Eccentric vibration device of road roller and arranging structure thereof

Abstract

The invention relates to an eccentric vibration device of a road roller and an arranging structure thereof. The device comprises a vibration shaft and a movable eccentric block group, wherein the movable eccentric block group is arranged on the vibration shaft; the movable eccentric block group comprises movable eccentric blocks, limiting rings and fixing keys; the limiting rings are fixed to the vibration shaft through the fixing keys, limiting grooves being matched with limiting convex blocks on the limiting rings are formed in the movable eccentric blocks, and the central angles of the limiting grooves are equal to or larger than those of the limiting convex blocks; and when the central angles of the limiting grooves are larger than those of the limiting convex blocks, the limiting grooves are matched with the limiting convex blocks, so that when the vibration shaft positively rotates or negatively rotates, the movable eccentric blocks provided with two vibration limitation positions correspondingly. According to the eccentric vibration device of the road roller and the arranging structure thereof, structures of the movable eccentric blocks are greatly simplified, and manufacturing and installing difficulties of the eccentric blocks are lowered; and meanwhile, the movable eccentric blocks are integrally formed, thus the movable eccentric blocks are not prone to being damaged during using, and during working, stability and reliability are highly maintained.

Description

technical field [0001] The invention belongs to the technical field of road roller vibration, and in particular relates to an eccentric vibration device of a road roller and an arrangement structure thereof. Background technique [0002] At present, the vibration amplitude of vibratory rollers on the market is mostly fixed and cannot be adjusted. In the actual construction process, for different subgrade road sections, their tolerance to tamping is different. The impact force is too small, and it is not easy to stabilize the roadbed, so the vibratory roller needs to apply different amplitudes according to specific situations. In recent years, although movable eccentric blocks that can adjust the amplitude of vibratory rollers have appeared, the structures of existing movable eccentric blocks are relatively complicated, which are not only difficult to install, but also difficult to adjust. At the same time, complex structures of movable eccentric blocks are easily damaged dur...

AI Technical Summary

Problems solved by technology

[0002] At present, the vibration amplitude of vibratory rollers on the market is mostly fixed and cannot be adjusted. In the actual construction process, for different subgrade road sections, their tolerance to tamping is different. The impact force is too small, and it is not easy to stabilize the roadbed, so the vibratory roller needs to apply different amplitudes according to specific situations

In recent years, although there have been movable eccentric blocks that can adjust the amplitude of vibratory rollers, the structure of the existing movable eccentric blocks is relatively complicated, which is not only difficult to install, but also difficult to adjust. At the same time, the complex structure of movable eccentric blocks is easy to be damaged during vibration.

Obviously, the eccentric vibrating mechanism of the existing vibratory roller cannot meet the actual needs and needs to be improved urgently

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