CN2852052Y - Portable device for quick detection of running axial line of rotary kiln - Google Patents

Portable device for quick detection of running axial line of rotary kiln Download PDF

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Publication number
CN2852052Y
CN2852052Y CNU2005200508424U CN200520050842U CN2852052Y CN 2852052 Y CN2852052 Y CN 2852052Y CN U2005200508424 U CNU2005200508424 U CN U2005200508424U CN 200520050842 U CN200520050842 U CN 200520050842U CN 2852052 Y CN2852052 Y CN 2852052Y
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China
Prior art keywords
rotary kiln
eddy current
displacement sensor
sensor
current displacement
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CNU2005200508424U
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Chinese (zh)
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李学军
何宽芳
张美阳
沈意平
蒋玲莉
宾光富
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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Abstract

The utility model relates to a portable device for the quick detection of the running axial line of a rotary kiln, which is composed of a sensor supporting device, integration type signal collecting device and a portable computer device. A sensor is installed in the zero strained radial direction under a rotary kiln cylinder to measure running axial line. The integration type signal collecting device and the portable computer device are combined. The axial line measurement modules are integrated. The defects of the existing measuring method, such as difficult installation for the measuring device in high space, complicated measuring and operating process, long measuring time, big error of a measuring system, and low detection accuracy, are overcome. The device is suitable for different kinds of rotary kilns of 2 to 9 steps. The structure of the hardware is compact and the device has own power supply and light weight. The utility model has a friendly man-machine interface and convenient operation and use and is provided with axial line measurement modules. The device has the advantages of stable working performance and high reliability and is suitable for adverse working environment of high temperature and much dust of the rotary kiln. The utility model can be widely used in enterprises, such as chemical engineering, cement, metallurgy, etc. which take the rotary kilns as the core production equipment.

Description

The mancarried device that is used for rotary kiln running axis fast detecting
Technical field
The utility model relates to rotary kiln running axis pick-up unit, particularly a kind of mancarried device that is used for rotary kiln running axis fast detecting.
Background technology
Rotary kiln is the nucleus equipment in the industry production flow processs such as cement, metallurgy, chemical industry, weighs usually and does ton, grew hundred meters, and supporting is organized several 2~9 grades, is a kind of heavy duty, overlength, many fulcrums, static indeterminacy operational system.In the rotary kiln running owing to the uneven depression on the change of the irregular wear of bearing assembly, environment temperature, basis, make reason such as alignment error, its operation axis is offset.According to summary of experience for many years, when cylinder of rotary kiln operation misalignment of axe reach ± during 10mm, supporting moment of flexure and barrel stress increase by 3 times approximately, the support pressure on the support roller increases by 1 times.Therefore, the rotary kiln running journal offset has material impact to its each position is stressed with each several part mechanical wear, thereby the equipment component life-span is sharply shortened, and causes a series of mechanical faults and security incident.This not only strengthens energy loss, reduces production efficiency, increases maintenance cost, and even more serious problem is to cause the interruption of whole production flow process to cause great production loss.Big-and-middle-sized rotary kiln during metallurgical, cement industry is produced, a kiln stops production and caused the production loss of hundreds thousand of units in one day usually, the support roller breaking axis takes place one time, not only need change surplus the upkeep cost 20 of support roller ten thousand yuan, and causing the production loss of millions of units (even up to ten million unit), a large-sized rotary kiln just can cause several ten million yuan loss every year thus." as long as Dayao change, just have 10,000,000 " Here it is to the vivid description of rotary kiln safety in production significance level.Therefore, guaranteeing rotary kiln safety, healthy operation efficiently, is that corresponding enterprise raises the efficiency, ensures the quality of products, reduces cost, the important channel of create beneficial result.
In producing at present to the management and the maintenance of rotary kiln running, employing be a kind of management and maintenance mode that relies on experience to instruct; To the adjustment of rotary kiln running state, be by calm attitude shaft centerline measurement to kiln, carry out in conjunction with some empirical Calculation.Exist that rotary kiln actual motion axis status is indeterminate, stressed unclear, the axially-movable of each grade support roller not easy-regulating, the no record of running status historical data, the uncomprehending problem of variation tendency.Moreover the rotary kiln running axis will change, and service condition constantly worsens, and need in time adjust to certain degree, owing to can not accurately grasp its operation axis, also just not know when this adjustments of rotary kiln, how the best adjustment.Therefore,, instruct, fail to understand fully the internal association of mechanics of system state, health status and axis owing to lack its corresponding theory although in producing at present the management and the maintenance work of rotary kiln are paid much attention to; Trouble-saving, health maintenance to equipment lack effective technical guarantee, and mechanical fault and security incident still occur repeatedly in the production, and economic loss is very serious.Therefore, the detection and the analytic system of development rotary kiln health maintenance realize the scientific management to equipment operation, are to be the key issue that the enterprise of production core increases economic efficiency and needs to be resolved hurrily with the rotary kiln.
To the detection of rotary kiln axis is most important work content during rotary kiln device is safeguarded always, also is the years of researches focus to the exploitation of its axis detection technique.Because rotary kiln length is long, supporting group number is many, barrel diameter is big; Be in the abominable working environment of high temperature, many dusts; There is bigger out-of-roundness sum of errors distortion in drum surface itself, realizes that online detection is difficult for to its operation axis.Early eighties rests on the level with transit and spirit-leveling instrument, the static kiln axis of Laser Measuring abroad; Late nineteen eighties, the dynamic measuring method of the operation axis that begins one's study.External Poland has initiated rolling ring position measurement method; Denmark FLS Corp has developed laser rolling ring mensuration; Germany this (Polysius) company of Berli turtledove has developed a kind of Polscan support roller position measuring system that can measure axis under static and dynamic condition; The Zhang Yun of China Wuhan Polytechnical Univ has developed rotary kiln axis parameter detecting system-" KAS " measuring system, and it is made up of 3 displacement transducers, multichannel displacement transducer, noncontact Electromagnetic Position Sensor, magnetic initiator, microcomputer, rolling ring and support roller circumferential measurements instrument, rolling ring and cylindrical shell gap analyzer, electronic theodolite, spirit-leveling instrument etc.Three displacement transducers are installed on cylindrical shell straight horizontal radial line and the straight vertical radial line, and diameter is measured the drum surface position simultaneously, and position transducer is measured the position, angle of cylindrical shell.Wherein two horizon sensor calculated signals cylindrical shell central horizontal positions and mean radius, vertical reference signal and the rolling ring diameter of having measured, rolling ring calculate cylindrical shell central vertical position with the gap of cylindrical shell.Above-mentioned various detection method is all existing following deficiency in varying degrees: 1. measurement mechanism complexity, costliness, and loaded down with trivial details, the fallibility of measuring operation needs the operating personnel of specialty; 2. eminence installs and measures device, location, installation, fixing difficulty, and observational error is big, is not easy to fast detecting; 3. need to calculate centre of gyration position that measuring method, systematic error are big by rolling ring and cylindrical shell gap; 4. measuring point can not be eliminated the error that rolling ring, cylindrical shell out-of-roundness cause not for a long time; 5. measuring accuracy is not high, and horizontal direction is ± 1.5mm that vertical direction is ± 2.5mm.For these reasons, the axis detection technique that has limited rotary kiln applying at the scene also seldom has enterprise can finish the online detection of its operation axis voluntarily, and the still static axis that generally adopts in the production detects.And rotary kiln axis is adjusted to straight line by calm attitude, and is in service owing to each grade temperature rise difference, and the operation axis exactly is not a straight line, and also constantly variation in service.Thereby the quick online detection of realization rotary kiln running axis, be the key issue that needs to be resolved hurrily in the rotary kiln health maintenance technology.
Summary of the invention
At above-mentioned situation, the utility model provides a kind of mancarried device that is used for rotary kiln running axis fast detecting, and this device can be realized the fast detecting to the rotary kiln running axis, and is applicable to the rotary kiln of different size specification; By to rotary kiln running axis fast detecting, grasp its running status in real time, thereby realize purpose the equipment health maintenance.
To achieve these goals, a kind of mancarried device that is used for rotary kiln running axis fast detecting, this device comprises sensor fulcrum arrangement, integrated form signal pickup assembly and portable computer device, described sensor fulcrum arrangement comprises the current vortex displacement induction of signal key of the positioning support seat, removable support, eddy current displacement sensor and the setting of corresponding eddy current displacement sensor that are fixed on each grade of rotary kiln, and described removable support comprises sleeve, magnetic force suction base and connecting rod; Described integrated form signal pickup assembly comprises and eddy current displacement sensor A, the fore-lying device A of B correspondence, B, the digital display gauge outfit, eddy current displacement sensor power supply and usb data capture card, lithium ion battery, the lithium ion cell charging circuit, DC-to-dc (DC/DC) mu balanced circuit is formed, described eddy current displacement sensor A, B is installed on the removable support respectively, be connected to fore-lying device A by cable, B, fore-lying device A, B connects the usb data capture card, simultaneously, fore-lying device A, B connects digital display gauge outfit and DC-to-dc (DC/DC) mu balanced circuit, wherein lithium ion battery input end and lithium ion cell charging circuit output end interconnect, lithium ion battery output terminal and DC-to-dc (DC/DC) mu balanced circuit input end interconnects, described portable computer device comprises notebook computer and is arranged at the supporting adjustment computing module and the shaft centerline measurement module of notebook computer that portable computer device passes through USB interface, cable and integrated form signal pickup assembly, the sensor fulcrum arrangement is electrically connected mutually.
For implementation structure optimization, stable performance, be easy to carry, easy to use, reach the purpose that quick and precisely detects of operation axis, its further step is:
Eddy current displacement sensor on the described sleeve is arranged on becoming 15 ° ± 1 ' angle in the radial direction and with vertical and adjusting of both sides, cylindrical shell bottom zero strain on vertical and horizontal direction.
Described shaft centerline measurement module is applicable to the rotary kiln of 2~9 grades of different size specifications.
The utility model device adopts at the sensor installation in the radial direction of the following zero strain of cylinder of rotary kiln and measures the operation axis, in conjunction with integrated form signals collecting and portable computer device, the technical scheme of collection shaft centerline measurement module one, having overcome existing detection method exists the measurement mechanism eminence that difficulty is installed, the measurement procedure complexity, Measuring Time is long, and the measuring system error is big, the defective that accuracy of detection is not high.Make this device have the system architecture compactness, self-powered, in light weight, simple to operate, easy to use.System moves axis and detects fast, finishes 1 kiln axis detection and analysis, processing and is no more than 2 man-hours; System's accuracy of detection height, axis accuracy of detection vertical and horizontal direction all is better than ± 1.5mm.Being suitable for open-air independently working, is a kind of reliable, the practical tool that realizes rotary kiln health maintenance and information optimization decision-making.The utility model device also has the characteristics of the rotary kiln that is suitable for 2~9 grades of different sizes under high temperature, the abominable working environment of many dusts.Using the utility model device can carry out fast detecting to the rotary kiln running axis well, thereby guarantees that rotary kiln safety, efficient healthy operation and running rate significantly improve.It is the enterprise of core production equipment with the rotary kiln that the utility model device can be widely used in chemical industry, cement, metallurgy etc.
Below in conjunction with the drawings and specific embodiments the utility model device is described in further detail.
Description of drawings
Fig. 1 is the system structural framework figure of the utility model device.
Fig. 2 is the sensor fulcrum arrangement mounting structure synoptic diagram of the utility model device.
Fig. 3 is the eddy current displacement sensor contour structures synoptic diagram of the utility model device.
Fig. 4 is the integrated form signal pickup assembly structural representation of the utility model device.
Fig. 5 is the eddy current displacement sensor power circuit diagram among Fig. 3.
Fig. 6 is the portable computer device functional module master interface synoptic diagram of the utility model device.
Fig. 7 is that supporting adjustment is calculated surface chart.
Fig. 8 is a shaft centerline measurement module process flow diagram.
Fig. 9 is the function axis calculation flow chart among Fig. 8.
Figure 10 is the sampled value computing function process flow diagram among Fig. 8.
Figure 11 is the ripple position judgment function process flow diagram among Fig. 8.
Figure 12 is the ripple point midway discriminant function process flow diagram among Fig. 8.
Figure 13 is the wave number computing function process flow diagram among Fig. 8.
Figure 14 is the part source program of Fig. 7 shaft centerline measurement module.
Embodiment
Referring to accompanying drawing, a kind of mancarried device that is used for rotary kiln running axis fast detecting, this device is integrated in one by sensor fulcrum arrangement 1, integrated form signal pickup assembly 2 and portable computer device 3.The eddy current displacement sensor 11A in the sensor fulcrum arrangement 1 wherein, B is installed in respectively on the removable support 18, be connected to fore-lying device A by cable, B, fore-lying device A, B connects the usb data capture card, simultaneously, fore-lying device A, B connects digital display gauge outfit and DC-to-dc (DC/DC) mu balanced circuit, wherein three joint lithium ion battery input ends and lithium ion cell charging circuit output end interconnect, three joint lithium ion battery output terminals and DC-to-dc (DC/DC) mu balanced circuit input end interconnect, portable computer device 3 comprises notebook computer and is arranged at the supporting adjustment computing module and the rotary kiln axis measurement module that is applicable to 2~9 grades of different size specifications of notebook computer that portable computer device 3 passes through USB interface, cable and integrated form signal pickup assembly 2, sensor fulcrum arrangement 1 is electrically connected mutually.This apparatus structure frame diagram as shown in Figure 1.
Shown in the accompanying drawing 2 is the sensor fulcrum arrangement 1 mounting structure synoptic diagram of this device, comprise removable support 18, eddy current displacement sensor 11 and corresponding eddy current displacement sensor 11A, B is provided with current vortex displacement induction of signal key 16, positioning support seat 15.Removable support 18 is by sleeve 12, connecting rod 13, and magnetic force suction base 14 is formed, current vortex displacement induction of signal key 16 is a rectangular square key, square key length is sensor 11 more than 1.5 times of 19 diameter d of probe, and for ease of installing, adjusting, length generally is chosen for 3 times of d; Width is 1.6 times of sensor 11 probes 19 diameters; The height of current vortex displacement induction of signal key 16 is determined according to the out-of-roundness of tested cylindrical shell 17 and the range of sensor, and guarantee that the displacement measurement of part beyond the current vortex displacement induction of signal key 16 exceeds the linear measurement range of eddy current displacement sensor 11, during installation, this current vortex displacement induction of signal key 16 is fixed on cylinder of rotary kiln 17 surfaces, as shown in Figure 2.Magnetic force suction base 14 is fixed on the connecting rod 13, and two sleeves 12 on the removable support 18 become 15 ° ± 1 ' angle with vertical, and sleeve 12 positions are vertical and horizontal direction is adjustable.When removable support 18 is installed, positioning support seat 15 and removable support 18 are demarcated together, guaranteed the corresponding space position of removable support 18 at each grade of rotary kiln.After demarcating well, stationary positioned supporting base 15 is realized the quick location and the installation of removable supports 18 by magnetic force suction base 14.By adjusting the position of sleeve 12, with the requirement of suitable different size specification, and guarantee that eddy current displacement sensor 11 is installed in 17 times both sides zero strains of cylindrical shell in the radial direction, after adjustment finishes in vertical and horizontal direction; Fixed muffle 12 is on connecting rod 13.When eddy current displacement sensor 11 was installed, the measurement signal value by adjusting current vortex displacement induction of signal key 16 was at the linear mid point of transducer range, adjust finish after, fixedly eddy current displacement sensor 11 is on sleeve 12.
Shown in the accompanying drawing 3 is the eddy current displacement sensor 11 contour structures synoptic diagram of this device, comprises probe 19, and front end 20 connects polished rod 21, threaded rod 22.Eddy current displacement sensor 11 probe 19 is converted to voltage signal with displacement signal, in order to obtain effective sampled data waveform, the area on the corresponding current vortex displacement induction of signal of eddy current displacement sensor 11 probes, 19 surface diameter sizes key 16 surfaces has certain requirement; Front end 20 is to connect probe 19 and other parts; Connecting polished rod 21 is need be accurately machined, and its precision is the key of eddy current displacement sensor 11 positional precisions; Threaded rod 22 is piths that eddy current displacement sensor 11 is installed, fixed, regulates; Tail end mills into the four directions is convenient to turn loading and unloading and the adjustment that nut makes things convenient for eddy current displacement sensor 11.The position accuracy demand that needs to guarantee has: the end face of 19 links of popping one's head in has requirement with the verticality that is connected polished rod 21 centers, and the external diameter of probe 19 has requirement with the right alignment that is connected polished rod 21 centers; The joint face of 19 links of popping one's head in has the surfaceness requirement with the locating surface that is connected polished rod 21; Then need to guarantee to connect the diameter of polished rod 21 and the quality of fit of sleeve 12 for dimensional accuracy.
Accompanying drawing 4 is integrated form signal pickup assembly structural representations of this device.By two wide range eddy current displacement sensor 11A, B and fore-lying device A thereof, B, digital display gauge outfit, eddy current displacement sensor 11 power supplys and usb data capture card are formed.The linearity measuring range selectable range of electric vortex displacement sensor probe 19 is at least 20mm; The condition of digital display gauge outfit work is: operating voltage is+5V, and indication range is 0~10V, displayed value and input value be 1 to 1 as: its demonstration of input 5V is exactly 5.00V, and the gauge outfit scale is set arbitrarily; The USB capture card is selected requirement for use: operating voltage is+5V that resolution is>12bit sample frequency>100KHz.During measurement, eddy current displacement sensor 11 is installed on the removable support 18 as shown in Figure 2, and the voltage signal of sensing is converted to digital signal by the usb data capture card and reaches computer installation 3 by USB interface after the fore-lying device processing and amplifying; Simultaneously, the digital display gauge outfit shows the voltage signal that eddy current displacement sensor 11 is sensed in real time.Eddy current displacement sensor 11 is to be the rechargeable lithium ion batteries group power supply of 1800mAH by three joint capacity, and assurance eddy current displacement sensor 11 can be worked more than two hours under the independent situation of powering of battery.Power source voltage output ripple is ± 50mV to guarantee that output voltage is constant in the process that cell voltage constantly descends.
Accompanying drawing 5 is eddy current displacement sensor 11 power circuit diagrams of this device.These eddy current displacement sensor 11 power circuit diagrams comprise lithium ion cell charging circuit, DC-to-dc (DC/DC) mu balanced circuit.The lithium ion charging circuit has adopted MAXIM company to produce in the accompanying drawing 5, can fill the special chip MAX1757 of three joint lithium ion batteries at most, utilize the outer meeting resistance R8 between the CSSN pin of MAX1757 to detect input current in the circuit, the ISETIN pin is provided with detection threshold, the battery maximum charging current is determined that by the magnitude of voltage of ISETOUT pin this voltage is regulated by the divider resistance that is connected between REF and the 6ND.When the ISETOUT pin met REF, electric current was maximal value (1.5A), and we are connected to the REF pin with the ISETOUT pin in the present embodiment, and maximum charging current is 1.5A.External divider resistance R6 and R7 by the VADJ pin are used for adjusting the battery charge final voltage, and R6 and R7 resistance precision should be more than 1%, and resistance should be no more than 100K Ω.The battery joint number is provided with by the CELL pin, and the CELL pin connects GND, floating sky or meets REF represents that respectively the battery joint number is 1 joint, 2 joints, 3 joints, here the floating sky of CELL pin.Circuit is provided with timer and Temperature Detector provides supplementary protection for battery charge, because charge efficiency does not reach 100%, the duration of charging limit value should leave surplus.Temperature Detector should be connected between THM and the GND, should install near battery, Temperature Detector can select to have the thermistor of negative temperature coefficient, resistance is 10K Ω in the time of+25 ℃, Philips, Cornerstone Sensitive Object, Fenwall electronics corporation all can provide suitable product, MAX1757 is with the frequency detecting battery temperature of 1.2Hz, and present embodiment is with a 10K Ω resistance eutral grounding.Worry wave circuit after the inner MOSFET pipe of D12, C14 and the L3 compositing chip on-off action.Preliminary filling can be set, completely fill the time control that ends charging process with the top at TIIMER1 external capacitor C17, external capacitor C18 can be provided with and fill time control soon on TIMER2.Power requirement can be powered to sensor in to battery charge.When disconnecting charging, automatically transfer rechargeable battery to eddy current displacement sensor 11 power supplies, this function is realized by two 1N5817 schottky diode D13, D14 in the charging circuit: D14 disconnects when the charging input, D14 conducting when charging disconnects, realized continual function, current reflux when D13 is used for preventing powered battery.MAX1757 has three battery charging state indication output end FASTCHG, FULLCHG and FAULT in addition, and these ports are Lou level open circuit output, can be used for driving LED.FASTCHG is used to indicate charger to be in the state that fills soon, is constant current charging mode; FULLCHG represents that charger has been finished and fills state (battery capacity is near 85%) soon and be in the constant-voltage charge pattern; FAULT represents that then charger detects charge fault, and charging stops, and selects for use φ 3mmLED luminotron to show with three pilot lamp respectively, and using of fault is red, and other is with green, and R9, R10, R11 are that current-limiting resistance is connected in series luminotron respectively.
Three joint lithium ion battery groups need simultaneously to the power supply of digital display gauge outfit to eddy current displacement sensor 11 power supplies the time, and concrete electric power thus supplied is: working sensor voltage is ± 12V that the operating voltage of digital display gauge outfit is+5V.The voltage that battery provides (being the input voltage of mu balanced circuit) changes between 12.6~8.75V.DC-to-dc in the accompanying drawing 5 (DC/DC) mu balanced circuit is to adopt DC-to-dc (DC/DC) Voltage stabilizing module, so circuit is simple relatively: LED8 is a power light in the circuit, and capacitor C 20, EC6 consider ripple electric capacity to be used to slow down pulsation of current.
Portable computer device 3 shown in the accompanying drawing 1, this device 3 are provided with the supporting of embedding and adjust computing module and shaft centerline measurement module, and wherein the function of supporting adjustment computing module is to calculate the adjusted value of removable support 18 sleeves 12 on height and width automatically; The function of shaft centerline measurement module comprises that data acquisition, axis calculate.
Shown in the accompanying drawing 7 is that supporting adjustment is calculated surface chart.During operation, click main interface menu such as accompanying drawing 6 supporting adjustment calculating, move this module ejection parameter the interface is set, import the structural parameters of kiln by the user, click computed push-buttom and just calculate the adjusted value of removable support 18 sleeves 12 on height and width automatically, result of calculation is used to adjust the position of removable support 18 sleeves 12, guarantees that eddy current displacement sensor 11 is installed in two 15 ° of null displacement directions.
Shown in the accompanying drawing 8 is the shaft centerline measurement module process flow diagram of present embodiment, and wherein the data acquisition of shaft centerline measurement module, judgement and calculation procedure are weaved into corresponding function, and wherein main function structure and flow scheme design are as follows:
1. sampling function is expressed as cyhs, and function is a do-nothing function, return function value not, and sampled result is stored in the overall array sampled value (cyz).
2. axis computing function, function letter is expressed as Zxjshs, and function return value is F1, F2, is used to judge eddy current displacement sensor 11A, the validity of B sampling.This function process flow diagram as shown in Figure 9.When calling this function, show earlier the interface that is provided with of each sensor, measurement parameter, sampling parameter, parameter is just called this function after setting completed, need call sampled value computing function (Cyzjshs) in this function.
3. sampled value computing function, letter representation is Cyzjshs, this function calls after sampling is finished.Function return value is the mean value Cgqwyz[2 of the measurand that arrives of sensor from sensor probe 19 distances].This function process flow diagram as shown in Figure 10, this function needs calling station discriminant functions (Wzpdhs) determine that initial value position, the mid point discriminant function (Zdwzpdhs) of sampled signal waveform are used to judge the point midway of sampled signal waveform so that carry out the size that wave number calculating, wave number computing function (Bzjshs) are used for calculating wave number.
4. ripple position judgment function, letter representation is Bwzpdhs, function is a do-nothing function, return function value not, the function process flow diagram is as shown in Figure 11.When calculating sensor Displacement Measurement value, call the position that this function is judged signal wave, need import sampled signal (cyz) when calling into.The result who judges is stored in the starting point of judging as point midway in the sensor shift value array (cgqwyz[0]).
5. ripple point midway discriminant function is expressed as Bzdwzpdhs (cyz).This function is the integer function, and process flow diagram as shown in Figure 12.When the signal wave size that calculating sensor is measured, call the point midway that this function is judged signal wave, this position is the mid point that calculates as wave number, need import sampled signal (cyz) when calling into.When not determining point midway, rreturn value is 0; When determining point midway, point midway is a function return value.
6. wave number computing function, letter representation is Bzjshs (cyz), function is a do-nothing function, return function value not, the function process flow diagram is as shown in Figure 13.After judging the signal wave position of sensor measurement, call the size of each signal wave number of this function calculation, need import sampled signal (cyz) when calling into, 3 wave bands of this function calculation, each wave band is 21 points that the center collected with the point midway, turns back to sampled value computing function (Cyzjshs) then and averages.Two eddy current displacement sensor 11A, the result of calculation of B measuring-signal is stored in the sensor shift value array (cgqwyz[2]).Need to call ripple point midway discriminant function (Bzxwzpdhs) in this function.
During operation, click main interface menu shaft centerline measurement as shown in Figure 6, eject the parameter that shows each sensor, measurement parameter, sampling parameter the interface is set, the startup sampling routine carries out data acquisition and ejects the wait interface simultaneously, after finishing, collection preserves sampled data, based on sampled data cyz, call axis computing function Zxjshs and just can calculate sensor shift value cgqwyz[2], with cgqwyz[2] compose respectively and give l A, l B, again according to formula:
t=1.932×(L B-L A+l A-l B) (1)
h = ( y B 2 - y A 2 ) + ( z B 2 - z A 2 ) 2 ( y B - y A ) - z B - z A y B - y A t - - - ( 2 )
z A=-(L A-l A)×sin15° (3)
y A=-(L A-l A)×cos15° (4)
z B=(L B-l B)×sin15° (5)
y B=(l B-L B)×cos15° (6)
T, h are the horizontal direction and the vertical offset amount at the rotary kiln center that will measure in the formula; L A, L ABe respectively eddy current displacement sensor 11A, B pops one's head in 19 end faces to the distance at rotary kiln axis center, is called in by program; Known L A, L B, l A, l BThrough type (1), formula (2) (source code as shown in Figure 14) just can draw the survey time rotary kiln gear misalignment of axe t of institute, h.
Be calculated level deviation, vertical missing and the part of original code that shows result of calculation shown in the accompanying drawing 14, specifically describe as: according to Displacement Measurement value clwyza, clwyzb calculates Z by formula (3), (4), (5), (6) A, Z B, y A, y B, calculating horizontal departure t, vertical missing h according to horizontal departure computing formula (1), vertical missing computing formula (2) again, result of calculation is again by interface display.
Wherein shaft centerline measurement module and parameter are provided with module, computing module and eddy current displacement sensor 11A are adjusted in supporting, and B fulcrum arrangement 1, integrated form signal pickup assembly 2 are complementary and realize the rotary kiln running axis is detected; Its testing result shows in real time respectively that by two figures shown in the accompanying drawing 6 in the main interface displaying contents comprises each grade of rotary kiln bearing position and the axis horizontal deviation of directivity and the vertical direction deviation of putting corresponding to each gear; Accompanying drawing 6 horizontal ordinates are represented each grade of rotary kiln bearing position among main interface two figure, and ordinate is represented horizontal direction deviation and the vertical direction deviation that each gear is put respectively.
Below only be preferred embodiment of the present utility model, according to above-mentioned design of the present utility model, those skilled in the art also can make various modifications and conversion to this.For example, above-mentionedly be installed in the eddy current displacement sensor setting angle on the sleeve and the selection of range ability, the parameter setting of current vortex displacement induction of signal key and develop each functional module program thereby language and matching way that each functional module is used or the like.Yet similar this conversion and modification all belong to the scope of the utility model protection.

Claims (3)

1, a kind of mancarried device that is used for rotary kiln running axis fast detecting, it is characterized in that this device comprises sensor fulcrum arrangement (1), integrated form signal pickup assembly (2) and portable computer device (3), described sensor fulcrum arrangement (1) comprises the positioning support seat (15) that is fixed on each grade of rotary kiln, removable support (18), the current vortex displacement induction of signal key (16) that eddy current displacement sensor (11) and corresponding eddy current displacement sensor (11) are provided with, described removable support (18) comprises sleeve (12), magnetic force suction base (14) and connecting rod (13); Described integrated form signal pickup assembly (2) comprises and eddy current displacement sensor (11) A, the fore-lying device A of B correspondence, B, the digital display gauge outfit, eddy current displacement sensor (11) power supply and usb data capture card, lithium ion battery, the lithium ion cell charging circuit, DC-to-dc DC/DC mu balanced circuit is formed, described eddy current displacement sensor (11) A, B is installed in respectively on the removable support (18), be connected to fore-lying device A by cable, B, fore-lying device A, B connects the USN data collecting card, simultaneously, fore-lying device A, B connects digital display gauge outfit and DC-to-dc DC/DC mu balanced circuit, wherein lithium ion battery input end and lithium ion cell charging circuit output end interconnect, lithium ion battery output terminal and DC-to-dc DC/DC mu balanced circuit input end interconnect, described portable computer device (3) comprises notebook computer and is arranged at the supporting adjustment computing module and the shaft centerline measurement module of notebook computer that portable computer device (3) passes through USB interface, cable and integrated form signal pickup assembly (2), sensor fulcrum arrangement (1) is electrically connected mutually.
2, the mancarried device that is used for rotary kiln running axis fast detecting according to claim 1 is characterized in that eddy current displacement sensor (11) on the described sleeve (12) is arranged on becoming 15 ° ± 1 ° angle in the radial direction and with vertical and adjusting of cylindrical shell (17) both sides, bottom zero strain on vertical and horizontal direction.
3, the mancarried device that is used for rotary kiln running axis fast detecting according to claim 1 is characterized in that described shaft centerline measurement module is provided with each grade of rotary kiln bearing position and corresponding to the real-time display graphics of the axis horizontal deviation of directivity and the vertical direction deviation of each grade bearing position.
CNU2005200508424U 2005-05-23 2005-05-23 Portable device for quick detection of running axial line of rotary kiln Expired - Fee Related CN2852052Y (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359773A (en) * 2011-06-27 2012-02-22 武汉理工大学 Device and method for measuring operating axis of barrel of rotary kiln
CN102394190A (en) * 2010-07-08 2012-03-28 施耐德电气萨克森韦克有限责任公司 Electric power switch and method for driving the same
CN103447886A (en) * 2013-08-19 2013-12-18 浙江大学 Method and device for detecting radial micrometric displacement of high-speed rotating intelligent boring rod in real time
CN111102958A (en) * 2019-12-05 2020-05-05 安徽芜湖海螺建筑安装工程有限责任公司 Method for measuring horizontal and vertical deflection of riding wheel shaft of rotary cement kiln

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102394190A (en) * 2010-07-08 2012-03-28 施耐德电气萨克森韦克有限责任公司 Electric power switch and method for driving the same
CN102394190B (en) * 2010-07-08 2016-04-06 施耐德电气萨克森韦克有限责任公司 Power switch and for driving the method for power switch
CN102359773A (en) * 2011-06-27 2012-02-22 武汉理工大学 Device and method for measuring operating axis of barrel of rotary kiln
CN102359773B (en) * 2011-06-27 2013-07-17 武汉理工大学 Device and method for measuring operating axis of barrel of rotary kiln
CN103447886A (en) * 2013-08-19 2013-12-18 浙江大学 Method and device for detecting radial micrometric displacement of high-speed rotating intelligent boring rod in real time
CN111102958A (en) * 2019-12-05 2020-05-05 安徽芜湖海螺建筑安装工程有限责任公司 Method for measuring horizontal and vertical deflection of riding wheel shaft of rotary cement kiln
CN111102958B (en) * 2019-12-05 2021-04-09 安徽芜湖海螺建筑安装工程有限责任公司 Method for measuring horizontal and vertical deflection of riding wheel shaft of rotary cement kiln

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