CN2805914Y

CN2805914Y - Novel grinding roll surface for rolling

Info

Publication number: CN2805914Y
Application number: CN 200520031386
Authority: CN
Inventors: 刘红军; 王素玲; 杨纪昌; 郝兵; 高苏川; 张光宇; 张升奇
Original assignee: ZHONGXIN HEAVY MACHINERY CO
Current assignee: CITIC Heavy Industries Co Ltd
Priority date: 2005-07-29
Filing date: 2005-07-29
Publication date: 2006-08-16
Anticipated expiration: 2015-07-29

Abstract

The utility model relates to a novel grinding roll surface for rolling, which adopts a roll sleeve (1) which is made of high quality carburized steel and is under carburizing and quenching heat treatment in the working process, post nails (2) which are made of hard alloy materials are inlaid on the surface of the roll sleeve, and the post nails are fixed on the roll sleeve in an interference assembling mode. Because the roll sleeve adopts the high quality carburized steel and is under carburizing and quenching heat treatment, the surface hardness of the roll sleeve is very high, and the abrasiveness resistance for pulverizing materials of the roll surface is enhanced under the high pressure; the hard alloy post nails are reasonably and densely distributed at the surface of the roll sleeve in an interlaced array mode, the novel post nail type grinding roll surface for rolling is composed of the roll sleeve and the hard alloy post nails, when the novel post nail type grinding roll surface for rolling and pulverizing materials, the materials are filled among the post nails to form an authigenic material pad to cause the material to be mutually pulverized, intense abrasion of the roll surface, which is born through directly contacting the materials, is avoided, the phenomenon that material blocks directly shock the roll surface is prevented and the motion abrasion with high abrasiveness is born when the materials are parallel to the roll surface.

Description

A kind of novel roll-in grinding roller face

Technical field:

The utility model relates to the roll-in milling equipment technical field that is used for metallurgy, mine, coal, chemical engineering industry, a kind of novel roll-in grinding roller face.

Background technology:

In metallurgy, mine, coal, chemical engineering industry, use, according to high pressure bed of material crushing mechanism, two compression rollers that rotate in opposite directions of its roll-in mill produce huge extruding force material are pulverized under the hydraulic system effect, and the roll surface life-span of its compression roller is related to operation rate and maintenance cost.Tradition roll-in grinding roller face adopts the built-up welding form more, roughly can be divided into two kinds: a kind of is the vertical bar decorative pattern, the vertical bar decorative pattern is " one " font and " people " font, the advantage of above-mentioned two kinds of decorative pattern forms is: the built-up welding operating procedure is simple, but because of its roll surface wearable flower pattern poor, quick abrasion during use, peel off easily, need frequent REPAIR WELDING, the maintenance cost height, and be the trend that progressively is eliminated; The 2nd, the decorative pattern form of built-up welding round dot in the middle of Argyle adds, this form built-up welding roll surface decorative pattern form wearability increases than vertical bar decorative pattern, but the common drawback roll surface integral hardness of it and vertical bar decorative pattern is lower, and can not form spontaneous formula backing strap, can not solve roll surface abrasion problem effectively.

Summary of the invention:

In order to overcome technological deficiency as mentioned above, the purpose of this utility model provides a kind of novel roll-in grinding roller face, makes it have the hardness height, erosion resistance is strong, and long service life is to reduce the maintenance of equipment expense, reduce the maintenance of equipment time, effectively improve equipment operation efficient.

For achieving the above object, the utility model adopts following technical scheme:

This novel roll-in grinding roller face, it has adopted high-quality carburizing steel and carried out the heat treated roller shell of carburizing and quenching in process, and the surface of roller shell is inlaid with the post nail that adopts Hardmetal materials to make; The post nail is inlayed with the interference assembling form and is fixed on the roller shell.

Owing to adopted technical scheme as mentioned above, the utlity model has following superiority;

Because its roller shell has adopted high-quality carburizing steel, and through carburizing and quenching heat treatment, its roller shell case hardness is very high, has improved the roll surface erosion resistance of comminuting matter under high pressure; The hard alloy columnar nail is with the reasonably densely covered roller shell surface of the form of being staggered; Grind novel post nail formula roll surface by the roll-in that roller shell and hard alloy columnar nail are formed, when its comminuting matter, be full of material between the post nail and form spontaneous formula backing strap, storeroom is pulverized mutually, avoided roll surface directly to contact material and bear sharp wear, in case the stops material directly impacts roll surface, and bear material and be parallel to the strong motion wearing and tearing of roll surface, abrasion, wearing and tearing mainly occur in the very strong hard alloy columnar of erosion resistance and nail on, and the roll surface working life is increased substantially, and can effectively improve operation rate.

The drawing explanation:

Fig. 1 is the structural representation of novel roll-in grinding roller face:

Fig. 2 be the A-A of roll-in grinding roller face to view:

Shown in the figure: 1-roller shell, 2-post nail.

The specific embodiment:

As shown in Fig. 1,2: this novel roll-in grinding roller face, it has adopted high-quality carburizing steel and carried out the heat treated roller shell of carburizing and quenching (1) in process, and the surface of roller shell is inlaid with the post nail (2) that adopts Hardmetal materials to make; The post nail is inlayed with the interference assembling form and is fixed on the roller shell.

Claims

1, a kind of novel roll-in grinding roller face is characterized in that: adopted high-quality carburizing steel and carry out the heat treated roller shell of carburizing and quenching (1) in process, the surface of roller shell is inlaid with the post nail (2) that adopts Hardmetal materials to make; The post nail is inlayed with the interference assembling form and is fixed on the roller shell.