Automatic Armature Roll and Dipping Impregnation Varnish Insulation
Machine WIND-ZDG
Application and Purpose
For series excited motor rotor,vacuum cleaner motor, starting motor
motorcycle,automobile starting
motor,treadmill motor and so on varnish insulation.
1. The trickle polyester impregnation resin varnish method is to
compact the armature,
make it smart and not easy to disassemble.
2. The motor coil must be impregnated with insulating varnish and
its adjacent parts.
3. Let the conductor wire, slot insulation isolation parts whole
compacted and immerged with
insulating resin coating become strong overall density.
Operation Process
Operator loads armatures on machine, machine will move
automatically, pass the process
loading, preheating, air cooling , trickling (2 points to do
trickling on armature by its both end at winding),
flat flowing,colloidizing & postcuring, air cooling.
Simple varnish collection trays do the remaining varnish
collecting.
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
Machine design related facors
| |
The armature OD
|
Armature OD related to machine chain pitch
|
Shaft length
|
Shaft length is related to trickle machine width
|
Varnish curing temperature time(minutes)
|
Related to cycle time
|
Output requirement
|
How many pieces in 8 hours
|
The armature OD, shaft length, varnish curing temperature
time(minutes)
Output requirement(pcs in 8 hours) are important factors in varnish
machine design and building,
Armature weight is not critical and in theory the standard machine
can handle armature below 5KGS,
Armature OD is related to trickling varnish machine's chain pitch,
and the armature shaft length is related
to rolling and dipping machine's width, the Max weight is related
to rotation axis' shaft diameter.
For the curing time, in China's motor manufacturing plant, there is
30 minutes, 60 mintues,90minutes,
calculatin by a 60 working station , 80 working station (5meters to
6 meters), 30 minutes curing time, 2
hours the first cycle, then 1 hour / cycle, in this way we can
calculate the output.
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: 200*2
Position pitch: 63
Heating time: ≤45 min
Tunnel working temperature: 0~160 ℃
Pitch time: 0-10min adjustable
Power consumption: 36 KW
Dimension: 6.4*1.6*2.1
Weight:Around 4.2 Ton
Production capability: 1200pcs/8 hours
