Eccentric Shaft for Shield Machine

The Eccentric Shaft for Shield Machineused in the shield machine is mainly used for the drive mode of the cutterhead. The cutterhead of the eccentric multi-axis shield machine is installed eccentrically through the front end of several drive shafts, and rotates with the drive shafts, so that the cutterhead moves in a parallel ring to excavate the stratum. This design enables the cutterhead to cut a cross-sectional shape similar to the cutterhead shape, which is suitable for tunneling of various shapes, such as rectangular, circular or horseshoe.

1. The Eccentric Shaft for Shield Machineused in the shield machine has an eccentric characteristic. The center line of the shaft does not coincide with the center line of rotation. The eccentricity is precisely set according to the drive requirements of the shield machine cutter head, generally ranging from a few millimeters to tens of millimeters, so as to achieve a special motion trajectory.

2. The Eccentric Shaft for Shield Machineused in the shield machine is designed with keyways, splines and other connection structures. The keyway processing accuracy is extremely high and the tolerance is controlled within an extremely small range, ensuring close cooperation with the cutter head, gears and other transmission components to ensure efficient excavation of the shield machine.

3. The Eccentric Shaft for Shield Machineof the shield machine is made of high - strength alloy steel, with chromium and molybdenum enhancing properties. After heat treatment, its structure is optimized to improve hardness, wear and fatigue resistance for high - load impacts.

4. The surface of the Eccentric Shaft for Shield Machineof the shield machine is often hard - chrome - plated to enhance corrosion resistance for the underground environment. Some high - end products use ceramic coatings to significantly improve durability.

5. Due to the eccentric structure, dynamic balance of the shield machine's Eccentric Shaft for Shield Machineis crucial. After calibration by professional equipment, the unbalance is strictly controlled to ensure high - speed stability and reduce noise and vibration impact.

During shield machine tunneling, the Eccentric Shaft for Shield Machineis vital. Facing complex strata, it enables the cutterhead to cut diversely with its eccentric structure and offset. High - precision keyways stably transfer force, helping the cutterhead break ground. When crossing riverbeds, its material and protection resist scouring, ensuring accurate tunneling.