HUATEC HG904 User Manual Download Page 37 | Manualshive

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HUATEC HG904 User Manual Download Page 37

HUATEC Group Corporation www.huatecgroup.com

P a g e 3 6 o f 3 7

APPENDIX

BALANCE GRADE OF RIGID ROTORS

(Abstracted from ISO 1940/1-1986 Requirement of balance grade of rigid rotors

—

machine vibration)

Balance

grade

G

(mm/s)

Examples of the rotor type

G4000

4000

Rigidly fixed crooked-axis transmission set of low-RPM diesel engine, with odd amount
of gases, specially used for ship

G1600

1600

Rigidly fixed crooked-axis transmission set of great 2-stroke engine.

G630

630

Rigidly fixed crooked-axis transmission set of great 4-stroke engine
Flexibly fixed crooked-axis transmission set of diesel engine specially used for ship

G250

250

Rigidly fixed crooked-axis transmission set of high-RPM 4-gas diesel engine.

G100

100

Crooked-axis transmission set of high-RPM diesel engine with 6 or more gases
The whole engine of a truck or an auto (diesel or gas engine)

G40

40

Wheels, flange, transmission axis of an auto

Flexibly fixed crooked-axis transmission set of high-RPM 4-stroke engine with 6 or more
gases

Crooked-axis transmission set of an auto, a truck

G16

16

Transmission axes with special requirements (axle-rotating axes, all-way axes)
Parts of crusher
Parts of agricultural machine
Engines of auto, truck and locomotive (the whole of diesel or gas engine)
Crooked-axes transmission set of provider with 6 or more gases under special conditions.

G6.3

6.3

Parts of master engine
Tub wheel of centrifugal machine
Roller of paper-machine, roller of presswork
Fan
Rotor of assembled aviation turbo line
Flywheel
Pump wheel
Parts of lathe and general mechanical

General or great armature without special requirements (the height of electricity’s axes

center is at most 80mm)
Small armature which is often yielded a great deal and used under the conditions of not
being sensitive to vibration or there is sets for isolate vibration. The whole of a engine
with special demands.

G2.5

2.5

Rigid rotor of turbine generator
Disks and drums of a computer
Turbo compressor
Transmission set of a lathe
General or great armature with special demands

G1

1

Transmission set of tape recorder and gramophone (photograph)
Transmission set of grinding machine.
Small armature with special demands

G0.4

0.4

Main axes, grinding wheel and armature of a precise grinding machine
Gyroscope

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Summary of Contents for HG904

Page 1: ...rocessor Based On site Balancer Spectrum Analyzer Vibration Data Collector E mail export huatecgroup com Fax 8610 82916893 Tel 8610 82921131 Address Rm 730 Chengyuan Building the Mid Road of Jiancaich...

Page 2: ...orporation Copyright 2001 by Beijing HUATEC Group Corporation All rights reserved The information provided in this Manual is believed to be reliable However HUATEC Group Corporation no responsibility...

Page 3: ...TER 3 BALANCING PREPARATION 7 CHAPTER 4 BALANCING OPERATIONS 8 1 plane balancing 8 without influence coefficients 8 with influence coefficients 13 2 planes balancing 15 without influence coefficients...

Page 4: ...esult are shown clearly at a glance Storage of 10 rotors balancing data Selectable of trial mass remove or remain Decompose of balancing result to two assigned location Trial weight range calculated a...

Page 5: ...mensions 21 13 4 cm Weight 1 2 kg Include batteries 2 BALANCE PRINCIPLES 2 1 What is 1 plane rotor imbalance Rigid rotor works under the speed far less than its first order critical rotate speed and i...

Page 6: ...alance When doing 2 planes dynamic balance two planes of adding mass and two points of vibration measure are needed HG904 s 2 planes dynamic balance also adopts the method of influence coefficient But...

Page 7: ...HUATEC Group Corporation www huatecgroup com Page 6 of 37 1 Plane balancing...

Page 8: ...HUATEC Group Corporation www huatecgroup com Page 7 of 37 2 Plane balancing...

Page 9: ...of the rotor or its axis Photoelectric sensor can give HG904 1 electric pulse per turn of the running rotor Not only the rotate speed can be measured but also the vibration signals can be compared wit...

Page 10: ...key to move the cursor between lines on the left the following are the same Line 2 on the left To set parameters the note displays Enter Menu Key press MENU to right to set parameters Line 2 on the r...

Page 11: ...R then choose YES and press ENTER to erase the rotor datas displayed the measured data will be cleared the balance grade and the sensor sensitivities will change to default values at the same time suc...

Page 12: ...ing to the calculation and then restart the machine Step 3 Initial measurement Line 5 on the left The note displays Enter Menu Key Press MENU to right Line 2 on the right All the places showing values...

Page 13: ...he note displays Enter to Measure Press ENTER to measure the rotation speed The RPM value on the right side of the 6th line will update continually And Amplitude Phase is shown in the 5th line When th...

Page 14: ...e vector of balancing mass can be found in the vector graph just on the circle Then find two proper angles at each side of the vector of balancing mass Line 2 on the right The note displays Input Angl...

Page 15: ...ally And Amplitude Phase is shown in the 2nd line When the rotation speed becomes stable press ENTER for a moment the HG904 begins measuring vibration The data in the 3rd line rotation speed and in th...

Page 16: ...same as 1 plane balancing without influence coefficients Line 3 on the right The note displays Enter to See Coeffient Press ENTER to Coeffient page to input influence coefficients The method of input...

Page 17: ...he same as 1 plane balancing without influence coefficients Step 6 verification The operation of lines is the same as 1 plane balancing without influence coefficients 4 2 2 PLANES BALANCING Illustrati...

Page 18: ...If you hope to see some measurement move the cursor to there and then the value is displayed You can also input the value The method of input numbers is the same as above Rotation Speed is shown in th...

Page 19: ...shown in the 5th line When the cursor is in the 5th line the note displays Enter to Measure Press ENTER to measure the rotation speed The RPM value on the right side of the 6th line will update conti...

Page 20: ...displays Enter to Measure Press ENTER to measure the rotation speed The RPM value on the right side of the 6th line will update continually And Amplitude Phase is shown in the 5th line When the rotati...

Page 21: ...ys Enter Menu Key Press MENU to right Firstly the vector of balancing mass can be found in the vector graph just on the circle Then find two proper angles at each side of the vector of balancing mass...

Page 22: ...an also input the value The method of input numbers is the same as above Rotation Speed is shown in the 2nd line When the cursor is in the 2nd line the note displays Enter to Measure Press ENTER to me...

Page 23: ...itial measurement The operation of lines is the same as 2 plane balancing without influence coefficients Step 3 Input influence coefficients The operation of lines is the same as 1 plane balancing wit...

Page 24: ...t and the vibration signal is recorded only when the trigger impulse signal appears Different from the Free shot user can get position related information Furthermore you can measure rotate speed and...

Page 25: ...cy range and fidelity Hold the probe lowest precision frequency range and fidelity 5 When collecting data or waveforms the user should check up if every parameter is correctly set and if the sensors a...

Page 26: ...n of overall vibration value may be briefly explained as DIS Displace Equivalent Peak to peak value the maximum vibrating distance between the positive amplitude and the negative one of the vibration...

Page 27: ...ing 100Hz 200Hz 500Hz 1000Hz 2000Hz 5000Hz 10000Hz Use or to move cursor to the 3rd line then modify it by or 1 4 Set the sensitivity of the sensor Different accelerometer has different sensitivities...

Page 28: ...of new and old data is valid only when a new measurement has been taken and you have not changed the point name to another 1 6 Measurement Firstly fix the accelerometer to measurement location and co...

Page 29: ...or example the pressure of lubricating oil and the temperature of bearing reflect the state a bearing and influence the vibration of a machine The high temperature of motor winding usually indicates s...

Page 30: ...ten vague observation code options 0 Ok 1 Not In Use 2 Seal Leaking 3 Much Noise 4 Oil Level Low 5 Very Hot 6 Bear Changed 7 Seal Changed 8 Pre Flow Low 9 Other States At the place behind Note select...

Page 31: ...s chosen you must really have trigger signal Otherwise the instrument will always wait for triggering before collecting until you power off it Notice Switch the Inner External Trigger Switch to Extern...

Page 32: ...alarm multiple factor will be reset to the default value 5 00 and 3 00 The screen will return to the menu of Collector The last line is Auto Range or Man R Manual Range Man R means you may manually c...

Page 33: ...veform and displays the waveform continuously The display is as the following graph You may press In for a while to stop the measurement and the refresh of waveform display Then you may press or to se...

Page 34: ...hes the biggest number it will return to the smallest in circles 8 Spectrum Analysis Once a waveform is measured you may analyze the frequency spectrum at once by press W Spect If you just recall a wa...

Page 35: ...the light reflected from a piece of reflecting paper on the rotating axis The measuring method is as the following 1 Connect the photoelectric tacho sensor with HG904 and make the lighting end of the...

Page 36: ...change to another point Because the new data and the old data reference value or alarming value occupy the same space of memory the old data will lose after you saved the new one Press W Save to save...

Page 37: ...of an auto a truck G16 16 Transmission axes with special requirements axle rotating axes all way axes Parts of crusher Parts of agricultural machine Engines of auto truck and locomotive the whole of...

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