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导轨滚轴式静平衡台,由于具有结构简单、灵敏度高和测量误差较稳定等优点,所以对于静平衡要求较高,重量不太大的产品,常采用这种结构。我厂的螺旋桨整流罩的静平衡,管采用了这种结构,但长期以来设备灵敏度达不到要求,其滚动的阻力矩和设备的不平衡力矩的最大值都超过2克·米,其根本原因有三; 1.滚动轴同导轨之间的接触应力太大。经计算,其接触应力超过了10000公斤/厘米~2,超过了材料的屈服极限。 2.滚动轴的精度不高。当我们改用矩形
Roller-type static balance rail, due to its simple structure, high sensitivity and relatively stable measurement error, so for the static balance higher, the weight is not too large products, often use this structure. I plant the static balance of the fairing, the tube uses this structure, but the sensitivity of the device for a long time failed to meet the requirements of its rolling resistance torque and unbalanced torque of the maximum value of more than 2 grams per meter, the fundamental There are three reasons: 1. Rolling contact with the rail between the stress is too large. After calculation, the contact stress exceeds 10000 kg / cm ~ 2, exceeding the yield limit of the material. 2. Roller shaft accuracy is not high. When we use the rectangle