Recent content by ikeatwork

  1. I

    How to stop a weight from falling

    To those that are interested, I wasn't able to get photos of the rig. The current plan is to attach a steel cable to two parts of the moving rig which goes over the top of the static steel framework and attaches to the lowest part of the rig frame work via chain linkage on the end of the steel...
  2. I

    How to stop a weight from falling

    Because the testing we do has a confidentiality clause too it when it comes to our certification for said testing I will see if I can get some photos of the rig to show you guys what I am dealing with. I think that is the best way forward, our current safety device is not fit for what it does at...
  3. I

    How to stop a weight from falling

    Ah, well back to the drawing board. Where would I find a self locking cam from?
  4. I

    How to stop a weight from falling

    Thank you for all your help on this matter. After weeks of going through the different options I have narrowed down the final design something akin to Terrysv's two ideas with the wedges, the one with the bracket surrounding it and the one with the slots cut out. I have found the process of...
  5. I

    How to stop a weight from falling

    As i have said before, not working under the load is not an option. In the job that it is used for the rising part of the rig is used to raise an lower items used to perform the tests which need to be done. I just need to make it as safe as possible for the person or persons in the position of...
  6. I

    How to stop a weight from falling

    The rig can be raised over 3m, there is a hole every 100mm. See above. Not possible due to the nature of the work. What would you suggest? I am looking into the wedge system described in Terrysv's post. I am attempting to work out the formulae in jack actions posts. I have thought of...
  7. I

    How to stop a weight from falling

    The ram is not part of the lifting mechanism at all, that is all done by electric pulley. It's a safety procedure for regular use of the device the ram is used to apply loads on a vertical surface and quite regularly needs to be raised above head height and it is not uncommon for people to have...
  8. I

    What are the benefits of incorporating physics into mechanical security testing?

    Hi there, New member here, joined as I have a question concerning my work place. I do mechanical security testing as a profession and I enjoy physics. ike
  9. I

    How to stop a weight from falling

    Hello, new member here so first post, I apologize for any unintentional faux pas. Anyway... I have a problem which I have been asked to sort out in my work place. We have a rig which is used to move a pneumatic ram up and down. Currently it is on an electrical winch system and I have been...
Back
Top