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SEEFOR (South-east European forestry), Vol. 10 No. 2, 2019.

Preliminary communication

https://doi.org/10.15177/seefor.19-10

Modernization of Harvesting and Processing Head

Konstantin Pavlovich Rukomojnikov ; Volga State University of Technology, Department of technology and equipment for timber and chemical industries, Lenin Sq., b. 3., RU-424 000 Yoshkar-Ola, Russia
Sergei Vladimirovich Vedernikov ; Volga State University of Technology, Department of technology and equipment for timber and chemical industries, Lenin Sq., b. 3., RU-424 000 Yoshkar-Ola, Russia
Victoriia Olegovna Kuptcova ; Volga State University of Technology, Department of technology and equipment for timber and chemical industries, Lenin Sq., b. 3., RU-424 000 Yoshkar-Ola, Russia

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page 181-185

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Abstract

Background and Purpose: The article is devoted to the reduction of energy consumption necessary for delimbing.
Materials and Methods: Branch delimbing method includes feeding the tree trunk through the ring formed by the delimbing knives and simultaneous reciprocator movement of the delimbing knives along the axis of the processed trunk. The distinctive feature of the construction is the presence of the beater unit comprising a pusher and a piston mounted inside a sealed housing.
Results: As a result of the suggested construction the force of the beater impact of the delimbing knife is increased. Using this method, the branches are removed not only due to the force generated when the knives come in contact with branches pushed by feed rolls moving the trunk, but also due to extra beater stress affecting the delimbing knife. The use of the aforesaid method and the construction of the mechanism allows to reduce energy consumption necessary for the delimbing process.
Conclusions: The design of harvesting and processing head proposed in this article can be used in the design and manufacture of logging machines and mechanisms. The technical solution may be an interesting advance of the delimbing process when processing trees, especially when cutting big branches or when cutting forces are temporarily higher than average force values.

Keywords

forestry machinery; harvester head; delimbing mechanism; tree; harvester; processor

Hrčak ID:

231561

URI

https://hrcak.srce.hr/231561

Publication date:

2.12.2019.

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