The Research On Slewing Energy Saving System Of 23T Hydraulic Excavator

Hydraulic excavator is a large engineering machinery which used extremely wide. But since its birth, high fuel consumption, low utilization rate of energy and poor emission problems always exist. Therefore the domestic and foreign production enterprises of excavator with high efficiency and energy saving research has never stopped. The current focus is on the traditional excavator working process Recyclable energy recycling. Therefore, this paper selects Komatsu production PC220-8 excavator as the object of study, the rotary system was studied and put forward with a slewing braking energy recycling function model of excavator slewing system. The specific contents are as follows:1. Access to relevant literature, focusing on understanding the research status of hydraulic excavator slewing energy-saving system, find out the deficiencies of existing research, this lays the foundation for propose more efficient and energy-saving excavator slewing system.2. Comparative analysis of the advantages and disadvantages of various energy recovery, the 23 T hydraulic excavator presents a rotary brake energy indirect recovery system of scheme. This slewing system using the electronic control technology to automatically determine the working condition of slewing system, realizing the recycling of slewing braking energy.3. Establish the traditional excavator slewing system and new type slewing braking energy recovery system simulation model. According to the specific parameters of PC220-8 excavator matching the parameter of simulation model. From the theoretical analysis of the energy consumption of ordinary slewing system, and verified by simulation analysis; from the two aspects of flow and energy efficiency, comparative analysis of the new type slewing braking energy recovery system and traditional rotary system.4. From the two aspects of the theory and Simulation of excavator slewing braking energy recovery system energy efficiency is studied. The system simulation model is established by AMESim software, the simulation results show that:after optimization the parameters, the energy recovery efficiency of this slewing braking energy recovery system is 58.5%, energy recovery and utilization efficiency of 74.5%, energy saving efficiency of the system is 50.2%, to achieve the purpose of excavator slewing braking energy saving.5. In order to verify the feasibility and energy saving effect of slewing braking energy recovery system, designed to simulate the corresponding experiment platform. Introduces the principle of experimental scheme and developed a data acquisition platform based on LabVIEW. The experimental platform to provide a certain basis for further research on slewing energy saving system of excavator.