Hydraulically operated clam bucket with improved force transferring
arrangement
    1.
    发明授权
    Hydraulically operated clam bucket with improved force transferring arrangement 失效
    具有改进的力传递装置的液压操作蛤桶

    公开(公告)号:US5228735A

    公开(公告)日:1993-07-20

    申请号:US780609

    申请日:1991-10-23

    IPC分类号: B66C3/16 E02F3/47

    CPC分类号: E02F3/47 B66C3/16

    摘要: A hydraulically operated clamshell bucket including left and right bucket halves pivotally supported by a bucket carrier. The bucket halves are opened and closed by the operation of a hydraulic cylinder in cooperation with a compensation link. The clamshell bucket provides an improved structural arrangement for transmitting the force from the hydraulic cylinder to the cutting edges of the bucket halves in that for a given size and rated bucket, the weight of the bucket may be reduced along with the complexity and manufacturing cost of the bucket.

    摘要翻译: 一种液压操作的翻盖式铲斗,其包括由铲斗式托架枢转地支撑的左右两侧的铲斗半部。 通过与补偿连杆协作的液压缸的操作来打开和关闭铲斗二分之一。 蛤壳式铲斗提供了一种改进的结构布置,用于将力从液压缸传递到铲斗半部的切割边缘,因为对于给定尺寸和额定铲斗,铲斗的重量可能随着复杂性和制造成本而降低 桶。

    Steerable concentric ring segment supported lift crane
    3.
    发明授权
    Steerable concentric ring segment supported lift crane 失效
    可转向同心环段支撑起重机

    公开(公告)号:US4601402A

    公开(公告)日:1986-07-22

    申请号:US259932

    申请日:1981-05-04

    CPC分类号: B66C23/36 B66C23/74 B66C23/84

    摘要: Front and rear pairs of crawler assemblies are provided for supporting concentric ring segments disposed forwardly under the boom and rearwardly under the counterweight so the crane can travel under load and swing through at least a partial horizontal arc. One and preferably both crawler assemblies are selectively and reversely powered to facilitate forward and reverse as well as turning movement during travel under loaded and unloaded conditions. The inner ring segment is at least partially surrounded by a rotatable cage structure which provides a connection point for a frame element extending to the forwardly disposed crawler assembly to permit independent steering of the rear crawler assembly.

    摘要翻译: 提供了前后的成对的履带组件用于支撑在悬臂下面向前并配置在配重下方的同心环段,使得起重机能够在负载下行进并且通过至少部分水平弧摆动。 一个并且优选地,两个履带组件被选择性地和反向地供电以便于在加载和卸载条件下行进期间的前进和倒退以及转动运动。 内环段至少部分地被可旋转的笼结构包围,该笼结构提供了延伸到向前布置的履带组件的框架元件的连接点,以允许后履带组件的独立转向。

    Quick release mounting for a turntable bearing
    4.
    发明授权
    Quick release mounting for a turntable bearing 失效
    用于转盘轴承的快速安装

    公开(公告)号:US4391477A

    公开(公告)日:1983-07-05

    申请号:US327883

    申请日:1981-12-07

    摘要: A turntable bearing device having a quick release mounting including inner and outer ball bearing races with the inner race fixed to the lower works and the outer race is detachably connected to the upper works of a load handling device. Gear teeth are provided along the inner circumference of the inner race to engage a pinion gear of the upper works. The quick release feature includes an arcuate beam which is slidably carried on support rails and engages the outer bearing race on one side while a latching means is provided to engage the outer bearing race on its opposite side. The arcuate beam and the latching means prevent rocking or tipping motion of the upper works during machine operation as well as providing the quick release means.

    摘要翻译: 具有快拆装置的转盘轴承装置可拆卸地连接到负载处理装置的上部工件上,该内装和外滚珠轴承座具有固定在下部工件上的内圈和外圈。 沿着内圈的内圆周设置齿轮齿以接合上部工件的小齿轮。 快速释放特征包括弧形梁,其可滑动地承载在支撑轨道上并且在一侧接合外部轴承座圈,同时提供闩锁装置以在其相对侧上接合外部轴承座圈。 弧形梁和闩锁装置防止机器操作期间上部工作的摇摆或倾翻运动以及提供快速释放装置。

    Traveling attachment for ring supported lift crane
    5.
    发明授权
    Traveling attachment for ring supported lift crane 失效
    环支起重机的行走附件

    公开(公告)号:US4387814A

    公开(公告)日:1983-06-14

    申请号:US344388

    申请日:1982-02-01

    IPC分类号: B66C23/62 B66C23/84 B66C23/78

    CPC分类号: B66C23/62 B66C23/84

    摘要: A traveling attachment including two pairs of crawler assemblies and frame elements are provided for interconnection to the ring of a ring supported crane so the crane can travel under load. The crawler assemblies may be pivotally mounted and reversely and independently powered to facilitate turning.

    摘要翻译: 提供了包括两对履带组件和框架元件的行进附件,用于与环支承起重机的环相互连接,使得起重机能够承受负载。 履带组件可枢转地安装并反向并且独立地供电以便于转动。

    Hoist drum drive control
    6.
    发明授权
    Hoist drum drive control 失效
    提升鼓驱动控制

    公开(公告)号:US4136855A

    公开(公告)日:1979-01-30

    申请号:US747331

    申请日:1976-12-03

    IPC分类号: B66D1/44 B66D1/30

    CPC分类号: B66D1/44

    摘要: A hoist drum drive control is provided with both variable displacement and fixed displacement motors geared to the drum and connected in parallel to a variable displacement pump. During high speed hoisting the variable displacement motor is shifted to zero displacement until the back pressure reaches a certain level at which time the displacement is automatically increased until a balanced condition is achieved. When lowering heavy loads a feedback to the variable pump decreases its displacement to prevent over speeding the engine.

    摘要翻译: 提升卷筒驱动控制装置配备有可变容量和固定容积电动机,其适用于滚筒并与可变排量泵并联连接。 在高速提升期间,可变排量马达移动到零位移,直到背压达到一定水平,此时位移自动增加,直到达到平衡状态。 当降低重负荷时,反馈给变量泵减小其位移,以防止发动机过速。

    Apparatus for raising & lowering a mast and boom on a mobile crane
    7.
    发明授权
    Apparatus for raising & lowering a mast and boom on a mobile crane 失效
    用于在移动式起重机上升高和降低桅杆和起重臂的装置

    公开(公告)号:US4050586A

    公开(公告)日:1977-09-27

    申请号:US625197

    申请日:1975-10-23

    IPC分类号: B66C23/36 B66C23/74 B66C23/54

    CPC分类号: B66C23/36 B66C23/74

    摘要: A self-erecting mast and boom for a lift crane including self-storing mast cylinders for erecting the mast and rotating a pivoted boom carrier into position to receive the boom which may then be raised by the boom hoist mechanism of the crane. A back hitch assembly including hydraulic cylinders is employed to initially raise the mast and the gantry members which may be lowered into horizontal position to reduce the crane profile for self-propelled transport between job sites.

    摘要翻译: 用于起重机的自立式桅杆和起重机,包括用于竖立桅杆的自储存桅杆缸,并将枢转的吊臂架移动到适当位置,以接收可能由起重机的起重臂起重机构升起的起重臂。 使用包括液压缸的后连接组件来初始地升高桅杆和机架构件,其可以降低到水平位置以减少起重机轮廓,用于在作业位置之间进行自推进的运输。

    Boom stop and back hitch compensating system
    8.
    发明授权
    Boom stop and back hitch compensating system 失效
    动臂停止和后退补偿系统

    公开(公告)号:US4005780A

    公开(公告)日:1977-02-01

    申请号:US630426

    申请日:1975-11-10

    IPC分类号: B66C13/16 B66C23/92 B66C23/00

    CPC分类号: B66C23/92

    摘要: The back hitch assembly for a lift or tower crane includes a tension sensing device which regulates the pressure delivered to the boom stop or hold back cylinders such that as the boom hoist line and back hitch become slack when the load line is relieved more pressure is delivered to the cylinders to counteract the rearward pull on the boom or tower due to the suspended weight of the masts and equalizer assemblies.

    摘要翻译: 用于升降机或塔式起重机的后连接组件包括张力传感装置,其调节传递到悬臂停止件或保持缸的压力,使得当卸载负载线时,吊臂提升机线和后牵引变得松弛,输送更多的压力 由于桅杆和均衡器组件的悬挂重量而与气缸抵消在悬臂或塔上的向后拉动。

    Swing drive assembly
    9.
    发明授权
    Swing drive assembly 失效
    旋转驱动装置

    公开(公告)号:US3949881A

    公开(公告)日:1976-04-13

    申请号:US522787

    申请日:1974-11-11

    IPC分类号: B66C23/86

    CPC分类号: B66C23/86 Y10T74/19623

    摘要: A load handling device is disclosed having an improved swing drive assembly including a pivotally mounted swing drive pinion biased against a segmented ring gear by an actuator with a guide roller adjacent the pinion engaging a guide flange concentric with the ring gear to limit the maximum tooth engagement between the pinion and ring gear and thereby provide essentially constant backlash on the pinion gear regardless of eccentricities or other irregularities in the ring gear.

    Wireless telephone-to-wired telephone system interfacing
    10.
    发明授权
    Wireless telephone-to-wired telephone system interfacing 失效
    无线电话到有线电话系统接口

    公开(公告)号:US06498938B1

    公开(公告)日:2002-12-24

    申请号:US09460164

    申请日:1999-12-13

    IPC分类号: H04Q724

    CPC分类号: H04W88/02 H04M1/725

    摘要: A system for using a personal wireless communications unit or circuit with a wired telephone system is disclosed herein. In one embodiment, the system permits the user to provide telephone communication on a wired telephone system at a home using signal transmissions provided by a cellular phone instead of the conventional telephone lines. The system includes an interface which facilitates connection of the cellular phone to the system.

    摘要翻译: 本文公开了一种使用具有有线电话系统的个人无线通信单元或电路的系统。 在一个实施例中,系统允许用户使用由蜂窝电话提供的信号传输而不是常规电话线路在家庭的有线电话系统上提供电话通信。 该系统包括便于将蜂窝电话连接到系统的接口。