Building on the previously outlined installation process, damage to torsion springs can be prevented by adhering to standardized procedures throughout the entire workflow. Key points include:
Mitigating Damage Risks Before Installation
- Compliance Verification: Confirm that the spring model and material meet design specifications; discard any defective units showing surface cracks, corrosion, or deformation.
- Fitment Check: Verify the installation shaft dimensions; select a mandrel with a diameter 90%–95% of the spring's inner diameter to prevent the spring from binding or wearing against the shaft after twisting.
- Tool Preparation: Use appropriate soft-faced tooling; strictly prohibit striking the spring surface directly with sharp tools.
Standardized Operation During Installation
- Coaxial Alignment: Ensure the spring's axis perfectly aligns with the equipment's axis of rotation to eliminate misalignment-induced lateral forces.
- Winding Direction Matching: Match the spring's winding direction to the operational direction of the torque to avoid stress overload caused by reverse twisting.
- Torque Control: Twist strictly according to the design angle; do not exceed the travel limit to prevent surpassing the material's elastic limit.
- Careful Handling: Do not throw or drop the spring; avoid impacts that could cause localized deformation or damage.
Post-Installation Verification and Protection
- Interference Check: Ensure there is no friction or binding between the spring and surrounding components to prevent continuous wear on the spring body during operation.
- Preload Calibration: Adjust the preload to the design range; avoid excessive or insufficient force that could damage the spring.
- Regular Inspection: Focus on inspecting stress concentration areas, such as the base of the torsion arm, and replace the spring promptly if any abnormalities are detected.