CN2307709Y - Multifunction miniature hand tractor - Google Patents

Abstract

The utility model relates to a multifunctional miniature hand tractor, which is composed of a tractor head and a towing device, wherein the tractor is composed of a machine frame (4), a diesel engine (5) turning joint (6), a gearbox (2), a clutch (3), a front wheel (1) and a handle rack (8), etc.; the towing device comprises a trailer, a towing plough, a drag harrow, a towing roller, etc.; the shape and the structure of the trailer and the towing plough, the drag harrow and the towing roller of a tilling and preparing machine of the utility model are identical with those of the traditional hand tractor; the front ends of bridge connecting rods of the utility model are provided with connecting plates (15) which can be matched with a connecting clamping head (7) of the turning joint of the tractor head. The tractor has six speed change gears, and is capable of transporting goods as well as tilling in the farmland. One tractor has multiple functions, and is capable of being widely suitable for requirements in the country.

Description

The multifunction micro walker tractor

The utility model relates to farm machinery, and is especially relevant with agricultural walker tractor.

The widely used walker tractor function ratio in rural area is more single at present, and range of use is narrower.The workers and peasants' 12 type hands that generally use as China south drag machine and little Taurus hand to drag machine only to be suitable for transportation and haul goods, and the ploughing and weeding operation is difficult to go to the field; And the ploughing and leveling machine for paddy field that the Hunan the produces transportation that then can only the field farming can not run away.Above-mentioned two class agricultural machinery can not take into account mutually, have influenced their value of service and promoted extensions in the rural area.

The purpose of this utility model is that a kind of multifunction micro walker tractor will be provided, and it can not only transport and haul goods, and also can plough simultaneously and rake the soil level, and realizes a tractor serves several purposes.

The utility model mainly is made up of locomotive head and trailed equipment.Locomotive head again by frame, diesel engine, turn to parts such as coupling head, change speed gear box, power-transfer clutch, front-wheel and arm-rest frame to form.Head breadth framing is the right-angled triangle frame of both sides symmetry.Front upper part in frame is equipped with diesel engine, is equipped with in the upper back of frame and turns to coupling head.Turn to the coupling head both sides to be connected with arm-rest frame, its lower end is to be used to connect the connection chuck that assembling device is pulled in the back.Connect in the upper and lower horizontal yoke plate of chuck a ball bearing of main shaft respectively is housed, a vertical duction bar is housed between two bearings, this deflecting bar is by two connecting clamping plate are being connected the connection bridge bar front end of trailed equipment with bolt vertical yoke plate up and down.On a side of frame, change speed gear box is housed, 13 variable gears such as A, B, C, D, E, F, G, H, I, J, K, L, M are housed in the change speed gear box, its ratio of number of teeth is for being 27: 19: 35: 34: 15: 40: 27: 27: 16: 53: 22: 15, wherein A and C, B and D, F, E and H, G, I and J, L and M are coaxial respectively; And independent one of K.In addition, between A and C gear, speed is housed and once dials retaining, the speed secondary is housed between H and F dials retaining, the two-speed reversing is housed between L and M dials retaining.Its AC gear wheel shaft is an input shaft, and it connects the power-transfer clutch power wheel, and its K gear wheel shaft is an output shaft, and it connects front-wheel and high-pressure oil pump impeller.The drive connection of fast 1 retaining of this change speed gear box is A-B, D-E, H-I, J-K, fast 2 retaining drive connections are A-B, D-E, F-G, J-K, slow 1 retaining drive connection is C-D, D-E, H-I, J-K, slow 2 retaining drive connections are C-D, D-E, F-G, J-K, the 1 retaining drive connection that falls is A-B, D-E, F-L, M-G, J-K, and the 2 retaining drive connections that fall are C-D, D-E, F-L, M-G, J-K.The change speed gear box outside is connected with power-transfer clutch, and power-transfer clutch power wheel and diesel engine master prop up and be connected with belt between the wheel.Change speed gear box and power-transfer clutch are connected with operating handle separately respectively.Below the frame center an independent front-wheel is installed, the front-wheel wheel shaft links to each other with output shaft of gear-box.Trailed equipment comprises trailer, drags plough, drag harrow and drag and roll etc.The shape and structure of its trailer drags the trailer shape and structure of machine identical with common hand, its drag plough, drag harrow and drag the shape and structure that rolls then with the dragging plough, drag plough and drag the shape and structure that rolls identical of common ploughing and leveling machine for paddy field.Different is, at their connection bridge bar front end one vertical yoke plate is arranged all, and the symmetrical bolt hole of two rows is arranged on this vertical yoke plate, by bolt, it can be fixedly connected on the connection chuck of preceding and locomotive head.Also having, as further improvement of the utility model, is when trailed equipment is trailer, can add a dumping car device on locomotive head and trailer.This device is by fuel tank, high-pressure oil pump, and control rotary valve and oil top are formed.Fuel tank is contained under the connection bridge bar of trailed equipment, and there is a pressure limiting by pass valve in the oil circuit exit that it connects the control rotary valve.High-pressure oil pump is attached on the change speed gear box, and it is oil-filled by H, F, the E shaft drive pressurization of change speed gear box.The control rotary valve is contained on the connection bridge bar and locates near the operator's saddle position, and it is being communicated with fuel tank, oil pump and You Ding by high pressure fuel pipe.The oil top is installed in trailer wagon box below, and its top is sleeved in the trepanning of wagon box crossbeam.

The utlity model has following advantage: 1, because its change speed gear box has many grades of speed changes, take into account at a slow speed soon, it both can have been transported haul goods, the ploughing and weeding of can going to the field again can be finished the multi-mode operation task.2, because its locomotive head is simple in structure, so face cost of manufacture low (2000～3000 yuan of prices), overall dimensions little (700 * 1000 * 800) make its purchasing power that can extensively adapt to the peasant, can extensively adapt to narrow transport routes in southern rural area and narrow farmland operation again.3, owing to turn to Connecting jont reasonable in design, make turn to flexible, easy to operate.When 4, the change speed gear box reverse gearwheel does not reverse gear need not, life-saving reduces wear.

Down and the utility model is described in further detail in conjunction with the accompanying drawings and embodiments:

Structural representation when Fig. 1 is the utility model band trailer;

Fig. 2 is that the utility model band drags the structural representation when ploughing;

Structural representation when Fig. 3 is the utility model band drag harrow;

Fig. 4 is that the utility model band drags the structural representation when rolling;

Fig. 5 and Fig. 6 are the vertical and horizontal cross-sectional view that turns to coupling head;

Fig. 7 and Fig. 8 are the forward and the side direction cross-sectional view of change speed gear box;

Fig. 9 is a trailer dumping car apparatus structure scheme drawing.

Among the figure 1, front-wheel 2, change speed gear box 3, power-transfer clutch 4, frame 5, diesel engine 6, turn to coupling head.7, connect chuck 8, arm-rest frame 9, connection bridge bar 10, deflecting bar 11,12 connection clamping plate 13,17 horizontal yoke plates 14,16,18, bolt 15, vertical yoke plate 19, high-pressure oil pump 20, fuel tank 21, pressure limiting by pass valve 22, control rotary valve 23, You Ding

As Fig. 1～shown in Figure 4, the utility model is made up of locomotive head and trailed equipment two big portion bodies.Locomotive head again by head breadth framing (4), diesel engine (5), change speed gear box (2), turn in coupling head (7), front-wheel (1) and the arm-rest frame parts such as (8) and form.This head mounting rack (4) is the right-angled triangle frame of a both sides symmetry, and it is formed by angle steel, channel-section steel weldering system.Front upper part in frame is equipped with diesel engine (5), and diesel engine is common fraction horsepower diesel engine, and its tractive output is 3～10 horsepowers.Be equipped with in the back upper end of frame and turn to coupling head (6), arm-rest frame (8) is housed, the connection chuck (7) that is used to connect the back trailed equipment then is housed in its posterior end on the both sides, back upper end that turn to coupling head.Connect chuck as shown in Figure 5 and Figure 6, in its upper and lower two horizontal yoke plates (13,17) ball bearing of main shaft is housed respectively, be set with a vertical duction bar (10) between two bearings, this deflecting bar connects clamping plate (12,11) by upper and lower two and is captiveing joint with bolt (14,16,18) and report the vertical yoke plate (15) that mounts connection bridge bar (4) front end of putting.Change speed gear box (2) is housed on a side of frame.The change speed gear box inner structure is equipped with 13 variable gears such as A, B, C, D, E, F, G, H, I, J, K, L, M as shown in Figure 7 and Figure 8 in its case, its ratio of number of teeth is 27: 27: 19: 35: 34: 15: 40: 27: 27: 16: 53: 22: 15; Wherein A and C, B and D, F, E and H, G, I and J, their are coaxial respectively for L and M; Independent one of K.In addition, speed is housed between A and C once dials retaining, the speed secondary is housed between H and F dials retaining, two-speed is housed between L and M reverses gear and dial retaining.In this change case, its fast first gear drive connection is A-B, D-E, H-I, J-K, and speed per hour is about 30KM; Its fast second gear drive connection is A-B, D-E, F-G, J-K, and speed per hour is about 11KM; Its slow first gear drive connection is C-D, D-E, H-I, J-K, and speed per hour is about 19KM; Its slow second gear drive connection is C-D, D-E, F-G, J-K, and speed per hour is about 4KM; Its drive connection of falling the first gear is A-B, D-E, F-L, M-G, J-K, speed per hour is-7KM about; Its drive connection of falling the second gear is C-D, D-E, F-L, M-G, J-K, speed per hour is-and below the 2KM.The input shaft of this change-speed box is the AC axle, and it links to each other with the power-transfer clutch power axle; Its output shaft is the K axle, and it links to each other with front wheel spindle; Its additional output shaft is H, F, E axle, and it links to each other with the high-pressure oil pump impeller of dumping car device.Power-transfer clutch (3) is equipped with in change speed gear box (2) outside, is connected with drive belt between the driving wheel of the power wheel of power-transfer clutch and the diesel engine of frame front (5), and belt is a cone belt.Be connected with operating handle separately on change speed gear box and the power-transfer clutch respectively.Below frame center, an independent front-wheel (1) is installed, the front-wheel wheel shaft output shaft of gear-box of ining succession.Trailed equipment comprises trailer, drags plough, drag harrow and drag and roll etc.The identical (see figure 1) of shape and structure that the shape and structure of its trailer and common hand drag the trailer of machine, its drag plough, drag harrow and drag the shape and structure that rolls then with the dragging plough, drag harrow and drag the shape and structure that rolls identical (seeing Fig. 2, Fig. 3 and Fig. 4) of common ploughing and leveling machine for paddy field, it is characterized in that, connection bridge bar (9) front end at them all has a vertical yoke plate (15), this plate has the symmetrical bolt hole of upper and lower two rows, by bolt, on the connection chuck (7) that is bound up on the front head that can be fixed.As further improvement of the utility model, be when trailed equipment is trailer, can on locomotive head and trailer, add a dumping car device.This installs as shown in Figure 9, and it is made up of fuel tank (20), high-pressure oil pump (19), control rotary valve (22) He Youding (23), and fuel tank (20) is contained under the connection bridge bar (9) of trailer, and there is a pressure limiting by pass valve (23) in the oil circuit exit that its connects control rotary valve.High-pressure oil pump (19) is attached on the change speed gear box (2), and it is oil-filled by additional output shaft (H, F, E axle) the transmission pressurization of change speed gear box.Control rotary valve (22) is contained on the connection bridge bar and locates near the operator's saddle position, and it is being communicated with fuel tank (20), oil pump (19) He Youding (23) by high pressure fuel pipe.Oil top (23) is installed in trailer bucket below, and its top is sleeved in the trepanning of wagon box crossbeam.

Claims (4)

1, the multifunction micro walker tractor, form by locomotive head and trailed equipment two large divisions, it is characterized in that: locomotive head is by frame (4), diesel engine (5), turn to coupling head (6), change speed gear box (2), power-transfer clutch (3), front-wheel (1) and arm-rest frame (8) are formed, frame (4) is the right-angled triangle frame of a both sides symmetry, front upper part in frame is equipped with diesel engine (5), be equipped with in the upper back of frame and turn to coupling head (6), turn to both sides, coupling head rear end to be connected with arm-rest frame (8), its posterior end is for connecting chuck (7), change speed gear box (2) is housed on a side of frame, the change speed gear box outside is connected with power-transfer clutch (3), be connected with belt between power-transfer clutch power wheel and the diesel engine driving wheel, change speed gear box and power-transfer clutch are connected with operating handle separately respectively, below the frame center front-wheel (1) is installed, the front-wheel wheel shaft links to each other with output shaft of gear-box; The connection bridge bar (9) of trailed equipment is preceding a vertical yoke plate (15), and symmetrical two rows bolt hole is arranged on this plate, and it is connected on the connection chuck (7) of front locomotive head by bolt.

2, multifunction micro walker tractor according to claim 1, it is characterized in that: the upper and lower horizontal yoke plate (13,17) of the connection chuck (7) of locomotive head respectively is equipped with a ball bearing of main shaft, be set with vertical duction bar (10) between two bearings, this deflecting bar is by the vertical yoke plate (15) of the upper and lower two connection clamping plate (12,11) and connection bridge bar (9) front end of bolt (14,16, the 18) trailed equipment that is being fixedly connected.

3, multifunction micro walker tractor according to claim 1, it is characterized in that: A, B, C, D, E, F, G, H, J, K, L, a M13 variable gear are housed, wherein A and C, B and D in the change speed gear box, F, E and H, their difference of J, L and M are coaxial, independent one of K, and fork shift of speed is housed between A and C, speed secondary fork shift is housed between H and F, two-speed reversing fork shift is housed between L and M, and its A-C axle is an input shaft, connects power-transfer clutch (3) power wheel; Its K axle is an output shaft 1, connects front-wheel (1).

4, multifunction micro walker tractor according to claim 1, it is characterized in that: when trailed equipment is trailer, on locomotive head and trailer, can add a dumping car device, this device is by fuel tank (20), high-pressure oil pump (19), control rotary valve (22) He Youding (23) forms, fuel tank (20) is contained under the connection bridge bar (9) of trailer, the oil circuit outlet that it connects control rotary valve (22) has a pressure limiting by pass valve (21), high-pressure oil pump (19) is attached on the change speed gear box, simultaneously, the output shaft 2-H of change speed gear box, F, the E axle connects the oil-filled impeller of high-pressure shaft pump (19), control rotary valve (22) is contained in the last position near operator's saddle of connection bridge bar (9), it is being communicated with fuel tank (20) by high pressure fuel pipe, oil pump (19) He Youding (23), oil top (23) is installed in trailer bucket below, and its top is sleeved in the trepanning of wagon box crossbeam.

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