Gear self-driving elevator

摘要: The invention relates to a gear self-driving elevator. elevator comprises lift car, an elastic compensation mechanism, two driving devices and toothed guide rails, wherein the top of car is provided with load bearing transverse beam, beam containing cavity which ends are through; mechanism arranged in cavity; both connected can go close or away from each other, andthe at correspondingly; rails on opposite sides engagement fit one-to-one correspondence mode. be pushed by capacity move accordingly, reliably always, tooth disengagement problem avoided, high-altitude falling potential safety hazard eliminated.