Design And Experiment Of Self-Propelled Feed Recovery And Spreader For Cattle And Sheep

In recent years,due to policy support and increasing demand for dairy products and beef and mutton from the people,cattle and sheep farms have developed rapidly and their scale has been continuously increasing.In order to ensure the quality of beef and sheep meat and milk,the breeding farm will scatter an excessive amount of fully mixed ration feed for the consumption of cattle and sheep,which leads to a large amount of surplus feed on the feeding channel.At present,the mode of loading machines and transport vehicles is used in China to collect remaining feed.This mode is labor-intensive and inefficient.Therefore,this article designs a self-propelled cattle and sheep feed recycling and scattering machine,which can recycle and reuse the remaining feed on the feeding channel,reducing the waste of feed.This machine can achieve the recycling,transportation,and scattering of feed,greatly improving work efficiency,reducing labor costs,and promoting the large-scale development of cattle and sheep farms.The research content and conclusions of this article are as follows:(1)Based on the actual situation of the cattle and sheep breeding farm,the design scheme of the self-propelled cattle and sheep feed recycling and scattering machine is determined.The entire machine is mainly composed of a recycling mechanism,a scraper conveying mechanism,a carriage conveying device,a scattering mechanism,and a hydraulic system.The recycling mechanism is mainly composed of a disc brush,a rolling brush,a twisting dragon,and a receiving side plate.Through calculation,its main parameters,motion trajectory,driving torque,and consumption power have been determined,and hydraulic motors and pumps have been selected.Calculate the sprocket speed,drag on the scraper,and power consumption in the scraper conveyor mechanism.Design and calculate the belt in the spreading mechanism,determine the external parameters,rotational speed,spreading distance,and select the driving motor.(2)Conduct single factor simulation and orthogonal experiments on the material receiving process of the recycling mechanism using EDEM software.Through a single factor experiment,it was found that the recycling efficiency showed an increasing trend with the increase of disc brush speed;As the rotational speed of the rolling brush increases,the recovery efficiency shows a trend of first increasing and then decreasing;As the pitch of the rolling brush increases,the recovery efficiency shows an increasing trend;As the forward speed increases,the recycling efficiency shows an increasing trend.By using methods such as range analysis and variance analysis to analyze the results of orthogonal experiments,it was found that the primary and secondary order of the impact of each factor on recovery efficiency is forward speed,disc brush speed,rolling brush pitch,and rolling brush speed.The optimal solution was ultimately determined to be a forward speed of 1 m/s,a disc brush speed of 380 r/min,a rolling brush pitch of 2400 mm,and a rolling brush speed of 510 r/min.(3)Use EDEM software to conduct single factor simulation and orthogonal experiments on the spreading process.Through a single factor experiment,it was found that as the height of the belt above the ground increases,the feed amount per unit length shows a trend of first increasing and then decreasing,the effective feeding rate shows a trend of first increasing and then decreasing,and the uniformity of spreading material shows a trend of first increasing and then decreasing.As the distance between the belt and the retaining wall increases,the feed amount per unit length shows a decreasing trend,the effective feeding rate shows a trend of first increasing and then decreasing,and the uniformity of material distribution shows a decreasing trend.As the belt speed increases,the feed volume per unit length shows an increasing trend,the effective feeding rate first increases and then decreases,and the uniformity of material distribution shows an increasing trend.As the forward speed increases,the feed volume per unit length shows a decreasing trend,the effective feeding rate shows an increasing trend,and the uniformity of material distribution shows an increasing trend.Through range analysis and variance analysis of the orthogonal experimental results,the optimal solution was determined to be a forward speed of 0.9 m/s,a belt height of 600 mm above the ground,a belt speed of 2 m/s,and a distance of 1100 mm between the belt and the retaining wall.(4)We have developed a self-propelled cattle and sheep feed recycling and scattering machine and conducted field tests on the prototype.All mechanisms of the prototype are operating normally and can smoothly complete the recycling,transportation,and scattering of remaining feed.Through on-site experiments,the recovery rate was measured to be 97%,the feed amount per unit length of the spreading material was 8.26 kg/m,the effective feeding rate reached 99.4%,and the uniformity of the spreading material reached 88.6%,achieving the expected effect.