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Diagnosing and Correcting Conveyor Belt Deflection: Finding the Root Cause

Technical analysis: Troubleshooting belt conveyor mistracking: root cause analysis from loading, splicing, pulley alignm

Діагностика та виправлення відхилення ленти конвеєра: пошук кореневої причини - UNITEC-D Industrial MRO
Цей підручник допоможе технікам виявити та виправити відхилення ленти конвеєра, використовуючи систематичну діагностику. Він включає конкретні діагностичні методи, спільні причини та рекомендації для

1. Problem description and scope

This tutorial is devoted to the diagnosis of conveyor belt deviation that can occur during operation in industrial installations. Deviation of the tape can lead to wear of the hinges, disruption of the production process and dangerous situations. The problem is considered critical because it can cause loss of productivity and endanger personnel.

2. Safety precautions

Use of personal protective equipment: Gloves, glasses, mask and special clothing are required during diagnosis.
Energy capture: Before starting work, perform a lockout and tagout procedure on all devices to avoid unforeseen incidents.
Energy conservation: If there is no energy in the system, check for residual energy before starting.

3. Necessary diagnostic tools

Name of the tool Model/Spec Measuring range The goal
Multimeter Fluke 289 0–600 V, 0–200 Ω, 0–20 A Checking electrical connections and voltage
Vibration analyzer Keysight 35670A 0–10,000 Hz Detection of vibrational deviations
Thermal cameras FLIR T1030sc -20°C to 1200°C Diagnostics of overheated components
Level meter Testo 510 0–10 m Tape level check

4. Preliminary examination and verification

Point Description
1 Check the condition of the tape and hinges
2 Record the operating conditions (temperature, humidity, load)
3 Check the history of alarms and deviations
4 Ask staff about changes in recent months

5. Systematic flow of diagnostics

  1. Symptom: The tape deviates to the right.
    1. Diagnosis: Check the tape level.
      1. Result: If the level is higher than the permissible level (5 mm), adjust.
  2. Symptom: The tape deviates to the left.
    1. Diagnosis: Check the condition of the hinges.
      1. Result: If the hinges are worn, replace them.
  3. Symptom: Tape deflects in both directions.
    1. Diagnosis: Check the centering of the rollers.
      1. Result: If the rollers are not centered, adjust.

6. Matrix of causes of deviations

Symptom Probable causes (in descending order of probability) Diagnostic test Expected result
The tape is deflected to the right Incorrect tape level, worn hinges, uneven rollers Checking the level of the tape, the condition of the hinges, the eccentricity of the rollers Incorrect level, worn hinges, uneven rollers
The tape is deflected to the left Incorrect tape level, worn hinges, uneven rollers Checking the level of the tape, the condition of the hinges, the eccentricity of the rollers Incorrect level, worn hinges, uneven rollers
The tape deflects in both directions Uneven rollers, incorrect tension, worn hinges Checking the level of the tape, the condition of the hinges, the eccentricity of the rollers Uneven rollers, incorrect tension, worn hinges

7. Analysis of the root causes of each deviation

7.1 Incorrect tape level

Incorrect tape level can occur due to incorrect adjustment or wear of the rollers. If the level of the tape is higher than 5 mm, it may cause a deviation. You can confirm with a level meter.

7.2 Worn hinges

Worn hinges cause deflection of the tape due to insufficient fixation. It can be confirmed by visual inspection or wear measurement.

7.3 Uneven rollers

Uneven rollers cause deviation due to uneven support of the tape. It can be confirmed using a vibration analyzer.

8. Step by step repair procedure

8.1 Correction of incorrect tape level

  1. Measure the tape level using a level meter.
  2. If the level exceeds 5 mm, adjust the level to the acceptable value.
  3. Check the level after adjustment.

8.2 Repair of worn hinges

  1. Perform a visual inspection of the hinges.
  2. If the hinges are worn, replace them with new ones.
  3. Check the condition of the hinges after replacement.

8.3 Fixing uneven rollers

  1. Measure the eccentricity of the rollers.
  2. If the rollers are not centered, adjust.
  3. Check the centering of the rollers after adjustment.

9. Preventive measures

The root cause Prevention strategy Control method Recommended interval
Incorrect tape level Tape level adjustment Level measurement monthly
Worn hinges Regular replacement of hinges Visual inspection Quarterly
Uneven rollers Adjustment of rollers Measurement of eccentricity monthly

10. Spare parts and components

Description of the component Specification When to replace UNITEC-D category
Tape hinge Material: high-quality steel, weight: 500 g After wear and tear Mechanical details
Rollers Material: high-quality steel, weight: 200 g After wear and tear Mechanical details
Level meter Model: Testo 510 After wear and tear Diagnostic tools

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11. Links

  • DSTU 1855.1-96: Technical conditions for conveyor belts
  • ISO 50001: Energy efficiency management systems
  • EN 13155: Conveyor systems — technical conditions
  • UNITEC-D technical repair instructions

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