Abstract
The article proposes a constructive solution for improving the technological process of logging wood with rope skidders under conditions of an extended distance of the primary haulage of wood and a considerable length of a hauling-carrying rope for hilly-ridge and waterlogged production conditions, including for selective felling (especially relevant in the Northwestern Federal District of the Russian Federation , especially in the Leningrad region, where timber harvesting in the forests of the first category predominates). The proposed solution is a double-structure carriage, obtained by connecting the mounting of the travel wheels with two articulated joints, without changing the standard designs of the existing carriages. This design allows the carriage to provide the passage of turns with a bundle of skidded timber on the curved track of the carrying rope. When introducing rope skidders with articulated carriage (SHSK), the possibility of turning the track will expand the area of the available logging fund. The use of cable scudding systems with SHSK will allow organizing skidding routes, without significant wear of the ropes, with turning angles up to 45 degrees.
Highlights
In the Leningrad Region, the allowable cutting area is 8,932.9 thousand m3, with their actual use in the amount of 5,235.5 thousand m3
There are more than 50 thousand water ducts in the hydrographic network of the Leningrad Region
On plots where there are areas with a significant swampy terrain, the laying of mobile cable-rail hauler (MCRH) tracks is unprofitable, while a pack of hauled timber using cable haulers known in the forest industry reliably overcomes such areas in a suspended or semi-suspended position
Summary
In the Leningrad Region, the allowable cutting area is 8,932.9 thousand m3, with their actual use in the amount of 5,235.5 thousand m3. At the Department of Technological Processes and Machines of the Forestry Complex (TP and MFС) of Saint-Petersburg State Forestry University named after S.M. Kirov, the design of a mobile cable-rail hauler (MCRH) has been developed, which makes it possible to effectively move the harvested wood in areas with waterlogged and swampy soils.
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