关键词: 摩擦提升绞车, 衬垫, 温升, 变热物理性质, 有限元方法

Abstract:

A Temperature rise analysis model was established considering the influence of viscoelastic on the liner heat physical properties, and analyzed by the finite element method. The influence degrees of sliding speed, liner friction coefficient, heat partition coefficients etc. were given. The temperature which changed greater in the initial stage than the last was proportionaal to sliding speed, liner friction coefficient and the pull on the light side. According to the relationship between the maximum sliding speed and the maximum sliding distance, the hoist protection system should be exerted just in time. Using the model proved by the experiments, the squirm temperature rise was analyzed detailedly, the results indicate that it is not the main reason for the liner performance degradation.

Key words: friction hoist, liner, temperature rise, variable heat physical property, finite element method