Which of you is most satisfied with the way the power engine axes are worn out
Keywords: electric motor axis wear and tear, online repair, carbon nanopolymers material
The main axis of a 750 kw power drive in a chemical industry has been subject to wear and tear, which has been detected at a depth of 0. 4 mm-1 mm. The motor was converted at 990 r/min and 160 mm axle diameter, with a nu series bearing。
For vulnerable items such as electrical motor axes, maintenance is generally relatively simple, can be completed by direct replacement, and the process of dismantling is simple, with short overhaul cycles or even online repair, and traditional overhaul methods can effectively solve the problem. However, traditional processes, which are relatively difficult to resolve with respect to the wear and tear of the main axis, which is essential in electrically motivated equipment, often require a large amount of dismantling, investment in manpower, material resources and production time, which can have a serious impact on the normal production of enterprises。
I. Traditional restoration processes
(i) electrical brush plating restoration process
The advantage of the process is that online repair can be achieved, but the disadvantage is also clear. The coating coatings formed by the electro-brush plating process are more limited by wear and are usually less than 0. 2 mm thick. When the amount of wear and tear is greater than 0. 2 mm, its plating efficiency decreases exponentially, and when the plating is too thick, the plating is easily released during use, resulting in a shorter useful life. For wear depths of 2-3 mm, the electro-painting process simply does not allow for online plating。
(ii) welder processor restoration
Remediation of welders is the most common of the traditional restoration processes and is characterized by high restoration accuracy. However, the process also has significant disadvantages: the restoration of small axes is prone to stress concentration and even to the distortion of axes; while the restoration of large axes such as 750 kw main motor axis cannot be repaired online, the dismantling and transport process will significantly increase the repair costs and extend the recovery cycle, while the requirements for machine processing equipment are extremely high and the overall cost is low, which will seriously affect the normal production of the enterprise and increase maintenance costs. In addition, welding does not avoid thermal stress, which may lead to the risk of cracking and even cracking in the use of axes, which significantly increases the safety of production. Due to the large volume of 750 kw electric motors and the difficulty of dismantling and transport, this restoration process is not used by businesses in general。
(iii) replacement of new components
In the case of wear and tear on the main motor axis, the replacement of new components is not only costly, but the combined cost of dismantling and transportation makes it difficult for the enterprise to bear, and is therefore not generally used。
Ii. Sore colonum number positive technology
Solar carbon nanopolymers material technology is the online repair of wear and tear problems in large axes such as electric motors through the mechanical performance specific to carbon nanopolymers materials and targeted restoration processes。
The repair process for this technology is simple: on-site repairs are performed using the assembly restoration process based on the unpaved face. The advantages are significant, with good viscosity, stress resistance, wear resistance, combined mechanics such as metal elastic deformation, which can be repaired online, which is highly efficient and does not require substantial dismantling of the equipment, which can normally be completed within four hours。
By comparing traditional maintenance methods with new material technologies, the enterprise eventually chose the sore carbon nanopolymer material technology to repair the electrical motor axis wear and tear. The technology has the advantage of repairing power-driven axle wear and tear relative to traditional maintenance methods, which are efficient, achieve online repair and provide a strong solution for the maintenance of the equipment of the enterprise and significantly reduce the cost of production。
The following is the on-site maintenance of the motor axis wear and tear process using this technology:
