Pipe Belt Conveyor Lifting Mechanism for Online Idler Replacement
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Solution Overview
Problem
Current idler maintenance in pipe belt conveyors requires shutdown for manual replacement, is inefficient, and existing devices are not suitable for hexagonal idler structures, leading to high costs and downtime.
Innovation Solution
A conveyor belt lifting mechanism and online operation and maintenance robot that integrates state detection, maintenance, and replacement, using a L-shaped arm, telescopic arm, and supporting shafts to lift and replace idlers without shutdown, combined with a seven-degree-of-freedom manipulator and detection mechanisms for real-time monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If manual idler replacement is performed during conveyor operation, then conveyor downtime is reduced, but maintenance safety and operational complexity increase
Solution Approach 1:
The system enables self-service maintenance by allowing the conveyor belt to support its own weight during idler replacement through the lifting mechanism, eliminating the need for external support structures or complete system shutdown. The belt itself becomes the support structure during maintenance operations.
Solution Approach 2:
The lifting mechanism acts as an intermediary device between the conveyor belt and the idler replacement process. It provides temporary support and controlled lifting capability, mediating the complex interaction between belt weight, idler removal, and conveyor continuity.
2Productivity
If a lifting mechanism is introduced for online maintenance, then maintenance efficiency is improved, but device complexity increases
Solution Approach 1:
The lifting mechanism is designed with multi-functionality to justify its complexity. It can lift the conveyor belt, support the belt weight, position idlers for replacement, and integrate with the existing conveyor structure. This universal capability allows a single device to perform multiple maintenance functions.
Solution Approach 2:
The lifting mechanism is merged with the existing conveyor structure, particularly integrating with the idler support framework. This combination reduces the need for separate independent systems and leverages existing structural elements to support the new lifting functionality.
3Productivity
If the conveyor belt is lifted during idler replacement, then online maintenance is enabled, but risk of belt damage increases
Solution Approach 1:
The lifting mechanism incorporates cushioning elements and controlled lifting speed regulation to prevent sudden movements or excessive forces on the conveyor belt. Energy absorption features are built in to protect the belt from damage during the lifting and positioning process.
Solution Approach 2:
The lifting mechanism uses dynamic control to adjust lifting speed and force according to the actual state of the conveyor belt and idler being replaced. The system can pause, slow down, or adjust lifting parameters in real-time to maintain belt integrity while enabling online maintenance.
Data Source
AI summary
A conveyor belt lifting mechanism which includes an L-shaped arm, a telescopic arm, and a supporting shaft and an online operation and maintenance robot for a pipe belt conveyor are provided. One end of the L-shaped arm is rotatable, an axial direction of a rotating shaft is parallel to a conveying direction of a conveyor belt, the telescopic arm is slidably connected to the other end of the L-shaped arm, and the telescopic arm extends and retracts in an extension direction of the L-shaped arm. A universal rotary driving portion is connected to an end of the telescopic arm, the supporting shaft is fixed to an output end of the universal rotary driving portion, and two supporting rollers are arranged on the supporting shaft. An included angle between rotating shafts of the two supporting rollers is the same as that between two adjacent idlers in the pipe belt conveyor.