the stranding cage is operated through the touch screen of human-machine
interface, and the start, stop, inching and other operations of the winch
cage are coordinated and controlled by PLC to ensure the synchronization of
each unit in any running state. The man-machine interface can input and
display various data of the winch, such as speed, pitch, production speed,
etc., which is easy to operate.
Φ 1250 / 3 bobbin stranding cage is composed of reducer box, large bearing
seat, brake disc, wire disc rack, cradle support disc, etc. The winch cage is
supported by reducer box and large bearing seat, and the cradle is arranged
in three equal parts with conical structure design. The main shaft is a whole
high-quality seamless steel pipe, and the support plate of reel frame is
connected with the main shaft by a combination of flat key and expansion
sleeve. The large pressure plate is welded and annealed. Driven by a single
AC variable frequency motor, it has left and right stranding function. The
planetary gear mechanism is used to realize 100% back twisting.
the whole machine is designed for high-speed operation, without tugboat
bearing, and can be loaded and operated through the internal bearing of
reducer box and large bearing seat. The inner part of the gearbox is
lubricated by the spray of the oil pump motor; The large bearing seat adopts
labyrinth seal structure, which circulates oil supply, lubrication and
cooling through oil pump motor (patented design). Ensure the stability of
planetary gear is adopted in the unwinding mechanism of the winch cage, which
can bear large torque and operate stably.
the stranding cage is separately driven by 45KW AC motor with built-in
encoder. The encoder runs in the closed-loop control system and is controlled
by PLC and all units in a unified and coordinated way.
pay off tension: the reel frame provides the required tension for pay off
through mechanical belt friction, and the tension is adjusted manually.
braking system: cage braking: the braking process is coordinated by PLC
through the air brake, frequency converter and braking resistor. The whole
braking process is synchronized with the whole machine to ensure the
stability of pitch.
There are 12 sets of filling rope pay off frames at the outgoing end of 1250
/ 3 stranding cage.
the stranding cage is equipped with various protections, such as fault alarm
of driving motor, over temperature alarm of large bearing, insufficient oil
supply alarm of circulating oil, etc. When there is a fault, the man-machine
interface prompts to display the specific fault information, which is convenient
for troubleshooting and maintenance.
the back support of the pay off frame of the main winch cage adopts triangle
structure, which is welded by steel plate and tempered. This structure can
reduce the load of the components, not reduce the bearing strength, and avoid
deformation and cracking over time.
with the improvement of the overall structure, compared with the tugboat
structure, the corresponding optimization has been made, which makes the
cable travel more smoothly, the wire bending less, and the operation more
the front support adopts large-scale bearing, which can effectively improve
the running speed, avoid maintenance, reduce the failure rate and increase
the bearing strength compared with the tugboat structure