| 摘要 |
The elevator has two chassis (1), connected by removable rails (10), each equipped with vertical runners (4,4a) in which slide two frames (5,5a) provided with retractable lugs (6,6a) on which rest the tower parts. Vertical displacement of the frames is obtained by means of synchronous hydraulic actuators.Synchronisation is obtained by using two identical actuators supplied in series by flexible pipes. One of the flexible pipes is obligatorily connected either to the two bottoms or the two heads of cylinders. The actuators are located so that when one is completely extended, the other is completely closed. The synchronisation of the two actuators is obtained by a removable and extendible transmission shaft.
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