Application case of shield tunneling machine
Publication time:2025-03-15
Customer: Wuhan Jiangzuan Engineering Drilling Tools Co., Ltd. Luoyang Jiujiu Technology Co., Ltd
Chengdu Exploration Machinery Factory Xugong Machinery
Market: Construction Machinery Application: Shield Machine Cutting Tools
Advantages of Tengyuan Bearing Company:
Unique pure steel, surface carburizing technology, and rolling track shaping process
Stable quality, with a service life of three times that of ordinary bearings
Reduce tool change rate and increase excavation time
In the shield tunneling machine industry, the name Tengyuan Bearing Company is well-known because its tapered roller bearings are widely used in the cutting tools of shield tunneling machines, playing an important role in ensuring the normal operation of shield tunneling machines.
The utilization rate of working hours (i.e. the ratio of net excavation time to total construction time) of a large shield tunneling machine facing various complex geological structures and geological formations largely depends on the controllability of the tool state. According to statistical data, the ratio of tool replacement to total working time can vary from 4% to 26%. So, to improve the utilization rate of working hours, ensure construction progress, and minimize tool replacement time is a direct way. The bearings installed on the cutting tools are one of the main factors affecting the quality and service life of the tools. High performance and long-life bearings can effectively reduce tool change rates and improve excavation time. Practice has proven that when cutting tools are equipped with TTB ® When using tapered roller bearings, their working efficiency is reliably guaranteed. Because of TTB ® The tapered roller bearings use Tengyuan Bearing Company's unique pure steel, surface carburizing technology, and raceway modification process, which have excellent quality and can withstand various harsh working conditions.
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