English
Resistive rotary material level switch is widely used in metallurgy, electric power, coal, cement and port industries, is an important protection equipment of belt conveyor.
Specifications and parameters:
Power supply: 24VAC -220VAC
Length: 200 mm
Contact capacity: AC380V 3A,220V 5A
Blade revolution: 1 revolution per minute
Material temperature: standard -20℃~+160℃
Measurement medium: powdery or granular material
Flexibility: wear-resistant rubber spring flexible shaft
Installation: G1 1/2 pipe thread, flange connection
Structural features:
The shell of this machine is made of cast aluminum alloy with high strength and impact resistance
The surface of the shell is coated with electrostatic spray, with strong adhesion, uniform coating and aging resistance
Full sealing, oil seal design can prevent dust infiltration along the axis
The torque is stable and reliable, and the torque size can be adjusted, the volume is light and easy to install
When the blade is under heavy load, the motor slewing mechanism will automatically slip to ensure that it is not damaged
The internal components can be easily inspected and repaired without having to be removed from the silo
Working principle:
The machine adopts synchronous micromotor after deceleration, driving the detection blade to rotate at the speed of one revolution per minute. When the material level is increased so that the blade rotation is hindered, the detection mechanism will rotate around the spindle displacement. This displacement first causes a micro switch to act and sends out a material level signal. A second microswitch then acts to cut off the motor and stop it. This state is maintained as long as the material level is constant.
When the material level drops and the detection blade loses its block, the detection mechanism will rely on the spring tension to restore the original state. First of all, a micro switch action, turn on the motor power to make it rotate for a week and then make it rotate. Then another micro switch sends out a signal without material level. As long as there is no material block to detect the rotation of the blade, this state will always be maintained.
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