Плоска спирална пружина

Видове пружини в медицински изделия

Час: 2022-9-14

Springs are integral components in the manufacture of many medical devices. Whether it’s for a surgical stapler or a medical monitor, the types of springs in medical devices are defined by a specific action or movement required for the application. Though relatively simple in its design, springs store the mechanical energy necessary for a wide range of medical devices, machinery, and equipment to function properly. Any type of surgical instrument, medical equipment or device that has a mechanism undoubtedly has a spring component. Spring material must be medical grade, and the design and function of any device must adhere to stringent regulatory requirements and guidelines as defined by the FDA. Booms, table and bed lifts, fluid control devices, wheelchairs, medical testing and monitoring equipment either fixed or mobile, MRI and X-ray machinery, dental x-ray with articulated arms, medical equipment drawer closing mechanisms, anesthetic infusion devices, sterilization valves, various implants, and shunt valves are all examples of medical devices that require springs to function. Manufacturers of medical devices and devices subsequently relied heavily on springs in a variety of applications. The medical industry relies on the same types of springs that most industries rely on—constant force springs, constant torsion springs, power springs. Constant force spring Constant force springs are coiled with stainless steel tape so that when coiled relative to being stretched, the spring relaxes in a low stress state. When it is unrolled, the restoring force comes mainly from the portion close to the unwinding spring coil. The resultant force is almost constant. The actuators that operate in the surgical...

Знаете ли принципа на медицинската количка?

Час: 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...

The power spring makes the tape measure shrink freely

Час: 2022-9-14

Tape measure, I believe everyone is familiar with it. Tape measure is a common measuring tool in our daily life and work. After the tape measure is pulled out, it can be rolled up because there is a power spring in the tape measure. When pulling out to measure the length, it actually lengthens the length of the scale and spring. Once the measurement is completed, the spring in the tape measure will automatically shrink, and the tape will also shrink under the action of spring force, so the tape measure will roll up. The power spring is an elastic fitting in the tape measure. The end of the steel bar scale is connected to the front end of the spring, and the end of the spring is fixed in the middle of the tape measure. The tape measure mainly uses the energy storage characteristics of the spring, which can be said to be the conservation of mechanical energy .When you pull the tape measure, you work on the internal spring, and the energy is stored by the power spring; when you release it, the spring relaxes, releasing energy and causing the tape measure to retract automatic contraction uses the lever torque principle: in the stretching state, the force arm is the smallest and the spring output is the largest; in the retracted state, the force arm is the largest and the spring output is the smallest.         When the scale is pulled out, the spring is tightened to produce a force to roll back. When the tension of the scale is released,...

Анализ на причините за повреда на въглеродните четки на генераторния комплект

Час: 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...

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

Час: 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...

Do you know what springs are used as stop mechanisms?

Час: 2022-9-14

We often find that the spring we make is wrongly used as a stop mechanism in the design. This design defect can occur in all types of springs, including constant force spring, constant torque spring and power spring. For example, consider a simple cable extension product in which the spring retracts the cable into the housing. If the spring is completely wound before the cable is fully deployed, the spring will be used as a stop mechanism. This action will damage the function of the spring and components and should be avoided at all costs. Here are some useful tips when considering the stop mechanism. Constant Force Spring Application:  Initial designs often show the inner end of a Constant Force Spring attached to its’ spool. This is not necessary.  If the spool is larger than the natural spring diameter, the spring will automatically fit tightly on the spool.  In the case when a screw is attached to the spool, additional concerns arise.  If the spring is pulled tight on the screw,  a hump will result that will not only make the retraction difficult but will cause a fracture point and reduce life cycles. To avoid this, we recommend that the spool maintain 1-1/2 wraps of spring material at the furthest extension.  If these additional wraps are not practical in the design, another method of stopping the rotation is required. Constant Torque Spring Applications:   This type of motor spring is commonly used to retract a cable or to keep a constant torque rotational force on a spool.  It is extremely important not...

Application of constant force spring in refrigerator door

Час: 2022-9-14

In order to make the refrigerator operate effectively, the door should be kept closed. Keep the door open for a short time when putting or taking out food. However, opening it for a long time will affect its cooling and endanger food safety. It will also lead to excess power consumption. Fortunately, the modern refrigerator door can be added with a constant force spring to automatically close after you open the refrigerator for use. Nowadays, this kind of design is relatively rare in the market. It is generally a magnetic refrigerator door, which explains why the magnet is attached to it.   We have seen that it is essential to keep the refrigerator door closed all the time. If the door remains open for a long time, it will counteract the internal temperature balance and affect the quality of the food stored in it.When this situation continues for a long time, the compressor cannot maintain a low internal temperature. This undermines its operational efficiency. In addition, the longer the door is opened, the hotter the inside of the refrigerator will become.   Because it is very important to keep the door closed, a constant force spring is added to the refrigerator door. If you open them, they will close automatically.A constant force spring is added, which pulls the door back and seals it tightly to the frame when the door is opened. Constant force springs are often the best spring type for this application and can be manipulated in a number of ways to ensure your design works. Constant force springs are characterized by a...

Пружината с постоянен въртящ момент може да играе толкова голяма роля в устройството за поемане

Час: 2022-9-14

Пружините с постоянен въртящ момент могат да помогнат за поемане на жицата и се използват в много продукти. Всички електрически продукти имат комплект кабели, който е свързан към захранването, но този захранващ кабел ще донесе някои проблеми на нашето споразумение. Функцията на пружината с постоянен въртящ момент е следната, тя може да доведе до свободен процес на свиване на комплекта електрически кабели, което улеснява поемането на линията, много практично. Когато външната сила обърне пружината с постоянен въртящ момент от естественото състояние към изходното колело, след като външната сила бъде премахната, пружината с постоянен въртящ момент ще се върне обратно към естественото състояние и в изходното колело ще се генерира постоянен въртящ момент по същото време. Пружината с постоянен въртящ момент може да се използва при автоматично навиване, балансирано тегло и източник на енергия, като автоматично устройство за навиване на електропровод. Предимства на пружината с постоянен въртящ момент пред силовата пружина: 1. Въртящият момент няма да се промени с увеличаване на броя на завъртанията. 2. Няма ограничение за броя на наличните завъртания и дизайнът на множество завои най-вече приема пружина с постоянен въртящ момент. 3. Броят на невалидните завои е по-малък, може да се съхранява повече енергия и ефективността е по-висока. Много устройства за поемане на пазара са предразположени към разместване или блокиране по време на поемане поради неправилен избор на пружина, което води до объркване и ниска ефективност на поемане. Shenzhen Qianye Precision Metal Co., Ltd. е специализирана в производството на пружини повече от 20 години. Инженерите на Qianye за прецизни пружини могат да ви помогнат да подобрите и подобрите продуктите си. Свържете се с нас на всеки етап от вашия проект за експертна помощ и техническа...