RU124527U1 - DEVICE FOR INCREASING THE UNIFORMITY OF SPREADING OF BULK MATERIALS - Google Patents

Abstract

1. A device for distributing bulk materials over a surface, comprising a frame and at least one disk spreading device and one metering device mounted on it, the spreading device mounted on the shaft with the possibility of rotation of the shaft around a vertical axis by means of a rotation drive, the metering device has at least one discharge device, characterized in that the disk is mounted obliquely on the shaft, so that the plane of the disk of the spreading device is about a third angle α, the value of which is in the range 0 <α <π / 2, while it is possible to oscillate the disk in a transverse vertical plane across the direction of the spreader with a change in the angle of inclination of the disks from positive to negative with respect to the horizontal plane in the direction of spreading, moreover, the values of the inclination angles take less than the angle of sliding friction or rolling spread. 2. The device according to claim 1, characterized in that the disk is made of corrugated or damping material. The device according to claim 1, characterized in that the disk is made of elastic material.

Description

The proposed device relates to structures for uniform fertilizing, sowing seeds and the distribution of bulk materials on the surface.

There are various designs of spreading devices [1].

Their main disadvantages are insufficient uniformity of distribution of bulk solids, design complexity, as well as increased destruction of granules in contact with the surface of the spreading devices.

The closest in technical essence to the claimed utility model is the design presented in the description of the "Method of surface application of bulk materials and devices for its implementation" [2].

The disadvantages of the known device is the low uniformity of the distribution of granular substances and increased destruction of the granules in contact with the surface of the spreading devices.

The purpose of the proposed utility model is to increase the accuracy and quality of the spreading of fertilizers and other bulk solids, as well as the possible sowing of seeds.

This goal is achieved in that a device for distributing bulk materials on a surface, comprising a frame and at least one disk spreading device and one metering device mounted on it, the spreading device mounted on the shaft with the possibility of rotation of the shaft around a vertical axis by means of a rotation drive , the metering device has at least one discharge device, characterized in that the disk is mounted on the shaft obliquely, so that the plane of the disk of the spreading device leaves with the vertical axis of the shaft an acute angle α, whose value in the range 0 <α <π / 2.

At an angle α equal to (or approaching) to 0, the classical scattering pattern is implemented with high non-uniformity of the spreading of bulk solids on the surface. At an angle α approaching π / 2 (90 °), a significant decrease in the spreading area is observed, up to the formation of a narrow strip equal to the diameter of the disk. The optimum value of α is an angle less than π / 4 (45 °), which provides a sufficient spreading area and a uniform distribution of bulk solids on the surface.

Oscillatory movement in the transverse vertical plane across the direction of the spreader can be applied to the disk shaft with a change in the inclination angles of the discs from positive to negative with respect to the horizontal plane in the direction of spreading, and the value of the inclination angles must be taken less than the sliding friction or rolling angle of the spreading.

To excite self-oscillations, the disk can be made of corrugated or damping material, and in order to reduce the destruction of fertilizer granules or injure sown seeds, the disk can be made of elastic material.

The device operates as follows. During operation of the device, the disk (s) make oscillatory rotational movements, due to which the bulk material supplied to them from the hopper is scattered with a constantly changing flight path in all radial directions, which contributes to a more uniform distribution, and due to the use of an elastic coating material, less destruction of fertilizer granules is achieved or injury to sown seeds.

1. Khalansky V.M., Gorbachev I.V. Agreecultural machines. Agreecultural equipment. - M .: Kolos S, 2004. S.115-128.

2. Patent SU 17398883 A1. The method of surface application of bulk materials and devices for its implementation. Bull. Number 22. dated June 15, 1992

Claims (3)

1. A device for distributing bulk materials over a surface, comprising a frame and at least one disk spreading device and one metering device mounted on it, the spreading device mounted on the shaft with the possibility of rotation of the shaft around a vertical axis by means of a rotation drive, the metering device has at least one discharge device, characterized in that the disk is mounted obliquely on the shaft, so that the plane of the disk of the spreading device is about a third angle α, the value of which is in the range 0 <α <π / 2, while it is possible to oscillate the disk in a transverse vertical plane across the direction of the spreader with a change in the angle of inclination of the disks from positive to negative with respect to the horizontal plane in the direction of spreading, moreover, the values of the angle of inclination take less than the angle of sliding friction or rolling spread. 2. The device according to claim 1, characterized in that the disk is made of corrugated or damping material. 3. The device according to claim 1, characterized in that the disk is made of elastic material.

Images