Of course, the screw of the coupling needs to be repaired. The screw of the product must be repaired in time. If it is not repaired, it will affect the transmission efficiency, and it will cause the screw to break and the screw to fall. Then the coupling will be damaged. The device causes damage, and serious cases may cause irreparable injury. The service life of the coupling mainly depends on the quality of the product, but also depends on the specific conditions of use. Under normal circumstances, the use of the coupling is very long. It is the use of the elastic element or the coupling accessories that determines its life.
Coupling is a mechanical part used to connect two shafts in different mechanisms and make them rotate together to transmit torque. In high-speed and heavy-duty power transmission, some couplings also have the function of buffering, damping and improving the dynamic performance of the shafting. The coupling is composed of two halves, which are respectively connected with the driving shaft and the driven shaft. The general power machine is mostly connected with the working machine by means of a coupling. When choosing a coupling, you should first select the appropriate type according to the work requirements, and then calculate the torque and speed according to the diameter of the shaft, and then find out the applicable model. There are many types of couplings, which are divided into fixed couplings and movable couplings according to the relative position and position changes of the two connected shafts.
The fixed coupling is mainly used where the two shafts require strict alignment and no relative displacement occurs during work. The structure is generally simple, easy to manufacture, and the instantaneous speed of the two shafts is the same. There are mainly flange couplings and sleeves. Couplings, clamp couplings, etc. The movable coupling is mainly used where the two shafts are deviated or there is relative displacement during work. According to the method of compensating the displacement, it can be divided into rigid movable coupling and elastic movable coupling. Rigid movable couplings use the dynamic connection between the working parts of the coupling to have a certain direction or several directions to compensate.
The coupling uses the elastic deformation of the elastic element to compensate for the deflection and displacement of the two shafts. At the same time, the elastic element also has cushioning and damping properties, such as serpentine spring couplings, radial multilayer leaf spring couplings, elastic rings Pin couplings, nylon pin couplings, rubber sleeve couplings, etc. Some couplings have been standardized. Couplings can reduce the plasticity and toughness of steel, make the machining dimensions unstable, and the tools wear quickly. The successive changes in the metallographic structure caused by heating also cause stress, which is called organizational stress. Overheating is not conducive to heat treatment, making steel brittle and reducing mechanical properties, but it can be eliminated by normalizing or annealing after forging.
