Balancing a Multirip Bench with Circular Reciprocating Saw Blades

Balancing is one of the major problems encountered in the design of mechanisms and specific moving parts of engineering systems. The article presents a method of constructing a rational scheme for balancing a crank-saw multirip bench in order to minimize unbalanced inertial forces. When the machine design features are taken into consideration, the balancing problem can be reduced to the problem of balancing a classic crankshaft. The results of analytical and numerical calculations are presented for the forces of inertia of the saw module and dynamic responses on the support shafts of the machine. The stress-strain state of the crank shaft subjected to inertial forces is analyzed using the finite element method in the NX Advanced Simulation environment. The authors propose the rational design of the crank shaft that satisfies the minimal deflection and stress criterion.

References

[1] Timofeev G.A. Teoriia mekhanizmov i mashin [Theory of mechanisms and machines]. Moscow, ID Iurait publ., 2010. 351 p.

[2] Teoriia mekhanizmov i mashin [Theory of mechanisms and machines]. Ed. Frolov K.V. Moscow, Vysshaia shkola publ., 1987. 496 p.

[3] Stukanov V.A. Osnovy teorii avtomobil’nykh dvigatelei i avtomobilia [Basic theory of car engines and vehicle]. Moscow, Forum-INFRA-M publ., 2005. 368 p.

[4] Dvigatel’ vnutrennego sgoraniia. T. 2: Dinamika i konstruirovanie [The internal combustion engine. V. 2: Dynamics and construction]. Eds. Lukanin V.N., Shatrov M.G. Moscow, Vysshaia shkola publ., 2007. 394 p.

[5] Blokhin M.A. Raschet i proektirovanie mnogopil’nogo stanka s krugovym postupatel’nym dvizheniem polosovykh pil’nykh poloten. Diss. kand. tekhn. nauk [Calculation and design multirip machine with a circular translational motion of band saw blades. Cand. tehn. sci. diss.]. Moscow, 2005. 151 p.

[6] Prokopov V.S. Razrabotka metodiki chislennogo analiza dinamicheskikh kharakteristik mnogopil’nogo stanka s krugovym postupatel’nym dvizheniem derevorezhushchikh poloten. Diss. kand. tekhn. nauk. [Development of the method of numerical analysis of the dynamic characteristics of the machine with a circular multirip reciprocating saw blades. Cand. tehn. sci. diss.]. Moscow, 2011. 205 p.

[7] Gavriushin S.S., Prokopov V.S., Blokhin M.A. Razrabotka metodiki chislennogo analiza dinamicheskikh kharakteristik mnogopil’nogo stanka s krugovym postupatel’nym dvizheniem derevorezhushchikh poloten [Development of Technique for Numerical Analysis of Dynamical Characteristics of Multisaw Machine with Circular Translational Motion of Wood-Cutting Blades]. Vestnik MGTU im. N.E. Baumana. Ser. Mashinostroenie [Herald of the Bauman Moscow State Technical University. Series Mechanical Engineering]. 2010, no. 4(81), pp. 108–118.

[8] Blokhin M.A., Gavriushin S.S. Proektirovanie «kolenchato-val’nogo» stanka v ramkakh kontseptsii ego zhiznennogo tsikla [Design «articulated–oval» of the machine within the concept of life cycle]. Stroitel’nye i dorozhnye mashiny [Construction and road building machinery]. 2015, iss. 3, pp. 11–17.

[9] Goncharov P.S., Artamonov I.A., Khalitov T.F., Denisikhin S.V., Sotnik D.E. NX Advanced Simulation. Inzhenernyi analiz [NX Advanced Simulation. Engineering analysis]. Moscow, DKM Press, 2012. 504 p.

[10] Gavriushin S.S., Baryshnikova O.O., Boriskin O.F. Chislennyi analiz elementov konstruktsii mashin i priborov [Numerical analysis of structural elements of machines and devices]. Moscow, Bauman Press, 2014. 480 p.

[11] Gavriushin S.S., Blokhin M.A., Fung B.V. Analiz lesopil’nogo stanka s ispol’zovaniem virtual’noi parametricheskoi modeli [Analysis sawmill machine using a virtual parametric model]. Nauka i obrazovanie. MGTU im. N.E. Baumana [Science and Education. Bauman MSTU]. 2014, no. 12. Available at: http://technomag.bmstu.ru/doc/743119.html (accessed 31 August 2015).