SU607732A1 - Chopping machine - Google Patents

Description

one

The invention relates to a device for grinding materials, in particular for processing wood into wood chips and using it in the pulp and paper industry.

A chipper is known, comprising a housing, a disk with shafts on which circular knives are fixed, a drive, a sharpening device and an axial movement mechanism of the knives l}

The disadvantage of such a machine is the large non-susceptible power costs for the friction of wood on knives and discs during cutting, and thus the power costs for driving the entire machine.

The aim of the invention is to reduce the power consumption of the chipper drive.

To do this, in the car round eccentric are fixed on the shafts.

FIG. 1 shows the chipping machine, general view; in fig. 2 - the same, from the side of loading of raw materials; on ({ig. 3 - section A-A on (Fig. 2; in Fig. 4 - section BB in Fig. 3j

in fig. 5 shows a section in FIG. 2} in FIG. 6 is a view along arrow G in FIG. five.

Claims (1)

The chipper machine contains a bed 1 with bearing supports 2 and 3, in which a shaft is mounted with a front disk 5 fixed on it and a cutting disk 6, and on the latter there are shafts 7 with circular knives 8 and planetary gear 9 that engage with a gear wheel 1O, which, in turn, is fixed on the inner wall of the casing 11. The machine has a loading cartridge 12 with a counter knife 13 and a sharpening device 14 located opposite the knives 8. The front disk 5 has through holes 15, in the end of which are circular knives 8, Dis Ki 5 and 6 are set apart from one another. Axial movement of the discs is carried out using an anvil 16, screws 17 and nuts 18. Support 3 turns on drives 5 and 6. Disc 6 has a half-ring slot 19 for passage of wood chips. ,: covers 23 and fasteners 24. Knives 8 are fixed on shafts 7 with eccentricity e using kaklaaok 25 and 26, fastened by fasteners 27. Keys 28 provide transmission of rotation to knots of fixing knives 8, the latter with screws 7 8 at an angle to the longitudinal axis of the machine. The gears 9 are fixed on the shafts 7 by means of the pins 29. In the case 11 there is a partition 30 for separating the chip exit zone 31 from the gear arrangement zone 32. Chipping machine works in the following way. The wood supplied to the cutting area through the chuck 12 is crushed into chips with round knives 8, then the chips through the holes 15 in the disk 5 and the slot 19 in the disk 6 falls into the area 31 of the chips outlet, from where it comes out. When the shaft 4 rotates with the disks 5 and 6 fixed on it, the blades 8 are rotated in the opposite direction with a speed depending on the ratio of the number of teeth of the fixed wheel 10 and the gears 9 of the axial movement mechanism of the blades. Sharpening of knives is carried out with the help of device 14. The adjustment of the outward movement of knives 8 above the plane of the disk 5 is carried out by moving it in the axial direction. The adjustment of the gap between the blades 8 and the counter-knife 13 is carried out by axial re-locking of the disks 5 and 6. The eccentricity of the blades 8 and the shafts 7 provides the oscillatory movement of the blades 8 in the direction of the cutting. The invention of the Chipping machine, comprising a housing, a disk with shafts on which circular knives are fastened, a drive, a sharpening device and an axial movement mechanism of knives, characterized in that, in order to reduce the power consumption of the chipper drive, the circular knives are fixed on the shafts eccentrically. Sources of information taken into consideration in the examination: 1. OSh patent No. 3266539, cl. 144-176, 1967. ./ 5-5 figm