pneumatic actuated linkage
pneumatic actuated linkage
(OP)
i'm using a pneumatic actuator to run a basic 4 bar linkage. the system works but the motion is quite jerky. what seems to be the problem? any ideas in what to look for in troubleshooting?





RE: pneumatic actuated linkage
"motion is quite jerky"
What type of air actuator are you using? Linear?
Continuous Rotary? Limited Rotary?
Rotary mechanism design type? manufacturer?
Maximum force or torqe required during a cycle?
Force or torque capability of input device?
Consistency level of force throughout a cycle?
Type of Flow Control circuit, Meter In, Meter Out?
Since air is compressible it can be quite dificult to control especialy when there is changing loads during a cycle. This is exagerated when the movement is slow and/or the force changes are abrupt and great.
Bud Trinkel CFPE
HYDRA-PNEU CONSULTING, INC.
fluidpower1 @ hotmail.com
http://www.fluidpower1.us
RE: pneumatic actuated linkage
RE: pneumatic actuated linkage
RE: pneumatic actuated linkage
I have smoothed starting problems by using a 5-Way valve piped with dual inlets at different regulated pressures to equalize force that can be unequal due to differing areas on the opposite sides of a single rod piston.
Two 3-Ways also work as long as they both shift simultaneously.
Israelkk's mention of the bellows design takes a way piston seal friction but as he says there is still a Rod Bushing and a Seal that must be overcome at start up.
Bud Trinkel CFPE
HYDRA-PNEU CONSULTING, INC.
fluidpower1 @ hotmail.com
http://www.fluidpower1.us
RE: pneumatic actuated linkage
RE: pneumatic actuated linkage
RE: pneumatic actuated linkage
RE: pneumatic actuated linkage
RE: pneumatic actuated linkage
RE: pneumatic actuated linkage
RE: pneumatic actuated linkage
RE: pneumatic actuated linkage
RE: pneumatic actuated linkage