CN201514267U - Dynamic metering system of stabilized soil agitating equipment - Google Patents
Dynamic metering system of stabilized soil agitating equipment Download PDFInfo
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- CN201514267U CN201514267U CN 200920048788 CN200920048788U CN201514267U CN 201514267 U CN201514267 U CN 201514267U CN 200920048788 CN200920048788 CN 200920048788 CN 200920048788 U CN200920048788 U CN 200920048788U CN 201514267 U CN201514267 U CN 201514267U
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- control computer
- industrial control
- belt conveyor
- metering
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Abstract
The utility model belongs to road engineering machinery, and relates to a dynamic metering system of stabilized soil agitating equipment. The system consists of a belt conveyor driven by a driving motor and a hopper capable of discharging materials onto a conveying belt of the belt conveyor, wherein a carrier roller of the conveying belt is provided with a weighing sensor capable of detecting the pressure of the carrier roller; a rotating shaft of a driven wheel of the belt conveyor is connected with a countering wheel; a speed measuring sensor matched with the counting wheel is arranged beside the counting wheel; a detection signal of the weighting sensor is input to an industrial control computer by a weighing transmitter; and the detection signal of the speed sensor is also input to the industrial control computer, and a control signal of the industrial control computer controls the driving motor of the belt conveyor by a frequency converter. The system has double advantages of volume metering and weighing metering, improves the metering precision and reliability, reduces equipment cost, can realize real-time automatic control, and has high automation degree and convenient operation.
Description
Technical field
The utility model belongs to field of road engineering machinery and control method thereof, relates to a kind of stabilized soil stirring equipment dynamic measurement system.
Background technology
Adopt in traditional soil stabilizer system and adopt dual mode to carry out Charge Mixture Control usually: a kind of is to carry out volumetric metering, according to certain bin gate size, calibrate the specific discharge that motor moves under friction speed, calculate the average proportions coefficient of speed and flow, carry out dynamic measurement according to average specific row coefficient, this mode measuring accuracy is poor, can not satisfy high standard user's demand.Another kind of mode is to adopt special-purpose weighing apparatus instrument mode, this mode has system complex, poor reliability, can't realize some complicated control function, maintenance rate height, equipment cost height, operation and the complicated user of demarcation are difficult to defectives such as grasp, so be difficult to obtain user's acceptance.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of measuring accuracy height, good reliability, cost is low, automaticity is high, simple to operate stabilized soil stirring equipment dynamic measurement system are provided.
Stabilized soil stirring equipment dynamic measurement system of the present utility model includes the band conveyor that is driven by drive motor and can discharge the hopper of material on the defeated material belt of band conveyor, the carrying roller place of described defeated material belt is mounted with the LOAD CELLS that can detect carrying roller pressure, the engaged wheel rotating shaft of described band conveyor is connected with counter wheel, the other tachogenerator that cooperates with it that is provided with of counter wheel, the detection signal of described LOAD CELLS is input in the industrial control computer through weight transmitter, the detection signal of tachogenerator is also imported in this industrial control computer, and the control signal of industrial control computer is through the drive motor of Frequency Converter Control band conveyor.
The defeated material belt top at described LOAD CELLS place is provided with and can hangs the counterweight that unloads automatically.
System of the present utility model can be implemented in and carries out the high-precision weighing metering on the basis of volumetric metering, make system have the two-fold advantage of volumetric metering and Weighing, improve measuring accuracy and reliability, reduced equipment cost, can realize control automatically in real time, automaticity height, easy to operate.
Description of drawings
Fig. 1 is the systematic schematic diagram of the utility model embodiment.
Embodiment
As shown in the figure, comprise band conveyor 2 that drives by drive motor 1 and the hopper 3 that can on the defeated material belt of band conveyor, discharge material in the stabilized soil stirring equipment dynamic measurement system of the present utility model, carrying roller 4 places of defeated material belt are mounted with the LOAD CELLS 5 that can detect carrying roller pressure, the engaged wheel rotating shaft of band conveyor is connected with counter wheel 6, the other tachogenerator 7 that cooperates with it that is provided with of counter wheel, the detection signal of LOAD CELLS 5 and tachogenerator 7 all is imported in the industrial control computer 8, and the control signal of industrial control computer is through the drive motor 1 of frequency converter 9 control band conveyors.The defeated material belt top at LOAD CELLS place is provided with and can hangs the counterweight 10 that unloads automatically.
System's operation of the utility model embodiment comprises following process:
1. the collection of LOAD CELLS data.The signal of LOAD CELLS enters the AD module of PLC (industrial control computer) by steady transmitter, calculate the weight of material on the belt feeder through Programmable Logic Controller, calculate the average weight of the material on " unit length " again, for dynamic measurement is ready to condition.
2. the collection of tachogenerator data.By counter wheel and sensor measurement belt speed are installed on the band conveyor engaged wheel, utilize the internal counter of PLC to count and timing, calculate " unit interval " belt the length of process, use the average weight of the material on " unit length " that the first step calculates like this, just can calculate the weight of material that passes through in " unit interval ", if " unit interval " is sub-divided into the very short time period, total accumulated value of each section can be similar to real accumulated value so.
3. the realization of dynamic econometric model.
Defined parameters:
(1) counterweight weight (W): for verification metering result's accuracy automatically in long-term use, be provided with at the LOAD CELLS place and can hang the counterweight that unloads automatically, be worth the drift of revising sensor as a comparison with its weight.
(2) velocity coefficient (K1): be multiplied by the engaged wheel radius with 2 ∏ (circumference) divided by the counter wheel number of teeth and obtain the strap length L (millimeter) that per tooth rotates, the distance of the pulse interval T of K1=L/ counter wheel, K1 belt movement in the unit interval just.
(3) equivalent weight (KZ): KZ=W/ (N1-N0).Wherein:
W=counterweight weight (kilogram)
N1: the code value (the AD number of LOAD CELLS) that the method for measuring with the school behind the link code obtains
N0: tare weight code value
(4) line density of weight of material (KP) on the belt: KP=code value * KZ/L0, wherein L0 (millimeter) is half of weighing section strap length
Instantaneous delivery m (kilogram) computing formula in unit interval is
m＝K1*KP
Carry out per hour to obtain actual flow M (ton/hour) behind the unit conversion
Actual flow M is compared the speed that adopts closed-loop control to regulate frequency converter by D/A module output simulating signal with the setting flow value makes actual flow equal to set flow.
4. the realization of school amount automatically.Can raise the price, unload sign indicating number to counterweight automatically by electric pushrod, belt conveyer scale is carried out automatic school amount.
Claims (2)
1. stabilized soil stirring equipment dynamic measurement system, include band conveyor that drives by drive motor and the hopper that can on the defeated material belt of band conveyor, discharge material, it is characterized in that: the carrying roller place of described defeated material belt is mounted with the LOAD CELLS that can detect carrying roller pressure, the engaged wheel rotating shaft of described band conveyor is connected with counter wheel, the other tachogenerator that cooperates with it that is provided with of counter wheel, the detection signal of described LOAD CELLS is input in the industrial control computer through weight transmitter, the detection signal of tachogenerator is also imported in this industrial control computer, and the control signal of industrial control computer is through the drive motor of Frequency Converter Control band conveyor.
2. stabilized soil stirring equipment dynamic measurement system according to claim 1 is characterized in that: the defeated material belt top at described LOAD CELLS place is provided with and can hangs the counterweight that unloads automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920048788 CN201514267U (en) | 2009-10-29 | 2009-10-29 | Dynamic metering system of stabilized soil agitating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920048788 CN201514267U (en) | 2009-10-29 | 2009-10-29 | Dynamic metering system of stabilized soil agitating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514267U true CN201514267U (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920048788 Expired - Fee Related CN201514267U (en) | 2009-10-29 | 2009-10-29 | Dynamic metering system of stabilized soil agitating equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN201514267U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012252A (en) * | 2010-07-26 | 2011-04-13 | 新兴铸管股份有限公司 | Computer-monitored electronic belt scale |
| CN103600975A (en) * | 2013-08-27 | 2014-02-26 | 贵州安达煤矿机械有限公司 | Conveyor control system |
| CN105668185A (en) * | 2016-04-14 | 2016-06-15 | 南京通晟自控***有限公司 | Operating state detecting device and method for belt conveyor |
| CN109489792A (en) * | 2017-09-11 | 2019-03-19 | 南京梅山冶金发展有限公司 | A kind of feed proportioning precision on-line monitoring method |
| CN110479180A (en) * | 2019-08-05 | 2019-11-22 | 镇江盛广拓再生装备科技有限公司 | A kind of high-precision continuous-flow system for cold renewal waste asphalt mixture |
-
2009
- 2009-10-29 CN CN 200920048788 patent/CN201514267U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012252A (en) * | 2010-07-26 | 2011-04-13 | 新兴铸管股份有限公司 | Computer-monitored electronic belt scale |
| CN103600975A (en) * | 2013-08-27 | 2014-02-26 | 贵州安达煤矿机械有限公司 | Conveyor control system |
| CN105668185A (en) * | 2016-04-14 | 2016-06-15 | 南京通晟自控***有限公司 | Operating state detecting device and method for belt conveyor |
| CN105668185B (en) * | 2016-04-14 | 2017-10-13 | 南京通晟自控***有限公司 | The running state detecting device and detection method of a kind of belt conveyor apparatus |
| CN109489792A (en) * | 2017-09-11 | 2019-03-19 | 南京梅山冶金发展有限公司 | A kind of feed proportioning precision on-line monitoring method |
| CN110479180A (en) * | 2019-08-05 | 2019-11-22 | 镇江盛广拓再生装备科技有限公司 | A kind of high-precision continuous-flow system for cold renewal waste asphalt mixture |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20141029 |
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| EXPY | Termination of patent right or utility model |