CN205662541U - Novel water cooling roller - Google Patents

Abstract

Novel water cooling roller, including roll body, roller and water -cooled tube, the roll body setting in the roller outside to it is spacing fixed through locating piece and locating pin, roll body " 8 " style of calligraphy structure for containing two cavitys, the water -cooled tube be located inside the roller to it is fixed through the supporting shoe centre gripping, the water -cooled tube on be provided with delivery port and water inlet, it forms the backward flow to communicate with each other with two cavitys of roll body respectively. The utility model discloses, in order to prevent that water cooling roller from being burnt the curved damage that causes under the high temperature condition, at the inside core pipe that adds of water cooling roller to lead to with circulative cooling, make it normally to work under the high temperature condition. And the roll body adopts " 8 " the style of calligraphy structure that contains two cavitys to it has the cooling water to lead to, plays cooling and protection's effect, thereby has prolonged the utility model discloses a life.

Description

Water cooling roller

Technical field

This utility model relates to cold rolled continuous annealing stove parts, particularly with regard to a kind of water cooling roller.

Background technology

Cold-reduced silicon steel mill continuous annealing unit is divided into preheating section, bringing-up section, soaking zone and pressure cooling section, water cooled rolls at present Applying in bringing-up section, technological requirement temperature is at 1000-1200 DEG C, and water cooled rolls plays a supportive role in bringing-up section stove.Due to operating mode Inclement condition, calorific intensity requires height, and the body of roll is easily generated the other defects such as bending, affects stability that steel plate carries in stove and hits The serious accident of furnace wall happens occasionally, and the roller buckling problem of especially middle high-temperature heating section is of common occurrence, because furnace roller bending causes Scrap the ratio accounted at a relatively high.

China Patent Publication No. is a kind of water-cooling roller of normalizing furnace of CN 101974675 A, including hollow axle and roller shell, institute Stating roller shell and be placed on the outer ring in the middle part of hollow axle, arrange swivel joint in one end of hollow axle, the other end of hollow axle is spindle nose, It is characterized in that: arrange spiral guide blade in described hollow axle, it arranges spiral guide blade in hollow axle, although Ke Yigai Kind water flows through the temperature difference in interior cross section, hollow axle local, eliminates to a certain extent because radial temperature difference causes axial bending.But by Working under 1000-1200 DEG C of hot conditions in water cooled rolls, cooling circulating water is in the internal long-time fouling of core pipe in addition, holds very much Easily cause the blocking of helical blade gap, current not smooth, make water cooled rolls burn curved and damage.On the other hand due to water cooled rolls internal helicoid Blade is individual blade spot welded type, and the most vibrated with under the impact of the pressure of cooling circulating water, solder joint easily ftractures, and makes Becoming part helix blade to distort to come off, owing to water cooled rolls internal helicoid blade space is narrow and small, the helical blade come off is easy to block up Plug helical blade gap, causes current not smooth and causes water cooled rolls high temperature failure.

Summary of the invention

For the drawbacks described above overcoming existing apparatus to exist, technical problem to be solved in the utility model is to provide one Can effectively prevent the water cooling roller that the internal blocking of core pipe, water cooled rolls damage.

Technical problem to be solved in the utility model realizes by the following technical solutions, water cooling roller, including Roll body, roll shaft and water cooling tube, described roll body is arranged on outside roll shaft, and spacing fixing by locating piece and alignment pin, Described roll body is " 8 " font structure comprising two cavitys；Described water cooling tube is positioned at inside roll shaft, and is pressed from both sides by a bracer Hold fixing, described water cooling tube is provided with outlet and water inlet, communicate formation backflow respectively with two cavitys of roll body.

As optimization, described roll body two cavity angle β=140 °.

This utility model, curved causes damage to prevent water cooled rolls from being burnt under the high temperature conditions, adds one inside water cooled rolls Core pipe, and pass to circulating cooling, it is allowed to the most normally work.And roll body uses " 8 " font comprising two cavitys Structure, and it is connected with cooling water, play the effect of cooling protection, thus extend service life of the present utility model.

Accompanying drawing explanation

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

In figure, 4 bracer 5 blind flange 6 locating piece 7 alignment pin 8 outlets 9 of 1 roll body 2 roll shaft 3 water cooling tube are intake Mouthful.

Detailed description of the invention

The utility model is described in further detail below in conjunction with the accompanying drawings, but not as to restriction of the present utility model:

Water cooling roller, including roll body 1, roll shaft 2 and water cooling tube 3, described roll body 1 is arranged on outside roll shaft 2, and leads to Crossing locating piece 6 and alignment pin 7 is spacing fixing, described roll body 1 is " 8 " font structure comprising two cavitys；Described water It is internal that cold pipe 3 is positioned at roll shaft 2, and is gripped by a bracer 4, and described water cooling tube 3 is provided with outlet 8 and water inlet 9, formation backflow is communicated respectively with two cavitys of roll body 1,

As optimization, 1 liang of cavity angle β=140 ° of described roll body.

This utility model, curved causes damage to prevent water cooled rolls from being burnt under the high temperature conditions, adds one inside water cooled rolls Core pipe, and pass to circulating cooling, it is allowed to the most normally work.And roll body 1 uses " 8 " font comprising two cavitys Structure, and it is connected with cooling water, the heat of roll body 1 can be delivered to rapidly cool down in water, plays the effect of cooling protection, thus extends Service life of the present utility model.

Above-described embodiment of the present utility model, only clearly demonstrates the citing that this utility model is done, but is not used to Limiting protection domain of the present utility model, the technical scheme of all equivalents falls within category of the present utility model, this utility model Scope of patent protection should be limited by every claim.

Claims (2)

1. water cooling roller, including roll body (1), roll shaft (2) and water cooling tube (3), it is characterised in that: described roll body (1) sets Put in roll shaft (2) outside, and spacing fixing by locating piece (6) and alignment pin (7), and described roll body (1) is for comprising two " 8 " font structure of cavity；It is internal that described water cooling tube (3) is positioned at roll shaft (2), and is gripped by a bracer (4), described Water cooling tube (3) on be provided with outlet (8) and water inlet (9), communicate formation backflow respectively with two cavitys of roll body (1).

Water cooling roller the most according to claim 1, it is characterised in that: described roll body (1) two cavity angle β=140 °.