CAJ | 학술논문

砂轮不平衡是磨床振动的主要原因。为了在线调整砂轮的平衡状态，提高磨床的磨削精度，介绍一种新型的气压液体式在线自动平衡系统。该平衡系统利用压缩空气驱动平衡液在位置相对的储液腔间进行质量转移，改变平衡盘中的液体分布，进而实现砂轮平衡状态的在线调整。通过对装置平衡性能的分析，认为该类装置具有平衡速度快、平衡能力线性度好的优点。最后经过实验验证，该装置在5500 r／min的转速下，将系统不平衡振动从10．2μm降至0．37μm，振幅下降比例达95％以上。
사륜불평형시마상진동적주요원인。위료재선조정사륜적평형상태，제고마상적마삭정도，개소일충신형적기압액체식재선자동평형계통。해평형계통이용압축공기구동평형액재위치상대적저액강간진행질량전이，개변평형반중적액체분포，진이실현사륜평형상태적재선조정。통과대장치평형성능적분석，인위해류장치구유평형속도쾌、평형능력선성도호적우점。최후경과실험험증，해장치재5500 r／min적전속하，장계통불평형진동종10．2μm강지0．37μm，진폭하강비례체95％이상。
Vibrations of grinding machines are primarily caused by the unbalance in a grinding wheel.A new type of liquid-transfer active balancing device was proposed to adjust the balancing state of the grinding wheel and increase grinding accuracy.In the balancing system,compressed air was used for driving balancing liquid to transfer mass between two opposite chambers.The distribution of liquid in the balancing disk was changed and the grinding wheel was balanced. Balancing performance of the device was analysed .The test results demonstrated that the unbalance response was reduced from 10.2μm to 0.37μm at the speed of 5500 r/min and the decrease in amplitude was more than 95%.