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首页 » problem » 正文
Some air conditioning fan rotor faults
文章作者:Xinchang usain bolt machinery co., LTD   上传更新:2016/3/23 10:34:26

Follow the development of science and technology, exterior rotor air conditioning fan in various professional used more widely, and outside air conditioning fan rotor oscillation in the process of using the existence is inevitable, then will present a series of questions, usually has the following kinds:

 

Elements: 1, the planning of exterior rotor air-conditioning fan planning is usually based on the outer rotor air conditioning fan the use of the environment, temperature, air volume, air pressure, medium such as plan, and some companies are not completely on the basis of these for selection, never the shape

 

To exist the following elements: outer rotor air conditioning fan planning, poor dynamic characteristics, the onset of oscillation during operation; Structure is unreasonable, stress have; Planning and operation speed close to or fall into the critical speed; Calls for calculating thermal expansion amount, hot on the bad, and so on.

 

2, production elements: outer rotor air conditioning fan manufacturer the external rotor air conditioning fan request also affects the quality of the outer rotor air conditioning fan work, such as: bad parts processing production, precision; Parts material, strength not, system

 

As a defect; Rotor dynamic balancing skills do not conform to the request and so on.

 

, installation and maintenance of 3 elements: outer rotor air conditioning fan gear precision request of external rotor air conditioning fan work plays an important effect, such as gear precision device request did not arrive, external rotor air conditioning fan will play a damage effect. Outer rotor air conditioning fan device in the process, have the following factors, such as: machinery, parts and components, preload large; In shafting of bad; Machine how much parameters (such as cooperation space, interference and relative orientation) adjustment; The rotor placed wrong for a long time, change the dynamic balance accuracy; Not according to regulations maintenance, damage to the original nature of the cooperation and the machine precision and so on.

 

4, operate elements: outer rotor air conditioning fan in the process of using, external rotor air conditioning fan protection and maintenance of good or bad, external rotor air conditioning fan operation quality plays a decisive effect. Such as: technical parameters (such as medium temperature, pressure, flow rate, load, etc.) against the plan value, machine operating condition is abnormal; Under the super speed, overload the machine works, change the work characteristics of the machine; Bad lubrication may be cooling; Rotor partial damage or scale; Rev. Stop or lifting processes improper operation, uneven heat expansion or long duration stay in critical region.

 

5, machine degradation factors: usually have equipment in use must have fixed number of year, reach must be fixed number of year equipment performance will be worse. About exterior rotor for air-conditioning fan, too, such as: long time operation, the rotor deflection increases or degradation of dynamic balance; Rotor local damage, drop or crack; Parts wear, pitting corrosion or corrosion, etc.; Surface mechanical degradation of cooperation, happened surplus lack or loose, damage the cooperation nature and accuracy; Uneven foundation settlement of machine, machine shell deformation.

Some air conditioning fan rotor faults