CAN MOTOR-PLOW | MODEL CONSTRUCTION

In one of the episodes of the Central television can viewers met Amateur designer Oleg A. Ostapenko. We have become accustomed to the fact that “computers” introduces us to people whose technical work is always intriguing, surprising by the unexpected solution of various engineering problems. But they usually show one to two developments. Ostapenko did not just surprised, and amazed by the breadth of their Hobbies. He is the author of two original mini-tows, cross-country vehicle-amphibian, “forest” motorcycle and even discolored. In our “Panorama” (see “M-K” № 1, 1986) is a multiple of, we spoke about the success in the technical work of this amazing man. Today we offer readers acquainted with the description and drawings of one of the most popular designs O. Ostapenko — mini tug.

Tillers are usually built based on the desire to facilitate the work first of all in the garden. Hence, design solutions, taking account of the aggregation with various kinds of plows, cultivators, harrows and other tillage implements.

I was up your behind tractor for mechanization of works connected with movement of goods over short distance and the terrain, full of slopes. Not to say that it looks unusual. A combination of walk-behind truck Amateur designers used widely. However, there is in my car features. About them I would like to tell.

My cultivator is a compact two-wheeled tug, articulated with a cargo platform. Controlled via the steering rod, which the driver keeps moving on foot or placed on suspension seat.

Fig. 1. General view of the cultivator:

1 — truck, 2 — wheeled unit, 3 — axle block, 4 — drum, 5 — the frame of the tow, 6 — circuit, 7 — reducer, 8 — cover, PTO, 9 — arc rotary unit, 10 — motor, 11 — fuel tank 12 — axis-pin of a rotary unit, 13 — swivel, 14 — shock 15 — bolt pipe wheels, 16 steel wheels 17 — steering linkage, 18 throttle lever, 19 — brake lever, 20 seat, 21 — spring, 22 — tripping.

The design of the tug a simple and subordinated to the tasks that it performs. The main one was to push the cart (platform). So the wheels (scooter) semi-detached — disks rigidly connected by four bolts. Between the discs are gripped by two massive goals: they are designed to increase the weight of the tow, which improves the grip of the wheels with the ground. In the left-hand washer, which is welded to the hub unit, made groove here and planted the ring that carries two important elements of the design of the tug: the reel of the winch with steel cable Ø 5 mm and a length of about 50 m and driven sprocket (45 teeth), riveted the twelve pins-rivets. The ring rotates freely on the washer — in this case the chassis is disconnected from the engine, and the tillers can be moved by pushing it, say, to the load. But it is necessary to rotate the handle within the right of the fly wheel (in the drawing, the tear) as the spring loaded rod of the stopper enters the hole in the ring and blokiruet wheels with the engine.

To the left of the disk is welded to the brake drum scooter.

The winch is designed for climbing up steep slopes, when the grip of the wheels with the ground is insufficient. The rope unwound, refers to the place where you want to deliver the goods, and attach the hook to the tree. Revolving with the wheels, the coil pulls the rope, and walk-behind itself pulls up a slope.

Provides another means of increasing the traction characteristics of a tow — block metal wheels with corner cleats (they are clearly visible in figure 1). Design it — with the same washers, hub, ring, star (but no winch).

As the power unit used small engine chainsaw “Friendship 4” capacity 4 HP it has an automatic clutch of the centrifugal type, comprising with increasing crankshaft revolutions.

The motor is connected to the housing of the reduction gearing (1 : 16). Carter the latter is sealed with gaskets, filled with hypoid oil and provided with a flange (rpm), similar to the flange connecting the motor to the chainsaw.

The reducer attached to the frame of the tow at three points: U-shaped bar and front bracket. The output sprocket is on the driven sprocket wheel unit and is connected with it by a chain.

Fig. 2. Construction of the cart:

1 — Desk, 2, 3 — shaped pipe 4 — bracket 5 — front cross member, 6 — rails, 7 — rear cross member, 8 — spring, 9, 12 — bolt stops, seat height adjustment, 10 — bracket, 11 — for-ending the spar.

Fig. 3. Swivel:

1 — arm, 2 — arm pivot bushings, 3 — rotating Bush, 4 — rocking 5 — cross tube tie rod, 6 — tube rotary unit, 7 — clamp, 8 — strut.

Fig. 4. The frame of the tow:

1 — front bracket, 2 — zone, 3 — U-shaped crossbar, 4 — bolt М16Х2.

Fig. 5. The device of the wheel unit:

1 — hub, 2 — bolt M10X1,25 (4 pieces), 3 — arm stopper, 4, 10 — wheels, 5 — stud retainer, 6 — spool winch, 7 — wire, 8 — pin-rivet, 9 — sprocket driven, 11 — brake drum, 12, 14 — washer, 13 — ring.

Fig. 6. Steering rod:

1 bearing No. 201, 2 — attenuator, 3 horned, 4 — rod, 5 — the screw of adjustment of length rod, 6 — clamping nut, 7 — rod, 8 — wire throttle, 9 — cable brake lever, 10 — lever.

Fig. 7. The use of the cultivator on the export of boulders.

Fig. 7. The use of the cultivator on the removal of boulders:

1, 2, 3 — sequence of operations.

Fig. 8. The tow plow:

1 — the steering rod, 2 — more emphasis 3 — plow, 4 — the carrier of the plow, 5 — wheel block, 6 — motor, 7 — the frame of the tow. 8 — boot 9 — wheel of the trunk.

Fig. 9. The bearer of the plow:

1 — arc, 2 — beam, 3 — beam, 4 — bolt-emphasis fine adjustment of the angle of the plow.

From the opposite engine of the shank of the input shaft of the reducer is closed by a removable cover, you can remove the power to drive the mower, circular saws or the pump for pumping of water transported in tank capacity 250 l

The tank is of riveted aluminum sheets and parts, sealed and provided with a hinged lid. It is attached to the truck with four bolts: two on the frame, two on the steel wheels. The tank is installed inclined to the front wall is formed with stanchions and side members a closed force triangle, as the other special elements, the reinforcing frame no.

Bogie frame welded from tubes of rectangular cross section. Back to the endings of the side members is attached to the steel wheels, and rear crossmember bracket on a special — steel strip of thickness 10 mm with driver seat, running boards and bolts-stops, seat height adjustment.

Front to the posts parallel to each other welded two curved curly pipe Ø 25 mm with mounting brackets swivel knot tug.

Swivel is a structure of welded tubes and strip components. To the frame of the tow it is attached at three points: U-shaped bar and front bracket.

The rotary sleeve belongs to the most loaded parts. It is associated with a pipe node wide steel strip, and carries two ball bearing in the top socket — angular contact (No. 446203) in the lower radial (No. 203). They inserted the axle-stud flange to support the inner ring of the angular contact ball bearing. Two horizontal axis earrings-stud brackets connected to the curved pipe of the truck.

Pipe rotating unit end bracket to the frame of the tow (bottom) and cross tube tie rod (top). The ends of the cross tubes are threaded and welded to the middle of her rocking the stock spring shock absorber steering rod. The latter is designed to control the cultivator and equipped with levers and mechanisms. To a transverse tube it is suspended by a stag bearing No. 201. The stag actually welded rod with shock absorber configured on the weight of all the controls that the driver did not feel their weight.

The rod end is provided with a clamping washer and screw to adjust the length to suit the height of the driver. Throttles and brakes are located on the crossbar.

The frame of the tow is perhaps the simplest in design node of the whole machine. It is welded from three steel strip parts and two bolts М16Х2. The front bracket has three openings to connect the arc of the rotary unit and the gearbox. The last two oblong, serve to tension the chain.

U-shaped bar carries the bolts and the springs of the gearbox mounting and bracket rotary unit. She preparen to the belt frame, in which are drilled a series of holes for bolt fixing brake disc, the axle of the wheel unit and the attachment of interchangeable working bodies. The latter is used in the case where a tug converted for processing of soil in the garden. In addition to delivering water and tillage, tillers can also be used for uprooting of stumps, harvesting from the fields of boulders. You only need the cart to remove the middle crossmember and put a tripod with a winch and grapple. Negativ tillers on the boulder, grab it grab, lift. Placing bars or wooden bars, put them on the boulder and transported to the edge of the field.

O. OSTAPENKO, Vinnica

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