EP2751010A1 - Mesure de charge sur l'organe porte-charge d'engins de levage - Google Patents

Mesure de charge sur l'organe porte-charge d'engins de levage

Info

Publication number
EP2751010A1
EP2751010A1 EP12756156.1A EP12756156A EP2751010A1 EP 2751010 A1 EP2751010 A1 EP 2751010A1 EP 12756156 A EP12756156 A EP 12756156A EP 2751010 A1 EP2751010 A1 EP 2751010A1
Authority
EP
European Patent Office
Prior art keywords
load
sensor means
sensor
force
transmission
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.)
Ceased
Application number
EP12756156.1A
Other languages
German (de)
English (en)
Inventor
Ralf Kaptur
Helmuth Kettenbach
Robert Tordy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hirschmann Automation and Control GmbH
Original Assignee
Hirschmann Automation and Control GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hirschmann Automation and Control GmbH filed Critical Hirschmann Automation and Control GmbH
Publication of EP2751010A1 publication Critical patent/EP2751010A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • B66C1/40—Crane hooks formed or fitted with load measuring or indicating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/16—Applications of indicating, registering, or weighing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
    • B66C13/44—Electrical transmitters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F2700/00—Lifting apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/14—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads
    • G01G19/18—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads having electrical weight-sensitive devices

Definitions

  • the invention relates to a method and a device for carrying out the method for determining the force acting on a load receptor force of a working device, such as a hoist, a crane or the like, according to the respective features of the preambles of the independent claims.
  • the present invention relates to direct load measurement on a load receptor of mobile machinery, such as cranes. It also applies to fixed installations.
  • the loaders are usually hooks or other comparable mechanical devices.
  • the force acting on the load receiver can be detected when the load receiver is arranged and moved relatively movable to a part of the work equipment.
  • the force acting on the load receptor in particular the load on the load receiver (hook) hanging load to be transported , to know.
  • the operation of the working equipment in particular its range of action and the load moment limitation, is determined. This means that, depending on the values determined, there is a permissible range of action and an impermissible effective range of the technical equipment.
  • the operating parameter of the load acting on the load receiver is one of several operating parameters, but at the same time also a significant operating parameter. For if, for example, when applied to a crane, it turns out that the load attached to the hook would cause the crane to overturn depending on the length of the boom and depending on the angle of the boom, it must be detected as a result of detecting the load on the load receptor a control device must be avoided that this load either further moved or even recorded.
  • the invention is therefore based on the object of providing a method and a device for carrying out the method for determining the force acting on a load receptor force of a working device by means of which the load reliably, quickly and easily detected and can be provided for further processing in a control device.
  • sensor means are provided which determine the force acting on the load receiver, wherein transmission means are provided which transmit a force representing signal generated and emitted by the sensor means to a control device of the work equipment wirelessly , and further wherein the load receiver power supply means are provided which provide the power supply at least for the sensor means and / or the transmission means.
  • the load is determined directly at the point of origin of the load and does not have to be determined indirectly from other parameters, as in the prior art.
  • the sensor means emit a signal representing a signal representative of the force on the load receptor. Since the load receiver is arranged to be relatively movable relative to a component of the work-related device, it is furthermore advantageously provided that the transmission means transmit the signal emitted by the sensor means wirelessly to a control device of the work-related device. This eliminates cables that would either not be used in the relative movement between the load receptor and the component of the work equipment or would be inferior to high wear.
  • the load receiver is a hook arranged on a hook cable, and the hook cable is guided over one end over a deflection roller at a tip of a jib of the crane.
  • the sensor means and / or the transmission means require a power supply, whereby due to the relative movement between the load receiver and the component of the work equipment also difficult, if not impossible, to bring a power supply from the work equipment to the load receptor. Therefore, energy supply means are provided on the load receiver, which provide the power supply at least for the sensor means and / or the transmission means in a further advantageous manner.
  • the load receptor together with the sensor means, the transmission means and the power supply means an independent unit with which the force acting on the load receptor force quickly, reliably and above all directly determined and transmitted to a control device of the work equipment.
  • the transmission of the sensor signals does not necessarily take place to a control device which is arranged in or on the work-related device, but can also be provided. if appropriate to an independent control device, which is not arranged in or on the work equipment, take place.
  • the sensor means and / or the transmission means are designed to determine the force by means of the surface acoustic wave technique and / or to transmit the signal by means of the surface acoustic wave technique.
  • a technique is advantageously available with which the force acting on the load receiver can be determined and / or the signal representing the load can be transmitted to the control device via the components of the working device.
  • the sensor means may be formed as strain gauges.
  • the transmission means are designed as radio transmission means, for example according to the IEEE 802 standard (especially WLAN).
  • the respective alternative embodiment has the advantage that, on the one hand, conventional technologies, such as the strain gauges, can be used for detecting the force acting on the load receptor.
  • the radio transmission is available as a proven means as an alternative to transmitting the sensor signals instead of the SAW technique.
  • the energy supply means are designed on the load receiver as battery, rechargeable battery or solar cell.
  • This list is not restrictive, so that other energy supply means can be considered, which are suitable and designed to provide the power supply at least for the sensor means and / or the transmission means directly to the load receiver available.
  • the advantage of using a battery is that it has a long service life and can be replaced quickly. Because this is associated with permanent costs, it can alternatively be considered to use a battery that can be charged again and again for the purpose of power supply to the load receptor. Since the charging of such a battery may represent a time limitation in the operation of the work equipment, it may further be thought to form the power supply means as a solar cell. By such a solar cell, the permanent power supply is largely secured. If, as a result of darkness, shading or the like, such a solar cell can not provide energy, can in a proven way be thought to provide an energy storage (for example, battery, capacitor or the like) as a buffer.
  • an energy storage for example, battery, capacitor or the like
  • the above statements relate generally to a working device having a load receiver, wherein a force acts on the load receptor and the load receiver is arranged relatively movable to the component of the working device.
  • the application of the device according to the invention or the method according to the invention in a mobile or stationary crane wherein the load receptor is arranged on a crane rope hook and the hook is movable by means of the crane rope via a boom of the crane relative to the boom.
  • Mobile cranes are, for example, mobile cranes, stationary cranes being, for example, lattice boom cranes, harbor cranes or the like erectable on construction sites.
  • the load receptor does not necessarily always have to be a single hook, but can also be designed as an application-specific load receiver (for example for receiving containers).
  • the component of the work equipment in particular of the crane, does not always have to be a boom, but it can also be a different component.
  • the crane rope which can be simple, but often also multiple (according to the pulley principle) may be present.
  • the figure shows schematically the load receptor 1 with its components and the working equipment 2 with its components, in particular a control device for controlling the operation of the working equipment.
  • the load sensor 1 comprises, in addition to the mechanical components, not shown, (such as the actual load hook), sensor means 1 1, in which for detecting the force acting on the load transducer 1 technologies such as strain gauges (strain gauges), SAW (Surface Accoustic Wave ) or other technologies are used.
  • the sensor means 1 1 emit a signal which is supplied to a unit 12, in particular an analogue and / or digital evaluation unit.
  • the unit 12 may, but need not, be followed by a data preprocessing 13. In this data preprocessing 13, for example, a plausibility check of the output signals of the sensor means 11 or of the unit 12 can take place.
  • the output signals of the sensor means 1 1 or the unit 12 or (as shown here) of the unit 13 are provided to the transmission means 14 at the entrance.
  • the transmission means 14 By means of the transmission means 14, the wireless transmission of the signals of the sensor means 1 1, which represent the force acting on the load receptor force, via a transmission path 3 to a corresponding data transmission 21 in the control device of the work device 2.
  • the transmission means 14 and Data transmission 21 for the purpose of wireless data exchange by means of radio transmission have corresponding transmitting and receiving devices. These are omitted in data transmission by means of the SAW technique.
  • the data received by the data transmission 21 may, but need not, be supplied to a data preprocessing unit 22.
  • Either the output signals of the data transmission 21 or the data preprocessing 22 are supplied to a control unit 23 of the work equipment for its operation. It is basically known how operating equipment is operated in dependence on detected operating parameters (but so far only with the aid of an indirect load measurement), a description in this regard is unnecessary.
  • the data of the data transmission 21 (or the data preprocessing 22) can still be an overload protection 24 (for example, a load torque limit) are supplied. By means of such a likewise known load torque limitation can be achieved that the working device can be operated by means of the controller 23 only in a permissible range of action.
  • the signals of the detected and transmitted sensor means 1 which are known to represent the force acting on the load receptor, can also be displayed in a load display 25.
  • the patent describes the application of the physical load measurement in connection with the analog / digital evaluation and transmission unit and an "autonomous" and “necessary” energy generation for the supply of all electronic components on the load receptor. Autonomous energy production depends on the existing design and is therefore application-specific.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Control And Safety Of Cranes (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Force In General (AREA)

Abstract

La présente invention a pour objet un dispositif permettant de déterminer la force exercée sur un organe porte-charge d'un équipement de travail, l'organe porte-charge étant disposé mobile par rapport à un élément constitutif de l'équipement de travail. Selon l'invention, des moyens de détection déterminent la force exercée sur l'organe porte-charge; des moyens de transmission sont destinés à transmettre sans fil un signal représentatif de la force, généré et délivré par les moyens de détection, à un dispositif de commande de l'équipement de travail. De plus, l'organe porte-charge comporte des moyens d'alimentation en énergie qui alimentent en courant électrique au moins les moyens de détection et/ou les moyens de transmission.
EP12756156.1A 2011-08-31 2012-08-30 Mesure de charge sur l'organe porte-charge d'engins de levage Ceased EP2751010A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011111517 2011-08-31
PCT/EP2012/066851 WO2013030269A1 (fr) 2011-08-31 2012-08-30 Mesure de charge sur l'organe porte-charge d'engins de levage

Publications (1)

Publication Number Publication Date
EP2751010A1 true EP2751010A1 (fr) 2014-07-09

Family

ID=46801475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12756156.1A Ceased EP2751010A1 (fr) 2011-08-31 2012-08-30 Mesure de charge sur l'organe porte-charge d'engins de levage

Country Status (8)

Country Link
US (1) US9274011B2 (fr)
EP (1) EP2751010A1 (fr)
CN (1) CN103764539A (fr)
BR (1) BR112014003862A2 (fr)
CA (1) CA2846266A1 (fr)
DE (1) DE102012215391A1 (fr)
RU (1) RU2014110527A (fr)
WO (1) WO2013030269A1 (fr)

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DE102013020583A1 (de) * 2013-12-13 2015-06-18 Hirschmann Automation And Control Gmbh Sensorelement mit einem Überspannungsschutz
US9589444B1 (en) * 2015-10-14 2017-03-07 Slingmax Technologies LLC Electronic roundsling inspection, load monitoring and warning system
US9950908B2 (en) 2016-03-10 2018-04-24 Magnetek, Inc. System and method for determining a load in a material handling system
US11002622B2 (en) * 2017-01-10 2021-05-11 Simmonds Precision Products, Inc. Single-wire transmission of sensor data
EP3601131B1 (fr) * 2017-03-31 2022-05-11 Inventio AG Système de mesure de charge d'une cabine d'ascenseur et procédé de détermination de charge d'une cabine d'ascenseur
CN107255507B (zh) * 2017-06-05 2019-11-01 上海交通大学 车载无线无源称重检测系统及其检测方法
US11492117B2 (en) * 2019-06-10 2022-11-08 Goodrich Corporation Dual bus architecture for high reliability control of helicopter hoist
CN110562852B (zh) * 2019-09-17 2020-12-15 中南大学 天车运行驱动力控制方法、装置、设备及可读存储介质
CN111811625A (zh) * 2020-07-21 2020-10-23 成都英孚克斯科技有限公司 一种基于低功耗无线传输的数字称重传感器

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Also Published As

Publication number Publication date
US20140216171A1 (en) 2014-08-07
DE102012215391A1 (de) 2013-02-28
BR112014003862A2 (pt) 2017-03-14
US9274011B2 (en) 2016-03-01
WO2013030269A1 (fr) 2013-03-07
CN103764539A (zh) 2014-04-30
RU2014110527A (ru) 2015-10-10
CA2846266A1 (fr) 2013-03-07

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