公开(公告)号：US20090108541A1

公开(公告)日：2009-04-30

申请号：US12318129

申请日：2008-12-22

申请人： M. Brad Beardsley ,  David E. Bowman ,  Mark S. Diekevers ,  Karen R. Raab ,  William C. Smith ,  D. Trent Weaver

发明人： M. Brad Beardsley ,  David E. Bowman ,  Mark S. Diekevers ,  Karen R. Raab ,  William C. Smith ,  D. Trent Weaver

IPC分类号： F16J15/16 ,  F16J15/34 ,  B62D55/205

CPC分类号： F16J15/344 ,  F16C33/74

摘要： A bushing includes an interior surface, an exterior surface, a first end, and a second end. An end face forms at least part of each of the first end and the second end. At least one of the exterior surface and the end face includes a sealing surface formed at least in part of a coating including a material having a hardness level greater than about 1200 Knoop. The sealing surface has a thickness greater than about 35 microns and an average roughness (Ra) less than about 0.25 micron. In one embodiment, the bushing may be used on an endless track for a track-type work machine.

摘要翻译： 衬套包括内表面，外表面，第一端和第二端。 端面形成第一端和第二端中的每一个的至少一部分。 外表面和端面中的至少一个包括形成至少部分涂层的密封表面，所述涂层包括硬度水平大于约1200Noop的材料。 密封表面的厚度大于约35微米，平均粗糙度（Ra）小于约0.25微米。 在一个实施例中，衬套可用于轨道式作业机械的环形履带。

公开(公告)号：US5759309A

公开(公告)日：1998-06-02

申请号：US704202

申请日：1996-08-28

申请人： Kenneth R. Watts ,  Gary L. Biltgen ,  David E. Bowman ,  Charles F. Berndt

发明人： Kenneth R. Watts ,  Gary L. Biltgen ,  David E. Bowman ,  Charles F. Berndt

IPC分类号： B21L7/00 ,  C21D1/18 ,  C21D1/667 ,  C21D9/00 ,  C21D1/06

CPC分类号： C21D1/02 ,  C21D1/667 ,  C21D9/0087 ,  C21D2211/008

摘要： A process for selectively hardening a forged track chain link has the following steps. A forged track chain link having a pad portion, a rail portion, a first side portion and a second side portion, is provided. A quench tank is provided and adapted for spraying one or more of the track chain link portions with a quenchant at a controlled amount of quenchant flow rates, quenchant pressures and quench times. One or more of the track chain link portions are sprayed with the quenchant at a controlled amount of one or more of a plurality of quenchant flow rates, a plurality of quenchant pressures and a plurality of quench times. The pad and rail portions are simultaneously hardened to predetermined respective hardnesses.

摘要翻译： 用于选择性地硬化锻造轨道链节的过程具有以下步骤。 提供具有焊盘部分，轨道部分，第一侧部分和第二侧部分的锻造轨道链节链。 提供了一个淬火罐，适用于以一定量的淬火流速，淬火压力和淬火时间，用一个淬火剂喷射一个或多个履带链节段。 一个或多个轨道链节部分以淬火剂以受控量的多个淬火流速，多个淬火压力和多个淬火时间中的一种或多种喷射。 垫和轨道部分同时硬化到预定的相应硬度。

公开(公告)号：US4848013A

公开(公告)日：1989-07-18

申请号：US261853

申请日：1988-10-24

申请人： David E. Bowman ,  Mark S. Diekevers ,  William J. Renski

发明人： David E. Bowman ,  Mark S. Diekevers ,  William J. Renski

IPC分类号： E02F9/28

CPC分类号： E02F9/2833 ,  E02F9/2841 ,  Y10T403/453 ,  Y10T403/7088

摘要： In ground engaging tools, reliable fastening devices are needed to quickly and effectively secure replaceable earth working tips to adapters. The fastening pin assembly should be configured in such a way as to prevent pin loss or breakage which causes the tip to be lost and/or the adapter damaged. This invention consists of two pins and an interconnecting and retaining means. When assembled, each pin will extend approximately to the middle portion of the adapter through axially aligned bores defined in both the tip and adapter. The interconnecting and retaining means is located in the middle portion of the adapter between the two pins and retains the pins in the adapter bore. This invention protects against pin loss/and or breakage and is beneficial to all type of earth working replaceable tip applications.

摘要翻译： 在地面接合工具中，需要可靠的紧固装置来快速有效地将可更换的地面工作尖端固定到适配器上。 紧固销组件应该被配置成防止引脚损失或断裂，这导致尖端丢失和/或适配器损坏。 本发明由两个引脚和互连和保持装置组成。 当组装时，每个销将通过在尖端和适配器中限定的轴向对准的孔大致延伸到适配器的中间部分。 互连和保持装置位于适配器的两个销之间的中间部分，并将销保持在适配器孔中。 本发明可防止销的损失和/或破损，并且有益于所有类型的地球工作可更换的尖端应用。