[PSUBS-MAILIST] Manipulator Hydrolic question

[swaters@waters-ks.com via Personal_Submersibles]

Cool. I am going to make one first for Trustworthy and spend some time with it before I build the deep sub. But it will take a few years to design. 
I am planning two arms on Trustworthy. One 5 function manipulator arm, one 3 function with tooling and a dredge pump.
Thanks,
Scott Waters


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-------- Original message --------
From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> 
Date:01/12/2015  6:29 PM  (GMT-06:00) 
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Subject: Re: [PSUBS-MAILIST] Manipulator Hydrolic question 


Scott,
If you can submerge the pump motor in the oil then you can have a square hyd reservoir with a rubber lid and your done, like the old school battery box.
Hank--------------------------------------------
On Mon, 1/12/15, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Subject: Re: [PSUBS-MAILIST] Manipulator Hydrolic question
To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
Received: Monday, January 12, 2015, 7:26 PM

Scott, that is a GREAT
idea, particularly in your deep sub.
Hank
--------------------------------------------
On Mon, 1/12/15, via Personal_Submersibles
<personal_submersibles at psubs.org>
wrote:

  Subject: Re:
[PSUBS-MAILIST] Manipulator Hydrolic question
  To: "Personal Submersibles General
Discussion" <personal_submersibles at psubs.org>
  Received: Monday, January 12, 2015, 7:13 PM
  
  Hank,
   
  My thought was to have no
hydraulic penetrators
  into the sub and to
only have a subconn to run

the manipulator. The pumps would be submerged in the
  hydraulic reservoir outside of the sub and
would be pressure
  compensated.  Good or
bad idea?
   
  Thanks,
  Scott Waters  
   
  
  -------- Original
  Message --------
  Subject: Re:
[PSUBS-MAILIST] Manipulator Hydrolic question
  From: hank pronk via Personal_Submersibles
  <personal_submersibles at psubs.org>
  Date: Mon, January 12, 2015 4:46 pm
  To: Personal Submersibles General
Discussion
  <personal_submersibles at psubs.org>
  
  Scott,
  The
pump runs the whole time the arm is in use. When you
  want to grab the gold filled chest, turn on
the pump and use
  the arm then turn it off
when your done. I would keep it
  simple,
besides the arm functions are continuous. It
  probably takes less power to keep the pump
running rather
  than start and stop
constantly. You could use multiple small

pumps that activate with each function, might be simpler
in
  the end. No valve bank and less
complicated.
  Hank

--------------------------------------------
  On Mon, 1/12/15, via Personal_Submersibles
<personal_submersibles at psubs.org>
  wrote:
  

Subject: [PSUBS-MAILIST] Manipulator Hydrolic question
  To: "psubs" <personal_submersibles at psubs.org>
  Received: Monday, January 12, 2015, 5:54 PM
  
  Do
  most
submarine manipulator arms have a pump for each
  cylinder controlled electronically from the
inside of the
  sub or do they have one pump
that is continuously running
  and hoses go
in the sub and controlled with valves? Or

perhaps another way? 
   

My excavators in my company have one pump that is
  engine driven and it runs continuously an the
cylinders are
  actuated by valves. Seems
impractical to me to have a
  battery driven
pump that runs continuously. 
   
  Thanks,
  Scott Waters
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