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Hydraulic Actuators

1. Hydraulic actuators convert hydraulic energy into mechanical energy

2. They are of two types a) Linear actuatorsb) Rotary actuators

3

Linear Actuators

1. They produce linear motion as its output2. Types of linear actuators are

a) Single acting cylinderb) Double acting cylinderc) Double rod cylinder

4

Single Acting CylinderSingle Acting Cylinder

Fluid supplyPiston

Cylinder Piston seal Output shaft

Relief ventsSpring

D E S I G N A N D A P P L I C A T I O N S O F I N D U S T R I A L R O B O T SS A B A R I G I R I V A S A N . R

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Single Acting Cylinder

Animation6

Double Acting CylinderDouble Acting Cylinder

F Piston

Cylinder Piston seal Output shaft

R

D E S I G N A N D A P P L I C A T I O N S O F I N D U S T R I A L R O B O T SS A B A R I G I R I V A S A N . R

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Double Acting Cylinder

Animation8

Double Rod CylinderDouble Rod Cylinder

Piston

Cylinder Piston seal Output shaft

F R

D E S I G N A N D A P P L I C A T I O N S O F I N D U S T R I A L R O B O T SS A B A R I G I R I V A S A N . R

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Double Rod Cylinder

Animation10

Rotary Actuators

1. They produce rotary motion as its output.2. Types of rotary actuators

a) Rotary vane actuatorb) Rack and pinion actuator

• Single cylinder rack and pinion actuator• Double cylinder rack and pinion actuator

11

Rotary Vane ActuatorRotary Vane Actuator

C1

C2

P1

P2

Stationary barrier

Outer cylinder

Vane

Actuator shaft

Vane seal

D E S I G N A N D A P P L I C A T I O N S O F I N D U S T R I A L R O B O T SS A B A R I G I R I V A S A N . R

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Rotary Vane Actuator

Animation13

Single Cylinder Rack and PinionActuator

Single Cylinder Rack and Pinion Actuator

FR

Piston seal PinionOutput shaft

Cylinder Piston Rack Piston

D E S I G N A N D A P P L I C A T I O N S O F I N D U S T R I A L R O B O T SS A B A R I G I R I V A S A N . R

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Single Cylinder Rack and PinionActuator

Animation15

Double Cylinder Rack and PinionActuator

Double Cylinder Rack and Pinion Actuator

Rack

FR

F ROutput shaft

Cylinder Piston Rack

Pinion

Piston

D E S I G N A N D A P P L I C A T I O N S O F I N D U S T R I A L R O B O T SS A B A R I G I R I V A S A N . R

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Double Cylinder Rack and PinionActuator

Animation17

End of the Presentation

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DES IGN AND APPL ICAT IONS OF INDUSTRIAL ROBOTSSABARIG IR IVASAN.RISBN 978-81-908268-0-8

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