This series wire rope electric hoist has two
types, fixed type and trolley type. The fixed type are divided into
A1, A2, A3, A4 four types, they can be installed on the frame
directly. The trolley type can be moved can install on the rail.
CD1 is single speed lifting equipment, while MD1 always have double
lifting speed which is normal speed and slow
speed.
We
mainly manufacture capacity 0.****2t, lift height ***0m series
electric hoists; also we can design special electric hoists as your
requirement.
Application:
Trolley electric hoist can be installed with
most cranes or hang on the joist steel girder, lift cargo in
straight line or curve line; fixed electric hoist can be installed
on fixed support and lift cargo with vertically or with different
angles.
This
series electric hoist applies to industrial enterprise, mining
company, normal factory, workshop, railway, sea port, warehouse,
stock ground and so on. This is the ideal equipment to improve
working efficiency and working conditions
nowadays.
Operate Conditions:
Working temperature: ***-**0
degree
Work
moisture: <*5%
Elevation: <***0m
No
fire, no explosive goods, no corrosion medium.
Forbidden to lift melting metal, poisonous,
explosive, flammable goods. The working duty is medium, when using
when the working duty is level up, the rated lift capacity should
be reduced accordingly (*0% per level).
Transmission and Working
Principle
CD1
and MD1 electric hoists are mainly composed of three parts: lifting
mechanism, travelling mechanism, electrical
parts.
Wirerope motor
hoist Hoisting
/Lifting mechanism
Lifting motor drives rope drum rotating
through coupling and hollow shaft of reducer, which makes the wire
rope on the rope drum driving the hook unit up and
down.
If
lift height is 6m, a claw coupling is used to link the motor shaft
and shaft of reducer.
If
lift height is or more than 9m, intermediate shaft and rigid
coupling are added.
If
lift height is or more than *8m, a carriage is used to enhance the
rigidity of intermediate shaft.
Lifting motor
Lifting motor uses tapered rotor motor with
strong staring torque to adapt frequent direct staring in the
intermittent work.CD1 type hoist uses ZD type single speed motor
and MD1 type hoist uses ZDS type double speed motor. The ratio of
ZDS type motor's constant speed and slow speed is
*0:1
Speed reducer
Cap
2t hoist uses straight tooth planetary gear reducer and the rest
are using helical gear three stage reducer. Gear and shaft are made
by alloy steel and high carbon steel and through proper heat
treatment to ensure its reliability and service life. Box body and
cover is made of cast iron to ensure hoist's good damping
performance and reliable sealing.
Wirerope motor
hoistRope
Drum
Rope
Drum is made of cast iron or seamless steel tube, using/with the
help of spline transferring power. The sell of rope drum is welded
with steel plate.
Rope
drum is the central heart of a hoist. The upper side is linked with
traveling mechanism through equalizing beam. Both ends are
connected with lifting brake and motor respectively. The lower side
works together with hook through wire rope. Up front of the cover,
limiting stopper guide-rod and heavy punch stop block are
installed.
Lifting hook
Lifting hook is forged with specialized
steel.In the use of trust ball bearing, lifting hook is linked with
sheel through hook beam making lifting hook go slick. If lift
capacity is five ton or less than five ton, slide wheel is single.
If lift capacity is ten ton or more than ten ton, slide wheels are
double.
Wirerope motor
hoistTraveling
mechanism
Traveling mechanism is made of electric crab,
traveling motor, traveling reducer, driven crab and so on. Main
engine hangs under the traveling mechanism moving reciprocatlly.
The normal traveling speed is *0 or *0m/min. If the lift capacity
is 1~5t and the lift height is or more than *2m, another driven
crab is installed.
Electric device
The
electric device of CD1 MD1 model hoist consists of electric control
box (No electric control box, if the lift capacity is 0.*5t),
switch, Limiting stopper, connecting wires and so
on.
The
normal operating voltage of switch is **0V or *6V. Pressing
the correct can control the hoist through controlling on and
off of the relay in the control box, according to the direction
symbols on the switch.
