公开(公告)号：WO2009131868A3

公开(公告)日：2010-01-21

申请号：PCT/US2009040432

申请日：2009-04-14

Applicant: KENNAMETAL INC ,  RITCHEY CARY D ,  BEACH WAYNE H

Inventor： RITCHEY CARY D ,  BEACH WAYNE H

IPC: B23B29/00 ,  B23B29/04 ,  B23B29/24

CPC classification number: E21C35/1936 ,  B28D1/188

Abstract: A system for excavating and/or trenching hard and soft ground material includes a support block having a bore with a cylindrical portion and a non-cylindrical portion with flat surfaces and a cutting tool mounted in the bore, which may be a non- rotatable cutting tool having a shank with flat surfaces or a rotatable cutting tool having a shank with a cylindrical portion. The non-cylindrical portion of the bore rotatably engages the cylindrical portion of the rotatable cutting tool and the flat surfaces of the bore engage the flat surfaces of the non-rotatable cutting tool. A further embodiment includes a support block having a bore with flat surfaces along the entire length of the bore that engage the flat surfaces of the shank of the non-rotatable cutting tool and which bore receives the cylindrical portion of the shank of the rotatable cutting tool but does not restrain rotation thereof. In yet another embodiment, the support block may have two non-cylindrical portions and a single cylindrical portion, while the cutting tool may have a shank with two non-cylindrical portions and a single cylindrical portion corresponding to those within the bore of the support block.

Abstract translation: 用于挖掘和/或开挖硬质和软质研磨材料的系统包括具有圆柱形部分的孔和具有平坦表面的非圆柱形部分和安装在孔中的切割工具的支撑块，其可以是不可旋转切割 具有平坦表面的柄的工具或具有带有圆柱形部分的柄的可旋转切割工具。 孔的非圆柱形部分可旋转地接合可旋转切削工具的圆柱形部分，孔的平坦表面与非旋转切割工具的平坦表面接合。 另一个实施例包括支撑块，其具有沿着孔的整个长度具有平坦表面的孔，该孔与非旋转切削工具的柄的平坦表面接合，并且该孔容纳可旋转切割工具的柄的圆柱形部分 但不限制其旋转。 在另一个实施例中，支撑块可以具有两个非圆柱形部分和单个圆柱形部分，而切割工具可以具有带有两个非圆柱形部分的柄和对应于支撑块的孔内的单个圆柱形部分 。

公开(公告)号：WO2006115797A2

公开(公告)日：2006-11-02

申请号：PCT/US2006013766

申请日：2006-04-13

Applicant: KENNAMETAL INC ,  RITCHEY CARY D

Inventor： RITCHEY CARY D

IPC: E21C25/10

CPC classification number: E21C35/197 ,  E02F9/2866

Abstract: A retainer (16) for use in conjunction with a cutting bit (12) wherein the cutting bit includes a shank (18) that contains a recess (20) therein. The retainer (16) includes a generally cylindrical retainer body (30) that has opposite ends (34, 36) and a central longitudinal axis (L-L). The retainer body has a generally arcuate shape that defines an arc between the opposite ends thereof. The retainer body further includes at least one ear (40) that projects in a radial outward direction. The retainer body is made from a material that has a grain direction wherein the direction of the grain runs generally parallel to the central longitudinal axis (L-L) of the retainer body (30).

Abstract translation: 一种用于与切割钻头（12）结合使用的保持器（16），其中所述切割钻头包括其中包含凹部（20）的柄部（18）。 保持器（16）包括具有相对端（34,36）和中心纵向轴线（L-L）的大致圆柱形的保持器本体（30）。 保持器主体具有在其相对端之间限定弧的大致弓形形状。 保持器主体还包括沿径向向外的方向突出的至少一个耳朵（40）。 保持器主体由具有颗粒方向的材料制成，其中颗粒的方向大致平行于保持器主体（30）的中心纵向轴线（L-L）。