SU1676653A1 - Apparatus for grinding metal chip - Google Patents

Abstract

The invention relates to a device for grinding metal chips, the purpose of which is to increase reliability of operation. The device includes a case i with plates 6 fixed on it with knives 5, spring-loaded damper 7, stops 8 and 9, surfaces 10 and 11 of which, respectively, mate with surfaces 12 and 13 of the plates and the damper. The sectional placement of the knives on the spring-loaded plates allows the body to be removed from the zone where it falls. The knives are retracted uniformly without distortions, as they are mounted on plates provided with a supporting surface, which interacts with the mating surface of additional stops. The execution of the rotary valve provides for the return of the non-crushed chips to the crushing zone when it is rotated in the direction opposite to the placement of the shaft with the blades. This ensures non-stop operation of the device, which increases the reliability of its operation. 2 or

Description

The invention relates to a device for grinding metal chips and can be used in mechanical engineering, metallurgy and other industries.

The goal is to increase the reliability of work.

FIG. 1 shows a general view of the device in section; in fig. 2 is a view A of FIG. one.

A device for grinding metal shavings comprises a housing 1, on the drive shaft 2 of which a rotor 3 with knives 4 is fixed. Between the knives 4 of the rotor 3, knives 5 are mounted, sectionally fixed on plates 6, which are hingedly mounted on the housing 1. On the case are mounted a spring-loaded valve 7 and stops 8 and 9, the surfaces TO and 11 of which mate with the corresponding surfaces 12 and 13

plates and dampers. An unloading device 14 is mounted under the rotor 3. The plates b and the valve 7 are pressed in, respectively, by spring-loaded rods 15 and 16. In the case, the hopper 17 is mounted.

A device for grinding metal chips works as follows.

The metal shavings through the loading hopper 17 enter the casing 1. The flap 7 prevents ingressible chips from entering the unloading device 14. The crushed chips spill into the container through the unloading device 14 and are carried away by a special conveyor (not shown).

If an uncrushable body enters the work zone with skin 4 and 5, due to

Vi o

about

s

neck resistance, the latter begin to rotate with plates 6 counterclockwise. The springs of the rods 15 are compressed, increasing the gap between the knives 4 and 5 until the indestructible body falls on the discharge device 14. Sectional fastening of the knives 5 on the plates allows rotation of the slab or a pair of plates 6, on the knives 5 of which there is an indestructible body , the remaining sections of the knives continue to grind chips, which reduces the dynamic effect on the rotor and increases the reliability of work.

The supporting surfaces 12 of the plates 6, interacting with the surface 10, prevent the knives 5 from tilting with respect to the knives 4 and their breakage. Unbroken chips, spilling into the gap when turning the knives 5, are carried away with its accumulation by knives 4, and, turning the shutter 7 counterclockwise, are fed into the zone above the crushing mechanism and are crushed again, which also increases reliability

Claims (1)

Invention Formula A device for grinding metal chips, consisting of a housing inside which a rotor with knives is located, a mechanism for preventing seizure of the rotor, made in the form of sectional a plate with knives fixed on them, a mechanism for returning to the initial position, made in the form of a spring-loaded rod, and a hopper, characterized in that, in order to increase the reliability of operation, The device is equipped with a spring-loaded damper pivotally mounted on the housing under the hopper, and on the housing there are mounted stops located respectively above the damper and under sectional plates, with the surface of the valve, sectional plates and stops made mated. fig 2