CN2640220Y - Blocking warner of combine - Google Patents
Blocking warner of combine Download PDFInfo
- Publication number
- CN2640220Y CN2640220Y CN 03215605 CN03215605U CN2640220Y CN 2640220 Y CN2640220 Y CN 2640220Y CN 03215605 CN03215605 CN 03215605 CN 03215605 U CN03215605 U CN 03215605U CN 2640220 Y CN2640220 Y CN 2640220Y
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- circuit
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- alarm
- signal processing
- tachogenerator
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Abstract
The utility model relates to a multi-function alarm for combines, which comprises an axial-flow cylinder velocity sensor, a rethresher velocity sensor, a granary top screw conveyor velocity sensor, an alarm circuit, a display circuit and a power supply steady voltage circuit; the alarm circuit comprises a signal processing circuit and a sound and light alarm circuit; the output terminal of the velocity sensor is connected to the input terminal of the signal processing circuit; the output terminal of the signal processing circuit is connected to the sound and light alarm circuit; the output terminal of the signal processing circuit is also connected to the display circuit by a driving circuit. When the combine is in operation, the utility model can display the real time axial-flow cylinder rotation speed and rethresher rotation speed on the display; and if blockage or other faults take place, the utility model can timely produce alarm signals, then the machine operator can timely discover and solve the fault, and the job progress and the efficiency of crop are improved greatly.
Description
Technical field
The utility model belongs to a kind of warning device, particularly relates to a kind of warning device that is used for combine.
Technical background
Combine plays an important role to agricultural foison and rural economic development, and reasons such as combine is excessive because of feed quantity often at harvest operation, crops humidity at the axial-flow type drum place, the rethresher place stops up.Because a certain link of last grain transmission system breaks down and causes seed after the threshing not enter silo and all shed in the fields.The generation of above-mentioned fault all can have a strong impact on the job scheduling and the results efficient of combine, even comes unnecessary economic loss for peasant household and machine master tape.
Summary of the invention
The purpose of this utility model provides a kind of alarm that can in time report to the police and can show grain header axial-flow type drum, rethresher rotating speed in real time when combine operation generation plugging fault.
For achieving the above object, the technical solution adopted in the utility model is: a kind of combine multifunction alarm device, it is by the axial-flow type drum tachogenerator, rethresher tachogenerator and silo top screw feeder tachogenerator, warning circuit, display circuit and power supply stabilization circuit are formed, warning circuit is made up of signal processing circuit and sound light alarming circuit, the output of tachogenerator is connected with the input of signal processing circuit, the output of signal processing circuit is connected with sound light alarming circuit, and the output of signal processing circuit also is connected with display circuit by drive circuit.
Signal processing circuit adopts single-chip microcomputer, and sound light alarming circuit is made up of three dichromatic LEDs and buzzer, and three light emitting diodes all are connected with the single-chip microcomputer output with buzzer.
The tachogenerator output is connected to four NAND gate integrated circuits, the output of three tachogenerators is connected with the input of one of them NAND gate of four NAND gate integrated circuits respectively, another input of this NAND gate is connected with the chip selection signal output of single-chip microcomputer, and the output of each NAND gate all is connected with the data-in port of single-chip microcomputer.
In order to show the temperature in the driver's cabin, also be connected to the digital temperature probe at the signal processing circuit input.
Described power supply stabilization circuit is connected to form successively by elementary mu balanced circuit, under-voltage protecting circuit, delay protection circuit and secondary mu balanced circuit.Elementary mu balanced circuit is made up of integrated package of pressure-stabilizing 78L09 and peripheral component thereof; the voltage output end of integrated package of pressure-stabilizing 74L09 connects the power end of the under-voltage protecting circuit of being made up of NE555 by diode; between the voltage output end of integrated package of pressure-stabilizing 74L09 and ground, also be connected to two resistance of connecting; the common ends of two resistance is connected with the reset terminal of under-voltage protecting circuit; the output of under-voltage protecting circuit connects the power end and the reset terminal of the delay protection circuit of being made up of NE555 by triode; the output of delay protection circuit is by resistance R 15; triode Q8 and relay connect the secondary mu balanced circuit input of being made up of integrated package of pressure-stabilizing 78L05, and the output of integrated package of pressure-stabilizing 78L05 is connected to filter circuit.
Described tachogenerator is Hall element.
The power safety pipe that is adopted in the power supply stabilization circuit is for recovering protective tube or slow-blow fuse certainly.
After adopting such scheme, when combine operation, if axial-flow type drum, rethresher obstruction take place and go up faults such as the obstruction of grain device, driving member fracture, the utility model can in time produce alarm signal, makes the tractor driver can in time find fault and solution in time.So not only can improve the job scheduling and the results efficient of combine greatly, and avoid unnecessary economic loss.Simultaneously, the utility model is convenient to the rotating speed of operating personnel's real time inspection and supervision axial-flow type drum, rethresher or silo top screw feeder owing to be provided with display in driver's cabin, if find its rotating speed abnormal conditions is arranged, can take measures in advance, to avoid fault.
Description of drawings
Accompanying drawing is depicted as circuit theory schematic diagram of the present utility model.
Embodiment
The combine multifunction alarm device comprises three tachogenerators, one is axial-flow type drum tachogenerator S1, be contained in axial-flow type drum bearing block left end, one is rethresher tachogenerator S2, be contained on the bearing block of rethresher left end or right-hand member, one is silo top screw feeder tachogenerator S3, is contained on the bearing block of silo top screw feeder left end, and above-mentioned three tachogenerators all adopt Hall element.Warning circuit is that core is formed with single chip computer AT 89C52, the output of axial-flow type drum tachogenerator S1 is by resistance R 5, capacitor C 13 is connected with the input of one of them NAND gate U8A of four NAND gate integrated circuit 74LS00, the output of rethresher tachogenerator S2 is by resistance R 6, capacitor C 14 is connected with the input of one of them NAND gate U8B of four NAND gate integrated circuit 74LS00, the output of silo top screw feeder tachogenerator S3 is by resistance R 7, capacitor C 15 is connected with the input of one of them NAND gate U8C of four NAND gate integrated circuit 74LS00, another input of above-mentioned three NAND gates selects data wire to be connected with three road sheets from single-chip microcomputer respectively, and the output of three NAND gates is respectively by diode D4, D5, D6 converges the back and is connected with the P1 mouth of single chip computer AT 89C52.In order to make alarm can show temperature in the driver's cabin, a digital temp probe DS18B20 also can be installed in driver's cabin, its output is connected with the input of single-chip microcomputer.Single-chip microcomputer P2 mouth is as the red-green glow signal output part of three dichromatic LED D8, D9, D10, respectively with light emitting diode D8 by triode Q2, Q3, with light emitting diode D9 by triode Q4, Q5, be connected by triode Q6, Q7 with light emitting diode D10, the output of single-chip microcomputer also is connected with the control relay JRC2 of buzzer BEEP by triode Q1.LCD LCD is installed in driver's cabin, and the output of single-chip microcomputer is connected with LCD LCD by driving integrated package HT1621.Crystal oscillator Y1 forms the single-chip microcomputer clock circuit and is connected with the clock end of single-chip microcomputer with capacitor C 16, C17, and capacitor C 18 is formed reset circuit with resistance R 0 and is connected with the reset terminal of single-chip microcomputer.
This alarm adopts the 12V dc source of combine self, through after the voltage stabilizing of power supply stabilization circuit, filters the power supply of making an uproar for other built-up circuit of alarm provides high-quality, can play anti-interference preferably effect.Power supply stabilization circuit is connected to form successively by elementary mu balanced circuit, under-voltage protecting circuit, delay protection circuit and secondary mu balanced circuit.Elementary mu balanced circuit is made up of integrated package of pressure-stabilizing 78L09 and peripheral component thereof, voltage surely to 9V, is used for under-voltage protecting circuit, delay protection circuit, and reduce the burden of secondary mu balanced circuit.Before the voltage input end of integrated package of pressure-stabilizing 78L09, also be connected to the filter circuit of forming by capacitor C 0, C20; the voltage output end of integrated package of pressure-stabilizing 74L09 connects the power end of the under-voltage protecting circuit of being made up of NE555 by diode D1; between the voltage output end of integrated package of pressure-stabilizing 74L09 and ground, also be connected to two resistance R of connecting 1, R2; the common ends of two resistance is connected with the reset terminal of the NE555 that forms under-voltage protecting circuit, for NE555 provides threshold voltage.The output of under-voltage protecting circuit connects the power end and the reset terminal of the delay protection circuit of being made up of NE555 by triode Q9; the output of delay protection circuit connects the secondary mu balanced circuit input of being made up of integrated package of pressure-stabilizing 78L05 by resistance R 15, triode Q8 and relay J RC1, and the output of integrated package of pressure-stabilizing 78L05 is connected to the filter circuit of being made up of capacitor C 3, C6～C10.The power safety pipe F0 that is adopted in the power supply stabilization circuit is for recovering protective tube or slow-blow fuse certainly.
During work, the tach signal of axial-flow type drum, rethresher, silo top screw feeder is by corresponding sensor collection, transducing signal is imported four NAND gate integrated circuit 74LS00, single-chip microcomputer is by the sheet selected control system to different NAND gates among the 74LS00, sequential scanning three road rotating speeds, the rotating speed that collects is compared with the critical speed standard value of setting, and the actual speed value is presented on the LCD LCD, be convenient to the rotating speed that the tractor driver monitors each rotating shaft in real time.When gathering rotating speed and be higher than critical standard value, do not report to the police, two-color diode D1～D3 is shown in green, represent working properlyly, and buzzer also is in static state at this moment; When any one tunnel collection rotating speed subcritical standard value, make corresponding two-color diode send redness by single-chip microcomputer output control signal, and through the warning of relay J RC2 driving buzzer generation pulsed sound, prompting has fault to produce, remind the tractor driver to take measures, guarantee the operate as normal of grain header at abort situation shown in the dichromatic LED.In addition, the digital temperature probe can be installed in driver's cabin if needed, single-chip microcomputer also will be gathered this temperature signal in real time, and it is presented on the LCD, be convenient to the tractor driver and grasp the interior temperature of driver's cabin.
Claims (8)
1, a kind of combine multifunction alarm device, it is characterized in that, it is made up of axial-flow type drum tachogenerator, rethresher tachogenerator and silo top screw feeder tachogenerator, warning circuit, display circuit and power supply stabilization circuit, warning circuit is made up of signal processing circuit and sound light alarming circuit, the output of tachogenerator is connected with the input of signal processing circuit, the output of signal processing circuit is connected with sound light alarming circuit, and the output of signal processing circuit also is connected with display circuit by drive circuit.
2, alarm as claimed in claim 1 is characterized in that, signal processing circuit adopts single-chip microcomputer, and sound light alarming circuit is made up of three dichromatic LEDs and buzzer, and three light emitting diodes all are connected with the single-chip microcomputer output with buzzer.
3, alarm as claimed in claim 2, it is characterized in that, the tachogenerator output is connected to four NAND gate integrated circuits, the output of three tachogenerators is connected with the input of one of them NAND gate of four NAND gate integrated circuits respectively, another input of this NAND gate is connected with the chip selection signal output of single-chip microcomputer, and the output of each NAND gate all is connected with the data-in port of single-chip microcomputer.
4, alarm as claimed in claim 1 is characterized in that, the signal processing circuit input also is connected to the digital temperature probe.
As claim 1,2,3 or 4 described alarms, it is characterized in that 5, described power supply stabilization circuit is connected to form successively by elementary mu balanced circuit, under-voltage protecting circuit, delay protection circuit and secondary mu balanced circuit.
6; alarm as claimed in claim 5; it is characterized in that; elementary mu balanced circuit is made up of integrated package of pressure-stabilizing 78L09 and peripheral component thereof; the voltage output end of integrated package of pressure-stabilizing 74L09 connects the power end of the under-voltage protecting circuit of being made up of NE555 by diode; between the voltage output end of integrated package of pressure-stabilizing 74L09 and ground, also be connected to two resistance of connecting; the common ends of two resistance is connected with the reset terminal of under-voltage protecting circuit; the output of under-voltage protecting circuit connects the power end and the reset terminal of the delay protection circuit of being made up of NE555 by triode; the output of delay protection circuit is by resistance R 15; triode Q8 and relay connect the secondary mu balanced circuit input of being made up of integrated package of pressure-stabilizing 78L05, and the output of integrated package of pressure-stabilizing 78L05 is connected to filter circuit.
7, alarm as claimed in claim 1 is characterized in that, described tachogenerator is Hall element.
8, alarm as claimed in claim 5 is characterized in that, the power safety pipe that is adopted in the power supply stabilization circuit is for recovering protective tube or slow-blow fuse certainly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03215605 CN2640220Y (en) | 2003-03-07 | 2003-03-07 | Blocking warner of combine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03215605 CN2640220Y (en) | 2003-03-07 | 2003-03-07 | Blocking warner of combine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2640220Y true CN2640220Y (en) | 2004-09-15 |
Family
ID=34289998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03215605 Expired - Fee Related CN2640220Y (en) | 2003-03-07 | 2003-03-07 | Blocking warner of combine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2640220Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101595785B (en) * | 2009-06-23 | 2012-05-23 | 江苏大学 | Precaution and alarming device for combined harvester plugging fault |
| CN106888370A (en) * | 2017-03-31 | 2017-06-23 | 江苏大学 | It is a kind of based on embedded with technology of Internet of things united reaper video monitoring system |
-
2003
- 2003-03-07 CN CN 03215605 patent/CN2640220Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101595785B (en) * | 2009-06-23 | 2012-05-23 | 江苏大学 | Precaution and alarming device for combined harvester plugging fault |
| CN106888370A (en) * | 2017-03-31 | 2017-06-23 | 江苏大学 | It is a kind of based on embedded with technology of Internet of things united reaper video monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |