Combines What are reverse barsIJ

[Tom]

The serrations on a reverse bar are opposite those of a regular forward bar. In an N or R series, reverse bars move material toward the RH side of the machine for a bit more regurgitating while forward bars move material toward the left and out the back end. My R60 has no reverse bars. Tom Russell

 

[T__langan]

Tom Russell hit the nail on the head. Another good way to tell or remember is the rasps on a reverse bar are like the "backslash" on a keyboard [_ _ _ _ _ _ _ _ _ _ _ _ _ _] while forward bars look like the forward slash [_ _ _ _ _ _ _ _ _ _ _ _ _ _ _] It is my opinion that is how reverse bars came about - a memo from engineering to manufacturing telling them we need a bunch of cylinder bars made up with this rasp design - they intended to type [_ _ _ _ _ _ _ _ _ _] but mistakenly typed [_ _ _ _ _ _ _ _ _ _ _ _ _]. After about a million of them were made, the mistake was noticed and then they decided to stick a few in each combine until they are gone. Most of the "enlightened" have them on the scrap pile by now. Me, on the other hand, I'm collecting them for when they introduce the split flow rotor - today's reverse bars will be the Split Flow's forward bars on the right side. Tom langan

 

[JR]

So, on the split flow rotor, material from the left side of header moves up its own feederhouse, through its own cylinder and out the right rear, while material from the right side goes up as currentlyIJ Gives me a headache just to think. But it would use the reverse bars!

 

[SilverTurnedGreen]

I think what Tom is referring to is his "vision" (;-) sorry Tom) of a single, narrow feederhouse which would propel the crop mat to a single regular cylinder where the crop mat would be split into two directions and discharged in two streams, to the immediate left and right of the machine. If I may add to your idea Mr. langan, wouldn't it be "swell" if Gleaner was to add a second rotor_cylinder (possibly with a lobe grate, like an STS) which would bring the two discharge streams together and discharge them into a single windrow. As far as I'm concerned (and with my limited N6 experience) a Gleaner has little difficulty threshing any crop, it's separation which seems to be the biggest problem, and the second rotor_cylinder might help alleviate this problem. Whadda ya thinkIJ

 

[T__langan]

Yes, the split flow is merely a figmant of my overactive imagination - that is unless the engineers at AGCO Gleaner think it's as brilliant as I do. But, yes, you have the concept correct Silver Forever. I hadn't thought about a 2nd rotor though. The advantages I see to a split flow are a return to a centered feederhouse and rotor. The tin kinda covers up the fact that the current rotors sit a bit off-centered to the left. What I have imagined is a wide feederhouse - same one used on the C62 (ah! Parts commonality! Brilliant, rightIJ) going up to the center of a large P3 style rotor. Then having helicals split the flow to the right and left and have two discharges in each rear corner of the combine. This would also make for a more even spread of straw. All the drives would be the same - rotor drives off right end as it does now and would be removed to the left same as current (In 30 min. or less of course!) Another problem I foresee is where does the rotary screen for the radiator go if you have a discharge chute on the right sideIJ I'll let some other genius figure that out. Also, in all my forward thinking visions, I can't determine of the crop mat coming off the concave could be easily split without causing problems. Perhaps a divided feederhouse and heads would be neededIJ Tom langan

 

[T__langan]

I forgot to add that in all my "visions", I have yet to "see" any power shafts running through the grain tank! That would mean my visions were induced by some sort of illegal substance instead of sleep deprivation like they are now from spending too much time on Gleaner Talk. I don't know what Deere's excuse was for their shaft misplacement. Tom langan

 

[SilverTurnedGreen]

I can see it now, Tom! The VR62! Crop mat is fed into the bottom of the vertical rotor and propelled upward. Grain and tailings pass the concave and sepration grate and fall into a bottom hopper where they are conveyed to the traditional accelerator rolls. Meanwhile, the crop residue is augered to the top of the machine, THROUGH THE CENTER OF THE GRAINTANK (oops, Deere patent) where the straw or crop residue hits a reclaimed Sikorsky helicopter rotor and is spread over a 60 foot width. In wartime, the U.S. Government will conscript all Gleaner VR62 owners to combat, where their combines will be fitted with (again, reclaimed) Pratt and Whitney J85 Jet engines with weapondry mounted on their flex heads. And you thought YOU had an imaginationIJIJIJ ;-)

 

[T__langan]

Yea, and just think of the wet spots you could go through with that helicopter rotor providing lift!

 

[johnboy]

it sounds like the stills have made a great batch of moonshine this time john