CN2339979Y - Electronic automatic balance with water-content detection device - Google Patents
Electronic automatic balance with water-content detection device Download PDFInfo
- Publication number
- CN2339979Y CN2339979Y CN 98202904 CN98202904U CN2339979Y CN 2339979 Y CN2339979 Y CN 2339979Y CN 98202904 CN98202904 CN 98202904 CN 98202904 U CN98202904 U CN 98202904U CN 2339979 Y CN2339979 Y CN 2339979Y
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- door
- weighing hopper
- automatic balance
- water
- utility
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Abstract
The utility model relates to an electronic automatic balance with a water-content detection device, which belongs to a weighing apparatus. The utility model is composed of a bucket type electronic automatic balance, a water-content sensor, a microprocessor system, etc., wherein the capacitance type water-content sensor is fixed on the lower part of a measuring bucket of the automatic balance, the inner part of a box body of the sensor is provided with a thermal resistor and the microprocessor system detects a table and calculates at any moment and prints results. The utility model has high precision for weight metering and water-content detection and can effectively monitor the production and the quality of a drying production line, and the microprocessor system can be communicated with a host computer so that the utility model provides conditions for the automatic control of drying production and the level enhancement of enterprise management. The utility model is applied to grain drying production lines.
Description
The electronics automatic balance of band moisture content detection device belongs to weighing apparatus.
In the grain drying production run, generally adopt drying tower at present, use common scale to calculate the weight, use moisture teller or artificial timing sampling chemical examination to detect moisture.Drying tower can not be controlled automatically, the dries quantity instability.Because the determination of moisture precision is not enough, when moisture was higher, grain was difficult for keeping, increased grain keeping cost, even went mouldy.When moisture is on the low side is exactly energy dissipation, grain decrement, even direct scaling loss grain.
The objective of the invention is, a kind of electronics automatic balance with moisture content detection device is provided.It can continuous measurement grain flow (weight) and moisture, reflects the weight and the moisture of drying grain synchronously with electric signal, and the general assembly (TW) of oven dry grain and the weighted mean value of moisture in a period of time.Thereby for the automatic control that realizes grain heat-drying creates conditions.
The electronics automatic balance of band moisture content detection device is in the weighing hopper bottom of bucket type electronics automatic balance a condenser type moisture transducer to be installed, weighing hopper is in the relevant position perforate, perforated area and sensor are suitable for reading identical, sensor is suitable for reading to communicate with weighing hopper, discharge door is arranged at the sensor bottom, pull bar one end that opens the door of discharge door is hook-type, can hang on the pin of the tie rod end of opening the door of weighing hopper Dump gate (or disengagement), make rows of sensors bin gate and weighing hopper Dump gate synchronization action (or being failure to actuate), the sprocket wheel that key connects on the main shaft is by the input shaft of chain drive reducer casing, the output terminal key of reducer casing connects cam, activation lever and connecting rod, handle the pull bar that opens the door of discharge door, discharge door is 1 with the ratio of the action frequency of Dump gate: n, n are equal to or greater than 2 positive integer.The sensor casing inner with the wide face rectangular metal pole plate that be arranged in parallel, constitute two plate capacitors that capacity equates with tank wall.There is insulation course on the pole plate two sides, and pole plate has lead to draw, and inserts the oscillatory circuit of electronic multivibrator by aviation plug.When grain was full of between the capacitor plate, capacitance was relevant with grain moisture content, so the frequency of electronic multivibrator is relevant with grain moisture content.Casing internal polar plate lower horizontal is settled an aluminium-alloy pipe, sealing thermistor in the aluminium-alloy pipe, thermistor has lead to draw, and inserts the oscillatory circuit of another electronic multivibrator by aviation plug, aluminium-alloy pipe is embedded in the grain during operation, the temperature of thermistor reaction grain.Therefore its oscillator frequency is relevant with cereal temperature.These two electronic multivibrators are sealed in the metal shell, are installed in the casing outside.Be electrically connected with microprocessor system by aviation plug and umbilical cable.The moisture transducer outside surface is installed heat-insulation layer.The temperature capacitance signal of the weight signal of microprocessor system acquisition process weight sensor, programme controlled switching signal, moisture transducer etc., by the computing of tabling look-up, can obtain the weighted mean value of measured flux (every bucket weight), raw material proportion, moisture, the cumulative weight of a period of time and moisture, show and print.
Weight metering of the present invention and water content detection precision, all can satisfy the requirement of grain heat-drying, can monitor the output and the quality of drying production line effectively, can reflect grain weight and moisture with electric signal, microprocessor system can be communicated by letter with host computer, creates conditions for drying the automatic control of producing and improving enterprise management.
Description of drawings: accompanying drawing is the electronics automatic balance one-piece construction synoptic diagram of band moisture content detection device.
Embodiments of the invention: by bucket type electronics automatic balance, compositions such as moisture transducer and microprocessor system.In Figure of description, the top of angle iron frame (22) is the cast hopper (20) of sheet steel panel beating welding fixedly, cast hopper both sides welding semiaxis, the feeding door (21) of angle steel and steel plate welding is suspended on the semiaxis of cast hopper both sides by rolling bearing (19), and cam follower (18) is welded on a side of feeding door.Weighing hopper (6) is below cast hopper, constitute by the welding of steel plate panel beating, the Dump gate (26) of angle steel and steel plate welding equally by bearing suspension on weighing hopper, the weighing hopper outside evenly distributes and welds three steel plate ears or side handles of a utensil (24), by three LOAD CELLS (23), the steel plate ears or side handles of a utensil and special-purpose suspension ring weighing hopper is suspended on the angle iron frame.The coaxial cycloidal planetary gear speed reducer (12) that drags of three-phase current motor (11), the speed reducer output shaft key connects sprocket wheel, and by chain (13) drive shaft, rolling bearing is installed at the main shaft two ends, and bearing spider is by being bolted on the angle iron frame.The cam (17) that feeds intake is connected with main shaft key with metering cam (16).The direct actuating cam push rod of the cam that feeds intake is opened feeding door, and the metering cam is opened Dump gate by cam follower (15) and linkage assembly.The shaft extension end fixed plastics disk of main shaft, disk border is fixed a permanent magnet, circumferential outer edge in the permanent magnet operation, be 180 degree two dry-reed relay (Km are arranged, Kp) screw retention is on angle iron frame, the adjustable positions of two dry-reed relays on circumference, dry-reed relay and LOAD CELLS are electrically connected with microprocessor system by umbilical cable.So that the data acquisition of the mechanical action program of system and microprocessor system and job sequence close fit.A condenser type moisture transducer (3) is installed in weighing hopper bottom at bucket type electronics automatic balance, weighing hopper is in the relevant position perforate, perforated area and sensor are suitable for reading identical, sensor is suitable for reading to communicate with weighing hopper, discharge door (1) is arranged at the sensor bottom, pull bar (5) one ends that open the door of discharge door are hook-type, the pin (4) that can hang over the pull bar that opens the door (25) end of weighing hopper Dump gate is gone up (or disengagement), make rows of sensors bin gate and weighing hopper Dump gate synchronization action (or being failure to actuate), the sprocket wheel that key connects on the main shaft drives the input shaft of reducer casing 10 by chain (14), the output terminal key of reducer casing connects cam (9), activation lever (8) and connecting rod (7), the pull bar that opens the door of manipulation discharge door.Main shaft is 6: 1 with the ratio of reduction gearbox output shaft rotating speed, and therefore, discharge door is 1: 6 with the ratio of the action frequency of Dump gate.The sensor casing inner with the wide face rectangular metal pole plate that be arranged in parallel, constitute two plate capacitors that capacity equates with tank wall.There is insulation course on the pole plate two sides, and pole plate has lead to draw, and inserts the oscillatory circuit of electronic multivibrator by aviation plug.When grain was full of between the capacitor plate, capacitance was relevant with grain moisture content, so the frequency of electronic multivibrator is relevant with grain moisture content.Casing internal polar plate lower horizontal is settled an aluminium-alloy pipe, sealing thermistor in the aluminium-alloy pipe, thermistor has lead to draw, and inserts the oscillatory circuit of another electronic multivibrator by aviation plug, aluminium-alloy pipe is embedded in the grain during operation, the temperature of thermistor reaction grain.Therefore the frequency of electronic multivibrator is relevant with cereal temperature.These two electro coupled oscillators are to be made of with above-mentioned capacitor and thermistor respectively dual time base circuit 556.Electro coupled oscillator is sealed in the metal shell and is electrically connected with microprocessor system by aviation plug and umbilical cable.The metal shell screw retention is at the moisture transducer outside surface, and the moisture transducer outside surface is installed heat-insulation layer.The control display part all is installed in the metal instrument box.The left side is 8032 microprocessor systems, and display and keyboard are installed on the panel.The right side is power control system and printer, and printer and power supply control knob are installed on the panel, and printer is electrically connected by private cable and connector with microprocessor system.
The temperature capacitance signal of the weight signal of microprocessor system acquisition process weight sensor, programme controlled switching signal, moisture transducer etc., by the computing of tabling look-up, can obtain the weighted mean value of measured flux (every bucket weight), raw material proportion, moisture, the cumulative weight of a period of time and moisture, show and print.
The course of work of the present invention: the direct motor drive main shaft, the cam on the main shaft is as follows by the fixed routine action by gear trains such as connecting rods: 1 raw material is sent into cast hopper by travelling belt continuously.The feeding door of 2 cast hopper bottoms is opened, weighing hopper below raw material flows into.3 feeding doors are closed, and K switch m connects microsystem and reads gross weight.The Dump gate of 4 weighing hopper bottoms is opened, blowing.5 Dump gate are closed, and noncontacting switch Kp connects, and microsystem reads tare weight.6 microsystems are calculated gross weight-tare weight, show net weight, and accumulative total.7 repeat the 2nd step to the 6 steps.When the n time circulation time, (n is the positive integer greater than 2).
When moving to the 3rd step, noncontacting switch Ks connects, and microsystem reads in the moisture transducer with former
Material is the capacitance of medium and two groups of oscillation frequency of the thermosensitive resistance decision that reflects material temperature.Fortune
Walk to the 4th step, when the weighing hopper Dump gate was opened, the discharge door of the moisture transducer that links was simultaneously opened
Open, weighing hopper and moisture transducer be blowing simultaneously, and this tare weight subtracts the last time tare weight to be held divided by moisture transducer
Long-pending, get the raw material rate of specific gravity.8 microprocessor systems are tabled look-up according to two groups of oscillation frequency and proportion and are obtained tested moisture.Show at display
Come out.Table is at identical grain variety, different in moisture, and under the condition of different temperatures, test through reality
To and be solidificated among the EPROM.
Claims (1)
- The electronics automatic balance of 1 band moisture content detection device is by bucket type electronics automatic balance, moisture transducer and microprocessor system constitute, it is characterized in that: moisture transducer is fixed on the weighing hopper bottom of automatic title for the rectangular metal casing, sensor top communicates with weighing hopper, discharge door is arranged at the sensor bottom, pull bar one end that opens the door of discharge door is hook-type, can hang on the pin of the tie rod end of opening the door of weighing hopper Dump gate (or disengagement), make rows of sensors bin gate and weighing hopper Dump gate synchronization action (or being failure to actuate), the sprocket wheel that key connects on the main shaft is by the input shaft of chain drive reducer casing, the output terminal key of reducer casing connects cam, activation lever and connecting rod, the pull bar that opens the door of manipulation discharge door, the rotating ratio of main shaft and reduction gearbox output shaft is n: 1, discharge door is 1 with the ratio of the action frequency of Dump gate: n, n are equal to or greater than 2 positive integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202904 CN2339979Y (en) | 1998-03-31 | 1998-03-31 | Electronic automatic balance with water-content detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202904 CN2339979Y (en) | 1998-03-31 | 1998-03-31 | Electronic automatic balance with water-content detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2339979Y true CN2339979Y (en) | 1999-09-22 |
Family
ID=33959862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98202904 Expired - Fee Related CN2339979Y (en) | 1998-03-31 | 1998-03-31 | Electronic automatic balance with water-content detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2339979Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052869A (en) * | 2011-04-05 | 2013-04-17 | 大和制衡株式会社 | Mechanism for opening and closing hopper gate |
| CN105675656A (en) * | 2016-01-07 | 2016-06-15 | 上海交通大学 | Multi-electrode seed nondestructive on-line moisture detection instrument |
| CN108801838A (en) * | 2018-05-02 | 2018-11-13 | 黑龙江八农垦大学 | A kind of grain moisture content device for fast detecting based on gravity sensor |
| CN109655142A (en) * | 2019-02-25 | 2019-04-19 | 铁岭旭日农业技术开发有限公司 | Estimation System of Grain Production |
-
1998
- 1998-03-31 CN CN 98202904 patent/CN2339979Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052869A (en) * | 2011-04-05 | 2013-04-17 | 大和制衡株式会社 | Mechanism for opening and closing hopper gate |
| CN103052869B (en) * | 2011-04-05 | 2014-08-27 | 大和制衡株式会社 | Mechanism for opening and closing hopper gate |
| CN105675656A (en) * | 2016-01-07 | 2016-06-15 | 上海交通大学 | Multi-electrode seed nondestructive on-line moisture detection instrument |
| CN108801838A (en) * | 2018-05-02 | 2018-11-13 | 黑龙江八农垦大学 | A kind of grain moisture content device for fast detecting based on gravity sensor |
| CN108801838B (en) * | 2018-05-02 | 2020-12-22 | 黑龙江八一农垦大学 | Grain moisture rapid detection device based on gravity sensor |
| CN109655142A (en) * | 2019-02-25 | 2019-04-19 | 铁岭旭日农业技术开发有限公司 | Estimation System of Grain Production |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| MM1K | Cease caused by non payment of annual fee |