One of the important parts of the elevator suspension system is the elevator deflector pulley (or idler sheave), which transmits the motor’s power and motion to the wire rope. The deflector pulley has various types and includes two main kinds: deflection sheaves and secondary sheaves, each of which is selected, purchased, and used based on the respective type of elevator. Note that due to the importance of the work performed by this component, only high-quality and original types should be used in elevators. Below, we will discuss all the features, applications, and performance of this component in the elevator system.
What is an Elevator Deflector Pulley?
The elevator deflector pulley is a type of sheave responsible for transmitting the motor’s power and the movement of the wire ropes, and it is a main part of the elevator suspension system. Another name for this sheave is the traction sheave. Due to the importance of this component’s function, you must purchase the original model from a reputable supplier so that the entire elevator system does not face problems due to continuous failure, and the elevator can perform its duty of moving people and objects well.
Important Points in Installing an Elevator Deflector Pulley
Since the elevator deflector pulley plays an important role in the elevator, a number of points must be observed regarding its installation. Some of these points and rules are mentioned below. When purchasing this component, refer to a reliable and committed supplier in this field, receive the necessary consultations about the model and its efficiency, and then proceed with the purchase.
The important points regarding the installation of the elevator deflector pulley are as follows:
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- The deflector pulley must be installed according to existing rules and standards by an experienced expert.
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- Paying attention to the resistance of the deflector pulley against bending and torsional stresses.
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- The component must be intact and free of cracks and grooves.
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- Lubricating the bearings of this component to increase the deflector pulley’s lifespan.
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- Pay sufficient attention to the installation location of this component.
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- Do not overlook setting the alpha angle of this component and pay attention to its balance.
Installation of the Elevator Deflector Pulley
There are a number of rules and standards regarding the installation of the elevator deflector pulley that must be followed to ensure good performance of this component. During installation, the angle between the two sheaves must be properly observed, and the sheave should be installed in a way that it is not loose. The next point that must be observed during the installation of this device is that the grooves of the elevator deflector pulley must be larger than the diameter of the wire rope. If the wire rope diameter is larger, it will cause various problems such as a reduction in the lifespan of this component. Given the importance and intricacies of installing this component, you must entrust its installation to a reputable and knowledgeable professional team.
Types of Elevator Deflector Pulleys
The elevator deflector pulley has different types, including the secondary sheave and the deflection sheave, each with its unique characteristics. The secondary sheave is a common and widely used sheave, utilized in gearless elevators. This type of sheave is installed beneath the motor. Another type of deflector pulley exists, which is the deflection sheave, found and visible in traction elevators.
Price of Elevator Deflector Pulley
Since the currency exchange rate is one of the effective factors in determining the price of this imported component in the country, the price of this component is constantly changing due due to fluctuations in the currency market, and it has experienced a price increase of about 100 to 300 percent. However, the high price of this component should not lead people to buy a similar, counterfeit, lower-priced, and lower-quality part.
Due to the importance of the elevator deflector pulley’s function, people must purchase the original component from reputable suppliers, even if it is expensive, because buying a counterfeit or fake model of this component affects the performance of the entire elevator and may result in major and costly breakdowns. Therefore, considering the mentioned points, bearing the necessary costs when purchasing this device is important and necessary.
Factors Causing Wear on the Elevator Deflector Pulley
Various reasons cause wear on the grooves of the elevator deflector pulley, including the quality of the traction sheave and its components, the quality of the wire rope, and the method of installing the traction sheave and its wire rope setup. To prevent such problems in the deflector pulley groove, it must be constantly inspected and serviced by a technician in this field so that any such problems can be addressed by repair or replacement, preventing larger failures.
Regarding the maintenance of the elevator deflector pulley, you should know all the important points and necessary standards in this area and prevent these problems. If you want your deflector pulley not to constantly fail, it is better to buy the original and high-quality model, and for the purchase of this component, refer to reputable suppliers who offer good after-sales services so that you do not have concerns about the repair and replacement of this component.
Final Word
We discussed one of the important elevator components that has a vital role in the elevator: the elevator deflector pulley. The elevator deflector pulley transmits the motor’s force and motion to the wire rope, and given its importance, the original and high-quality component must be purchased from a reputable supplier, and its installation and regular servicing should be entrusted to a knowledgeable and sufficiently specialized person to increase the lifespan and efficiency of this component. Cabin Plus Industrial Group is one of these reputable suppliers.
