EP2102087A1 - Method and device for the testing of elevator systems - Google Patents
Method and device for the testing of elevator systemsInfo
- Publication number
- EP2102087A1 EP2102087A1 EP07846769A EP07846769A EP2102087A1 EP 2102087 A1 EP2102087 A1 EP 2102087A1 EP 07846769 A EP07846769 A EP 07846769A EP 07846769 A EP07846769 A EP 07846769A EP 2102087 A1 EP2102087 A1 EP 2102087A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- car
- tensile force
- drive unit
- load
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000010276 construction Methods 0.000 claims description 12
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000010998 test method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- ZINJLDJMHCUBIP-UHFFFAOYSA-N ethametsulfuron-methyl Chemical compound CCOC1=NC(NC)=NC(NC(=O)NS(=O)(=O)C=2C(=CC=CC=2)C(=O)OC)=N1 ZINJLDJMHCUBIP-UHFFFAOYSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009662 stress testing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
Definitions
- the present invention relates to a method for load testing, in particular at start-up and / or when placing on the market, the complete mechanical construction, comprising at least one car and a drive unit, of elevators, wherein the mechanical construction with a predetermined overload, in particular the 1, 25- times the rated load, is charged.
- the safety devices brake, safety gear
- the safety-relevant functions driving ability
- This type of stress test is capable of faulty mechanical connections and components such.
- Elevators are known, wherein the car of the elevator is fixed by means of rail tongs in the pit and the hydraulic system is pressurized to determine whether a sufficiently large pressure can be built by the hydraulic system to bring the sinking car back flush into the stop to be able to. This load test is carried out without load masses being introduced into the car.
- a disadvantage of this known method is especially that a load test is not performed under defined conditions with respect to the test load.
- Object of the present invention is therefore to provide a method for loading test of the type mentioned, which is feasible without loading the car with load masses in all common types of lifts and drive systems for elevator systems at a defined test load.
- this object is achieved by a generic method in which the car is locked by a fastening device directly or indirectly in the shaft, then driven to exert a tensile force on the car, the drive unit, measured the tensile force and the
- the entire Mechanical construction including in particular also many mechanical connections such as screw connections, welds, reinforcements, tested.
- the entire car is locked on the one hand and not just a section of the supporting cable in the vicinity of the traction sheave on the one hand. The locking thus mechanically indistinguishable simulates the effect of a test mass introduced into the car.
- the inventive method differs from the known methods for determining the driving ability on the one hand crucially in that according to the invention, a predetermined tensile force is set and kept constant.
- a predetermined tensile force is set and kept constant.
- the prior art is not set a predetermined tensile force, but it turns due to the friction between the traction sheave and suspension cable maximum force, which is different from case to case, of its own. Due to the fact that according to the invention a predetermined test load
- the method according to the present invention differs in that a predetermined test load is set, which is never exceeded, since the drive unit is stopped upon reaching this tensile force.
- the drive unit a If in an embodiment of the invention, the drive unit a
- the inventive method can be used for the load test during commissioning or when marketing of traction sheave elevators.
- the drive unit has a hydraulic system and a piston moving the car, the method according to the invention can be used for checking during commissioning or when placing directly or indirectly hydraulic elevators in the car without the use of loading masses.
- the drive unit is driven by an external drive device, in particular an electric drive, it is ensured that the overload desired for the test can be generated in the form of a tensile force applied by means of the drive unit. This is the case even if the drive unit should not be able to apply a tensile force corresponding to the overload for whatever reason.
- the car preferably by a tension belt, is locked to a guide rail mounted in the shaft.
- a guide rail is present in the shaft, which is firmly connected to the shaft and is sufficiently stable to apply the counterforce for the tensile load corresponding to the overload.
- the car preferably by a tension belt, in the Shaft pit arrested.
- This variant is particularly favorable if either no guide rail is present or the guide rail is not suitable for attachment to a fastening device, for example because it is difficult to access.
- the tensile force can be measured according to the invention by a spring element.
- a spring element For example, it is possible within the scope of the invention to provide an electronically scanned spring balance in a tension belt. Similarly, the use of a measuring device with a load cell and associated electronic display is possible within the scope of the invention.
- Figure 1 Schematic representation of the balance of power in conventional testing an elevator system with load masses in the car
- FIG. 2 Schematic representation of the balance of power when testing the elevator system with the method according to the invention without the use of loading masses.
- Figure 1 the operation and the balance of forces in the application of the method according to the invention for testing for the marketing of lifts in the case of a traction sheave elevator are outlined.
- a traction sheave elevator 1 with a traction sheave 2 one guided over the traction sheave 2 of this
- the car 4 is movable within guide rails 6 in the vertical direction.
- the traction sheave 2 is provided with a drive 7 which is shown only roughly schematically.
- the drive 7 and driven by this traction sheave 2 are arranged on a base 8.
- the base 8 has two passages 9, through which the support cable 3 is guided in the vertical direction.
- the weight of the load mass 10 is selected so that it corresponds to the 1, 25 times the rated load of the traction sheave elevator 1.
- the counterweight 5 exerts a weight G on the supporting cable 3.
- the car 4 exerts a weight F on the other end of the support cable 3.
- the force acting on the same end of the supporting cable 3 as the weight F of the car 4 weight force of the test mass 10 is denoted by 1, 25 x Q.
- Traction sheave elevator 1 loaded with a total load of G + F + 1.25 x Q. Higher loads can not occur during operation when properly loaded.
- This test method is thus based on introducing the test mass 10 with a weight in the amount of 1.25 times the rated load Q in the car 4. This is the currently used in the art for testing on the market, which due to the requirement, a large Test mass 10 to move, is unfavorable.
- FIG. 2 illustrates again the example of the traction sheave elevator 1 from FIG. 1, the novel test method according to the present invention, in which no test mass 10 is required for the load test of the entire mechanical construction.
- the components of the traction sheave elevator 1 to be tested correspond to those described in connection with FIG.
- each tension belt 13 is attached to the underside of the car.
- the other end of each tensioning belt 13 is fixed in a further fastening clamp 12, which is connected in each case to the guide rails 6 and thus indirectly to the elevator shaft 14.
- each tension belt 13 is a mechanical voltage indicator in the form of a load cell 15 with electronic display available.
- the driving of the traction sheave 2 can be done by the drive 7 of the traction sheave elevator 1, when the drive 7 is designed so that it can muster the 1, 25 times the rated load. In other cases, the driving of the traction sheave 2 can also be done by an external drive. For example, a hand wheel or an electric drive can be used to drive the traction sheave 2.
- Traction sheave elevator 1 so in particular the axis 11, the base 8, the car 4 and the supporting cable 3, loaded with a total load, which consists of the weight G of the counterweight, the weight F of the car and the 1, 25 times the rated load Q results. This corresponds mechanically exactly to the load in the conventional test method explained in FIG. 1 using the test phase 10.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006058646 | 2006-12-11 | ||
DE102007015648A DE102007015648A1 (en) | 2006-12-11 | 2007-03-31 | Method and device for testing elevator installations |
PCT/EP2007/010168 WO2008071301A1 (en) | 2006-12-11 | 2007-11-23 | Method and device for the testing of elevator systems |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2102087A1 true EP2102087A1 (en) | 2009-09-23 |
EP2102087B1 EP2102087B1 (en) | 2012-03-07 |
Family
ID=39113979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07846769A Active EP2102087B1 (en) | 2006-12-11 | 2007-11-23 | Method and device for the testing of elevator systems |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2102087B1 (en) |
AT (1) | ATE548312T1 (en) |
DE (1) | DE102007015648A1 (en) |
WO (1) | WO2008071301A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180282121A1 (en) * | 2015-12-07 | 2018-10-04 | Kone Corporation | Method and arrangement for testing the car structures of an elevator and/or for adjusting a load weighing device |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008055962B3 (en) * | 2008-11-05 | 2010-04-01 | Wolfgang Marischler | Testing device for lifter used in e.g. medical region to lift movement limited persons, has drive device for applying driving torque to disk, where applied driving and braking torques are equally large in engaged condition |
CN102307803B (en) | 2009-02-09 | 2016-01-20 | 因温特奥股份公司 | For implementing the equipment of load detection and the method for implementing this type of detection in lift facility |
DE102009003040B4 (en) | 2009-05-12 | 2011-07-21 | DEKRA Industrial GmbH, 70565 | Method for checking the proper functioning of a hydraulic elevator |
ATE556973T1 (en) | 2009-05-12 | 2012-05-15 | Dekra Ind Gmbh | METHOD FOR CHECKING THE PROPER OPERATION OF A HYDRAULIC ELEVATOR |
FR2966140B1 (en) * | 2010-10-19 | 2013-11-15 | France Elevateurs | CABIN FOR TRANSPORTING PEOPLE AND / OR LOADS WITH CHARGE SIMULATION DEVICE |
EP2865628B1 (en) * | 2013-10-25 | 2016-05-25 | Kone Corporation | Inspection tests for an elevator without additional test weights |
CN104118781B (en) * | 2014-07-08 | 2017-01-11 | 上海新时达电气股份有限公司 | Method for determining balance coefficient |
US10745244B2 (en) | 2017-04-03 | 2020-08-18 | Otis Elevator Company | Method of automated testing for an elevator safety brake system and elevator brake testing system |
DE102017108758A1 (en) * | 2017-04-25 | 2018-10-25 | TÜV Nord Systems GmbH & Co. KG | Gas tension spring for traction measurement |
CN107445003B (en) * | 2017-08-01 | 2019-05-17 | 江苏省特种设备安全监督检验研究院 | Elevator load test combinations replace loading system and test method |
CN108358010A (en) * | 2018-04-04 | 2018-08-03 | 安徽中安检测中心有限公司 | A kind of cone of gears drum type progressive safety catching device testboard |
CN108584618A (en) * | 2018-06-12 | 2018-09-28 | 深圳市特种设备安全检验研究院 | The test device and test method of composite steel band equlvalent coefficient of friction |
CN109748168B (en) * | 2019-01-16 | 2020-08-07 | 安徽中科智能高技术有限责任公司 | No-load testing device and method for 1.25-time braking test of traction elevator |
EP3705441A1 (en) * | 2019-03-05 | 2020-09-09 | KONE Corporation | A method for controlling an elevator |
WO2023117831A1 (en) | 2021-12-20 | 2023-06-29 | Inventio Ag | Apparatus for measuring a force on a lift installation, method for checking balancing of a lift installation, and a lift installation for implementing the method |
WO2023117832A1 (en) | 2021-12-20 | 2023-06-29 | Inventio Ag | Device for measuring a force acting on an elevator system, method for measuring a force acting on a movable component of an elevator system, and an elevator system for carrying out the method |
DE102022104832A1 (en) | 2022-03-01 | 2023-09-07 | Henning Testing Systems Gmbh | Method for checking at least one safety-relevant parameter of an elevator system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4201840A1 (en) * | 1992-01-24 | 1993-07-29 | Rhein Westfael Tech Ueberwach | Method for testing drive-efficiency of pull-devices - has mobile basket locked against motion and movable weight mounted on lever for moment measurements at position of disc slip. |
DE4211289C2 (en) * | 1992-04-03 | 1994-01-05 | Tech Ueberwachungs Verein Hann | Method for measuring the driving ability of a conveyor drive |
DE4311011C2 (en) * | 1992-07-24 | 1994-07-14 | Arno John | Method and device for testing an elevator with a traction sheave drive |
DE4309335C2 (en) * | 1993-03-17 | 1995-04-27 | Tech Ueberwachungs Verein Hann | Method and device for testing hydraulic elevator systems |
DE9320093U1 (en) * | 1993-12-29 | 1994-03-03 | John Arno | Device for testing an elevator |
DE102005010346A1 (en) * | 2005-03-07 | 2006-09-14 | TÜV Rheinland Industrie Service GmbH | Test device and associated method |
-
2007
- 2007-03-31 DE DE102007015648A patent/DE102007015648A1/en not_active Withdrawn
- 2007-11-23 AT AT07846769T patent/ATE548312T1/en active
- 2007-11-23 EP EP07846769A patent/EP2102087B1/en active Active
- 2007-11-23 WO PCT/EP2007/010168 patent/WO2008071301A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2008071301A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180282121A1 (en) * | 2015-12-07 | 2018-10-04 | Kone Corporation | Method and arrangement for testing the car structures of an elevator and/or for adjusting a load weighing device |
Also Published As
Publication number | Publication date |
---|---|
DE102007015648A1 (en) | 2008-06-12 |
WO2008071301A1 (en) | 2008-06-19 |
ATE548312T1 (en) | 2012-03-15 |
EP2102087B1 (en) | 2012-03-07 |
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