CN104495637A - Crane self-disassembling device, crane and self-disassembling method - Google Patents

Crane self-disassembling device, crane and self-disassembling method Download PDF

Info

Publication number
CN104495637A
CN104495637A CN201410782754.7A CN201410782754A CN104495637A CN 104495637 A CN104495637 A CN 104495637A CN 201410782754 A CN201410782754 A CN 201410782754A CN 104495637 A CN104495637 A CN 104495637A
Authority
CN
China
Prior art keywords
turntable
master winch
rope
hoisting crane
telescoping boom
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.)
Granted
Application number
CN201410782754.7A
Other languages
Chinese (zh)
Other versions
CN104495637B (en
Inventor
颜颢
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.)
Zoomlion Heavy Industry Science and Technology Co Ltd
Original Assignee
Zoomlion Heavy Industry Science and Technology Co Ltd
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 Zoomlion Heavy Industry Science and Technology Co Ltd filed Critical Zoomlion Heavy Industry Science and Technology Co Ltd
Priority to CN201410782754.7A priority Critical patent/CN104495637B/en
Publication of CN104495637A publication Critical patent/CN104495637A/en
Application granted granted Critical
Publication of CN104495637B publication Critical patent/CN104495637B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/18Cranes 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
    • B66C23/26Cranes 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
    • B66C23/34Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/64Jibs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00Cranes
    • B66C2700/03Cranes with arms or jibs; Multiple cranes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Jib Cranes (AREA)

Abstract

The invention provides a crane self-disassembling device, a crane and a self-disassembling method. Wherein, hoist self-detaching device includes: a turntable; the telescopic suspension arm is provided with a basic arm section and a telescopic arm section, and the basic arm section is pivotally arranged on the rotary table; davit drive arrangement drives flexible davit and pivots, and hoist self-detaching device still includes: the supporting rod is provided with a first end and a second end which are oppositely arranged, and the first end is rotatably arranged on the rotary table; the connecting piece is connected with the telescopic boom and the support rod, the connecting piece has a lifting state for lifting the support rod and a lowering state for lowering the support rod, and the connecting piece is connected to the basic arm section or the telescopic arm section; and the rope supporting piece is arranged on the supporting rod and is arranged at an interval with the first end. The technical scheme of the invention is convenient for dismounting the main winch.

Description

Hoisting crane self-disassembling device, hoisting crane and from method for dismounting
Technical field
The present invention relates to technical field of engineering machinery, in particular to a kind of hoisting crane self-disassembling device, hoisting crane and from method for dismounting.
Background technology
At present, for the hoisting crane of super-tonnage due to the factor of volume and weight, master winch is need dismounting in hoisting crane transportation.Carry out auxiliary lifting at other hoisting crane of Assembly &Disassembly process need of master winch, therefore not only inconvenient dismounting master winch, and add relevant cost.
Summary of the invention
The present invention aims to provide a kind of hoisting crane self-disassembling device, the hoisting crane and from method for dismounting of being convenient to dismounting master winch.
To achieve these goals, according to an aspect of the present invention, provide a kind of hoisting crane self-disassembling device, comprising: turntable; Telescoping boom, has basic arm joint and telescopic boom joint, and basic arm joint is arranged on turntable pivotly; Arm actuating device, drive telescoping boom to carry out pivotable, hoisting crane self-disassembling device also comprises: strut bar, and have the first end and the second end that are oppositely arranged, first end is arranged on turntable rotationally; Attaching parts, connects telescoping boom and strut bar, attaching parts have mention strut bar mention state and transfer strut bar transfer state, attaching parts is connected on basic arm joint or telescopic boom joint; Cable support part, is arranged on strut bar, and cable support part and first end interval are arranged.
Further, attaching parts comprises steel rope or multiple pipe link connected rotationally successively, and attaching parts is connected rotationally with telescoping boom and strut bar respectively.
Further, turntable has master winch support portion, and first end is between master winch support portion and telescoping boom.
Further, cable support part is arranged on strut bar pivotly.
Further, hoisting crane self-disassembling device of the present invention also comprises: rope actuator, drive the rope that supports by cable support part move.
Further, rope actuator is wire rope handling elevator.
According to a further aspect in the invention, provide a kind of adopt above-mentioned hoisting crane self-disassembling device from method for dismounting, comprise the steps: step S10 from installation process: by master winch hanging on cable support part; Step S20: master winch is placed on turntable by the rotation of telescoping boom and/or the flexible of telescopic boom joint; As follows from unloading process:
Step S30: the master winch be placed on turntable is moved to assigned address by the rotation of telescoping boom and/or the flexible of telescopic boom joint.
According to a further aspect in the invention, provide a kind of adopt above-mentioned hoisting crane self-disassembling device from method for dismounting, comprise the steps: step S10 from installation process: by master winch hanging on cable support part; Step S20: drive rope to move by rope actuator and master winch is placed on turntable by the rotation of telescoping boom and/or the flexible of telescopic boom joint; As follows from unloading process: step S30: to drive rope to move by rope actuator and the master winch be placed on turntable is moved to assigned address by the rotation of telescoping boom and/or the flexible of telescopic boom joint.
Further, step S20 comprises further: by the rotation of telescoping boom and/or flexible top master winch being moved to turntable of telescopic boom joint, then drive rope to move by rope actuator and be placed on turntable by master winch; Step S30 comprises further: drive rope to move the top master winch be placed on turntable being moved to turntable by rope actuator, by the flexible top master winch be positioned at above turntable being moved to assigned address of the rotation of telescoping boom and/or telescopic boom joint, then drive rope to move by rope actuator master winch is moved on assigned address.
Apply technical scheme of the present invention, stretched out by the telescopic boom joint of telescoping boom, and basic arm is saved rotate towards the direction away from strut bar, be in make attaching parts and mention state, and attaching parts drives strut bar to rotate, strut bar drives cable support part to move on vertical direction and horizontal direction, the rope being connected with master winch can be mentioned by cable support part, and master winch is moved on master winch support portion, realize the installation of master winch, when needs dismounting master winch, can be realized by the rotation of arm, above-mentioned disassembly process participates in without the need to other hoisting cranes.In addition, attaching parts has mentions state and lower state, therefore can not have influence on the normal use of arm.As the above analysis, hoisting crane self-disassembling device of the present invention is convenient to dismounting master winch.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic front view of the embodiment according to hoisting crane self-disassembling device of the present invention;
Fig. 2 shows the schematic front view that in Fig. 1, hoisting crane self-disassembling device is connected with master winch;
Fig. 3 shows hoisting crane self-disassembling device in Fig. 1 and promotes the schematic front view of master winch;
Fig. 4 shows the schematic front view of the embodiment according to hoisting crane of the present invention.
Wherein, the Reference numeral in above-mentioned figure is as follows:
1, master winch; 10, turntable; 20, telescoping boom; 30, arm actuating device; 40, strut bar; 50, attaching parts; 51, pipe link; 60, cable support part; 70, rope actuator; 71, suspension hook; 80, chassis.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As depicted in figs. 1 and 2, the hoisting crane self-disassembling device of the present embodiment comprises turntable 10, telescoping boom 20, arm actuating device 30, strut bar 40, attaching parts 50 and cable support part 60.Telescoping boom 20 is arranged on turntable 10 pivotly.Arm actuating device 30 drives telescoping boom 20 to carry out pivotable.Strut bar 40 has the first end and the second end that are oppositely arranged, and first end is arranged on turntable 10 rotationally.Attaching parts 50 connects telescoping boom 20 and strut bar 40, attaching parts 50 have mention strut bar 40 mention state and transfer strut bar 40 transfer state, attaching parts 50 is connected on telescopic boom joint.Cable support part 60 is arranged on strut bar 40, and cable support part 60 and first end interval are arranged, and rope can be mentioned by cable support part 60.
The hoisting crane self-disassembling device of application the present embodiment, save by making the telescopic boom of telescoping boom 20 and stretch out, and basic arm is saved rotate towards the direction away from strut bar 40, state is mentioned to make attaching parts 50 be in, and attaching parts 50 drives strut bar 40 to rotate, strut bar 40 drives cable support part 60 to move on vertical direction and horizontal direction, the rope being connected with master winch 1 can be mentioned by cable support part 60, and master winch 1 is moved on master winch support portion, realize the installation of master winch 1, when needs dismounting master winch 1, by the rotation of telescoping boom 20 with flexiblely can to realize, above-mentioned disassembly process participates in without the need to other hoisting cranes.In addition, attaching parts 50 has mentions state and transfers state, therefore can not have influence on the normal use of telescoping boom 20.As the above analysis, the hoisting crane self-disassembling device of the present embodiment is convenient to dismounting master winch 1.
As shown in Figure 1, in the present embodiment, turntable 10 has master winch support portion, and master winch 1 can be arranged on master winch support portion.First end is between master winch support portion and telescoping boom 20.Adopt said structure, be convenient to master winch 1 to be installed on turntable 10.
As shown in Figure 1, in the present embodiment, attaching parts 50 comprises multiple pipe link 51 connected rotationally successively, and attaching parts 50 is connected rotationally with telescoping boom 20 and strut bar 40 respectively.Certainly, as other feasible embodiments, attaching parts 50 can be connection cord, and only connection cord easily and the winding of other objects, affect the dismounting of master winch 1, and multiple pipe link 51 overcomes the problems referred to above.
As shown in Figure 1, in the present embodiment, attaching parts 50 is connected with the top of telescoping boom 20.Adopt said structure, when the rotational angle of telescoping boom 20 is very little, master winch 1 can be made to obtain larger displacement, improve dismounting efficiency.
As shown in Figure 1, in the present embodiment, first end is arranged on turntable 10 pivotly, and the pivot axis of first end parallels with the pivot axis of telescoping boom 20.Adopt said structure, the stability of first end when pivotable is higher.Certainly, first end also can be connected with turntable 10 by spherical hinge structure rotationally.
As shown in Figure 1, in the present embodiment, cable support part 60 is arranged on strut bar 40 pivotly.Adopt said structure, the free end that can be connected with the rope of master winch 1 is connected to fixed position, that is, the rope being connected with master winch 1 rides on cable support part 60, along with the change of cable support part 60 position, cable support part 60 rotates under the friction force of rope, reduces friction force.Certainly, the free end of rope can directly be fixed on cable support part 60.As shown in Figures 2 and 3, rope can be connected with master winch 1 by suspension hook 71.
As shown in Figure 1, in the present embodiment, cable support part 60 is pulley.Certainly, as other feasible embodiments, cable support part 60 can have the part that rope wears through hole, and is fixedly mounted on strut bar 40.
As shown in Figure 1, in the present embodiment, attaching parts 50 is connected with the second end.Adopt said structure, when the rotational angle of telescoping boom 20 is very little, master winch 1 can be made to obtain larger displacement, improve dismounting efficiency.
As shown in Figure 1, in the present embodiment, cable support part 60 is arranged on the second end.Adopt said structure, when the rotational angle of telescoping boom 20 is very little, master winch 1 can be made to obtain larger displacement, improve dismounting efficiency.
As shown in Figure 1, the hoisting crane self-disassembling device of the present embodiment also comprises rope actuator 70, rope actuator 70 drive the rope that supports by cable support part 60 move.Adopt said structure, master winch 1 can be made to move to the top of master winch support portion by the combined action of the rotation of telescoping boom 20 and rope actuator 70, then master winch 1 is made to be placed on master winch support portion by rope actuator 70, to realize installing, therefore, it is possible to accurately and rapidly dismounting master winch 1.
As shown in Figure 1, in the present embodiment, rope actuator 70 is wire rope handling elevator.Certainly, rope actuator 70 also can be driving cylinder.
As shown in Figure 1, in the present embodiment, rope actuator 70 is between strut bar 40 and telescoping boom 20.Adopt said structure, make the matching relationship of each part more stable.
As shown in Figure 1, in the present embodiment, telescoping boom 20 is between arm actuating device 30 and strut bar 40.Adopt said structure, make the matching relationship of each part more stable.
As shown in figures 1 and 3, in the present embodiment, telescoping boom 20 has extended configuration and retracted state.Can be more accurate by the stretching, extension of telescoping boom 20 and retraction, dismounting master winch 1 more quickly.
As shown in figures 1 and 3, in the present embodiment, the state to be hoisted that strut bar 40 has horizontal-extending and the lifting state tilting to extend, when attaching parts 50 is in until mode of operation, strut bar 40 is in state to be hoisted; When attaching parts 50 is in running order, strut bar 40 is in lifting state.Adopt said structure, when without the need to dismounting master winch 1, strut bar 40 is horizontally disposed with, and can not affect the operation of other equipment.
As shown in Figure 1, in the present embodiment, adjacent two pipe links 51 connect pivotly, attaching parts 50 is connected pivotly with telescoping boom 20 and strut bar 40 respectively, and pivot axis, the attaching parts 50 of the pivot axis of adjacent two pipe links 51, attaching parts 50 and telescoping boom 20 all parallel with the pivot axis of telescoping boom 20 with the pivot axis of strut bar 40.Adopt said structure, more stable during each part pivotable.
Present invention also provides a kind of hoisting crane, as shown in Figure 4, the hoisting crane of the present embodiment comprises the hoisting crane self-disassembling device of chassis 80 and above-described embodiment, and turntable 10 is arranged on chassis 80 pivotly, and the pivot axis in the vertical direction of turntable 10 extends.The hoisting crane of the present embodiment is convenient to dismounting master winch 1.
Present invention also provides a kind of adopt the hoisting crane self-disassembling device of above-described embodiment from method for dismounting, embodiment one in method for dismounting (not shown), comprise the steps: step S10 from installation process: by master winch hanging on cable support part.Step S20: master winch is placed on turntable by the rotation of telescoping boom and/or the flexible of telescopic boom joint.As follows from unloading process: step S30: by the rotation of telescoping boom and/or the flexible of telescopic boom joint, the master winch be placed on turntable to be moved to assigned address.Embodiment one be convenient to dismounting master winch from method for dismounting.
Present invention also provides a kind of adopt the hoisting crane self-disassembling device of above-described embodiment from method for dismounting.Embodiment two in method for dismounting (not shown), comprise the steps: step S10 from installation process: by master winch hanging on cable support part.Step S20: drive rope to move by rope actuator and master winch is placed on turntable by the rotation of telescoping boom and/or the flexible of telescopic boom joint.As follows from unloading process: step S30: to drive rope to move by rope actuator and the master winch be placed on turntable is moved to assigned address by the rotation of telescoping boom and/or the flexible of telescopic boom joint.Embodiment two be convenient to dismounting master winch from method for dismounting.
In embodiment two, step S20 comprises further: by the rotation of telescoping boom and/or flexible top master winch being moved to turntable of telescopic boom joint, then drive rope to move by rope actuator and be placed on turntable by master winch.Step S30 comprises further: drive rope to move the top master winch be placed on turntable being moved to turntable by rope actuator, by the flexible top master winch be positioned at above turntable being moved to assigned address of the rotation of telescoping boom and/or telescopic boom joint, then drive rope to move by rope actuator master winch is moved on assigned address.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a hoisting crane self-disassembling device, comprising:
Turntable (10);
Telescoping boom (20), has basic arm joint and telescopic boom joint, and described basic arm joint is arranged on described turntable (10) pivotly;
Arm actuating device (30), drive described telescoping boom (20) to carry out pivotable, it is characterized in that, described hoisting crane self-disassembling device also comprises:
Strut bar (40), has the first end and the second end that are oppositely arranged, and described first end is arranged on described turntable (10) rotationally;
Attaching parts (50), connect described telescoping boom (20) and described strut bar (40), described attaching parts (50) have mention described strut bar (40) mention state and transfer described strut bar (40) transfer state, described attaching parts (50) is connected on described basic arm joint or described telescopic boom joint;
Cable support part (60), is arranged on described strut bar (40), and described cable support part (60) and described first end interval are arranged.
2. hoisting crane self-disassembling device according to claim 1, it is characterized in that, described attaching parts (50) comprises steel rope or multiple pipe link (51) connected rotationally successively, and described attaching parts (50) is connected rotationally with described telescoping boom (20) and described strut bar (40) respectively.
3. hoisting crane self-disassembling device according to claim 1, is characterized in that, described turntable (10) has master winch support portion, and described first end is positioned between described master winch support portion and described telescoping boom (20).
4. hoisting crane self-disassembling device according to claim 1, is characterized in that, described cable support part (60) is arranged on described strut bar (40) pivotly.
5. hoisting crane self-disassembling device according to claim 1, is characterized in that, also comprise:
Rope actuator (70), drive the rope that supports by described cable support part (60) move.
6. hoisting crane self-disassembling device according to claim 5, is characterized in that, described rope actuator (70) is wire rope handling elevator.
7. a hoisting crane, comprising:
Chassis (80), is characterized in that, described hoisting crane also comprises:
Hoisting crane self-disassembling device according to any one of claim 1 to 6, described turntable (10) is arranged on described chassis (80) pivotly, and the pivot axis in the vertical direction of described turntable (10) extends.
8. adopt hoisting crane self-disassembling device according to claim 1 from a method for dismounting, it is characterized in that, comprise the steps: from installation process
Step S10: by master winch hanging on cable support part;
Step S20: described master winch is placed on described turntable by the rotation of described telescoping boom and/or the flexible of described telescopic boom joint;
As follows from unloading process:
Step S30: the described master winch be placed on described turntable is moved to assigned address by the rotation of described telescoping boom and/or the flexible of described telescopic boom joint.
9. adopt hoisting crane self-disassembling device according to claim 5 from a method for dismounting, it is characterized in that, comprise the steps: from installation process
Step S10: by master winch hanging on cable support part;
Step S20: drive rope to move by described rope actuator and described master winch is placed on described turntable by the rotation of described telescoping boom and/or the flexible of described telescopic boom joint;
As follows from unloading process:
Step S30: drive rope to move by described rope actuator and the described master winch be placed on described turntable is moved to assigned address by the rotation of described telescoping boom and/or the flexible of described telescopic boom joint.
10. according to claim 9 from method for dismounting, it is characterized in that,
Described step S20 comprises further: by the rotation of described telescoping boom and/or the flexible top described master winch being moved to described turntable of described telescopic boom joint, then drive rope to move by rope actuator and be placed on described turntable by described master winch;
Described step S30 comprises further: drive rope to move the top described master winch be placed on described turntable being moved to described turntable by rope actuator, by the flexible top described master winch be positioned at above described turntable being moved to assigned address of the rotation of described telescoping boom and/or described telescopic boom joint, then drive rope to move by described rope actuator described master winch is moved on assigned address.
CN201410782754.7A 2014-12-16 2014-12-16 Crane self-disassembling device, crane and self-disassembling method Active CN104495637B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410782754.7A CN104495637B (en) 2014-12-16 2014-12-16 Crane self-disassembling device, crane and self-disassembling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410782754.7A CN104495637B (en) 2014-12-16 2014-12-16 Crane self-disassembling device, crane and self-disassembling method

Publications (2)

Publication Number Publication Date
CN104495637A true CN104495637A (en) 2015-04-08
CN104495637B CN104495637B (en) 2016-10-05

Family

ID=52937119

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410782754.7A Active CN104495637B (en) 2014-12-16 2014-12-16 Crane self-disassembling device, crane and self-disassembling method

Country Status (1)

Country Link
CN (1) CN104495637B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1740080A (en) * 2004-08-25 2006-03-01 神钢起重机株式会社 Counterweight attaching and detaching apparatus for crane
CN201301179Y (en) * 2008-10-23 2009-09-02 徐州重型机械有限公司 Crawler crane self-dismounting device
CN201317636Y (en) * 2008-10-31 2009-09-30 长沙中联重工科技发展股份有限公司 Caterpillar crane balance weight auto-loading device
US20100084358A1 (en) * 2007-02-23 2010-04-08 Wolffkran Ag Jib boom rotating tower crane
EP1666401B1 (en) * 2004-12-03 2011-06-22 Manitowoc Crane Group Germany GmbH Mobile crane
CN203021223U (en) * 2012-12-03 2013-06-26 北汽福田汽车股份有限公司 Variable-amplitude pulley block structure for crane and crane with mechanism
CN103318774A (en) * 2013-06-04 2013-09-25 三一汽车起重机械有限公司 Self-assembly/self-disassembly hoisting device, crane and self-assembly/self-disassembly method of hoister
CN103420281A (en) * 2013-07-24 2013-12-04 三一汽车起重机械有限公司 Disassembly and assembly device, disassembly method and mounting method for crane and accessory structures thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1740080A (en) * 2004-08-25 2006-03-01 神钢起重机株式会社 Counterweight attaching and detaching apparatus for crane
EP1666401B1 (en) * 2004-12-03 2011-06-22 Manitowoc Crane Group Germany GmbH Mobile crane
US20100084358A1 (en) * 2007-02-23 2010-04-08 Wolffkran Ag Jib boom rotating tower crane
CN201301179Y (en) * 2008-10-23 2009-09-02 徐州重型机械有限公司 Crawler crane self-dismounting device
CN201317636Y (en) * 2008-10-31 2009-09-30 长沙中联重工科技发展股份有限公司 Caterpillar crane balance weight auto-loading device
CN203021223U (en) * 2012-12-03 2013-06-26 北汽福田汽车股份有限公司 Variable-amplitude pulley block structure for crane and crane with mechanism
CN103318774A (en) * 2013-06-04 2013-09-25 三一汽车起重机械有限公司 Self-assembly/self-disassembly hoisting device, crane and self-assembly/self-disassembly method of hoister
CN103420281A (en) * 2013-07-24 2013-12-04 三一汽车起重机械有限公司 Disassembly and assembly device, disassembly method and mounting method for crane and accessory structures thereof

Also Published As

Publication number Publication date
CN104495637B (en) 2016-10-05

Similar Documents

Publication Publication Date Title
JP5475960B2 (en) Mast raising structure and process for high capacity mobile lift crane
JPH1087278A (en) Mobile crane
CN102674172B (en) Super-lifting device, opening angle control device thereof and crane comprising super-lifting device
CN101792091B (en) Moment hoisting method for three connecting rods of gantry crane
CN204714403U (en) A kind of extension mast and configure the engineering machinery vehicle of this mast
JP6645222B2 (en) How to attach a crane jib
CN202483439U (en) Counter-weight self-assembly and self-disassembly device for rotary drilling rig
JP6234256B2 (en) Construction machinery
CN114608383B (en) Arrow body erecting device
CN104495637A (en) Crane self-disassembling device, crane and self-disassembling method
CN214456342U (en) Integrated super-lifting amplitude changing device for crane
CN202369291U (en) Winch mounting structure of automobile crane
JP2013129500A (en) Load hoisting device
CN214495494U (en) Hoisting equipment
CN215160448U (en) Hoisting equipment
CN205367481U (en) Simply support hoisting apparatus
CN212614571U (en) Flexible guiding device and derrick
CN204265314U (en) Two-wheel rotary crane
JP2008007278A (en) Crane
JP2019196239A (en) Counterweight position changing device and crane
CN220564168U (en) Tower crane
CN112938780B (en) Hoisting equipment
CN215249188U (en) Hoisting equipment
CN216444902U (en) Novel crane with foldable rotary table
CN221140967U (en) Lifting equipment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant