Power matching control system for novel energy-saving double-drum vibratory roller

Abstract

The invention discloses a power matching control system for a novel energy-saving double-drum vibratory roller. The power matching control system comprises a controller, a travel state control device, a frequency adjusting switch, a compaction/travel selection switch of the travel state and the compaction state of a roller and a speed sensor for detecting the rotate speed of an engine of the roller in real time, wherein a travel pump electromagnetic valve and a travel motor electromagnetic valve are controlled by the controller; a vibratory pump electromagnetic valve is connected with the controller which staggers the power peak values of a travel mechanism hydraulic drive system and a vibratory compaction hydraulic drive system by controlling the starting time of the vibratory pump electromagnetic valve; moreover, when the roller is in compaction work mode, the vibratory pump electromagnetic valve is correspondingly controlled and started by the controller according to a signal detected by the speed sensor. The power matching control system has reasonable design, simple use and operation, reliable performance and good use effect; moreover, the control system can effectively reduce the installed power of the vibratory roller, reduce power consumption and save use cost while reliably restraining the momentary power of the travel system and the vibratory system of the roller.

Description

technical field [0001] The invention belongs to the technical field of road construction machinery, and in particular relates to a new energy-saving power matching control system for double-drum vibratory road rollers. Background technique [0002] The double-drum vibratory road roller is a compaction machine for compacting asphalt mixture, and its working objects have relatively high requirements on the quality of the compaction operation. In order to achieve qualified compaction quality, the national standard stipulates that the compaction distance during the working process of the double-drum roller is 60-80 meters, that is, the compaction process of the double-drum vibratory roller is a cyclic vibration compaction operation. Therefore, the tandem roller is a reciprocating operation machine, in which the dynamic process of starting and stopping occupies more than 25% of the total operation time, and the power demand and pressure impact during the starting and stopping pro...

AI Technical Summary

Problems solved by technology

When the engine power cannot meet the requirements of the dynamic process of the dual system, the dynamic characteristics of the traveling system and the vibration system will deteriorate, which will directly cause serious problems affecting the quality of the work during the start-up phase; and due to the simultaneous start of the dual systems, the peak load of the walking start-up will be formed Due to the coincidence with the peak value of the vibration starting load, it is necessary to match a high-power engine to ensure normal operation, resulting in a huge waste of power and greatly increasing the cost of using the vibratory roller

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