Very Low Speed Hydraulic Motor
Very Low Speed Hydraulic Motor
(OP)
Hello,
I am building a hydraulically operated weld positioner for my internship. The weld positioner has a rotating plate with required output of 750 lb-ft. at .02-1.3 rpm. What do I have to do to achieve that high torque at such a low rpm? Do you recommend gearing, or can I control it with a flow controller. Do I have to worry about minimum speeds on the motor? Any advice would be appreciated.
I am building a hydraulically operated weld positioner for my internship. The weld positioner has a rotating plate with required output of 750 lb-ft. at .02-1.3 rpm. What do I have to do to achieve that high torque at such a low rpm? Do you recommend gearing, or can I control it with a flow controller. Do I have to worry about minimum speeds on the motor? Any advice would be appreciated.





RE: Very Low Speed Hydraulic Motor
We use planetary or harmonic gearing.
Charlie
www.facsco.com
RE: Very Low Speed Hydraulic Motor
Use the gearing that Charlie suggested, you can keep the drive components at their optimum efficiency points for speed and pressure. In general, choose the largest numerical gear ratio and the largest motor displacement that will give you the torque you need at the optimum transmission motor speed and pressure. The gearing also minimizes effect of speed ripple.
RE: Very Low Speed Hydraulic Motor
The cheapest drive will probably be a tiny pump/motor device coupled to a 90 volt DC motor driven by a minimal DC ASD.
Will you be graded for introducing pressurized, combustible fuel to a welding location? Might investigate alternative fluids.
RE: Very Low Speed Hydraulic Motor
I would give the following company or Eaton a call as there are so many options and configurations available.
http://www.charlynn.com/
RE: Very Low Speed Hydraulic Motor
RE: Very Low Speed Hydraulic Motor
RE: Very Low Speed Hydraulic Motor