BR202012033309Y1 - CONSTRUCTIVE ARRANGEMENT APPLIED TO RATION MIXER - Google Patents

Abstract

The rotor arrangement for the feed mixer is a rotor (1) made of six stars (2), each containing three arms (3). These stars (2) are arranged in pairs and each pair of stars form a three-armed beater. These beaters are welded to a central shaft (5) so as to form a propeller along the length of said shaft, with scrapers (6) mounted on springs (4) on springs (7) at the ends of each arm of each beater. (4), which provides considerable relief from the pressure exerted by the mixture against the walls of the equipment.

Description

The present patent application concerns a constructive arrangement applied in a rotor for total feed mixer applied in the agricultural sector.

State of the art

The rotor is a component part of feed mixers and is primarily responsible for mixing the nutritional diets of animals. The mixture made by the rotor directly influences the weight gain and feed efficiency, minimizing the occurrence of metabolic disorders in animals.

Currently, rotors with parallel longitudinal beaters, segmented beaters and longitudinal helical beaters are found on the market.

In this sense, through the patent documents US4,506,990 and US4,597,672, a rotor with several bars elongated in the longitudinal direction is known.

Another patent document, US4,741,625, teaches a rotor with longitudinal helical beaters.

During field experiments with “rotor-type” mixers, it was observed that the system did not work satisfactorily with certain types of components, sometimes forcing the mechanical components of the equipment too much, with successive breaks and others not producing a quality mixture.

A problem that was presented and which was difficult to solve was the inability of the rotor mixer to make a good mix when it was desired to mix grasses or "panicum" grass.

2/4 chopped in a diet where the main roughage is corn silage or sorghum silage. The chopped green product tended to concentrate in the center of the rotor of straight and parallel bars, making it difficult to mix with the other components. Then, after several alternative projects and many hours of testing, the solution to the problems presented by the rotor mixers was reached, with the application of the constructive arrangement just described.

Benefits

- The rotor mixes quickly and homogeneously any type of ingredients intended for use in total feed formulations, which are often residues from the agro-industry or the food industry.

- Reduction of energy and / or power consumption in equipment.

- The rotor has a helix shape, causing a much greater swirling of the ingredients in the mixing chamber.

- With the swirling provided by the rotor, the mixture is more homogeneous, in less time.

goal

The constructive arrangement was developed with the main purpose of improving the performance of the feed mixer, compared to what currently exists on the market, providing a better mixture more quickly and more homogeneously, as well as lower power consumption of the driving unit.

Brief description of the figures

Figure 1 shows the rotor in front view.

Figure 2 shows the rotor in side view.

Figure 3 illustrates the rotor in an isometric view, showing the exploded view of the beater assembly in said rotor.

3/4

Detailed description of the constructive arrangement

The rotor (1), as can be seen through figures 1 and 3, is built by six stars (2), each containing three arms (3). These stars (2) are arranged in pairs and each pair of stars forms a beater with three arms. These beaters are welded on a central axis (5), so as to form a helix along the length of the axis. Therein lies the great differential of this rotor, because with the formation of this propeller along the axis (5), the action of the beaters is intercalated, significantly reducing the power consumption of the driving unit, considerably reducing the mixing time of the recipe. Another differential is the scrapers (6) mounted on platters (4) on springs (7) at the ends of each arm of each beater (4), which provides considerable relief from the pressure exerted by the mixture against the equipment walls.

The arms (3) that form the star (2), as can be seen in figures 1, 2 and 3, are fixed to each other by screws (8) and mounted around the axis (5), forming a triangle between them with 60 ° internal angle.

The arms (3) have at their outer end two angles or plates (9) with a hole (13) that interconnect, by screws (10), said arms (3) to the crosspiece (4). Inside the arms (3) and between the plates or angles (9) the spring (7) is arranged, which is guided with the aid of a pin (11) welded on the crosspiece (4).

To maintain the position of the crosspiece (4) it receives a guide (12) that is welded on its face to slide it between the angle or plates (9).

To form the helical arrangement between the pairs of stars (2), one of the arms of the first pair of

4/4 stars mounted. The second pair of stars is mounted at 40 ° from the first reference arm already installed and so on.

The drive of this rotor follows the same path as the other rotors, being coupled in tips that are supported by self-compensating bearings fixed at the ends of the bucket. These tips are connected to the discharge thread tips by means of gears and chains that pass through tensioners and are connected to the input gear. This input gear is connected to a cardan shaft which, in turn, is connected to the power unit's power take-off.

The constructive arrangement of the rotor gives the equipment an unmatched mixing capacity, even for certain components considered difficult to mix, such as the cotton seed cone. In addition, the proposed rotor proved to be very efficient in mixing diets using chopped grasses, in any proportion together with corn or sorghum silage and other bran ingredients.

The rotor has a very simple and efficient design, as its propeller-shaped design causes a much greater swirling of the ingredients in the mixing chamber, compared to other existing rotors on the market. Due to this greater swirling of the components, the mixture is more homogeneous, in less time and with less power consumption.

With the rotor, a significant reduction, in the order of 30%, was possible in the mixing time of the ingredients, which gives a fantastic gain to cattle farmers in general.

Claims (4)

1 - CONSTRUCTIVE ARRANGEMENT APPLIED IN ROTOR FOR RATION MIXER, characterized by the rotor (1) being built by six stars (2), each containing three arms (3), 5 these stars (2) are arranged in pairs and each pair of stars forms a beater with three arms; these beaters are welded on a central axis (5), so as to form a helix along the length of the axis, mounted at 40 ° starting from the first reference arm already installed, and so on; the scrapers (6) mounted on 10 sleepers (4) on springs (7) at the ends of each arm of each beater (4); arms (3) are fixed to each other by screws (8) and mounted around the axis (5), forming between them a triangle with an internal angle of 60 °, presenting at its outer end two angles or plates (9) with hole (13) that interconnect, by screws 15 (10), said arms (3) the crosspiece (4), being that inside the arms (3) and between the plates or angles (9) the spring (7) is arranged, which is guided with the aid of a pin (11) welded on the crosspiece (4), whose crosspiece (4) has a guide (12) that is welded on its face to slide it between the angle or plates (9).