Automatic Armature Roll and Dipping Impregnation Varnish Insulation
Machine WIND-ZDG
Application and Purpose:
The motor coil must be impregnated with insulating varnish and its
adjacent parts,
Let the conductor wire, slot insulation isolation parts whole
compacted and immerged with
insulating resin coating become strong overall density.
Competitive Advantages:
1.Fully automatic, operator only need to load and unload armature
2.Rolling and dipping device is at top layer of machine,easy to
adjust and maintain
3.Centrifigution exhausting blower suck the exhausting
gas,Environment friendly
Usually the varnish dipping machine for stator and rolling and
dipping machine for armature need chiller,
Because the heated workpiece is in the varnish which transfer heat
and rise varnish temperature.
Chiller Needed
|
Usually the varnish dipping machine for stator and
rolling and dipping machine for armature need chiller
|
Reson
|
Becasue heated workpiece is in the varnish which transfer heat and
rise varnish temperature
|
Purpose
|
The chiller will keep the varnish quality, no deterioration and
thinner
|
Example of one Armature roll and dip Machine proposal:
General Output Qty around 700pcs/8hours (get 100pcs in first 2hours
and 100pcs in each following
hours)
1. Chain pitch P=152.4mm, Chanin roll and move in guiding roll
2. Working station: 60pcs(both side 120pcs workpiece)
Loading/unloading 8, preheating 9, air cooling 2, rolling and
dipping 1, flow 2, curing 38
3. Fast inserted fixture
4. Rolling and dipping device is at top layer of machine, easy to
adjust and maintain
5. Workpiece self rotate before the rolling and dipping station,
self rotate is drive by double chain with
Pitch P=15.875
6. Heating tunnerl use to keep the heat, and inspection door at
side of machine with double layer
temperature keeping door
7. The cycle time, rolling and dipping time can be set on touch
screen
8. Use electrical heating pipe with hot air blow device,temperature
150℃ adjustable
There is pre-heating,colloidize, post curing four are for heating,
the heating pipe is flyer shape
and life time is long
9. The temperature contoller is can set and show temperature in
different area of tunner and alarm if
overheating
10. Centrifigution exhausting blower suck the exhausting gas of
loding/unloading , rolling and dipping area
11. PLC :Omron, Touch screen: Weiven Time relay : LG
12. Three phase 380V/50Hz, To tal power:35KW
The following purpose can be achieved through the insulation
treatment:
1. To improve the moisture resistance of motor insulation
Any insulating material is more or less absorbing moisture in moist
air. Such as Electrotechnical insulation
material paper DMD,PMP,Polyester, the moisture in the air is easily
penetrated into the insulation material
along the capillary, thus the performance of the insulating
material decreases significantly. The insulation
treatment will make the surface of the windings and coils form a
smooth, pinless film or insulation seal
layer, which will greatly reduce the invasion of moisture and
improve the moistureproof performance of the
motor.
2. Improve the heat resistance of motor insulation
Motor insulation materials in an insulating impregnating varnish
before the material after heating the
internal decomposition of gas water molecules of low molecular
substances, accompanied by oxidation,
changes in material properties such as mechanical strength,
moisture resistance, reduce the decline of
brittle materials, have electrical properties such as insulation
resistance and breakdown voltage
decreased, this phenomenon known as the aging of insulation
materials, insulation insulation contact area
but after the treatment of material and air is greatly reduced, the
rate of oxidation is greatly reduced, in
the same service life, the use of the temperature of the motor can
be improved. Therefore, the heat
resistance of the motor insulation is improved.
3. Improve the thermal conductivity of the motor
The electrical insulation layer of air gap large, while the thermal
conductivity of the air gap is low, the air
gap is filled with dipping paint, varnish and perfusion ratio due
to thermal conductivity of air gap, so the
electrical winding motor and a corresponding increase in the
conduction of heat, will greatly reduce the
motor temperature rise. The experimental data show that the
temperature rise can be reduced by 10-
20%.
4. Improve electrical and mechanical properties of motor insulation
The motor winding coil and the insulation treatment, winding and
Core Bond into a solid whole film will void
windings and the notch is full, the insulating layer is formed in a
certain thickness of winding end of the
head, there is no gap inside the water is not easy to enter, so the
insulation resistance and breakdown
voltage are improved, and at the same time winding core non
relative movement, have sufficient strength
to resist the external vibration and stress, and bear the motor
assembly process of mechanical impact,
thus avoiding the mechanical action of damage.
The motor windings impregnated after winding insulation system and
the core to form a solid whole
reduces the effects of mechanical vibration and electromagnetic
force vibration generated by the motor
during operation, the reinforcement effect on the machine, avoid
wire between the wire and the core or
tank wall due to vibration, friction and damage the insulation
displacement loose structure. The organic
insulation material inside the motor not only improves heat
resistance and electrical performance, but also
improves the mechanical strength of the insulation material itself
after impregnation. Because the
insulating material is heated, the material will change, releasing
gas, water and carbonaceous materials,
lose flexibility, but after impregnation, pyrolysis, under heat
hydrolysis process can greatly retard
mechanical flexibility material to maintain long-term, while
insulating paint formed by the paint film has
certain elasticity and adhesion in the hot state, the material
between the binding force of strengthening,
forming a strong overall, greatly enhance the strength of the
system.
5. Improve chemical corrosion resistance
The motor through the impregnation treatment, to prevent all kinds
of insulation materials and solvent
around the motor and direct contact with corrosive chemicals, which
can improve the stability of chemical
substances of the motor due to the insulating encapsulation, shut
off from the world body contact, improve
the winding stability, selecting suitable varnish resin materials
can make the winding insulation with anti
mildew, anti oil, anti corona, flame retardant performance.
Parameter:
Working position: 60*2
Position pitch: 152.4mm
Heating time: ≤45 min
Tunnel working temperature: 0 to150 ℃
Pitch time: 0-10min adjustable
Power consumption: 36 KW
Dimension: 6.2*1.15*2.1
Weight:Around 4.2 Ton
Production capability: 700pcs/8 hours
