公开(公告)号：EP2766572A2

公开(公告)日：2014-08-20

申请号：EP12778273.8

申请日：2012-10-11

申请人： Betek GmbH & Co. KG ,  Wirtgen GmbH

发明人： ALLGAIER, Thomas ,  LEHNERT, Thomas ,  ROTH, Markus

IPC分类号： E21C35/197 ,  E01C23/088

CPC分类号： E21C35/197 ,  E21C35/18 ,  E21C35/19

摘要： The invention relates to a tool holder for a road milling machine or similar, comprising a base part, on which a tool shank and a collar are formed, the collar having a tool receiving opening and said opening being formed from a bush-type insert consisting of a hard material. In a tool holder of this type, in order to promote good rotational behaviour of the tool and guarantee support for the latter without the need for numerous parts, the tool receiving opening is designed as a stepped bore that has a first and a second diameter region, the first diameter region having a greater inner diameter than the second diameter region.

公开(公告)号：EP3332092A1

公开(公告)日：2018-06-13

申请号：EP16736880.2

申请日：2016-07-11

申请人： Betek GmbH & Co. KG ,  Wirtgen GmbH

发明人： ALLGAIER, Thomas ,  KRÄMER, Ulrich ,  HÄHN, Günter ,  LEHNERT, Thomas ,  BUHR, Karsten ,  BARIMANI, Cyrus ,  FRIEDERICHS, Heiko

IPC分类号： E21C35/183 ,  E21C35/193 ,  E21C35/18

CPC分类号： E21C35/183 ,  E21C35/1933 ,  E21C2035/1806 ,  E21C2035/1809 ,  E21C2035/1816

摘要： The invention relates to a cutting device for a soil cultivation machine with an improved wear protection.

公开(公告)号：EP3250788A1

公开(公告)日：2017-12-06

申请号：EP16701457.0

申请日：2016-01-22

申请人： Betek GmbH & Co. KG

发明人： KRÄMER, Ulrich ,  FRIEDERICHS, Heiko ,  HABERSTROH, Christoph ,  ALLGAIER, Thomas

IPC分类号： E21C35/183 ,  E01C23/08 ,  E21B10/46

CPC分类号： E21C35/183 ,  E21B10/46 ,  E21C35/19 ,  E21C35/197 ,  E21C2035/1806 ,  E21C2035/1813

摘要： The invention relates to a pick, in particular a round-shank pick, comprising a pick head and a pick shank, wherein the pick head consists of at least a base part and a cutting element, which is connected to the base part and is composed of a hard material, in particular hard metal, wherein the base part has a wear-resistant layer on the outer surface thereof at the connection to the cutting element, which wear-resistant layer covers at least one segment of the outer surface of the base part facing the cutting element and wherein an end face of the wear-resistant layer facing the cutting element is covered by the cutting element. According to the invention, the base part has an axially oriented cut-out for receiving a fastening segment of the cutting element, the base part has a counter surface facing the cutting element and extending around the cut-out, and the counter surface and the end face of the wear-resistant layer form a continuous flat surface. The invention further relates to two methods for producing such a pick. The pick formed in such a way has low abrasive wear.

公开(公告)号：EP2766571A2

公开(公告)日：2014-08-20

申请号：EP12780128.0

申请日：2012-10-11

申请人： Betek GmbH & Co. KG ,  Wirtgen GmbH

发明人： ALLGAIER, Thomas ,  LEHNERT, Thomas ,  ROTH, Markus

IPC分类号： E21C35/183

CPC分类号： E21C35/197 ,  E21C35/18 ,  E21C35/19

摘要： The invention relates to a tool system comprising a tool holder and a shank tool, the tool holder having a tool receiving opening with a first and a second diameter region which lead into one another via a transition section (narrowing) and a tool shank of the shank tool has a first and a second cross-sectional region which lead into one another via a transition section. To achieve a design for a tool system of this type that is optimised in terms of wear, the transition sections of the shank tool and the tool holder are interspaced in the direction of the central longitudinal axis of the shank tool to form a repositioning area.

摘要翻译： 本发明涉及一种工具系统，该工具系统包括一个工具架和一个柄工具，该工具架具有一个工具接纳开口，该工具接纳开口具有第一和第二直径区域，该第一和第二直径区域通过一个过渡区段（变窄） 柄工具具有第一和第二横截面区域，该第一和第二横截面区域经由过渡区段相互通向彼此。 为了实现在磨损方面优化的这种类型的工具系统的设计，柄部工具和工具保持器的过渡部分在柄部工具的中心纵向轴线的方向上间隔开以形成重新定位区域。

公开(公告)号：EP2766570A2

公开(公告)日：2014-08-20

申请号：EP12778275.3

申请日：2012-10-11

申请人： Betek GmbH & Co. KG ,  Wirtgen GmbH

发明人： ROTH, Markus ,  ALLGAIER, Thomas ,  LEHNERT, Thomas

IPC分类号： E21C35/18 ,  E21C35/197 ,  E01C23/088

CPC分类号： B28D1/186 ,  E21C35/18 ,  E21C35/197

摘要： The invention relates to a shank-type pick for a road milling machine or the like, having a pick head and a pick shank, wherein the pick shank has a first cylindrical section which indirectly or directly adjoins the pick head, and wherein the pick shank has a second cylindrical section which is remote from the pick head and indirectly or directly adjoins the first cylindrical section, and wherein the diameter of the second cylindrical section differs from the diameter of the first cylindrical section. With such a shank-type pick, improved use properties arise in that the first cylindrical section has a diameter in the range between 18 mm and 30 mm and an extent in the direction of the centre longitudinal axis of the pick shank of less than 30 mm.

公开(公告)号：EP3250788B1

公开(公告)日：2019-10-16

申请号：EP16701457.0

申请日：2016-01-22

申请人： Betek GmbH & Co. KG

发明人： KRÄMER, Ulrich ,  FRIEDERICHS, Heiko ,  HABERSTROH, Christoph ,  ALLGAIER, Thomas

IPC分类号： E21C35/183 ,  E01C23/08 ,  E21B10/46

公开(公告)号：EP2766573A2

公开(公告)日：2014-08-20

申请号：EP12778274.6

申请日：2012-10-11

申请人： Betek GmbH & Co. KG ,  Wirtgen GmbH

发明人： ALLGAIER, Thomas ,  LEHNERT, Thomas ,  ROTH, Markus

IPC分类号： E21C35/197 ,  B28D1/18

CPC分类号： B28D1/188 ,  E21C35/197

摘要： The invention relates to a securing element for a shank tool, said element at least partially surrounding a mounting opening by means of an elastic clamping part. Securing elements of this type offer a secure clamping action and at the same time an excellent rotational mounting for the shank tool if fixing sections are directly or indirectly attached to the outer radius of the clamping part, said sections being interspaced in the circumferential direction.