Intelligent mechanical-type material level switch

Abstract

The invention discloses an intelligent mechanical material level switch, which belongs to the technical field of material level control. The invention includes a housing, a micro motor, a micro switch, a transmission shaft and a detection paddle. The housing is provided with a micro motor and a micro switch. The micro motor is connected to one end of the transmission shaft through a connecting sleeve on the outside of the housing. The other end of the other end is connected to the detection blade through a return spring; the housing is also provided with a high-brightness two-color status indicator light, which is connected to the status indication terminal in the housing. The invention is the sealability of the product detection part and the lighted display of the detection unit shell part, which has good high temperature resistance, dustproof, anticorrosion, impact resistance and pressure resistance; the instrument has a simple structure, no complicated electrical circuits, and the operation is extremely Reliable, without debugging after installation, easy to maintain, not affected by the environment, and can run continuously for a long time. Wide range of applications.

Description

technical field [0001] The invention relates to the technical field of material level control, and more specifically relates to an intelligent mechanical material level switch. Background technique [0002] The anti-rotary material level switch is a device that uses mechanical rotation to monitor the material level. Usually, a micro motor is used as the drive device. The transmission shaft is connected to the clutch and the shaft end has blades; When the material touches the material, the blade rotates under the drive of the motor; when the material level rises and touches the blade, the detection device outputs a contact signal, and at the same time cuts off the power to stop the blade from rotating; when the material falls, the resistance of the blade disappears, and the detection The device returns to the original state by means of the torsion spring, and the blades resume rotation. For materials with different specific gravity, the torque can be adjusted. [0003] The ...

AI Technical Summary

Problems solved by technology

[0003] The reliability of the mechanical level switch is theoretically higher than that of the capacitive level switch. However, in practical applications, it is found that if the dust concentration in the silo is high and the particle size is fine, the fine particles will easily enter the gap of the drive shaft and cause damage. The drive shaft will be jammed, and the drive shaft will give a false alarm signal due to the inability to rotate, resulting in the failure of material level monitoring

In addition, the existing mechanical level switch cannot visually see the working status of the instrument on site. At the same time, through detailed investigation and understanding, people have higher requirements for intelligence, such as: monitoring of ambient humidity, If the above functions can be combined to intelligently drive and further control electrical appliances, it can provide great convenience for people's lives, but the existing devices still have many deficiencies in function, and it is difficult to meet the above needs

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