Special rotor balance process
low-speed rotor balance:
Cement mill wind machine rotor
Must have a larger drag power, low speed measurement capability of the
electrical measurement system, a relatively clean electromagnetic
environment. For example: large mineral mill rotor (diameter greater than 4
meters) and so on.
(Low speed balancing machine, 7 meters large diameter) low speed
balancing machine below 80 rev / min, large diameter balancing machine
Large-scale balance machine out of safety considerations, when used to
improve the operational safety considerations, do not shoot the forehead to
use, to be clear rotor operating parameters are not within the scope of
work! ! !
It's manual with a complete design parameter icon, it has more than one
parameter chart. These are the basics of how a technician using a balancing
machine must know it.
Features: Drive power to consider the user's rotor to determine the
specific circumstances, rather than ask the user how much power.
To get the user's maximum rotor parameters, balancing machine manufacturers
calculate how much drive power can meet the needs of the measurement.
Balancing machine drive power and measurement system has a
cross-parameter, that is, measuring speed, and drive speed.
If your measuring system starts measuring at 200 rpm then your drive system
will meet this requirement.
For example: A fan of 2000kw If the working speed is 500rpm, then it
runs to 200rpm when it is 128kw.
While 140rpm is 43.9kw
Therefore, a measurement system that can measure low speed is a
prerequisite for a large fan balancing machine.
1 drive power larger.
2 Measurement speed is low 80 rpm Start measurement
3 larger working diameter (fan features).
4 Heavy duty balancing machine (greater than 10 tons) must meet the maximum
contact pressure conditions of the workpiece axis (to meet the positive
pressure direction of the elastic working range, in order to avoid contact
with the surface fatigue damage). That is, the work of the wheel diameter
must be large enough to ensure that the contact area is large enough.
Otherwise it will hurt the customer's product axis (fatigue crush, crush
with plastic deformation).
5 Overload capacity larger (twice), the overall stiffness of the cast steel
measured, the linearity to maintain more than twice the maximum mass.
6 has a braking function, especially a large balancing machine. Large rotor
inertia parking will continue around 20 minutes. Braking function can be
within 1-3 minutes parking.
7 large-scale balancing machine with multi-stage gearbox (4-5 deceleration
of 6 times or more)
The company is located in:
fan rotor balance
Axial force generated when the fan rotor rotates, so the use of belt-driven
mode balance will produce axial force, the balance of interference difficult
to meet the requirements of precision. At the same time the efficiency of
the process is relatively low.
YYW-30-type balancing machine is the latest design and manufacture of a
high-efficiency small size balancing machine.
This machine is mainly to solve the problem of dynamic balance of small fan
to meet the production specifications of the factory.
The special small-size universal joint structure solves the problem of the
universal joint of the small rotor.
The company is located in:
Very small high-speed rotor balance:
Electro-measurement technology that requires very low electromagnetic noise,
as well as soft support small balance machines. Such as dental drill rotor,
small DC motor rotor and so on.
soft-bearing precision balancing machines
The measuring mechanism of this machine is the same as that of the
old-style soft support balancer, which is completely redesigned and improved
from mechanical structure and electrical measuring system, and the
durability of the machine is greatly improved.
Support: Soft support structure is simple, stable performance. The use of
speed sensor, no lateral sensitivity, less demanding on the limit, making
the operation requirements simple and quick. The structure is compact, solid
and reliable, and its mechanical model is reasonable. The actual imbalance
of the rotor can be truly reflected by the support frame and the sensor. And
this is exactly the most basic part to ensure the measurement accuracy of
the balance machine. Balance can be intuitive to use hand to feel the state.
Small rotor balance is more troublesome, soft support mode is the closest
operating mode, almost working speed measurement. Therefore, high-precision
balance is best to soft support mode.
In recent years, the market decline of the soft support balancer is due
to the high structural failure rate of the machine. Now we have designed an
ultra-low failure rate rack.
Some rotors can only be balanced on site, requiring a field balancer, as
well as a skilful operating experience of the field balancing process. For
example: Do not disassemble the fan rotor. Test Method Reference ------
Mechanical vibration reasons
Multi-section drive shaft balance:
Need to have multiple signal switching electrical measurement system, a
number of swing frame. Due to the advantages of big torque of face teeth,
many trucks now use such a structure of the drive shaft, but the end tooth
structure should not be consistent concentricity, so the use of a single
balance can not solve the balance of the problem, only imitation The balance
of their working conditions before they can solve the vibration, rotten
rubber sleeve (intermediate support bearing) problem.
Five pendulum four-axis coupling, which is to solve the "face gear drive
shaft" the only way to balance the issue.
High-speed rotor balance:
Need flexible balance technology, electrical measurement system using the
influence coefficient method to solve. For example: chemical industry with
Equivalent block rotor balance:
Need to have a multi-faceted electrical measurement system, at the same
time can be fixed vector solution. For example: engine crankshaft balancing
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+86 313 3175800
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