Level Winch Mechanism? Or not?

[eeyore2000]

Hi,

I have been working on a project requiring me to lift a 370kg load through a height clearance of 30m. to do this, my team and I have designed for a frame and also utilising a winch system.

the issue arises with the fleeting angle, which is the angle from the winch to the first sheave, which is recommended to be within 1.5 deg. my current winch dimensions is 155mm across, and the maximum distance from top sheave (roller) to my winch is 1.2m.

i have read that perhaps a level winch mechanism would be able to do the trick, by employing certain diamond screw grooves on a shaft to help to traverse the rope across the drum.

but i am not too familiar with these. should i even attempt to delve further into these, or is there anyone better solution for this?

Many thanks in advance,
Eeyore

 

[Achy47]

Hello Eeyore,

Thank you for sharing your project with us. It sounds like you and your team have put a lot of thought and effort into designing a frame and winch system for lifting a 370kg load through a height clearance of 30m. The issue you are facing with the fleeting angle is a common one in winch systems and can greatly affect the efficiency and safety of the operation.

Firstly, I would like to commend you on considering a level winch mechanism as a potential solution. This type of mechanism, also known as a horizontal winch, can greatly reduce the fleeting angle and increase the efficiency of the system. The diamond screw grooves on a shaft can also help to guide the rope across the drum and prevent it from slipping or getting tangled.

However, as you mentioned, this may not be your area of expertise and it is always recommended to consult with a professional or expert in the field before attempting to implement a new mechanism. They can provide valuable insights and advice on the best solution for your specific project and ensure that it is safe and efficient.

Another potential solution could be to increase the size of your winch or use multiple winches to distribute the load and reduce the fleeting angle. This may require some adjustments to your frame design, but it could be a simpler and more effective solution.

Overall, I encourage you to continue exploring different options and seeking advice from experts in the field. With careful consideration and the right approach, I am sure you will find the best solution for your project. Best of luck to you and your team!