CN202097186U

CN202097186U - Flat-roll type backup roll for rolling mill

Info

Publication number: CN202097186U
Application number: CN2011201635263U
Authority: CN
Inventors: 戴荣根; 兰轩
Original assignee: HANGZHOU RONGLI CASTING AND FORGING CO Ltd
Current assignee: HANGZHOU RONGLI CASTING AND FORGING CO Ltd
Priority date: 2011-05-21
Filing date: 2011-05-21
Publication date: 2012-01-04
Anticipated expiration: 2021-05-21

Abstract

The utility model relates to the field of metal pressure processing and discloses a flat-roll type backup roll for a rolling mill, which comprises a backup roll (1) and backup roll necks (2) formed integrally with two ends of the backup roll (1). The circumferential surface of the backup roll (1) is a roll surface (3), two ends of the backup roll (1) are roll ends (4), each backup roll neck (2) extends outwards to form five sections with the radius changing continuously, a round chamfer is used for transition between the backup roll (1) and each backup roll neck (2), an antirust oil layer is coated outside a backup roll, and the ratio of the diameter of each roll end (4) to that of the backup roll (1) is 3 to 10. The flat-roll type backup roll for the rolling mill is fine in quality, capable of meeting requirements for rolled steel performance, low in repair cost and capable of preventing occurrence of local fatigue accidents of the backup roll.

Description

Rolling mill parallel roll profile backing roll

Technical field

The utility model relates to the stress metal manufacture field, relates in particular to a kind of rolling mill parallel roll profile backing roll.

Background technology

Rolling mill is the nucleus equipment of stress metal manufacture field, and the backing roll of rolling mill is a necessary part wherein, and the backing roll of rolling mill generally is made up of roll and journalling sleeve.In the operation of rolling of the middle class in a kindergarten; Reasons such as, production improper use not enough owing to the precision of roll assembling, lubricant viscosity are improper; Often cause the roll neck and the journalling sleeve of backing roll to produce dry friction; Cause the roll neck of backing roll to burn out, form cellular carbon black district, many places, backing roll can't normally be used.And, the operation of enterprise is caused adverse effect because the costing an arm and a leg of backing roll often changed and can be improved production cost greatly.

Because very big operating pressure the time is being born in backing roll work, can be because stressed deforming cause occurring peeling phenomenon, and impression, tired phenomenon are also very serious, have influenced rolled steel plate must produce, and have caused the consume of backing roll to increase.

Summary of the invention

Deform because of stressed easily when working to the backing roll that exists in the prior art; Peel off, impression, tired phenomenon important disadvantages, the purpose of the utility model provide a mass good, can satisfy steel rolling performance requirement, rehabilitation cost low, can prevent the rolling mill parallel roll profile backing roll that backing roll local fatigue accident takes place.

In order to solve the problems of the technologies described above, the utility model is able to solve through following technical proposals:

Rolling mill parallel roll profile backing roll comprises the support roll shaft, and supports the integrally formed support roll neck in roll shaft two ends, and supporting the circumferential surface of roll shaft is roll surface, supports the roll shaft two ends and is roller end.

As preferably, described support roll neck stretches out and is five sections that radius constantly diminishes.It is unreasonable effectively to solve pressure distribution, and the backing roll wearing and tearing are inhomogeneous, and backing roll local fatigue accident takes place, and causes occurring the problem of peeling phenomenon.

As preferably, described support roll shaft and support that transition is a rounded corner between the roll neck.

As preferably, back shaft scribbles antirust oil reservoir outward.

As preferably, roller end and the diameter that supports roll shaft are than being 3:10.

According to the technical scheme of the utility model, rolling mill parallel roll profile backing roll have quality good, can satisfy steel rolling performance requirement, rehabilitation cost low, can prevent the advantage that backing roll local fatigue accident takes place.

Description of drawings

Fig. 1 is the side view of embodiment.

In the accompanying drawing: support roll shaft 1, support roll neck 2, roll surface 3, roller end 4.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail.

Embodiment

Rolling mill parallel roll profile backing roll comprises and supports roll shaft 1, and support the integrally formed support roll neck 2 in roll shaft 1 two ends that supporting roll shaft 1 circumferential surface is roll surface 3, supports roll shaft 1 two ends and is roller end 4.

Described support roll neck 2 stretches out and is five sections that radius constantly diminishes.It is unreasonable effectively to solve pressure distribution, and the backing roll wearing and tearing are inhomogeneous, and backing roll local fatigue accident takes place, and causes occurring the problem of peeling phenomenon.

Transition is a rounded corner between described support roll shaft 1 and the support roll neck 2.

Back shaft scribbles antirust oil reservoir outward.

Roller end 4 is 3:10 with the diameter ratio that supports roll shaft 1.

In a word, the above is merely the preferred embodiment of the utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.

Claims

1. rolling mill parallel roll profile backing roll; Comprise and support roll shaft (1) and support the integrally formed support roll neck (2) in roll shaft (1) two ends; It is characterized in that: supporting the circumferential surface of roll shaft (1) is roll surface (3), supports roll shaft (1) two ends and is roller end (4).

2. rolling mill parallel roll profile backing roll according to claim 1 is characterized in that: described support roll neck (2) stretches out and is five sections that radius constantly diminishes.

3. rolling mill parallel roll profile backing roll according to claim 1 is characterized in that: transition is a rounded corner between described support roll shaft (1) and the support roll neck (2).

4. rolling mill parallel roll profile backing roll according to claim 1, it is characterized in that: backing roll scribbles antirust oil reservoir outward.

5. rolling mill parallel roll profile backing roll according to claim 1 is characterized in that: roller end (4) is 3:10 with the diameter ratio that supports roll shaft (1).