CN203900420U - Cooling roller with novel inner core structure - Google Patents

Abstract

The utility model discloses a cooling roller with a novel inner core structure. The cooling roller comprises a copper sleeve, an inner core and two cover plates. The two cover plates are fixedly connected to the two ends of an opening of the copper sleeve respectively, and matched with the copper sleeve to form a closed space used for containing the inner core. The cooling roller further comprises a main shaft which penetrates through the two cover plates and the center of the inner core. The inner core is of a cylinder structure. The outer peripheral face, facing the copper sleeve, of the inner core is provided with more than two flanges. The flanges extend around the outer peripheral face of the inner core in a spiral mode from one end of the inner core to the other end of the inner core. A plurality of flanges are arranged correspondingly to form a multi-head spiral channel for cooling water to pass through. When the copper sleeve rotates at a high speed, the spiral flanges stir water of the inner surface of the copper roller, the defect that laminar flow exists between the inner surface of the copper roller and the circulating water can be overcome, the cooling capacity of the copper roller can be improved, and the quality of amorphous strips can be ensured.

Description

A kind of chill roll with Novel inner core structure

Technical field

The utility model relates to a kind of chill roll, is specifically related to a kind of amorphous alloy Cast Strip equipment chill roll with Novel inner core structure used that is applicable to, and belongs to heat transfer technology field.

Background technology

Non-crystaline amorphous metal is to develop in the world in recent decades novel-section very popular and that have a strategic meaning one of to be, in prior art, non-crystaline amorphous metal adopts flash set technology equipment conventionally, be cast on the cooling body of continuous motion or in cooling fluid alloy molten solution rapid solidification and form amorphous alloy by nozzle by the alloy molten solution of special component.The planar flow casting technology for making of amorphous alloy, be widely used in the production process of amorphous alloy ribbon, in amorphous alloy planar flow casting manufacturing apparatus has, cooling body is one of important component part of equipment, the cooling capacity of cooling body directly affects the Performance and quality of amorphous band, in the planar flow casting carrying device of amorphous alloy, the cooling body being widely adopted is the copper roller that adopts circulating water, in the time that alloy molten solution is cast in the outer surface of water-cooled copper roller by nozzle, because copper has larger heat-conducting system, make the heat of alloy molten solution conduct the inner surface that passes to rapidly copper roller by heat, the inner surface of copper roller has cooling water to pass through, therefore heat is recycled cooling water and takes away.

The preparation technology of amorphous band requires strict to chill roll surface temperature, because roll surface directly contacts with motlten metal, determining cooling velocity and the Forming Quality of metal, generally, the heat discharging in the time that motlten metal solidifies can not reach inner surface by cooling roller shell outer surface and the water that is cooled is taken away in time, will cause roller shell surface temperature to raise, the cooling velocity of molten metal declines, and finally can not get amorphous structure.Therefore, optimize the structure of chill roll, adjusting process parameter, is controlled at chill-roll temperature field in uniform temperature value, has great importance to obtaining high-quality amorphous alloy band.

Chinese patent literature CN103418764A discloses a kind of cooling roller device of producing amorphous nanocrystalline soft magnetic material, it mainly comprises roller matrix, roller shell, two cover plates and main shaft, main shaft is provided with roller matrix, roller matrix cylindrical side is provided with roller shell, roller matrix both sides are respectively equipped with two cover plates, and be connected by roller shell, two cover plate neighborings are provided with the bulge loop matching with roller shell, roller matrix cylindrical central area is provided with annular boss, roller shell inner surface central area is placed with spirality tank, the boss periphery laminating of spirality tank end face and roller matrix forms spirality flow of cooling water passage, two symmetrical equidistantly flow of cooling water passages of stairstepping annular about roller shell inner surface outside surrounds jointly with two cover plates and roller matrix periphery.On the inner surface of the roller shell of this chill roll, be provided with inside spin structure, its roller shell processing and manufacturing difficulty, the waste of copper roll material; In addition, above-mentioned helical structure is single-screw passage, its water velocity is relatively slow, monosymmetric stairstepping circular passage, in the time that rotating, chill roll can form eddy current, be unfavorable for passing through of cooling water, and water velocity slows down and easily make the temperature difference of chill roll intake-outlet increase, affect the quality of amorphous band.

Utility model content

For solving the roller shell processing and manufacturing difficulty of chill roll in prior art, and in the cooling water process of circulation, easily form eddy current, be unfavorable for the problem that cooling water passes through, and then provide a kind of cooling capacity high, manufacture craft simply has the chill roll of Novel inner core structure.

For this reason, the scheme that the utility model is taked is,

Have a chill roll for Novel inner core structure, comprise copper sheathing, inner core and two cover plates, described two cover plates are fixedly connected on respectively the opening two ends of described copper sheathing and coordinate with described copper sheathing and form one for holding the enclosure space of described inner core; Also comprise a main shaft, the center that described main shaft runs through described two cover plates and described inner core arranges, and offers cooling water flow circulation passage in described main shaft; Wherein said inner core is cylindrical structure, described inner core is provided with more than 2 fins on the outer peripheral face of described copper sheathing, described fin is spirally extended to the other end of described inner core around the outer peripheral face of described inner core from one end of described inner core, multiple described fin correspondences arrange and form the multi-head spiral passage that cooling water passes through.

In the above-mentioned chill roll with Novel inner core structure, the pitch of described multi-head spiral passage is 15-25mm.

In the above-mentioned chill roll with Novel inner core structure, described fin is 2-5mm along described inner core width radially, described fin along described inner spindle to width be 4-8mm.

In the above-mentioned chill roll with Novel inner core structure, described fin is 5mm along described inner core width radially, described fin along described inner spindle to width be 5mm, the pitch of described multi-head spiral passage is 20mm.

In the above-mentioned chill roll with Novel inner core structure, described inner core is provided with 4 fins on the outer peripheral face of described copper sheathing, and the top of 4 described fins is evenly distributed on the same circumference of outer peripheral face of described inner core.

In the above-mentioned chill roll with Novel inner core structure, there is space at the terminal of described fin and top respectively and between the two edges of described inner core.

In the above-mentioned chill roll with Novel inner core structure, described fin and described inner core are wholely set, and described fin contacts with described copper sheathing.

Compared with prior art, the utlity model has following advantage,

(1) copper sheathing of the present utility model is under High Rotation Speed, spirality fin is to being attached to the water generates agitaion of copper roller inner surface, and then overcome the laminar flow phenomenon existing between copper roller inner surface and recirculated water, and strengthen the cooling capacity of copper roller, guarantee the quality of amorphous band.

(2) chill roll of the present utility model, the large helical pitch of described multi-head spiral passage, the structure of fine pitch have shortened passing through the time of cooling water, reduced the temperature of outlet cooling water, the temperature difference of having dwindled cold action roller intake-outlet, ensures the degree of supercooling of amorphous moulding better.

(3) chill roll of the present utility model, described helical duct be multi-head spiral, make, under prerequisite that the large helical pitch of helical duct arranges, to ensure enough heat exchange areas, ensure the degree of supercooling of amorphous moulding.

(4) chill roll of the present utility model, described helical duct is arranged in interior core outer surface, and when conventional machined is manufactured, moulding is easy, saves the use of copper sheathing material.

Brief description of the drawings

For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below

Fig. 1 is the structural representation of chill roll described in the utility model;

Fig. 2 is the cross-sectional schematic of chill roll described in the utility model;

Fig. 3 is helical duct schematic diagram described in the utility model;

Fig. 4 is the set-up mode schematic diagram of 2 fins of the utility model.

In figure, Reference numeral is expressed as: 1-main shaft, 2-right cover plate, 3-inner core, 4-copper sheathing, 5-left cover, 6-fin.

Detailed description of the invention

A kind of chill roll with Novel inner core structure as illustrated in fig. 1 and 2, comprise copper sheathing 4, inner core 3, left cover 5 and right cover plate 2, left and right cover plate is fixedly connected on respectively the opening two ends of described copper sheathing 4 and coordinates with described copper sheathing 4 and forms one for holding the enclosure space of described inner core 3; Also comprise a main shaft 1, the center that described main shaft runs through two cover plates and described inner core arranges, and offers cooling water flow circulation passage in described main shaft; Wherein, described inner core 3 is cylindrical structure, described inner core 3 is provided with 2 fins on the outer peripheral face of described copper sheathing 4, described fin is spirally extended to the other end of described inner core around the outer peripheral face of described inner core from one end of described inner core, 2 described fin correspondences arrange and form two helical duct (as shown in Figures 3 and 4) that cooling water passes through.In the present embodiment, described fin is 5mm along described inner core width radially, described fin along described inner spindle to width be 5mm, the pitch of described twin-feed spiral passage is 20mm, helical pitch is 40mm.

As alternative embodiment, most preferably, described inner core is provided with 4 fins on the outer peripheral face of described copper sheathing, and the top of 4 described fins is evenly distributed on the same circumference of outer peripheral face of described inner core.

On the basis of above-mentioned embodiment, there is space at the terminal of described fin and top respectively and between the two edges of described inner core.

On the basis of above-mentioned embodiment, described fin and described inner core are wholely set, and described fin contacts with described copper sheathing.

In other embodiments, described fin can arrange 3,5 or more, and described pitch can be 15mm, 18mm, 22mm or other value, be preferably arranged in the scope of 15-25mm,

Described fin along described inner core width radially can be 2mm, 3mm or other value as long as in the scope of 2-5mm, described fin along described inner spindle to width can be that 4mm, 7mm or other value need only being in the scope of 4-8mm.

Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And the apparent variation of being extended out thus or variation are still among protection domain of the present utility model.

Claims (7)

1. have a chill roll for Novel inner core structure, comprise copper sheathing, inner core and two cover plates, described two cover plates are fixedly connected on respectively the opening two ends of described copper sheathing and coordinate with described copper sheathing and form one for holding the enclosure space of described inner core;

Also comprise a main shaft, the center that described main shaft runs through described two cover plates and described inner core arranges, and offers cooling water flow circulation passage in described main shaft;

It is characterized in that,

Described inner core is cylindrical structure, described inner core is provided with more than 2 fins on the outer peripheral face of described copper sheathing, described fin is spirally extended to the other end of described inner core around the outer peripheral face of described inner core from one end of described inner core, multiple described fin correspondences arrange and form the multi-head spiral passage that cooling water passes through.

2. the chill roll with Novel inner core structure according to claim 1, is characterized in that,

The pitch of described multi-head spiral passage is 15-25mm.

3. the chill roll with Novel inner core structure according to claim 2, is characterized in that, described fin is 2-5mm along described inner core width radially, described fin along described inner spindle to width be 4-8mm.

4. the chill roll with Novel inner core structure according to claim 3, is characterized in that,

Described fin is 5mm along described inner core width radially, described fin along described inner spindle to width be 5mm, the pitch of described multi-head spiral passage is 20mm.

5. the chill roll with Novel inner core structure according to claim 4, is characterized in that, described inner core is provided with 4 fins on the outer peripheral face of described copper sheathing, and the top of 4 described fins is evenly distributed on the same circumference of outer peripheral face of described inner core.

6. according to the chill roll with Novel inner core structure described in claim 4 or 5, it is characterized in that, there is space at the terminal of described fin and top respectively and between the two edges of described inner core.

7. the chill roll with Novel inner core structure according to claim 6, is characterized in that, described fin and described inner core are wholely set, and described fin contacts with described copper sheathing.