| 摘要 |
FIELD: machine building. ^ SUBSTANCE: facility consists of screw with stop, of nut, and of case with orifice and slots. The screw with a stop and the nut threaded on the screw are arranged in the case. Also one end of the screw enters the orifice in the case, while the nut rests on the case at least with a part of its side surface at any position relative to the screw. k1S1>k2S2, where k1- is friction ratio between touching surface of the nut and the case, k2 - is friction ratio between touching surfaces of the nut and the case, S1- is area of the nut and case touching surface, S2 - is area of the nut and screw touching surface. ^ EFFECT: increased reliability and service life of facility, and nut gradual braking when it rests against case. ^ 4 cl, 3 dwg |
