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What are constant force springs and how are they used?
What are constant force springs and how are they used?
Constant force springs are specialized springs that are used to provide a constant force over a range of motion. This makes them ideal for use in a variety of applications, such as automotive or robotic systems.under we will take a closer look at what constant force springs are and how they can be used. What are constant force springs? A constant force spring is a type of spring that produces a constant force over its entire range of deflection. This type of spring is often used in applications where a stable force is required, such as in the actuation of a valve. Constant force springs don’t have much in common, either in form or function, with standard helically wound springs. For starters, constant force springs are formed from pre-tensioned metal strips, rather than wire. At their most basic level, however, constant force springs do exactly what other springs do. That is, they conform to Hooke’s Law. Hooke’s Law essentially states...
Pre warmtebehandeling van de lente:
Pre warmtebehandeling van de lente:
Spring has been very common in people's daily production and life, ranging from planes, trains and cars to household appliances and daily necessities, and even children's stationery for school. It can be seen how important spring is to our life.     What is the definition of spring? It is a mechanical part that uses elasticity to work. Generally made of spring steel. It is used to control the movement of mechanical parts, mitigate impact or vibration, store and measure the size of force. It is widely used in machines and instruments.     For a professional spring manufacturer, the most basic production goal is to infinitely pursue the high quality of products. Therefore, in order to improve the performance of the spring, it is often assisted by pre heat treatment, that is, the process of strengthening the quality of spring steel is used to further strengthen the spring.     In fact, the so-called pre heat treatment is what we often...
Do you really understand the variable force spring?
Do you really understand the variable force spring?
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 to design various elastic curve changes in specific occasions, which is the output force value can be arbitrarily desired.     The variable force springs can be customized for various elastic curve changes according to specific occasions, such as department store shelves propulsion device, pen-type drug syringe ( insulin ) and cordless curtain.      What are the reasons for using variable force springs in these applications ? What are they trying to achieve ?     In the point of purchase display, variable force springs are commonly used in trays that push product forward in a controlled manner. Variable force spring corporated into pusher trays aid...
Design steps of constant torque spring
Design steps of constant torque spring
Constant torque spring is a constant force spring with special force moving between two spools. The spring is stored on the storage spool and wound reversely on the output spool. When released, torque is obtained from the output spool when the spring returns to its natural curvature on the storage spool. The spring does not need to be connected to the storage spool. The spring can be installed in a cavity without storing the spool at all. However, friction will then be introduced and torque requirements will change. The torque generated by the constant torque spring will increase slightly after several revolutions. Constant torque, even negative torque, is also possible. Negative gradients of up to 50% can be achieved in some applications. As for the design of constant torque spring, when considering the use of constant torque spring, it is strongly recommended that you talk with Qianye engineers and study various design parameters. Some initial design calculations can be carried out...
[Qianye precision]Physical design and recoil force of constant force spring
[Qianye precision]Physical design and recoil force of constant force spring
 In most types of springs, when the spring is compressed and then relaxed, the force applied is proportional to the distance the spring is stretched. Unlike ordinary springs, constant force springs do not comply with this rule. Due to the physical design of constant force spring, its return force remains constant. Therefore, constant force springs are useful in many applications that require consistent recoil.     The behavior of ordinary springs can be described by a mathematical equation called Hooke's law. The law points out that the force of the recoil spring in the recoil direction is equal to the distance between the spring displacement and the equilibrium point. In other words, it is how much the spring is elongated and multiplied by the mathematical constant, that is, the spring stiffness. The spring recoils in the direction opposite to the stretching direction. Because many elastic materials work in this way, Hooke's law has a wide range of applications in the field of physics.  ...
Constant force spring Product
 Montage- en montagediensten
Montage- en montagediensten
Qianye Company levert niet alleen de productie van precisieveren, maar richt zich ook op het structurele ontwerp en de functionele oplossingen van het gehele veersysteem en kan een complete set systeemproductie en -assemblage leveren
 Variabele krachtveer
Variabele krachtveer
Characteristic: The appearance of variable force spring and variable torsion spring is very similar to constant force spring and constant torsion spring. Variable force springs and variable torsion springs can break through the influence of Hooke’s law on traditional springs, so that stroke and force no longer increase proportionally, but can achieve various elastic force-displacement combinations such as negative slope stepped constant force, which can be mechanically For engineering requirements, use the relationship between elastic force and displacement stroke to design various elastic curve changes in specific applications. There are a variety of different variable force springs, variable torsion spring application designs, and solutions. The manufacturing range of variable force springs and variable torsion springs: The thickness is 0.05~0.85mm, and the width is 2.0~65mm.
 Koolborstelveer
Koolborstelveer
Characteristic: 1. Due to the constant force, regardless of the length of the carbon brush and the commutator, the pressure remains the same. 2. Constant force spring reduces carbon brush loss, prolongs the life of carbon brush, and reduces current loss. To 3. Small motors can be designed to reduce the outer diameter of the motor. 4. The length of carbon brush can be increased. To 5. A larger commutator can be used. To 6. Reduce sparks and reduce electromagnetic interference. Constant force spring for single roll carbon brush 1. Carbon brush width 2. Carbon brush height: The spring width must be smaller than the carbon brush height 3. Length of abradable carbon brush: The spring stroke must be greater than the length of the abradable carbon brush 4. Contact pressure required for carbon brush and commutator: required spring force Constant force spring for double-rolled carbon brush 1. Carbon brush width 2. Carbon brush height: The spring width must be...
 Constante torsieveer
Constante torsieveer
Characteristic: The fixed (constant) torque spring (spring) is made of stainless steel. The external force rewinds the mainspring from its natural state to the output wheel (energy storage). When the external force is removed, the spring will return to its natural state. At the same time, a constant torque force (stored elastic force) is generated (released) on the output wheel, so it is called a constant torque generator. strip. Belongs to (a use method in constant force spring) Advantage: The advantages of fixed-torque springs compared to power (scroll) springs: 1. The torque will not change due to the increase in the number of revolutions. To 2. There is no limit to the number of available turns, and the design of multi-turn turns mostly adopts a fixed-torque spring. To 3. The number of invalid rotations is small, more energy can be stored, and the efficiency is higher. To Manufacturing range of fixed torque spring: The thickness is 0.05~0.85mm, and the width...
 Constante krachtveer
Constante krachtveer
Characteristic: Constant force (constant force) springs are rolled by stainless steel strips. The high-strength steel strips are shaped by specific production spring equipment. When the external force straightens them, the spring will naturally wind back and produce elasticity, but it reaches us The goal can return to the starting point we specified after being shifted. Advantage: The advantages of constant force spring over traditional wire spring: 1. In a very small installation space, a very high elastic output can be achieved. 2. Maintain a constant elasticity in all strokes. 3. The pre-stroke stroke is short, and only a short stroke is needed to achieve the required elasticity. 4. The original length is less than the wire spring, and the stroke is unlimited. The manufacturing range of Dingli Clockwork: The thickness is 0.05~0.85mm, and the width is 2.0~60mm. Principle of the scene: The constant force spring has the characteristic of maintaining a constant force during a long stroke, and can achieve...
 Krachtveer
Krachtveer
Characteristic: The power spring is coiled by steel strip. A spring box is required to limit its outer diameter. The center of the spring is connected to the shaft. When an external force is applied to make the shaft and the spring rotate relative to each other, the spring will be wound on the shaft and stored Torsion, when the external force disappears, the spring generates torsion on the shaft or spring box. Advantage: Power springs are divided into natural power springs and pre-stressed power springs according to their relaxed shape. In contrast, the pre-force type power spring can store 25% to 55% more torque and provide more effective turns. Product manufacturing range: The thickness is 0.05~0.85mm, and the width is 2.0~60mm. Principle of the scene: The high-precision pen injector uses a unique power spring to provide small and highly accurate drug dosages. A fixed amount of medicine is injected into the body through the constant force of the spring...
Constant force spring News
 Different types of springs and their applications
Different types of springs and their applications

Time:2023-2-6

A spring is a very important mechanical component used in many products to affect motion, improve shock absorption, etc. In other words, rapid prototyping services such as 3D printing and CNC machining can create different types of springs that can be used to influence and manufacture products such as watches and mobile phones. Some of the most widely used products incorporate springs into their designs. This requires knowledge and selection, which requires an understanding of springs and their applications. Therefore, this article discusses springs, their advantages and disadvantages, as well as the different types of springs and their applications. Let's start with spring. A spring is a device that stores energy when a force (from a load) is applied and releases energy when the load is removed. Under normal conditions, regardless of the type of spring used in the product, the spring returns to its original shape when the load is removed. The use of springs in any product is based on Hooke's law. Hooke's Law simply states the relationship between the "force" applied to a spring and its elasticity. Simply put, Hooke's Law states that the force required to compress and stretch a spring is proportional to the displacement of the spring. Different types of springs and their applications Springs are made of different materials, shapes, functions, etc. and thus require a wide variety of applications. Spring is divided into three main classes, each of which has different subclasses. 1. Torsion spring The two ends of the torsion spring are connected to two different components. This separates the two...
 Common Applications of Double Torsion Springs in Medical Devices
Common Applications of Double Torsion Springs in Medical Devices

Time:2023-3-11

Double torsion springs are widely used in medical devices due to their unique mechanical properties and reliable performance. Some common applications of double torsion springs in medical devices include: Surgical Instruments: Double torsion springs are often used in surgical instruments such as scissors, clamps, and forceps. These springs help to provide tension and control the movement of the instrument. Medical Implants: Double torsion springs are used in medical implants such as bone plates, screws, and pins. These springs help to maintain the proper positioning of the implant and prevent it from moving or shifting. Drug Delivery Devices: Double torsion springs are used in drug delivery devices such as autoinjectors and insulin pumps. These springs help to provide the force needed to deliver the medication. Patient Monitoring Devices: Double torsion springs are used in patient monitoring devices such as blood pressure monitors and electrocardiogram (ECG) machines. These springs help to provide the necessary tension to ensure accurate readings.     Diagnostic Equipment: Double torsion springs are used in diagnostic equipment such as ultrasound machines and X-ray machines. These springs help to ensure that the equipment is properly positioned and stable during use. Prosthetics: Double torsion springs are used in prosthetics such as artificial limbs and joints. These springs help to provide the necessary tension and flexibility needed for natural movement. Overall, double torsion springs play a critical role in the performance and reliability of many medical devices. Their unique mechanical properties, including their ability to store and release energy, make them an essential component in the design of these devices.
 How to make the constant force spring produce more force
How to make the constant force spring produce more force

Time:2022-9-15

A common way to install a constant force spring is to use two or more springs to obtain greater force in a narrow space. This may be necessary if the diameter or width of a single spring exceeds the allocated space, but there is room to add multiple smaller springs. When engaging multiple springs, a much smaller spring design can be used. The total force is the sum of the spring forces.       When combining springs, it is recommended to use the same spring for multiple installation. Compared with using two or more completely different springs to realize the load, this method is more economical and the design will be simpler. Since the force is the sum of the springs, the total force required should be evenly distributed between the number of springs used. We will discuss three different mounting methods for use with multiple springs.         1、 Back to back method The back-to-back method uses two springs that expand in opposite directions and produce a very stable extension. The distance between the springs should be far enough to allow the spring material to bend naturally so that the component will not bind when retracted.         2、 Series method When two or more springs are used, it is also a very common practice to install springs in series. Although this method does not have the stability of the back-to-back method, space availability usually determines the use of this design. 3、 Laminar flow method Laminating springs together is the third option in this series. The term...
 Application of Power Spring in Gas Station
Application of Power Spring in Gas Station

Time:2022-9-14

The gas station is a familiar place for everyone. Do you find that the lines of the gas gun are all exposed when passing through the gas station or entering the gas station to refuel? They look messy and unsafe. The car needs to refuel, so you have to go to the gas station to refuel. With the continuous growth of car owners, the passenger flow of gas stations is also increasing. Have you seen the news of the gas station explosion? After a car in a gas station was refueled, due to the negligence of the Refueller, the Refueller did not take out the refuelling gun from the fuel tank port, and the driver of the owner did not check the surrounding conditions of the car, so he started the car. Then the car drove the refueling gun and oil line, pulled down the refueling end connected with it, and caused an explosion. This kind of news is very sad. Once an explosion accident occurs in the gas station, it may cause the explosion of the whole oil tank in the station. Its power is very huge, and the personnel in a certain range around may be seriously threatened. It is understood that the lines of gas guns in foreign gas stations use money collection devices. Now there are a small number of applications in China. At present, there is no large-scale application in gas stations. It uses the characteristics of winding up. It can bring a free contraction process to the line group, and make its winding easier...
 Application of power spring in draw-wire encoder
Application of power spring in draw-wire encoder

Time:2022-9-14

A draw-wire encoder, also known as a string potentiometer, pull wire position sensor, cable extension displacement sensor, or yo-yo potentiometer. It is a cable driven position or displacement sensor for linear position measurement and velocity using a flexible cable (wire) and a spring loaded spool.   The string pot or cable extension sensor is composed of four main components in the shell: 1. High strength stainless steel cable (rope or steel wire rope); 2. Equal diameter spool (drum); 3. Power spring with high torque and long service life; 4. Rotary potential precision sensor.   In the shell of the sensor, a soft high-strength stainless steel cable is tightly wound on a precision machined cylindrical drum (or spool) with constant diameter, which rotates with the winding and unfolding of the measuring cable. In order to maintain the tension and retraction of the steel wire, the spring is connected to the drum. Then connect the spool to the shaft of the rotary potential precision sensor (or encoder). When the sensor string extends linearly with the moving object, it will cause the roller and sensor shaft to rotate.   For displacement or position measurement, the main body of the sensor is installed on the fixed surface, and the end of the flexible cable is connected to the moving object. When the object changes its position, the cable unfolds and reels and the rotating spool drive the shaft of the sensing device, generating an electrical signal proportional to the linear extension or displacement of the cable. For speed measurement, a tachometer is required. The power spring is mainly used in the equipment of...
 Qianye Precision’s design on industrial doors
Qianye Precision’s design on industrial doors

Time:2022-9-14

As the building access door of modern plant, the industrial door must be familiar to everyone. The industrial door has a variety of lifting door modes. It slides upward according to the track installed on the wall, which is fast and stable. At present, the industrial door mainly uses the torsion spring balance system to stabilize the industrial door in the process of operation, so that it can be opened quickly.   Principle of torsion spring balance system: torsion spring balance is the principle that the weight of the door body is balanced by the torsion torque of the torsion spring. The torsion spring balance system of industrial doors is mainly composed of supporting seat shaft, spring, wire hub, steel wire rope and other components, in which the material of torsion spring is more important. Generally speaking, the torsion spring of the torsion spring balance system needs to be made by computer-aided design and professional equipment.   Industrial door balance system analysis what are the small problems of torsion spring balance? In practice, it is difficult to meet the standard requirements due to the influence of spring material and manufacturing process. When the area and weight of the door are increased, the diameter of the torsion spring and the diameter of the steel wire will be thickened, which will affect the sensitivity of the balance of the torsion spring and increase the difficulty in adjustment. The installation of torsion spring balance on the door opening with large height width ratio increases the difficulty in designing the torsion spring balance due...
 The power source of clockwork toy — constant torque spring
The power source of clockwork toy — constant torque spring

Time:2022-9-14

Clockwork toys are not new to children, and children are also very interested in clockwork toys, because clockwork toys will walk around, or go straight or circle, which is very funny. This kind of toy design has lasted for decades. There are many kinds of clockwork toys, mainly cars and animals. They are suitable for children aged 3 to 12. Clockwork toy is the general name of motor toys with clockwork as power device. Spring is a kind of spring machine. In the spring, there is a recyclable coil spring. The principle is similar to that of a gyroscope. When the spring rotates, the coil spring inside is wrapped tightly. In short, it is to accumulate power potential energy, and then the spring returns, which naturally produces power potential energy. The clockwork toy uses a constant torque spring, which is made of stainless steel. The external force reverses the spring from the natural shape to the output wheel (energy storage). When the external force is removed, the spring will return to the natural state and generate constant torque on the output wheel, so it is called constant torque spring. Compared with the power spring, the constant torque spring has the advantage that the torque will not change due to the increase of the number of turns, and there is no limit on the number of turns available. The constant torque spring is mostly used in the design of multiple turns. The number of invalid turns is less, more energy can be stored and the efficiency is higher. When the spring is...
 [Qianye precision]Spring on motor car curtain
[Qianye precision]Spring on motor car curtain

Time:2022-9-14

When taking the high-speed railway, everyone should like to look at the scenery outside the window. I don't know if you have paid attention to the curtains on the bullet train. When I take the bullet train, I often find that there is no buckle on the curtain slide rail on the bullet train, but I can still go up and down freely and won't fall or bounce back. That is to say, when I pull down 1 / 3, it will stop at 1 / 3, and when I pull down half, it will stop at half; If you want to put it away, just push it up and stop where you push it? It's different from the curtains I usually see at home. Isn't it affected by gravity? With this curiosity, let me show you that the bullet train should be a spring roller shutter. The elasticity of the spring roller shutter can adjust the rise and fall of the fabric within a certain range and can stop at any position. Gently pull down and let go. The fabric can bounce back to the top of the curtain leisurely and freely. The operation is light, the operation time is short, and the stay position is arbitrary. Compact structure, flexible and convenient operation. Because the addition of variable force spring makes the roller shutter achieve this effect, many variable force springs on the market can not achieve the effect that the force is changing in any section, so many electric roller blinds will add some components (deceleration device, damping device, this...