How to improve the performance of gearbox tilting pad bearings through precise positioning and adjustment? ​

Update:26-06-2025
Summary:


1. Support structure components: Laying the foundation for bearing operation ​
The support structure components are the basic framework for the stable operation of Gearbox Tilting Pad Bearings, and their installation accuracy determines the overall performance of the bearing. When installing the processed support structure components to the corresponding positions of the gearbox, high-precision positioning pins and bolts are key tools to ensure position accuracy. With their unique shape and size, the positioning pins can quickly and accurately determine the installation orientation of the support structure components, restrict the movement and rotation of the components in the plane, just like building a stable "coordinate" for the components. The bolts firmly fix the support structure components on the gearbox by applying appropriate tightening force to ensure that they will not be displaced by external forces such as vibration and impact during the operation of the equipment. ​
During the installation process, the surface cleanliness and mating surface accuracy of the support structure components are extremely high. Any slight impurities or unevenness may cause deviations in the installation of the components, affecting the subsequent installation of the pads and the overall performance of the bearings. Only by ensuring the absolute accuracy of the installation position of the support structure components can a stable and reliable foundation be provided for the installation and operation of the pads.​
II. Installation and adjustment of pads: Precision control of core components​
As the core component of the tilting pad bearing to realize the load-bearing and lubrication functions, the installation and adjustment process of the pad is full of technical challenges. Installing the pad on the pivot seems to be a simple operation, but it actually requires precise control of every detail. The angle and gap of the pad are directly related to the bearing capacity, lubrication effect and running stability of the bearing. Improper angles will cause uneven force on the pad and accelerate wear; too large or too small a gap will affect the formation and stability of the oil film, and thus affect the performance of the bearing. ​
In order to accurately adjust the angle and gap of the pad, professional measuring tools play an irreplaceable role. The feeler gauge can accurately measure the tiny gap between the pad and the journal, helping technicians determine whether the gap meets the design requirements. The dial indicator can be used to measure the position deviation and swing of the pad, providing accurate data support for angle adjustment. By adjusting the thickness of the gasket, the position of the pivot, etc., the technicians continuously optimize the angle and gap of the pad to achieve the best state. This process requires technicians to have rich experience and superb skills, repeatedly measure and adjust, to ensure that each pad can work in the best posture.​
III. Load distribution of multiple pads: performance optimization of collaborative work
For tilting pad bearings with multiple pads, ensuring uniform load distribution between each pad is the key to exerting the performance advantages of the bearing. Uneven load distribution will cause some pads to bear excessive pressure, accelerate their wear and fatigue damage, and also affect the stability and service life of the bearing. In order to achieve uniform load distribution, technicians need to comprehensively consider factors such as the installation angle, clearance of the pads and the overall structure of the bearing during the installation process. Through precise adjustment and repeated testing of each pad, each pad can work together when bearing load and share the pressure together, thereby improving the overall load-bearing capacity and operating stability of the bearing. ​
IV. Far-reaching impact of assembly accuracy: performance and life guarantee
Precise positioning and adjustment not only affect the initial performance of the tilting pad bearing, but also have a profound impact on its long-term reliability and stability. Accurate assembly can ensure that the bearing maintains a good lubrication state during operation and reduce friction and wear. Uniform load distribution and reasonable clearance between bearings enable a stable fluid dynamic oil film to be formed between the journal and the bearing, converting solid friction into viscous friction inside the liquid, greatly reducing the friction coefficient. This not only reduces energy loss and improves the transmission efficiency of the gearbox, but also extends the service life of the bearing and reduces the maintenance cost of the equipment. ​
On the contrary, if there is a deviation in positioning and adjustment during the assembly process, it may cause the bearing to experience problems such as increased vibration and increased noise at the beginning of operation. As the operating time increases, these problems will gradually worsen, causing faults such as bearing wear and oil film rupture. In severe cases, it may even cause bearing failure, affecting the normal operation of the entire equipment.