Дом > Блог > Информация об отрасли > Design of Constant Force Spring in Spool Damper

Design of Constant Force Spring in Spool Damper

источник:Цянь Точность время:2022-9-14

 When powered by a damped constant force spring mounted on the spool, there are several key principles that influence the design of linear motion applications. These principles support robust and consistent performance of products in a variety of applications, including automotive and aircraft interiors, industrial machine components, and many other user interface applications.

The example components shown above will be cited as examples of the various design principles detailed below. This example assembly has a sliding drawer (shown in red) powered by a constant force spring mounted on a spool (spool in green; constant force spring shown in yellow) running within a mounting base (shown in grey), such as a central Console a car. A ratchet or door latch mechanism (not shown) can be implemented to allow the tray to be locked in place with a single press by the user. This example is a typical set of applications used in the automotive industry.

       1. Preload spring

       When a constant force spring is in its free state, it does not exert any force. As the spring stretches, the spring force rapidly increases from zero to nominal load. However, to avoid including this “accelerated” part of the work envelope, the design can use preloading. An example of preloading is shown in the figure below. Note that although the mechanism is retracted, the depicted spring is extended.
       To include preload in the design, ensure that the spring extends a distance equal to the outer diameter of the coil during assembly in order to engage the mounting feature. Therefore, at the beginning of the operating range, the spring has extended far enough to reach the rated load. Note that the picker does not affect the preload length.

        2. Spool – install constant force spring

        The ideal fitting for a constant force spring on the spool should be tight enough to prevent the spring ring from sliding or spinning on the spool diameter. To ensure a good fit, Qianye Precision usually recommends increasing the spool diameter by 12%. For example, if the nominal spring ID is 1.00″, a 1.12″ spool diameter is recommended.

        Spool design also affects ease of assembly. The simplest design for assembly purposes is a plain cylindrical spool with a hole through the shaft for the shaft. The exclusion of flanges, although sometimes not feasible, allows for faster and simpler assembly.

       When dealing with the physical enclosure of the components inside the system, be sure to leave enough room for the natural movement of the springs. Not having enough space to limit this movement can result in noise and excessive friction within the system. In cases where the thickness and length combine to form a larger outer diameter (outer diameter), the outer diameter can be used in place of the inner diameter to ensure sufficient space.

       3. Constant force spring

Qianye Precision provides standard and customized options to meet the various needs of customers. The image below shows two types of constant force springs from the many options we offer.

       Constant force springs can apply a variety of design features to meet space constraints, optimize assembly motion, and effectively reduce part count, thereby reducing material and labor costs. These can be applied along with other principles to achieve assembly designs that meet requirements and exceed expectations.
       Shenzhen Qianye Precision Metal Co., Ltd. is designed for customer-specific applications. Using professional technology to meet your specified requirements, we sincerely recommend that customers obtain consulting services from our R&D engineers in the early stage of product introduction and development. Design, develop, and sample products according to your needs, so that your products can find the best solution to meet your application needs.

Последние новости

 High Precision Springs: Achieving Accurate and Reliable Performance
High Precision Springs: Achieving Accurate and Reliable Performance

Time:2023-6-23

Springs are an essential component in various mechanical devices, ranging from simple toys to complex machinery. They play a vital role in controlling motion, absorbing shock, and storing energy. However, not all springs are created equal. High precision springs are designed to provide accurate and reliable performance, making them ideal for critical applications where precision and consistency are paramount. What...

 The Spring Force Constant: What It Is and Why It Matters in Physics
The Spring Force Constant: What It Is and Why It Matters in Physics

Time:2023-5-31

The spring force constant is an essential concept in physics that plays a crucial role in understanding how objects move and behave in response to external forces. In this article, we will explore what the spring force constant is, why it matters in physics, and how it is calculated. The spring force constant, also known as the spring constant or...

 What you need to know about Constant Force Springs
What you need to know about Constant Force Springs

Time:2022-12-30

In this blog post, we will be discussing what constant force springs are, and what applications they are used for. We will also be discussing the different types of constant force springs, and how to select the right one for your application. A constant force spring is a type of spring that is designed to provide a constant amount of...

 Spiral Torsion Spring Design: Enhancing Performance and Efficiency
Spiral Torsion Spring Design: Enhancing Performance and Efficiency

Time:2023-11-29

Spiral torsion springs are widely used in various mechanical systems to provide rotational energy and ensure smooth operation. These springs are designed to twist along their axis when subjected to a torque or force, storing potential energy in the process. The efficient design and proper selection of spiral torsion springs are crucial for enhancing the performance and efficiency of mechanical...

 Exploring the Functionality of a Constant Torque Spring Motor
Exploring the Functionality of a Constant Torque Spring Motor

Time:2023-9-10

Introduction: Constant torque spring motors are devices that convert the potential energy stored in a wound spring into mechanical work. These motors find applications in various industries, including automotive, aerospace, and medical equipment. In this article, we will delve into the functionality of a constant torque spring motor and explore its working principle, advantages, and limitations. Working Principle: A constant...

 Maximizing Your Potential with Our Optimization Design Service
Maximizing Your Potential with Our Optimization Design Service

Time:2023-5-7

Maximizing your potential is a crucial aspect of any successful business. One of the key ways to achieve this is through optimization design. At our optimization design service, we specialize in helping businesses reach their full potential by optimizing their design processes. Optimization design is the process of improving the efficiency and effectiveness of a product or process. It involves...

Product
 Пружина угольной щетки
Пружина угольной щетки
Характеристика: 1. Благодаря постоянному усилию, независимо от длины угольной щетки и коллектора, давление остается одинаковым. 2. Пружина постоянной силы уменьшает угольную щетку...
 Услуга оптимизации дизайна
Услуга оптимизации дизайна
From product ideas, design to finished product manufacturing, we can assist customers in completing them, and help customers optimize their products from the professional perspective of spring use, speed up...
 Пружина постоянного кручения
Пружина постоянного кручения
Характеристика: Пружина фиксированного (постоянного) крутящего момента (пружина) изготовлена из нержавеющей стали. Внешняя сила перематывает боевую пружину из ее естественного состояния в выходное колесо (накопление энергии). Когда...
 Услуги по сборке и монтажу
Услуги по сборке и монтажу
Компания Qianye не только обеспечивает производство прецизионных пружин, но также уделяет особое внимание конструктивным и функциональным решениям всей пружинной системы и может предоставить полный...
 Пружина постоянной силы
Пружина постоянной силы
Характеристика: Пружины постоянной силы (постоянной силы) прокатаны полосами из нержавеющей стали. Полосы из высокопрочной стали формируются на специальном производственном пружинном оборудовании. Когда внешняя сила выпрямляет их,...
 Пружина переменной силы
Пружина переменной силы
Характеристика: Внешний вид пружины переменной силы и пружины переменного кручения очень похож на пружину постоянной силы и пружину постоянного кручения. Пружины переменного усилия и регулируемые торсионные пружины могут...