Control method for improving compaction efficiency of road roller and vibration system thereof

Abstract

The invention discloses a control method for improving the compaction efficiency of a road roller and a vibration system thereof, and belongs to the field of engineering machinery. The vibration system mainly comprises a vibration pump, a vibration motor, an electromagnetic valve, a controller, an inherent frequency tester and a compactness instrument, the inherent frequency tester and the compactness instrument are electrically connected with the controller, the controller is electrically connected with signal ends on the two sides of the electromagnetic valve, the electromagnetic valve is connected with a variable displacement mechanism of the vibration pump, and the vibration pump is connected with the vibration motor. The vibration frequency and amplitude of the road roller are automatically adjusted according to the inherent frequency of the road surface in the compaction process, it is guaranteed that the road roller works near the optimal vibration frequency, the actual compaction condition of the road is judged in combination with a compactness instrument, adjusting is conducted in real time, the labor intensity of constructors is reduced, and the road compaction efficiency and quality are improved. The device is mainly used for compaction operation of the road roller.

Description

technical field [0001] The invention belongs to the field of construction machinery, and in particular relates to a control method for improving compaction efficiency of a road roller and a vibration system thereof. Background technique [0002] Most of the current road rollers have two working modes, high-frequency large-vibration compaction and low-frequency small-vibration compaction. In order to ensure the quality of road construction, the amplitude and frequency are generally set within the recommended range, and the size cannot be changed or the range of change is very small, that is, the road construction work is carried out at fixed frequency and amplitude. Fixed frequency and fixed amplitude are used for road construction work, and the controllability of the road roller is small. In order to achieve good road surface compaction quality, it often requires multiple measurements and multiple determinations of the compaction plan, which is inefficient. The actual quali...

AI Technical Summary

Problems solved by technology

When the working frequency of the road roller is close to the natural frequency of the road surface, the compaction quality is the best, and the natural frequency of the road surface changes with the number of compaction times and the compaction work, which will lead to two unfavorable factors: 1. The road roller does not work It must be able to work near the optimal vibration frequency, and the compaction quality is not high; 2. Frequently inspecting the compaction quality of the road surface and determining the compaction frequency and amplitude of the next working stage is time-consuming and laborious

Therefore, the efficiency of this compaction method is low, the compaction quality cannot be guaranteed, and the work of the road roller cannot be controlled according to the actual road compaction situation.

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