CN201543455U

CN201543455U - Engaging gear crown type single-toothed roll for sinter breaker

Info

Publication number: CN201543455U
Application number: CN2009202138595U
Authority: CN
Inventors: 丛欣滋; 丛林火
Original assignee: SHANGHAI JINCHUAN MECHANICAL AND ELECTRICAL TECHNOLOGY Co Ltd
Current assignee: SHANGHAI JINCHUAN MECHANICAL AND ELECTRICAL TECHNOLOGY Co Ltd
Priority date: 2009-11-19
Filing date: 2009-11-19
Publication date: 2010-08-11
Anticipated expiration: 2019-11-19

Abstract

The utility model provides an engaging gear crown type single-toothed roll used for a sinter breaker, which comprises a gear roller with a gear handle and a gear crown; and the single-toothed roll is characterized in that the gear handle is provided with a backrest and a plug, an assembly socket is arranged at the bottom of the gear crown, the shape of the assembly socket of the gear crown is matched with those of the backrest and the plug of the gear handle, and connecting welding seams are respectively formed between both sides of the assembly socket of the gear crown and between both sides of the gear handle. The utility model has the advantages that the traditional single-toothed roller structure is changed, and after wear failure of the single roll, the gear crown is only required to be replaced, and the replacement of the fluted disc is avoided, therefore, the material consumption and the processing cost are both reduced, and the gear crown is easy to operate during the replacement.

Description

A kind of crown formula sinter breaker monodentate roller that connects

Technical field

The utility model relates to a kind of sinter breaker monodentate roller, belongs to the sinter breaker technical field.

Background technology

In the smelting process of iron and steel and non-ferrous metal, sintering is a first road master operation.Sintering crushing will be worked continuously always, when sinter cake arrives single roll crusher, and approximately nearly 1000 degrees centigrade of its temperature, the environment temperature of monodentate roller work is about 700～800 degrees centigrade.Under this temperature, the antifriction metal (AFM) of extreme hardness is also all obviously softening.The sintering deposit of adding iron is hard especially, and in process of production, the wearing and tearing of the crown of discaling roll are severe especially, belongs to the local strong wearing and tearing of high temperature, and crown has ground the monodentate roller and promptly lost efficacy and will change.China has three kinds in the past and on the monodentate roll structure that uses now.What introduce in early days is bolt fastening structure, and sintering machine is all smaller, now is eliminated.The eighties in last century, large-scale steel plant start and introduce the water cooling type single discaling roll, this monodentate roller manufacturing technology more complicated, a large-scale monodentate roller weight between 50～60 tons, difficult maintenance, inapplicable to medium and small steel mill especially.Introduced toothed disc type monodentate roller afterwards again, this monodentate roller is made than being easier to, but the split carrying, but the consumption metal material is many.But the overwhelming majority is a toothed disc type in the monodentate roller of present domestic operation.

No matter the monodentate roller of which kind of version all is uniform three teeth on every row's roll shaft cross section, as shown in Figure 1.Three teeth on the fluted disc, wherein every tooth specifically can be divided into, and A is a crown, and B is the inefficacy critical line, and C is the tooth handle.Toothed disc type monodentate roller generally is made of on a hexagonal axle 11～18 fluted disc strings.Toothed disc type monodentate roller crown has ground, and the weight metal that mill loses approximately has only about 5% of whole fluted disc weight.And several rows' wearing and tearing are heavier than several toothrows in both sides in the middle of the monodentate roller, so several toothrows lost efficacy earlier always, the monodentate roller promptly lost efficacy like this.Discaling roll lost efficacy and can't repair basically, and a large amount of metals become steel scrap, have also wasted a large amount of processing charges, are big problems that exists in the present agglomerating plant.

The utility model content

The purpose of this utility model provides a kind of monodentate roller that caused the lot of materials waste after the monodentate roller lost efficacy that solves.

In order to achieve the above object, the technical solution of the utility model has provided a kind of crown formula sinter breaker monodentate roller that connects, comprise the discaling roll and the crown that have the tooth handle, it is characterized in that, the tooth handle has backrest and plug, crown bottom is provided with the assembling socket, and the assembling socket shape of crown matches with the backrest and the plug shape of tooth handle, is respectively equipped with attachment weld between the both sides of the assembling socket both sides of crown and tooth handle.

Behind the crown wear out failure, available carbon arc gas Bao or fluting cut the bar Bao and remove attachment weld, take off the nubbin of inefficacy crown, reused after allowing the monodentate roller change new crown, caused a lot of waste of material problems with regard to having solved after toothed disc type monodentate roller lost efficacy like this.

The utility model has the advantages that: changed traditional monodentate roll structure, after single roller mill loss is imitated, only need to change crown and do not need to change fluted disc, thereby reduced material consumption and processing charges widely, and it has been easy to operate to change crown.

Description of drawings

Fig. 1 is a conventional tooth disc type monodentate roller fluted disc structural representation;

A kind of crown formula monodentate roller schematic cross-section that connects that Fig. 2 provides for the utility model;

Fig. 3 is for connecing crown formula monodentate roller fluted disc schematic diagram;

Fig. 4 is for connecing crown formula monodentate roller crown schematic diagram.

The specific embodiment

Specify the utility model below in conjunction with embodiment.

Embodiment

As shown in Figure 2,, implement to make an external diameter 1800mm, medium-sized single roller of 33 teeth of 11 rows, No. 25 cast steels of the material selection of its discaling roll 4 and crown 1 by its structure for a kind of structural representation that connects crown formula monodentate roller that the utility model provides.Wherein the diameter of discaling roll 4 is 600mm, tooth handle 3 has backrest and plug, long 350mm, crown 1 bottom has the assembling socket, and shape matches between the socket of crown 1 and tooth handle 3 backrests and the plug, and crown 1 is assemblied on the tooth handle 3, then that 2 welderings of two attachment welds are appropriate, promptly be made into a roller tooth, all weldering is appropriate with 33 roller teeth, promptly is made into a diameter 1800mm and connects crown formula monodentate roller.

Behind crown 1 wear out failure, cut the bar Bao with carbon arc gas Bao or fluting and remove attachment weld 2, after being taken off, the nubbin of inefficacy crown 1 changes new crown.

The technical solution of the utility model equally also can be used on traditional toothed disc type monodentate roller.With original fluted disc make as shown in Figure 3 the crown formula that connects monodentate roller fluted disc 5 and crown 1 as shown in Figure 4, both are welded together promptly constitute a slice and connect crown formula monodentate roller fluted disc, it is all right to change crown with regard to not changing fluted disc again behind the crown wear out failure of this fluted disc.

Claims

1. one kind connects crown formula sinter breaker monodentate roller, comprise the discaling roll (4) and the crown (1) that have tooth handle (3), it is characterized in that, tooth handle (3) has backrest and plug, crown (1) bottom is provided with the assembling socket, the assembling socket shape of crown (1) matches with the backrest and the plug shape of tooth handle (3), is respectively equipped with attachment weld (2) between the assembling socket both sides of crown (1) and tooth handle (3).