Method of strength calculations and determination of maximum equivalent stress in crownblock sheaves
DOI:
https://doi.org/10.15587/1729-4061.2015.37403Keywords:
tackle system, reeving, stress, string, groove, block, liningAbstract
In order to reduce the specific load in the branches of tackle system of drilling rig, it is necessary to increase the number of sheaves in the crown block and the tackle block, in the crown block there is always by one sheave more than in the tackle block. The drilling rig takes various loads, which are transmitted to the sheaves, where the load distribution occurs. The first sheave undergoes the greatest load, which is trying to “break down” the side wall of the sheave. This is caused by the fact that there is an angle between the sheave and winch, which is located away from the well center. This affects the metal production in the sheave groove. These features impact the enormous wear. Until the repair with the use of lining, repair was made through metal welding and boring for the nominal dimensions of the sheave groove. To solve this problem, in the drilling industry, it was decided to make such repairs as in the mining industry, where repair is performed with the use of lining. To determine the material for sheave lining, it was necessary to identify forces, stress and loads, arising in the tackle system at a given load. The results obtained indicate that the given sheaves are subjected to lining without geometric deformation and fracture of metal.
References
- Dihtjarenko, K. V., Chervinskij, V. P., Pupyshev, A. I. (2012). On the question of increasing the lifetime kronblochnyh pulley rigs. Eastern-European Journal of Enterprise Technologies, 1/7( 55), 20–22. Available at: http://journals.uran.ua/eejet/article/view/3409/3209
- Stepanova, E. M. (2010). The effective use of modern liners for pulleys winders mines of Ukraine. Gljukaus, 2, 70–71.
- Bagramov, R. A. (1988). Drilling machines and systems. Moscow: Nedra, 501.
- Lee, H.-H. (2005). Motion planning for three-dimensional overhead cranes with high-speed load hoisting. International Journal of Control, 78 (12), 875–886. doi:10.1080/00207170500197571
- Aleksandrov, M. P., Kolobov, L. N., Lobov, N. A. (1986). Lifting machines: a textbook for high schools in "Handling machinery and equipment". Moscow: Mechanical Engineering, 400.
- Vajnson, A. A. (1989). Handling machinery. Moscow: Mechanical Engineering, 536.
- Pisarenko, G. S., Jakovlev, A. P., Matveev, V. V. (1988). Handbook of resistance materialov. Kiev: Nauk. Dumka, 736.
- Sorokin, V. G. (1989). Database of steels and alloys. Moscow: Mechanical Engineering, 640.
- Il'skij, A. L., Kas'janov, V. M., Poroshin, V. G. (1967). Drilling machines, mechanisms and structures. Moscow, Nedra, 469.
- Uniform safety standards for the development of the main types of oil and gas equipment (1982). RD 39-22-617-81, MNP.
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Copyright (c) 2015 Константин Викторович Дихтяренко, Владимир Петрович Червинский, Андрей Игоревич Пупышев
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