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i think i need a spring energy-storage mechanism. Maybe a very large
wind-up clock motor? the scenario is: a slightly-valuable commodity originates at the top of a mountain. More or less a bushel at a time. there is an existing paved road. the commodity fetches a price, but not enough to pay for very much transport. the concept is to use a cargo bicycle, maybe with trailer, to carry the items down to the bottom of the mountain, "winding up the clock" on the spring-storage. at the bottom, the load is transferred to buyers. the now very-much- lighter bicycle is to be driven UP the mountain, using the stored energy. Any cat which will catch the mice is fine with me. I'm just thinking that anything involving electricity, hydraulic fluids, etc, will be too involved, and losses throguh two conversions. Capacitor storage might be feasible, if there's high quality ones being sold. The charge doesn't need to held for long amounts of time. Down the hill, then back up. Ideally, this will be a ready-to-go or mostly ready-to-go commercial item. I am rather mechanically/electrically handy. But this is business, not pleasure. Time spent should be cost-effective. |
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On May 29, 6:53 am, wrote:
i think i need a spring energy-storage mechanism. Maybe a very large wind-up clock motor? the scenario is: a slightly-valuable commodity originates at the top of a mountain. More or less a bushel at a time. there is an existing paved road. the commodity fetches a price, but not enough to pay for very much transport. the concept is to use a cargo bicycle, maybe with trailer, to carry the items down to the bottom of the mountain, "winding up the clock" on the spring-storage. at the bottom, the load is transferred to buyers. the now very-much- lighter bicycle is to be driven UP the mountain, using the stored energy. Any cat which will catch the mice is fine with me. I'm just thinking that anything involving electricity, hydraulic fluids, etc, will be too involved, and losses throguh two conversions. Capacitor storage might be feasible, if there's high quality ones being sold. The charge doesn't need to held for long amounts of time. Down the hill, then back up. Ideally, this will be a ready-to-go or mostly ready-to-go commercial item. I am rather mechanically/electrically handy. But this is business, not pleasure. Time spent should be cost-effective. I have been thinking along the same lines. Compressed air or chemical batteries appear to be real loosers due to the heat loss. Mechanical springs or flywheels would seem to offer a lot more efficiency. Flywheels have to be heavy or fast. Neither characteristic is very attractive for a vehicle. 1) How hot does the spring get when it is cycled? 2) How many times can the spring be cycled 'till fatigue diminishes its capacity? With that information, it should be easy to compare the energy density with other mechanisms. A few haphazard google searches hasn't offered up the answers to those questions in the manner to which I become accustomed so I may have to dust off some old texts like "How to do research" or "Real work as a moral virtue" :-) Sue... |
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On May 29, 8:19 am, Ron Hardin wrote:
Use a blimp. That seems commercially feasible for the logging industry but only a few bicycle sheds will accomodate a blimp without knocking out a few walls. Sue... -- Ron Hardin On the internet, nobody knows you're a jerk. |
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On May 29, 8:28 am, Greg Locock wrote:
wrote in news:1180432406.155025.128400 @n15g2000prd.googlegroups.com: i think i need a spring energy-storage mechanism. Maybe a very large wind-up clock motor? the scenario is: a slightly-valuable commodity originates at the top of a mountain. More or less a bushel at a time. there is an existing paved road. the commodity fetches a price, but not enough to pay for very much transport. A Flying fox. Used in Italy to get supplies to and from mountain tops. Two cables, one pulley, two carriers and a long bit of rope. Fantastic! Throw a few clothes-pins in the package and it is also a clothes dryer for sweaty cycle shorts. Sue... |
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On 29 May 2007 02:53:26 -0700, wrote:
i think i need a spring energy-storage mechanism. Maybe a very large wind-up clock motor? the scenario is: a slightly-valuable commodity originates at the top of a mountain. More or less a bushel at a time. there is an existing paved road. the commodity fetches a price, but not enough to pay for very much transport. the concept is to use a cargo bicycle, maybe with trailer, to carry the items down to the bottom of the mountain, "winding up the clock" on the spring-storage. at the bottom, the load is transferred to buyers. the now very-much- lighter bicycle is to be driven UP the mountain, using the stored energy. Any cat which will catch the mice is fine with me. I'm just thinking that anything involving electricity, hydraulic fluids, etc, will be too involved, and losses throguh two conversions. Capacitor storage might be feasible, if there's high quality ones being sold. The charge doesn't need to held for long amounts of time. Down the hill, then back up. Ideally, this will be a ready-to-go or mostly ready-to-go commercial item. I am rather mechanically/electrically handy. But this is business, not pleasure. Time spent should be cost-effective. A cable system with pulleys top and bottom. Two or more cargo carrying buckets. Weight of full bucket pulls cargo down and takes empty bucket up. If the cargo can't be suspended over the ground, you could still add wheels to the buckets to let them roll over the high points. You still have to get people up there to fill buckets - unless you can get the bats to deposit the guano into the bucket (just kidding). Perhaps the worker could ride an empty bucket up and just take a taut cable to ride down (McGuiver style) when his shift is over. Lot less hassle than bicycles and springs. Low tech with commonly available parts. -- ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
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