The Forestry Forum is sponsored in part by:

iDRY Vacuum Kilns


Forestry Forum
Sponsored by:


TimberKing Sawmills



Toll Free 1-800-582-0470

LogRite Tools



Norwood Industries Inc.




Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL


Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades

Turbosawmill

Sawmill Exchange

Michigan Firewood, your BRUTE FORCE Authorized Dealer

Baker Products

ECHO-Bearcat

iDRY Wood Lumber Vacuum Drying for everyon

Nyle Kiln Dry Systems

Chainsawr, The Worlds Largest Inventory of Chainsaw Parts

Smith Sawmill Service

Dynamic Green Products Inc.





Author Topic: Head Raising Mechanisms - descriptions  (Read 5315 times)

0 Members and 1 Guest are viewing this topic.

Offline D._Frederick

  • Senior Member x2
  • *****
  • Posts: 1733
  • Age: 86
  • Location: Sherwood , Oregon
  • Gender: Male
    • Share Post
Re: Head Raising Mechanisms - descriptions
« Reply #20 on: October 01, 2004, 10:33:42 AM »
Slow-,

I would not rely on a set screw to provide the holding power to transmit the torgue required to raise or lower your saw head. At the minimum, you should drill a seat in the shaft for the head of the set-screw to fit in, the problem with this is that the set screw will work loose. If you have a milling machine, you could cut key-ways. On my mill, the sprockets were pinned to the shaft with roll-pins, never had a problem.

Offline Bruce_A

  • Senior Member
  • ****
  • Posts: 438
  • Age: 71
  • Gender: Male
  • I need to edit my profile!
    • Share Post
Re: Head Raising Mechanisms - descriptions
« Reply #21 on: October 01, 2004, 06:06:15 PM »
Has anybody thought of using cab jack hydraulics like they use on semi trucks?  Jack it up and release to lower.

Offline slowzuki

  • Senior Member x2
  • *****
  • Posts: 1242
  • Age: 2016
  • Location: New Brunswick, Canada
  • Gender: Male
  • Still learnin'
    • Share Post
    • On the Farm
Re: Head Raising Mechanisms - descriptions
« Reply #22 on: October 01, 2004, 06:15:34 PM »
Re the set screws, no I don't like em.  I think the garage door spring is getting replaced by acme rods.

Cab jack? Tell me more!  :P Is it a multistage telescoping cylinder?
Ken

Offline Gilman

  • Senior Member x2
  • *****
  • Posts: 1339
  • Age: 50
  • Location: Camas, WA
  • Gender: Male
  • !eliforp ym tide ot deen I
    • Share Post
Re: Head Raising Mechanisms - descriptions
« Reply #23 on: October 01, 2004, 09:51:45 PM »
Ken,
Since you have AC available, why not look into just duplicating the WM version?  Reducers are relatively cheap, same for the motors.  The best part is that method is already proven.

http://www.surpluscenter.com/sort.asp?numrec=20&lastrec=60&sort=1&keyword=PGRC&catname=powerTrans&UID=2004100122413279

If you need some help figuring out how to size your reducer, let me know and we'll work it out.  Else iff please keep us informed on what you decide to go with.
WM LT70, WM 40 Super, WM  '89 40HD
Cat throwing champion 1996, 1997, 1999. (retired)

Offline Bruce_A

  • Senior Member
  • ****
  • Posts: 438
  • Age: 71
  • Gender: Male
  • I need to edit my profile!
    • Share Post
Re: Head Raising Mechanisms - descriptions
« Reply #24 on: October 01, 2004, 10:53:06 PM »
Just a small diameter hydraulic cylinder used as a jack to push a cab forward and up.  Similar to a two piece hydraulic jack with the pump being seperate from the jack. About 18 to 20 inches of throw.

Offline slowzuki

  • Senior Member x2
  • *****
  • Posts: 1242
  • Age: 2016
  • Location: New Brunswick, Canada
  • Gender: Male
  • Still learnin'
    • Share Post
    • On the Farm
Re: Head Raising Mechanisms - descriptions
« Reply #25 on: October 02, 2004, 06:51:26 AM »
On the WM, the weight can be carried by one of these units.  My carriage would need two that are kept in sync.


Quote
Ken,
Since you have AC available, why not look into just duplicating the WM version?  Reducers are relatively cheap, same for the motors.  The best part is that method is already proven.

http://www.surpluscenter.com/sort.asp?numrec=20&lastrec=60&sort=1&keyword=PGRC&catname=powerTrans&UID=2004100122413279

If you need some help figuring out how to size your reducer, let me know and we'll work it out.  Else iff please keep us informed on what you decide to go with.


Offline Percy

  • Senior Member x2
  • *****
  • Posts: 2303
  • Age: 66
  • Location: Terrace B.C. Canada
  • Gender: Male
  • Resident trouble maker
    • Share Post
Re: Head Raising Mechanisms - descriptions
« Reply #26 on: October 02, 2004, 10:53:42 AM »
Just to confuse things more ;D ;D I seen a fourpost mill that had a similar lift setup as my fork lift. The hydralic cylinder was mounted with a sprocket on the top and the lift chain went over it, point being, a 15 inch travel cylinder gave him 30 inches of lift. It was slick. Just checkout a hydralic forklift for ideas.... ;D ;D
GOLDEN RULE : The guy with the gold, makes the rules.

Offline Larry

  • Senior Member x2
  • *****
  • Posts: 6287
  • Age: 72
  • Location: NW Arkansas
  • Gender: Male
    • Share Post
    • Copas Sawmill
Re: Head Raising Mechanisms - descriptions
« Reply #27 on: October 02, 2004, 03:47:21 PM »
Picture of how Kasco set up their carriage.  4 post type arrangement.  In 10 years I have never had to adjust anything on it but I am just a part time sawyer.


Larry, making useful and beautiful things out of the most environmental friendly material on the planet.

We need to insure our customers understand the importance of our craft.

Offline Danny_S

  • Senior Member
  • ****
  • Posts: 565
  • Age: 45
  • Location: New Brunswick, Canada
  • Gender: Male
    • Share Post
Re: Head Raising Mechanisms - descriptions
« Reply #28 on: October 03, 2004, 10:13:10 AM »
Slowzuki, do you have the cables directly hooked to the head of the mill like I had it or do they go to the head, through a pulley and back up to the top of the frame like a snatch block assembly on a winch.

This would slow down the head raising wich may make it more precise, and should cut down on the full load on the spring shouldnt it?? Or is my head still asleep and not thinking right.....
Plasma cutting at Craig Manufacturing

Offline slowzuki

  • Senior Member x2
  • *****
  • Posts: 1242
  • Age: 2016
  • Location: New Brunswick, Canada
  • Gender: Male
  • Still learnin'
    • Share Post
    • On the Farm
Re: Head Raising Mechanisms - descriptions
« Reply #29 on: October 03, 2004, 05:41:12 PM »
Danny, the wire is through the pulley on the head so I'm at 2x power already ;D

Percy, I've got the drawings at home of what you speak of on the sketches I had for a cantalever mill but it won't package into the mill I built :(

Offline GF

  • Senior Member
  • ****
  • Posts: 857
  • Age: 54
  • Location: Central Oklahoma
  • Gender: Male
    • Share Post
Re: Head Raising Mechanisms - descriptions
« Reply #30 on: October 04, 2004, 07:07:02 AM »
Does anyone have photos from a woodmizer lift system, I have never seen one before and was just curious as to how theres look?

Offline Danny_S

  • Senior Member
  • ****
  • Posts: 565
  • Age: 45
  • Location: New Brunswick, Canada
  • Gender: Male
    • Share Post
Re: Head Raising Mechanisms - descriptions
« Reply #31 on: October 04, 2004, 02:44:27 PM »
Probably get an overhead crane at St. Anne p + p cheap...... ;)
Plasma cutting at Craig Manufacturing

Offline slowzuki

  • Senior Member x2
  • *****
  • Posts: 1242
  • Age: 2016
  • Location: New Brunswick, Canada
  • Gender: Male
  • Still learnin'
    • Share Post
    • On the Farm
Re: Head Raising Mechanisms - descriptions
« Reply #32 on: October 06, 2004, 06:04:23 AM »
I don't have a photo but picture double roller chain hanging from top of cariage.  The chain goes around an idler, 90 deg wrap, back to the drive sprocket, does a 180 deg wrap on the drive back to another idler with 90 deg wrap then out the bottom inline with the top piece of chain.  A worm gear reduction unit drives it.

Ken

Quote
Does anyone have photos from a woodmizer lift system, I have never seen one before and was just curious as to how theres look?


Offline GF

  • Senior Member
  • ****
  • Posts: 857
  • Age: 54
  • Location: Central Oklahoma
  • Gender: Male
    • Share Post
Re: Head Raising Mechanisms - descriptions
« Reply #33 on: October 06, 2004, 10:11:54 AM »
Thats what I had pictured, wonder if a chain has ever broke? Maybe so in the past thats why they use double.  

Offline slowzuki

  • Senior Member x2
  • *****
  • Posts: 1242
  • Age: 2016
  • Location: New Brunswick, Canada
  • Gender: Male
  • Still learnin'
    • Share Post
    • On the Farm
Re: Head Raising Mechanisms - descriptions
« Reply #34 on: October 06, 2004, 01:04:09 PM »
There have been descriptions of fitting the double chain to the older single chain models when adding a debarker.  I read of a shaft on the worm gear reducer breaking off on a FF member.


Share via delicious Share via digg Share via facebook Share via linkedin Share via pinterest Share via reddit Share via stumble Share via tumblr Share via twitter

xx
Alternative for powered raising saw head on LT25

Started by AnthonyW on Sawmills and Milling

35 Replies
5506 Views
Last post September 16, 2015, 09:25:54 PM
by ljohnsaw
xx
legal descriptions

Started by Silvanus on Ask The Forester

12 Replies
1063 Views
Last post May 16, 2014, 12:19:12 PM
by Silvanus
xx
SAF funny harvest descriptions article

Started by jfogarty on Ask The Forester

1 Replies
589 Views
Last post July 17, 2014, 01:24:29 PM
by Silvanus
xx
Partner 65 / Vintage chain brake mechanisms

Started by flagoworld on Chainsaws

42 Replies
1087 Views
Last post September 21, 2020, 04:57:30 PM
by Al_Smith
 


Powered by EzPortal