CN102107222B - On-line vibration detection device and method for equipment state of hot finishing mill - Google Patents
On-line vibration detection device and method for equipment state of hot finishing mill Download PDFInfo
- Publication number
- CN102107222B CN102107222B CN200910264820A CN200910264820A CN102107222B CN 102107222 B CN102107222 B CN 102107222B CN 200910264820 A CN200910264820 A CN 200910264820A CN 200910264820 A CN200910264820 A CN 200910264820A CN 102107222 B CN102107222 B CN 102107222B
- Authority
- CN
- China
- Prior art keywords
- vibration
- input
- central processing
- processing module
- steel plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention relates to an on-line vibration detection device and method for an equipment state of a hot finishing mill, belonging to the technical field of on-line detection of roll steel. The signal output ends of the vibration velocity and vibration acceleration of the device are respectively connected with the input end of a central processing module, and the output end of the central processing module is externally connected with an upper computer and an alarming device; an equipment fault can be checked through vibration detection in working state through a storing step, an inputting step, a collecting step, an operation step, a determining step and a revising step; and false alarming due to temporarily irregular impact and vibration such as steel-engaging impact and steel-throwing impact when the hot finishing mill works can be effectively reduced, and the authenticity of alarming can be improved.
Description
Technical field
The present invention relates to a kind of vibration detection device, especially a kind of hot finisher equipment state on-line vibration checkout gear also relates to corresponding method simultaneously, belongs to steel rolling online measuring technique field.
Background technology
Understand according to the applicant, existing milling train on-line vibration checkout gear mainly is made up of vibrating sensor on the equipment of being placed in and central processing module.After the equipment vibrating signal that vibrating sensor detects is transferred to central processing module, after the A/D conversion, compare with predetermined threshold, thereby the equipment that judges whether breaks down, and whether send alarm signal.For example; Application number is that 02294631.4 Chinese patent discloses a kind of high-speed rod trailer gearbox fault check-out console; It is coupled to the input of a signal processor by the sensor that can be felt relevant vibration signal; This signal processor is sent into respectively in connected demodulation converter and the low-frequency vibration separator after with isolated system vibration signal processing and amplifying; The demodulation converter then from exchange vibration signal conversion have the restituted signal that reflects the fault impact information, the low-frequency vibration separator is then isolated the low-frequency vibration signal corresponding with rotating speed; The signal of said demodulation converter and the output of low-frequency vibration separator is sent into the computer A interface of a sampling and analyzing and diagnosing; Therefore can solve the low-frequency vibration signal of high-speed rod-rolling mill gear-box output, the problem that fault impact shock signal is handled and gathered, for computer vibration and demodulation accident analysis provide detection signal.
Yet; When the hot fine rolling machine equipment moves, in the process of every rolling steel billet, there is zero load, stings the load of continuous alternate such as steel drift hits, steel band is rolling, the throwing steel drift hits; And different size steel billet, distinct device rotating speed also can cause the variation of loading; Thereby cause that various vibrations appear in equipment, the resulting vibration signal situation of above-mentioned direct monitoring Continuous Running Equipment more complicated, often being difficult to distinguish vibration is due to rolling working conditions change or equipment state change; The result causes the fault location difficulty, and false alarm is more.In addition, existing checkout gear can only detect vibration velocity usually, and the abnormal information that is provided is not comprehensive.Therefore, be difficult to satisfy the actual demand of the detection of finish rolling equipment state, fault diagnosis and early warning.
Application number is that 200510115201.7 patent of invention discloses a kind of method that detects the roll stand vibration.But this method is not the problem that exists to above-mentioned prior art.
Summary of the invention
The objective of the invention is to: to the problem of above-mentioned prior art existence; Propose a kind ofly can guarantee not only that the milling equipment state has and in time to forecast when unusual; And can effectively reduce the hot finisher equipment state on-line vibration checkout gear of wrong report, provide corresponding method simultaneously.
In order to reach above purpose, hot finisher equipment state on-line vibration checkout gear of the present invention contains the vibrating sensor on the equipment of being placed in; The vibration velocity of said vibrating sensor and vibration acceleration signal output connect the input of central processing module respectively, external host computer of the output of said central processing module and warning device; Said central processing module contains:
Storage device---in order to the vibration velocity alarm threshold value Wv of storage setting and the alarm threshold value Wg of vibration acceleration;
Input unit---in order to treating rolling condition such as milled sheet base specification to central processing module input, and set steel plate and gather number n (general n is made as 3 or 4 for the first time);
Harvester---whether satisfy the acquisition condition of standard in order to judge the rolling condition of importing, then begin vibration velocity Riv and vibration acceleration Rig that pick-up transducers transmits in this way, and number is gathered in record; Otherwise do not gather;
Arithmetic unit---in order to judging whether times of collection equals to gather the steel plate piece and count n, as otherwise returned a last step, then calculate vibration velocity Riv and the vibration acceleration Rig mean value gathered for n time in this way;
Judgment means---whether greater than corresponding threshold value Wv, then returned for second step in order to the mean value Rv that judges vibration velocity if not; Then export the pre-alarm signal in this way, and judge that further vibration acceleration mean value Rg whether greater than corresponding threshold value Wg, then returned for second step if not; Output alarm signal then in this way;
The revision device---in order to the alarm signal validity instruction according to input, the revision steel plate is gathered number n; As very then keep original steel plate to gather number n; As otherwise replace original steel plate with n+1 and gather number.
On equipment, settle vibrating sensor with above-mentioned corresponding hot finisher equipment state on-line vibration detection method; The vibration velocity of said vibrating sensor and vibration acceleration signal output connect the input of central processing module respectively, external host computer of the output of said central processing module and warning device; Implementation step is following:
On equipment, settle vibrating sensor; The vibration velocity of said vibrating sensor and vibration acceleration signal output connect the input of central processing module respectively, external host computer of the output of said central processing module and warning device; Implementation step is following
The first step, storing step---the vibration velocity alarm threshold value Wv of storage setting in central processing module and the alarm threshold value Wg of vibration acceleration;
Second step, input step---treat rolling conditions such as milled sheet base specification to the central processing module input, and set steel plate and gather number n (general n is made as 3 or 4 for the first time);
Whether the rolling condition of the 3rd step, acquisition step---central processing module judges input satisfies the acquisition condition of standard, then begin vibration velocity Riv and vibration acceleration Rig that pick-up transducers transmits in this way, and number is gathered in record; Otherwise do not gather;
The 4th the step, calculation step---judge whether times of collection equals to gather the steel plate piece and count n, as otherwise returned a last step, then calculate in this way n time the collection vibration velocity Riv and vibration acceleration Rig mean value;
The 5th step, determining step---whether the mean value Rv that judges vibration velocity if not then returns second step greater than corresponding threshold value Wv; Then export the pre-alarm signal in this way, and judge that further vibration acceleration mean value Rg whether greater than corresponding threshold value Wg, then returned for second step if not; Output alarm signal then in this way;
The 6th step, revision step---according to the alarm signal validity instruction of input, the revision steel plate is gathered number n; As very then keep original steel plate to gather number n; As otherwise replace original steel plate with n+1 and gather number.
Because the vibration that equipment fault causes is extraordinary to be regular recurrent; Therefore the foundation that at first breaks down as the equipment of judging whether with the mean value of vibration velocity and vibration acceleration of the present invention can effectively reduce and sting steel drift when the hot fine rolling machine equipment moves and hit, throw steel drift and the false alarm that of short duration irregular impact shock causes such as hit; And, considering the influence of different size steel billet, distinct device rotating speed to irregular vibration, the present invention also constantly according to the authenticity of final alarm signal, revises average factor n, thereby has further avoided false alarm.
In addition; The present invention judges as pre-alarm with the vibration velocity of reflection equipment soft impulse; And judge as final alarm criteria with the vibration acceleration of reflection equipment rigid shock, thereby not only realized through vibration detection discovering device fault, further increased the authenticity of reporting to the police.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is the hardware environment block diagram of one embodiment of the invention.
Fig. 2 is a preposition module frame chart among Fig. 1 embodiment.
Fig. 3 is the flow chart of Fig. 1 embodiment testing process.
The specific embodiment
Embodiment one
The hot finisher equipment state on-line vibration checkout gear of present embodiment is as shown in Figure 1, and vibration acceleration sensor is placed on the vibration equipment measuring point, and its signal output part connects the input of preposition module.The input of preposition module (referring to Fig. 2) is a bandpass filter, and this bandpass filter connects the corresponding input of central processing module simultaneously through the integrator and first low pass filter through high-pass filter, envelope detector and second low pass filter.Its effect is that the signal of telecommunication that vibration acceleration sensor transmits is carried out preliminary treatment.Through bandpass filtering,, carry out filtering by the logical frequency parameter of each path setting; Be divided into two-way then, the one tunnel through time integral, LPF, generates vibration velocity signal imitation amount; Another generates the vibration acceleration analog signal through high-pass filtering, envelope detection, LPF, and this module of present embodiment is arranged on the data acquisition module XM-120.
Central processing module contains A/D conversion, microprocessor and memory cell, and its output is through communication interface, external host computer and warning device.Step during work is as shown in Figure 3:
1) storing step---the vibration velocity alarm threshold value Wv of storage setting in central processing module and the alarm threshold value Wg of vibration acceleration;
2) input step---treat rolling conditions such as milled sheet base specification to the central processing module input, and set steel plate and gather number n (general n is made as 3 or 4 for the first time);
Whether the rolling condition of 3) acquisition step---central processing module judges input satisfies the acquisition condition of standard, then begin vibration velocity Riv and vibration acceleration Rig that pick-up transducers transmits in this way, and number is gathered in record; Otherwise do not gather;
4) calculation step---judge whether times of collection equals to gather the steel plate piece and count n, as otherwise returned a last step, as otherwise calculate the vibration velocity Riv and the vibration acceleration Rig mean value of n collection;
In the following formula: RV---the mean value of n collection vibration velocity
Rg---the mean value of n collection vibration acceleration
The vibration speed value that Riv-gathers for the i time (i＜n)
The vibration acceleration value that Rig-gathers for the i time (i＜n)
5) determining step---whether the mean value Rv that judges vibration velocity if not then returns second step greater than corresponding threshold value Wv; Then export the pre-alarm signal in this way, and judge that further vibration acceleration mean value Rg whether greater than corresponding threshold value Wg, then returned for second step if not; Output alarm signal then in this way;
6) revision step---according to the alarm signal validity instruction of input, the revision steel plate is gathered number n; As very then keep original steel plate to gather number n; As otherwise replace original steel plate with n+1 and gather number;
Whether 7) pre-shaping step---the alarm threshold value Wv, the Wg that estimate to be provided with is fit to the equipment that detected, if then remain unchanged; If the setting value not, then also normative reference and empirical data finishing 1 as required).
Facts have proved that present embodiment and original compared with techniques have following remarkable advantage:
1) each acquisition channel of present embodiment produces vibration velocity and vibration acceleration analog quantity simultaneously, during The Analysis of Abnormal State, can access same passage, synchronization vibration velocity and acceleration collection of illustrative plates, helps two collection of illustrative plates check analysis.Original technology can not produce vibration vibration velocity and vibration acceleration analog quantity simultaneously, and comparativity is poor during contrast.
2) present embodiment is pressed rolling condition, the milling train specification is gathered.Can be to rolling condition of the same race, the image data of rolling specs compares analysis, more can reflect the variation tendency of equipment state through the variation of image data.The data that original technology is gathered are not distinguished different rolling conditions, rolling specs, and the data comparativity of collection is not strong, and it is bigger influenced by rolling condition and rolling specs, and the accuracy of the data reflection equipment state of being gathered is relatively poor.
3) A/D of present embodiment can gather 32 vibration signals of 16 passages simultaneously.During unit exception, storage is 16 vibration velocities and the 16 vibration acceleration values of all 16 passages at that time.Test point occurs when unusual, through data query, analysis, the contrast of other related channel programs of gathering simultaneously, is more convenient for searching the source of trouble.The single vibration signal of the single vibrating channel of original technology is touring to be gathered, and different passages can not store synchronization vibration velocity, vibration acceleration value simultaneously.
4) alarming value in the present embodiment can adopt the alarming value through mass data accumulation, optimization, presses rolling condition and specification, the device personality characteristics, and the setting that becomes more meticulous can reflect that rolling operating mode factor also can reflect device personality, it is more accurate to report to the police.Original technology is not distinguished rolling condition and steel plate specification, and an alarming value is set, and the warning accuracy is relatively poor relatively, when searching warning reason more difficulty confirm operating mode factor or apparatus factor.
Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (4)
1. a hot finisher equipment state on-line vibration checkout gear contains the vibrating sensor on the equipment of being placed in; It is characterized in that: the vibration velocity of said vibrating sensor and vibration acceleration signal output connect the input of central processing module respectively, external host computer of the output of said central processing module and warning device; Said central processing module contains:
Storage device---in order to the vibration velocity alarm threshold value of storage setting and the alarm threshold value of vibration acceleration;
Input unit---in order to treating milled sheet base specification rolling condition to central processing module input, and set the steel plate collection block and count n;
Harvester---whether satisfy the acquisition condition of standard in order to judge the rolling condition of importing, then begin vibration velocity and vibration acceleration that pick-up transducers transmits in this way, and record collection block number; Otherwise do not gather;
Arithmetic unit---in order to judging whether times of collection equals to gather the steel plate piece and count n, as otherwise carry out the operation of harvester, calculate vibration velocity and the vibration acceleration mean value gathered for n time in this way;
Judgment means---whether greater than corresponding threshold value Wv, then carry out the operation of input unit in order to the mean value of judging vibration velocity if not; Then export the pre-alarm signal in this way, and whether further judge vibration acceleration mean value, then carry out the operation of input unit if not greater than corresponding threshold value; Output alarm signal then in this way;
The revision device---in order to the alarm signal validity instruction according to input, revision steel plate collection block is counted n; As very then keep original steel plate collection block to count n; As otherwise replace original steel plate collection block number with n+1.
2. hot finisher equipment state on-line vibration checkout gear according to claim 1, it is characterized in that: said vibrating sensor is made up of vibration acceleration sensor and preposition module; The signal output part of said vibration acceleration sensor connects the input of preposition module; The input of said preposition module is a bandpass filter, and said bandpass filter connects the corresponding input of central processing module simultaneously through the integrator and first low pass filter through high-pass filter, envelope detector and second low pass filter.
3. a hot finisher equipment state on-line vibration detection method is characterized in that: on equipment, settle vibrating sensor; The vibration velocity of said vibrating sensor and vibration acceleration signal output connect the input of central processing module respectively, external host computer of the output of said central processing module and warning device; Implementation step is following:
The first step, storing step---the vibration velocity alarm threshold value of storage setting in central processing module and the alarm threshold value of vibration acceleration;
Second step, input step---treat milled sheet base specification rolling condition to the central processing module input, and set the steel plate collection block and count n;
Whether the rolling condition of the 3rd step, acquisition step---central processing module judges input satisfies the acquisition condition of standard, then begins vibration velocity and vibration acceleration that pick-up transducers transmits in this way, and record collection block number; Otherwise do not gather;
The 4th the step, calculation step---judge whether times of collection equals to gather the steel plate piece and count n, as otherwise returned a last step, then calculate in this way n time the collection vibration velocity and vibration acceleration mean value;
Whether the 5th step, determining step---the mean value of judging vibration velocity if not then returns second step greater than corresponding threshold value; Then export the pre-alarm signal in this way, and whether further judge vibration acceleration mean value, then returned for second step if not greater than corresponding threshold value; Output alarm signal then in this way;
The 6th step, revision step---according to the alarm signal validity instruction of input, revision steel plate collection block is counted n; As very then keep original steel plate collection block to count n; As otherwise replace original steel plate collection block number with n+1.
4. hot finisher equipment state on-line vibration detection method according to claim 3 is characterized in that: also comprise the 7th step, pre-shaping step---whether the alarm threshold value that estimate to be provided with is fit to the equipment that detected, then remains unchanged in this way; As otherwise the setting value of finishing in the first step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910264820A CN102107222B (en) | 2009-12-24 | 2009-12-24 | On-line vibration detection device and method for equipment state of hot finishing mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910264820A CN102107222B (en) | 2009-12-24 | 2009-12-24 | On-line vibration detection device and method for equipment state of hot finishing mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102107222A CN102107222A (en) | 2011-06-29 |
| CN102107222B true CN102107222B (en) | 2012-08-29 |
Family
ID=44171568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910264820A Expired - Fee Related CN102107222B (en) | 2009-12-24 | 2009-12-24 | On-line vibration detection device and method for equipment state of hot finishing mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102107222B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190724A (en) * | 2014-09-17 | 2014-12-10 | 太原理工大学 | Measuring device for mechanical-electrical-hydraulic coupling vertical vibration of screw-down system of rolling mill |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071685B (en) * | 2013-01-22 | 2015-01-28 | 重庆大学 | Twenty-high roll mill chatter mark monitoring system and method based on angular domain |
| CN104070066B (en) * | 2013-03-25 | 2016-03-30 | 宝山钢铁股份有限公司 | Rolling Mill Self-Vibration method for early warning |
| CN103752619B (en) * | 2013-10-29 | 2016-09-21 | 首钢京唐钢铁联合有限责任公司 | Roll shifting control method and device for hot rolling operation |
| CN103521531B (en) * | 2013-11-07 | 2015-06-10 | 天津理工大学 | Fault diagnosis and feedback system according to third octave flutter of high-speed cold rolling mill |
| CN103611733B (en) * | 2013-12-19 | 2016-04-27 | 济钢集团有限公司 | A kind of hot-strip tandem rolling roll gap compensating control method and control system |
| CN104165682A (en) * | 2014-08-05 | 2014-11-26 | 中国北车集团大连机车车辆有限公司 | Vibration fault early warning device and method of ventilation machine of internal combustion locomotive |
| CN104550264A (en) * | 2014-12-24 | 2015-04-29 | 中冶南方(武汉)威仕工业炉有限公司 | System and method for measuring vibration condition of strip steel in gas cooling section |
| CN108444703A (en) * | 2018-03-15 | 2018-08-24 | 上海士翌测试技术有限公司 | Three-dimensional Intelligent sensing device |
| CN112191691B (en) * | 2020-10-13 | 2022-06-14 | 邯郸钢铁集团有限责任公司 | Method for rapidly judging and processing vibration of rolling mill |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2532468Y (en) * | 2002-02-04 | 2003-01-22 | 中南大学 | Vibration test device with automatic shift function |
| CN2591607Y (en) * | 2002-12-27 | 2003-12-10 | 高立新 | High-speed rod-rolling mill gear box fault detecting plate |
| CN1772405A (en) * | 2004-11-12 | 2006-05-17 | 韦克莱奇姆公司 | Process for the detection of vibrations of a roll stand |
-
2009
- 2009-12-24 CN CN200910264820A patent/CN102107222B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2532468Y (en) * | 2002-02-04 | 2003-01-22 | 中南大学 | Vibration test device with automatic shift function |
| CN2591607Y (en) * | 2002-12-27 | 2003-12-10 | 高立新 | High-speed rod-rolling mill gear box fault detecting plate |
| CN1772405A (en) * | 2004-11-12 | 2006-05-17 | 韦克莱奇姆公司 | Process for the detection of vibrations of a roll stand |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190724A (en) * | 2014-09-17 | 2014-12-10 | 太原理工大学 | Measuring device for mechanical-electrical-hydraulic coupling vertical vibration of screw-down system of rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102107222A (en) | 2011-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102107222B (en) | On-line vibration detection device and method for equipment state of hot finishing mill | |
| CN102765010B (en) | Cutter damage and abrasion state detecting method and cutter damage and abrasion state detecting system | |
| CN106891914A (en) | Rail clip working state of system real-time monitoring device, system and method | |
| CN104015672B (en) | For the method for registration of vehicle related data, sensor device and vehicle | |
| CN105223034B (en) | A kind of braking performance test method and its system | |
| CN103674234B (en) | State early warning method and system for abnormal vibration of wind generating set | |
| CN105424364A (en) | Diagnostic method and device of train bearing failure | |
| CN206583854U (en) | A kind of monitoring device of the elastic state of rail fastening | |
| CN102175768A (en) | Method and device for detecting defects and failures of high-speed rail based on vibration signals | |
| CN101713997A (en) | Method and system of wind turbine condition monitoring | |
| CN106679999A (en) | Built-in-compartment high-speed train running part online fault detection device | |
| CN113124974B (en) | Vehicle overload detection method, system, storage medium and equipment | |
| GB2277151A (en) | Machine monitoring using neural network | |
| CN104142176A (en) | Vibration detection device of air conditioner | |
| CN201740656U (en) | Bulldozer dynamic parameter testing device based on LabVIEW | |
| CN105973591B (en) | A kind of test macro of gearbox | |
| CN206475888U (en) | Rail clip working state of system real-time monitoring device and system | |
| CN112594356B (en) | High-speed railway and subway gear box operation monitoring and fault diagnosis system | |
| CN110217265A (en) | Vehicle flat sliding detection system and method | |
| CN107748072A (en) | Shock absorber of automobile suspension impact noise recognition methods | |
| CN102661779B (en) | Comprehensive diagnosis system of shaking faults | |
| CN109894476A (en) | A kind of cold rolled silicon steel production line hydraulic equipment fault diagnosis method and device | |
| CN201953977U (en) | On-line fault diagnosis system of decelerating clutch | |
| CN108303465A (en) | A kind of fault detection method and system based on machine vibration | |
| CN2861966Y (en) | Lazar inertial reference type fast road cross-section tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20181224 |