EP4049959A1 - Verfahren zur sicherung eines kippbaren auslegerkrans, um die winkelposition des kippbaren auslegers abzusichern - Google Patents

Verfahren zur sicherung eines kippbaren auslegerkrans, um die winkelposition des kippbaren auslegers abzusichern Download PDF

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Publication number
EP4049959A1
EP4049959A1 EP22156960.1A EP22156960A EP4049959A1 EP 4049959 A1 EP4049959 A1 EP 4049959A1 EP 22156960 A EP22156960 A EP 22156960A EP 4049959 A1 EP4049959 A1 EP 4049959A1
Authority
EP
European Patent Office
Prior art keywords
tilting
motor
lock
locking
configuration
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
EP22156960.1A
Other languages
English (en)
French (fr)
Inventor
Florent MOURIN
Vincent VEILLEROT
François LEMIRE
Vincent Degeorge
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 EP4049959A1 publication Critical patent/EP4049959A1/de
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
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/32—Detent devices
    • 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
    • B66C23/04—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 with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
    • 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
    • B66C13/22—Control systems or devices for electric drives
    • 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
    • B66C23/02—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 with non-adjustable and non-inclinable jibs mounted solely for slewing movements
    • 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
    • B66C23/06—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 with jibs mounted for jibbing or luffing movements
    • 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
    • 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
    • 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
    • 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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm

Definitions

  • the invention relates to a method for securing a tilting jib crane for securing an angular position of a tilting jib.
  • the invention lies in the field of tilting jib cranes equipped with a tilting winch incorporating a tilting motor driving a drum on which is wound a tilting cable coupled to the tilting jib to drive it in displacement angular relative to the horizontal.
  • Two models of crane may be affected by the invention, namely a luffing jib crane and a self-erecting crane.
  • a luffing jib crane is a crane comprising a mast at the top of which is pivotally mounted a jib which can be raised and lowered, in other words the jib can pivot at the level of the mast to be raised, possibly to an almost vertical angular position, and be lowered to a horizontal angular position.
  • This jib is movable in raising and lowering by means of a tilt winch, also called a lifting winch, incorporating a motor driving a drum on which is wound a tilt cable coupled to the boom, also a lifting cable.
  • a self-erecting crane also called a folding crane, folding crane or transportable crane
  • a crane comprising a mast supporting a jib, such a self-erecting crane being configurable between a transport configuration in which the mast and the jib are folded on themselves or side-by-side, and a working configuration in which the mast and boom are unfolded to perform load distribution and lifting operations.
  • This jib is movable in raising and lowering, to be able to be folded and unfolded, by means of a tilting winch, also called retaining winch, incorporating a motor driving a drum on which is wound a tilting cable coupled to the boom, also called the retaining cable.
  • the invention concerns the locking of a tilting jib in a desired angular position, in order to maintain or retain it securely and reliably in this angular position, more or less inclined with respect to the horizontal.
  • the tilting boom In other words when it is raised or lowered to modify its angular position, it It is known to ensure the movement and immobilization of the tilting jib by means of the motor (also called the tilting motor) and an associated motor brake. On the other hand, once the angular position has been reached, it is important to secure it in order to make the configuration of the crane more reliable.
  • the motor also called the tilting motor
  • an associated motor brake On the other hand, once the angular position has been reached, it is important to secure it in order to make the configuration of the crane more reliable.
  • the invention proposes to provide a solution for being able to maintain in a secure and reliable manner an angular position of a tilting jib, which requires a minimum of human intervention, and which offers a simplification of the locking/unlocking operations of the tilt winch.
  • the invention proposes first of all to use a locking plate whose locking holes are oblong and arcuate, that is to say are in the form of an arc of a circle centered on the axis of rotation of the drum, which allows the lock to be able to be engaged in a locking hole with a circumferential clearance which facilitates locking and allows slight rotation of the drum; this circumferential play being dependent on the length of the locking holes and on the section of the lock.
  • the invention proposes to automate at least part of the locking, with the first control of the tilting motor which aims to reach the desired angular position, by raising/lowering the tilting jib with a speed parameter limited to the first maximum speed value (which preferably corresponds to the mechanically authorized maximum value) and with an engine torque limited to the first torque limit value; such a first torque limit value being a high value allowing the tilting motor to take up the forces in all the angular positions of the tilting jib.
  • the second tilt motor control aims to slightly lower the tilt boom until the latch is butted against one end of the tilt hole. lockdown. This lowering takes place with a speed parameter limited to the second maximum speed value (in other words at low speed), this second maximum speed value being adapted to the distance that can be traveled (at most the length of the locking hole) and the precision necessary for the proper execution of the manoeuvre.
  • the motor torque is itself limited to the second torque limit value.
  • the motor torque is still limited to the second torque limit value and the tilt motor continues to force to this second torque limit value, while the speed parameter is zero (in effect , due to the bolt stop, the drum no longer rotates and the jib no longer lowers).
  • This zero speed phase will last for the predetermined duration (for example a few seconds) before the tilt motor is stopped, and thus the tilt winch is locked.
  • the speed parameter may correspond to the angular speed of displacement of the tilting jib, or to another speed or another parameter which depends on this angular speed, such as for example a speed of rotation of the drum, engine speed, etc.
  • a validation by an operator that the lock occupies the locking configuration is implemented in order to authorize the second control of the tilt motor.
  • the displacement of the lock, between the locking configuration and the release configuration is carried out manually by an operator.
  • detection by a detection system that the lock occupies the locking configuration is implemented in order to authorize the second control of the tilt motor.
  • the displacement of the lock, between the locking configuration and the release configuration takes place by means of an actuator.
  • the third command of the tilt motor is followed, before or after the displacement of the lock towards the release configuration, by a closing of a motor brake associated with the tilt motor.
  • the engine brake is closed, at the end of the release phase, in order to retain the tilting jib thanks to this engine brake, before opening it to operate an angular displacement of the tilting jib, for example to fold it or to reach a new angular position.
  • movement of the latch to the release configuration is followed by a fourth tilt motor command to move the tilt boom up or down, with the speed parameter limited to the first maximum value of speed and a limitation of the motor torque to the first torque limit value.
  • the tilt jib can again be moved at high speed, i.e. with a clamping of the speed parameter at the first maximum speed value, and with an engine torque adapted to take up the forces. If necessary, the motor brake is opened to be able to operate the fourth command of the tilt motor.
  • a detection by a detection system that the lock occupies the release configuration is implemented in order to authorize the fourth command of the tilt motor.
  • the first command of the tilt motor followed by the forward movement of the lock causes said lock to be substantially in the middle of the locking hole
  • the second control of the tilt motor causes the drum to rotate in a lowering direction along an angular lowering sector substantially equivalent to half of the angular locking sector.
  • the third command of the tilt motor causes the drum to rotate in a raising direction, opposite to the lowering direction, according to an angular sector of inclination substantially equivalent to half of the angular sector of locking .
  • substantially equivalent means exactly equivalent or equivalent to plus or minus 15% close to the length of the locking hole.
  • the tilting jib crane is a luffing jib crane or a self-erecting crane.
  • An advantageous use of the invention for a self-erecting crane is to lock and secure retention of the jib once unfolded, in other words in its working configuration.
  • An advantageous use of the invention for a luffing jib crane is to lock and make the holding of the jib more reliable in any of the inclined configurations of the jib, in other words whatever its inclination.
  • a first tilting jib crane 1 is a self-erecting crane, hereinafter called crane 1, which comprises a mast 10 mounted on a platform 11, for example a rotating platform, and supporting a jib 12 of the type tilting arrow.
  • the mast 10 can be a collapsible mast or a telescopic mast (as in the example shown) and the boom 12 is a collapsible boom comprising a succession of boom elements hinged together.
  • the crane 1 thus comprises a folding/unfolding mechanism which acts on the mast 10 and the jib 12 to fold and unfold the crane 1 and thus to move it from the working configuration to the transport configuration, and vice versa.
  • the boom 12 is thus tiltable insofar as, during configuration changes between the transport configuration and the working configuration, the boom 12 is more or less inclined in order to be able to unfold or fold up.
  • This folding/unfolding mechanism thus comprises a tilting winch 3 (also called a retaining winch for this self-erecting crane model) which acts on a tilting cable 35 (also called a retaining cable for this self-erecting crane model). automated assembly) coupled to the boom 12, via return devices such as pulleys and/or tie rods.
  • the tilt winch 3 of the crane 1 is placed on the platform 11.
  • a second tilting jib crane 2 is a luffing jib crane, hereinafter called crane 2, which comprises a mast 20 mounted on a platform (not visible) and supporting the tilting jib 22 pivotally mounted on the top of the mast 20 along a horizontal axis.
  • the jib 22 can pivot to be raised, possibly to an almost vertical angular position, and to be lowered to a horizontal angular position.
  • the crane 2 thus comprises a raising/lowering mechanism which acts on the jib 22 to drive it in angular displacement with respect to the horizontal.
  • the arrow 22 is thus tiltable insofar as it can be more or less inclined.
  • This raising/lowering mechanism thus comprises a tilting winch 3 (also called a lifting winch for this model of luffing jib crane) which acts on a tilting cable 35 (also called a lifting cable for this model of luffing jib crane).
  • luffing jib) coupled to the jib 22, via deflection members such as pulleys and/or tie rods.
  • the tilt winch 3 of the crane 2 is arranged on a counter-jib 24, which extends the jib 22 at the top of the mast 20.
  • this tilting winch 3 comprises a tilting motor 30 driving a drum 31 on which is wound the tilting cable 35 coupled to the jib 12, 22.
  • a rotation of the drum 31 according to a lifting direction leads to a winding of the tilt cable 35 around the drum 31 in order to ensure that the jib 12, 22 is raised.
  • a rotation of the drum 31 in a direction of lowering, opposite to the direction of raising, leads to an unwinding of the 35 around the drum 31 in order to ensure a lowering of the boom 12, 22.
  • the tilting winch 3 comprises the tilting motor 30, which is a rotary electric motor, which is driven by a frequency converter 32, with speed variator function.
  • the tilting winch 3 further comprises a motor brake 33, associated with the tilting motor 30.
  • the closing of the motor brake 33 immobilizes the tilting motor 30 and the drum 31 in rotation, while the opening of this motor brake 33 allows the tilt motor 30 and the drum 31 to rotate freely.
  • starting the tilt motor 30 is accompanied by opening the motor brake 33
  • stopping this tilt motor 30 is accompanied by the closing of the motor brake 33.
  • the crane also comprises a control/command system 5 connected to the frequency converter 32 for controlling the motor speed of the tilting motor 30, whether in raising and lowering, and thus controlling the angular displacement speed of the boom 12, 22, in raising and lowering.
  • This control/command system 5 is also connected to the motor brake 33 to control its opening/closing.
  • the control/command system 5 is also connected to a piloting device 6, used to pilot the functions of the crane 1, 2 by a pilot or crane operator, so that the control/command system 5 receives instructions from the driver device 6 for driving the tilt motor 30 via the frequency converter 32.
  • the crane further comprises a locking system 4 capable of locking the tilting winch 3, and more precisely capable of locking the drum 31 in rotation.
  • This locking system 4 comprises a locking plate 40 secured to the drum 31 and provided of locking holes 41 distributed circumferentially, where each of these locking holes 41 is of arcuate oblong shape.
  • each locking hole 41 extends over a given locking angular sector, for example of the order of 3 to 10 degrees.
  • the locking holes 41 are regularly distributed, being spaced from each other along a circular contour centered on the axis of rotation of the drum 31.
  • the locking plate 40 has at least six locking holes 41, or even between 6 and 20 locking holes 41.
  • Each locking hole 41 has two opposite ends, and has a given width measured in a radial direction starting from the axis of rotation of the drum 31.
  • This lock 42 is in the form of a cylindrical rod, having a diameter substantially equivalent, apart from assembly clearance, to the width of the locking holes 41, and less than the length of the locking holes 41 so that, in locking configuration, the lock 42 is engaged with a circumferential clearance inside a locking hole 41.
  • the drum 31 has a degree of freedom in rotation between two extreme positions of the lock 42 in abutment on the two respective opposite ends of the locking hole 41.
  • the crane also comprises a measurement system 7 for measuring a speed parameter PM representative of an angular speed of displacement of the jib 12, 22, in raising or lowering, where the control/command system 5 is connected to the measurement 7 to receive the measurements of the PM speed parameter.
  • the speed parameter PM can correspond to the angular speed of displacement of the arrow 12, 22, or else to another speed or another parameter which depends on this angular speed, such as for example a speed of rotation of the drum 31, an engine speed, a speed setpoint, etc.
  • the crane may include a detection system 8 detecting whether the lock 42 occupies the locking configuration or the release configuration, where the control/command system 5 is connected to the detection system 8 to receive information on the configuration occupied by lock 42.
  • this detection system 8 may comprise a first detector 81 detecting the lock 42 in the locking configuration and/or a second detector 82 detecting the lock 42 in the release configuration.
  • the or each detector 81, 82 can be of the proximity sensor, contact sensor, acoustic or visual sensor, etc. type.
  • the command control system 5 is configured to perform a first command of the tilt motor 30 to move the boom 12, 22 in raising or lowering, with a limitation of the speed parameter PM at a first maximum speed value V1 and a limitation of a motor torque of the tilt motor 30 to a first torque limit value C1, until reaching a given angular position of the boom 12, 22, wherein the latch 42 is aligned with one of the latch holes 41 of the latch plate 40, the latch occupying the release configuration.
  • this first control of the tilt motor 30 makes it possible to reach the desired angular position of the boom 12, 22, before a locking of the tilting winch 3 by the locking system 4.
  • the first command of the tilting motor 30 followed by the forward movement of the lock 42 causes this lock 42 to be substantially in the middle of the locking hole 41, so that this lock 42 is spaced from each of the ends of the locking hole 41 concerned.
  • the command control system 5 is configured to carry out a second control of the motor of inclination 30 to move the boom 12, 22 lowering, with a limitation of the speed parameter to a second maximum speed value V2, which is lower than the first maximum speed value V1, and a limitation of the engine torque of the engine by tilt 30 at a second torque limit value C2, which is lower than the first torque limit value C1, until the speed parameter PM is zero for a predetermined time to stop the tilt motor 30.
  • this second control of the tilt motor 30 makes it possible to rotate the drum 31 according to the direction of lowering, which is possible due to the circumferential play of the lock 42 inside the locking hole 41, up to that the lock 42 is in abutment against one of the ends of the locking hole 41.
  • the rotation of the drum 31 and of the tilt motor 30 is blocked, so that the PM speed parameter is zero, and this for the predetermined duration, and it is only at the end of this predetermined duration with a zero PM speed parameter that the command control system 5 commands the stopping of the engine tilt 30.
  • the command and control system 5 implements the second command of the tilt motor 30 on the condition of detection by the detection system 8 that the lock 42 occupies the locking configuration.
  • a detection by the detection system 8 that the lock 42 occupies the locking configuration is implemented in order to authorize the second control of the tilt motor 30.
  • validation by an operator that the lock 42 occupies the locking configuration is implemented in order to authorize the second control of the tilt motor 30.
  • the operator confirms that the lock 42 is in the locking configuration; it is for example the operator who has moved the lock 42 on the spot to the locking configuration.
  • the command control system 5 operates a closing of the motor brake 33, at the end of the first command of the tilt motor 30 and before passing the lock 42 into the locking configuration. Then, the command control system 5 operates an opening of the motor brake 33 once the lock 42 is in the locking configuration, to allow the second command of the tilt motor 30. At the end of the second command of the tilt motor tilt 30, the engine brake 33 is kept open.
  • the command control system 5 is configured to implement a release phase starting with a third command from the tilt motor 30 to move the boom 12, 22 in lifting, with a limitation of the speed parameter to the second maximum speed value V2 and a limitation of the motor torque of the tilt motor 30 to the second torque limit value C2.
  • this third control of the tilt motor 30 makes it possible to rotate the drum 31 according to the lifting direction, so that the lock 42 lifts off from its abutment against one of the ends of the locking hole 41, without however coming in abutment against the other of the ends of the locking hole 41.
  • the third control of the tilt motor 30 leads this lock 42 to return substantially to the middle of the locking hole 41, before being moved towards the release configuration .
  • the third command of the tilt motor 30 is followed by the rearward movement of the latch 42 from the locking configuration to the releasing configuration. It is conceivable that the command control system 5 operates a closing of the motor brake 33, at the end of the third command of the tilt motor 30 and before passing the lock 42 into the release configuration.
  • the arrow 12, 22 can again be moved angularly, and also the command control system 5 operates, after the movement of the lock 42 towards the release configuration, an opening of the motor brake 33 (assuming this motor brake 33 has been closed) and then operates a fourth command of the tilt motor 30 to move the jib 12, 22 in raising or lowering, with a limitation of the speed parameter to the first value maximum speed V1 and a limitation of the engine torque to the first torque limit value C1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Jib Cranes (AREA)
EP22156960.1A 2021-02-25 2022-02-16 Verfahren zur sicherung eines kippbaren auslegerkrans, um die winkelposition des kippbaren auslegers abzusichern Pending EP4049959A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2101846A FR3120071B1 (fr) 2021-02-25 2021-02-25 Procédé de sécurisation d’une grue à flèche inclinable pour sécuriser une position angulaire d’une flèche inclinable

Publications (1)

Publication Number Publication Date
EP4049959A1 true EP4049959A1 (de) 2022-08-31

Family

ID=75108626

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22156960.1A Pending EP4049959A1 (de) 2021-02-25 2022-02-16 Verfahren zur sicherung eines kippbaren auslegerkrans, um die winkelposition des kippbaren auslegers abzusichern

Country Status (4)

Country Link
US (1) US11919752B2 (de)
EP (1) EP4049959A1 (de)
CN (1) CN115043328A (de)
FR (1) FR3120071B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101439828A (zh) * 2008-12-12 2009-05-27 太原重工股份有限公司 一种带有卷筒锁定装置的起升机构
CN103407927A (zh) * 2013-08-09 2013-11-27 吕明俊 一种带式输送机用液压张紧绞车制动器
EP3375748A1 (de) * 2017-02-23 2018-09-19 Joy MM Delaware, Inc. Spannungsisolationssystem für windentrommel
EP3466865A1 (de) * 2017-09-28 2019-04-10 Manitowoc Crane Group France Sicherungsverfahren eines krans mit entfernbarem ausleger, und entsprechender kran

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004177A (en) * 1989-11-28 1991-04-02 Concord Industries, Inc. Apparatus for blocking a winch
US7226038B1 (en) * 2005-03-25 2007-06-05 Jon Wickstrom Load arrestor, lifting system and method
EP2969886B1 (de) * 2013-03-13 2019-05-15 Joy MM Delaware, Inc. Spannungsisolationssystem für windetrommel
DE102013007029A1 (de) * 2013-04-24 2014-11-13 Tts Marine Gmbh Winde mit Seiltrommel und Notstoppeinrichtung
US10336408B1 (en) * 2018-07-18 2019-07-02 Jacek Jankowski Method and device for locking rope winch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101439828A (zh) * 2008-12-12 2009-05-27 太原重工股份有限公司 一种带有卷筒锁定装置的起升机构
CN103407927A (zh) * 2013-08-09 2013-11-27 吕明俊 一种带式输送机用液压张紧绞车制动器
EP3375748A1 (de) * 2017-02-23 2018-09-19 Joy MM Delaware, Inc. Spannungsisolationssystem für windentrommel
EP3466865A1 (de) * 2017-09-28 2019-04-10 Manitowoc Crane Group France Sicherungsverfahren eines krans mit entfernbarem ausleger, und entsprechender kran

Also Published As

Publication number Publication date
FR3120071A1 (fr) 2022-08-26
CN115043328A (zh) 2022-09-13
US20220267121A1 (en) 2022-08-25
US11919752B2 (en) 2024-03-05
FR3120071B1 (fr) 2023-02-10

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