Figure 3.11. Block of differentials with the drive of the docking mechanism (Soyuz APDA). 1. block of terminal contacts; 2. differential; 3. electromagnetic catch; 4. spring mechanism; 5. misalignment sensor; 6. docking mechanism drive. 7. output. where is the pitch of the screw). Thus, to reduce after testing of the APDA the transmission ratio was decreased by a factor of 1.6. The maximum speed of rotation of the main elements was reduced from 665 to 415 rev/min (calculated for shock absorption at speed and the mass of all rotating elements was reduced from 205 to 170 kg. Due to the reduction of the applied mass and the change of some other parameters it was possible to significantly reduce additional dynamic loads during shock absorption. The transmission ratio of the reducer between the friction brake of the drive and the nut of the ball-screw converter is determined from the force of coupling
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