Analysis Of Energy Consumption Characteristics Of Steering System Of 816G Loader Priority Valve

As a multi-purpose construction machine,the loader can carry out the materials required for short-distance loading and unloading and transportation engineering operations,and can also be used for rough leveling and cleaning of the site,playing an important role in the national infrastructure construction.China's loaders use the steering system imported from abroad in the past century,so the understanding of the specific performance of the steering system is less.This paper analyzes the steering system of the 816 G loader under different working conditions,and the steering system of the 816 G loader.The energy consumption form and the energy consumption route are analyzed in detail,and the energy consumption characteristics of the loader of this model are obtained,which provides a direction for future optimization.In this paper,the key hydraulic components of the 816 G loader steering system,the priority valve and the steering gear are the research objects,and the analysis and research work is carried out based on AMESim software and actual experiments.Firstly,in-depth understanding of the actual working conditions and working conditions of the existing 816 G loader,which is common in China's existing loaders,especially on the market,compare and refer to the theoretical reality of the existing research,and load the model at the same time.The hydraulic system of the machine is split,summarizing and streamlining the main components and structure of the steering system.According to the actual structure and working principle of the 816 G loader steering system valve block,the AMESim simulation platform was used to establish the HCD(Hydraulic Component Design)model of the priority valve and the steering gear in the hydraulic control state,respectively,and the working characteristics of the priority valve and the steering gear respectively.The simulation study is carried out to analyze the function of the priority valve and the key parameters affecting the output flow characteristics of the priority valve.The dynamic response characteristics and energy loss of the steering gear under the hydraulic control state are analyzed in detail during the steering process.The simulation of different working conditions and the overall motion simulation of the steering system under different working conditions.In order to verify the accuracy of the experiment,eight pressure sensors were installed on the 816 G loader,and the pressure changes of various parts of the loader hydraulic system were changed multiple times while changing the engine speed,working environment and load,and the simulation data.comparing.At the same time,the energy loss of each component of the hydraulic system under different working conditions is obtained through the calculation of power,which provides a theoretical basis for energy saving and structural optimization of the loader,and also provides a specific method and implementation for the energy analysis method of hydraulic system in China.Program.This paper compares the theory,simulation and experimental results of the steering system of the 816 G loader.The results show that the energy waste will increase significantly when the engine speed is high,and the power ratio of the steering hydraulic cylinder increases when the ground environment is more complicated.However,the steering time is significantly increased,which in turn increases energy consumption.The most energy-consuming component is the steering gear,so the optimization of the loader steering system should be mainly in the commutator.At the same time,the driver should reduce the engine speed as much as possible and reduce the energy consumption.