A Double Vibration Device for Equal-stroke Asphalt Paver

Abstract

The invention discloses an equal-stroke double-vibrating device of an asphalt spreading machine, which comprises an eccentric shaft and a front vibrating device, a rear vibrating device, a left fixed supporting part and a right fixed supporting part which are installed on the eccentric shaft, wherein the eccentric shaft comprises a left outside eccentric segment, a left non-eccentric segment, a left inside eccentric segment, a central non-eccentric segment, a right inside eccentric segment, a first right non-eccentric segment and a right outside eccentric segment which are sequentially arranged from left to right and are connected with each other, the eccentric directions of the left outside eccentric segment and the right outside eccentric segment are identical, the eccentric distances of the left outside eccentric segment and the right outside eccentric segment are e1, the eccentric directions of the left inside eccentric segment and the right inside eccentric segment are identical, the eccentric distances of the left inside eccentric segment and the right inside eccentric segment are e2, e1 is equal to e2, the eccentric directions of the left outside eccentric segment and the left inside eccentric segment are opposite, and the eccentric directions of the right outside eccentric segment and the right inside eccentric segment are opposite. According to the invention, the influence of inertia force on the spreading machine is effectively eliminated, the structure of the vibrating device of the spreading machine is simplified, and the vibration influence of the vibrating device on an ironing plate during working is reduced.

Description

technical field [0001] The invention relates to a vibrating device for a paver, in particular to a double vibrating device for an equal-stroke asphalt paver. Background technique [0002] Asphalt paver is an indispensable equipment in road mechanized construction. The vibrating device is one of the main working devices of the paver. It is close to the front of the screed and plays a role in compacting the paving material. Its working performance is important for the flatness and compaction of the paving surface. influences. The vibrating device is generally divided into two types: single vibrating and double vibrating, among which double vibrating is widely used in paver because of its higher pre-compaction degree. According to the forward direction of the paver, the double vibrating device includes a front vibrating part and a rear vibrating part, and an eccentric shaft is driven to rotate through the power device, thereby driving the front vibrating part and the rear vib...

AI Technical Summary

Problems solved by technology

Although the front vibration stroke is adjustable, it can provide users with a variety of vibration parameters to choose from, but it also has a negative impact on the paver and its performance

First of all, due to the complexity of the vibrating stroke adjustment mechanism, which requires high manufacturing and installation accuracy, it is often easy to cause inconsistent strokes at the left and right ends of the same vibrating device during adjustment, resulting in the vibrating device not working properly; During the reciprocating motion of the tamping device, because the strokes of the front and rear tamping parts are different and the direction of movement is not opposite, it will inevitably produce a large unbalanced inertial force during the working process, which will cause negative interference and adverse effects on the screed. Vibration effects, resulting in reduced machine performance and reduced pavement quality on the pavement

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