阅读说明：本技术 一种双金属复合轧制用轧辊 (Roller for bimetal composite rolling ) 是由 朱卫 张忠 李鹏飞 于 2021-08-10 设计创作，主要内容包括：本发明公开了一种双金属复合轧制用轧辊,其包括一对轴线平行的轧辊,所述轧辊分别为主轧辊和辅助轧辊,在主轧辊上设有与其同心的环槽。环槽的槽底为圆环面,环槽为上宽下窄的结构,环槽的两侧面对称设置,侧面由垂直于圆环面的垂直圆环面段和与垂直圆环面段构成夹角的倾斜圆环面段组合而成,或者由与圆环面构成倾斜夹角的倾斜圆环面段和与圆环段垂直的垂直圆环面段组合而成,又或者为与主轧辊轴线构成倾斜夹角的倾斜面,倾斜夹角为84～86°。轧制双金属工件时,主轧辊的环槽用于保证工件的宽度尺寸,倾斜圆环面段使得工件容易脱模。解决了使用四辊式轧机轧制时,宽度尺寸不易保证的问题,以及因侧压辊压紧程度不足工件产生飞边或毛刺的问题。(The invention discloses a roller for bimetal composite rolling, which comprises a pair of rollers with parallel axes, wherein the rollers are respectively a main roller and an auxiliary roller, and a ring groove concentric with the main roller is arranged on the main roller. The tank bottom of annular is the torus, the annular is narrow structure under wide, the bilateral symmetry of annular sets up, the side is formed by the perpendicular torus section of perpendicular to torus and the slope torus section combination that constitutes the contained angle with perpendicular torus section, or by the slope torus section that constitutes the slope contained angle with the torus and form with the perpendicular torus section combination of torus vertically, or for constituting the inclined plane of slope contained angle with the main roll axis again, the slope contained angle is 84 ~ 86. When rolling a bimetallic workpiece, the ring groove of the main roller is used for ensuring the width dimension of the workpiece, and the inclined torus section enables the workpiece to be easily demoulded. The problem of when using four high rolling mill to roll is solved, the difficult assurance of width size to and because of the not enough overlap or the burr of work piece production of side pressure roll compression degree.)

1. A roller for bimetal composite rolling comprises a pair of rollers with parallel axes, and is characterized in that: the rollers are respectively a main roller and an auxiliary roller, and the main roller is provided with a ring groove concentric with the main roller; the bimetal composite board is an aluminum alloy-steel plate composite board, the aluminum alloy is positioned at the bottom of the tank, and the steel plate is positioned on the aluminum alloy.

2. The roll for bimetal compound rolling according to claim 1, characterized in that: the tank bottom of annular is the torus, and the annular is narrow structure under wide, and the bilateral symmetry of annular sets up, and the side forms by the perpendicular torus section of perpendicular to torus and the slope torus section combination that constitutes the slope contained angle with perpendicular torus section, or forms by the slope torus section that constitutes the slope contained angle with the torus and with the perpendicular torus section combination of torus vertically, perhaps only for the slope torus section again.

3. The roll for bimetal compound rolling according to claim 2, characterized in that: the inclined included angle is 84-86 degrees.

4. The roll for bimetal compound rolling according to claim 3, characterized in that: the main roller comprises a roller core and a roller sleeve sleeved on the roller core.

5. The roll for bimetal compound rolling according to claim 4, characterized in that: the roller sleeve comprises a side roller sleeve and a middle roller sleeve, and the ring groove is formed by combining the side roller sleeve and the middle roller sleeve.

6. The roll for bimetal compound rolling according to claim 4, characterized in that: the roller sleeve is of an integral structure, and the annular groove is formed in the roller sleeve.

7. The roll for bimetal cladding rolling according to any one of claims 4 to 6, characterized in that: the roller sleeve is connected with the roller core through a single key or a spline, and the roller core is provided with clamp springs positioned at two ends of the roller sleeve, or the roller core is provided with a shaft shoulder positioned at one end of the roller sleeve and a clamp spring positioned at the other end of the roller sleeve.

8. The roll for bimetal cladding rolling according to any one of claims 4 to 6, characterized in that: the roller sleeve is connected with the roller core through threads, and the roller core is provided with tightening nuts positioned at two ends of the roller sleeve, or the roller core is provided with a shaft shoulder positioned at one end of the roller sleeve and a tightening nut positioned at the other end of the roller sleeve.

9. The roll for bimetal cladding rolling according to any one of claims 1 to 6, characterized in that: the auxiliary roller is provided with an annular bulge matched with the top of the ring groove.

Technical Field

The invention relates to a roller for rolling, in particular to a roller for bimetal composite rolling.

Background

The traditional bimetal composite rolling is a processing method for firmly combining two metals with different physical and chemical properties with each other on the whole contact surface through rolling. In the example of steel plate-aluminum alloy composite rolling, when a four-work-roll rolling mill is used for rolling, in order to avoid damage to the rolling mill caused by excessive friction force, the side pressure roll cannot press the side surface of the work roll, and the width dimension of a workpiece is not easy to guarantee. When the lateral pressure roller is not tight enough or the size deviation of the raw material is large, the aluminum alloy in the width direction is easy to generate flash, the steel plate is easy to generate burrs, the defects need to be treated in the subsequent production, and the cost is greatly increased.

CN102671937B discloses an active precision four-high mill, which comprises a driving roll and a driven roll, wherein a hole pattern is formed between the driving roll and the driven roll. Due to insufficient compression degree of the driven roller, the width direction of the workpiece is easy to generate defects such as flash, burr and the like.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a roller for bimetal composite rolling, which can ensure the width dimension of a workpiece and avoid the defects of flash, burr and the like generated in the width direction.

In order to achieve the purpose, the technical scheme of the invention is to provide a roller for rolling bimetal composite, which comprises a pair of rollers with parallel axes, wherein the rollers are respectively a main roller and an auxiliary roller, the main roller is provided with a ring groove concentric with the main roller, the bimetal composite plate is an aluminum alloy-steel plate composite plate, an aluminum alloy is positioned at the bottom of the groove, and a steel plate is positioned on the aluminum alloy. The annular groove is used for ensuring the width size of a workpiece, the hardness of the aluminum alloy is smaller than that of the steel plate, and the steel plate is placed on the aluminum alloy, so that the generation of flash and burrs can be obviously reduced.

A further technical scheme is, the tank bottom of annular is the torus, and the annular is narrow structure under the width, and the bilateral symmetry of annular sets up, and the side is formed by the perpendicular torus section of perpendicular to torus and the slope torus section combination that constitutes the slope contained angle with perpendicular torus section, or by the slope torus section that constitutes the slope contained angle with the torus and form with the perpendicular torus section combination of ring section vertically, perhaps for constituting the inclined plane of slope contained angle with the main roll axis again. The setting of slope toroidal section and inclined plane helps the drawing of patterns after the work piece processing is accomplished.

Furthermore, the included angle between the inclined circular ring section and the axis of the main roller is 84-86 degrees, and the demolding is easier due to the adoption of the included angle.

The further technical scheme is that the main roller comprises a roller core and a roller sleeve sleeved on the roller core. By adopting the structure, the roller core can be replaced when the surface of the roller core is defective, and the roller core can be made of a material with better surface performance, so that the roller core is more economical.

Preferably, the roller sleeve comprises a side roller sleeve and a middle roller sleeve, and the ring groove is formed by combining the side roller sleeve and the middle roller sleeve. By adopting the structure, the side roller sleeves and the middle roller sleeves with different specifications are sleeved, so that the size of the ring groove can be adjusted, and workpieces with different sizes can be rolled.

The further technical scheme is that the roller sleeve is connected with the roller core through a single key or a spline, and the roller core is provided with clamp springs positioned at two ends of the roller sleeve, or the roller core is provided with a shaft shoulder positioned at one end of the roller sleeve and a clamp spring positioned at the other end of the roller sleeve. The single key or the spline ensures that the roller core and the roller sleeve do not rotate relatively in the circumferential direction, and the roller sleeve is convenient to assemble and disassemble on the roller core. The shaft shoulder and the clamp spring enable the roller sleeve not to slide on the roller core axis.

The further technical scheme is that the roller sleeve is in threaded connection with the roller core, and the roller core is provided with tightening nuts positioned at two ends of the roller sleeve, or the roller core is provided with a shaft shoulder positioned at one end of the roller sleeve and a tightening nut positioned at the other end of the roller sleeve. The roller sleeve is assembled and disassembled on the roller core by utilizing threaded connection, and the roller sleeve does not slide on the roller core axis due to the arrangement of the fastening nut and the roller sleeve.

The further technical proposal is that the auxiliary roller is provided with an annular protrusion matched with the top of the ring groove. By adopting the structure, burrs of the workpiece caused by the gap between the main roller and the auxiliary roller are effectively avoided.

Adopt bimetal is compound rolls for rolling, when rolling bimetal work piece, the annular of main roll is used for guaranteeing the width size of work piece, and the slash of annular side makes the work piece easy demoulding, arranges the steel sheet on the aluminum alloy and can show the production that reduces overlap and burr. The problem of when using four high rolling mill to roll is solved, the width size is difficult for guaranteeing to and because of the not enough problem that produces overlap or burr of work piece of side pressure roll compression degree, above defect needs to handle in follow-up production, and cost greatly increased, main roll adopts the structure of roller core and the roller shell of suit on the roller core for the roller core surface appears the defect and can changes, also can prefer the material preparation roller core that surface property is more excellent, and is more economical. The ring groove formed by combining the side roller sleeve and the middle roller sleeve is adopted, so that the size of the ring groove is adjustable, and workpieces with different sizes can be processed.

Drawings

FIG. 1 is a schematic view of example 1 of the present invention;

fig. 2 is a partial enlarged view C of fig. 1;

FIG. 3 is a schematic view of embodiment 2 of the present invention;

fig. 4 is a partial enlarged view B in fig. 3;

FIG. 5 is a schematic view of example 3 of the present invention;

fig. 6 is a partially enlarged view D in fig. 5.

Wherein: 1-main roll 2-auxiliary roll 11-roll core 12-roll sleeve 13-ring groove 21-auxiliary roll core 22-auxiliary roll sleeve 23-ring-shaped protrusion

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1:

as shown in fig. 1, the present invention is a roll for bimetal compound rolling, which includes a pair of rolls having parallel axes, a main roll 1 and an auxiliary roll 2. The main roll 1 comprises a roll core 11 and a roll sleeve 12 sleeved on the roll core. The roller sleeve 12 is connected with the roller core 11 through a spline, and the roller core 11 is provided with a shaft shoulder at one end of the roller sleeve 12 and a clamp spring at the other end of the roller sleeve. The roller sleeve 12 is of an integral structure, and the roller sleeve 12 is provided with a ring groove 13 concentric with the main roller 1. The tank bottom of annular 13 is the torus, and annular 13 is narrow structure under wide, and the bilateral symmetry of annular 13 sets up, and the side is formed by the slope torus section that constitutes the slope contained angle with the torus and the perpendicular torus section combination with torus section vertically, and the side is slope torus section and perpendicular torus section along the radial follow tank bottom of main roll to the groove top in proper order, and the slope contained angle is 84 ~ 86. The auxiliary roller 2 comprises an auxiliary roller core 21 and an auxiliary roller sleeve 22 sleeved on the roller core, the auxiliary roller sleeve 22 is connected with the auxiliary roller core 21 through a spline, a shaft shoulder located at one end of the auxiliary roller sleeve 22 and a clamp spring located at the other end of the auxiliary roller sleeve 22 are arranged on the auxiliary roller core 21, the bimetal composite plate is an aluminum alloy-steel plate composite plate, the aluminum alloy is located at the bottom of the groove, and the steel plate is located on the aluminum alloy.

Example 2:

as shown in fig. 1, the difference from embodiment 1 is that: the roller sleeve 12 comprises a side roller sleeve and a middle roller sleeve, and the ring groove 13 is formed by combining the side roller sleeve and the middle roller sleeve. The tank bottom of annular groove 13 is the torus, and annular groove 13 is narrow structure under wide, and the bilateral symmetry of annular groove 13 sets up, and the side is formed by the perpendicular torus section of perpendicular to torus and the slope torus section combination that constitutes the slope contained angle with perpendicular torus section, and the side is perpendicular torus section and slope torus section along the radial from the tank bottom of main roll to the groove top in proper order, and the slope contained angle is 84 ~ 86. The roller sleeve 12 is connected with the roller core 11 through screw threads, and the roller core 11 is provided with fastening nuts positioned at two ends of the roller sleeve 12. The auxiliary roll 2 is of a unitary construction and is provided with an annular projection 23 which is adapted to the top of the groove.

Example 3:

as shown in figure 1, the difference from the embodiment 1 is that the groove bottom of the ring groove 13 is a circular ring surface, the ring groove 13 is of a structure with a wide upper part and a narrow lower part, two side surfaces of the ring groove 13 are symmetrically arranged, and the side surfaces are inclined surfaces which form an inclined included angle of 84-86 degrees with the axis of the main roller; the auxiliary roller sleeve 22 is connected with the auxiliary roller core 21 through threads, and a shaft shoulder positioned at one end of the auxiliary roller sleeve 22 and a fastening nut positioned at the other end of the auxiliary roller sleeve 22 are arranged on the auxiliary roller core 21.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.