CN201447487U

CN201447487U - Converter trunnion ring with U-shaped opening structure

Info

Publication number: CN201447487U
Application number: CN2009200160414U
Authority: CN
Inventors: 姜淑华
Original assignee: Angang Heavy Machinery Co Ltd
Current assignee: Angang Heavy Machinery Co Ltd
Priority date: 2009-07-31
Filing date: 2009-07-31
Publication date: 2010-05-05
Anticipated expiration: 2019-07-31

Abstract

The utility model relates to a converter trunnion ring with a U-shaped opening structure, comprising a segment body and a trunnion block; the converter trunnion ring is characterized in that: an upper cover board and a lower cover board of the segment body and the trunnion block are respectively covered on the end surfaces of an inner web plate and an outer web plate, V-shaped grooves are respectively arranged at the end parts of the inner web plate and the outer web plate and technique base plates which can limit the assembling reference of the upper cover board and the lower cover board are arranged at the end parts of the inner web plate and the outer web plate; one end of the upper cover board of the trunnion block is arranged on the end surface of the inner web plate and the other end thereof is leaned against to the outer web plate, the base plates are arranged on the inner web plate and the outer web plate to ensure the upper plane of the upper cover board and the end surface of the outer web plate to be parallel and level; the V-shaped grooves at the end parts of the inner web plate and the outer web plate are single-surface grooves, and the groove angle is 30-60 degrees. The converter trunnion ring has the beneficial effects that: the groove type of the inner web plate, the outer web plate and the upper cover board is changed into V shape, and the technique base plates are used for determining the assembling reference, so as to lead the discharging, forming, assembling and welding operation to be simple and labor-saving, and the welding quality is obviously improved.

Description

A kind of converter trunnion ring of U type hatch frame

Technical field

The utility model relates to the converter trunnion ring of a kind of U type hatch frame in the steel smelting equipment field.

Background technology

At present, converter trunnion ring mostly is ring structure, the slope type of endosternum, outer web and upper cover plate is a K type groove, for the converter trunnion ring of U type hatch frame, if the slope type of endosternum, outer web and upper cover plate also is a K type groove, upper cover plate and lower cover are embedded between endosternum and the outer web, very unfavorable when assembling, there is not reference for assembling, post welding distortion is bigger than ring structure, welding welding position and space are very bad simultaneously, can not guarantee welding quality.

Summary of the invention

The purpose of this utility model provides a kind of converter trunnion ring of U type hatch frame, and reference for assembling is set, and makes blanking, moulding, assembling, welding operation simple, laborsaving, reduces widely and reprocesses cost.

For solving the problems of the technologies described above, the technical solution of the utility model is:

A kind of converter trunnion ring of U type hatch frame, comprise segment and gudgeon piece, it is characterized in that, the upper cover plate of segment and gudgeon piece and lower cover cover respectively on the end face of endosternum and outer web, and endosternum and outer web end have double V-groove and be provided with the technology backing plate of qualification upper cover plate and lower cover reference for assembling.

Upper cover plate one end of described gudgeon piece is arranged on the endosternum end face, and the other end withstands on the outer web, and endosternum is provided with backing plate with outer web and guarantees that the plane is concordant with outer web end face on the upper cover plate.

The double V-groove of described endosternum and outer web end is a single groove, and groove angle is 30～60 °.

Compared with prior art, the beneficial effects of the utility model are: change the slope type of endosternum, outer web and the upper cover plate of the converter trunnion ring of U type hatch frame into double V-groove, and after determining reference for assembling with the technology backing plate, make blanking, moulding, assembling, welding operation simple, laborsaving, welding quality obviously improves, and one time flaw detection qualification rate reaches more than 99%, reduces widely and reprocesses cost, form and position tolerance is effectively controlled, and gudgeon right alignment 100% is qualified.

Description of drawings

Fig. 1 is the structural representation of the converter trunnion ring of U type hatch frame;

Fig. 2 is the backing ring A-A schematic cross-section of prior art;

Fig. 3 is the backing ring B-B schematic cross-section of prior art;

Fig. 4 is the backing ring C-C schematic cross-section of prior art;

Fig. 5 is a backing ring A-A schematic cross-section of the present utility model;

Fig. 6 is a backing ring B-B schematic cross-section of the present utility model;

Fig. 7 is a backing ring C-C schematic cross-section of the present utility model;

Fig. 8 is the enlarged view of weld seam I among Fig. 6;

Fig. 9 is the enlarged view of weld seam II among Fig. 6;

Figure 10 is the enlarged view of weld seam III among Fig. 7.

The outer web 4-lower cover 5-gudgeon 6-technology backing plate 7-hanger 8-furnace shell 9-manhole 10-segment 11-gudgeon piece of 1-upper cover plate 2-endosternum 3-among the figure

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described further:

A kind of converter trunnion ring of U type hatch frame, the upper cover plate 1 of segment 10 and gudgeon piece 5 covers respectively on the end face of endosternum 2 and outer web 3 with lower cover 4, and interior abdomen 2 plates and outer web 3 ends are equipped with double V-groove respectively and are provided with the technology backing plate 6 of qualification upper cover plate 1 and lower cover 4 reference for assemblings.

Upper cover plate 1 one ends of gudgeon piece 5 are arranged on endosternum 2 end faces, and the other end withstands on the outer web 3, and endosternum 2 is provided with technology backing plate 6 with outer web 3 and guarantees that the plane is concordant with outer web 3 end faces on the upper cover plate 1.

The double V-groove of endosternum 2 and outer web 3 ends is a single groove, and groove angle is 30～60 °.

See Fig. 1, this converter trunnion ring is a not closed state of U-shaped opening, is again at 6 and hangs, and the welding space is narrow and small, the interior welds difficulty, and welding distortion is very big.3 groups of furnace shells overlap backing ring with one, and backing ring upper cover plate 1 must guarantee concordant, and making welding difficulty is very big like this, need work out feasible blanking, assembling, weldprocedure and guarantee to make quality.

See Fig. 2, Fig. 3, Fig. 4, the main schematic cross-section of the backing ring of prior art, upper cover plate 1, lower cover 4 be K type groove with endosternum 2, outer web 3, do not locate benchmark, it is low and be easy to occur welding distortion to splice efficient.On outer web 3 and the lower cover 4 manhole 9 is set.

See Fig. 5, Fig. 6, Fig. 7, by the double V-groove pattern that is beneficial to outside construction, to each splice blanking, all adopt the numerical control cutting blanking, guarantee the requirement of single-piece size conforms drawing, reduce because the scale error that causes of blanking, and every is self check, specially can changes assembling procedure over to after examining passed examination.And connect by the vertical position welding of following step group:

1. the assembly welding of segment 10, to job platform with spirit-leveling instrument super flat after, on job platform, put full pattern, perform the cross centre line of assembling and the size medullary ray of backing ring segment 10, determine reference for assembling and carry out the assembly unit and the welding of segment 10 with technology backing plate 6 after the passed examination.To the ingredient assembly welding of upper cover plate 1, lower cover 4, the orthopedic back of postwelding is a benchmark with lower cover 4 earlier, and assembling endosternum 2, outer web 3 and inner gusset weld after the passed examination.Weld preheating to 120 ℃, the method for taking segmentation to be symmetrically welded, the weld seam of the inner gusset of welding earlier, weld the weld seam of endosternum 2, outer web 3 and lower cover 4 then, treat to assemble upper cover plate 1 after the internal soundness passed examination, then, carry out the welding of the weld seam of segment 10 outsides.By repeatedly grouping is upright: on the one hand endosternum 2, outer web 3 and upper cover plate 1, lower cover 4 can be soldered to, penetration fully, and being symmetrically welded makes the little and distortion of welding stress can be even.On the other hand, the welding operation that helps the welding operation worker.Upper cover plate 1 is seen Figure 10 with the weld seam of endosternum 2, and backing plate 6 is set under the weld seam.

2. the assembling of ring trunnion piece 11, to job platform with spirit-leveling instrument super flat after, on job platform, put full pattern, perform the cross centre line of assembling and the size medullary ray of ring trunnion body, carry out the assembling of the endosternum 2 of backing ring, outer web 3 and gudgeon 5 earlier, carry out the assembling of other part of backing ring after the welding inspection of assurance and gudgeon 5 is qualified again

3. backing ring is always assembled, and in order to prevent welding distortion, adds rigid support at the backing ring opening end.

4. the assembly welding of hanger, the fitted position line of good hanger 7 is drawn in backing ring centering, leveling that assembly welding is good on the upper cover plate of backing ring, carry out the assembling of six pairs of hangers 7 after the passed examination.Owing to the distance between every pair of hanger 7 plates is very little, be to guarantee welding quality, change the symmetrical groove that designs into inner small and outside big double V-groove, add rigid support and fix, reduce welding distortion, guarantee the morpheme tolerance of dimension of hanger 7.Crucial weld seam is seen Fig. 8, Fig. 9.

5. after the pre-assembling of furnace shell and backing ring, hanger on the assembly welding furnace shell 8 again, the tolerance of checking each relative position meets the requirements. guarantee that every group of furnace shell 8 and backing ring exchange. after pre-assembled state must be the position firm welding that can weld, remove furnace shell 8 again, like this, can guarantee the planeness of the hanger seat on the furnace shell 8, and can be seated in stably on the backing ring, guarantee its due function and guarantee every group of furnace shell 8 and backing ring interchangeability, avoided the amount of reprocessing of welding distortion greatly.

Claims

1. the converter trunnion ring of a U type hatch frame, comprise segment and gudgeon piece, it is characterized in that, the upper cover plate of segment and gudgeon piece and lower cover cover respectively on the end face of endosternum and outer web, and endosternum and outer web end have double V-groove and be provided with the technology backing plate of qualification upper cover plate and lower cover reference for assembling.

2. the converter trunnion ring of a kind of U type hatch frame according to claim 1, it is characterized in that, upper cover plate one end of described gudgeon piece is arranged on the endosternum end face, the other end withstands on the outer web, and endosternum is provided with backing plate with outer web and guarantees that the plane is concordant with outer web end face on the upper cover plate.

3. the converter trunnion ring of a kind of U type hatch frame according to claim 1 and 2 is characterized in that, the double V-groove of described endosternum and outer web end is a single groove, and groove angle is 30～60 °.