Free 186 More Best Homemade Tools eBook:  
Get tool plans

User Tag List

Results 1 to 4 of 4

Thread: Railcar rotary dumper - GIF

  1. #1
    Supporting Member Altair's Avatar
    Join Date
    Aug 2013
    Posts
    12,020
    Thanks
    1,365
    Thanked 30,299 Times in 9,998 Posts

    186 More Best Homemade Tools eBook

  2. The Following 6 Users Say Thank You to Altair For This Useful Post:

    albertq (Apr 13, 2024), desbromilow (May 19, 2021), jimfols (May 19, 2021), johncg (May 20, 2021), kboy0076 (May 21, 2021), nova_robotics (May 19, 2021)

  3. #2
    Supporting Member desbromilow's Avatar
    Join Date
    Aug 2012
    Location
    Australia
    Posts
    798
    Thanks
    526
    Thanked 362 Times in 207 Posts

    desbromilow's Tools
    obviously sped up footage - typical "cycle time" for a 3 cell unit like this is ~46 seconds. what you can't see in this footage is the positioner mechanism outside which is pushing those orecars through - the one I used to work on was a rack and pinion drive unit which had 1.1 MW of motive power, enough to tear through loaded ore cars if there was a hang-up or derailment.

    2,000+ Tool Plans

  4. #3
    Supporting Member hemmjo's Avatar
    Join Date
    Feb 2017
    Posts
    2,659
    Thanks
    251
    Thanked 1,514 Times in 855 Posts

    hemmjo's Tools
    Do the hitches swivel, or do they disconnect before turning them over?

  5. #4
    Supporting Member desbromilow's Avatar
    Join Date
    Aug 2012
    Location
    Australia
    Posts
    798
    Thanks
    526
    Thanked 362 Times in 207 Posts

    desbromilow's Tools
    Quote Originally Posted by hemmjo View Post
    Do the hitches swivel, or do they disconnect before turning them over?
    2 major styles around here - both work on the principle of the coupler (hitch) swivelling...
    type 1 - all couplers can swivel, allowing every single ore care to turn independent of the adjacent car. - some firms have 3 cell dumpers, AND 2 cell dumpers. The 3 cell dumpers have each cell decoupled so it can run in single, forward 2 cell, rearward 2 cell, or triple cell mode to reflect maintenance status.
    type 2 - every second coupler can swivel, the alternate "coupler" is a dog-bone style solid link bar. This style means the cars are treated as "pairs", and go into 2 cell dumpers only. Rio Tinto use this style.

    The couplers are expensive, so the tradeoff is lower equipment cost (couplers) vs the flexibility of being able to treat and process each car as a separate entity at all phases of processing, maintenance, etc.



    2,000+ Tool Plans

  6. The Following User Says Thank You to desbromilow For This Useful Post:

    hemmjo (May 24, 2021)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •