公开(公告)号：US5865327A

公开(公告)日：1999-02-02

申请号：US971333

申请日：1992-11-04

申请人： Roger L. Johnston

发明人： Roger L. Johnston

IPC分类号： B66C19/02 ,  B66C23/693 ,  B66B11/00

CPC分类号： B66C19/02

摘要： A hydraulic boom gantry and a method of lifting a load associated therewith. The gantry includes telescoping sections with a hydraulic cylinder mounted therein. A swiveling plate structure allows minor deviation between sets of telescoping sections. A collar structure and a pinning structure lock the telescoping sections together. A cam mechanism prevents accidental section retraction and a powered rigging device traverses a beam connecting the telescoping sections.

摘要翻译： 一种液压动臂机架及提升与其相关的负载的方法。 龙门架包括安装有液压缸的伸缩部分。 旋转板结构允许伸缩部分组之间的轻微偏差。 套环结构和钉扎结构将伸缩部分锁定在一起。 凸轮机构防止意外部分回缩，并且动力索具装置穿过连接伸缩部分的梁。

公开(公告)号：US5624046A

公开(公告)日：1997-04-29

申请号：US388808

申请日：1995-02-15

申请人： Horst Zimmermann

发明人： Horst Zimmermann

IPC分类号： B66C23/687 ,  B66C23/693 ,  B66C23/70 ,  B66F9/06 ,  B66F11/04 ,  B66C23/04 ,  B65B63/04

CPC分类号： B66C23/708

摘要： A telescopic rod composed of a plurality of tubular rod sections which are mounted so as to be slidable within each other includes a multistage piston-cylinder unit which is arranged within the telescopic rod and is connected to the outermost rod section of the telescopic rod and to the last inner rod section of the telescopic rod. Locking bars are provided in the areas of the inner end faces of individual sections, wherein the locking bars are displaceable in a direction transversely of the longitudinal direction of the rod sections and wherein the locking bars can be placed in operative engagement with the respectively adjacent outer rod section. When the rod sections of the telescopic rod are in the extended end position, the locking bar of each inner rod section engages in a positively locking manner in an opening of the respectively outer adjacent rod section. Spring-biased clamps are provided on the outer sides of the rod sections located between the outermost rod section and the innermost rod section. When the telescopic rod is pushed together, the clamps grasp in a positively engaging manner bolts arranged at the end faces of the inwardly following rod sections.

摘要翻译： 由能够彼此滑动安装的多个管状杆部构成的伸缩杆包括多级活塞 - 气缸单元，该多级活塞 - 气缸单元布置在伸缩杆内并连接到伸缩杆的最外侧的杆部分，并且 伸缩杆的最后一个内杆部分。 锁定杆设置在各个部分的内端面的区域中，其中锁定杆可以在横向于杆部分的纵向方向的方向上移动，并且其中锁定杆可以被放置成与相应的相邻的外部 杆段。 当伸缩杆的杆段处于延伸端位置时，每个内杆部分的锁定杆以正向锁定的方式接合在相邻的外部相邻杆部分的开口中。 弹簧偏置的夹具设置在位于最外侧的杆部和最内侧的杆部之间的杆部的外侧。 当伸缩杆被推在一起时，夹具以正向接合的方式抓住布置在向后随杆的端面处的螺栓。

公开(公告)号：US4352434A

公开(公告)日：1982-10-05

申请号：US145529

申请日：1980-05-01

申请人： Darwin N. Poock

发明人： Darwin N. Poock

IPC分类号： B66C23/26 ,  B66C23/687 ,  B66C23/693 ,  B66C23/70 ,  B66C23/82 ,  B66C23/00

CPC分类号： B66C23/82 ,  B66C23/701

摘要： A crane with a telescopic extensible boom is disclosed. Two cylinders within the boom are each connected between adjacent sections for relative movement between the sections. Pendants are trained over sheaves on a live mast, and one end of the pendants is held by a stop on the mast. The other end of the pendants is received in the boom over sheaves mounted in fixed relation to the respective crane sections. The opposite end of the pendants is connected to the base section of the boom.

摘要翻译： 公开了具有可伸缩伸缩臂的起重机。 悬臂内的两个气缸各自连接在相邻部分之间，用于各部分之间的相对运动。 吊坠在活桅杆上被训练在滑轮上，吊坠的一端由桅杆上的一个挡块保持。 吊坠的另一端被接收在悬臂上，并以固定的关系安装在相应的起重机部分上。 吊坠的另一端连接到吊杆的基部。

公开(公告)号：US4125974A

公开(公告)日：1978-11-21

申请号：US813798

申请日：1977-07-08

申请人： Christopher G. Kay ,  Robert A. Fritsch

发明人： Christopher G. Kay ,  Robert A. Fritsch

IPC分类号： B66C23/687 ,  B66C23/42 ,  B66C23/68 ,  B66C23/693 ,  B66C23/70 ,  E02F3/00 ,  F15B11/20

CPC分类号： B66C23/705

摘要： An electro-hydraulic control system to enable either simultaneous extension or retraction of all boom sections in a telescopic crane boom or independent extension or retraction of one or more individual boom sections comprises a valve assembly, including solenoid-operated extend and retract valves, on each boom section cylinder; a manually operable three-position (neutral, extend, retract) main control valve for connecting the valve assemblies to a pressurized fluid source and to a reservoir; a relay for energizing all solenoid valves simultaneously when the main control valve is operated to extend or retract positions to thereby effect simultaneous extension or retraction, respectively, of all boom sections; and manually actuatable selector switches, one for each movable boom section, which, when any one selector switch is actuated while the main valve is operated, override the relay and energize only the solenoid valves in a selected valve assembly thereby enabling independent extension or retraction of a selected boom section.

摘要翻译： 一个电动液压控制系统能够在伸缩式起重机吊臂上同时延伸或缩回所有起重臂部分，或者一个或多个单独的悬臂部分的独立延伸或缩回，包括在每一个上包括电磁操作的延伸和缩回阀的阀组件 动臂段气缸; 用于将阀组件连接到加压流体源和储存器的可手动操作的三位置（中性，延伸，缩回）主控制阀; 当主控制阀操作以延伸或缩回位置时，分别对所有电磁阀通电的继电器，从而分别实现所有起重臂段的同时伸缩; 和可手动致动的选择开关，每个活动悬臂部分一个，当在主阀操作时任何一个选择器开关被致动时，超控继电器并且仅为选定的阀组件中的电磁阀通电，从而使得能够独立地延伸或缩回 选定的吊杆部分。

公开(公告)号：US4016688A

公开(公告)日：1977-04-12

申请号：US581172

申请日：1975-05-27

申请人： Joseph B. Tiffin ,  Daniel G. Quinn ,  Evart J. Vroonland

发明人： Joseph B. Tiffin ,  Daniel G. Quinn ,  Evart J. Vroonland

IPC分类号： B66C23/687 ,  B66C23/693 ,  B66C23/697 ,  B66C23/70 ,  B66C23/04

CPC分类号： B66C23/701 ,  B66C23/705

摘要： An extensible cantilever boom assembly, for a mobile crane, has telescopically interfitting box-like boom sections, that include web or side plates of uniform thickness. These plates are shaped to provide increased stiffness, and openings are provided within some of the plates to reduce the plate weight, so that the load carrying capacity of the boom is increased. A plurality of shaped portions are formed within the plates, at locations intermediate the top edges and the bottom edges of the plates. These plate portions are spaced laterally from the parallel planes that define the side surfaces of the plates, at the junctures of the side surfaces with the top and bottom edges. The shaped portions, located at longitudinally spaced intervals, are aligned in a row that extends longitudinally of the plate. Each shaped portion has a regular geometrical pattern that forms a laterally projecting protuberance on one side of the plate and a corresponding depression on the opposite side of the plate.

摘要翻译： 用于移动式起重机的可伸缩悬臂组件具有可伸缩的相互连接的箱状悬臂部分，其包括均匀厚度的腹板或侧板。 这些板被成形为提供增加的刚度，并且在一些板中提供开口以减小板重量，使得吊杆的承载能力增加。 在板的顶部边缘和底部边缘之间的位置处，在板内形成多个成形部分。 这些板部分在与顶部和底部边缘的侧表面的接合处与限定板的侧表面的平行平面横向隔开。 位于纵向间隔开的成形部分沿着板的纵向延伸的一排排列。 每个成形部分具有规则的几何图案，其在板的一侧上形成横向突出的突起，并且在板的相对侧上形成相应的凹陷。

公开(公告)号：US3997062A

公开(公告)日：1976-12-14

申请号：US341231

申请日：1973-03-14

申请人： Donald Hassall

发明人： Donald Hassall

IPC分类号： F15B11/22 ,  B66C23/687 ,  B66C23/693 ,  B66C23/70 ,  B66C23/64

CPC分类号： B66C23/701

摘要： Synchronizer apparatus is provided in or for multi-section telescopic jibs comprising travel sensors each to be carried by a moveable jib section in at least one group of at least three sections, one of the sensors being adapted for interconnection with two travel sensors carried one by each of two other sections in the group for sensing disproportionate travel of one moveable section relative to travel of a further section with respect to another section, a signal device actuable by the sensors of each group and operative means for connecting the signal device to a power transmission valve associated with rams respectively operatively connected to the said one and said further moveable sections for controlling the travel of at least one of them to remove any disproportionate travel.

摘要翻译： 同步器装置设置在或用于多部分伸缩臂，包括行进传感器，每个移动传感器由至少一组至少三个部分中的可动臂部分承载，其中一个传感器适于与两个行进传感器互连， 组中的两个其他部分中的每一个用于感测一个可移动部分相对于另一部分相对于另一部分的行进的不成比例的行进，每个组的传感器可致动的信号装置和用于将信号装置连接到电力的操作装置 传输阀与分别可操作地连接到所述一个和所述另外的可移动部分的公柱相关联，用于控制其中的至少一个的移动以去除任何不成比例的行进。

公开(公告)号：US3837502A

公开(公告)日：1974-09-24

申请号：US34001873

申请日：1973-03-12

申请人： BUCYRUS ERIE CO

发明人： HORNAGOLD J

IPC分类号： B66C23/687 ,  B66C23/693 ,  B66C23/70 ,  B66C23/04

CPC分类号： B66C23/705 ,  B66C23/707

摘要： A truck mounted crane has a three-part, extensible boom in which telescopic motion is accomplished by a pair of extension cylinders contained within the boom. Frictional forces between the slidably mounted boom sections are minimized by improved pad assemblies positioned at selected bearing points. Support members in the form of rollers are positioned within the boom immediately above the lower extension cylinder to not only prevent the extension cylinder from buckling under full load conditions, but to support the outer boom section when it is retracted inward. The result is a reduction in the size and weight of the extension cylinders and a consequent reduction in boom weight.

摘要翻译： 卡车起重机具有三部分可伸缩起重臂，其中伸缩运动由包含在起重臂内的一对延伸缸完成。 可滑动安装的悬臂部分之间的摩擦力通过位于选定的轴承点处的改进的垫组件来最小化。 滚筒形式的支撑构件位于下延伸圆柱体正上方的动臂内，不仅可防止延伸液压缸在满载条件下屈曲，而且能够在向外缩回时支撑外悬臂部分。 结果是减小了延伸缸的尺寸和重量，并因此降低了吊杆重量。

公开(公告)号：US3830376A

公开(公告)日：1974-08-20

申请号：US33337673

申请日：1973-02-16

申请人： HARNISCHFEGER CORP

发明人： FRITSCH R

IPC分类号： B66C23/687 ,  B66C23/693 ,  B66C23/697 ,  B66C23/70 ,  B66C23/62

CPC分类号： B66C23/702 ,  B66C23/707

摘要： A mobile crane comprises a multisection telescopic boom and an optionally usable multisection telescopic lattice type jib (having a base section and axially movable intermediate and fly sections) which when not in use is telescoped and stored on a support in parallel reverse disposition alongside the boom. Each jib section comprises four hollow tubular longitudinal members (each of rectangular cross section) arranged in parallel spaced apart relationship with a plurality of angularly disposed tubular cross braces connected between each pair of members to define a jib section of rectangular cross section. Each longitudinal member is rotated on its axis to present opposite inwardly and outwardly facing flat bearing surfaces and also to present two other opposite flat surfaces to which the ends of the cross braces are welded. Bearing means are provided to facilitate relative sliding motion and to transmit thrust forces between adjacent jib sections. The bearing means comprises inwardly facing slide pads mounted at the lower front ends of the base and intermediate sections and outwardly facing slide pads mounted at the upper and lower rear ends of the intermediate and fly sections; each slide pad being mounted on a support secured within the hollow end of a tubular longitudinal member and engaged with an appropriate bearing surface on an adjacent jib section. To unstore the jib and set it up for use, the foot end of the jib is releasably connected by pivot pin means to the point end of the boom and the boom is partially extended to axially move the jib forward clear of its support. At this stage the unextended jib may be swung 180* about the pivot pin means into axial alignment with the boom and rigidly secured thereto by suitable attachment means. Or, the jib may be partially or fully extended prior to being swung 180* by connecting either the jib intermediate section or the jib fly section, respectively, by releasable rear pin means to the boom base section and by then further extending the boom, either partially or fully, respectively. In all cases, prior to swinging the jib, a guy wire jib mast pivotally attached to the boom point and folded back alongside the boom is swung into upright position. The jib is designed so that it can be rigidly connected at an angle to the boom axis and so that the jib fly section can be rigidly connected at an angle to the jib axis.

公开(公告)号：US3670465A

公开(公告)日：1972-06-20

申请号：US3670465D

申请日：1970-04-21

申请人： PPM SA

发明人： CHEZE BERNARD J

IPC分类号： B66C23/697 ,  B66C23/693 ,  B66C23/70 ,  E04H12/34

CPC分类号： B66C23/708

摘要： This invention relates to a locking device for a telescopic jib constituted by at least three sections and by a motive member connected between the first and second sections, and comprising at least one bolt capable of integrating the second and third sections in their relative end positions, wherein this bolt is arranged on the rear end of the third section and may be selectively inserted into at least three catches, said catches being respectively unitary with the rear end of the second section, with an element unitary with the first section and with the front end of the second section, whilst the second catch is arranged near the front end of the first section.

摘要翻译： 本发明涉及一种用于由至少三个部分构成的伸缩臂的锁定装置，以及连接在第一和第二部分之间的动力构件，并且包括至少一个能够使第二和第三部分相对于其相对端部位置整合的螺栓， 其中该螺栓设置在第三部分的后端上，并且可以选择性地插入至少三个卡爪中，所述卡爪与第二部分的后端分别成一体，其元件与第一部分一体并且与前部 第二部分的端部，而第二个捕捉点设置在第一部分的前端附近。

公开(公告)号：US3477588A

公开(公告)日：1969-11-11

申请号：US3477588D

申请日：1967-04-06

申请人： BUCYRUS ERIE CO

发明人： REISCHL KARL E

IPC分类号： B63B27/36 ,  B66C13/02 ,  B66C13/18 ,  B66C23/693 ,  B66C23/70 ,  B66C23/86 ,  B66C23/06 ,  B66C23/62 ,  B66C23/84

CPC分类号： B66C23/86 ,  B66C13/02 ,  B66C13/18 ,  B66C23/705