CN210450429U

CN210450429U - Split assembly type roll bending roller

Info

Publication number: CN210450429U
Application number: CN201921006950.XU
Authority: CN
Inventors: 王忠堂; 李艳娟; 杨君宝; 张茂壮
Original assignee: Shenyang Ligong University
Current assignee: Shenyang Ligong University
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-05-05
Anticipated expiration: 2029-07-01

Abstract

The utility model discloses a components of a whole that can function independently assembled roll bending roll belongs to high accuracy magnesium alloy panel production field, roll bending roll includes roll bending roll core (1), straight tooth roll bending roll (2) or vertical tooth roll bending roll (4), bolt (3), straight tooth roll bending roll (2) or vertical tooth roll bending roll (4) are components of a whole that can function independently assembled, straight tooth roll bending roll (2) or vertical tooth roll bending roll (4) are two semicylinder buckles in roll bending roll core (1) outside, and it is fixed with roll bending roll core (1) through bolt (3). The method is applied to the roll bending-rolling composite deformation process of the magnesium alloy plate, can cause the magnesium alloy plate to generate severe tangential deformation, and achieves the purpose of improving the plastic forming performance and the mechanical property of the magnesium alloy material.

Description

Split assembly type roll bending roller

Technical Field

The utility model belongs to high accuracy magnesium alloy panel production field, concretely relates to components of a whole that can function independently assembled rolls bending roll is applied to magnesium alloy panel roll bending-rolling compound deformation technology.

Background

Magnesium and its alloy are the lightest metal structure materials at present, its advantage includes the specific strength is high, the specific stiffness is high, the elastic modulus is large, the damping shock-absorbing performance is good, the thermal conductivity is good, the electromagnetic shielding effect is good, the machinability is good, pollution-free, easy to reclaim, suitable for fields such as space flight and aviation, transportation, electronic communication, consumer electronics, national defense equipment.

The major slip systems in magnesium alloys include basal slip systems, prismatic slip systems, and conical slip systems. During deformation at room temperature, the critical shear stress of prismatic surface slip of the magnesium alloy is far larger than that of basal surface slip, and the magnesium alloy is not easy to start under normal conditions. Therefore, the magnesium alloy has low plastic deformation capability under normal temperature conditions, and the wide application of the magnesium alloy material under special conditions is limited to a great extent. The violent plastic deformation can generate more twin crystal structures, sliding systems and dynamic recrystallization structures, and effectively improve the twin crystal structures and the texture distribution of the magnesium alloy plate in all directions, thereby realizing the purposes of grain refinement and texture weakening of the magnesium alloy material and further improving the structure performance and the mechanical property of the magnesium alloy plate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a components of a whole that can function independently assembled rolls bending roll, straight tooth rolls bending roll or indulges tooth rolls bending roll and is two semicylinder rings to detain in the roll bending roll core outside, and it is fixed with the roll bending roll core through the bolt, is applied to magnesium alloy panel roll bending-rolling compound deformation technology, can make magnesium alloy panel produce violent tangential deformation, realizes improving magnesium alloy material's plasticity formability and mechanical properties's purpose.

The technical scheme is as follows:

the utility model provides a components of a whole that can function independently assembled roll bending roll, roll bending roll includes roll bending roll core, straight tooth roll bending roll or vertical tooth roll bending roll, bolt, straight tooth roll bending roll or vertical tooth roll bending roll are components of a whole that can function independently assembled, straight tooth roll bending roll or vertical tooth roll bending roll are two semicylindrical rings and detain outside roll bending roll core, and it is fixed with roll bending roll core through the bolt.

And the bending tooth direction of the straight tooth bending roll is vertical to the plate rolling direction.

And the bending tooth direction of the longitudinal tooth bending roll is parallel to the plate rolling direction.

And corresponding bolt holes are respectively formed in the upper circle and the lower circle of the straight-tooth roll bending roller or the longitudinal-tooth roll bending roller and the corresponding positions of the roll bending roller core.

The utility model discloses an advantage and effect do:

a split assembly type roll bending roller is suitable for a roll bending-rolling composite deformation process of magnesium alloy plates, and can change a composite deformation coefficient only by replacing roll bending rollers with different roll bending tooth sizes (tooth spacing s and tooth height h), so that the roll bending-rolling composite deformation process with different deformation degrees can be realized, and the structure performance and the mechanical property of the magnesium alloy plates can be improved to different degrees. The two parts of the roll bending roller and the roll bending roller core do not need to be replaced. Reduces the production cost, improves the production benefit and has simple operation.

Drawings

FIG. 1 is an assembly drawing of a split assembly type roll bending roll structure;

FIG. 2 is an exploded view of a split assembly type roll bending roll;

FIG. 3 is a perspective view of a split assembly type straight-tooth roll bending roller;

FIG. 4 is a perspective view of a split assembly type straight-tooth roll bending roll core;

FIG. 5 is a front view of the split assembly type straight-tooth roll bending roll;

FIG. 6 is a side view of a split assembly type straight-tooth roll bending roll;

FIG. 7 is a front view of the split assembly type longitudinal roll bending roll;

FIG. 8 is a side view of a split assembled longitudinal rollforming roll;

FIG. 9 is a front view of a roll core of the roll bending roll assembled in a split manner;

fig. 10 is a side view of a roll core of the roll bending roll in a split assembly type.

The components in the figure: 1 is a roll bending roll core, 2 is a straight-tooth roll bending roll, 3 is a bolt, and 4 is a longitudinal-tooth roll bending roll.

Detailed Description

Roll bending-rolling composite deformation process definition:

the magnesium alloy plate is subjected to hot roll bending deformation (primary deformation) to generate severe tangential deformation, and then subjected to plane rolling deformation (secondary deformation) to generate severe tangential deformation in the opposite direction again, so that the plate is restored to the original surface flatness, and the deformation method is called as a roll bending-rolling composite deformation method.

The technical scheme is that a plane magnesium alloy plate is deformed once by two roll bending rollers which are oppositely arranged up and down, so that the magnesium alloy plate of an initial plane is bent into a corrugated plate (the waveform is vertical to the rolling direction or parallel to the rolling direction), and the corrugated plate is processed. The corrugated plate is subjected to plane rolling deformation through two plane rollers which are oppositely arranged up and down, so that the corrugated plate generates secondary deformation, and the plane plate is processed, namely the roll bending-rolling composite deformation method.

Example 1

The utility model provides a components of a whole that can function independently assembled roll-bending roll, roll-bending roll adopt components of a whole that can function independently assembled structure, and the combination roll-bending roll adopts components of a whole that can function independently assembled straight-tooth roll-bending roll 2, components of a whole that can function independently assembled straight-tooth roll-bending roll core 1, and components of a whole that can function independently assembled straight-tooth roll-bending roll 2 suit make up into the combination roll-bending roll on components of a whole that can function independently assembled roll-bending roll core 1, and two semicircle snap-on straight-tooth roll-bending roll 2 pass through bolt 3 to fix and form the combination roll-bending roll on roll-bending roll core 1, a week and roll-bending roll core corresponding position about the straight-. The combination roll bending rolls were mounted on a rolling mill and rotated at the same angular speed. And then the combined roll bending roll is arranged on a rolling mill to carry out roll bending-rolling composite deformation process. The straight-tooth bending roll is a bending roll, the gear rolling direction of which can be straight teeth, namely the gear rolling direction is vertical to the rolling direction, and the straight-tooth bending roll is shown in fig. 5 and 6.

Example 2

A split assembly type roll bending roller adopts a split assembly type structure, a split assembly type longitudinal tooth roll bending roller 3 is adopted as a combined roll bending roller, the split assembly type longitudinal tooth roll bending roller 3 is sleeved on a split assembly type roll bending roller core 1 to form the combined roll bending roller, two longitudinal tooth roll bending rollers 4 with semicircular buckles are fixed on the roll bending roller core 1 through bolts 3 to form the combined roll bending roller, and the combined roll bending roller is installed on a rolling mill and rotates at the same angular speed. And then the combined roll bending roller 6 is arranged on a rolling mill to carry out roll bending-rolling composite deformation process. The longitudinal gear bending roller 3 is a bending roller, and the gear rolling direction of the longitudinal gear bending roller can be longitudinal gear, namely, the gear rolling direction is parallel to the rolling direction, and the longitudinal gear bending roller is shown in fig. 7 and 8.

According to the requirement of the deformation degree parameters of the roll bending-rolling composite deformation process, the roll bending-rolling composite deformation process with different deformation degrees can be realized by only replacing roll bending rollers with different roll bending tooth sizes (tooth spacing s and tooth height h), and the structure property and the mechanical property of the magnesium alloy plate can be improved to different degrees.

Claims

1. The utility model provides a components of a whole that can function independently assembled roll bending roll, its characterized in that, roll bending roll includes roll bending roll core (1), straight tooth roll bending roll (2) or vertical tooth roll bending roll (4), bolt (3), and the roll bending direction of straight tooth roll bending roll (2) is perpendicular with the rolling direction of panel, and the roll bending direction of vertical tooth roll bending roll (4) is the same with the rolling direction of panel, straight tooth roll bending roll (2) or vertical tooth roll bending roll (4) are components of a whole that can function independently assembled, straight tooth roll bending roll (2) or vertical tooth roll bending roll (4) are two semicylindrical rings and detain at roll bending roll core (1) outside, and are fixed through bolt (3) and roll bending roll core (1).

2. A split-mounting roll bending according to claim 1, wherein the straight-toothed roll bending roll (2) has a roll bending direction perpendicular to the sheet rolling direction.

3. A split-mounting roll bending according to claim 1, wherein the longitudinal bending roll (4) has a bending direction parallel to the rolling direction of the sheet.

4. The split assembly type roll bending roller according to claim 1, wherein corresponding bolt holes are respectively formed in the upper circle and the lower circle of the straight-tooth roll bending roller (2) or the longitudinal-tooth roll bending roller (4) and corresponding positions of the roll bending roller core (1).