SU1323310A1 - Arrangement for pre-welding assembly of annular joints of cylindrical shells - Google Patents

Abstract

The invention relates to welding, in particular to the structures of devices for assembling for welding annular joints of cylindrical shells used in chemical and petroleum equipment. The aim of the invention is to increase productivity. The shell installed on the roller 22,. P house install the second shell, which must be docked to the first. The cart 1 is moved until the stop 17 is above the edge of the first shell. The stop 17 and traverse 13 take the first shell and the stop tS shift the second shell in the axial direction. Then the cart 1 is returned to its original position when the emphasis is placed over the junction of two shells. Since the front end of the bracket rests with the fingers of the sliders on the grooves of the bars 6, at the initial moment of the yoke 13 remains stationary, the bracket rotates about the axis 12, and its front end is lowered until the stop 17 is l. zhes to staps. All operations for lowering the staples and combining the edges are performed only when the pressure cylinder is working simultaneously, which improves performance. 4 il. with "with / / with y with // 7

Description

113

The invention relates to welding, in particular to the structures of a device for assembling for welding annular joints of cylindrical shells used in chemical and petroleum engineering.

The aim of the invention is to increase productivity by combining the operations of lowering the staples and leveling the edges of the shells.

FIG. 1 schematically shows the proposed device, side view; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a diagram of the device, side view; in fig. 4 shows a section B-B in FIG. 3

The device for assembling for welding annular butts of the shells is made in the form of a trolley 1, on which a bracket is hingedly fixed, consisting of two beams 2 and 3, connected by a rigid 4 and a pedestal 5. The bracket using straps 6 and levers 7, placed in pairs on both its sides, mounted on the trolley 1, the longitudinal movement of which is carried out from the drive 8, the strips 6 and the levers 7 are attached to the frame of the trolley 1 by means of supports 9 and 10 and hydraulic cylinders 11. The rear part of the bracket is connected to the levers 7 is hinged by means of the axis 12, and the front part - through the traverse 13 on the rod of the power cylinder 14, and the stepped rolling pins 15, connected with the cross beam 13, rests on the ends of the sliders 16 with fingers mounted in the grooves of the strips 6. The power cylinder 14 is rigidly fixed on the lower beam 2. On the upper beam 3 against the cross beam 13 a stop 17 is installed. To align the joints in the axial direction, there is a stop 18 connected via a rod 19 to a power cylinder 20. The pressure source for the device’s power cylinders is station 21.

The device works as follows.

The first shell is mounted on the roller bearings 22, next to the second shell is installed, which must be docked to the first one. The bracket with the help of hydraulic cylinders 11 through the strips 6 and the levers 7 raise so that the upper beam 3 of the bracket went inside the shell.

The carriage 1 is moved until the stop 17 is above the gentle first shell. With the help of the stop 17 and the traverse 13 of the power cylinder 14 for 10 .2

grabs the first ring and the stop 1 with the help of the power cylinder 20 shifts the second shell in the axial direction until it touches the first shell. Then, the power cylinders 14 and 20 are returned to the initial position, and the carriage 1 is moved back to the position at which the stop 17 is located above the joint of the two shells. In this position, the power cylinder 14 is turned on. Since the front end of the bracket is supported by the fingers of the sliders 16 on the grooves of the bars 6, at the initial moment of the yoke 13 remains stationary and the bracket begins to rotate around the axis 12, and its front end begins to descend until the stop 17 It does not lie at the joint of the assembled beach women. Then a clearance is selected. After receiving the support, the front end of the bracket stops falling, and the traverse 13 rises with the further operation of the power cylinder 14, and the stops of the stepped rollers 15 lose contact with the ends of the sliders 16, the gap b is selected, and the joint is clamped between the stop 17 and the traverse 13 , resulting in spelling of the edges of the shells.

The combined edges are connected by electric welding, after which the rod of the power cylinder 14 is returned to its original position. The shells are rotated at a certain angle on the rollers and the process is repeated.

Thus, after inserting the bracket into the shells, all operations for lowering the bracket and aligning the edges are performed only when the pressure cylinder is operating, which improves the performance of the device for assembling for welding annular joints of cylindrical shells.

Claims (1)

Invention Formula W troystvo for assembly welding ring joints cylindrical shells containing a mounted under the movable trolley carrying the pivotally mounted on neyskobu drive its rotation and lifting guide and clamp for aligning the edges of the shells, vtolnennym a cylinder with piston rod, and driven axial the movement of the shells, so that in order to increase productivity by 313233 combining the operations of lowering the clevis and leveling the edges of the shells, the pressure cylinder of the pressure cylinder for aligning the edges of the shells is equipped with a cross-member mounted on its end with a traverse rolling pin fixed to it five 33 104 plots of the sliders with sliders with the possibility of moving the sliders along the end sections of the rolling heads, the trolley is provided with 5 slots attached to it with grooves, while the fingers of the sliders are mounted with the possibility of movement along the slots of the slats. 0ag. rSa --ZT Gz 75 sree Editor E. Sligan Compiled by E. Kryukova Tehred And, Popovich Proofreader G. Reshetnik Order 2908/16 Circulation 975 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4