Modernization of cable skidding by finding the boundary conditions

¹ Saint Petersburg State Forest Technical University, 5, Institutskiy Lane, Saint Petersburg, 194021, Russian Federation
² Syktyvkar Forest Institute - branch of the Saint-Petersburg State Forest Technical University named after S.M. Kirov, 39, Lenin Street, Syktyvkar, 167982, Russian Federation
³ Moscow Aviation Institute (National Research University), 4, Volokolamskoe Highway, Moscow, 125993, Russian Federation

^* Corresponding author: fsvoikin@mail.ru

Abstract

The article formulates the boundary conditions for the stability of the carriage during the passage of the carriage of the swivel shoe of the intermediate support, which makes it possible in the future to find the moment of friction between the hinge (determining the dependencies on the optimal distances between the supports and the height of the supports) to expand the theoretical and practical foundations for the use of cable skidding installation (CSI) with turns of the tracks in the plan. A constructive solution for the improvement of CSI by using a carriage with a double articulated wheel pair and an articulated carriage is proposed. This design allows the carriage to ensure the passage of turns by a bundle of skidding timber on a curved route of a non-existent cable. It is proposed to use existing designs of carriages in terms of moving and lifting loads. By connecting the fastening of the running wheels with two articulated joints, we actually get two dependent carriages moving along the carrier cable on one roller, which easily overcomes the turns of the cable. A significant advantage of articulated carriage is that its use does not require changes in the design of existing CSI. As well as the possibility of retrofitting any existing CSI with a carriage of the proposed design.