A Simple Method for Estimating the Driving Resistance of Rubber Conveyer Belts by Using a Self-Traveling Roller

2013 ◽  
Vol 330 ◽  
pp. 274-278 ◽  
Author(s):  
Shinya Kinoshita ◽  
Kazuya Okubo ◽  
Toru Fujii
Keyword(s):  
Normal Force ◽  
Resistance Force ◽  
Conveyer Belt ◽  
Belt Conveyer ◽  
Simple Method ◽  
Driving Speed ◽  
Present Technique ◽  
Conveyor Belts ◽  
Conveyer System ◽  
Rubber Belt

The purpose of this study is to provide a simple method for estimating the driving resistance of rubber conveyer belts. The driving resistance of a rubber belt running on the carrier roller was estimated by a resistance force acting on a roller moving on the rubber conveyer belt while the belt was fixed on an aluminum channel. Four types of conveyor belts were tested to confirm the present technique is useful for grading rubber conveyer belts from a viewpoint of energy dissipation on the carrier rollers of the conveyer system. The effects of normal force acting on the roller and driving speed of the roller on the resistance force were investigated. Four belts were fabricated with different rubber types of rubber, respectively. It was confirmed from the experiments that the estimated resistance force varied with respect to the rubber characteristics, which was consistent to the experience from the existing belt conveyer systems for energy consumption. The resistance force of the carrier roller increases with an increase of roller speed. It also decreases when a lower damping rubber is used while the belt rigidity does not affect the resistance force when low resistance rubber is used. The proposed method is applicable to estimate the total energy loss of rubber conveyer belts on the carrier rollers.

scholarly journals EXPERIMENTAL STUDY AND ANALYSIS OF FLAT BELT CONVEYER SYSTEM WITH DIFFERENT WEIGHT CONDITION

2021 ◽  
Vol 8 (12) ◽  
pp. 328-332
Author(s):  
Vishnu Dutta Tiwari ◽  
Gouraw Beohar
Keyword(s):  
Experimental Study ◽  
Conveyor Belt ◽  
The Other ◽  
Belt Conveyer ◽  
Uneven Bottom ◽  
Weight Condition ◽  
Conveyor Belts ◽  
Conveyer System ◽  
Drive Pulley ◽  
Belt System

A conveyor belt system essentially consists of an endless belt of elastic material connected between two flat pulleys and driven by the rotation of one of the pulleys by a direct current motor. Usually, the material is fed to the belt near the other end of the pulley. The moving belt that carries the material to the drive pulley tends to sag between the two end pulleys due to its own weight. Rubber conveyor belts are commonly used to transport items with uneven bottom surfaces, small items that fall between rolls, or product bags that sag between rolls.

scholarly journals Faulty Lock Detection and Separation System

2019 ◽  
pp. 39-44
Author(s):  
Mishra Nikhilkumar N ◽  
Madale Kabirdas N ◽  
Khairnar Pratik S ◽  
Sangale Prasad M ◽  
Ostwal Rishabh S
Keyword(s):  
Separation Mechanism ◽  
Conveyer Belt ◽  
Separation System ◽  
Locking Mechanism ◽  
Good Reputation ◽  
Product Manufacturing ◽  
Rubber Belt ◽  
Is Design ◽  
Belt System ◽  
Detection And Separation

All product manufacturing units need to have a faulty product detection and separation system in order to maintain product quality and maintain a good reputation. So here we demonstrate such a system using a mini conveyer belt system. We propose to design and fabricate a faulty product detection and separation mechanism. Each product is different and thus has different mechanisms to detect faulty products. Here we detect fault in lock based on its size and operations. We use a sensor to detect each lock size and operations as products move over a conveyer belt. The conveyer is design so that it can hold the lock so that it does not fall or leave the conveyer belt. A defected product with size lower than minimum limit will be automatically detected as it moves on a conveyer belt and separated by a conveyer arm. If the product passes the size test the next sensor perform it task to operate the lock so that it can open the locking mechanism and check if it opens or not. If the product passes the test it is send for packaging and if not the product is separated and sent to production line for correct the fault. Here we use rollers and rubber belt to develop a mini conveyer belt mechanism. This mechanism is operated by a motor. This system uses servo motor arm to separate the faulty product.

scholarly journals EXPERIMENTAL STUDY AND PERFORMANCE OF FLAT BELT CONVEYER SYSTEM WITH DIFFERENT SPEED

2018 ◽  
Vol 6 (12) ◽  
pp. 147-150
Author(s):  
Aiman Beg ◽  
Narendra Jaiswal
Keyword(s):  
Experimental Study ◽  
Industrial Application ◽  
Material Handling ◽  
Handling Time ◽  
Belt Conveyer ◽  
Conveyer System ◽  
And Performance ◽  
Proper Performance

we are studying about the flat belt conveyer system with different speed, in this way we are many component used for proper performance. The flat belt conveyer system is most important device for reduce the material handling time which is very necessary in industrial application, for this purpose we are construct the highly efficiently flat belt conveyer system using of different distance between two axis of shafts.

Combined Steam-Ultrasound Treatment of 2 Seconds Achieves Significant High Aerobic Count and Enterobacteriaceae Reduction on Naturally Contaminated Food Boxes, Crates, Conveyor Belts, and Meat Knives

2015 ◽  
Vol 78 (2) ◽  
pp. 430-435 ◽  
Author(s):  
HANIEH S. MUSAVIAN ◽  
TARIQ M. BUTT ◽  
ANNETTE BALTZER LARSEN ◽  
NIELS KREBS
Keyword(s):  
Detection Limit ◽  
Ultrasound Treatment ◽  
Fast Process ◽  
Short Treatment ◽  
Food Contact Surfaces ◽  
Different Types ◽  
Contaminated Food ◽  
Conveyor Belts ◽  
Rubber Belt ◽  
Food Residues

Food contact surfaces require rigorous sanitation procedures for decontamination, although these methods very often fail to efficiently clean and disinfect surfaces that are visibly contaminated with food residues and possible biofilms. In this study, the results of a short treatment (1 to 2 s) of combined steam (95°C) and ultrasound (SonoSteam) of industrial fish and meat transportation boxes and live-chicken transportation crates naturally contaminated with food and fecal residues were investigated. Aerobic counts of 5.0 to 6.0 log CFU/24 cm2 and an Enterobacteriaceae spp. level of 2.0 CFU/24 cm2 were found on the surfaces prior to the treatment. After 1 s of treatment, the aerobic counts were significantly (P < 0.0001) reduced, and within 2 s, reductions below the detection limit (<10 CFU) were reached. Enterobacteriaceae spp. were reduced to a level below the detection limit with only 1 s of treatment. Two seconds of steam-ultrasound treatment was also applied on two different types of plastic modular conveyor belts with hinge pins and one type of flat flexible rubber belt, all visibly contaminated with food residues. The aerobic counts of 3.0 to 5.0 CFU/50 cm2 were significantly (P < 0.05) reduced, while Enterobacteriaceae spp. were reduced to a level below the detection limit. Industrial meat knives were contaminated with aerobic counts of 6.0 log CFU/5 cm2 on the handle and 5.2 log CFU/14 cm2 on the steel. The level of Enterobacteriaceae spp. contamination was approximately 2.5 log CFU on the handle and steel. Two seconds of steam-ultrasound treatment reduced the aerobic counts and Enterobacteriaceae spp. to levels below the detection limit on both handle and steel. This study shows that the steam-ultrasound treatment may be an effective replacement for disinfection processes and that it can be used for continuous disinfection at fast process lines. However, the treatment may not be able to replace efficient cleaning processes used to remove high loads of debris.

Rolling Contact Between Rigid Cylinder and Semi-Infinite Elastic Body With Sliding and Adhesion

2007 ◽  
Vol 129 (3) ◽  
pp. 481-494 ◽  
Author(s):  
S. Hao ◽  
L. M. Keer
Keyword(s):  
Friction Coefficient ◽  
Normal Force ◽  
Analytic Solutions ◽  
Rolling Contact ◽  
Resistance Force ◽  
Surface Adhesion ◽  
Friction Resistance ◽  
Rigid Cylinder ◽  
Steady State Rolling ◽  
Adhesion Friction

Based on a hybrid superposition of an indentation contact and a rolling contact an analytical procedure is developed to evaluate the effects of surface adhesion during steady-state rolling contact, whereby two analytic solutions have been obtained. The first solution is a Hertz-type rolling contact between a rigid cylinder and a plane strain semi-infinite elastic substrate with finite adhesion, which is a JKR-type rolling contact but without singular adhesive traction at the edges of the contact zone. The second solution is of a rolling contact with JKR singular adhesive traction. The theoretical solution indicates that, when surface adhesion exists, the friction resistance can be significant provided the external normal force is small. In addition to the conventional friction coefficient, the ratio between friction resistance force and normal force, this paper suggests an “adhesion friction coefficient” which is defined as the ratio between friction resistance force and the sum of the normal force and a function of maximum adhesive traction per unit area, elastic constant of the substrate, and contact area that is characterized by the curvature of the roller surface.

CORRELATED STUDIES ON PLASMA FREE CORTICOSTERONE AND ON ADRENAL STEROID FORMATION RATE IN VITRO

1960 ◽  
Vol XXXIV (IV) ◽  
pp. 513-523 ◽  
Author(s):  
]. van der Vies ◽  
R. F. M. Bakker ◽  
D. de Wied
Keyword(s):  
Sulfuric Acid ◽  
Environmental Change ◽  
Formation Rate ◽  
Rat Plasma ◽  
Rapid Decline ◽  
Simple Method ◽  
Adrenal Steroid ◽  
Present Technique

ABSTRACT The effects of various stimuli on the rate of formation of adrenal cortical hormones in vitro and on the plasma free corticosterone were studied in rats. First, a simple method for the determination of corticosterone in rat plasma is described which is based on the fluorescence of this steroid in sulfuric acid. In contrast to procedures described by other workers the present technique does not require expensive spectro-fluorometers, but can be performed using a simple fluorometric unit consisting of components which are generally available. The results obtained with the two methods have shown that the steroid formation rate in vitro and the plasma free corticosterone increases after formalin stress, environmental change and injection of corticotrophin. Hypophysectomy leads to a marked and rapid decline of adrenal activity in vitro and of the plasma free corticosterone.

scholarly journals EXPERIMENTAL STUDY AND DESIGN OF FLAT BELT CONVEYER SYSTEM WITH DIFFERENT R.P.M.

2021 ◽  
Vol 7 (12) ◽  
pp. 67-73
Author(s):  
Vishnu Dutta Tiwari ◽  
Gouraw Beohar
Keyword(s):  
Material Handling ◽  
Effective Length ◽  
Material Handling System ◽  
Belt Conveyor ◽  
Belt Conveyer ◽  
Conveyor System ◽  
Handling System ◽  
Speed Range ◽  
Conveyer System ◽  
Specific Speed

In this work, we are studying during experiments with a flat belt conveyor system with different speeds such as 30, 60, 90, 120 and 150 R.P.M. In this study, it is also included that the observations of the different load capacities (Grams) at different outlet times (Hours). The design of the flat belt conveyor system is very important for the specific speed range of the material handling system from place to place, which depends on the effective length of the belt.

scholarly journals EXPERIMENTAL STUDY OF FLAT BELT CONVEYER SYSTEM IN BOTH DIRECTIONS WITH DIFFERENT LOAD CONDITION

2020 ◽  
Vol 8 (9) ◽  
pp. 141-146
Author(s):  
Priyanka Sharma
Keyword(s):  
Material Handling ◽  
Applied Load ◽  
Load Condition ◽  
Motor Drive ◽  
Material Handling System ◽  
Belt Conveyer ◽  
Forward Motion ◽  
Handling System ◽  
Conveyer System ◽  
Motor Drive System

The flat belt conveyer system is a based-on belt drive mechanism which is used for material handling system and also useful in other application. In this paper, we study about the material handling in both direction such as forward motion and reverse motion using of D.C. motor drive system with different applied load condition. The several reading has taken during running condition of system.

Structural, Electrical, and Resistance Force Characteristics of Ga-In-Sn Eutectic Alloys

2015 ◽  
Vol 642 ◽  
pp. 162-167
Author(s):  
Y.F. Shen ◽  
Jeng Haur Horng ◽  
C.C. Wen ◽  
Jau Shiung Fang
Keyword(s):  
Atomic Force Microscopy ◽  
Electrical Resistivity ◽  
Electrical Property ◽  
Friction Coefficient ◽  
Normal Force ◽  
Resistance Force ◽  
Eutectic Alloys ◽  
Force Microscopy ◽  
Atomic Force ◽  
Force Characteristics

This work aims at investigating the electrical property and the friction force of Ga-In-Sn eutectic alloys. The performance of the alloys is increasingly needed on conducting lubricant. Resistance force dependence of normal force was examined by atomic force microscopy, and the results showed that Ga65In21Sn14had the highest friction coefficient of 3.07 and Ga80In13Sn7had a lowest friction coefficient of 1.46. Electrical resistivity of the studied eutectic alloy was from 25.9 to 27.7 μΩcm at 25°C. Accordingly, the electrical resistivity as a function of temperature revealed a temperature coefficient of ranging from 12.67 ✕10-3°C-1to 4.94 ✕10-3°C-1. High thermally stable and wetting capability make the studied Ga-In-Sn alloys can potentially be used as a conducting lubricant.

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