TWO-SECTION DRUM OF VIBRATION ROLLER Russian patent published in 2024 - IPC E01C19/28 

FIELD: road construction equipment.

SUBSTANCE: invention relates to road construction equipment and is intended for compaction of construction materials. Two-section drum of vibration roller contains shaft 3 connected with possibility of rotation with drum and fixed by means of rubber shock absorbers 7 with frame 8 of vibration roller, two pairs of unbalanced shafts 1 and 2, which axes are perpendicular to drum axis. Axes of the first pair of unbalanced shafts 1 are located in vertical plane, ends of unbalanced shafts 1 of the first pair are equipped with identical large gear wheels 9 engaged with each other. Ends of unbalanced shafts 2 of the second pair are equipped with small gear wheels 10 of twice smaller diameter than in the first pair. With the same horizontal orientation of the unbalanced weights of the first pair of unbalanced shafts 1, the weights of the second pair of shafts 2 are directed vertically upwards, axes of unbalanced shafts 2 of the second pair are located in horizontal plane below axis of two-section drum. Small gears 10 are engaged with each other and one of them engages with lower large gear 9. Both pairs of unbalanced shafts 1 and 2 are arranged with possibility of rotation in bosses of hollow shaft 11 connected to covers 6 of drum sections by means of radial thrust bearings 4. Drum of the vibration roller is divided into two identical sections, which are symmetrical relative to the plane perpendicular to the axis of the drum, connected to central shaft 3 with possibility of rotation and axial displacement by means of sliding bearings 5 fixed on covers 6 of the drum sections. Sections are elastically connected to each other by means of springs 12 located between adjacent covers 6, and on the opposite side of these covers by means of threaded pins 13 passed through holes in covers.

EFFECT: reduced power consumption for compaction of material, higher efficiency and reduced weight of drums.

1 cl, 3 dwg