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21. 发明授权

US06336502B1 Slow rotating tool with gear reducer 有权
标题翻译：带齿轮减速器的慢速旋转工具
公开(公告)号：US06336502B1
公开(公告)日：2002-01-08
申请号：US09370692
申请日：1999-08-09
申请人： Jim B. Surjaatmadja , James C. Tucker
发明人： Jim B. Surjaatmadja , James C. Tucker
IPC分类号： F01C110
CPC分类号： F16H1/32 , E21B4/006 , F16H2001/326
摘要： A slow rotating apparatus for use in performing downhole operations. The apparatus generally consists of a motor section with a rotor rotatable in response to fluid flow, a speed reducer section connected to the motor section such that an output speed of the speed reducer section is less than an output speed of the rotor, and a jetting section or other head attached to the speed reducer section and rotated thereby at the speed reducer output speed. A flow passage is defined through the speed reducer section so that fluid may communicate therefrom into the jetting head. The speed reducer section includes an input shaft attached to the rotor. The input shaft has an eccentric portion and has an input gear disposed about the eccentric portion. The input gear is a solid gear having a first outer geared surface and a second outer geared surface. The pitch diameter of the first outer geared surface is less than the pitch diameter of the second outer geared surface. A speed reducer body has a geared inner surface defined thereon in geared engagement with the first outer geared surface. A follower gear is disposed in the body and is in geared engagement with the second outer geared surface. Rotation of the input shaft causes the eccentric portion thereof to rotate in the input gear causing eccentric rotation of the input gear. Eccentric rotation of the input gear is translated into pure rotation by the follower gear which rotates the output shaft.
摘要翻译：用于执行井下作业的慢速旋转装置。该装置通常包括具有可响应于流体流动旋转的转子的马达部分，连接到马达部分的减速器部分，使得减速器部分的输出速度小于转子的输出速度，并且喷射部分或其他头部连接到减速器部分，并以减速器输出速度旋转。通过减速器部分限定流动通道，使得流体可以从其进入喷射头。减速器部分包括附接到转子的输入轴。输入轴具有偏心部分，并且具有绕偏心部分设置的输入齿轮。输入齿轮是具有第一外齿轮表面和第二外齿轮表面的实心齿轮。第一外齿轮表面的节圆直径小于第二外齿轮表面的节圆直径。减速机主体具有限定在其上的齿轮传动的内表面，其与第一外齿轮表面配合啮合。从动齿轮设置在主体中并与第二外齿轮表面啮合。输入轴的旋转使其偏心部分在输入齿轮中旋转，从而引起输入齿轮的偏心旋转。通过使输出轴旋转的从动齿轮将输入齿轮的偏心转动转换为纯旋转。

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