Analysis and research of traction friction calculation method

WEN Yao-ping

(Zhejiang Feiya Elevator co., LTD, Jinhua 321010, China）

Abstract: Aiming at the problem of the lack of traction friction calculation method in the process of the elevator design, a practical calculation method is put forward. At first, the force between traction wheel and wire rope were analyzed, a relationship between the tension on both sides of traction wheel and pressure on the wire rope groove was established; according to the specific pressure distribution in rope groove, the relationshop between the pressure and specific pressure was established; according to the relationship between friction and specific pressure with the coefficient of friction, a calculation formula of friction force to tractive was deduced by mechanics method. In the process of the design of the elevator, euler′s formula has always been used for traction calculation and checking, using the formula of friction force is a kind of new method, through calculation and check for instances, the friction calculation formula and the euler′s formula are the same in calculation results. The results indicate that you can check the tractive conditions by using the method of calculating friction, find unreasonableness in the process of elevator design and make up for the deficiency of euler′s formula

Key words: elevator; force of friction; computational formula; traction conditions; euler′s formula