Why do electric gourds use a broken fire limiter instead of a travel switch
Electric hoist, belongs to the lifting equipment is particularly strict control, to prevent the happening of the accident, the user need for a detailed understanding of electric hoist, understand his every part of role. Here's a look at how electric gourd breaks the fire limiter, how it works and how to maintain it. Electric hoist the contact diagram of the limiter
The circuit breaker is larger and the current is smaller.I hope my answer will help you.
Electric gourds, which are strictly controlled by lifting equipment, are only the coil that controls the contactor, if the contactor itself is a problem. The travel switch is not protective. The fire limiter is mechanical protection and the connection is correct. It can protect.
The structure and working principle of the electric block stop device Fire limiter is used to limit the hoist crane agencies within a certain range of safety operation, installation at the end of the travel agencies, the protection of motor to control electrical appliances. Electric hoist fire limit device is installed on the hoisting motor frame, with the limit of electric hoist rod, so as to achieve the purpose of double limit of rise and fall. The fire stop is made up of the fire limiter and the guide bar. Fire limiter installed on the hoisting motor terminal box, upper and lower limit protection for lifting mechanism, its working principle is: dial the guide rod and wire rope guide line, card kits to drive off the fire limit switch to cut off the hoisting motor power supply The action of the electric hoist to stop the fire limit
A fire stop is a kind of switch that cuts off the power supply. The travel switch is just the coil that controls the contactor, if the contactor itself comes out. The travel switch is not protective. The fire limiter is mechanical protection and the connection is correct. It can protect. Fire stop limit wire rope can only ascend or falling within a certain scope of an insurance agency, in the guide wire rope Cheng Qi exposed to fire limiter, electric hoist will stop automatically. The electric gourd breaks the fire limiter's maintenance The adjustment of the fire limiter is achieved by adjusting the two bumps on the limit pole. The way to adjust is to loosen the screw on the bump and hit the block On the side of the guide plate, the card board can move the block easily. When the motor starts to rise, the card pushes the upper bound and moves up to the hook
