Transcript Kverneland Group Importer Event at Agritechnica, Hannover

Qualidisc – a success story!
1
The 5 reasons of the success
1. The most versatile compact disc on the market
1. Able to work from 2 to 15 cm
2. Able to work on all types of conditions:
a) On wheat/barley stubbles
b) On rape stubbles
c) On sunflower stubbles
d) On soya beans stubbles
e) On maize stubbles (chopped or non-chopped)
f) On grass land
g) After ploughing
e) For destroying intermediate crops with big
amount of residues
f) Even in wet conditions
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The 5 reasons of the success
2. Some key features
1.
Big disc diameter : 573x6mm or 520x5mm
a) Perfect cutting quality even at shallow work (35 cm)
b) High capacity with big amount of residues &
ploughed lands
c) Long lifetime even in sandy soils
2.
Conical disc shape for:
a) Constant cutting angle whatever the disc
diameter is.
b) Good penetration with the aggressive angles
(not necessary to add weights)
3.
Heat treated disc at 55-58 HRC
(200kg/mm²)
The 5 reasons of the success
2. Some key features
4.
Strong & reliable bearings
a) No maintenance bearing
b) Oblique contact ball bearing for high radial and
axial load capacity
c) Perfect sealing system
d) Big shaft diameter (35 mm)
e) Easy change possibility (hold by one nut)
f) Locked by special washers
5.
Strong disc arm:
a) Tubular arm to face to high lateral forces
b) Hub nut protected into the disc arm
2 ball bearing with
oblique contact 40°
Shaft ø 35 mm
Seal with 5
lips
O-ring
The 5 reasons of the success
3. Perfect working quality
Kverneland Qualidisc
1.
Impeccable cutting quality thanks to:
a) Notches to avoid any lateral movement during
work for a fixed cutting angle and perfect cutting
quality
b) Strong torque of the rubber safety system
c) The lateral overlapping adjustment
2.
Good levelling quality:
a) Long deflectors to maintain all the soil flow
b) Mounted on parallelogram to follow the ground
contour
c) Deflectors can release when stones or straw
accumulation
d) Parallelogram lateral adjustment
e) Levelling harrow to control the soil flow
f) Central tine in the middle on fold machines
Competition
The 5 reasons of the success
4. Friendly settings
1.
Depth control:
a) Easy adjustment of the working depth by
hydraulic cylinders
b) Easy depth control adjustment by spacers on
mechanical or hydraulic depth adjustment
c) Easy depth adjustment on front wheels
(Qualidisc T)
2.
Lateral deflectors:
a) Easy depth adjustment by pins
The 5 reasons of the success
5. Exhaustive quality tests before production
1.
Strain gauge tests (strains measurement):
a) Transport test with bumps at 15 km/h
b) Working test with difficult conditions (turns,
stones,…)
c) Data measured and analyzed
2.
FEM (Finite Element Module) calculation:
a) R&D designs the different parts and connections
b) Data measured at the strain gauge tests are
loaded in the software
c) Weak point are analyzed and corrected
3.
Shaking tests:
a) Represents 10 years lifetime
b) Reproduce the strains measured at the strain
gauge tests in transport folded and unfolded
c) Analyses and modifications done if needed
4.
Field test
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The 5 reasons of the success
Thanks for your attention!