X-Y tracking head design

[kurtulmehtap]

I need to design a system like the one shown at

http://www.anticyclone.myzen.co.uk/product_antenna.html

the X-Y Tracking Head with the following specifications:
Maximum angular slew rate 5 deg. /sec
Pointing error 0.05 deg.
Zero backlash gearbox
Peak output torque: 48000 Nm

I am searching but was not able to find the right
Motor gearbox combination.
Can anybody help?

 

[drawoh]

You need to hire a mechanical engineer or designer.

Your peak output torque does not mean anything to me. You have rotational inertia. You require some sort of acceleration. Stepper motors are sized to the load inertia. I would size DC servo motors this way too.

JHG

 

[kurtulmehtap]

Thank you,
The others specs I forgot:
Acceleration: 5 deg /sec/sec
slew rate: 5 deg/sec

Can you help me to select the right
high torque single phase servo motors
and the fitting zero backlash gear boxes?

 

[drawoh]

kurtulmehtap,

Actuator selection is intimately connected with the overall mechanical design, as well as with the control electronics, and even software. If you give me access to your team members and two months to work on it, I can come up with a mechanical design which will include an actuator. You will be able to deliver power to whatever it is you are scanning. The system will be arranged so that you can get at stuff for assembly, testing and service. It will be rugged and weatherproof. It will meet your accuracy and repeatability specifications.

In mechanical design, there is no such thing as scope. Everything is connnected to everything else. Your actuator selection can affect everything above, as well has a whole bunch of stuff I did not think of. This is not a simple, five minute question.

JHG