Дом > carbon brush spring
Защита пружины щетки
Защита пружины щетки
       Conventional motor arrangements include a rotor with windings to conduct current during machine operation. As the rotor rotates, current is conducted through the rotating elements from sources external to the rotor to the rotor windings. A rotating element such as a slip ring or a commutator contacts the brush spring to conduct current.        There are two main types of brush springs, single-coil brushes and double-coil brushes. The brush springs provide constant pressure to the commutator and slip rings while minimizing brush wear, burning and scratching. They provide excellent work at high speeds for improved motor performance. The brush spring is relative to the rotating element, and the brush spring is ground due to friction during use. It is damaged and needs to be replaced periodically. So sometimes the brushes are replaced during motor downtime. To change the brushes safely, the operator uses one hand (to avoid current passing through the operator's body). Brush carriers...
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...
Analysis on the causes of carbon brush fault of generator set
Analysis on the causes of carbon brush fault of generator set
In recent years, several safety briefings have successively reported shutdown accidents caused by carbon brush or rotor collector ring failure of large generator units, resulting in great economic losses to the enterprise.Carbon brushes are motor brushes. Improper maintenance and use of the carbon brush of the generator set during operation will cause accident load reduction or even shutdown.        Factors leading to carbon brush fault      Electromagnetic factors : when reactive or excitation current is adjusted, the spark of carbon brush has obvious change. When the exciter commutates, the contact between the carbon brush and the commutator is not good, and the contact resistance is too large ; the uneven thickness of the oxide film of the rectifier or slip ring causes the unbalanced distribution of carbon brush current ; or sudden change of load and sudden short circuit lead to abnormal voltage distribution between commutators ; unit overload and imbalance ; carbon brush selection is unreasonable, carbon brush spacing...
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.  ...
Design technology of high precision spring
Design technology of high precision spring
 Spring to ensure good elastic performance, that is, absorb a lot of elastic energy without plastic deformation; Sufficient plasticity and toughness to prevent impact fracture. According to the stress nature, the spring can be divided into tension spring, compression spring, torsion spring and bending spring. According to the shape, it can be divided into dish spring, ring spring, plate spring, spiral spring and truncated cone scroll spring.       The design process of spring has the following points:      1. Device space: design a compression spring, clearly understand the space required to install the spring, and then you can master the basic manufacturing conditions, outer diameter, inner diameter and free length of a compression spring.      2. Movable stroke load: the design of compression spring to clearly understand the position to be actuated and the elastic force to be carried. Determine the position and know the required elasticity, then you can determine the material, wire diameter and number of...
carbon brush spring Product
 Пружина угольной щетки
Пружина угольной щетки
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...
 Пружина постоянного кручения
Пружина постоянного кручения
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...
 Силовая пружина
Силовая пружина
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...
 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 product development, and speed up time to market. From the initial stage of spring component design, production to final assembly, customers choose the advantages that Qianye can get. 1. Save product development time 2. Give you a variety of solutions, choose the desired optimization solution 3. The spring that best suits your product 4. Serve you for life and satisfy any technical support you have.
 Пружина переменной силы
Пружина переменной силы
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.
 Пружина постоянной силы
Пружина постоянной силы
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...
carbon brush spring News
 Design steps of constant torque spring
Design steps of constant torque spring

Time:2022-9-15

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 according to the following eight steps. 1. Select materials Most of the springs we produce are made of type 301 stainless steel. This material is readily available and predictable. Thousands of industry engineers can assist in selecting standard sizes to speed up the process. We also use high carbon steel, Inconel and Elgiloy in various designs as needed. 2. Life expectancy This is one of the most important considerations because the life of constant torque springs is very predictable. Practical is important because it is estimated that high life cycle requirements may lead to larger and more expensive designs. Of...
 How long can constant force spring be used ?
How long can constant force spring be used ?

Time:2022-9-15

Constant force spring, also known as hair spring, is made of stainless steel strip. The force added to the spring determines the diameter, force and life of the spring. The action of constant force spring is similar to that of stretching ribbon. The spring stretches and rolls back, and the working part is tangent to the spring ' s own circle. As long as the diameter of the spring is certain, the force of the spring is constant. According to the application principle of constant force spring, constant force spring can be divided into linear constant force spring and rotational constant torque spring. When linear stretching force units are : kg, Newton, pounds, etc.     Then how long can the constant force bar be used ? The life of the constant force bar is limited, and the life requirement of the spring should be considered when designing the constant force bar. This step is important because it affects the things behind the design ; improper consideration may lead the design to a wrong direction ; properly considered, the design will be easier to succeed. It is very important to determine the number of spring stretching before designing the constant force bar. Spring stretching times explanation : a refers to the spring in any part of a stretch and roll back process. Since the constant force spring provides force through the bending of the spring, any part used belongs to the spring body. In other words, a spring with a total design length of 25 ’ uses the length of...
 Advantages of Qianye carbon brush spring in motor
Advantages of Qianye carbon brush spring in motor

Время:2022-9-14

There are many kinds of carbon brush springs. Wired carbon brush springs also have steel belt carbon brush springs. The linear type is mainly compression spring and torsion spring. These springs are traditional springs. At present, the more famous motor manufacturers or electrical appliance manufacturers have begun to use steel belt carbon brush coil spring in the motor. The traditional compression spring and torsion spring are relatively backward and are generally used in low-cost carbon brush devices. The only advantage is that the price is cheap, which is several times lower than that of steel strip spring. However, the use of traditional spring in medium and high-end motors greatly reduces the product quality and competitiveness. Compared with the motor using traditional spring, the coil spring motor is completely two different concepts and quality, and the sound produced by the operation of the two motors is also different, making the service life even more incomparable. The use of carbon brush spring greatly improves the service life and stability of the motor. The traditional type of spring is not only noisy but also environmentally friendly. However, there are few domestic manufacturers that can really do a good job in carbon brush spring. Carbon brush spring needs a long time of production experience to produce high-quality carbon brush spring. Shenzhen Qianye Precision Metal Co., Ltd. has more than ten years of product R & D, production and manufacturing experience, and various application designs and solutions of spring. The advantages of carbon brush spring produced by Qianye in motor application are as follows: 1 Shorten the outer diameter of the motor...
 The power spring can realize the free lifting and lowering of the chandelier
The power spring can realize the free lifting and lowering of the chandelier

Время:2022-9-14

Chandelier is a common lighting fixture, which is widely used in offices, exhibition halls, living rooms, restaurants and other places. It is very popular because of its beauty. But now common chandeliers are generally installed with fixed hanging height. If you want to adjust the hanging height of the lamp, you can only adjust it manually. The adjustment process is complex. Therefore, a chandelier with simple structure and convenient installation that can automatically adjust the hanging wire has emerged. The chandelier that can automatically adjust the hanging wire realizes that the height can be adjusted only by lifting the lamp body up or pulling it down. When the lamp body is at the hanging height position, the hanging wire can automatically adjust the retractable length of the hanging wire through the adjuster. The hanging height of the lamp can be adjusted by adjusting the lamp body.    A chandelier that can automatically adjust the hanging wire, including the hanging wire, the hanging wire automatic adjuster, the lamp body, and the ceiling box. The lamp body includes an LED light source and a driving power supply; the automatic suspension wire adjuster is built into the ceiling plate, one end of the suspension wire is stored in the wire receiving groove of the automatic suspension wire adjuster, and the other end is removed from the ceiling box cover. The wire trough leads out through holes and is connected and fixed with the lamp body; the suspension height position of the lamp body of the chandelier is the suspension height position maintained by...
 Constant force springs applied in wall mounted accessories
Constant force springs applied in wall mounted accessories

Время:2022-9-14

As more and more people spend more and more time using computers, computer users spend more time sitting or standing at their desks or workstations in front of devices. Keeping what experts call "the best ergonomic positioning" can improve energy levels and overall comfort. For this purpose, the input and output devices must be placed in appropriate positions. The proper position can reduce the muscle strain of the user's arm and effectively prevent various musculoskeletal diseases, including carpal tunnel syndrome, neck pain, and upper and lower back pain.   The attachment bracket can be used to facilitate the support and position adjustment of the fixed attachment. The attachment retainer allows simple three-dimensional adjustment of two such devices to place the devices in a more ergonomic relative position to meet the needs of various users and workspaces, and has a balancing mechanism for balancing the weight of fixed attachments.   The balance mechanism provided by the wall mounted accessories is superior to the traditional lifting system, because the balance mechanism allows the bracket to move a larger vertical distance for vertical position adjustment. The constant force spring is used to balance the weight of the accessory, screw balance, pulley balance or other low friction devices installed on the accessory retainer by engaging with the roller assembly. The roller assembly can be raised or lowered by the user along the track with minimum force. The weight of the mounting accessories supported by the roller assembly is basically balanced by the balance mechanism. When the user moves the roller assembly vertically up or down, the constant force spring is wound or unfolded...
 How to determine the length of a constant force spring
How to determine the length of a constant force spring

Время:2022-9-14

  Constant force springs are mechanical devices used in applications that typically require some kind of balance or retraction mechanism. In design and function, constant force springs differ from the more common types of coil springs. They apply a consistent linear force or torque that remains constant over a wide range of motion. When a coil spring is under force, whether it is stretched, compressed, or rotated, it produces a force proportional to its stretch. How a spring responds when a force is applied or released is called spring deflection. Years of experience tell us what happens when a spring is released from its temporary state. We know that the spring will return to its original position, but it will be proportional to the force exerted on it before releasing. A spring has a restoring force that allows the elastic material to return to its original state - the equilibrium position after the applied force is removed. Stretching, squeezing or twisting, what makes a coil spring a spring is its proportional restoring force. It's named after the 17th-century British physicist Robert Hooke who made the discovery, according to Hooke's Law. Essentially, this law describes a linear relationship where the amount of stress applied to a spring is proportional to the force applied to it.     Determine the length of the constant force spring Constant force springs differ from traditional helical wound springs. First, they are made from high-volume, thin pre-stretched stainless steel strips that are coiled into flat spirals. In contrast, coil springs are not flat, thin steel strips, but are...
 The Key Role Of Motor Brush Spring In Wind-Turbine Design
The Key Role Of Motor Brush Spring In Wind-Turbine Design

Время:2022-9-14

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 capacity of the turbine, while higher fixtures and blades are higher in the atmosphere, increasing the power it can actually produce. These two factors are the driving forces behind the efficiency of wind turbines and their ability to create renewable energy. However, in order to achieve this goal, the manufacture of wind turbines requires the use of dozens of parts, components and materials. Motor brush or carbon brush is a small and important part of wind turbine design.  An important part of wind turbine motor brush is motor brush spring. These springs play a key role in the efficient operation of wind turbine generators and are used to push the brush towards the commutator in the motor to generate friction and transfer current between the rotating part of the machine and its power supply.     For high-performance wind turbines, the brush materials (or brush grades) and components used in the manufacturing process must be of high quality. In addition to the final details required for your application, some specifications to consider when selecting motor brush springs include:     Material: stainless steel is used in most applications. Life cycle and force: the force of the spring should be equal to...
 Qianye precision has developed an optimized power spring solution
Qianye precision has developed an optimized power spring solution

Time:2022-9-15

The power spring is formed by winding the steel belt on the mandrel to produce a compact power source, which can have mechanical functions such as driving, tensioning and loading, recovery and automatic rewinding.    Qianye Precision Co., Ltd. is one of the leading manufacturers of steel strip springs in the world. It has developed a variety of power springs for many interesting application examples. Let's give some development cases to industrial engineers for reference. The power spring can store the driving force. When it is applied to pen type drug syringes, the power spring can accurately generate the driving force matching with the sliding force of the traditional syringe needle tube, so as to completely inject drugs. When it comes to the position movement and height adjustment of machines and equipment, the most important thing is accurate positioning performance and operation convenience. Qianye precision is the power spring of the stay wire positioning encoder for position mobile applications, which has excellent precision positioning performance. The power spring has retractable function and is the best key part installed on the gravity Dissipator of the anti fall device. It is installed between the harness and the anchor point. The function of the power spring is to keep the steel cable tightened forever to avoid winding the steel cable and affecting the anti fall device, so as to ensure the safety of workers by preventing the ongoing fall. The mechanism of the automobile safety belt is also embedded with a power spring. Its application principle is the same as that of the fall protector, which can avoid the winding of the safety belt when it is...