Spacer Damaged ?
Dear Mr.rkkushwaha,
I think that the thin wear sleeve between the bearing and the bearing seating area would have been damaged.
This could be the reason of fluid coupling running with higher vibrations.
Hope you would have taken this matter with the manufacturer. What did he say ?
Regards, ■
Size & Impact
Dear Mr. Kushwaha,
strange enough, temperature, vibration and noise are THE telling parameters in order to find out about beginning malfunction of fluid couplings. You do not talk about the damages as such, but then you name the runner which is, with ELECON, as i see it just a curved multiblade wheel fixed to the hollow shaft. Without speculating about the damages... those could only be breakages of the blade or at the fixation?
So, did you check the fusible plug lately, that is has not been changed against a plain closing screw? No. 320 might be a bit undersized when checking it against 22 kW @ 1500 rpm operational and steady run. What does the load chart say, and what does the motor curent readout say? Do you use the proper oil type as per prescription? And what did the oil look like when the "damage" occurred, did you check it for metallic particles?
Regards
R. ■
Re: Reclaimer Harrow Drive Fluid Coupling Failure
Originally Posted by Roland Heilmann
strange enough, temperature, vibration and noise are THE telling parameters in order to find out about beginning malfunction of fluid couplings. You do not talk about the damages as such, but then you name the runner which is, with ELECON, as i see it just a curved multiblade wheel fixed to the hollow shaft. Without speculating about the damages... those could only be breakages of the blade or at the fixation?
So, did you check the fusible plug lately, that is has not been changed against a plain closing screw? No. 320 might be a bit undersized when checking it against 22 kW @ 1500 rpm operational and steady run. What does the load chart say, and what does the motor curent readout say? Do you use the proper oil type as per prescription? And what did the oil look like when the "damage" occurred, did you check it for metallic particles?
Regards
R.
The breakage of blade appears after dismantalling of coupling. The oil looks like paste.[ silver + oil] ■
Fluid Coupling Failure
Did you check the support bearings for this part? When the coupling support bearings go out of spec, it allows the runner and impeller interface to contact and self-distruct. Maybe, before full failure there is a period where the two slowly grind there interface before full fracture? ■
Some Sight To See
Dear Mr. Kushwaha,
it would be so very kind as to provide some photos of the broken element and dismantled coupling, we all could learn from that.
The grinding & successive breakage of the runner as per Mr. Nordell would become visible, same if it is an issue of cavitation (oil contains water / is not as per spec and starts to fret into the high pressure surface areas of the blades.
However, taken into consideration everything known until now: Imo the supplier should now be approached and the root cause of the issue should be firmly established lest the incident shall reoccur.
Regards
R. ■
Reclaimer Harrow Drive Fluid Coupling Failure
Reclaimer harrow drive:
fluid coupling: CDIR 320 WITH FCFB6, Motor power : 22 kw/1500 rpm, Gear box : SDN 280, Ratio 112/1
Problem : Fluid coupling runner got damaged frequently without any pre symptoms like high temperature , vibration or noise. Motor never get overload. fluid coupling fuse never fail. what are the causes? ■