Agricultural mechanization has long been the norm. There are many mounted agricultural implements: a plow, okuchniki, seeders, harrows, mowers and much more. A trailer is used to transport all kinds of cargo.
One of the most popular and sought-after mounted implements for a mini-tractor is a rotary cutter, which is often called just a mill. There are quite a lot of different models of this device on sale, most manufacturers seek to universalize their products, so a suitable tool will not be difficult to find.
The scope of the soil milling machine is quite extensive, this is due to its main function - loosening the soil. Units are produced for a long time, initially they were thought out as a mechanism that facilitates the processing of row spacing. The mill was called - inter-row. It was used where no other agricultural machine would fit. However, it soon became clear that this area of application of the soil milling cutter is not limited. It has become especially effective in small areas where it is impossible to use a large tractor. So the mill became the main attribute of a mini-tractor.
In the spring, this unit replaces a shovel when digging a garden. The work of the cutter is similar to the work of a manual shovel, that is, the tool is immersed in the ground, raises and turns it over, while the width of the area being processed simultaneously can be from 80 cm to 1.5 meters. You can use this mounted tool for processing virgin soil, forming ridges, weeding, and hilling. The mini-tractor with a milling cutter will perfectly cope with compacted as a result of flooding or dry ground.
The disadvantage of the cutter, in contrast to the cultivation of the soil with a hand shovel, some gardeners consider spraying the soil. On light soil, the operation of the machine is really associated with this unpleasant factor, but it can be avoided if you do not miss the moment and process a slightly damp earth.
The soil milling machine is quite effective when fertilizing the soil - it allows you to evenly mix the ingredients. She copes well with weeds. A loose soil is easily saturated with oxygen, which prevents the spread of unwanted microflora. The passage of the cutter provides full tillage and, as a rule, does not require additional operations. Depth is adjustable from 5 to 20 cm. These values are quite enough.
Traditionally, in the territory of the former USSR, Belarus is engaged in the production of soil tillage machines, primarily for mini-tractors of its own production. However, due to universalization, products can also be used on tractors of other manufacturers. Milling cutters loosen the soil to a depth of 120 to 200 mm. The processing width, depending on the model, ranges from 450 to 1250 mm. Depending on the size of the unit, its weight also changes. The use of a rotary cutter may be limited by the capabilities of the mini tractor.
Tillage for a mini-tractor - a simple mechanism. Movable units are mounted on the support frame, and the casing protects against dust and dirt from entering the mechanisms. When the unit moves, the torque is transmitted from the wheels to the drive shaft, the rotating milling drum with knives. There is another version of the cutter device, when power is taken directly from the tractor engine, and the force is transmitted through an intermediate gearbox. The depth at which the knives cut into is adjusted by the support wheels. The frame is rigidly connected to the tractor attachment system.
The protective casing not only protects the working units of the cutter, but also the tractor driver from dust flying out from under the knives and all kinds of unexpected inclusions (sticks, fragments of bricks, stones, etc.).
What soil milling machines are
Milling cutters, despite the similarity of the principle of operation, may differ in a number of parameters. Significantly varies the number of knives and their shape. The more complex shape of the cutting parts, as a rule, increases the efficiency of the entire unit, especially in fallow areas. Cutters in the shape of knives can be divided into two types.
Most often, cutters with saber-shaped knives are found on sale. Such a device is most versatile. The cutter easily processes even stony ground. These knives, in turn, are divided into three groups depending on the form and, accordingly, the application.
- Simple (standard) - apply on light soil not contaminated with weeds.
- Sickle - are used when working with more dense soil.
- Chisel - like - have a large mass and are suitable for processing heavy or rocky soil.
Correctly (depending on the characteristics of the soil) selected knives will extend the life of the unit. Another variation in the shape of the knives is the so-called crow's feet. This form of knives allows you to process weedy soil, destroying unwanted vegetation. Such a mill can "raise" virgin soil. However, unlike the previous type, such a mill experiences heavy loads and often needs repair. By purchasing this, in fact, a very effective unit, you need to buy spare parts in advance, first of all the knives themselves, as well as bearings that take up most of the load.
Both types of milling cutters loosely soil, can mix the soil qualitatively and evenly when fertilizing.
Vertical milling machine looks quite exotic. The general design plan differs little from conventional horizontal machines, but the force is transmitted through the gearbox not to one common horizontal drum with knives, but to a series of separately rotating vertical nozzles. The device is effective in surface loosening of the soil, and it also destroys weeds well, but cannot provide deep tillage.
Care and maintenance rules
The operation of the rotisserie involves great effort on its knives. Their working surface, while experiencing soil resistance, can dull rather quickly or even break from contact with large stones and pebbles. When picking up knives in return for broken or broken ones, you need to pay attention to their manufacturer. The quality of steel is the most important factor determining the performance of the machine. It is better to protect yourself from unpleasant surprises and not experiment with unknown brands.
When installing the knives on the cutter, you should carefully read the instructions. Incorrect installation can cause the failure of the whole far from cheap unit. After finishing work, the knives, like other components of the machine, must be thoroughly cleaned of dust and dirt. Adhering earth can cause corrosion. When preserving the mechanism for the winter, when it will be inactive for several months, it is advisable to lubricate all nodes. Knives must also be greased or wiped with oil.
Subtleties of choice
When purchasing a cutter for a mini-tractor, you need to pay attention to a number of features.
- To study the coupling mechanism, as this unit can vary significantly between different models. The error will cost quite expensive, and attempts to adapt the wrong unit to your mini-tractor can cause a dangerous situation associated with the destruction of a makeshift coupling mechanism.
- It is necessary to present, at least in general terms, the properties of the soil to be processed with the help of the purchased unit. This will limit the choice of interchangeable knives. It is hardly worth buying equipment that will be unclaimed.
- Equally important are the dimensions of the attachment. This parameter is limited not only by the capabilities of the mini-tractor, but also by the features of the site to be processed and storage conditions.
Homemade Milling Cutters
Despite the relative availability of industrial soil milling machines, homemade units are far from rare in Russian open spaces. Decide on such technical creativity pushes not only savings. Sometimes the master tries to create not just cheap, but also the most convenient mechanism for him. To tackle such a difficult matter, certain technical skills are needed, and if they are not, it is better to refuse immediately, and not go through a series of dangerous failures. Tillage - an active agricultural mechanism and the quality of its nodes - is the key to safety, which should not be forgotten in any case.
If, nevertheless, the decision to start independent production is adamant, it is better to take care in advance of preparing as many nodes as possible (shaft, gearbox, gears, etc.) from mechanisms that are suitable in function and size. Real craftsmen also prefer to make knives of a homemade machine on their own. A good result can be obtained by taking the spring from the car as starting material.
See how to make a homemade cutter for a mini tractor in the next video.