CN103803267A - Detection method of belt conveyor material flow detection system for transporting materials - Google Patents
Detection method of belt conveyor material flow detection system for transporting materials Download PDFInfo
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Abstract
The invention discloses a detection method of a belt conveyor material flow detection system for transporting materials, and belongs to the field of automatic detection and control. The method comprises the following steps: (1) generating a material flow vibration signal: at least one of all horizontal support rollers in the belt conveyor material flow detection system is an eccentric support roller, the eccentric support roller is an elliptical roller, or a circular support roller, wherein an eccentric block is arranged on the peripheral surface of the circular support roller, the materials on a conveyor belt pass through the part above the eccentric support roller, and the eccentric support roller generates the material flow vibration signal which is transmitted to a belt conveyor bracket; (2) detecting the material flow vibration signal: a vibration sensor arranged on the belt conveyor bracket detects the material flow vibration signal generated in the step (1); (3) acquiring and displaying the material flow vibration signal. By the adoption of the technical scheme of the detection method, the vibration signal amplitudes vary more than ten times when the belt has materials and does not have materials, so that the high reliability of belt conveyor material flow is indirectly detected.
Description
Patent application of the present invention is to be for application number: 2012101305898 divisional application, the applying date of original application is: 2012-04-28, invention and created name is: a kind of belt feeder material stream checking system and method for inspection thereof of transported material.
Technical field
The present invention relates to the automatic Test and control field of belt transporter material loading stream, more particularly, relating on belt transporter and have material and the checking system without material, is a kind of method of inspection of the stream of the belt feeder material based on mechan-amplifier signal separation principle checking system.
Background technology
Large-scale iron and steel enterprise belt feeder delivery system has that flow process is many, transportation line length and operation feature frequently.At present, each steel production enterprise, in the raw material supply of its iron-smelter, adopts the method for supplying of fuel and raw material formula conventionally, be exactly its major equipment band conveyor, total accounted for the more than 90% of equipment amount.So, for the furnace charge transport systems of iron and steel enterprise, do not have failure-free material flow tracing to detect, the hopper tipping bucket time when being just difficult to accurate assurance and more reloading kind, easily cause the accidents such as flow process batch mixing, upper wrong material and windrow, for production safety management and raising rhythm of production, have very large restriction.
Existing belt feeder system only gathers motor operation signal the chain control of each belt feeder conventionally, as long as each motor rotation thinks that belt feeder works well in flow process.And the stub bar material tail that has or not material, material stream on belt feeder is specific to unreliable and actv. method of inspection where, thereby domestic belt feeder transport enterprise does not generally have failure-free low cost material flow tracing system.Most of belt feeder transport systemss are general relies on limited several industrial camera to observe estimation, or reloads the period by manual observation at needs, and is notified and reloaded or the tipping bucket time by interphone, cannot accomplish so the automatic detection and tracking of material stream.
At present, also have and be arranged on the material flow detection device using on belt feeder, each raw material plant is arranged on the device that carries out mass flow detection on band conveyor and mainly contains two kinds: one is metering electronic scale, its Main Function is exactly that the material of conveying is measured, but because its device structure is larger, accuracy requirement is higher, the cost of input is also relatively high, be not suitable for common logistics monitoring, be mainly used at present carried material to measure, and another kind is exactly scraper-type material flow detection device, its Main Function is exactly that the flowrate variation of material is monitored, this scraper-type material flow detection device is generally arranged on trailer belt top, in the time that material transmits on belt feeder, material contacts with the scraper plate of scraper-type material flow detection device, make inclination, the contact of compressing detecting device, show the running of belt feeder band material, and when scraper plate is naturally vertically downward time, scraper plate does not contact with detecting device contact, show that belt feeder is in dry run state, but the problem that scraper-type material flow detection device of the prior art exists has: (1) is when mass flow on belt feeder is too low or belt feeder material loading flows when intermittent, the just suitable inaccuracy of the detection effect of scraper-type material flow detection device, thereby have influence on the monitoring effect in belt feeder operation operation process, (2) easily malfunctioning reliability is lower because of long-time running for this scraper-type material flow detection device, and fault rate is high, and service life is short, and maintenance cost and intensity are all very large, have used at present seldom.
Also there is at present the employing of part belt feeder that the trial of vibration acceleration sensor detection belt feeder material loading stream information is installed on belt conveyor support, but owing to cannot reliable and effective separation having material and without material information, vibration acceleration sensor can only be arranged on material blanking port below, impact while relying on material to fall obtains and has or not material material to fall the information on this transmission belt, then the state of judgement estimation material stream on belt.The method, owing to not being the status information of material on direct-detection belt, is difficult to be applicable to all belt feeders, especially at a distance compared with long belt machine, is also difficult to meet the needs that the material stream under the interrupted material state of transportation detects and shows in real time.
In addition, China Patent No. ZL200920208710.8, Granted publication day is on May 26th, 2010, invention and created name is: non-contact type rotary shaft material flow detector, this application case relates to a kind of non-contact type rotary shaft material flow detector, coordinates with belt feeder spray sprinkling control system, comprising: casing; Runner, its center connects one first rotating shaft, and this first rotating shaft other end is positioned at casing; Magnet pulley, is connected in the other end of the first rotating shaft; Becket, ring internal diameter mates with magnet pulley external diameter, and is sheathed on outside magnet pulley, and the line of centers of magnet pulley is higher than the line of centers of becket, and two line of centerss are keeping parallelism on gravity face, and top, magnet pulley surface is that line contacts with becket endoporus top; Quadrupod, establishes and is 4 supports that 90 degree are divided equally, and these 4 supports are connected in becket, and quadrupod center connects one second rotating shaft; Swing arm, is connected in the other end of the first rotating shaft, is white by sagging shape; First, second contact, parallel, setting vertically downward, keep a spacing with swing arm, the second wafer and the same spacing of the parallel maintenance of the first contact, two contact one end are fixed on box house separately, and are connected with spray sprinkling control system electromagnetic valve positive pole, negative pole respectively by lead-in wire respectively; Bearing is set respectively in first, second rotating shaft, and these two bearings are individually fixed in casing two webs.This application case can detect belt have carry or no-load run, realize sprinkler system and carry out as required, but this application case complex structure, productive costs is high, operation and maintenance expense is high.
Summary of the invention
1. the technical matters that invention will solve
The object of the invention is to overcome the precision of belt feeder material stream detection in prior art and the deficiency of stability, a kind of method of inspection of belt feeder material stream checking system of transported material is provided, this belt feeder material stream checking system, by installing eccentric carrying roller, expect that by having or not the belt conveyor support vibration signal causing while stream obviously makes a distinction, install additional and can make on belt, there is material after this bias carrying roller and more than vibration signal amplitude during without material differs ten several times, detect this vibration information by vibration sensor again, through data acquisition system and aggregation of data processing, detect in real time and show the material stream of belt transporter, the material of realizing high reliability flows from motion tracking, and show in real time by ethernet is online on middle control terminal screen, by this material stream method of inspection, can realize the high reliability indirect detection of belt feeder material stream, maintenance cost is low, easy to use, detect accurately.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
The belt feeder material stream checking system of a kind of transported material of the present invention, comprise belt conveyor, side carrying roller, flat idler and belt conveyor support, this side carrying roller and flat idler are fixed on the top of belt conveyor support, belt conveyor is positioned at the top of side carrying roller and flat idler, belt feeder material flows in flat idlers all in checking system and has one at least for eccentric carrying roller, this bias carrying roller is oval roller, or the outer surface that this bias carrying roller is circular carrying roller is provided with eccentric block, arc transition between its eccentric block and circular carrying roller; On the belt conveyor support of above-mentioned setting-up eccentricity carrying roller, be fixed with vibration sensor, this vibration sensor is connected with data collection task station, and data collection task station is connected to industrial computer by Industrial Ethernet, and industrial computer is connected with telltale.
Further, the cross-sectional plane of described eccentric block is the thin crescent in thick middle both sides, and the interior thickness of this crescent eccentric block is 1:100～5:100 with the ratio of circular idler diameter.Preferably, the interior thickness of described crescent eccentric block and the ratio of circular idler diameter are 2:100.Verify by commerical test, in the time that the interior thickness of crescent eccentric block and the ratio of circular idler diameter are 2:100, belt conveyor has material and the belt conveyor support vibration signal that causes without material can obviously be made a distinction by vibration sensor, and eccentric block is less to the wearing and tearing of belt conveyor.
Further, the eccentricity of described oval roller cross-sectional plane is 0.05～0.20.Preferably, the eccentricity of described oval roller cross-sectional plane is 0.10.Verify by commerical test, in the time that the eccentricity of oval roller cross-sectional plane is 0.10, belt conveyor has material and the belt conveyor support vibration signal that causes without material can obviously be made a distinction by vibration sensor, and eccentric block is less to the wearing and tearing of belt conveyor.
Further, all flat idlers in described belt feeder material stream checking system are eccentric carrying roller; Described vibration sensor is vibration acceleration sensor or vibrating speed sensors.All adopt eccentric carrying roller for all flat idlers, the material situation that has or not of each position on whole piece belt conveyor is all detected, the material stream that is particularly suitable for interrupted material detects.
The method of inspection of the belt feeder material stream checking system of a kind of transported material of the present invention, the steps include:
(1) produce material stream vibration signal: belt feeder material flows in flat idlers all in checking system and has one at least for eccentric carrying roller, this bias carrying roller is oval roller, or the outer surface that this bias carrying roller is circular carrying roller is provided with eccentric block, arc transition between its eccentric block and circular carrying roller, material on belt conveyor is through the top of eccentric carrying roller, eccentric carrying roller produces material stream vibration signal, and this material stream vibration signal is passed to belt conveyor support;
(2) detect material stream vibration signal: be arranged on the material stream vibration signal producing in the vibration sensor detecting step (1) on belt conveyor support;
(3) acquisition and display of material stream vibration signal: the material stream vibration signal that in data collection task station acquisition step (2), vibration sensor detects, this material stream vibration signal transfers to industrial computer by Industrial Ethernet, industrial computer carries out data processing, storage to material stream vibration signal, and data processed result is sent to telltale and shows.
Preferably, in step (1), in belt feeder material stream checking system, all flat idlers are eccentric carrying roller, wherein: the cross-sectional plane of eccentric block is the thin crescent in thick middle both sides, the interior thickness of this crescent eccentric block is 1:100～5:100 with the ratio of circular idler diameter.
Preferably, in step (1), in belt feeder material stream checking system, all flat idlers are eccentric carrying roller, wherein: the eccentricity of oval roller cross-sectional plane is 0.05～0.2.
Preferably, the detailed process that in step (3), industrial computer carries out data processing, storage to material stream vibration signal is as follows: industrial computer is kept in the material stream vibration signal of each vibration sensor collection, do not exceed without material stream setting value for the material stream vibration signal value of same vibration sensor collection continuous 2 times or 2 above aviation values, judge that belt conveyor place that this vibration sensor is corresponding is without material; Exceed and have material stream setting value for continuous more than 2 times or the 2 times aviation values of material stream vibration signal value of same vibration sensor collection, judge that there is material at the belt conveyor place that this vibration sensor is corresponding, and above-mentioned processing data is shown in real time by telltale.
Principle of the present invention is:
On belt feeder not when setting-up eccentricity carrying roller, in the time that backing roll is held belt rolling-operation, no matter have or not material, caused vibration is that the mill that rolls is examined and caused more even mechanical vibration, and vibration velocity amplitude is less.The belt feeder material stream checking system of transported material of the present invention, setting-up eccentricity carrying roller on belt conveyor support on some or multiple diverse locations, vibration information while having or not material stream in order to obvious separation, near and installation vibration sensor below this bias carrying roller, for detection of this vibration signal, gather again the vibration signal of different vibratioies sensor on different belts by data acquisition system, differentiate the material stream information on belt feeder through data analysis processing, be presented in real time on supervisory control computer, the material flow tracing of realizing the many belt feeders of multipaths shows.When adopting after eccentric carrying roller, eccentric carrying roller can produce a motion of lifting up and down while holding belt rolling-operation, when cause has material, belt is very heavy, this momentum of lifting motion generation is very large, the vibration velocity amplitude that causes belt conveyor support to produce increases greatly, the eccentricity of oval roller cross-sectional plane is larger, or the interior thickness of crescent eccentric block is thicker, and the vibration signal amplitude causing is also larger.Therefore, adopt after eccentric carrying roller, can very significantly the data separation that has or not material on belt be come.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following remarkable result:
(1) method of inspection of the belt feeder material of a kind of transported material of the present invention stream checking system, by installing eccentric carrying roller, eccentric carrying roller can produce a motion of lifting up and down while holding belt rolling-operation, the vibration velocity amplitude that belt conveyor support is produced increases greatly, make on belt, there is material and more than vibration signal amplitude during without material differs ten several times, the mount vibration signal causing while having or not material stream can obviously be made a distinction;
(2) method of inspection of the belt feeder material of a kind of transported material of the present invention stream checking system, adopt running state and the material flow data of vibration sensor real-time detecting system, adopt Industrial Ethernet to build checking system, system performance is stable, reliability is high, safeguard that easily cost is low, can realize real-time detection and the material flow tracing management of belt feeder running state;
(3) cross-sectional plane of the eccentric block adopting in the present invention is the thin crescent in thick middle both sides, in the time that the interior thickness of this crescent eccentric block and the ratio of circular idler diameter are 1:100～5:100, the belt conveyor support vibration signal causing while having or not material stream can obviously make a distinction, facts have proved, have material and during without material the average velociity ratio of vibration signal be 10 times of left and right;
(4) eccentricity of the oval roller cross-sectional plane adopting in the present invention is 0.05～0.20 o'clock, the belt conveyor support vibration signal causing while having or not material stream can obviously make a distinction, facts have proved, have material and during without material the average velociity ratio of vibration signal be 10 times of left and right.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of the belt feeder material stream checking system of a kind of transported material of the present invention;
Fig. 2 is the section drawing of eccentric carrying roller in the present invention, and wherein figure (a) is oval roll structure, and figure (b) is circular carrying roller peripheral hardware eccentric block structure;
Fig. 3 is the system chart that adopts the checking system of Industrial Ethernet structure in the present invention.
Label declaration in schematic diagram: 1-belt conveyor; 2-side carrying roller; 3-flat idler; 301-eccentric block; The circular carrying roller of 302-; The oval roller of 303-; 4-belt conveyor support; 5-vibration sensor; 6-data collection task station; 7-Industrial Ethernet; 8-industrial computer; 9-telltale.
The specific embodiment
For further understanding content of the present invention, the present invention is described in detail by reference to the accompanying drawings.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, the belt feeder material stream checking system of a kind of transported material of the present invention, comprise belt conveyor 1, side carrying roller 2, flat idler 3 and belt conveyor support 4, this side carrying roller 2 and flat idler 3 are fixed on the top of belt conveyor support 4, belt conveyor 1 is positioned at the top of side carrying roller 2 and flat idler 3, the belt feeder material of this patent flows in flat idlers 3 all in checking system and has one at least for eccentric carrying roller, this bias carrying roller is oval roller 303, the cross-sectional structure of oval roller 303 as shown in Figure 2 (a) shows, the eccentricity of oval roller 303 cross-sectional planes is 0.05～0.20, or the outer surface that this bias carrying roller is circular carrying roller 302 is provided with eccentric block 301, its cross-sectional structure is as shown in Fig. 2 (b), arc transition between eccentric block 301 and circular carrying roller 302, the cross-sectional plane of this eccentric block 301 is the thin crescent in thick middle both sides, the interior thickness of this crescent eccentric block 301 is 1:100～5:100 with the ratio of circular carrying roller 302 diameters, on the belt conveyor support 4 of above-mentioned setting-up eccentricity carrying roller, be fixed with vibration sensor 5, vibration sensor 5 is vibration acceleration sensor or vibrating speed sensors, this vibration sensor 5 is connected with data collection task station 6, data collection task station 6 is connected to industrial computer 8 by Industrial Ethernet 7, industrial computer 8 is connected with telltale 9, and the system chart of the checking system that this employing Industrial Ethernet 7 builds as shown in Figure 3.
Below in conjunction with embodiment, the invention will be further described.
The belt feeder material stream checking system of a kind of transported material of the present embodiment, the material stream that is suitable for moving material detects.It comprises belt conveyor 1, side carrying roller 2, flat idler 3 and belt conveyor support 4, this side carrying roller 2 and flat idler 3 are fixed on the top of belt conveyor support 4, belt conveyor 1 is positioned at the top of side carrying roller 2 and flat idler 3, in belt feeder material stream checking system, eccentric carrying roller is installed at all flat idler 3 intervals, in the present embodiment, be, at interval of two existing circular flat idlers 3, an eccentric carrying roller is installed, this bias carrying roller is oval roller 303, the cross-sectional structure of oval roller 303 as shown in Figure 2 (a) shows, the eccentricity of oval roller 303 cross-sectional planes is 0.10, on the belt conveyor support 4 of above-mentioned setting-up eccentricity carrying roller, be fixed with vibration sensor 5, vibration sensor 5 adopts vibration acceleration sensor, this vibration sensor 5 is connected with data collection task station 6, data collection task station 6 is connected to industrial computer 8 by Industrial Ethernet 7, industrial computer 8 is connected with telltale 9, the system chart of the checking system that this employing Industrial Ethernet 7 builds as shown in Figure 3.
The method of inspection of the belt feeder material stream checking system of a kind of transported material of the present embodiment, the steps include:
(1) produce material stream vibration signal: the eccentric carrying roller of interval installing in belt feeder material stream checking system, this bias carrying roller is oval roller 303, material on belt conveyor 1 is through the top of eccentric carrying roller, eccentric carrying roller can produce a motion of lifting up and down while holding belt conveyor 1 rolling-operation, when cause has material, belt conveyor 1 is very heavy, this momentum of lifting motion generation is very large, cause the vibration velocity amplitude that belt conveyor support 4 produces greatly to increase, this material stream vibration signal is passed to belt conveyor support 4;
(2) detect material stream vibration signal: be arranged on the material stream vibration signal producing in vibration sensor 5 detecting steps (1) on belt conveyor support 4;
(3) acquisition and display of material stream vibration signal: the material stream vibration signal that in data collection task station 6 acquisition step (2), each vibration sensor 5 detects, this material stream vibration signal transfers to industrial computer 8 by Industrial Ethernet 7, industrial computer 8 carries out data processing, storage to material stream vibration signal, differentiate the material stream information on belt feeder through data analysis processing, realize the material flow tracing demonstration of the many belt feeders of multipaths, data processed result is sent to telltale 9 and shows.The concrete treating process that in the present embodiment, industrial computer 8 carries out data processing, storage to material stream vibration signal is: the vibration acceleration value of the collection of industrial computer 8 to each vibration sensor 5 is got and kept in, and the vibration acceleration value gathering for same vibration sensor 5 is got the aviation value of continuous 2 times and do not exceeded without material stream setting value 10m/s
2, judge that belt conveyor 1 place of these vibration sensor 5 correspondences is without material; The aviation value that the vibration acceleration value that gathers for same vibration sensor 5 is continuous 2 times exceedes material stream setting value 30m/s
2, judge that there is material at belt conveyor 1 place of these vibration sensor 5 correspondences, because the running velocity of belt transporter is fixed, according to above-mentioned data processed result, on telltale 9, show the state of material stream in animation mode by supervising software.For the different belt feeder system in scene, may have difference without material stream setting value and the occurrence that has material stream setting value, need to demarcate according to field condition.When concrete enforcement, can be different with the eccentricity of oval roller 303 cross-sectional planes according to different belt feeder status of equipments, the data of measuring according to in-place test are done suitable adjustment.
The belt feeder material stream checking system of the present embodiment, the eccentric carrying roller of interval installing, the belt feeder delivery system that is applicable to moving material is used, on belt conveyor 1, there is material and vibration signal amplitude during without material differs 10 times of left and right, belt conveyor support 4 vibration signals that cause while having or not material stream can obviously be made a distinction, adopt Industrial Ethernet 7 to build checking system, system performance is stable, reliability is high, safeguard easily, cost is low, can realize real-time detection and the material flow tracing management of belt feeder running state.
The belt feeder material stream checking system of a kind of transported material of the present embodiment, the material stream that is suitable for interrupted material detects.It comprises belt conveyor 1, side carrying roller 2, flat idler 3 and belt conveyor support 4, this side carrying roller 2 and flat idler 3 are fixed on the top of belt conveyor support 4, belt conveyor 1 is positioned at the top of side carrying roller 2 and flat idler 3, in belt feeder material stream checking system, all flat idlers 3 are eccentric carrying roller, the outer surface that eccentric carrying roller is circular carrying roller 302 is provided with eccentric block 301, its cross-sectional structure is as shown in Fig. 2 (b), arc transition between eccentric block 301 and circular carrying roller 302, the cross-sectional plane of this eccentric block 301 is the thin crescent in thick middle both sides, the interior thickness of this crescent eccentric block 301 is 2:100 with the ratio of circular carrying roller 302 diameters, on belt conveyor support 4 below setting-up eccentricity carrying roller, vibration sensor 5 is installed, vibration sensor 5 adopts the velocity of vibration sensor of the Shanghai CZ9300 of vibration measuring self-reacting device Co., Ltd series, this vibration sensor 5 is connected with data collection task station 6, data collection task station 6 is connected to industrial computer 8 by Industrial Ethernet 7, industrial computer 8 is connected with telltale 9, the system chart of the checking system that this employing Industrial Ethernet 7 builds as shown in Figure 3.
The method of inspection of the belt feeder material stream checking system of a kind of transported material of the present embodiment, the steps include:
(1) produce material stream vibration signal: the eccentric carrying roller of installing in belt feeder material stream checking system, the outer surface that this bias carrying roller is circular carrying roller 302 is provided with eccentric block 301, arc transition between its eccentric block 301 and circular carrying roller 302, material on belt conveyor 1 is through the top of eccentric carrying roller, eccentric carrying roller can produce a motion of lifting up and down while holding belt conveyor 1 rolling-operation, when cause has material, belt conveyor 1 is very heavy, this momentum of lifting motion generation is very large, cause the vibration velocity amplitude that belt conveyor support 4 produces greatly to increase, this material stream vibration signal is passed to belt conveyor support 4,
(2) detect material stream vibration signal: be arranged on the material stream vibration signal producing in vibration sensor 5 detecting steps (1) on belt conveyor support 4;
(3) acquisition and display of material stream vibration signal: the material stream vibration signal that in data collection task station 6 acquisition step (2), each vibration sensor 5 detects, this material stream vibration signal transfers to industrial computer 8 by Industrial Ethernet 7, industrial computer 8 carries out data processing, storage to material stream vibration signal, differentiate the material stream information on belt feeder through data analysis processing, realize the material flow tracing demonstration of the many belt feeders of multipaths, data processed result is sent to telltale 9 and shows.The vibration speed value in the present embodiment, same vibration sensor 5 being gathered is got the aviation value of continuous 10 times and is flowed setting value without material and have material stream setting value to compare, nothing material flows setting value and has material to flow setting value can be different from the ratio of circular carrying roller 302 diameters according to the interior thickness of different belt feeder status of equipments and crescent eccentric block 301, the data of measuring according to in-place test are done suitable adjustment, other steps are with embodiment 1, then by data processed result, on telltale 9, show the state of material stream in animation mode by supervising software, the accuracy of detection of data and reliability are higher like this.
The belt feeder material stream checking system of the present embodiment, all flat idlers 3 are eccentric carrying roller, thereby can make Real-Time Monitoring to the material situation that has or not of each point on whole piece belt, the belt feeder delivery system that is applicable to interrupted material is used, on belt conveyor 1, there is material and vibration signal amplitude during without material differs 10 times of left and right, belt conveyor support 4 vibration signals that cause while having or not material stream can obviously be made a distinction, adopt Industrial Ethernet 7 to build checking system, system performance is stable, reliability is high, safeguard easily, cost is low, can realize real-time detection and the material flow tracing management of belt feeder running state.
The belt feeder material stream checking system basic structure of the present embodiment and method of inspection are with embodiment 1, difference is: in the present embodiment, in belt feeder material stream checking system, only have a flat idler 3 for eccentric carrying roller, this bias carrying roller is oval roller 303, the eccentricity of oval roller 303 cross-sectional planes be 0.05, the material vibrating signal producing by this oval roller 303, can detect in real time on this belt conveyor 1 and whether have material, this eccentricity can be done small adjustment according to on-the-spot actual conditions, until detect have material and vibration signal during without material is enough to be distinguished by vibration sensor 5.
The belt feeder material stream checking system basic structure of the present embodiment and method of inspection are with embodiment 1, difference is: the eccentricity of oval roller 303 cross-sectional planes in the present embodiment is 0.20, this eccentricity can be done small adjustment according to on-the-spot actual conditions, until detect have material and vibration signal during without material is enough to be distinguished by vibration sensor 5.
The belt feeder material stream checking system basic structure of the present embodiment and method of inspection are with embodiment 2, difference is: the interior thickness of the crescent eccentric block 301 in the present embodiment is 1:100 with the ratio of circular carrying roller 302 diameters, the concrete size of this crescent eccentric block 301 can be done small adjustment according to on-the-spot actual conditions, until detect have material and vibration signal during without material is enough to be distinguished by vibration sensor 5.
The belt feeder material stream checking system basic structure of the present embodiment and method of inspection are with embodiment 2, difference is: the interior thickness of the crescent eccentric block 301 in the present embodiment is 5:100 with the ratio of circular carrying roller 302 diameters, the concrete size of this crescent eccentric block 301 can be done small adjustment according to on-the-spot actual conditions, until detect have material and vibration signal during without material is enough to be distinguished by vibration sensor 5.
Below schematically invention and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the invention aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection scope of the present invention.
Claims (2)
1. a method of inspection for the belt feeder material of transported material stream checking system, the steps include:
(1) produce material stream vibration signal: in belt feeder material stream checking system, all flat idlers (3) are eccentric carrying roller, this bias carrying roller is oval roller (303), the eccentricity of oval roller (303) cross-sectional plane is 0.05～0.2, or this bias carrying roller is that the outer surface of circular carrying roller (302) is provided with eccentric block (301), arc transition between its eccentric block (301) and circular carrying roller (302), the cross-sectional plane of eccentric block (301) is the thin crescent in thick middle both sides, the ratio of the interior thickness of this crescent eccentric block (301) and circular carrying roller (302) diameter is 1:100～5:100, material on belt conveyor (1) is through the top of eccentric carrying roller, eccentric carrying roller produces material stream vibration signal, this material stream vibration signal is passed to belt conveyor support (4),
(2) detect material stream vibration signal: be arranged on the material stream vibration signal producing in vibration sensor (5) detecting step (1) on belt conveyor support (4);
(3) acquisition and display of material stream vibration signal: the material stream vibration signal that in data collection task station (6) acquisition step (2), vibration sensor (5) detects, this material stream vibration signal transfers to industrial computer (8) by Industrial Ethernet (7), industrial computer (8) carries out data processing, storage to material stream vibration signal, and data processed result is sent to telltale (9) and shows.
2. the method for inspection of the belt feeder material of a kind of transported material according to claim 5 stream checking system, it is characterized in that: the detailed process that in step (3), industrial computer (8) carries out data processing, storage to material stream vibration signal is as follows: the material stream vibration signal that industrial computer (8) gathers each vibration sensor (5) is kept in, the material gathering for same vibration sensor (5) flows continuous more than 2 times or the 2 times aviation values of vibration signal value and does not exceed without material stream setting value, judges that the belt conveyor (1) of this vibration sensor (5) correspondence is located without material; Continuous more than 2 times or the 2 times aviation values of material stream vibration signal value that gather for same vibration sensor (5) exceed material stream setting value, judge that the belt conveyor (1) that this vibration sensor (5) is corresponding located material, and above-mentioned processing data is shown in real time by telltale (9).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210130589.8A CN102633094B (en) | 2012-04-28 | 2012-04-28 | Belt conveyor material flow detection system for conveying materials and detection method thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210130589.8A Division CN102633094B (en) | 2012-04-28 | 2012-04-28 | Belt conveyor material flow detection system for conveying materials and detection method thereof |
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| CN201410086169.3A Active CN103803267B (en) | 2012-04-28 | 2012-04-28 | A kind of method of inspection of belt conveyor material flow checking system of transported material |
| CN201210130589.8A Expired - Fee Related CN102633094B (en) | 2012-04-28 | 2012-04-28 | Belt conveyor material flow detection system for conveying materials and detection method thereof |
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| CN107082253B (en) * | 2017-05-27 | 2019-05-28 | 秦皇岛港股份有限公司 | Belt feeder operation monitoring system and its method |
| CN113834922A (en) * | 2020-06-24 | 2021-12-24 | 上海梅山钢铁股份有限公司 | Method for online drying coke and measuring mechanical strength |
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| CN2159551Y (en) * | 1993-04-19 | 1994-03-23 | 沈阳市东华胶带机安全技术研究所 | Induced material flow detector |
| CN2240141Y (en) * | 1995-12-20 | 1996-11-13 | 徐厚胜 | Simple single supporting roller bearer of balance |
| EP1890198B1 (en) * | 2006-08-18 | 2010-06-30 | Konica Minolta Holdings, Inc. | Belt Conveying Device, Image Forming Apparatus Provided Therewith And Adjustment Method Of Belt Skew Controller In Belt Conveyance Device |
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| CN200993594Y (en) * | 2006-12-27 | 2007-12-19 | 山西新元自动化仪表有限公司 | Non-speed-sensor belt conveyer scale |
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| CN201485011U (en) * | 2009-08-31 | 2010-05-26 | 宝山钢铁股份有限公司 | Non-contact type rotary shaft material flow detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103803267B (en) | 2016-01-20 |
| CN102633094B (en) | 2014-12-03 |
| CN102633094A (en) | 2012-08-15 |
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