CN2281854Y

CN2281854Y - Steel core cast adhesive composite roller for transmitting large power and large torque

Info

Publication number: CN2281854Y
Application number: CN 96216881
Authority: CN
Inventors: 蔡水金
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-09
Filing date: 1996-07-09
Publication date: 1998-05-20
Anticipated expiration: 2006-07-09

Abstract

The utility model relates to a steel core cast adhesive composite roller for transmitting large power and large torque. The utility model is characterized in that an adhesive layer 2 is arranged between a roll core 1 and a roll sleeve 3. The utility model has the advantages of simple structure, high intensity of the adhesive layer and low cost. The difficult problems that the domestic centrifugal casting process does not pass a test, the large torque composite roller still needs to be imported, and the metal composite process for bonding two material with large performance differences is difficult; the use of the adhesive composite roller is safe, and the roll core 1 of the roller can be reused, etc.

Description

Transmit high-power, the bonding compound roll shaft of high pulling torque steel-cored cast-iron

The utility model relates to the steel rolling roll of metallurgy industry, the composite roll of particularly high-power, high pulling torque.

Roll is the important tool that steel rolling is produced, and also is the large spare part that often consumes.For satisfying the instructions for use that steel rolling is produced, the body of roll is wanted the good quality work layer of high wear-resistant, anti-strip, anti-surface coarsening, anti-stocking bonding and cracking resistance, roller core then requires to bear high draught pressure, moment of torsion and curved power, and roll neck does not partly allow to produce any fracture.This kind because of the long stable performance of its life-span, obtaining promotion and application widely with the bonding composite material roller of steel-cored cast-iron.Composite material roller, existing all is to adopt special spun casting technology to make both at home and abroad.This complex process, have high input, the cost height, to two kinds of composite rolls that metal material difference is big, domestic spun casting technology does not also reach a standard, main dependence on import.That composite roller (CN2203194Y) and a kind of roll (CN2200490Y) all can not solve is high-power, the steel core and the close compound difficult problem of the compound roll shaft of cast iron of high pulling torque roll.

The purpose of this utility model is to overcome big compound of two kinds of metal material differences that prior art exists and is difficult for a married difficult problem.

The purpose of this utility model adopts following design to realize: be provided with tack coat between roller core and roller shell, steel roller core and cast iron roll cover closely is bonded into one.

The drawing explanation:

Fig. 1 is a structural representation of the present utility model.

Effect of the present utility model is remarkable: owing to adopt a kind of its thermal coefficient of expansion and iron and steel to approach, it is bonding The tack coat that intensity is very high, the bimetallic roll shaft that two kinds of metal materials are differed greatly closely is combined into one, It is high-power to satisfy transmission, the instructions for use that high pulling torque steel rolling is produced. Present technique is simple in structure, cost is low, steel Core is reusable, has solved domestic spun casting technology and has not reached a standard, and the compound roll shaft of high-power, high pulling torque needs The difficult problem of import.

Further specify the utility model below in conjunction with accompanying drawing and embodiment: between the roller shell 3 of prior art steel roller core 1 and cast iron, establish tack coat 2.Technical process is on the surface of roller core 1, applies one deck adhesive glue equably and forms tack coat 2, puts roller shell 3.The power of the composite roll transmission of the utility model manufacturing can reach 3000KW, moment of torsion 500KNM.When the rolling use of the composite roll that the utility model is made arrives the lifetime limitation size, can more renew roller shell, roller core 1 is still reusable.Present technique also is applicable to the reparation of roll neck fracture and wearing and tearing.

Claims

1. high-power, the bonding compound roll shaft of high pulling torque steel-cored cast-iron of transmission is made of roller core (1) and roller shell (3), it is characterized in that, establishes tack coat (2) between roller core (1) and roller shell (3).