RU2442656C1 - Gringing mill installment - Google Patents

Abstract

FIELD: mechanical engineering industry.

SUBSTANCE: invention designated for milling grains and other plant products; the gringing mill installment comprises the bed frame, two eddy rollers, disc located between the eddy rollers, eddy rollers drive and the mechanism of loading and unloading; the pockets of the sidewall surfaces of the disc made in the shape of a sheave accommodate mounted therein the sets of dismountable plates; the external surfaces of the plates have a different degree of undulation forming the acting surface of the disc; the disc shaft is connected to the eddy rollers by means of pairs of the bevel wheels positioned to be rotated on the axis made in the shape of lever; one end of each lever is fixed on the oscillation pin mounted on the bed frame and other ends of the levers are connected with sliding blocks mounted on the runner slides; the runner slides are spring-pressed and mounted to be shifted relatively the rods pivotally connected to the ends of the double-arm levers; the other ends of these levers pivotally connected to the adjusting nut, the actuator screw of the nut is fixe on the immovable support mounted on the bed frame.

EFFECT: reduction of the products grinding operation ratio and consumption of specific quantity of metal per the structure of the grinding mill installment.

1 dwg, 2 dwg

Description

The invention is intended for grinding grain and other products of plant origin.

Known roller machines containing a bed, grinding rollers and their drive, distribution and metering rollers, an aspiration device, a feed pipe, stop mechanisms and adjustments of the movable roller ("Analysis of the design of flour mill rollers" / V.V. Starostin and others - M. , 1993. - 54 pp. “Machines and equipment for food production.” In 2 books, Book 1: Textbook for Universities / S.T. Antipov, I.T. Kretov et al. - M.: Higher school, 2001 .-- 703 p.).

The disadvantages of roller machines include the fact that the impact of the working bodies of the machine on the crushed product occurs in a tapering press channel of a very small length, which leads to the need for repeated repetition of the grinding process of the processed product to obtain its particles of the required size.

The closest analogue of the proposed design of the machine is a roller machine containing a bed, two rollers, a disk located between the rollers, an inter-roller transmission, a dump mechanism, in which the length of the zone of active influence on the crushed product from the working bodies of the roller machine is significantly increased due to that a rotating disk is placed between the rollers, which reduces the repetition rate of the process of grinding the processed product (RF Patent for the invention No. 2376064 dated 05/04/08).

The disadvantages of this design of the roller machine include the fact that the disk placed between the rollers during the operation of the machine is subjected to intense abrasion, which leads to a decrease in the degree of roughness of the working surfaces of the disk and, consequently, to an increase in the multiplicity of the product grinding process, to a decrease in productivity machine, and then leads to the need to replace the disk as a whole, which is economically disadvantageous. In addition, the roller mill, taken as an analogue, is designed to process only one type of raw material, since the degree of roughness of the working surface of the disk cannot be changed, the machine has a large metal consumption and dimensions due to the fact that the grinding rollers and adjusting devices that ensure the operation of the machine, placed on several levers located in vertical planes.

The objective of the invention is to develop the design of the disco-roller machine providing an increase in the specific productivity of the machine, the versatility of its use, reducing the size.

The technical result of the invention is to reduce the multiplicity of the process of grinding the product, as well as the intensity of the disco-roller machine.

The technical result is achieved by the fact that in a disco-roll machine containing a bed, two rollers, a disk placed between the rollers, an inter-roller transmission, a dump mechanism, in the niches of the side surfaces of the disk made in the form of a pulley, sets are mounted with the possibility of fixing them removable plates, the outer surfaces of which have a varying degree of roughness and form the working surfaces of the disk, and the disk shaft is connected to rollers with the possibility of rotation on the axle using bevel pairs of gear wheels made in the form of levers parallel to the working surfaces of the disk in a horizontal plane, with one end of each of the levers mounted on a swing axis mounted on the bed, and the second ends of the levers connected to the sliders mounted on adjustable guides provided with adjustable stops of the sliders mounted on bed, and these sliders are spring-loaded and installed with the possibility of their displacement relative to the rods pivotally connected to the ends of two-arm levers having axes of rotation, size mounted on the bed, and the second ends of these levers by means of hinges are attached to the adjusting nut, the lead screw of which is fixed on the fixed supports mounted on the bed.

The use of such a design of the disk-roller machine allows to increase the specific productivity of the roller machine by reducing the multiplicity of the product grinding process, since, as the working surfaces of the disk wear during operation of the roller machine, worn plates placed on the disk are replaced with spare ones; provides the versatility of using a roller mill due to the fact that when switching to the processing of another type of raw material, plates with such roughness characteristics of the working surfaces as are necessary for a particular product are installed; reduces machine downtime, and also reduces operating costs for its repair due to the fact that instead of replacing a disk that has exhausted its resource, only worn plates located in disk niches are replaced; reduces the metal consumption and dimensions of the machine due to the fact that each of the rollers is placed on one lever located in a horizontal plane.

Thus, the set of essential features of the invention contributes to the achievement of the desired technical result.

Figure 1 shows a General view of the disco-roller machine. Figure 2 is a top view of figure 1.

The disco-roller machine contains a bed 1, rollers 2, a disk 3 with niches made therein, removable plates 4, a belt drive 5, an electric motor 6, bevel gears 7, mounting levers of the rollers 8, swing axes of the levers 9, springs 10, two shoulders levers 11, the axes of the two-arm levers 12, the adjusting nut 13, the lead screw 14, the bearings of the lead screw 15, the sliders 16, the guides 17, the travel stops of the sliders 18, the rods 19, the feed device 20, the niche of the disk 21, the tension nuts 22.

Disco-roller machine operates as follows. The product enters the machine from the feed device 20 into two press channels formed by rollers 2 and a rotating disk 3 rotating towards each other with the same peripheral speed. Disk 3 is driven into rotation from an electric motor 6 through a belt drive 5. The material is crushed in wedge channels due to its compression and shear between the convex surfaces of the rollers 2 and the removable rough plates 4 mounted in the niches 21 of the disk 3. The forces necessary for grinding the product are created by compressing the springs 10 using tension nuts 22. When solid particles (impurities) get into the wedge channels, the gap between the rollers and the disk increases due to the movement of the rollers 2. In this case, the springs 10 are compressed and the sliders 16 of the rollers 2 are shifted relative to the rods 19, and the levers of the rollers 8 are rotated relative to swing axles 9. To increase the gap between the rollers 2 and the disk 3 (during the blade procedure), without unloading the springs 10, rotate the spindle 14, due to which the two-arm levers 11 rotate relative to their axes 12, and the rods 19 retract slogans together with levers 8 fixed on them, and as a result, the rolls 2 move away from the disk 3. When the product feed for processing decreases, the springs 10 are unclenched and then the sliders 16, and with them the levers 8 with the rollers 2 mounted on them, are shifted closer to the surface disk, which provides the effort necessary to grind the product. In the event of the product being cut off for processing, the springs 10 are unclenched to a greater extent and the sliders 16, displaced by the elastic forces of the springs, abut against the adjustable stroke limiters of the sliders 18, which prevents the surfaces of the rolls 2 from contacting the working surface of the removable plates 4 installed in the disc niches 21 3. With a decrease in the roughness of the working surfaces of the removable plates 4 during the operation of the disco-roller machine due to abrasive wear or when switching to grinding a new type of product that requires different characteristics ISTIC Surface roughness, a set of worn plates to be replaced with another appropriate surface characteristics.

Claims (2)

1. A disk-roller machine containing a bed, two rollers, a disk located between the rollers, an inter-roller transmission, a dump mechanism, characterized in that in the niches of the side surfaces of the disk, made in the form of a pulley, sets of removable are placed in them plates, the outer surfaces of which have varying degrees of roughness and form the working surface of the disk. 2. The disk-roller machine according to claim 1, characterized in that the disk shaft with the help of bevel pairs of gears is connected to rollers arranged for rotation on axes made in the form of levers parallel to the working surfaces of the disk in a horizontal plane, this one end of each of the levers is mounted on a swing axis mounted on the bed, and the second ends of the levers are connected with sliders mounted on guides mounted on the bed equipped with adjustable stroke limiters of sliders, moreover The said sliders are spring-loaded and installed with the possibility of their displacement relative to the rods pivotally connected to the ends of two-arm levers having rotation axes located on the bed, and the second ends of these levers are connected by means of hinges to the adjusting nut, the screw of which is fixed on the fixed supports mounted on the bed .

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