发明名称 |
ELEVATOR LOAD BEARING MEMBER WEAR AND FAILURE DETECTION |
摘要 |
<p>An elevator load bearing member (22) monitoring device (20) has a controller (30) that applies a first signal (40) and a second signal (50) to at least one tension member (24) in the belt. The first signal (40) in one example has a plurality of pulses (42) of a selected amplitude and duration. The second signal (50) includes a series of pulses (52) having a second, shorter duration and lower amplitude. The first signal is useful for providing information regarding a wear condition of the load bearing member. The controller utilizes a response to the second signal to determine a failure condition such as a broken load bearing member.</p> |
申请公布号 |
WO2005095252(A1) |
申请公布日期 |
2005.10.13 |
申请号 |
WO2004US07899 |
申请日期 |
2004.03.16 |
申请人 |
OTIS ELEVATOR COMPANY;STUCKY, PAUL A.;VERONESI, WILLIAM A. |
发明人 |
STUCKY, PAUL A.;VERONESI, WILLIAM A. |
分类号 |
B66B7/06;B66B9/00;G01N27/20;G01N27/82;(IPC1-7):B66B9/00 |
主分类号 |
B66B7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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