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公开(公告)号：EP3280877A1
公开(公告)日：2018-02-14
申请号：EP16777500.6
申请日：2016-04-11
CPC分类号： E21C35/197 , E21C25/10 , E21C35/18 , E21C2035/1826
摘要： A bit assembly for a cutting drum includes a sleeve and a bit. The sleeve includes shank portion, a flange positioned, and a bore extending through the flange and the shank portion. The flange includes a first end surface, a second end surface, and a sleeve outer surface extending between the first end surface and the second end surface. A portion of the sleeve outer surface positioned adjacent the first end surface defines a sleeve profile. The bit includes a cutting end, a shank, and a shoulder positioned between the cutting end and the shank. The shank is positioned within the bore, and the shoulder is positioned adjacent the first end surface of the sleeve. A bit outer surface extending between the cutting end and the shoulder. A portion of the bit outer surface positioned adjacent the shoulder defines a bit profile that corresponds to the sleeve profile.
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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
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.
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公开(公告)号：EP2890870B1
公开(公告)日：2017-05-31
申请号：EP13753644.7
申请日：2013-08-29
IPC分类号： E21C35/193
CPC分类号： E21C35/1933 , E21C35/183 , E21C35/19 , E21C35/197 , E21C2035/1806 , E21C2035/191
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公开(公告)号：EP2011961B1
公开(公告)日：2017-05-31
申请号：EP08007080.8
申请日：2008-04-10
申请人： Wirtgen GmbH
IPC分类号： E21C35/197
CPC分类号： E21C35/19 , B23P19/025 , B25B27/02 , B25B27/064 , E21C35/197 , E21C2035/1826 , Y10T29/4973 , Y10T29/49945 , Y10T29/53683 , Y10T29/53796 , Y10T29/5383 , Y10T29/53909
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55.发明授权TIP FOR A PICK TOOL, METHOD OF MAKING SAME AND PICK TOOL COMPRISING SAME 有权提示有关的常用工具，工艺用于生产和CROSS工具
公开(公告)号：EP2773839B1
公开(公告)日：2017-04-12
申请号：EP12787403.0
申请日：2012-10-26
IPC分类号： B22F7/06 , E21C35/197 , E21B10/567 , E21C35/18
CPC分类号： E21C35/197 , B22F7/06 , C22C1/00 , E21B10/567 , E21B10/5735 , E21C35/183 , E21C2035/1813 , E21C2035/1816
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公开(公告)号：EP3122998A1
公开(公告)日：2017-02-01
申请号：EP15709929.2
申请日：2015-03-13
申请人： Betek GmbH & Co. KG
发明人： KAMMERER, Karl , FRIEDERICHS, Heiko
IPC分类号： E21C35/197
CPC分类号： E21C35/19 , E21C35/197
摘要： The invention relates to a pick, in particular a round shaft pick, having a pick head and a pick shaft, having a support element which has a centring lug on the underside thereof, wherein the centring lug has a centring surface which extends inclined with respect to the central longitudinal axis of the pick and merges into a seat surface. To this end circumferential channel according to the invention is disposed in the transition region from the centring surface to the seat surface and the depth of the channel relative to the seat surface is greater than or equal to 0.3 mm. The pick has an optimised rotatability and thus a low wear.
摘要翻译： 本发明涉及一种镐，特别是具有镐头和镐轴的镐头，其具有在其下侧具有定心凸耳的支承元件，其中该定心凸耳具有一个中心表面，该定心表面相对于 到镐的中心纵向轴线并合并到座位表面中。 为此，根据本发明的周向通道布置在从定心表面到座表面的过渡区域中，并且通道相对于座椅表面的深度大于或等于0.3mm。 镐具有优化的可转动性，因此磨损低。
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公开(公告)号：EP2352903A4
公开(公告)日：2013-12-18
申请号：EP09824279
申请日：2009-11-06
IPC分类号： E21C35/18 , E21C35/197
CPC分类号： E21C35/18 , E21C35/197
摘要： A mounting for a replaceable tool on a ground-engaging machine, the mounting having a tool holder having an aperture extending into a body portion of the tool holder for receiving a projecting mounting portion of the tool, the tool holder having an inter-engagement structure for mechanically engaging with a base having a complementary structure, the base being adapted to be fixed to the machine, and the mounting further having retaining means for cooperating with the holder and the tool when installed to retain the holder on the base.
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58.发明公开HOLDER BLOCK ASSEMBLY FOR A CUTTING TOOL HAVING A HYDRAULIC PISTON AND METHOD 审中-公开支撑块组件与液压活塞和方法的切削刀具
公开(公告)号：EP2652267A1
公开(公告)日：2013-10-23
申请号：EP10860684.9
申请日：2010-12-17
申请人： Sulosky, William P.
发明人： Sulosky, William P.
IPC分类号： E21C35/197
CPC分类号： E21C35/197 , E21C2035/1826
摘要： A holder block assembly for a drum-type cutting tool has a holder block, a sleeve, and a piston carried in a piston channel formed in the holder block. The sleeve includes a shank and an enlarged flange at an end of the shank. The sleeve shank is received in a hole in the holder block, with the shank and hole wall forming a number of axially spaced interference fits. A source of pressurized fluid applied to the holder block forces the piston against the sleeve to extract the sleeve from the holder block. Sealing structure between the piston and the holder block prevents the release of hydraulic fluid when the sleeve is released.
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59.发明公开
公开(公告)号：EP2639402A2
公开(公告)日：2013-09-18
申请号：EP13171907.2
申请日：2010-10-14
申请人： Betek GmbH & Co. KG
IPC分类号： E21C35/197
CPC分类号： E21C35/197 , E21C2035/1826
摘要： Die Erfindung betrifft Meißel (10), insbesondere Rundschaftmeißel mit einem Meißelkopf (13) und einem Meißelschaft (11), wobei im Bereich des Meißelschaftes eine Befestigungshülse (20) gehalten ist und mit einem Stützelement (30), das einen Führungsbereich (36) aufweist, wobei das Stützelement an seiner Unterseite einen vorstehenden Zentrieransatz (34) aufweist.
Eine verschleißoptimierte Meißelkonstruktion ergibt sich dadurch, dass der Zentrieransatz (34) eine zur Mittellängsachse des Meißels (10) geneigt verlaufende Zentrierfläche aufweist, die über eine zurückversetzte Ausnehmung (35) in eine radial zur Mittellängsachse verlaufende, umlaufende Seitenfläche übergeht.摘要翻译： 凿子（10）具有保持在凿柄（11）的区域中的固定套（20）。 支撑元件（30）包括引导区域和设置在径向外侧周向区域的凹部（32）。 支撑元件在离开凿头（13）的底侧的区域具有偏转部分。 中心部分（12）布置在凿子柄中的凿头的通道区域中。 固定套具有固定元件（21），该固定元件（21）接合在凿柄的圆形槽（15）中以形成旋转轴承。
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公开(公告)号：EP2539541A2
公开(公告)日：2013-01-02
申请号：EP11704293.7
申请日：2011-02-03
申请人： Minnovation Limited
IPC分类号： E21C35/19
CPC分类号： E21C35/197 , E21C2035/1826
摘要： A system for extraction of a mineral cutter pick (1), and optionally any interposed sleeve (19), the pick (1 ) comprises an elongate shank (4) extending from an enlarged head (2), has a piston (12) coaxial with the shank (4), with one end face (16) of the piston (12) subjectable to hydraulic pressure fluid, and with another, opposite end face (15) of the piston (12) capable of engaging an end face (5) of the shank (4), a sealing ring (14) to prevent passage of hydraulic fluid being carried by the piston (12), whereby axial movement of the piston (12), under hydraulic pressure, in turn axially displaces the pick (1 ), whilst further movement of the piston (12) results in extraction, if required, of sleeve (19).
摘要翻译： 一种用于提取矿物切割器镐（1）的系统以及任选地插入的套筒（19），镐（1）包括从扩大的头部（2）延伸的细长柄（4），具有同轴的活塞（12） 与活塞（12）的一个端面（16）以及活塞（12）的另一个相对的端面（15）一起与柄（4） ）以及防止活塞（12）携带的液压流体通过的密封环（14），由此在液压下活塞（12）的轴向运动又使得所述镐（4）轴向移动， 1），同时活塞（12）的进一步移动导致套筒（19）的抽出，如果需要的话。
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