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1. 发明申请

WO2005115665A1 HYDRAULIC CHUCKS 审中-公开
标题翻译：液压葫芦
公开(公告)号：WO2005115665A1
公开(公告)日：2005-12-08
申请号：PCT/GB2005/001992
申请日：2005-05-23
申请人： WESTWIND AIR BEARINGS LTD , PRATT, Jeff , GOODWIN, Dave , BRADLEY, John
发明人： PRATT, Jeff , GOODWIN, Dave , BRADLEY, John
IPC分类号： B23B31/30
CPC分类号： B23B31/305 , B23B31/14
摘要： A chuck comprising a main body (1) defining a hydraulic fluid receiving enclosure (6) and comprising a tool receiving portion (4) with at least one deformable wall portion (41), the hydraulic fluid receiving enclosure and tool receiving portion being arranged so that pressure applied to fluid in the enclosure can cause deformation of the deformable wall portion for gripping an inserted tool, the chuck further comprising a moveable piston (8) which is disposed partly within the hydraulic fluid receiving enclosure and which is moveable between a first and a second position wherein the volume displaced within the enclosure by the moveable member when the piston (8) is in the first position is less than the volume displaced within the enclosure by the moveable piston when the piston is in the second position; and a centrifugal pressure intensifier (9) for increasing the pressure in carried hydraulic fluid in dependence on the speed of rotation of the chuck, said centrifugal pressure intensifier being arranged to act on the moveable piston, the moveable piston comprising a taper portion (85) and the centrifugal pressure intensifier comprising jaws (92) having a complementary taper. The jaws (92) are arranged to be driven outwards by centrifugal effects and further arranged, when so driven outwards, to interact with the moveable piston (8) taper portion (85) to drive the moveable piston in a direction which serves to increase the volume displaced within the enclosure (6) by the moveable piston (8).
摘要翻译：一种卡盘，包括限定液压流体接收外壳（6）并包括具有至少一个可变形壁部分（41）的工具接收部分（4）的主体（1），所述液压流体接收外壳和工具接收部分被布置成施加到外壳中的流体的压力可导致可变形壁部分的变形以夹持插入的工具，卡盘还包括可移动活塞（8），其可部分地设置在液压流体接收外壳内，并且其可在第一和第二位置，其中当所述活塞（8）处于所述第一位置时由所述可移动构件在所述外壳内移位的容积小于当所述活塞处于所述第二位置时由所述可移动活塞在所述外壳内移位的容积; 和离心式增压器（9），用于根据卡盘的旋转速度增加承载的液压流体中的压力，所述离心式增压器布置成作用在可动活塞上，该可动活塞包括锥形部分（85）以及包括具有互补锥度的夹爪（92）的离心增压器。夹爪（92）被布置成通过离心效应被向外驱动，并且当被向外驱动时进一步布置成与可移动活塞（8）锥形部分（85）相互作用以沿可用于增加通过可移动活塞（8）在外壳（6）内移动的容积。

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