Roller with flexibly adjustable roller type curves

A flexible technology for adjusting rolls, applied in the direction of rolls, metal rolling, metal rolling, etc., can solve the problems of inability to carry out quantitative temperature adjustment, difficult to solve the temperature coupling relationship, and no temperature sensor at the heat source, etc., to reach the electric heating temperature Quick response, easy construction, compensation for roll wear effect

Inactive Publication Date: 2012-07-04
YANSHAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the inventors carried out the present invention, they found that both of the above-mentioned methods have the following defects: due to the fact that the different heating areas of the inner hole cannot conduct heat in the radial direction, the radial temperature of each section of the roller body is homogenized along the axial direction, and each section The temperature coupling relationship between them is difficult to solve, there is no temperature sensor at the heat source, and quantitative temperature adjustment cannot be performed

Method used

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  • Roller with flexibly adjustable roller type curves
  • Roller with flexibly adjustable roller type curves
  • Roller with flexibly adjustable roller type curves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The structure of a roll that can flexibly adjust the roll profile curve of this embodiment is as follows: figure 1 and figure 2 As shown, it includes a roll body 2 with a through hole or a stepped concentric hole, a slip ring component 13, a connecting flange 14, bolts 15, a temperature detection and control module, a power supply, k groups of internal expansion driving force components 4 and k ±1 set of adiabatic spacer rings 3, where k is a natural number. In this embodiment, the roll body 2 has a through hole, and the electric thermal expansion rod 9 and the roll body 2 maintain an interference fit.

[0035] The k groups of internal expansion driving force components 4 and k±1 groups of heat insulating distance rings 3 are installed in the through-hole of the roll body 2 at intervals; in this embodiment, static fit is used inside the through-hole of the roll body 2 The internal expansion driving force part 4 is installed in the same way, and multiple sets of heat-...

Embodiment 2

[0053] This embodiment is basically the same as Embodiment 1. The difference between this embodiment and Embodiment 1 is that the electric thermal expansion rod 9 is an end heating (or spiral heating) electric thermal expansion rod, and its structure is as follows Figure 4 As shown, the electrothermal expansion rod 9 is cylindrical in shape with a thick middle and thin ends, and the electrothermal carrier fluid 6 is arranged at the thin ends of the electrothermal expansion rod 9 .

Embodiment 3

[0055] This embodiment is basically the same as Embodiment 1. The difference between this embodiment and Embodiment 1 is that the electric thermal expansion rod 9 is a spiral columnar heating (or core heating) electric thermal expansion rod, and its structure is as follows Figure 5 As shown, the electric thermal expansion rod 9 is a stud or an interference fit casing with spiral grooves distributed on the surface, and the electric heat transfer fluid 6 is arranged in the spiral groove.

[0056] As can be seen from the above examples, the present invention has the following beneficial effects:

[0057] (1) In the present invention, by heating the electric thermal expansion rod that is interference-fitted in the through-hole of the roll body, the electric thermal expansion rod generates internal expansion driving force, and the roll profile curve is pre-controlled and online according to the roll profile control requirements. Adjustment, and through temperature detection and si...

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PUM

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Abstract

The invention discloses a roller with flexibly adjustable roller type curves. A plurality of groups of electric heating temperature control expansion rods are mounted inside a through hole of a roller body by means of stationary fit, and the electric heating temperature control expansion rods generate radial expansion deformation and form internal expansion driving force by directly using inductance heat (or resistance heat), so that the roller body is driven to radially deform. A heat-insulation distance ring is mounted between each two electric heating temperature control expansion rods, so that heat flow is directionally and radially conducted, and the expansion rods drive the roller body to radially deform. When different current is supplied to the groups of electric heating temperature control expansion rods respectively, a roller profile can be segmentally adjusted. Therefore, various continuously variable high-level roller type curves can be generated to flexibly adjust strip shapes. The roller has the effects of compensating roller wear and eliminating local high shape waves.

Description

technical field [0001] The invention relates to the technical field of strip rolling mills, in particular to a roll that can flexibly adjust the roll profile curve. Background technique [0002] In the industrial production of plate and strip, rolls are installed in two-roll mills, four-roll mills, six-high HC (High Crown, high-performance roll crown) mills and multi-roll mills as tools for plate and strip processing. In order to make the rolling mill have the shape adjustment function, various roll shape adjustment methods such as hydraulic roll bending, stringing rolls, water spray, CVC (Continuous Variable Crown, continuously variable crown) roll shape are usually used to change the shape of the bearing roll gap, To achieve the purpose of plate shape control. In addition, the United States, Britain, Japan, etc. have also successively proposed the concept of placing electric heaters as heat sources in the through-holes of the rolls for segmental and local heating to adjus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B27/02B21B27/08
Inventor 杜凤山许志强黄华贵于辉杨霄玉杜凤林
Owner YANSHAN UNIV
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