1. Trang chủ
  2. » Kỹ Thuật - Công Nghệ

Handbook of Shaft Alignment Part 10 pptx

50 422 0

Đang tải... (xem toàn văn)

Tài liệu hạn chế xem trước, để xem đầy đủ mời bạn chọn Tải xuống

THÔNG TIN TÀI LIỆU

Thông tin cơ bản

Tiêu đề Handbook of Shaft Alignment Part 10 pptx
Trường học University of Technology, Sweden
Chuyên ngành Mechanical Engineering
Thể loại Shaft Alignment Handbook
Năm xuất bản 2006
Thành phố Unknown
Định dạng
Số trang 50
Dung lượng 576,76 KB

Các công cụ chuyển đổi và chỉnh sửa cho tài liệu này

Nội dung

features of the Shaft 100 system but also includes: alignment of offset mounted equipmentCardan=U-joint driven machinery, alignment of multiple element drive systems, can be usedfor meas

Trang 1

features of the Shaft 100 system but also includes: alignment of offset mounted equipment(Cardan=U-joint driven machinery), alignment of multiple element drive systems, can be usedfor measuring as well as entering OL2R movement information, two magnetic bases, and asystem printer.

Shaft 30 system cost: $9995.00

Shaft 100 system cost: $15500.00

Shaft 200 system cost: not supplied

Manufacturer’s Web site: http:==www.fixturlaser.com=

The operating principle of the Hamar laser alignment systems is based on a single laser, dualdetector using a beam splitter as shown in Figure 15.4 A bracket is attached to each shaft.The laser is attached to one of the brackets and the detector target to the other bracket Theoperator then positions the laser and detector assemblies to center the beam in the detectortarget area

The Model S-640 system is shown in Figure 15.12 The detector target output is connected

to a computer interface module (Model R-358) via a cable, which is then connected to alaptop computer via the serial communications port An alignment software program sup-plied with the system is loaded into your laptop computer and the software prompts the userthrough the alignment process

The Model S-650 system is shown in Figure 15.13 The detector target output is transmittedvia infrared data transmission to a receiver–computer interface module (Model A-908), which

FIGURE 15.11 Shaft 200 system (Courtesy of FixturLaser, Molndal, Sweden With permission.)

Trang 2

15.2.6 PRU¨FTECHNIKSYSTEMS

The first useable laser shaft alignment system was introduced by Pru¨ftechnik in 1984 Theoperating principle of this system is shown in Figure 15.2 where a single laser, mounted onone shaft, is aimed at a roof prism, mounted on the other shaft, which reflects the beamdirectly back toward its point of origin but offsets the beam a specified distance so the laser

FIGURE 15.12 Model S-640 (Courtesy of Hamar Laser Instrument Co., Danbury, CT With permission.)

Trang 3

can strike onto the surface of the photodetector target After attaching the brackets to eachshaft, the operator installs the laser–detector head onto one of the brackets and the roof prismonto the other bracket Using the display and keypad, the operator enters information aboutthe drive system being aligned and once the laser beam starts operating, the operator adjuststhe position of the roof prism to center the returning laser beam onto the photodiode target.The operator then proceeds through the instructions prompted via the display and keypad tocapture the shaft positions.

The first Optalign system incorporated an infrared laser (not visible to the naked eye) but asvisible lasers became available, they were incorporated into subsequent models

The Pocketalign system is shown in Figure 15.14 This system utilizes a personal digitalassistant (PDA) for the operator and keypad The PDA operating system requires MicrosoftMobile 2003 and a CF II interface card is required It uses the same laser–detector head asthe Smartalign system The PDA can be purchased through the manufacturer or you canbuy your own Communication cabling is provided to transfer files from the PDA to apersonal computer for file archiving Continuous sweep measurement mode software can

be purchased separately

The Optalign Plus system as shown in Figure 15.15, now in its fourth generation, has beenthe workhorse of their product line The operational software is imbedded into the laser–detector sensor assembly, not the operator keypad and display It is offered in two basicconfigurations, the ‘‘Entry Level’’ model and the ‘‘All Features’’ model This system is alsofully configurable with the exact features and functions the user desires, ‘‘a` la carte.’’

FIGURE 15.14 Pocketalign system (Courtesy of Pru¨ftechnik, Ismaning, Germany With permission.)

Trang 4

save either 25 or 99 files, enter both vertical and horizontal target specifications and thermalgrowth data, vertical shaft alignment, multipoint measurement mode, alignment of spacershafts, machinery with 6 ft, ‘‘static feet’’ function for bolt-bound or base-bound machines,alignment tolerances, and extended measurement range (known as InfiniRange).

Optalign Plus Entry Level system cost: $6600.00

Optalign Plus Intrinsically Safe Entry Level system cost: $10575.00

Optalign Plus All Features system cost: $13500.00

Optalign Plus Intrinsically Safe All Features system cost: $16875.00

Manufacturer’s Web site: http:==www.pruftechnik.com=

The Smartalign system is shown in Figure 15.16 The laser–detector transducer visuallylooks the same as the Optalign Plus where the operational software is actually imbedded inthe transducer In the case of the Smartalign system, the operational software is actuallyimbedded in the operator keypad and display The system comes with: the laser–detectortransducer, the prism, an operator keypad–display, a 6 ft (2 m) cable, brackets for clampingonto shaft up to 8.5 in in diameter, 20 different posts of various lengths for attaching thelaser–detector and prism to the brackets, ‘‘smartREADER1

’’ software, a computer cable and

FIGURE 15.15 Optalign Plus system (Courtesy of Pru¨ftechnik, Ismaning, Germany With permission.)

Trang 5

20 different posts of various lengths for attaching the laser–detector and prism to the brackets,beam adjustment tube, a computer cable and adapter, tape measure, manual, cleaning cloth,protective covers, and a carrying case The basic software of this multifunction device enablesone to align horizontally or vertically mounted machinery, coupled or uncoupled shafts,alignment of multiple element drive systems, soft foot detection, target specifications andthermal growth entry for all machines in the train, infrared data transmission to computer,and U-joint (Cardan shaft) alignment Additional software packages enables alignment ofmachinery bores (Boralign) and straightness and flatness (Levalign) measurement.

Rotalign Pro system cost: $18900.00

Rotalign Pro Intrinsically Safe system cost: $23700.00

Boralign add-on package cost: $8500.00

Boralign Long Range upgrade package cost: $6969.00

The LineLazer system is based on the reverse indicator method and uses a dual beam–dual

FIGURE 15.16 Smartalign system (Courtesy of Pru¨ftechnik, Ismaning, Germany With permission.)

Trang 6

and centers each beam Inclinometers are incorporated into the heads to measure the angularposition of the shafts A wireless transmission sends the detector signals to the operatordisplay The operator then rotates the shafts to capture the shaft positions Once themeasurement process has been completed, the user then obtains the corrective moves forthe machine selected as the movable machine.

LineLazer system cost: US$5500.00 (does not include the cost of the Leonova interfacesystem)

Manufacturer’s Web site: http:==www.spminstrument.com=

Trang 7

15.3 LASER SYSTEM MANUFACTURERS HARDWARE SPECIFICATIONS

A questionnaire was sent out to all of the above manufacturers concerning the pricing,specifications, and features of their systems The questions are listed below A summary oftheir answers is shown in Figure 15.21 through Figure 15.32

Laser shaft alignment system questionnaire

1 Are you a manufacturer of a laser shaft alignment system?

Yes

No

2 Are you a distributor of a laser shaft alignment system? If so, please list the manufacturer

of the laser shaft alignment system Please indicate the company, address, phone number,contact person, and Web site (if applicable) of the manufacturer If you are a distributoronly, skip the remaining questions

Distributor for:

Model #

FIGURE 15.18 Rotalign Ultra system (Courtesy of Pru¨ftechnik, Ismaning, Germany With permission.)

Trang 8

ZIP=Postal code _Country Phone # Fax # E-mail address _Web site Questions for the manufacturer of a laser shaft alignment system

3 Describe the basic operation of your laser measurement system Use drawings or diagrams

to enhance your explanation if possible

4 What is the overall weight of the entire system?

_ (pounds, kilograms) system weight

5 What is the price (or price range) of the system in U.S dollars?

_ (U.S dollars)

FIGURE 15.19 Leonova LineLazer system (Courtesy of SPM Instruments, Marlborough, CT Withpermission.)

Trang 9

7 If batteries are used, what sizes are required and how many are needed? Are the batteriesrechargeable?

Battery size and type Rechargeable

_ Not rechargeable

8 What battery life can be expected for continuous use on battery power?

_ (minutes, hours) expected battery life

9 Can the unit be plugged into AC electric supplies? Can it work on either 50 or 60 Hzcircuits and voltage ranges from 90 to 220 VAC?

_ pulse duration (inches, millimeters) beam diameter at exit

_ (inches, millimeters) beam diameter at 1 m

_ (inches, millimeters) beam diameter at 3 m

_ (inches, millimeters) beam diameter at 10 m

_ (milliwatts) power output

Safety precautions _

11 If you are using semiconductor junction diode lasers, which typically produce a

low-FIGURE 15.20 V180 system (Courtesy of Vibralign, Richmond, VA With permission.)

Trang 22

12 What effect does dirt, grease, oil, fingerprints, moisture, etc have on the laser collimatinglens or protective optics? If detrimental to the operation of the system, how should oneclean the laser optics?

13 What type of detector is used in your system and how does it work (photodiode, CCD,single or dual axis? detector target area, resolution, linearity, accuracy=repeatability,environmental limits, optical filtering, etc.)?

Detector type single axis photodiode

_ dual axis photodiode

_ (millimeters, inches) detector target area

_ (microns, inches) beam resolution

Linearity _Accuracy Repeatability _Environmental limits (suggested minimum and maximum air temperature, etc.)

_Optical filtering _Others _

14 What effect does dirt, grease, oil, fingerprints, moisture, etc have on the detector

or protective optics? If detrimental to the operation of the system, how should oneclean the detector?

Suggested cleaning procedure

15 Can the output from the detector be connected directly to a personal computer ically computer using Intel or Motorola processors)? If so, is interface software suppliedwith the system? Is there a charge for the software?

(specif- _ Yes, it can be connected to a personal computer

_ No, it cannot be connected to a personal computer

_ Yes, an interface device is supplied

_ No, an interface device is not supplied

_ Yes, interface software is supplied with the system

_ Yes, interface software is available for _ (U.S dollars)

_ No, interface software is not available

16 How are the data from the detectors transmitted to the computer–operator interface?Cables or wireless transmission? If cables are used, how long are they? Do the cables havequick disconnect-type fittings? If cables are used, what happens if an operator cannot

Trang 23

_ (inches, millimeters) optional cable length

_ quick connect fittings

_ rigid fittings

17 What type of shock protection is incorporated in your system to prevent damage to thelaser–detector? What happens if an operator drops the system from 6 ft?

18 Can the user store a shaft alignment job in the computer–operator interface? Can theystore more than one alignment job? If, so how many? Can the data stored in thealignment system be transferred to a personal computer? If so, how is this done? _ Yes, shaft alignment jobs can be stored

_ No, shaft alignment jobs cannot be stored

_ Number of alignment jobs that can be stored internally

_ Yes, shaft alignment jobs can be uploaded to a personal computer

_ No, shaft alignment jobs cannot be uploaded to a personal computer

19 If an operator mistakenly pressed the ‘‘OFF’’ button in the middle of an alignment job,what happens?

_ operator must start over

_ system returns to last point in process

_ others _

20 What type of thermal protection is incorporated in your system to prevent measurementdistortion?

21 What environmental limitations are on the system? For example, can it operate attemperatures above 1208F or below 08F? In outdoor applications, what effect does directsunlight have on the sensors? If the unit is operated near strong electromagnetic fields(e.g., motor windings, magnetic bases) is there any effect on the electronics that wouldaffect the accuracy of the instrument?

Environmental limits

Effect of direct sunlight

_Effect of strong magnetic fields

22 Do you offer an intrinsically safe or explosion proof models or both?

_ Yes

_ No

23 What type of environmental protection for the laser–detector is incorporated? Does it

Trang 24

24 If your system includes an operator interface–keypad entry device, describe the basicfunction of the device.

25 If a customer has more than one of your measurement systems in their possession, can theoperator interface modules and laser–detectors be interchanged or are the detectorsmatched to a specific operator interface? If they can be interchanged, explain why. _ Yes

_ No

26 Do the shafts have to be rotated together while capturing readings? If so, what amount

of rotational ‘‘backlash’’ between the two shafts can be tolerated before measurementaccuracy is sacrificed? If a rotational sensor is incorporated in your system, what is theminimum amount of angular rotation needed to determine the position of the shafts?What is the minimum recommended rotational angle for good repeatability andaccuracy?

_ Yes, the shafts must be rotated together

_ No, the shafts do not have to be rotated together

_ (angular degrees) allowable backlash

_ Yes, a rotational sensor is incorporated into the system

_ (angular degrees) minimum suggested rotation

_ No, the shafts do not have to be rotated together

27 How do you measure the rotational position of the sensors when capturing readings?

28 What are the minimum and maximum shaft diameters the brackets can be clamped to? _ (inches=millimeters) minimum shaft diameter

_ (inches=millimeters) maximum shaft diameter

29 What are the minimum and maximum height range that the laser or detector can beplaced from the point of contact on the shaft to the position of the laser or detector? _ (inches=millimeters) fixed height

_ (inches=millimeters) minimum height

_ (inches=millimeters) maximum height

30 Please complete the shaft alignment software questionnaire to describe the operation ofthe software that interfaces with your system

31 Can the sensors be reconfigured to capture OL2R machinery movement? If so, how is thisaccomplished?

_ Yes

_ No

Trang 25

Angular position of system is measured as follows:

33 Can the system be configured to enter English or metric units?

_ Yes

_ No

34 If your system is patented, please send a copy of the patent (in English) If you havepatents in other countries, please indicate where the patents are held and their corre-sponding patent numbers or identification

_

35 What is your warranty period?

_ (days, months, years)

36 What are the recommended calibration intervals, does the unit have to be sent back to thefactory for calibration, and what is the charge for recalibration? Is the calibration youoffer traceable back to U.S or International Standards?

_ (days, months, years) recommended calibration interval

Send back to factory?

_ Yes If yes, upgrade cost _ (U.S dollars)

_ No

39 What optional equipment or accessories are available for your system?

15.4 LASER SYSTEM MANUFACTURERS SOFTWARE SPECIFICATIONS

Ngày đăng: 11/08/2014, 07:23

TỪ KHÓA LIÊN QUAN