Project Zetros

[Cab-over Pete]

This what is directly under the main front cross member of the Bredal, so as you can see, no room under that to fix any kind of mounting inside the chassis.
You can see there is room down the outside of the chassis to do something and there is more room on the other side.

Lots of room at the back so this is where we will fix it rigidly.

I was considering using something like these small top link units but instead I think I will use the Leisinger ball joints that were on the Xerion. They are maybe a little on the heavy side but better that than too small. Plus, the top links need a fair bit of vertical room, half as much again than the ball joints.
You can see the big dark grey cross member has been used and welded up at least twice already.
Recycling at its best!

 

[Cab-over Pete]

Where can I get good strong extension springs?

Something like a foot long, 2-1/2 inch outside diameter and coils as thick as your little finger?

Maybe with a threaded bit sticking out of each end?

 

[will l]

Used these for unimog uprated springs but it was along time ago

JT Adams (Springs) Ltd. - West Bromwich | West Midlands

Manufacturers an Suppliers of Compression, Torsion and Extension Springs, Wire Formings and Presswork - West Bromwich | West Midlands - 0121 5259758.

jt-adams.co.uk

or off the shelf same as horsch sprinter maybe
double each side

Ressort 355 mm type stripel

www.promodis.fr

 

[Will 1594]

This what is directly under the main front cross member of the Bredal, so as you can see, no room under that to fix any kind of mounting inside the chassis.
You can see there is room down the outside of the chassis to do something and there is more room on the other side.

View attachment 931010

Lots of room at the back so this is where we will fix it rigidly.
View attachment 931011

I was considering using something like these small top link units but instead I think I will use the Leisinger ball joints that were on the Xerion. They are maybe a little on the heavy side but better that than too small. Plus, the top links need a fair bit of vertical room, half as much again than the ball joints.
You can see the big dark grey cross member has been used and welded up at least twice already.
Recycling at its best!
View attachment 931012

Pete look how an amazon cirrius drill hopper is fixed to chassis ,2 rigid points at back ,then a pivot like affair at front , to take the flex

 

[Zebbedee]

If you are using springs at the front I would use compression springs with a bolt through them as I don’t think extension springs will work correctly for your job, they will allow two much movement I reckon. We have springs holding our sprayer frame on and if I remember correctly I may have sourced them from KRM

 

[Cab-over Pete]

Used these for unimog uprated springs but it was along time ago

JT Adams (Springs) Ltd. - West Bromwich | West Midlands

Manufacturers an Suppliers of Compression, Torsion and Extension Springs, Wire Formings and Presswork - West Bromwich | West Midlands - 0121 5259758.

jt-adams.co.uk

or off the shelf same as horsch sprinter maybe
double each side

Ressort 355 mm type stripel

www.promodis.fr

Thank you, I’ll take a look at that. I kind of recognise the name from sometime in the past.

 

[Cab-over Pete]

If you are using springs at the front I would use compression springs with a bolt through them as I don’t think extension springs will work correctly for your job, they will allow two much movement I reckon. We have springs holding our sprayer frame on and if I remember correctly I may have sourced them from KRM

Ok, brackets close together and a spring extending downward? There is a similar thing on the Big A, although extending upward, however the chassis doesn’t need to twist so it doesn’t do a lot.

 

[Will 1594]

And put it on weigh cells

 

[Zebbedee]

And put it on weigh cells

If Pete is the same as us most of the lime is gps spread which makes the weigh cells fairly pointless, lime specific weight doesn’t vary much in a batch along with a positive feed on a belt through a known size door makes the job very accurate anyway. If blanket spreading it may be a gimmick to keep customers happy but in reality not much better just more components to go wrong

 

[Lofty1984]

Would the springs on a claas rake be up to the job ?

 

[Cab-over Pete]

Never needed weigh cells yet, never got it so wrong that I thought I did.
Never been more than one bag of fertiliser out on any job I’ve been to.
I’ve asked many customers if they thought they could make use of them, never had the answer “yes”

 

[Henarar]

they use compression springs on gritters

 

[Lofty1984]

 

[will l]

Perhaps consider using hydraulic rams loaded to a pressure with accumalators

 

[Simon Chiles]

Perhaps consider using hydraulic rams loaded to a pressure with accumalators

This is what I would do. Two hydraulic rams ( one each side ) linked with an accumulator. Panhard rod to keep it from swaying.

 

[Highland Mule]

Where can I get good strong extension springs?

Something like a foot long, 2-1/2 inch outside diameter and coils as thick as your little finger?

Maybe with a threaded bit sticking out of each end?

Sounds like what you find on an old Massey spring tine cultivator.

 

[Chuckie]

If you are using springs at the front I would use compression springs with a bolt through them as I don’t think extension springs will work correctly for your job, they will allow two much movement I reckon. We have springs holding our sprayer frame on and if I remember correctly I may have sourced them from KRM

I would look at using Aeon hollow rubber springs with a bolt through the middle, they have a more progressive action than coil springs and wouldn't need as much pre load tension on them, and they have plenty of deflection for when the chassis twists

 

[Cab-over Pete]

I like the look of those. Do they extend?

I think some of you are missing the point. There will be no compression of the springs at all, only extension.

 

[Henarar]

I like the look of those. Do they extend?

I think some of you are missing the point. There will be no compression of the springs at all, only extension.

you use a compression spring or rubber spring on a bolt

 

[KennyO]

Would air springs be an option?