论文部分内容阅读
离心式钢球联轴器在国外已有20多年的历史,在我国应用尚少。它主要用来解决满载起动问题,较适用于起重运输机械以及其它需带载起动的机械。例如皮带运输机在使用中,由于某种原因满载停车,当再次起动时,就需要卸掉部分载荷,很费时费工。又如起重机械的运行机构,运行惯性阻力矩较大,因此一般采用绕线式交流电机,并配有起动电阻箱,使设备复杂,成本较高,易出故障。如采用鼠笼式交流电机,配上离心式钢球联轴器,则既经济又可靠,并具有起动平稳与过载保护的作用。其中离心式钢球联轴器是个关键部件,我们对这种联轴器作了初步的试验研究。
Centrifugal ball couplings in foreign countries have been more than 20 years of history, the application is still less in our country. It is mainly used to solve the problem of full load starting, more suitable for lifting transport machinery and other machinery with belt load to start. For example, when the belt conveyor is in use and is fully loaded for some reason, part of the load needs to be removed when it is started again, which takes time and labor. Another example is the crane operating mechanism, operating inertia resistance torque larger, so the general use of wound AC motor, and with a starter resistance box, the equipment complex, high cost, easy to fail. Such as the use of squirrel-cage AC motors, coupled with centrifugal steel ball coupling, it is both economical and reliable, and has a smooth start and overload protection role. Among them, the centrifugal steel ball coupling is a key component, and we made a preliminary experimental study on the coupling.