Journal Wear and Roundness Difference of The Generator Set

Generator sets are very common in our daily lives, and they may experience wear and failure during use. In the following text, Dingbo Power Generation Equipment will briefly introduce how to solve the problem of journal wear and poor roundness in generator sets?

Repair of wear and tear marks on the generator set journal

If the roundness and cylindricity of each journal of the crankshaft do not exceed the specified limits, but there are only slight scratches, grooves, roughness, marks, and burns, a long strip of fine sandcloth with the same width as the journal can be wrapped around the journal, and then hemp rope or cloth strip can be used to wrap two or three circles on the sandcloth. Pull both ends of the rope back and forth by hand for polishing, or use a special polishing fixture for polishing, as shown in the following figure.

After the scratches on the generator set journal are removed, in order to reduce the surface roughness of the journal, the abrasive on the journal and grinding clamp can be cleaned, coated with a layer of lubricating oil, and finally polished.

Repair of generator set journal roundness and cylindricity exceeding tolerance

When the roundness and cylindricity of the crankshaft journal and connecting rod journal exceed 0.025mm or 0.04mm, they need to be ground and trimmed according to the next level of repair size, or subjected to vibration welding, chrome plating, and then ground to the specified size.

The grinding of the generator set crankshaft is generally carried out on a dedicated crankshaft grinder or equipment modified from an ordinary lathe. In general small repair units, some use a fine file to carefully round the shaft neck, carefully inspect it, repeat it, and then use a rope or grinding clip to polish it according to the above method, as shown in the above figure. Using this method of repair requires skilled fitter skills to ensure a certain level of repair quality. General repair personnel cannot follow suit.

Guangxi Dingbo Generator Set Manufacturing Co.,Ltd was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. The company has a registered capital of 218.88 million yuan. The company covers an area of 86,000 square meters and a building area of 55,000 square meters. There are more than 660 employees, including 456 professional technicians and 106 senior technicians. It has 46 sales and service outlets nationwide. The main products are diesel engines, generator sets, and diesel generators, providing users with a one-stop service of design, supply, debugging and maintenance at any time. Dingbo has always insisted on using first-class talents, building first-class enterprises, manufacturing first-class products, creating first-class services, and making every effort to build a first-class domestic enterprise. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to sales@dieselgeneratortech.com.