CS256673B1 - Mower deck for mowing - Google Patents

Abstract

A mowing device for mowing grass and similar vegetation, consisting of a rotating disc equipped with mowing blades and fingers, where the rotating mowing blades pass through the free space of the fingers. The ejection pins are attached to the rotating disc. The fingers serve to protect the blades and support the mowed vegetation against the moving mowing blades.

Description

BACKGROUND OF THE INVENTION The present invention relates to a mowing device for mowing grass and the like, in which the blades and the fingers are not in contact with one another.

Various rotary propeller, spindle and string mowers are known, and there are cutting solutions using shear. The mowing knives mounted on the carrier in the form of a closed loop are guided by stationary, horizontally positioned fingers that penetrate the crop and provide support for the chopped crop. The metal surfaces of the mowing blades and stationary tines rub against each other, creating large passive resistances and dulling the mowing blades against the edges of the tines.

As a result, it is necessary to use high-quality steels for the production of shear parts.

Another solution does not use any guide fingers to support the cut and the mowing is carried out in a fleeting manner. In this embodiment the condition is high peripheral speed. The blades are completely unprotected and wear out quickly, and the energy consumption is higher.

The above-mentioned disadvantages are overcome by an embodiment according to the invention, characterized in that the mowing device is formed by fingers and a rotary disc provided with mowing blades, the rotating mowing blades passing through the free space of the fingers. Spreading pins are attached to the rotary disc.

The mowing device according to the invention has well-protected movable mowing blades and the finger system ensures perfect support of the mowed crop against the mowing blades. There are no frictional surfaces of the movable and stationary parts. The device according to the invention operates reliably at substantially lower peripheral speeds, has low energy consumption and low noise. The design is simple, low maintenance and reliable in operation. The entire device can be easily mounted on a variety of self-propelled machines.

BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated schematically in the drawing, in which Fig. 1 is a vertical section, Fig. 2 is a plan view, and Fig. 3 is a detailed vertical section.

The device consists of a beam 1 on which the axes of the rotary plates 2, 3 and the fingers 6 are fixed. The mowing blades 5 and the ejector pins 6 are fastened to a chain, a V-belt or a rope 6.

The beam 1 is provided with suspension eyes 7, by means of which the mowing device can be attached to a traveling device, preferably to a hand or morot wheelset, a small tractor or a tractor. The height guidance of the mowing mechanism above the ground ensures the ending of the beam 2.

The mowing blades pass through the free space of the fingers which penetrate the cutting space.

The fingers 8 provide support for the crop to be cut off by the mowing blades 5. The ejector pins 6 eject the cut crop in the direction of rotation of the mowing blades 5 and prevent the mowing mechanism from being burnt by the stands.

Claims (1)

SUBJECT OF THE INVENTION A mowing device comprising a rotary disc provided with mowing knives and fingers, characterized in that the rotary discs (5) extend through the free space of the fingers (8) and the ejector pins (6) are attached to the rotary disc (3).