Content
Your walk-behind tractor in the household will become an indispensable assistant when processing a vegetable garden, caring for animals, as well as performing a number of other agricultural work. Now the consumer is offered a huge selection of such equipment, but not everyone can afford its cost. This does not mean that you should give up the idea of making your work easier. Now we will look at how to make a walk-behind tractor with our own hands from the available spare parts from old equipment.
Walk-behind tractor device
The general principle of the device of motoblocks of different brands is almost the same. Any unit consists of a motor, gearbox, frame, chassis, clutch and controls. According to this principle, the walk-behind tractor will be assembled with your own hands from old spare parts.
The power of the unit will depend on the engine found. For homemade products, it is better to use an air-cooled motor, for example, from a motorcycle or an arc of similar technology. The walk-behind tractor can even be equipped with an electric motor with a power of 2 kW or more, only it will have to be connected to a three-phase network. It is difficult to find a single-phase electric motor of such power, and if you run a three-phase electric motor through capacitors, then some of the power will be lost.
The clutch on the walk-behind tractor must be installed when using any type of engine. This unit is responsible for transmitting torque to the wheels from the motor. It is good when a native clutch is available along with a gasoline motorcycle engine. In this case, you do not have to adjust anything.
All motors have a high speed, and the walk-behind tractor should move slowly. Reducing the speed will help a gearbox installed between the engine and the driving wheelset. This assembly consists of a set of gears of different diameters, which can reduce the speed of the wheels.
Let's start assembling
When all the necessary parts are selected, you can start assembling the homemade product. The first step is to weld the frame. All units of the walk-behind tractor will be attached to it. We presented the frame diagram for review in the photo.
You can calculate your own sizes, as they may differ from the available units. The frame is made of a metal pipe with a cross section of 32 mm. It will be good if it turns out to bend a one-piece structure, and the jumpers still have to be welded.
In the diagram, the element under number 8 is needed to fasten the mechanism that allows you to tension the chain. A chain reducer and a running gear will be attached to part No. 5. You can also attach a transport trolley here.
The following photo shows an air-cooled motor. In the considered design of the walk-behind tractor, an engine from "Ant" is used.
A mount is installed on the common frame of the walk-behind tractor for the engine. Its diagram is shown in the photo. The design is an arc bent from a pipe with a diameter of 32 mm. Three hinges are welded from a steel strip in places corresponding to the location of the motor mounting holes.
The motor mount should slide over the frame. This is necessary so that you can tighten the chain.After installing the engine, they begin to deal with the muffler. It is diverted to the side so that the exhaust gases do not enter the operator.
The next knot is a chain reducer. A diagram of its device is shown in the photo. The mechanism has two stages, where the speed reduction is due to two sprockets with 57 and 17 teeth.
The wheelset for the walk-behind tractor can be made independently or removed from old equipment. In our example, the unit is removed from the SMZ motorized carriage. In the photo you can see a diagram of additional wheel attachments.
In order for the made unit to be able to process the soil, you need to turn it into a motor cultivator. For this, a T-shaped bracket is made from a square pipe. Its diagram is shown in the photo.
As a result, we got a basic model of a walk-behind tractor. But after all, equipment is needed to perform different tasks, so the next homemade products will be elements of attachments.
The video shows a homemade walk-behind tractor:
Additional equipment for a homemade walk-behind tractor
The assembled walk-behind tractor from old spare parts is only 50% of success. Further, no less difficult work is to be done on the manufacture of iron wheels and attachments.
Lugs
There are many ways to make do-it-yourself grousers for a walk-behind tractor, and the first of them is the simplest one. To do this, take sheet steel with a thickness of 3 mm, cut a strip from it along the width of the tire tread and weld on top, bent at an angle of 120about, metal plates. The strip with the lugs on the tire is pulled together with two studs.
It is optimal to make lugs for a walk-behind tractor with your own hands according to the principle of a factory design. A diagram of such iron wheels is shown in the photo.
The center disc of the lugs is cut from 5 mm thick sheet steel. Strips 50 mm wide are cut from the same metal, after which rings are formed from them. For two wheels you need 6 of them. The hooks themselves are cut from a steel strip with a thickness of 8 mm. All elements are connected by welding. Axles are attached to the center of the discs. It is better to make them adjustable so that it is possible to change the track width of the walk-behind tractor.
The weight of each iron wheel will be about 10 kg. This will ensure that the machine is securely connected to the ground.
Plow
To plow a garden, you need to assemble a plow for a walk-behind tractor with your own hands, the diagram of which we propose to look at in the photo. This typical single body design will fit any machine capacity.
They make a plow for a walk-behind tractor with their own hands using the following technology:
- The rack is made of steel strip 10–12 mm thick. To adjust the angle of inclination and depth of immersion of the plow, holes are drilled in one row on the stand. Alternatively, for adjustment, you can make a retainer moving along the rack.
- The hardest part is arching the blade. For its manufacture, take sheet steel 3 mm thick. It is better to bend it according to the model of a factory plow, otherwise you can make a mistake with the angle. The finished dump is tempered by heating it red-hot over a fire, and then thrown into alkaline water.
- The ploughshare is made of high-alloy steel. It is fastened to the dump with rivets so that their caps do not protrude to the surface.
All elements are assembled according to the proposed scheme. When the plow for the walk-behind tractor is completed with their own hands, they try to plow the land. If all the elements are kept at the correct angle, and the share is well sharpened, then the plow will smoothly cut the soil layer without jerking.
Harrow
The next element of the attachment is to make a harrow for a walk-behind tractor with your own hands, which are rotary, disc and tooth.
The simplest design is the tine harrow. For its manufacture, the frame is first assembled, and then teeth 25-50 mm long are welded at the same distance.
The scheme for making a tooth harrow is shown in the photo.The frame is welded from a square tube. It is better not to weld the teeth, but to cut the threads and fasten them with nuts. In the event of a breakdown, it will be easier to change them.
For longitudinal travel in a home-made harrow, you can install a hinge from a GAZ 53 car. In addition to the towing device, you will need two rods. They will provide better harrow control.
Truck
To transport goods, you need to make a cart for a walk-behind tractor with your own hands, the diagram of which is shown in the photo.
There are different design options, from simple bodies to dump trucks. In any case, it is imperative for the cart to do:
- The frame is welded from a channel, angle or pipe.
- The body can be made: with a tailgate, opening tailgate and sidewalls, or fully fixed. The best material for making is tin, and in the absence of it, you can use a board.
- A drawbar is installed for hitching to a walk-behind tractor. The length is selected individually so that it is convenient to operate the equipment.
- The driver's seat can be fitted in the body or attached to the drawbar.
- A hinge is needed to connect the hitch of the walk-behind tractor to the drawbar. It is better to order it in a lathe or remove it from other equipment.
- The axle with the wheelset can be removed from other equipment or made from a piece of pipe. But then you have to grind bushings, fit bearings and fit hubs with wheel disks.
If it is supposed to transport heavy loads, then it is better to make the trolley on four wheels. In this case, it is imperative to install shock absorbers.
The video shows a tipper truck:
Conclusion
Self-production of a walk-behind tractor and additional equipment is a rather complicated matter. However, the cost savings are impressive.
