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Mower rotary to the motor block and its device. Self-made rotary mower for motoblock

Care of the site involves the implementation of a number of activities. Their implementation is mandatory. Including mowing grass. Traditional ways of harvesting greenery are a thing of the past. They were replaced by a technique with additional units and devices. To date, for the processing of a piece of land using a motor-block with various devices coming to it in the kit. It is not always possible to buy ready-mounted implementations. Then the self-made rotary mower for motoblock comes to the rescue .

Features of the rotary mower

Rotary hinged mower for motoblock is used for mowing grass. If the grass is low, then the mower will simply grind it. Higher grass aggregate will cut. It can be dried on hay. Even at a grass height of 6-8 cm you can use a mower. And the degree of grinding still depends on the speed of movement. At high speed the grass is more crushed. And if you need to mow the vegetation to hay, then you need to go slower. On average, an hour of work can remove the strip length of 8-12 km. This means that the device is able to work when the motoblock moves at a speed of 8-12 km / h.

The device of a rotary mower for a motor block is quite simple. Therefore, it is produced independently. Grass is cut with knives, which are installed on working disks. Disks are collected in pairs. The lower disc rotates, and knives rotate with it. The movement is transmitted from the motor block by means of a power take-off shaft (PTO).

Homemade mowers most often allow you to grasp a section with a width of 110-115 cm, rotating working bodies with a speed of about 1500 rpm. Elements of the device that rotate must be covered with a casing. This is necessary for compliance with safety regulations.

Necessary materials

The starting materials are:

  • Disks from the seeder for planting cereals in an amount of 2 pieces.
  • Chain from the chainsaw gearbox.
  • Metal knives (8 pcs.).
  • Shink.
  • Opener.

In addition, bolts, nuts and other small parts, which are usually found in the garage of any owner, may be required.

Instruments

For the manufacture of a rotary mower to a motor block, you will need: a drill with drills, a screwdriver, a Bulgarian with cutting discs, and pliers. If the elements are connected by welding, then a welding machine is needed. You can fasten all parts with bolted connections. But this will take more time and effort. But if there is no welding or a familiar welder, then you can do the work in a similar way.

Prepare all the necessary materials and tools in advance. In this case, you will not need to be distracted to find the right parts. Work will be faster if everything you need is at hand.

Framing

The process of manufacturing a rotary mower to a motor block begins with the manufacture of a frame. It will be attached to all the working elements. A frame is made of a metal corner or other metal parts. The frame should be attached to the motor block and hold the working elements.

Preparation of discs with knives

The second stage of making a rotary mower for a motor block is the preparation of discs with knives.

From the seeder you need to take 2 discs. Each of them is attached to 4 knives. Knives are made of hardened metal. In order to save time and effort, you can use the rotor from the tractor. Only in this case it is necessary to remember that the length of the rotor should be reduced by about 4 cm. This will improve the traction.

To fix the blades on the disk, you need to prepare holes. Each disc is drilled with a drill with a diameter of 6 mm. The knives are fixed with a tire. For proper operation of the device, a gap is left between the splint and the knife, the height of which is a couple of millimeters (enough 1-2 mm) greater than the thickness of the knife itself. In addition, the gap allows you to perform immediately 2 nuances. The knives will rotate 360 degrees. Thanks to this, when you hit something hard, the knife will turn, but it will not break. When the disk rotates, centrifugal force will be created. Under its influence, the knives will straighten and cut off the grass.

The knives are fixed to the axis. It is made using carbon steel. And it is not recommended to make the axis too thin. The minimum diameter of the axle should be 0.8 cm. To avoid unnecessary free rotation of the blades, the axle is tightened to the stop.

Connecting parts

When all the individual parts of the rotary mower to the motor block are assembled, they can be connected together. The discs are attached to the finished frame. After this, the connection between the power take-off shaft of the motor block and the operating elements is made. In this case, it is necessary to follow the direction of the discs. They must rotate in different directions, that is, towards each other. This is done with the aim that the mown grass is folded in a row, and not scattered throughout the site.

When making a mower it is very important that the fastening of all the elements is reliable. When mowing, the discs rotate at high speeds. In the event of a breakdown, the parts will fly apart. They can injure others.

Connecting the mower to the motor block

Mower rotary to the motor block will work effectively only if it is properly connected to the equipment. Therefore, you must follow a few simple rules.

To perform the work the motoblock is put into the "reverse" mode. A connecting unit is installed in the hitch socket. Only then the PTO shaft is connected. The connection is locked by the kingpin with the spring. If the spring is not present, the trailing mechanism will fail.

During operation, the rotating elements (blades in particular) must be covered with a protective casing. Work should be safe. When you mow down, you do not need to hurry. This is especially true at corners. Such areas need to pass smoothly. Start mowing at low speed.

We use the wheels to fix the soil on the wheels of the motor block. When you mow grass in them there is no need. Therefore, before work they need to be removed.

User Reviews

Reviews of the rotary mower for the motoblock say that all efforts to manufacture the device are not in vain. She mows well, copes with most kinds of herbs. Of course, small shrubs may not prevail. The main thing is that the knives are well sharpened.

If we talk about devices with two rotors, which is considered in this article, then users are quite happy. But if you make a mower with only one rotor, you get a too narrow grip strip.

As for the mowing of the lawn, its minuses, of course, are there. Adjust the height of mowing is not, as in lawnmowers. Yes, and grass is scattered around the site, and not going to the bag. But these moments are not always important.

The mown grass is collected in the roll. Not quite "beautiful", really. But if we are talking about lawn grass, then it still needs to be collected. And this is better than doing it around the site. And if we are talking about herbs for hay, then the resulting roll should be scattered. Otherwise, the grass will not dry out. So it turns out that this characteristic is not so important. Most likely, this will depend on the specific tasks that are achieved by using the mower. Therefore, we can say with certainty that the rotary mower, made by hand, to the motor block is a good alternative to the factory devices. If it is performed correctly and reliably, then it will perform its functions perfectly.

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