Elevator mechanical system failure and the formation of the basic reasons - Database & Sql Blog Articles

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1. Faults Caused by Loose Connectors During prolonged and continuous operation of elevators, fasteners may become loose due to vibration or other factors. This can lead to misalignment, detachment, or loss of precision in the machine, resulting in wear and potential damage to elevator components. Regular inspections and tightening of these connections are essential to prevent such issues. 2. Faults Caused by Natural Wear and Tear Mechanical parts naturally experience wear during operation. When the level of wear becomes significant, replacement is necessary. Elevators must undergo regular maintenance to replace worn-out components before they fail, as waiting for a breakdown could result in accidents or financial losses. Proper daily maintenance, including timely adjustments and inspections, ensures smooth operation. If wear on sliding or rolling parts is not detected and addressed promptly, it can accelerate mechanical degradation, leading to malfunctions or even serious incidents. For example, if the wire rope shows excessive wear, it should be replaced immediately to avoid catastrophic failure. Bearings and other moving parts also require scheduled replacement to maintain safety and efficiency. 3. Faults Caused by the Lubrication System Lubrication plays a critical role in reducing friction, minimizing wear, and extending the life of machinery. It also helps with cooling, rust prevention, shock absorption, and cushioning. Poor-quality lubricants, incorrect types, or improper application can cause overheating, burning, shaft seizing, or damage to mechanical components. Ensuring proper lubrication at the right intervals is crucial for maintaining the performance and longevity of the elevator system. 4. Faults Caused by Mechanical Fatigue Some mechanical components are subjected to repeated stresses such as bending and shearing over time, which can lead to fatigue and a reduction in strength and flexibility. If a component is exposed to forces beyond its capacity, it may break, causing mechanical failures or accidents. For instance, wire ropes that endure constant tensile and bending stress over time can develop uneven force distribution. One strand may become overstressed and break first, increasing the load on the remaining strands and potentially causing a chain reaction. In the worst case, all the wires may break, leading to a major accident. In summary, regular maintenance, proper lubrication, and consistent inspection of key components can significantly reduce the risk of mechanical failures. By staying proactive and attentive to these factors, elevator systems can operate safely and efficiently for extended periods.