发明名称 |
Apparatus for counting turns when making threaded joints including an increased resolution turns counter |
摘要 |
An apparatus for controlling the number of turns made and the torque applied during the operation of making a threaded joint includes a high resolution turns counter. The turns counter senses the rotation of a member of the joint and generates a pulsed signal, each pulse representing a predetermined increment of rotation. The turns counter includes an idler wheel driven by one member of the joint and in turn driving an encoder which generates a relatively large number of pulses per revolution of the idler wheel. A presettable divide-by-N circuit is utilized to divide the encoder pulses to generate a pulse train to a monitoring and control apparatus for indicating whether a good or a bad joint has been made. The divide-by-N counter can be preset to generate a predetermined number of pulses per revolution of the joint member or pulses representing a predetermined percentage of a total number of turns to be made.
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申请公布号 |
US4446745(A) |
申请公布日期 |
1984.05.08 |
申请号 |
US19810253118 |
申请日期 |
1981.04.10 |
申请人 |
BAKER INTERNATIONAL CORPORATION |
发明人 |
STONE, LYNDON R.;HALL, JAMES D. |
分类号 |
B23P19/06;B25B23/14;E21B19/16;(IPC1-7):G01L5/24 |
主分类号 |
B23P19/06 |
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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