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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。
    • 10. 发明公开
    • METHOD FOR CONTROLLING DRIVING OF WORK MACHINE
    • VERFAHREN ZUR STEUERUNG DES ANTRIEBS EINER WASCHMASCHINE
    • EP2617999A4
    • 2017-05-17
    • EP11824752
    • 2011-09-09
    • KAWASAKI HEAVY IND LTD
    • YAMAMOTO RYOYAMADA MASAHIROYUDATE YOJI
    • F04B49/06B66C23/86E02F9/12E02F9/20E02F9/22F04B49/00F04B49/22
    • E02F9/2221B66C23/86E02F9/123E02F9/128E02F9/2095E02F9/2217E02F9/225E02F9/2292E02F9/2296F04B49/002F04B49/06F04B49/22
    • In drive control of an operating machine configured to drive a structure by a hydraulic motor (2) configured to be driven by operating oil supplied from a hydraulic pump (10) and an electric motor (3) configured to cooperate with the hydraulic motor (2), a speed command generated based on a manipulation amount of a remote control valve (5) configured to determine an operation amount of the structure is subjected to speed feedback control performed based on the actual rotation speed of the hydraulic motor (2) and pressure difference feedback control performed based on an operating oil pressure difference between a suction port and discharge port of the hydraulic motor (2). With this, a tilting angle command is generated such that the operating oil, the amount of which is necessary at the actual rotation speed of the hydraulic motor 2, is ejected, and the tilting angle of the hydraulic pump (10) is controlled. Thus, the amount of oil supplied from the hydraulic pump to the hydraulic motor is controlled in accordance with the manipulation amount of the remote control valve, the rotation speed of the hydraulic motor, and the operating oil pressure difference between the suction port and discharge port of the hydraulic motor. As a result, energy loss is suppressed.
    • 在通过由从液压泵(10)供给的工作油驱动而构成的液压马达(2)驱动构造物的工作机械的驱动控制中,以及与液压马达(2)配合的电动机(3) )中,基于构造成确定结构的操作量的远程控制阀(5)的操纵量生成的速度命令受到基于液压马达(2)的实际旋转速度和压力 基于液压马达(2)的吸入口和排出口之间的工作油压差执行差值反馈控制。 由此产生倾斜角指令,使得在液压马达2的实际转速下需要的操作油被喷出,并且液压泵10的倾斜角被控制。 因此,根据遥控阀的操作量,液压马达的转速以及吸入口和排出口之间的工作油压差来控制从液压泵供给到液压马达的油量 的液压马达。 结果,能量损失被抑制。