METHOD OF THREADED CONNECTIONS TIGHTENING BY IMPACT WRENCH AND DEVICE FOR THIS METHOD IMPLEMENTATION Russian patent published in 2009 - IPC B25B21/02 B25B23/14

Abstract RU 2359810 C2

FIELD: production processes.

SUBSTANCE: invention refers to mechanical assembly of threaded connections by pulse impact wrench and can be used in different fields of engineering industry. Threaded connection receives series of impact-rotative pulses till reaching turning torque specified value. The power of single impact of impact-rotative pulse at tightening is increased from pulse to pulse by increasing of striker starting time.

EFFECT: provision of increase of tightening torque accuracy.

2 cl, 1 dwg

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RU 2 359 810 C2

Authors

Ustinov Vitalij Valentinovich

Dates

2009-06-27—Published

2007-08-02—Filed