An elevator is a vertical transportation device with various types used for moving people and heavy loads in height, where the cabin moves inside a vertical shaft. It consists of numerous components that work together to perform their tasks. While playing a crucial role in facilitating movement, elevators require regular maintenance and repairs as a complex system. One common issue in elevators is motor oil leakage, recognized as a flaw in this system. In this article, we elaborate on this problem:
The elevator motor is a vital component, including the motor, wire ropes, cabin, safety brake, parachute, control panel, and more. The motor, an electrical part, receives three-phase electric power from the controller and transfers it to the wire ropes, enabling the movement of the cabin and the elevator's displacement. Essentially, the motor is the heart of the elevator, responsible for sufficient power for movement, safety systems during emergencies, control of motion, stopping, and more.
As mentioned, the elevator motor is its primary element, playing a crucial role in movement and displacement. The need for oil in the elevator motor arises due to its moving and external parts requiring lubrication and smoothing. The essential roles of oil in the motor include:
1. Lubrication and reduction of friction
2. Cooling the motor during operation
3. Maintenance of external parts against wear and tear
Using oil improves efficiency, reduces friction, cools the motor, and protects components. Regular inspection and replacement of oil with high-quality ones enhance the elevator motor's lifespan and ensure superior performance.
Characteristics of good motor oil include:
1. Appropriate viscosity: Refers to the oil's ability to maintain consistency at different temperatures.
2. Rust resistance: Prevents the motor from rusting.
3. Anti-wear: Prevents wear and tear on components and the motor.
4. Anti-deposit: Reduces deposit buildup inside the motor.
5. Compliance with standards: Should meet the ISO 6743-7 standard.
When oil is poured into the motor of an elevator to enhance its movement and faces issues, it can lead to various problems, causing damage to the motor and its components, affecting the elevator's operation.
Elevator motor oil leakage can be a symptom of a problem in its system, posing risks to safety and performance. Oil leakage may occur due to reasons such as:
1. Leaks in the oil system, such as seals, hoses, or other parts.
2. Wear and damage to internal components leading to oil leakage, such as piston rings or shafts.
3. Incorrect servicing or maintenance, resulting in component damage and oil leaks.
1. Regular service and maintenance: Purchasing an elevator from a company that provides regular service is advantageous. Regular inspections and periodic servicing play a crucial role in replacing and repairing components, especially motor oil.
2. Use of standard and high-quality oils: Different regions may have varying standards, but there is an international standard, ISO 6743-7, outlining oil properties and characteristics. Choosing the right oil for each type of motor is essential and should be done by experienced professionals. Buying from reliable and reputable sources ensures quality.
3. Safety inspections and tests: If you have a maintenance contract with a reputable elevator company, safety inspections and continuous checks on components and the elevator are conducted regularly. Any issues, including motor oil leakage, are identified and addressed during these services.
4. User awareness: Providing users with proper training on elevator usage and maintenance is crucial. Promptly informing them in case of motor oil leakage is a positive step towards preventing potential hazards.
1. Reduced efficiency: Oil leakage decreases the available amount of motor oil, leading to increased friction, wear, and damage to components, reducing their lifespan.
2. Slipping hazards: Oil leakage in the cabin or shafts can cause slipping accidents for users and maintenance personnel.
3. Brake system malfunction: Oil leakage can infiltrate the brake system, resulting in reduced functionality, potentially causing brake failure.
4. Environmental pollution: Unintended oil leakage into water, soil, or air can have adverse environmental effects.
Before any incidents or damages occur due to elevator motor oil leakage, it is crucial to take preventive actions. Briefly, a comprehensive inspection of the oil delivery system includes:
- Repair or replacement of damaged parts
- Proper adjustment of components like bolts and hoses
- Cleaning and removal of spilled oil
- Use of standard and approved products
- Regular and periodic servicing and maintenance
Engaging with a reputable and experienced company is essential, as it is part of their responsibilities and expertise to inspect all elevator components during regular inspections according to the contract. They will address any repair or replacement needs, ensure proper alignment of components, adhere to standards for each part, and handle oil spills using appropriate absorbents.
Conclusion:
Oil leakage in elevator motors has significant consequences for their performance, safety, and the well-being of individuals. Regular monitoring of the motor system and its oil, along with necessary repairs, is essential. This issue cannot be addressed alone, emphasizing the importance of an experienced elevator technician and a company capable of providing regular maintenance services with high-quality, standard oil. Owjlift, holding an official and valid license from the Industry and Mining Organization, offers over 20 years of experience in designing, installing, and servicing various elevators and escalators. With an active and 24/7 service department, Owj Service is ready to collaborate with you. For more information on design, installation, and service, contact Owjlift.
Is there a specific standard for elevator oil?
Yes, ISO6743-7 is the standard for elevator motor and its oil.
Does regular servicing have any effect on preventing elevator oil leakage?
Yes, regular servicing and maintenance help identify oil leaks or shortages before any incidents occur, allowing timely resolution.
Is servicing and maintenance important at the time of elevator purchase?
Yes, one of the most crucial aspects of purchasing an elevator and entering into a contract with a reputable company is the service and maintenance part, directly related to the well-being of individuals.