RU2816978C1 - Grain grinder - Google Patents

Abstract

FIELD: agricultural machinery.

SUBSTANCE: invention is intended for mechanized processing of grain crops into mixed fodders, and can be used in farms and individual farms. Device for grain grinding includes a frame with a loading hopper and an electric motor fixed on it, having an opening for grain output, a sieve, a grinder in the form of a plate and a reflector. Fixed sieve is fixed on the bed, on which a rotary sieve which is tightly adjacent to the sieve is installed with the possibility of turning by means of an adjusting thumb-screw, note here that said rotary screen features cylindrical shape and is axially coupled with said screen. Holes on the fixed sieve and the rotary sieve have the same dimensions and arrangement to ensure the possibility of changing the flow section of the holes due to the rotation of the sieve and obtaining different grain grinding.

EFFECT: device for grain grinding allows to obtain different grain grinding without replacement of sieves.

1 cl, 2 dwg

Description

The invention relates to agricultural machinery and is intended for mechanized processing of grain crops into compound feed and can find application in farms and individual farms.

A device for grinding grain is known, containing a frame, a drive, a sieve and a reflector, and a loading hopper with a window [1].

A device for crushing grain is also known, containing a frame with a loading hopper mounted on it, equipped with a supply pipe, a sieve in the form of a truncated cone, a reflector, a drive, a vertical drive shaft installed in the frame with upper and lower bladed disks [2].

The next technical solution is a grain processing device containing a housing, rotors, a grain feeder tray, a number of abrasive discs, the central holes of the lower discs are equipped with sieves with different cell sizes [3].

The prototype is a device for grinding grain, containing a frame, a hopper, a grinder, a sieve, an electric motor and a reflector [4].

The disadvantage of the known designs is the difficulty of replacing sieves to change the grinding module, as well as the impossibility of adjusting it.

The objective of the present invention is to eliminate these disadvantages.

The technical result is an expansion of the functionality of the device for grinding grain.

This technical result is achieved by the fact that in a device for grinding grain containing a frame with a loading hopper and an electric motor attached to it, having a window for grain exit, a sieve, a grinder in the form of a plate and a reflector, according to the invention, a stationary sieve is attached to the frame, on which the possibility of rotation using an adjusting thumbscrew, a rotary sieve is installed tightly adjacent to the sieve, while the rotary sieve is made of a cylindrical shape and connected to the sieve along the axis, and the holes on the fixed sieve and the rotary sieve have the same dimensions and location to ensure the possibility of turning the sieve around the axis of changing the flow area of the holes and obtaining different grain grinding.

The device for grinding grain is illustrated by diagrams:

fig. 1 – general view of the proposed device for grinding grain;

fig. 2 – section A-A of a device for grinding grain.

The device for grinding grain includes a frame 1 on which a loading hopper 2, a grinder 3, a fixed sieve 4, a reflector 5 and an electric motor 6 are mounted with a casing 7. A control panel 8 is mounted on the casing to turn on the electric motor 6. The frame 1 is made in the form of a plate with loading window 9.

A rotary sieve 11 with a lever 12 is installed on a fixed sieve 4, which can be rotated using an adjusting thumbscrew 10. To return the sieve to its original position, there is a spring 13. The rotary sieve 11 is made of a cylindrical shape (along the outer diameter of the sieve 4) and is fixed along the axis with sieve 4 using rivet 14.

The holes on the sieve and on the sieve have the same dimensions and location, which makes it possible to change the flow area by rotating the sieve around its axis.

The grain grinding device operates as follows.

The device is connected to the network and, using the control panel 8, the electric motor 6 is turned on and the chopper begins to rotate. After reaching the nominal speed of the electric motor 6, grain is poured into the hopper 2, which through the window 9 enters the grinding chamber, where when the grain collides with the grinder 3 and the sieve 4, it is broken into pieces.

The crushed product through the holes in the side cylindrical part and the bottom of the sieve 4, reflected from the walls of the reflector 5, enters the container.

To change the grind size, a mechanism is used to regulate it using a thumbscrew 10, by unscrewing or tightening it. This allows you to rotate the sieve 11 around its axis, thereby changing the flow area of the holes. The installed spring 13 returns the sieve 11 to its original position when the wing screw 10 is unscrewed.

Thus, the grain grinding device allows you to obtain different grain grinds without replacing sieves.

List of used literature:

1. Patent 2534111 B02C 13/14. Device for grinding grain / Lobanov V.I., Buzoverov S.Yu., Zhukov M.V.; applicant and patent holder Vladimir Ivanovich Lobanov. 2013132330/13; application 07/11/2013; - Published November 27, 2014 Bulletin. No. 33 – analogue.

2. Patent 181466 B02C 13/14. Device for crushing grain / Ziganshin B.G., Dmitriev A.V., Sabirov B.M. and etc.; applicant and patent holder Federal State Budgetary Educational Institution of Higher Education "Kazan State Agrarian University". 2017115268; application 04/28/2017; Publ. 07/16/2018 Bulletin. No. 20 – analogue.

3. Patent 93040002 Russian Federation IPC B02B 3/02. Device for grain processing / Malakhov N.P.; applicant and patent holder Family private enterprise "Technology". 93040002/13; application 08/06/1993; - Published October 27, 1996 – analogue.

4. Patent 2140325 Russian Federation IPC B02C 9/04. Device for grinding grain / Maltsev P.V., Bersenev A.Yu., Luzgin A.F.; applicant and patent holder Pavel Viktorovich Maltsev, Andrey Bersenev.

Claims (1)

A device for grinding grain, containing a frame with a loading hopper and an electric motor attached to it, having a window for grain exit, a sieve, a grinder in the form of a plate and a reflector, characterized in that a stationary sieve is fixed to the frame, which can be rotated using an adjusting screw - a rotary sieve is installed tightly adjacent to the sieve, wherein the rotary sieve is made of a cylindrical shape and is connected to the sieve along the axis, and the holes on the fixed sieve and the rotary sieve have the same dimensions and location to make it possible to change the flow area of the holes by rotating the sieve around the axis and obtaining different grinding grains.