齒輪和鏈條油的更清潔替代品


11

我使用通用齒輪油潤滑摩托車的鏈條。我有一台現代化的燃油噴射機,因此鏈條是我能想到的唯一雨水污染源。我嘗試使用盡可能少的機油,以保持動力傳動系統的潤滑和效率,並減少竄動。但是,"少"並不是"根本沒有",所以我正在尋找一些替代品,無論是蔬菜還是合成的,都是經濟的,可最大程度地減少土壤和水的污染,但同時又具有必要的潤滑性,粘性好,並且不太粘以減少灰塵的吸引力。如果可以在船用舷外發動機的齒輪箱中使用相同類型的油,那就更好了。

在這兩種應用中,我的需求絕不是高性能的-12 kW(16 rwhp)摩托車和一系列最大20 hp的舷外機。但是,更多的選擇是更好的選擇。

4

First of all you are picking up pennies while the world is burning bills. The amount of oil from your chain is small even compared to the amount of oil that comes out of your exhaust, which in turn is small compared to the unburned hydrocarbons from the gasoline, which in turn is small compared to what everyone in their SUV's are releasing. You are already a good citizen.

But that's not what you asked.

Take a look at some of the products at bicycle shops. One product I like is a graphite powder in mineral spirit solvent & oil. The spirits evaporate, leaving the graphite with enough of a film of oil to keep the graphite from running away. There is similar product that uses Teflon. A friend who is an ardent cyclist claims that for these to work well, you have to remove ALL the oil from the chain. This usually means two washes with solvent, then a wash in acetone to remove the oil film left by the solvent. But talk to the guys in the bicycle shop.

Caveat: The forces between chain and tooth are a LOT smaller on a bicycle than on a motor bike. If this doesn't work you may need two new sprockets and a chain.

My estimate is that the graphite would work better. The key for it is keeping it attached to the chain.

For an outboard motor, the key is keeping the seals intact. Also: Many outboard motors discharge their exhaust under water. This is NOT friendly. Run your motor in a barrel of water for 20 minutes, let the water set overnight, and look at the reflection in the morning.

Almost all pollutants are tolerable sufficiently diluted. Using a tiny put-put going through a swamp that sees a dozen boats a year is unlikely to be an issue. Take close look at the shore line, however at any marina.


5

Commercial/ Factory designs have been replacing the power transmission of "lubricated chains" and "gear mechanisms" with high performance "Timing Belts" made of special polymer composited with steel fibre etc.

One of our family was extensively involved in such redesigns/ solutions in all possible industries beyond automotive that you can think of (hydro electric, textile, machinery, airport, industrial/ manufacturing, arms manufacturing, food production & so on). And as a student I remember watching this case study video that talked about how Harley Davidson that benefited a lot from adopting certain company's high performance belts. I could not find that video, but I'll try again to find it for you.

There's industry of Billions replacing chains with such "Power Transmission Belts".

Update: Such a mechanism/ drive train added to a bicycle with Infinite Gears using CVT.

https://www.gizmodo.com.au/2014/07/how-priority-bicycles-made-a-maintenance-free-bike-for-under-400/

For starters, the belt drive is a lube-free affair, so you never have to add grease, and rust shouldn't be a problem (also, no grease on your pants if you're commuting to work). Priority is using the C-Drive system, which has gotten extremely popular in Europe but hasn't blown up stateside yet.
https://www.lifehacker.com.au/2017/03/how-a-bike-with-infinite-gears-changed-the-way-i-commute/

The Continuum gets its name from the continuously variable transmission (CVT) hub located on the rear wheel that gives the bike a spectrum of gears rather than a fixed number. This style of hub gave me a much smoother ride than a derailleur system, since the drivetrain components weren't brashly jumping between fixed gears on different sprockets but instead smoothly moving over the surface of rotating balls.

Gates, the maker of the belt drive, claims it lasts about 10 times longer than metal chains, and it's easy to imagine after a few months using it. The drivetrain has shown no signs of significant wear even after riding through rain and snow. It's rust-proof, never needs grease, and most importantly, provides a smoother ride because it's not rattling like a goddamn metal chain would.

Image: Gizmodo / Michael Nunez enter image description here

The belt drive alone has changed my life, and now that I've used one, I'm never ever going back to using a bike with a metal chain. I can't emphasise how much smoother the ride is and the immense benefit of getting rid of the chain derailleur.

enter image description here Source: http://www.revzilla.com/common-tread/why-things-are-chopper-drivetrains

enter image description here Source: Chains vs Belts - http://www.motorcycledaily.com/2008/05/08may08_chainsvbelt/

Discussion on Google groups: https://groups.google.com/forum/#!topic/rec.autos.misc/79N2Sy8sf94%5B1-25%5D