This Examination Thesis was done at the Blekinge Institute of Technology of Karlskrona. The work is a part of the education to Bachelor of Science in product development.The task consists of changing the steering wheel transmission of the DYNAPAC CA soil compactor machine made by Svedala Compaction Equipment AB.During the work we have followed the Fredy Olsson product development method. The work is divided in two parts: The Concept phase and The Primary Construction phase.In the Concept phase we first defined the project. After that we did investigations to find different solutions, which were electronic solution, hydraulic solution, gears and shafts, synchronous belts, single wire and double wires…
Contents
1. INTRODUCTION
1.1 The project
1.2 Presentation of the group members
1.3 Presentation of universities
1.3.1 Blekinge Institute of Technology
1.3.2 E.I.G.S.I: An French Engineering school
1.3.3 The University of the Basque Country
1.4 Presentation of the company
1.4.1 SVEDALA and the environment
2. DEFINITION OF THE PROJECT
2.1 Product
2.2 Process
2.3 Environment and surroundings
2.4 Human
2.5 Economy
3. RESEARCH OF THE PRODUCT
4. CRITERION DISPOSITION
4.1 Function
4.2 Operation criterion
4.3 Personal safety
4.4 Ergonomics
4.5 Technical service
4.6 Environment
4.6.1 Manufacturing
4.6.2 Operation
4.6.3 Elimination
4.7 Economy
4.7.1 Manufacturing
4.7.2Usage
4.7.3 Elimination
5. DESCRIPTION OF THE SOLUTIONS
5.1 Electronic solution
5.2 Hydraulic solution
5.3 Gears and Shafts
5.4 Synchronous belts
5.5 Single Wire
5.6 Double Wires
6. PRIMARY EVALUATION OF PRODUCT SOLUTIONS
PART 2: THE PRIMARY CONSTRUCTION
7. INTRODUCTION
8. TABLE OF THE DIFFERENT COMPONENTS/DETAILS AND TYPE OF PRODUCT 62
9. PRODUCT STRUCTURES
10. CHOICE OF COMPONENTS
10.1 Poor drawing information
10.2 Demands of the components
10.3 The synchronous belt
10.4 Calculation of the moment and forces
10.5 Selection of the best belt for our needs
10.5.1 Criterions for the belts
10.6 Oil resistance test
10.7 The Gates Poly Chain GT2 synchronous belt
10.7.1 Strength of our belt alternative
10.7.2 Belt performance comparison
10.7.3 Parallel and angular misalignment demands
10.7.4 The Sonic tension meter
10.7.5 Polyurethane and the environment
10.7.6 Belt advantages
10.7.7 The pulleys
10.8 The tensioner
10.9 The double crosspin cardan joint
11. CHOICE OF DETAILS
11.1 Demands of the details
11.2 The shafts
11.2.1 Strength calculation of the middle shaft
11.2.2 Maximum moment for the existing middle shaft
11.2.3 The required diameter of the middle shaft
11.2.4 The steering column holder
11.3 The steel plate structure parts
11.3.1 The middle shaft bearing holder plates
Author: Maxime Outhier, Vilhelm Rydström, Imanol Sanz
Source: Blekinge Institute of Technology
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