Design of 5000m wireline coring winch

Abstract:

In deep-hole geological core drilling, wireline core drilling technology has great advantages for improving drilling quality and production efficiency. In wireline core drilling, the winch is the main part of the geological drilling equipment. With the development, maturity and wide application of wireline coring technology over nearly half a century, the wireline winch system has become more safe and reliable. Through analysis of the advantages and disadvantages of the wireline coring winches at home and abroad, this paper proposes a design scheme for the 5000m rope coring winch, which adopts a split structure and consists of two parts: the AC inverter cabinet and the winch itself. The key technical parameters of the design of the 5000m wire coring winch are calculated with the results as: the total power of the winch 60kW, maximum lifting force of the matching 12mm steel wire rope 50kN, and the fastest lifting speed of the light hub 60m/min. Aiming at the work conditions such as overlapping, cross cutting, and biting of lines, which are common during the lifting process of the rope core winch, the double fold grooves are designed.