公开(公告)号：EP1550772A1

公开(公告)日：2005-07-06

申请号：EP03754083.8

申请日：2003-10-10

申请人： Hitachi Construction Machinery Co., Ltd.

发明人： HOSHI, Akio ,  TAMURA, Kazuhisa ,  TANAKA, Nozomu ,  TABATA, Shuuji ,  KAWASAKI, Koji ,  YANAGISAWA, Yukio

IPC分类号： E02F9/12 ,  F16J15/32

CPC分类号： B66C23/84 ,  E02F9/126

摘要： A swinging pinion on the side of an upper swing structure is meshed with a ring gear which is provided on and around the inner periphery of an inner ring on the side of a vehicular base carrier. A grease bath is provided on the inner side of the inner ring and under a swing frame. A center joint is located in an opening which is provided in the swing frame at the center of swinging motions of the upper swing structure. The grease bath is formed by bath-forming walls around an central top plateau wall which is connected the center joint on the inner peripheral side. An annular seal member of resilient material is interposed between the top plateau wall of the grease bath and the lower side of the swing frame. The annular seal member is formed in a height which is larger than the width of spacing between the top plateau wall and the swing frame. At one side, the seal member is detachably fixed either on the side of the swing frame or on the side of the top plateau wall section. At the other side, the seal member is provided with an annular sliding portion which is held in sliding contact with the other one of the swing frame and the top plateau wall in an inclined posture in a radially inward direction.

摘要翻译： 在上摆动结构侧的摆动小齿轮与设置在车辆基座的侧面上的内圈的内周侧的环形齿轮啮合。 在内圈的内侧和摆动框架下设置润滑脂。 中心接头位于在上部摆动结构的摆动运动的中心处设置在摆动框架中的开口中。 油浴是通过围绕中心顶部平台壁的浴形成壁形成的，中心顶部平台壁连接在内周侧的中心接头。 弹性材料的环形密封件介于润滑脂的顶部平台壁与摆动框架的下侧之间。 环形密封构件形成为比顶部平台壁和摆动框架之间的间隔宽度大的高度。 在一侧，密封构件可拆卸地固定在摆动框架的侧面或顶部平台壁部分的侧面上。 在另一侧，密封构件设置有环形滑动部分，其在径向向内的方向上以倾斜姿势与摇摆框架和顶部平台壁中的另一个滑动接触。

公开(公告)号：EP1409798A1

公开(公告)日：2004-04-21

申请号：EP02791460.5

申请日：2002-07-17

申请人： Neunteufel, Hans ,  Erlinger, Josef

发明人： Neunteufel, Hans ,  Erlinger, Josef

IPC分类号： E02F9/12 ,  E02F3/38

CPC分类号： E02F3/384 ,  E02F9/121

摘要： The operating pressure for the hydraulic drive means (15; 26) is generated in the chassis (2) of the vehicle (1). A revolving structure (3) is arranged on the chassis, said revolving structure carrying the driver's cabin (7), a boom (5) with a tools (6) and a hydraulic motor for rotation of the revolving structure (3) relative to the chassis. The revolving structure is connected to the chassis by a live ring (16; 23) that is driven by said hydraulic motor and has a hydraulic fluid duct (12; 24) between the chassis and the revolving structure. The chassis is provided with an eccentric plate (11) carrying on its top side the above-mentioned live ring for the revolving structure while the bottom side of said eccentric plate has an eccentrically supported displacement bearing (13). Said displacement bearing is secured by a latching device (25) on the bottom side of the eccentric plate (11) during normal operation of the vehicle or digger (1). In order to displace the revolving structure (3) relative to the chassis (2), the displacement bearing (13) is unlatched and the revolving structure is fixed to the ground with the aid of the boom (5). Displacement of the revolving structure is carried out by actuating the hydraulic motor when the displacement bearing is unlatched. A linearly guided displacement plate (21) for lateral displacement can also be used instead of the eccentric plate.

公开(公告)号：EP1384902A3

公开(公告)日：2004-02-25

申请号：EP03077961.5

申请日：1997-06-26

申请人： KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd.

发明人： Tohji, Yutaka, c/o Yutani Heavy Industries Ltd. ,  Fujii, Kazuhiko, c/o Yutani Heavy Industries Ltd. ,  Doi, Kazuyuki, c/o Yutani Heavy Industries Ltd.

IPC分类号： F15B11/04 ,  E02F9/12

CPC分类号： F16H61/4061 ,  E02F9/123 ,  E02F9/128 ,  E02F9/2025 ,  E02F9/2207 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/0406 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/30505 ,  F15B2211/3056 ,  F15B2211/3116 ,  F15B2211/324 ,  F15B2211/329 ,  F15B2211/40515 ,  F15B2211/45 ,  F15B2211/50527 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/6316 ,  F15B2211/6336 ,  F15B2211/6355 ,  F15B2211/7053 ,  F15B2211/7058 ,  F15B2211/71 ,  F15B2211/75 ,  F15B2211/755

摘要： A construction machine comprising a lower carriage (12); a working attachment (17) attached rotatably to an upper rotating structure (14); and posture detecting means for detecting a posture of the working attachment, characterized in that the construction machine has a control circuit comprising: a rotating direction control valve (29) for controlling rotation of the upper rotating structure; an unloading valve being a cut-off valve (33) adapted for opening and closing motions to control bleed-off of said rotating direction control valve (29), wherein an outlet of a center bypassing oil path for return of a main pressure oil, said center bypassing path extending through a neutral position of said rotating direction control valve (29), and an oil tank (32) are in communication with each other through said cut-off valve (33); a controller (16) adapted to control opening and closing of said cut-off valve (33) on the basis of detection signals from said posture detecting means and rotating operation detecting means (42L,42R), said controller (16) providing an operation command signal to an electromagnetic proportional pressure controlling valve (35) in such a manner that an operation command pilot pressure is provided to said pilot port (34) of the cut-off valve (33).

摘要翻译： 一种建筑机械，包括一个下部滑架（12）; 一个可转动地安装在上部旋转结构（14）上的工作附件（17）; 以及姿态检测装置，用于检测所述工作附件的姿态，其特征在于，所述建筑机械具有控制电路，所述控制电路包括：用于控制所述上部旋转结构的旋转的旋转方向控制阀（29） 作为用于开闭运动来控制所述旋转方向控制阀（29）的泄放的截止阀（33）的卸载阀，其中用于主压力油返回的中央旁通油路的出口， （29）的中立位置的中心旁通通路和油箱（32）通过所述截止阀（33）相互连通;所述中央旁通路径延伸穿过所述旋转方向控制阀（29）的中间位置。 控制器（16），用于根据来自所述姿势检测装置和旋转操作检测装置（42L，42R）的检测信号控制所述截止阀（33）的打开和关闭，所述控制器（16）提供操作 向所述电磁比例压力控制阀（35）发送指令信号，以便向所述截止阀（33）的所述先导端口（34）提供操作指令先导压力。

公开(公告)号：EP1126088A3

公开(公告)日：2002-07-31

申请号：EP01103212.5

申请日：2001-02-12

申请人： DEERE & COMPANY

发明人： Gitter, Richard John

IPC分类号： E02F9/22 ,  E02F9/12

CPC分类号： E02F9/226 ,  E02F9/2207 ,  E02F9/2296

摘要： A hydraulic system is provided with a pump (42) supplying pressurized hydraulic fluid through a first supply line (44) to a closed center control valve (40). From the control valve (40) the fluid is directed through work lines (46, 48) to a hydraulic motor (36). Exhausted hydraulic fluid from the hydraulic motor (36) is directed through the control valve (40) to an exhaust line (50) having a back pressure check valve (52) set at a first pressure level. The hydraulic motor (36) is provided with a pressure relief valve (56, 58) and an anti-cavitation valve (60, 62) that are mounted in parallel with one another. The anti-cavitation valve (60, 62) is hydraulically coupled to the exhaust line (50). To keep the exhaust line (50) fully charged a second supply line (70) extends between the first supply line (44) and the exhaust line (50). The second supply line (70) is provided with a pressure reducing valve (72) that is set at a second pressure level. The second pressure level of the pressure reducing valve (72) is less than the first pressure level of the back pressure check valve (52).

公开(公告)号：EP1152092A1

公开(公告)日：2001-11-07

申请号：EP01116779.8

申请日：2001-07-20

申请人： Neunteufel, Hans ,  Erlinger, Josef

发明人： Neunteufel, Hans ,  Erlinger, Josef

IPC分类号： E02F9/12 ,  E02F3/38

CPC分类号： E02F3/384 ,  E02F9/121

摘要： Die Erfindung bezieht sich auf ein Fahrzeug, insbesondere auf einen Bagger (1), der einen mit Rädern oder Ketten bestückten Unterwagen (2) aufweist. Im Unterwagen wird der Betriebsdruck für die hydraulischen Antriebsmittel erzeugt. Auf dem Unterwagen ist ein Oberwagen (3) angeordnet, der den Führerstand (7), einen Ausleger (5) mit Arbeitsgerät, beispielsweise eine Baggerschaufel (6), und einen Hydromotor für die Drehung des Oberwagens relativ zum Unterwagen trägt. Der Oberwagen ist mit dem Unterwagen über einen Drehkranz (16) verbunden, der von dem genannten Hydromotor (15) angetrieben wird und der eine hydraulische Druckmitteldurchführung zwischen Unterwagen und Oberwagen aufweist. Erfindungsgemäß wird der Unterwagen (2) mit einer Exzenterplatte (11) versehen, die auf ihrer Oberseite den genannten Drehkranz (16) für den Oberwagen trägt, während sie auf ihrer Unterseite ein hierzu exzentrisch gelagertes Verstellager (13) aufweist. Das Verstellager (13) auf der Unterseite der Exzenterplatte ist im Normalbetrieb des Fahrzeugs oder Baggers durch eine Verriegelung festgestellt. Zur Verstellung des Oberwagens relativ zum Unterwagen wird das Verstellager entriegelt und Oberwagen mit Hilfe des Auslegers am Erdboden fixiert. Durch Betätigung des Hydromotors erfolgt bei entriegeltem Verstellager die Verstellung des Oberwagens. Statt der Exzenterplatte kann auch eine linear geführte Verstellplatte mit Anschlag zur seitlichen Verstellung des Oberwagens verwendet werden. Der Drehkranz kann dann unter der Verstellplatte und der Drehantrieb über der Verstellplatte liegen.

摘要翻译： 一个旋转安装用于改装到土方作业机器，E.G. 挖掘机的，具有偏心板（11）配有安装件的上轴承（16）和下部轴承（13）和与该板的移动机的上部，工作部分在任何选定的方向上的相对设置，即 移动机器的重心在斜坡上作业时。 嵌合可以是偏心板或滑动配合的。

公开(公告)号：EP1016762A2

公开(公告)日：2000-07-05

申请号：EP99125135.6

申请日：1999-12-16

申请人： J.C. BAMFORD EXCAVATORS LIMITED

发明人： Shaw, Simon Jeffrey William ,  Naylor, Patrick Edward ,  Turnbull, Kevin Roy

IPC分类号： E02F9/12

CPC分类号： E02F9/0891 ,  E02F3/325 ,  E02F3/384 ,  E02F3/964 ,  E02F9/0866

摘要： An earth moving apparatus (10) having a base (11) including a ground engaging propulsion means (12,13) whereby the apparatus (10) may move over the ground, first hydraulic actuator means (60,61) to drive the ground engaging propulsion means (12,13), a body (15) carried on the base (11), second hydraulic actuator means (65) for moving the body (15) relative to the base (11) about a first generally upright axis (A), a working arm (21) connected at or towards one end (25) thereof to the body (15), third actuator means (26) for moving the working arm (21) relative to the body (15) about a second generally upright axis (B) and fourth hydraulic actuator means (28) for moving the working arm (21) relative to the body (15) about a first generally horizontal axis (C), and the working arm (21) carrying at or towards a second outer end (29) thereof, an earth working implement (30), fifth hydraulic actuator means (31) to move the working implement (30) about a second generally horizontal axis (D), characterised in that the first, second, third, fourth and fifth hydraulic actuator means are in use, provided with pressurised hydraulic fluid by a single variable displacement pump (43).

摘要翻译： 一种地面移动装置（10），其具有包括地面接合推进装置（12,13）的底座（11），借此使装置（10）能够在地面上移动，第一液压致动器装置（60,61）以驱动地面接合 推进装置（12,13），承载在基座（11）上的主体（15），第二液压致动器装置（65），用于围绕第一大致垂直轴线（A）相对于基座（11）移动主体 ），在其一端（25）处或与其一端（25）连接到主体（15）的工作臂（21），用于相对于主体（15）相对于主体（15）移动工作臂（21）的第三致动器装置（26） 竖立轴线（B）和第四液压致动器装置（28），用于围绕第一大致水平轴线（C）相对于主体（15）移动工作臂（21），并且工作臂（21）承载或朝向 第二外端（29），土工工具（30），第五液压致动器装置（31），用于围绕第二大体水平轴线（D）移动工作工具（30） 其特征在于，第一，第二，第三，第四和第五液压致动器装置在使用中通过单个可变排量泵（43）设置有加压的液压流体。

公开(公告)号：EP1010820A1

公开(公告)日：2000-06-21

申请号：EP98919525.0

申请日：1998-05-08

申请人： KOMATSU LTD.

发明人： KANDA, Toshimasa, Osaka Works of Komatsu Ltd. ,  AOSHIBA, Norihiro, Awazu Works of Komatsu Ltd. ,  CHAMURA, Michio, Awazu Works of Komatsu Ltd. ,  YOSHINADA, Hiroshi, Kenkyusho of Komatsu Ltd. ,  OHTSUKASA, Naritoshi, Kenkyusho of Komatsu Ltd.

IPC分类号： E02F3/96 ,  E02F9/12 ,  B66C23/84 ,  A01D34/86 ,  E04G23/08

CPC分类号： E02F3/966 ,  B66C23/84 ,  B66F9/065 ,  E02F3/20 ,  E02F3/307 ,  E02F3/325 ,  E02F3/3411 ,  E02F3/964 ,  E02F3/965 ,  E02F9/085 ,  E02F9/123

摘要： A work machine for achieving efficient coordinated operations by a plurality of kinds of operating units, comprising first and second swivel driving means and first and second swivel joints, wherein a first swiveling base bearing a first operating unit and a second swiveling base bearing a second operating unit can swivel around a common swiveling axis independently relative to a traveling base.

摘要翻译： 一种作业机械，用于通过多种操作单元实现有效的协调操作，包括第一和第二旋转驱动装置以及第一和第二旋转接头，其中第一旋转底座支承第一操作单元，第二旋转底座支承第二操作 单元可以相对于移动基座独立地围绕共同的旋转轴线旋转。

公开(公告)号：EP0603421B1

公开(公告)日：1999-11-10

申请号：EP93916164.2

申请日：1993-07-14

申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.

发明人： SATO, Hitoshi ,  INO, Kazuyuki ,  KIMURA, Kenichi

IPC分类号： F15B11/00 ,  E02F9/22 ,  E02F9/12 ,  F15B13/02

CPC分类号： E02F9/128 ,  E02F9/123 ,  F15B11/028 ,  F15B11/0445 ,  F15B13/02 ,  F15B2211/20538 ,  F15B2211/30525 ,  F15B2211/31576 ,  F15B2211/324 ,  F15B2211/40515 ,  F15B2211/41536 ,  F15B2211/428 ,  F15B2211/50581 ,  F15B2211/5159 ,  F15B2211/6054 ,  F15B2211/7058 ,  F15B2211/715 ,  F16H61/40 ,  F16H61/4043

摘要： An internal body driving unit wherein reverse rotation of a hydraulic motor (1) after an inertial rotation is prevented, so that the hydraulic motor (1) can be quickly stopped together with the inertial body. An oil pressure chamber (26) of a reverse rotation preventing valve body (21) and an oil reservoir chamber (34) of an oil liquid sucking-supplying device (32) are connected to each other through a tank piping (27) having a throttle (38), and, the oil liquid sucking-supplying device (32) supplies, due to a displacement of a piston (31) caused in accordance with pressure acting on a pilot oil chamber (33), the oil liquid from the oil reservoir chamber (34) to the oil pressure chamber (26) or vice versa. Accordingly, when the inertial rotation of the hydraulic motor (1) is stopped temporarily, the oil liquid is supplied from the oil reservoir chamber (34) to the oil pressure chamber (26), whereby the reverse rotation preventing valve body (21) is slidably moved from a position (a) for closing the valve to a position (b) for opening the valve, so that the reverse rotation of the hydraulic motor (1) can be prevented.

公开(公告)号：EP0693395B1

公开(公告)日：1999-05-12

申请号：EP95305069.7

申请日：1995-07-20

申请人： THWAITES LIMITED

发明人： Williams, Peter

IPC分类号： B60P1/16 ,  E02F9/12 ,  E02F9/22

CPC分类号： E02F9/2214 ,  B60P1/162 ,  E02F9/0841

公开(公告)号：EP0814206A1

公开(公告)日：1997-12-29

申请号：EP97304236

申请日：1997-06-17

申请人： KOBE STEEL LTD

发明人： KINUGAWA HIDEKI ,  KOMIYAMA MASAYUKI

IPC分类号： E02F9/20 ,  E02F9/22 ,  E02F9/12 ,  E02F9/08

CPC分类号： E02F9/207 ,  E02F9/22

摘要： There are provided an electric motor 3 driven by (electric) power from a battery 2, a hydraulic pump 4 driven by the electric motor 3, a hydraulic motor 12b driven by operating oil discharged from the hydraulic pump 4; an operating member 13 for performing a predetermined operation by the drive of the hydraulic motor, and operating levers 5 for operating the operating member 13 by switching a flow and a shut-off of the operating oil discharged from the hydraulic pump 4. The operating levers 5 are operatable between a neutral position at which the hydraulic motor stops operation and an operating position at which the hydraulic motor operates. An acceltrimmer 65 is provided to adjust the supply amount of power from the battery 2 to the electric motor in the state where the operating levers are operated to the operating position.

摘要翻译： 设置由电池2驱动的电动马达3，由电动马达3驱动的液压泵4，由从液压泵4排出的工作油驱动的液压马达12b， 用于通过液压马达的驱动执行预定操作的操作构件13以及用于通过切换从液压泵4排出的操作油的流动和关闭来操作操作构件13的操作杆5.操作杆 5能够在液压马达停止操作的空档位置和液压马达操作的操作位置之间操作。 加速器65设置成在操作杆被操作到操作位置的状态下调节从电池2到电动机的电力供应量。