CN202762727U

CN202762727U - Longitudinal submerged arc welding steel pipe sizing mill

Info

Publication number: CN202762727U
Application number: CN201220480530.7U
Authority: CN
Inventors: 张峰
Original assignee: LIAONING HONGXIANG PIPE TECHNOLOGY Co Ltd
Current assignee: LIAONING HONGXIANG PIPE TECHNOLOGY Co Ltd
Priority date: 2012-09-20
Filing date: 2012-09-20
Publication date: 2013-03-06
Anticipated expiration: 2022-09-20

Abstract

The utility model relates to a longitudinal submerged arc welding steel pipe sizing mill. The longitudinal submerged arc welding steel pipe sizing mill is characterized in that a base is an independent sizing rack, a support base is arranged on the base, N left side rollers and N right side rollers are arranged on the support base, and N lower rollers and N upper roller groups are arranged between the N left side rollers and the N right side rollers. Roller grooves are arranged on the vertical direction of rollers of the N left side rollers, the N lower roller, the N right side rollers and the N upper roller groups, the widths and the depths of the roller grooves are 1-150 millimeters and 0-50 millimeters respectively, and submerged arc welding penetrates through the grooves in case of sizing. The sizing of longitudinal submerged arc welding with phi of 219-711 millimeters and wall thickness of 6-25.4 millimeters can be conducted. The diameter and the wall thickness of a steel pipe after sizing are even, and residual stress is small.

Description

A kind of longitudinal submerged arc welded pipe sizing mill

Technical field

The utility model relates to a kind of installation for welding, particularly a kind of longitudinal submerged arc welded pipe sizing mill.

Background technology

At present, domestic longitudinal submerged arc welded pipe adopts full body expanding technology that steel pipe is carried out the sizing aligning, and such as the steel pipe's production of UOE, JCOE forming method, this process equipment cost is high, production efficiency is lower, does not satisfy online straight-line joint submerged arc welding tube quantity-produced needs.

Summary of the invention

The utility model has overcome the defective of above-mentioned existence, and purpose is for solving longitudinal submerged arc welded pipe with the technique of sizing, enhance productivity, a kind of longitudinal submerged arc welded pipe sizing mill being provided.

The utility model longitudinal submerged arc welded pipe sizing mill content Description:

The utility model longitudinal submerged arc welded pipe sizing mill, it is characterized in that: support is reducing mill stand independently, be provided with bearing at support, N passage left side roll and N passage right side roll are arranged on the bearing, between N passage left side roll and N passage right side roll, be provided with N passage bottom roll and N passage topping roll group, roll vertical direction at N passage left side roll, N passage bottom roll, N passage right side roll and N passage topping roll is provided with wide 1～150 ㎜, the roll groove of dark 0～50 ㎜ passes through in groove during the submerged arc weld sizing.

The utility model longitudinal submerged arc welded pipe sizing mill can carry out sizing to Φ 219 ㎜～Φ 711 ㎜, the submerged-arc welding of wall thickness 6-25.4 ㎜ vertical masonry joint, and the steel pipe caliber behind the sizing, wall thickness are even, and residual stress is little.

Description of drawings

Fig. 1 is longitudinal submerged arc welded pipe sizing mill structural representation;

Among the figure: the 1st, support, the 2nd, N passage left side roll, the 3rd, roll groove, the 4th, N passage bottom roll, the 5th, bearing, the 6th, N passage right side roll, the 7th, epicyclic gearbox, the 8th, reductor, the 9th, lift, the 10th, crossbeam, the 11st, N passage topping roll.

The specific embodiment

The utility model longitudinal submerged arc welded pipe sizing mill is achieved in that to do below in conjunction with accompanying drawing and specifies.

See Fig. 1, the longitudinal submerged arc welded pipe sizing mill, by support 1, N passage left side roll 2, roll groove 3, N passage bottom roll 4, bearing 5, N passage right side roll 6, epicyclic gearbox 7, reductor 8, lift 9, crossbeam 10 and N passage topping roll 11 form, support 1 is reducing mill stand independently, be provided with bearing 5 at support 1, N passage left side roll 2 and N passage right side roll 6 are arranged on the bearing 5, between N passage left side roll 2 and N passage right side roll 6, be provided with N passage bottom roll 4 and N passage topping roll group 11, at N passage left side roll 2, N passage bottom roll 4, the roll vertical direction of N passage right side roll 6 and N passage topping roll group 11 is provided with wide 1～150 ㎜, the roll groove 3 of dark 0～50 ㎜ passes through in groove 3 during the submerged arc weld sizing.

In the longitudinal submerged arc welded pipe sizing mill, be provided with epicyclic gearbox 7, reductor 8, lift 9 and crossbeam 10 at the utility model.

During operation, with the weld seam of steel pipe aim at N passage left side roll 2, N passage bottom roll 4 and N passage right side roll 6 up and down or left and right sides roll groove 3, start the roller rotational steel pipe of nipping, according to steel pipe modification state in longitudinal submerged arc welded pipe sizing mill sizing, the different sizing rate of vertical, flat, vertical, flat mode and each passage that is arranged as is finished the fixed diameter process of steel pipe by the longitudinal submerged arc welded pipe sizing mill.

Claims

1. longitudinal submerged arc welded pipe sizing mill, it is characterized in that: support (1) is reducing mill stand independently, be provided with bearing (5) at support (1), N passage left side roll (2) and N passage right side roll (6) are arranged on the bearing (5), between N passage left side roll (2) and N passage right side roll (6), be provided with N passage bottom roll (4) and N passage topping roll group (11), at N passage left side roll (2), N passage bottom roll (4), the roll vertical direction of N passage right side roll (6) and N passage topping roll group (11) is provided with wide 1～150 ㎜, the roll groove (3) of dark 0～50 ㎜, submerged arc weld passes through in groove (3) when the aligning sizing.