公开(公告)号：EP2875885A1

公开(公告)日：2015-05-27

申请号：EP12881500.8

申请日：2012-07-17

申请人： Weihai Dawang Hardware Products Limited

发明人： LIU, Yaoting ,  YU, Zuozi

IPC分类号： B23B31/11 ,  B23B31/165

CPC分类号： B23B31/16083 ,  B23B31/1207 ,  B23B31/1215 ,  B23B2231/24 ,  B23B2260/07 ,  B23B2260/106 ,  Y10T279/17666

摘要： The present invention provides a new drill chuck that resolves the problem that the excessive clamping force of the existing drill chuck makes it inconvenient to open the drill chuck and easily damages the cutters. The new drill chuck comprises a front-body, an after-body, and clamping jaws, wherein a thread is provided on the clamping jaw, the after-body is provided with master gears, slave gears are provided between the clamping jaws and the after-body, the master gear fits with the slave gear, a thread is provided inside the slave gear, and the thread of the slave gear fits with the thread of the clamping jaw.

摘要翻译： 本发明提供了一种新的钻夹头，其解决了现有钻夹头的过度夹紧力使打开钻夹头并且容易损坏切割器的问题。 新的钻夹头包括前体，后身和夹爪，其中在夹爪上设有螺纹，后身上设有主齿轮，从动齿轮设置在夹爪和后夹 主齿轮配合从齿轮，从动齿轮内设有螺纹，从齿轮的螺纹与夹钳的螺纹配合。