SU44898A1 - Method of rolling wavy cylinders - Google Patents

Description

The present invention is referring to the method of hot rolling corrugated cylinders, in which hot cylindrical billet is passed between the undulating rolls. Until now, rolling was carried out between the outer surfaces of two wavy rolls, the proposed method means rolling between the outer surface of one roll and the inner surface of another roll of a larger diameter than, according to the author, an improvement in the quality of the corrugation is achieved.

The following is an exemplary embodiment of a mill for carrying out the method, where in FIG. 1 shows a side section of the mill, and FIG. 2-part limit switch.

Heated cylindrical billet 7 is put on the corrugated shaft 2, which rotates freely on the shaft 3, cooled from the inside and fixedly mounted in the bed 4. The corrugated drum 5, the protrusions of which fall into the valleys of the shaft 2, rotates through either side of the gearbox 6 from the electric motor 7 , as needed.

The shaft 15 of the drum 5 through the screw to 8 rotates the screw of wheel 9, tightly fixed on the stem of the screw 10, screwed into the lower end of the frame.

Two such stems x 10 at the ends of the shaft 15 hold the drum 5, the gear 6 and the motor 7, mounted in two pillows 16, 17, sliding in the frame as in guides. During rolling, the screw 10 is screwed in, and the wheel 5 with its weight and the action of the screw 10 presses against the workpiece of the cylinder 7, squeezing and leveling the profiles of the cones.

When the screw 10 (fig. 2) reaches the lowest position, it will enter the corresponding grooves of the nut-cartridge 77 with its fists / 2, press down the cylindrical body 13, which moves only vertically, held by the side lugs in the grooves of the frame, and will release the nut the cartridge 77 from the knuckles 14, after which the cartridge 77 will rotate with the screw 70 until the direction of rotation of the motor 7 is reversed, and then the whole mechanism in the pillow 77 will rise up. In the extreme upper position of the screw 10, the current is automatically turned off, the mill is stopped, the finished cylinder 7 is removed from the roll 2 n and is further processed.

The subject matter of the invention.

A method of rolling wavy cylinders using rolls with a wavy surface, characterized in that rolling is performed between the outer wavy surface of one roll and the inner wavy surface of another roll of a larger diameter.

Copyright testimony I. A. Davydov

No. 44898

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