According to the conditions of correct mesh between the wheel rin and chain of chain saw, the theoretical formula of chain wheel design is presented for different pitch of chain.
The chain sprocket design theory is applicable for more than 15mm(t≥15mm) chain pitch of chain saw and chain sprocket design in the domestic and overseas, but for less than 10 26mm(t≤10.26mm) chain pitch chain sprocket design the application of current chain sprocket design has some faults and limitation.
The orthogonal test was conducted on the test table. The optimal cutting condition for the chain saw with the pith of 10.26mm under different output power has been obtained. The results have significance for design, improvement and usage of the power chain saw.
A series of basic formulas,which are used for designing saw chains and sprockets,were built upon contour parameters of new-type sw chains and sprockets by reference to geometry of usual chain drives.
The formulas concern two kind of saw chains with same pitch and different pitch and three kind of sprockets,which are rim sprocket,spur sprocket and nose sprocket.
Quantitative observations on thermal and metabolic responses of 32 patients exposed to moderate cold of vibration hazards due to using chain saw were performed.
The phase transitions of nearest-neighbour interacting Ising models on self-avoiding walk (SAW) chains on square and triangular lattices have been studied using Monte Carlo technique.