Optimum parameters determination of the gripping and cutting device vibration suspension

Abstract

The article presents the optimum parameters determination results of the gripping and cutting device vibration suspension in the process of holding the tree in a vertical position. Two kinematic schemes of the vibration suspension were considered, and their equilibrium equations for static calculation were compiled. To determine the optimum parameters of the vibration suspension the geometric parameters of its structural elements were selected at which the torque on the drive shaft was minimum. The changes in the lengths of the rotation arm and suspension arm, the arm fixing distance to the boom were justified as variable parameters. As a result of varying the set parameters graphs of the drive shaft moment change depending on the tree weight were obtained. As a result of the study, it was determined that with an increase in the arm fixing distance to the boom, the torque on the drive increases, and with an increase in the parameters of the rotation arm and the suspension arm, on the contrary, decreases. Therefore it is recommended to increase the arm fixing distance to 201 mm, and the rotation and suspension arms, on the contrary, reduce to 200 and 86 mm, respectively. The results obtained made it possible to determine more optimum parameters of the gripping and cutting device vibration suspension, which can be used in further theoretical and practical research of the gripping and cutting device design with vertically held tree.