EP2560909A1 - Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage - Google Patents
Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlageInfo
- Publication number
- EP2560909A1 EP2560909A1 EP11714628A EP11714628A EP2560909A1 EP 2560909 A1 EP2560909 A1 EP 2560909A1 EP 11714628 A EP11714628 A EP 11714628A EP 11714628 A EP11714628 A EP 11714628A EP 2560909 A1 EP2560909 A1 EP 2560909A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- support means
- counterweight
- attachment point
- switch
- 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
- 239000000725 suspension Substances 0.000 title claims abstract description 46
- 238000012544 monitoring process Methods 0.000 title claims abstract description 11
- 238000012806 monitoring device Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000269793 Cryothenia peninsulae Species 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 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
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
- B66B5/125—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack electrical
Definitions
- the present invention relates to an elevator installation, in which a monitoring device or device for
- An elevator installation usually comprises a
- Elevator car and a counterweight which are moved in opposite directions in an elevator shaft.
- the suspension means usually consists of one or more uncoated or sheathed steel cables, one or more synthetic fiber ropes, one or more flat or profiled belts (e.g.
- V-ribbed belt or a parallel composite of the respective embodiments mentioned, in which each individual
- Supporting means can be guided over each own own traction sheave or a common drive shaft.
- Elevator car may be further raised, although the counterweight could be blocked in its downward movement by an unforeseen jamming in the elevator shaft or by an unforeseen sitting on the shaft floor buffers.
- the same problem can occur in the counterweight, if the elevator car on should sit on the shaft bottom buffers.
- This rising of a load - be it the elevator car or the counterweight - on one side of the traction sheave, without running on the other side of the traction sheave, the intended counter load freely descending, is not desirable and can lead to dangerous conditions (for example, to a falling back of the elevator car or of
- slack rope switches are often used to detect corresponding dangerous situations in the elevator system. Depending on the arrangement and design of these switches so that different dangerous situations can be detected.
- monitoring devices have been developed for the detection of a relieved, floppy suspension element. They are based, as for example in the European
- EP-Al-1 953 108 discloses, on a spring-reinforced mounting of the entire drive and a
- 2007/144456 discloses a direct, also spring-reinforced attachment of the support means itself.
- WO-Al-2007/144456 discloses an elevator device with elevator car, counterweight and a 2: 1 support means guide, wherein at each Tragstoffende a separate switch for detecting a suspension element slackness is provided. A relaxation of a spring which occurs at the fixed attachment point of the suspension element due to its release triggers the switch which shuts off the drive.
- the object of the present invention is a
- Monitoring device for the detection of limp support means to propose an elevator system, which is characterized by a
- Suspension element strand a second slack support element switch
- the present application for a suspension usually defines two fixed attachment points to which the support means is fixed in place, for example, in the upper region of the elevator shaft.
- the support means is guided for example via a traction sheave or a common drive shaft and thus forms two loops. In one of them is with at least one carrier role the
- Carrying elevator car in the other with at least one carrying roller the counterweight.
- the support means thus forms a plurality of support means sections or support center pieces that vary in the operation of the elevator system in their respective length.
- the support means sections lie between respective attack or force approach points. For example, a first support means portion of the entire support means between one of the fixed attachment points and a counterweight support roller of the counterweight or a
- a second support means portion of the entire support means is formed between the counterweight roller of the counterweight and the point of application of the support means to the counterweight and the traction sheave.
- This second suspension element section is also referred to below as the counterweight-side suspension element section.
- a third support means portion of the entire support means is between the traction sheave and a point of the
- This third suspension element section is hereinafter also the cabin-side suspension element section
- a fourth and usually last suspension element section of the entire suspension element is between the cabin roll of the Elevator car or the point of application of the support means to the elevator car or - if the elevator car is supported by at least two Kabinentragrollen - formed a second Kabinentragrolle the elevator car or a second point of the support means to the elevator car and the other stationary attachment point.
- the monitoring device provides for a sluggish contactor switch which is switched on in the normal operating state, i. closed is. However, as soon as one of the support means slackens, the
- Floating support switch interrupted, i. open.
- the invention enables the monitoring of all critical conditions in an elevator installation with a minimum
- Floating support switches The construction is simple, robust and reliable.
- Elevator system according to the invention form the subject of the dependent claims.
- FIG. 1 is a schematic representation of a part of a
- Fig. 2 is a schematic representation of a
- Fig. 3A is a schematic side view of a
- FIG. 3B is a schematic side view of
- Floating support switch according to Fig. 3B, according to the invention, in an open state (fault case);
- Fig. 1 shows a schematic perspective view of a portion of an elevator installation 100 with an elevator car 20 and a counter-rotating counterweight 5 in a 2: 1 constellation with two parallel support means la, lb.
- a front suspension means la forms of a first
- This type of suspension of the counterweight represents a 2: 1 suspension.
- traction sheave 3a, 3b is here also meant a drive shaft made of one piece, over which both support means la, lb run.
- the support means la further forms of the
- Elevator car 20 is carried on cabins 7a and 7b. This suspension also represents a 2: 1 suspension for the elevator car 20.
- the rear suspension means lb takes a corresponding course. Starting from the attachment point 2c at the
- the rear support means lb forms a support loop 4c, in which the counterweight 5 by means of a counterweight support roller 6b runs.
- the support means lb further forms of the
- Elevator car 20 is carried on car support rollers 7c and 7d (the car interior roller 7c can not be seen here because it is located behind and below the elevator car 20).
- car support rollers 7c and 7d the car interior roller 7c can not be seen here because it is located behind and below the elevator car 20.
- Elevator installation 100 according to FIG. 1 described. Only an upper portion of a hoistway 10 is shown in FIG. In order to better represent the course of the support means la and lb, the counterweight 5 was slightly below the
- Elevator car 20 shown, although the counterweight. 5
- Attachment points may, however, e.g. also be attached to the shaft walls of the hoistway 10 or to another stationary, sturdy structure (e.g., to cross members or a frame).
- the two traction sheaves 3a, 3b are of a
- common drive 8 driven. In the example shown, they sit for this purpose on a continuous shaft 19 which is coaxial with the axes of rotation of the traction sheaves 3a, 3b sitting.
- the Schlafftragstoffschalter 12a, 12b are indicated purely schematically in Fig. 1 by block diagrams with switch symbol.
- the operative connection or the action of the respective support means 1a, 1b on these slack support means switches 12a, 12b is indicated by arrows a, b, which point to the switch symbol.
- the support means la solves the case in an accident
- the two Schlafftragstoffschalter 12a, 12b are connected in series so that the opening of one of the two Schlafftragstoffschalter 12a, 12b interrupts a safety circuit 13 of the elevator system 100 already.
- the series connection of the two sluggish support switch 12a, 12b is symbolized in Fig. 1 by two lines which open into a safety circuit 30 (shown here as a block). If both
- Floating support switch 12a, 12b are closed (which is the case in normal operation), then the safety circuit 13 is closed and conducts electricity. If one or both
- Safety circuit 13 interrupted (called malfunction).
- the invention is based on the recognition that it is necessary for the detection of Tragstoffbrüchen that every day means la and lb from a switch, here
- Float support switch 12a, 12b called, is monitored.
- This switch must be designed and arranged so that it responds in case of slackening (breakage) of the support means la or lb. In this case, it is not decisive for the detection of "suspension element breaks" whether this form of monitoring is performed on the first support means 1a, e.g. takes place at a first attachment point 2a on the counterweight side or at a second attachment point 2b on the cabin side. That to recognize a
- Elevator car 20 with blocked counterweight 5 (called stalling), a slack support center switch 12a, 12b is disposed on the counterweight side, i. at the first
- a sluggish support switch is disposed either at the attachment point 2a or at the attachment point 2c.
- Counterweight 5 with blocked elevator car 20 (Stalling called) is the slack support switch 12a, 12b arranged on the cabin side. That in this case, the
- Attachment point 2b or fourth attachment point 2d arranged.
- the slack support switch 12a, 12b Either the slack support switches 12a, 12b are seated diagonally at the attachment points 2a and 2d as shown in Fig. 1, or they are seated diagonally at the attachment points 2b and 2c (not shown).
- Pro Tragstoffitz la, lb is so only one
- Floating support switch 12a, 12b required.
- FIG. 2 details of a safety circuit of an elevator installation 100 are shown in a schematic block diagram.
- the block diagram in Fig. 2 shows an example of a simple safety circuit 13.
- By the safety circuit 13 of the safety circuit 30 are all continuously
- the Schlafftragstoffschalter 12a and 12b are here in this preferred embodiment connected in series in the 1st level El arranged. Both slug support switches 12a, 12b are closed, which means none of them
- Float support switch 12a, 12b has triggered
- the two are
- Float support switch 12a, 12b but in the safety circuit 13 at different levels (such as, the levels El and E2) arranged. It is not mandatory that the
- Float support switches 12a, 12b are always physically connected in series. Functionally, however, it is in each case a series connection, since each of the slack support switch 12a, 12b can interrupt the safety circuit 13.
- the safety circuit 13 is here with a
- the second conductor (return conductor) is for example at 0 volts. If one of the switches in the safety circuit 13, for example one of the two slug support switches 12a, 12b opens, eg because of a suspension element breakage or a stalling situation, the current flow in the safety circuit 13 is interrupted and a relay, transistor or other switching element (not shown) can trigger an emergency stop. Like all switches of the safety circuit 13, the slack support switch 12a, 12b are designed as "opener". That is, when triggering the slack support switch 12a, 12b
- Slack support switch 12a is shown in exemplary schematic form.
- the slack support switch 12a here comprises a spring body 14 which is located on the underside opposite a bracket 15 or other stationary component
- the support means la runs centrally through the
- Spring body 14 therethrough and is attached to an upper side at an attachment point 16.
- This attachment point 16 corresponds for example to the first attachment point 2a.
- a first contact 17a is provided on the spring body 14.
- a second contact 17b Opposite sitting on a console 18 or other stationary component, a second contact 17b. If the support means la is loaded to train, as shown in Fig. 3A by the tensile force F, then the
- FIG. 3B shows the situation after a suspension element breakage of the suspension element 1a.
- the first contact 17a shifts upward and the electrically conductive Connection between Kl and K2 is interrupted. Since this slack support switch 12a is located in the safety circuit 13, as shown in Fig. 2, the safety circuit 13 would be opened in Fig. 3B and the elevator system 100 would rest.
- the slack support switch 12a, 12b can also be constructed differently. Instead of a compression of a spring or a spring body 14 may also be a normal operation
- Spring body can be inserted to a
- Floating support switches must be designed so that they are always closed in normal operation and open in case of failure.
- the invention can also be applied analogously to an elevator installation 100 with four suspension elements. In this case, only four slack support switches are required, of which one is used per suspension element. Overall, these are four
- the invention can also be applied to an elevator installation 100, in which the elevator car 20 is not subdued.
- the cab support rollers sit at the top of the elevator car 20.
- this does not change the arrangement of the slack support switch.
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11714628.2A EP2560909B1 (de) | 2010-04-19 | 2011-04-15 | Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10160323 | 2010-04-19 | ||
EP11714628.2A EP2560909B1 (de) | 2010-04-19 | 2011-04-15 | Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage |
PCT/EP2011/055986 WO2011131574A1 (de) | 2010-04-19 | 2011-04-15 | Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2560909A1 true EP2560909A1 (de) | 2013-02-27 |
EP2560909B1 EP2560909B1 (de) | 2014-08-20 |
Family
ID=42731950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11714628.2A Active EP2560909B1 (de) | 2010-04-19 | 2011-04-15 | Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage |
Country Status (5)
Country | Link |
---|---|
US (1) | US8602173B2 (de) |
EP (1) | EP2560909B1 (de) |
CN (1) | CN102858672B (de) |
ES (1) | ES2524399T3 (de) |
WO (1) | WO2011131574A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010121944A1 (de) * | 2009-04-20 | 2010-10-28 | Inventio Ag | Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage |
AU2011344433B2 (en) * | 2010-12-17 | 2017-03-23 | Inventio Ag | Lift installation comprising car and counterweight |
US9120645B2 (en) * | 2011-11-16 | 2015-09-01 | Spacelift Products, Inc. | Control system for a platform lift apparatus |
US8973715B2 (en) * | 2012-02-14 | 2015-03-10 | Inventio Ag | Movable body derailment detection system |
ES2576355T3 (es) * | 2012-06-29 | 2016-07-07 | Inventio Ag | Instalación de ascensor |
US20140216169A1 (en) * | 2013-02-04 | 2014-08-07 | Safeworks, Llc | Guide wire tension loss sensor |
US9303627B2 (en) | 2013-02-04 | 2016-04-05 | Safeworks, Llc | Guide wire tension loss sensor |
EP2886500B1 (de) * | 2013-12-17 | 2021-06-16 | KONE Corporation | Aufzug |
EP3121140A1 (de) | 2015-07-23 | 2017-01-25 | Inventio AG | Überwachungsvorrichtung zur erkennung von lockerung in einer anordnung mit einer multiplizität eines aufhängungs- und traktionsmediums eines aufzugs |
EP3124421A1 (de) | 2015-07-28 | 2017-02-01 | Inventio AG | Tragmittelaufhängvorrichtung mit asymmetrischer wippvorrichtung für eine aufzuganlage |
CA3014710A1 (en) | 2016-03-10 | 2017-09-14 | Inventio Ag | Supporting means for an elevator installation, with multiple sensors arranged along the supporting means |
WO2018019665A1 (en) | 2016-07-28 | 2018-02-01 | Inventio Ag | Elevator suspension member slack detection arrangement |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4106594A (en) * | 1977-04-08 | 1978-08-15 | Westinghouse Electric Corp. | Elevator system |
AU548742B2 (en) * | 1981-06-15 | 1986-01-02 | Anglo American Corporation Of South Africa Limited | Slack rope detecting apparatus |
FI119237B (fi) * | 2003-01-31 | 2008-09-15 | Kone Corp | Hissi, menetelmä hissin muodostamiseksi ja tasauslaitteiston käyttö |
US6123176A (en) * | 1996-05-28 | 2000-09-26 | Otis Elevator Company | Rope tension monitoring assembly and method |
EP1278694B1 (de) * | 2000-05-01 | 2012-12-26 | Inventio AG | Lastaufnahmemittel für seil-aufzüge mit integrierter lastmesseinrichtung |
CA2502523C (en) * | 2002-11-04 | 2012-12-18 | Kone Corporation | Elevator cable tensioning device |
JP5214098B2 (ja) * | 2004-07-17 | 2013-06-19 | インベンテイオ・アクテイエンゲゼルシヤフト | エレベータ設備におけるケージまたは釣り合いおもりの懸架のための装置、および懸架手段の取り付けおよび保守のための方法 |
FI20060596L (fi) | 2006-06-16 | 2007-12-17 | Kone Corp | Järjestely hissin köysihöltymän toteamiseksi |
TWI394705B (zh) * | 2007-02-02 | 2013-05-01 | Inventio Ag | 升降機及監視此升降機之方法 |
WO2009036423A2 (en) * | 2007-09-14 | 2009-03-19 | Thyssenkrupp Elevator Capital Corporation | System and method to minimize rope sway in elevators |
US8528703B2 (en) * | 2008-06-19 | 2013-09-10 | Inventio Ag | Elevator system with bottom tensioning apparatus |
US8162110B2 (en) * | 2008-06-19 | 2012-04-24 | Thyssenkrupp Elevator Capital Corporation | Rope tension equalizer and load monitor |
BR112012010453A2 (pt) * | 2009-11-03 | 2016-03-08 | Inventio Ag | processo e dispositivo para teste de tensão de tração em elementos tracionadores de uma seção de elementos tracionadores. |
US9169104B2 (en) * | 2010-12-17 | 2015-10-27 | Inventio Ag | Activating a safety gear |
-
2011
- 2011-04-15 EP EP11714628.2A patent/EP2560909B1/de active Active
- 2011-04-15 WO PCT/EP2011/055986 patent/WO2011131574A1/de active Application Filing
- 2011-04-15 CN CN201180019291.3A patent/CN102858672B/zh active Active
- 2011-04-15 ES ES11714628.2T patent/ES2524399T3/es active Active
- 2011-04-18 US US13/088,858 patent/US8602173B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2011131574A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2524399T3 (es) | 2014-12-09 |
CN102858672B (zh) | 2015-02-11 |
CN102858672A (zh) | 2013-01-02 |
US8602173B2 (en) | 2013-12-10 |
US20110253484A1 (en) | 2011-10-20 |
EP2560909B1 (de) | 2014-08-20 |
WO2011131574A1 (de) | 2011-10-27 |
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