Posted by Errin OH on June 21, 2012 at 19:29:15 from (71.79.151.12):
I am in the research phase of a project that will incorporate a hydraulic motor. I have one here that runs a few hundred rpm. I want to use it to run a table back and forth (about 20’) It needs to be variable speed. Generally feeding will be slow, return fairly quick, but I may want to run it faster or slower as needed. The plan is to have a chain that is threaded through a hyd motor with the ends fasten to the table.
I am looking for a control valve that is kind of like an outboard boat motor control. When the handle is centered, the motor has no movement. Push one way spins the motor in on direction. Pull back it spins in the opposite direction. Both forward and back is like a throttle, the further you go the faster the motor spins.
I know they make such a thing because I have two in my skid steer. As the lever is pulled back the motor (wheels) begin to turn slowly. Pull it all the way back and it is spinning. I am not to concerned about load control as this will be operated manually and I can adjust for loading.
What the heck is that control called?
I have search;
Hydraulic speed control Hydraulic motor control Hydraulic flow control
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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