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11
2022-07
The gearbox is a complex system comprising components such as gears, transmission shafts, bearings, and the housing structure. Among these, the housing structure plays a crucial role in providing support and ensuring proper sealing within the entire system; however, it has a relatively low failure rate. As a result, most gearbox failures actually occur in the gears, transmission shafts, and bearings. Statistics show that failures involving gear shafts and rolling bearings account for more than 90% of all gearbox malfunctions. Consequently, in gearbox fault diagnosis, the primary focus is typically on determining whether a fault exists and, if so, pinpointing its exact location. Now, let’s explore the common types of gearbox failures based on the characteristics of vibration signals!
2022-07-11
21
2022-07
Wind Turbine Gearbox Fault Diagnosis
When repairs cannot be completed at the top of the tower, it becomes necessary to descend for handling—resulting in high repair costs and extended maintenance periods. This severely disrupts the normal operation of the wind turbine. Conducting fault diagnosis on the gearbox to pinpoint the exact location and timing of the issue can significantly improve transportation efficiency and streamline troubleshooting. Common gearbox failure modes typically fall into two main categories. So, let’s now explore gearbox fault diagnosis for wind turbines together!
2022-07-21
01
2022-08
Now, let’s discuss how to properly add lubricating grease to the speed-reducing gearbox and address any noise issues. You see, the viscosity and lubrication performance of vegetable oils are sensitive to operating temperatures. Therefore, when selecting a vegetable oil for a gearbox used in a specific ambient temperature, it’s crucial to choose one that maintains the right consistency and delivers excellent lubrication effectiveness under those same temperature conditions.
2022-08-01
10
2022-08
Let’s talk about the reasons behind the unusual noises coming from the agricultural vehicle’s gearbox. This mechanism allows the vehicle to move in reverse; it also engages neutral, cutting off the power transmission so the diesel engine can start and idle smoothly—conditions that are essential for easy gear shifting or enabling power output. However, after prolonged use, it’s inevitable that some issues may arise, leading to those annoying abnormal sounds.
2022-08-10
24
2022-08
The following explains what a gearbox is and outlines its functions.
Here’s the explanation of what a gearbox is and its key functions: Therefore, if the first gear rotates clockwise, the second one must rotate counterclockwise. You can also use specially shaped transmission gears to redirect the device’s energy by changing its orientation—such as in cars, where the transfer case (the gearbox located between the rear axle in rear-wheel-drive vehicles) employs bevel gears to rotate the drive shaft’s power by 90 degrees and ultimately turn the rear tires.
2022-08-24
30
2022-08
Lubrication and Applications of Gearboxes
Common methods of gearbox lubrication include gear oil lubrication, semi-fluid grease lubrication, and solid lubricant lubrication. Gear oil lubrication is ideal for applications with excellent sealing, high speeds, and heavy loads. For scenarios with poor sealing or low-speed operation, semi-fluid grease lubrication is recommended. Meanwhile, molybdenum disulfide ultrafine powder can be used as a lubricant in oil-free or high-temperature environments.
2022-08-30
09
2022-09
Introduction and Function of Gearboxes
The load-bearing capacity of the gearbox comes from the forces exerted by the wind turbine rotor as well as the reaction forces generated during gear transmission. It must possess sufficient rigidity to withstand both forces and torques, preventing deformation and ensuring the overall quality of the system's power transmission. Additionally, the gearbox design must align with the wind turbine unit's power transmission layout, as well as the requirements for machining and assembly, facilitating easy inspection and maintenance.
2022-09-09
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