SU1266575A1 - Grain cleaner and grader - Google Patents

Abstract

This invention relates to the field of sorting. The purpose of the invention is to improve the quality of sorting due to the intensification of loosening of the sorted material. For this, the rippers on the inner surface of the cylindrical rotor (P) 4 are made in the form of an extended twisted cylindrical spring (CPU) 5. At the same time, the CPU 5 is installed with limited movement relative to the inner surface of P 4. The grain mixture from the spreading device 7 installed in the upper part of P 4 enters the inner surface of P 4. Under the influence of centrifugal forces, gravity and oscillatory movements of the P 4 grain, the mixture moves downwards. Thus, the passage between the turns of CPU 5, the mixture is self-sorted. The impact of the turns of the CPU 5 is carried out on the entire cross section of the mixture layer. Under the action of the P 4 oscillations, stable oscillations of the turns of the CPU 5 are established, which increases the intensity of particle motion in the layer. In the lower part of P 4, the mixture is separated by a separating device 8. (L 1 Cp. Of the file, 3 ill. 1chE 05 O5 sl

Description

The invention relates to the sorting of solid materials, seeds of agricultural crops, and more specifically to grain cleaning and sorting machines, and can be used in agriculture, in the mill and cereal industries, as well as in other sectors of the economy, where it is necessary to separate mixtures but specific weight.

The purpose of the invention is improving the quality of sorting due to the intensification of loosening of the sorted material.

In FIG. 1 shows a structural diagram of a grain cleaning and sorting machine, section; in FIG. 2 - the positions occupied by the coil of the spring, when it swings in a separable layer; in FIG. 3 is a view A in FIG. 1.

The machine contains located in the casing 1, rotating from a pulley 2 and oscillating from a vibrator 3, a vertical cylindrical rotor 4 with a coiled coil spring-ripper 5, a vertical shaft 6, in the upper part of which there is a spreading device 7, and in the lower part a separation device in the form of a ring 8 with unloading scrapers 9 for a light fraction, unloading scrapers 10 for a heavy fraction, trays 11, 12.

The redistribution process occurs as follows.

The grain mixture from the spreading device 7 enters the inner surface of the rotor 4. Under the action of centrifugal forces, gravity and oscillatory movements of the rotor 4, the grain mixture moves down to the ring 8. Passing between the coils of the coiled coil spring-ripper 5, the mixture is self-sorted. In this case, the spring turns affect the entire cross section of the mixture layer.

Approaching the bottom of the rotor 4, the mixture is separated by a ring 8, after which the light and heavy fractions are sent to

Figure 2

Tehred I. Veres Corrector I. Muska

Circulation 565 Subscription

VNIIIPI of the USSR State Committee for Inventions and Discoveries

113035, Moscow, Zh-35, Raushskaya nab., D. 4/5

Branch of the PPP "Patent", Uzhhorod, st. Project, 4

Editor M. Tovtin

Order 5695/5, windsheeling trays 11 and 12. Due to the inertia forces arising from vertical vibrations of the rotor 4, the coil of the spring-ripper 5 starts to swing relative to the attachment point ₅ (point B in Fig. 2). At the same time, to facilitate the swing of the spring-ripper 5 in the coil layer, it is attached to the inner surface of the rotor 4 not rigidly, but freely, i.e. between the mount, for example, a bracket (not shown) and the coil of the spring there is ¹⁰ clearance. This free fastening of the turns of the spring-ripper 5 facilitates the establishment of stable swings under the action of the oscillations of the rotor 4.

With these swings or angular oscillations of the turns relative to the fasteners, the intensity of the movement of particles in the layer increases, i.e. the effect of rippers on the moving layer is carried out more actively, which means that the process of redistribution occurs much faster.

Thus, a coiled cylindrical spring-ripper loosely fixed on the inner surface of the rotor intensifies the process of redistributing the mixture, which helps to increase the productivity of the machine.

Claims (2)

Claim 1. Grain-cleaning and sorting machine, including a cylindrical rotor with ₃₀ rippers on the inner surface, a rotor drive and rotor vibrations, separation and spreading devices installed respectively in the lower and upper parts of the rotor, characterized in that, in order to improve the quality of sorting ₃₅ due to intensification of loosening of the sorted material cultivators are made in the form of a stretched twisted coil spring. 2. Machine by π. 1, characterized in that the spring is installed with the possibility of limited movements relative to 40 of the inner surface of the rotor. View