Results 1 to 10 of 12

01182013, 12:14 AM #1
 Join Date
 Jan 2013
 Posts
 6
 Location
 Iran
 Tractor
 Fergosen

01182013, 02:26 AM #2
 Join Date
 Mar 2010
 Posts
 1,731
Re: Two layer cultivator shank
Allows more flex or spring.

01182013, 02:48 AM #3
 Join Date
 Jan 2013
 Posts
 6
 Location
 Iran
 Tractor
 Fergosen

01182013, 09:07 AM #4
 Join Date
 Nov 2012
 Posts
 1,323
 Location
 mansfield,Il
 Tractor
 john deere
Re: Two layer cultivator shank
That looks more like chisel plow shank , runs deeper than a cultivator . Actually 2 layers stiffen it up alittle and still allow some flex .

01182013, 09:45 AM #5
Re: Two layer cultivator shank
This appears to be a john deere C10 leg . Light field cultivator , This type flex too much and dont penetrate as good as a heavier single shank as a chisel plough and tend to straighten out with age .

01182013, 12:27 PM #6
 Join Date
 Jan 2013
 Posts
 6
 Location
 Iran
 Tractor
 Fergosen
Re: Two layer cultivator shank
Thank you D7E

01242013, 02:07 AM #7
 Join Date
 Jan 2013
 Posts
 6
 Location
 Iran
 Tractor
 Fergosen
Re: Two layer cultivator shank
plz specify your comment source? im need sources.
where i can find technical (Engineering) information about it?
ex. design parameter or formula!
extra from http://www.industriehof.com/katalog/...e/2747?lang=en
Can i use the leaf springs relations for it?Last edited by omidlolo; 01242013 at 02:55 AM.

01252013, 09:06 PM #8
 Join Date
 Feb 2009
 Posts
 1,868
 Location
 Northeastern Minnesota
 Tractor
 JD 7720; Kubota M135GX, NH TS115A; JD 6230; Kubota L5740
Re: Two layer cultivator shank
Bending stiffness is equivalent to the modulus of elasticity and the moment of inertia. In the case of the flat bar which is the actual cross section of each cultivator shank at any point, the moment of inertia is width x thickness cubed / 12 (English measures). If it was a single beam for example 1 inch by 1 inch for easy calculations, I = (1 x 1)/12 or 1/12. In this case you have 2 beams each 0.5 thick. The cube of 0.5 is 0.125 so each beam has a moment of inertia of .125/12, but you have 2 independent beams stacked so it is additive or 0.25/12. The formula is M=EIk where M is the bending moment, E is the modulus of elasticity for the material being used, and I is the area moment of inertia. k is the resulting curvature. Two thicknesses stacked together are 1/4 as rigid as 1 single thickness unless they are completely fused for the entire length.
JD7720; KubotaM135GX; NH TS115A; JD6230; KubotaL5740

01312013, 03:24 AM #9
 Join Date
 Jan 2013
 Posts
 6
 Location
 Iran
 Tractor
 Fergosen

01312013, 04:16 AM #10
 Join Date
 Mar 2009
 Posts
 3,588
 Location
 Lee, IL
 Tractor
 John Deere 1070
Similar Threads

Covington 2 row stiff shank cultivator
By RockyCreek in forum Parts/RepairsReplies: 2Last Post: 05012012, 03:12 AM 
9 shank cultivator
By TexasChris in forum Ag Tractors & MachineryReplies: 3Last Post: 04212012, 10:33 PM 
Tiller Cultivator Shank Adjustment
By Wayne_Freeman in forum AttachmentsReplies: 1Last Post: 03222010, 07:31 PM 
rotary cultivator vs sweep cultivator
By HD Labs in forum AttachmentsReplies: 1Last Post: 03192009, 01:57 PM 
Replacement Cultivator shank
By xlr82v2 in forum Ag Tractors & MachineryReplies: 4Last Post: 01042008, 11:15 PM