摘要
针对在电梯设计过程中缺乏曳引摩擦力计算方法这一问题进行研究,提出了一种实用的计算方法。该方法先对曳引轮和钢丝绳的受力情况作出分析,建立曳引轮两侧拉力与绳槽所受压力的关系式;根据比压在绳槽中的分布情况,建立压力与比压的关系式;再根据摩擦力与比压和摩擦系数的关系,用力学方法得出了曳引摩擦力的计算公式。一直以来在电梯的设计过程中都是采用欧拉公式进行曳引计算与校核,采用摩擦力计算公式是一种新的方法,该方法通过实例的计算校验证实,根据摩擦力计算公式得出的结果与欧拉公式得出的结果是一致的。研究结果表明,可以通过计算摩擦力的方法来验算曳引条件,并且还可以发现电梯设计过程中的不合理之处,弥补欧拉公式的不足之处。
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 calcula- tion 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
出处
《机电工程》
CAS
2014年第7期880-883,897,共5页
Journal of Mechanical & Electrical Engineering
关键词
电梯
摩擦力
计算公式
曳引条件
欧拉公式
elevator
force of friction
computational formula
traction conditions
euler＇s formula
