Application and Configuration Technology of the Stump Lowering Device

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UDС

630*232.211

DOI:

10.17238/issn0536-1036.2017.3.123

Abstract

The key problem of the stump lowering in the process of reforestation is to increase the efficiency of the use of forest devices. The work objective is to investigate the influence of the design of a stump grinder, its operating device and a drive system on the efficiency of the process. The research program includes the impact analysis of the design features of a stump grinder MUP-4 and a design unit with a forward telescopic mounting of the operating device and hydraulic drive of the operating device on the basis of the forestry tractor LHT-100A on labor productivity and operator’s fatigue. The operating device of our design is driven by a hydraulic motor built into the operating element, and the telescopic boom of its mounting is spring-loaded. This is an important technical difference from the existing machine MUP-4 with an operating device drive from the system of cardan drives and reducers. The listed above features provide the stump lowering in the continuous motion mode, reduce the wear ?For citation: Orlovskiy S.N., Karnaukhov A.I. Application and Configuration Technology of the Stump Lowering Device. Lesnoy zhurnal [Forestry journal], 2017, no. 3, pp. 123–131.
of the drivetrain components of the unit and improve the fuel efficiency in the process. We obtain the dependences of labor productivity on the design of the operating device and its mounting. The choice of the design of the operating device and configuration features of the tractor forestry unit for the stump lowering is substantiated. The impact of the structure
of basic and design devices on the frequency of the operator's influence on the control levers in the technological process is considered. Based on the obtained results, we can justify the structure and configuration of a tractor forestry stump lowering unit with the operating device in the form of a forward mounting cutter and determine its power parameters, which will increase labor productivity and reduce operator fatigue. We have made the conclusions about the need to change the design of a stump grinder MUP-4 and have proved the expediency of changing a drive of the operating device and its hinged system, which will allow carrying out the technological process in the continuous motion mode with a 4-fold increase in labor productivity and a 2-fold decrease in the operator's load.

Authors

S.N. Orlovskiy1, Candidate of Engineering Sciences, Associate Professor A.I. Karnaukhov2, Candidate of Engineering Sciences, Associate Professor

Affiliation

1Krasnoyarsk State Agrarian University, pr. Mira, 90, Krasnoyarsk, 660049, Russian Federation; e-mail: info@kgau.ru, orlovskiysergey@mail.ru 2Siberian State Aerospace University named after academician M.F. Reshetnev, pr. Mira, 82, Krasnoyarsk, 660049, Russian Federation; e-mail: info@sibstu.ru, Sky_angel_33@mail.ru

Keywords

grubbing, stump lowering technology, unit deficiency, new construction, option arrangement, tool.

For citation

Orlovskiy S.N., Karnaukhov A.I. Application and Configuration Technology of the Stump Lowering Device. Lesnoy zhurnal [Forestry journal], 2017, no. 3, pp. 123–131. 10.17238/issn0536-1036.2017.3.123

References

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