RU2301138C1 - Device for coupling and welding of the pipes - Google Patents

Abstract

FIELD: heavy engineering industry; devices for coupling and welding of the pipes.

SUBSTANCE: the invention is pertaining to the field of pipe production, in particular, to device for coupling and welding of the pipes of the big length. The device contains: the welding trolleys made with the capability of relocation on the rails using the rollers; the rollers supports for the tubular billet mounted on the trolleys; the welding assembly and the traction mounted below the level of the rails. The roller supports are made driving and turning. The trolleys, one of which is made driving and other - non-driving, are linked to each other by the indicated traction. For relocation on the rails each trolley is supplied with four pairs of the rollers in pairs linked among themselves. The driving trolley on the one hand is supplied with the guiding lateral rollers mounted on the two sides of the rail at each pair of the rollers. The axis of rotation of the guiding lateral rollers is perpendicular to the axis of rotation of the rollers. On the non-driving trolley on the one its side the rollers are made with the lateral flanges interacting with the rail. It allows to increase the device efficiency and to expand its production capabilities.

EFFECT: the invention ensures the increase efficiency of the device and expansion of its production capabilities.

2 cl, 5 dwg

Description

The invention relates to the field of pipe production, and more specifically to devices for assembling and welding pipes with a diameter of 530 mm to 1420 mm, and can most effectively be used in the manufacture of welded pipes of large lengths.

A device for assembling and welding pipes containing a roller conveyor that is moved along rails on rollers perpendicular to the axis of the roller conveyor is a trolley and welding unit (US Pat. No. 3201021, class 228-49, c. 04.04.62, publ. 17.08. 65 g.).

The pipe billet from the roller conveyor is transferred to a trolley that is moved across the axis of the roller conveyor and has two sections: one section is used to install the seam of the pipe billet along the axis of the welding unit, and in the second section, a oriented pipe billet is fed to the axis of the welding unit. The welded pipe is removed from the trolley by crane.

The disadvantage of this device is that the welded pipe is removed from the welding zone using a crane, and this reduces productivity.

The closest in technical essence is a device for assembling and welding pipes, containing welding carts with roller bearings for tube billet moving on rails on rollers and a welding unit (ed. Certificate of the USSR No. 1673357, V23K 37/053, decl. 09/27/89 g ., published on 08.30.91). One of the rails is made wedge-shaped and the rollers for it have a corresponding shape. Carts do not have a drive. Moving the bogies with the tube stock is carried out under the action of a stop mounted on the drive trolley of the welding unit and interacting with the end face of the shell.

A disadvantage of the known design of a device for assembling and welding pipes is that additional mechanisms are required to supply the tube billet to the axis of the welding unit and remove it from the welding zone, since the welding carts are non-driven. In addition, a certain orientation is required when installing trolleys on rails due to the fact that the rail track has different rails in form (one of the rails is made wedge-shaped guide). All this reduces the productivity of the welded pipe production process.

The objective of the present invention is to provide a device that can improve its performance and expand technological capabilities.

This object is achieved in that in a device for assembling and welding pipes containing welding trolleys configured to move on rails on rollers, roller bearings for tube billet mounted on trolleys, and a welding unit, according to the invention, it is additionally equipped with a rod mounted below level rails, roller bearings for the tube stock are driven and rotary, and the trolleys are equipped with lifting driven transport rollers, while the welding trolleys, one of which is equipped with with a moving drive, and the other is non-driven, interconnected by said traction, and for moving along rails each of them is equipped with four pairs of rollers pairwise interconnected, the drive trolley on one side is equipped with lateral guides installed on both sides of the rail on each pair of rollers rollers, the axis of rotation of which is perpendicular to the axis of rotation of the rollers. On a non-driven trolley on one side, the rollers are made with side flanges interacting with the rail.

Such a constructive implementation of the device for the assembly and welding of pipes allows to increase its productivity by providing the possibility of both lateral and axial feeding and delivery of the pipe billet and welded pipe due to the fact that two bogies are set apart from each other by a link, installed below the rail level and equipped with roller bearings and lifting transport rollers, can receive the tube stock from the side of the transfer carriage carrying the blank, the axis of which is parallel to the axis of the pile internal trolley, or supplied by the welding carriage axis. Moreover, crane operations and other transmission mechanisms are not required. In addition, rails of a special shape are not required, since the tipping of the trolley is excluded by the guide side rollers mounted on both sides of the rail on the drive trolley and the side flanges of the rollers of the non-drive trolley. The presence of four pairs of rollers on each trolley ensures a smooth transition of the rail joints.

To explain the invention, a specific embodiment of the invention is provided below with reference to the accompanying drawings, in which:

Figure 1 shows a device for assembly and welding of pipes, General view;

figure 2 is the same, a top view;

figure 3 is a view a in figure 1;

figure 4 is a section bB in figure 2;

figure 5 - section bb in figure 2.

A device for assembly and welding of longitudinal pipes consists of a welding carriage 2 moved along rails 1 and a welding unit 3.

Welding trolley 2 consists of a drive trolley 4 and a non-drive trolley 5, each of which has four pairs of rollers 6 to ensure the passage of gaps in the rails 1. Trolleys 4 and 5 are interconnected by a rod 7 mounted below the level of rail 1. Trolleys 4 and 5 are installed from each other at a distance that ensures the passage of the transfer trolley (not shown) across the axis of the welding trolley 2.

The trolley 4 is equipped with a drive 8 and installed on both sides of the rail 1 at each pair of rollers guide side rollers 9, the axis of rotation of which is perpendicular to the axis of rotation of the rollers 6.

On a non-driven carriage 5, on one side of the roller 6 are made with side flanges 10, interacting with the rail 1.

A pair of drive rotary roller bearings 11 are mounted on each trolley 4 and 5 for mounting a longitudinal welded pipe billet 12 with a diameter of, for example, 530 mm or 1420 mm in the “welded” position and a lifting driven transport roller 13 for receiving a longitudinal welded pipe from the live roll.

In an axial task, a longitudinal seam pipe billet 12 is received from the roller conveyor by transport rollers 13 along the axial line of the welding trolley 2 and lowered onto the rotary drive roller bearings 11. For a lateral task, a longitudinal seam tube billet 12 with a transfer carriage (not shown) is installed along the axial line of the welding trolley 2 and lowered on the same rotary drive roller bearings 11. Using the rotary drive roller bearings 11, the pipe billet 12 is set to the “weld” position. In the process of welding a longitudinal seam, the pipe billet 12 is moved by the transport rollers 13 of the welding trolley 2 relative to the welding unit 3 at a technological speed.

The proposed device for the assembly and welding of pipes, in comparison with the known, allows to increase its productivity by expanding technological capabilities.

Claims (2)

1. A device for assembling and welding pipes, containing welding carts made to move along rails on rollers, roller bearings for tube billet mounted on carts, and a welding unit, characterized in that it is additionally equipped with a rod mounted below the level of the rails, the roller bearings for the tubular billet are made drive and rotary, and the trolleys are equipped with lifting drive transport rollers, while the welding trolleys, one of which is equipped with a displacement drive, and the other is made all-wheel drive, connected by the aforementioned link, and for moving along the rails, each of them is equipped with four pairs of rollers pairwise connected to each other, the drive trolley on one side is equipped with side rollers mounted on both sides of the rail on each pair of rollers, the axis of rotation of which is perpendicular axis of rotation of the rollers. 2. The device according to claim 1, characterized in that on the non-driven trolley on one side the rollers are made with side flanges interacting with the rail.

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