CN202420616U - Automatic multipoint monitoring laser level gage - Google Patents
Automatic multipoint monitoring laser level gage Download PDFInfo
- Publication number
- CN202420616U CN202420616U CN2012200115139U CN201220011513U CN202420616U CN 202420616 U CN202420616 U CN 202420616U CN 2012200115139 U CN2012200115139 U CN 2012200115139U CN 201220011513 U CN201220011513 U CN 201220011513U CN 202420616 U CN202420616 U CN 202420616U
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- CN
- China
- Prior art keywords
- laser
- support
- level gage
- monitoring
- stock bin
- 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
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
An automatic multipoint monitoring laser level gage belongs to the technical field of material monitoring equipment. The utility model particularly discloses an automatic multipoint monitoring laser level gage for a stock bin. The technical scheme adopted by the utility model is as follows: a support with a sliding way is mounted on the top of the stock bin; a monitoring head of a laser device is vertical to the cross section of the stock bin; a driving wheel of the laser device is arranged on the sliding way of the support and is connected with a transmission shaft of a stepped motor by a precise transmission device; a motor base of the stepped motor and the support are fixed into a whole; the control cable of the stepped motor and the data cable of the laser device are all connected to a PLC (Programmable Logic Controller) power distribution cabinet; and the PLC power distribution cabinet is connected with a computer. The automatic multipoint monitoring laser level gage has the advantages that: the stepped motor drives the laser device through the precision transmission device, during measurement, the laser beam continuously detects 5 points by moving on the upper surface of the material, so that the material level and the material consumption value of the stock bin are calculated. The automatic multipoint monitoring laser level gage has the characteristics of precise detection, visual display, simple structure, convenience in mounting, easiness in networking control, attractive appearance and low cost.
Description
Technical field
The utility model belongs to material monitoring equipment technical field, the multi-point automatic monitoring laser material position meter that particularly a kind of feed bin uses.
Background technology
At present, the laser material position meter is widely used in industries such as mining, chemical industry, pharmacy, food, papermaking, plastics, and it is generally comparatively accurate to detect for smooth material surface.Because existing laser material position meter all adopts the mode of fixed position single-point monitoring; Look like Fig. 2, Fig. 3, situation shown in Figure 4 for the material table of special state; Perhaps constantly the charging and discharge, make shape of charge level often change, material level is fluctuated; Just can't realize the high-acruracy survey to material level, this has just brought certain difficulty to batching.
Summary of the invention
The purpose of the utility model is that design a kind ofly can be carried out on-line monitoring to 5 points above same feed bin material, and its result is by the real-time device shown of computer screen.
The technical scheme of the utility model is: this utility model is equipped with the support of band slideway at the feed bin top; The monitor head of laser instrument is perpendicular to the feed bin xsect; The driving wheel of laser instrument places on the support slideway and through accurate transmission mechanism and links to each other with the stepper motor transmission shaft; The support and the support of stepper motor are fixed as one, and the data line of Stepping Motor Control cable and laser instrument all is connected to the PLC power distribution cabinet, and the PLC power distribution cabinet connects computing machine.
The beneficial effect of the utility model: the utility model passes through the accurate transmission mechanism drive laser by stepper motor; Laser beam moves 5 points of continuous detecting at the material upper surface during measurement; Shape through PLC program validation material level face; Obtain an accurate material level value through calculating again, thereby calculate the material level and the numerical value that consumes raw material of feed bin.These facility have detect accurately, intuitive display, simple in structure, easy for installation, be easy to networking control and inexpensive characteristics.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is material surface raised position synoptic diagram in the feed bin.
Accompanying drawing 3 is material table face tilt view in the feed bin.
Accompanying drawing 4 is material surface etat lacunaire synoptic diagram in the feed bin.
Embodiment
Selected one does not influence the space mounting laser instrument 2 of charging and as far as possible near the Cang Ding center, laser instrument 2 rotating shafts is adjusted into horizontality at feed bin 6 tops, and the monitor head that makes laser instrument 2 is perpendicular to the feed bin xsect.The parameter of laser instrument 2 is:
Infrared wavelength: 905nm
Beam divergence: 0.28 °
Working temperature :-40 ℃-150 ℃
Power supply: 24V DC
Power: 36Wmax
Output: 15 readings/second digital quantity: RS232C 4-20mA
Fixed support 1 on feed bin 6 top, fixing accurate transmission mechanism 3 again, accurate transmission mechanism 3 requires rotating all freely, the dead point can not occur and become flexible.Fixing stepper motor 4 then after stepper motor 4 mixes up, is fixed to support 1 with the support 5 of stepper motor 4 again and gets on.After the assembled, with laser instrument 2 and manually some energising trial run of stepper motor 4, normal errorless after, with fastening one time of all fixed mounts, hand crawl energising trial run once gets final product again.The umbilical cable line of stepper motor 4 and the data line of laser instrument 2 pass through G1 " the steel pipe hookup wire is connected to PLC power distribution cabinet 8, and PLC power distribution cabinet 8 and computing machine 9 are installed in the pulpit, install by the relevant electrical standard of country to get final product.Stepper motor 4 selects 1.8 ° of stepping angles, cable of the common use of the umbilical cable line of stepper motor 4 and the data line of laser instrument 2, and model is the BVRP type.
Monitoring method is following:
1, when material level 7 is minimum or when not having material; Choose the point that five laser beam can reach; Point makes it leave former bin wall to get final product apart from 0.5-1m with
at diametric(al) choosing
point, and other points are uniformly distributed with.5 points choosing through 4 pairs of rotaty step motors carry out continuous monitoring, and the layout of check point is as shown in Figure 5.
2, confirm material level 7 shapes according to the material level data of 5 points.
3, confirm the computing formula program according to material level 7 shapes.
(1) data of I-V5 point of monitoring, if numerical value is near being judged as the standard charge level, then the height of material level does
(2) if data become cumulative state or decrement states, can be judged as the inclination charge level, the height that calculates material level is with (1);
(3), can be judged as the convex charge level, V=1/3 π r if data demonstrate raised position
2H, h=h
III-h
I(V: material stack volume, h: convex charge level top is to the height of bottom surface, r: the inside radius of feed bin, h
III: the material level at convex charge level top, h
I: the material level of convex charge level bottom), then the average height of convex stockpile is V/ π r
2=1/3h, the material level of convex charge level does
(4) if data demonstrate the matrix charge level, the average height of matrix stockpile is 2/3h=2/3 (h
I-h
III), the material level of matrix charge level does
, calculate and on display, the material level data directly to be shown through the PLC programming.
The utility model is to online, the real-time monitoring of charge level ability of frequent variation; The precision that detects is brought up to the mm level; To instructing production, feed proportioning optimization technology to play crucial effects; The material data reading directly shows on display accurately, makes the post operation worker need not often go feed bin field observation charge level situation and the error of estimating that material level shows.
Claims (1)
1. multi-point automatic monitoring laser material position meter; It is characterized in that: this utility model is equipped with the support (1) of band slideway at feed bin (6) top; The monitor head of laser instrument (2) is perpendicular to feed bin (6) xsect; The driving wheel of laser instrument (2) places on support (1) slideway and through accurate transmission mechanism (3) and links to each other with stepper motor (4) transmission shaft; The support (5) of stepper motor (4) is fixed as one with support (1), and the data line of the umbilical cable line of stepper motor (4) and laser instrument (2) all is connected to PLC power distribution cabinet (8), and PLC power distribution cabinet (8) connects computing machine (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200115139U CN202420616U (en) | 2012-01-12 | 2012-01-12 | Automatic multipoint monitoring laser level gage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200115139U CN202420616U (en) | 2012-01-12 | 2012-01-12 | Automatic multipoint monitoring laser level gage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420616U true CN202420616U (en) | 2012-09-05 |
Family
ID=46745371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200115139U Expired - Fee Related CN202420616U (en) | 2012-01-12 | 2012-01-12 | Automatic multipoint monitoring laser level gage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914347A (en) * | 2012-11-09 | 2013-02-06 | 中国计量学院 | Liquid level sensor having self-calibration function and sensing method thereof |
| CN104316139A (en) * | 2014-11-11 | 2015-01-28 | 宁夏嘉翔自控技术有限公司 | Material level system with laser level gauge for elevated feed bin |
-
2012
- 2012-01-12 CN CN2012200115139U patent/CN202420616U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914347A (en) * | 2012-11-09 | 2013-02-06 | 中国计量学院 | Liquid level sensor having self-calibration function and sensing method thereof |
| CN102914347B (en) * | 2012-11-09 | 2015-02-25 | 中国计量学院 | Liquid level sensor having self-calibration function and sensing method thereof |
| CN104316139A (en) * | 2014-11-11 | 2015-01-28 | 宁夏嘉翔自控技术有限公司 | Material level system with laser level gauge for elevated feed bin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120905 Termination date: 20130112 |