工业平缝机振动测试  

Vibration Test of Industrial Lockstitch Sewing Machine

作　　者：阮林兵 李伟男 林晓晓 郏彬辉 祝书伟 Ruan Linbing;Li Weinan;Lin Xiaoxiao

机构地区：[1]杰克科技股份有限公司,浙江台州318010 [2]浙江杰克智能缝制科技有限公司,浙江台州318010

出　　处：《机械制造》2024年第5期80-84,共5页Machinery

摘　　要：针对工业平缝机存在的振动问题,对工业平缝机进行振动测试,分析振动响应,识别振动源。通过振动测试,得到最高转速下工业平缝机不同位置的振动频谱,以及不同转速下的振动频谱,同时得到加速度随转速变化曲线。测试结果表明,不同转速下工业平缝机加速度峰值对应的频率约为转动频率的整数倍,最高转速下1倍转动频率对应的加速度最大。工业平缝机在160~170 Hz和260~270 Hz频率范围内存在固有频率,并且有四个共振转速,3250 r/min转速下共振最为严重。在非共振转速下,1倍和2倍转动频率对应的加速度在整机振动加速度中占比较大,随着转速的加快,1倍和2倍转动频率对应的加速度增大。In view of the vibration problem existing in the industrial lockstitch sewing machine,the vibration test of the industrial lockstitch sewing machine was carried out,the vibration response was analyzed,and the vibration source was identified.Through the vibration test,the vibration spectrums of different positions of the industrial lockstitch sewing machine at the highest speed and the vibration spectrums at different speeds were obtained,and the acceleration curve changed with the rotation speed was obtained.The test result shows that the frequencies corresponding to the peak accelerations of the industrial lockstitch sewing machine at different speeds are about integer multiple of the rotation frequency,and the acceleration corresponding to the rotation frequency of 1 time at the highest rotation speed is the largest.The industrial lockstitch sewing machine has natural frequency in the frequency range of 160~170 Hz and 260~270 Hz,and there are four resonance speeds,and the resonance at rotation speed of 3250 r/min is the most serious.Under the non resonance speed,the accelerations corresponding to the rotation frequency of 1 time and 2 times account for large proportion of the vibration acceleration of the whole machine,and with the acceleration of the rotation speed,the accelerations corresponding to the rotation frequency of 1 time and 2 times increase.

关 键 词：平缝机 振动 测试 

分 类 号：TS941.562.2[轻工技术与工程—服装设计与工程]