×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Motor supplier for a top head drill rig?

Motor supplier for a top head drill rig?

Motor supplier for a top head drill rig?

(OP)
I'm familiar with mobile applications but lack experience in the area of selecting a supplier for high torque motors typically used in this application.

Requirements: 2k lb/ft output TQ @ 5000-5500 psi, 25-50 RPM. Any suggestions would be appreciated.
OS


 

RE: Motor supplier for a top head drill rig?

Hey...

Sauer-Danfoss.com would be a good place to start looking for motors of that size, although the pressure seems a little high. Is the pressure working, intermitent or peak..?

The torque to pressure ratio is low as is the speed requirement so it seems like a small motor.

I will reluctantly suggest Parker Hannifin as well...

Sourcing a motor should be pretty simple if you know the mounting flange details.

RE: Motor supplier for a top head drill rig?

Try Bosch Rexroth as well, I am fairly sure they do this type of motor

Kevin Hammond

Mechanical Design Engineer
Derbyshire, UK
 

RE: Motor supplier for a top head drill rig?

Look in the Designers Guide at www.fpweb.com for a list of manufacturers of all hydralic an pneumatic components.

The list gives most of the parameters of almost all manufacturers of practically every type of equipment.

Bud Trinkel, Fluid Power Consultant
HYDRA-PNEU CONSULTING, INC.
http://www.fluidpower1.us

RE: Motor supplier for a top head drill rig?

You can use a radial piston motor or an axial piston motor connected to a planetary gear box. If the 25 rpm requires high starting torque the axial piston motor connected to a planetary reducer will be the most efficient.

RE: Motor supplier for a top head drill rig?

The best type of motor for this application is a radial piston motor ,  Bosch Rexroth make a motor called an MCR..... The company I work for use them in such an application .They have large taper roller bearings which are suited to radial and axial loadings you will experience in this  application. Another advantage is that offer  twin speed ( this is achieved by feeding the X port with 15-25bar signal)so you can double the speed and half the torque if necessary.

RE: Motor supplier for a top head drill rig?

we use two dual stator Rineer motors over an 18:1 gearbox. Available torques are up to 50k ft/lbs with drill speeds up to 160 rpm. That's for deep holes, but you get the idea.

RE: Motor supplier for a top head drill rig?

(OP)
All- I've been away for awhile. Thanks for the input. The info I'm lacking is specific to the drill rig application. Although Bosch, Sauer, etc are well known suppliers, the Rineer motor is the only one I've actually heard of used for drill rigs. I'll do some more searching, IE fpweb, Bud. If anyone knows of a website that deals with hyd components designed for the drilling app, please advise.
Again, thanks
OS

RE: Motor supplier for a top head drill rig?

OS,
Go to www.rigzone.com   Several of the major players in drilling equipment advertise there-from their homepage you might get the needed info.  I think the radial piston motor design is what is most commonly used.  Maytag

RE: Motor supplier for a top head drill rig?

yes, we also use the sauer-danfoss pumps. Stack six up on the end of a 1250 horse Cat, for close to 500 gpm @ 3500psi. Couple of Bosch valves, but most valving is custom machined for the higher flow rates.

I personally prefer the fixed displacement vane motor closed loop with the variable piston pumps. You can get the sauer with an internal loop charge pump, but we add an additional vane pump to the stack for loop charging. Provides higher charge flows, which really means higher diverge flows for cooling.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources