Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B7/00—Other common features of elevators
  • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
  • B66B7/1207—Checking means
  • B66B7/1215—Checking means specially adapted for ropes or cables
  • B66B7/1223—Checking means specially adapted for ropes or cables by analysing electric variables
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B19/00—Mining-hoist operation
  • B66B19/02—Installing or exchanging ropes or cables
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
  • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
  • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
  • G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
  • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
  • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
  • G01N27/20—Investigating the presence of flaws

Definitions

• the present invention relates to a method for checking a
• a test current can be applied to the tension members.
• a current flow, a voltage, an electrical resistance or an electrical conductivity is measured.
• a size measured in this way it is possible to deduce an integrity or a degree of wear of the suspension element. Namely, reduces the diameter of a tension member by fractures of individual wires or by metallic abrasion, the electrical resistance of this tension member increases.
• the patent US7123030B2 discloses such a method for determining a degree of wear of a belt-like suspension means. Based on a specific electrical resistance of electrically conductive tension members is closed on a breaking force of the suspension element.
• the monitoring system comprises at least one support means and a monitoring device for monitoring a Ziistandes the support means, wherein the support means comprises electrically conductive tension members, which are surrounded by an electrically insulating jacket.
• the method includes at least one of the steps of: a) checking that the tension members are electrically connected to the monitoring device; b) checking that the support means are electrically connected to the monitoring device; c) Checking whether an electrical resistance of a tension member or several interconnected tension members is within a range; d) Check whether a deviation of an electrical resistance of a
• Such a method for checking a monitoring system has the advantage that installation errors of the monitoring system and also defects in the installed material can be reliably detected before the elevator installation is released for the intended operation. This ensures that the monitoring system, which performs a monitoring of a state of a suspension element during operation of the elevator installation, is installed correctly before the elevator system is released for the intended operation. This ensures that the
• connected support means can determine what the further course of
• the proposed method can also prevent incorrectly installed monitoring systems, for example not completely connected to the monitoring device
• Components of the lift system are reinstalled, replaced or serviced.
• the method proposed here can therefore take place in the case of a newly installed elevator installation before its first release, or else in an already existing elevator installation on which an installation, that is, for example, an exchange of a component, has taken place.
• Elevator installation for which the elevator installation is approved and / or designed. An installation operation or a maintenance operation of an elevator installation is accordingly not an intended operation in the sense of this method.
• the method comprises at least two or at least three or at least four or five of the verification steps a) to e).
• Elevator installation and its monitoring system whereby a sequence of checking steps is freely selectable.
• the verification step a) may be performed first, followed by the verification step b), followed by the verification step c).
• these exemplary verification steps may be done in any other possible order.
• Monitoring device are electrically connected.
• Exemplary embodiment corresponds to the predetermined number Wegange all tension members of the elevator system.
• the predetermined corresponds to the predetermined number Buchange all tension members of the elevator system.
• the predetermined corresponds to the predetermined number Buchange all tension members of the elevator system.
• Number of tension members a certain proportion of all tension members of the elevator installation, for example at least 40% or at least 60% or at least 80% of all tension members of the elevator installation.
• the checking step a) ensures that a defined minimum number of all tension members of an elevator installation are electrically connected to the monitoring apparatus before the elevator installation is released for its intended operation. Thus, faulty connected or disconnected tension members can be reliably detected.
• Monitoring device are electrically connected.
• the predetermined corresponds to the predetermined number of support means all suspension means of the elevator system.
• the predetermined corresponds to the predetermined number of support means all suspension means of the elevator system.
• Number of suspension means a certain proportion of all suspension means of the elevator installation, for example at least 40% or at least 60% or at least 80% of all suspension means of the elevator installation.
• the execution of the verification step b) has the advantage that it can be reliably determined how many suspension means with the
• Monitoring device are electrically connected. This can be prevented that certain suspension elements of an elevator installation are not monitored in an unintentional manner by the monitoring device.
• the area has a lower limit, which corresponds to an electrical resistance of a tension member or a plurality of interconnected Ziiglust having a first length which is smaller than a length of Ziig didactic, and the area has an upper limit, which electrical resistance of a tension member or more Ziiglust interconnected with each other with a second length which is greater than a length of the tension members corresponds.
• the implementation of the verification step c) has the advantage that false suspension elements installed in the elevator installation, for example suspension elements which are too long or too short or also suspension means with not provided tension members, can be detected.
• electrical resistances which are connected to the monitoring device instead of suspension means, can be detected.
• a gross defect of the tension members of a suspension means can be detected, such as a broken or heavily damaged tension members.
• the first length is more than 40%, preferably more than 60%, particularly preferably more than 80% of the length of the tensile carriers, and the second length is less than 250%, preferably less than 167%, particularly preferably less than 125% of the length of the tension members.
• the first threshold value is less than 15%, particularly preferably less than 10%, particularly preferably less than 5%, of an average or predetermined electrical resistance of the tensile carrier or of one another interconnected tension member.
• the implementation of the verification step d) has the advantage that damage to a suspension means can be detected in a reliable manner. It occurs, for example, the case that support means are stored in a pit before installing them. If water accumulates in this pit, it may cause rust damage to the tension members of the suspension element. Such rust damage to the tension members change the electrical properties of the tension members.
• Verification step d) such deviations of the electrical properties of the individual tensile carriers can be reliably detected.
• defective suspension means in an elevator system reach the intended operation of the elevator installation.
• the second threshold value is less than 15%, preferably less than 10%, particularly preferably less than 5%, of an average or predetermined electrical resistance of the tension member or of the tension members connected to one another.
• the verification step e) is similar to the verification step d), a
• Verification steps d) and e) can be done in different ways. For example, a direct comparison of the electrical resistances of two traction carriers under review can take place. Alternatively, a deviation of a tension member from an average of a group of Switzerlandträgem be determined, in a further embodiment, a deviation from an electrical resistance of a tension member to a predetermined value. Depending on the design of the Elevator installation and specification of the verification process can be selected here a suitable variant.
• At least one suspension element is installed or maintained in the elevator installation during installation.
• Such a method has the advantage that newly installed suspension means or exchanged suspension means can be checked before the elevator installation is released for the intended operation.
• Monitoring device serviced or installed Such a method has the advantage that after work on the monitoring device, the monitoring system can be checked before the elevator system is released for the intended operation.
• the method disclosed here for checking a monitoring system in an elevator installation can be used in different types of elevator installations.
• elevator systems with or without shaft, with or without counterweight, or elevator systems with different gear ratios can be used.
• any monitoring system with support means comprising electrically conductive tension members surrounded by an electrically insulating jacket can be checked by the method disclosed herein.
• Figure 1 shows an exemplary embodiment of an elevator system
• Figure 2 shows an exemplary embodiment of a support means
• FIG. 3 shows an example flowchart for checking a
• the elevator installation 40 illustrated schematically and by way of example in FIG. 1 includes an elevator car 41, a counterweight 42 and a suspension element 1 and a traction sheave 43 with associated drive motor 44.
• the traction sheave 43 drives the support means 1 and thus moves the elevator car 41 and the counterweight 42 gegentechnisch.
• the drive motor 44 is controlled by an elevator control 45.
• the cabin 41 is designed to receive people or goods and to transport between floors of a building.
• Cabin 41 and counterweight 42 are guided along guides (not shown), in the example the cab 41 and counterweight 42 are each suspended from idlers 46.
• the suspension element 1 is at a first
• a loose end 1 .1 of the suspension element 1 is provided with a contacting device 2 for temporary or permanent electrical contacting of the tension members and thus for monitoring the suspension element 1.
• a contacting device 2 is arranged at both ends 1. 1 of the suspension element 1.
• only one contacting device 2 is arranged on one of the support means ends 1.1, and the tension members on the other
• Tragstoffende 1.1 are electrically connected.
• the Tragstoffenden 1.1 are no longer burdened by the tensile force in the suspension element 1, as this tensile force is already passed through the suspension means fastening devices 47 into the building.
• the contacting devices 2 are thus in a non-overrun area of the
• the contacting device 2 is connected at one end of the support means 1.1 with a monitoring device 3.
• the monitoring device 3 interconnects the tension members of the suspension element 1 as electrical resistors in an electrical circuit for the determination of electrical resistances.
• Monitoring device 3 is also connected to the elevator control 45. Thereby, a signal or a measured value from the monitoring device 3 to the
• Elevator control 45 are transmitted to the state of the support means 1, as determined from the monitoring device 3, in a control of the elevator 40 to
• the elevator installation 40 shown in FIG. 1 is exemplary. Other capping factors and arrangements, such as counterweights without counterweight, are possible.
• the contact techniksvortechnik 2 for Kunststoffierimg the support means 1 is then
• FIG. 2 shows a section of an exemplary embodiment of a suspension element 1.
• the support means 1 comprises a plurality of mutually parallel electrically conductive tension members 5, which are enveloped by a jacket 6. To the electric
• the jacket 6 can be pierced or removed, for example, or the tension members 5 can also frontally of a
• the suspension element is equipped with longitudinal ribs on a traction side.
• Such longitudinal ribs improve a traction of the suspension element 1 on the traction sheave 43 and also facilitate lateral guidance of the suspension element 1 on the traction sheave 43.
• the suspension element 1 can also be configured differently, for example without longitudinal ribs, or with a different number or different
• the tension members 5 are designed to be electrically conductive.
• FIG. 3 shows an example flow chart for carrying out a method for
• the process I corresponds to an installation while the process V2 corresponds to a designated operation.
• the condition ZI symbolizes a defect.
• the checking steps a) to e) are all carried out in sequence in this exemplary embodiment. At each check step, it is decided whether there is a defect (y) or whether there is no defect (x). If a defect is found in one of the inspection steps a) to e), then the check is provisionally terminated and the process is returned to process VI, ie the installation. Thus, in a condition of a defect in the monitoring system, a correction can be made before the verification steps a) to e) are carried out anew.
• no distinction is made between various deficiencies.
• a distinction is made between different deficiencies, so that depending on the nature of the defect, the process can lead to another process. For example, various defects can lead to various stages of the installation process.
• FIG. 3 shows only one of a large number of different possible methods. It goes without saying that, for example, the checking steps can take place in different numbers and in a different order.

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• Chemical & Material Sciences (AREA)
• Analytical Chemistry (AREA)
• Electrochemistry (AREA)
• Physics & Mathematics (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Biochemistry (AREA)
• General Health & Medical Sciences (AREA)
• General Physics & Mathematics (AREA)
• Immunology (AREA)
• Pathology (AREA)
• Maintenance And Inspection Apparatuses For Elevators (AREA)
• Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (1)

Family

ID=48534229

Family Applications (1)

Country Status (8)

Families Citing this family (3)

Family Cites Families (17)

• 2014
  • 2014-05-27 CN CN201480029609.XA patent/CN105246814A/zh active Pending
  • 2014-05-27 AU AU2014273202A patent/AU2014273202B2/en not_active Expired - Fee Related
  • 2014-05-27 WO PCT/EP2014/060873 patent/WO2014191372A1/de active Application Filing
  • 2014-05-27 BR BR112015029409A patent/BR112015029409A2/pt not_active IP Right Cessation
  • 2014-05-27 CA CA2910989A patent/CA2910989A1/en not_active Abandoned
  • 2014-05-27 EP EP14728868.2A patent/EP3003950A1/de not_active Withdrawn
  • 2014-05-27 US US14/893,765 patent/US20160101964A1/en not_active Abandoned
• 2016
  • 2016-04-27 HK HK16104823.7A patent/HK1216878A1/zh unknown

Non-Patent Citations (2)

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