摘要
锥形无键联轴器轮毂设计通常采用过盈装配,普遍用于高速、传递扭矩大的机组,其主要作用是通过过盈配合的摩擦力来防止联轴器轮毂在轴头发生轴向或径向移动,保证机组平稳运行。运行后的机组,其无键联轴器轮毂和轴头的摩擦力会增大,从而造成轮毂拆装难度增大,如果轮毂拆装过程中出现故障,将直接影响整个机组甚至装置的平稳运行。这项拆装技术一般仅为厂家现场服务人员所掌握,如遇到需要拆装轮毂的情况,现场检维修人员较难解决。文章介绍了典型的BB5型高压离心泵在检修过程中拆装联轴器轮毂的工艺要点和难点,具体阐述了利用手持高压油泵和低压油泵并结合现场实践顺利拆装无键联轴器轮毂的技术要点及注意事项,可为同类型机组的检维修工作提供参考和借鉴。
Tapered keyless coupling hubs are designed for interference assembly,which is generally applicable to large rotating equipment with high speed and high transmission torque.The main function of interference fit is to prevent the occurrence of axial or radial movement of the coupling at the shaft head through friction,ensuring smooth operation of the machinery.After operation of the unit,the friction between its keyless coupling hub and the shaft head will increase,which will result in the increased difficulty of hub disassembly and installation.If there is a failure during hub disassemblyand installation,it will directly affect the smooth operation of the whole unit or even the device.This disassembly and installation technology is generally mastered only by the manufacturer's field service personnel.If there is a need to disassemble and install the hub,it is difficult for on-site inspection and maintenance personnel to solve the problem.This paper introduces the process points and difficulties of disassembling and installing the coupling hub of a typical BB5 high-pressure centrifugal pump in the overhaul process,and specifically describes the technical points and precautions for disassembling and installing the keyless coupling hub by using the hand-held high-pressure oil pumps and low-pressure oil pumps and combining with the on-site practice,which can provide reference and useful experience for the inspection and maintenance of the same type of tapered keyless coupling hubs.
作者
高自林
Gao Zilin(SINOPEC Engineering Incorporation,Beijing,100101)
出处
《石油化工设备技术》
CAS
2024年第5期19-22,27,I0001,I0002,共7页
Petrochemical Equipment Technology
关键词
转动设备
无键联轴器
拆装技术
rotating equipment
keyless coupling hub
disassembly andinstallationtechnology
