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22
2022-04
White corrosion cracks in industrial gearboxes
Industrial gearboxes are widely used in the field of industrial equipment, including some extremely harsh working conditions. The continuous advancement of industrial gearbox technology has greatly improved industrial production efficiency and reduced operating costs. However, the impact of gearbox failures remains significant—for example, complete shutdowns, production losses, revenue losses, and even contract losses.
2022-04-22
23
2022-05
Gearbox Fault Diagnosis Methods
A gearbox is a unified mechanical assembly that houses both gears and bearings. Any gearbox failure—whether caused by manufacturing defects or operational stress—deserves careful attention. Generally, the following methods are commonly used to diagnose gearbox issues.
2022-05-23
06
2022-06
Reasons for Unusual Noises in Gearboxes and How to Address Them
During the gearbox assembly process, there were instances of minor磕碰. Due to the company's shortcomings in quality control testing, such issues are rare in most gearboxes. Solution: Based on the analysis results, carefully inspect the tooth surfaces of the relevant gears for any scratches or scuffs, and thoroughly remove any oil or grease from the tooth surfaces to ensure a smooth feel during handling. The protrusions are primarily located at the tooth tips and along both sides of the tooth profiles.
2022-06-06
16
2022-06
What is a gearbox, and what does it do?
A gearbox is a mechanical device that increases or decreases torque by reducing or increasing speed. It consists of two or more gears, one of which is driven by a motor. The output speed of the gearbox is inversely proportional to the gear ratio. Gearboxes are typically preferred for constant-speed applications, such as conveyors and cranes, where they can deliver significantly higher torque.
2022-06-16
27
2022-06
The Importance of Gearbox Cleanliness
Since wind turbine rotor speeds are typically low—far below the speeds required for generators to produce electricity—they must be increased using the gear ratio provided by the gearbox’s gear pairs. That’s why the gears in a gearbox are also referred to as "speed-increasing gears." Now, let’s explore together the importance of gearbox cleanliness!
2022-06-27
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
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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