CN202422349U

CN202422349U - Blocking reminder for grain seeder

Info

Publication number: CN202422349U
Application number: CN2011205091136U
Authority: CN
Inventors: 陈子杨; 黄勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2012-09-05
Anticipated expiration: 2021-12-08

Abstract

The utility model relates to a blocking reminder for a grain seeder. The blocking reminder for the grain seeder consists of a 9 V direct current power supply, an infrared transmitting and infrared signal receiving circuit, a negative pulse formation circuit, a level switching circuit, a steady-state circuit and a reminding indication circuit, and is characterized in that an integrated circuit in the steady-state circuit is a 555 time base circuit. The seed particle blocking reminder for the grain seeder is designed for broad peasant households to ensure the sowing quality of grains and is used for sowing the grains in drill. The reminder can constantly monitor the falling condition of seed particles in a pipeline, and can remind an operator of taking a corresponding measure to dredge in time once the seed grains are blocked in the falling pipeline, so that a phenomenon of seeding absence in a large area is completely eradicated, and the sowing quality of the grains and the work efficiency of fields are effectively improved.

Description

Grain drill stops up reminiscences

Technical field

The utility model belongs to electronic technology and agricultural production, is to stop up reminiscences about a kind of grain drill.

Background technology

Modes such as type of seeding commonly used is broadcasted sowing, drilling, bunch planting and precise sowing.So-called drilling: exactly seed line-spacing, depth of planting and the amount of broadcasting on request at the slivering row.Crops are ventilated at growing period, printing opacity because drilling helps, and task management such as be convenient to field fertilization, hoe up weeds is so the drilling technology is widely used in the sowing of crops such as wheat, millet.

Electronic surveillance device on the modern large-scale seeder generally is made up of sensor, conversion line and signal display apparatus.Sensor adopts photoelectric component more, comprising: visible light and infrared light.When seed passed through the kind subchannel of sensor, the blocking light beam made photoelectric tube send signal, and expression has seed to pass through.When a certain row of broadcasting breaks down, when no seed passes through, promptly show the number of this row on the bridge instrumentation dish, and send seed and stop up alarm sound.

Regular drill planter owing to mix foreign material such as careless bar, other seeds or stone are arranged in the seed, is easy to cause in kind of the grain dropping process and in pipeline, stops up at seeding time.Because of the kind grain that broadcasts all is coated with earth, in case taking place, stops up kind of a grain, and the sowing personnel are difficult in time find the broadcast leakage phenomenon, and when where broadcast leakage has no way of finding out about it and searches, and inconvenience is in time remedied, and finally can cause the crop disconnected ridge that is short of seedling, and influences output and harvest.

The utility model research is in order to guarantee seeding quality, and a kind of sowing machine grain that is used for the crop drilling that designs for wide farmers stops up alarm set.Had this prompting can keep watch on constantly kind of grain in ducted whereabouts situation; In case planting grain stops up in the pipeline that falls; Alarm set can in time remind operating personnel to take the measure of dredging accordingly; The phenomenon of having stopped the large tracts of land broadcast leakage takes place, and has improved seeding quality and the work efficiency of crops effectively.

Below specify this grain drill and stop up the correlation technique that reminiscences relates in manufacturing process.

The utility model content

Goal of the invention and beneficial effect: the utility model research is in order to guarantee the seeding quality of crop, and a kind of sowing machine grain that is used for the crops drilling that designs for wide farmers stops up alarm set.This reminiscences can keep watch on constantly kind of grain in ducted whereabouts situation; In case planting grain stops up in the pipeline that falls; Alarm set can in time remind operating personnel to take the measure of dredging accordingly; Thereby the phenomenon of having stopped the large tracts of land broadcast leakage takes place, and has improved the seeding quality of crop and the work efficiency in field effectively.

Technical characterictic: grain drill stops up reminiscences, it by 9V direct supply DC, infrared and infrared signal receiving circuit, negative pulse form circuit, level shifting circuit and steady-state circuit, the prompting indicating circuit is formed, its characteristic comprises:

Infrared and infrared signal receiving circuit: form by infrared light-emitting diode D1, resistance R 1 and photodiode D2, resistance R 2; Meet the anodal VCC of 9V direct supply behind the cathode series resistance R1 of infrared light-emitting diode D1; Infrared light-emitting diode D1 negative pole connection circuit ground GND; Meet the anodal VCC of 9V direct supply behind the cathode series resistance R2 of photodiode D2, photodiode D2 negative pole connection circuit ground GND;

Negative pulse forms circuit: be made up of electrochemical capacitor C1, trimmer potentiometer RP, electrochemical capacitor C2; The positive pole of electrochemical capacitor C1 links to each other with photosensitive reception diode D2 is anodal; The negative pole of electrochemical capacitor C1 links to each other with 2 pin of 555 time base circuit IC1, the base stage of positive-negative-positive silicon triode BG1, the end of trimmer potentiometer RP, the positive pole of electrochemical capacitor C2; The anodal VCC of the other end of trimmer potentiometer RP and movable knee-joint 9V direct supply thereof, the negative pole connection circuit ground GND of electrochemical capacitor C2;

Level shifting circuit and steady-state circuit: form by positive-negative-positive silicon triode BG1, resistance R 3, electrochemical capacitor C3; 6 pin of the anodal and 555 time base circuit IC1 of the end of the emitter connecting resistance R3 of positive-negative-positive silicon triode BG1, electrochemical capacitor C3; The anodal VCC of another termination 9V direct supply of resistance R 3; The negative pole connection circuit ground GND of the collector of positive-negative-positive silicon triode BG1 and electrochemical capacitor C3; The anodal VCC that 4 pin of 555 time base circuit IC1 in the steady-state circuit and 8 pin connect the 9V direct supply, the 1 pin connection circuit ground GND of 555 time base circuit IC1;

Remind indicating circuit: form by hummer Y, red light emitting diodes D3 and resistance R 4; 3 pin of 555 time base circuit IC1 connect the negative pole of hummer Y and an end of resistance R 4; The positive pole of hummer Y meets the anodal VCC of 9V direct supply; The positive pole of another termination red light emitting diodes D3 of resistance R 4, the negative pole connection circuit ground GND of red light emitting diodes D3.

The circuit working principle: this reminiscences adopts infrared ray principle to convert the whereabouts situation of pipeline two-story valley species grain to electric signal and controls hummer and remind sounding.Infrared light emission pipe D1 and photosensitive receiving tube D2 faced be installed in kind of the grain whereabouts pipeline, the infrared light that infrarede emitting diode D1 is sent just in time is radiated on the photosensitive receiving tube D2.When cereal kind grain in pipeline during normal descend, infrared light just by kind of grain blocking off and on, makes the continuous negative pulse of negative pole a point generation of infrarede emitting diode D1 pipe; And, electrochemical capacitor C2 can not be charged, b point voltage approaching zero through the positive pole that electrochemical capacitor Cl is coupled to electrochemical capacitor C2; Thereby 2 pin of 555 time base circuits are low level, and simultaneously owing to the effect of positive-negative-positive silicon triode BG1, the voltage that needs only on the electrochemical capacitor C2 is zero; So, electrochemical capacitor C3 can not be recharged yet, otherwise positive-negative-positive silicon triode BG1 conducting; Electrochemical capacitor C3 will be discharged, and 2 pin of such 555 time base circuits and 6 pin all are low level, the 3 pin output high level of 555 time base circuits; Make hummer Y not have electricity and do not work, at this moment light emitting diode D3 will be lighted.

In case it is blocked in pipeline that kind of grain takes place, cereal kind grain will no longer fall, thereby the infrared ray that infrarede emitting diode D1 is sent is radiated on the photodiode D2 all the time; The a point voltage just is a low level all the time like this, and because of it is a direct current signal, it can not arrive the b point through electrochemical capacitor Cl again; So electrochemical capacitor C2 begins charging; Follow electrolysis appearance C3 and also charge along with the charging of electrochemical capacitor C2, the voltage on very fast electrochemical capacitor C2, the electrochemical capacitor C3 just reaches the turnover voltage of 555 time base circuits, and 2 pin of 555 time base circuits and 6 pin become high level; 555 time base circuits reset; 3 pin output low levels of 555 time base circuits, thus hummer Y is sounded a buzzer, and red light emitting diodes D3 extinguishes because of dead electricity.

Description of drawings

Accompanying drawing 1 is the circuit working schematic diagram that grain drill stops up reminiscences.

Embodiment

Stop up the components and parts technical requirement and the adjustment method of reminiscences fundamental diagram and description of drawings and the following stated according to the grain drill shown in the accompanying drawing 1 and implement, can realize the utility model.

The selection of components and parts and technical parameter thereof

Infrared light-emitting diode D1 and photosensitive reception diode D2 adopt integrated infrared mutual-tube SE303 and PH302; BG1 selects the positive-negative-positive silicon transistor for use, as: 2CS9012 or 2CS9015;

IC1 is that 555 time base circuits adopt model commonly used, as: NE555;

Rl～R4 resistance adopts the 1/8W metalfilmresistor, and resistance is respectively: 6.8K Ω, 5.1K Ω, 10K Ω, 470 Ω; RP is with WH7-A type trimmer potentiometer, and its resistance is 510 K Ω;

C1～C3 is with CD11-10V type electrochemical capacitor, and capacity is respectively 1 μ F, 22 μ F, 470 μ F;

Y is a hummer, and electronic circuit is contained in inside, requires selection work voltage to be: 6～9V.

Circuit debugging with install and use

As long as the components and parts performance that grain drill obstruction reminiscences is selected for use is intact; Weld according to the annexation of components and parts shown in the circuit working schematic diagram in the accompanying drawing; After the conscientious confirmation of the line that butt welding connects, this device need not debugged basically, connects the 9V direct supply and gets final product operate as normal;

After grain drill stops up reminiscences circuit connection direct supply; Fall with club simulation kind of a grain earlier; Promptly brandish with club and come and go between infrared light emission pipe D1 and photosensitive receiving tube D2, logical when disconnected when making the IR that is radiated on the D2 pipe, at this moment hummer Y should be unable to sounding; Otherwise suitably regulator potentiometer RP makes its sensitivity reach optimum condition.Then club is stopped to brandish, the simulation line clogging, this moment, hummer Y just can sounding;

When grain drill obstruction reminiscences is installed; The installation that crucial sowing machine grain stops up reminiscences and photosensitive receiving tube D2; Must this two pipe be faced and be installed on proximal port place in kind of the pipeline of grain whereabouts, also can as the case may be it be satisfied with the pipeline centre position.

Claims

1. a grain drill stops up reminiscences, it by 9V direct supply DC, infrared and infrared signal receiving circuit, negative pulse form circuit, level shifting circuit and steady-state circuit, the prompting indicating circuit is formed, its characteristic comprises:

Infrared and infrared signal receiving circuit are made up of infrared light-emitting diode D1, resistance R 1 and photodiode D2, resistance R 2; Meet the anodal VCC of 9V direct supply behind the cathode series resistance R1 of infrared light-emitting diode D1; Infrared light-emitting diode D1 negative pole connection circuit ground GND; Meet the anodal VCC of 9V direct supply behind the cathode series resistance R2 of photodiode D2, photodiode D2 negative pole connection circuit ground GND;

Negative pulse forms circuit and is made up of electrochemical capacitor C1, trimmer potentiometer RP, electrochemical capacitor C2; The positive pole of electrochemical capacitor C1 links to each other with photosensitive reception diode D2 is anodal; The negative pole of electrochemical capacitor C1 links to each other with 2 pin of 555 time base circuit IC1, the base stage of positive-negative-positive silicon triode BG1, the end of trimmer potentiometer RP, the positive pole of electrochemical capacitor C2; The anodal VCC of the other end of trimmer potentiometer RP and movable knee-joint 9V direct supply thereof, the negative pole connection circuit ground GND of electrochemical capacitor C2;

Level shifting circuit and steady-state circuit are made up of positive-negative-positive silicon triode BG1, resistance R 3, electrochemical capacitor C3; 6 pin of the anodal and 555 time base circuit IC1 of the end of the emitter connecting resistance R3 of positive-negative-positive silicon triode BG1, electrochemical capacitor C3; The anodal VCC of another termination 9V direct supply of resistance R 3; The negative pole connection circuit ground GND of the collector of positive-negative-positive silicon triode BG1 and electrochemical capacitor C3; The anodal VCC that 4 pin of 555 time base circuit IC1 in the steady-state circuit and 8 pin connect the 9V direct supply, the 1 pin connection circuit ground GND of 555 time base circuit IC1;

Remind indicating circuit to form by hummer Y, red light emitting diodes D3 and resistance R 4; 3 pin of 555 time base circuit IC1 connect the negative pole of hummer Y and an end of resistance R 4; The positive pole of hummer Y meets the anodal VCC of 9V direct supply; The positive pole of another termination red light emitting diodes D3 of resistance R 4, the negative pole connection circuit ground GND of red light emitting diodes D3.