crane wheel / shaft connection. 2

[conveyorbud]

I have a stacker wheel truck to rebuild. the space is tight. I need options besides press fit. I may be able to get a key in but there is no hub to speak of and thus set screws are out of the question. the wheel is driven so i need a positive way to tranmit the prime mover to the wheel. a creative key set-up would be preferable. If someone has a creative solution to attach a steel crane wheel to a shaft i would like to hear it.

 

[GregLocock]

can you give some dimensions, and loads?

Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[MikeHalloran]

How about a Dutch pin, threaded instead of peened?

I.e., drill a hole at the hub/shaft interface, parallel to the shaft axis, right where you'd put a pair of keyseats. Half the hole in the shaft, half in whatever hub there is.

Tap it all the way through, then insert a headless setscrew, as long as the axial length of the hub, secured with Loctite.

After this, the various parts won't interchange with each other, but you probably don't care.

Of course, this only works if there's no bearing outboard of the wheel.



Mike Halloran
Pembroke Pines, FL, USA

 

[MintJulep]

QD; Taper-loc; Tran-torque.

 

[unclesyd]

A note of caution based on my experiences with stackers. All of our stackers, mostly cranes, came under heading of lifting devices as define by OSHA, governed by ANSI Standards at the time. These standards prohibited any modification of essentially any part a lifting device without written approval of the manufacture.

 

[CoryPad]

How about a splined shaft? Or a trilobular shaft? Much better torque transmission than a key.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[MikeHalloran]

Unclesyd is right; in the US, an OSHA rule trumps most anything else.

I suppose the next question is: When you rebuild a crane, do you become the manufacturer?




Mike Halloran
Pembroke Pines, FL, USA