Re: Home Elevator Design Question
Power (watts) = Force (newton) x Distance (metre) / Time (seconds)
(At least it was the last time I looked 
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Re: Home Elevator Design Question
Power (watts) = Force (newton) x Distance (metre) / Time (seconds)
(At least it was the last time I looked ) ■
Re: Home Elevator Design Question
And I was just about to blame Maggie Thatcher's education cut backs until I saw the 110v system. 
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Re: Home Elevator Design Question
And I was just about to blame Maggie Thatcher's education cut backs until I saw the 110v system. ■
Re: Home Elevator Design Question
My greater concern would be the safety of this elevator (lift in UK English). 1000 lb, 8 ft up in the air would hit the ground with a bit of a thump and I wouldn't want to be around if anyone was underneath! 
Some 30 years ago I had the task of designing a retro-fit safety mechanism for a small platform lift/elevator (only 1 cwt load carrying capacity) where the platform was moved by a geared motor driving a pair of transmission chains through sprockets at bottom and top of a vertical frame. Simulating both chains breaking with no high tech gizmo's was a bit hairy, but showed that the mechanism worked. ■
Re: Home Elevator Design Question
My greater concern would be the safety of this elevator (lift in UK English). 1000 lb, 8 ft up in the air would hit the ground with a bit of a thump and I wouldn't want to be around if anyone was underneath!
Some 30 years ago I had the task of designing a retro-fit safety mechanism for a small platform lift/elevator (only 1 cwt load carrying capacity) where the platform was moved by a geared motor driving a pair of transmission chains through sprockets at bottom and top of a vertical frame. Simulating both chains breaking with no high tech gizmo's was a bit hairy, but showed that the mechanism worked. ■
Home Elevator Design Question
ok guys im new on that, i'm working on a desing of the home elevator where i have 1000pounds(including load)(4450 newtons of force) on a traveling room box (room of elevator). i need to lift it to 8 feets high on a time of 15 seconds. im going to use a roller chain with a speed reductor and 110volts electric motor for that. (normally all 110 volts motors run at 1725 rpm's. The issue is that i need to know what ratio(for speed ruductor) i need and how many horsepower the motor must be to lift the load for the avobe specifications. ■