Home > carbon brush spring
Brush spring protector
Brush spring protector
       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
 Power Spring
Power Spring
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 torsion spring
Constant torsion spring
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...
 Constant force spring
Constant force spring
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...
 Optimization design service
Optimization design service
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.
 Assembly and mounting services
Assembly and mounting services
Qianye Company not only provides the production of precision springs, but also focuses on the structural design and functional solutions of the entire spring system, and can provide a complete set of system production and assembly
 Variable force spring
Variable force spring
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.
carbon brush spring News
 Custom springs for robot design
Custom springs for robot design

Time:2022-9-14

From life-saving robotic assisted surgical platforms to automated industrial assembly to un-manned interplanetary exploration, robotics technology requires quality precision springs. Our springs and components are frequently used in the following robotics applications and devices: Linear actuation (pushing or pulling) Rotary actuation (one direction of rotation or two with return to center) Counterbalance articulated assemblies Cable assembly and hose management Propulsion Steering & suspension High energy deployment mechanisms (NASA) Clamping / retention Vibration isolation Qianye Precision offers many mechanical components that are suitable for robotics applications. Some of the most common products include constant force springs, spiral torsion springs, and spring reels. Constant force springs: Provide a smooth range of motion and a nearly constant load when extending or retracting. Can eliminate the need for costly and complicated motors, thus decreasing device size and cost. Constant torsion springs: Ideal for applications requiring less than 360 degrees of rotation. They are often used to obtain a large amount of torque through a small amount of rotation. Spring reels: Available with a wide range of forces, cable lengths, and travel, and mount easily. In addition to the products mentioned above, we also design and manufacture custom mechanical assemblies. Often, our clients have additional parts that need to be assembled with the spring. In this case, a custom mechanical assembly is ideal. Our engineering department is able to identify the need for an assembly in the design phase. From the design stage to prototype,Qianye Precision is your contract manufacturing partner for your robotic mechanical components. Our engineering team is here to help ensure your design specifications...
 Factors affecting the rupture of power springs
Factors affecting the rupture of power springs

Time:2022-9-15

The power spring is made of stainless steel strip. A spring box is required to limit its outer diameter. The spring center is connected with the shaft. When an external force is applied to make the shaft rotate relative to the spring, the spring will roll on the shaft center and store the torque. When the external force disappears, the spring will produce the torque on the shaft or spring box.     The advantage of power spring is that it can be divided into natural power spring and pre force power spring according to its relaxed shape. In contrast, the preloaded power spring can store 25% to 55% more torque and provide more effective turns. Power springs are mainly used in products such as clockwork toys, timers and automatic rewinding devices (such as power cord, dog puller, pipe winder and automobile safety belt)     It is often seen that the scroll spring purchased will break soon after it is applied to the product. Once the scroll spring breaks, its service life will end. If spring manufacturers choose general materials and immature production technology, the service life of products will be greatly reduced. There are many factors leading to its rupture, mainly including the following factors: wrong scheme design, shortcomings of raw materials, poor production and processing and so on. The quality of power spring determines the quality of products and user experience. Take the dog leasher with scroll spring as an example. With the increasing improvement of living standards, raising pets has become a fashion. In the process...
 Add constant force spring in the mechanical arm to make it more stable
Add constant force spring in the mechanical arm to make it more stable

Time:2022-9-14

Adjustable mechanical arms are commonly used in offices, laboratories, studios and other locations to support objects at various angles and heights, such as lights, computer screens, laboratory instruments, microphones, etc.   The adjustable manipulator consists of a base member and two connecting rods connected through a pivot joint, which are held in place by friction in the joint. By using spring assisted balancing devices that compensate for most of the weight, the amount of friction required to keep the equipment in place is reduced.   The pivot is a connecting ring that can rotate around an axis set at the pivot point, and a way to attach a spring to the pivot point to reduce the amount of force required. Apply to the arm to place the supported object in the desired position. The auxiliary balance device uses a constant force spring, because the constant force spring provides a smooth range of motion and a constant load in the extension or retraction direction. This can provide smooth motion and force requirements that predict the smallest detail, and the force applied by the constant force spring is more constant over the entire range of motion of the two arms of the device. If coil spring balance is used, a constant force may not be applied to the supported object at all positions of the upper arm part and the lower arm part. For example, at the far end of the range of motion, usually, the force applied to the supported object is insufficient or too large, making it difficult and troublesome to place the...
 Custom springs for medical devices
Custom springs for medical devices

Time:2022-9-14

For most of the past two decades, the medical device industry has been booming. Healthcare research has led to the rapid expansion of specific devices used to treat medical needs, from rare to common. These devices range from simple to surprisingly complex, often including automatic sensors, computer monitoring, and even remote monitoring by healthcare providers. When you are designing for a new medical device, it is essential to consider the components you must put together and the system they will create. This means breaking down your design to a level where you can visualize the components that need to go into the project. This means designing each spring assembly individually after evaluating the available options. To help you solve this problem, here are the four most commonly used springs for medical devices and their current common applications.    Constant force springs Constant force springs provide a smooth range of motion and a constant load in either extending or retracting direction. This spring design has no inertia to overcome when considering the initial position forces. Constant force springs are compact and mount easily to existing hardware. These types of springs can eliminate the need for costly and complicated motors, thus decreasing device size and cost.   Spiral torsion springs Spiral torsion springs are normally used in applications requiring less than 360 degrees of rotation. They are generally used to obtain a large amount of torque through a small amount of rotation. Spiral torsion springs allow for rotation in two directions and a “return to center” capability, like a dental X-ray head unit.   Spring reels Spring powered...
 Application of springs in industrial doors
Application of springs in industrial doors

Time:2022-9-3

  The constant force spring of the industrial door mainly plays a balancing role and reduces the burden on the motor. The force of the spring is equivalent to the force of the industrial door, which is the most ideal configuration state. If the spring force is too large or too small, it will affect the operation of the industrial door. In severe cases, safety accidents may occur and endanger others.        Constant force springs are often used to provide balance to products, so what is balance?        Constant force springs are most useful in applications that require consistent recoil. Ordinary springs behave according to a mathematical equation called Hooke's law. Hooke's law states that the force of a recoil spring in the direction of recoil is equal to the distance the spring is displaced from equilibrium. Simply put, we look at how far the spring is stretched - multiplied by a mathematical constant, the rate of the spring. The recoil direction of the spring is opposite to the stretch direction.        Hooke's Law does not affect constant force springs because their recoil remains constant throughout their range of motion. Their unique design consists of a thin, coiled steel strip that rests when fully coiled. Constant force springs are loaded when they are partially or fully deployed. When released, the spring springs back, pulling the extended ribbon back and rolling up properly. Since the recoil force is mainly obtained closest to the take-up roll, a constant force is maintained. A constant force spring can be...
 Do you really understand the variable force spring?
Do you really understand the variable force spring?

Time:2022-9-15

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 in front-facing the product, allowing shelves to look stocked at all times. These trays allow for a more organized store inventory, as well as assist in keeping track of inventory needs. Variable Force springs are designed around the weight of the products they are pushing. This means that they are always designed in a way where the product never gets slammed or compromised while being selected. These springs allow for most any product to be pushed consistently, regardless of the weight.  Allow for the product to be shopped hassle–free by the customer. Products include cosmetics, health/medicines, beverage, food and much...
 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...
 Do you know the principle of medical cart?
Do you know the principle of medical cart?

Time:2022-9-14

During the normal operation of the hospital, it is often necessary to use the medical cart. The medical cart refers to the ward protection and transfer of medical equipment. The medical cart prevents the patient from causing further injury in the process of transporting the patient. At the same time, it also reduces the labor intensity of medical staff or family members. It is a commonly used medical device. At present, the medical cart on the market can only be used in the process of lifting the patient from the hospital bed to the cart or from the cart to the hospital bed, The scope of use is narrow, which is easy to cause a waste of resources and the problem of single function. Therefore, a medical multifunctional cart is proposed to solve the above problems. The medical multifunctional cart has simple structure and convenient operation. It can be used as a medical cart under normal working conditions. Drugs for medical use can be placed in the medicine box, and medical waste generated in the medical process can be placed in the garbage box. The turnover cover plate can close the garbage box to prevent the garbage in the garbage box from shaking or overflowing due to the movement of the cart. The operator rotates the rotating rod and turns the connecting rod and pulley out of the shell, When the pulley is in contact with the ground, the operator pushes the cart, and the cart can be moved freely with the help of the pulley. When the hospital lacks...