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The first large diameter shield machine main bearing in China is off-line in Luoyang

2019-01-15

Yesterday, the first domestic shield machine main bearing with diameter of 11 meters was offline in Luoyang, which is the largest size bearing used in the field of shield machine in China. The off-line bearing marks a breakthrough in the key technology bottleneck of shield machine development in China, which is of great significance for the realization of full localization of shield machine.


As a complete set of tunnel construction equipment, shield machine is widely used in metro, railway, highway, municipal, hydropower and other tunnel projects. It is one of the major weights to measure a country's industrial manufacturing level. The main bearing is called the "heart" of the shield machine, which bears the main load during the operation of the shield machine and is the key component of the cutter head drive system.

After the main bearing goes off line, it will be applied to the first domestic remanufactured large-diameter slurry shield machine, which undertakes the tunneling task in a submarine tunnel project. Next, LYC will study the intellectualization of main bearings of shield machine and the super-large size of main bearings. Meanwhile, they will continue to pay attention to the use of equipment and strive to make the shield machine, a major heavy vehicle, fully realize "made in China" as soon as possible.


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