domov > Blog > Pogosta težava > Design and manufacturing method of constant force spring

Design and manufacturing method of constant force spring

vir:Natančnost Qianye čas: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 natančnost 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.

Zadnje novice

 Title: Exploring the Applications and Benefits of Variable Force Springs
Title: Exploring the Applications and Benefits of Variable Force Springs

Time:2023-4-22

Variable force springs, also known as constant force springs, are coiled springs that exert a constant force throughout their range of motion. These springs are designed to provide a smooth and consistent force over a wide range of deflection, making them ideal for a variety of applications. Applications of Variable Force Springs Variable force springs have a wide range of...

 Does your nail gun have the problem of not hitting the nail?
Does your nail gun have the problem of not hitting the nail?

Time:2023-6-13

Does your nail gun have the problem of not hitting the nail? Because there is no tension in the constant force spring that pushes the nail, naturally, no nail can be driven. The pushing device of the nail gun uses the constant force spring, because the constant force spring has the characteristic of keeping the constant force in the long...

 Introduction to Variable Force Springs: What They Are and How They Work
Introduction to Variable Force Springs: What They Are and How They Work

Time:2023-5-7

Variable force springs, also known as variable rate springs, are mechanical springs that change their amount of resistive force throughout their compression or extension. Unlike traditional springs that have a fixed rate of resistance, variable force springs can provide a different amount of force depending on the degree of compression or extension. These unique properties make them ideal for many...

 Exploring the Versatile Applications of High Cycle Torsion Springs
Exploring the Versatile Applications of High Cycle Torsion Springs

Time:2023-7-21

Introduction High cycle torsion springs are a type of mechanical spring commonly used in various industries and applications. These springs are designed to provide rotational force when twisted, making them ideal for a wide range of purposes that require torque or rotational energy. In this article, we will explore the versatile applications of high cycle torsion springs and discuss their...

 Application of Spiral Torsion Springs: A Versatile Solution for Mechanical Systems
Application of Spiral Torsion Springs: A Versatile Solution for Mechanical Systems

Time:2023-9-3

Introduction: Spiral torsion springs, also known as clock springs, are a fundamental component in various mechanical systems. They possess unique properties that make them versatile and efficient for a wide range of applications. This article explores the applications of spiral torsion springs and highlights their advantages in mechanical systems. Automotive Industry: One of the significant applications of spiral torsion springs...

 Do you know the principle of medical cart?
Do you know the principle of medical cart?

Čas: 2022-9-14

During the normal operation of the hospital, it is often necessary to use the medical cart. The medical cart refers to the ward protection and transfer of medical equipment. The medical cart prevents the patient from causing further injury in the process of transporting the patient. At the same time, it also reduces the labor intensity of medical staff or...

Product