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A Method for Acquiring Transmission Torque of Strip Mill

A technology of transmission torque and acquisition method, which is applied to the driving device of metal rolling mill, rolling mill control device, metal rolling, etc. Effect

Active Publication Date: 2022-06-21
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for obtaining the transmission torque of a strip mill to solve the problem that the existing method has large calculation errors and cannot meet the requirements of engineering calculation accuracy.

Method used

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  • A Method for Acquiring Transmission Torque of Strip Mill
  • A Method for Acquiring Transmission Torque of Strip Mill
  • A Method for Acquiring Transmission Torque of Strip Mill

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Embodiment Construction

[0027] For a better understanding of the present invention, the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] like figure 1 The shown method for obtaining the transmission torque of a strip rolling mill specifically includes the following steps:

[0029] Step 1: Iteratively iterate the stress differential equation of the roll gap deformation zone and the roll gap thickness equation, and calculate the unit pressure distribution, friction stress distribution and roll gap thickness distribution of the roll gap deformation zone.

[0030] Since there are many iterative calculation methods for the stress differential equation of the roll gap deformation zone and the roll gap thickness equation (which are technologies disclosed in the industry), only one of the calculation methods is provided here, specifically:

[0031] S101 , setting an initial roll profile curve, and determining an entrance positio...

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Abstract

The invention discloses a method for obtaining transmission torque of a strip rolling mill, which comprises the following steps: repeatedly iterating from the stress differential equation in the roll gap deformation zone and the roll gap thickness equation to calculate and obtain the unit pressure distribution, friction stress distribution and Gap thickness distribution; calculate the moment of pressure distribution and frictional stress distribution on the center of the roll, sum to obtain the rolling moment on the work roll, and obtain the rolling moment transmitted to the drive roll through calculation; calculate the rolling pressure, and by The force balance of the roll system calculates the friction torque of the roll system transmitted to the drive roll; sums the rolling torque transmitted to the drive roll and the friction torque of the roll system to obtain the transmission torque of the rolling mill. The beneficial effects of the present invention are: the present invention does not need to introduce the force arm coefficient in the calculation process. Compared with the existing method, the method of the present invention is more perfect in theory and avoids the influence of human factors on the calculation accuracy.

Description

technical field [0001] The invention belongs to the technical field of rolling, and in particular relates to a method for obtaining a transmission torque of a strip rolling mill. Background technique [0002] The transmission torque of the strip mill is the basic basis for selecting the capacity of the main motor and checking the load of the main motor, and it is the most basic and critical process parameter of the strip mill. The transmission torque is mainly composed of the rolling torque transmitted to the transmission roller (transmission shaft), the friction torque loss of the roller system, the friction torque loss of the transmission system, the idling torque and the power distance. [0003] The existing methods for calculating the transmission torque consider that the friction torque of the roller system, the friction torque of the transmission system, the idling torque and the power distance account for a relatively small proportion of the transmission torque, so th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/00
CPCB21B37/00B21B2275/12
Inventor 陈全忠
Owner WISDRI ENG & RES INC LTD
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