Gear design and cam mechanism synthesis
- Added: 08.02.2022
- Size: 1 MB
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Description
The course project consists of three tasks. A scheme of kinematic research is constructed, the design of gear transmission and the synthesis of the cam mechanism are performed. An explanatory note is also written, taking into account the SRT.
Project's Content
Записка Игнатьев Иван.doc
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Additional information
Contents
Introduction
Legend List
1 Kinematic examination of the mechanism
1.1 Initial data
1.2 Structural analysis of the mechanism
1.3 Speed Plans
1.4 Acceleration Plans
1.5 Kinematic diagrams
1.6 Comparative Results Analysis
2 Gear Design
2.1 Initial data
2.2 Calculation of engagement geometry
2.3 Calculation of planetary stage
2.4 Linear and angular transmission rates
2.5 Gearbox results and efficiency comparison
3 Synthesis of cam mechanism
3.1 Initial data
3.2 Calculation of cam kinematic parameters on the computer
3.3 Selecting Scales for Plotting
3.4 Determining the main dimensions of the cam mechanism
Conclusion
List of sources used
Paper
Course project.
Calculation and explanatory note: 24 pages, 1 table, 4 sources.
Graphic documentation: 3 sheets A1.
COMPRESSOR, KINEMATICS, SPEED PLAN, ACCELERATION PLAN, ANALYSIS, GEARBOX, ENGAGEMENT, CAM MECHANISM
The course design includes structural and kinematic analyses of the compressor mechanism.
According to the given scheme and parameters, the number of teeth of the wheels of the reduction gear was selected, the geometric parameters of the engagement of the simple stage of the reduction gear and its qualitative indicators were calculated.
Cam mechanism is designed
Introduction
Single-cylinder piston compressor is designed for air compression and is driven by electric motor. Air enters the cylinder from the atmosphere through a filter installed in the suction chamber of the valve box, and after compression is forced into a special tank. A water jacket is used to remove heat generated during compression. Change of pressure in cylinder along piston path is shown in indicator diagram.
The main mechanism of the compressor is crankshaft. It consists of crankshaft OA, connecting rod AB and piston B.
To ensure the necessary uniformity of movement, a flywheel is fixed on the crankshaft of the machine (not considered in heading work). Counterweights on the crankshaft balance the mechanism, reducing the forces in the bearings. The mechanism lubrication is circulating, under pressure from an oil pump placed in the crankcase and driven by a crankshaft using a gear train.
Plunger oil pump - cam type.
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