It will cause abnormal vibration of the unit

Research on diagnostic methods The expert system based on artificial intelligence and artificial neural network are currently two methods for fault diagnosis of plum blossom coupling units in China, and there are many differences between the two. Abnormal vibration of steam turbine During the operation of the steam turbine, when there are phenomena such as friction vibration, rotor thermal deformation, air flow excitation, etc.

The inspection of the internal conditions of the condenser revealed that there is a relationship between the decrease in vacuum and the leakage of the low-pressure cylinder joint surface. For example, in March 2011, the condenser of Unit 2 of Nanhai Power Plant in Foshan, Guangdong had a fault with low vacuum.

When the vacuum of the condenser drops, problems such as the continuous rise of exhaust temperature and unit vibration will occur, which will affect the normal operation of the steam turbine, and its influence will be great in a high temperature environment.

No matter what Wholesale CV Joint Suppliers the instrument is, no matter how many advantages the instrument itself has, it is inevitable that large and small failures will occur during long-term work and use, and long-term failures are bound to cause great damage to the components of the instrument. run. Today, we will tell you about the common faults of the auxiliary equipment of the drum gear coupling steam turbine. 

When the rotor is thermally deformed, it will cause the double-frequency amplitude to continue to expand, and when the standby group is started up at a constant speed in cold state, it will cause abnormal vibration of the unit; when there is airflow excitation, there will be a lot of vibrations. 

What is a sprocket coupling?

Suitable for environments with high temperature, dampness and coldness and dusty load. The chain coupling is simple in structure, convenient to assemble and disassemble, and there is no need to communicate with the two shafts when disassembling.

The advantages of reliable workmanship, longer life span, and lower profit.The sprocket coupling CV Joint uses a common sprocket, together with 2 side-by-side sprockets with the same number of teeth, and a coupling with a different structure. People commonly have double-row roller chain couplings, single-row roller chain couplings, toothed chain couplings, and polyester chain couplings.

At this stage, China adopts double-row roller chain couplings as the norm. The specifications are tight, the quality is light, there is potential for compensation, and the installation precision is not high. Then do you know what advantages the sprocket coupling has? Are sprocket couplings suitable for what occasions?

What is a sprocket coupling? What are the advantages of sprocket couplings? In addition, it should be noted that the sprocket coupling is not suitable for high speed, strong impact load and transmission of radial force. Shafting gearboxes that can be used in weaving mills, agricultural machinery, lifting and transportation, construction projects, quarries, textiles, chemical industries, etc.

What is the correct operation procedure for the heat-loading treatment?

If you want to cool them, then in the process of casting with cooling water, you must ensure that the heat cannot be emitted to the outside. Even to have better insulation effect, so in this series of directions, we must get more protection. If you want to heat the diaphragm coupling, you must have related fire-fighting equipment.In the process of actual installation of the diaphragm coupling, some conditions should be paid attention to if it is to be hot-assembled.

In the actual working process of the diaphragm coupling, the biggest feature is its precision, so when they are working, especially during the entire rotation, there is no gap at all, which is very important The point, and this point is also a necessary guarantee for them in the processing process. Under this recording mode, there will be a variety of different current values. Diaphragm couplings will have very good elasticity, which means that, to some extent, they will produce various deviations during the absorption or installation process, and their series of deviations are different.

Similarly, their span should not exceed 30°C per liter, and such a span mode is relatively Said CV Joint components it is also recognized by more people. All diaphragm couplings are inspected before leaving the factory. During the process of hot-installing diaphragm couplings, if their temperature rises to 100°C, all personnel on site should pay attention to safety. It is necessary to find out the relevant number or mark , And then make relevant marks on it. In addition, for such a product, it must be assembled during actual assembly. Make a series of records for the entire temperature.

Therefore, such a choice is very important. Only by preparing and dealing with the corresponding situation can the heat-loading treatment of the diaphragm coupling be effectively completed, so what is the correct operation procedure for the heat-loading treatment?

What is the correct procedure for the hot assembly of the diaphragm coupling? In the process of hot-installation, it is necessary to ensure that they are all in pairs, and only in this way can it meet the installation mode of the entire machine. Keep a good record of the temperature, and through a variety of different methods. , To be precise, the entire deviation will bring us more protection

Bolts may break and teeth may be broken

The quality is dipped in fire, resulting in a reduction in the service life of the coupling. The internal and external teeth of the gear coupling will cause tooth wear due to long-term use, which will affect the service life of the coupling.

In the transmission of gear couplings, bolts may break and teeth may be broken; if such phenomena occur, the coupling should be disassembled immediately for analysis and inspection, and the coupling should be regularly maintained And inspection, it is also necessary to replace the bolts, which can increase the service life of the coupling.

The radius of curvature of the drum curve is proportional to the single-sided thinning of the internal teeth, that is, it is related to the meshing gap of the teeth, which causes the internal and external teeth to appear toothing, which affects the service life of the coupling.

This phenomenon will occur after long-term use of high speed and high torque. Once this phenomenon occurs, it will have a very large impact on our use, so we must find out the cause of this phenomenon What can better solve this problem? What are CV Axle the reasons for the phenomenon of gear coupling? In the use of gear couplings, there will sometimes be a big food phenomenon.

The reason for the matching of the teeth is that the coupling itself has no hardness and the gear surface is not adjusted. Another reason is that the axial deviation of the coupling installation is increased, which causes the internal and external gears of the coupling to be incompletely matched

So why does the coupling have abnormal noise?

For the poor quality diaphragm couplings produced by some informal manufacturers, it is not only very prone to noise during use. In this process, it is recommended that you must be able to choose a professional and regular team Disassemble instead of disassembling at will.

There were some errors in the installation process of the coupling If someone has some faults during installation and use, this will have some impact on the overall use function, and it is easier to have some dangerous situations, and may even cause problems with mechanical equipment, so if you want to get good use Effective, and to avoid serious noise, it is recommended that everyone should be able to pay attention to reasonable installation, but also need regular maintenance.

As a mechanical product, the coupling sometimes has abnormal noise, so why does the coupling have abnormal noise? What are the reasons? The quality of the coupling CV Joint components Suppliers is not very good This coupling can only exert a stable use effect, and can also meet the needs of various industries. , And will seriously affect its protective effect. The axial offset of the coupling is too large or too small If the axial offset angle of the coupling is very large, or the deflection angle is very small, this will cause shaking during the work, and can not achieve a good anastomosis effect, so usually very serious Sound, in view of this situation is very easy to solve, re-install and select the appropriate specifications of the coupling, so that the application effect can be good, to avoid various failure problems.

The speed code disc of the coupling is faulty If you find that the coupling has a very serious sound, you also need to consider whether the motor speed code disc is malfunctioning, so you have to disassemble it for inspection