SU995861A1 - Toothed chip breaker roller - Google Patents

Description

(5A) ROUND SHAPED TRIM

one

The invention relates to chips crushing devices and can be used in toothed chip breakers for processing metal chips. ,

. A crusher roll is known, comprising a roll frame and a series of sprockets, the peripheral surface of the roll core being designed as a toothed surface to which the sprockets are bolted.

However, the known roll does not exclude the winding of chips on its body between the sprockets.

Closest to the present invention there is a roller chip breaker j comprising a shaft and sprockets mounted on its length with cutting edges of the teeth 2.

However, during the operation of the chip crusher, the chips wound on the swath are strongly compacted and can only be removed with a gas cutter, often the chips are removed together with the shaft, which is associated with a long downtime of the crusher. This significantly reduces the productivity of the chip breaker and requires frequent replacement of the rolls. In addition, chips wound on the roll increases the resistance to rotation of the roll and consequently increases the power consumption required for crushing.

to shavings.

The purpose of the invention is to increase reliability and productivity by eliminating the winding of chips on a swath. . .

15

The goal is achieved by the fact that a roll of a toothed chip breaker containing a shaft and is fixed. prisoners of sprockets along its length with cutting edges of teeth, between stars, their split rings are rotatably mounted with respect to their split; moreover, the inner surfaces of the latter are made with protrusions

FIG. 1 shows a swath, longitudinal section; in fig. 2 shows section A-A in FIG. one .

The roll of the toothed chip crusher is mounted on the rolling bearings of the housing 1 and has a shaft 2 on which detachable sprockets with cutting edges of the teeth 3 are fixed. The sprockets are kept from spun relative to the shaft by dowels 4, and from axial displacement by spacing sleeves 5 and fixing screws-. 6. Between fixed sprockets on their hubs. Rings 7 are installed. For convenience of mounting, the rings are made of two half rings, bolted 8, and can be freely rotated relative to the shaft and sprockets. The inner surface of the rings is provided with protrusions 9 which are intended to limit the axial movement of the rings 7 and to accommodate the bolts 8 which fasten these half rings.

8, during the operation of the chip breaker, the rings 7 protect the shaft 2 and the hubs of the sprockets with the cutting edges of the teeth 3 from winding the chips on them. If the chip is pressed against the ring 7 at the moment of crushing, then the chips are rotated relative to shaft 2, remaining stationary relative to the chip breaker body 1.

On fixed rings 7, chips are applied. j

Thus, the roll of the toothed chip breaker provides increased reliability and productivity, energy savings and reduced labor intensity of repair work, which can provide a significant economic effect.

invention formula

A roller chip breaker comprising a shaft and sprockets fixed along its length with cutting edges of teeth, characterized in that, in order to increase reliability and productivity by eliminating chip winding on the roll, the sprockets are rotatably mounted relative to their split rings, the inner surfaces of the latter performed with protrusions.

Sources of information taken into account in the examination

1. USSR author's certificate f 386670 cl. In 02 cV30, 1971.

2.Makarov V.I., Sokolov V.B. Machines for crushing and screening materials. L., Mechanical Engineering, 1966, p. 96 (prototype).

fig

Claims (1)

Claim A gear chip breaker roller 15 comprising a shaft and sprockets fixed to its length with cutting tooth edges, characterized in that, in order to increase reliability and productivity by excluding the chip winding on the roller, between the sprockets they can be rotated relative to their split rings, with internal the surfaces of the latter are made 25 with protrusions.