Through establishing three mathematics models including the movement equation of the mechanical and electrical transmission system , the control of the load and the sliding in stable status , direct - current - brake of ac motor , this paper ascertained the range of the frequency value of drive motor and the efficiency of transmission system , calculated the efficiency of load motor in stable status and the moment of load motor in braking . this paper completed the design of the mechanical part of inertia brake test platform and provides a tool for the measurement of the inertia brake parameters 本文还通过建立惯性制动器试验台的包括机电传动系统的运动方程、稳态运行时负载与转差率控制、交流电动机直流制动在内的三个数学模型,确定驱动电机的频率取值范围和传动系统的传动效率,验算惯性制动器稳态运行时负载电机轴功率和惯性制动器制动时负载电机轴力矩,完成惯性制动器试验台设计中的机械部分,为惯性制动器各参数的测量提供工具。
The problem of torque increase and drill fracture during the process of deep well drilling was analyzed , and a safety protection and control technique was introduced , where a torque sensor was fixed between drilling bar and motor axis , while an electromagnetic clutch was fixed in the transmission chain of feed system 摘要对深孔钻削过程中出现扭矩增大及折断钻头钻杆问题进行了分析，介绍了一种钻杆主轴与电机轴的连接中安装扭矩传感器，进给系统的传动链中安装电磁离合器的深孔钻削安全保护与控制技术。
For the 30 . 2mm shaft , there are still larger over measure to load . the strength is increased by optimization . for ? 17 . 4mm shaft , the strength is increased by enlarge the inner dimension of the spline ; for 30 . 2mm shaft , the strength is increased by adjust the structure at the boundary between the key groove and the ring groove , the highest stress of the shaft is at bottom and terminal of the spline after optimization 其中对17 . 4mm泵轴的优化，通过增大花键内径，提高了花键齿底的强度，降低了应力集中点附近的应力；对30 . 2mm电机轴的优化，通过在轴承键的环槽端增加倒角，有效降低了该位置的应力集中，使轴的最大应力点从轴承键与环槽的交界处转变到花键根部与收尾的交界处，提高了电机轴整体结构强度的合理性。
