The beam pins are inefficiently designed, and will be changed on CAD shortly. They will be altered to a standard size HEX head bolt, such as one from the list show on the following link, to considerably reduce their cost in comparison to the cost of custom made pins.
http://uk.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&Ne=4294957938&Nr=AND%28avl%3auk%2csearchDiscon_uk%3aN%29&N=4294962569+4294955562+4294905479&Ns=stockPolicy_uk%7c1%7c%7cnew_uk%7c1&binCount=85&multiselectParam=4294962569%204294955562&selectAttribute=M20#breadCrumb
Another option for the pin design is to use a Clevis pin system
http://uk.rs-online.com/web/search/searchBrowseAction.html?method=browseSubRange&Ne=4294953839&N=4294947005&productNum=0838940
Alternatively, to reduce the number of components in the crane pack (as small parts may be lost) a U bolt system could be employed
http://uk.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&binCount=7&Ne=4294957561&Ntt=u+bolt&Ntk=I18NAll&Nr=AND%28avl%3auk%2csearchDiscon_uk%3aN%29&Ntx=mode%2bmatchallpartial&N=4294955388&Nty=1
The beam dimensions have once again been altered and so a revised CAD representation will also be posted here shortly, as well as any other changes to the design proposed by the stress analysis (including limits and fits which will be added as they are calculated)
Friday 9 April 2010
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Excellent post, Its really useful for me, Crane hoists are machines that are able to lift and carry heavy objects and move them to another location. They typically achieve this by using a drum or lift wheel that has either a rope or chain wrapped around it.
ReplyDeleteThanks for this great sharing.
salvia
They will be altered to a standard size HEX head bolt, such as one from the list show on the following link.
DeleteThank You...........
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