WO2021193384A1 - Engin de chantier et procédé de détachement de treuil et procédé de transport de treuil - Google Patents

Engin de chantier et procédé de détachement de treuil et procédé de transport de treuil Download PDF

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Publication number
WO2021193384A1
WO2021193384A1 PCT/JP2021/011240 JP2021011240W WO2021193384A1 WO 2021193384 A1 WO2021193384 A1 WO 2021193384A1 JP 2021011240 W JP2021011240 W JP 2021011240W WO 2021193384 A1 WO2021193384 A1 WO 2021193384A1
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WO
WIPO (PCT)
Prior art keywords
winch
boom
mounting portion
upper swing
state
Prior art date
Application number
PCT/JP2021/011240
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English (en)
Japanese (ja)
Inventor
花本　貴博
Original Assignee
コベルコ建機株式会社
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Filing date
Publication date
Application filed by コベルコ建機株式会社 filed Critical コベルコ建機株式会社
Publication of WO2021193384A1 publication Critical patent/WO2021193384A1/fr

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    • 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
    • B66C23/26—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • 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
    • 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
    • B66C23/42—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 with jibs of adjustable configuration, e.g. foldable
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00

Definitions

  • the present invention relates to a work machine equipped with a boom, a winch attachment / detachment method, and a winch transportation method.
  • Patent Document 1 discloses a work machine provided with a telescopic boom that can be expanded and contracted, in which a plurality of winches are separately arranged in front of and behind the rotation center of the upper swing body.
  • the work machine is disassembled at the work site, transported to the next work site by a trailer, etc., and reassembled.
  • the third winch attached to the front portion of the upper swing body is removed from the upper swing body in order to reduce the weight during transportation.
  • An object of the present invention is to provide a work machine capable of improving workability in work for handling a winch, a winch attachment / detachment method, and a winch transportation method.
  • a work machine which is undulating and removable from a lower traveling body, an upper rotating body rotatably supported by the lower traveling body, and an upper rotating body. Attachable to and detachable from the boom attached to, the first attachment portion arranged at the front portion of the upper swing body, the second attachment portion arranged on the ventral side portion of the boom, and the first attachment portion. It also has a winch that can be attached to and detached from the second mounting portion and can wind and unwind the rope.
  • a winch attachment / detachment method for attaching / detaching the winch to / from the upper swing body in the work machine described above, and the winch attachment / detachment method is to attach the winch to the first attachment.
  • the boom and the winch are integrally attached to and detached from the upper swing body by lifting the boom in a state of being detached from the portion and attached to the second mounting portion.
  • what is provided by the present invention is a winch transport method for transporting the winch in the work machine described above, wherein the winch transport method detaches the winch from the first mounting portion and the first attachment portion.
  • the boom is lifted while being mounted on a mounting portion, and the boom and the winch are integrally mounted on a vehicle and transported so that the winch supports at least a part of the boom.
  • FIG. 1 is a side view of a work machine according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of the work machine of FIG.
  • FIG. 3 is an enlarged view of a main part A of the work machine of FIG.
  • FIG. 4 is a side view of a working machine boom and winch according to an embodiment of the present invention mounted on a trailer.
  • FIG. 5 is a side view of a state in which a boom of another work machine compared with the work machine according to the embodiment of the present invention is mounted on a trailer via a support base.
  • FIG. 1 is a side view of the crane 1 according to the present embodiment.
  • the crane 1 has a crawler-type lower traveling body 2 and an upper rotating body 3 rotatably mounted (provided and supported) on the upper part of the lower traveling body 2. ..
  • the lower traveling body 2 may be provided with a moving mechanism (for example, a wheel) other than the crawler.
  • the crane 1 further has a telescopic boom 4, three winches (first winch 5, second winch 6, third winch 7), a hanging rope, and a hook 10.
  • the telescopic boom (boom) 4 is telescopic and is rotatably supported by the upper swivel body 3 around the horizontal rotation center axis in the undulating direction, and is detachably attached to the upper swivel body 3. ..
  • the telescopic boom 4 has a boom base end portion and a boom tip portion opposite to the boom base end portion.
  • a boom foot 4S is arranged at the boom base end portion.
  • the boom foot 4S constitutes a rotation center axis extending in the left-right direction (horizontal direction).
  • the boom base end portion (boom foot 4S) of the telescopic boom 4 is supported by the upper swing body 3 so as to be rotatable around the rotation center axis.
  • the boom foot 4S is formed with a pin hole (not shown) along the left-right direction, and a pin (not shown) is also formed on the boom support frame (not shown) provided on the upper swing body 3 along the left-right direction. A hole is formed.
  • the telescopic boom 4 is attached to and detached from the upper swing body 3 by inserting and detaching a connecting pin (not shown) into and detaching the pin holes of the boom foot 4S and the boom support frame. Further, the telescopic boom 4 is attached to the upper swing body 3 so as to extend from the upper swing body 3 along the longitudinal direction which is the direction from the boom base end portion to the boom tip end portion. Further, a hook 10 is suspended from the tip of the telescopic boom 4 via a suspended load rope 10S (rope).
  • the boom according to the present invention may have a structure that does not expand and contract.
  • the winch is capable of winding and unwinding the suspended load rope 10S, and is for hoisting or lowering the hook 10.
  • the winch is composed of a drum, a hydraulic motor, and the like, and a pair of frames (see frame 21 described later) that support these members.
  • the first winch 5 and the second winch 6 are arranged at the rear portion of the upper swing body 3, and the third winch 7 is arranged at the front portion of the upper swing body 3.
  • the "front part” of the upper swivel body 3 is an end portion of the upper swivel body 3 in a direction in which the tip of the telescopic boom 4 moves in a plan view when the telescopic boom 4 falls down from the state shown in FIG.
  • the "rear portion” of the upper swivel body 3 refers to an end portion of the upper swivel body 3 opposite to the front portion with reference to the swivel center of the upper swivel body 3.
  • FIG. 2 is a perspective view of the crane 1 of FIG. 1, and FIG. 3 is an enlarged view of a main part A of the crane 1 of FIG.
  • the crane 1 further includes a first mounting member 8 (first mounting portion) and a second mounting member 9 (second mounting portion).
  • FIG. 2 illustrates a state in which the telescopic boom 4 is laid down. In FIG. 3, the third winch 7 is not shown.
  • the first mounting member 8 is provided (arranged) in the front portion of the upper swing body 3.
  • the third winch 7 is removable from the first mounting member 8.
  • the first mounting member 8 has a pair of left and right brackets 8a that are separated from each other to the same extent as the width of the third winch 7 in the left-right direction.
  • the width is the length in the left-right direction orthogonal to the front-rear direction and the vertical direction of the upper swivel body 3, respectively.
  • FIG. 4 is a side view of a state in which the telescopic boom 4 and the third winch 7 detached from the upper swing body 3 are mounted on the trailer 30.
  • the third winch 7 has a pair of left and right frames 21 and a pair of left and right plates 22 (first connection portions) attached to the pair of left and right frames 21, respectively.
  • first connection portions first connection portions
  • the third winch 7 is attached to the first attachment member 8 by connecting the pair of left and right plates 22 and the pair of left and right brackets 8a (FIG. 3) with a pair of left and right pins (not shown).
  • the third winch 7 is removed from the first mounting member 8 by pulling out the pair of left and right pins connecting the pair of left and right plates 22 and the pair of left and right brackets 8a.
  • a retaining member (not shown) is attached to the pin (pin retaining).
  • the pair of left and right plates 22 of the third winch 7 are detachably connected to the pair of left and right brackets 8a of the first mounting member 8.
  • the second mounting member 9 is provided (fixed) on the ventral side portion of the telescopic boom 4 (the lower portion of the telescopic boom 4 in the inverted state of FIG. 2).
  • the third winch 7 is removable from the second mounting member 9.
  • the second mounting member 9 has a pair of left and right brackets 9a that are separated from each other to the same extent as the width of the third winch 7 in the left-right direction.
  • the third winch 7 further has a pair of left and right plates 23 (second connection portion) attached to the pair of left and right frames 21.
  • the pair of left and right plates 23 are arranged (fixed) on the upper portions of the pair of left and right frames 21.
  • the third winch 7 is attached to the second attachment member 9 by connecting the pair of left and right plates 23 and the pair of left and right brackets 9a with a pair of left and right pins (not shown).
  • the third winch 7 is removed from the second mounting member 9 by pulling out the pair of left and right pins connecting the pair of left and right plates 23 and the pair of left and right brackets 9a.
  • a retaining member (not shown) is attached to the pin (pin retaining).
  • the pair of left and right plates 23 of the third winch 7 are detachably connected to the pair of left and right brackets 9a of the second mounting member 9.
  • the work when working on the crane 1, as shown in FIG. 1, by mounting the third winch 7 on the first mounting member 8, the work can be preferably performed. Then, when the crane 1 is disassembled, as shown in FIG. 2, the third winch 7 is removed from the first mounting member 8 on the upper swing body 3 side, and the third winch 7 is attached to the second mounting member 9 on the telescopic boom 4 side. By removing the telescopic boom 4 from the upper swing body 3 in the attached state, the telescopic boom 4 and the third winch 7 can be integrally removed from the upper swing body 3. Further, when assembling the crane 1, as shown in FIG.
  • the telescopic boom 4 and the third winch 7 are integrally swiveled upward with the third winch 7 attached to the second mounting member 9 on the telescopic boom 4 side. It can be attached to the body 3. Further, when the crane 1 is transported, as shown in FIG. 4, the telescopic boom 4 and the third winch 7 are integrally attached to the trailer 30 with the third winch 7 attached to the second attachment member 9 on the telescopic boom 4 side. Can be transported by. As a result, the disassembly man-hours and the assembly man-hours can be reduced and the workability can be improved as compared with the case where the telescopic boom 4 and the third winch 7 are disassembled, assembled and transported separately.
  • the state of the third winch 7 can be changed (switchable) between a working state (workable state), a detachable state (both mounted states), and a disassembled state (disassembled state). It is said that.
  • the working state the third winch 7 was attached (attached) to the first attachment member 8 on the upper swing body 3 side, and was removed (removed) from the second attachment member 9 on the telescopic boom 4 side. It is in a state.
  • the working state is a state in which the third winch 7 can perform the winding work and the feeding work of the suspended load rope 10S.
  • the detachable state is a state in which the third winch 7 is attached (attached) to both the first attachment member 8 on the upper swing body 3 side and the second attachment member 9 on the telescopic boom 4 side.
  • the third winch 7 was attached (attached) to the second attachment member 9 on the telescopic boom 4 side, and was removed (detached) from the first attachment member 8 on the upper swing body 3 side.
  • the disassembled state is a state in which the third winch 7 can be attached to and detached from the upper swing body 3 integrally with the telescopic boom 4.
  • the third winch 7 attached to the first attachment member 8 is used to lift a suspended load using, for example, a suspended load rope 10S. Work and the like can be preferably performed.
  • the third winch 7 is in the disassembled state, the telescopic boom 4 and the third winch 7 attached to the second attachment member 9 can be integrally transported as shown in FIG.
  • the third winch 7 is once attached to the first attachment member 8 and is attached to the second attachment. It is further attached to the member 9. That is, the third winch 7 is put into the detachable state in which it is attached across both the first attachment member 8 and the second attachment member 9.
  • the second mounting member 9 can reliably support the third winch 7. Therefore, when the crane 1 is disassembled, the third winch 7 is prevented from falling off, so that workability can be further improved.
  • the third winch 7 when assembling the crane 1, when the third winch 7 shifts from the disassembled state to the working state, the first mounting is performed while the third winch 7 is once mounted on the second mounting member 9. It is further attached to the member 8. That is, the third winch 7 is put into the detachable state in which it is attached across both the first attachment member 8 and the second attachment member 9. By putting the third winch 7 in the detachable state, even if the third winch 7 is subsequently removed from the second mounting member 9, the first mounting member 8 can reliably support the third winch 7. Therefore, when the crane 1 is assembled, the third winch 7 is prevented from falling off, so that workability can be further improved.
  • the third winch 7 can be in the detachable state. It is placed in a position. That is, the second mounting member 9 is arranged at a position where it can be connected to the third winch 7 already mounted on the first mounting member 8 when the telescopic boom 4 falls down. In other words, the first mounting member 8 is arranged at a position where it can be connected to the third winch 7 already mounted on the second mounting member 9 when the telescopic boom 4 falls down.
  • the telescopic boom 4 becomes the upper swing body 3 from the state where the pair of left and right plates 22 of the third winch 7 are connected to the first mounting member 8 and the telescopic boom 4 stands up against the upper swing body 3.
  • the third winch 7 is laid down, the length of the second mounting member 9 in the ventral side portion of the telescopic boom 4 is such that the pair of left and right plates 23 of the third winch 7 can be connected to the second mounting member 9.
  • the position of the direction is set.
  • the third winch 7 removed from the first mounting member 8 can be easily mounted on the second mounting member 9 with the telescopic boom 4 lying down. Further, at the time of assembling the crane 1, the third winch 7 removed from the second mounting member 9 can be easily mounted on the first mounting member 8 with the telescopic boom 4 lying down.
  • the expansion / contraction boom 4 assists the third winch 7 in a state where it is removed from the first attachment member 8 on the upper swing body 3 side and attached to the second attachment member 9 on the expansion / contraction boom 4 side. It can be lifted by a crane (not shown).
  • the telescopic boom 4 and the third winch 7 are integrally attached to and detached from the upper swing body 3.
  • the disassembly man-hours can be reduced.
  • integrally attaching the telescopic boom 4 and the third winch 7 to the upper swing body 3 the assembly man-hours can be reduced.
  • workability can be improved.
  • the above-mentioned installation and removal work of the third winch 7 has been performed while supporting the third winch 7 by using a companion machine (auxiliary crane), a forklift, or the like.
  • the above work may be performed while lifting the third winch 7 by the crane itself to which the third winch 7 is attached. In such a case, it is difficult to align the third winch 7 with respect to the mounting position, and it takes a lot of time to insert the attachment / detachment pin.
  • the telescopic boom 4 and the third winch 7 can be integrally removed from the upper swing body 3.
  • the third winch 7 is naturally arranged so as to face the second mounting member 9 of the telescopic boom 4.
  • the telescopic boom 4 is simply aligned with the upper swing body 3 and mounted on the front portion of the upper swing body 3.
  • the position of the third winch 7 with respect to the provided first mounting member 8 can be aligned.
  • the positioning work when mounting the third winch 7 on the upper swing body 3 becomes unnecessary, and the work man-hours can be significantly reduced.
  • the telescopic boom 4 and the third winch 7 can be removed integrally, the work of mounting on the transport vehicle and the work of fixing are reduced as compared with the conventional technology. Further, one transport vehicle can transport the telescopic boom 4 and the third winch 7. In addition, in a low-floor trailer arranged at a position where the height of the loading platform is low, mixed loading of heavy objects may be prohibited. Therefore, when the telescopic boom 4 and the third winch 7 are transported independently of each other as in the conventional case, two such trailers are required. Therefore, when the telescopic boom 4 and the third winch 7 can be integrated as in the present embodiment, the number of transport vehicles can be reduced as described above.
  • the third winch 7 can support the telescopic boom 4 so that the main body portion of the telescopic boom 4 rises from the loading platform of the trailer 30.
  • the spacer 31 between the third winch 7 and the loading platform it is possible to prevent the third winch 7 from being scratched.
  • the spacer 32 between the tip of the telescopic boom 4 and the loading platform it is possible to prevent the telescopic boom 4 from being scratched.
  • the third winch 7 can be attached to one of the first attachment member 8 and the second attachment member 9 regardless of the state of the crane 1, so that the third winch 7 at the work site can be attached. Loss is prevented.
  • FIG. 5 is a side view of a state in which the telescopic boom of another crane compared with the crane 1 according to the present embodiment is mounted on the trailer 30 via a pair of front and rear support bases 41.
  • FIG. 5 when the telescopic boom 4 is normally transported by the trailer 30, a pair of front and rear support bases 41 for supporting the telescopic boom 4 with respect to the loading platform are required.
  • FIG. 4 since the telescopic boom 4 is supported on the loading platform by the third winch 7, it is not necessary to use both or one of the front and rear support platforms 41. Become. Thereby, workability in transportation can be further improved.
  • the spacer 31 can be transported only by installing the spacer 31 on the loading platform of the trailer 30, the work of loading the telescopic boom 4 and the third winch 7 into the trailer becomes easy.
  • the support base 41 made of a heavy object on the loading platform of the trailer 30 in advance by an auxiliary crane or the like, the work is troublesome.
  • the third winch 7 can also have a function as a support base 41.
  • the third winch 7 can be attached to and detached from the first mounting member 8 provided at the front portion of the upper swing body 3. Further, the third winch 7 can be attached to and detached from the second mounting member 9 provided on the ventral side portion of the telescopic boom 4. Therefore, at the time of work, by attaching the third winch 7 to the first attachment member 8, it is possible to suitably perform the winding work and the feeding work of the suspended load rope 10S using the third winch 7. Then, at the time of disassembly, the telescopic boom 4 is removed from the upper swing body 3 with the third winch 7 removed from the first mounting member 8 and the third winch 7 attached to the second mounting member 9.
  • the third winch 7 can be integrally removed from the upper swing body 3. Further, at the time of assembly, the telescopic boom 4 and the third winch 7 can be integrally arranged on the upper swing body 3 with the third winch 7 attached to the second attachment member 9. Then, at the time of transportation, the telescopic boom 4 and the third winch 7 can be integrally transported with the third winch 7 attached to the second attachment member 9. As a result, the disassembly man-hours and the assembly man-hours can be reduced and the workability can be improved as compared with the case where the telescopic boom 4 and the third winch 7 are disassembled, assembled and transported separately.
  • the third winch 7 can be switched between a working state, a detachable state, and a disassembled state.
  • the third winch 7 shifts from the working state to the disassembled state when the crane 1 is disassembled, the third winch 7 is once attached to and detached from both the first mounting member 8 and the second mounting member 9. In this state, even if the third winch 7 is subsequently removed from the first mounting member 8, the second mounting member 9 can reliably support the third winch 7. Therefore, since the third winch 7 is prevented from falling off during disassembly, workability can be further improved.
  • the third winch 7 shifts from the disassembled state to the working state, the third winch 7 is temporarily detached, and then the third winch 7 is removed from the second mounting member 9. Even so, the first mounting member 8 can reliably support the third winch 7. Therefore, since the third winch 7 is prevented from falling off during assembly, workability can be further improved.
  • first mounting member 8 and the second mounting member 9 are arranged at positions so that the third winch 7 can be detached when the telescopic boom 4 is laid down.
  • the pair of left and right plates 22 and the pair of left and right brackets 8a (FIG. 3) can be connected to each other by a pair of left and right pins (not shown).
  • the pin holes of both are aligned in the left-right direction, and both pin holes are connected in the left-right direction so that the pair of left and right plates 23 and the pair of left and right brackets 9a can be connected by a pair of left and right pins (not shown). Match each other.
  • the third winch 7 removed from the first mounting member 8 can be easily mounted on the second mounting member 9 with the telescopic boom 4 lying down. Further, at the time of assembly, the third winch 7 removed from the second mounting member 9 can be easily mounted on the first mounting member 8 with the telescopic boom 4 laid down.
  • the telescopic boom 4 and the third winch 7 are connected by lifting the telescopic boom 4 in a state where the third winch 7 is detached from the first mounting member 8 and mounted on the second mounting member 9. It is integrally attached to and detached from the upper swing body 3 (winch attachment / detachment method).
  • the disassembly man-hours can be reduced.
  • the assembly man-hours can be reduced.
  • integrally transporting the telescopic boom 4 and the third winch 7, workability can be improved.
  • the telescopic boom 4 is transported by the trailer 30, the telescopic boom 4 is lifted in a state where the third winch 7 is detached from the first mounting member 8 and mounted on the second mounting member 9, and is used as a loading platform of the trailer 30. Install (winch transportation method). At this time, at least a part of the telescopic boom 4 is supported by the loading platform via the third winch 7. Normally, when transporting the telescopic boom 4, a support base 41 for supporting the telescopic boom 4 with respect to the loading platform is required.
  • the telescopic boom 4 and the third winch 7 are transported together, the telescopic boom 4 is supported on the loading platform by the third winch 7, so that the support base 41 is unnecessary or the support base 41 is reduced. Is possible. Thereby, workability can be further improved.
  • a work machine which is undulating and detachable from a lower traveling body, an upper rotating body rotatably supported by the lower traveling body, and the upper rotating body. Attachable / detachable to / from the boom, the first attachment portion arranged at the front portion of the upper swing body, the second attachment portion arranged on the ventral side portion of the boom, and the first attachment portion. It has a winch that can be attached to and detached from the second mounting portion and can wind and unwind the rope.
  • the winch can be attached to and detached from the first mounting portion provided at the front portion of the upper swing body. Further, the winch can be attached to and detached from the second mounting portion provided on the ventral side portion of the boom. Therefore, at the time of work, the work can be preferably performed by attaching the winch to the first mounting portion. Then, at the time of disassembly, the winch is removed from the first mounting portion, and the boom is removed from the upper swing body with the winch attached to the second mounting portion, so that the boom and the winch can be integrally removed from the upper swing body. can. Further, at the time of assembly, the boom and the winch can be integrally arranged on the upper swing body with the winch attached to the second attachment portion.
  • the boom and the winch can be integrally transported with the winch attached to the second attachment portion.
  • the disassembly man-hours and the assembly man-hours can be reduced and the workability can be improved as compared with the case where the boom and the winch are disassembled, assembled and transported separately.
  • the winch can be switched between a workable state, both mounted states, and a disassembleable state.
  • the winch In the workable state, the winch is mounted on the first mounting portion.
  • the winch is in a state of being detached from the second mounting portion and capable of performing the rope winding work and the rope feeding work, and in both mounting states, the winch is said to be said. It is in a state of being mounted on the first mounting portion and mounted on the second mounting portion, and in the disassembleable state, the winch is mounted on the second mounting portion and detached from the first mounting portion. It is desirable that the winch is in a state where it can be attached to and detached from the upper swing body integrally with the boom.
  • the boom has a boom base end portion rotatably supported around the rotation center axis horizontal to the upper swing body and a boom tip portion on the side opposite to the boom base end portion.
  • the winch can be attached to and detached from the first mounting portion so as to extend from the upper swivel body along a longitudinal direction which is a direction from the boom base end portion to the boom tip end portion.
  • the winch has a first connection portion that can be connected to the winch and a second connection portion that can be detachably connected to the second mounting portion.
  • a winch attachment / detachment method wherein the winch attachment / detachment method is a winch attachment / detachment method for attaching / detaching the winch to / from the upper swing body, and the winch is attached to the first attachment.
  • the boom and the winch are integrally attached to and detached from the upper swing body by lifting the boom in a state of being detached from the portion and attached to the second mounting portion.
  • a winch transport method in which the winch is lifted with the winch detached from the first mounting portion and mounted on the second mounting portion.
  • the boom and the winch are integrally mounted on a vehicle and transported so that the winch supports at least a part of the boom.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Jib Cranes (AREA)

Abstract

L'invention concerne un procédé de détachement de treuil, un procédé de transport de treuil et un engin de chantier capable d'améliorer la maniabilité de travail impliquant un treuil. Cet engin de chantier (1) comprend : un corps de déplacement inférieur (2) ; un corps rotatif supérieur (3) qui est disposé de façon rotative sur le corps mobile inférieur (2) ; une flèche (4) qui est fixée de manière amovible au corps rotatif supérieur (3) de sorte qu'il est possible de lever et de baisser ladite flèche (4) ; une première partie de fixation (8) qui est disposée à l'avant du corps rotatif supérieur (3) ; une seconde partie de fixation qui est disposée sur la section côté surface de ventre de la flèche (4) ; et un treuil (7) qui peut être fixé à et détaché de la première partie de fixation (8) et peut également être fixé à et détaché de la seconde partie de fixation (9).
PCT/JP2021/011240 2020-03-27 2021-03-18 Engin de chantier et procédé de détachement de treuil et procédé de transport de treuil WO2021193384A1 (fr)

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JP2020-057183 2020-03-27
JP2020057183A JP7392546B2 (ja) 2020-03-27 2020-03-27 作業機械およびウインチ着脱方法

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007238262A (ja) * 2006-03-08 2007-09-20 Kobelco Cranes Co Ltd クレーンのウィンチ取外し方法および上部旋回体
US20120085723A1 (en) * 2010-10-08 2012-04-12 Liebherr-Werk Ehingen Gmbh Boom element, telescopic boom and construction vehicle
JP2014144853A (ja) * 2013-01-29 2014-08-14 Kobelco Cranes Co Ltd ブーム及び起伏部材
JP2020011843A (ja) * 2018-07-20 2020-01-23 コベルコ建機株式会社 建設機械及びウィンチ本体の取付方法
JP2020104998A (ja) * 2018-12-28 2020-07-09 株式会社加藤製作所 クレーンの分解構造および方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007238262A (ja) * 2006-03-08 2007-09-20 Kobelco Cranes Co Ltd クレーンのウィンチ取外し方法および上部旋回体
US20120085723A1 (en) * 2010-10-08 2012-04-12 Liebherr-Werk Ehingen Gmbh Boom element, telescopic boom and construction vehicle
JP2014144853A (ja) * 2013-01-29 2014-08-14 Kobelco Cranes Co Ltd ブーム及び起伏部材
JP2020011843A (ja) * 2018-07-20 2020-01-23 コベルコ建機株式会社 建設機械及びウィンチ本体の取付方法
JP2020104998A (ja) * 2018-12-28 2020-07-09 株式会社加藤製作所 クレーンの分解構造および方法

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