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 the continuous operation of elevators, vibrations and other factors can cause fasteners to loosen or become unstable. This may lead to misalignment, detachment, or loss of precision in the machine, resulting in excessive wear and potential damage to elevator components. Regular inspections and tightening of connections are essential to prevent such issues. 2. Faults caused by natural wear and tear Mechanical parts naturally wear over time due to constant movement and contact. When the level of wear becomes significant, replacement is necessary. Therefore, periodic maintenance and part replacements are crucial to avoid unexpected failures that could lead to accidents or financial losses. In daily maintenance, timely adjustments and inspections help ensure smooth operation. If wear on sliding or rolling parts is not detected and corrected in time, it can accelerate mechanical degradation, leading to malfunctions. For example, if the wire rope shows signs of wear, it must be replaced immediately, as failure to do so could result in a serious accident. Bearings and similar components also require regular replacement to maintain safety and efficiency. 3. Faults caused by the lubrication system Proper lubrication plays a key role in reducing friction, minimizing wear, and extending the life of machinery. It also helps with cooling, rust prevention, shock absorption, and cushioning. If the lubricant is insufficient, of poor quality, or incorrectly applied, it can lead to overheating, burning, or damage to mechanical components. Ensuring proper lubrication is vital for the safe and efficient operation of elevator systems. 4. Faults caused by mechanical fatigue Some components are subjected to repeated stresses like bending and shearing over long periods, which can cause mechanical fatigue and reduce their strength and flexibility. If a component is exposed to forces beyond its capacity, it may break, leading to mechanical failures or accidents. For instance, wire ropes under prolonged tensile stress and frequent bending can develop uneven wear. If one strand becomes overstressed and breaks, it can create a chain reaction, eventually causing all strands to fail and potentially leading to a major accident. In conclusion, maintaining the elevator through regular inspections, proper lubrication, and attention to fasteners and mechanical gaps can significantly reduce the risk of system failures. These proactive measures ensure the safety and reliability of the elevator over time.