RU222523U1 - Working body of mineral fertilizer spreader - Google Patents

Abstract

The utility model relates to agricultural engineering, namely to the working bodies of centrifugal spreaders of fertilizers and other bulk materials. To increase the accuracy of fertilizer application, in the working body of a mineral fertilizer spreader containing a solid disk having blades with sides and truncated outer edges, according to the utility model, some blades are made wide and others narrow and are located symmetrically in eight directions, while the blades are equipped with elastic attachments , the shape of all the blades and nozzles is made in the form of a truncated cone with L-shaped sides, and in the disk body there is a rolling bearing with a cover and an elastic coupling in contact with the rolling bearing, the cover of which is pressed down by the blades from above.

Description

The utility model relates to agricultural engineering, namely to the working bodies of centrifugal spreaders of fertilizers and other bulk materials.

A known working body of a centrifugal fertilizer spreader includes a conical disk with main and additional blades installed respectively on its upper and lower surfaces, in which the additional blades are rotatably installed and spring-loaded in the tangential direction. [Patent RU 2281640, IPC A01C 17/00, published 08/20/2006, Bull. No. 23].

The working body of a centrifugal fertilizer spreader is also known, containing a conical disk having blades, one of which is shorter and one longer, in which the blades have longitudinal partitions that act as sides and a beveled outer edge, and the total height of the blades corresponds to the distance covered by the falling from the metering device with a flow of fertilizers during a full rotation of the working body, and the height of each blade is proportional to the angle between the blades, measured in the direction of rotation. [Patent RU 2520006, IPC A01C 17/00, published 06/20/2014, Bull. No. 17].

A common disadvantage of the known working bodies is the insufficient accuracy of fertilizer application, due to the complexity of the design and high labor intensity, due to the need to regulate the location of the blades for spreading fertilizers to a certain width.

The technical result of the invention is to increase the accuracy of fertilizer application.

The technical result is achieved by the fact that in the working body of a mineral fertilizer spreader containing a solid disk having blades with sides and truncated outer edges, according to the utility model, blades with sides and truncated outer edges, characterized in that the blades are equipped with elastic nozzles and are arranged symmetrically along eight directions, while some blades are made wider than others, the shape of all blades and nozzles is made in the form of a truncated cone with L-shaped sides, and in the disk body there is a rolling bearing with a cover and an elastic coupling in contact with the rolling bearing, the cover of which is pressed down by the blades from above .

The novelty is due to the fact that due to design features, namely: the solid disk has blades of different widths - wide and narrow; the blades are equipped with elastic attachments; blades and nozzles have L-shaped sides; The blades are located symmetrically in 8 directions, which are made in the form of a truncated cone with beveled ends, which makes it possible to increase the accuracy of fertilizer application, as well as extend the service life of the blades, which can be rearranged.

The essence of the utility model is illustrated by drawings:

Fig. 1 - working body (top view);

Fig. 2 - working body (side view);

Fig. 3 - Profile of the blade (section A-A);

Fig. 4 - Profile of the blade (view B).

The working body of the mineral fertilizer spreader contains a solid disk 1 having blades 2 and 3 with L-shaped sides 4 and truncated outer edges. The blades 2 are made wide, and the blades 3 are narrow and are located symmetrically in 8 directions, which can be represented in the form of rays of an 8-pointed star. The blades are equipped with elastic nozzles (in the drawing, Fig. 1, Fig. 2 are represented by dotted lines). The shape of all blades is made in the form of a truncated cone, having L-shaped sides 4 with a height of no more than 10 cm. A solid disk is fixed to a housing 5, in which a rolling bearing 6 is located, as well as a swinging elastic coupling 7, which connects the shaft 8 and is in contact with rolling bearing 6. The cover 9 of rolling bearing 6 is pressed down by blades 2 and 3 from above.

The working body of the mineral fertilizer spreader works as follows: the width of the spread of fertilizers is first determined. Based on this, it is determined at what frequency the solid disk 1 will rotate. At the beginning of the movement, the swinging elastic coupling 7 transmits torque to disk 1 with minimal chances of breaking the shaft 8. Next, the fertilizer falls on the blades 2 or 3, comes into contact with the side 4 and flies out. Due to the fact that blades 2 and 3 are of different widths, depending on which blade the fertilizer falls on, there will be a different reach length, which gives us more accurate application of fertilizers. Due to the fact that some of the disks in the spreader move clockwise and the other counterclockwise, you can swap blades 2 and 3, either from the same disk 1 or from another. It is also possible to replace not only blades 2 and 3, but also elastic nozzles, due to the fact that they are composite, which greatly simplifies maintenance in the event of a malfunction in the field.

Claims (1)

The working body of a mineral fertilizer spreader, containing a body with a solid disk having blades with sides and truncated outer edges, characterized in that the blades are equipped with elastic nozzles and are located symmetrically in eight directions, while some blades are made wider than others, the shape of all blades and nozzles is made in the form of a truncated cone having L-shaped sides, and in the disk body there is a rolling bearing with a cover and an elastic coupling in contact with the rolling bearing, the cover of which is pressed down by the blades from above.

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