公开(公告)号：US6153992A

公开(公告)日：2000-11-28

申请号：US281487

申请日：1999-03-30

Applicant: Udo Gersemsky ,  Axel Hauschild ,  Rolf Koschorrek ,  Torsten Sattler

Inventor： Udo Gersemsky ,  Axel Hauschild ,  Rolf Koschorrek ,  Torsten Sattler

IPC: B66C11/06 ,  B66C9/14 ,  B66C9/18 ,  B66C13/06 ,  B66C13/22 ,  B66C13/24 ,  H02K17/32

CPC classification number: B66C9/14 ,  B66C11/06 ,  B66C9/18

Abstract: A running gear for hoists and suspended loads has a running rail with two spaced-apart travel tracks that support axially spaced-apart running wheels. An electric motor is coupled to a self-locking worm gear for directly driving one of the running wheels. The running wheels are rotatably supported in a frame to which an assembly for hoisting suspended loads is secured. In order to prevent the running gear from rolling and pitching during braking, which can cause increased wear of the running gear and the running rail, a control unit is provided which is operatively connected to the electric motor and determines a start-up rate during the start-up phase of the motor from an average increase of the motor torque as a function of time, and decreases the motor torque as a function of time at a slower rate than the start-up rate for slowing down the running gear.

Abstract translation: 用于起重机和悬挂载荷的行走装置具有行进轨道，其具有两个间隔开的行进轨道，其支撑轴向间隔开的行驶轮。 电动马达与自锁蜗轮联接，用于直接驱动行驶轮之一。 运行轮可旋转地支撑在框架中，用于提升悬挂载荷的组件被固定到该框架上。 为了防止行驶齿轮在制动期间滚动和俯仰，这可能导致行驶齿轮和行驶轨道的磨损增加，提供控制单元，其可操作地连接到电动机，并且确定在 从马达转矩的平均增加作为时间的函数，电动机的启动阶段，并且以比用于减速运行装置的启动速率慢的速率将电动机转矩作为时间的函数减小。

公开(公告)号：US5942870A

公开(公告)日：1999-08-24

申请号：US837612

申请日：1997-04-21

Applicant: Rolf Koschorrek ,  Stefan Elspass ,  Michael Hulsmann

Inventor： Rolf Koschorrek ,  Stefan Elspass ,  Michael Hulsmann

IPC: G05D3/00 ,  G05B19/416 ,  G05D3/12 ,  H02P3/00 ,  H02P5/05

CPC classification number: G05B19/416 ,  G05B2219/43028 ,  G05B2219/43037 ,  G05B2219/43044 ,  G05B2219/43082 ,  G05B2219/43096

Abstract: A process and apparatus for positioning an object being moved along a path to a destination using a pole changing three-phase induction motor having at least two fixed driving speeds. The object is initially accelerated along the path of movement to the highest driving speed of the motor, during which the acceleration curve is determined and stored. The acceleration data is then used to calculate the location along the path in advance of the destination at which the motor is switched off and braked until reaching the next lower driving speed, whereupon the motor is operated at the next lower driving speed for a predetermined path length. The motor is then again switched off and braked until its driving speed reaches zero closely proximate the destination, at which point a motor in a gear assembly attached to the motor is operated for final low speed positioning of the object at the destination with a high degree of accuracy. The calculation of the initial switch-off location using, in the preferred embodiment, the dynamically-determined acceleration curve results in rapid and highly accurate object positioning without the need for undesirable buffer paths.

Abstract translation: 一种用于使用具有至少两个固定行驶速度的极点改变三相感应电动机来定位被沿着路径移动到目的地的物体的过程和装置。 该物体最初沿运动路径被加速到马达的最高驱动速度，在此期间确定和存储加速度曲线。 然后，加速度数据用于在电机关闭和制动的目的地之前计算沿着路径的位置，直到达到下一个较低的驱动速度，于是电机在下一个较低的驱动速度下操作预定的路径 长度。 然后马达再次被关闭并且被制动直到其驱动速度在目的地附近到达零点，此时，连接到马达的齿轮组件中的马达被操作以最终低速定位物体在目的地的高度 的准确性。 在优选实施例中，使用动态确定的加速度曲线的初始关闭位置的计算导致快速且高度准确的对象定位，而不需要不期望的缓冲路径。