2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-18 12:09
A rotary mower for a walk-behind tractor is a removable mechanized element designed for mowing small and medium vegetation. It has various configurations of types of internal structure and mechanisms of fastening to the leading unit. The scope of its application depends on the technical characteristics of the equipment.
Purpose
This device and its modifications applied in several areas:
- hay making;
- mowing of grain crops;
- clearing the land from wild plants;
- improvement of lawns, personal plots.
In order to get good hay, the grass must be cut close to the root. This effect can be achieved with specialized attachments for a rotary mower. Others, while mowing, grind the plants. "Chopped" vegetation is not suitable for feeding livestock, but it quickly decays, turning into fertilizer. This method is used when you just need to clear the space of weeds.
When harvesting, a coupled scythe nozzle is used . She carefully cuts the ears and arranges them in a special way. In most cases, cereals are sown in industrial volumes, therefore, walk-behind tractors with removable equipment are rarely used.
Rotary mowers help keep the lawn level in good condition. The special structure of the cutting mechanisms makes it possible to minimize the cutting height.
The efficiency of this device is determined by the features of the terrain . An uneven surface of the ground can make it difficult for the walk-behind tractor with a nozzle and interfere with full mowing.
Varieties
Rotary mowers are divided into several types, determined by the name of the end result.
Depending on this, they can:
- just cut off the vegetation;
- chop it into small fractions;
- mow and lay in the desired shape / sequence.
Depending on the aggregative properties, mowers are classified into two types
- Suspended . The leader can change the cutting height by raising or lowering the body of the walk-behind tractor.
- Traction . The scythe stretches behind the driving unit, cutting the grass at a certain height.
Each type of mower is designed for a specific type of work. They can differ in appearance, design and functionality. Inconsistency of the modification of the mechanism with the type of targeted work adversely affects their performance. Using equipment that meets the targets will give the best efficiency.
Popular models
Domestic manufacturers produce these units in various configurations. A common braid is one that is produced under the brand name Zarya and Zarya 1 are a product of the Kaluga OJSC Kadi.
This model is multipurpose. It is distinguished by high performance indicators, ease of management, ease of installation and maintenance. The mechanism for attaching the mower frame to the rotary unit of the walk-behind tractor is simple and versatile, suitable for almost all domestic cultivators.
Another model widely used by Russian farmers is the KR-80 . It is suitable for operation in combination with tselina, Neva, Kaskad, Oka walk-behind tractors. It can mow grass, large-stemmed shrubs, cereals.
The KRN-1 rotary suspended mower has similar characteristics . Produced in Russia and Belarus. Fits on most drive units. Has modifications designed for industrial processing of fields.
Before purchasing an installed add-on to the walk-behind tractor, you need to find out the characteristics of their compatibility. The Daewoo DAT80110 petrol cultivator is sometimes sold with additional attachments from the same company . They fit easily with its driving gear. Mowers from other manufacturers may be structurally different, which will interfere or negate attempts to connect the walk-behind tractor to the suspended unit. When buying this or that agricultural equipment, you should pay attention to this issue.
In the event that the mounted mower is not intended for use with a particular motor vehicle, an adapter can be purchased. If there is none, the connection mechanism may need to be reworked.
Design features
Devices manufactured by different companies may differ in external and some technical data. The principle of operation of such units is identical and dictates an integral list of nodal blocks included in the design.
The standard rotor scythe is made of:
- frames;
- stretcher;
- balancing mechanism;
- cutting apparatus;
- field divider;
- traction fuse;
- racks;
- protection of the cutter bar.
Frame - an element designed to attach the attachment to the walk-behind tractor . Has two axes facing to the sides. One of them serves to secure the frame to the lower links of the leading apparatus. The second one is fitted with a traction overload fuse, held by bolts and two nuts. An element with a bracket will be attached to the frame, which allows the subframe to be installed.
The subframe is the welded part that connects the frame and the cutting element . It consists of a rectangular body. On one side, a tube is welded with bushings embedded in it. In the middle there are "ears" for attaching the transport link and the device for adjusting the height. A bracket protrudes from the side, on which the traction fuse is attached. The drive itself and the belt drive protection are fixed on the subframe.
The balancing mechanism is designed to ensure that the cutterbar follows the terrain. Thus, the best possible mowing of vegetation is achieved. This mechanism also puts the mower in transport mode. Its adjustment is carried out with special tension bolts.
The cutting device is mowing . Its body is an all-welded crankcase. The cutting elements are supported on the ground by means of a special pallet installed underneath. The cutting device can have as many rotors on its body. In a motoblock modification, there are usually two of them. The rotors are equipped with two knives. The transfer of mechanical force from the motor to the knives occurs by means of a belt traction, gear units, a number of shafts and gears.
The field divider helps separate cut and uncut grass . It consists of a shield, springs and bolts. The spring mechanism allows the divider to move backwards when overflowing with cut vegetation.
During the mowing process, the cutter bar may bump into an obstacle. In order to avoid damage in this situation, the rotary mower is equipped with a traction safety device. With the help of this knot, the streamer can deviate from the working position up to the moment set by the user.
The stand helps to hold the mounted unit in a comfortable position at the time of its attachment to the walk-behind tractor.
The machine blades rotate at high speed . For the safety of the person using the equipment, they are placed in a protective casing. It can be made of lightweight metal or canvas fabric.
Various modifications of rotary mowers may differ in the presence of certain parts. Some of them can be purchased, while others can be made by yourself.
Maintenance and storage
The duration of the uninterrupted operation of the motoblock scythe mechanism directly depends on regular maintenance. As part of maintenance work, the device is cleaned of grass residues, mud deposits and dust . The degree of tightening of the threaded connections is checked - the loosened ones are tightened. The tension of the belt drives is measured. The cutter knives must be sharply sharpened. To do this, they must be periodically removed and sharpened. It is forbidden to do this in the hinged position. The balancing mechanism is adjusted after each operation. Its spring part is checked and adjusted.
Components subject to high friction must be lubricated regularly . Especially the bevel gearbox, cutterbar section and bearings need it. Lubrication is only carried out through the appropriate oil holes.
It is not recommended to pour oil or apply thick lubricant in rubbing areas that are not equipped with oil fill plugs. This will cause dust and dirt to adhere to the lubricated areas, increase wear and shorten the life of the parts.
The order and list of works carried out to prepare for long-term storage is determined by typical characteristics . The main nuances of such preparation include cleaning from dust and dirt, removing moisture from metal surfaces, coating parts with special anti-corrosion solutions. Choosing the right storage location is an important factor. It must be dry, protected from mold, drafts and other aggressive influences.
For more information on how to prepare the rotary mower for off-season storage, see the manufacturer's operating instructions.
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