SU1457855A1 - Shredding apparatus for forage harvester - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to forage harvesters. The purpose of the invention is to increase productivity. The chopping unit of the forage harvest combine contains placed in the casing. 1 drum 2 with knives 3. The drum 2 is made in the form of a truncated cone, cantilever-mounted on the shaft 4 and supported by the rollers 5. The counter-cutting plate 6, filled in the form of a tray through which the green mass is fed, enters the drum from the inside and during the grinding process interacts with the knives 3. The cut green mass is retracted from the cutting zone on the opposite side of the knife for unloading. In this case, the knife performs the function of spikes. 3 il.

Description

. /

eleven

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to forage harvesters.

 The purpose of the invention is to increase the productivity of the chopping apparatus of a forage harvester.

FIG. 1 shows the chopping apparatus of a forage harvester (in dimetry); in fig. 2 - chopping drum, section; in fig. 3 - the relative position of the knife and the counter plate, as well as the forces acting on the cut off part of the green mass in the apparatus (P is the force of feeding the green mass; Rc is the centrifugal force from the moving knives; Pp is the resultant force);

The shredding apparatus of the forage harvester contains drum 2 with knives 3 placed in casing 1. Drum 2 is made in the form of a truncated cone, cantilever-mounted on shaft A and supported by rollers 5. Counter-cutting plate 6, made in the form of a tray along which to knives 3 is fed from the biraem is green mass, enters the drum from the inner side

from the base of the cone. Partitions 7 and 8 are installed in the chopper cone, which prevent the selection of green mass through the gaps .. J The chopper of the forage harvester works as follows.

The harvested green mass approaches the knives 3 from the inside, is cut and taken away from. cutting area on the opposite side of the knife for unloading. And the knife in this case

o

five

0

five

performs the function of firewood, accelerated crushed green mass

Making the drum 2 conical allows a reduction in the turning to the cutting edges of the knives of the flow of green mass going to the grinding. In addition, the location of the knives on the side surface of the cone makes it possible to disperse the crushed green mass, providing unloading of the apparatus without additionally installed firewood, and direct the mass flow to the neck of the casing 1 of the chopping ani- para.

The supply of green mass to the knives 3 on the inner side of the drum prevents its clogging due to the fact that the cut off particles of green mass are immediately diverted by the centrifugal force along the plane of the knives from the cutting zone. Such a trajectory of the movement of green mass in the grinding apparatus allows to prevent its clogging, to exclude the re-crushability of green mass, the rapid blunting of the blades.

Claims (1)

Invention Formula Grinding machine. a forage harvester containing a drum with flat knives placed in a casing and a shearing plate, characterized in that, in order to increase productivity, the drum is conical and fixed to the shaft as a cantilever, and the opposite plate is installed inside the drum and has a tray, cutting edge which is equidistant to the cutting edge of knives. 7 6