Alarm device for half-feeding combined harvester

Abstract

The invention relates to an alarm device for a half-feeding combined harvester. The harvester comprises an electric control lock, a speaker and a No.2 screw shaft. The alarm device comprises a microprocessor, a relay and a screw shaft alarm switch arranged on the No.2 screw shaft. A coil of the relay is arranged between a power supply of the electric control lock and a signal output end of the microprocessor. A signal input end of the microprocessor is earthed through the screw shaft alarm switch. A diode D1 is arranged between the coil of the relay and the signal output end of the microprocessor. The coil of the relay is connected with an anode of the diode D1. The signal output end of the microprocessor is connected with a cathode of the diode D1. Only by increasing the relays and the diodes, all key positions of the half-feeding combined harvester can be monitored. The alarm device is convenient to use and maintain. The coil of the relay is connected with the anode of the diode, and thus, when one alarm switch is switched off to give an alarm, additional alarm lamps are avoided being lightened through an alarm circuit to generate the false alarm condition.

Description

technical field [0001] The invention relates to an alarm device for a half-feed combine harvester, which belongs to the field of electrical technology. Background technique [0002] Domestic half-feed combine harvesters basically use instrument buzzer and indicator light to alarm, including sound alarm, but the alarm sound of instrument buzzer is relatively small. At the same time, most half-feed combine harvesters have no cab, and the environment noise is large. , the sound alarm cannot be accurately perceived by the driver, and the addition of an independent buzzer alarm will increase the cost of the whole machine. The horn assembled on the whole machine is an intermittently working electrical component, which is characterized by controlling the horn and the alarm that comes with the instrument through the instrument module The indicator light meets the need of sound and light alarm. Contents of the invention [0003] The technical problem to be solved by the present in...

AI Technical Summary

Problems solved by technology

[0002] Domestic half-feed combine harvesters basically use instrument buzzer and indicator light to alarm, including sound alarm, but the alarm sound of instrument buzzer is relatively small. At the same time, most half-feed combine harvesters have no cab, and the environment noise is large. , the sound alarm cannot be accurately perceived by the driver, and the addition of an independent buzzer alarm will increase the cost of the whole machine. The horn assembled on the whole machine is an intermittently working electrical component, which is characterized by controlling the horn and the alarm that comes with the instrument through the instrument module The indicator light meets the needs of sound and light alarm

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