DE146745C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

With the help of the present device, a mixture of bodies of different sizes are separated according to several grain sizes, namely by means of two diagonally turning away from each other when viewed from above rollers set to one another. A known device of this type consists of two Rolls, which are inclined at the same angle to the horizontal plane, but in different

ίο yawing vertical planes are stored so that a wedge-shaped gap remains between the rollers. The one at the elevated end of the roller, d. i. at the narrowest point of the gap, abandoned body mass falls on one the respective body size corresponding gap cross-section through the rollers and is sorted by size. With this device, the adjustment must be made Rolls to each other for the purpose of changing the gap shape and the drive of the rollers, for. B. the gear transmission, respectively accordingly can be set. The present arrangement makes the latter superfluous, by the gap causing the sorting of gradually increasing width through it it is created that the rollers receive different inclinations in parallel vertical planes and furthermore the roll journals located at the inlet can be rotated about the drive shaft Store as well as the roller bowls located at the outlet in to the height sliding cross arms of the frame rotatable bearings * rotate. The on the Angular gears seated on the head journals therefore always remain in engagement with those on the drive shaft seated bevel gears with a change in the inclination of the rollers to change the shape of the gap.

The drawing represents in

Fig. I and 2 the side and front views, in

Fig. 3 shows the plan of the classifying device.

In the frame α α ¹ , the rollers bb ¹ are mounted with their head pins ο in the shells / rotatable about the shaft d. The pedestals o ^{1 of} the rollers rest in the bearings hh ^l , which are rotatable about the transverse arms ii ^{1, which are vertically displaceable on the frame.} The arms ii ¹ are fixed by screws i ^2. The rollers bb ¹ are set in rotation by the pulley ρ attached to the shaft d and the bevel gears ee ^1. The body quantity is added at m.

So that the gap p ² between the rollers bb ^l now has a gradually increasing cross-section, the foot bearing h of one roller b is adjusted vertically against the bearing h ^{1 of} its neighboring roller b ^l (see FIG. 1). In this roller position, the gap p ² at the feed point m completely or approximately retains the original cross-section, since the pivot point χ of the rollers bb ¹ in or both

is close to the geometric axis of the shaft d . At the base pin o ^{1 of} the rollers, the gap p ² becomes wider as a result of the vertical adjustment of the foot bearing h , namely corresponding to the length yy ^{l of} the connecting line ^{1 of} the base pin o ¹ (FIG. 2). Since in the vertical adjustment of the step bearing, the angle e h wheels move so as to roll around the "ring gear of the angle gears ^l e., They remain with the latter in any position of the rolls ¹ bb permanently engaged.

As in the known device, the batch parts fall through the gap p ² at a gap cross-section corresponding to the respective grain size.

Are the limits for the smallest grain size to be screened for different batches to be classified at different times, e.g. B. ι cm and 5 cm, then the gap p ² , as far as it does not have a cross-section of 5 cm width at the placement point m , would be worthless for the sorting work and experience overloading with batches, their harmful effect on the rollers and the work result is known. To prevent these disadvantages, the distance between the rollers bb 'mounted in parallel vertical planes has been made variable by the fact that the shells f of the head pin 0 together with the bevel gears e ^l on the shaft d and the bearings hh ^{1 of} the pedestals o ^{1 of} the rollers on the Cross arms ii ^{1 are} displaceable.

Claims (2)

Patent claims:, _ .., i. Classifying device, in which the material is separated into several grain sizes by two rollers that rotate away from each other and are inclined to one another, characterized in that the inclination of the "two rollers mounted next to one another in parallel vertical planes J. (bb ¹ ) to each other for the purpose of gradual enlargement of the gap between the same in the direction of travel of the goods by differently high support of the roll journals lying at the outlet. 2. Embodiment of the classifying device according to claim 1, characterized in that the roll journals (0) lying at the inlet in about the drive shaft (d) rotatable. Bearings (f) and the rolling journals lying at the outlet (0 ¹ J in height adjustable Cross arms (i V-) of the frame rotatable bearings rotate, for the purpose of being able to change the increase in size of the gap after the run-out without disengaging the drive. 1 sheet of drawings.