RU68360U1 - MIXER-MIXER FOR PREPARING FOOD - Google Patents

Abstract

The invention relates to agricultural machinery and can be used to prepare animal feed for keeping them in farms and subsidiary plots. The technical result is the expansion of technological capabilities: the creation of a universal mechanism for high-quality grinding and mixing of feed components - obtaining particles of certain sizes and achieving a given uniformity of the resulting mixture of feed ingredients. The problem is solved in that in the grinder-mixer for the preparation of compound feed containing an electric drive, loading and unloading devices, a vertical cylindrical body with a working knife mounted on the drive shaft, the ends of which have a saber-shaped cutting edge, and a blowing knife installed under the working knife, on the drive shaft above the working knife there are two additional working knives having the same design, the ends of which are bent up and make an angle of 90 ° with a horizontal plane the plates of the additional working knives and are rotated relative to the vertical axis by the angle of the fold line, which makes an acute angle of 30-45 ° with the radial axis, the ends of the blades of the blade of the blade are bent 90 ° to the horizontal plane in one direction, while the edges of the blade of the blade are blades that have a one-sided bend at an angle of 12-15 °. Working knives are located crosswise with respect to the knife-sweeper.

Description

The utility model relates to agricultural engineering and can be used to prepare animal feed for keeping them in farms and subsidiary plots.

Known chopper for the preparation of feed mixtures (RF Patent No. 2053640 of 02.03.93, publ. 10.02.96, A01F 29/00), selected as a prototype as the closest to the claimed technical solution, containing a vertical cylindrical housing mounted on the drive shaft of the housing working a knife and a knife-sweeper, located crosswise with respect to the working knife, forming a grinding and mixing zone. A loading device is installed in the upper part of the casing, an unloading device on the side wall of the casing.

The disadvantage of this grinder is the limitation of the range of components of the crushed product - the purpose of the device is only for grinding coarse-grained feed (straw, root crops), as well as insufficient homogeneity of the finished product, which affects the quality of the resulting product, the use of the device only in the grinding mode.

The technical result is the expansion of technological capabilities: the creation of a universal mechanism for high-quality grinding and mixing of feed components - obtaining particles of certain sizes and achieving a given uniformity of the resulting mixture of feed ingredients.

The problem is solved in that in the grinder-mixer for the preparation of compound feed containing an electric drive, loading and

unloading device, a vertical cylindrical body with a working knife mounted on the drive shaft, the ends of which have a saber-shaped cutting edge, and a trowel knife installed under the working knife, two additional working knives having the same design, the ends of which are bent, are installed on the drive shaft above the working knife up and make an angle of 90 ° with the horizontal plane of the plate of the additional working knives and are rotated relative to the vertical axis by the angle of the bend line, which is about try 30-45 ° angle, the ends of the blade-metelnika plates bent at 90 ° relative to a horizontal plane in one direction, the knife-edge metelnika have blades which have unilateral limb at an angle of 12-15 °. Additional work knives are located crosswise with respect to the knife-sweeper. The electric drive contains a reversible electric motor with a frequency converter that allows you to change the rotation speed of the motor shaft in a wide range. The housing has removable decks and a removable cover on which the distribution cone is mounted. To clean metallomagnetic impurities, the grinder-mixer has a magnetic separator.

In Fig 1 schematically shows a chopper-mixer (General view); in Fig.2 - additional work knives (front and top view); in Fig 3. - section aa of the knife-sweeper.

The housing 1 is cylindrical, vertical. On its walls there are removable decks 2. The housing 1 has a removable cover 3, on which a distribution cone 4 is mounted with an angle at the apex of 90 °. The drive shaft 5 of the housing 1 is mounted on the shaft of a reversible electric motor 6, on which a working knife 8 is mounted, having a saber-shaped cutting edge and a knife-sweeper 7 mounted under the working knife 8 in the lower part of the housing 1. Two additional working knives 9 are installed above the working knife 8 , 10, which have the same design and are located on the drive shaft 5

crosswise with respect to the knife-sweeper 7. The ends of the additional working knives 9, 10 are bent upwards and make an angle of 90 ° with the horizontal plane of the plate of these knives and rotated relative to the vertical axis by the angle of the bend line which makes an acute angle of 30-45 ° with the radial axis.

The ends of the knife-broom 7 are bent 90 ° with respect to the horizontal plane in one direction, while the edges of the knife-broom 7 have blades that have a one-sided bend at an angle of 12-15 °. In the lower part of the housing 1 there is an unloading neck 11 with a valve 12. The loading device consists of a hopper 13, with a shutter 14 and a magnetic separator 15, there is also a bearing assembly 16 for rotation of the drive shaft 5, on which a knife-blade 7, working knives 8 are fixed and additional knives 9, 10. The chopper-mixer for the preparation of compound feed is placed on the frame 17 with a support stand.

An electric drive containing a reversible electric motor, powered by a 220 V single-phase alternating current mains, which is driven by a control panel having a frequency converter 18, which allows controlling the rotation speed of the motor shaft, drive shaft 5 over a wide range, on which the working knife 7, knife - sweeper 8 and additional working knives 9, 10.

The knife-sweeper 7 can be used to unload the resulting mixture from the body of the grinder-mixer during rotation of the drive shaft 5 in the opposite direction to the main rotational movement. Knives mounted on the shaft 5 are fixed rigidly. For cleaning metallomagnetic impurities, the grinder-mixer has a magnetic separator 15.

The grinder-mixer during grinding works as follows. In the hopper 13 serves the source material. The damper 14 controls the flow of material, the distribution cone 4, which provides the flow of material into the zone of active crushing, where

crushing with all knives. The resulting material is discharged through the discharge neck 11 with the valve open 12. The knife-sweeper 7 located in the lower part of the cylindrical chamber is such that when crushing it participates not only in grinding, but also creates vortex flows due to the presence at its edge of blades having one-side bending at an angle of 12-15 °, which carry part of the product up along the walls of the housing 1. The ends of the plates of the knife-broom 7 are bent at an angle of 90 ° to eliminate stagnant zones that arise during the operation of the grinder-mixer. The frequency of rotation of the drive shaft 5 during grinding is 2500-3200 rpm, when unloading the mixture 50-100 rpm

The grinder-mixer during mixing works as follows. Micro and macro additives are fed into the crushed material through the loading hopper 13, the shutter 14 and the distribution cone 4, the dosage of which is carried out by volumetric measures (not shown in the drawing). Upon receipt of additives in the housing 1, the upper additional working knife 10 distributes them evenly over the entire diameter. All four knives are involved in the mixing process, the mixing process will intensively take place in the lower part of the housing 1 during rotation of the blades of the blade-sweeper 7. The rotation speed of the drive shaft 5 during the mixing process is 200-300 rpm. In order for the mixing to take place more intensively, it is necessary to briefly increase the rotation speed of the shaft 5 to 1500-2000 per minute, while the material being mixed is lifted up along the walls of the housing 1. The resulting feed mixture is unloaded through the discharge neck 11, with the valve open 12. The rotation speed of the drive shaft 5 at unloading is 50-100 rpm.

The degree of grinding and mixing depends on the length of time of these processes.

Claims (5)

1. The chopper-mixer for the preparation of feed, containing an electric drive, loading and unloading devices, a vertical cylindrical body with a working knife mounted on the drive shaft, the ends of which have a saber-shaped cutting edge, and a trowel knife installed under the working knife, characterized in that on the drive the shaft above the working knife has two additional working knives having the same design, the ends of which are bent up and make an angle of 90 ° with the horizontal plane of the additional plate working knives and are rotated relative to the vertical axis by the angle of the fold line, which makes an acute angle of 30-45 ° with the radial axis, the ends of the blades of the blade of the blade are bent 90 ° with respect to the horizontal plane in one direction, while the edges of the blade of the blade are blades which have a one-sided bend at an angle of 12-15 °. 2. The chopper-mixer according to claim 1, characterized in that the additional working knives are located crosswise with respect to the knife-sweeper. 3. The chopper-mixer according to claim 1, characterized in that the electric drive contains a reversible electric motor with a frequency converter that allows you to change the rotation speed of the motor shaft in a wide range. 4. The chopper-mixer according to claim 1, characterized in that the housing has removable decks and a removable cover on which the distribution cone is mounted. 5. The chopper-mixer according to claim 1, characterized in that it has a magnetic separator.