公开(公告)号：US09791071B2

公开(公告)日：2017-10-17

申请号：US13789151

申请日：2013-03-07

申请人： Oshkosh Corporation

发明人： McKenzie M. Ditty ,  Matthew G. Wilson

IPC分类号： F16L3/015 ,  B66F11/04 ,  B66C13/12 ,  B66C23/70

CPC分类号： F16L3/015 ,  B66C13/12 ,  B66C23/705 ,  B66F11/046

摘要： A boom assembly for a lift device includes a plurality of telescoping boom sections. The plurality of telescoping boom sections include a base boom section, a mid boom section, and a fly boom section. The plurality of telescoping boom sections define an inner volume. The boom assembly also includes a push tube coupled to the base boom section and a support member positioned within the inner volume. The support member includes sidewalls having an inner surface and an outer surface. The boom assembly also includes a power track positioned within the inner volume that includes a plurality of movable links, a first supported portion that interfaces with at least one of the inner surface of the support member and a surface of the push tube, and a second supported portion that interfaces with the outer surface of the support member.

公开(公告)号：US09718655B2

公开(公告)日：2017-08-01

申请号：US14018765

申请日：2013-09-05

申请人： Palfinger AG

发明人： Eckhard Wimmer

IPC分类号： B66C23/70 ,  B66C23/00 ,  F15B11/20 ,  F15B13/07 ,  B66C23/42

CPC分类号： B66C23/705 ,  B66C23/42 ,  B66C23/54 ,  F15B11/205 ,  F15B13/07

摘要： A hydraulically actuatable jib for a loading crane includes at least two jib extensions, the first jib extension being designed as an outer jib extension and the second jib extension being designed as an inner jib extension. At least two feed cylinders extend and react the at least two jib extensions. A hydraulic circuit for a working fluid includes a retraction line for retracting the feed cylinders in a pressurized manner, and the retraction line opens into the feed cylinder of the outer jib extension. A tank is provided for releasing the working fluid, and a control valve can be switched into an open position when the outer jib extension reaches a defined retraction position, particularly when the outer jib extension is substantially fully retracted. The valve thereby supplies the feed cylinder of the inner jib extension with pressurized working fluid.

公开(公告)号：US20160289050A1

公开(公告)日：2016-10-06

申请号：US15186403

申请日：2016-06-17

申请人： Xuzhou Heavy Machinery Co., Ltd.

发明人： Junfei Chai ,  Huapeng Cui ,  Hongmin Zhang ,  Lei Li ,  Cuiping Wang

IPC分类号： B66C23/70 ,  F15B13/044 ,  F15B11/08 ,  F15B13/04 ,  B66C15/00 ,  B66C13/20

CPC分类号： B66C23/705 ,  B66C13/20 ,  B66C15/00 ,  F15B11/08 ,  F15B13/0401 ,  F15B13/044 ,  F15B2211/426

摘要： An apparatus for a crane comprises a large-cavity pressure sensor, a small-cavity pressure sensor, a controller, a telescopic oil cylinder, and a telescopic oil cylinder regulator. The large-cavity pressure sensor can measure the oil pressure in a large cavity of the telescopic oil cylinder. The small cavity pressure sensor can measure the oil pressure in a small cavity of the telescopic oil cylinder. The controller can control an output electrical signal according to a large-cavity oil pressure fed back by the large-cavity pressure sensor and a small-cavity oil pressure fed back by the small-cavity pressure sensor, and, by means of the electrical signal, control a change of the amount of hydraulic oil flowing into and out of the large cavity and the small cavity of the telescopic oil cylinder so as to regulate the oil pressures in the large cavity and the small cavity.

摘要翻译： 一种用于起重机的设备包括大腔压力传感器，小腔压力传感器，控制器，伸缩油缸和伸缩油缸调节器。 大型腔压力传感器可以测量伸缩油缸大腔内的油压。 小型腔压力传感器可以测量伸缩油缸的小腔中的油压。 控制器可以根据由大腔压力传感器反馈的大腔油压和由小腔压力传感器反馈的小腔油压来控制输出电信号，并通过电信号 控制流入和流出伸缩油缸的大腔和小腔的液压油量的变化，以调节大腔和小腔中的油压。

公开(公告)号：US20160200555A1

公开(公告)日：2016-07-14

申请号：US14914643

申请日：2014-04-27

申请人： XUZHOU HEAVY MACHINERY CO., LTD.

发明人： Zenghai Shan ,  Quan Dong ,  Yongjian Deng ,  Xin Zhang ,  Mengbing Zhu ,  Xiaohui Wang ,  Chenglin Xiao ,  Yuchun Zhao

IPC分类号： B66C23/70

CPC分类号： B66C23/706 ,  B66C23/705 ,  B66C23/708

摘要： The present invention relates to a single-cylinder plug pin type telescopic arm, a crane and a telescopic method thereof. The single-cylinder plug pin type telescopic arm includes a basic arm and at least one telescopic arm sleeved in the basic arm, wherein coaxial center holes are formed in the tails of the telescopic arms, and a telescopic oil cylinder is arranged in the center holes; the telescopic oil cylinder includes a cylinder rod and a cylinder barrel, at least two cylinder heads are fixedly sleeved on the outer side of the cylinder barrel in the longitudinal direction, and at least three arm pin holes are formed in each of the basic arm and the telescopic arms in the longitudinal direction. The single-cylinder plug pin type telescopic arm provided by the present invention adopts one telescopic oil cylinder and at least two cylinder heads, each cylinder head is adapted to lock and unlock the telescopic oil cylinder and any telescopic arm, the telescopic arms are extended out or retracted in a relay transmission manner to achieve the extension and retraction of the single-cylinder plug pin type telescopic arm, the length of the oil cylinder is shortened, the cylinder diameter and the rod diameter of the oil cylinder are decreased, the cost of the oil cylinder is lowered, the upperstructure weight is reduced, the lifting capacity is improved, and there are more crane design spaces.

摘要翻译： 本发明涉及单缸塞销式伸缩臂，起重机及其伸缩方法。 单缸塞销式伸缩臂包括基本臂和至少一个套在基本臂中的伸缩臂，其中同轴中心孔形成在伸缩臂的尾部中，并且伸缩油缸布置在中心孔中 ; 伸缩油缸包括气缸杆和气缸筒，至少两个气缸盖沿纵向固定地套在气缸筒的外侧上，并且至少三个臂销孔形成在每个基本臂和 伸缩臂在纵向上。 本发明提供的单缸塞销式伸缩臂采用一个伸缩油缸和至少两个气缸盖，每个气缸盖适用于锁定和解锁伸缩油缸和任何伸缩臂，伸缩臂伸出 或以继电器传输方式缩回，实现单缸插销式伸缩臂的伸缩，油缸长度缩短，油缸直径和油缸直径降低，成本 油缸下降，上部结构重量减小，提升能力提高，起重机设计空间更大。

公开(公告)号：US09376292B2

公开(公告)日：2016-06-28

申请号：US13994383

申请日：2011-12-16

申请人： Alexander Knecht ,  Peter Kleinhans ,  Tobias Ebinger ,  Andreas Hofmann ,  Martin Lottes

发明人： Alexander Knecht ,  Peter Kleinhans ,  Tobias Ebinger ,  Andreas Hofmann ,  Martin Lottes

IPC分类号： B66C23/04 ,  B66C23/70 ,  B66C23/36 ,  B66C23/42

CPC分类号： B66C23/701 ,  B66C23/36 ,  B66C23/42 ,  B66C23/705 ,  B66C23/707 ,  B66C23/708

摘要： A mobile telescopic crane has a telescopic jib with at least four part-jibs. Each of the part-jibs is constructed from at least two part-jib portions so as to be telescopic in a longitudinal direction. Part-jib portions arranged at a spacing from one another transverse to the longitudinal direction each form a jib portion with at least one flexurally rigid connecting element. A construction of this type of the jib means that an increase in the bearing load is easily achieved by increasing the area moment of inertia of the jib.

摘要翻译： 移动式伸缩起重机具有至少有四个部分臂的伸缩臂。 每个副部分由至少两个部分臂部构成，以便在纵向方向上伸缩。 以横向于纵向方向彼此间隔布置的部分起重臂部分各自形成具有至少一个弯曲刚性连接元件的起重臂部分。 这种类型的起重臂的结构意味着通过增加起重臂的面积惯性矩容易地实现轴承载荷的增加。

公开(公告)号：US09068401B2

公开(公告)日：2015-06-30

申请号：US13585366

申请日：2012-08-14

申请人： Greg Wiedmer ,  Thomas Edwin Mau ,  Robert Eugene Mau

发明人： Greg Wiedmer ,  Thomas Edwin Mau ,  Robert Eugene Mau

IPC分类号： B66C23/06 ,  B66C23/62 ,  E04H12/34 ,  E04H12/00 ,  E21B15/00 ,  E21B7/02 ,  B66C23/70 ,  E04H12/18

CPC分类号： E21B15/00 ,  B66C23/701 ,  B66C23/705 ,  B66C23/707 ,  E04H12/182 ,  E21B7/023

摘要： A reinforced workover rig mast (40) is disclosed. A top section (60) of the mast (40) telescopes relative to a mid section (44), and includes a scoping cylinder area (72) for receiving a scoping cylinder (90) that may be used to extend and retract the top section (60). A number of external gussets (78) are located within this scoping cylinder area (72) to structurally reinforce the upper section (60). Other reinforcement features are incorporated by the mast (40) as well, including an increased width and depth, along with a reduced vertical spacing between adjacent cross supports (50b, 66b, 74).

摘要翻译： 公开了一种加固修井机桅杆（40）。 桅杆（40）的顶部部分（60）相对于中间部分（44）伸缩，并且包括用于接收示范圆筒（90）的示范圆筒区域（72），所述示范圆筒区域可用于将顶部部分 （60）。 多个外部角撑板（78）位于该示范性气缸区域（72）内，以在结构上加强上部部分（60）。 其他增强特征也包括桅杆（40），包括增加的宽度和深度以及相邻的横向支撑件（50b，66b，74）之间的减小的垂直间隔。

公开(公告)号：US20150144583A1

公开(公告)日：2015-05-28

申请号：US14549154

申请日：2014-11-20

申请人： TADANO LTD.

发明人： Naoyuki MATSUMOTO

IPC分类号： B66C23/70

CPC分类号： B66C23/705 ,  B66F9/22

摘要： There is provided a boom extending and retracting apparatus that can improve the convenience of the telescopic boom while reducing the burden on the operator. The boom extending and retracting apparatus of the crane chooses the mode of the fluid circuit between the normal fluid circuit and the differential fluid circuit to slide a plurality of boom members by one telescopic cylinder. After the operating lever is turned to an extension side and the controller starts extending the telescopic boom using the differential fluid circuit, when the operating lever is turned to the extension side again via the neutral position, the controller chooses the normal fluid circuit to extend the telescopic boom using the normal fluid circuit.

摘要翻译： 提供了一种能够在减轻操作者负担的同时提高伸缩臂的便利性的起重臂伸缩装置。 起重机的起重臂伸缩装置选择正常流体回路和差动流体回路之间的流体回路的模式，以通过一个伸缩缸来滑动多个悬臂件。 在操作杆转到延伸侧并且控制器使用差动流体回路开始延伸伸缩臂时，当操作杆经由中间位置再次转动到延伸侧时，控制器选择正常的流体回路来延伸 伸缩臂使用正常流体回路。

公开(公告)号：US20150060385A1

公开(公告)日：2015-03-05

申请号：US14457885

申请日：2014-08-12

申请人： TADANO LTD.

发明人： Masanori MATSUDA ,  Kazu NAGAHAMA

IPC分类号： B66C23/70

CPC分类号： B66C23/705 ,  B66C23/708

摘要： A boom extension and contraction mechanism for a crane apparatus includes: a flow passage switching mechanism that switches a flow passage of the hydraulic oil between the cylinder-to-boom connection switching cylinder side and the boom member connection switching cylinder side; a hose reel configured to reel out a hydraulic hose as a telescopic cylinder is extending, and to reel off the hydraulic hose as the telescopic cylinder is contracting; a cable used to supply power and transmit a signal between a swivel base and a boom; and a cord reel configured to reel out the cable as the telescopic cylinder is extending and to reel off the cable as the telescopic cylinder is contracting. The code reel and the hose reel are arranged on the base in a direction in which the boom extends and contracts.

摘要翻译： 用于起重机装置的起重臂延伸和收缩机构包括：一个流路切换机构，用于切换在气缸与动臂连接切换气缸侧和悬臂件连接切换气缸侧之间的液压油的流路; 构造成当伸缩筒伸出液压软管的软管卷轴延伸，并且当伸缩筒收缩时卷绕液压软管; 用于在旋转底座和吊杆之间提供动力和传递信号的电缆; 以及绳索卷轴，其构造成当伸缩筒延伸时卷出缆线，并且随着伸缩筒收缩而卷绕电缆。 编码卷轴和软管卷盘沿着吊杆延伸和收缩的方向布置在基座上。

公开(公告)号：US20150008205A1

公开(公告)日：2015-01-08

申请号：US14322136

申请日：2014-07-02

申请人： Liebherr-Werk Ehingen GmbH

发明人： Hans-Dieter Willim ,  Herbert Laible

IPC分类号： B66C23/70

CPC分类号： B66C23/701 ,  B66C23/705 ,  B66C23/707 ,  B66C23/708

摘要： The invention relates to a method of assembling a crane having a telescopic boom which has a coupling section, a telescopic cylinder supported therein and at least one telescopic section, wherein at least one telescopic section is transported to the site of deployment separately from the coupling section and the at least one separately moved telescopic section is drawn, in particular drawn slowly, into an outer section, in particular into the coupling section, in the assembly position by the telescopic cylinder by means of an auxiliary assembly head.

摘要翻译： 本发明涉及一种组装起重机的方法，所述起重机具有伸缩臂，其具有连接部分，支撑在其中的伸缩筒和至少一个伸缩部分，其中至少一个伸缩部分与所述联接部分分开运送到展开部位 并且所述至少一个单独移动的伸缩部分通过辅助组装头被拉伸筒体拉伸，特别是缓慢地拉入外部部分，特别是拉入联接部分。

公开(公告)号：US20140346132A1

公开(公告)日：2014-11-27

申请号：US14270680

申请日：2014-05-06

申请人： TADANO LTD.

发明人： Shogo SEKI ,  Toshiyuki MIYAJIMA

IPC分类号： B66C23/68

CPC分类号： B66C23/68 ,  B66C23/705

摘要： A telescopic boom provided in a crane includes a boom body and a telescopic cylinder for extending/contracting the boom body. A roller is provided in a tip end portion of the telescopic cylinder to be rotatable in a longitudinal direction. A peripheral surface of the roller is formed to be curved (crowning) in a convex shape outside as viewed in the longitudinal direction and make contact with a lower plate of the boom body in a state where both corner parts are away from the lower plate.

摘要翻译： 设置在起重机中的伸缩臂包括悬臂主体和用于延伸/收缩吊杆主体的伸缩缸。 在所述伸缩筒的前端部设置有能够在长度方向上旋转的辊。 辊的周面形成为在纵向方向上呈外侧弯曲（隆起），并且在两个角部远离下板的状态下与臂本体的下板接触。