RU2441704C1 - Cam breaking plant - Google Patents

Abstract

FIELD: breaking of materials. ^ SUBSTANCE: invention refers to devices of fine breaking of different materials and can be used in many industries. The breaking machine includes loading bin, discharge doors, body. The body includes shafts with hub discs installed in the bearing assembly. Face surface of discs are equipped with working elements of the cam form. The device has additional shaft one end of which has pinion carrier. The pinions are equipped with working elements in the cam form analogous to working elements of the hub discs which interact with them. ^ EFFECT: increase of breaking zones and improvement of broken material mixing. ^ 1 dwg, 2 dwg

Description

The invention relates to devices for fine grinding of various materials and can be used in many industries.

A device for crushing waste sheet material / ed. testimonial. USSR No. 1258471, MKI V02C 4/00, 09/23/86, / containing the upper and lower drive cylindrical gears, the troughs of which are provided with grooves, and a waste disposal mechanism including a nozzle connected to a source of compressed air. The mechanism is located near the interaction zone of gears, the inner surface of which is hollow, while the grooves are made through, and the teeth of one of the gears are made with a triangular profile with an angle at the apex of 70-80 °.

Known disintegrator / US Pat. RF №2062651, IPC В02С 7/02, В02С 13/22, 06/27/96, / containing a housing with covers and windows for loading and removing material, located opposite working bodies with teeth on the end surface, one of which is made leading. The disintegrator is equipped with an annular reflector and a baffle, in the internal volume of which there are working bodies forming gears, the baffle divides the body into central and peripheral chambers, and channels for supplying a gaseous or liquid agent to the central chamber are made on the inner surface of the baffle.

Known disintegrator / US Pat. RF №2008091, IPC В02С 13/22, 02/28/94, / containing a housing in which grinding elements are located in the form of end wheels installed in each other. The disintegrator is equipped with at least one wheel of a smaller diameter located in a wheel of a larger diameter with an individual electric motor. All electric motors have the ability to alternate or simultaneous operation.

A cam mill / US Pat is selected for the prototype. RF №2242285, IPC V02C 13/20, 12/20/04, / containing a housing with working elements installed in it in the form of cams, a loading hopper and an unloading device, while the cams are mounted on the end surfaces of the disks along concentric circles with the possibility of interaction with each other on the other hand, each of the cams is made in the form of a truncated pyramid, and in sections parallel to the disks have a trapezoidal shape, while both disks are rotatably mounted in the casing, and inclined slots with angles are made in the lower part of the casing th tilt one of the walls in the direction opposite to the rotation of the discs.

The design of the device selected for the prototype allows you to grind materials with a large deformation ability, in particular: leather, rubber, foam, various elastomers, etc.

The disadvantages of the prototype are: a small volume of the working chamber; a small number of grinding zones; poor mixing of the crushed material.

The objective of the invention are: to increase the volume of the working chamber; increasing the number of grinding zones and improving mixing of the crushed material through the use of a planetary kinematic scheme.

Figure 1 shows a diagram of a cam mill, adopted as a prototype. Figure 2 shows a schematic diagram of the described invention.

The essence of the invention lies in the fact that the proposed device for grinding, containing a loading hopper, unloading hatches, a housing in which shafts are mounted in bearing bearings with bearing discs located on them, the end surfaces of which are equipped with working elements in the form of cams, are additionally equipped with a shaft, with a carrier located on it with satellites having similar working elements interacting with working elements located on bearing disks.

This design of the device allows you to increase the volume of the working chamber, improve mixing of the crushed material and increase the number of grinding zones through the use of a planetary kinematic scheme.

The number of satellites is advisable to use two or more. The volume of the working chamber and the number of grinding zones directly depend on the number of satellites.

The cam grinder (figure 2) contains a housing 1 in which shafts 4 and 5 are installed in the bearing supports 2 and 3 with bearing discs 6 and 7 located on them, the end surfaces of which are equipped with working elements in the form of cams 8 and 9. Inside the hollow shaft 4, a shaft 11 is installed in the bearing supports 10. A carrier 12 is installed on the left side of the shaft 11, satellites 15 are mounted on the axles 13 of which are mounted on the bearings 14. The satellites 15 are equipped with working elements 16 and 17, interacting with similar working elements 8 and 9. The chopper equipped with dressing hopper 18, unloading hatches 19. The chopper is driven by a motor 20 via a coupling 21.

The chopper works as follows.

The crushed material is fed from the loading hopper 18 into the working space of the device, limited by disks 6, 7 and the carrier 12 with satellites 15 located on it. When the carrier 12 is rotated, the satellite 15 is rotated, and the cams 16 and 17 located on them interact with the cams 8 and 9, located on the disks 6 and 7, capture the supplied material and grind it.

Due to the use of the planetary kinematic scheme during rotation of the carrier 12, the satellites 15, rotating around their axes 13, run around the disks 6 and 7, bringing them into rotation, thereby ensuring the best mixing of all the crushed material.

Moreover, due to the design features of the device described above, the material falling between the interacting cams is affected by shear compression and shear deformations, which contribute to the quick and fine grinding of the material. The grinding of material occurs mainly between the side surfaces of the cams, as well as at the junction of the cams and the housing. The crushed material is discharged through the discharge hatches 19.

The advantages of the proposed device are:

1) wide technological capabilities due to the fact that it provides grinding of various materials: crushed stone, slag, minerals, grain, plastics, rubber waste, leather, wood, etc., while the size of the fractions of the crushed product is 20-150 microns;

2) an increase in the volume of the working chamber, an increase in the number of grinding zones and improved mixing of the crushed material through the use of a planetary kinematic scheme.

Claims (1)

A cam shredder containing a loading hopper, discharge hatches, a housing in which shafts are mounted in bearing bearings with bearing discs located on them, the end surfaces of which are equipped with cam working elements, characterized in that it is additionally equipped with a shaft, at one end of which is located drove with satellites, which are equipped with working elements in the form of cams, similar to the working elements on the carrier disks and interacting with them.

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