| 摘要 |
A zero clearance locking mechanism for a disconnect coupling device for a segmented driveshaft wherein the disconnect coupling device includes an input disconnect member having an input splined coupler integrated in combination therewith, an output disconnect member having an output splined coupler integrated in combination therewith, and a coil spring disposed in combination with the input disconnect member and operative to provide a biasing force. The locking mechanism includes a concentric lock housing secured in combination with the output disconnect member, an annular sleeve secured in combination with the coil spring, an annular equalizer plate disposed in free-floating combination with the input disconnect member in abutting engagement with the annular sleeve, a plurality of links mechanically connected in rotatable combination with the annular equalizer plate and equidistantly spaced about the circumference thereof, a locking dog mechanically connected in rotatable combination with each of the links, and a dog guide secured in combination with the input disconnect member in alignment with each locking dog, the dog guide defining a translational axis for the corresponding locking dog for displacement of the locking dog between a retracted position and an extended position. In the locked position of the locking mechanism, the biasing force exerted by the coil spring causes displacement of the locking dogs to the extended position wherein the locking dogs mechanically engage the concentric lock housing with a locking force to positively lock the input and output splined couplers in mechanical engagement in meshing combination. The structural configuration of the links and locking dogs in combination causes the locking force to be augmented by centrifugal force effects acting through the links and locking dogs.
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