CN202187031U - Metal roller - Google Patents

Abstract

The utility model discloses a metal roller, comprising a metal sleeve and a roller shaft, wherein a water cooling channel is arranged in the roller shaft; the water cooling channel and the roller shaft are coaxial; the inner diameter of the water cooling channel is smaller than a half of the minimum inner diameter of the cross section of the roller shaft. The metal roller provided by the utility model has a simple structure and can prolong the working time of the roller shaft, reduce deformation of the metal roller and raise the production efficiency.

Description

A kind of metallic roll

Technical field

The utility model relates to metallic roll, relates in particular to a kind of metallic roll with refrigerating function.

Background technology

Need to use metallic roll in the vertical annealing furnace that uses in the cold-rolling stainless steel steel band field; Metallic roll is in the transition chamber of stove fire temperature up to 400 ℃ to 700 ℃; Existing solid metal roller is after the use of for some time; Can produce high temperature deformation,, have a strong impact on producing to produce to such an extent as to damage metallic sheath.

The utility model content

Goal of the invention: in order to overcome the deficiency that exists in the prior art, the utility model provides a kind of metallic roll that has refrigerating function.

Technical scheme: for solving the problems of the technologies described above, the technical scheme of the utility model sampling is:

A kind of metallic roll comprises metallic sheath and roll shaft, is provided with cooling-water duct in the said roll shaft, and said cooling-water duct is coaxial with roll shaft, and the internal diameter of this cooling-water duct half the less than roll shaft minimum cross-section internal diameter.

During work, make the cooling-water duct of cooling-water flowing in roll shaft, can effectively reduce the working temperature of roll shaft, reduce the Deformation velocity of roll shaft, prolong its working hour, avoid metallic sheath is produced infringement.

Beneficial effect: the metallic roll that the utility model provides, simple in structure, can prolong working hour of roll shaft, reduce the distortion of metallic roll, enhance productivity.

Description of drawings

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

Embodiment

Below in conjunction with accompanying drawing the utility model is done explanation further.

Be depicted as a kind of metallic roll like accompanying drawing 1 and comprise metallic sheath 1 and roll shaft 2, be provided with cooling-water duct 3 in the said roll shaft 2, said cooling-water duct 3 is coaxial with roll shaft 2, and the internal diameter of this cooling-water duct 3 is less than half of roll shaft 2 minimum cross-section internal diameters.

The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims (1)

1. metallic roll; It is characterized in that: this metallic roll comprises metallic sheath (1) and roll shaft (2); Be provided with cooling-water duct (3) in the said roll shaft (2); Said cooling-water duct (3) is coaxial with roll shaft (2), and the internal diameter of this cooling-water duct (3) half the less than roll shaft (2) minimum cross-section internal diameter.

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