RU94033300A - Self-propelled vibration roller with combination-action vibration exciter - Google Patents

Abstract

FIELD: construction machinery; compacting of road coatings, bases and ground. SUBSTANCE: proposed vibration roller with combination-action vibration exciter is made in the form of hinge-connected front and rear semiframes mounting drive mechanism and driven static roll. Vibrating roll is mounted on front semiframe. Three circular vibration exciters r installed inside roll on cross ribs. Axis of middle vibration exciter coincides with axis of rotation of vibrating roll, and two other vibration exciters are displaced from axis of rotation in diametrically opposite sides through equal distances. Novelty in design of roller is use of three simultaneously vibrating exciters driven from one hydraulic motor through gear train and installed in one vibrating roll. Unbalance weights of two extreme shafts rotate at equal speed in one side, and that of middle exciter, in opposite side, being displaced through 90 deg relative to first two weights. This provides shifting and crushing actions on material to be compacted increasing, by 1/3rd, capacity and quality of compaction at smaller mass of roller. EFFECT: increased efficiency of roller, reduced metal usage in roller manufacture. 3 dwg

Claims (1)

The invention relates to construction equipment, and in particular to machines for compaction of pavements, bases and soil. The purpose of the invention: improving the efficiency of compaction, reducing the metal consumption of the vibratory roller. The inventive vibration roller with a vibration exciter of combined action is made in the form of articulated front and rear semi-frames on which the drive and the static drive roller are mounted. The vibrator is mounted on the front frame. Inside the roller, on the transverse ribs, there are three causative agents of circular vibrations. The axis of the middle vibration exciter coincides with the axis of rotation of the vibratory roll, and the other two are offset from the axis of rotation in diametrically opposite directions by equal distances. New in the claimed design is the installation in the vibratory roll of simultaneously rotating three vibration exciters of circular vibrations driven by one hydraulic motor through a gear transmission. The unbalanced masses of the two extreme shafts rotating at the same speed in one, and the middle pathogen in the opposite direction and are offset by 90 ^o to the first two. This ultimately causes a shear and creasing effect on the material being compacted, increasing the productivity and quality of the seal by a third with a lower mass of the roller.