Home > Blog > Industry information > Constant Torque Spring Motor

Constant Torque Spring Motor

source:Qianye Precision time:2022-9-14
A constant torque spring motor is a strip of prestressed spring material that forms a coil and is stored on a small storage drum. The free end is then pinned and rewound onto the larger output drum; this is the “winding” part of the constant torque spring cycle. When the output drum is released, the spring will return to the storage drum to assume its natural curvature, rotating the output drum and providing an almost constant torque.
       Constant torque springs are made of type 301 high quality stainless steel and are supplied in coil form for mounting on the motor drum. Its main features are: 1. Long time deflection under almost constant torque. Positive or limited negative gradients can be achieved. 2. Minimal inter-coil friction and resulting hysteresis, which is common in power springs. 3. Rotary motion is provided directly from the output drum or linear displacement by using cables and spools.

       Many applications utilize constant torque spring motors, such as: cord retractors, balance retrieval and return applications, drive motors, cordless curtains, and more. The spring features a high turn design, making it ideal for balancing applications. When they are fully turned, the springs apply a constant torque. You can also guarantee high torque levels. This is due to their compactness and high efficiency.
       The function of the constant torque spring motor depends on the design. The size of the spring can vary. Therefore, they make them suitable for use in a variety of applications. We strongly recommend that you consult Qianye Precision at the design stage, which will greatly facilitate the further assembly process.
       There are two ways to connect a constant torque spring motor. If the connection direction is the same, it is called a type A motor. If the connection is reversed, it is called a B-type motor. See illustration below.

A type constant torque spring motor    B type constant torque spring motor
       Type A and Type B constant torque spring motors share some similarities. These include ease of assembly and operation. Almost constant torque force, high number of turns, however, the torque level of the B type is higher than that of the A type. The spring on the stretch storage drum ensures constant torque. Spring wants to return to its original shape. The movement of the output drum produces a constant torque.
       The design of constant torque spring motors plays an important role in the efficiency of your application. The factors you should consider are: 1. Shaft – including inner and outer diameters. 2. The working height of the applied load. 3. Carrying capacity. 4. Load capacity depends on application. 5. Material, we usually use stainless steel or high carbon steel as the raw material of the spring.
       You can choose our standard constant torque spring for motor design. Additionally, if your application requires unique springs, customization is possible. 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.

Latest News

 China Long Compression Springs manufacture: The Key to Efficient and Reliable Mechanical Systems
China Long Compression Springs manufacture: The Key to Efficient and Reliable Mechanical Systems

Time:2023-7-14

Introduction: In the world of mechanical systems, efficiency and reliability are of utmost importance. Achieving these qualities requires careful consideration of every component, including springs. Long compression springs, in particular, play a crucial role in ensuring the proper functioning of various mechanical systems. This article will delve into the features, benefits, and applications of long compression springs, highlighting their significance...

 High Cycle Garage Door Springs: The Key to Long-lasting Durability
High Cycle Garage Door Springs: The Key to Long-lasting Durability

Time:2023-9-6

Garage doors are an essential part of our homes, providing security, convenience, and protection for our vehicles and belongings. One of the critical components that enable the smooth operation of garage doors is the springs. Springs counterbalance the weight of the door, making it easy to open and close. While there are different types of springs available in the market,...

 Choosing the Right Springs for Your Curtains
Choosing the Right Springs for Your Curtains

Time:2023-9-21

Curtains are an essential element of any home décor. They not only provide privacy but also add a touch of style to a room. When it comes to hanging curtains, selecting the right springs is crucial. The springs play a vital role in ensuring that the curtains function properly and stay in place. In this article, we will discuss the...

 High Cycle Torsion Springs made in China: Ensuring Durability and Reliability in Mechanical Systems
High Cycle Torsion Springs made in China: Ensuring Durability and Reliability in Mechanical Systems

Time:2023-7-19

Introduction In the world of mechanical systems, ensuring durability and reliability is of utmost importance. One crucial component that plays a vital role in achieving these objectives is the high cycle torsion spring. This article will shed light on the significance of high cycle torsion springs and how they contribute to the longevity and dependability of mechanical systems. What are...

 Exploring the Superiority of China-Made Steel Torsion Springs in the Global Market
Exploring the Superiority of China-Made Steel Torsion Springs in the Global Market

Time:2023-11-23

Torsion springs are a critical component in various industries such as automotive, aerospace, and manufacturing. These springs are designed to store and release rotational energy, making them essential for numerous applications. In recent years, China has emerged as a dominant player in the global torsion spring market, offering superior quality and competitive prices. This article aims to explore the reasons...

 Constant Torque Spring Motor: A Powerful and Reliable Solution for Your Mechanical Needs
Constant Torque Spring Motor: A Powerful and Reliable Solution for Your Mechanical Needs

Time:2023-6-2

If you are in search of a powerful, reliable, and efficient solution for your mechanical needs, look no further than the constant torque spring motor. This innovative technology offers a wide range of benefits that make it an ideal choice for a variety of applications, from industrial manufacturing to home appliances. What is a Constant Torque Spring Motor? A constant...

Product