The entire hoisting installation comprising draw-works, drum, and brakes is shown schematically in Figure 2. Factors to be considered when a hoisting system is designed or chosen are: 1. The maximum required hoisting load. 2. The maximum speed at which we can pull the loads. 3. The strength of the line.. .
Figures 3 & 4 are pictures of a draw-works with an auxiliary electro-dynamic brake. The drive can be either diesel mechanical or diesel electrical. Shafts with sprockets and chains provide. .
The drum is an essential part of a hoisting system. The size depends on the height of the derrick or mast. Its surface should be grooved so that. .
The sheaves in drilling rigs have a large diameter, often 1.5m (60″) or more, to reduce fatigue in wire ropes and increase the endurance of the. .
We can divide the drawworks brake systeminto: 1. Main brakes; these are the mechanical brakes on the drum flanges or a. [pdf]
[FAQS about How to hoist accessories for down-the-hole drilling rigs]
Enter your inquiry details, We will reply you in 24 hours.
