发明授权
- 专利标题： Apparatus and process for determining the instantaneous and continuous loads on a lifting mechanism
- 专利标题（中）： 用于确定提升机构上的瞬时和连续负载的装置和过程
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申请号： US840859申请日： 1997-04-17
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公开(公告)号： US5859373A公开(公告)日： 1999-01-12
- 发明人: Anton Munzebrock , Eberhard Schroder , Michael Hulsmann
- 申请人： Anton Munzebrock , Eberhard Schroder , Michael Hulsmann
- 申请人地址： DEX Dusseldorf
- 专利权人： Mannesmann Aktiengesellschaft
- 当前专利权人： Mannesmann Aktiengesellschaft
- 当前专利权人地址： DEX Dusseldorf
- 优先权： DEX19617105.9 19960419
- 主分类号： G01L5/00
- IPC分类号： G01L5/00 ; B66C13/16 ; B66D1/46 ; B66D1/54 ; G07C3/00 ; H02P29/40 ; G01L1/04
摘要：
A process and apparatus for determining a load on a lifting mechanism including a load measuring device and a three-phase induction motor operable for lifting and lowering the load. The effective power consumption of the induction motor is determined by the load measuring device based on a measured current and measured voltage of the induction motor. The measured effective power consumption is then compared with a reference power, which is calculated as the power output of the induction motor driving a nominal load of the lifting mechanism, to calculated an instantaneous load on the lifting mechanism. The inventive apparatus and process advantageously requires no modifications or additions to load carrying parts of a lifting mechanism or carrying gear and provides accurate real time measurement of the load.
公开/授权文献
- US4740805A Background fill-lighting system 公开/授权日：1988-04-26
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