公开(公告)号：US08096211B2

公开(公告)日：2012-01-17

申请号：US12100006

申请日：2008-04-09

申请人： Chih-Hua Cho ,  Wei-Min Chen ,  Wan-Lung Lee ,  Hsin-Hung Lee

发明人： Chih-Hua Cho ,  Wei-Min Chen ,  Wan-Lung Lee ,  Hsin-Hung Lee

IPC分类号： B25B13/46

CPC分类号： B25B21/004 ,  B25B23/1425

摘要： The present invention relates to a digital power torque wrench of indirect transmission, which is composed of an eccentric driving module, a sensing module, a ratchet module and a control module. The eccentric driving module is used for transmitting power to the sensing module and the ratchet module for driving the ratchet module rotate accordingly and thus transferring the momentum of the rotating to fasten a workpiece, such as a bolt or nut. The sensing module is capable of detecting the deformation of the ratchet module as it is rotating against an increasing resistance during the fastening process, and converting the detected deformation into a signal to be received by the control module. The control module is capable of quantifying the signal for converting the same into a numerical signal representing a torque detected by the sensing module and then sending the numerical signal to a display device for displaying. With the aforesaid digital power torque wrench of indirect transmission, not only the detection can be achieved in a rapid manner without being troubled by wear-and-tear and noise, but also it is ease to maintain and can be manufactured with comparatively less cost.

摘要翻译： 本发明涉及一种由偏心驱动模块，感测模块，棘轮模块和控制模块组成的间接传动的数字动力扭矩扳手。 偏心驱动模块用于向感测模块传输动力，用于驱动棘轮模块的棘轮模块相应地旋转，从而传递旋转的动量以紧固诸如螺栓或螺母的工件。 感测模块​​能够在紧固过程期间检测棘轮模块的旋转抵抗增加的阻力的变形，并将检测到的变形转换成要由控制模块接收的信号。 控制模块能够将将其转换成表示由感测模块检测到的转矩的数字信号的信号进行量化，然后将数字信号发送到显示装置进行显示。 利用前述的间接传动的数字式扭矩扳手，不仅可以快速地实现检测，而且不会受到磨损和噪音的困扰，而且易于维护，并且可以以相对较低的成本制造。