Search

CN-122007179-A - Rolling mill vibration detection and correction system of integrated vibration recorder

CN122007179ACN 122007179 ACN122007179 ACN 122007179ACN-122007179-A

Abstract

The invention relates to a rolling mill vibration detection and correction system of an integrated vibration recorder, and belongs to the technical field of steel rolling equipment. The system comprises a multi-dimensional signal detection unit, a self-adaptive vibration correction unit, a vibration correction collaborative integration unit, a working condition optimization unit and a grading emergency regulation and control unit, wherein the multi-dimensional signal detection unit acquires multi-source vibration related signals of a rolling mill, the multi-modal fusion module is input for time sequence related analysis, fusion characteristics are extracted and output from the multi-dimensional vibration detection table, the self-adaptive vibration correction unit is combined with historical data stored by a vibration recorder, the vibration evolution data is pre-judged through a prediction model, correction parameters are dynamically generated, rolling force, speed and roller phase are adjusted, the vibration correction collaborative integration unit is used for synchronously aligning real-time data and correction execution data of the recorder, the recorder is regularly calibrated and a collaborative data set is formed, the working condition optimization unit is used for calling an anti-interference scheme according to different working conditions, and grading emergency regulation and control is started when vibration exceeds a threshold. The vibration comprehensive detection, dynamic correction and multi-working-condition adaptation of the rolling mill are realized, and the running stability and the rolling material quality of the rolling mill are improved.

Inventors

  • LI SHUXIAO

Assignees

  • 上海朗尚传感技术有限公司

Dates

Publication Date
20260512
Application Date
20251225

Claims (12)

  1. 1. A rolling mill vibration detection and correction system of an integrated vibration recorder is characterized by comprising a multi-dimensional signal detection unit, a self-adaptive vibration correction unit, a vibration correction cooperative integration unit and a working condition optimization unit; The multi-dimensional signal detection unit acquires multi-source vibration related signals of the rolling mill, performs classification pretreatment according to signal types, inputs the processed signals into a preset multi-mode fusion module for time sequence related analysis, extracts fusion characteristics and outputs a multi-dimensional vibration detection table; The self-adaptive vibration correction unit is used for dynamically generating correction parameters based on the mapping relation between the rolled material and the vibration characteristics, and adjusting the rolling force, the rolling speed and the roller phase to obtain a self-adaptive vibration correction execution result; The vibration correction collaborative integration unit synchronously reads real-time data and correction execution data of the vibration recorder based on the self-adaptive vibration correction execution result and performs time sequence alignment; The working condition optimization unit is used for executing self-adaptive anti-interference processing aiming at different working conditions of a workshop based on the vibration correction collaborative integration data set, and starting a grading emergency regulation and control mechanism when the vibration amplitude exceeds a preset safety threshold value to finally generate a working condition optimization report.
  2. 2. The system according to claim 1, wherein the specific process of performing the classification preprocessing according to the signal type is to perform type recognition and classification on the source vibration related signal, and the classification is to divide the source vibration related signal into a vibration type signal, a stress type signal and a position type signal, respectively process the different types of signals, perform filtering processing on the vibration type signal, perform data smoothing processing on the stress type signal, and perform deviation correction processing on the position type signal.
  3. 3. The system of claim 1, wherein the preset multi-mode fusion module specifically comprises an input layer, a feature extraction layer, a time sequence association layer, a fusion layer and an output layer, wherein the input layer is used for determining input data types, distributing independent input channels for each type of signals corresponding to vibration type, stress type and position type signals in the multi-source vibration association signals of the rolling mill, the feature extraction layer is used for respectively extracting features for different types of signals, the time sequence association layer is used for introducing a time stamp alignment mechanism, matching feature data of the different types of signals according to acquisition time, calculating correlation coefficients among the features to establish a time sequence association relation, the fusion layer is used for calibrating contribution degree of various signal features to vibration detection according to contribution degree by adopting a weight distribution strategy, and the comprehensive fusion features are converted into a standardized data format by the output layer.
  4. 4. The system of claim 1, wherein the specific process of performing the time sequence correlation analysis is to sort various signals into time sequence data sequences according to the time sequence of collection, each type of time sequence data sequence corresponds to one input channel of the multi-mode fusion model, the multi-mode fusion model extracts characteristic values of different types of signals at the same time node through time sequence correlation, calculates correlation coefficients among the characteristic values, and analyzes trend of time variation of the different signals.
  5. 5. The system of claim 1, wherein the specific process of extracting the fusion features and outputting the multi-dimensional vibration detection table comprises the steps of integrating the associated features of various signals by the multi-mode fusion model, extracting comprehensive features capable of reflecting vibration intensity, vibration frequency and vibration influence range of a rolling mill, and sorting the comprehensive features according to a preset table format, wherein the comprehensive features comprise feature names, feature values and acquisition position and time length information corresponding to the features, so as to form the multi-dimensional vibration detection table.
  6. 6. The system according to claim 1, wherein the specific process of predicting the vibration evolution data through the prediction model is that historical rolling data and vibration records are called through the vibration recorder, the historical rolling data comprise historical rolling force, rolling speed and roll phase information, the vibration records comprise historical vibration amplitude values and vibration duration time, the historical rolling data and the vibration records are input into the prediction model, and the variation trend of vibration amplitude values and the fluctuation range of vibration frequency in preset time are calculated by learning the variation rule of vibration along with rolling parameters in the historical data and combining with the real-time vibration characteristics in the multi-dimensional vibration detection table.
  7. 7. The system of claim 1, wherein the specific process of dynamically generating correction parameters comprises the steps of retrieving a preset rolled material property library, storing mechanical property parameters corresponding to different rolled material materials in the rolled material property library, searching a relevant record matched with the current rolled material materials and the vibration characteristics in a mapping relation library by combining the vibration characteristics in the multi-dimensional vibration detection table, determining the type of the rolled parameters to be adjusted according to the matched relevant record, and calculating the adjustment amplitude and the adjustment direction of each parameter to form the dynamic correction parameters.
  8. 8. The system according to claim 1, wherein the specific process of obtaining the execution result of the adaptive chatter vibration correction by adjusting the rolling force, the rolling speed and the rolling phase is that the rolling force, the rolling speed and the rolling phase of the rolling mill are respectively adjusted according to the correction parameters, the rolling force increases and decreases the hydraulic system pressure, the rotating speed of the speed adjusting motor and the rolling phase adjust the angle of the rolling transmission mechanism, the actual parameter value is fed back after the adjustment is executed, the actual parameter value is compared with the correction parameter, and the adjusted parameter change and the execution time are recorded.
  9. 9. The system according to claim 1, wherein the synchronous reading of real-time vibration data and correction execution data of the vibration recorder is performed in a time sequence alignment mode, namely, real-time vibration data are obtained through the vibration recorder, correction execution data are obtained from the adaptive vibration correction unit, time marks are carried by the two types of data, the time marks are uniformly converted into preset standard time, the time marks of the correction execution data are adjusted by taking the time marks of the vibration recorder as a reference when time deviation exists in comparison with the two types of data under the same standard time.
  10. 10. The system according to claim 1, wherein the specific process of performing periodic automatic calibration on the vibration recorder is that the system presets a fixed calibration period, the calibration process is automatically triggered after the period arrives, a standard vibration signal is called, the vibration recorder acquisition end is input through a transmission line, the vibration recorder receives the standard signal and outputs a detection signal, the system compares the amplitude and the frequency difference value of the detection signal and the standard signal, a calibration parameter is automatically generated according to the difference value, and the signal amplification coefficient and the frequency response parameter of the recorder are adjusted until the difference value meets preset requirements.
  11. 11. The system of claim 1, wherein the vibration correction collaborative integration data set is formed by summarizing real-time vibration data, correction execution data and automatic calibration record data with aligned time sequences, converting different source data into a preset standard format, sorting according to a data generation time sequence, and marking data types and corresponding vibration detection table numbers on each data.
  12. 12. The system of claim 1, wherein the specific process of performing the adaptive anti-interference treatment for different working conditions of the workshop is to judge the type of the working conditions of the current workshop, wherein the type of the working conditions comprises a rolling working condition, a roll changing working condition and a strip steel biting working condition, call corresponding anti-interference schemes for different working conditions, enable a motor fundamental frequency interference filtering scheme for the rolling working condition, enable an impact interference suppression scheme for the roll changing working condition and enable a contact impact interference compensation scheme for the strip steel biting working condition.

Description

Rolling mill vibration detection and correction system of integrated vibration recorder Technical Field The invention belongs to the technical field of steel rolling equipment, and particularly relates to a rolling mill vibration detection and correction system of an integrated vibration recorder. Background In steel rolling production in the steel industry, a rolling mill is a core device, and the running stability of the rolling mill directly determines the surface precision, dimensional tolerance and mechanical properties of rolled materials (such as strip steel and sheet materials). The vibration of the rolling mill is a common key problem in production, and is expressed as periodic vibration of a rolling mill frame, a roller system or a transmission part under the action of rolling force, so that the defects of corrugation, scratch and the like on the surface of a rolled material can be caused, the qualification rate of the product is reduced, the abrasion of a roller and the ageing of a bearing can be aggravated, the service life of equipment is shortened, even the breakage of the rolling mill part is caused when the vibration is serious, the production interruption and the potential safety hazard are caused, and the influence on the productivity and the economic benefit of steel enterprises is remarkable. The detection and correction technology for the vibration of the rolling mill in the current industry still has various limitations, and is difficult to meet the high-precision and intelligent production requirements: Firstly, the detection means are mostly dependent on single signal acquisition, and the data one-sidedness is strong. In the prior art, vibration signals of a certain part (such as a working roller) of a rolling mill are collected only through a vibration sensor, or only single technological parameters such as rolling force, speed and the like are monitored, and multisource associated signals such as vibration, stress, strip steel position and the like cannot be integrated, so that the root cause of vibration is difficult to capture comprehensively; Secondly, most of the shake correction parameters are fixed, and the adaptability is poor. The existing correction scheme is mainly based on experience to preset adjustment values of parameters such as rolling force, speed and the like, and is not combined with material difference of rolled materials (such as different mechanical properties of low carbon steel and high carbon steel and different sensitivity to vibration) and real-time vibration characteristic dynamic adjustment, so that the correction effect is unstable; Third, there is a lack of a collaborative integration mechanism for vibration recording and correction execution. Part of the technologies are provided with vibration recorders, but are only used for storing historical data, real-time data of the vibration recorders are not synchronously associated with parameter changes in the correction execution process, and the vibration recorders are not regularly calibrated, so that time deviation or precision errors exist between the vibration data and the correction data, an effective closed loop cannot be formed, and follow-up correction strategies are difficult to optimize through the historical data; Fourth, the working condition adaptation and emergency regulation and control ability is weak. In workshop production, different working conditions such as normal rolling, roll changing, strip steel biting and the like exist, interference signals (such as impact interference during roll changing and contact interference during biting) under the working conditions are obvious in difference, a unified anti-interference scheme is adopted in the prior art, working condition interference cannot be filtered pertinently, emergency regulation and control are in a single threshold triggering shutdown mode, a regulation and control strategy is not formulated in a grading mode according to vibration amplitude, capacity waste is caused by shutdown when vibration is slightly generated, and fault influence is enlarged when serious vibration is not interfered in time. Disclosure of Invention In order to solve the problems in the prior art, the invention provides a rolling mill vibration detecting and correcting system of an integrated vibration recorder, The aim of the invention can be achieved by the following technical scheme: the system comprises a multidimensional signal detection unit, a self-adaptive vibration correction unit, a vibration correction cooperative integration unit and a working condition optimization unit; The multi-dimensional signal detection unit acquires multi-source vibration related signals of the rolling mill, performs classification pretreatment according to signal types, inputs the processed signals into a preset multi-mode fusion module for time sequence related analysis, extracts fusion characteristics and outputs a multi-dimensional vibration detection table; The sel