Characteristics Analysis of Hydraulic System for Screw Distributor of Asphalt Paver

Abstract:

The hydraulic system of screw distributor plays an important role in asphalt paver. It belongs to the speed-regulating system of pump controlled motor. The motor speed and direction of rotation can be controlled by variable delivery pump. Thus the transferring speed of bituminous mixture can be adjusted. The mathematical model of the system is presented, and dynamical characteristics are analyzed. Simulation results indicate that the system is suitable to screw distributor and has high operating efficiency. By changing the angle of swashplate, the rotating speed of motor can be adjusted proportionally. The undamped natural frequency of the system is lower for two reasons. One reason is only one line controlled by the trapped oil spring rate. The other reason is larger volume of pump.

• Periodical: Advanced Materials Research (Volumes 774-776)
• Pages: 366-369
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.774-776.366
• Online since: September 2013
• Authors: Long An Chen, Zhi Nan Mi
• Keywords: Dynamic, Paver, Screw Distributor

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