Casa > Blog > Problema comune > Design and manufacturing method of constant force spring

Design and manufacturing method of constant force spring

fonte:Precisione di Qianye volta: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.

   Precisione di Qianye 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.
tag: , ,

Ultime notizie

 Application of variable force spring in electric roller shutter
Application of variable force spring in electric roller shutter

Ora: 14-9-2022

The electric roller shutter has many advantages, such as beautiful and simple appearance, firm and durable structure, etc. the roller shutter is suitable for a variety of places, such as business office buildings, hotels, restaurants, offices and homes (used as gauze curtain), especially for large-area glass curtain walls. When the roller shutter fabric is put down, it can soften the...

 How to solve the problem of fan lifting function by dint spring
How to solve the problem of fan lifting function by dint spring

Ora: 13-9-2022

We all know that gravity of the earth's center will drop rapidly to the bottom point when the object has no support, and it will be heavy when it rises. Similarly, when the fan moves up and down, it will also be affected by gravity. Therefore, we all hope that the fan will be more light when it is lifted...

 Qianye constant force spring helps fight the "epidemic" on the experimental platform
Qianye constant force spring helps fight the "epidemic" on the experimental platform

Ora: 13-9-2022

Rapidly improving the ability of nucleic acid detection is the key to winning the war of epidemic prevention and control. Since the outbreak of the current round of the epidemic in Shenzhen, Shenzhen's "Huo-yan" laboratory has been on standby, quickly assembled anti-epidemic forces to fight the "epidemic", and started the anti-epidemic defense battle at home! On January 15, Shenzhen satellite...

 Applicazione delle molle a forza variabile negli espositori per la vendita al dettaglio
Applicazione delle molle a forza variabile negli espositori per la vendita al dettaglio

Ora: 14-9-2022

Le molle a forza variabile sono molto comuni nel punto vendita o nell'industria POP, in particolare negli spingitori per scaffali. Le molle a forza variabile forniscono una forza variabile per soddisfare con precisione i requisiti di forza crescente o decrescente, spingendo il prodotto orizzontalmente in avanti. Grazie alla loro ampia applicabilità, queste molle possono essere viste nell'industria del tabacco, cosmetica, elettronica e medica. Allora perché usare molle a forza variabile in...

 Eccellenti caratteristiche della primavera Qianye
Eccellenti caratteristiche della primavera Qianye

Ora: 14-9-2022

La molla è un tipo di parte meccanica che utilizza l'elasticità per funzionare. Le parti in materiali elastici si deformano sotto l'azione della forza esterna e tornano allo stato originale dopo aver rimosso la forza esterna. È generalmente realizzato in acciaio per molle e i tipi di molle sono complessi e diversi. L'azienda Qianye ha una forte forza produttiva e un numero...

 The Key Role Of Motor Brush Spring In Wind-Turbine Design
The Key Role Of Motor Brush Spring In Wind-Turbine Design

Ora: 14-9-2022

Wind-turbines are proven to create reliable and pollution-free energy, and as technology innovates, the cost to develop and manufacturer them is only becoming more affordable. Research demonstrates that to get the most return on turbines, whether onshore or offshore: the bigger the turbine, the better. There are two reasons for this: larger rotors and blades increase the total potential production...

Design and manufacturing method of constant force spring Product
 Servizio di progettazione di ottimizzazione
Servizio di progettazione di ottimizzazione
Dalle idee di prodotto, dal design alla produzione del prodotto finito, possiamo assistere i clienti nel completarli e aiutare i clienti a ottimizzare i loro prodotti dal punto di vista professionale dell'uso primaverile, accelerare...
 Molla a torsione costante
Molla a torsione costante
Caratteristica: La molla a coppia fissa (costante) (molla) è realizzata in acciaio inossidabile. La forza esterna riavvolge la molla principale dal suo stato naturale alla ruota di uscita (accumulo di energia). Quando il...
 Primavera di potenza
Primavera di potenza
Caratteristica: la molla di alimentazione è avvolta da una striscia di acciaio. È necessaria una scatola a molla per limitarne il diametro esterno. Il centro della molla è collegato all'albero. Quando...
 Molla a forza costante
Molla a forza costante
Caratteristica: le molle a forza costante (forza costante) sono arrotolate da nastri di acciaio inossidabile. I nastri in acciaio ad alta resistenza sono sagomati da specifiche attrezzature per molle di produzione. Quando la forza esterna li raddrizza, il...
 Servizi di montaggio e montaggio
Servizi di montaggio e montaggio
Qianye Company non fornisce solo la produzione di molle di precisione, ma si concentra anche sulla progettazione strutturale e sulle soluzioni funzionali dell'intero sistema di molle e può fornire un...
 Molla per spazzole di carbone
Molla per spazzole di carbone
Caratteristica: 1. A causa della forza costante, indipendentemente dalla lunghezza della spazzola di carbone e del collettore, la pressione rimane la stessa. 2. La molla a forza costante riduce la spazzola di carbone...