hi,
I'm starting a new project to design an emergency aid lift chair for patients that fall down onto the floor in hospitals/nursing homes. The aim of my product is to be able to build a chair that can lift the patient up, for this I would need mechanical legs to add to my seat. the idea is that the legs that are going to be attatched to the seat piece will be able to lift up using electronic gears. For this, I need to invest in a motor that i can attach to the legs which will enable it to lift up the seat - hence the weight of the patient.
So my question is how many volts does the motor need to be, to be able to lift 150 kg? or if im using two motors, for the two legs, then does that mean the motor voltage can be half and half?
Bushraismail:
So my question is how many volts does the motor need to be, to be able to lift 150 kg? or if im using two motors, for the two legs, then does that mean the motor voltage can be half and half?
That is the wrong question. It would be somewhat better if you asked how many watts are required - but it would still be missing the point.
The first thing you need to do is figure out your mechanical design and how the motor will drive the mechanism, through gears, or levers or a lead screw (like a car jack). When you have that done then you need to calculate or measure the amount of torque needed from the motor. Only then can you go shopping for motors.
The voltage for the motor will probably be determined by the available power supply - for example can it use mains electricity or must it be battery powered.