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Post by eppie on Feb 28, 2009 18:34:56 GMT 1
...It seems that these days, there are more escorts, porn and cheap loans advertisement postings on this site than anything usefull... Doesnt anyone know a decent subject to discuss ?  |
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Post by dbear on Mar 1, 2009 22:38:11 GMT 1
Ya know I didn't see anything remotley resembling a tractor on any of those sites. What's up with that?  |
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Post by Jon B on Mar 2, 2009 2:33:57 GMT 1
Pity what has become of this place.........we have all moved on!
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Post by pudding as guest on Mar 2, 2009 10:27:44 GMT 1
ya i gone off a lot of sites, plonkers have come allong and stuffed em
spammers here,
tascowboy at farmphoto put me off that site
deereest at FTF put me off that place,
some retards just need to step away from the computer and step outside
mind you i ain't perfect.....
i see zetorworld is still doing well, that is interesting forum to read renze
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Post by kevanos on Mar 2, 2009 15:31:06 GMT 1
It is sad, indeed....
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Post by eppie on Mar 3, 2009 22:17:52 GMT 1
i see zetorworld is still doing well, that is interesting forum to read renze ...We used to have a dog, when i was little... Whenever my dad put new piglets in a group, and they would fight, my dad would put our German shepherd in there. It bit the troublemakers, and after a day, all piglets had the same scent (unfortunately the dog too !! ;D ;D) Having the same scent, they recognised each other as brethren...  |
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Post by adamL on Mar 3, 2009 22:24:06 GMT 1
hmm, so what shall we talk about then?
Why isn't that hydrogen tractor NH developed electric powered, I mean, why does the motor drive a transmission not just a motor in each hub?
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Post by eppie on Mar 3, 2009 22:37:32 GMT 1
Why isn't that hydrogen tractor NH developed electric powered, I mean, why does the motor drive a transmission not just a motor in each hub? I dont know if you recall me saying this some time ago in the John Deere Premium E discussion, but: In my vision, within 20 years a lot of hydrostatic and powershift drives in many application fields will be replaced by electric drives. Electric drive gives a lot of design freedom, the possibility to regenerate brake energy, lots of low speed torque. All we need is some gut in the industry: A large manufacturer, say ZF, must step up and build an axle with integrated electrical motor, inside the diff housing. A generator is a fairly standard industrial part, and so are the controlling components. The same was with CD players 20 years ago, and DVD players 5 years ago: the first DVD players were 350 Euro, because the market was small so the sales volume low, and the costly development was still recent. Right now, 5 years later, i can pick up a DVD player at a big consumer electronics warehouse, for 35 Euro !! When we look at forklifts, the electric drives are of such level of efficiency, reliability and price, that the technology is there. Within agriculture and construction, the electric drive technology is still floating between price, availability and demand. At the moment its a bad time to make that step (world wide economical recession) and the fashion prescribes Vario or CVT in Ag, and hydrostatics in construction. As soon as Vario isnt fashionable anymore, i think we'll see these readily available, electric, integrated drive solutions appear. Mostly the demand drives the availability. but with big new things, availability drives the demand. ========== Oh, to get back to your original question: I assume they wanted to experiment with hydrogen, not with electronic drive, so they took a cheap off-shelf industrial electric motor only to show that their hydrogen powered tractor CAN move by itself.. Electrical motors that are efficient at high rpm but can also generate the high torque, are quite pricey because they arent available as common industrial parts, only as purpose built wheel motors for battery forklifts. By the way, did you know that ZF already has the technology ?? They build complete electrical wheel motor/axle assemblies for the forklift industry, and also units for train manufacturers... www.zf.com/zfXmlServlet?sessionAttribute=xmlRoot&languageISOCode=DE&resultUrl=/corporate/de/products/product_overview/ProductContentPage.jsp&serviceUrl=http://apps01.zf.com/zf.productDataBase/service//applicationLayerSelect&applicationGroupID=&divisionShortcut=&applicationID=12278&businessUnitShortcut=&productFormID=330257&productGroupID=12144&productTypeID=329693&productTechnicID=12141apps01.zf.com/zf.productDataBase/service/mediaFiles?levelTypeName=Products&levelID=335918&mediaFileName=ZF-railway%20catalogue_CN.pdf |
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Post by JoeinTX on Mar 22, 2009 6:53:17 GMT 1
Pity what has become of this place.........we have all moved on! Isn't that the truth. I haven't been around here in years and had to search hard and fast to find it again since changing 'puters over the years. Wow, the talks and folks that used to fill places like this. But, oh well, I'm open to ecorts and alcohol as well so maybe all isn't lost after all....
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