Performance Analysis And Experimental Study Of Key Transmission Parts Of Agricultural Winch

The modernization of industry and agriculture has been aided by the rapid expansion of the social economy.The construction of efficient contemporary livestock farms has become the development trend of the livestock sector,as people’s living standards continue to increase.Large modern livestock farms require large winches and other lifting equipment for automatic feed/water,and in order to adapt to the needs of farms,a low-noise,compact structure is frequently used to smooth transmission of worm drive,taking into account design production and manufacturing costs,and achieving the corresponding service life,the capstan manufacturing process must be optimized,and the appropriate materials must be chosen.The HP-20 agricultural winch is used as the research object,and digital modeling design,material selection method based on friction and wear tests,modal and dynamic analysis,life test and other aspects of the worm and worm gear,the core transmission accessory of the agricultural winch are all investigated.The following are the specific contents and outcomes:(1)Parametric design modeling of worm and worm wheel using SolidWorks secondary development tool to determine key design parameters and related functions of worm and worm wheel using VS program and embedded function call to complete the digital modeling of worm and worm wheel.(2)considering the cost of production and processing convenience,of several worm gear materials with potential applications for the friction and wear test of material experiment analyzed the three groups of worm pair by the friction force and friction coefficient is obtained using confocal microscopy experimental sample of grinding crack surface morphology,agricultural winch of worm gear and worm drive selection method provides the basis.(3)On the basis of the worm and worm gear 3d parametric model,the finite element analysis model is established.The prestressed modal analysis and transient dynamic analysis of worm and worm gear are carried out,and the cloud diagram of equivalent stress,total displacement deformation and modal shape of worm pair is obtained.Analyze whether the maximum tooth surface stress of worm and worm gear meets the design requirements.(4)Use the materials selected in the experiment to conduct the service life experiment of the prototype.Through the tests of four prototypes,the worm pair prototype composed of steel worm and QT500-7 worm gear finally meets the service life requirements and meets the actual use requirements.