Need help on irreversible screw drive system
Need help on irreversible screw drive system
(OP)
Hello,
I am trying to design an irreversible actuator system for trim assembly in small jets. I'am having problems with the present ACME threads, for linear motion. So we are designing it with a thread system with 4 leads. When I say 4 leads, its got 4 different threads starting on the same shaft, this increases the pitch on each threads and also makes the system irreversible (hope everyone can visualise this!). This drive system actually works real good, when compared to the ACME thread system.
My question here is, does anyone here know more about the vendors for these kind of screw drive system or actuator system. Coz am not able to get any search for these kind of threads. And also is there a place on the web where I can get more details about different screw drive system. (Hope this is the right forum for this kind of help!!)
Thanks,
Sandy
I am trying to design an irreversible actuator system for trim assembly in small jets. I'am having problems with the present ACME threads, for linear motion. So we are designing it with a thread system with 4 leads. When I say 4 leads, its got 4 different threads starting on the same shaft, this increases the pitch on each threads and also makes the system irreversible (hope everyone can visualise this!). This drive system actually works real good, when compared to the ACME thread system.
My question here is, does anyone here know more about the vendors for these kind of screw drive system or actuator system. Coz am not able to get any search for these kind of threads. And also is there a place on the web where I can get more details about different screw drive system. (Hope this is the right forum for this kind of help!!)
Thanks,
Sandy





RE: Need help on irreversible screw drive system
Dunno if they still make them, but they worked pretty well at 900 deg. F.
RE: Need help on irreversible screw drive system
RE: Need help on irreversible screw drive system
Don't know of a supply but anyone that can make acme threads on a lathe can give you almost any number of leads you want. It is only limited by thread size vs work piece diameter.
RE: Need help on irreversible screw drive system
Thanks a lot for all your advice, i had a question for thruthefence's suggestion , I had a chance to check out the Cessna 500 trim actuator system. And it really works perfect for our application. But is there any place I can get more details on their system, like vednors, specs for the Cessna manual trim actuator system. Or any other details.
Thanks in advance.
RE: Need help on irreversible screw drive system
RE: Need help on irreversible screw drive system
Bob