What different types of rope reeving systems are used for lifting equipment?
A rope reeving is a mechanical device with several pulleys commonly used on lifting equipment. It allows to lift heavy loads while limiting the force applied on the hoisting ropes.
There are many different types of rope reeving. For each one, there are one or more optimal locations to mount the force sensor (s) (loadcell on the cable, load pin, tension or compression sensor, wedge socket) which will allow the limitation of hoisted load. The choice of the type of sensor and its location will be based according to criteria such as the required accuracy, the possibility of loss of lifting height, the cost of equipment and assembly, etc ...)
Some of the most common examples are shown below (non-exhaustive list).
indicate where to mount the force sensors.