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    • 1. 发明公开
    • Handwerkzeugmaschine und Steuerungsverfahren
    • 手工工具和控制方法
    • EP2653270A3
    • 2017-08-09
    • EP13163889.2
    • 2013-04-16
    • HILTI Aktiengesellschaft
    • Hartmann, MarkusPfeiffer, Eduard
    • B25D17/24B25D11/12
    • B25D17/245B25D11/125B25D2211/068B25D2250/195B25D2250/221
    • Die erfindungsgemäße Handwerkzeugmaschine hat eine Werkzeugaufnahme 2 zum Haltern eines meißelnden Werkzeugs auf einer Arbeitsachse 10 . Ein pneumatisches Schlagwerk 6 hat einen durch einen Motor 5 um einen Hub zwischen einem werkzeugfernen Totpunkt und einem werkzeugnahen Totpunkt hin-und-her getriebenen Erreger 12, einen auf der Arbeitsachse 10 zwischen einem werkzeugfernen Umkehrpunkt und einem Schlagpunkt hin-und-her bewegten Schläger 13, und eine von dem Erreger 12 und dem Schläger 13 abgeschlossene pneumatische Kammer 15, die die Bewegung des Schlägers 13 an die Bewegung des Erregers 12 ankoppelt. Eine Dämpfeinrichtung 39 erhöht den Druck in der pneumatischen Kammer 15, wenn der Erreger 12 sich bei seiner Bewegung in Richtung zu dem werkzeugfernen Totpunkt auf weniger als den halben Hub an den werkzeugfernen Totpunkt angenähert hat.
    • 气动冲击机构6通过电动机5在工具远程死点和靠近工具的死点前后驱动的激励器12之间有一个行程, 在工具远端的反转点与来回跳动的球棒13之间的工作轴线10以及由激励器12和球棒13气动室15完成的球杆13的运动将球拍13的运动耦合到激励器12的运动。 当激励器12朝向刀具远端死点运动时,阻尼器39增加气动室15中的压力,使其小于工具死点的行程的一半。
    • 2. 发明公开
    • HANDWERKZEUGMASCHINE
    • EP3068585A1
    • 2016-09-21
    • EP14793129.9
    • 2014-11-04
    • Hilti Aktiengesellschaft
    • WIEDNER, AaronHARTMANN, MarkusSERF, ManuelPFEIFFER, Eduard
    • B25D11/12B25D17/24
    • B25D11/125B25D17/245B25D2250/035B25D2250/185B25D2250/231B25D2250/245
    • A handheld machine tool (1) has a tool receiving area (2) for receiving a chiseling tool (4) on a work axis (11), a motor (5), and a striking mechanism (6). The striking mechanism (6) contains a striker (15) which is guided on the work axis (11), an exciter (16) which is periodically driven by the motor (5), and a pneumatic chamber (19) for coupling the movement of the striker (15) to the periodic movement of the exciter (16). The striker (15) strikes the tool (4) or an intermediate striker (31) in a strike direction (12) at the strike point (28). The exciter (16) is driven between a first dead center (26) at a distance from the strike point (28) and a second dead center (26) in the vicinity of the strike point (28). The pneumatic chamber (19) is formed between the striker (15) and an exciter (16) end face (24) facing the striker (15). A housing (34), which is encapsulated in an air-tight manner, has an interior (37) which is closed by an exciter (16) end face (41) facing away from the striker (15). The interior (37) is connected to the pneumatic chamber (19) by a first valve (38) which can be closed by the striker (15). Additionally, the interior (37) is connected to the pneumatic chamber (19) by a second valve (39) which can be closed by the exciter (16). The first valve (38) is arranged in the vicinity of the strike point (28), and the second valve (39) is arranged in the vicinity of the first dead center (26).
    • 手持式工具机(1)具有用于接收工作轴线(11)上的凿刀具(4)的工具容纳区域(2),马达(5)和冲击机构(6)。 冲击机构6包括在工作轴线11上引导的冲击器15,由马达5周期性驱动的激励器16, (15)的周期性运动到激励器(16)的周期性运动。 撞击器(15)在撞击点(28)沿撞击方向(12)撞击工具(4)或中间撞击器(31)。 激励器(16)在与撞击点(28)相距一定距离的第一死点(26)与撞击点(28)附近的第二死点(26)之间被驱动。 气动室(19)形成在撞击器(15)和面对撞击器(15)的激励器(16)端面(24)之间。 以气密方式封装的壳体(34)具有由背离撞针(15)的激励器(16)端面(41)封闭的内部(37)。 内部(37)通过第一阀(38)连接到气动室(19),第一阀(38)可由撞针(15)关闭。 此外,内部(37)通过可由激励器(16)关闭的第二阀(39)连接到气动室(19)。 第一阀(38)布置在撞击点(28)附近,第二阀(39)布置在第一止点(26)附近。
    • 7. 发明公开
    • Power tool
    • 电动工具
    • EP2415565A1
    • 2012-02-08
    • EP11175992.4
    • 2011-07-29
    • Makita Corporation
    • Kamegai, HikaruFurusawa, Masanori
    • B25D17/24
    • B25D17/245B25D2217/0084B25D2217/0092B25D2250/065B25D2250/121B25D2250/245
    • The power tool (101) performs a predetermined operation on a workpiece at least by axial linear movement of a tool bit (119) coupled to a front end region of a housing (103). The power tool includes driving mechanisms (113, 115) that are housed within the housing (103) and linearly drives the tool bit (119), and a dynamic vibration reducer (151) that has a weight (153) which is allowed to linearly move under a biasing force of an elastic element, and reduces vibration caused during operation, by movement of the weight (153) in the axial direction of the tool bit. A dynamic vibration reducer housing space (149) for housing the weight (153) and the elastic element of the dynamic vibration reducer (151) is integrally formed with the housing (103).
    • 至少通过联接到壳体(103)的前端区域的刀头(119)的轴向线性运动,动力工具(101)在工件上执行预定操作。 动力工具包括容纳在壳体(103)内并线性地驱动工具头(119)的驱动机构(113,115),以及具有允许线性地施加重量(153)的动态减振器(151) 通过弹性元件的作用力而移动,并且通过配重153在工具钻头的轴向上的移动来减少在工作中产生的振动。 用于容纳所述重物(153)和所述动态吸振器(151)的所述弹性元件的动态吸振器收容空间(149)与所述壳体(103)一体形成。
    • 8. 发明公开
    • Power tool
    • 电动工具
    • EP2281662A2
    • 2011-02-09
    • EP10171870.8
    • 2010-08-04
    • Makita Corporation
    • Kakiuchi, YasuhiroBito, Shinya
    • B25D17/24B25D17/26
    • B25D17/26B25D17/245B25D2211/003B25D2217/0084B25D2250/185B25F5/006B25F5/02F16H57/027
    • It is an object of the invention to provide a power tool that effectively prevents leakage of lubricant while regulating the internal pressure of a housing space for a driving mechanism.
      The object can be achieved by a representative power tool that includes a tool bit (119), a driving mechanism (113,115), an enclosed housing space (107a) which houses the driving mechanism and in which lubricant is sealed in, and a path (151) which regulates pressure of the housing space (107a). On the path, a filter chamber (154) having a predetermined capacity, an inner passage (155c) that communicates the filter chamber (154) with the housing space (107a), and an outer passage (159c) that communicates the filter chamber (154) with the outside are formed. A filter (157) is disposed in the filter chamber (154) and spaced apart from a peripheral edge of an opening of the outer passage (159c) which is open to the filter chamber (154), so that a space (161) is created on the opening edge side of the filter chamber (154). A throttle member (163,167) is disposed in the space (161) and throttles flow of air which flows out to the outer passage (159c) through the filter (157).
    • 本发明的目的是提供一种动力工具,其在调节用于驱动机构的容纳空间的内部压力的同时有效地防止润滑剂的泄漏。 该目的可以通过代表性的动力工具来实现,该动力工具包括工具头(119),驱动机构(113,115),容纳驱动机构并且润滑剂被密封在其中的封闭的容纳空间(107a)以及路径 151),其调节收容空间(107a)的压力。 在该路径上,具有预定容量的过滤室(154),使过滤室(154)与容纳空间(107a)连通的内部通道(155c)以及连通过滤室的外部通道(159c) 154)与外部形成。 过滤器(157)设置在过滤室(154)中并且与通向过滤室(154)的外部通道(159c)的开口的周缘间隔开,使得空间(161)为 形成在过滤室(154)的开口边缘侧。 节流部件(163,167)设置在空间(161)中,并且节流通过过滤器(157)流出到外部通道(159c)的空气流。
    • 9. 发明公开
    • PERCUSSION DEVICE AND ROCK DRILLING MACHINE
    • 冲击装置和钻孔机
    • EP2069602A1
    • 2009-06-17
    • EP07835069.1
    • 2007-09-28
    • Atlas Copco Rock Drills AB
    • ANDERSSON, Kurt
    • E21B1/38B25D17/06E21B1/26E21B4/14
    • B25D17/06B25D17/245B25D2217/0023B25D2250/181E21B1/02
    • A percussion device (5) for a rock drilling machine (1) including a percussive piston (6; 15) which is reciprocally movable inside a cylinder and an impact receiving element (7;16) with an impact surface (A;A' ), against which the percussive piston is arranged to perform strikes in an impact direction for transferring of percussive energy through Shockwaves to a percussive tool. The percussion device is distinguished by the impact receiving element (7; 16) including a Shockwave modifying portion (9; 17) which extends in a direction opposite to the impact direction as seen from a plane (P; P') through the impact surface (A; A'). The invention also concerns a rock drilling machine and a rock drilling rig.
    • 一种用于凿岩机(1)的冲击装置(5),其包括可在气缸内往复运动的冲击活塞(6; 15)和具有冲击表面(A; A')的冲击接收元件(7; 16) ,冲击活塞布置成沿冲击方向进行冲击,以将冲击能量通过冲击波传递到冲击工具。 冲击装置的特征在于包括冲击波修正部分(9; 17)的冲击接收元件(7; 16),该冲击波修正部分沿与冲击方向相反的方向延伸,如从平面(P; P')看穿过冲击表面 (A; A')。 本发明还涉及凿岩机和岩石钻机。