Advise required for mounting electric motor to Alvey reel
HI Gentleman.
I'm researching putting some 12v motors on a couple of Alvey reef master winches that i have laying around the shed so we can try our hand at a bit off deep dropping 200+ meters.
The main issue i have is getting the right motor, I can purchase a 12v motor 300w with 80 rpm and 22 to 25 newton meters of torque and that seems to be about the best torque motor i can get.
12v ticks the box
80rpm is a bit quick so a speed controller will fix this. i will need around 70rpm to retrieve roughly 50 meters a minute.
Torque,, here i think is my problem. 22 to 25 newton meters of torque i dont think is enough. If i've done the sums correctly, lets say 25 newton meters of torque only equates to 18.4 foot pounds or 2.54 kg-m , which to me doesn't sound like its not going to be anough to retrieve a say 30kg fish (assuming I"m going to catch 1)
If its measured in kg-cm now its 254 kg-cm which sounds like more than heaps to retrieve this fish and this motor is more than suitable
My question to all the engineers on here...... Is 25 newton meters going to be enough??
Ive reserched the heck out of it from people that have already done this and i"m not having any luck with what they have used. i've watched i think every youtube video and they all look great and I'm keen to make it happen but im stuck on the motor bit.
I have access to lathes and mills at work so that part will be covered. If anyone has already done this or can advise me it would be much appreciated
carnarvonite
Posts: 8627
Date Joined: 24/07/07
Gears
Gear it down.Have seen some early ones done on pro boats where they have used a couple of pulleys to gear them down
Alpha
Posts: 193
Date Joined: 13/02/17
Gears
Thanks carnarvonite for your reply, At the moment i'm trying to avoid seperate motor with gears and pulleys. Alvey actually manufactored one exactally as you have seen for the pro industry.
I would like to have direct drive straight onto the centre shaft either a straight motor with a gear box or preferably with a 90deg gear box.
It would be easier to do the system your talking about carnarvonite for trying work out the torque to speed ratio its the pulleys , belt, and pulley covers that at the moment im not in favour off.
Woodsy65
Posts: 162
Date Joined: 21/05/15
F
Contemplating doing the same although unsure about motor/gearbox combo aswell.
Diamond Networks in O'Connor advertise on their website an Alvey with an electric motor and a video clip of it in operation. Not sure if they would share any info regarding the motor specs - I haven't had the chance yet to call in to their shop and sus them out.
scottnofish
Posts: 1617
Date Joined: 28/08/07
have a look at fishwinch .com
they do bolt on motor kits
Alpha
Posts: 193
Date Joined: 13/02/17
woodsy
I got inspired when i seen it on the net as i was waiting for a plane at the airport and thought i got 2 of them i can do that. Now i'm back from holiday's and its doing my head in trying to get a motor and gearbox.
I've seen the video clip from Diamond Networks and rang them to see if they have a kit for them last week and sadly they don't and that i could buy one for just under 3grand. They couldn't / wouldn't help me with the motor quiries although i got 66rpm out of them at least. Maybe you could call them and find out how much torque they produce and were nearly there haha. I can appreciate them not wanting to give off information, he got a business to run..
He said he had another guy ring him earlier in the week and asking the same questions , i was the second to ring in that week and said if he gets enough interest he may sell them as a kit down the trak.
Woodsy65
Posts: 162
Date Joined: 21/05/15
Hey Alpha
Seems you have researching pretty hard! But, have you tried Motion Dynamics? They are in NSW and supply a myriad of motors/gearboxs. I intend to call them sometime when I get a chance as they may have an idea on what we are after. (I want the set up for a trip in June next year so have been a bit slack in chasing it up)
Alario brothers in the USA sell bandit reels and replacement motors for them, however only quote HP, Volts and RPM - no mention of torque though.
Woodsy
Alpha
Posts: 193
Date Joined: 13/02/17
Motion Dynamics
Funny i spoke too them today and yes they have one that has good potential. Bit slower than i would have liked but heaps of torque.
I'll check out Alario Bro's see what they got.
Keep you informed
Alpha
Posts: 193
Date Joined: 13/02/17
fishwinch
Thanks Scottnofish . Ive seen the fishwinch products and they don't list Alvey reels they only seem to do over heads or spin reels.
pelagicyachts
Posts: 1299
Date Joined: 23/02/11
I have saw a video a few
I have saw a video a few years ago of guys using 12v cordless drills hard wired (ie battery removed and jumper leads wired in) to batteries
rough but it worked and can adjust the torque
Alpha
Posts: 193
Date Joined: 13/02/17
Cordless Drill
Mates at work said get a cordless drill that will work, looked up on the net and you can purchase a propper fitting machined up to fitt your handle of your overhead real and it go's straight into your drill chuck. Never thought about hard wiring a drill to your 12v battery, I think most cordless drills are 36 or 48v?? not sure how that would work. sounds easier than what im trying to achieve.
TONY ANDERSON
Posts: 3
Date Joined: 07/08/22
electric alvey reef master
Gday Alpha,
i have made 2 x reef masters into electric - i use them commercially up to depths of 350m - i have experiemented with ratios also. i first thought about would i have enough torque so i tried 40:1 - probably enough torque but way too slow to even think about beating a shark so then i ordered 25:1 - so with the motors im using (12VDC 250W @ 3000RPM) gives me retreival at 120RPM - roughly takes me 45 sec to retrieve from 100m obviuosly with no load... i have never had to be concerned about torque, as i thought i would in the beginning.
i am currently doing a re-fit on both winches as they have been going hard for the last 4 years or so and the drag washers need replacing and even though the motor and boxes are working ok still i am putting new ones on as they seem to be getting a little tied... i am actually going to trial a 20:1 box on one of them, just to see how it goes... i really dont think it will be an issue.. the 25:1 boxes have been no issue, they can pull up some huge sharks (250-300kg) the only thing is that the winch drag washers suffer a bit but to my suprise still in reasonable condition... they both get a work out when we are out there
i have always used variable speed controllers - and find that if we just go at half speed or less when pulling these big fkers in, it saves the drag wear heaps. i have found that you need to use a good quality speed controller as there are many out there that wont last even one trip out. i am currently installing 100A peak and 80A continuous rated PMW Controllers - so hopefully they will last
let me know if youu need any further info or some photos of what i have
swarf
Posts: 54
Date Joined: 07/08/13
electric alvey
I'd definately be interested for more information on the motor/gearbox/speed controller you are running Tony.
Have a couple of reef masters in the shed I've been toying ith the idea of converting, cheers