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    • 41. 发明授权
    • Method of connecting crane suspension assembly sections together and frame mounted assembly used therefore
    • 将起重机悬架总成部分连接在一起的框架安装组件的方法
    • US09132999B2
    • 2015-09-15
    • US13348467
    • 2012-01-11
    • David J. PechRobert J. WalkerWilliam J. O'Neil
    • David J. PechRobert J. WalkerWilliam J. O'Neil
    • B66C23/26B66C23/82
    • B66C23/82B66C23/26Y10T29/49Y10T29/49826
    • A method of connecting sections of a crane suspension assembly together includes attaching a frame to a member of a first section; connecting a tension member between the frame and a connector used in the assembly; moving the tension member so that the connector pivots about a pin to a position where a second hole in the connector is in alignment with a hole in a second section member; putting a second pin through the hole in the connector and the hole through the second section member; and disconnecting the tension member from the connector. The method may also include attaching a frame with a winch to a section of the crane suspension assembly; connecting a line from the winch to the connector; activating the winch to move the connector so that it pivots about a pivot axis; and securing the connector in its second position.
    • 一种将起重机悬架组件的部分连接在一起的方法包括将框架附接到第一部分的构件; 在所述框架和所述组件中使用的连接器之间连接张紧构件; 移动所述张紧构件,使得所述连接器围绕销枢转到所述连接器中的第二孔与第二区段构件中的孔对准的位置; 将第二销穿过连接器中的孔并穿过第二部件; 并且将张紧构件与连接器断开连接。 该方法还可以包括将具有绞盘的框架附接到起重机悬架组件的一部分; 将绞线连接到连接器; 启动绞盘以移动连接器,使其绕枢转轴线枢转; 并将连接器固定在其第二位置。
    • 42. 发明授权
    • Crane with boom raising assist structure
    • 起重机起吊辅助结构
    • US08684197B2
    • 2014-04-01
    • US12764734
    • 2010-04-21
    • David J. PechJoseph R. Rucinski
    • David J. PechJoseph R. Rucinski
    • B66C23/82
    • B66C23/348B66C23/36
    • A lift crane includes a carbody; ground engaging members elevating the carbody off the ground; a rotating bed rotatably connected to the carbody; a boom pivotally mounted at a first end to the rotating bed with a load hoist line extending adjacent a second end of the boom; a boom hoist mechanism that can be used to change the angle of the boom relative to the rotating bed during crane operation; and a boom raising assist structure connected to the boom. The boom raising assist structure preferably includes at least one ground engaging member in contact with the ground; and a boom elevating member extending between the assist structure ground engaging member and the boom. The boom elevating member supports at least a part of the weight of the boom.
    • 起重机包括车身; 地面接合构件将车体从地面上升起; 可旋转地连接到车体的旋转床; 在第一端处枢转地安装到旋转床的起重臂,其具有在悬臂的第二端附近延伸的负载提升线; 起重机操作期间可用于改变起重臂相对于旋转床的角度的起重臂升降机构; 以及连接到起重臂的起重臂提升辅助结构。 起重臂提升辅助结构优选地包括与地面接触的至少一个地面接合构件; 以及在所述辅助结构接地构件和所述起重臂之间延伸的吊杆升降构件。 动臂升降构件支撑起重臂的重量的至少一部分。
    • 45. 发明授权
    • Drive tumbler and track drive for mobile vehicles, including lift cranes
    • 驱动滚筒和行车,包括起重机
    • US08075069B2
    • 2011-12-13
    • US12368143
    • 2009-02-09
    • David J. PechJoel D. Zick
    • David J. PechJoel D. Zick
    • B62D55/12
    • B62D55/213B62D55/062B62D55/065B62D55/084B62D55/12B62D55/20B62D55/21B62D55/30B62D55/305B62D55/32Y10T29/49449
    • A combination of a drive tumbler and a track includes a track made of a plurality of connected track shoes and a plurality of driven surfaces. The track is wrapped around the drive tumbler so that a plurality of the shoes are in contact with the drive tumbler. The drive tumbler has a plurality of drive surfaces and a circumferential rim surface that includes a plurality of shoe contact surfaces that each contact the inside surface of one of the track shoes that are in contact with the tumbler. The shoe contact surface has a shape such that a line normal to the tangent of the shoe contact surface does not pass through the axis of rotation of the drive tumbler, thereby allowing the shoe contact surfaces on the rim of the drive tumbler to transmit a tractive force to the track. A preferred drive tumbler comprises a center hub and a plurality of individual tooth members connected to the center hub by welds.
    • 驱动器翻转开关和轨道的组合包括由多个连接的履带板和多个从动表面构成的履带。 轨道缠绕在驱动器翻转开关上,使得多个鞋子与驱动器翻转开关接触。 驱动转鼓具有多个驱动表面和周向边缘表面,其包括多个鞋接触表面,每个鞋接触表面接触与滚筒接触的一个跟踪鞋的内表面。 鞋接触表面具有这样的形状,使得垂直于鞋接触表面的切线的线不穿过驱动制动栓的旋转轴线,从而允许驱动制动栓的轮缘上的鞋接触表面传递牵引 强力到轨道。 优选的驱动翻转开关包括中心毂和通过焊接连接到中心毂的多个单独的齿构件。
    • 46. 发明授权
    • Mobile lift crane with variable position counterweight
    • 具有可变位置配重的移动式起重机
    • US07967158B2
    • 2011-06-28
    • US12023902
    • 2008-01-31
    • David J. PechKenneth J. PorubcanskyAlan E. PleussJohn M. Lanning
    • David J. PechKenneth J. PorubcanskyAlan E. PleussJohn M. Lanning
    • B66C23/76
    • B66C23/76
    • A mobile lift crane includes a carbody, a rotating bed, a boom, a moveable counterweight unit, at least one linear actuation device and at least one arm pivotally connected at a first end to the rotating bed and at a second end to the linear actuation device. The arm and linear actuation device are connected between the rotating bed and the counterweight unit such that extension and retraction of the linear actuation device changes the position of the counterweight unit. In one method of operation, the counterweight is never supported by the ground during crane pick, move and set operations other than indirectly by the ground engaging members on the carbody. One embodiment includes a counterweight movement structure having a rectangular rack with at least first and third pinion gears engaged with teeth on one side and second and fourth pinion gears engaged with teeth on the opposing side.
    • 一种移动式起重机包括车身,旋转床,吊杆,可移动配重单元,至少一个线性致动装置和至少一个臂,其在第一端枢转地连接到旋转床,并且在第二端处连接到线性致动 设备。 臂和线性致动装置连接在旋转床和配重单元之间,使得线性致动装置的伸展和缩回改变配重单元的位置。 在一种操作方法中,在起重机拾取,移动和设置操作期间,配重从不被地面支撑,而不是由车身上的地面接合构件间接地支撑。 一个实施例包括配重运动结构,其具有矩形齿条,其中至少第一和第三小齿轮与一侧的齿啮合,而第二和第四小齿轮与相对侧上的齿啮合。
    • 47. 发明授权
    • Mobile lift crane with lift enhancing attachment
    • 带升降机的移动式起重机附件
    • US07766176B2
    • 2010-08-03
    • US12268868
    • 2008-11-11
    • David J. Pech
    • David J. Pech
    • B66C23/76
    • B66C23/76B66C23/36
    • A mobile lift crane includes a central crane unit, a boom unit and a counterweight unit. The central crane unit has a carbody, moveable ground engaging members and a rotating bed mounted to the ground engaging members with a rotatable connection such that the rotating bed can swing with respect to the ground engaging members. The boom unit has a support member, at least one moveable ground engaging member, and a boom pivotally mounted on the support member. The counterweight unit has counterweight on a support member. Rigging connects the boom and counterweight unit such that a load lifted by the boom can be counterbalanced by the counterweight. The boom unit and counterweight unit are connected to the central crane unit by structural members that carry compressive loads and maintain the boom unit, the rotating bed and the counterweight unit in lateral alignment with each other, but allow relative vertical movement between the boom unit, the rotating bed and the counterweight unit. A main mast is pivotally mounted on the combination of the central crane unit, the boom unit and the structural member between the central crane unit and the boom unit. In another embodiment, a counterweight unit with a swing axis and boom unit are connected directly together with a structural member. Ground engaging members on the boom unit can be rotated relative to a boom unit support member such that the boom unit i) can travel in an arc around the swing axis of the counterweight unit and ii) travel in direction in line with the structural member.
    • 移动式起重机包括中央起重机单元,起重臂单元和配重单元。 中央起重机单元具有车体,可移动地面接合构件和旋转床,其以可旋转连接件安装到地面接合构件,使得旋转床可相对于地面接合构件摆动。 起重臂单元具有支撑构件,至少一个可移动地面接合构件和枢转地安装在支撑构件上的起重臂。 配重单元在支撑构件上具有配重。 吊架连接起重臂和配重单元,使得吊臂提升的载荷可以通过配重抵消。 动臂单元和配重单元通过承载压缩载荷的结构构件连接到中央起重机单元,并且将起重臂单元,旋转底座和配重单元彼此横向对准地保持,但是允许悬臂单元之间的相对垂直运动, 旋转床和配重单元。 主桅杆枢转地安装在中央起重机单元,起重臂单元和中央起重机单元与起重臂单元之间的结构构件的组合上。 在另一个实施例中,具有摆动轴和起重臂单元的配重单元与结构构件直接连接。 动臂单元上的接地构件可以相对于动臂单元支撑构件旋转,使得动臂单元i)能够围绕配重单元的摆动轴线移动,并且ii)沿与结构构件一致的方向行进。
    • 48. 发明申请
    • Drive Tumbler and Track Drive for Mobile Vehicles, Including Lift Cranes
    • 用于移动式车辆的滚筒和履带驱动,包括起重机
    • US20090200860A1
    • 2009-08-13
    • US12368143
    • 2009-02-09
    • David J. PechJoel D. Zick
    • David J. PechJoel D. Zick
    • B62D55/00B62D55/14B23P17/00
    • B62D55/213B62D55/062B62D55/065B62D55/084B62D55/12B62D55/20B62D55/21B62D55/30B62D55/305B62D55/32Y10T29/49449
    • A combination of a drive tumbler and a track includes a track made of a plurality of connected track shoes and a plurality of driven surfaces. The track is wrapped around the drive tumbler so that a plurality of the shoes are in contact with the drive tumbler. The drive tumbler has a plurality of drive surfaces and a circumferential rim surface that includes a plurality of shoe contact surfaces that each contact the inside surface of one of the track shoes that are in contact with the tumbler. The shoe contact surface has a shape such that a line normal to the tangent of the shoe contact surface does not pass through the axis of rotation of the drive tumbler, thereby allowing the shoe contact surfaces on the rim of the drive tumbler to transmit a tractive force to the track. A preferred drive tumbler comprises a center hub and a plurality of individual tooth members connected to the center hub by welds.
    • 驱动器翻转开关和轨道的组合包括由多个连接的履带板和多个从动表面构成的履带。 轨道缠绕在驱动器翻转开关上,使得多个鞋子与驱动器翻转开关接触。 驱动转鼓具有多个驱动表面和周向边缘表面,其包括多个鞋接触表面,每个鞋接触表面接触与滚筒接触的一个跟踪鞋的内表面。 鞋接触表面具有这样的形状,使得垂直于鞋接触表面的切线的线不穿过驱动制动栓的旋转轴线,从而允许驱动转鼓的轮缘上的鞋接触表面传递牵引 强力到轨道。 优选的驱动翻转开关包括中心毂和通过焊接连接到中心毂的多个单独的齿构件。
    • 49. 发明申请
    • Mobile Lift Crane with Variable Position Counterweight
    • 具有可变位置配重的移动式起重机
    • US20080099421A1
    • 2008-05-01
    • US11733104
    • 2007-04-09
    • David J. PechKenneth J. Porubcansky
    • David J. PechKenneth J. Porubcansky
    • B66C23/72
    • B66C23/76
    • A mobile lift crane includes a carbody having moveable ground engaging members; a rotating bed rotatably connected to the carbody such that the rotating bed can swing with respect to the ground engaging members; a boom pivotally mounted on a front portion of the rotating bed; a mast mounted at its first end on the rotating bed; a backhitch connected between the mast and a rear portion of the rotating bed; a moveable counterweight unit; at least one hydraulic cylinder; and at least one arm pivotally connected at a first end to the rotating bed and at a second end to the hydraulic cylinder. The arm and hydraulic cylinder are connected between the rotating bed and the counterweight unit such that extension and retraction of the hydraulic cylinder changes the position of the counterweight unit compared to the rotating bed. In one method of operation, the counterweight is positioned forward of a point directly below the top of the mast when no load is on a load hoist line suspended from the boom; and positioned reward of the top of the mast when the hoist line supports a load; and the moveable counterweight is never supported by the ground during crane pick, move and set operations other than indirectly by the ground engaging members on the carbody. In another method the crane is used to perform a pick, move and set operation with a load wherein the move able counterweight is moved toward and away from the front portion of the rotating bed by extending and retracting the hydraulic cylinder during the pick, move and set operation to help counterbalance the load, but the counterweight is never supported by the ground other than indirectly by the ground engaging members on the carbody.
    • 移动式起重机包括具有可移动地面接合构件的车身; 可旋转地连接到所述车体的旋转床,使得所述旋转床相对于所述地面接合构件摆动; 枢转地安装在旋转床的前部的起重臂; 在其第一端安装在旋转床上的桅杆; 连接在桅杆和旋转床的后部之间的后跟; 可移动配重单元; 至少一个液压缸; 并且至少一个臂在第一端处枢转地连接到旋转床,并且在第二端枢转地连接到液压缸。 臂和液压缸连接在旋转床和配重单元之间,使得液压缸的延伸和缩回改变了配重单元与旋转床相比的位置。 在一种操作方法中,当悬臂上的负载提升线上没有负载时,配重位于桅杆顶部正下方的一个位置; 并且当葫芦线支撑负载时,定位了桅杆顶部的奖励; 并且在起重机拾取,移动和设置操作之外,可移动配重从来不被地面支撑,而不是由车身上的地面接合构件间接地支撑。 在另一种方法中,起重机用于通过负载进行拾取,移动和设置操作,其中通过在拾取,移动和移动期间使液压缸延伸和缩回,可移动的配重在转动床的前部移动并远离旋转床的前部 设置操作以帮助平衡负载,但配重从不被地面支撑,而不是由车身上的接地构件间接地支撑。