Mechanical design course design assignment, mechanical principles course design design purpose

The main purpose of the mechanical principles course is to provide students with a more complete curriculum after completing the basic content of classroom teaching.

Opportunities for initial practice. "Mechanical Principles Course Design".

The purpose of the compilation is to guide students to be able to apply the basic mechanical theory they have learned to a simple mechanical system in a short period of time, through the overall design of the mechanical transmission scheme, mechanism analysis and synthesis, to further consolidate and master the classroom teaching knowledge, and to obtain preliminary training in engineering design in combination with the actual situation, so as to cultivate students' comprehensive use of technical data and improve the ability of drawing and calculation. At the same time, it pays attention to the development of students' innovative consciousness. 1.

Design purpose. The Mechanical Principles course is a technical foundation course that cultivates students' ability to have mechanical theory.

The course design is the practical teaching part of the mechanical design course, and it is also my study of mechanical engineering.

For the first time, we will conduct comprehensive and independent training on mechanical design ability. In this two-week process, we have been nervous, at a loss, have joy, feel the hardships of learning, but also harvest the joy of learning, looking back, I think the purpose of the mechanical principles course design is as follows:

1) Through the practice of course design, establish correct design ideas, enhance the sense of innovation, and cultivate the ability to comprehensively use the theoretical and practical knowledge of mechanical principles courses and other prerequisite courses to analyze and solve mechanical design problems.

2) Learn the general methods of designing mechanical products and master the general rules of mechanical design.

3) By formulating the design plan, reasonably selecting the transmission mechanism, correctly calculating the working capacity of the parts, determining the size and mastering the mechanical parts, and then carrying out the structural design.

To understand and master the design process and methods of mechanical parts, mechanical transmissions or simple machinery.

4) Learn to train basic mechanical skills, such as calculation, drawing, consulting design materials and manuals, etc.

Mechanical design is an important part of mechanical engineering, the first step of mechanical production, and the most important factor in determining mechanical performance。The goal of mechanical design is to design the best machine under various limited conditions (such as materials, processing capacity, theoretical knowledge and calculation methods, etc.), that is, to make an optimal design.

Optimal design requires a combination of many requirements, generally including: best working performance, lowest manufacturing costs, minimum size and weight, maximum reliability in use, lowest consumption and least environmental pollution. These requirements are often contradictory, and their relative importance varies depending on the type of machinery and the purpose for which it is used.

Main process. 1. Formulate design tasks according to user orders, market needs and new scientific research achievements.

2. Preliminary design of the trembling bucket. It includes determining the working principle and basic structural form of the machinery, carrying out motion design, structural design and drawing preliminary general drawings and preliminary review.

3. Technical design. This includes revising the design (based on preliminary opinions), drawing up all components and new general drawings, and a second review.

4. Work drawing design. Including the final modification (according to the second instance opinion), the drawing of all working drawings (such as parts drawings, component assembly drawings and drawings and other rolling holes), the development of all technical documents (such as parts list, wearing parts list, instructions for use, etc.).

The above content refers to Encyclopedia - Mechanical Design.

This book is written in accordance with the teaching requirements of mechanical design and mechanical design basic courses in applied engineering colleges, and can be used for the study of these two courses and their course design.

The book is divided into three parts and appendices: the first part, the design guide of mechanical design course, takes the common reducer as an example, and systematically introduces the design content, steps and methods of mechanical transmission devices; The second part, Common Standards and Specifications for Mechanical Design, introduces the common standards, specifications and materials for course design. Part 3, Reference Legend; The appendix gives lesson design questions, design thinking questions and design calculation examples for teachers and students' reference.

This book can be used as a textbook for mechanical, near-mechanical and electromechanical majors in application-oriented engineering colleges, and can be used as a reference for relevant engineering and technical personnel.