The difference and application between flat cushion and elastic cushion
In mechanical connection and fastening systems, gaskets play a crucial role as indispensable components. Among them, flat pads and elastic pads are two common types of gaskets, which have significant differences in material, function, and application scenarios.
Flat cushion
Definition and Materials
A flat pad is an inelastic gasket typically made of materials such as metal, plastic, or rubber. Its shape is generally circular, with the main purpose of providing a flat contact surface between connecting components.
major function
1. Increase contact area: Flat pads can significantly increase the contact area between bolts and connectors, thereby dispersing the pressure generated by bolts and protecting connectors from damage.
2. Reduce friction damage: By increasing the contact area, flat pads can also reduce friction damage between components, reduce pressure between nuts and equipment, and extend the service life of equipment.
3. Compensate for unevenness: In cases where the connection surface is uneven or not perpendicular, a flat pad can be used as a compensating element to ensure the stability and tightness of the connection.
Application scenarios
Flat pads are widely used in scenarios with small loads that do not withstand vibration loads, such as machine tools, light industrial machinery, ordinary household appliances, toys, etc. In these situations, the flat pad mainly plays a role in increasing the contact area, dispersing pressure, and ensuring the tightness and stability between the connecting parts.
Spring washer
Definition and Materials
A spring pad is a type of gasket with elasticity, usually made of elastic materials such as spring steel and rubber. Its shape is similar to a spring and can produce elastic deformation when subjected to force.
major function
1. Anti loosening and earthquake resistance: The main function of the cushion is to prevent loosening and earthquake resistance. After the nut is tightened, the elastic reaction force of the spring washer will increase the friction between the nut and the bolt, preventing loosening. At the same time, when subjected to vibration loads, the spring pad can compensate for the gap between fasteners caused by elastic deformation, effectively preventing loosening.
2. Increase pre tightening force: The elastic deformation of the spring pad can also increase the pre tightening force of the bolt to a certain extent, ensuring the stability of the connection.
Application scenarios
Elastic pads are suitable for special scenarios with high vibration loads or bearing impacts, such as cars, ships, railway vehicles, etc. In these situations, the anti loosening and seismic performance of the cushion is particularly important to ensure the normal operation of the equipment under harsh working conditions.
The difference between flat cushion and elastic cushion
1. Material and elasticity: Flat pads are made of non elastic materials, while elastic pads have elasticity. This is the most significant difference between the two.
2. Function and application: Flat pads are mainly used to increase contact area, disperse pressure, and are suitable for scenarios with small loads and no vibration load; And the spring pad is mainly used for anti loosening and earthquake resistance, suitable for special scenarios with large vibration loads or bearing impacts.
3. Combination use: In practical applications, flat pads and elastic pads are often used in combination. The flat pad is adjacent to the surface of the machine, and the spring pad is between the flat pad and the nut to fully utilize the advantages of both.
In summary, flat pads and spring pads each play important roles in mechanical connections and fastening systems. Understanding their differences and application scenarios can help us better select and use gaskets, ensuring the stability and safety of device connections.
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Introduction and application of flat pads and elastic pads
View：515 Release Date：2024/8/28 21:47:59