Hooking a hyd. winch to a log splitter

[leonz]

Unless he is going to use both the winch and the splitter at the same time, he will get faster cycle times from the splitter and higher speeds from the winch using power beyond valves.

Aaron Z

Hello Aaron,

The gear type flow divider is simpler to use and provides full flow to all functions when needed as you are still dealing with heat loss and flow through piping.

 

[aczlan]

Hello Aaron,
The gear type flow divider is simpler to use and provides full flow to all functions when needed as you are still dealing with heat loss and flow through piping.

How can that be? As I understand it, ff you have a 20/5gpm gear flow divider on a 25gpm circuit you will ALWAYS have 20GPM going one way and 5 the other.
If you are not using that 5gpm, it is essentially wasted. You can never use the full 25GPM on one side of the circuit.
That is good for a steering circuit where it always has to work, but if you will only use one side at a time, not so much.

Aaron Z

 

[leonz]

The flow and delivery is not wasted Aaron as it is always there to be used for the specific function it is routed to and that is why pumps are always rated for full system output through flow dividers to the functions like hydraulic motors or hydraulic cylinders.

Continous Miners use flow dividers for multiple functions with no issues.

His tank is large enough to use a pair of small gear type flow divider for the winch and the log splitter both.

 

[J_J]

It makes no sense to use flow dividers. If the valves are sized correctly, then two valves in series with the first valve with PB will do the job.

or

This valve here will solve his problems, and is PB capable. One lever is log splitter spool, and the other spool could be used for the winch.

Surplus Center - 2 SPOOL 25 GPM PRINCE LOG SPLITTER/LIFTER VALVE

 

[aczlan]

The flow and delivery is not wasted Aaron as it is always there to be used for the specific function it is routed to and that is why pumps are always rated for full system output through flow dividers to the functions like hydraulic motors or hydraulic cylinders.
Continous Miners use flow dividers for multiple functions with no issues.
His tank is large enough to use a pair of small gear type flow divider for the winch and the log splitter both.

Yes, as I said flow divider will guarantee that he can use both at the same time, but if he has a 25GPM pump (again pulling numbers out of the air here) and wants to use all 25GPM for one task or the other, he CANNOT do that.

Aaron Z

 

[Labrador Coaster]

Good evening,

I couldn't seem to find any markings on the pump to indicate it's size, ie;gpm.

As I mentioned, it's powered by an industrial 18hp twin cylinder motor.

I will do a better check tomorrow, and also post a couple more pics that might help. I will make an order for a pressure tester and some fittings. As you have most likely noticed the hoses are set up rather poorly on the splitter, again I used what I had available in order to get it up and running, I plan to install proper 90 degree elbows to streamline everything.

The 2 spool selector valve looks like just the ticket, getting it up here by mail might prove interesting.

I have an extra pump, and can get a new motor for a reasonable price, it might be just as well to install them and have the two systems independant of each other.

LEONZ, Yes I live along the coast of the North Shore, actually called the Lower North Shore, just across from Newfoundland. Sept-Iles is our major Industrial Town where I can get parts etc.

thanks all, talk to you tomorrow

 

[J_J]

If that is a single stage pump, the most it could pump be would be 9 GPM, at 3000 psi, or 10.5 GPM at 2500 psi.

 

[leonz]

Hello Wilson,

It appears you have a vane motor for the winch which is a very good motor type for winching and its loads.

If you can please post a picture of the main pump and plumbing when you have a bit of time. the more pictures the better to help you with this
as you want to make this a simple to take care of as possible.


The winch drive does not require a two stage pump due to the gearing and or chain drive reduction to power the winch in both directions.

Your main pump is most likely (99%) an open center gear pump so its very easy to work with.

 

[J_J]

If you were to separate the two systems, and you have another engine for a log splitter, here is some data for a single stage 3000 psi pump.

HP requirements.

4 GPM = 8 HP

6 GPM = 12 HP

8 GPM = 16 HP

10 GPM = 21 HP



Two stage pump HP requirement..

11 GPM Two stage pump.= 5 HP

13 GPM Two stage pump.= 6.5 HP

16 GPM Two stage pump.= 8 HP

22 GPM Two stage pump.= 12 HP

28 GPM Two stage pump.= 16 HP

 

[Labrador Coaster]

Evening gentlemen,

Managed to snap a few pics at lunch.

The Pump is a VICKERS, but I couldn't find any markings on it.

Something else, there is no vent in the Reservoir tank, should there be?, I tried to leave the top of the return Tee on top of the tank open, but even with a 3'' pipe extension screwed into it the oil would spill out the top.

Where should I install the pressure gauge?

I'm gonna disconnect the splitter for now, I need to flush the winch and get her back up and running, weather is gonna be getting cold, and I need to haul my boat out for the winter.

What happens if I disconnect the winch ( when my little ship is on terra firma) and connect just the splitter directly to the Vickers pump. One 1/2'' hose direct to the selector valve, and one back to the tank?