4GA2467 Spring: Critical Elastic Element for FAF28-15-1 Forced Draft Fans

Description of 4GA2467 spring

The 4GA2467 Spring is a critical elastic element specifically designed for the FAF28-15-1 forced draft fan (FD fan). It is primarily used in the variable pitch mechanism to achieve dynamic adjustment of blade angles and efficient load transfer. As one of the core components of the fan blade adjustment system, this spring plays a vital role in dampening vibrations, transmitting torque, and maintaining adjustment precision under conditions of high-speed rotation, high temperature, high pressure, and complex airflow. Its performance directly determines the operational stability and regulation reliability of the FD fan.

The 4GA2467 spring is manufactured using a precision stamping process, featuring uniform thickness distribution and smooth edge transitions, which effectively minimizes stress concentration. Its unique geometric shape design allows for controlled elastic deformation under load, ensuring both the sensitivity of blade adjustment and preventing mechanical interference caused by excessive deformation. Simultaneously, the connection points between the spring, the blade root (trunnion), and the adjusting mechanism have been optimized to ensure high efficiency in power transmission and ease of installation.

Working principle of 4GA2467 spring

In terms of working principle, the 4GA2467 spring responds to the control system's commands through its own elastic deformation. When the FD fan requires a change in blade angle, the spring deforms under the action of the drive mechanism, pushing the blade root to rotate to the target position, while simultaneously absorbing shocks and vibrations generated during the adjustment process. Throughout this operation, the spring must withstand frequent and intense mechanical stress.

HKZX-2025-10-20-A