| We need to know about the knowledge of the drum | |||
| Author:admin Source:Original Updated:2013-11-1 | |||
Belt conveyor rollers in various forms , according to the function of the main drive pulley and bend pulley two kinds . In accordance with the drive to points, the drive roller is divided into outer and inner drive type drive type . External -drive is the drive roller drive device placed outside the gearbox input shaft directly with the associated drive roller . Inner -drive is to drive all on the drive inside the drum , which is commonly referred to as electric drum, generally suitable for short distances and low power stand-alone drive places.
Since then captured the belt conveyor structure easily damaged, so generally adopted a blessing heavy plate cast integrally with the hub structure , while the drum shell and jurisdiction between the plates is used to connect the dry pick . Roller bearings are usually used is self-aligning roller bearings, in order to have better fatigue resistance . The expansion sets generally more frequent use of the ring expansion sets . Mainly on the belt drive roller conveyor belt traction is applied , usually a plastic surface roller , the surface covered with rubber or the like , so that the drive roller is conducive to increasing the coefficient of friction between the belt and improve the driving force of the drum periphery , work to prevent belt slippage between the roller shaft and the hub ring expansion sets commonly used coupling structure . Idler pulleys are generally used to change the direction of belt conveyor belt conveyor , belt misalignment driving force is applied . Usually a smooth cylinder , to facilitate rotation of the friction reducing , reducing unnecessary friction loss , the roller shaft and the hub structure generally preclude the use of keyed . Idler pulleys are also various types , including the end of the conveyor idler pulley , the guide rollers and the tensioning device to increase the driving drum wrap angle of the guide rollers, etc. . Magnetic belt conveyor roller conveyor with the general structure of the drum structure is similar , so the drive roller and the selection of bend pulley belt conveyor can refer to the selection of ordinary way . Magnetic belt conveyor is a flexible multi-body systems , the need to establish the appropriate flexible multi -body system dynamics model of its analysis, modeling and analysis is needed before making first look at the flexible multi-body system dynamics theory of knowledge points . Belt conveyor of this complex flexible multibody systems, conveyor itself due to its flexible characteristics result in too many uncertainties in the model , but in its modeling process, all the components are based on physical modeling rigid structure modeling , so you need to belt geometry is discretized into many small flexible tape block unit with block and the belt by applying appropriate constraints between blocks , and then the block unit consisting of a flexible conveyor belt dynamic analysis . Belt conveyor belt for the purpose , which itself is a flexible body which is not part of the material on the bearing structure of its own part of the quality , so that gravity will cause belt and its movement due to the material produced under the action of inertial load corresponding vibration in the analysis must be based on the dynamic load characteristic to select the appropriate mode to analyze the deformation of the belt . | |||
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