Research On The Electrical-hydraulic System Of Intelligent Walking Excavator

With the rapid economic development in recent years, the ability to transition excavators, obstacle, mobility responsiveness put a higher demand. Advanced computer technology, mechanical hydraulic technology, control technology in intelligent walking excavator to meet the above requirements. Intelligent walking excavator can climb vertical obstacle not only jobs but also jobs in the environment or under the morass of the inclined work surface and water. Its working device using multi-joint telescopic boom, with fast connection means replacement power tool to achieve other functions in addition to mining, including loading fork, crushing, drilling, drilling, lifting and other functions, to enhance the intelligent walker Mining machine during the operation the ability to solve practical problems.First, the paper describes the system structure and operation principle of intelligent walker hydraulic excavator, walking excavator and various forms of work features and acts are classified on the working methods of each state were explained step by step; the establishment of a whole envelope for a deep understanding of intelligent walking hydraulic excavator operating characteristics.Secondly, detailing the parameters of intelligent walking excavator, and its detailed analysis and calculations in a variety of job status, and are subjected to various load pressure of the hydraulic latching system for analysis and correction fluid control nuclear power the system provides the basis for subsequent analysis performed electro-hydraulic control system to provide the fundamental basis.Then, according to the arrangement of intelligent walking excavator structure and mechanism designed hydraulic system schematics and electrical schematics. System uses a multi-channel slip ring, key components of the electro-hydraulic pilot multifunction handle like.Finally, AMESim engineering analysis software, intelligent walking excavator working devices and electro-hydraulic control system established energy coupling dynamics model and draw the relevant simulation curve. According to the simulation curve can be calculated and plotted curve corresponding to an error value, simulation error is easy to see the pressure three hydraulic cylinder rod chamber are less than 10 bar. In order to reduce the mining process vibration and pressure shock, digging a smooth, thereby improving the operability of the excavator, safety, comfort has great significance for the study to achieve a predetermined trajectory tracking bucket sports, such as horizontal line track movement and diagonal line has a certain guidance and reference.Through the study of intelligent walking excavator, we can clearly understand: it is tantamount to the level of innovation in the robot, and therefore, its in-depth study will effectively promote the comprehensive development of construction machinery and equipment.