Conveyor belts. Method for the determination of the tear propagation resistance of textile conveyor belts

2018 ◽  
Keyword(s):  
Propagation Resistance ◽  
Conveyor Belts ◽  
Tear Propagation

scholarly journals Long-Exposure RGB Photography with a Fixed Stand for the Measurement of a Trajectory of a Dynamic Impact Device in Real Scale

Sensors ◽  
2021 ◽  
Vol 21 (20) ◽  
pp. 6818
Author(s):  
Ľudovít Kovanič ◽  
Ľubomír Ambriško ◽  
Daniela Marasová ◽  
Peter Blišťan ◽  
Tomáš Kasanický ◽  
...  
Keyword(s):  
Impact Resistance ◽  
Dynamic Impact ◽  
Long Duration ◽  
Conveyor Belts ◽  
Laser Distance Sensor ◽  
Novel Method ◽  
Distance Sensor ◽  
Reference Measurements ◽  
Real Scale

The present manuscript proposes a novel method for the measurement of a trajectory of a falling impact hammer in the dynamic loading of conveyor belts and the determination of their impact resistance. The proposed method has been experimentally tested and the results of the measurements are presented in this manuscript. The proposed method is based on the long-exposure photography with a long-duration opened shutter of the Nikon D5000 DSLR camera. Results of the experimental research were compared with direct reference measurements performed using the L-GAGE LT3 laser distance sensor. Differences between values, obtained by the new method and by the reference measurements were up to ±3 mm. The standard deviation identified in all the experiments was 1 mm.

Method of Flexible Fence Geometry Determination in the Context of the Small-Sized Objects Sorting Process

2018 ◽  
Author(s):  
Tomasz Piatkowski ◽  
Miroslaw Wolski
Keyword(s):  
Process Parameters ◽  
Optimal Parameters ◽  
Automatic Sorting ◽  
Conveyor Belts ◽  
Sorting Process ◽  
Three Stages ◽  
Selection For ◽  
Mass Spring ◽  
Geometrical Dimensions

The paper presents a proposal for a method for determining the geometrical dimensions of a rotary flexible fence used in the process of automatic sorting of small-sized objects transported on conveyor belts. The method consists of three stages: 1 – determination of the preferred outline and material of the fence, 2 – optimal parameters determination of the sorting process, 3 – dimensions selection for the preferred geometry of the fence with reference to the mass of scraped objects and the sorting process parameters. The stages adopted allow to select the optimal mass-spring-damper characteristics of the fences in the context of the assumed level of efficiency, reliability and minimization of the dynamic reactions of the sorting process.

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