03-09-2014, 04:47 PM
FABRICATION OF PNEUMATIC HUSK REMOVER PROJECT REPORT
[attachment=67599]
INTRODUCTION
The pneumatic type remover for automobile is a Mechanical device which is widely used in agricultural works. The pneumatic husk remover for agricultural reduce the time of the man power (operator) in removing the husk. The reason for the development and the introduction of the pneumatic husk remover for agricultural is given below. The pneumatic husk remover for agricultural is one of the improved devices
PNEUMATIC CYLINDER
All the strange names and terms around pneumatics have evolved through about 100 years of their use in manufacturing. Double acting, four way, quick connect are all terms that were invented to describe (as best as could be) the difference between the parts. Don't let the names discourage you. They're just names. I've used quite colorful terms myself when working with pneumatics, most of which i won't use here...
The first thing to remember is: Pneumatics are easy... really! Its all the different names and parts that seem to be overwhelming. But enough about that... on to the fun stuff.
AIR CYLINDERS
There are only two main kinds of air cylinders: Double acting, and single acting. They come in all variations, shapes and sizes. Both kinds are useful for haunt work. Double acting cylinders are useful when you need to push in both directions, and single acting cylinders are useful when only a push in one direction is needed. And, sometimes 'in a pinch', you can adapt a double to act as a single, and a single to act as a double.
Air cylinders are measured by three main values: "pressure rating", the "bore", and "stroke"
SINGLE ACTING CYLINDER
Single Acting means the air cylinder rod is ONLY pushed in a single direction, either out or in. There is only one connection for air, and a little hole in the other end to let air in and out. A spring is used to push the rod in the opposite direction after air pressure is removed
[b]MOUNTING[/b]
There are about as many ways to mount an air cylinder as there are different types of air cylinders. Again, this is because of all the uses. My personal favorite is the clevis mount. (see photo below) Clevis mounts give the greatest amount of movement, flexibility, and ease of mounting over other mounts
SOLENOID VALVE
The directional valve is one of the important parts of a pneumatic system. Commonly known as DCV; this valve is used to control the direction of air flow in the pneumatic system. The directional valve does this by changing the position of its internal movable parts.
This valve was selected for speedy operation and to reduce the manual effort and also for the modification of the machine into automatic machine by means of using a solenoid valve.
A solenoid is an electrical device that converts electrical energy into straight line motion and force. These are also used to operate a mechanical operation which in turn operates the valve mechanism. Solenoid is one is which the plunger is pulled when the solenoid is energized.
The name of the parts of the solenoid should be learned so that they can be recognized when called upon to make repairs, to do service work or to install them.
COMPRESSOR
Compressor is the air producing machine. They collect the airs from the atmosphere are in the running of machine are engine. Air compressors are utilized to raise the pressure of a volume of air. Air compressors are available in many configurations and will operate over a very wide range of flow rates and pressures. Compressed air was expelled by primitive man to give glowing embers sufficient oxygen to allow them to flare up into a fire. During the compression process, the temperature increases as the pressure increases. This is known as polytypic compression. The amount of compression power also increases as the temperature increases. Compressors are staged thereby reducing the temperature rise and improving the compression efficiency. The temperature of the air leaving each stage is cooled prior to entering the next stage. This cooling process is called intercooling. Volumetric efficiency also increases with multi-stage compression since the pressure ratio over the first stage will be decreased
CONTROL UNIT
In pneumatic multipurpose device is an air-operated device used for many small operations. It is a portable one. Compressed air is the source of energy for this device. The compressed air is allowed through the valve, this compressed air flow direction control by the unit. The compressed air is allowed through the compressed air form the compressor firstly enters the Control unit. In the control unit the pressure of the air is controlled unit the pressure of the air is controlled and sent to the cylinder. The gate valve controls the pressure volume of air. Then the pressure is read by a pressure gauge.
WORKING PRINCIPLE
The machine we fabricate here works with the help of pneumatic power and simple mechanisms. Pneumatic finds its application where more power is required. The pneumatic power is easily available medium. There are two pneumatic cylinders involved in the process of removing the coconut husk. One cylinder is mounted upside down on the top of the frame another one is mounted at the bottom of the frame. The second cylinder has a plate in which the coconut should be placed. The husk remover is mounted on a plate at the centre of the frame with help of hinge joint. The first pneumatic cylinders piston rod is mounted to vertical links with help of hinge joints. The other end of the link is also hinged to the husk remover. Hence when the piston rod moves the husk remover moves at an angle with help of hinge joints. The second cylinder is raised according to the height of the coconut placed in the plate
CONCLUSION
The project carried out by us made an impressing task in the field of agricultural. It is very useful to the farmers for pneumatic husk remover.
This project will reduce the cost involved in the concern. Project has been designed to perform the entire requirement task at the shortest time available.
[attachment=67599]
INTRODUCTION
The pneumatic type remover for automobile is a Mechanical device which is widely used in agricultural works. The pneumatic husk remover for agricultural reduce the time of the man power (operator) in removing the husk. The reason for the development and the introduction of the pneumatic husk remover for agricultural is given below. The pneumatic husk remover for agricultural is one of the improved devices
PNEUMATIC CYLINDER
All the strange names and terms around pneumatics have evolved through about 100 years of their use in manufacturing. Double acting, four way, quick connect are all terms that were invented to describe (as best as could be) the difference between the parts. Don't let the names discourage you. They're just names. I've used quite colorful terms myself when working with pneumatics, most of which i won't use here...
The first thing to remember is: Pneumatics are easy... really! Its all the different names and parts that seem to be overwhelming. But enough about that... on to the fun stuff.
AIR CYLINDERS
There are only two main kinds of air cylinders: Double acting, and single acting. They come in all variations, shapes and sizes. Both kinds are useful for haunt work. Double acting cylinders are useful when you need to push in both directions, and single acting cylinders are useful when only a push in one direction is needed. And, sometimes 'in a pinch', you can adapt a double to act as a single, and a single to act as a double.
Air cylinders are measured by three main values: "pressure rating", the "bore", and "stroke"
SINGLE ACTING CYLINDER
Single Acting means the air cylinder rod is ONLY pushed in a single direction, either out or in. There is only one connection for air, and a little hole in the other end to let air in and out. A spring is used to push the rod in the opposite direction after air pressure is removed
[b]MOUNTING[/b]
There are about as many ways to mount an air cylinder as there are different types of air cylinders. Again, this is because of all the uses. My personal favorite is the clevis mount. (see photo below) Clevis mounts give the greatest amount of movement, flexibility, and ease of mounting over other mounts
SOLENOID VALVE
The directional valve is one of the important parts of a pneumatic system. Commonly known as DCV; this valve is used to control the direction of air flow in the pneumatic system. The directional valve does this by changing the position of its internal movable parts.
This valve was selected for speedy operation and to reduce the manual effort and also for the modification of the machine into automatic machine by means of using a solenoid valve.
A solenoid is an electrical device that converts electrical energy into straight line motion and force. These are also used to operate a mechanical operation which in turn operates the valve mechanism. Solenoid is one is which the plunger is pulled when the solenoid is energized.
The name of the parts of the solenoid should be learned so that they can be recognized when called upon to make repairs, to do service work or to install them.
COMPRESSOR
Compressor is the air producing machine. They collect the airs from the atmosphere are in the running of machine are engine. Air compressors are utilized to raise the pressure of a volume of air. Air compressors are available in many configurations and will operate over a very wide range of flow rates and pressures. Compressed air was expelled by primitive man to give glowing embers sufficient oxygen to allow them to flare up into a fire. During the compression process, the temperature increases as the pressure increases. This is known as polytypic compression. The amount of compression power also increases as the temperature increases. Compressors are staged thereby reducing the temperature rise and improving the compression efficiency. The temperature of the air leaving each stage is cooled prior to entering the next stage. This cooling process is called intercooling. Volumetric efficiency also increases with multi-stage compression since the pressure ratio over the first stage will be decreased
CONTROL UNIT
In pneumatic multipurpose device is an air-operated device used for many small operations. It is a portable one. Compressed air is the source of energy for this device. The compressed air is allowed through the valve, this compressed air flow direction control by the unit. The compressed air is allowed through the compressed air form the compressor firstly enters the Control unit. In the control unit the pressure of the air is controlled unit the pressure of the air is controlled and sent to the cylinder. The gate valve controls the pressure volume of air. Then the pressure is read by a pressure gauge.
WORKING PRINCIPLE
The machine we fabricate here works with the help of pneumatic power and simple mechanisms. Pneumatic finds its application where more power is required. The pneumatic power is easily available medium. There are two pneumatic cylinders involved in the process of removing the coconut husk. One cylinder is mounted upside down on the top of the frame another one is mounted at the bottom of the frame. The second cylinder has a plate in which the coconut should be placed. The husk remover is mounted on a plate at the centre of the frame with help of hinge joint. The first pneumatic cylinders piston rod is mounted to vertical links with help of hinge joints. The other end of the link is also hinged to the husk remover. Hence when the piston rod moves the husk remover moves at an angle with help of hinge joints. The second cylinder is raised according to the height of the coconut placed in the plate
CONCLUSION
The project carried out by us made an impressing task in the field of agricultural. It is very useful to the farmers for pneumatic husk remover.
This project will reduce the cost involved in the concern. Project has been designed to perform the entire requirement task at the shortest time available.