SU1418036A1 - Chipping machine - Google Patents

Abstract

The invention relates to wood chopping equipment. The purpose of the invention is to improve the quality of the chips produced by stabilizing the material being processed. The chipper has a casing 1, a drive shaft 2 with a blade disc 3, and a cage 4 and a loading cartridge 5 with a bottom 6 mounted at an angle to the horizontal plane adjoin the casing. The bottom 6 has side edges 7 and an edge 8 adjacent to the casing, which is inclined to the horizontal plane at an angle oi. Boot sizes

Description

00

about with

about

FIG. 2

14

Ron satisfies the relation Li 2B (1 - sinVcos / j): sin 2oicos / 3, where L is the length of the loading cartridge; In - the width of the boot cartridge jod - angle mezkdu edge 8 and the horizontal plane; j3 is the angle between the bottom 6 and the horizontal plane, measured in the vertical plane perpendicular to the plane of the blade disk. The cross section of the cartridge 5 has dimensions that satisfy the C 2B ratio, where C is the diameter of the cross section of the cartridge, the projection of the diameter onto the plane of the blade disc and the radii drawn in

one

The invention relates to the forest industry, in particular to equipment for grinding wood

The purpose of the invention is to achieve the quality of the chips produced by stabilizing the processed material. la „

Fig „1 shows a chipper, longitudinal section; on figs 2 - section aa on fig, 1; on FIG 3 - machine, top view; Fig. 4 - section BB in Fig „1; Fig 5 is the bottom of the boot cartridge in orthogonal projections; in FIG. 2b - the bottom of the boot cartridge, axonometrics; Fig 7 - the bottom of the boot cartridge

The chipper contains a casing in the cavity of which a blade disk 3 is mounted on the drive shaft 2, the tangential chips of the discharge branch pipe 4 and the loading cartridge 5 with the bottom 6 mounted at an angle to the horizontal plane and having lateral edges 7 and a spindle adjoin the scoop 1. - an edge 8, which glows against the casing 1. The inclination of the bottom 6 is carried out so that it is in a vertical plane perpendicular to the plane of the knife disc 3, it forms an angle with the horizontal plane (the side edges 7 of the bottom 6 also form an angle 6 with the horizontal plane), ave adjacent to goat 1 edge 8 of bottom 6 forms

with horizontal plane

Boot cartridge 5 has a length L

036

its ends form an acute triangle. Slaves on the bottom 6 of the cartridge 5 under the action of the force of gravity are fed to the blade disk 3. At the same time, the slab is oriented with a plate in the direction of movement of the knife, i.e. approximately perpendicular to the cutting edge of 3 knives radially fixed on the disk. For this, it is necessary that the slab in the loading cartridge 5 be oriented along the diameter 9 of its cross section. At the same time, slab cutting is carried out under optimal conditions, which improves the quality of the produced chips „1 3 o ffl, 7 sludge,

and width b, its cross section has the shape of a trapezoid, the large diagonal 9 (diameter) of which has a length C, and the loading cartridge 5 is oriented so that regardless of where it adjoins to the casing 1 diameter 9 of its cross section with radii held at its ends acute triangle (Fig, 2, shows two variants of the abutment of the cartridge 5 to the casing 1).

Chipping machine works blindly

Sawmill waste in the form of slabs having an oblong cross-section along an inclined bottom 6 of the loading cartridge 5 is gravitationally fed to a rotating in the cavity of the casing 1 of the blade disc 3.

The quality of the process chips produced from the slab significantly depends on the orientation of its face relative to the cutting edge of the chipper knife. The quality of the chips is best when the slab is oriented in (or close to) the movement of the knife, Toya, roughly radially fixed to the cutting edge 3 knives. For this, it is necessary that the slab in the loading cartridge 5 be oriented along the diameter 9 of its cross section, which is done if C5 2B, as well as if the diameter 9 of the cross section of the cartridge 5 with radii drawn at its ends constitute an acute triangle, B In this case, cutting of the cross section of the loading cartridge 5, which is oriented by the diameter of the chuck 5, is carried out with radial knives under optimal conditions that promote the quality of the processed chips. The resulting chips through the tangential nozzle are removed from the cavity of the casing 1 and sent for further processing. After this, the cycle is repeated.

Claims (2)

Claims 1. A disastrous machine, comprising a casing with an adjacent snipe-nipple and a boot cartridge, the bottom of which and its edge adjacent to the casing are located at an angle of 20 to the horizontal plane, and a knife disk mounted inside the casing, characterized in that In order to improve the quality of the produced chips by stabilizing the material being processed, the loading cartridge is made with dimensions that satisfy the ratio 15 d 0 5 five 2B (1 - sinV-cos) sln o6cos / b. - where L is the length of the boot cartridge; B - the width of the boot cartridge; about - the angle between adjacent to the casing by the bottom edge of the loading cartridge and the horizontal plane; - the angle of inclination of the bottom of the loading cartridge to the horizontal plane, measured in the vertical plane perpendicular to the plane of the blade disk, 2. Machine pop ,, characterized in that the loading cartridge is made with a cross-section whose dimensions satisfy the ratio D52B, where D is the diameter, epr of the cross-section of the loading cartridge, with the projection of the latter onto the plane of the cutting disc and radii. Held at its ends, form an island; coal triangle. Feed.3 7ZHG1  ea FIG. five In b ,P but . oL FIG. 6