Project Context项目背景 / 03
7.9 m Girth Gear7.9 m 大齿圈
Adapting the customer drawings for a 7.9 m girth gear into production documentation for manufacturing in China. The 3D model provides a spatial reference for the complete ring, two-piece split construction and mounting geometry described in the source drawings.将客户提供的 7.9 m 大齿圈原图转换为适用于国内制造的生产文件。三维模型为空间理解整圈、两片剖分结构和安装几何提供参照。
One quarter of the ring in face view: the toothed outer rim, the web with lightening openings and stiffening ribs, and the inner rim. The teeth are drawn in simplified form, so this view does not define the tooth geometry.齿圈四分之一端面视图：外缘轮齿、带减重孔与加强筋的腹板以及内缘。轮齿为简化画法，本图不定义齿形参数。
Working from the customer’s drawings, I built the 3D CAD model and prepared the production drawings for manufacturing in China.我以客户图纸为依据，完成了三维 CAD 模型，并编制了用于国内制造的生产图纸。
Drawings and models from company and client projects are processed versions, adapted to protect confidentiality. Academic design materials are my own original work. Conceptual models and simulations are preliminary studies, not validated results.公司与客户项目的图纸和模型均为经过处理的版本，以保护保密信息；学术设计资料为本人原创；概念模型与仿真为初步研究，并非经验证的结果。
Customer and Chinese gear standards differ国内外齿轮参数标准不同
The customer’s drawings use gear units and standards that differ from Chinese national standards, yet the production drawings had to define exactly the same gear, including its split construction and mounting.客户原图纸齿轮参数单位与标准与中国国内标准不一致，需要准确表达客户原图定义的同一齿圈，包括剖分结构和安装关系。
Technical Evidence / Assembly model技术证据 / 装配模型
Inspect the complete ring, two-piece split and mounting geometry modeled from the customer drawings.可观察依据客户图纸建立的整圈、两片剖分结构与安装几何。
Drag to rotate拖动旋转
Technical Evidence / Geometry技术证据 / 几何
Confirmed gear geometry已确认的齿轮几何
- Outside diameter外径
- 7,983 mm7,983 mm
- Teeth齿数
- 282282
- Normal module法向模数
- Mn 28Mn 28
- Normal pressure angle法向压力角
- 25°25°
- Construction结构
- Two-piece split两片剖分
Design Approach设计方法
From source geometry to manufacturing definition从原图几何到制造定义
Drawing parameter check图纸参数核对
Checked the gear parameters against the customer drawings and confirmed how the ring is mounted.以客户图纸为依据，核对齿轮参数是否正确，同时确认齿圈安装方式。
3D CAD modeling三维 CAD 建模
Built the complete ring and its two-piece split construction in 3D CAD from the source drawings.依据原图建立整圈及两片剖分结构的三维 CAD 几何。
Production documentation生产技术文件
Prepared production drawings for manufacturing in China, carrying the source definition into the production documents.绘制适用于国内制造的生产工程图纸，将原图定义落实到生产文件中。
Keep source drawings, CAD and production drawings connected对应原图、CAD 与生产图纸
- Customer drawings客户图纸
- 3D CAD model三维 CAD 模型
- Production drawings for China国内生产图纸
- Documentation delivered图纸文件已交付
The source drawing, model and production drawing describe the same girth gear. The model provides a spatial view of the split construction and mounting geometry, while the production drawings carry the manufacturing definition.客户原图、三维模型和生产图纸对应同一台大齿圈。模型提供剖分结构和安装几何的空间视图，生产图纸承载制造定义。
Production drawings delivered生产图纸已交付
Production drawings for manufacturing in China have been delivered.适用于国内制造的生产工程图纸已经交付。