Gear shaping machine - Coursework on the discipline "Theory of Mechanisms and Machines" TMM

CONTENT

INPUT DATA FOR CALCULATION.................................................................................................................... 3

ANNOTATION............................................................................................................... 5

INTRODUCTION................................................................................................................. 6

GETTING WORK DONE..................................................................................................................... 9

1. DESCRIPTION OF THE STRUCTURE OF A COMPLEX TECHNICAL SYSTEM (TS)............ 9

2. STRUCTURAL ANALYSIS OF THE FLAT LINKAGE MECHANISM (PRM), WHICH IS A WORKING MACHINE OF COMPLEX TS..................................................10

-   2.1 Determination of the mobility of the PRM...........................................................10

-   2.2 Determine the composition of the PfP structure. .............................................................12

3. METRIC SYNTHESIS OF THE PRM KINEMATIC SCHEME. ...................................... 14

-   3.1 Determining the scale factor. ....................................................... 14

-   3.2 Metric synthesis of the initial position of the PfP links. .................................... 14

-   3.3 Building a plan of the positions of the mechanism at 12 points. ........................................ 15

-   3.4 Construction of kinematic diagrams of the path, velocity and acceleration of the output link....................................................................................................................... 16

4. KINEMATIC ANALYSIS OF PRM. ..........................................................................19

-   4.1 Determination of the velocities of points and links of the PfP. ................................................... 19

-   4.2 Determination of accelerations of points and links of the PRM. .................................................... 23

5. KINETOSTATIC (FORCE) ANALYSIS OF PRM...  ............................................30    

5.1 Determination of gravitational forces, support reactions and inertial forces of links. ........................30

-   5.2 Determination of the force control action of the PRM using the theorem of N.E. Zhukovsky. ............................................................................................................. 33

-   5.3 Power analysis of the leading link. ........................................................................ 34

6. CONCLUSIONS ON THE PROJECT. ................................................................................................................................ 35

8. List of references. ..........................................................................36

APPLICATION.......................................................................................................... 37