High-temperature rotation-resistant material level switch

Abstract

The invention discloses a high-temperature rotation-resistant material level switch, and particularly relates to the technical field of material level switches. The high-temperature rotation-resistant material level switch comprises a shell assembly, a motor assembly and a blade assembly, the motor assembly is arranged in the shell assembly, a circuit board assembly is fixedly installed above a motor support, a motor is fixedly arranged below the motor support, and the motor is connected with a clutch; a main shaft is connected below the clutch, the main shaft is sleeved with a rotation-resisting connecting sleeve and a radiator, the radiator is fixedly connected below the rotation-resisting connecting sleeve, the main shaft penetrates through the radiator and the interior of the rotation-resisting connecting sleeve, the lower end of the radiator is provided with the metal gasket and a graphite packing ring, and a first sealing cover is arranged below the graphite packing ring; a shaft check ring is arranged below the clutch, a second bearing is arranged below the shaft check ring, an explosion-proof sleeve is arranged below the second bearing, a first bearing is arranged below the explosion-proof sleeve, a hole check ring is arranged below the first bearing, and the blade assembly is connected with the main shaft. The high-temperature rotation-resistant material level switch is simple in structure, convenient to assemble and capable of being used at high temperature.

Description

technical field [0001] The invention relates to the technical field of material level switches, and more specifically, the invention relates to a high-temperature resistance-rotation material level switch. Background technique [0002] The anti-rotation material level switch uses a synchronous motor to drive the shaft and blades to rotate through the reduction gear. When the solid material to be measured touches or covers the blades, the rotation of the blades is blocked. The resistance is transmitted to the detection device inside the instrument through the shaft, and the detection device is outward. Output a switch signal, and cut off the power supply of the motor to stop the blade from rotating. When the material recedes, the resistance of the blade disappears, and the detection device returns to the original state by the tension of the spring, and the blade resumes rotation. By adjusting the tension of the spring, the resistance rotary material level switch can measure ...

AI Technical Summary

Problems solved by technology

[0003] There is an existing high-temperature resistance rotary material level switch, and the lower end of the radiator is equipped with an oil seal, which is sealed by the oil seal, and the maximum temperature resistance is 200°C. If the process temperature is above 200°C, the oil seal cannot withstand the higher temperature, which will easily cause the product to fail.

In view of the lack of products above 200 °C, it is necessary to consider designing anti-rotation products that can withstand higher temperatures

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