Factory Power Spring

[Qianye precision]Physical design and recoil force of constant force spring

Heure:2022-9-15

 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.    Hooke's law does not apply to constant force springs because their recoil force remains constant over the entire range of motion. This is achieved through its unique physical design, which consists of thin and curly steel strip. The constant force spring is in a relaxed state when it is fully rolled up, and is loaded when it is partially or fully unfolded. After release, the spring rebounds by pulling the extended carbon belt back into the tight coil. Since the recoil force mainly comes from the part closest to the coiling roll, a constant force can be maintained.   Common applications of constant force...

Exposed Power Cord Solutions

Heure:2022-9-14

As people are becoming more and more picky about the beauty of home appliances, the problems of dirt, vulnerability and difficult placement caused by the exposure of power lines have been unsatisfactory. However, with the take-up device, the wires are completely stored in the internal space after use, and these problems are solved. Its core component is the use of winding up. Take-up spring refers to a kind of rotary spring that puts the steel strip crimped once or twice into the fixed box, and then connects it through the middle mandrel to tighten it to the predetermined position. After releasing the preload when necessary, it uses the rebound force of the rolled steel strip to achieve the design purpose.     The utility model has the advantages that the utility model is designed for rotary use, and can be widely used in the circular design device, and forms a coaxial design with the take-up device, which saves space very much. Under the condition of well-designed, its maximum service life can reach 300000 times.     Parameters that must be provided for the design of take-up spring:     1. Inner diameter of installation box (d)     2. Diameter of intermediate mandrel (d)     3. Torque value (T)     4. Application range (NX ~ NY)     5. Service life requirements     6. Torque calculation of products     7. Product life calculation Shenzhen Qianye Precision Metal Co., Ltd. is a leading manufacturer of take-up and spring. It is a manufacturer specializing in providing high-precision spring. It...

Constant force spring damper

Heure:2022-9-14

Dampers are widely used in building structures to dissipate energy and reduce vibration. However, the traditional damper has complex structure, poor durability and corrosion resistance, and low working stability. After using for a period of time, the damper is prone to aging and deformation can not be restored, so it can not be used anymore. Most of the existing dampers use shape memory alloy (SMA), which is a material composed of more than two kinds of metal elements through thermoelasticity, martensitic transformation and its inversion; Using shape memory alloy, the damper can automatically restore to its original shape after deformation, which is used for the restoration of building structures after deformation. However, the existing dampers only use the performance of shape memory alloy (SMA) wire itself, and the cost is expensive, which is not conducive to the large-scale use of dampers.   The design of constant force spring can be added to the self resetting damper. The damper includes piston parts, U-shaped plates and moving rods. The constant force spring is set between the tension moving rod and the pressure moving rod. The constant force spring tightens the tension moving rod and the pressure moving rod to be close to each other, so that the tension moving rod and the pressure moving rod respectively lean against the end close to each other in the corresponding sliding hole. It is conducive to the large-scale use of self resetting dampers. Constant force spring is a kind of functional material with high ductility, which has the advantages of constant load, high energy storage density, low friction loss and so on....

Qianye Precision’s design on industrial doors

Heure: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...

Analysis on the causes of carbon brush fault of generator set

Heure:2022-9-15

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 is not equal ; carbon brush quality issues, etc. Mechanical factors : commutator center is not correct, rotor imbalance ; large vibration of the unit ; insulation bulge between commutators or commutators bulge ; carbon brush contact surface grinding is not smooth, or commutator surface roughness caused by poor contact ; the commutator surface is not clean ; the air gap under each reversing pole is unequal ; spring pressure on carbon brush is uneven or unsuitable ; carbon brush in the brush grip too loose and jump, or too tight carbon brush in the brush grip stuck, etc. Reduced operating...

The Key Role Of Motor Brush Spring In Wind-Turbine Design

Heure: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...

Spring applied to the skin stapler

Heure:2022-9-14

In the process of skin incision suture in surgery, chest surgery, abdominal surgery and skin grafting in the burn department, manual suture was generally used in the past, but now skin stapler is generally used. The appearance of skin stapler can be regarded as a reform of traditional suture methods and an important reform of modern suture technology, which has given surgeons a good help. In clinical medicine, skin stapler is also listed as one of the medical products worth promoting. Compared with traditional suture surgery, the stapler can be used at a very fast speed, which can greatly reduce the operation time, easy operation and reduce the labor intensity of the medical staff, because the medical staff themselves are a busy group. The stapling eye of the skin stapler is close and orderly, painless nail removal and beautiful appearance. There are few side effects and surgical complications, so the skin stapler is very popular in the market and medical staff. The principle of skin suture device is actually very simple, it is a baffle plate and a push nail plate, nail box inside a spring. In fact, similar to stapler, each press is a suture, the molding nail out of the front gap, the rest of the nail box is pushed forward by the spring behind, you can continue the next suture, until the completion of the suture, completely loosen the handle, and then the stapler out of the skin. The spring inside the stapler is used with a constant force spring, so the constant force spring in line...

[Qianye precision]Benefits of choosing custom springs

Heure:2022-9-14

  Purchasing special components for equipment is always an obstacle for engineers designing new products. Many industries, from automotive and aerospace to medical and construction, need to customize springs for special applications. Spare springs are ideal for short turnaround times, but they are not suitable for your equipment specification. To this end, custom springs may be an important solution for industrial engineers. Learn more about some of the benefits associated with custom springs.     1、Design expertise    Using stock springs may mean that you must meet the approximate values you need. However, custom springs can be made to match the specifications required by your equipment. Custom spring manufacturing brings extensive knowledge of different types of springs to your project, including how to manufacture components to meet product requirements or specifications. When you work with spring manufacturers with design engineering expertise, your company can also reduce other costs.     2、 Flexibility   Custom spring manufacturing reduces turnaround time associated with orders and revisions. Maintain stricter control over the supply chain. If the components you ordered need to be adjusted, you can make these adjustments more directly. This gives you more flexibility to experiment with designs and adjust to product recalls or industry changes.     3、 Reduce production costs    Manufacturing partners with their own internal tool capabilities are usually able to complete large custom orders. This is due not only to their professional manufacturing technology, but also to the reduced costs associated with transporting and handling parts. You can also avoid indirect costs of labor, manufacturing equipment and raw...