Machine speed box

Contents

Introduction, Design Description

Motor selection, kinematic calculation

Summary Table

Calculation of spur gear

Calculation of V-belt transmission

Defining Geometric Parameters

Determination of forces acting in engagement

Coupling selection and calculation

Diagram of shafts loading in axonometry

10. Calculation of shafts for static strength

11. Calculation of shaft fatigue resistance II

12. Calculation of bearings for durability

13. Calculation of spline and keyway connections

14. Calculation of control mechanism

15. List of used literature

16. Specification

Introduction

The speed gearbox is two-stage with mobile gears.

This speed box is designed and designed by Tulaev Peter Alekseevich.

It is designed to stepwise change the speed of rotation of the output shaft and transfer the rotational torque of the electric motor to the pulley of the front head of high-precision metal cutting machines, but can be used in drives of other machines .

Torque informs individual motor 4A132S6Y3 of M300 design type

(P = 5.5kW, p = 965 min-1). The gear wheel 28 (sheet 1) is rotated by an electric motor and imparts a torque to the wheel 21 (sheet 1), which transmits it through the electromagnetic clutch 45 (sheet 1) to the spline shaft 22 (sheet 1), then through the gearbox, pulley 15 (sheet 1) and wedge belts are transferred to the pulley of the machine head.

Due to the stringent requirements for precision machines, the speed box is located separately from the machine inside the pedestal on a special plate next to the front head. Since vibration from the electric motor and the speed box adversely affects the cutting process, torque is transmitted to the machine using wedge belts.