Constant-force spring is the best spring in my country. Its quality is guaranteed and its elasticity does not decrease after a long time of use. When I bought a watch, the buyer told me that the constant-force spring is used in the movement. Spring, I was told that the constant spring is the best spring. Other springs are used inside and outside the watch. Over time, the elastic force will decrease, and the time of the watch will be inaccurate, which will cause inconvenience to your life. The constant force spring maintains its elastic force very well. Well, it won’t go down over time. The structure of the constant force spring is relatively simple, but the workmanship requirements are strict.
A constant force spring hanger used in the stepping mechanism of the vaporization and cooling device of the stepping heating furnace. The characteristic is that the constant force spring group consists of a group of tension springs and a group of compression springs. It consists of a ball bearing, a central shaft, a dust cover and a U-shaped tie rod. The upper part of the hanging plate is welded to the upper header, and the lower part of the hanging plate is equipped with a ball bearing mechanism. The ball bearing mechanism is adjusted by adjusting screws and The pull rod is connected to the upper end of the constant force spring group, and the lower end of the constant force spring group is fixed on the constant force spring support and hanger (hereinafter referred to as the constant suspension) through the pull rod, adjusting screws and is designed based on the principle of torque balance. Under the allowable load displacement, the load moment and spring moment are always balanced. For pipelines and equipment supported by constant hanging, it can provide constant support force when displacement occurs, so it will not bring additional stress to the pipeline equipment. Constant hangings are generally used in places where displacement stress needs to be reduced, such as power station boiler bodies, suspended parts of steam, water, smoke, air ducts and burners in power plants, as well as places that require such support in the petroleum and chemical industries. When the thermal displacement of a certain hanging point in the pipeline system is greater than 12mm, constant hanging should be used for support to avoid dangerous bending stress and adverse stress transfer in the pipeline system. Pipe lifting eye connections on pipes.
The spring-type constant force support and hanger is designed based on the principle of moment balance. It relies on exquisite geometric design to ensure that the load moment and spring moment are always balanced during the working process to maintain a constant supporting force, which can eliminate or reduce additional stress on the pipeline or equipment. The main and auxiliary spring type constant force support and hanger is designed based on the principle that the resultant force is constant under the simultaneous action of the main spring force and the auxiliary spring force.
1. Manufacturing technical requirements
1. Products should be manufactured according to approved drawings and technology according to prescribed procedures.
2. The material grade used in the product should comply with the drawing requirements, the material should comply with the national standards, and there should be a warranty.
3. The limit deviation of spring stiffness should be ±10.
4. In the free state, the verticality of the spring axis line to the two end surfaces does not exceed 2.5 of the free height.
5. The limit deviation of the free height of the spring is ±2 of the free height.
6. The hardness value of parts that require heat treatment should comply with the drawing requirements.
7. The product should be locked in the displacement direction required by the order before leaving the factory.
8. Welding and welding seams should comply with drawings and technical documents.
9. The surface of the weld shall be free of cracks, slag inclusions, pores, arc craters and undercuts exceeding 0.5mm deep.
Constant force springs can be seen everywhere in our lives, as long as we keep an eye on them. When I was a kid, I picked up the spring on the clock and played with it. I just knew it was fun. As soon as I stretched it out, I came back. I don’t know why, I just thought it was fun. Now I know that it is a spring, and I know that it is a constant force spring. If your watch is not accurate and is often either too slow or too fast, it means it is not a constant force spring. You should replace it with a constant force spring so you don't have to worry about inaccurate timing.