Constant force spring reel

Применение силовой пружины в колесе здоровья брюшной полости

Время:2022-9-14

Abdominal health wheel is a small pusher that can exercise muscles, joints and reduce weight. The material is generally high-quality engineering plastic, with simple design, beautiful appearance, firmness and durability, and easy to use. It is used to exercise the fat of abdomen, waist, hip, arm and other parts of the body. Due to the simple site required for exercise, it is convenient for home use. The abdominal health wheel with power springs can make people easily complete the recovery movement under the retraction elastic force of the power springs when people use it for exercise and when the body is straightened. As we all know, the characteristic of the power springs are made of steel strip. In use, a spring box is required to limit its outer diameter. The center of the spring 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. Power springs are often used in products of automatic rewind devices.      The handle rod of the abdominal health wheel is rotationally connected with the wheel body through a bearing, and the handle rods on both sides of the wheel body are provided with power springs. The handle rod passes through the center of the power spring, the inner end of the power spring is connected with the handle rod, and the outer end of the power spring is connected with the side of the wheel body. The handle rod...

How to solve the problem of fan lifting function by dint spring

Время: 2022-9-13

We all know that gravity of the earth's center will drop rapidly to the bottom point when the object has no support, and it will be heavy when it rises. Similarly, when the fan moves up and down, it will also be affected by gravity. Therefore, we all hope that the fan will be more light when it is lifted and lowered; it can be easily moved up and down by hand to locate at will, and the fan will be more arbitrary when using it. Therefore, to achieve the purpose of light and arbitrary positioning, we must solve the problem of gravity There are several main points for the fan to rise and fall: 1. Life problems: Each kind of hair will have a certain life cycle. If you choose the general materials and immature production technology, the life of the products will be greatly reduced. The same with the elastic problem of hairpin, they are all related to materials and processing technology. In the process of using the fixed force, there will be problems of too short life,. 2. Elasticity: In the limited space, under the same size conditions, in order to make the hair to meet the strength requirements, we must strengthen it from two aspects to better play the effect. (1) Reasonable use of materials: In the process of production and design, we need to use the corresponding materials for processing and production according to the design of the spring. (2) Processing technology There are different processes for the same surface size of the fixed force...

Small spring has great effect

Time:2022-9-15

The reason why the world we live in is so orderly is that there are precise links between large and small objects. So many things in life are crucial. Whether they are large or small, they are indispensable to our life, but some small parts in life are unknown, but there are tens of thousands of them. The spring I know is also one of them. It always exists in a position that people can't see and does their own thing silently. Moreover, he exists everywhere in life, even if we don't know it. Today, I will explain the functions of these small springs. Spring is a kind of mechanical part that uses elasticity to work. Generally made of spring steel. Although the spring is small, as a general basic part, it has large quantity, wide range and complex varieties. It is used to control the movement of mechanical parts, mitigate impact or vibration, store energy, measure the size of force, etc. it is widely used in machines and instruments. The application field involves almost all fields of the national economy. Spring plays a big or small role in all articles in our life. It also has different shapes and structures because of different force values. However, according to the force value, people still divide it into three categories: constant force spring, power spring and variable force spring. Its working principle is to use one of its characteristics. It deforms it by applying force and will also try to return to its original state. Let me show you how springs...

Constant force spring in vehicle ashtray

Время:2022-9-14

If the plush toys in the car are the favorite of female car owners, it is believed that the favorite of male car owners is the vehicle ashtray. Car ashtrays are indispensable car supplies for smokers. Although the vehicle ashtray is specially designed for smokers' car owners, it can also be used to place sundries for non-smoking car owners, which is very practical. When it comes to car ashtrays, I have to mention the problem of smoking in the car. In fact, smoking in the car is more dangerous than smoking outside. After all, the space in the car is limited, and the air circulation range is small. In this case, smoking will certainly cause air pollution in the car.      However, at present, the utilization rate of ashtrays on many models is not very high. Most smokers' car owners pop ashtrays out of the window directly. The function of on-board pop-up ashtrays can greatly improve this situation. Now many cars have ashtrays designed under the central control and in the rear row to facilitate smokers in the car. In addition, some luxury cars also have ashtrays designed under the door handle. Most of the vehicle ashtray structures are in the shape of cylindrical cups, and the sealing performance is also relatively good. Generally, cigarette butts are thrown in. Basically, there is no smoke smell floating out, and the sealing is more humanized. Pop up ashtray riders may worry about whether the car will be a little bumpy, and the ashtray will pop up automatically. The ashtray will fly everywhere,...

Application products of variable force spring

Время:2022-9-14

   Variable force springs and variable torsion springs can expand negative gradients and positive gradients to form a single spring. It breaks through the influence of the traditional spring affected by Hooke's law, so that the stroke and force are no longer proportionally increased, but accompanied by various elastic force-displacement combinations, such as negative slope. Therefore, a stepped constant force can be achieved. Variable force springs and variable torsion springs can be customized for various elastic curve changes according to specific applications. What products can the curve changes of variable force springs be used for?      Pen Type Drug Syringe Application The spring exerts a constant force to keep the drug flow in place, preventing patient discomfort during use. It has a stretch at the end of the stroke to ensure that all of the medication can be fully injected.      up and down sliding door     When the door is closed, the spring force is less than the door weight; when the door is in the middle stroke, the spring force is equal to the door weight. When fully open, the force applied by the spring is greater than the weight of the door to ensure the door does not slip.      Shelf pusher      The spring outputs a variable force to match the number of displayed items. A large thrust can ensure that a large number of displayed items can be pushed smoothly, and a small thrust can effectively push small-quality items to avoid flattening of the exhibits.      Cordless curtains     Variable torque...

Constant force spring responsible for pushing nails in a nail gun

Время:2022-9-14

At present, the nail gun is frequently used in the construction industry or wood industry. The nail gun is a commonly used hand-held tool with a wide variety of types. According to the power source nail gun can be divided into pneumatic and electric two categories. When users are working, they often need to change different tools in their hands. Therefore, in order to facilitate the work, a hook is set up in the nail gun, so that users can hang the nail gun in the waist at work. When using the nail gun, you should pay attention not to face people, because the power of this product is still relatively strong and the risk is relatively high. If you are not careful, you will hurt others, and the consequences are still serious. You should also take protective measures when using it yourself. The driving device of the nail gun uses a constant force spring, because the constant force spring has the characteristic of maintaining constant force in a long stroke. In a very small device space, it can achieve a very high elastic output, which is suitable for the nail gun. It is often seen that the nail gun on the market has such a problem. The nail gun can't hit the nail because the constant force spring pushing the nail has no tension, so it can't hit the nail naturally. Therefore, in the selection of constant force spring, we should choose the spring manufacturer with qualified quality. The mechanical equipment and production process used by each spring manufacturer are different. Different equipment and production...

Application of power spring in draw-wire encoder

Время: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...

Application of carbon brush spring in wind turbine slip ring brush holder

Время:2022-9-14

In order to prevent accidents caused by excessive wear of the carbon brushes on the collector device of the slip ring brush holder of the wind turbine, a normally closed switch-type alarm unit is configured for each carbon brush, and these alarm units are connected in series to the alarm. In the prior art, the grounding brush is held on the structure using a coil spring pressure finger lever structure. In order to ensure sufficient pressure after the carbon brush is worn, the initial pressure of the spring has to be increased, which aggravates the wear of the carbon brush. However, in the later stage of carbon brush wear, the tension of the coil spring becomes insufficient again, resulting in poor contact between the carbon brush and the slip ring, frequent beating, resulting in breakage; at the same time, from the carbon brush to the alarm unit, the intermediate link is complex and easy to Lead to false alarm or no alarm, reducing the reliability of the system. In order to overcome the shortcomings of the prior art, a novel slip ring brush holder collector of wind turbine generator with simple structure, reduced wear of grounding carbon brushes and reliable operation is provided. The slip ring brush holder collector of wind turbine includes slip ring, brush holder, main carbon brush and grounding carbon brush, and the pressure end of the grounding carbon brush with alarm pressure piece is pressed by a coiled constant pressure spring. The constant pressure spring grounding brush holder structure greatly improves the force on the carbon brush during operation and...