How and from what to make a mini tractor with your own hands? Alice in Wonderland Alice in Wonderland: Minitraktor. How to make a mini-tractor yourself from a walk-behind tractor, a motor-cultivator or other units and improvised tools with your own hands at home. Technologies, with

The presence of your mini-tractor in the household greatly simplifies the implementation of a large amount of household tasks. One of its main advantages is economy and mobility in management in limited terrain. It is enough to equip your home-made tractor with all additional devices, and it will be an indispensable assistant when processing not very large land areas.

In the context of running your business, associated with the production of agricultural goods on personal plots, the tractor is an effective technique. Since not everyone can afford to buy new special equipment at the initial stage of business development, it is absolutely within the power of those who have basic knowledge of the art of metalwork to build their own homemade mini-tractor and everything for it from the spare parts at hand.

With your homemade mini-tractor 4x2, you can implement the entire list of specific works:

• snow removal;
• transportation of not very large loads;
• cleaning household rubbish, as well as various vegetation;
• hay making;
• planting and digging vegetables, etc.

There are quite a few options for the production of homemade mini tractors. Some homemade things are designed on the basis of engines from old domestic or foreign cars and motorcycles. Others are selected from existing equipment such as a mini tractor.

Making a homemade mini tractor

A do-it-yourself tractor includes a complex set of structures and elements directly interdependent with each other. Before starting work, you should decide on the design of the homemade product, which you can read about on the forum. Consequently, the presence of drawing materials at hand will greatly facilitate its production.

To realize production at the proper level, the craftsman will need:

• study of basic knowledge of adaptation;
• the presence of a single row of assemblies (boxes, power units) and mechanisms.

In addition, the presence of the layout and drawings will serve as a guide in the direction of the formation of a homemade device.

Mini tractor design

The described design was invented and tested in practice, which you can read about on the forum. Make such a mini tractor with your own hands allowed with scrap: various units and elements from the previous serial cars produced by the domestic industry.

The unit can be equipped with a huge set of plug-in trailed and suspended implements. Thanks to this, the mini-tractor can be considered a multipurpose assistant in the home garden. It is allowed to be used for the purpose of plowing and harrowing, cultivation and hilling, and, in addition, for the purpose of other activities related to the cultivation of the land and the care of plants.

This tractor is also permitted use in conjunction with a single-axle cart to transport various household goods, garbage from the site, soil, sand. For this, a slight modification of the tractor is carried out, and the driver is seated in front of the cart.

What will the mini tractor be made of?

The first thing that needs to be done before assembling the equipment is to navigate what nodes it consists of, which you can read about on the forum.

The simplest adaptation of a compact tractor includes the following elements:

• hydraulic motor (a walk-behind tractor or a motorcycle can act as a motor);
• a power frame in which all other installations are fixed;
• brake system;
• assembly with brake discs;
• chassis, including wheel axles and wheels;
• suspension equipment fastening system;
• steering column;
• comfortable chair for the operator;
• rear and front lights.

Each of the mentioned parts must be bought, found and assembled based on a clear general drawing in order not to disturb the proportions of the unit.

How to make a homemade mini tractor?

For the purpose of designing such a technique, many methods are used, however, as a rule, the algorithm is as follows:

Drawings for a mini-tractor can be found on the Internet, choosing the right type or developed personally, if you have the knowledge of a mechanic.

Suspended equipment types

To increase the perspective interval, this device can be additionally equipped with overhead equipment, which can be done using existing improvised means.

So, You can make the following types of hanging equipment yourself:

• various seeders;
• hillers and soil cultivators;
• plows with one-, two-body, simple and rotary;
• collapsible mowers for harvesting forage and more.

Over time, this kind of tractor can be upgraded by identifying auxiliary devices that will increase the comfort and safety of driving. In addition, such a unit, according to its own personal useful and multifunctional distinctive features, will in many ways overtake most industrial modifications.

Agricultural walk-behind tractors have one serious drawback - the operator has to walk along the treated area with them on foot. As a result, fatigue sets in rather quickly, and the time to complete the work increases, which leads to a sharp decrease in the efficiency of labor costs. Another thing is a mini-tractor, which has a full wheelbase and steering. But not everyone can afford to buy such equipment. Therefore, in the agricultural environment, you can increasingly find home-made mini tractors, which are designed on the basis of professional or semi-professional walk-behind tractors.

Converting a walk-behind tractor into a mini tractor: highlights

Unlike amateur equipment, professional and semi-professional equipment has more power. For example, from a walk-behind tractor with a 9 hp diesel engine. you can make a pretty decent mini-tractor for plowing and cultivation. Ultimately, it all depends on the goals that the owner of the modifiable vehicle is going to achieve.

Designing and assembling a homemade mini tractor is not an easy task, but it can be done. And to successfully solve it, you need to focus on two points:

1. Development of a body and frame, as well as a diagram of their connection with the basis of a mini-tractor - a walk-behind tractor.
2. Development of a kinematic diagram.

The homemade frame and body are made of metal corners or profiled pipes. When calculating the structure, it is necessary to take into account the ratio of its weight to the power of the motor, as well as the resistance that the machine will overcome when performing various types of work.

If you choose a powerful walk-behind tractor as the basis for a home-made mini tractor, this allows you to use ready-made car or motorcycle trailers. Moreover, the leading manufacturers of motoblocks have long provided for the constructive possibility of connecting such trailers to manufactured equipment.

The kinematic diagram of a home-made mini-tractor is a set of design solutions that provide the transfer of torque from the motor-block engine to the driving (mainly rear) wheels. When calculating, it is necessary to distribute the load on the driving axle evenly - both reliability and durability, and functionality, that is, the possibility of using technology, directly depend on this.

DIY mini tractor: where to start?

In fact, there are many options for self-designing a mini tractor. However, the principles are used everywhere approximately the same:

1. swivels towards the operator and locks onto the frame.
2. Control is carried out using steering rods.
3. The hydraulic drum brake is applied.
4. Pedal control is used for brake and clutch.
5. Manual control is used for the accelerator and attachments.
6. The operator's seat is located above the rear drive axle.

One of the easiest ways to create a mini tractor with your own hands is to buy an adapter - a two-wheeled cart with a seat for the operator and an aggregate system (for installing attachments).

Obviously, various parts will be needed to assemble a mini tractor. They can be easily found among automobiles. For example, a drum brake for driving wheels, a steering rack and pedal control units can be taken from a VAZ car. In the same way - by searching on the auto parts market - both the seat and other structural parts for a homemade mini-tractor are selected.

But in addition to spare parts, you must have at hand a whole arsenal of tools - a welding machine, a drill, a circular saw, wrenches, etc. And it is very desirable that in the process of assembling a mini tractor you have access to a specially equipped workshop or, if necessary, can use the services of specialists in welding, milling, plumbing and car repair.

Mini tractor frame

The chassis is the basis of the mini tractor. Its main quality should be reliability, however, you need to carefully monitor the total weight of the structure in order to ensure normal adhesion of the wheelbase to the soil when performing work and at the same time not overload the engine.

For the manufacture of the frame of a homemade medium-power mini-tractor, a lightweight channel, a profiled pipe or a metal corner is suitable. The dimensions of the structure, which is assembled by welding, must correspond to the dimensions of the machine. Along the frame contour, it is necessary to make holes for mounting and fixing the structural elements of the minitractor.

The ratio of frame weight and strength should be optimal. It is not worth overloading the structure with additional stiffening ribs, as well as saving on metal, sacrificing overall reliability indicators.

Before you start assembling the frame, you need to decide which trailers and you are going to use when working with it. And in order not to lose thought in the design process, before starting work, drawings of the future machine and its main units with basic dimensions should be completed. To do this, you can use ready-made documentation that needs to be adapted to the specific parameters of your mini tractor.

Front and rear axles

These assemblies are created from individual spare parts and assemblies taken from cars or even trucks or other agricultural equipment. However, you will have to do some details yourself, as well as the assembly itself.

To make a front axle, you will need:

• cross beam;
• bushings for supporting pivot axes;
• axle bushings;
• push the wheels;
• (ball and roller);
• bolted connections.

A section of a profiled pipe or metal corner will perfectly cope with the function of a crossbeam. Structural steel 45 is suitable for the manufacture of half-axle bushings. The slewing bearings are made of a profiled pipe, modified for the installation of bearings, and are closed with steel covers made of steel grade st3. The front axle assembly, consisting of a cylindrical cage and roller bearings, is welded to the center of the crossbeam. Using large bolts, the bridge must be fixed to the bushings in the crossbeam of the frame.

The tightening force of the bolted connections is responsible for the amount of play of the front axle relative to the design of the minitractor. Too rigid, as well as too loose fastening negatively affects the driving comfort, therefore the play must be optimal.

The assembly of the rear axle is carried out in a similar way. The finished structure can be borrowed, say, from a UAZ car. The long stocking of such a bridge will need to be shortened so that standard short axle shafts can be used. It will not hurt to protect the rear axle, or rather its welded joints from possible impacts during operation. For this, a support is used - a metal corner, applied along the welded seams of the prefabricated bridge structure.

Wheelbase and kinematic diagram

The choice of wheels for a homemade mini tractor deserves special attention. It is quite possible to use wheels from a car, however, the dimension should be observed here. The optimal dimensions for wheel rims are 12-14 inches. When choosing a smaller diameter, there is a risk that the machine will bury its nose into the ground during operation. On the other hand, if the front wheels are too large, the operator will have to exert tremendous effort to complete the maneuvers. However, to facilitate the process of controlling the machine, you can always use the power steering from a car or other agricultural machinery.

Mini tractor wheel tires must have developed lugs. This will increase the maneuverability of the machine, reduce the load on the chassis and facilitate the steering process.

As for the kinematic diagram, it is better to use ready-made options, the search for which does not take much effort at the moment. The scheme must be adapted to the parameters of the nodes that you are going to use to create a mini tractor. It will be useful to consider the possibility of connecting attachments, which will greatly increase the functionality of a home-made machine.

Control system and operator's seat

After the manufacture and installation of the chassis, you can proceed to the implementation of the kinematic diagram and installation of the control system. The most important thing in this business is to place it correctly. The front seat of a passenger car, which is easy to find at car services and in workshops that disassemble vehicles, will perfectly cope with this role.

The steering wheel should be at the optimum height for the operator. The steering wheel should not interfere with the free placement of the knees - it must be mounted so that when sitting, working with it does not cause discomfort.

All the necessary parts for foot, hand and lever control of the machine and its functional units can be found in the same place as the seat and all other spare parts - in the workshops or on the market.

Engine installation and bodywork

After assembling the undercarriage, implementing the kinematic diagram and installing the operator's seat with the control system, you can proceed to the installation of the main unit of the minitractor - the engine. To securely fix it on the frame, you should use a special slotted plate - it will also give the chassis additional rigidity. Next, you need to lay the electrical and mechanical circuits of the control system, connect and configure the operation of the control system.

The body cladding is made at the request of the user, however, it is still better to close some components and structural elements. This will prevent contamination and failure in case of contact with foreign objects and soil.

This article will describe the process of making a homemade mini-tractor with your own hands (at the end of the article, a video is provided), talked about the types of this agricultural technique, the benefits of using.

The field of agricultural activity for many of us has associations with soil cultivation. But in order to grow any vegetables, fruits, berries, it is necessary not only to plow the land and fertilize it, but also to constantly water and get rid of weeds. A mini tractor will be an excellent assistant in solving such problems. This agricultural technique greatly simplifies the work.

Although the mini tractor is small in size, it copes with the tasks set successfully: plowing the soil cover, loosening it, mowing grassy vegetation and other various works that have a connection with the cultivation of the land for planting different plants.

Large enterprises that are engaged in agricultural activities use domestically produced mini tractors. How to be an ordinary farmer? Due to limited funds, private farmers can use homemade agricultural technology.

Kinds

In total, there are three types of this agricultural technique:

1. A technique that has many functions, capable of performing a variety of work, for example, tillage, mowing grassy vegetation, disposal of garbage, and the like. These mini tractors are equipped with a motor having an average power - this will be acceptable for processing approximately six hectares of land. Also, tractors can be equipped with mounted-type devices, which will help to increase a number of tasks.
2. Tractors whose task is only to mow the grass and get rid of debris. This machine is only capable of processing two hectares of land. This type is especially often used for lawn mowing.
3. Rider. This is the last type of mini tractor. The main task of this agricultural technique is to fertilize the soil and introduce minerals. When equipped with additional equipment, it can also be used for soil treatment. However, the area of ​​the cultivated area in this case will be small.

Advantages and disadvantages

It should be noted right away that these home-made machines are mainly used by private farmers. The main advantages of DIY mini tractors:

1. Excellent deep processing of the land. If the soil to be cultivated is rocky, it is very difficult to physically cultivate it by hand. Therefore, a mini-tractor in this case is irreplaceable, which will cope with the task in a short period of time;
2. This agricultural technique is very convenient to use on small plots for processing huge fields (more than ten hectares), only an ordinary standard tractor is suitable.
3. Overall low cost. A DIY mini tractor can save you a decent amount of money. At the same time, all expenses will include financial resources spent on the necessary materials for the construction of agricultural machinery. Also, additional costs for repair work are not required;
4. The mini tractor can be equipped with additional devices, thereby you can increase the number of functions of this machine. The structure does not have a huge weight.

A homemade unit also has a number of disadvantages:

1. An owner who wants to make a mini-tractor on his own will have to look for materials himself, and this is a rather lengthy process;
2. Some rare component may be used to assemble it can be very difficult to find. However, materials are used for assembly that are very easy to find on the market, and they can be easily replaced in case of breakdown;
3. For a hand-made tractor, you need to get a permit to drive on the roads of the city, otherwise you can get a serious fine.

But these are not such serious disadvantages, there are more advantages and they are more significant.

Assembly guide

Observe a certain algorithm of actions for assembling this agricultural technique:

1. At the very beginning, you need to make a frame. For this, a steel channel is used. Also, the general structure must include quick-detachable load-gripping devices (traverses). The traverses should be at the front and rear. The main power elements (spars) should also be located. To make the frame, you need to slightly reduce the size of the width of the front. After that, it will become possible to make a part in the shape of a trapezoid. Do not forget to make a small hole in the frame - this will help to fix other devices in the future;
2. Next, the racks are used, which must be welded to the corners. The role of the uprights is to create a subframe. Additionally, they must be combined at the top of the structure. Then the unit of the wheeled vehicle (rear axle) must be attached to the frame;

1. Then comes the installation of the motor. The motor must have sufficient power. The engine of a regular motorcycle is suitable for installation;
2. The gearbox is mounted on the frame. It should be in the direction of the driver. In the future, this will help to easily operate the tractor;
3. Steering creation. For control, a steering wheel taken from a domestic car is suitable. In extreme cases, you can use the steering wheel of a motorcycle;
4. Installation of the towing hitch. It is designed for a trailer.
5. Brake creation. Then the electrical system is connected.

If you are engaged in a small farm, such equipment as a mini tractor is necessary for you. With it, you can complete a ton of daily agricultural tasks in a short amount of time.

Making a mini tractor with your own hands is not difficult. Of course, you need to have some knowledge. You can purchase them while watching the video:

As an alternative to a factory tractor for small farms, you can use "folk" designs.

The self-made mini-tractor from a walk-behind tractor described below is created from parts of the "Ant" cargo scooter - it has proven itself perfectly when working on small-sized rural areas. You can create such a mini-tractor with your own hands if you have a small workshop and a sufficient share of skill.

Homemade mini tractor design

This design was developed and tested in practice by students of the Kharkov Institute of Mechanization and Electrification of Agriculture.

You can make such a mini-tractor yourself from scrap: various units and parts from old serial machines produced by the domestic industry.

The unit can be equipped with a wide range of interchangeable trailed and mounted implements. Thanks to this, the walk-behind tractor can be considered a universal assistant in the home garden. It can be used for plowing and harrowing, cultivation and hilling, as well as for other operations related to soil cultivation and plant care.

This tractor can also be used in conjunction with a single-axle cart to transport various household goods, garbage from the site, soil, sand. For this, a small modification of the tractor is made, and the driver is placed on a sprung seat in front of the bogie.

The main parts of a homemade mini-tractor are the VP-150M engine, transmission, power take-off system, chassis, control system and hitch. All of them are assembled on a rectangular frame made of a channel. The most suitable for a walk-behind tractor of this device can be considered the VP-150M engine from the "Electron" scooter or its analogue, which has a capacity of 7.5 liters. With. (5.5 kW), single-cylinder, two-stroke and carburetor. It has a compact, integrated gearbox and clutch and is equipped with electronic ignition. It is also valuable that this motor is equipped with a centrifugal fan, because other engines have to be cooled by various “artisanal” forced methods.

Other motors can, of course, be used. But for comparison, it is enough to give basic data on the VP-150M engine. Here, the transmission of torque to the gearbox is carried out by a helical pair of gears with a gear ratio of 3.045.

Transmission - three-stage - with constant mesh gears. The gear ratios are as follows: for the first gear - 4.883, for the second - 2.888, for the third - 1.800. The engine and gearbox are made in one monoblock unit. There are no special requirements for the operation and maintenance of the engine complete with the clutch and gearbox; in this case, they are regulated only by the recommendations of the manufacturer.

The transmission of the walk-behind tractor is mechanical, gear-chain, consisting of a serial differential with a reverse (from a cargo scooter "Ant"), an intermediate shaft, two final drives and a wheel locking mechanism. The intermediate shaft in this mechanism simultaneously serves as a power take-off and for attachments. Therefore, the torque is transmitted from the engine to the intermediate shaft using a chain with a pitch of 12.75, and then to the differential using a chain with a pitch of 15.875 mm. And then, again along the chains of final drives with a pitch of 15.875 mm, to the drive wheels. The Z1 sprocket refers to the engine, Z4 is a kit with a differential, and Z2 and Z3 are from the Voskhod motorcycle.

The intermediate shaft is made of 40 steel, it is installed in two ball bearings No. 180205. For them, you can use standard flanged housings (for example, from decommissioned agricultural machinery); attachment to the side cheeks of the transmission cover.

The diameters of the shaft seats should be selected according to the dimensions of the sprocket hubs. The length depends on the width of the transmission cover plus a small margin (for installation on the right side of a double-ribbed drive pulley with a diameter of 100-120 mm).

Photo gallery

As you can see in the photo, this homemade mini-tractor is a two-wheeled vehicle driven by a person following it.

How to make a mini tractor for a household

The frame of the walk-behind tractor can be welded from the suitable profiles available at hand. Channel No. 6 can be used for the longitudinal frame side members, and No. 8 for the transverse side members. From the bottom, to the horizontal frame side members and to the brackets, it is necessary to attach the bearing housings of the axle shafts using bolts. Here it is required to put bearings No. 180207 (two for each axle shaft). Housings for them should be selected standard (preferably from decommissioned agricultural machinery).

The installation of these elements on the brackets must be carried out with particular care: it is necessary to observe the alignment of the wheels and the perpendicularity of the axle shafts relative to the longitudinal axis of the frame. This is important for the subsequent marking of holes for fastening housings with bearings and their further fitting onto a solid axle-mandrel, which must subsequently be sawn into two axle shafts.

With the correct installation of the housings, the mandrel in the axle shaft bearings will rotate freely.

After that, corners of 25 x 25 mm should be welded to the frame at its rear. Then the transmission cover is screwed to them, made of steel sheet 5-6 mm thick. This element is required as a base for installing the intermediate shaft, differential and control mechanism. The rear of the shroud should have a removable cover and the front should have a fuel tank bracket.

The front part of the frame is equipped with welded corners from the inside, which will serve as a bracket for the engine with a forced cooling fan.

The axle (or semiaxis) must be made of high quality steel. The dimensions of this element can be adjusted depending on the bearings available and the dimensions of the wheel hubs. Further, on the semi-axles from the inside, you need to fit two half-couplings.

The right half of the coupling must move freely on the square, and with the help of a lever installed on the control rod, it must be brought into engagement with the left half of the coupling. Thus, a rigid connection of the axle shafts is ensured, i.e. the wheels are locked.

The traverse should rotate 180 ° or the required intermediate angle so that additional convenience is possible when controlling the walk-behind tractor during operation.

Watch the Homemade Mini Tractor video to see how this agricultural machine is built:

Attachment to a mini-tractor for fast watering

For quick watering of a large land plot by folk craftsmen, another type of homemade tractor is offered. Rather, it is a device that attaches to a mini-tractor. In this case, a four-wheeled version of the mini-tractor is used.

In addition to irrigation, a mini-tractor for a household with this attachment and with the help of various trailed and mounted devices can be used for various tillage operations.

This design was developed on the basis of the UD-2 engine with a capacity of 8 liters. With. It is recommended to weld the tractor frame from pipes with a diameter of 40 mm. For its rigidity, it is necessary to weld 35 x 35 squares on the sides. The rear axle and cardan gear can be taken from a Skoda car. These parts need to be trimmed a little and adjusted according to the drawing. The gearbox can also be taken from this vehicle (it has three speeds for forward and one for reverse). The front axle can be calculated and made independently from a 40 mm pipe in the form of a rocker arm. The rods are taken from the stroller, and the steering column is taken from the Volga car. The brake system should be hydraulic, the brake cylinder - from the GAZ-51 car, the gas tank - from the grain loader. And the tractor seat can be taken from the beet harvester and slightly altered. The wheels for this tractor, front and rear, were taken from a tractor rake.

The result is a complete mechanism. Only the sprinkler unit needs to be positioned on the front of the frame of the assembled tractor. It should consist of a gear pump taken from the hydraulic system of the MTZ-5 tractor, which will operate from the tractor engine drive.

At the end of the assembly, you need to install a water tank with a capacity of at least 200 liters on the tractor frame. During operation, the pump will pump water and supply it through a hose, thus watering the earth within a radius of up to 10 m.

Homemade mini tractors are ideal for working on small plots of land. Almost any person who knows a little about technology can assemble a mini-tractor with his own hands.

In terms of technical characteristics, homemade products are significantly inferior to factory models. But using a powerful tractor on small areas is at least not rational. Even the costs of maintenance and fuels and lubricants will not be justified. But a small tractor, assembled by hand, turns out to be very appropriate. In this article, we will show you how to make a mini tractor at home.

Advantages and disadvantages of homemade mini tractors

A self-made mini-tractor turns out to be much cheaper than factory models, and in terms of its functionality, it can sometimes give odds to more powerful tractors. The homemade product can be used in vegetable gardens and orchards, for processing cultivated areas (not exceeding 10 hectares), transporting small-sized cargo and harvesting.

The cost of such a machine pays off in just one season., because the main components and mechanisms are usually removed from broken equipment or purchased at bargain prices. Some farmers are converting other equipment into a mini-tractor. In this case, the process of manufacturing equipment is greatly simplified.

Among the shortcomings, it can be noted that it is difficult to select suitable parts. In addition, if some units fail, problems may arise with replacement or repair. After all, whatever one may say, the tractor is assembled from old, so some parts cannot be found.

To prepare drawings, you need to have technical skills and knowledge. After all, a mini-tractor must work with attachments and trailed equipment, for this it is necessary to calculate the tractive effort of the engine.

Advice! A mini-tractor assembled with your own hands must be registered with the traffic police. Otherwise, when driving onto the road, a homemade product may go to a penalty parking lot, and you will be issued a monetary fine.

We prepare drawings

Some folk craftsmen are able to assemble any technique, having only a bunch of old iron and a general work plan that is kept in mind. There are only a few such people, and if you are not one of them, you must first prepare drawings of the main components of the future machine.

If you do not have the necessary knowledge, you can ask friends or acquaintances to make drawings. Finally, the information you need can be found on the internet.

Having drawings at hand, assembling a mini-tractor at home will resemble a children's designer. That is, you take part A and connect it to clutch B.

It is worth noting that some of the nodes and parts of which the homemade product will consist may need adjustment or additional processing. Agree, explain to a turner or a welder that what is required of them is much more convenient not on the fingers, but having a ready-made project and drawings at hand.

By the way, at this stage, you need to decide what kind of mini-tractor you want to make with your own hands. The 4x4 break is very popular among farmers. This is a small model on an articulated (articulated) frame, four-wheel drive. This homemade product is optimal for work on farms.

How to assemble a mini tractor with your own hands

Having prepared diagrams and drawings, it is necessary to find suitable parts. At a minimum, you need an engine, transmission, frame, and steering. Finding the right parts at home is very problematic, so you can walk around the flea market and look through sites selling spare parts. Here you can literally purchase the parts you need for a penny.

Frame

Fracture is usually done from a metal channel No. 5 or No. 9. The structure of this material has a sufficient margin of bending strength. Two semi-frames are welded from the channel, which are connected to each other by a hinge. For these purposes, you can use propeller shafts from trucks.

If the fracture does not suit you, you can make a mini-tractor on an all-metal frame. This design usually consists of four elements: right and left side members, front and rear cross members.

The side members can be made from channel # 10, the rear and front traverse from channel # 16 and # 12, respectively. A metal bar can be used as a transverse beam.

Engine

For work, a DIY mini-tractor can be equipped with any engine of suitable power. The best option is a power plant with a capacity of 40 horsepower..

Most often, M-67, MT-9, UD-2 and UD-4 engines are installed on self-made units. There are models equipped with engines from domestic passenger cars of the Zhiguli or Moskvich series.

If the homemade product is made according to the 4x4 formula, for the M-67 unit it will be necessary to increase the gear ratio of the transmission, otherwise the power plant will not have enough power to provide the necessary force for the wheelsets. Please note that an additional cooling system may be required for the powertrain.

Transmission

The gearbox and power take-off shaft can be removed from the GAZ-53 car. The clutch will fit from the old GAZ-52. In finished form, these nodes will not work; additional adjustment will be required.

To synchronize the clutch with the engine, you will need to weld a new clutch basket and adjust it to the required dimensions. At the engine flywheel, it will be necessary to shorten the rear plane and drill an additional hole in the center. These operations can be done on a lathe.

Steering

This unit should include hydraulic cylinders, this will provide the mini-tractor with better handling. It is impossible to make a hydraulics system with your own hands at home. Therefore, it is necessary to remove the ready-made hydraulic system from any agricultural equipment. Note that a pump is required to circulate the oil in the hydraulics.

Rear axle

You can take a suitable assembly from a car and a truck and install it on a homemade structure. It is first necessary to shorten the axle shafts on a lathe.

If there is no finished bridge, a composite structure from different machines is allowed. The front axle is not a driving axle, so any node that is suitable for size will do.

Wheels

The radius of the wheels depends on how the mini tractor will be used. For transporting goods, discs with a radius of 13 to 16 inches are better suited. To carry out agricultural work, you will need wheels of 18-24 radius.

A self-made mini-tractor should produce about 2,000 engine revolutions when plowing, at a speed of 3 km / h. To achieve these values, it is necessary to adjust the transmission scheme.

Ideally, each wheel of the driving rear axle should be equipped with a separate gearbox. In this case, the rotation is set by a four-section hydraulic valve.

With this steering scheme, there is no need for a propeller shaft and a rear axle differential. Hydraulics will be responsible for wheel steering. The necessary equipment (pump and hydraulic cylinder) can be borrowed from the MTZ-80 tractor.

As you can see, making a mini tractor with your own hands is not difficult at all. Despite the fact that this is a rather time-consuming process, the result will more than cover all the efforts expended. Moreover, assembling a homemade structure is a very exciting experience.