SU112324A1 - Stepped roller for cross rolling stepped rollers - Google Patents

Description

The invention is a stepped roller assembled from several rings of different diameters, found on a central bushing, and intended for cross-section rolling of stepped rollers.

The design of the described roll is new and technically useful, as it eliminates the inconsistency of the peripheral rolling speeds at different stages of the rolled rollers by simple means.

FIG. 1 shows a stepped roller for rolling a roller; in fig. 2 - rolled roller.

The roller (fig. 1) assembled on the central bushing 1 consists of rings 2 and 5 assembled and put on it with diameters 2 and 5 set. Rings 2 and 4, having a large diameter, are rigidly fixed to the sleeve. The ring 3 of a smaller diameter has a movable fit, which ensures its turning with respect to the drive rings 2 and - during the rolling process. The ring 3 is a follower, friction driven in rotation by rolling roll 5 5 Fig. 2). By twisting, the difference in the circumferential rolling speeds at different steps of the rolling roller with steps of different diameters is compensated.

With a larger number of stages, the number of co. Cu. the driving rings of the roll are rigidly set rings of the largest diameter, while all the other rings have a free fit, are entrained in rotation by friction on the rolled roller and turn, compensating for the difference in peripheral speeds. In accordance with the placement of the stepped rings of the roll, its central sleeve / is stepped.

Rolling can be performed both in the cold and in the hot state of the roller. Small rollers can be rolled on lathe or thread rolling machines, larger - on rolling machines.

Subject invention

Claims (2)

1. A stepped roller for cross rolling of stepped rollers, characterized in that, in order to compensate for the difference E of the peripheral rolling speeds at different stages of the rolled roller with different diameters, the roller is made of rings assembled on a central bushings. one of which, with a large diameter, is rigidly fixed to the sleeve, while the others have movable landings, which ensure their relative turning during the rolling process. 2. A stepped roll according to Claim 1, characterized in that, in accordance with the placement of the stepped roll rings, the central sleeve of the roll is stepped.