CN2348546Y - Miniature self-walking type tilling implement - Google Patents

Abstract

The utility model relates to a miniature self-walking type tilling implement which belongs to the agricultural machinery. The utility model is mainly used for the soil tilling operation in the vegetable booth and the agronomic crop with high-middle stalks (such as corn and cotton). The horizontal air-cooled gasoline engine has a motor force of 2.94-4.4KW which is transmitted to a variable speed box via a belt and a clutch. The variable speed box is divided into an upper part and a lower part. The upper part is the variable speed part and is provided with an output shaft which is used with a generator or a water pump. The lower part is the ultimately drive part and can be directly provided with a knife roller of rotary tillage for the operation of plowing and tilling. The utility model has the advantages that the structure is simple; the working width of rotary tillage is adjustable; a control handle can be accommodated with the whole directions of top and bottom, right and left, fore and rear. The weight of the whole machine is smaller than 80 kilograms. The multipurpose machine is suitable for the soil tilling operation in the narrow spacing.

Description

The small-sized self-walking tiller

The utility model relates to a kind of agricultural machinery, particularly a kind of (as corn, cotton etc.) cultivated tillage operation small-sized self-walking tiller between (ground such as planting vegetable, flowers, orchard are as booth, greenhouse etc.) and height, king-rod crops with being used for protection.

At present; China's protection ground development is very fast; so far have 8,000,000 mu from 600,000 mu of the end of the seventies as greenhouse, booth; and the mechanization of still being unrealized of the cultivated tillage operation between protection ground and high, king-rod crops; main by the peasant of single household handwork, and labour intensity is big, operation quality is poor, inefficiency, work under bad environment.For the small-sized self-walking tiller that this peasant household is badly in need of, domestic once had the research of many families, but still be in the advanced development stage so far, can not large tracts of land promote the use of.Minitype motivation cultivator (China Patent No.: 91226025.4) as the Zheng Qing mountain design of inspection center of Chinese agricultural machinery institute, engine is 3～5 horsepower diesels, conduct oneself with dignity 135 kilograms, external form such as hand tractor, main composition is to plug corresponding square shaft in the hollow square hole with the gearbox output driving shaft, installs driving wheel or rotary blade group then at the square shaft two ends and draws farm implements or rotary tillage operation.Its weak point is: (1) control crank can not upper and lower left and right adjusting, and in canopy chamber and high, king-rod crops narrow space, difficulty is moved in operation; (2) power is diesel engine, and is bigger at the canopy indoor pollution; When (3) carrying out rotary tillage operation luffing, need the square shaft of the several different lengths of configuration, and cost is big, inconvenient operation; (4) machine is heavier, is not suitable for carrying out on slowly drained soil farming.Self-propelled minisize rotary cultivator (the China Patent No.: 95214622.3) of Zhejiang Agricultural Univ design and for example, adopt fraction horsepower vertical shaft type gasoline engine, complete machine weight is 45kg, formation is that transmission mechanism adopts belt and worm and gear transmission, the rotary tillage rotor is directly installed on the worm-wheel shaft, working width 50cm (tentering), tilling depth 8～12cm, other is provided with gauge wheel.Weak point: (1) can only carry out the rotary tillage operation, can not dispose other work tool (as: ridging, trench digging, weeding etc.), and individual event facility cost is higher; (2) working width is the 50cm tentering, can't luffing, can not satisfy the agriculture requirement of vegetable growing; (3) power is less, is not suitable in clay loam operation on the ground.

The purpose of this utility model is to avoid above-mentioned weak point of the prior art, provide a kind of simple in structure, type is small and exquisite, can comprehensive operation and multi-function operation; It is few to be worth cheap, dependable performance and pollution, is applicable to the small-sized self-walking tiller of putting in order ploughing work between protection ground and high, middle stalk crops.

Embodiment of the present utility model is: the small-sized self-walking tiller comprises engine, gearbox, arm-rest frame, clutch, rotary tillage rotor and chassis, described engine adopts the horizontal air-cooled gasoline engine of 2.94～4.4Kw, and gasoline engine is bolted on the chassis overhang by several.Gasoline engine power is to pass to gearbox by triangle cornu cutaneum belt through the monolithic slip clutch.

Described gearbox is all-gear drive, is divided into upper and lower two parts, and top is the variable part, also is provided with output shaft, can use with machine coordinations such as generator, water pumps; The bottom is final drive part, the driving shaft that the gearbox bottom is provided with is supported on the bearing cap by two ball bearings, and use skeleton oil seal, bearing cap is bolted on the gearbox body by several, the driving shaft two ends are stretched out the bearing cap outside and are divided into square type (or involute) spline, install the rotary tillage rotor at the driving shaft two ends, fix, then can directly carry out the rotary tillage operation with bearing pin; If the rotary tillage rotor is pulled down, change the driving wheels, fix with bearing pin equally, then can draw farm implements and carry out operation.

Described rotary tillage rotor is provided with the rotary blade group of three groups of symmetries, and first group is that welding one inner spline housing directly is connected with driving shaft, and fix by bearing pin in inside and outside six (or four, eight) angle square tube one end; Second group is inside and outside six (or four, eight) the angle square tube welding that matches with two sizes, fixes by bearing pin equally; The 3rd group is the dark cutterhead of welding one limit on second group basis.Each cutter group is provided with 4 blades, comprises 2 right tulwars and 2 left tulwar, and blade is by being bolted on the cutterhead, and cutterhead is welded on big inside and outside six (or four, eight) angle square tube.

The socket coupling type left and right adjusting device that described steady is provided with clutch on-off handle, Oil Switch, up-down adjustment device and can regulates in 360 ° of scopes.

Described chassis is provided with supporting leg, hanging device and rotary tillage tilling depth adjusting device, and chassis overhang is that symmetrical expression is stamped to form with sheet metal, is bolted on the gearbox both sides by several.

Compared with prior art, the utlity model has following advantage: 1. compact conformation, rigidity, intensity are good, and complete machine is from focusing on below 80 kilograms, and is cheap; 2. working width can be adjusted in 0.4～1.0 meter, and tilling depth reaches 12～15cm, and hack and whole ground performance are good; 3. flexible operation, can before and after operation, convenient transfer in canopy chamber and high, king-rod crops narrow space; 4. can dispose multiple farm implements, reach a tractor serves several purposes, satisfy the different agriculture requirements of various crops; 5. adopting gasoline engine is power, has reduced pollution; 6. can be fit to the operation of various soil, and keep better service behaviour.

Existing CONSTRUCTED SPECIFICATION of the present utility model for an embodiment in conjunction with the accompanying drawings:

Fig. 1 is the outside schematic diagram of small-sized self-walking tiller

Fig. 2 is the general assembly schematic diagram of small-sized self-walking tiller

Fig. 3 is the arm-rest frame structural representation of small-sized self-walking tiller

Fig. 4 is that the small-sized self-walking tiller is loaded onto the driving wheel schematic diagram

As shown in the figure, the engine of small-sized self-walking tiller is selected horizontal air-cooled gasoline engine (1) for use, and gasoline engine (1) is fixed on chassis (10) support (31) by several bolts (11).Gasoline engine (1) power is to pass to gearbox (2) by V belt (6) through monolithic slip clutch (5).

Gearbox (2) is all-gear drive, be divided into upper and lower two parts, top is the variable part, is made up of change-speed gearing (13), (14) and some fixed gears, power transmission shaft and control stick etc., other is provided with output shaft (15), can use with machine coordinations such as generator, water pumps; The bottom is provided with driving shaft (22), driving shaft (22) is supported on the bearing cap (23) by two ball bearings (25), and seal with outside framework oil seal (24), bearing cap (23) is fixed on the gearbox body (12) by several bolts (26), driving shaft (22) two ends are stretched out bearing cap (23) outside and are divided into square type (or involute) spline, install rotary tillage rotor (8) at driving shaft (22) two ends, fixing with bearing pin (27), then can directly carry out the rotary tillage operation; Rotary tillage rotor (8) is provided with rotary blade group (16), (18), (19) of three groups of symmetries, first group (16) are that welding one inner spline housing (30) directly is connected with driving shaft (22) in inside and outside six (or four, eight) angle square tube (33) one ends, and fixing by bearing pin (27); Second group (18) are inside and outside six (or four, eight) angle square tubes (33), (35) welding that matches with two sizes, and are fixing by bearing pin (34) equally; The 3rd group (19) are welding one limit dark cutterheads (29) on the basis of second group (18), each cutter group is provided with 4 blades, comprise that 2 right tulwars (20) and 2 are left tulwar (17), blade is fixed on cutterhead (21) by several bolts (28), cutterhead (21) is welded on inside and outside six (or four, eight) the angle square tubes (33), and blade and cutter assembly and disassembly are all very convenient.

Arm-rest frame (4) be provided with clutch (5) clutch handle, Oil Switch (43) and about, the left-right and front-back adjusting device.The up-down adjustment device is made up of inner teeth gear (42), outer tooth (43) and tight fixed bolt (44), can regulate in upper and lower-60 °～+ 60 ° according to different the carrying out of operating personnel's height; About arm-rest frame (4), the front and back adjusting device is made up of several orifice plates (40), spring locking hook (38), internal axle sleeve (37) and outer shaft (36), about carrying out in-180 °～+ 180 ° scopes that can not coexist according to working condition, the adjustment of front and back.Chassis (10) is provided with symmetrical support (31), is fixed on the casing (12) by several bolts (32); Rotary tillage tilling depth adjusting rod (7) is equipped with at the rear portion, in order to regulate tilling depth resistance, garrulous soil rate and to control pace and stable tilling depth; Supporting leg (9) supports the machine balance.

When the utility model draws farm implements, and configuration driven wheel schematic diagram sees accompanying drawing (4), and rotary tillage rotor (8) is pulled down, respectively load onto in both sides and drive wheels (47), and fixing by bearing pin (46), can articulate various small farm machines, carry out work.

Small-sized self-walking tiller gross weight is less than 85 kilograms, operation adhesive force is stronger, flexible operation, can carry out comprehensive operation at the tang between vegetables canopy chamber and height, king-rod crops, 12～15 centimetres of tilling depth, 1.2～1.5 mu/hour of productivity ratio, operation quality is good, a tractor serves several purposes can satisfy the agriculture requirement that vegetables produce.

Claims (5)

1, a kind of small-sized self-walking tiller, comprise engine (1), gearbox (2), arm-rest frame (4), clutch (5), rotary tillage rotor (8) and chassis (10), it is characterized in that: described engine (1) adopts the horizontal air-cooled gasoline engine of 2.94～4.4kw, gasoline engine is by counting bolt (11) on chassis (10), power is passed to gearbox (2) by belt (6) through clutch (5), gearbox (2) is divided into two parts up and down, top is the variable part, and be provided with output shaft (15), can match with generator or water pump; The bottom is divided into final drive part, and driving shaft (22) two ends are square type spline, rotary tillage rotor (8) is installed or is driven wheels (47), and is fixing by bearing pin (27) or (46), directly carries out the rotary tillage operation or draws various small farm machines.

2, according to the described small-sized self-walking tiller of right (1), it is characterized in that described gearbox bottom is provided with driving shaft (22), but its two ends spline involute spline.

3, according to the described small-sized self-walking tiller of right (1), it is characterized in that described rotary tillage rotor (8) is provided with rotary blade group (16), (18), (19) of three groups of symmetries, first group (16) are that welding one inner spline housing (30) directly is connected with driving shaft (22) in interior outer-hexagonal square tube (33) one ends, and fixing by bearing pin (27); Second group (18) are interior outer-hexagonal square tube (33), (35) welding that matches with two sizes, and are fixing by bearing pin (34) equally; The 3rd group (19) are welding one limit dark cutterheads (29) on the basis of second group (18).Each cutter group is provided with 4 blades, comprises 2 right tulwars (20) and 2 left tulwar (17), and blade is fixed on cutterhead (21) by several bolts (28), and is on the outer-hexagonal square tube (33), fixing by bearing pin (34) between every group in cutterhead (21) is welded on.

4, according to the described small-sized self-walking tiller of right (1), it is characterized in that described arm-rest frame (4) be provided with about, the left-right and front-back adjusting device.The up-down adjustment device is made up of inner teeth gear (42), outer tooth (43) and tight fixed bolt (44), can carry out regulating in upper and lower-60 °～+ 60 °; About, the front and back adjusting device is made up of several orifice plates (40), spring locking hook (38), internal axle sleeve (37) and outer shaft (36), about can carrying out in-180 °～+ 180 ° scopes, the adjustment of front and back.

5, according to the described small-sized self-walking tiller of right (1), it is characterized in that described chassis (10)) be provided with symmetrical support (31), be fixed on the casing (12) by several bolts (32), rotary tillage tilling depth adjusting rod (7) is equipped with at the rear portion.

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