There is another kind of conveyor which has been called a tube conveyor. In this type of conveyor, a conventional conveyor belt is used, but the belt has rubber only on the load side of the belt, the back side being some kind of fabric so it can slide easily.
The conveyor frame is a steel tube...
When I read the story of the NASA space probe being mis-directed, it sounded like one company was giving data about the characteristics of the equipment they supplied (a thruster, I believe). Another organization was using that data to compute how long the thrusters were to be operated to tweak...
Ah, but the slip stick is only good for so few places of accuracy... I grew addicted to having 10 or more digits showing on calculations starting with only 2 or 3 significant digits in the input data... [machinegun] [lol]
If the shafts move together by pivoting on a common centerline, you could put a timing belt drive from each brush shaft going to a common drive shaft situated on the centerline of that pivot. 60 to 90 RPM is pretty slow speed to get much power out of that kind of drive, so either roller chain...
For the lowest friction, it might be a good idea to look at labyrinth seals.
A carbon filled molybdenum disulfide filled nylon bearing could handle the load and would not be bothered by rain. This kind of bearing would not need much in the way of seals, perhaps just a dust cover. For what you...
Interesting. I don't find any reference to pumps by the gikian. Until it is known the problem is in a rotating shaft seal, rather than a static seal or a sliding element seal, it is hard for a person to know which of the good ideas presented here are most appropriate. It is even possible that...
Greg,
Interesting idea (the truck bumpers). There are some reasons I thought I couldn't use a bumper like you described, but on re-considering it, there just might be something useful I can do with the concept.
Doug
Greg,
Is Loctite 600 more "grippy" than 271? We use 271 on screws inside our machinery rather than threading locking wires through the screw heads. The info on 271 talks of it locking up so tight that power tools would be necessary to break the grip. Typically, the guys in the shop...
Greg,
The screen would typically be running continuously for 8 to 10 hours a day with a stroke amplitude of approximately .75" Whatever I attempted to do would have to be able to survive in an abrasive dust environment for years of this mistreatment.
We have tried travel limiters, but...
TRstuff,
That is the whole point of my question. Right now, there is no damping, so the unit does go through this resonant amplification stage as it slows to a stop. I want to surpress this, but have not seen (on the market) anything which looks like it would help.
The question is...
Greg,
I suspect the key in addition to shrink fit (if the key not needed for defining the rotational position on the shaft) is of the "Well if the shrink loosens up, maybe the key will take care of the situation" type thought.
You might want to consider modifying the design to use keyless locking assemblies. There are several manufacturers of this kind of device.
Bikon Corp., West Mombasha Rd, RD1 Box 660 Monrow NY 10950 (914)782-5650
Ringfeder (no address or phone or web info at hand here)
Peter -...
I am designing a machine who's primary function is to vibrate. A shaker screen. This kind of device is commonly supported on steel coil springs. The one I am working on will have a sprung weight of approx. 15000 lb, with 8 coil springs in parallel, each compressed 1 inch under normal load...
