SU1393340A1 - Working member for centrifugal distributor of loose fertilizers - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery. The aim of the invention is to increase the uniformity of the spreading of fertilizers. The working body contains a disk with paddles, which along the entire length have a cavity 4, partially filled with liquid 5. In the liquid, solid bodies 6 of circular shape of different density and size are placed. When the torque changes due to a change in the kinetic energy, the liquid and solids move in the cavity along the radius. This leads to a change in the center of application of the rotating mass and stabilization of the rotation frequency. 2 hp f-ly, 3 ill.

Description

(L

WITH

Fie.2

The invention relates to agricultural machinery, in particular to the spreading of mineral fertilizers.

The aim of the invention is to increase the uniformity of the sowing of fertilizers by the central working body by stabilizing the frequency of rotation of the disks.

On fig.G presents the working body, the top military; nafig.2 - section aa in figure 1; on fig.Z - section bb in figure 2.

The working body of the centrifugal bulk fertilizer spreader includes a tapered disk 1 with blades 2, mounted on shaft 3. The blades 2 have a cavity 4 along their entire length. 4. The cavity

4 is partially filled with liquid 5, in which solid bodies 6 of circular shape of different density and size are placed.

The proposed working body works as follows.

When the conical disk I rotates, the fertilizers under the action of centrifugal force freely come off the blades 2 and are distributed throughout the field. The working seizing of the sieving and its uniformity occurs at a given rotational speed of the (o) -disk 1. To maintain a constant rotational frequency in the case of a change in the transmitted torque through the shaft. 3, is the presence of fluid

5 with solid inclusions 6 in the cavity 4 of the blades 2. It is known that kinetic

Research institute drive energy

- - TP 2

(one)

2tg

moment of inertia of the body; disk rotational speed; body mass;

center (radius) of rotational mass application

From where

but

(2)

mr

those. the square of the rotational frequency is in inverse proportion to the square of the center of application of the rotating masses.

When the disk I rotates, the fluid 5 with the bodies 6 moves under the action of centrifugal forces to the extreme maximum position, without disturbing the uniform operation of the spreader.

In the event of a decrease in the torque supplied to the disk 1 from the shaft 3, centrifugal seeps acting on the liquid 5 and solid bodies 6 decrease, and they rush towards the center of the tapered disk I. This changes

five

0

five

0

five

0

five

0

center (g

Max

min

) application of mass

five

By decreasing, it contributes to an increase in the frequency of rotation of the disk 1-, since the stored kinetic energy remains constant for a while (2), which contributes to the stabilization of the frequency of rotation of the disk and the uniform distribution of fertilizer over the area.

The inclusion of solid bodies 6 in a liquid of different densities and sizes, which move in cavity 4 at different speeds, reduces the sharp movement of the center of mass, thereby facilitating smoother control of the frequency of rotation of the disk.

When resuming the supply of torque, the working body continues to operate at the same level.

The use of the proposed device increases the uniformity of the sowing of fertilizers by stabilizing the rotation of the centrifugal disks, which contributes to an increase in the yield of agricultural crops.

Claims (3)

1. A working organ of a centrifugal bulk fertilizer spreader containing cone disks with blades, characterized in that in order to improve the uniformity of fertilizer spraying by stabilizing the frequency of rotation of the disks, the blades are made hollow to partially fill them with liquid. 2. The working body according to Clause I., which is based on the fact that solid bodies of a rounded shape are placed in the cavity of each blade along with the liquid. 3. The working organ of claim 1, wherein the solids have different sizes and are made of different materials. Fm.1 Fig.Z