Cobnble g
    81.
    发明授权

    公开(公告)号:US302035A

    公开(公告)日:1884-07-15

    申请号:US302035D

    CPC分类号: B66C23/86

    Drive control method of operating machine
    87.
    发明授权
    Drive control method of operating machine 有权
    操作机驱动控制方式

    公开(公告)号:US09309645B2

    公开(公告)日:2016-04-12

    申请号:US13823784

    申请日:2011-09-09

    摘要: In drive control of an operating machine configured to drive a structure by a hydraulic motor configured to be driven by operating oil supplied from a hydraulic pump an electric motor configured to cooperate with the hydraulic motor, a speed command generated based on a manipulation amount of a remote control valve 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 and pressure difference feedback control performed based on an operating oil pressure difference between a suction port and discharge port of the hydraulic motor. 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, is ejected, and the tilting angle of the hydraulic pump is controlled.

    摘要翻译: 在构造成通过液压马达驱动结构的操作机构的驱动控制中,所述液压马达构造成通过从液压泵供给的油的工作来驱动,构成为与所述液压马达配合的电动机,基于所述液压马达的操作量而生成的速度指令 根据液压马达的实际旋转速度来决定结构的运转量的远程控制阀,根据液压马达的实际旋转速度进行速度反馈控制,以及基于在吸入口与排出口之间的工作油压差 液压马达。 由此,产生倾斜角度指令,使得其在液压马达的实际旋转速度下所需的工作油被喷射,并且控制液压泵的倾斜角度。

    Rotary joint
    88.
    发明授权
    Rotary joint 有权
    旋转接头

    公开(公告)号:US09085442B2

    公开(公告)日:2015-07-21

    申请号:US12630588

    申请日:2009-12-03

    摘要: The present disclosure relates to a rotary joint for rotatable connection of the uppercarriage with the undercarriage of a crane, wherein they can each be connected with the uppercarriage on the one hand and the undercarriage on the other hand via a quick-release coupling.

    摘要翻译: 本公开涉及一种用于将上部车架与起重机的起落架可旋转连接的旋转接头,其中它们可以通过快速释放联接器一方面与上部车架和起落架相连接。

    Hydraulic control circuit for overcontrol of a slewing gear drive
    90.
    发明授权
    Hydraulic control circuit for overcontrol of a slewing gear drive 有权
    液压控制回路,用于过度控制回转齿轮传动

    公开(公告)号:US08689549B2

    公开(公告)日:2014-04-08

    申请号:US12743094

    申请日:2008-11-07

    IPC分类号: F15B11/08

    摘要: A hydraulic control circuit for the overcontrol of a hydraulic system which controls a drive, in particular for controlling a hydraulic motor (5) for driving a slewing gear of a crane superstructure, wherein the pressure lines (3.9, 3.10) for the hydraulic motor (5) are connected by means of a supply piston (3.2) to a hydraulic pump (2) or a tank (1), and the pressure lines (3.9, 3.10) are each assigned pilot valves (3.4, 3.3), shuttle valves (3.8, 3.7) and directional control valves (3.6, 3.5). The shuttle valves (3.7, 3.8) are connected by means of control lines (3.11, 3.12) to an activatable proportional pilot valve (6), such that the separately activatable directional control valves (3.5, 3.6) can thus be activated by means of said pressure, which is built up by the pilot valve (6).

    摘要翻译: 一种用于控制驱动装置的液压系统的过度控制的液压控制回路,特别是用于控制用于驱动起重机上部结构的回转齿轮的液压马达(5),其中液压马达的压力线(3.9,3.10) 5)通过供应活塞(3.2)连接到液压泵(2)或油箱(1),并且压力管路(3.9,3.10)各自分配先导阀(3.4,3.3),梭阀( 3.8,3.7)和方向控制阀(3.6,3.5)。 梭阀(3.7,3.8)通过控制管线(3.11,3.12)连接到可激活的比例先导阀(6),使得可单独激活的方向控制阀(3.5,3.6)能够通过 所述压力由先导阀(6)构成。