DEVICE FOR BRAKING A ROTARY BENDING BODY, SUCH AS A ROTARY SHAFT, AND TRANSMISSION INTEGRATING SUCH A BRAKING DEVICE

摘要

The invention relates to a device for braking a rotating elongate body (1) of the type comprising at least two parts (2A, 3A) with coaxial conical surfaces (5, 6) which can be threaded onto said body ( 1) and mounted one, said cone (2A) male, integral in rotation with said body (1), the other, said cone (3A) female, fixed in rotation relative to said body (1), the cone (3A female having the shape of a bore wheel (4) having a conical bearing surface (6) and the cone (2A) being centrally hollowed out, the cones being controlled in axial relative displacement by means of a member ( 8), the male cone (2A) being, in a position close to said cones (2A, 3A), corresponding to the braking position, housed inside the axial bore (4) of the female cone (3A). , with its conical outer circumferential surface (5) engaged, by bearing contact, with the conical bearing surface (6) of the cone (3A) female.This device comprises at least two pairs cones (2A, 3A, 2B, 3B) each formed of a male cone (2A, 2B) and a female cone (3A, 3B) and in that the control member (8) is common to both pairs (2A, 3A, 2B, 3B) of cones.