chapter 1-30_part 1 Flashcards
converts the pressure energy of the fluid into mechanical energy to perform tasks like moving or lifting loads.
hydraulic actuator
provides rotational motion and torque, converting hydraulic energy back into mechanical energy for driving machinery.
rotational actuator(hydraulic motor)
Components of a single-acting hydraulic cylinder:
piston
barrel (cylindrical housing)
a rod
ports
has multiple stages that extend for longer strokes with a short retracted length
telescopic cylinder
uses two pistons to generate more force in applications where a smaller diameter is required.
tandem cylinder
Three main types of hydraulic motors:
Gear motors
Vane motors
Piston motors (Axial and Radial)
convert the energy of fluid
back into the mechanical power.
actuator
provide motion in a straight line.
Hydraulic linear actuators
finite amount determined by
the construction of the unit.
total movement
extend and retract a piston rod to
provide a push or pull force to drive the external load
along a straight-line path.
Hydraulic cylinders
capable of limited angular
movements
Semi-rotary actuators
Hydraulic cylinders are of the following
types:
*Single-acting cylinders.
*Double-acting cylinders.
*Telescopic cylinders.
*Tandem cylinders.
is simplest in design and
is shown schematically
single acting cylinder
the cylindrical housing of the piston
barrel
produce force in one direction by
hydraulic pressure acting on the piston.
Single-acting cylinders
cylinder extends to lift a weight against the
force of gravity by applying oil pressure at the blank
end.
Gravity-Return Single-Acting Cylinders
pressure is sent through the pressure port
situated at the blank end of the cylinder
Spring-Return Single-Acting Cylinder
The operation of a double-acting cylinder with a piston rod
on one side. To extend the cylinder, the pump flow is sent to the
blank-end port
Double-Acting Cylinder with a Piston Rod on One Side
a cylinder with a rod extending from both ends
Double-Acting Cylinder with a Piston Rod on Both Sides
used when a long stroke length and a
short retracted length are required.
telescopic cylinder
used in applications where a
large amount of force is required from a
small-diameter cylinder.
Tandem Cylinder
