Rotary mower for walk-behind tractor - design description

A rotary mower for a walk-behind tractor is a type of attachment, the function of which is to mow weeds and bushes in meadows and fields. This attachment successfully copes with the removal of grass in large areas, the soil of which is not treated with herbicides.

Often, a rotary mower is also called a disc mower - this is due to the principle of its operation and design features. Depending on the method of connection with the walk-behind tractor, such a mower can be semi-mounted, mounted or trailed. Also, attachments of this type are classified according to the location of the cutting elements in relation to the walk-behind tractor used. According to this factors, rotary mowers with front, rear and side cutting blades are distinguished.

During operation on the site, the rotary mower is set in motion by means of a transmission and wheels of a walk-behind tractor. The design of such attachments is extremely simple - one or more cutting discs, together with the support wheel, are mounted on the frame. As soon as the support wheel begins to move, discs begin to rotate with it, mowing the vegetation.

The fields of application of the rotary mower are quite extensive - it can be used on pastures, meadows and large vegetable gardens. At the same time, the more disks are included in the equipment design, the larger the cultivated area can be.

Video: How Rotary Mower Works

Homemade mini tractor rotary mower is handmade using old iron batteries and a barrel. The device consists of cutting elements, casing and frame. The rotary mower slides on the ground with the lower discs.

Pictured is a homemade mower for a walk-behind tractor

To make a frame, use corners measuring 40 cm. The unit is equipped with the blades of an old rotary mower. If the Polish model is used, it must be accelerated by 3 cm. Otherwise, the traction on the minitractor will not be enough.

2 discs with a diameter of 39 cm are cut from a metal sheet 4 mm thick. Knives are attached to them (they should rotate freely). When moving under the action of centrifugal force, the cutting elements will mow the grass.

Scoop disks (45 cm diameter) are used to make the bottom supports. Shafts can be made of a metal pipe with a diameter of 30 mm. The device is equipped with two bearings:

• The first is installed in the pipe;
• Second. In a welded sheave.

The disk and knives are placed on the shaft. The pulleys are welded to the pipe. The resulting design allows you to capture a section with a width of 110-115 cm. In this case, the rotation of the shaft is 1400. The device has a cover. To extend the life of the belt, it is recommended to install a bearing at the junction of the mower with a mini tractor. To simplify the design, experts advise welding the lower disc to the frame. specific speed. 10 km / h. In this case, the grass is cut to a height of 5 cm. The resulting rotary mower is used to harvest corn.

Source

The rotary mower for the MTZ tractor greatly facilitates agricultural work. As the name suggests, they are designed to cut weeds or crops.

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The design of rotary devices is quite simple: a support frame on which the rotors with knives are fixed. The cutting elements are attached to the rotors with hinges, which ensures their mobility.

The mower is driven by a gear or bevel gear or through a cardan shaft. Some models have an additional function of collecting and processing weeds.

In this article, we will look at the popular rotary mowers that the MTZ tractor can work with.

Rotary mower KRN-2.1

Segment mower for walk-behind tractor - applications

A segment mower for a walk-behind tractor is one of the simplest equipment options. Its design consists of a frame on which 2 bars are installed. Between them are placed cutting elements. In the process of making translational movements directly from the drive of the used walk-behind tractor, the cutting elements of the mower begin to move like scissors, thus cutting the grass. In this case, one of the segments constantly moves to the right and left, and the second is in a stationary state. When grass gets caught between the mower's fingers, its stalks are quickly and evenly cut. This kind of design allows the segment mower to work successfully on areas with difficult terrain.

The entire fixture is held on support wheels, and can be attached to the front or rear of the walk-behind tractor. Along the edges of the structure there are skids designed to adjust the height of mowing vegetation.

The segment mower does not differ in modest dimensions, which does not allow it to be effectively used in areas with a large territory. However, this type of attachment successfully copes with weeds that have tall and thick stems, which makes it suitable for mowing dry grass. Due to this, the segmented mower for a walk-behind tractor is in rather high demand among farmers who own cattle.

The main advantages of a segmented mower include ease of operation, no need for frequent repairs, and low cost. Among the minuses of the equipment, low productivity and low efficiency in areas with low grass stand out.

Model K-78M

This rotary mower has the correct type installed and is driven by the hydraulic system of the MTZ tractor. The equipment is used to remove vegetation on slopes, curbs and dividing lanes of the roadway.

It can be equipped with additional equipment for cutting down small trees and shrubs. The device works well in large agricultural areas. He has a neat bevel, good performance and laying grass in a duck.

The mower weighs 850 kg and has a working width of 1.6 meters. The yield is about 0.3 hectares per hour, the cutting height is from 4 to 8 centimeters.

The purchase of such a mower will cost about 123 thousand rubles.

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Frontal mower for walk-behind tractor - design features

Such a mounted mower for a walk-behind tractor is mainly used to work together with heavy equipment equipped with a water cooling system. The main tasks that the front mower on a walk-behind tractor is designed to cope with are mowing a large number of tall and thick weeds, removing shrubs, harvesting large volumes of hay.

Some models of frontal equipment are pre-equipped with a rake, thanks to which the operation of a walk-behind tractor with a mower of this type allows you to collect mowed grass into felts, thus simplifying the process of working on the site. In the side parts of the frontal mowers for walk-behind tractors there are separate skids, the movement of which allows you to adjust the height of grass mowing. The package of most models of attachments of this type includes special pulleys that replace the standard elements of walk-behind tractors.

Characteristics of the rotary mower

Specialists classify these units into the following types:

1. Devices that mow and lay grass on the cob;
2. Machines that mow and lay grass in rolls;
3. Rotary mowers on a walk-behind tractor, mow and mow grass.

Some models immerse, compact the grass when mowing and laying in a swarm. Considering the installation method, experts distinguish such devices as trailed, semi-mounted and mowers.

This device consists of rear, front and side cutting system. Devices with 1,2,3 or 5 bars are mounted on the tractor. The rotor belt is started by the action of the tractor shaft or wheels.

On the picture. Rotary mower on a mini tractor

The considered units are installed on the tractor and walk-behind tractor in a horizontal position. The knife and connecting rod must move in the same plane. The Polish tractor mower is used to work on a small plot of land. The front model divides the land into units.

Before buying a rotary mower on a walking tractor, the principle of its operation is studied. If you want to mow high-yielding and dead grasses, weeds, a rotary device is used. This mower is attached to a walk-behind tractor or a tractor by itself. The equipment consists of a bar to which knives are attached.

The device with a grinding machine consists of a rotor, a frame, a drive mechanism, and a pipeline. The principle of operation of a rotary mower on a pedestrian tractor: when the machine is moving, the vegetation is tilted with a shield and then mowed with a knife. The grass rises, lays down, falls into the container.

If you need to work the land quickly, then a Polish mower is used for a tractor or walk-behind tractor with several cutting elements. Experts recommend buying the following devices, considering the following criteria:

• Grass cutting height;
• Implementation;
• Knife speed.

Plus a rotary mower on a mini-tractor. The presence of a damping device that protects the knife from various obstacles. Additional device benefits include:

• Easy to operate;
• Strict regime;
• Time saving

Lineup of units

A rotary mower for a walk-behind tractor can be presented in the form of the following models:

• "Dawn". Installed with a gearbox and additional brackets. The device is used for mowing grass, small shrubs and cereals. The width of the structure is 70-80 cm. If necessary, the device is used when processing stony soil;
• "Dawn 1". It is used for tillage in hard-to-reach places;
• "Fast KNS-0.8". Allows you to mow grass 2 m high;
• "KM-0.5". Compact model with 50 cm wide bevel

Models of rotary mowers for a mini tractor:

• Z083 MINI. Designed for mowing grass over a large area. This model is not used in mountainous terrain;
• 135 135. Mow and mow the grass. The model is equipped with 8 knives;
• "KP-2.1M". The installed rotary mower for mini tractors allows you to cultivate the land with solid objects;
• Z-069 Wirax. Polish model with which you can process a large plot. The grass is cut and placed in rolls;
• KRN-2,1-b. Mowing grass in difficult terrain;
• SB-1200. Semi-assembled model of Czech production. Using this mobile design, you can repeat the relief.

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Appliances

If necessary, you can make a rotary mower on a walking tractor and mini-tractor with your own hands. For the manufacture of equipment for a walk-behind tractor, a welding machine, fittings, tape measure, metal corners are required.

The frame of a homemade rotary mower for a walk-behind tractor is made of metal corners (4x4 cm). Then install the bearings. The next step is the manufacture of the working part of the device.

The resulting structure will grind fine grass and mow tall weeds. The Neva self-propelled rotary mower for a walk-behind tractor consists of two discs removed from seeders, a gearbox and a chain from a chainsaw.

You will need 4 knives for each blade. Cutting elements are made of hardened metal. To install them, drill holes with a diameter of 6 mm. The cutting elements are attached to the walk-behind tractor with a tire. This keeps the gap between these elements (1-2 mm).

This design ensures quick mowing of the grass.

Pictured is a simple homemade mower for a tractor

During the operation of a walk-behind tractor with a rotary mower, it is possible to rotate the knives 360 degrees.

The axis of the device is made of carbon steel with a diameter of more than 8 mm. So that the knives can move freely, the axis is extended by a disk. The discs are mounted on the frame, connecting them to the drive. The discs should rotate opposite each other (to ensure that the grass is stacked in rows).

extra work

To improve the walk-behind tractor, you can make your own adapter. This small trailer doubles as a cab with the option of mounting a mounted rotary mower. The rotation of the handles is controlled by a walk-behind tractor. The length of the steering wheel is taken into account before making the adapter. The axle of the trailer is made from sidecar suspension elements from a motorcycle. Experts recommend making a bridge from a steel corner measuring 40x40x2. Square tubes are welded to reinforce the adapter.

Installing a mower on a walk-behind tractor - in detail for beginners

The preparation of the walk-behind tractor available on the farm before mowing the grass consists in installing the selected mower on it.

Installation of attachments is carried out in the following order:

1. First you need to fix the tensioner from the mower kit;
2. Next, you will need to put the accessory pulley on the upper clutch in such a way that the front of the hub “looks” at the flange of the tensioner;
3. After that, it is necessary to fasten all installed parts with a screw;
4. Then you need to install the mower and put on the belt, then fix the mower with the pins;
5. At the next stage, you need to put on an apron that prevents grass from getting on the operator, and install the protective shield back on the walk-behind tractor. The video will tell you more about installing a mower on a walk-behind tractor.

The field of installation of the mower will need to adjust the belt tension. This is done by turning the handle in the direction of the walk-behind tractor. After that, you can start mowing the grass on the site.

How to make a mower for a walk-behind tractor with your own hands - manufacturing options

Almost each of the listed types of mowers for the walk-behind tractor available on the farm is quite simple to make on your own. The only thing is that problems may arise when assembling the front equipment, since it is quite bulky and requires the purchase of many hinged mechanisms.

The most popular among enthusiastic farmers are rotary and segment attachments for walk-behind tractors. They have a simple design, and for their manufacture it is not necessary to have specialized equipment available.

Rotary mower - how to do it yourself?

This type of common attachment will be most effective in any area. If low grass has sprouted on it, then the device will simply chop it, and if the weeds are high enough, then the mower will mow them.

For the manufacture of a rotary mower, it is imperative to study the drawings. They must indicate the dimensions of each part of the structure and the methods of their fastening.

The further assembly procedure is as follows:

1. First you need to find 2 disks - they can be taken from the grain seeder or any other equipment available on the farm. Also, for work, you will need a gearbox and a chain from a chainsaw;
2. To make the axis on which the knives will be mounted, you should use a carbon steel pipe with a diameter of about 1 cm along the entire length. In order for the knives to rotate freely, the axis is tightened with a disk until it stops;
3. The disks made earlier will need to be fixed on a welded frame and connected to the drive provided in the design of the power take-off shaft of the walk-behind tractor. Make sure the discs rotate towards each other as they rotate, so they will fold the cut grass into neat rows.

A homemade rotary mower made in this way will quickly get rid of weeds and bushes of any height and thickness. The assembled equipment does not need frequent repairs and special maintenance.

Do-it-yourself rotary mower

Unfortunately, most owners of motoblocks and mini tractors do not always use them in full, and in order to mow a lawn or field, they hire other equipment. Although, it is quite possible to do this with a rotary mower. The cost of such a tool is prohibitively high, so it is much more profitable to build it yourself. We will consider how to make a rotary mower from improvised means further.

Table of contents:

1. The principle of operation of the rotary mower
2. Features of rotary mowers
3. Do-it-yourself rotary mower
4. Homemade rotary mower from improvised materials
5. The cost of purchased rotary mowers

The principle of operation of the rotary mower

On the modern market for agricultural tools, there are a large number of different mowers. Rotary devices are the most popular. Due to their design, they have high performance and are easy to use both on a large tractor and on a walk-behind tractor.

The principle of operation of the rotary mower is the production of rotational movements in the rotor, which has a round shape.

The rotary mower has the form of a rectangular bar, to which rotors with knives are attached. They are responsible for the correct cutting of plants.

Rotary mowers have gained great popularity due to their efficiency. The fact is that these devices use direct energy that comes from the tractor. Therefore, they do not require any specific type of energy to operate. At the same time, productivity increases several times. These mowers are used in the process of mowing grass, weeds, dead plants, they are called not only rotary, but also rotary.

If we compare the rotary mower with alternative options, then the first one has an efficiency of more than 70%, while the others have up to 40%.

The rotary mower is attached to a transport device, which is a tractor, mini tractor or walk-behind tractor.

There are three types of such mowers, these are devices:

• trailer type;
• semi-mounted type;
• hinged type.

Rotary mowers of the first type are attached to vehicles using a three-point scheme, so it is possible to adjust the angle of inclination of the device.

Mounted mowers are ideal for working on small plots of land. The use of semi-mounted devices is recommended for large areas, and trailed rotary mowers are used for working on uneven ground.

The rotary mower has a fairly wide scope. She perfectly mows the grass for its further laying in rollers. In addition, rotary mowers are distinguished, which not only mow the grass, but also chop and collect it. The principle of operation of such a device is to cut plants, feed them to special knives, which carry out grinding, transportation in a container.

Features of rotary mowers

In general, there are several types of mowers for mini tractors or walk-behind tractors that you can build yourself. Since it is in this way that it will be possible to achieve the greatest savings in money, and at the same time get a quality tool.

Mowers that are made at home are:

• rotary;
• trailed;
• segment.

The basis for the rotary mower is a welded metal structure in the form of a frame. For its manufacture, metal corners with a standard size of 40x40 mm are required. Body sections are installed on the structure to fix the wheels. After that, you should independently choose the type of working part, which depends on the place of work of this tool.

Rotary mower photo:

The scope of use of a homemade rotary mower extends to mowing grass or lawn areas. But, keep in mind that with the help of such a mower it is recommended to mow only high grass, as it will chop low grass. To make such a mower yourself, you must have:

• chainsaw chains;
• two discs taken from a seed drill for grain.

For the manufacture of knives, use only hardened steel. Each disc should have four knives.

On each of the disks you need to drill holes for the knives, their diameter should not exceed six millimeters. Fixation of knives occurs with the help of a tavern. In this case, it is necessary to leave a small gap between the knife and the mount, its thickness should be two millimeters greater than the thickness of the blade. In addition, you should take care of installing a protective case.

Do-it-yourself rotary mower

The design of a home-made rotary mower for a mini tractor includes knives that provide grass mowing. The knives are fixed on a special disk device. A power shaft is used to provide movement. The sliding of the mower on the surface of the earth is carried out using the lower discs.

For the manufacture of a welded frame, use the corners, it is possible to use old scrap metal. To save time on making knives, use an old tractor rotor. But, in this case, in order to improve traction and make the mower more productive, the tractor rotor should be shortened by several centimeters from 2 to 4, depending on the power of the mini tractor. This mower model has a beam height of not more than 350 mm.

For self-construction of the rotor, you should take a metal sheet and cut out two circles in the form of disks from it, each with a diameter of 390 mm. To save on the purchase of a metal sheet, it is possible to use the bottom from an old barrel. In the center, legs are welded to the discs to ensure their rotation. Due to the influence of centrifugal force, the process of mowing the grass will be carried out.

Carefully monitor the strength of the fastening, in the process of welding the legs, as the connections must be as reliable as possible.

A disk taken from a peeling device is suitable as a lower support; its diameter should not exceed forty-five centimeters. An old metal pipe with a cross section of no more than three centimeters is suitable as an axial shaft. To make the structure, bearings No. 180 106 are also required. A hole should be provided on the pipe section for installing the lower bearing, a second bearing is installed on the surface of the pulleys. This requires a welded pulley.

On a pre-prepared shaft, put on a disk on which there are already knives. Then, using a welding machine, weld the pulley to the pipe. The rotation of the structure will be carried out by two bearings.

Such a model of a rotary mower is characterized by the presence of a grip of 1.10-1.15 cm, while the number of revolutions of the shaft reaches 1500 pcs. The mower should be installed and then welded onto a welded frame made of metal corners. To ensure the safety of work, care must be taken to install the casing. At the junction of the tractor and the mower, directly at the junction of the belt with the figure eight, it is recommended to install an additional bearing, which will make this connection more durable and ensure softness in the operation of the mower, in addition, the friction of the belt will be reduced.

To simplify this model of a rotary mower, the lower disk should be welded directly to the metal structure from the corner.

Tip: In the absence of skills in working with a welding machine, it is better to entrust this procedure to an experienced welder in order to avoid damage to the device and make it more durable in operation.

This model of rotary mower allows you to mow at a speed of 8-12 km per hour. With a quick mowing process, the grass will turn out to be chopped, with a slower one - whole. Such a mower is capable of cutting vegetation by 6-8 cm. It is used for mowing grass or cleaning household plots from weeds.

Homemade rotary mower from improvised materials

Materials for manufacturing:

• four wheels of the same size, with a diameter of up to 45 cm;
• two axles for mounting wheels;
• a metal sheet;
• bottom from an old metal barrel;
• four knives;
• nuts and screws for fixing knives;
• welding machine;
• chainsaw;
• a handle for control or a pipe for its manufacture.

Instead of wheels, you can use an old baby stroller with metal wheels. A chainsaw is fixed on it, which will rotate the so-called rotor.

A temporary gear from the pulleys will help to replace the tire. A metal sheet is installed on the bottom of the stroller, which must be cut with a grinder, in accordance with the size of the stroller. In addition, it is necessary to cut the bottom in the form of a disk from a metal barrel. From another barrel or improvised means, cut a casing that will have a diameter slightly larger than the disk. It is possible to manufacture an aluminum visor, which will help to lay the cut grass. A handle is used to control the mower, if there is one from a stroller, use it, otherwise, build a handle yourself. Attach knives to the disk, watch the strength of the joints. Further, all parts are assembled by welding. First, a metal sheet is attached to the stroller, then a casing is fixed on its surface and a disk is inserted into it. During the start of the chainsaw, this mechanic rotates and mows the grass.

The cost of purchased rotary mowers

The cost of a rotary mower, first of all, depends on the width of its capture. In addition, the price is affected by:

• number of rotors;
• the quality of the material used in the process of its manufacture;
• company manufacturer;
• appointment;
• availability of additional functions;
• mower type;
• rotational speed;
• the height of the grass she mows;
• weight, etc.

The average cost of a rotary mower for a walk-behind tractor is from $ 100. At the same time, it is equipped with two rotors, has a capacity of 3500 rpm. The working width of this mower is 80 cm.

The cost of a rotary mower for a minitractor is from $300. However, it has a slightly large grip and dimensions. Also, these mowers are characterized by higher productivity and are suitable for processing medium-sized plots.

A rotary mower for a tractor is much more expensive, its average price is $ 1,500. At the same time, the capture width is doubled and even tripled. This equipment is designed to work on large areas of land.

Do-it-yourself rotary mower video:

Segment mower - manufacturing sequence

This type of attachment for the walk-behind tractor used is also as simple as possible to make on your own.

To assemble the structure you will need:

• electric drill;
• Bulgarian;
• welding machine;
• a set of bolts and nuts;
• several metal bars.

Before manufacturing the device, it is necessary to study the detailed diagrams, which should indicate the dimensions of the spare parts and the place of their installation in the structure.

The further assembly order is as follows:

1. In each of the bars used, it is necessary to drill 12 identical holes - M8 bolts must be placed in them;
2. Next, on the bolts, you will need to attach a guide rail, 89 cm long with knives and teeth. All knives must be placed on both sides of the bars;
3. Next, from the two ends of the bars, you need to make clamps and skids;
4. A wheel is installed at the bottom of the frame - it can be taken from an old baby carriage;
5. After that, the structure is connected to the power take-off shaft of the walk-behind tractor.

After assembly, the finished structure must be checked, since situations often arise in which a home-made segmented mower for a walk-behind tractor is brought to the side.
The reason for this is the wrong center of gravity. To solve the problem, you need to shift the center of gravity of the mower in the opposite direction, using any available weighting agent. Rotary and segment mowers made in this way are suitable for Neva MB-1 and MB-2, MTZ, Zarya, Salyut, Oka, Agat, Zubr, Agro, Patriot, Ural, Centaur and other units equipped with a power take-off shaft.