CN211939018U

CN211939018U - Steel ladle continuous casting rotating arm

Info

Publication number: CN211939018U
Application number: CN201922242214.0U
Authority: CN
Inventors: 姜淑华; 韩宏刚; 齐胜文; 李秋阳
Original assignee: Angang Heavy Machinery Co Ltd
Current assignee: Angang Heavy Machinery Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-11-17
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to a ladle continuous casting rotating arm, which comprises a panel and a middle rib plate, wherein the panel is symmetrically arranged, the middle rib plate is parallel to the panel, the bottom of the panel and the bottom of the middle rib plate are welded and fixed through a bottom plate, rib plates are welded between the panel and the middle rib plate, and the panel, an upper supporting plate, a vertical wall plate, an inclined supporting plate and a bottom supporting plate are welded to form a middle bent cavity structure; vertical rib plates are fixed on two sides of the middle rib plate, the upper end and the lower end of each vertical rib plate are welded with the rib plates, and the side edges of the vertical rib plates are welded with the upper supporting plate, the vertical wall plate, the inclined supporting plate and the bottom supporting plate; the reinforcing plate is welded on the outer side of the panel, and the rib plate fixed at the upper end of the vertical rib plate is not overlapped with the welding seams of the inclined supporting plate and the bottom bracing plate. The advantages are that: the structure is reasonable, the structural strength is improved, and the maintenance frequency is reduced; by changing the groove form of the original design, the strength of the ladle continuous casting rotating arm is improved, and the overhaul frequency of the equipment is reduced.

Description

Steel ladle continuous casting rotating arm

Technical Field

The utility model belongs to ladle supporting mechanism especially relates to a ladle continuous casting rocking arm.

Background

Referring to fig. 1 and 2, the ladle continuous casting arm is a component for supporting a ladle, and once cracks or even breaks occur, production stop repair is required to avoid safety accidents, the position where the cracks occur is mainly a groove through observation, and a weld joint at the position B1 is not in place due to small groove opening and poor weld joint strength due to poor weld quality as shown in fig. 4. In addition, cracks also appear in the plug welding holes of the panel near the groove, as shown in fig. 3, the reason for this is mainly that the plug welding holes in the same direction as the cracks are formed at the position where the stress is maximum on the panel, so that the strength of the steel plate is reduced, and the welding quality at the plug welding holes is poor. In order to reduce the repair times of the continuous casting rotating arm, the strength of the continuous casting rotating arm needs to be increased.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a ladle continuous casting rotating arm, which increases the strength of the rotating arm and reduces the overhaul times of equipment.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

a steel ladle continuous casting rotating arm comprises symmetrically arranged panels and middle rib plates parallel to the panels, wherein the bottoms of the panels and the middle rib plates are fixedly welded through bottom plates, rib plates are welded between the panels and the middle rib plates, and the panels, an upper supporting plate, a vertical wall plate, an inclined supporting plate and a bottom supporting plate are welded to form a middle bent cavity structure; vertical rib plates are fixed on two sides of the middle rib plate, the upper end and the lower end of each vertical rib plate are welded with the rib plates, and the side edges of the vertical rib plates are welded with the upper supporting plate, the vertical wall plate, the inclined supporting plate and the bottom supporting plate; the reinforcing plate is welded on the outer side of the panel, and the rib plate fixed at the upper end of the vertical rib plate is not overlapped with the welding seams of the inclined supporting plate and the bottom bracing plate.

The upper supporting plate and the vertical wall plate are welded in a k-shaped groove mode.

Compared with the prior art, the beneficial effects of the utility model are that:

the ladle continuous casting rotating arm changes the internal structure and the welding position, and cancels the plug welding hole with the maximum stress, so that the structural strength of the ladle continuous casting rotating arm is enhanced, and the maintenance frequency is reduced; by changing the groove form of the original design, the strength of the ladle continuous casting rotating arm is improved, the overhaul frequency of equipment is reduced, the repair cost, manpower and material resources are greatly reduced, and the production is restored in advance.

Drawings

FIG. 1 is a schematic view of the structure of a raw continuous casting arm.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a schematic view of a plug weld hole.

Fig. 4 is a schematic view of the location of a crack.

Fig. 5 is a schematic structural diagram of the ladle continuous casting rotating arm after fracture repair.

Fig. 6 is a cross-sectional view taken along line b-b of fig. 5.

Fig. 7 is a schematic structural view of a panel.

Fig. 8 is a schematic structural view of the vertical rib plate.

Fig. 9 is a schematic structural view of the reinforcing plate.

In the figure: 1. 3-panel 2-

middle rib plates

41, 42, 43 and 44-rib plate 5-bottom plate 6-inclined supporting plate 7-bottom supporting plate 8-upper supporting plate 9-vertical wall plate 10-vertical rib plate 11-reinforcing plate 12-plug welding hole 13-crack.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.

Referring to fig. 5-9, the ladle continuous casting rotating arm comprises symmetrically arranged

panels

1 and 3 and a middle rib plate 2 parallel to the

panels

1 and 3, the bottoms of the

panels

1 and 3 and the middle rib plate 2 are welded and fixed through a bottom plate 5,

rib plates

43 and 44 are welded between the

panels

1 and 3 and the middle rib plate 2, and the

panels

1 and 3, an upper supporting plate 8, a vertical wall plate 9, an inclined supporting plate 6 and a bottom supporting plate 7 are welded to form a middle bent cavity structure; vertical rib plates 10 are fixed on two sides of the middle rib plate 2, and the vertical rib plates 10 are parallel to the middle rib plate 2, so that the stress strength is improved; the upper end and the lower end of the vertical rib plate 10 are welded with

rib plates

43 and 44, and the side edge of the vertical rib plate 10 is welded with an upper supporting plate 8, a vertical wall plate 9, an inclined supporting plate 6 and a bottom supporting plate 7; reinforcing plates 11 are welded on the outer sides of the

panels

1 and 3, so that the structural strength is improved; the rib plate 43 fixed at the upper end of the vertical rib plate 10 is not overlapped with the welding seams of the inclined strut plate 6 and the bottom bracing plate 7, so that welding is reduced, and the strength is improved, as shown in the position A2 of FIG. 5; the groove form of the welding seam at the position B1 is changed into a k-shaped groove form at the position B2 shown in figure 5, so that the welding quality is improved, and the structural strength is improved.

The specific welding sequence is as follows:

assembling a weldment for the first time: the middle rib plate 2, the rib plate 43 arranged on the plug welding hole 12, the inclined supporting plate 6, the bottom supporting plate 7, the upper supporting plate 8 and the vertical wall plate 9; and (3) second assembling and welding: a vertical rib plate 10; and (3) third assembling and welding: a rib plate 44 arranged at the bottom of the stud plate 10; fourth time assembling weldment: a bottom plate 5,

panels

1, 3; fifth assembling weldment: a reinforcing plate 11. During welding: preheating at 80-100 deg.c before welding, preheating with baking gun, gas shielded welding, welding wire ER50-6,

welding wire, preferably

The welding wire of (1); narrow-path multilayer welding, wherein the welding of the welding space is carried out while hammering and stress relieving, and a carbon arc gouging is carried out to clean welding roots; polishing two sides of a welding seam after welding, and removing splashing, rust and steel slag; and (4) flaw detection, wherein ultrasonic flaw detection is carried out on the welded seam after welding, the flaw detection standard is that GB/T11345-89 II grade flaw detection is qualified, and the quality of the welded seam on the surface meets the requirements of JB/T5000.3 standard.

The utility model discloses the structure is more reasonable, improves structural strength, avoids taking place the phenomenon of local crackle. The plug welding hole at the position with the largest stress is cancelled, so that the structural strength of the ladle continuous casting rotating arm is enhanced, and the maintenance frequency is reduced; by changing the groove form of the original design, the strength of the ladle continuous casting rotating arm is improved, the overhaul frequency of equipment is reduced, the repair cost, manpower and material resources are greatly reduced, and the production is restored in advance.

Claims

1. A steel ladle continuous casting rotating arm comprises symmetrically arranged panels and middle rib plates parallel to the panels, wherein the bottoms of the panels and the middle rib plates are fixedly welded through bottom plates, rib plates are welded between the panels and the middle rib plates, and the panels, an upper supporting plate, a vertical wall plate, an inclined supporting plate and a bottom supporting plate are welded to form a middle bent cavity structure; the vertical gusset plate is characterized in that vertical gusset plates are fixed on two sides of the middle gusset plate, the upper end and the lower end of each vertical gusset plate are welded with the gusset plates, and the side edges of the vertical gusset plates are welded with the upper supporting plate, the vertical wall plate, the inclined supporting plate and the bottom supporting plate; the reinforcing plate is welded on the outer side of the panel, and the rib plate fixed at the upper end of the vertical rib plate is not overlapped with the welding seams of the inclined supporting plate and the bottom bracing plate.

2. The ladle continuous casting rotating arm as claimed in claim 1, wherein the upper supporting plate and the vertical wall plate are welded in a k-groove manner.