Self locking type worm gear-worm screw-threaded shaft elevator
A screw lifter and worm gear technology, applied in the field of lifts, can solve the problems of poor self-locking capacity and low load-bearing capacity, and achieve the effect of reasonable structure, strong load-bearing capacity, and good self-locking effect
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[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] figure 1 A self-locking worm gear and worm screw lifter shown includes a worm 1, a worm gear 2, a nut, a screw 5, and a drum tooth 6. The worm 1 meshes with the worm wheel 2, and the worm wheel 2 meshes with the nut through the drum tooth 6, The nut is screwed with the lead screw, and the nut is a double-nut structure, including a nut concave piece 3 and a nut convex piece 4 that are screwed together. figure 1 In the coupling structure of the combination of smooth surface and thread shown, the concave part of the nut and the convex part of the nut are riveted by the retaining screw 7;
[0017] In the design of the worm gear pair, the two-pack tooth shape parameters are selected for processing, and the lead angle is made as small as possible.
[0018] Installation steps: first install the worm and worm gear pair, and then install the lead screw nut pair. When i...
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