PRESENTED BY-SANJEEV KUMAR (12PT1A03B3)S.DHANESHWAR RAO (12PT1A03B1)MD.DANISH KHAN (12PT1A03A8)

PNEUMATIC THREE AXIS MODERN TRAILER

CONTENTSINTRODUCTIONPNEUMATIC CYLINDERSELEMENTSWORKING PROCEDUREADVANTAGESDISADVANTAGESAPPLICATIONSCONCLUSIONFUTURE SCOPEREFERANCES

INTRODUCTION

Three Axis Modern Trailer is one of the Lifting system in automobile at the time of emergency. Here the additional pneumatic cylinder and Control Valve is provided in the automobile itself. In this project, the Control Valve is used to activate/deactivate the Air input. The Valve is “ON” at the time of emergency; the compressed air goes to the pneumatic cylinder. Then the compressed air passes through the tube, and then pushes the pneumatic cylinder, so that the Lifting is applied at the time of Valve in “ON” position.

PNEUMATIC CYLINDERS

Pneumatic cylinder (sometimes known as air cylinders) are mechanical devices which use the power of compressed gas to produce a force in a reciprocating linear motion.

TYPES OF PNEUMATIC CYLINDERSSingle-acting cylindersDouble-acting cylindersOthers

SINGLE-ACTING CYLINDERS

Single acting cylinders use the force given by air to move in one direction (usually out), and a spring to return to the "home” piston.

DOUBLE-ACTING CYLINDERS

Double Acting Cylinders (DAC) use the force of air to move in both extend and retract strokes. They have two ports to allow air in, one for outstroke and one for instroke.

OTHER TYPESSingle-acting cylinders and double-

acting cylinders are most common types of pneumatic cylinders . following types are not particularly rare.

Rotary air cylindersRod less air cylinders

ELEMENTS

AIR COMPRESSORCYLINDERDIRECTION CONTROL VALVEVEHICLE MODEL FRAME

AIR COMPRESSOR

A COMPRESSOR THAT TAKES IN AIR AT ATMOSPHERIC PRESSURE AND DELIVERS IT AT A HIGHER PRESSURE.

SPECIFICATIONVOLUMEPOWERVOLTAGEDISCHARGE PRESSURERESTART PREASSUREAIR DISPLACEMENTSPEEDAIR OUTLETWEIGHTBOX DIMENSIONS

25LITERS / 6.5 GALLONS

2 HP230 V115 PSI / 8 BAR70 PSI160L/MIN/5.6CFM2800RPM2 x ¼" BSP22 KGSL58 CM X W25CMS X H58 CMS

PNEUMATIC CYLINDER

PNEUMATIC CYLINDER IS A MECHANICAL DEVICES WHICH USE THE POWER OFCOMPRESSED GASES TO PRODUCE LINEAR MOTION.

MODELROD TYPEACTION TYPEFLUIDBORESTROKESCREW HOLE DIAROD THREAD DIAMAX. PRESSUREOVERALL SIZE(APPROX)MAIN MATERIALWEIGHT

MAL 25 x 100SINGLE RODDOUBLE ACTINGAIR25MM100MM8.5MM / 0.33”100MM / 0.39”0.7MPa235 x 30MM / 9.2'' x 1.2'' (L*Max. D)ALLOY335 g

SPECIFICATION

DIRECTION CONTROL VALVE

DIRECTION CONTROL VALVE ALLOW FLUID FLOW INTO DIFFERENT PATHS FROM ONE OR MORE SOURCES.

VEHICLE MODEL FRAME

A VEHICLE FRAME IS THE MAIN SUPPORTING STRUCTURE OF MOTOR VEHICLE TO WHICH ALL OTHER COMPONENTS ARE ATTACHED.

WORKING

THE CONTROL VALVE IS FIXED IN NEAR OF THE DRIVING PERSONS IN THE FOUR WHEELER.

AIR TANK CONTAINS THE COMPRESSED AIR IS ALREADY FILLED.

THE VALVE WAS “ON” AT THE TIME OF EMERGENCY,THE CONTROL VALVE WAS ACTIVETED.

THE COMPRESSED AIR FLOW IS CONTROLLED BY CONTROL VALVE.

THEN THE COMPRESSED AIR GOES TO PNEUMATIC CYLINDERS.

THE PNEUMATIC CYLINDERS PISTON MOVES FORWARD AT THE TIME OF COMPRESSED AIR INLET TO THE CYLINDER.

THE PNEUMATIC CYLINDER MOVES TOWARDS THE LIFTING ARRANGEMENT.

ADVANTAGES

LIFTING COST WILL BE LESS.LESS POWER CONSUMPTION.FREE FROM WEAR ADJUSTMENT.LESS SKILL TECHNICIANS IS

SUFFICIENT TO OPERATE.

DISADVANTAGES

NEED SEPARATE AIR TANK.EFFICIENCY IS LOW.

APPLICATIONSFOUR WHEELER APPLICATION. IT IS ALSO IMPLEMENTED IN CRANE.ALL HYDRAULIC AND PNEUMATIC

DIPPER APPLICATIONS.

CONCLUSION

We have been able to increase the easiness in unloading trolley.

Problems occurred at the time of unloading the trolley in critical areas are eliminated.

Reducing overall time and fuel required for unloading the trailer.

FUTURE SCOPE

BECAUSE OF LESS COST AND EASY TO OPERATE IT WILL GIVE CONTINUOUS WORK AND IT WILL SAVE TIME.

THIS IMPLEMENTATION WILL INCREASE THE TROLLEY LIFTING ANGLE UP TO 45 TO 50°.

REFRENCES

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