Mechanical design is a common language for mechanical systems. It is necessary to be able to accurately communicate the design
intent with others through the mechanical designs. In this class, the theme is "helical gear units", and strength design as
a mechanical product is carried out, and how to apply the strength of materials, machine elements, design studies, etc. that
have been taken so far to perform actual design. Understand what is being done.
In this class, we will use our knowledge of strength of materials and mechanical engineering to perform actual component selection
while performing specific strength calculations. Students will learn how to design and draft mechanical systems that consist
of multiple parts.
- Understand the configuration and function of the helical gear units and be able to make an assembly drawing.
- Using the knowledge of strength of materials, it is possible to design the strength of gears, shafts, bearings, etc. for helical gear unit.
- Students can fully understand the function and draw drawings.
| Calculation sheet | Assembly drawing | Total. | |
|---|---|---|---|
| 1. | 60% | 60% | |
| 2. | 30% | 30% | |
| 3. | 10% | 10% | |
| Total. | 30% | 70% | - |
30% in the design calculation sheet, 60% in understanding the structure / function of the helical gear unit from the assembly
drawing, understanding the function / standard of the machine element, and 10% in understanding the drafting method and making
drawings by hand.
Pass with 60 or more. What is the passing standard of 60?
-In the helical gear unit, the necessary mechanical elements and components are not excessive or deficient, and the assembly drawing is "completed".
-Lines and symbols that clearly understand the meaning must be drawn by hand.
-From the given design conditions, the design values for calculating the strength of the gears, shafts, and bearings of the helical gear unit shall be described in the design calculation sheet.
Specific checkpoints in the design calculation sheet and assembly drawing will be explained in detail in the class.
Pass with 60 or more. What is the passing standard of 60?
-In the helical gear unit, the necessary mechanical elements and components are not excessive or deficient, and the assembly drawing is "completed".
-Lines and symbols that clearly understand the meaning must be drawn by hand.
-From the given design conditions, the design values for calculating the strength of the gears, shafts, and bearings of the helical gear unit shall be described in the design calculation sheet.
Specific checkpoints in the design calculation sheet and assembly drawing will be explained in detail in the class.
| Class schedule | HW assignments (Including preparation and review of the class.) | Amount of Time Required | |
|---|---|---|---|
| 1. | Class guidance | Review of mechanical drafting methods. | 190minutes |
| 2. | Explain the design of helical gear unit | Review of mechanical components and their mechanical drafting methods. | 190minutes |
| 3. | Design of helical gears | Review of gear functions, types, standards, and drafting methods. | 190minutes |
| 4. | Design of stepped shaft | Review of shaft functions, types, standards, and drafting methods. | 190minutes |
| 5. | Design of Bearings and Casings | Review of bearing functions, types, standards, and drafting methods. | 190minutes |
| 6. | Check and submit design calculation document | Complete the calculation document. | 190minutes |
| 7. | Making an assembly drawing 1 (Gears) | Complete the drawing of gear. | 120minutes |
| 8. | Making an assembly drawing 2 (Stepping Shafts) | Complete the drawing of stepping shafts. | 190minutes |
| 9. | Making an assembly drawing 3 (Bearings) | Complete the bearing design. | 190minutes |
| 10. | Making an assembly drawing 4 (Casing) | Complete the casing design. | 190minutes |
| 11. | Making an assembly drawing 4 (Finishing) | Complete an assembly drawing | 190minutes |
| 12. | Drawing inspection 1 | Review of sectional drawing method and drawing output method. | 190minutes |
| 13. | Drawing inspection 2 | Review of functions in CAD (Computer-Aided Design). | 190minutes |
| 14. | Explanation/preliminary submission date | Review and summarize all aspects of mechanical design calculations and mechanical drafting. | 190minutes |
| Total. | - | - | 2590minutes |
| ways of feedback | specific contents about "Other" |
|---|---|
| The Others | 設計計算書のチェックのため，計算した諸元は，チェックシートにまとめておくこと． 図面の検図のため，検図チェック項目をよく確認し，検図時間にすぐに回答できるようにしておくこと． |
Prints for each theme
・ Textbook: "Mechanical drawing for beginners 4th edition" Ikuzo Uematsu and Yoshiaki Takaya, Morikita Publishing Co., Ltd.
・ Textbook: "Mechanical drawing for beginners 4th edition" Ikuzo Uematsu and Yoshiaki Takaya, Morikita Publishing Co., Ltd.
Review mechanical drafting methods, fundamentals of mechanical components, and material mechanics.
- Questions will be accepted during the lunch break on Wednesday or after the class. If you wish to have a lunch break, please
make an appointment by email in advance.
If a student prefer the online access, please confirm the Zoom ID of this class on the Scomb.
- Course that cultivates an ability for utilizing knowledge
- Course that cultivates a basic problem-solving skills
| Work experience | Work experience and relevance to the course content if applicable |
|---|---|
| N/A | 該当しない |
- 4.QUALITY EDUCATION
- 9.INDUSTRY, INNOVATION AND INFRASTRUCTURE
- 12.RESPONSIBLE CONSUMPTION & PRODUCTION
Last modified : Sat Mar 08 04:31:47 JST 2025