HYDRAULIC LIFT WITH POWER BOOSTER -Mechanical Projects 

SYNOPSIS

This project deals with the design and fabrication of the hydraulic lift with an airto- hydraulic pressure booster. The hydraulic lift is capable of lifting heavy work pieces with a large force thus enabling accurate and precise operation. The project combines the advantages of both hydraulics and pneumatic, thus eliminating the drawbacks that may be associated with the use of fluid power Also the air-to-hydraulic pressure booster amplifiers the force with which the vice grips the workpiece.
The highlights of this project are that it is very economical, accurate, and easy to operate and has wide variety of applications.
 

INTRODUCTION

This project deals with the operations of a simple lifter using fluid power. Fluid power enables us to operate the lift with ease, accuracy, safety and for high pressure operations. The advantages of hydraulics and pneumatics are merged in such a manner in this project so as to completely eliminate any disadvantage that may be associated with the use of fluid power.
The presence of an air-to-hydraulic pressure boaster in this hydro pneumatic lift enables multiplication of force. A small pneumatic pressure is utilized to generate a high hydraulic fluid pressure which bears on a hydraulic actuator. Also the use of standard components and materials has lead to the considerable reduction in fabrication cost.
 

 

HYDRAULIC LIFT WITH POWER BOOSTER
HYDRAULIC LIFT WITH POWER BOOSTER

 WORKING PRINCIPLE

Lifting the work pieces:

Air from a single stage air compressor enters the push button direction control valve and is directed to the pneumatic actuator. The pneumatic actuator is a single acting cylinder and the compressed air extends the piston. The piston rod enters the hydraulic Tank filled with hydraulic oil and pressurizes the hydraulic fluid. Thus the hydraulic fluid enters the delivery pipe through a filter arrangement.
The pressurised fluid is made to act on a hydraulic cylinder placed on a table arrangement. The hydraulic fluid then extends the hydraulic piston. The end of the piston rod is connected to lifting arm. The end of the arm hook is connected. This is used to lift the work piece in an easy way.
 

Uplifting the work piece:

The operation of hand lever activates the spring centered two ways, two positions, direction control valve in the hydraulic circuit. Also, the push button direction control valve in the pneumatic circuit is operated simultaneously. This exhausts the air in the pneumatic cylinder, thus retracting the pneumatic piston. At the same time, hydraulic fluid flows back to the hydraulic tank. Hence the single acting hydraulic cylinder retracts the hydraulic piston thereby downward the work-piece.
 

ADVANTAGES

1. The moving parts of this system are cooled by the oil itself used. Thus this project does not require any cooling arrangements.
2. The material loaded can be easily.
3. Checking and cleaning are easy, because of the main parts are screwed.
4. Handling is easy
5. Low Manual power
6. Easy to Repair.
7. Replacement of parts are easy
 

APPLICATIONS

1. It is very much useful in all small scale industries.
2. Loading the material from ground level to small vehicle
3. Move weight material to another place
4. Loading and unloading purpose.
 

DISADVANTAGES

  • Cost of the equipment is high.
  • This system requires high maintenance care.
  • This is lifted to particular height only.
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