CN2577546Y - Multifunctional alarm for combined harvester - Google Patents
Multifunctional alarm for combined harvester Download PDFInfo
- Publication number
- CN2577546Y CN2577546Y CN 02270348 CN02270348U CN2577546Y CN 2577546 Y CN2577546 Y CN 2577546Y CN 02270348 CN02270348 CN 02270348 CN 02270348 U CN02270348 U CN 02270348U CN 2577546 Y CN2577546 Y CN 2577546Y
- Authority
- CN
- China
- Prior art keywords
- tachogenerator
- speed measuring
- measuring sensor
- circuit
- signal processing
- 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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- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
Abstract
The utility model relates to a multifunctional alarm for a combined harvester. The utility model is composed of a speed measuring sensor and an alarm circuit, wherein, the alarm circuit is composed of a signal processing circuit and a sound and light alarm circuit, the output end of the speed measuring sensor is connected to the input end of the signal processing circuit, the output end of the signal processing circuit is connected to the sound and light alarm circuit, the sensor comprises an axial flow roller speed measuring sensor, a rethreshing apparatus speed measuring sensor and an auger speed measuring sensor of the barn top part, the axial flow roller speed measuring sensor is arranged on the left end of an axial flow roller bearing seat, the rethreshing apparatus speed measuring sensor is arranged on a bearing seat on the left side or the right side of the rethreshing apparatus, and the auger speed measuring sensor of the barn top part is arranged on a bearing seat on the left end of the auger of the barn top part. When the faults of the jams of the axial flow roller and the rethreshing apparatus, etc. occur when a combined harvester is operated, the utility model can generate alarm signals in time, so a user can detect and solve the faults in time, and the operating progress and the harvesting efficiency are raised.
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
China is large agricultural country, and through the high speed developments of nearly more than ten years, rural area combine recoverable amount has reached more than 50 ten thousand, and to increase by 40,000 speed development year.Combine is that agricultural foison and rural economic development play an important role.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 multifunction alarm device that can in time report to the police when combine operation breaks down.
For achieving the above object, the technical solution adopted in the utility model is: a kind of combine multifunction alarm device, it is made up of tachogenerator and warning 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, and the output of signal processing circuit is connected with sound light alarming circuit.
Described sensor comprises axial-flow type drum tachogenerator, rethresher tachogenerator and silo top screw feeder tachogenerator, the axial-flow type drum tachogenerator is contained in axial-flow type drum bearing block left end, the rethresher tachogenerator is contained on the bearing block of rethresher left end or right-hand member, and silo top screw feeder tachogenerator is contained on the bearing block of silo top screw feeder left end.
Described signal processing circuit adopts single-chip microcomputer, and sound light alarming circuit is made up of the dichromatic LED and the buzzer of three parallel connections, and light emitting diode all is connected with the single-chip microcomputer output with buzzer.
Described tachogenerator is Hall element.
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.
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 89C51, the output of each tachogenerator all by the filter circuit formed by capacitor C 9, C10, C11 and single-chip microcomputer the P1 mouth be connected, R1, R2, R3 are the signal pull down resistor.The single-chip microcomputer output is connected with dichromatic LED D1, D2, D3 and the buzzer BEEP of three parallel connections.Crystal oscillator Y1 forms the single-chip microcomputer clock circuit and is connected with the clock end of single-chip microcomputer with capacitor C 7, C8, and capacitor C 12 is formed reset circuit with resistance R 7 and is connected with the reset terminal of single-chip microcomputer.Alarm adopts the 12V dc source of combine self, be connected with the power end Vcc and the sensor of single-chip microcomputer with the filter circuit that capacitor C 1～C6 forms through three terminal regulator LM7805, filter the power supply of making an uproar for it provides the high-quality high frequency, can play anti-interference preferably effect.
During work, the tach signal of axial-flow type drum, rethresher and silo top screw feeder is by corresponding Hall element collection and by through capacitance group filtering and the drop-down input single chip computer AT of resistor group signal 89C51, the rotating speed that collects is compared with the critical speed standard value of setting, when the collection rotating speed is higher than critical standard value, do not report to the police, two-color diode D1～D3 is shown in green, represent working properly, this moment buzzer also be in static state; 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 make buzzer BEEP produce audible alarm, prompting has fault to produce, remind the tractor driver to handle, guarantee the operate as normal of grain header according to the diode index signal.
Claims (4)
1, a kind of combine multifunction alarm device, it is characterized in that, it is made up of tachogenerator and warning 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, and the output of signal processing circuit is connected with sound light alarming circuit.
2, alarm as claimed in claim 1, it is characterized in that, described sensor comprises axial-flow type drum tachogenerator, rethresher tachogenerator and silo top screw feeder tachogenerator, the axial-flow type drum tachogenerator is contained in axial-flow type drum bearing block left end, the rethresher tachogenerator is contained on the bearing block of rethresher left end or right-hand member, and silo top screw feeder tachogenerator is contained on the bearing block of silo top screw feeder left end.
3, alarm as claimed in claim 1 or 2 is characterized in that, signal processing circuit adopts single-chip microcomputer, and sound light alarming circuit is made up of the dichromatic LED and the buzzer of three parallel connections, and light emitting diode all is connected with the single-chip microcomputer output with buzzer.
4, alarm as claimed in claim 2 is characterized in that, described tachogenerator is Hall element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270348 CN2577546Y (en) | 2002-10-21 | 2002-10-21 | Multifunctional alarm for combined harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270348 CN2577546Y (en) | 2002-10-21 | 2002-10-21 | Multifunctional alarm for combined harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2577546Y true CN2577546Y (en) | 2003-10-08 |
Family
ID=33735424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02270348 Expired - Fee Related CN2577546Y (en) | 2002-10-21 | 2002-10-21 | Multifunctional alarm for combined harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2577546Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102090206A (en) * | 2010-12-10 | 2011-06-15 | 浙江大学 | Device for warning blocking of separation roller of combine harvester |
| CN101595785B (en) * | 2009-06-23 | 2012-05-23 | 江苏大学 | Precaution and alarming device for combined harvester plugging fault |
-
2002
- 2002-10-21 CN CN 02270348 patent/CN2577546Y/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 |
| CN102090206A (en) * | 2010-12-10 | 2011-06-15 | 浙江大学 | Device for warning blocking of separation roller of combine harvester |
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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 |