Firstly,after the load and power transmission force of the gear,there will be bending elastic deformation during meshing,and the load will deform more than the no-load deformation.Moreover,the meshing impact force is also large,and the node pulse impact is not small,which will cause a lot of noise.Secondly,the accuracy and stiffness of gear machining can also cause equipment noise.For example,if the gear machining accuracy is too low and the error is relatively large,the meshing impact will be large,and the stiffness of the gear will decrease.After being subjected to force,there will be a lot of elasticity,resulting in a lot of noise.
Noise reduction measures for electric hoists:When selecting equipment,try to choose motors with more stages.This not only reduces gear noise but also motor noise,which is helpful for the equipment.At the same time,the requirements for the precision of advanced gear processing must not be ignored,as this can ensure that the noise of the equipment can meet the standard.
Improving the gear stiffness of high-speed machine gears can reduce its elastic deformation and reduce the impact force of gear meshing.This is an effective way to reduce equipment noise,and increasing the modulus of gears can significantly enhance the gear stiffness.This method is also very convenient to implement.
Of course,the requirements for motors cannot be ignored.Although they are not the main noise source of equipment,they do produce noise.When choosing a motor,its noise should be at least five decibels lower than the total noise of the equipment.This is a basic requirement,and the problem of noise involves many factors,which is also quite complex to solve.Therefore,everyone wants to solve the problem of noise,What needs to be done is to first check whether the equipment is malfunctioning or the main cause of noise,in order to effectively solve it.
When the electric hoist is well lubricated,the noise is low.Regular lubrication and maintenance should be carried out to replenish lubricating oil or grease.All rotating parts need to be lubricated.Noise is caused by vibration,and lubrication can reduce vibration.
The commonly used types of steel wire ropes for electric hoists include phosphating coated steel wire ropes,galvanized steel wire ropes,stainless steel wire ropes,or plastic coated steel wire ropes.They are used in atmospheric environments,and manganese series phosphating coated steel wire ropes produced with patented technology have the longest service life.Hot dip galvanizing phosphating double coating steel wire ropes are preferred for heavily corrosive environments