Hjem > Blog > Fælles problem > Design and manufacturing method of constant force spring

Design and manufacturing method of constant force spring

kilde:Qianye præcision tid:2022-9-14

 Design and manufacture a complete set of constant force springs for a variety of applications in almost all industries, from medical care to aerospace and general household products. The constant force spring is different from the traditional spiral wound spring. They are made of pre tensioned high-yield metal strips (usually stainless steel) rather than wires.

Constant force springs are classified as “tension springs”. When winding, the metal strip resists uncoiling with nearly constant resistance. When extended, the internal stress of the metal resists any load force at a nearly constant rate. Once the spring extends to a length of 1.25 times its diameter, it reaches full load and produces a nearly constant force. According to the size of the spring and the load it supports, the fatigue life cycle of the constant force spring is between 2500 and 1000000 times.

    Constant force springs are commonly used in automotive engineering, aerospace engineering, medical and retail. Some common applications are: Cable retractor, motor, spacecraft, fitness equipment, door closer, hose retriever, nuclear magnetic resonance scanner, X-ray machine, point of sale display, toys, furniture accessories, retractable tape measure or dog line, retractable vacuum cleaner line, etc.

    If you choose a constant force spring for an application, you must first consider several factors.

Material selection is important, as is the thickness and width of the metal strip. The most commonly used metal is grade 301 stainless steel because it can make consistent high-quality and strong constant force springs. Other materials are available, such as high carbon steel, Inconel, etc., which may be more suitable for springs that need to resist high load forces.

   To select or manufacture the correct spring, you must know the approximate initial force or load to overcome when the spring reaches the “constant force” stage. The higher the initial load, the larger the spring diameter you need.

    In addition, the spring end details need to be designed to be fixed or connected to the components that will curl and unfold.

    To determine the size of a constant force spring, certain guidelines must be followed. To calculate the total length of the spring strip, the following formula can be used: total length = circumference wound on the drum + initial deflection + maximum working deflection (ID x π x 1.5) + I F + W F.

   Limitations of constant force spring

   External factors will limit the life cycle of constant force spring.

  For example, debris or particles can clog the system, slowing or hindering coiling and deployment. If the spring mechanism is open to the element or is often in contact with corrosive fluid, corrosion may occur, affecting the movement of the spring. Extreme temperatures can also affect spring operation. This may be of particular concern in aerospace engineering.

   Qianye precision is a global spring manufacturer with more than 20 years of spring manufacturing experience. As a professional spring supplier, we can provide all kinds of constant force springs and various application designs and solutions of spring springs. Please contact 13827443413 Liu Gong! We sincerely suggest that customers can obtain consulting services with our R & D engineers at the early stage of product introduction and R & D. According to the needs of customers and assist in product design, development and proofing, so that your products can find the best solution to meet your application needs.

Seneste nyt

 Exploring the Versatility and Benefits of Flat Coil Springs
Exploring the Versatility and Benefits of Flat Coil Springs

Time:2023-6-20

Flat coil springs are an integral component in the manufacturing industry, used for a variety of applications such as automotive, aerospace, medical equipment, and even everyday household appliances. These types of springs come in different materials, sizes, and shapes, and are incredibly versatile in their use. One of the most significant benefits of flat coil springs is their ability to...

 Miniature Torsion Springs: Small Springs with Big Potential
Miniature Torsion Springs: Small Springs with Big Potential

Time:2023-10-17

Springs are an essential component in many mechanical devices and systems. They store and release mechanical energy when subjected to external forces, making them indispensable in a wide range of applications. While springs come in various sizes and designs, one specific type that has gained significant attention is miniature torsion springs. These small springs may be diminutive in size, but...

 Unveiling the Importance of Carbon Brush Springs in Electrical Appliances
Unveiling the Importance of Carbon Brush Springs in Electrical Appliances

Time:2023-5-7

In electrical appliances, carbon brush springs play a crucial role in ensuring proper functionality of the device. These springs are responsible for maintaining the contact between the carbon brushes and the commutator. Without them, the brushes would not be able to transfer electrical current from the power source to the device. Carbon brush springs are made from high-quality materials, such...

 Spiral Wound Torsion Spring: A High-Performance Component for Precision Machinery
Spiral Wound Torsion Spring: A High-Performance Component for Precision Machinery

Time:2023-6-1

Spiral wound torsion springs are an essential component of precision machinery. They are designed to provide a high level of performance, reliability, and durability in challenging working conditions. These springs are widely used in a variety of applications, including aerospace, automotive, medical, and industrial equipment. The spiral wound torsion spring is a type of mechanical spring that is typically made...

 Exploring the Functionality of Miniature Torsion Springs in Modern Technology
Exploring the Functionality of Miniature Torsion Springs in Modern Technology

Time:2023-6-3

Torsion springs are one of the most critical components in modern technology. They are utilized in various applications, such as automotive, aerospace, medical devices, electronic gadgets, and many more. Torsion springs generate torque when twisted, providing a rotational force to devices. They can be found in miniature sizes, making them essential in micro-electronics and other applications. In this article, we...

 Exploring the Function and Design of Torsion Spring Mechanisms
Exploring the Function and Design of Torsion Spring Mechanisms

Time:2023-10-19

Torsion spring mechanisms are widely used in various applications due to their ability to store and release rotational energy. These mechanisms are commonly found in devices such as door hinges, vehicle suspension systems, and mechanical watches. In this article, we will explore the function and design principles of torsion spring mechanisms. Function of Torsion Spring Mechanisms Torsion springs are designed...

Product