UA5429U - haulm remover of beet harvester - Google Patents

Abstract

A haulm remover of beet harvester consists of horizontal shaft on which axles blades S-shaped in elevation are fixed. The blade is U-shaped in plan and has stiffening ribs that have variable width with displacement of the gravity centre toward the cutting edge of the blade.

Description

The utility model relates to agricultural machinery, namely sugar beet harvesters.

The well-known cutting element of the rotary device (I.E. Reznyk. Teoriya rezaniya lezvyem i osnov! rascheta rezhuschich aparatov, Moscow, "Mashinostroenie", 1975, p. 229), is made in the form of a plate bent along the radius and sharpened at the free end.

The disadvantage of the known cutting element is the relatively large metal consumption of the structure, which affects the cost of the structure, as well as the low stability of the bearing assemblies of the rotor shaft.

The well-known high-speed cutting device of the beet harvester (see patent of Ukraine Me35413А, IPC

А0О1055/00 Bul. Me2. 2001), consisting of a horizontal shaft, on the axes of which 5-shaped knives are fixed in a vertical projection.

The disadvantage of the well-known high-speed cutting machine is the relatively large metal consumption of the structure, which affects the cost of the structure, as well as the insufficient stability of the bearings of the rotor shaft.

The basis of the useful model is the task of increasing the cutting force of the knife of the high-speed cutting device and reducing the metal consumption by implementing the high-speed cutting device of the beet harvester, which consists of a horizontal shaft, on the axes of which 5-shaped knives are fixed in the vertical projection, and the knife in the horizontal projection is U-shaped , and is equipped with stiffening ribs, which allows you to bring the center of gravity of the knife as close as possible to the surface of the cutting edge and obtain sufficient force for cutting sugar beet stalks, as well as due to this, reduce the metal consumption of the structure.

The knife of the high-speed cutting device is shown in Fig. 1, in Fig. - 2 section A-A in Fig. 1.

The knife 1 of the high-speed cutting device is 5-shaped in the vertical projection, mounted on the axis 2, fixed on the cheeks of the rotor shaft 4. The knife is U-shaped in the horizontal projection with stiffening ribs 5 of variable width with the center of gravity shifted to the cutting edge of the knife 6.

The twine cutter works as follows.

The rotor shaft 4 of the high-speed cutting device, which rotates, moves along the rows of sugar beets. Knife 1 has the ability to rotate around axis 2 and due to centrifugal force during rotation of the rotor shaft 4 deviates from its center. The cut chaff moves along the surface of the knife 1 and is fed to the auger of the chaff cutter and then loaded into the trailer of the transport vehicle, or spread on the field and used as fertilizer.

Due to the use of stiffeners 5 of variable thickness, the center of gravity of the knife 1 is moved to the surface of the cutting edge, which makes it possible to obtain sufficient cutting force when the body of the knife 1 is made of much thinner sheet material, compared to existing designs.

Rigidity ribs do not affect the technology of resharpening knife 1 and obtaining the necessary sharpness of the cutting edge during its resharpening. ; rick, o

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2 U y Z z / Pou k t: ma ih kny t

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Fig. 1. ! A-A! only "hy 5" y.

Fig. 2.

Claims (1)

The string-cutting device of the beet harvester, consisting of a horizontal shaft, on the axes of which 5-shaped knives are fixed in a vertical projection, which differs in that the knife in the horizontal projection is U-shaped and equipped with stiffening ribs, which are made of variable width with a shift in the center of gravity to the cutting edge of the knife.