TMM Simple pump

Contents

INTRODUCTION

1. LEVER MECHANISM SYNTHESIS AND ANALYSIS

1.1. Source Data

1.2. Building a plan of provisions

1.3. Structural Analysis

1.4. Computer Mechanism Calculation

1.5. Kinematic Plan Analysis

1.5.1. Building a Velocity Plan

1.5.2. Build an acceleration plan

1.6. Power calculation

1.6.1. Determination of inertial factors

1.6.2. Power calculation of Assur group II4 (4.5)

1.6.3. Power calculation of Assur II1 group (2,3)

1.6.4. Power calculation of I (0.1) class mechanism

2. FLYWHEEL CALCULATION

2.1. Determination of the given factors

2.2. Chart Building

2.3. Determine the moment of inertia of the flywheel and its dimensions

CONCLUSION

Literature

Kinematic Plan Analysis

Since one of the properties of Asur groups is their kinematic determinability, kinematic analysis is carried out sequentially by Assur groups, and the order of their consideration coincides with the direction of the arrows in the structure formula

Flywheel calculation

The purpose of the calculation is to determine the geometric dimensions of the flywheel .

at installation of which crank angular velocity fluctuations decrease

to the specified level δ. The calculation is carried out using the graphoanalytic method based on the use of the energy mass diagram.

Conclusion

In the study of the mechanism, results were obtained based on

from which the following conclusions can be drawn:

By structural analysis, the degree of mobility of the mechanism, its class and structural formula were determined.

Using the plan method, kinematic and force were determined

characteristics of the mechanism in a given position. Since the discrepancy between the results obtained in various ways (machine and graphoanalytic) does not exceed 10%, we can talk about the correctness and accuracy of the calculation.

During the power calculation of the mechanism, inertial characteristics were determined. The obtained values ​ ​ of inertia forces and main moments of inertia turned out to be significant (for example, inertia force P2 and more than 6 times the gravity of link 2). This is due to the fact that the mechanism is quite fast (n1 = 140 rpm) and has significant dimensions.

When calculating the flywheel, a graph was built to change the given moment of inertia. The graph shows sharp differences between the tops and valleys of waves depending on the angle of rotation of the crank. This means that this mechanism works with a greater degree of unevenness. For the mechanism to work smoothly and without overloads, it must be balanced. The simplest way to balance the mechanism is to install the flywheel on the drive shaft of the mechanism.

The geometric dimensions of the flywheel as a result of the calculation were quite large (Dcp = 1.17 m), this can be explained by the feature of the structure and the mode of operation of the mechanism.

List_1.cdw

List_2.cdw