Devices for trimming trees in urban areas

In an urban area, the care of large trees is problematic. When they age, branches, peaks should be trimmed. The use of logging machines is hampered by their large size and also significantly pollutes the urban environment, due to significant emissions of harmful substances into the atmosphere. In addition, the felling and delimbing process itself is not safe, and its use in an urban environment poses a threat to human life, the integrity of buildings and infrastructure. In most cases, to solve such problems, special workers (arborists) are used, who either climb onto the tree trunk, or are in the crane basket and cut the tree piece by piece. Such technologies are costly, unsafe and, at times, can cause inconvenience to others. The design and a detailed algorithm for the operation of a device are presented, which allows you to cut branches and trunks of trees and ensure their controlled descent to the ground without a threat to people and infrastructure. In this case, the operator controls the installation remotely. The device consists of movement and delimbing mechanisms, a chain saw for pruning large branches and tree tops, and a system for lowering the cut parts to the ground. The analysis showed that the proposed device is more effective than its counterparts and tree pruning by arborists.