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Vibration Analysis and Dynamic Balance for the Headstoct System of CM500 Cotton Comber

Author: MaQingHong
Tutor: XuBoJun
School: Jiangnan University
Course: Textile Engineering
Keywords: Comber ADAMS Dynamic Analysis Institutions optimize
CLC: TS103.225
Type: Master's thesis
Year: 2010
Downloads: 28
Quote: 0
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Abstract


Combed cotton spinning project is to improve the quality of yarn key processes , with the continuous improvement of yarn quality requirements of the domestic and foreign markets , the status of the combing process is even more important than in the past . Study efficient Comber become an important issue of cotton textile machinery . With the the comber speed improve its vibration is more pronounced , the vibration problem has been plagued Comber speed increase bottlenecks , thus combing machine headstock vibration in-depth study , the higher the value of academic research and production practice of guiding significance . The subject to use to test the basic theory , vibration testing and analysis of dynamic testing method 350,400,450,500 rpm speed CM500 Comber nine points , found that the the combing machine 's vibration is mainly concentrated in the front of the box the intermediate shaft systems and institutions of law nipper . Use the the ADAMS software 's basic theory , the mechanical model of the comber nipper mechanism , the pendulum shaft motion of the nipper characteristics analysis determined the nipper pendulum shaft 77.5mm, speed 350 rpm / min , the angular displacement of the clamp plate , the angular velocity and angular acceleration, and using ADAMS software the parameterized analysis module nipper mechanism drive optimization analysis, to obtain the length of the the preferred crank radius of the movement of the nipper when the impact force is significantly reduced . In order to create parts with complex features , the use of three-dimensional software Solidworks intermediate shaft system model , found that the intermediate shaft system there is a certain amount of eccentricity, the centrifugal force generated when the work is one of the major problems caused by the vibration . Mechanical principle of dynamic balance theory to find the flange , timing adjustment plate 138 teeth round three centroid position relationship . Found flange the timing adjustment plate 138 teeth wheel , flange without eccentric structure adjusted to the three axis reaction forces affect timing adjustment dial on the machine's vibration impact Finally add weight method , adjust the location of the centroid of the flange becomes no eccentric structure . The emphasis on quality of m = 0.014kg, according to F = m * r must have principles, according to the actual situation in the fixed-size case m and F r can be a reasonable choice . Provides a method and basis for the the Comber further damping speed .

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CLC: > Industrial Technology > Light industry,handicrafts > Textile industry,dyeing and finishing industry > General issues > Textile industry machinery and equipment > Spinning equipment ( textile machinery ) > Former textile engineering equipment > Comber , gill
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