| 摘要 |
FIELD: snow-ploughs of rotor type. ^ SUBSTANCE: snow-plough comprises chassis carrying drive and case for drive closing, cylindrical working chamber with rotor and outlet orifice, guiding sheets and drive control means. Rotor is connected to drive shaft and includes disc-shaped base transversal to axis of drive shaft and blade rotation. The blades are bent of flat sheet material. Line of each blade intersection with any plane transversal to rotor rotation axis substantially mates shape of logarithmic spiral section defined by rotor convex in rotor rotation direction. The blades are inclined with respect to disc-shaped base so that angle between the blade and disc-shaped base in less than 90° in rotor rotation direction. The blades are fastened to disc-shaped direction along joint line shaped as logarithmic spiral section defined by rotor convex in rotor rotation direction. ^ EFFECT: increased snow-shifting capacity along with decreased snow removal cost and reduced labor inputs for snow-plough production. ^ 4 cl, 7 dwg |
