EP4375227A1 - Procédé pour surveiller le fonctionnement d'un treuil, et en particulier le nombre de couches d'enroulement d'un câble sur un tambour de treuil - Google Patents

Procédé pour surveiller le fonctionnement d'un treuil, et en particulier le nombre de couches d'enroulement d'un câble sur un tambour de treuil Download PDF

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Publication number
EP4375227A1
EP4375227A1 EP23209911.9A EP23209911A EP4375227A1 EP 4375227 A1 EP4375227 A1 EP 4375227A1 EP 23209911 A EP23209911 A EP 23209911A EP 4375227 A1 EP4375227 A1 EP 4375227A1
Authority
EP
European Patent Office
Prior art keywords
cable
drum
winding
winch
parameter
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.)
Pending
Application number
EP23209911.9A
Other languages
German (de)
English (en)
French (fr)
Inventor
Frédéric LARGY
Thibaud Lauretti
Nicolas Nevers
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.)
Manitowoc Crane Group France SAS
Original Assignee
Manitowoc Crane Group France SAS
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 Manitowoc Crane Group France SAS filed Critical Manitowoc Crane Group France SAS
Publication of EP4375227A1 publication Critical patent/EP4375227A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/485—Control devices automatic electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54—Safety gear
    • 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
    • B66C13/46—Position indicators for suspended loads or for crane elements
    • 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
    • B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88—Safety gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/30—Rope, cable, or chain drums or barrels

Definitions

  • the invention relates to a method for monitoring the operation of a winch, implementing continuous monitoring of the number of winding layers of a cable on a drum of the winch.
  • the invention finds a preferred, and non-limiting, application for a crane-type lifting device, and in particular a tower crane, an element-mounted crane, an automated assembly crane, a port crane and a mobile crane.
  • a cable transport device such as for example a cable car or a chairlift.
  • a lifting winch comprising a motor rotating a drum on which a cable, called a lifting cable, is wound, to move a suspended load on a hook attached to the cable, to move it up and down.
  • a distribution winch comprising a motor rotating a drum on which a cable, called a distribution cable, is wound, to move a distributor carriage in translation along an arrow, the lifting cable passing through this distributor trolley so that the load is suspended below the distributor trolley which thus ensures movement of the load along the boom.
  • a luffing winch comprising a motor rotating a drum on which a cable, called a luffing cable, is wound, which is connected to the jib to raise or lower the boom. -this in order to tilt it more or less between a lowered horizontal position and several raised positions.
  • the drum is driven by the motor via a reduction gear.
  • the cable can be wound on its drum on several winding layers, the number of which varies depending on the winding and unwinding of the cable; we then speak of a multi-layer drum.
  • the invention proposes to make this monitoring of the winch more reliable or improve by focusing on a parameter which is the number of layers of winding of the cable on the drum.
  • the invention proposes a method for monitoring the operation of a winch, this winch comprising a motor driving a drum on which a cable is wound, this cable being able to be wound on the drum on several winding layers whose number varies depending on the winding and unwinding of the cable, said number of cable winding layers being able to take different values between 1 and N, N being the maximum number of cable winding layers.
  • Such a method thus makes it possible to know in real time the number of winding layers of the cable on the drum, and therefore equivalently the winding layer in use, which is advantageous and useful information for improving the precision in the estimation of numerous parameters, such as a length of unwound or wound cable, a height under load, a load indicator, a cable winding fault on the drum, etc.
  • logging makes it possible to know for how long the cable has occupied zero layers, one layer, two layers, ... up to N layers, which is particularly useful for estimating whether the deepest layers ( layers 1 and 2 at least) have been reached and therefore determine a level of stress or use of the cable termination attached to the drum; we speak of a dead cable part for the terminal part of the cable which is not stressed or used.
  • the measurement of the first parameter consists of measuring a rotational speed of a pulley on which the cable circulates at the outlet of the drum, the linear speed of movement of the cable being deduced as a function of this rotational speed of the pulley and a geometry of the pulley.
  • the rotation speed of the pulley carrying the cable can for example be measured using a tachymetric system (optical, mechanical, inductive, or other).
  • the measurement of the second parameter consists of a direct measurement of the rotation speed of the drum or of a measurement of an output speed of the motor.
  • the rotation speed of the drum or the output speed of the motor can for example be measured using a tachometer system (optical, mechanical, inductive, or other).
  • the method implements a calculation of the linear speed of travel of the cable as a function of the first parameter, and a calculation of the rotation speed of the drum as a function of the second parameter, and the number of winding layers of the cable is determined based on a ratio between the linear running speed of the cable and the rotation speed of the drum.
  • this ratio between the linear running speed of the cable and the rotation speed of the drum is proportional to the radial distance (or the winding diameter) of the cable.
  • the method implements a determination of a length of unwound or wound cable as a function of the number of winding layers of the cable and a reference position.
  • the method implements an estimation of a cable damage index as a function of the cumulative usage times specific to each layer number.
  • the damage index is classified as critical when at least one of the cumulative usage times is less than a critical threshold over the given period of time.
  • an alarm is generated when the damage index is classified as critical; so as to alert an operator or manager that it is time to audit or even replace the cable.
  • An intermediate threshold greater than the critical threshold, can be provided to inform that the cable must be completely unwound in order to stress the dead cable part, and therefore prevent critical damage.
  • the method implements monitoring of an angular position of the drum.
  • the winch is a winch for lifting a lifting device, such as for example a crane, in order to raise/lower a load suspended from a hook fixed on the cable, or the winch is a lifting winch of a lifting device such as a luffing jib crane, for tilting a jib more or less in order to raise/lower a load suspended from a hook fixed on the jib.
  • the method implements a determination of a height under the hook, corresponding to a vertical distance between the hook and the ground on which the lifting device rests, said height under hook being determined continuously as a function of the number of winding layers
  • the method implements a determination of a load indicator which is representative of a weight of the load, said load indicator being determined continuously as a function of the number of winding layers.
  • the drum 12 can be coupled to the motor shaft 11 via a reduction gear 14 to modify the speed ratio and/or the torque between the motor shaft 11 and the drum 12.
  • the motor 10 can be controlled by a control/command system 4 (such as for example a system integrating at least one processor and/or a controller and/or an electronic card) via a speed variator 16 (also called frequency variator) designed to regulate the speed of motor 10.
  • a control/command system 4 such as for example a system integrating at least one processor and/or a controller and/or an electronic card
  • a speed variator 16 also called frequency variator
  • a cable 2 is wound on the drum 12, this cable 2 being able to wind on the drum 12 on several winding layers, the number of which varies depending on the winding and unwinding of the cable 2.
  • the number of layers of winding of cable 2 can take different values between 1 and N, N being the maximum number of winding layers of cable 2. Thus, when cable 2 is wound to its maximum, the number of winding layers is N.
  • the values of the number of winding layers are thus associated with layer numbers.
  • N the number of winding layers
  • Layer No. 1 the deepest layer or closest to the drum axis 13, which is in contact with the drum 12
  • layer no. 2 in contact with layer no. 1
  • layer no. 3 the layer no. 3, and so on until layer no. N (the layer farthest from the axis of drum 13).
  • Layer No. 1 thus corresponds to the visible layer when cable 2 is unwound almost to its maximum (the maximum unwinding corresponding to the scenario normally never reached where there is no more layer and only one end of the cable is attached to the drum)
  • layer No. N thus corresponds to the layer visible when cable 2 is wound to its maximum.
  • the number of turns or turns of the cable 2 can be substantially equivalent, which depends on the length of the drum 12 and the diameter of the cable 2.
  • each winding layer of the cable 2 is associated with a radial distance (or layer radius) measured from the drum axis 13 to the center of the cable 2 in the layer; the radial distance therefore increasing with the number of the layer.
  • FIG. 2 illustrates an example of drum 12 around which five winding layers of cable 2 are wound, with a layer C1 or layer n°1 associated with a radial distance R1, a layer C2 or layer n°2 associated with a radial distance R2, a layer C3 or layer no. 3 associated with a radial distance R3, a layer C4 or layer no. 4 associated with a radial distance R4, and a layer C5 or layer no. 5 associated with a radial distance R5.
  • a monitoring system 3 is provided to monitor the operation of the winch 1, and more precisely to implement continuous (or real-time) monitoring of the number of winding layers of the cable 2 on the drum 12.
  • the calculation unit 40 is integrated into the control/command system 4 which controls the motor 10.
  • the control/command system 4 comprises calculation means adapted to form the calculation unit 40 which determines the number of winding layers of the cable 2. It is of course possible that the calculation unit 40 is separate from the control/command system 4.
  • the speed of rotation of the pulley 34 is directly linked to the linear speed of movement of the cable 2 leaving the drum 12, according to a linear law which depends on the diameter of the pulley 34.
  • the tachometer system 37 can for example be present in the form of an optical tachometer, mechanical or contact tachometer, inductive tachometer, or other device for measuring a rotational speed.
  • the first parameter P1 corresponds to the rotation speed of the pulley 34.
  • the second measuring device 32 is in the form of a tachometer system (or tachometer) adapted to measure an output speed of the motor 10, in other words a rotation speed of the motor shaft 11.
  • This output speed of the motor 10 corresponds to the rotation speed of the drum 12, either directly or after taking into account the reduction ratio of the reducer 14.
  • the second parameter P2 corresponds to the speed of motor output 10.
  • the second measuring device 32' is in the form of a tachometer system (or tachometer) adapted to directly measure the speed of rotation of the drum 12.
  • the second parameter P2' corresponds to the rotation speed of the drum 12.
  • the number of winding layers of the cable 2 (or the number of the layer being wound or unrolled) is linked to the winding radius of the cable 2 on the drum 12, which corresponds to the radial distance of the most external layer (which is the layer being wound or unrolled, furthest from the drum axis 13), and this winding radius is itself a function of the linear speed of movement of the cable 2 and the rotation speed of the drum 12.
  • the winding radius corresponds to the radial distance R5 of layer C5 or layer n°5.
  • the ratio between the linear running speed of the cable 2 (expressed in meters per second) and the rotation speed of the drum 12 (expressed in radians per second) is equivalent to this winding radius (expressed in meters) of the cable 2 on drum 12.
  • the database 41 is integrated into the control/command system 4.
  • the control/command system 4 includes an internal memory adapted to form the database 41. It is of course possible that the database 41 is deported from the control/command system 4.
  • the method can implement the generation of an alarm (or alarm signal) when the damage index is classified as critical.
  • a warning device 42 is provided, which can be visual or audible, connected to the calculation unit 40 and/or to the control/command system 4, to be controlled in order to generate an alarm, visual or audible, when the The damage index is classified as critical.
  • FIG. 3 illustrates a second lifting device 7 of the luffing jib crane type, comprising a mast 75 at the top of which is mounted a jib 76 which can pivot around a horizontal axis so that this jib can be more or less inclined relative to the horizontal and can thus be raised, and this second lifting device 7 comprises a lifting winch 71 comprising a motor 70 rotating a drum 72 on which is wound a lifting cable 73 which is connected to the boom 76 to raise or lower it in order to tilt it more or less between a lowered position to the horizontal and several raised positions, and thus to raise/lower a load suspended from a hook 74 fixed on the boom 76.
  • a lifting winch 71 comprising a motor 70 rotating a drum 72 on which is wound a lifting cable 73 which is connected to the boom 76 to raise or lower it in order to tilt it more or less between a lowered position to the horizontal and several raised positions, and thus to raise/lower a load suspended from a hook 74
  • such a lifting winch 71 can possibly also allow (by unwinding/ winding of the lifting cable 73) to also carry out a movement of the load along the boom 76, on this type of crane with a luffing jib.
  • the number of winding layers of the lifting cable 53 or the lifting cable 73 allows a determination, by the calculation unit 40, of 'a height under hook H, corresponding to a vertical distance between the hook 54 or 74 and the ground on which the lifting device 5 or 7 rests. In other words, the calculation unit 40 can continuously determine this height under hook H depending on the number of winding layers.
  • the number of winding layers of the lifting cable 53 or the lifting cable 73 allows a determination, by the calculation unit 40, of a load indicator which is representative of a weight of the load suspended from the hook 54 or 74.
  • the calculation unit 40 can continuously determine this load indicator as a function of the number of winding layers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control And Safety Of Cranes (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
EP23209911.9A 2022-11-22 2023-11-14 Procédé pour surveiller le fonctionnement d'un treuil, et en particulier le nombre de couches d'enroulement d'un câble sur un tambour de treuil Pending EP4375227A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2212141A FR3142182B1 (fr) 2022-11-22 2022-11-22 Procédé pour surveiller le fonctionnement d’un treuil, et en particulier le nombre de couches d’enroulement d’un câble sur un tambour de treuil

Publications (1)

Publication Number Publication Date
EP4375227A1 true EP4375227A1 (fr) 2024-05-29

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Application Number Title Priority Date Filing Date
EP23209911.9A Pending EP4375227A1 (fr) 2022-11-22 2023-11-14 Procédé pour surveiller le fonctionnement d'un treuil, et en particulier le nombre de couches d'enroulement d'un câble sur un tambour de treuil

Country Status (4)

Country Link
US (1) US20240166479A1 (zh)
EP (1) EP4375227A1 (zh)
CN (1) CN118062734A (zh)
FR (1) FR3142182B1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2967665A1 (fr) 2010-11-24 2012-05-25 Groupe D L D France Dispositif de treuil multicouche
CN111186783A (zh) * 2020-01-16 2020-05-22 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） 一种面向变径缆的绞车控制系统及其控制方法
WO2020101651A1 (en) * 2018-11-13 2020-05-22 Halliburton Energy Services, Inc. Automatic wire spooling control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2967665A1 (fr) 2010-11-24 2012-05-25 Groupe D L D France Dispositif de treuil multicouche
WO2020101651A1 (en) * 2018-11-13 2020-05-22 Halliburton Energy Services, Inc. Automatic wire spooling control
CN111186783A (zh) * 2020-01-16 2020-05-22 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） 一种面向变径缆的绞车控制系统及其控制方法

Also Published As

Publication number Publication date
FR3142182B1 (fr) 2024-11-01
US20240166479A1 (en) 2024-05-23
CN118062734A (zh) 2024-05-24
FR3142182A1 (fr) 2024-05-24

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