Vibratory roller steel wheel stepless amplitude adjustment device

Abstract

The invention discloses a vibratory roller steel wheel stepless amplitude adjustment device which comprises a steel wheel body. The two ends of the steel wheel body are both provided with steel wheel end caps. The centers of the two steel wheel end caps are provided with a vibration shaft through bearings in a penetrating mode. The vibration shaft is symmetrically provided with two pairs of fixed eccentric blocks. A mobile eccentric block is arranged between each pair of fixed eccentric blocks. One end of the vibration shaft is connected with a drive mechanism, and the other end of the vibration shaft is connected with a stepless amplitude adjustment mechanism which comprises a driving belt wheel mechanism and a driven belt wheel mechanism, wherein the transmission ratio of the driving belt wheel mechanism to the driven belt wheel mechanism can be changed. The driving belt wheel mechanism is connected with a vibration motor and connected with the driven belt wheel mechanism through a thrust belt. According to the vibratory roller steel wheel stepless amplitude adjustment device, the size of exciting force is changed by adjusting the rotating speed, and stepless amplitude adjustment can be conducted.

Description

technical field [0001] The invention belongs to the field of road construction machinery, in particular to a stepless amplitude modulation device for a steel wheel of a vibratory road roller. Background technique [0002] Vibratory rollers are mainly used in highways, railways, airports, ports, construction and other projects to compact various soils, crushed stones, various asphalt concrete, etc. It is one of the important equipment for engineering construction. In road construction, It is mostly used in the compaction of roadbed and road surface, and is an indispensable compaction equipment in road construction. The vibratory road roller relies on the combined action of the mass of the machine itself and the exciting force generated by the exciting device to reduce the internal friction between the particles of the material to be pressed, to tighten the material particles, and to achieve the purpose of compacting the soil. Compared with the static roller, the vibratory ro...

AI Technical Summary

Problems solved by technology

Although these methods change the exciting force of the road roller to a certain extent, they also greatly increase the maintenance cost and difficulty. The method of adding steel balls is followed by the impact of noise; the addition of mercury will also greatly corrode the eccentric block, which must be installed Anti-corrosion device

However, there are very few stepless amplitude modulation road rollers actually used in construction operations at present, and most vibratory rollers only have two working conditions: low amplitude and high amplitude.

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