DESIGN AND FABRICATION OF SHAFT DRIVE MECHANISM FOR AUTOMOBILES

ABSTRACT:

This project will make it only reduction of gear transmission power it is working shaft drive connection it is make it simple power transmission directly goes to wheel axle.
       Mechanical power may be transmitted directly using a solid structure such as a driveshaft; transmission gears can adjust the amount of torque or force vs. speed in much the same way an electrical transformer adjusts voltage vs current.
Hydraulic systems use liquid under pressure to transmit power; canals and hydroelectric power generation facilities harness natural water power to lift ships or generate electricity. Pneumatic systems use gasses under pressure to transmit power; compressed air is commonly used to operate pneumatic tools in factories and repair garages. A pneumatic wrench (for instance) is used to remove and install automotive tires far more quickly than could be done with standard manual hand tools.
In this project, the rotary power is transmitted at perpendicular direction through four rods without using gear drive transmission.

It is made up of mild steel material.  The whole construction of machine is placed on the base plate.The grinding tool is screwed to the main spindle which is driven through the gearless drive transmission from the motor. This motor with the gearless drive mechanism are mounted in base plate. The stone is fixed in the spindle and rotated by motor. 

 

DESIGN AND FABRICATION OF SHAFT DRIVE MECHANISM FOR AUTOMOBILES
DESIGN AND FABRICATION OF SHAFT DRIVE MECHANISM FOR AUTOMOBILES


INTRODUCTION:

This is a self – assessment test on the part of the students to assess his competency in creativity.
During the course of study, the student is put on a sound theoretical foundation of various mechanical engineering subjects and of course, to a satisfactory extent. Opportunities are made available to him to work on different kinds of machines, so that he is exposed to various kinds of manufacturing process.
As a students learn more and more his hold on production technology becomes stronger.  He attains a stage of perfection, when he himself is able to design and fabricate a device.
This is the project work.  That is the testimony for the strenuous training, which the student had in the institute.  This assures that he is no more a student, he is an engineer.
This report discuss the necessity of the project and various aspects of planning, design, selection of materials, fabrication, erection, estimation and testing.
 

WORKING PRINCIPLE:

This drive consists of 
1. DC Motor.
2. V belt drive transmission.
3. Six L shaped rods drive transmission.
4. Plummer block support bearings with shaft drive for grinding wheel.
The power is transmitted from the two motor, V belt drive to the grinding wheel through these six L shaped rods having 8mm diameter. These rods are transmit the power in perpendicular directions on two rear wheel.
The power is transmitted from the motor to the grinding wheel through six L shaped rods and V belt drive. The belt is a V belt. The purpose of this V belt drive is to reduce the speed from the motor.
These four rods are slide inside the cylindrical barrel and simultaneously transmit the power from the motor to grinding wheel.

ADVANTAGES:

• Gearless mechanism is used to reduce the maintenance cost.
• Quick response is achieved. 
• Simple in construction. 
• Easy to maintain and repair. 
• Cost of the unit is less when compared to other Machines.
• No fire hazard problem due to over loading.
• comparatively the operation cost is less.
• The speed of forward and reverse stroke is varied.
• Continuous operation is possible without stopping.
 

APPLICATIONS:

• Small and medium load transmission for four wheel.
• It is very useful in machine shop.
• Industrial Application.
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