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A method for obtaining the friction torque of a twenty-high cold rolling mill

An acquisition method and technology of friction torque, applied in the direction of metal rolling stand, metal rolling mill stand, metal rolling, etc., can solve the problem that the mathematical model cannot be accurately evaluated.

Active Publication Date: 2019-01-04
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for obtaining the friction torque of a 20-high cold rolling mill, which aims to solve the problem that the existing friction torque can not be evaluated more accurately through mathematical models by relying on experience or referring to the data of similar units technical problem

Method used

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  • A method for obtaining the friction torque of a twenty-high cold rolling mill
  • A method for obtaining the friction torque of a twenty-high cold rolling mill
  • A method for obtaining the friction torque of a twenty-high cold rolling mill

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Embodiment 1

[0070] figure 2 The flow of the method for obtaining the friction torque of the twenty-high cold rolling mill provided by the embodiment of the present invention, for the sake of illustration, only shows the part related to the embodiment of the present invention.

[0071] Such as figure 2 As shown, the method for obtaining the frictional moment of the twenty-high cold rolling mill provided in this embodiment includes the following steps:

[0072] Step S201, obtain the rolling pressure and rolling moment parameters, and calculate the rolling pressure P (unit KN) and rolling moment M from the strip rolling force parameter model or from the rolling table R (unit KN×m).

[0073] Step S202, determining the relative position angles between the rollers. The relative position angle between the described rollers is represented by the included angle between the centerlines of the rollers, as image 3 shown, including:

[0074] Angle between the center line connecting roll 1, rol...

Embodiment 2

[0152] Figure 5 The flow of the method for obtaining the frictional moment of the twenty-high cold rolling mill provided by the embodiment of the present invention, for the convenience of description, only shows the part related to the embodiment of the present invention.

[0153] Such as Figure 5 As shown, the method for obtaining the frictional moment of the twenty-high cold rolling mill provided in this embodiment includes the following steps:

[0154] Step S501, obtain the rolling pressure and rolling moment parameters, calculate from the strip rolling force energy parameter model or obtain the rolling pressure P (unit KN) and rolling moment M from the rolling table R (unit KN×m).

[0155] Step S502, determining the relative position angles between the rollers. The relative position angle between the rollers is represented by the angle between the centerlines of the rollers.

[0156]The above two steps are the same as steps S201 and S202 in the first embodiment, and ...

Embodiment 3

[0231] Figure 6 A structural schematic diagram of the acquisition device for the frictional moment of the twenty-high cold rolling mill provided by the embodiment of the present invention is given, as Figure 6 As shown, the acquisition device of the twenty-high cold rolling mill friction torque provided by the present embodiment includes:

[0232] The rolling force parameter acquisition module is used to obtain rolling pressure and rolling moment from the strip rolling force parameter model or rolling table.

[0233] The roll position determination module is used to calculate the relative position angle between each roll from the geometric relationship.

[0234] The parameter setting module is used to set the direction angle of the force between the rollers.

[0235] The iterative calculation module is used to iteratively and iteratively calculate the force between the rollers from the formula of the force between the rollers and the formula of the direction angle of the f...

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Abstract

The invention relates to a method for obtaining the friction torque of a twenty-roller cold-rolling mill. The method comprises the following steps that S1, the rolling pressure and the rolling torque parameter are obtained; S2, the relative position angles between all rollers are determined; S3, the direction angle of acting force between every two adjacent roller is set; S4, the inter-roller acting force is worked out through repeated iteration according to an inter-roller acting force formula and a direction angle formula for the inter-roller acting force, and the inter-roller rolling friction force arm is calculated; and S5, the friction torque is worked out according to the inter-roller acting force and the inter-roller friction force arm. According to the method, the principle is clear and explicit, iterative calculation is rapid, and the calculation result is consistent with actual field measurement and can serve as the basis for capacity selection and load verification of the twenty-roller cold-rolling mill.

Description

technical field [0001] The invention relates to the technical field of twenty-high cold rolling mills, and more specifically, relates to a method for obtaining friction torque of twenty-high cold rolling mills. Background technique [0002] The upper and lower rolls of the twenty-high cold rolling mill are arranged in a tower shape according to 1-2-3-4, and the upper and lower rolls are symmetrically distributed along the rolling line, such as figure 1 shown. The upper and lower two work rolls lean on the two first intermediate rolls respectively, the upper and lower pairs of first intermediate rolls are supported on three second intermediate rolls, and the upper and lower six second intermediate rolls are respectively supported on the outer eight backing on bearing rolls. Among them, the four second intermediate rollers on the upper and lower sides are transmission rollers, which are driven by the main motor through the universal joint shaft, and the other rollers are dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B13/02
CPCB21B13/02B21B2265/12
Inventor 陈全忠吴有生
Owner WISDRI ENG & RES INC LTD