YFW-20000 THE HARD BEARING BALANCER
1.
Overview
With
the development of modern industry, the precision and
high speed of rotating machinery make the problem of
eliminating machine vibration become more and more
important. For the rotating machinery (such as motor,
blower, diesel engine, automobile, airplane), the
vibration of rotating parts will directly affect To the
efficiency of the machine, machine life and personal
safety, and dynamic imbalance is one of the main reasons
for vibration generated by rotating machinery, so in
order to effectively solve the problem of machine
vibration, the rotating body (hereinafter referred to as
the rotor) One of the indispensable process measures.
It
has many advantages, such as high efficiency, simple
operation, intuitive display, rapid measurement and good
stability. It is a kind of advanced dynamic balancing
machine. It is a new type of balancing machine.
Equipment, for a variety of rotating parts of the
dynamic balance check, so this series of balancing
machines become more and more popular with users of
products.
YFW-20000 fan impeller balancing machine is designed for
the fan manufacturing industry, a balanced machine. The
machine is designed for horizontal, hard support,
universal joint drive, digital form display and other
common forms. The machine has the following
characteristics:
A: The
measuring system can read the weight (light or weight)
in kilograms or grams directly, and the phase (degree)
in digital display mode. Also has unbalanced memory and
measurement system self-test function.
B: The
measurement system uses a novel electrical measuring
circuit and a reasonable structure layout. All of the
linear and digital integrated circuits are the
international common domestic production of dual in-line
package of the standard series, data transmission relay
program-controlled switches with relays, high
reliability, easy maintenance.
C: The
core circuit of the electrical measuring box is a
tracking type band-pass correlation filter, with good
filtering and frequency tracking performance. As a
result of the automatic bandwidth switching circuit, a
reasonable solution to the electrical box response to
the rapidity and stability of the contradiction between
the electrical measuring box with excellent low-speed
performance.
D: The
user can choose the printer, to achieve real-time print
balance results.
E: The
machine electromechanical transducer device using
piezoelectric sensors, because there is no mechanical
movement, so the failure rate is very low, and low-speed
performance (the machine minimum speed of up to 80 r /
min).
F: In
addition to the characteristics of a general-purpose
horizontal hard-bearing balancing machine, but also
specifically for the balance of fan impeller
characteristics given two important parameters. First,
the maximum balance of the rotor diameter 4200 mm (42
fan impeller); Second, the maximum rotor mass of 20,000
kg, to ensure maximum sensitivity to detect the vast
majority of the size of the impeller applicable to the
machine.
G: Low
speed performance. The minimum working speed of 80 r /
min. Energy saving, safety.
2. The
basic parameters and the main technical performance
indicators
2.1
Operating Parameters:
2.1.1
workpiece quality range of 1000 ~ 20'000 kg
2.1.2
The occasional overloading gravity of each support may
be up to 15'000 kg
2.1.3
The maximum diameter of the workpiece 4'200 mm
2.1.4
workpiece support journal range 90 ~ 320 mm
2.1.6
Maximum support length 7'900 mm
2.1.7
Motor parameters The maximum speed of 1480 r / min (FM
speed) 100 KW
2.1.8
balanced working speed sub-file stepless speed (gearbox
matching frequency speed motor): 80 ~ 1000 r / min
2.1.9
working speed of the balancing machine selection
The choice of balancing speed and workpiece
quality, diameter, motor drag power, bearing capacity
and the rotor bearing resistance and so on.
The machine's two speed limit parameters are:
A: GN2≦1.6 x 109 (Kg / min2)
B: (GD2) NA ≦ 1.5 ╳ 109 (Kg.m2 / min2)
C: fan rotor wind resistance limit value N2 ≤ (P /
A) ╳ (n3 / q) (1 / min2)
A new generation of mechanical overload capacity
higher, this figure on the previous generation.
YFW-16000
THE HARD BEARING BALANCER
SPECIFICATION
1.
Mass of workpieces:…………… 500kg -16000(16 ton)
2. Max.diameter of workpieces: ……………… Φ4100 mm
3. Balancing speed: …………………………110-1000 rpm
4. Min.achievable residual unbalance(emar):… 2g.mm/kg
5. Unbalance reduction ratio(URR)………………… 85%
6.Motor rating: ……………………75kw(vvvf inverter)
