公开(公告)号：US5507234A

公开(公告)日：1996-04-16

申请号：US342857

申请日：1994-11-21

申请人： George E. Thorsen

发明人： George E. Thorsen

IPC分类号： B66C9/16 ,  B66C9/00

CPC分类号： B66C9/16

摘要： An overhead traveling crane adapted to be supported on a pair of spaced apart, generally parallel first and second rails, the crane comprising a frame having opposite first and second ends, a first drive wheel which is rotatably mounted on the first end of the frame and which is adapted to roll along the first rail, a first idler wheel which is rotatably mounted on the first end of the frame and which is adapted to roll along the first rail, a second drive wheel which is rotatably mounted on the second end of the frame and which is adapted to roll along the second rail, a second idler wheel which is rotatably mounted on the second end of the frame and which is adapted to roll along the second rail, a first motor mounted on the frame and drivingly connected to the first drive wheel, a second motor mounted on the frame and drivingly connected to the second drive wheel, an idler shaft connecting the idler wheels such that the idler wheels rotate at the same speed, a hoist moveable along the frame in a direction generally perpendicular to the rails, and a load engaging mechanism which is raised and lowered by the hoist.

摘要翻译： 该起重机适于被支撑在一对间隔开的大致平行的第一和第二轨道上，所述起重机包括具有相对的第一和第二端的框架，第一驱动轮，其可旋转地安装在所述框架的第一端上， 其适于沿着所述第一轨道滚动，第一惰轮，其可旋转地安装在所述框架的第一端上并且适于沿着所述第一轨道滚动;第二驱动轮，其可旋转地安装在所述第一轨道的第二端上 框架，其适于沿着所述第二轨道滚动;第二惰轮，其可旋转地安装在所述框架的第二端上并且适于沿着所述第二轨道滚动;第一马达，安装在所述框架上并且驱动地连接到所述框架 第一驱动轮，安装在框架上并驱动连接到第二驱动轮的第二马达，连接惰轮的空转轴，使得惰轮以相同的速度旋转，可沿t移动的起重机 他大致垂直于轨道的方向框架，以及由起重机升高和降低的负载接合机构。

公开(公告)号：US5156282A

公开(公告)日：1992-10-20

申请号：US806682

申请日：1991-12-13

申请人： George E. Thorsen

发明人： George E. Thorsen

IPC分类号： B66C9/16

CPC分类号： B66C9/16

摘要： A skew correcting apparatus for a crane supported on spaced apart generally parallel rails by a plurality of wheels including a drive wheel traveling on each of the parallel rails. The drive wheels traveling on the spaced apart rails are driven such that they rotate at the same speed. One of the drive wheels has an axially extending single diameter cylindrical surface engaging the top side of the rail head and a radially extending circumferential flange facing the inner side of the rail head. In one of the skewed positions of the crane, one of the wheels lags the other of the wheels and is subject to high levels of skew force such that the flange of the lagging wheel and the inner side of the rail head it faces engage each other. Each one of the wheels also includes a flange juncture surface joining the cylindrical surface of the flange of each wheel. The flange juncture surface faces the shoulder surface of the rail head and includes a flange cross-sectional curvature having a flange radius greater than the shoulder radius of the faced rail head. In the lagging one of the wheels, in response to small levels of skew force less than the levels of skew force that cause the flange of the lagging wheel and the inner side of the rail head to engage, the flange juncture surface moves into engagement with the facing shoulder surface to increase the diameter of the lagging one of the wheels in engagement with the shoulder surface.

摘要翻译： 一种用于通过多个车轮支撑在间隔开的大致平行轨道上的起重机的歪斜校正装置，包括在每个平行轨道上行进的驱动轮。 在间隔开的轨道上行进的驱动轮被驱动，使得它们以相同的速度旋转。 其中一个驱动轮具有接合轨道头的顶侧的轴向延伸的单直径圆柱形表面和面向轨头的内侧的径向延伸的周向凸缘。 在起重机的倾斜位置之一中，其中一个车轮滞后于另一个车轮并且受到高水平的偏斜力，使得滞后轮的凸缘和其轨道头的内侧面彼此相互接合 。 每个轮子还包括接合每个车轮的凸缘的圆柱形表面的凸缘接合表面。 凸缘接合表面面向导轨头部的肩部表面，并且包括凸缘半径大于面向轨道头部的肩部半径的凸缘横截面曲率。 在滞后的一个车轮中，响应于小于使滞后轮的凸缘和轨道头的内侧接合的偏斜力的水平的小水平，凸缘接合表面移动成与 面对的肩部表面以增加与肩部表面接合的落后的轮子的直径。

公开(公告)号：US5080021A

公开(公告)日：1992-01-14

申请号：US503348

申请日：1990-04-02

申请人： George E. Thorsen

发明人： George E. Thorsen

IPC分类号： B66C9/16

CPC分类号： B66C9/16

摘要： A skew correction apparatus for a crane traveling on generally parallel spaced apart rails and having a drive wheel on each rail rotatably driven at the same speed. The drive wheels each have center cylindrical portions riding on a rail head and inside and outside flanges facing the sides of the rail head and having a larger diameter than the diameter of the center portion. The clearance distance between the inside flange of each drive wheel and the rail side it faces is smaller than the clearance distance between the outside flange and the rail side the outside flange faces. Thus, if the drive wheels and thereby the crane become skewed, only the inside drive wheel flanges will engage the rail sides. The lagging wheel of the skewed wheels will rotate against the rail side on the larger flange diameter of the wheel and tend to ride up on the rail side. Rotating on the larger flange diameter will increase the linear speed of the lagging wheel, since it continues to rotate at the same rotating speed as the leading wheel, so that it will catch up with the leading wheel and thereby correct the skew.

摘要翻译： 用于起重机的倾斜校正装置，其行进在大致平行的间隔开的轨道上，并且在每个轨道上具有以相同速度可旋转地驱动的驱动轮。 驱动轮各自具有骑在轨头上的中心圆柱形部分和面向轨头的侧面的内侧和外侧凸缘，并且具有比中心部分的直径更大的直径。 每个驱动轮的内侧法兰与其所面对的轨道侧之间的间隙距离小于外部法兰与外侧法兰面之间的轨道侧之间的间隙距离。 因此，如果驱动轮和起重机变得歪斜，则只有内侧驱动轮凸缘将与轨道侧接合。 偏斜车轮的滞后轮将在车轮的较大法兰直径上相对于轨道侧旋转，并且倾向于在轨道侧上行驶。 在较大的法兰直径上旋转将增加滞后轮的线速度，因为它将以与引导轮相同的转速继续旋转，从而使其赶上引导轮，从而纠正歪斜。

公开(公告)号：US5216957A

公开(公告)日：1993-06-08

申请号：US806530

申请日：1991-12-13

申请人： George E. Thorsen

发明人： George E. Thorsen

IPC分类号： B66C9/08 ,  B66C9/16

CPC分类号： B66C9/08 ,  B66C9/16

摘要： A skew correcting apparatus for a crane having drive wheels traveling on spaced apart rails which are independently driven. Each one of the drive wheels has an axially extending single diameter cylindrical surface and first and second axially spaced apart radially extending circumferential flanges. The spacing distance of the first flange of each of the first and second wheels is such that, when the crane is in one of the skewed positions the first flange of the leading wheel in the direction of travel engages the faced outer side of the rail head and the engagement of the second flange of the lagging one of the wheels with the inner rail side which it faces is minimized. Each rail head has a shoulder surface including a radius defining a cross-sectional shoulder curvature. The first flange of each one of the wheels also includes a circumferential flange juncture surface adjoining the cylindrical surface. Each flange juncture surface faces a rail head shoulder surface and has a cross-sectional radius such that the flange juncture surface of the leading skewed wheel engages the faced rail head shoulder surface along a cross-sectional line of engagement in each one of the skewed positions. Preferably the radii of the rail head shoulder surface and flange juncture surface are substantially equal so that friction is maximized.

摘要翻译： 一种用于起重机的倾斜校正装置，其具有在独立驱动的间隔开的轨道上行进的驱动轮。 每个驱动轮具有轴向延伸的单直径圆柱形表面和第一和第二轴向间隔开的径向延伸的圆周凸缘。 第一和第二轮中的每一个的第一凸缘的间隔距离使得当起重机处于倾斜位置之一时，引导轮的沿行进方向的第一凸缘接合轨道头的相对的外侧 并且将落后的一个车轮的第二凸缘与其所面对的内侧轨道接合最小化。 每个轨头具有包括限定横截面肩曲率的半径的肩部表面。 每个车轮的第一凸缘还包括邻接圆柱形表面的周向凸缘接合表面。 每个凸缘接合表面面向轨道头肩部表面，并且具有横截面半径，使得前导斜齿轮的凸缘接合表面沿着每个倾斜位置中的横截面线接合面对轨道头肩部表面 。 优选地，轨头表面和凸缘接合表面的半径基本相等，使得摩擦力最大化。

公开(公告)号：US5706736A

公开(公告)日：1998-01-13

申请号：US584223

申请日：1996-01-11

申请人： George E. Thorsen

发明人： George E. Thorsen

IPC分类号： B66C9/16 ,  B66C17/00 ,  B61F13/00

CPC分类号： B66C17/00 ,  B66C9/16

摘要： Disclosed is a polar crane supported by a rail and having a bridge and a bridge-supporting end truck at each end of the bridge. Each end truck has, for either direction of revolving bridge motion, a leading wheel contacting the rail. In the improvement, the leading wheel of each end truck has a single flange and the flange is inward of the rail. Skewed crane "lock-up" is thereby substantially prevented. A related method for modifying a polar crane includes raising the first end truck away from the rail, removing a two-flange wheel (the leading wheel) from the first end truck and installing a one-flange wheel in place thereof.

摘要翻译： 公开了一种由轨道支撑的极地起重机，并且在桥的每一端具有桥和桥梁支撑端车。 每个末端卡车，对于任何方向的旋转桥梁运动，引导轮接触轨道。 在改进中，每个端面卡车的前轮具有单个凸缘，凸缘位于导轨的内侧。 从而基本上防止了倾斜起重机“锁定”。 用于修改极地起重机的相关方法包括将第一端部货车从轨道上升起，从第一端面卡车移除双凸缘轮（引导轮），并将一个法兰轮安装在其上。

公开(公告)号：US5119737A

公开(公告)日：1992-06-09

申请号：US607946

申请日：1990-11-01

申请人： George E. Thorsen

发明人： George E. Thorsen

IPC分类号： B66C9/16

CPC分类号： B66C9/16

摘要： A drive for a traveling bridge crane including a bridge having a width spanning two parallel spaced apart rails and opposite ends located at one of the rails. A first pair of wheels comprising first and second wheels are respectively mounted at the opposite ends of the bridge and each of the first and second wheels engage a different one of the rails. A second pair of wheels comprising third and fourth wheels are also mounted at the opposite ends of the bridge and each engage a different one of the rails. The crane travels along the rails on the first and second pair of wheels in a position generally parallel to the rails. The crane is subject to unbalanced wheel rotating forces causing the crane to frequently attempt to skew. First and second drive mechanisms are respectively connected to the first and second wheels of the first pair of wheels for rotating the first and second wheels independently of each other. A third drive mechanism is connected to both of the third and fourth wheels. The third drive mechanism applies the unbalanced wheel rotating forces on the crane bridge equally to the third and fourth wheels to minimize skew movement of the third and fourth wheels and the independently driven first and second wheels. Minimizing of skew by the third drive mechanism maintains traction at each of the first, second, third and fourth wheels.

摘要翻译： 一种用于行进桥式起重机的驱动器，包括跨越两个平行间隔开的​​轨道的宽度的桥梁，以及位于轨道之一处的相对端部。 包括第一和第二轮的第一对轮分别安装在桥的相对端，并且每个第一和第二轮啮合不同的一个轨道。 包括第三和第四轮的第二对轮也安装在桥的相对端，并且每个轮啮合不同的轨道。 起重机沿着大致平行于轨道的位置沿着第一和第二对车轮上的轨道行进。 起重机受到不平衡轮转动力的影响，导致起重机频繁地扭曲。 第一和第二驱动机构分别连接到第一对车轮的第一和第二轮，用于彼此独立地旋转第一和第二轮。 第三驱动机构连接到第三和第四轮两者。 第三驱动机构将起重机桥梁上的不平衡轮转动力平等地施加到第三和第四轮，以最小化第三和第四轮和独立驱动的第一和第二轮的倾斜运动。 通过第三驱动机构使偏斜最小化在第一，第二，第三和第四轮的每一个处保持牵引力。