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with constantly rotating shaft, lift tank holding it steady at the pms for different times to pleasure.

  • Thread starter Thread starter Marco F inox
  • Start date Start date

Marco F inox

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good August to all,
I propose a mechanism that in its time has fascinated me and, surely it will make the hair to many.
It is, however, facing complex problems, which is growing, in all senses.
numerical data are not as important as operation, but some indication is useful to give it.
the tray does not weigh more than 40/50 n, the shaft does not make more than 50 turns/minute for which do not create detectable inertias of disturbance and, the lever is operated by the hand of a normal person.
allego complete relationship and drawing.
 

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good August to all,
I propose a mechanism that in its time has fascinated me and, surely it will make the hair to many.
It is, however, facing complex problems, which is growing, in all senses.
numerical data are not as important as operation, but some indication is useful to give it.
the tray does not weigh more than 40/50 n, the shaft does not make more than 50 turns/minute for which do not create detectable inertias of disturbance and, the lever is operated by the hand of a normal person.
allego complete relationship and drawing.
for this project I think it is necessary to give some extra information, waiting to present some photos later.
the mechanism is applied on an agricultural machine and, as in reverse the tree turns backwards, I put a third spring on the arpion of the tree, as a safety element. so that he doesn't have to get involved if he pulls the lever.
everything works therefore with two different calibration compression springs, mounted axially on the shaft slightly compressed, operating the lever generates a compression of about 8mm.
 
these 8 mm. lever pull axial, move 8mm. to the left the reel, so be caught by the shaft and take it in rotation.
attention, the coil must only make a miserable lap, then be released from the harpion.
the tank will have reached the upper dead point. (pms).
now serves something that blocks the reel in position pms, but that releases it at the same time from the arpion.
 
to better understand this passage, it must be said that on the coil, in a radial sense, were added from both sides, two parallelepipeds of rise of 8x8 mm.
the left one as we have seen, is hooked by the harpion, while the right one serves to hook the reel to reach the pms.
pulling the lever, in addition to pushing the reel to the left, it creates to the right, between the fixed structure and the sliding one, a deep circumferential niche 8 mm. in the area of the pms.
As soon as you reach this niche, the coil enters you by moving to the right, because it pushes from the left coaxial spring, freeing at the same time from the harpion.
in this condition, the tree can rotate freely all the time you want, while the tray will always be hooked to the pms.
only by releasing the lever, the right coaxial spring, cancels the niche and the tray falls to the ground.
the right spring therefore serves to guarantee the return to the right, of the mechanism tied to the lever, as well as for the annulment of the niche.
 
I now send two black and white photos of the time, made to the mechanism on the table, back and front view, before being mounted.
 

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