Basic Info.
Model NO.
VALENIAN-PT600C
Customized
Non-Customized
Product Description
High end model for training high speed rotor dynamicsVALENIAN Teaching equipment
It is an experimental machine vibration / gear box simulator designed to learn various common mechanical defects and gearbox problem like the failure of wind turbine rotating with high and low speed at the same time.Engineers in charge of facility diagnosis can use this simulator for the cause of vibration and measurement method, technique to detect mechanical defect, study of vibration pattern in case of machine failure, and ability to search for the solution of gear vibration problem. Especially, it is suitable for use as a laboratory tool for training vibration experts in vibration training institutes, or for academic researcher for deep research on low speed bearing defects and gear box defects in wind turbines.| • Practice of vibration measurement | • Time waveform, frequency analysis |
| • Best selection of vibration pickups | • Phase measurement, application of RPM pulse signal |
| • Effects of mass unbalance | • 1 plane & 2plane balancing |
| • Effects of shaft misalignment | • Practice of multi-stage shaft alignment |
| • Correction of soft foot | • Run-up and coast-down test |
| • Study of shaft critical speed | • MODAL analysis, ODS measurement |
| • Study of bearing failure | • Waveform & frequency pattern of fault bearing |
| • Analysis of gear failure | • Effect of gear back lash |
| • Analysis of helical gear problem | • Oil analysis & Particle analysis |
| • Vibration analysis of slow speed machine | • Study for detecting failure of slow speed fault bearing |
| • Practice of machine condition monitoring | |
- Rotor Assembly
The inboard and outboard housings are equipped with two bearings and support a shaft with two rotors mounted in the center. Installed bearings are good bearings. To replace with a defective bearing as required, user can completely disassemble the rotor assembly and easily exchange it with a defective bearing on the inboard or outboard bearing. Defect bearings can be ordered as the selection of option. 2.1 RotorTwo M6-36 type rotors are installed in center hung for learning upto two plane balancing. Different rotor discs may be installed and supplied according to the specifications when ordering.The rotor disk has 2 rows of 18 screw holes each for M6 on same circumference. Diameter d1=140mm, at 20° intervals 18 holesd2=120mm, at 20° intervals 18 holesEach diameter d1 and d2 holes are arranged against each other so that there is a difference of 10°, in order to attach a corrective mass to almost exact angle for more precise corrective work when balancing. User can count at a glance the angle of the mass by the line marked at intervals of 90°.To avoid the risk of contact damage during rotation, one side of the rotor is designed to be concave so that the screw heads for unbalance and balance mass do not stick out the rotor surface.2.2 Bearing unitThe bearing unit consists of bearing housing and a bearing of which the height is 80mm and an inner diameter is 25mm and has 4 x1/4-28 UNF holes for installing the vibration sensor. It is made of cast steel which can attach vibration sensor by using magnet. It can be used by replacing spherical bearing.The base plate is equipped with several holes to adjust the spacing between the two bearing housings, allowing the user to arbitrarily adjust the span between the rotor assemblies. 2.3 Fault bearingIf stresses due to machine defects (unbalance, misalignment) are concentrated in the bearing, bearing fault can cause fatal defects in the machine and can seriously damage production and profit. Therefore, it is very important for the mechanical engineer to understand the vibration phenomenon caused by bearing defects.It is fundamental to investigate the vibration phenomenon caused by defects by inserting controlled defects one by one in the machine.We supply the optional defective bearing units for testing by exchanging normal bearings to fault bearings - Gear drive train
The gear drive train consists of a gear box, a low-speed bearing unit and a brake.3.1 Parallel gear boxThe parallel gear box has a two-stage structure as shown below, and the M2.5 size spur gear and faulty gear are assembled in the gearbox at the same time, so it can be tested by sliding easily between good gear and defect gear. The standard set is supplied as a spur gear box, and a helical gear box can be ordered with the same structure.<Gear configuration>The standard gearbox has the ratio of 4.97:1 consisting of two gears that each having 58:25 and 60:28 teeth. Especially, gears with broken teeth and chipped teeth are assembled together. It is possible to change from normal gear to abnormal gear by simply sliding the normal gear to defective gear.The gear module M2.5, M2.0 and M1.5 can be used in the gear box. The ratio can be changed with the combination of gear module; the gear high ratio can be achieved with fine gear module M1.5, the lower ratios with big gear M2.5 module.Standard spur gear specification is: Parallel axis 2nd gearbox, Spur gear input angle 20° Module 2.5Gear ratio: 1: 4.97 (1st stage:25/58, 2nd stage:28/58)Gear box contains oil as a standard. Oil circulating system can be ordered3.2 Bearing unit for low speed Bearing unit is designed for easy installation of defect bearing by unscrewed the bolts of bearing housing and slide to left or right side as the good and defective bearing are installed together. Such a design minimizes the variation in the boundary conditions of the system that may occur during the exchange of good bearing to fault bearing, thus comparing only the vibration signals resulting from the defective condition and also saving time.A normal bearing and/or inner race defect and/or outer race defect bearing can be installed on the bearing pedestal, otherwise stated one normal bearing and one inner race fault bearing is installed as standard.<Fault bearings available>The type of bearing installed is a typical model for unit bearing UC206 and has an inter diameter of 30mm. If the different types of bearings are needed, you may consult when ordered the simulator.- Inner race fault bearing(FBI-30)
It's marked " I " in English at the bearing ring and there is a hole of 1mm or 0.3mm crack at the inner race. Fault Frequency: 5.43 X- Outer race fault bearing(FBO-30)
It's marked " O " in English at the bearing ring and there is a hole of 1mm or 0.3mm crack at the outer race. Fault frequency: 3.57 X- Combined fault bearing(FBC-30)
It's marked " C " in English at the bearing race. It has the defective type which is artificially made to have a ball mark on the outer race and on the inner race.- Cage fault bearing (FBT-30)
It's marked " T " in English at the bearing race. The cage frequency or fundamental train frequency is the rotational speed of the ball or roller cage assembly. It is a defect bearing that reproduces the phenomenon that artificially inserting a defect into the cage causes low frequency modulation in bearing vibration.Fault frequency: 0.397 x3.3 Magnetic powder brakeThe gear vibration signal varies greatly depending on the load. Even if there is a fault, it is very difficult to detect the fault without load. So the brake is connected on the drive train to allow the driving torque to change from no-load to more than 50Nm, and the gear can be tested with an arbitrary load.The adjustment of the magnetic brake can be controlled by the power supply on the front panel. If excessive braking is used, the motor may stop rotating, so slowly increase the load while watching the gear operation. Also, if excessive braking is applied when starting the motor, the motor inrush current may be too high to overheat the motor. In severe cases, the motor may not start, so make sure that the brake voltage is 0V when starting the motor4. Digital Tachometer and RPM display Two tacho sensors are installed to detect the input and the output shaft speed. The number of revolutions is indicated in RPM or Hertz 20times per second, and the number of revolutions can be changed continuously by using the RPM adjustment knob. The Tacho pulse signal can be obtained by two optical fiber sensors are installed on the base plate and the Tacho signal of one pulse/rotation can be output to the BNC terminal without being disturbed by the rotation of the rotor, and can be used as a synchronization signal to the signal analyzer. Therefore, it is not necessary to install additional infrared sensor during balancing, and this signal can be used for phase measurement. The control panel has two 7-segment LED displays to display the RPM in real time with the rate of 20 times per second. 5. Load adjustment deviceAs the magnitude of the gear mesh frequency component in the gear is highly influenced by the load, it is necessary to analyze the gears at some level of the same load in order to detect a gear failure by the vibration signal. Load adjustment device has the function that can adjust the brake torque in eight steps from 0 to 50Nm by voltage control. Load On/Off switch is for temporarily remove the load during testing, and to turn the load on and off again for testing with the same load.
Address:
Suzhou, Jiangsu, China
Business Type:
Manufacturer/Factory
Business Range:
Industrial Equipment & Components, Instruments & Meters, Manufacturing & Processing Machinery, Office Supplies, Tools & Hardware
Company Introduction:
Founded in 2013, KUN SHAN HOJOLO TECHNOLOGIES Co., Ltd is an intelligent operation and maintenance enterprise integrating R&D, sales, technical services, and equipment leasing. It is a competitive supplier in the field of global industrial condition monitoring instruments and equipment.
In addition to its own research and development, HOJOLO also integrates the world′s most advanced intelligent operation and maintenance condition monitoring products. At present, the main product categories include vibration monitoring, steam trap detection, dynamic balancing detection, electrical fault detection, ultrasonic leakage detection, spindle alignment detection, infrared thermal imaging detection, oil analysis detection, mechanical fault simulation bench, data acquisition and analysis system. The products are mainly used in many industries such as petroleum, chemical, electric power, papermaking, manufacturing, steel, electronics, military, universities, and biopharmaceuticals. Machinery Fault Simulator Micro Version, Machine Vibration Simulator, Vibration Analyzer.
