Weld repair of gear teeth
Develop repair procedures and quality checks for suitable yaw and pitch gear-ring damage.
DASHENG TECHNOLOGY
Specialist Repairs
Specialist Repairs: Processes, Solutions & Tooling
Customized repair solutions
Develop site-specific repair solutions for yaw systems, main-shaft components, pitch bearings and related systems.
Large-scale tooling development
Develop tooling for tasks such as single-blade replacement, matched to turbine, load and site conditions.
Assess repairability against damage, material and site conditions; define procedures and acceptance per project.
Case and application
Weld Repair: Yaw & Pitch Gear Teeth
Damage and repairability
Assess cracks, broken teeth, lubrication and uneven loading; confirm the substrate and repairable area.
Materials and repair process
Use high-strength base repair and wear-resistant surface cladding, followed by tooth-profile machining.
Quality checks and handover
Check tooth geometry, surface quality and hardness against the procedure; verify meshing and plan follow-up.
Select materials and procedures for the substrate and damage; individual test values are not universal guarantees.
Case and application
Customized Repair Solutions
Yaw systems
Tailor repair and machining to gear rings, drive mounting surfaces, gear meshing and component fits.
Main shafts and pitch bearings
Use damage findings, lubrication and access conditions to define the repair route and tooling.
System-level repairs
Investigate mechanical, electrical and control issues; coordinate testing and post-repair checks.
Tailor work to turbine design, damage, site constraints and downtime windows; local repairs do not establish full turbine recovery.
Case and application
Large-scale Tooling: Single-blade Replacement
Task and constraints
Assess lifting paths, interfaces, loads and working space for single-blade replacement.
Joint development
Develop suitable tooling with engineering partners; source material records an initial trial.
Engineering purpose
Adapt lifting and blade positioning to site conditions
Review lifting plans for turbine type, site and wind conditions; estimate time and cost per project
Case and application
Repair Processes & Purpose-Built Tooling
Gear-ring repair development
Develop material repair, surface cladding and profile-machining processes based on tooth damage assessment, with quality checks
Yaw brake-disc repair tooling
Develop in-situ milling tools for scoring and pitting; assess suitability against remaining thickness and damage
Yaw-drive mounting repair
Develop face and bore repair tools for distorted mounting interfaces; verify geometry, meshing and installation
Development considers access, machining datums and outage windows; process parameters and acceptance are equipment-specific.
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zhuo.wu@ds-techcn.com+86 152 3118 3837Beijing headquarters