SU1579480A1 - Feed cutter - Google Patents

Abstract

The invention relates to a device for grinding feed used in agriculture. The aim of the invention is to reduce the specific energy consumption for grinding. The shredder contains a feeder, made in the form of a feed conveyor, on which a pressure conveyor is mounted. At the outlet of the feeder, there is a shearing plate and a drum with knives. The drum is mounted on the shaft 6 in the slots with the possibility of reciprocating movement along the axis of the shaft. At each end, the drum 4 is spring-loaded relative to the shaft by springs 7 and 8, which are mounted so as to adjust their rigidity. When cutting the mass spring 7 moves the drum along the axis of the shaft 6 to the right. The spring 8 at the same time is first unclenched and then compressed, see the movement of the drum. As a result of the lateral (sliding) movement of the knife 5, the normal pressure on the feed is reduced and the pinch between the knife 5 and the shearing plate 3 is reduced. 3 Il.

Description

Type A

8 3 S

SP XI

FIG. 2

The invention relates to a device for grinding feed used in agriculture.

The purpose of the invention is to reduce the specific energy consumption for grinding.

FIG. 1 shows a feed chopper; in fig. 2 is a view A of FIG. one; FIG. 3 is a view B of FIG. 2,

The feed chopper includes a feeder, made in the form of a feeding conveyor 1, above which a pressure conveyor 2 is installed. At the exit of the feeder are the shearing plate 3 and the drum 4 with knives 5.

The drum 4 is mounted on the shaft 6 on the splines with the possibility of reciprocating movement along the axis of the shaft. At each end of the drum 4 is spring-loaded relative to the shaft springs 7 and 8, which are installed in the cage 9 with the ability to adjust their stiffness due to the castle nuts 10.

Grinder feed works as follows.

The food to be crushed is layered on the conveyor 1, which with the help of the clamping conveyor 2 feeds it to the cutting drum 4. After falling between the knife 5 of the drum 4 and the counter plate 3, the feed is first compacted to a certain limit, then cut. During compaction of the feed, a lateral force occurs, which causes the drum to move to the left along the axis of the shaft 6 and

1

compress the spring 7. When cutting the comminuted mass, plastic deformations are less elastic that occur during compaction of the feed, resulting in a spring 7

moves the drum along the axis of the shaft 6 to the right. The spring 8 at the same time is first unclamped, and then compressed, seeming to move the drum. The uneven supply of feed to the cutting zone, its various physicomechanical properties also contributes to the movement of the drum 4 along the axis of the shaft 6.

As a result of the lateral (sliding) movement of the knife 5, not only does it penetrate the feed, but the normal pressure on the feed necessary to start cutting, i.e. less pre-compaction of the feed is required, which in turn leads to a decrease in its

pinches between the knife 5 and the shearing plate 3.

Claims (1)

Claims of feed crushing containing The feed and push conveyors, the knife drum mounted on the shaft and the counter-cutting plate are different because, in order to reduce the specific energy consumption, the knife drum is mounted on a splined shaft and is mounted for movement along an axis, while at each end the drum is spring-loaded relative to the shaft by means of springs with adjustable stiffness. FI.3