Recent content by teun-lll

In my calculations your last formula gives 1849.14 N/m. this seems to be high. I now realize that its logical that the angle can't be the same everywhere if you need constant torque.

Great, thanks guys! Yes somehow the numbers seem to change along the way. But i recon he means 7 degrees. Thx for pointing out that my calculator wasnt set to degrees :doh: 7 degrees is what i measured when taking two points very close to each other and creating a line. i did this at multible...

yep it is related. good research. i want to lift the mass 150 mm. The 300 mm is the max distance. so the snail cam has 150 mm drop and from there another 150 mm to the center. as shown in the picture. The design i showed is a very basic version of what i want to do. But in principle this is...

Hello, Im trying to calculate the torque needed for a system that i want to design. i want to raise and drop a weight of 800 kg. Ive made some calculation but I am not certain i did it right. I think I am on the right track but i feel like the numbers are a bit high. I have a hard time finding...

We fill the bag from the top with a conveyor belt. We hang the BB like the drawing in the attachment(without the springs)

This sounds like a fun test. If the shaker table returns with the 4 pole unbalance motors i will also try this! Allright, I will update you. I made a prototype of the mechanism i was talking about. I see that i might not need a spring at all. The rotating motion of the freely rotating backplate...

Allright i think i have to explain my idea a bit better. The spring needs to change so that it just absorbs some of the shock from falling. I want to do this so there would be less sound and less wear. In the example i sent it accelerates the green shaft on its way down. I indeed don't need...

Hey Rive. I really like the way you think. Outside the box... nice! However, I can not put the table on top because it needs to vibrate while being filled. But i agree that it needs some weight in order to work. But in conclusion: Im going to try a more vigorous shaker table I will try...

hahaha! Bigger screw is not a bad idea... Do you mean that i can use a ball screw to raise and then drop somehow? I'm thinking about testing a hydraulic shaker. Maybe with a very low frequency, high amplitude. There are so called snail cams. They allow for rapid downward acceleration. I think...

Thanks Tom. I've thought about enclosure walls for the compactor. Yet i would still be left with the screw being under high force and it will probably wear fast. I'm also scared that a very aggressive shaker table doesn’t work because the particles keep jumping around instead of moving to a...

haha thanks for sparring with me. The Whole bb weighs 700kg and contains plastic shredded scrap(not fines or granulate). Fun fact, i also tried compacting the material with the compactor you just sent. I pressed the particles in the big bag with this screw. The results were ok. I got the...

Thanks for the response. like i said before, a vibration table does not work with our product. The vibrations don't travel trough the whole bag. I have tested this option by renting a table like your example. I try not to invent the wheel again but i don't see another available option. Maybe...

Hey there. I am hoping you guys are willing to share some experience/knowledge. Im a young engineer and i would like to expand my knowledge on mechanical engineering. Currently I am trying to develop a densifier for material inside BigBags. The bigbags are loaded with particles up to a total...

Im a development engineering at a recycling company. I've found some interesting stuff on this forum and i would like to take part of some of the discussions going on! I am always open to learn new things.