| 摘要 |
<p>The invention relates to a safety coupling meant to transmit the torsion moment and rotation motion between two consecutive coaxial elements of a kinematic linkage and, at the same time, to limit the transmitted torsion moment in case that an overload occurs during operation. According to the invention, the coupling comprises two semi-couplings (1 and 2), some active seats made of some cylindrical rollers (3) arranged radially in two rows, mounted in some circular orifices (a) of the second semi-coupling (2), some rolling rollers (4) placed, on the one hand, within the active seats (a) of the second semi-coupling (2) and, on the other hand, within some angular channels of some pressing pins (5) pressed by some cylindrical compression springs (6) whose force is adjusted by means of some screw plugs (7), during the uncoupling process, the rolling rollers (4) passing over the cylindrical rollers (3) and reaching an external surface of the second semi-coupling (2) rotating as against the first semi-coupling (1) by means of some bearings (8) mounted thereon, said bearings (8) having the role of axial centering of the two semi-couplings (1 and 2) by means of an end flange (9) and guiding the rolling rollers (4) during the uncoupling process.</p> |
