Shovel mechanics

[frizzen]

I have seen several different crowd setups on the Dippers between brands of Facing Shovel / Power Shovel.

Old patent info is sometimes really helpful to see how it worked and what times various things became available. Scans of the machine setup manuals are also really helpful to see what's going on.

Which models are you thinking about?

Unit with Roller-chain crowd
https://youtu.be/PzEmF2GgP1g

Bucyrus-Erie looks like Cable crowd
https://youtu.be/3GQVXtvudok

Tech manuals like
https://constructioncranes.tpub.com/...1-12/index.htm
Specifically
https://constructioncranes.tpub.com/...201-120051.htm
And the next page that shows reeving diagrams

[Krewmember]

Here is some scans from my Bucyrus-Erie 22-B manual showing the cable routing and top-down view of the boom for the shovel.

The Bucyrus-Erie 22-B is a cable type machine, if you look at the cable routing two cables wrap around a pulley in the boom, one cable goes to the top of the dipper and the other to the bottom, when the drum at the pivot of the boom is rotated one cable unwinds and the other is wound pulling the dipper in or out.









-Shawn-