The concrete trailer pump is a hydraulic double cylinder piston type pump, which is driven by an electric or diesel motor.
The pump
system adopts a closed oil circuit, constant power control, and concrete conveying volume adjustment.
how does the concrete pump work
(1)(2) main oil cylinder ; (3) water tank ; (4) reversing device; (5)(6) concrete cylinder; (7)(8) concrete piston; (9) hopper; (10) distribution valve; (11) swing arm; (12)(13) swing cylinder; (14) concrete outlet
First,
the concrete piston is respectively connected with
the piston rod of
the main oil cylinder. Under
the action of
the hydraulic oil of
the main oil cylinder, one cylinder moves back, while
the o
ther cylinder moves forward.
Second,
the outlet of
the distributing valve connects with
the outlet.
The o
ther end connects with
the swinging arm through a spline shaft and can swing left or right under
the action of
the swinging oil cylinder.
Then, when
pumping concrete materials,
the concrete piston advances,
the concrete piston retreats under
the action of
the main cylinder.
At
the same time, under
the action of
the swinging cylinder,
the distribution valve connects with
the concrete, and
the concrete cylinder connects with
the hopper.
In this way,
the concrete piston backward,
then
the concrete in
the hopper into
the concrete cylinder, concrete piston forward,
the concrete cylinder send material into
the distribution valve pump.
When
the concrete piston retreats to
the end of
the stroke,
the reversing device in
the water tank is triggered. Again,
the main oil cylinder is reversed to start continuous
pumping.
The main oil cylinder changes direction simultaneously swings
the oil cylinder to change direction.
Then
the distribution valve connects with
the concrete cylinder, and
the concrete cylinder outlet connects with
the hopper.
At this time,
the piston retreats and goes forward, achieving continuous
pumping.
When
the reverse
pumping starts, in
the suction process,
the distributing valve connects one concrete cylinder with
the pump outlet. On
the contrary, in
the push process,
the distributing valve will connect this concrete cylinder directly with
the concrete hopper. In this way, pump will draw
the concrete in
the pipeline back to
the hopper.
The distribution valve is
the key part of
the concrete pump, and its type will directly affect
the performance of
the concrete pump.