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.
Oznake: ,

Zadnje novice

 Do you really understand the variable force spring?
Do you really understand the variable force spring?

Čas: 2022-9-15

The variable force springs can break through the traditional spring affected by Hooke ' s law, so that the stroke and force are no longer proportional to increase, but can achieve a variety of elastic displacement combinations such as negative slope stepped fixed force. According to the needs of mechanical engineering, the relationship between elastic force and displacement stroke can be used...

 Uporaba vzmeti s konstantno silo v mehanizmu za uravnoteženje lastne teže naprave za vzorčenje
Uporaba vzmeti s konstantno silo v mehanizmu za uravnoteženje lastne teže naprave za vzorčenje

Čas: 2022-9-14

Trenutno se različne sonde za vzorčenje in reagentne sonde uporabljajo v medicinski laboratorijski opremi za sesanje vzorcev, dodajanje vzorcev, sesanje in testiranje u, dodajanje reagentov, merjenje in druge postopke. Večina naprav, uporabljenih v teh kombinacijah ukrepov, je inteligentnih naprav za vzorčenje, uporabljeni sistem pa lahko samodejno obdeluje podatke. Zaradi polne funkcije in kompleksnega mehanizma...

 Zasnova in funkcija dvojne vzmeti ali vzmeti motorne krtače
Zasnova in funkcija dvojne vzmeti ali vzmeti motorne krtače

Čas: 2022-9-15

 One of the most unique spring designs is called a twin spring.  Its name is derived from the characteristic of having two springs formed from the same strip of stainless steel material.  These custom springs are intended to work together, in unison, doubling the force of a single spring.  Twin springs are a version of a constant force spring, providing constant...

 Do you know what springs are used as stop mechanisms?
Do you know what springs are used as stop mechanisms?

Čas: 2022-9-14

We often find that the spring we make is wrongly used as a stop mechanism in the design. This design defect can occur in all types of springs, including constant force spring, constant torque spring and power spring. For example, consider a simple cable extension product in which the spring retracts the cable into the housing. If the spring is completely...

 Fall Arrester using Qianye power spring
Fall Arrester using Qianye power spring

Čas: 2022-9-14

The fall arrester is also called the speed difference device, which is a protective product. It is suitable for safety protection when the crane is hoisted to prevent the suspended workpiece from accidentally falling. It can effectively protect the life safety of ground operators and the damage of the suspended workpiece. It is used in metallurgical automobile manufacturing, petrochemical industry,...

 How to get the most out of your device with Variable Force Spring
How to get the most out of your device with Variable Force Spring

Time:2022-11-8

If you're looking for ways to get the most out of your variable force spring, you've come to the right place! We will take you to understand. What is a variable force spring and what are its uses? A variable force spring is a device that allows a user to adjust the amount of force applied to a plunger. This...

Design and manufacturing method of constant force spring Product