Research in placement of measuring sensors on hexagonal idler housing with regard to requirements of pipe conveyor failure analysis

Molnár, Viktor; Fedorko, Gabriel; Honus, Stanislav; Andrejiová, Miriam; Grinčová, Anna; Michalík, Peter; Palenčár, Jakub

doi:10.1016/j.engfailanal.2020.104703

Cited by 8 publications

(6 citation statements)

References 21 publications

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“…In the technical world, these rope force equalizers are known under the name of "elevator rope sensors". A rope sensor [11,13,36] is essentially a girder made of steel or casted from an aluminum alloy. Two pulleys [14] with a predefined span are installed on the pegs against the sensor in a revolving way.…”

Section: Literature Reviewmentioning

confidence: 99%

Laboratory Device for Checking the Functionality of the Elevator Rope Sensors

Hrabovský

Borovsky²

2020

Management Systems in Production Engineering

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The paper describes the structural design of a laboratory device that allows for presenting operation, simulating work procedures and checking functionality of the elevator “rope sensors” when equalizing different tensile forces in partial ropes of a rope system of traction elevators. The laboratory device is modified for checking operations of commonly used rope sensors. In an overwhelming number of cases, elevator technicians use them for setting up the unequally distributed tensile forces in elevator ropes. The device is equipped with three, mutually attached pulleys, over which the rope is installed. The unknown tensile force in the rope is determined by an “indirect method”, i.e. from the resultant of the forces of the rope bent over the pulleys, which have an effect on the force sensor. The tensile force along the rope axis can be determined numerically, but also experimentally, from the inclination angle of the rope installed on the pulleys, diameter of the pulleys, diameter of the rope and the force detected by the force sensor of the stretched rope. The paper presents experimentally obtained tensile force values at the rope sensor, deduced from stretching the rope. The paper also describes the procedure for determining the measured load in the rope by rope sensors of the SWR, SWK and RMT-1 types based on the variable axial force in the rope.

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Section: Literature Reviewmentioning

confidence: 99%

Laboratory Device for Checking the Functionality of the Elevator Rope Sensors

Hrabovský

Borovsky²

2020

Management Systems in Production Engineering

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“…The conventional method typically involves manual inspection or the utilization of mechanical integrated protection systems, and the non-contact approach is employed for monitoring the position of the lap point situated at the uppermost section of the conveyor belt. While continuous real-time monitoring offers certain benefits, it presents challenges in effectively monitoring torsion angles and expanding the spatial arrangement of the body, hence leading to increased costs associated with operation and maintenance [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A Machine Vision-Based Edge Detection Method for Belt Lap of Pipe Belt Conveyor

Hao,

Wang,

Zhang

et al. 2024

Advances in Transdisciplinary Engineering

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The extraction of positional features from the longitudinal lap edge straight line of the conveyor belt in a pipe belt conveyor holds significant importance in the detection of conveyor belt torsion faults. This study presents a proposed algorithm for detecting the longitudinal lap edge on a conveyor belt using machine vision. The algorithm involves several steps, including extracting regions of interest (ROI) from conveyor belt images and converting them to grayscale. Local enhancement is achieved through image stretching, and edge features are extracted using the Prewitt operator. Morphological methods are then applied to address impurities, and the lap edge is detected through straight line detection using the Hough transform. The conducted experiments involving the utilization of OpenCV on authentic images of a cylindrical pipe belt conveyor within an industrial setting demonstrate the algorithm’s proficient ability to accurately recognize the longitudinal lap edges of conveyor belts.

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“…One of the numerous possible ways [13,14] to achieve efficient transport of grains of a conveyed mass transported at an angle of inclination of the conveyor which exceeds the limiting angle of inclination of a smooth conveyor belt δm (deg) of a belt conveyor of conventional construction, is to use a conveyor belt with belt cleats [15,16], Figure 1. In order to ensure ecological transport without failure requirements for the transport of bulk materials by continuous conveyor systems [17], careful attention should be given to the proper shape of the conveyor belt [18].…”

Section: Introductionmentioning

confidence: 99%

“…Asymmetrical tensioning of the conveyor belt is the serious negative and undesirable operational situations [25]. In order to ensure ecological transport without failure requirements for the transport of bulk materials by continuous conveyor systems [17], careful attention should be given to the proper shape of the conveyor belt [18].…”

Section: Introductionmentioning

confidence: 99%

Transport Performance of a Steeply Situated Belt Conveyor

Hrabovský

Fries

2021

Energies

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The paper presents a methodology for determining the volume of a batch of conveyed material located before a transverse partition of a certain height and the distance over which the batch of material extends on the working surface of the conveyor belt along its longitudinal axis. Knowing the geometric dimensions of the transported batch of material makes it possible to appropriately set the spacing of the belt cleats and thereby to optimally determine the conveying performance of the inclined belt conveyor. When the angle of inclination of a conveyor with a straight idler frame is equal to the angle of surcharge of the conveyed material, then no layer of material is carried on the surface of the belt. If the conveyor belt is guided along a trough idler frame, only the lower cross-section of the filling of material is used. An increase in the cross-section of the belt load of a conveyor inclined at an angle, which exceeds the angle of repose of the conveyed material, can be achieved by installing regularly spaced belt cleats around the circumference of the working surface of the endless loop of the conveyor belt. The volume of the batch of material retained by the belt cleat depends on the height and width of the cleat and whether or not the conveyor belt is provided with corrugated side edges. The paper presents theoretically determined relationships that can be used to determine the size of the transverse and longitudinal area and the volume of the batch of material spread on the surface of the conveyor belt in front of the cleat. The experiments performed provide the distances of the material distribution on the surface of the conveyor belt depending on the height of the cleat and the angle of inclination of the conveyor belt.

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Research in placement of measuring sensors on hexagonal idler housing with regard to requirements of pipe conveyor failure analysis

Cited by 8 publications

References 21 publications

Laboratory Device for Checking the Functionality of the Elevator Rope Sensors

Laboratory Device for Checking the Functionality of the Elevator Rope Sensors

A Machine Vision-Based Edge Detection Method for Belt Lap of Pipe Belt Conveyor

Transport Performance of a Steeply Situated Belt Conveyor

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