out tillage in paddy field. The utility model which can be used as a motor boat when used in a river, and as a three-wheeled air-cushion motorcycle or a super light minisized air-cushion miniature car when used on land route is a land and water vehicle.

Description

Multi-function tractor used in paddy field

The utility model relates to a kind of farm power machine.Especially a kind of multi-functional paddy field trac. product.For making trac. be applicable to underwater cultivation, through long-term endeavour, done a lot of improvement, all these existing improvement technology are analyzed from the paddy field soil dynam, can reduce following four power to be:

1, friction force system: as improving tire tread, four wheel drive, to improve the adhesion value of drive wheel.

2, engagement mechanics: as paddy field impeller, rake tooth paddy field iron tyre, grid type paddy field iron tyre, edge plastics paddy field iron tyre, boat tractor paddy field wheel etc., make and drive wheel clogging to the hardboard layer, utilize the physical mechanical strength of hardboard layer soil, to improve trac. through performance and tractive property.

3, operation and walking split power system: as the impeller rotovator, and the rotary tillage of direct drive rotovator, the drives impeller walking is to improve operating efficiency.

4, spiral power system: as Chinese patent 87205242 twin shaft difference spiral cultivator for paddy field.

According to the dynamic (dynamical) principle of paddy field soil, the trac. of any structure form enters underwater cultivation, bring into play drawbar efficiency, the equilibrium problem between the application force of necessary solution driver train and the antagonistic force of soil.Farming in the paddy field of shallow mud pin, these driver trains all rely on resistance to compression, the shear strength of hardboard layer soil, with the equilibrium problem of the antagonistic force of the application force that solves driver train and soil.Farming in the paddy field of dark mud pin, these driver trains are difficult to touch hardboard layer soil, and the resistance to compression of topsoil, shear strength are very low, are difficult to make the application force of driver train and the antagonistic force of soil to average out; Thereby the paddy field tractor generation depression of friction force system, engagement force architecture, skid, be difficult to bring into play drawbar efficiency; Operation and walking split the paddy field tractor of power architecture, and the support that also needs hardboard layer soil is to prevent depression and to obtain propulsive force, and is also inapplicable for dark mud pin paddy field; Chinese patent 87205242 twin shaft difference paddy field cultivators utilize the heavy burden hull to solve the depression of ship machine; Utilize two screw threads opposite, the parallel and gap conveyor screw of rotation laterally simultaneously of shaft centerline advances and the integrative-structure of ploughing and weeding as paddy field cultivator, and ploughing for paddy field water provides a kind of type.But the shortcoming of this technology is: 1, can not trailed plough, rake, the working rig operation such as level land, weed and loosen the soil; 2, crossing over ridge needs manpower to shoulder to lift; 3, can not take operation, labour intensity is bigger.

The purpose of this utility model is the cultivated trac. product of a kind of paddy field water that provides for the shortcoming that overcomes above-mentioned technology existence, it is applicable to carries out water farming industry in the paddy field (topsoil immersion bubble is mashed, water ratio reaches more than 30%), can trailed plough, rake, level land, weed and loosen the soil operation, be particularly useful for dark mud pin paddy field such as land reclaimed from a lake, paddy field with ponded water in winter one class paddy field, topsoil more is wet soft, and farming efficient is higher; Ridge can be crossed over voluntarily, operation can be taken, motor-driven, flexible, comfortable; It uses as motorboat in rivers, uses as motor bike or roadlice on the land route, for area, the network of waterways provides a kind of amphibious vehicle.

The purpose of this utility model is achieved in that the utility model system is made of travel wheel, hydraulic efficiency gear, underframe, hull, electric and instrument, handling device, traction and suspension gear of driving engine, transmission device, spiral propeller, land route; Float on the water surface, slick and frivolous by using aluminum alloy, engineering plastics that it is had in the complete machine structure weight of mud oar layer, by spiral propeller carry out rotary tillage and can trailed plough, rake, level land, weed and loosen the soil operation, it is applicable to that the paddy field carries out water farming industry; Because own wt is light, in rivers, can be used as motorboat and use; Have can lifting the land route wheel that travels, on the land route, can make motor bike or roadlice and use; Be that catchment Tagayasu Den's work, rivers, land route travels on the engine of one.

Accompanying drawing is described embodiment of the present utility model:

Fig. 1, multi-functional paddy field trac. overall structure scheme drawing

Fig. 2, geartrain systems figure

Fig. 3, spiral propeller constructional drawing

Fig. 4, helicallobe figure

Fig. 5, helical angle and blade rake figure

Fig. 6, multi-functional paddy field tractor structure weight chart

Fig. 7, multi-functional paddy field trac. texture map

Fig. 8, paddy field soil dynam population equilibrium figure

Fig. 9, the rivers schematic diagram that travels

Schematic diagram travels for Figure 10, land route

Below the utility model (in conjunction with the accompanying drawings) be described further:

Fig. 1 describes the overall structure of multi-functional paddy field trac., by driving engine ［ 1 ］, transmission device ［ 2 ］, a spiral propeller left side ［ 3 ］, right ［ 4 ］, land route travel front jocket wheel ［ 5 ］, a drive wheel left side ［ 6 ］, right ［ 7 ］, hydraulic efficiency gear ［ 8 ］, underframe ［ 9 ］, hull ［ 10 ］, electric and instrument ［ 11 ］, handling device ［ 12 ］, traction and suspension gear ［ 13 ］ formation; With driving engine ［ 1 ］, transmission device ［ 2 ］, a spiral propeller left side ［ 3 ］, right ［ 4 ］, front jocket wheel ［ 5 ］ travels in the land route, a drive wheel left side ［ 6 ］, right ［ 7 ］, hydraulic efficiency gear ［ 8 ］, electric and instrument ［ 11 ］, traction and suspension gear ［ 13 ］ are all by being loaded on the underframe ［ 9 ］, dispose shock absorption device between underframe ［ 9 ］ and the hull ［ 10 ］, a spiral propeller left side ［ 3 ］, right ［ 4 ］ are assemblied under the hull ［ 10 ］, front jocket wheel ［ 5 ］ is assemblied in hull ［ 10 ］ the place ahead, a drive wheel left side (6), right (7) are assemblied in hull (10) both sides, rear portion, and traction suspension gear (13) is assemblied in hull (10) afterbody; Farming and in rivers, travelling in the paddy field, front jocket wheel ［ 5 ］, a drive wheel left side ［ 6 ］, right ［ 7 ］ maintain an equal level with hull ［ 10 ］ bottom surface, use a spiral propeller left side ［ 3 ］, right ［ 4 ］, can match with double-bladed plough as the traction ploughshare; Identically with the parameter of a spiral propeller left side ［ 3 ］, right ［ 4 ］ increase by one group of spiral propeller again, can match with four-furrow plough; On the land route, travel, by hydraulic efficiency gear ［ 8 ］ the following 15cm of spiral propeller is reduced in front jocket wheel ［ 5 ］, a drive wheel left side ［ 6 ］, right ［ 7 ］, make it become motor-tricycle, the trac. of two groups of spiral propeller structures, front jocket wheel increases to a pair of, be disposed at hull ［ 10 ］ front part sides, make it become ultralight, mini car; When crossing over ridge and on the land route, travel when needing to quicken, can use spiral propeller and land route wheel two covering devices that travel simultaneously; And use aluminum alloy, engineering plastics make complete machine structure weight float on the water surface, superficially and silly on mud layer.

Fig. 2 describes transmission device, the power of driving engine ［ 1 ］, by master clutch ［ 14 ］, change-speed box ［ 15 ］, main gear ［ 16 ］, a steering clutch left side ［ 17 ］, right ［ 18 ］, a spiral propeller final stage chain-driving left side ［ 19 ］, right ［ 20 ］, a spiral propeller drg left side ［ 21 ］, right ［ 22 ］, a spiral propeller drive sprocket left side ［ 23 ］, right ［ 24 ］, power-transfer clutch ［ 25 ］ travels in the land route, diff ［ 26 ］, the final stage chain-driving left side ［ 27 ］ of travelling, land route, right ［ 28 ］, the drive sprocket left side ［ 29 ］ of travelling, land route, right ［ 30 ］ drive a spiral propeller left side (3), wheel left (6) travels for right (4) and land route, right (7); A spiral propeller drg left side (21), right (22) combine layout with a rotatable propeller final stage chain-driving left side ［ 19 ］, right ［ 20 ］, and pin is stepped on braking; The land route travel front jocket wheel ［ 5 ］, be arranged on the wheel hub with the drg of a drive wheel left side ［ 6 ］, right ［ 7 ］, adopt to turn to handgrip to turn to braking by hand brake; The transmission device of two groups of spiral propellers need increase by one group with a final stage chain-driving left side ［ 19 ］, right ［ 20 ］ and a drive sprocket left side ［ 23 ］, the right side ［ 24 ］ identical mechanism; A complete set of transmission device with paddy field, rivers and land route two overlap running gears and field, water, the three kinds of speed combination in road are one, three kinds of speed selection are as follows:

Events in operation	Rotary tillage band ploughing km/h	Km/h is harrowed, leveled land, weeds and loosen the soil to the rotary tillage band	The rivers r/min that travels	Km/h travels in the land route
					Speed range
	3～6	6～9	250～375	15～50

Three kinds of speed are pressed 4 class in conjunction with as follows:

Class	Underwater cultivation km/h	Rivers farming r/min	Km/h travels in the land route
				One grade	3	250	16.65
Second gear	4.5	375	25.65
				Third gear	6		33.30
Fourth gear	9		50.61

Fig. 3 describes the structure of spiral propeller, is cut apart from ［ 34 ］, propelling unit radius ［ 35 ］, propelling unit length ［ 36 ］, actuating device ［ 37 ］, bearing set ［ 38 ］, actuating device sealing (39) bearing set sealing ［ 40 ］ by screw shaft ［ 31 ］, pitch ［ 32 ］, helicallobe ［ 33 ］, blade to constitute.The farming and in rivers, travelling in the paddy field of multi-functional paddy field trac., its driver train is a spiral propeller, and a trac. disposes one group or two groups of spiral propellers, and one group of propelling unit and double-bladed plough are complementary, and two groups of propelling units and four-furrow plough are complementary; A spiral propeller is established 4-6 pitch, a pitch is established 2-3 blade, spiral propeller is assemblied under the hull ［ 10 ］, by end bearing before the working direction, the rear end drives, and small-sized and stream line pattern is made every effort to reach in driving and bearing set ［ 37 ］, ［ 38 ］, to reduce resistance of taxing, good sealing arrangement ［ 39 ］, ［ 40 ］ to be arranged simultaneously, avoid the immersion of muddy water; One group of spiral propeller is made of a left side ［ 3 ］, right ［ 4 ］, and by all rotations laterally of its helix line of working direction, the parameters of a propelling unit left side ［ 3 ］, right ［ 4 ］ is identical.The screw motion of spiral propeller constitutes the speed of trac. in the paddy field.

Speed V=pitch S * speed of screw shaft r/min

If pitch ［ 32 ］: 15～25cm, engine speed r/min:2000, the needs of the various ploughing speeds in paddy field can be satisfied in theoretical velocity km/h:18～30 then after speed change.Cause steering torque to realize turning to by a control spiral propeller left side ［ 3 ］, the different speed in right ［ 4 ］ both sides.

Fig. 4 describes the helicallobe structure, constitute by garden arc length ［ 42 ］, depth of blade ［ 43 ］ at the bottom of the outer garden arc length ［ 41 ］ of blade, the blade, the outer garden of blade is that root face ［ 44 ］, blade both sides are that parabola ［ 46 ］ is made with two jiaos that are threaded in the garden at the bottom of orifice ［ 45 ］, the blade, helicallobe is a part of intercepting helical surface, and its parameter can obtain by following calculating:

$=\frac{\sqrt{{\mathrm{(2\times r\times \pi )}}^2{\mathrm{+<figure-callout\; id="2"\; label="s"\; filenames="922361789\_DRIMG1.png"\; state="\{\{state\}\}">s</figure-callout>}}^2}\mathrm{÷<figure-callout\; id="2"\; label="X"\; filenames="922361789\_DRIMG1.png"\; state="\{\{state\}\}">X</figure-callout>}}{2}$

$＝\frac{\sqrt{{\mathrm{(2\times ri\times \pi )}}^2{\mathrm{+<figure-callout\; id="2"\; label="S"\; filenames="922361789\_DRIMG1.png"\; state="\{\{state\}\}">S</figure-callout>}}^2}\mathrm{÷<figure-callout\; id="2"\; label="X"\; filenames="922361789\_DRIMG1.png"\; state="\{\{state\}\}">X</figure-callout>}}{2}$

Depth of blade=r-ri

X is the number of blade of pitch, and r is the spiral propeller radius, and ri is the outside diameter of thread radius.The helical surface that helicallobe intercepted is similar to and cuts apart from 1/2 of ［ 34 ］ helical surface that intercepts, is to make by the soil after the helicallobe shearing to pass through in the middle of two blades, obtains as far as possible little resistance; Helicallobe is made parabola ［ 46 ］ to block up mud and to twine grass between the minimizing blade with two jiaos that are threaded, and makes it have self-cleaning; The outer garden of blade is pure limit ［ 44 ］, in order to the ridge of ascending; Both sides are orifice, in order to reducing the rotary tillage resistance; The screw motion of spiral propeller blade, blade breaks ground and advances by cutting apart from ［ 34 ］, by theoretical helicallobe is to move on same track, but in fact because factors such as the situation that screws of blade and soil, traction resistance, blade rakes, each blade all advances breaking ground, and the result is that the screw motion of blade is cut soil completely mashed; Soil through after the spiral propeller rotary tillage can reduce the ploughing resistivity exponentially; Through the soil of rotary tillage band ploughing, have the advantage of rotary tillage and ploughing concurrently, harrow, level land, weed and loosen the soil the soil of operation through the rotary tillage band, can improve retaining and ventilation capacity, add and apply fertilizer to the subsoil, can stir fertilizer equably, improve the fertility of soil, thereby improve cultivating quality, help increasing production paddy.

Fig. 5 describes helical angle and blade rake, and helix line ［ 47 ］ is arranged on the screw shaft ［ 31 ］, and a spiral propeller left side ［ 3 ］, helix line ［ 47 ］ are the left-hand screw line, and right ［ 4 ］ helix line ［ 47 ］ is a right-hand helix, and helical angle ［ 48 ］ depends on pitch ［ 32 ］; Obtain higher operating speed for making trac., pitch ［ 32 ］ is generally got＞15cm, but when pitch＞15cm, helical angle ［ 48 ］ promptly＞45 °, promptly reduce by the reaction thrust of working direction soil along with the increase of helical angle ［ 48 ］ for blade, for making soil that helicallobe the screws thrust of balance blade and the reaction thrust of soil effectively, the garden angle is identical with helix line ［ 47 ］ angle at the bottom of the blade, the outer garden of blade anterior angle is dialled go back to certain inclination angle ［ 49 ］, make it approach 45 ° of helical angles; When helicallobe was rotated in air, its horizontal direction half was that hoisting force, half is propulsive force; The arrangement of blade lumps together arrangement with whole angle of rake vane group, requires to reach the outer garden of blade and constitutes uniform earth point, is beneficial to the ridge of ascending, and blade is stacked to constitute uniform spiral blade face, is beneficial to and screws soil equably; Blade rake and blade are arranged to be and obtain good propulsive force from soil: the blade of spiral propeller constitutes numerous spiral blade faces, vertical anti-shear ability that the garden cylindricality soil that they screw constitutes, be the thrust of the soil reaction thrust＞blade that can bear, in the hope of giving full play to the drawbar efficiency of trac..

Fig. 6 describes multi-functional paddy field trac. complete machine structure weight.Complete machine structure weight G _j［ 50 ］ by hull displacement P _t/ kg ［ 51 ］ adds the soil bearing surface area D of upper hull _m/ cm ²［ 52 ］, multiply by pedological unit area compressive strength kg/cm ²Added weight G when ［ 53 ］, deducting operation _F/ kg ［ 54 ］ obtains; Complete machine structure weight G _j［ 50 ］, travelling in rivers floats on the water surface, and farming superficially and silly is unlikely depression on mud layer in the paddy field, and the pressure (53) that complete machine adds to soil areal of support unit area is no more than 0.02Kg/cm ², 1/10 of the approximate working weight of resistance of taxing, as surpassing this pressure, the ship machine begins depression, increases the rotary tillage degree of depth, rotary tillage resistance and resistance of taxing thereupon; Farming in the paddy field, complete machine structure weight G _j［ 50 ］ be directly proportional with resistance of taxing, be inversely proportional to, reduce complete machine structure weight G with dbp _j［ 50 ］ can reduce resistance of taxing and raising dbp, require every horsepower of structural weight that it is limited in below the 15kg/ps, until dropping to below the 10kg/ps.

Fig. 7 describes the material feature of multi-functional paddy field trac.: remove a spiral propeller left side ［ 3 ］, right ［ 4 ］, Hydraulic Pump ［ 55 ］, front jocket wheel lifting hydraulic cylinder ［ 56 ］ travels in the land route, a drive wheel lifting hydraulic cylinder left side ［ 57 ］, right ［ 58 ］, suspension gear hydraulic actuating cylinder ［ 59 ］, a spiral propeller chain drive-belt left side ［ 60 ］, right ［ 61 ］, the chain drive-belt left side ［ 62 ］ of travelling, land route, right ［ 63 ］ use steel as outside the material temporarily, driving engine ［ 1 ］, master clutch ［ 14 ］, change-speed box ［ 15 ］, main gear ［ 16 ］, a steering clutch left side ［ 17 ］, right ［ 18 ］, a spiral propeller drg left side ［ 21 ］ right ［ 22 ］, power-transfer clutch ［ 25 ］ travels in the land route, diff ［ 26 ］, front jocket wheel wheel hub ［ 64 ］ travels in the land route, a drive wheel wheel hub left side ［ 65 ］ right ［ 66 ］, underframe ［ 9 ］, traction all uses aluminum alloy to be material with suspension gear ［ 13 ］; Primary fuel case ［ 67 ］, water tank ［ 68 ］, airfilter ［ 69 ］, hood ［ 70 ］, main fuel reservoir ［ 71 ］, operator's saddle ［ 73 ］, take the travel housing of power-transfer clutch ［ 25 ］, diff ［ 26 ］ of a seat left side ［ 74 ］, right ［ 75 ］, tool box ［ 76 ］ and hull ［ 10 ］, master clutch ［ 14 ］, change-speed box ［ 15 ］, main gear ［ 16 ］, a steering clutch left side ［ 17 ］, right ［ 18 ］, a spiral propeller drg left side ［ 21 ］, right ［ 22 ］, land route and all use engineering plastics and multiple full material, adopt blowing mould or casting processing technology; By using aluminum alloy, engineering plastics, composite material, make structural weight reduce to every horsepower of 10k _gBelow/the ps.Consider the manufacturing cost of mould of plastics, high strength aluminum alloy, reducing desirable two steps of structural weight problem solves, the first, with its motor bikeization, select driving engine and portion's body thereof of motor bike for use, dispose spiral propeller, hydraulic efficiency gear, underframe, hull, operating mechanism again, carry out pilot scale, typing is produced then; The second, manufacture and design electron steering and directly spray light-duty diesel engine, adopt light materials such as pottery, aluminium titanium, alusil alloy to make driving engine, reduce weight and reduce oil consumption; And indicate the parts material, use in order to reclaiming.

Fig. 8 describes the population equilibrium of multi-functional paddy field trac. when paddy-field-working and traction is calculated, its formula is as follows:

$\mathrm{Z\; =}\underset{}{\overset{}{\mathrm{\&Sigma;}}}{\mathrm{(X}}_2{\mathrm{+\; P}}_2\mathrm{+\; F}{}_2\mathrm{)\; \le M1\; =}\frac{\mathrm{716.2\times }\frac{N}{n}\mathrm{\times i\; \times ni}}{r}{\mathrm{\le N}}_j\mathrm{=\; ym(2r\pi \times c}{}_X\mathrm{)\times jk}$

Z-trac. resistance of motion summation f.kg

x _z-spiral propeller blade rotary tillage resistance f.kg

p _z-drawbar resistance f.kg

F _z-ship machine resistance of taxing f.kg

M1-propelling unit screw shaft torsion f.kg

N-engine rated power ps

The n-engine calibration passes fast r/min

The i-transmitting ratio

The ni-driving efficiency

R-spiral propeller radius

N _jThe soil longitudinal shear power f.kg that-spiral propeller screws

The soil area of a circle cm that the ym-spiral propeller screws ²

C _xThe soil length cm that-spiral propeller screws

Jk-pedological unit area shear strength kg/cm ²

Press following formula M1＞Z and select engine power, one group of spiral propeller and double-bladed plough match, and engine power is not less than 12ps, and making every effort to has bigger moment of torsion, and two groups of spiral propellers and four-furrow plough match, and engine power is not less than 20ps; According to N _j＞M1 selects spiral propeller to screw the parameter of soil, makes the class of cultivation operation be in Z≤M1≤N _jState, in the hope of giving full play to drawbar efficiency; One group of spiral propeller and double-bladed plough match, tilling depth 18cm, and working width 40cm can average out; Two groups of spiral propellers and four-furrow plough match, tilling depth 18cm～20cm, and working width 80cm can average out.

Because the body own wt is light, the balance that the work tool of suspension and traction should be combined adopts light material, manufactures and designs light-duty facility; The pressure of the areal of support of the hull of operation in the paddy field is evenly distributed, and spiral propeller can be worked smooth-goingly, unmatched phenomenon of sticking up with hind wing.

Fig. 9 describes the principle that multi-functional paddy field trac. travels in rivers, front jocket wheel ［ 5 ］, a drive wheel left side ［ 6 ］, right ［ 7 ］ maintain an equal level with hull ［ 10 ］ bottom surface, and its complete machine shape constitutes plough shape stream line pattern, and it immerses, and part has good sealing property in the water; The hull of one group of spiral propeller structure ［ 10 ］ oad: length ［ 77 ］: 1500mm(do not comprise protrusion front jocket wheel), width ［ 78 ］: 860mm(does not comprise two side drive wheel), ［ 79 ］: 600mm highly, hull draining height ［ 80 ］: 400mm, its load carrying ability Z _j［ 81 ］ be displacement p _e/ kg deducts complete machine structure weight G _j/ kg can get 300kg; When travelling in rivers, note controlling a spiral propeller left side ［ 3 ］, right ［ 4 ］ different speed, the cavitation that forms with control hull bottom both sides keeps relative balance, particularly will control its friction speed and turn to realization; The trac. of two groups of spiral propeller structures, its complete machine shape becomes tall and thin stream line pattern, identical with one group of its hull bottom both sides cavitation relative equilibrium and the principle that turns to; There are two a folding seat left side ［ 74 ］, right ［ 75 ］ taken at the rear portion in the hull, also has a collapsible weather awning ［ 82 ］.

Figure 10 describes the principle that multi-functional paddy field trac. travels on the land route, by hydraulic oil pump ［ 55 ］, hydraulic reservoir ［ 72 ］, distributing box ［ 83 ］, front jocket wheel lifting hydraulic cylinder ［ 56 ］, a drive wheel lifting hydraulic cylinder left side ［ 57 ］, right ［ 58 ］, a spiral propeller left side ［ 3 ］, right ［ 4 ］ following 15cm are reduced in travel front jocket wheel ［ 5 ］, a drive wheel left side ［ 6 ］, right ［ 7 ］, land route, be ground Clearance ［ 86 ］, and be locked, make it become three-wheel air cushion motor bike; Trac. with two groups of spiral propeller structures, front jocket wheel changes into a pair of, be disposed at the fore-body both sides, make it become ultralight, miniature air cushion roadlice, the speed of a motor vehicle can be brought up to per hour 90 kilometers, spiral propeller can be used as the accelerator use when also needing further to improve the speed of a motor vehicle, and helicallobe causes car spirit pad and eddy current with raising speed; Have head light ［ 84 ］ and taillight ［ 85 ］.

The utility model is compared with existing paddy field tractor, has following advantage:

1. the utility model can farming in any completely mashed paddy field. Can depression and skid; It penetrates with, and operation part only has spiral propeller in the muddy water, exists outside the necessary wearing and tearing, and remaining part all is subjected to the protection of hull, avoids the etch of muddy water; Fundamentally solved the long-standing depression of paddy-field-working under the tractor, skidded and the wear problem of parts.

2. the utility model is applicable to that any paddy field carries out water farming industry, is particularly useful for land reclaimed from a lake, the dark mud pin of this class of paddy field with ponded water in winter paddy field, and topsoil more is muddy wet soft, and the efficient of farming is higher; The soil dynamics problem solves by topsoil, no turn up hardboard layer soil, the phenomenon of broken ring paddy field soil structure.

But the utility model trailed plough, rake, level land, weed and loosen the soil operation, with the ploughing of rotary tillage band, both advantage held concurrently; Harrow, level land, weed and loosen the soil operation with the rotary tillage band, two kinds of operations are incorporated in once carry out, improved efficiency of operation and quality,, can improve the retaining and the ventilation capacity of soil through the paddy field of multi-functional paddy field trac. farming; As add and apply fertilizer to the subsoil, soil and fertilizer blending are even, can increase soil fertility; Use the trac. farming of multi-functional paddy field, can inherit tradition: for innovation rice cultivating technique, volume increase paddy provide capable measure with the intensive cultivation of developing water rice growing.

4. the utility model can be obtained the power utilization more much higher than existing paddy field tractor, the power utilization of wheeled paddy field tractor can only reach 35%～45% and the power utilization of multi-functional paddy field trac. can reach 75%～80%, is a kind of underwater cultivation engine of high benefit.

5. the utility model reduces oil consumption owing to raising the efficiency, saving man-hour, thereby reduces the farming cost.

6. the utility model Turning radius is little, and leap ridge performance is strong, takes operation, and motor-driven, flexible, labour intensity is low.

7. complete machine structure weight of the present utility model, existing trac. descends 3～4 times, saves metallic material in a large number.

8. using as motorboat in rivers, can be used as three-wheel air cushion motor bike or ultralight, the use of miniature air cushion roadlice on the land route, is a kind of amphibious vehicle, uses extremely wide.

Claims (5)

1, a kind of multi-functional paddy field trac. is characterized in that by driving engine [1], transmission device [2], a spiral propeller left side [3], right [4], land route travel front jocket wheel [5], a drive wheel left side [6], right [7], hydraulic efficiency gear [8], underframe [9], hull [10], electric and instrument [11], handling device [12], traction and suspension gear [13] formation; Front jocket wheel [5], a drive wheel left side [6], right [7], hydraulic efficiency gear [8], electric and instrument [11], traction and suspension gear [13] are travelled all by being loaded on the underframe [9] in driving engine [1], transmission device [2], a spiral propeller left side [3], right [4], land route, dispose shock absorption device between underframe [9] and the hull [10], a spiral propeller left side [3], right [4] are assemblied under the hull [10], front jocket wheel [5] is assemblied in hull [10] the place ahead, a drive wheel left side [6] right [7] is assemblied in hull [10] both sides, rear portion, and traction suspension gear [13] is assemblied in hull [10] afterbody; Front jocket wheel in paddy field and rivers [5], a drive wheel left side [6], right [7] maintain an equal level with hull [10] bottom, and a spiral propeller left side [3], right [4] following 15cm are reduced in front jocket wheel on the land route [a 5] drive wheel left side [6], right [7]; One group of spiral propeller left side [3], right [4] match with double-bladed plough; Identically with the parameter of a spiral propeller left side [3], right [4] increase by one group of spiral propeller again, match with four-furrow plough, front jocket wheel increases to a pair of, is assemblied in the anterior and arranged on left and right sides of hull [10].

2, multi-functional paddy field as claimed in claim 1 trac., it is characterized in that transmission device is by master clutch ［ 14 ］, change-speed box ［ 15 ］, main gear ［ 16 ］, a steering clutch left side ［ 17 ］, right ［ 18 ］, a spiral propeller final stage chain-driving left side ［ 19 ］ right ［ 20 ］, a spiral propeller drg left side ［ 21 ］, right ［ 22 ］, a spiral propeller drive sprocket left side ［ 23 ］, right ［ 24 ］, power-transfer clutch ［ 25 ］ travels in the land route, diff ［ 26 ］, the final stage chain-driving left side ［ 27 ］ of travelling, land route, right ［ 28 ］, the drive sprocket left side ［ 29 ］ of travelling, land route, right ［ 30 ］ constitute; The transmission device of two groups of spiral propellers increase by one group with a spiral propeller final stage chain-driving left side ［ 19 ］, right ［ 20 ］ and a spiral propeller drive sprocket left side ［ 23 ］, the identical transmission device of right ［ 24 ］ parameter.

3, multi-functional paddy field as claimed in claim 1 trac. is characterized in that spiral propeller is to be cut apart from ［ 34 ］, propelling unit radius ［ 35 ］, propelling unit length ［ 36 ］, actuating device ［ 37 ］, bearing set ［ 38 ］, actuating device sealing ［ 39 ］, bearing set sealing ［ 40 ］ by screw shaft ［ 31 ］, pitch ［ 32 ］, helicallobe ［ 33 ］, blade to constitute; A spiral propeller is established 4～6 pitch, and a pitch is established 2～3 blades; One group of spiral propeller is made of a left side ［ 3 ］, right ［ 4 ］; Two groups of spiral propeller structures increase again one group with a left side ［ 3 ］, the identical spiral propeller of right ［ 4 ］ parameter; The speed V=pitch S * speed of screw shaft r/min of trac. in the paddy field.

4, spiral propeller as claimed in claim 3, it is characterized in that helicallobe is to be made of circular arc at the bottom of blade cylindrical arc length ［ 41 ］, the blade long ［ 42 ］, depth of blade ［ 43 ］, the blade cylindrical is root face ［ 44 ］, the blade both sides are orifice ［ 45 ］, circular arc long ［ 42 ］ is made parabola ［ 46 ］ with two jiaos that are threaded at the bottom of the blade, and helicallobe is a part of intercepting helical surface; A spiral propeller left side ［ 3 ］ helix line ［ 47 ］ is the left-hand screw line, and right ［ 4 ］ helix line ［ 47 ］ is a right-hand helix; Helical angle ［ 48 ］ depends on pitch ［ 32 ］, and when pitch ［ 32 ］ during greater than 15cm, helical angle ［ 48 ］ is dialled go back to certain inclination angle ［ 49 ］ by working direction helicallobe cylindrical anterior angle to 45 ° of helical angles promptly greater than 45 °.

5, multi-functional paddy field as claimed in claim 1 trac. is characterized in that complete machine structure weight Gj ［ 50 ］, by hull displacement pe/kg ［ 51 ］, adds the soil bearing surface area Dm/cm of upper hull ²［ 52 ］ multiply by pedological unit area compressive strength kg/cm ²Added weight Gf/kg ［ 54 ］ obtains when ［ 53 ］, deducting operation again; The pressure ［ 53 ］ that complete machine adds to soil areal of support unit area is no more than 0.02kg/cm ²,, complete machine structure weight Gj ［ 50 ］ is limited in below the 15kg/ps, until dropping to below the 10kg/ps by using aluminum alloy, engineering plastics, composite material.

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