Compression springs are a commonly used component in mechanical structures and are widely used in a variety of mechanical equipment, household appliances, automobiles, industrial machinery and other fields.

In many applications, they are used to produce a variety of motion, vibration or force reaction. The load carrying capacity of compression springs is a very important performance indicator. In this article, we will discuss the relationship between the load carrying capacity of a compression spring and the degree of compression.

Definition and Calculation of Load Capacity of Compression Springs

A compression spring is an elastic element made of fine wire or steel plate, and its shape can be cylindrical, conical, convex, and so on.

If a compression force is applied to a compression spring, it will be compressed, resulting in an elastic deformation close to the elastic limit. As the compression force increases, so does the degree of compression. At this point, the compression spring will reach its limiting point, producing greater deformation until it eventually collapses or breaks.

The load carrying capacity of a compression spring is the amount of load it can carry in a state of stress and its corresponding state of strain.

In practice, it is sometimes necessary to determine the load carrying capacity of a compression spring based on design requirements. In this case, one usually uses parameters such as elastic strain energy and proportional limit for calculation to determine the relationship between the degree of compression and load.

Relationship between compression and load

For any given compression spring, the relationship between its load carrying capacity and the degree of compression is very important.

This relationship is calculated from a combination of design parameters, material selection, processing, temperature, frequency and other factors.

Normally, the larger load of a compression spring and the degree of compression are inversely proportional to each other, i.e., under the same conditions of material, process, etc., the load of the compression spring will decrease with the increase of the degree of compression; and vice versa.

When a compression spring is in normal operating condition, it is usually necessary to keep it in a state of compression close to its limit.

This requires careful adjustment of the compression level of the compression spring to ensure that it will not break during operation.

If the compression is too low, the compression spring loses its elastic deformation and is unable to provide effective force. If the compression level is too high, the compression spring will break and even cause irreparable damage to the equipment.

Sometimes it is necessary to increase the material strength or deformation limit of a compression spring in order to bring the degree of compression up to the design requirements.

However, this may result in a shorter life of the compression spring or problems such as plastic deformation or fatigue fracture under extreme loads.

Therefore, when selecting materials and processing, a number of trade-offs must be made between strength, plasticity, toughness and fatigue properties to ensure that the compression spring will function properly under the expected operating conditions and requirements.

In summary, there is a close relationship between the load carrying capacity of a compression spring and the degree of compression.

In practice, the degree of compression of a compression spring must be carefully calculated and adjusted to ensure that it can provide the required force without excessive deformation or fracture. In addition, a comprehensive consideration of factors must be taken into account when selecting materials, processing and design parameters to ensure that the compression spring will have adequate life and stability over a long period of time.