CN208495382U - A kind of tandem mill intermediate calender rolls - Google Patents

Abstract

The utility model discloses a kind of tandem mill intermediate calender rolls, belong to rolling mill practice field.The body of roll of intermediate calender rolls is cylinder, and body of roll end is set as taper type, and frustum inclined-plane and the body of roll are smooth transition, and the angle of frustum inclined-plane and body of roll axis is 0.1 degree ~ 2 degree.The utility model is designed by cone length, ladder, cone height and the knuckle to Continuous mill train intermediate calender rolls, improves roller system to the adaptability of different size strip, a set of roller system may be implemented while meeting the production requirement of 1200mm and 1500mm product.

Description

A kind of tandem mill intermediate calender rolls

Technical field

The utility model relates to a kind of tandem mill intermediate calender rolls, belong to rolling mill practice field.

Background technique

Stainless steel industry, it is 1200mm and 1500mm that tandem mill produces width usually using the intermediate calender rolls of different roll shapes respectively Product.Parking replacement intermediate calender rolls are required when change product width specification every time.Due to the uncertainty of production plan, Sometimes even by the intermediate calender rolls dismounting trap for being less than service life at the intermediate calender rolls of another specification, production cost is substantially increased And labor intensity.

Summary of the invention

By the design optimization to existing roll shape relevant parameter, the utility model provides a kind of tandem mill intermediate calender rolls, makes it Meet the manufacturing technique requirent of 1200mm and 1500mm product simultaneously, reduce roll change frequency, shorten manufacturing cycle, reduces labor Fatigue resistance improves production efficiency.

The utility model provides a kind of tandem mill intermediate calender rolls, and the body of roll of intermediate calender rolls is cylinder, and body of roll end is set as boring Platform shape, frustum inclined-plane and the body of roll are smooth transition, and the angle of frustum inclined-plane and body of roll axis is 0.1 degree ~ 2 degree.

In above scheme, the frustum inclined-plane and body of roll junction are equipped with transition shoulder, and the body of roll, frustum respectively with transition Knuckle is equipped at the position of step contact.

In above scheme, the knuckle is 5 °, and the height of the transition shoulder is set as 0.1-2mm.

In above scheme, the frustum bus is denoted as cone high H, H 1.2-3.5mm in the height of vertical direction；The cone Platform bus length in the horizontal direction is denoted as cone long L, L 420-490mm.

The utility model changes body of roll structure by the design to Continuous mill train intermediate calender rolls, increase that cone is long, cone is high and The design of knuckle improves roller system to the adaptability of different size strip, and, cone height long by more screwdriver, transition angle can be same When meet the production requirement of 1200mm and 1500mm product.

The utility model has the beneficial effects that

(1) deformation of the position steel edge portion 200mm can be effectively reduced, guarantee that the extension on strip width direction is uniform, It realizes a kind of roll shape while meeting the production requirement of 1200mm and 1500mm stainless steel product；

(2) 75% or more the down time of the unit when of falling specification can be shortened；

(3) enterprise can be reduced for roller quantity, save cost, reduce intermediate calender rolls dismounting and cleaning cost；

(4) unit roll change quantity is reduced, the difficulty of falling steel grade is reduced, reduces production plan difficulty.

Detailed description of the invention

Fig. 1 is the three-dimensional figure of the utility model intermediate calender rolls.

Fig. 2 is the floor map of the utility model intermediate calender rolls.

1 is the body of roll in figure, and 2 be frustum, and 3 be roll neck, and 4 be step, and L is cone length, and H is that cone is high, and R is knuckle.

Specific embodiment

The utility model is further illustrated below by embodiment, but is not limited to following embodiment.

Embodiment 1:

The roller end of intermediate calender rolls is arranged to taper type, as shown in Figure 1, a kind of tandem mill intermediate calender rolls, the body of roll 1 of intermediate calender rolls are Cylinder, 1 end of the body of roll is set as taper type, 2 inclined-plane of frustum and the body of roll 1 as smooth transition, and 2 inclined-plane of frustum and 1 axis of the body of roll Angle be 0.1 degree ~ 2 degree.

In above scheme, 2 inclined-plane of frustum and 1 junction of the body of roll are equipped with transition shoulder 4, and the body of roll 1, frustum 2 are distinguished Knuckle is equipped at the position contacted with transition shoulder 4.

The fabrication of the utility model are as follows:

1) 1 end of the body of roll is equipped with frustum 2, and the position on frustum inclined-plane and roll barrel 1 form step 4, can be effectively reduced The deformation of the position steel edge portion 200mm guarantees that the extension on strip width direction is uniform；

2) design transition fillet (5 °) at the position that the body of roll 1, frustum 2 are contacted with step 4 respectively avoids roll from bearing to press Occur stress concentration when power, improves roll working life；

3) height of transition shoulder 4 is set as 0.5mm, this parameter has a direct impact the deformation uniformity of strip；

4) as shown in Fig. 2, boring high H is 1.6mm, boring long L is 490mm, its purpose is that reducing steel edge portion deformation.

It is tried out in Taiyuan Iron and Steel Co. stainless-steel cold-rolling factory cold continuous rolling 2#RAP line, Fig. 2 is roller used in Taiyuan Iron and Steel Co. cold rolling mill Type.Intermediate calender rolls bore long L and are set as 490mm, and the height of step 4 is set as 0.5mm, bore high H and are set as 1.6mm, frustum inclined-plane with When the angle of body of roll axis is 2 degree, when tandem rolling RAP2 line rolls 304 stainless steel, mill product specification is 1.2mm*1240mm production Product volume 2, intermediate calender rolls are not replaced, and then rolling specs are the product of 1.5mm*1540mm.1.5mm*1540mm product after rolling Surface quality is good, and edge does not find obvious shortcoming, meets our factory's product relevant control standard.

After the utility model is tried out at the scene, it is all practical new using this that Continuous mill train produces 1200mm and 1500mm product The roller system of type design avoids the frequent roll change that unit falls during specification, enterprise operation efficiency is effectively promoted.

Claims (2)

1. a kind of tandem mill intermediate calender rolls, it is characterised in that: the body of roll of intermediate calender rolls is cylinder, and body of roll end is set as taper type, is bored Platform inclined-plane and the body of roll are smooth transition, and the angle of frustum inclined-plane and body of roll axis is 0.1 degree ~ 2 degree；

The frustum inclined-plane and body of roll junction are equipped with transition shoulder, and the position that the body of roll, frustum are contacted with transition shoulder respectively Place is equipped with knuckle；The knuckle is 5 °, and the height of the transition shoulder is set as 0.1-2mm.

2. tandem mill intermediate calender rolls according to claim 1, it is characterised in that: height of the frustum bus in vertical direction It is denoted as cone high H, H 1.2-3.5mm；The frustum bus length in the horizontal direction is denoted as cone long L, L 420-490mm.