Gallery, Projects and General > The Design Shop

Planetary gear

<< < (2/2)

tumutbound:
I have an old Hitachi electric drill for which the batteries have died.
I'm planning to use it and the planetary gearbox for a power feed on my mill.

sbwhart:
Thats a real neat gear box you've built there Steve  :clap: :clap: :clap: :clap: :clap: :clap: :clap: :clap:

Have you used toothed drive belts ?,

Cheers

Stew

Bernd:
Steve,

Nice work. Could we get you to post some pictures of the mill/lathe.  :poke: It would be greatly appreciated.  :bow:

This may be something I might want to incorporate into my 9 X 20 Grizzly rebuild.

Bernd

S_J_H:
Thanks guys. The gearbox is probably one of the most successful projects I have done. I needed a slow but powerful reduction to the spindle for certain jobs.
The machine uses the gearbox for the first 3 speed reductions. It has a high speed bypass setup as well.
If you look at the pic of it installed on the mill you can see the unused dual groove pulley under the gearbox.The dual belts are removed from the gearbox and installed on that pulley. Then the large HTD belt removed from the output side of the gearbox. The spindle is then driven at a 1.7:1 ratio via the mid shaft in the head stock.
The 4 speed ranges along with the variable speed DC drive gives the following rpm ranges at the spindle-
1st gear- 0-75rpm
2nd gear-50-125rpm
3rd gear- 100-400rpm
4th gear- 400-2900 rpm.

belt setup for high speed ratio-


Rear of headstock , HTD belt removed and spindle then driven at a 1.7:1 ratio achieved by bypassing the gearbox. Sorry about the fuzzy pic,



--- Quote ---Could we get you to post some pictures of the mill/lathe.   It would be greatly appreciated.
--- End quote ---
Bernd,
yeah sure, I'll start a new thread on it.

Steve

Navigation

[0] Message Index

[*] Previous page