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guydewdney
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« on: September 16, 2010, 01:15:16 PM » |
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Most modern digital timers go to 1 minute intervals (ie on at 12.00 off at 12.01) - is there one that can do 1 second intervals?
I have bought an electric grease gun - and I want to automate it to squirt one goop (thats the technical term) per day - and the easiest way would be a simple timer. But I dont know if I need 1 second, 2, 3 or 5... I reckon its 2....
Guy
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billi
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« Reply #1 on: September 16, 2010, 01:22:40 PM » |
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Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
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knighty
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« Reply #3 on: September 16, 2010, 01:50:49 PM » |
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I use simmiler ones to the link above for hard to reach bearings at work, BSL brammer's own make, (or label anyway) they're about £30 for the canister on the top and an adapter so it fits the grease nipple hole/thread
there's a 'twist' bit you set on the top for how long you want it to last.... I always set them for a year.... worked great so far
(about 2 years now)
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Justme
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« Reply #4 on: September 16, 2010, 01:53:58 PM » |
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What about using a car windscreen wiper motor to pump handle up & down?
Use the "flash" setting so it does one full cycle per activation.
Add in a simple circuit to only allow one cycle per trigger no matter how long that trigger is & one trigger per day via the 1 min timer.
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Baz
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« Reply #5 on: September 16, 2010, 03:19:26 PM » |
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Go Victorian engineering. Water dripping into bucket, eventually fills and trips some catch to empty bucket which takes 1 second to empty.......
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tony.
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« Reply #6 on: September 16, 2010, 07:05:51 PM » |
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why not buy auto greasers that have a quantity of grease and a timer already built in.
they can last for 6 months max i think before needing replaced.
we use them a bit on surface aerators in the aeration ditches/lanes so no problem on clean water.
i will have a look tomorrow for manufacturers name
tony
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guydewdney
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« Reply #7 on: September 16, 2010, 08:24:44 PM » |
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you want to climb down THERE and change the greaser? I dont - and it takes half an hour to stop the wheel.... and if you put the greaser on the end of a tube it doesnt work - I have tried... |
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guydewdney
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« Reply #8 on: September 16, 2010, 08:26:49 PM » |
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why not buy auto greasers that have a quantity of grease and a timer already built in.
they can last for 6 months max i think before needing replaced.
we use them a bit on surface aerators in the aeration ditches/lanes so no problem on clean water.
i will have a look tomorrow for manufacturers name
tony
yeah - they are 500 squid! |
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guydewdney
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« Reply #9 on: September 16, 2010, 08:27:18 PM » |
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Go Victorian engineering. Water dripping into bucket, eventually fills and trips some catch to empty bucket which takes 1 second to empty.......
lol!  |
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Iain
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« Reply #10 on: September 16, 2010, 08:35:07 PM » |
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Guy
If the auto greasers last 6 months/year surely you have to stop the wheel every now and again for maintenance/checks. Could you not stop the wheel 6 monthly/yearly and change the grease unit then whilst doing checks maintenance? At least the greasers seem foolproof and simple.
Iain
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Baz
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« Reply #11 on: September 16, 2010, 09:09:38 PM » |
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A 1 second timer is easy with a 555 chip or nice and neat like this http://www.vellemanusa.com/us/enu/product/view/?id=350494The one day will need a clean output that only triggers the 1 second once. There is a chip I think that is designed to time 1 day from 1 second pulses. |
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tony.
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« Reply #12 on: September 16, 2010, 09:15:33 PM » |
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why not buy auto greasers that have a quantity of grease and a timer already built in.
they can last for 6 months max i think before needing replaced.
we use them a bit on surface aerators in the aeration ditches/lanes so no problem on clean water.
i will have a look tomorrow for manufacturers name
tony
yeah - they are 500 squid! Guy, the ones we use squirt oil not liquid gold.- £500 indeed they look similar to the perma classic greaser. hold about 120ml and you can set the discharge time up to 6 months. |
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guydewdney
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« Reply #13 on: September 16, 2010, 09:26:22 PM » |
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 this sort of thing is around the 500 quid mark, inc vat and delivery etc etc. Nice though.... pity as Oil wont work for me - it has to be grease as the bearing is an open brass / bronze thing and as grease tight as a Greek wrestlers jock strap.....  The bearing is in a very difficult to get to location - the gap twixt chain and wall is about 2 feet, and three feet down - and everything is covered in oily ikkyness - the room is also a laundry  and food store - well a big freezer. Currently I have a manual grease gun cable tied to the hand rail - every few days I give it a pump - but I have noted I have forgotten for weeks on end (I have a calandar I mark when I grease it) - hence the need to automate. Any way - I like overly complex automated systems - the chicken coop is opened with a modified household timer and garage door opener... the tomatoes are watered from a sump pump connected to irrigation sprayer industrial valves, relays, and household timers...... you get the idea.... |
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tony.
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« Reply #14 on: September 16, 2010, 09:35:04 PM » |
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no its nothing like that, its about the size of a can of coke with a mechanical spring in the top. turn the spring to activate it, it slowly releases grease over its set period.
its fool proof
tony
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