Fraud Warning
We officially declare that NO MONEY from authors and members of the Editorial Board IS CHARGED! A big request to ignore spam e-mails.

Address: 17 Naberezhnaya Severnoy Dviny, Arkhangelsk 163002 Russian Federation. Northern (Arctic) Federal University named after M.V.Lomonosov. Office 1425

Phone / Fax: (818-2) 21-61-18
E-mail: forest@narfu.ru
http://lesnoizhurnal.ru/en/

Lesnoy Zhurnal

Improving the Feeder’s Working Capacity of Timber Processing Equipment

Версия для печати

E.A. Pamfilov, G.A. Pilyushina, E.V. Sheveleva, Ya.S. Prozorov, P.G. Pyrikov

Complete text of the article:

Download article (pdf, 0.7MB )

UDС

674.05:620.16

DOI:

10.17238/issn0536-1036.2019.2.102

Annotation

The working capacity of the logging and wood processing equipment feeding mechanisms is determined by the achievable coupling of the roller’s working elements with the movable blanks. The coupling stability depends significantly on the geometry specified in the design and implemented in manufacturing and physicochemical properties of the materials of tenons that capture, hold and continuously move the blanks into the processing zone. During operation, the geometrical parameters of tenons are changing due to wearing out, which is a result of a complex set of mechanical, chemical, thermal and other influences that accompany friction and deformation interaction of working elements of feeders and movable wood. Worn down tenons do not provide reliable movement of a blank, due to its slippage, which causes quality reduction of final products and leads to intensification of the cutting tool wearing out. At the same time the features of influence of tenon geometrical form on the mating forces of feeding rollers with movable blanks in conditions of development of the tribotechnical characteristics, which provide their working capacity, are not studied sufficiently for the practical use. Therefore, the research purpose is to clarify the conditions of friction-mechanical interaction of working elements of rollers with wood and to identify patterns of wearing out of tenon working surfaces, which allows theoretically substantiate their rational geometrical shape and requirements for the physicochemical characteristics of recommended materials. The acting load’s principles realized in the zone of contact of the metal surfaces of tenons with wood at displacement of blanks are considered for these pur-poses. The process of the force interaction change of tenons with blanks is shown beginning with the moment of contact of a certain tenon until it leaves the coupling. Its analysis showed that already at the beginning of the contact the shock bending load begins to act on the top of a tenon. The load in case of peak values often leads to wearing out by crumbling sufficiently large microvolumes of the feeding tenons. The probability of development of such fracture pattern is the greatest with insufficient strength of the using material and presence of structural defects, especially unfavorably located microcracks, and the action of dangerous tensile residual stresses. These factors also significantly affect the corrosion-mechanical wearing out of the working surfaces of tenons and their resistance movement in wood. Thus, the main factor of effective transportation of a blank to the processing zone and achievement of high wearing resistance of feeding rollers is optimization the tenon geometry, properties of the assigned materials and technology of strengthening treatment of the concerned details.
For citation: Pamfilov E.A., Pilyushina G.A., Sheveleva E.V., Prozorov Ya.S., Pyrikov P.G. Improving the Feeder’s Working Capacity of Timber Processing Equipment. Lesnoy Zhurnal [Forestry Journal], 2019, no. 2, pp. 102–110. DOI: 10.17238/issn0536-1036.2019.2.102

Authors

E.A. Pamfilov1, Doctor of Engineering Sciences, Professor H-1866-20190000-0002-1522-7246
G.A. Pilyushina1, Candidate of Engineering Sciences H-1699-20190000-0002-2422-0919
E.V. Sheveleva2, Candidate of Engineering Sciences H-2080-20190000-0002-1763-6932
Ya.S. Prozorov1, Candidate of Engineering Sciences, Associate Professor H-2243-20190000-0002-7900-5693
P.G. Pyrikov1, Doctor of Engineering Sciences, Professor

Authors job

1Bryansk State Technical University, bul’var 50-letiya Oktyabrya, 7, Bryansk, 241035, Russian Federation; e-mail: epamfilov@yandex.rugal-pi2009@yandex.ru
2Bryansk State Engineering and Technological University, prosp. Stanke Dimitrova, 3, Bryansk, 241037, Russian Federation; e-mail: elshev78@yandex.ru

Keywords

frictional and mechanical contact, feeding rollers, working capacity, friction, coupling, wearing out, geometrical shape, tribological parameters, load

References

1. Bershadskiy L.I. Fundamentals of Structural Adaptability Theory and Transition States of Tribosystems and Its Practical Application to Solving the Problem of Improving Reliability of Toothed and Worm Gears: Dr. Eng. Sci. Diss. Kiev, 1982. 394 p.
2. Gorokhovskiy K. F., Livshits N.V. Vehicles and Equipment Logging and Timber Storage Works: Educational Textbook. Moscow, Ekologiya Publ., 1991. 528 p.
3. Pamfilov E.A., Pilyshina G.A. Possibilities and Prospective Ways to Increase Working Capacity of Forest Sector Machines and Equipment. Lesnoy Zhurnal [Forestry Journal], 2013, no. 5, pp. 129–141.
4. Pilyushina G.A. Working Capacity Improvement of Feeder’s Details of the Sawmill Equipment: Cand. Eng. Sci. Diss. Bryansk, 2004. 140 p.
5. Pilyushina G.A. Pamfilov E.A. Enhancing Operational Capacity of Sawmill Equipment. Lesnoy Zhurnal [Forestry Journal], 2007, no. 4, pp. 85–91.
6. Pilyushina G.A., Pyrikov P.G., Ruhletka A.S. Working Capacity Improvement of Working Bodies of Equipment and Cutting Tools for Processing of Non-Metallic Materials. STIN, 2013, no. 2, pp. 9–13.
7. Pilyushina G.A., Sheveleva E.V. Study of the Friction Clutch-Mechanical Finger Moving Unit. Fundamental Research and Innovative Technologies in Mechanical Engineering: Collection of Academic Papers of the 5th Int. Sci. Conf., Moscow, November 8–9, 2017. Moscow, IMASH RAN Publ., 2017, pp. 211–214.
8. Characterization of Corrosion Products on Steel Surfaces. Ed. By Yo. Waseda, Sh. Suzuki. Berlin, Springer-Verlag Berlin Heidelberg, 2006. 297 p. DOI: 10.1007/978-3-540-35178-8
9. Darmawan W., Rahayu I.S., Tanaka C., Marchal R. Chemical and Mechanical Wearing of High Speed Steel and Tungsten Carbide Tools by Tropical Woods. Journal of Tropical Forest Science, 2006, vol. 18, no. 4, pp. 255–260.
10. Jellesen M.S. Tribocorrosion Properties of Metallic Materials and Effects of Metal Release. Ph.D. Thesis. Department of Manufacturing Engineering and Management, Technical University of Denmark (DTU), 2007. 74 p.
11. Mischler S. Triboelectrochemical Techniques and Interpretation Methods in Tribocorrosion: A Comparative Evaluation. Tribology International, 2008, vol. 41, iss. 7, pр. 573–583. DOI: 10.1016/j.triboint.2007.11.003
12. Pamfilov Е.А., Lukashov S.V., Prozorov Ya.S. Mechanochemical Fracture of the Components of Wood-Cutting Equipment. Materials Science, 2014, vol. 50, iss. 1, pp. 148–155. DOI: 10.1007/s11003-014-9703-x
13. Pamfilov E.A., Pilushina G.A., Polosov V.I. Conditions of Maintenance of Stable Frictional Contact of Submitting Rollers Woodworking Machines. Proceedings of BALTTRIB 2007 International Scientific Conference, Kaunas, November 21–23, 2007. Kau-nas, 2007, pp. 67–71.
14. Pilyushina G.A., Pyrikov P.G., Rukhlyadko A.S. Improving the Performance of Machining Tools for Nonmetallic Materials. Russian Engineering Research, 2013, vol. 33, no. 9, pp. 532–535. DOI: 10.3103/S1068798X13090128
15. Porankiewicz B., Sandak J., Tanaka Ch. Factors Influencing Steel Tool Wear When Milling Wood. Wood Science and Technology, 2005, vol. 39, iss. 3, pp. 225–234.
16. Silman G.I., Pamfilov E.A., Gryadunov S.S., Gruvman A.I. Effect of the Structure of Chromium-Vanadium White Irons on Their Wear Resistance. Metal Science and Heat Treatment, 2007, vol. 49, no. 7–8, pp. 405–408. DOI: 10.1007/s11041-007-0076-8
17. Wood R.J.K. Tribo-Corrosion of Coatings: A Review. Journal of Physics D: Ap-plied Physics, 2007, vol. 40, no. 18, pp. 5502–5521. DOI: 10.1088/0022-3727/40/18/S10

Received on November 21, 2018


Improving the Feeder’s Working Capacity of Timber Processing Equipment

 

INDEXED IN: