BestMotorcycleLift.info

I’m designing a hydraulic scissor lift. I have 2 platforms how do I lift them at the same rate w/ var. loads?

I am an engineering student. I have 2 platforms that need to rise at the same rate no matter the load difference between them. Both platforms must rise together no matter the load. I am using a hydraulic system with one hydraulic cylinder per platform. I have hit a brick wall…. any help would be great. Thanks

Well…

I think you can use two distance sensors of what ever type… for examples those resistive ones that have a proportional relation between distance and resistance.
The varying resistance is translated into a proportional voltage and then, both voltages can be fed into a voltage comparator.

Voltage comparator provides you a 3-state signal that indicates whether the comparison is <, > or =

This 3-state signal can be fed to some logical or electronic element that will activate the necessary pump..

now as I am typing my answer I realize that can’t be 100% valid because it is an analog activation decision (more less) rather than digital or discrete (ON OFF) decision.

Nevertheless, I am keeping the answer because I beleive you still can use this electrical approach but you might need some special controller instead of the 3-state one.

Sorry for the long answer

JLG 1932E2 Scissor Lift 19″

Scissor Lift SLX17 – Projector electric ceiling lift $7,508.99 Marketing description is not available….

Tablecraft 10 1/4 Stainless Steel Combo Lift Scissor Tongs Tablecraft 10 1/4″ Stainless Steel Combo Lift Scissor Tongs…