How To Judge The Quality Of The Hydraulic Cylinder Of The Mucking Machine?
The hydraulic cylinder of the mucking machine belongs to the actuator
at the end of the hydraulic system, and it is also the power support for
the action of the mucking machine when it is scraping. Therefore,
the hydraulic cylinder of the wheeled mucking loader is very important,
which directly affects its quality. the performance of the hydraulic
system. So how to judge the quality of cylinder products?
The
buffering effect of the hydraulic cylinder of the crawler mucking
loader: Setting a buffer mechanism at the stroke end of the hydraulic
cylinder can decelerate the piston component to close to zero when
it reaches the stroke end, so as to reduce the piston and the hydraulic
pressure caused by the inertial force and hydraulic pressure of the
piston component. Mechanical impact between end caps, thereby reducing
noise and preventing damage to the hydraulic cylinder of the tunnel
mucking loader. The general requirements of the buffer mechanism are:
the buffer mechanism should be able to absorb a large kinetic energy
with a short buffer stroke. During the buffering process, the pressure
change of the buffer chamber is relatively gentle, and the peak pressure
is less than 1.5 times the rated pressure of the hydraulic cylinder.
When the kinetic energy is converted into heat energy and the oil
temperature rises, the maximum temperature of the oil should not exceed
the allowable limit of the seal.
Internal leakage and external
leakage of the hydraulic cylinder of the belt mucking loader:
Internal leakage refers to the leakage of hydraulic oil from the high
pressure chamber to the low pressure chamber in the two chambers of the
cylinder. The internal leakage of medium and high pressure
double-acting hydraulic cylinders is specified according to the quality
classification. External leakage refers to the leakage of hydraulic oil
from the cylinder piston rod or other places. The external leakage of
medium and high pressure double-acting hydraulic cylinders and
single-acting hydraulic cylinders is specified according to the quality
classification. These two points are the key to judging the quality of
the hydraulic cylinder of the mucking machine, and also the important
guarantee for the mechanical action of the hydraulic cylinder when the
mucking machine is working.
