Simulation Analysis Of Synchronous Belt On Vibration And Noise Of Intelligent Terminal Elevator

Intelligent terminal elevator is an important equipment to achieve paperless conference,the working environment is relatively quiet,intelligent terminal elevator needs to develop to low vibration and low noise,the stability of its transmission system and noise problems in the transmission process need to be further controlled.At present,the research of intelligent terminal elevator integrated machine transmission system is almost research gap,lifting transmission system is the core component of the product,but also the main reason of vibration and noise,this paper for the intelligent terminal elevator integrated machine product demand,the selection of synchronous belt as a lifting mechanism,through theoretical analysis,combined with experiments and simulation,the synchronous belt intelligent terminal elevator transmission system transmission performance carried out related research,the main research work content is as follows:Firstly,the transmission system design of synchronous belt the intelligent terminal lifting machine was completed.Based on the research status of synchronous belt transmission stress,the formulas of tooth surface contact stress and root bending stress in the transmission process of the belt teeth were derived,and the influence of speed and tension force on the stress were obtained.By analyzing the transverse vibration of the synchronous belt transmission process,the transverse vibration displacement equation of the synchronous belt was established.It is found that the transverse vibration amplitude is related to the speed and the tension force.Secondly,for the service life and operating stability of intelligent terminal elevator,the multi-body dynamic software RECURDYN is used to establish a synchronous transmission rigid and soft-coupled simulation model.In the law of influence,it is found that during the lifting process,while adjusting the same tightness,as speed accelerates,the maximum stress of the teeth and the root of the teeth will be reduced;With the increase of tension,the maximum stress of the tooth surface and the root of the teeth will also be reduced.At the same time,the system has studied the influence of different tensioner layout positions,different operating speeds and tensioning force on horizontal vibration amplitude,fluctuating from the speed of the moving wheel angle,and the fluctuation of tension.Controlling the vibration within 0.3mm,get a relatively stable operating state.It is found that the operating speed is accelerated,the marginal vibration amplitude is reduced,the synchronous tension fluctuates increase,and the speed of the moving wheel corner fluctuates increases;as the synchronous belt tension is Increased,the horizontal vibration amplitude of the synchronous band decreases,the tension fluctuates increases,and the speed of the moving wheel angle increases;it is considered to find that the speed is 200r/min,the tension force is300 N,and the tight wheel is arranged in between the center of the synchronization belt and the driven wheel,the distribution of the band segments of the synchronous zone is the most reasonable,the transmission is more stable,the band in intelligent terminal elevator is smoother in the vertical transmission process,the fluctuations of the dynamic rotation are more stable,the comprehensive transmission comprehensive performance is better It provides a reference for better setting the parameters of the intelligent terminal elevator.Next,in order to avoid the occurrence of resonance phenomenon with horizontal vibration synchronous vibration,based on the dynamic equation of horizontal vibration,analyze the factors of the inherent frequency of the synchronous band of the horizontal vibration,and use the modal analysis of ANSYS software.The transmission simulation models solve each order vibration type and solidar frequency of horizontal vibration,and studies the effects of tight wheels on the synchronous band of the solidcorm frequency.It is found that the tight wheel can change the solid ease frequency of the synchronous transmission system to avoid resonance to avoid resonance.occur.On the basis of modal analysis,the horizontal vibration simulation results in the simulation are further completed as an external incentive analysis of the transmission system,providing the sound field boundary conditions for further noise prediction analysis.Finally,by analyzing the transmission noise mechanism of elevator synchronous,the RECURDYN-ANSYS-LMS software is used to combine the synchronous noise to predict and study the synchronous noise.The sound pressure curve analyzes the main sources and types of noise.It is found that when the operation speed is accelerated and the incentive frequency is increased,the noise gradually increases.When the frequency and horizontal vibration are coupled inherently,the horizontal vibration of the synchronous band is intensified,which will not only increase the horizontal vibration of the synchronous band The prediction and analysis of noise is instructed to reduce the lifting noise of the smart terminal.Used a variety of analytical methods,the transmission stability and noise of synchronous belt intelligent terminal elevator are studied and analyzed in this study,which provides ideas and methods for vibration and noise research of synchronous belt equipment,and has research significance and practical value.