-
公开(公告)号：EP3329096A1
公开(公告)日：2018-06-06
申请号：EP16833646.9
申请日：2016-07-29
发明人： ARNOLD, Randy , FOLKERTS, James, E. , FREDERICK, John, R. , HALLBERG, John , KRELLNER, James , MEADE, David , TIRYAKI, Bulent , BONETTI, Serena , BUSH, Peter, Robert , PICKLES, Charles, Simon, James , WORT, Christopher, John, Howard , RIES, Bernd, Heinrich , SCHARTING, Markus, Kilian
IPC分类号： E21C35/193 , B28D1/18 , E21C35/18 , E21C35/19 , E21C35/197
CPC分类号： E21C35/1933 , B28D1/18 , B28D1/188 , E21C27/24
摘要： A cutting bit assembly for a mining machine includes a holder having a first surface, a second surface, and a bore extending therebetween, and a bit having a first end and a second end. The bit further includes a tip, a shank, and a shoulder positioned between the tip and the shank. The shank is positioned in the bore of the holder and defines a shank axis. The shoulder engages the first surface of the holder. The shank includes a projection adjacent the second end. The cutting bit assembly also includes a retainer having a groove and a resilient member. The groove engages a portion of the projection. The resilient portion engages the second surface of the holder and biases the retainer along the shank axis and away from the holder.
-
公开(公告)号：EP3012372A4
公开(公告)日：2017-09-13
申请号：EP14814146
申请日：2014-06-20
申请人： EVERPADS CO LTD
发明人： CHIANG CHUN-LI
IPC分类号： E01C23/12 , E01C23/085 , E21C35/19
CPC分类号： E21C35/193 , E21C35/1933 , E21C2035/191
摘要： A cutting tool holding device (100) includes a base (110), a cutting tool holder (120), a screw element (115), a fitting positioning element (150) and a pulling element (160). The base (110) includes an accommodating groove (111 a), a receiving hole (112a) and a fitting positioning hole (113). The cutting tool holder (120) includes a holder (130) and a cutting tool receiving component (140). The holder (130) includes an engaging portion (132) detachably engaged in the accommodating groove (111 a), and a concave portion (133) communicated with the fitting positioning hole (113) is formed on the engaging portion (132). The fitting positioning element (150) is driven by the pulling element (160) to move in the fitting positioning hole (113) for pressing against the concave portion (133) tightly. The cutting tool holding device (100) has improved stability.
摘要翻译： 一种切削刀具夹持装置（100）包括基座（110），切削刀具夹持器（120），螺杆元件（115），配合定位元件（150）和牵引元件（160）。 底座（110）包括容置槽（111a），容置孔（112a）及配合定位孔（113）。 切割工具支架（120）包括支架（130）和切割工具接收部件（140）。 保持器130包括可拆卸地接合在容纳槽111a中的接合部132，并且在接合部132上形成有与该配合定位孔113连通的凹部133。 装配定位元件150由拉动元件160驱动而在装配定位孔113中移动以紧压凹部133。 切削工具夹持装置（100）具有改进的稳定性。
-
公开(公告)号：EP2917488A1
公开(公告)日：2015-09-16
申请号：EP13786670.3
申请日：2013-11-06
申请人： Element Six GmbH
IPC分类号： E21C35/193
CPC分类号： E21C35/19 , E21C35/183 , E21C35/1933 , E21C2035/1806 , E21C2035/182
摘要： A pick tool assembly (100) comprises a strike tip (210), a holder (230) and a reversible attachment mechanism 245, 350) for coupling the strike tip (210) to the holder (230), in which the strike tip (210) comprises a strike surface including an apex. The pick tool assembly (100) will be configured such that the strike tip (210) can be non- moveably coupled to the holder (230) in a plurality of mutually opposite orientations relative to the holder, the orientations being about a symmetry axis (L) through the apex. The attachment mechanism will limit the opposite orientations (245-i, 245-ii) to being at least about 160 degrees azimuthally apart, and be configured such that the strike tip (210) may be coupled to the holder assembly (230) in either of two and only two mutually opposite orientations.
-
公开(公告)号：EP2238299A1
公开(公告)日：2010-10-13
申请号：EP09700833.8
申请日：2009-01-08
申请人： ESCO CORPORATION
IPC分类号： E02F9/28
CPC分类号： E21C35/1933 , E21C2035/1806
摘要： A tip for use on an earth working roll for mining, construction and public works machines such as crushers, surface miners, milling machines and the like includes a working end provided with side relief to reduce drag and wearing, require less power to drive the rolls, and lengthen the usable life of the tip. The working end can also have a generally flat front surface to improve the yield in a crushing or other similar operation. The tip includes a base and a wear cap releasably secured together by a retainer.
-
公开(公告)号：EP0842349B1
公开(公告)日：2000-03-08
申请号：EP96925412.7
申请日：1996-07-19
申请人： KENNAMETAL INC.
发明人： SIDDLE, David, R. , MASSA, Ted, R.
IPC分类号： E21C35/193 , E21C35/19
CPC分类号： E21C35/19 , E21C35/1933 , E21C2035/191
摘要： An excavation cutting tool holder retention system. The cutting tool holder retention system includes a cutting tool holder having a holder engagement surface and a support block having a tool holder bore into which the cutting tool holder is inserted. A pin having a pin engagement surface is movably mounted to the support block such that the pin engagement surface may be moved to engage the holder engagement surface. At least one of the holder and pin engagement surfaces defines an inclined surface such that when the pin engagement surface is moved to engage the holder engagement surface, the shank portion of the cutting tool holder will be drawn into the tool holder bore. In the preferred embodiment, at least one of the shank portion of the cutting tool holder and tool holder bore is tapered such that the shank portion of the cutting tool holder will be drawn and wedged into the tool holder bore of the support block when the pin engagement surface is moved to engage the holder engagement surface.
-
公开(公告)号：EP1186744A3
公开(公告)日：2003-09-17
申请号：EP01121144.8
申请日：2001-09-04
IPC分类号： E21C35/19
CPC分类号： E21C35/1933 , B28D1/188 , E21C2035/1806 , E21C2035/1826 , E21C2035/191
摘要： Schnellwechselhaltersystem für Werkzeuge auf Walzen, insbesondere für Rundschaftmeißel auf Fräswalzen für den Straßen- und Wegebau, mit einem Wechselhalter (4) mit einer Aufnahme (6) für das Werkzeug (16) und einer auf der Walze (2) aufgeschweißten Box (3), auf der der Wechselhalter (4) mit einer Schraube (5) lösbar befestigt ist, dadurch gekennzeichnet, daß an dem Wechselhalter (4) ein oder zwei Keile (10) ausgebildet sind, in der Box (3) eine bzw. zwei Aufnahme(n) (11) für den bzw. die Keil(e) (10) des Wechselhalters ausgebildet sind und der Wechselhalter (4) und die Box (3) durch die Schraube (5) in gegenseitigem Keileingriff gehalten sind. Der Kopf (7) des Rundschaftmeißels (1) ist ein Stahlgußkörper, in den eine Hartmetallspitze und der Kopf eines Rundschaftkörpers oder ein Körper mit Innengewinde eingegossen sind, in das ein mit Gewinde versehener Rundschaftkörper einschraubbar ist. Das erfindungsgemäße System zeichnet sich durch geringe Verschleißrate des Meißels, des Meißelhalters und der Halterbox aus.
-
公开(公告)号：EP0962627A3
公开(公告)日：2000-02-02
申请号：EP99116136.5
申请日：1996-07-19
申请人： KENNAMETAL INC.
发明人： Siddle,David R. , Massa, Ted R.
IPC分类号： E21C35/193
CPC分类号： E21C35/193 , E21C35/19 , E21C35/1933 , E21C2035/191
摘要： An excavation cutting tool holder retention system. The cutting tool holder retention system includes a cutting tool holder having a holder engagement surface and a support block having a tool holder bore into which the cutting tool holder is inserted. A pin having a pin engagement surface is movably mounted to the support block such that the pin engagement surface may be moved to engage the holder engagement surface. At least one of the holder and pin engagement surfaces defines an inclined surface such that when the pin engagement surface is moved to engage the holder engagement surface, the shank portion of the cutting tool holder will be drawn into the tool holder bore. In the preferred embodiment, at least one of the cutting tool holder and tool holder bore is tapered such that the cutting tool holder will be drawn and wedged into the tool holder bore of the support block when the pin engagement surface is moved to engage the holder engagement surface.
-
公开(公告)号：EP0454729B1
公开(公告)日：1995-02-01
申请号：EP90901992.9
申请日：1989-11-28
申请人： KENNAMETAL INC.
IPC分类号： E21C35/18
CPC分类号： E21C35/1933
摘要： A trenching tool assembly (10) with dual indexing capabilities includes a block (28) formed with a tool shank bore (34) and a cutter bit (12) having a shank (18) which is insertable into the tool shank bore (34). The shank includes a polygonal portion (24) which is preferably a hex. An indexing washer (44) is formed with a central opening (54) shaped to engage the polygonal section (24) of the cutter bit shank (18) and to prevent relative rotation therebetween. The indexing washer (44) engages the tool block (28) and cutter bit shank (18). To change the angle of attack of the cutter bit, the indexing washer (44) is disengaged from the tool block (28) and cutter bit shank (18). The indexing washer (44) and cutter bit shank (18) can be indexed as a unit or independently of one another.
-
公开(公告)号：EP0454729A4
公开(公告)日：1992-08-12
申请号：EP90901992
申请日：1989-11-28
申请人： KENNAMETAL INC.
IPC分类号： E02F9/28 , E21C35/18 , E21C35/193
CPC分类号： E21C35/1933
-
公开(公告)号：EP0414751A4
公开(公告)日：1991-07-17
申请号：EP89905486
申请日：1989-02-23
申请人： CATERPILLAR INC.
发明人： LONN, ALAN, H. , NELSON, DANIEL, W.
IPC分类号： E02F9/28 , E21B10/46 , E21C35/183 , E21C35/193
CPC分类号： E21C35/183 , E02F9/285 , E21C35/1933
摘要： Ground engaging bits used in abrasive road grading applications utilizing carbide inserts brazed to the leading face of the steel tip are beneficial on motor grader blades. Commercial road grading bit assemblies use consistent thickness, rectangular carbide inserts brazed to the leading edge of the steel tip. Due to wear and high residual stresses imparted upon the insert from the brazing operation, premature cracking and breaking of the carbide inserts occur. The subject bit arrangement utilizes a carbide insert (14) with a flat rectangular cutting face (30) of non-constant thickness brazed to a leading edge (16) of a steel body (12). The carbide insert (14) has a thickness that increases from the top (25) of the carbide insert (14) and reaches a maximum at the bottom (26) of the steel body (12), where bit wear is the greatest.
-
-
-
-
-
-
-
-
-
搜索结果
35 条记录 (耗时 0.011 秒)
