CN201338010Y

CN201338010Y - Compound rubber roll

Info

Publication number: CN201338010Y
Application number: CNU2009200665480U
Authority: CN
Inventors: 任超; 王亮; 王锗; 曾小利
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-06
Filing date: 2009-01-06
Publication date: 2009-11-04
Anticipated expiration: 2019-01-06

Abstract

The utility model relates to a compound rubber roll and belongs to the field of cold-rolled plates; the compound rubber roll comprises a hard layer and a soft layer; the soft layer is coated at the periphery of the hard layer; the compound rubber roll comprises a left hard layer, a middle hard layer and a right hard layer; the left hard layer is connected with the left end of the middle hard layer, the right hard layer is connected with the right end of the middle hard layer, and the diameter of any section which is vertical to the axis of the left hard layer and the right hard layer is less than the diameter of the section of the middle hard layer. By changing the structures at two ends of the hard layer, the thickness of the soft layer of a contact area of the compound rubber roll and the edge of a metal band is increased, thereby reducing the rigidity of the area, reducing high stress of the area owning to edge effect, improving the fatigue lifetime of the area and leading the whole service life of the compound rubber roll to be prolonged.

Description

A kind of Compound rubber roller

Technical field

The utility model relates to a kind of Compound rubber roller, is applicable to the cold-rolled steel sheet field.

Background technology

The Compound rubber roller that is suitable in the cold-rolled steel sheet production at present is made up of the wear-resistant soft layer of hard layer and coating hard layer periphery, hard layer is hollow metal-cored, be used to strengthen the rigidity of rubber roll, its two ends are by bearings, soft layer is the hollow cylinder structure, and its material is natural rubber, acrylonitrile-butadiene rubber, polyurethane, nylon or other composite high-molecular material, and soft layer directly contacts with cold-rolled steel sheet, the soft scratch surface of steel plate that prevents of its matter influences plate surface quality.Compound rubber roller is in support, when transmitting steel band, its length is greater than the width of steel band, therefore the soft layer of rubber roll two ends and steel plate EDGE CONTACT inevitably exists boundary stress to concentrate, that is: so-called " edge effect ", " edge effect " makes and the soft layer appearance fatigue wear early at rubber roll two ends makes the life-span of Compound rubber roller integral body reduce greatly.

Summary of the invention

The purpose of this utility model provides a kind of Compound rubber roller that can solve the new structure of " edge effect ", its structure comprises hard layer and soft layer, soft layer is coated on the hard layer periphery, wherein, hard layer comprises left hard layer, middle hard layer and right hard layer, left side hard layer connects with middle hard layer left end, and right hard layer connects with middle hard layer right-hand member, and the external diameter of the arbitrary section of left hard layer and right hard layer vertical axis is less than the external diameter in middle hard layer cross section.Wherein, left hard layer and right hard layer are the cylinder with holes or the round platform of round platform or cydariform side, perhaps are above-mentioned assembly.The axial length of left side hard layer and right hard layer accounts for one of percentage of Compound rubber roller total length respectively to 40 percent.

The utility model is to use like this, the edge of steel plate broad ways be positioned at described left hard layer or right hard layer directly over.So-called " edge " is meant 3 percent to 10 of steel plate integral width.

The beneficial effects of the utility model are: by changing the structure at Compound rubber roller hard layer two ends, strengthened the soft layer thickness of Compound rubber roller and steel band edge contact area, thereby reduced should the zone rigidity, reduced should the zone because of " edge effect " produce heavily stressed, improved should the zone fatigue life, make the whole service life of Compound rubber roller to have obtained prolongation.

Description of drawings

Fig. 1 is the structural representation of first embodiment of Compound rubber roller of the present utility model.

Fig. 2 is the structural representation of second embodiment of Compound rubber roller of the present utility model.

Fig. 3 is the structural representation of the 3rd embodiment of Compound rubber roller of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is elaborated.

With reference to Fig. 1, this Compound rubber roller comprises hard layer 1 and soft layer 2, soft layer 2 is coated on hard layer 1 periphery, hard layer 1 comprises left hard layer 11, middle hard layer 12 and right hard layer 13, left side hard layer 11 connects with middle hard layer 12 left ends, right hard layer 13 connects with middle hard layer 12 right-hand members, and the external diameter of the arbitrary section of left hard layer 11 and right hard layer 13 vertical axis is less than the external diameter in middle hard layer cross section.Wherein, left hard layer 11 and right hard layer 13 are cylinder with holes, and the axial length of left hard layer 11 and right hard layer 13 accounts for 1 15 of Compound rubber roller total length respectively.

In the present embodiment, Compound rubber roller is like this work, and its two ends hard layer connects with bearing 4 respectively, and steel plate 3 is positioned at the top of Compound rubber roller, the edge of its broad ways lay respectively at described left hard layer 11 and right hard layer 13 directly over.When rubber roll rolls, realized that just the support of steel plate 3 transmits.

In addition, with reference to Fig. 2 and Fig. 3, the left hard layer 11 of Compound rubber roller and right matter layer 13 are except that structure described in first embodiment, can also form by round platform with holes and cylinder, as shown in Figure 2, even for holes and side is that the stage body and the cylinder of cydariform formed, as shown in Figure 3.

Compound rubber roller is by changing the structure at its hard layer two ends, strengthened the soft layer thickness of Compound rubber roller and steel band edge contact area, thereby reduced should the zone rigidity, reduced should the zone because of " edge effect " produce heavily stressed, improved should the zone fatigue life, make the whole service life of Compound rubber roller to have obtained prolongation.

Though the utility model is announced as above with preferred embodiment; yet it is not in order to limit the utility model; anyly be familiar with one of ordinary skill in the art; in not breaking away from spirit and scope of the present utility model; should make the variation or the replacement of all equivalences; therefore, protection domain of the present utility model is as the criterion when looking accompanying the scope that the application's claim defined.

Claims

1, a kind of Compound rubber roller, comprise hard layer and soft layer, soft layer is coated on the hard layer periphery, it is characterized in that: hard layer comprises left hard layer, middle hard layer and right hard layer, left side hard layer connects with middle hard layer left end, right hard layer connects with middle hard layer right-hand member, and the external diameter of the arbitrary section of left hard layer and right hard layer vertical axis is less than the external diameter in middle hard layer cross section.

2, Compound rubber roller according to claim 1 is characterized in that: left hard layer and right hard layer are the cylinder with holes or the round platform of round platform or cydariform side, perhaps are above-mentioned assembly.