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    • 2. 发明公开
    • HYDRAULIKEINHEIT
    • EP3209594A1
    • 2017-08-30
    • EP15787457.9
    • 2015-10-20
    • Liebherr-Components Biberach GmbH
    • HAUSLADEN, NorbertSCHINDLER, Viktor
    • B66C13/12B60K17/28B66C13/20B66C23/86E02F9/12
    • F16H45/00B60K17/28B66C13/12B66C13/20B66C23/54B66C23/86E02F9/123F16C33/6677F16C2361/43F16D13/54F16D25/061F16D25/0638F16D31/00F16D33/00F16D47/06F16H47/00
    • The invention relates to a hydraulic unit (4), comprising a housing (8), in which a hydraulic converter (10) is accommodated, which is coupled to a drive shaft (11), which has a connection shaft piece (12) located outside of the housing for connecting to a mechanical drive element (6). The invention further relates to a hydraulic drive device, comprising such a hydraulic unit (4) and to a drive train connection piece, to which the hydraulic unit is connected. According to the invention a coupling (16) for connecting and disconnecting the hydraulic unit is integrated into the hydraulic unit itself such that a mechanical drive train to which the hydraulic unit is connected can remain unchanged or does not have to be adapted to the coupling in a specific way. According to the invention, a coupling (16) for coupling the connection shaft piece (12) of the hydraulic unit to and uncoupling said connection shaft piece from the hydraulic converter of the hydraulic unit is accommodated in the housing (8) of the hydraulic unit.
    • 本发明涉及一种液压单元(4),该液压单元(4)包括容纳液压转换器(10)的壳体(8),该液压转换器与驱动轴(11)联接,该驱动轴具有位于其中的连接轴件 用于连接到机械驱动元件(6)的外壳外。 本发明还涉及一种液压驱动装置,该液压驱动装置包括这种液压单元(4)和传动系连接件,液压单元连接到该传动系连接件。 根据本发明,用于连接和断开液压单元的联接器(16)被集成到液压单元本身中,使得液压单元所连接到的机械传动系可以保持不变或不必与接合器 一个具体的方法。 根据本发明,用于将液压单元的连接轴件(12)联接到所述液压单元的液压转换器和从所述液压单元的液压转换器解除联接的联接件(16)被容纳在液压单元的壳体(8) 。
    • 8. 发明公开
    • Slewing control device for crane
    • DrehwerksteuerungsvorrichtungfürKran。
    • EP0454923A1
    • 1991-11-06
    • EP90313170.4
    • 1990-12-05
    • KABUSHIKI KAISHA KOBE SEIKO SHO
    • Yoshimatsu, HideakiFukushima, Koichi
    • B66C23/86
    • B66C23/86
    • A slewing control device for a hydraulic slewing crane (100) adapted to supply a discharge oil from a hydraulic pump (1) through a slewing control valve (2,3) to a slewing motor (6) and control a rotational direction and a rotational speed of the slewing motor. The slewing control device includes a brake pressure control valve (53,54,55) for variably controlling a discharge pressure (PB) of the slewing motor (6), an acceleration pressure control valve (11,12,13) for variably controlling a suction pressure (PA) of the slewing motor (6), and a controller (8) for outputting to both the pressure control valves a pressure control signal to be determined according to an operational condition of the crane upon braking of a slewing body and controlling both the discharge pressure (PB) and the suction pressure (PA) of the slewing motor (6) to control a pressure differential (△p) therebetween. Accordingly, even when a braking torque (TB) is small, the slewing body can be smoothly braked to be stopped at a target position accurately with no oscillation of a suspended load remaining.
    • 一种用于液压回转起重机(100)的回转控制装置,其适于将来自液压泵(1)的排出油通过回转控制阀(2,3)提供给回转马达(6),并且控制旋转方向和旋转 回转电机的转速。 回转控制装置包括用于可变地控制回转马达(6)的排出压力(PB)的制动压力控制阀(53,54,55),加速度压力控制阀(11,12,13),用于可变地控制 所述回转马达(6)的吸入压力(PA)和用于向所述压力控制阀输出的压力控制信号的控制器(8),所述压力控制信号将根据所述起重机在回转体的制动时的操作条件而被确定并控制 排出压力(PB)和回转马达(6)的吸入压力(PA)两者以控制它们之间的压力差(INCREMENT p)。 因此,即使在制动转矩(TB)小的情况下,回转体也可以平稳地制动而在目标位置精确地停止,而不会产生暂停的负载的振荡。
    • 9. 发明公开
    • CRANE WITH HYDRAULIC BRAKING DEVICE FOR SWING DRIVE
    • 起重机用于摆动驱动的液压制动装置
    • EP3293145A1
    • 2018-03-14
    • EP17158857.7
    • 2017-03-02
    • Hitachi Sumitomo Heavy Industries Construction Crane Co., Ltd.
    • Miyoshi, Kota
    • B66C23/86
    • B66C23/86B66C13/16B66C13/20B66C23/36B66C23/54F15B11/0445F15B11/08F15B13/0433
    • The crane includes a swing brake device (20) installed between a hydraulic motor (2) and a control valve (6) and having a flow restrictor; a first backpressure detector detecting a motor backpressure between the flow restrictor and one of ports of the hydraulic motor (2); a second backpressure detector detecting a motor backpressure between the flow restrictor and the other port of the hydraulic motor (2); and a control device (13). The control device (13) has an external-force direction estimation unit (13b) that estimates a swing direction of an upperstructure (103) under an external force acting on the upperstructure (103) on the basis of a motor backpressure detected by the first backpuressure detector and a motor backpressure detected by the second backpressure during an operating state of the swing brake device (20). The control device (13) has a notification control unit (13h) that causes the notification device (19) to provide notification of the estimated swing direction of the upperstructure (103).
    • 该起重机包括安装在液压马达(2)和控制阀(6)之间并具有限流器的摆动制动装置(20) 第一背压检测器,其检测所述限流器与所述液压马达(2)的一个端口之间的马达背压; 检测流量限制器与液压马达(2)的另一端口之间的马达背压的第二背压检测器; 和控制装置(13)。 控制装置13具有外力方向估计部13b,该外力方向估计部13b基于由第一检测部13检测到的电动机背压来估计在作用于上部旋转体103的外力的作用下的旋转体103的旋转方向。 在回转制动装置(20)的运行状态期间由第二背压检测到的背压检测器和马​​达背压。 控制装置(13)具有通知控制部(13h),该通知控制部(13h)使通知装置(19)通知推定回转体(103)的摆动方向。