RU2687192C1 - Crushing machine - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: grinder relates to loose material processing devices and can be used in food industry or fodder production. Device consists of a stator casing and a driving rotor, a receiving chamber, a crushing chamber and an unloading chamber. Device includes loading hopper connected with receiving chamber, destructive element fixed on stator, and rotor made corrugated with possibility of initial product grinding. Crushing element is made in the form of a cylinder with possibility of rotation relative to its own longitudinal axis and grinding the initial product at interaction with the corrugated surface of the rotor.

EFFECT: higher wear resistance, operational reliability and efficiency of grinding.

1 cl, 5 dwg

Description

The technical field to which the invention relates.

The grinder refers to devices for processing by grinding a bulk product and can be used in the food industry or in fodder production.

The level of technology

Known design grinder, consisting of a stator housing and placed in its cavity, the drive rotor, crushing and unloading chambers and connected to the stator loading hopper, the crushing chamber and the rotor, are designed to interact with the crushing of the original product (see RU patent No. 2252075 , VS 13/06, published 5/20/2005).

The disadvantages include the metal case, the rotor design, which does not allow to adjust the position of the working elements, which limits the versatility and increases the wear of the working surfaces of the shredder.

The closest in technical essence to the proposed invention is a chopper consisting of a stator housing and a drive rotor placed in its cavity, a receiving, crushing, unloading chamber, as well as a loading hopper connected to the receiving chamber, rigidly fixed on the stator and the rotor corrugated with the possibility of grinding the original product (see patent RU 2552958, В02С 4/10, В02С 4/28, published 10.06.2015).

The disadvantage of this grinder is increased wear of the destructive element mounted on the stator, which reduces the maintainability, reliability and efficiency of reliable operation of the grinder.

DISCLOSURE OF INVENTION

The technical result, which can be achieved using the present invention, is to increase wear resistance, reliability and efficiency of the grinding process, by reducing the wear associated with the original product and the surface of the rotor destructive element mounted on the stator.

The positive effect on reducing wear can be described as follows. In the working cavity of the shredder, there is a fixed destructive element mounted on the stator and a rotating rotor with an n-th number of flutes on its surface, each of which interacts with a fixed destructive element during one revolution. Thus, the wear of the flute of the rotor will be n times less than the wear of the stationary destructive element, per revolution. Consequently, the use of a freely rotating cylinder instead of a stationary destructive element will significantly reduce wear.

The technical result is achieved using a shredder consisting of a stator housing and a drive rotor placed in its cavity, a receiving, crushing, unloading chambers, and also connected to a receiving hopper chamber, a destructive element fixed on the stator and a rotor made corrugated, and the destructive element made in the form of a cylinder, free-moving relative to its own longitudinal axis and grinding the original product, placed on the corrugated surface of the rotor.

A feature of the crusher is that the free-rotating smooth cylinder is mounted on the stator. Its free rotation around its own axis allows to increase the life of the working surface and easily adapt the crusher to various initial products of crushing, varying the working gap if necessary. To enhance the interaction on the original product in the zone of destruction due to friction, the destructive element, made in the form of a cylinder, as well as the rotor can have a corrugated surface.

The grinding process is as follows. Arriving from the hopper into the chopper cavity, grain or bulk raw material fills the receiving chamber, enters the longitudinal rifles (grooves) of the rotor and is transported to the destructive element attached to the stator, where their original shape changes (crushing, chipping, etc.). ) with simultaneous rotation of the destructive element in the form of a cylinder. Then the material moves to the discharge chamber.

Brief Description of the Drawings

FIG. 1 shows a general view of the shredder.

FIG. 2 shows a cross-section of the working area of the shredder.

FIG. 3 shows the cylinder mount on the stator.

FIG. 4 shows a transverse view of the destructive element.

FIG. 5 shows the operation of the shredder.

The implementation of the invention

The shredder 1 consists of a stator housing 2 and a drive rotor 3, receiving 4, crushing 5, unloading 6 chambers placed in its cavity, as well as a hopper 7 connected to the receiving chamber, destructive element 8 mounted on the stator and the corrugated surface 9 on the rotor 3 with the possibility of grinding the original product, and the destructive element 8 on the stator 2 is made in the form of a cylinder 10 rotating about its own longitudinal axis on the shaft 11 fixed on the lugs 12 by nuts 13 and having a smooth working surface spine 14.

The possibility of fixing a free-rotating cylinder 10 on the stator improves the efficiency of the chopper and its maintainability. In particular, the destructive element in the form of a cylinder 10 freely floating around its own axis allows an additional increase in the life of the shredder, selection of destructive elements 8 according to the type of material, the structure of their working surface 14, the working gap, and it is possible to replace element 8 when it is worn or broken.

The work of the shredder and the movement of the original product (transportation, processing into the crushed material and removal from the working cavity) are shown in the diagrams. Coming from the hopper 7 into the chopper cavity, the source material fills the receiving chamber 4, enters the longitudinal rifles (grooves) 9 of the rotor 3 and is transported to the destructive element 8 mounted on the stator 2, where it is crushed. When the rotor 3 rotates counterclockwise, the initial product interacts with the corrugated surfaces of the rotor 9 and the surface 14 of the destructive element, made in the form of a cylinder 10 and its rotation clockwise. Then the crushed material is moved to the discharge chamber.

To increase the effectiveness of the impact on the original product in the zone of destruction, the cylinder 10 of the destructive element 8 mounted on the stator 2 can be performed with a corrugated working surface 14.

The present invention in comparison with the known technical solutions increases the maintainability of the grinder, reduces the wear of its working surfaces, in particular the destructive element, fixed on the stator and working on the grinding of the original product together with the rotor.

Claims (2)

1. Grinder, consisting of a stator housing and a drive rotor, receiving, crushing and unloading chambers placed in its cavity, as well as a hopper connected to the receiving chamber, a destructive element mounted on the stator, and a rotor made corrugated, with the possibility of grinding the original product, characterized in that the destructive element is designed in the form of a cylinder with the possibility of rotation relative to its own longitudinal axis and grinding the source product when interacting with the corrugated surface of the rotor . 2. Grinder under item 1, characterized in that the surface of the cylinder destructive element is made of corrugated.

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