The ratchet mechanism will do prevent downward motion but how to release it when you want the load to come down?? I remember a circuit which determines the direction of rotation of single phase motor & forces the motor to rotate in desired direction. I don't have the circuit & partlist details...
I agree with you that lead screw mechanism will do good. Actually it was in my earlier design of lead screw driving mecahnism. But any lead screw for that purpose, the system has be guided or channelised. otherwise the lead screw will fracture, when the system is in suspension or floating in the...
Thanx XEZ for the reply.
Generally hoists/cranes don't have counterweight measures. Also in my case there is a space constraint where i can't employ counterweights. Again the motor is rated 2 times higher than the required capacity. Its a one ton hoist, but suspended load is only 500 kgs (0.5...
I have used a single phase motor (220 V 50 hz) in a hoist application. It is used to lift a given load up & down, but being a single phase motor, it sometimes never lifts the load & starts to rotate in single direction only i.e never lifts the load. When you press UP button, it rotates...