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。

公开(公告)号：US08738329B2

公开(公告)日：2014-05-27

申请号：US13039538

申请日：2011-03-03

申请人： Chih-Hua Cho ,  Hsin-Chuan Su

发明人： Chih-Hua Cho ,  Hsin-Chuan Su

IPC分类号： G06F11/30

CPC分类号： G01L25/003

摘要： A calibration method/system and verification method for digital torque tools are disclosed, in which the calibration method comprises the steps of: transmitting a data containing usage records of a digital torque tool at a client end to a remote calibration platform; comparing the data of usage records with statistic data stored in the calibration platform so as to obtain a data relating to average degree of fatigue; performing a calculation based upon the data of usage record and the data of average degree of fatigue so as to obtain a calibration data; transmitting the calibration data to the client end while allowing the calibration data to overwrite the corresponding original torque data of the digital torque tool.

摘要翻译： 公开了一种用于数字扭矩工具的校准方法/系统和验证方法，其中校准方法包括以下步骤：在客户端将包含数字扭矩工具的使用记录的数据发送到远程校准平台; 将使用记录的数据与存储在校准平台中的统计数据进行比较，以获得与平均疲劳程度有关的数据; 基于使用记录的数据和平均疲劳度的数据进行计算，以获得校准数据; 将校准数据发送到客户端，同时允许校准数据覆盖数字扭矩工具的相应原始扭矩数据。

公开(公告)号：US20090126535A1

公开(公告)日：2009-05-21

申请号：US11968310

申请日：2008-01-02

申请人： Chih-Hua Cho ,  Hsin-Hung Li

发明人： Chih-Hua Cho ,  Hsin-Hung Li

IPC分类号： B25B17/00

CPC分类号： B25B21/00 ,  B25B23/1427

摘要： A power wrench includes a body, a connecting element, a drive motor and a protection circuit. The connecting element is axially rotatably disposed inside the body and protrudes out of the body. The drive motor is for rotating the connecting element. The protection circuit is for controlling a power supply of the drive motor according to a value of a drive current of the drive motor. When the drive current of the drive motor is over a critical current value, the power supply of the drive motor is cut off.

摘要翻译： 电动扳手包括主体，连接元件，驱动电机和保护电路。 连接元件轴向可旋转地设置在主体内部并突出到主体之外。 驱动电机用于旋转连接元件。 保护电路用于根据驱动电动机的驱动电流的值来控制驱动电动机的电源。 当驱动电机的驱动电流超过临界电流值时，驱动电机的电源被切断。