SU1473734A1 - Device for investigating the operation of fertilizer spreader - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, devices for researching fertilizer spreading. The aim of the invention is to improve the accuracy of determining the patterns of distribution of particles when they interact with reflective surfaces. The device for researching the work of fertilizer spreaders includes a centrifugal disk 1 with blades 2. Axis 3 is rotatably mounted with a radial rod 4 with a tangential rod 7. On the tangential rod 7 there is a conical shell 9 fixed with the top of the cone upwards and having a slot 10 that is shaped along cone. On the inner side of the shell 9, rigidly bounding plates 11 and 12 are fixed along the edges of the slot 10 parallel to the tangential rod 7. At the peripheral end of the rod 7 the reflecting plate 13 is fixed at a fixed angle to it. The position of the reflecting plate 13 and the catcher 14 relative to the tangential rod 7 is recorded with using a scale and fixed with a screw. The blades 2 of the disk 1 are fed with particles of the material under study. From the blades, the particles fly like a fan at an angle Θ with different densities. The tangential rod 7 is parallel to the vectors of the absolute velocity V _{0 of the} particles. Some of the particles enter the slot 10 of the shell 9 and at an angle falls on the reflecting plate 13. Reflecting from it, the particles fly at different angles J _I. Due to the difference in the angles of reflection J _{I, the} particles fall into different sections of the catcher 14. Due to the difference of the angles J _I in the section of the catcher 14 with the coordinate λ _{I, there} appears a different mass of particles Q _I. The average value of the angle of reflection is determined: J _cf = λ _cf = Σλ _I Q _I / ΣQ _I. 3 il.

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, devices for researching fertilizer spreading.

The purpose of the invention is to improve the accuracy of determining the laws of distribution of particles when they interact with reflective surfaces.

FIG. 1 shows the device, a general view; in fig. 2 - radial and tangential rods with a disk; in fig. 3 - scheme of operation of the device.

The apparatus for investigating the operation of the fertilizer spreaders includes a centrifugal disk 1 with blades 2 mounted radially. The disk 1 is rigidly fixed on the axis 3. On the axis 3 rotatably mounted radial rod 4 having a graduated scale 5. On the radial rod 4 using a translational pair 6 is set perpendicular to the radial rod 4 tangential rod 7. The position of the tangential rod 7 on the radial rod 4 is fixed by means of a screw 8. On the tangential rod 7 there is fixed a conical shell 9 surrounding the centrifugal disk 1, which is located with the tip of the cone upwards and having a slot 10, which is formed along the cone forming part. On the inner side of the shell 9 along the edges of the slot 10 parallel to the tangential rod 7, restrictive plates 11 and 12 are rigidly fixed. At the peripheral end of the rod 7, a reflecting plate 13 with a catcher 14 is fixed at a fixed angle to it, which is made as a part of a hollow ring open with inside and divided by radial partitions 15 into sections. The central axis of the catcher 14 passes through the intersection point of the plane of the reflecting plate 13 and the longitudinal axis of the tangential rod 7 and lies in the plane of the reflecting plate 13. The position of the reflecting plate 13 and the catcher 14 relative to the tangential rod 7 is recorded using a scale 16 and fixed with a screw 17.

The device works as follows.

The blades 2 of the disk 1 are fed with particles of the material under study. From the blades 2, the particles are scattered like a fan at an angle © of different density depending on the angle of the methane sector. In the adjusted device the tangential rod 7 is located

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parallel to the vectors of the absolute velocity v0 of particle vanishing from the blades 2. Changing the position of the radial rod 4 on the axis 3, ensure that the slot 10 in the shell 9 is in the required part of the metani sector. Part of the particles enter the slot 10 of the shell 9 and at an angle a falls onto the reflecting plate 13. Reflected from it, the particles fly at different angles I ,. Due to the difference in the angles of reflection /, the particles fall into different sections of the catcher 14. Due to the difference of the angles /, in the section of the catcher 14 with coordinate K, there is a different mass of particles q ,. Determine the average value of the angle of reflection

hb-% Particles that did not fall into the slot 10 of the shell 9 are reflected from the inner surface of the shell 9 and fall onto the disk 1. To prevent particles from entering the reflective plate 13 at angles other than a, restrictive plates 11 are mounted along the edges of the slot 10 12, which allows to provide the required angle of incidence a, and, consequently, to increase the accuracy of determining the angles / cf.

Claims (1)

Invention Formula A device for examining the operation of fertilizer spreaders, including a centrifugal disk with radial blades, a rod that is rotatable relative to the axis of rotation of the disk, consisting of radially and tangentially mounted rods connected by a forward pair, and a particle catcher mounted on a tangential rod, characterized in that In order to improve the accuracy of determining the patterns of distribution of particles when interacting with reflective surfaces, the centrifugal disk is fitted with a fixed on tangential erzhne shell formed in a lateral surface of a truncated cone with a slot, at the edges of which are parallel to the tangential shaft on the inner side shell fastened restrictive plate and catcher is set for the shell and is connected to a tangential rod through the baffle capable of controlling the angle of installation with respect to the tangential rod 17 Fig.Z