RU95583U1 - TAPE FOR ASSEMBLY UNDER WELDING OF PIPE Billets - Google Patents

Abstract

 1. A tilter for assembly for welding pipe billets, characterized in that it is a structure consisting of a welded frame 1, to which two roller bearings with a variable center distance are mounted, one of them is driven 2, and the second is idle 3, roller bearings are installed in bearings rolling elements 4, mounted on swinging supports-brackets 5, welded to the rotation shafts 6 and 7, the brackets are equipped with stop plates that fix the set center distance, the rotation shafts are interconnected via leverage to them with independent rods of a two-cavity pneumatic cylinder 8, located between the stops 9 of the frame 1 with the possibility of free movement along its longitudinal axis and vertically, on the axis of one shaft of rotation, a parasitic gear 10 is installed, which engages with the gear 11 sitting on the gearbox shaft, and with a gear sitting on the axis of the drive roller bearing 12, the rotation shafts rotate in the sliding bearings, the drive consists of an electric motor 13 and a gearbox 14 with a gear ratio t = 192.65, the shafts of the gearbox motor are connected in finger-and-sleeve clutch 15, an air line is connected to the tilter to ensure the normal operation of the pneumatic cylinder, which includes a compressed air purifier and an air distributor, and a compressed air purifier is manufactured and installed if necessary. ! 2. The tilter for assembly for welding pipe blanks according to claim 1, characterized in that the roller bearings 2 and 3 can occupy two positions for different diameters of the shells, which greatly expands the range of application of the tilter. ! 3. Tilter for with

Description

The utility model relates to the production of cylindrical structures, namely, to designs of devices for assembly for welding pipe blanks of two or more half cylinders.

The tilter is a structure consisting of a welded frame 1 to which two roller bearings with a variable center distance are mounted. One of them is drive 2, and the second is idle 3. Roller bearings are installed in rolling bearings 4, mounted on swing bearings, brackets 5, welded to the rotation shafts 6 and 7. The brackets are equipped with stop plates that fix the set center distance. The rotation shafts are interconnected through levers welded to them by the autonomous rods of a two-cavity pneumatic cylinder 8 located between the stops 9 of the frame I with the possibility of free movement along its longitudinal axis and vertically. On the axis of one rotation shaft, a parasitic gear 10 is installed that engages with gear II sitting on the gearbox shaft and with gear sitting on the axis of the drive roller bearing 12. The rotation shafts rotate in sliding bearings. The drive consists of an electric motor 13 and a gearbox 14, with a gear ratio t = 192.65, designed and manufactured on its own. The shafts of the gearbox electric motor are connected by a sleeve-finger clutch 15. An air line is connected to the tilter to ensure the normal operation of the pneumatic cylinder, which includes a compressed air purification device and an air distributor. A device for cleaning compressed air is manufactured and installed if necessary.

The tilter works as follows.

By turning the handle of the air distributor, compressed air is supplied to the corresponding cavity of the pneumatic cylinder, which sets the roller bearings in the set position, put the handle in the neutral position i.e. turn off the pneumatic system. Roller bearings 2 and 3 can occupy two positions for different diameters of the shells, which greatly expands the range of application of the tilter. The shells of the apparatus (vessel) with a lifting means are fed and installed on the roller support of the tilter. They include a pneumatic cylinder 17 for compression of the installed shells on the rollers, tack (assembly) of two shells and more in series, include a drive of roller bearings to rotate the shells in a position convenient for welding. They turn off the drive and carry out welding work. After the welding operation, the shell is transported to the next operation and the cycle is repeated.

Known: a device for assembling for welding pipe billets for two half cylinders, an assembly-welding rotator-tilter, an installation for welding cylindrical structures from shells (invention patents RU No. 2323284, 2210476, 46215)

A device for assembling for welding pipe billets from two half cylinders is known (patent for the invention RU No. 2321484), relates to the production of pipes, namely, structures of devices for assembly for welding pipe billets from two half cylinders. The device comprises a chain pusher, a bed on which a fixed knife and rotary crescent levers are fixed. The levers are equipped with guide rollers, pressing mechanisms and a fixed stop fixed at one end of each crescent lever. A knife is mounted on the trolley of the chain pusher. The fixed knife is made in the form of arched side guides with grooves for welding, in which rollers are installed with the same pitch in a checkerboard pattern, forming two parallel surfaces equidistant from the device axis on the side surfaces.

The device has a significant disadvantage of large linear dimensions. Large areas are necessary for placing equipment in the workshop, and is not applicable for our production.

The assembly-welding rotator-tilter is also known (patent for the invention RU No. 2210476), relates to welding equipment, in particular to devices for assembling and welding annular and other seams. The invention is aimed at reducing the complexity of the assembly-welding process, increasing the productivity of the assembly-welding rotator-tilter, expanding the range of processed products. The front and rear headstock with bearings in which the spindles are mounted are mounted on the bed. On the bed and spindles there are devices for orienting parts of the product relative to each other. The bearings are made in the form of orienting bushings with open longitudinal grooves. Pins are inserted into the grooves with the possibility of release, mounted in the spindles perpendicular to their axes.

The rotator-tilter has the disadvantage of considerable costs for the preparation of production facilities (a large pit is required when working with large workpieces) and the manufacture of very massive parts of the rotator-tilter for the manufacture of assemblies of large sizes.

A known installation for the assembly of cylindrical structures from shells (patent for invention RU No. 46215), relates to the field of welding, in particular to devices for joining annular edges (ring seams) of shells during assembly of sections of cylindrical bodies of apparatuses and vessels. Compared with analogues, the claimed installation provides increased productivity and expansion of technological capabilities.

The installation comprises a faceplate with a support-centering mechanism, a protective gas supply system and a welding machine. It is distinguished by the simplicity of design and adjustment when welding shells of different diameters.

A plasma welding machine is used with an argon shielding gas blowing from the inside of the welded shells. When installing an additional stand with a grinding head, it is possible to process the edges before welding. In addition, the installation (when changing the nozzle with channels for supplying a protective gas) allows welding of longitudinal seams of the devices.

Claims (3)

1. A tilter for assembly for welding pipe billets, characterized in that it is a structure consisting of a welded frame 1, to which two roller bearings with a variable center distance are mounted, one of them is driven 2, and the second is idle 3, roller bearings are installed in bearings rolling elements 4, mounted on swinging supports-brackets 5, welded to the rotation shafts 6 and 7, the brackets are equipped with stop plates that fix the set center distance, the rotation shafts are interconnected via leverage to them with independent rods of a two-cavity pneumatic cylinder 8, located between the stops 9 of the frame 1 with the possibility of free movement along its longitudinal axis and vertically, on the axis of one shaft of rotation, a parasitic gear 10 is installed, which engages with the gear 11 sitting on the gearbox shaft, and with a gear sitting on the axis of the drive roller bearing 12, the rotation shafts rotate in the sliding bearings, the drive consists of an electric motor 13 and a gearbox 14 with a gear ratio t = 192.65, the shafts of the gearbox motor are connected in finger-and-sleeve clutch 15, an air line is connected to the tilter to ensure the normal operation of the pneumatic cylinder, which includes a compressed air purifier and an air distributor, and a compressed air purifier is manufactured and installed if necessary. 2. The tilter for assembly for welding pipe blanks according to claim 1, characterized in that the roller bearings 2 and 3 can occupy two positions for different diameters of the shells, which greatly expands the range of application of the tilter. 3. Tilter for assembly for welding pipe blanks according to claim 1, characterized in that the pneumatic cylinder 17 allows you to press the installed two or more shells on the rollers, after tacking (assembly) of shells, they are welded.