摘要：装载机是一种道路工程机械，广泛应用于公路、铁路、港口等的土石方施

Abstract: Loader is a kind of road engineering machinery, which is widely used in excavation, bulldozing, compaction, etc. of earth and stone construction of roads, railways, ports, etc., as well as loading and unloading operations and transportation operations of goods in warehouses and logistics parks. . With the continuous development of mechanical engineering technology and continuous improvement of the production process, there are higher requirements for the performance of the loader. The rear suspension mechanism of the loader is an important mechanism for the expansion of the loader's functions. It can be connected to a variety of tools and has the relevant functions of hydraulic power output. When installing other mechanical structures, it is connected with the loader through the three-point suspension method. We design the three-point rear suspension for the loader here to fully meet the needs of operators and improve work efficiency. The three-point hanger system is a special method of fixing implements. The suspension hook is an additional device located between the three-point suspension device and the implement, which can be hooked up and separated on the driver's seat. Due to the special structure and function of the suspension hook, it should be specified in the relevant standards that the length of the pull rod is variable. Perform simulation experiments based on the structural data of the loader, establish a simulation model, optimize the parameters of the suspension mechanism, improve the working stability and the smoothness of the equipment lifting, and improve the working performance of the suspension mechanism. <br>Keywords: loader rear suspension; three-point suspension method; simulation experiment; parameter optimization

Abstract: Loader is a kind of road construction machinery, widely used in road, railway, port and other earth and stone construction excavation operations, dozering operations, crushing operations, as well as warehouse and logistics park cargo loading and unloading operations, transportation operations. With the continuous development of mechanical engineering technology, the continuous improvement of the production process, the performance of loaders also have higher requirements. The rear suspension mechanism of the loader is an important mechanism for the expansion of the loader function, which can connect a variety of implements and has the related functions of hydraulic power output. When other mechanical structures are installed, the loader is connected by three-point suspension. Here we design the loader with a three-point rear suspension to fully meet the operator's use needs and improve work efficiency. The three-point suspension system is a special method for fixing the implement. A suspension hook is an additional device located between a three-point suspension device and a implement that can be hooked and separated in the driver's seat. Due to the special structure and function of the suspension hook, the length of the lever should be indicated in the relevant standards to be variable. According to the structural data of the loader, the simulation experiment is established, the suspension mechanism parameters are optimized, the work stability and the smoothness of the appliance are improved, and the working performance of the suspension mechanism is improved.<br>Keywords: loader rear suspension, three-point suspension method, simulation experiment, parameter optimization

Abstract: loader is a kind of road engineering machinery, widely used in road, railway, port and other earthwork construction of excavation operation, bulldozing operation, compaction operation, as well as warehouse and logistics park cargo loading and unloading operation, transportation operation. With the continuous development of mechanical engineering technology, the continuous improvement of the production process, the performance of the loader also has higher requirements. The rear suspension mechanism of loader is an important mechanism to expand the function of loader. It can connect a variety of machines and tools, and has the function of hydraulic power output. When other mechanical structures are added, the loader is connected by three-point suspension method. Here we design the three-point rear suspension device of loader to fully meet the use needs of operators and improve work efficiency. The three-point hanger system is a special way to fix the machine. The suspension coupler is an additional device between the three-point suspension device and the implement, which can be connected and separated on the driver's seat. Due to the special structure and function of the hanger, it should be indicated in the relevant standards that the length of the pull rod is variable. According to the structure data of the loader, the simulation experiment is carried out, and the simulation model is established to optimize the parameters of the suspension mechanism, improve the working stability and the stability of the appliance lifting, and improve the working performance of the suspension mechanism.<br>Key words: Loader rear suspension; three-point suspension method; simulation experiment; parameter optimization<br>