公开(公告)号：WO2006086990A3

公开(公告)日：2007-03-01

申请号：PCT/DK2006000094

申请日：2006-02-16

Applicant: GULDMANN V AS ,  SOERENSEN AKSEL KLOSTER ,  KRISTENSEN HENNING B ,  SOERENSEN PETER MICHAEL

Inventor： SOERENSEN AKSEL KLOSTER ,  KRISTENSEN HENNING B ,  SOERENSEN PETER MICHAEL

IPC: B66B1/40

CPC classification number: B66B5/0087 ,  B66B1/02

Abstract: The preset invention relates to a method for determining the amount of motor current that is sufficient to hold a load (4) in a hoisting apparatus (2), where the motor (6) is an electrical induction motor that is driven by an electrical power source (12), the load (4) is attached to a line (5) on a drum (7) that is driven by the motor (6), and where the method comprises a start step where the load (4) is accelerated, a steady state step where the load (4) is hoisted with substantially constant speed while the line (5) is winded onto the drum (7), and a breaking step where the load (4) is decelerated where the motor current (I) is measured at the end of the steady state step, from which the load holding current is determined by comparing the measured motor current (I) with an empirical table, from which the load holding current is determined in order to counterbalance the torque (T) on the motor (6) caused by the load (4). The preset invention, furthermore, relates to a hoisting apparatus (2) comprising an electric induction motor (6), a transmission system (14), a winch containing a line (5) that in one extremity is attached to a drum (7) of the winch and in the other extremity is equipped with means for attaching a load (4), where the drum (7) is driven by the electric induction motor (6), a driver which supplies the electric induction motor (6) with a current and a controller (10) for controlling the motor (6) where the electric induction motor (6) is a pulse width modulated DC electric motor, and the controller (10) is adapted to receive a measurement of the current supplied to the electric induction motor (6), and the controller (10) is equipped with an empirical table.

Abstract translation: 本发明涉及一种用于确定足以将负载（4）保持在提升装置（2）中的电动机电流量的方法，其中电动机（6）是由电力驱动的电感应电动机 源（12），负载（4）附接到由电动机（6）驱动的鼓（7）上的管线（5），并且其中该方法包括加载负载（4）的启动步骤 ，其中在线（5）卷绕到滚筒（7）上时负载（4）以基本上恒定的速度提升的稳定状态步骤以及负载（4）减速的断开步骤，其中电动机电流（I ）在稳态阶段结束时测量，通过将测得的电动机电流（I）与经验表进行比较来确定负载保持电流，由此确定负载保持电流以平衡转矩（T ）由负载（4）引起的电机（6）上。 此外，本发明涉及一种包括感应电动机（6），变速器系统（14），绞车（3）的绞盘（2），所述绞盘包括一端（5），其一端连接到鼓（7） 的绞车，另一端配备有用于附接负载（4）的装置，其中鼓（7）由感应电动机（6）驱动，驱动器向电动感应电动机（6）供应 电流和用于控制电动机（6）的控制器（10），其中感应电动机（6）是脉宽调制DC电动机，并且控制器（10）适于接收对电动机 感应电动机（6）和控制器（10）配备经验表。