CN208116398U - A kind of sleeved sendzimir mill first intermediate roll - Google Patents

Abstract

The utility model discloses a kind of sleeved sendzimir mill first intermediate roll, it is assembled by the way of interference fit by roll body and ring set, and magnitude of interference is 0.15~0.25mm, ring set with a thickness of 15~30mm.The sleeved sendzimir mill first intermediate roll of the utility model can only damage ring set part once unexpected rolling accident occurs, and roll body part is still lossless, to only need to change ring set, thus greatly reduces accident cost.Equally in routine use maintenance, also it is only necessary to replace ring set part, purchase cost is greatly reduced.

Description

A kind of sleeved sendzimir mill first intermediate roll

Technical field

The utility model relates to a kind of Sendzimir rolls, and in particular among a kind of sleeved sendzimir mill first Roller.

Background technique

Milling train is the important equipment that modern steel plate rolling uses, and roll is then the most important composition portion of milling train component / mono-.One conventional rolling mill, it is annual because the cost consumption of replacement roll spare part occupies the 1/3 of spare part totle drilling cost, often Enough roll spare unit are needed to spend million or necessarily purchased every year.As domestic steel industry development is slowed down, domestic steel Yield is also constantly being reduced, and in order to preferably develop in the steel economic slump phase, major iron and steel enterprise is all reducing production cost, And reducing roll buying and use cost also just becomes the element that enterprise is concerned about.

Sendzimir mill is the multiple roll for being difficult to the metal plate coils deformed for rolling stainless steel, silicon steel and steel alloy etc. Formula milling train.Relatively conventional 4 roller mills, 6 roller mills, sendzimir mill can roll out thinner, the higher strip of precision and produce Product.Sendzimir mill（Also referred to as 20 roller mills）By 2 working rolls, 4 first intermediate rolls, 6 the second intermediate calender rolls and 8 branch Runner composition, wherein first intermediate roll is monoblock type（See Fig. 1）, diameter is generally in 100mm or so.

The defect of the monoblock type first intermediate roll is：Once unexpected rolling accident occurs in use process, roller is realized Existing breakage, is gently then repaired, and re-start heat treatment；It is heavy then can only scrap（Because its diameter is smaller）, thus Greatly increase cost.

Utility model content

Purpose of the utility model is to solve the above problems and provide the sleeved Senghis that one kind can substantially reduce cost Mir's milling train first intermediate roll.

Realizing the technical solution of the utility model aim is：A kind of sleeved sendzimir mill first intermediate roll, it is It is made of roll body and ring set.

Since the diameter of first intermediate roll only has 100mm or so, using the side of interference fit between roll body and ring set Formula assembly, magnitude of interference are 0.15~0.25mm.

In addition, due to first intermediate roll using thickness degree generally in 5mm hereinafter, therefore the thickness design of ring set be 15~ 30mm。

The good effect that the utility model has：（1）The sleeved sendzimir mill first intermediate roll of the utility model Once unexpected rolling accident, which occurs, can only damage ring set part, roll body part is still lossless, so that ring set is only needed to change, from And greatly reduce accident cost.Equally in routine use maintenance, also it is only necessary to replace ring set part, greatly reduces and adopt Purchase cost.（2）The sleeved sendzimir mill first intermediate roll of the utility model only needs at induction heat after replacing ring set Reason can guarantee that its surface hardness is uniform and stable, substantially reduce the processing period.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of existing monoblock type sendzimir mill first intermediate roll.

Fig. 2 is the structural schematic diagram of the sleeved sendzimir mill first intermediate roll of the utility model.

Fig. 3 is the left view of Fig. 2.

Specific embodiment

（Embodiment 1）

See that Fig. 2 and Fig. 3, the sleeved sendzimir mill first intermediate roll of the present embodiment are made of roll body 1 and ring set 2.

Since the diameter of first intermediate roll only has 100mm or so, using interference fit between roll body 1 and ring set 2 Mode is assembled, magnitude of interference 0.20mm.

In addition, due to first intermediate roll using thickness degree generally in 5mm hereinafter, therefore the thickness design of ring set 2 is 20mm。

Claims (2)

1. a kind of sleeved sendzimir mill first intermediate roll, it is characterised in that：It is by roll body（1）And ring set（2）Using The mode of interference fit is assembled, and magnitude of interference is 0.15~0.25mm.

2. sleeved sendzimir mill first intermediate roll according to claim 1, it is characterised in that：The ring set（2） With a thickness of 15~30mm.