发明名称 |
ANORDNING FOR ATDRAGNING AV EN KONSTRUKTIONSENHET MED ETT FESTELEMENT, TILLS DENSAMMES STRECKGRENS DETEKTERAS |
摘要 |
The preferred embodiments of the invention disclosed herein relate to a tightening system comprising a wrench for rotating and applying torque to a fastener system, means for developing a signal representative of the torque being applied and means for developing a signal representative of the rotation. The signals are compared and the total rotation signal is increased when the torque signal is increasing at a faster rate than the rotation signal so that the rotation signal corresponds to the torque signal. When the torque signal decreases relative to the rotation signal the rotation signal cannot decrease and a decision-making signal is developed which is processed to develop a control signal when a yield point of the fastener system is detected. |
申请公布号 |
SE434611(B) |
申请公布日期 |
1984.08.06 |
申请号 |
SE19760005621 |
申请日期 |
1976.05.18 |
申请人 |
SPS TECHNOLOGIES INC |
发明人 |
J T * BOYS |
分类号 |
B25B23/151;B23P19/06;B25B23/14;B25B23/145;G05D17/02;(IPC1-7):25B23/145 |
主分类号 |
B25B23/151 |
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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