【摘要】 设计了树枝切削试验装置,研究了树枝直径和树枝喂入角对树枝切削力变化过程、最大切削力和切削功的影响。试验研究表明,树枝直径和树枝喂入角的变化对最大切削力和切削功的影响很大,当树枝直径从57mm增大到114mm时,最大切削力从14.4kN增大到48.9kN,增大2.4倍,而所需做的功从0.585kJ增加到3.6kJ,增大5.2倍;当树枝喂入角从0°变化到45°时,最大切削力下降约42%,切削功下降约26%。该研究结果为树枝粉碎机切削装置的设计和动力的选配提供了可靠的依据。更多还原

【Abstract】 It builds a test set for branch cutting. Based on the experiment, it studies the influence on the maximal cutting force and cutting power when the diameter of the branch and the feeding angle are changed. The results show, when the diameter of the branch changed from 57mm to φ114mm, the maximal cutting force increased from 14.4kN to 48.9kN, which increased 2.4 times, and the cutting power increased from 0.585kJ to 2.6kJ, increased 5.2 times, when the feed angle changed from 0 to 45 degrees, the maximal cutting force decreased about 42%, and the cutting power about 26%. The experiment provides a reliable basis for the choice of power and the design of the cutting device of a branch grinder.更多还原