Subject:
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Re: New Crane...
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 21 Feb 2008 03:52:16 GMT
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Viewed:
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11769 times
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I can't see from your photos how you're stopping the main structure lifting off
the base.
Correct me if I'm wrong, but crane turntables hold the superstructure down so
the load moment is transferred to the crawler base. I've seen photos of cranes
tipping and they don't fall off the turntable, they take the base with them.
I've had a couple of (incomplete) goes at a crawler, and I've used two
turntables, one inverted, with the centres tied together and to the
superstructure, and the outer rings locked into the base. That way, the
superstructure can't detach from the base.
Great looking model so far though.
Regards
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Message has 2 Replies:
 | | Re: New Crane...
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| (...) This is correct. Real cranes have roller bearings that are pinned in place that bear the weight and force of the superstructure where it is connected to the base. (...) I am going to use a threaded axle through the center to hold the plates (...) (16 years ago, 21-Feb-08, to lugnet.technic)
| | | Re: New Crane...
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| (...) Yes, that is correct. (...) See also (URL) technique> - this allowed me to lift the whole crane base up by the superstructure. ROSCO (16 years ago, 21-Feb-08, to lugnet.technic, FTX)
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Message is in Reply To:
| | New Crane...
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| I have been working on my next project... Terex Demag has introduced a new "twin" kit for the CC8800. This crane has a capacity of 3200 tons.... I have started my model of this monster! Check out the bs folder for any new progress.... (URL) is going (...) (16 years ago, 19-Feb-08, to lugnet.technic)
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