The orchard twig shredder is an important tool for orchard twig treatment and efficient resource utilization. It has certain ecological benefits for environmental protection. The control system is the key core component of the twig shredder, and its performance directly affects the performance and effect of the whole machine. The research status of the control system of the orchard shoot shredder at home and abroad is expounded from three aspects: the feeding control system, the crushing control system and the collecting box control system. It is analyzed that the current control system of orchard shoot shredder in my country has the problems of simple control system, poor stability, relatively single function and lack of innovation. It points out the development trend of improving control technology, improving automation and intelligence level, supporting each other with multiple systems, and reducing the production of ecological environment pollution and so on. It provides a reference for the study of the control system of the orchard shoot shredder.

Aiming at the problems of high operation intensity, high cost and inability to adjust the parameters of the mechanical flower thinning device in the flower thinning link, and combined with the agronomic requirements of the modern orchard planting mode, a traction flower thinning machine is designed. By adjusting the main parameters such as the rotating speed of the thinning machine, the working position, the cutting angle and the interval of the rubber strips, the thinning operation is carried out, so as to improve the use range of the device in the management of the orchard, and the traction mechanism, transmission mechanism, link mechanism, rack, Hydraulic motor, guide rail, rotating shaft, rubber strip for structural design. Combined with the working environment and load force of the thinning machine, the hydraulic control system is selected and designed. It is determined that the hydraulic cylinder is 25 mm, the diameter of the piston rod is 13 mm, the maximum load is 2.5 MPa, the length of the guide sleeve is 17 mm, the hydraulic pump is 2.5 MPa, the motor is 2.5 kW, and also to verify the stability of the piston rod. Field tests show that when the forward speed of the whole machine is 4 km/h, the speed of the glue strip is 300-400 r/min, and the interval between the glue strips is 5 cm, the thinning rate is 29%-35%, which meets the agronomic requirements of the flower thinning stage.

Flower and fruit thinning is an important link in orchard management, and it is one of the most effective measures to ensure orchard yield and fruit quality. At present, flower and fruit thinning in China is mainly manual, and the degree of mechanical equipment is low. The lack of scientific management technology, backward automation management level, and the labor shortage have become the biggest obstacles to developing orchards in China. The traditional manual operation methods could not meet the demand of orchards. Full automation and mechanization problems need to be solved. In this paper, the hydrophobic flower thinning stage management technology, mechanical equipment, and chemical treatment methods at home and abroad were analyzed. Looking forward to the orchard flower and fruit thinning management technology, this paper puts forward that the orchard flower and fruit thinning will gradually develop towards automation, intelligence, and precision in the future, and puts forward development ideas and Countermeasures for comprehensively improving the orchard management level in China.