What is the difference between a wire rope traction elevator and a steel belt traction elevator?

Traction elevators are an integral part of modern buildings, providing not only a convenient means of vertical transportation, but also advancing in safety, comfort and energy efficiency. In the design and manufacture of traction elevators, the traction system is one of its core components. The traction system mainly includes the traction machine, traction rope (including wire rope and steel belt), car and counterweight device. This article will discuss in detail the difference between steel belt traction and wire rope traction in traction elevator and their respective advantages and disadvantages.

I. Wire rope traction elevator

1. Structure and material

Wire rope is usually woven by multiple steel wires, and its structure is divided into single-layer and multi-layer two kinds. Single-layer wire rope is made of a layer of steel wire braiding, while multi-layer wire rope is made of multiple layers of steel wire cross braiding. The structure of multi-layer wire rope is more complex, but its carrying capacity is stronger and safer. The material of wire rope usually adopts high-quality alloy steel, such as 60Si2MnA, 82B, 82A, etc. The material of steel wire usually adopts high-strength steel wire as raw material.

2. Durability and maintenance

As one of the important components of mechanical equipment, steel wire rope is required to have high strength, corrosion resistance, wear resistance, fatigue resistance and other characteristics. In the home elevator using wire rope, the process of getting on and off the elevator is smoother, safer and more reliable. However, the maintenance of wire rope is very important to ensure its safe and reliable operation. We need to inspect and maintain the ropes regularly to ensure their integrity.

3. Advantages

Strong load carrying capacity: The structure and material of the wire rope gives it a strong load carrying capacity, making it suitable for elevators of medium and high floors.

Long service life: due to its high strength and abrasion resistance, the service life of the wire rope is long.

Smooth running: the wire rope has good elasticity, which can provide a smooth running experience.

4. Disadvantages

High installation and maintenance costs: the installation and maintenance of wire rope requires specialized technology and equipment, which is costly.

Occupying large space: the diameter of wire rope is large, which requires large traction sheave and machine room space.

Steel belt traction elevator

1. Structure and material

The steel belt mainly adopts the flat structure, which is made of several steel belts stacked up and down, with metal clamps in the middle, forming a steel belt drive mechanism. The steel belt is generally made of high-strength alloy steel.

2. Durability and maintenance

The abrasion resistance of steel belts is slightly inferior to that of steel wire ropes, but their strength is higher. The service life of steel belts is relatively short, and they cannot be used in high-strength lifting and lowering situations because of their load-carrying capacity limitations. Steel belts require more careful maintenance because they are thin and easily damaged.

3. Advantages

Smaller footprint: the smaller thickness of steel belts reduces the space required for the traction sheave and the machine room.

Low installation and maintenance costs: Steel belts are relatively easy and inexpensive to install and maintain.

4. Disadvantages

Limited load carrying capacity: the load carrying capacity of steel belts is lower than that of steel ropes, and they are suitable for elevators in low floors.

Short service life: due to the limitation of its carrying capacity, the service life of steel belt is relatively short.

Summarize

Through comparative analysis, we can draw the following conclusions:

Applicable scenarios: wire rope traction is applicable to middle and high floor elevators with large carrying capacity and long service life; steel belt traction is applicable to low floor elevators with small carrying capacity and short service life.

Maintenance requirements: wire rope traction requires regular inspection and maintenance, and the maintenance cost is high; the maintenance of steel belt traction is relatively simple, but its service life is shorter.

Space requirement: wire rope traction requires larger traction sheave and machine room space; steel belt traction can reduce the space requirement.

When choosing the traction method of traction elevator, comprehensive consideration should be made according to the specific use demand and scene. For high-rise buildings and large-load applications, wire rope traction is undoubtedly a better choice; for low-rise buildings and small-load applications, steel belt traction is more advantageous. Through reasonable selection and scientific maintenance, the safe operation and long-term use of traction elevator can be ensured.