METHOD TO MANUFACTURE HALF-BLOCK OF CYLINDRICAL INSERT FOR VESSEL WITH DOUBLE HULL AND ROTARY DEVICE FOR ITS REALISATION Russian patent published in 2012 - IPC B63B9/00 B63B9/06 B23K37/04 

FIELD: construction.

SUBSTANCE: in the proposed method a half-block of a cylindrical insert for a vessel with a double hull is formed on receiving platforms of a rotary device making it possible to weld all welding seams in a technologically convenient lower position, for this purpose operations of device rotation are repeated technologically for a required number of times. In the rotary device used to realise the method there is a casing, the external surface of which is arranged in the form of a cylinder with a horizontally arranged axis, along which in the body there is a prismatic groove forming two adjacent congruous planes on the inner surface arranged at the angle of 90° to each other and arranged in the form of platforms. On these platforms there are fixators for fixation of planar sections, and also on them there are rail tracks installed along the casing axis coupled with workshop rail tracks. The device casing rests on rollers fixed on axes in rotary shells installed on the foundation. Besides, the device is added with the third congruous plane arranged at the angle 90° to the second plane and parallel to the first one, and besides, axes of all or some of the specified rollers are connected by a drive with an electric motor.

EFFECT: reduction of production areas, labour intensiveness and reduced duration of a technological process, possibility to manufacture finished half-blocks at one production position with a different angle of a transverse inclination of a deck.

4 cl, 4 dwg