1. youtube.com/watch?v=gD6d4hyLNNs 2. MachineDesignbyRobertL.Norton 3. efunda.com/materials/alloys/alloy_home/steels_properties.cfm

1. youtube.com/watch?v=gD6d4hyLNNs 2. MachineDesignbyRobertL.Norton 3. efunda.com/materials/alloys/alloy_home/steels_properties.cfm

Integration with Hu‐motor and incorporating feeding mechanism.

Integration with Hu‐motor and incorporating feeding mechanism.

Attachment of Cam to shaft could have been done through a key rather
than welding.

Attachment of Cam to shaft could have been done through a key rather
than welding.

Manufacturing could have been done in better way.

Manufacturing could have been done in better way.

Multiple use of product with modification in design by replacing hammer with axe for wood cutting.

Multiple use of product with modification in design by replacing hammer with axe for wood cutting.

Feeding Mechanism: Implementing the feeding mechanism (As shown in CAD model)

Feeding Mechanism: Implementing the feeding mechanism (As shown in CAD model)

Productivity: Productivity can be increased by increasing the size of product so that it can accommodate more number of cams and hammer heads to increase the number of stones crushing at an instant

Productivity: Productivity can be increased by increasing the size of product so that it can accommodate more number of cams and hammer heads to increase the number of stones crushing ...

Design of Cam: Improved design of cam to make the forces involved in lifting the hammer head constant

Design of Cam: Improved design of cam to make the forces involved in lifting the hammer head constant

Cam - Ductile cast iron
Links - Hot rolled plain carbon steel
Support shafts - Ductile cast iron
Hammer head - Medium carbon steel
Cam support and Link support - Ductile cast iron

Cam - Ductile cast iron
Links - Hot rolled plain carbon steel
Support shafts - Ductile cast iron
Hammer head - Medium carbon steel
Cam support and Link support - Ductile cast iron

If cam base radius is too small, pressure angle will be high, which causes more stress at cam bearing contact. If it is too large we will need a lot of material which increases the cost of assembly. Also if we have large mass, we will need to put in more energy to start or stop the mechanism (It acts like flywheel)

If cam base radius is too small, pressure angle will be high, which causes more stress at cam bearing contact. If it is too large we will need a lot ...

If length of second link (one which is in contact with cam) is more, we will need larger cam and if it is too small larger forces will be generated at cam and link contact which damages components.

If length of second link (one which is in contact with cam) is more, we will need larger cam and if it is too small larger forces will be generated ...

Rotation angle at pivot is also very important. If it is too large, cam size will increase dramatically and there will be a lot of torque variations while

rotating cam. If it is too small, we need to have large links thus by increasing torques.

Rotation angle at pivot is also very important. If it is too large, cam size will increase dramatically and there will be a lot of torque variations while

rotating cam ...

If we change the pivot position, all the assembly will get affected. Hammer may not rise to the complete height required or it may rise more than required, some components may get stuck while moving. So we need exact position for pivot for good impulse generation.

If we change the pivot position, all the assembly will get affected. Hammer may not rise to the complete height required or it may rise more than required, some components ...

If we increase the length of the link 1, we don’t need to turn it too much about pivot to raise it to the same height, but at the same time we need to apply more torque to rotate the mass. Link length and torque are linearly related.

If we increase the length of the link 1, we don’t need to turn it too much about pivot to raise it to the same height, but at the ...

If mass of the hammer is increased, then we don’t need to lift it to the same height to create same impulse, so we can have smaller link lengths. But at the same time, we will be having problems for feeding the rock in and also input torque increases.

If mass of the hammer is increased, then we don’t need to lift it to the same height to create same impulse, so we can have smaller link lengths ...