WO1994017496A1 - Verfahren zur überwachung und/oder feststellung des sich jeweils durch eine beanspruchung ändernden betriebszustandes einer elektrisch betriebenen kraftmaschine - Google Patents
Verfahren zur überwachung und/oder feststellung des sich jeweils durch eine beanspruchung ändernden betriebszustandes einer elektrisch betriebenen kraftmaschine Download PDFInfo
- Publication number
- WO1994017496A1 WO1994017496A1 PCT/CH1994/000004 CH9400004W WO9417496A1 WO 1994017496 A1 WO1994017496 A1 WO 1994017496A1 CH 9400004 W CH9400004 W CH 9400004W WO 9417496 A1 WO9417496 A1 WO 9417496A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wear
- engine
- degree
- contributions
- detected
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012544 monitoring process Methods 0.000 title claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000011156 evaluation Methods 0.000 claims description 4
- 238000011157 data evaluation Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3476—Load weighing or car passenger counting devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
Definitions
- the invention relates to a method for monitoring and / or determining the operating state of an electrically operated engine, which changes as a result of a load, by measuring one or more operating parameters.
- An engine lies, among other things, in achieving greater operational reliability with regard to product liability. This known type of detection of similar operating parameters is complex and inadequate to be able to obtain a binding result or to make a statement about the actual operating state and the further useful life or the life expectancy of an engine.
- this object is achieved in that the recorded operating parameters are transferred to an electronic, non-volatile memory module.
- This allows a more precise assessment of the operating state of an engine, both qualitative, for example a max. Operating temperature as well as quantitative, the duty cycle, operating parameters are recorded.
- the operating parameters affected include: in addition to the individual weight loads, the duty cycle during which the devices used for the method according to the invention are activated; the operating time during which an engine operates; the number of switching operations for driving an engine; the operating temperatures; the engine power of an engine, for example in the form of running times of individual power ranges.
- the method according to the invention proves to be particularly favorable when measuring stresses of a mechanical or physical type, in that the wear of the engine promoting, various influences recorded and added as wear contributions to corresponding degrees of wear, respectively. being transformed.
- the wear contributions can each be converted to a uniform degree of wear.
- the method according to the invention can advantageously be used when measuring individual weight loads, taking into account the duration of the load, these stresses being added up after conversion into a corresponding wear contribution, if further influences promoting the wear of the engine are detected and after conversion into a corresponding wear contribution the wear contributions which also determine the degree of wear due to the weight loads are added.
- the number of switching operations or cycles influencing the wear of the engine or the resulting switch-on and switch-off load moments can preferably be recorded.
- the conveying speed can be recorded as a value increasing the wear of the engine and can be taken into account when calculating the current wear contribution.
- the acceleration and / or deceleration of the drive movement can be recorded and added to the existing degrees of wear after conversion into a wear contribution or into wear contributions.
- the degree of wear of the engine can also be relative high ambient temperatures, the changeability and / or the heat generated by the energy supplied in the engine are noticeably influenced, so that their detection and recognition improves the objectivity of the degree of wear.
- the assessment of the degree of wear can optionally be based on the individual physical influences.
- the degree of wear achieved on the engine can expediently be compared and evaluated with a corresponding adjustable target value.
- a signal can advantageously be triggered if a wear level setpoint value or a certain wear contribution is exceeded.
- the degree of wear and its condition has proven to be suitable when determining the (still) expected service life of an engine.
- the evaluation of the wear contributions can be carried out on the electrical engine or at a distance therefrom, for example on a PC.
- a lifting device such as one Chain or cable hoist, a traveling crane or the like, a slewing crane or a monorail, a suspension crane, a lift or other conveyor devices overcoming / covering a load path or a processing machine, for example a drilling or grinding machine, an electric motor or a forklift , a wear contribution resulting therefrom can expediently be determined by measuring the effective electrical power on at least one winding of the drive motor.
- FIG. 1 shows a circuit diagram relating to the invention for an engine designed as a hoist
- FIG. 2 shows the degree of wear on the basis of determined wear contributions of a hoist according to FIG. 1.
- FIG. 1 shows an electrical control unit 1 which can be connected to a power source and to which switches 2, 3, 4 are assigned for actuating a lifting device 5. These switches 2, 3, 4 are intended for the functions of lifting, lowering and overdrive of a load 6 to be moved.
- a motor 7 Connected to the control unit 1 is a motor 7 which is electrically connected to it and which is coupled to a lifting gear 8.
- the switches 2, 3, 4 are nevertheless connected to a data acquisition device 9, in which the individual operating parameters are recorded in each case.
- One or more are connected to the data acquisition device 9 connected to the power line 10 leading from the control unit 1 to the motor 7 measuring lines 11, through which the power consumed by the motor 7 can be computed.
- a further connection 12 leads to the data acquisition device 9 in order to record the engine temperature.
- the data is transmitted from the data acquisition device 9 in order to a data evaluation device 14 and stored.
- the data evaluation device 14 and a so-called electronic, non-volatile memory module essentially consists of a microprocessor with a non-volatile memory. The received data are evaluated in the microprocessor and can be converted into a corresponding wear contribution and / or processed further.
- the further processing also provides the possibility that if the lifting device 5 or the motor 7 is overloaded, the control unit 1 is switched off via an emergency stop line 15 or the lifting device 5 is switched off.
- Output line 16 leads to a reading unit (not shown), for example a PC, which displays the data in a readable manner.
- FIG. 2 shows, in a simple exemplary manner, in a diagram various wear contributions resulting from physical influence on an engine. So u.a. the wear contributions are represented by the number of switching cycles according to line 17 and by the weight load according to line 18.
- the cumulatively recorded wear contributions are identified by line 19 for the degree of wear of the engine, which appears on the vertical coordinate axis, while the horizontal coordinate axis conveys the useful life of the engine. On the latter, sections a and b each show different times and stresses on an engine leading to wear contributions.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Escalators And Moving Walkways (AREA)
- Testing Of Engines (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/302,887 US5659468A (en) | 1993-01-19 | 1994-01-10 | Process for monitoring and/or detecting changes under load of the operating state of an electrical power machine |
EP94902592A EP0631681A1 (de) | 1993-01-19 | 1994-01-10 | Verfahren zur überwachung und/oder feststellung des sich jeweils durch eine beanspruchung ändernden betriebszustandes einer elektrisch betriebenen kraftmaschine |
JP6516530A JPH07506206A (ja) | 1993-01-19 | 1994-01-10 | 電気的に運転される原動機の負荷を加えて変わる運転状態を監視および/または確認する方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00148/93A CH687150A5 (de) | 1993-01-19 | 1993-01-19 | Verfahren zur Ueberwachung und/oder Feststellung des sich jeweils durch eine Beanspruchung aendernden Betriebszustandes einer elektrisch betriebenen Kraftmaschine. |
CH148/93-5 | 1993-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994017496A1 true WO1994017496A1 (de) | 1994-08-04 |
Family
ID=4180345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1994/000004 WO1994017496A1 (de) | 1993-01-19 | 1994-01-10 | Verfahren zur überwachung und/oder feststellung des sich jeweils durch eine beanspruchung ändernden betriebszustandes einer elektrisch betriebenen kraftmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US5659468A (de) |
EP (1) | EP0631681A1 (de) |
JP (1) | JPH07506206A (de) |
CH (1) | CH687150A5 (de) |
WO (1) | WO1994017496A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2324380B (en) * | 1997-04-19 | 2001-08-15 | Bosch Gmbh Robert | Acquisition device for operating magnitudes of electric motors |
EP2051213A1 (de) * | 2007-10-19 | 2009-04-22 | Siemens Aktiengesellschaft | Werkzeugmaschine, Produktionsmaschine und/oder Roboter |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6321208B1 (en) | 1995-04-19 | 2001-11-20 | Brightstreet.Com, Inc. | Method and system for electronic distribution of product redemption coupons |
US6002232A (en) | 1997-08-15 | 1999-12-14 | Iowa State University Research Foundation, Inc. | Robust vibration suppression methods and systems |
US6610917B2 (en) * | 1998-05-15 | 2003-08-26 | Lester F. Ludwig | Activity indication, external source, and processing loop provisions for driven vibrating-element environments |
LU90840B1 (en) * | 2001-09-25 | 2003-03-26 | Delphi Tech Inc | Method for controlling the operation of a system sub-system or component |
US7063306B2 (en) * | 2003-10-01 | 2006-06-20 | Paccar Inc | Electronic winch monitoring system |
EP1653240A1 (de) * | 2004-10-28 | 2006-05-03 | Ab Skf | Linearantriebsvorrichtung |
GB2430039B (en) * | 2005-09-07 | 2008-06-04 | Motorola Inc | Product age monitoring device and method of use of the device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2020432A (en) * | 1978-05-06 | 1979-11-14 | Arcubos Ltd | Improvements in or relating to strain detecting devices |
GB2090416A (en) * | 1980-12-24 | 1982-07-07 | Mannesmann Ag | Apparatus for indicating the wear of a lifting device such as a hoist |
EP0110865A2 (de) * | 1982-10-29 | 1984-06-13 | VOEST-ALPINE Aktiengesellschaft | Anordnung zur Überwachung des Schädigungsgrades durch Materialermüdung bei Bauwerken, Fahrzeugen, Maschinen u. dgl. |
US4636962A (en) * | 1983-05-24 | 1987-01-13 | Columbus Mckinnon Corporation | Microprocessor-controlled hoist system |
WO1989007852A1 (en) * | 1988-02-18 | 1989-08-24 | J.H. Fenner & Co. Limited | A monitoring system |
FR2663473A1 (fr) * | 1990-06-19 | 1991-12-20 | Systemes Productiques Ingenier | Dispositif et procede de limitation de charge pour appareil mecanique ou similaire, utilisant au moins un organe moteur de type electrique. |
US5133465A (en) * | 1990-01-29 | 1992-07-28 | Whiting Corporation | Bridge crane electric motor control system |
-
1993
- 1993-01-19 CH CH00148/93A patent/CH687150A5/de not_active IP Right Cessation
-
1994
- 1994-01-10 EP EP94902592A patent/EP0631681A1/de not_active Withdrawn
- 1994-01-10 WO PCT/CH1994/000004 patent/WO1994017496A1/de not_active Application Discontinuation
- 1994-01-10 US US08/302,887 patent/US5659468A/en not_active Expired - Fee Related
- 1994-01-10 JP JP6516530A patent/JPH07506206A/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2020432A (en) * | 1978-05-06 | 1979-11-14 | Arcubos Ltd | Improvements in or relating to strain detecting devices |
GB2090416A (en) * | 1980-12-24 | 1982-07-07 | Mannesmann Ag | Apparatus for indicating the wear of a lifting device such as a hoist |
EP0110865A2 (de) * | 1982-10-29 | 1984-06-13 | VOEST-ALPINE Aktiengesellschaft | Anordnung zur Überwachung des Schädigungsgrades durch Materialermüdung bei Bauwerken, Fahrzeugen, Maschinen u. dgl. |
US4636962A (en) * | 1983-05-24 | 1987-01-13 | Columbus Mckinnon Corporation | Microprocessor-controlled hoist system |
WO1989007852A1 (en) * | 1988-02-18 | 1989-08-24 | J.H. Fenner & Co. Limited | A monitoring system |
US5133465A (en) * | 1990-01-29 | 1992-07-28 | Whiting Corporation | Bridge crane electric motor control system |
FR2663473A1 (fr) * | 1990-06-19 | 1991-12-20 | Systemes Productiques Ingenier | Dispositif et procede de limitation de charge pour appareil mecanique ou similaire, utilisant au moins un organe moteur de type electrique. |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2324380B (en) * | 1997-04-19 | 2001-08-15 | Bosch Gmbh Robert | Acquisition device for operating magnitudes of electric motors |
EP2051213A1 (de) * | 2007-10-19 | 2009-04-22 | Siemens Aktiengesellschaft | Werkzeugmaschine, Produktionsmaschine und/oder Roboter |
Also Published As
Publication number | Publication date |
---|---|
EP0631681A1 (de) | 1995-01-04 |
US5659468A (en) | 1997-08-19 |
JPH07506206A (ja) | 1995-07-06 |
CH687150A5 (de) | 1996-09-30 |
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