CN105584942A - Crane arm and crane - Google Patents
Crane arm and crane Download PDFInfo
- Publication number
- CN105584942A CN105584942A CN201610123871.1A CN201610123871A CN105584942A CN 105584942 A CN105584942 A CN 105584942A CN 201610123871 A CN201610123871 A CN 201610123871A CN 105584942 A CN105584942 A CN 105584942A
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- CN
- China
- Prior art keywords
- arm
- crane
- tie
- head
- principal
- 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.)
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Classifications
-
- 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
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a crane arm and a crane and relates to the field of engineering machinery. By means of the crane arm and the crane, site transferring and transporting of the crane can be achieved under the condition that the crane arm is not disassembled. The crane arm comprises a main arm and an arm head which are rotationally connected. Before site transferring and transporting of the crane, the arm head can be rotated to the position where the arm head is attached to the main arm, such as the side face, the upper portion or the lower portion of the main arm, so that the gravity center of the crane is stable. Therefore, according to the crane arm provided by the technical scheme, site transferring and transporting of the crane can be achieved under the condition that the arm head is not disassembled.
Description
Technical field
The present invention relates to engineering machinery field, be specifically related to a kind of crane arm and crane.
Background technology
Along with the intensified competition in crane hanging component market, super-tonnage crane is in general liftingThe straight glide of marketing profit, being mainly full of of current domestic super-tonnage crane lifting workProfit field concentrates on wind-powered electricity generation installation and maintenance market.
Wind-powered electricity generation installation and maintenance market for the demand of crane be no longer on a large scale, field significantlyOverall performance advantage, but concentrate on the requirement of the lift heavy amount when larger for lifting altitude.Wind-powered electricity generation fabricating yard mostly is the adverse circumstances such as mountain area simultaneously, and therefore the design of wind-powered electricity generation arm needs simultaneouslyMeet lightweight, convenience be installed, the high requirement of the performance that hoists.
In the market, the main lifting work that super-tonnage crane is engaged in is for realizing windThe installation of machine. Referring to Fig. 1 to Fig. 2 c, after a Fans installation, when crane transition,Because crane is from great, brachium is long, and car load center of gravity imbalance need to be by front wind-powered electricity generation arm groupClose and dismantle, re-assembly again to next Fans lifting scene, in this process, also need dismounting to hangHook, connect the operations such as steel wire rope, whole disassembly process has expended time and manpower undoubtedly, simultaneouslyDetaching structure needs assisting vehicle to transport, and has increased transition cost.
Wind-powered electricity generation arm: a kind of light-duty jib structure, self-carrying bracket can with surpassed structure and be connected, increaseJib rigidity, the performance that hoists is high.
Surpass structure: be arranged on box principal arm, coordinate steel wire rope acting in conjunction, increase jibRigidity.
Inventor finds, at least has following problems in prior art: in prior art, and liftingWhen machine transports in transition, need to disassemble wind-powered electricity generation arm, waste time and energy, affect operating efficiency.
Summary of the invention
One of them object of the present invention is to propose a kind of crane arm and crane, in order to realizeThe transition transport of heavy-duty machine in not dismounting of crane arm situation.
For achieving the above object, the invention provides following technical scheme:
The invention provides a kind of crane arm, comprise principal arm and arm head, described arm head and described masterBetween arm, be rotatably connected.
In optional embodiment, the end of described principal arm is provided with syndeton, described connectionThe size of structure is greater than the end size of described principal arm; Described arm head and described syndeton can turnBe dynamically connected.
In optional embodiment, described in described arm head can turn to respect to described syndetonThe top of principal arm.
In optional embodiment, described syndeton is box-structure, and described box-structure is solidFix on the end of described principal arm.
In optional embodiment, crane arm also comprises assembly pulley, described in described assembly pulley is positioned atPrincipal arm top, is wound with steel wire rope on described assembly pulley, and a side of described assembly pulley is arm-tie groupPart, the opposite side of described assembly pulley is described steel wire rope; Described steel wire rope one side and super lift winchConnect, opposite side is connected with described arm-tie assembly; Described arm-tie assembly is away from described steel wire ropeOne side and bracket-rotatable are dynamically connected; In the time that described arm head starts to rotate, described assembly pulley drops on instituteState on principal arm, in the process above described arm head turns to described principal arm, described arm-tie assemblyRealize folded state.
In optional embodiment, described arm-tie assembly comprises multiple arm-ties, each adjacent described inBetween arm-tie, be rotatably connected.
In optional embodiment, be positioned at first described arm-tie of described arm head side and secondBetween described arm-tie slidably.
In optional embodiment, described arm head is wind-powered electricity generation arm.
The present invention also provides a kind of crane, comprises rising that the arbitrary technical scheme of the present invention providesWeighing arm.
Based on technique scheme, the embodiment of the present invention at least can produce following technique effect:
Before crane transition transport, arm head can be turned to the position of fitting with principal arm,Such as the side of principal arm, above or below, make the center of gravity of crane firm with this. It is visible,The crane arm that technique scheme provides can be realized crane in the transition of not dismantling in arm head situationTransport.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the applicationA part, schematic description and description of the present invention is used for explaining the present invention, not structureBecome inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is the structural representation of crane in prior art;
Fig. 2 a to Fig. 2 c is the schematic diagram that removes arm head transport in prior art;
The schematic diagram of the crane arm that Fig. 3 provides for the embodiment of the present invention in folding travel position;
Local enlarged diagram and the prior art of the crane arm that Fig. 4 provides for the embodiment of the present inventionThe comparison diagram of the local enlarged diagram of middle principal arm;
On the crane arm that Fig. 5 a to Fig. 5 e provides for the embodiment of the present invention, the folding process of arm head showsIntention.
Reference numeral:
1, principal arm; 2, arm head; 3, syndeton;
4, assembly pulley; 5, steel wire rope; 6, arm-tie assembly;
7, support; 8, connect arm-tie; 9, the steel cable that hoists;
10, suspension hook; 61, the first arm-tie; 62, the second arm-tie;
63, the 3rd arm-tie; 64, the 4th arm-tie.
Detailed description of the invention
Below in conjunction with Fig. 3～Fig. 5 e, technical scheme provided by the invention is carried out to more detailed explainingState.
The embodiment of the present invention provides a kind of crane arm, and it comprises that principal arm 1 and arm head 2 (specifically canThink wind-powered electricity generation arm), between arm head 2 and principal arm 1, be rotatably connected.
Arm head 2 is with respect to the turning top to principal arm 1 of principal arm 1, below or side, this realityExecute in example to turn to top as example.
Herein, between principal arm 1 and arm head 2, the concrete bearing pin that adopts connects, when rotating arm head 2Time, disassemble the bearing pin of junction below, allow arm head 2 rotate around the bearing pin of top, concreteCan be referring to Fig. 5 c to Fig. 5 e. The setting position of steel cable 9 and suspension hook 10 of hoisting is constant, specifically ginsengSee Fig. 4.
For fear of arm head 2 in rotation process with principal arm 1 on parts interfere, canChange the size of arm head 2, the size of change principal arm 1, or set up at both link positionsSyndeton 3 (hereinafter will describe in detail herein), think folding after parts on both provide enoughAccommodation space.
Arm head 2 to be can turn to the position of fitting with principal arm 1 as excellent, such as the side of principal arm 1,Or below, can make like this crane arm compacter above, center of gravity is more firm.
In the time of needs transition transport crane, arm head 2 is folded up, so can make craneCenter of gravity reclaim, whole crane is more firm. The lifting visible, technique scheme providesArm can be realized crane in the transition transport of not dismantling in arm head 2 situations, has improved the side of transitionJust property, has reduced transition cost.
In the present embodiment, adopt following manner to avoid interfering, the end of principal arm 1 is provided with johning knotStructure 3, the size of syndeton 3 is greater than the end size of principal arm 1; Arm head 2 and syndeton 3Be rotatably connected. The size of syndeton 3 is greater than the end size of principal arm 1, refers to johning knotThe cross sectional dimensions of structure 3 is greater than the cross sectional dimensions of principal arm 1 end. Because principal arm 1 is generally adoptedWith box-structure, box-structure is successively nested, and the size of principal arm 1 end is smaller. Johning knotThe size of structure 3 is large, taking the upper and lower shown in Fig. 4 to as reference, and syndeton 3 upper surfacesAnd space between principal arm 1 upper surface can be used for placing folding after parts on arm head 2 andParts on principal arm 1. For realizing arm head 2 folding functionals, in the present embodiment, improve arm headSyndeton 3, prevent from occurring when folding constructive interference. As shown in Figure 4, left side circle isThe old-fashioned structure at arm head place, right side circle is the Novel structure at arm head place.
In the present embodiment, arm head 2 can be turned to the top of principal arm 1 because crane have canCan travel on sky way, arm head 2 be turned to the top of principal arm 1, can not increase craneWidth, crane can be travelled on sky way safely. Arm head 2 can be with respect toSyndeton 3 turns to the top of principal arm 1, is inverted to the top of principal arm 1.
Herein, syndeton 3 also adopts box-structure, and this box-structure is fixed on principal arm 1End, shown in Figure 4.
Referring to Fig. 5 a and Fig. 5 b, it is the steel wire rope 5 of avoiding arm head 2 to surpass in rotation processGet muddled, alternatively, crane arm also comprises assembly pulley 4, and assembly pulley 4 is positioned on principal arm 1Side, is wound with steel wire rope 5 on assembly pulley 4, steel wire rope 5 is away from a side and the arm-tie of principal arm 1Assembly 6 connects, and steel wire rope 5 is connected with super lift winch near a side of principal arm 1, arm-tie assembly6 sides away from steel wire rope 5 and support 7 are rotatably connected. In the time that arm head 2 starts to rotate,Assembly pulley 4 drops on principal arm 1, in the process above arm head 2 turns to principal arm 1, and arm-tieAssembly 6 is realized folded state.
One end of support 7 and arm head 2 are rotatably connected, the other end of support 7 and arm-tie assembly6 are rotatably connected. Meanwhile, at the place that is rotationally connected of the other end of support 7 and arm-tie assembly 6Also be provided with and connect arm-tie 8, the other end that connects arm-tie 8 is also rotatably connected with arm head 2. OnState technical scheme, will surpass steel cord structure and divide for two parts, a part also adopts steel wire rope5, another part adopts arm-tie assembly 6. Steel wire rope 5 is wrapped in cunning away from the end of super lift winchOn wheels 4, be then connected with arm-tie assembly 6. In the folding process of arm head 2, be positioned at cunningSteel wire rope 5 between wheels 4 and super lift winch is by locked, arm-tie assembly 6 along with arm head 2Rotation auto-folder, avoid thus having surpassed steel wire rope 5 structures and get muddled. Connect arm-tie 8Pushed by arm head 2 with support 7, auto-folder, to the position of fitting with principal arm 1, specifically can be joinedSee Fig. 5 e.
In the present embodiment, arm-tie assembly 6 comprises multiple arm-ties, between each adjacent described arm-tieBe rotatably connected. This sentences four arm-ties are set is example, is respectively the first arm-tie 61, second and drawsPlate 62, the 3rd arm-tie 63, the 4th arm-tie 64.
Further, referring to Fig. 5 d, be positioned at first arm-tie (i.e. the 4th arm-tie of arm head 2 sides64) slidably, specifically can pass through slotted hole and between second arm-tie (i.e. the 3rd arm-tie 63)Realization is rotatably connected. So arrange, these two arm-ties can regulate total length automatically, to meetFolding requirement.
Referring to Fig. 5 a to Fig. 5 e, in the time that arm head 2 turns to the first angle, be close to assembly pulley 4The first arm-tie 61 lain on principal arm 1; Be rotated further to approximately perpendicular to principal arm at arm head 2, the second arm-tie 62 that is close to assembly pulley 4 is also lain on principal arm 1 when 1 the position; ?When arm head 2 is rotated further to the position of laminating principal arm 1, other the 3rd arm-tie 63, the 4th arm-tie64 are lain on principal arm 1, realize the auto-folder of arm-tie assembly 6 with this.
The crane arm that technique scheme provides, the convenience of putting forth effort on dismounting use becomes with transitionThis reduction, therefore, crane arm global design is succinct, the dismounting quantity of parts while reducing transition,Be convenient to assembling and transport.
The embodiment of the present invention also provides a kind of crane, comprises that the arbitrary technical scheme of the present invention carriesThe crane arm of confession.
The crane that technique scheme provides, crane arm is folding structure, transition process is economizedRemove dismounting arm head 2, dismounting suspension hook, connected steel wire rope 5 and assistant conveyance vehicle, greatlyReduce transition cost, promoted transition efficiency.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally "," laterally ", 'fornt', 'back', " left side ", " right side ", " vertically ", " level ",Orientation or the position relationship of the instruction such as " top ", " end ", " interior ", " outward " are based on attachedOrientation shown in figure or position relationship, be only for ease of describing the present invention and simplified characterization, and notThat instruction or the device of inferring indication or element must have specific orientation, be specific orientationStructure and operation, thereby can not be interpreted as the restriction of the present invention being protected to content.
If used the word such as " first ", " second " to limit parts herein,Those skilled in the art should know: the use of " first ", " second " is only used to justIn describing the present invention and simplified characterization, as not statement in addition, it is special that above-mentioned word does not haveImplication.
Finally it should be noted that: above embodiment is only in order to technical scheme of the present invention to be described, andNon-to its restriction; Although the present invention is had been described in detail with reference to previous embodiment, abilityThe those of ordinary skill in territory is to be understood that: the skill that it still can be recorded aforementioned each embodimentArt scheme is modified, or part technical characterictic is wherein equal to replacement, but these are repaiiedChange or replace, not making the essence of appropriate technical solution depart from various embodiments of the present invention technical sideThe spirit and scope of case.
Claims (9)
1. a crane arm, is characterized in that, comprises principal arm (1) and arm head (2), described inBetween arm head (2) and described principal arm (1), be rotatably connected.
2. crane arm according to claim 1, is characterized in that, described principal arm (1)End be provided with syndeton (3), the size of described syndeton (3) is greater than described masterThe end size of arm (1); Described arm head (2) is rotatably connected with described syndeton (3).
3. crane arm according to claim 2, is characterized in that, described arm head (2)Can turn to respect to described syndeton (3) top of described principal arm (1).
4. crane arm according to claim 2, is characterized in that, described syndeton (3)For box-structure, described box-structure is fixed on the end of described principal arm (1).
5. according to the arbitrary described crane arm of claim 1-4, it is characterized in that, also comprise cunningWheels (4), described assembly pulley (4) is positioned at described principal arm (1) top, described assembly pulley (4)On be wound with steel wire rope (5), a side of described assembly pulley (4) is arm-tie assembly (6), instituteThe opposite side of stating assembly pulley (4) is described steel wire rope (5); Described steel wire rope (5) one sides withSuper lift winch connects, and opposite side is connected with described arm-tie assembly (6); Described arm-tie assembly (6)A side and support (7) away from described steel wire rope (5) are rotatably connected; When described arm head (2)While starting to rotate, it is upper that described assembly pulley (4) drops on described principal arm (1), in described arm head (2)Turn in the process of described principal arm (1) top, described arm-tie assembly (6) is realized rugosityState.
6. crane arm according to claim 5, is characterized in that, described arm-tie assembly (6)Comprise multiple arm-ties, between each adjacent described arm-tie, be rotatably connected.
7. crane arm according to claim 6, is characterized in that, is positioned at described arm head (2)Between first described arm-tie of side and second described arm-tie slidably.
8. according to the arbitrary described crane arm of claim 1-4, it is characterized in that described arm head(2) be wind-powered electricity generation arm.
9. a crane, is characterized in that, comprises the arbitrary described lifting of claim 1-8Arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610123871.1A CN105584942A (en) | 2015-11-24 | 2016-03-04 | Crane arm and crane |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828088 | 2015-11-24 | ||
| CN2015108280880 | 2015-11-24 | ||
| CN201610123871.1A CN105584942A (en) | 2015-11-24 | 2016-03-04 | Crane arm and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105584942A true CN105584942A (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610123871.1A Pending CN105584942A (en) | 2015-11-24 | 2016-03-04 | Crane arm and crane |
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| CN (1) | CN105584942A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0733584A1 (en) * | 1995-03-22 | 1996-09-25 | Potain | Automatic erection for a crane with a foldable boom |
| CN101962156A (en) * | 2010-10-18 | 2011-02-02 | 南京工业大学 | Foldable fast-loading tower crane |
| CN102029033A (en) * | 2009-09-28 | 2011-04-27 | 徐州重型机械有限公司 | Folding arm support and elevating fire truck comprising same |
| CN202449765U (en) * | 2012-02-06 | 2012-09-26 | 徐工集团工程机械股份有限公司 | Pulling plate folding limiting device for crane and pulling plate assembly |
| CN202704895U (en) * | 2012-07-20 | 2013-01-30 | 辽宁抚挖重工机械股份有限公司 | Articulated boom of crawler crane |
| CN204727505U (en) * | 2015-05-20 | 2015-10-28 | 河南省恒远起重机械集团有限公司 | A kind of truss structure formula wheel-mounted crane |
-
2016
- 2016-03-04 CN CN201610123871.1A patent/CN105584942A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0733584A1 (en) * | 1995-03-22 | 1996-09-25 | Potain | Automatic erection for a crane with a foldable boom |
| CN102029033A (en) * | 2009-09-28 | 2011-04-27 | 徐州重型机械有限公司 | Folding arm support and elevating fire truck comprising same |
| CN101962156A (en) * | 2010-10-18 | 2011-02-02 | 南京工业大学 | Foldable fast-loading tower crane |
| CN202449765U (en) * | 2012-02-06 | 2012-09-26 | 徐工集团工程机械股份有限公司 | Pulling plate folding limiting device for crane and pulling plate assembly |
| CN202704895U (en) * | 2012-07-20 | 2013-01-30 | 辽宁抚挖重工机械股份有限公司 | Articulated boom of crawler crane |
| CN204727505U (en) * | 2015-05-20 | 2015-10-28 | 河南省恒远起重机械集团有限公司 | A kind of truss structure formula wheel-mounted crane |
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Application publication date: 20160518 |
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| RJ01 | Rejection of invention patent application after publication |