Hi, I am fairly new to hydraulics, but I have built a system that moves a platform across a distance with a fixed gear rack and a motor with a gear wheel on a sprung plate. The problem is, in time, someone will become complacent and ram the platform into its endstop at full speed. How can i use an electric limit switch and a valve combination to slow the platform towards the end of its travel? Or is there another way to do this? Thanks!
Which valve do I use? Speed control
- Thread starter Treckal
- Start date
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J_J
Super Star Member
- Joined
- Sep 6, 2003
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- 18,973
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- JACKSONVILLE, FL
- Tractor
- Power-Trac 1445, KUBOTA B-9200HST
How about a spring loaded air cylinder, with adjustable relief. The rod would be extended , and as the platform hit the air cylinder, the air will rush out one of the ports, and with a valve, adjust the amount of air release, you will have some control of the end stop, therefore, a cushion effect.
Some kind of a piston, a spring, and a tube, and valve
Some kind of a piston, a spring, and a tube, and valve
AKKAMAAN
Veteran Member
There are cylinders with end-damping......damps the last 0.5-1.0 inch of the stroke.....I dont know how your rig is designed, but this is the simplest way to do it....other wise you probobly will need a proportional valve with a motion control unit together with limit switches/sensors.....