There is indeed a high risk of wire rope breakage in electric hoists, which mainly stems from multiple factors. The following is a detailed analysis of this risk and its causes:

1、 Risk of wire rope breakage

Electric hoists use steel wire ropes to lift and transport heavy objects, so the integrity and reliability of the steel wire ropes are crucial for the safe operation of the equipment. Once the steel wire rope breaks, it can not only cause heavy objects to fall, but also pose a serious threat to nearby personnel and equipment, and even cause major accidents.

2、 The cause of wire rope fracture

Serious rusting:

Steel wire ropes exposed to humid or corrosive environments for a long time are prone to rusting, leading to a decrease in steel wire strength and ultimately resulting in wire breakage or fracture.

Overloading usage:

If the load carried by the electric hoist exceeds its rated carrying capacity during use, it will cause severe overload pressure on the steel wire rope, leading to wire breakage or fracture.

Hard breakage or external impact:

Steel wire ropes may break or fracture due to hard pulling or external strong impact or compression, and the fracture surface is usually in a shear state.

Long term use and lack of maintenance:

Long term use without necessary maintenance and upkeep can lead to increased wear, looseness, or twisting of the steel wire rope, resulting in wire breakage or fracture.

Wear and slip:

During use, the steel wire rope will gradually wear out due to friction with components such as pulleys and drums. When the wear reaches a certain level, the diameter of the steel wire rope will decrease, and its strength will also decrease, making it easy to slip and break.

3、 Preventive measures

To reduce the risk of wire rope breakage in electric hoists, the following preventive measures can be taken:

Regular inspection and maintenance:

Regularly inspect the steel wire rope of the electric hoist, including checking for rust, wear, and any broken wires. At the same time, necessary maintenance and upkeep should be carried out on the equipment, such as lubrication, tightening bolts, etc.

Avoid overloading:

Strictly use the electric hoist according to its rated load-bearing capacity to avoid overloading operations. Before lifting heavy objects, ensure that the weight of the object is within the carrying capacity of the equipment.

Standardized operation:

Operators should receive professional training to understand the usage methods and precautions of electric hoists. During the operation, the operating procedures should be followed to avoid causing hard breakage or external impact on the steel wire rope.

Select high-quality steel wire rope:

When purchasing an electric hoist, reliable and standard steel wire rope should be selected. At the same time, if quality problems or damage are found in the steel wire rope during use, it should be replaced in a timely manner.

Install protective devices:

Install necessary protective devices on the electric hoist, such as limit switches, overload protectors, etc. These devices can provide additional safety measures during equipment operation, preventing accidents caused by operational errors or equipment failures.

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