CN109553009A - The cantilever crane method for dismounting of cantilever crane and crane - Google Patents
The cantilever crane method for dismounting of cantilever crane and crane Download PDFInfo
- Publication number
- CN109553009A CN109553009A CN201811505713.8A CN201811505713A CN109553009A CN 109553009 A CN109553009 A CN 109553009A CN 201811505713 A CN201811505713 A CN 201811505713A CN 109553009 A CN109553009 A CN 109553009A
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- China
- Prior art keywords
- arm joint
- arm
- lower boom
- boom
- cantilever crane
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Classifications
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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
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The present invention relates to crane technical fields, and in particular to the cantilever crane method for dismounting of a kind of cantilever crane and crane.The cantilever crane includes multiple hinged seats and multiple arm joints, each hinged seat includes fixed part and the articulated section for being connected to fixed part, fixed part is connected in one end of the lower boom of each arm joint, articulated section is located at the downside of the lower boom and tilts down extension from one end of the lower boom towards the abutting end of the lower boom of adjacent arm joint, articulated section is formed with hinge hole, articulated section be set as can with lower boom around articulated shaft rotation and synchronous rotary, so that the central axis of the hinge hole of the articulated section at the abutting end of the lower boom of the central axis energy and adjacent arm joint of hinge hole switches between first state parallel to each other and the second state to coincide with one another, two neighboring hinged seat can be hinged by the articulation piece across two hinge holes in the second state.The cantilever crane can make to connect by the way of hinged between the lower boom of two neighboring arm joint by hinged seat.
Description
Technical field
The present invention relates to crane technical fields, more particularly to a kind of cantilever crane and the cantilever crane method for dismounting of crane.
Background technique
Crane refers to more movement hoisting machineries of vertical-lift in a certain range and horizontal carrying heavy goods.Wherein, it rises
Weighing arm is a critically important device on crane, is primarily used to support container hoist, and it is certain to have unloader
Lifting altitude and width.Crane arm is made of multiple arm joints, carried out between each arm joint it is detachably connected, in order to realize
Disassembly and assembling between multiple arm joints.
But carried out hingedly between the knock-off joint that winds up of the two neighboring arm joint of crane by articulated shaft, it is two neighboring
It connects by pin shaft between the lower edge knock-off joint of arm joint or the connection types such as is bolted and installation is fixed, cause adjacent two
The lower boom joint of a arm joint has no lower link point, cause can not to make when dismantling arm joint arm joint to be torn open wind up knock-off joint around
The lower link point is rotated, cause arm joint to be torn open by be horizontally mounted originally state it is mobile to hang state from above vertically during
The problems such as being easy to happen unstable movement, winding wire ropes, removal efficiency is low.
Summary of the invention
The purpose of the invention is to overcome the lower edge knock-off joint of the two neighboring arm joint of crane of the existing technology
It is fixedly mounted and causes smoothly be converted to the problem of hanging state from above vertically when tearing arm joint open in disassembly, a kind of cantilever crane is provided
And hinged seat can be connected to the side of the lower boom of arm joint by the cantilever crane method for dismounting of crane, the cantilever crane, be conducive to for
Strong support is provided using hinged connection type between the lower boom of two neighboring arm joint, structure is simple, is easily installed.
To achieve the goals above, one aspect of the present invention provides a kind of cantilever crane, the cantilever crane include multiple hinged seats and
Multiple arm joints of linear property arrangement, the top boom of the two neighboring arm joint is hinged by articulated shaft, the two neighboring arm
The lower boom of section is detachably connected, and each hinged seat includes fixed part and the articulated section for being connected to the fixed part, institute
State one end that fixed part is connected to the lower boom of each arm joint, the articulated section be arranged in the downside of the lower boom and from
The abutting end of one end of the lower boom towards the lower boom of adjacent arm joint tilts down extension, is formed on the articulated section hinged
Hole is connect, the articulated section is configured to synchronize rotation around the rotation of the articulated shaft with the lower boom, so that
The central axis for obtaining the hinge hole can be with the center of the hinge hole of the articulated section at the abutting end of the lower boom of adjacent arm joint
Axis switches between first state parallel to each other and the second state to coincide with one another, and the two neighboring hinged seat can lead to
Cross across in second state two hinge holes articulation piece it is hinged.
Preferably, the fixed part includes connector, connecting plate and the fixed plate connecting with the articulated section, described solid
Fixed board is configured to resist the bottom surface of the lower boom, and the connecting plate is configured to be used to support in the lower boom
Top surface, and the fixed plate and the connecting plate are detachably connected by the connector.
Preferably, the midfoot support of the fixed plate is on the lower boom and the two sides of the fixed plate are respectively formed
There is the first mounting hole, the two sides that the lower boom and the connecting plate are resisted in the middle part of the connecting plate are respectively formed with second
Mounting hole, the connector include the fastener for being separately positioned on the lower boom two sides, and the fastener passes through described
First mounting hole and first mounting hole simultaneously fix the fixed plate and connecting plate.
Preferably, the articulated section is set as plate, and one end of the plate is vertically connected at the fixed plate and another
End is formed with the hinge hole.
Preferably, the articulated section includes two plates for being arranged in parallel and keeping interval, two plates
The central axis of hinge hole is overlapped.
Preferably, the cantilever crane includes adjustment structure, and the adjustment structure includes that adjusting rod and setting are winded up described
The baffle and fixing piece of the upside of bar, the fixing piece and the baffle are separately fixed at the fixation of the two neighboring hinged seat
Portion, one end of the adjusting rod is movably connect with the fixing piece and other end backstop is in the baffle, the adjusting
Bar along the lower boom length direction extend and be set as along itself extending direction activity it is adjustable.
Preferably, the adjusting rod is set as screw rod, and the fixing piece includes the nut being spirally connected with the screw rod and fixation
It is connected to the adjustable plate of the fixed part, the adjustable plate is arranged along the extending direction perpendicular to the screw rod, and the nut is solid
It is scheduled on the adjustable plate, one end of the screw rod sequentially passes through the adjustable plate, the nut and backstop in the baffle.
Preferably, the baffle is arranged along the extending direction perpendicular to the screw rod；And/or the articulation piece is set as connecting
Outbound axis.
A kind of cantilever crane method for dismounting of crane is additionally provided according to a second aspect of the present invention, and the crane includes machine
Body, lifting mechanism, arm disassembly device and the cantilever crane, the cantilever crane include n arm joint of linear property arrangement, the cantilever crane
Head end arm joint be set as the first arm joint, the end arm joint of the cantilever crane is set as the n-th arm joint, the head end peace of the lower boom of the n-th arm joint
Equipped with the first hinged seat, first hinged seat includes the first articulated section for being formed with the first hinge hole, the lower edge of the (n-1)th arm joint
The end of bar is equipped with the second hinged seat, and second hinged seat is formed with the second hinge hole, and the fuselage is respectively with described
One arm joint and the lifting mechanism are detachably connected, and the lifting mechanism includes the steel wire for hanging each arm joint
Rope；
The cantilever crane method for dismounting includes:
The connection of the lower boom of S1, the lower boom of disassembly n-th arm joint and (n-1)th arm joint, and actuate described n-th
Articulated shaft rotation of the lower boom of arm joint between the top boom of n-th arm joint and the top boom of (n-1)th arm joint, with band
First articulated section is moved with the lower boom synchronous rotary of the n-th arm joint, until the central axis of first hinge hole and institute
Until the central axis coincidence for stating the second hinge hole；
S2, the articulation piece is run through into first hinge hole and second hinge hole, so that the lower edge of the n-th arm joint
Bar and the lower boom of the (n-1)th arm joint are hinged；
S3, arm disassembly device is mounted on the (n-1)th arm joint top boom end top, make the steel wire of the lifting mechanism
Rope is around the arm disassembly device and is fixed in n-th arm joint, and adjusts the wirerope and be in tight state；
Articulated shaft between S4, the top boom for removing n-th arm joint and the top boom of (n-1)th arm joint, meanwhile, it opens
The lifting mechanism is opened, so that n-th arm joint is rotated down under the pulling force effect of wirerope around the articulation piece and institute
It states wirerope and is in tight state always, until the end of n-th arm joint is downward, in the top boom of n-th arm joint
Upper mounting fixing parts are to limit the wirerope；
S5, the articulation piece is removed, so that the lower boom of n-th arm joint is detached from the lower boom of (n-1)th arm joint；
S6, n-th arm joint hanging is dropped to by ground by the wirerope.
Preferably, the crane includes tearing arm component and support rope component open, and the arm component of tearing open is arranged in the crane
The top of the top boom for the arm joint of cantilever crane being located between the arm joint to be torn open and first arm joint, the support rope component setting
In the top for being located at the arm joint to be torn open and the top boom for tearing the arm joint between arm component open of the crane arm support, in step
In rapid S3, bypasses the wirerope of the lifting mechanism successively and described tear arm component, support rope component and arm disassembly device open.
Through the above technical solutions, the present invention provides the cantilever crane method for dismounting of a kind of cantilever crane and crane, the cantilever crane energy
The side of enough lower booms that hinged seat is connected to arm joint is conducive to use hingedly between the lower boom for two neighboring arm joint
Connection type provides strong support, and structure is simple, is easily installed.
Detailed description of the invention
Fig. 1 is a kind of in running order structural schematic diagram of crane arm support provided by the invention；
Fig. 2 is the enlarged diagram of part A shown in FIG. 1；
Fig. 3 is that a kind of lower boom of the two neighboring arm joint of crane arm support provided by the invention initially sets up hinge joint
Structural schematic diagram；
Fig. 4 is the enlarged diagram of part B shown in Fig. 3；
Fig. 5 is after a kind of lower boom of the two neighboring arm joint of crane arm support provided by the invention establishes hinge joint, to
Tear the arm joint structural schematic diagram fixed by hoist rope open；
Fig. 6 is after a kind of lower boom of the two neighboring arm joint of crane arm support provided by the invention establishes hinge joint, to
Tear the structural schematic diagram that arm joint falls around hinge joint rotation open；
Fig. 7 be a kind of two neighboring arm joint of crane arm support provided by the invention lower boom remove hinge joint after, to
It tears arm joint open and hangs the structural schematic diagram to fall vertically under the effect of hanging in hoist rope.
Description of symbols
1, articulated section；2, fixed part；3, articulation piece；4, connecting plate；5, fixed plate；6, adjustment structure；7, the (n-1)th arm joint；
8, the n-th arm joint；9, wirerope；10, arm disassembly device；11, the first articulated section；12, the first hinge hole；13, the first fixed part；14,
Baffle；16, the lower boom of the n-th arm joint；21, the second articulated section；22, the second hinge hole；23, the second fixed part；24, adjusting rod；
25, adjustable plate；26, the lower boom of the (n-1)th arm joint；27, nut.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Provide a kind of cantilever crane according to a first aspect of the present invention, as shown in Figs. 1-5, the cantilever crane include multiple hinged seats with
And multiple arm joints that linearly property is arranged, the top boom of the two neighboring arm joint is hinged by articulated shaft, two neighboring described
The lower boom of arm joint is detachably connected, and each hinged seat includes fixed part 2 and the articulated section for being connected to the fixed part 2
1, the fixed part 2 is connected to one end of the lower boom of each arm joint, and the downside of the lower boom is arranged in the articulated section 1
And extension is tilted down from one end of the lower boom towards the abutting end of the lower boom of adjacent arm joint, on the articulated section 1
It is formed with hinge hole, the articulated section 1 is configured to synchronize with the lower boom around the rotation of the articulated shaft
Rotation, so that the central axis of the hinge hole can be with the hinge of the articulated section 1 at the abutting end of the lower boom of adjacent arm joint
The central axis for connecing hole switches between first state parallel to each other and the second state to coincide with one another, the two neighboring hinge
Joint chair can be hinged by passing through the articulation piece 3 of two hinge holes in second state.Specifically, each arm joint
Including a pair of of lower boom and a pair of of top boom, a pair of lower boom is parallel to each other and keeps interval and is consolidated by intermediate supports beam
Fixed connection, a pair of lower boom is parallel to each other and keeps being spaced and being fixedly connected by middle brace rod, each arm joint it is every
A top boom respectively with the top boom of adjacent arm joint being correspondingly arranged with the top boom by hinged axis connection, each arm joint it is every
Be respectively arranged with hinged seat on a lower boom so that each lower boom of each arm joint respectively with adjacent arm joint and the lower edge
The lower boom that bar is correspondingly arranged carried out by articulation piece it is hinged, thus under realizing being correspondingly arranged of the two neighboring arm joint
Chord member is detachably connected.
Through the above technical solutions, the present invention provides the cantilever crane method for dismounting of a kind of cantilever crane and crane, the cantilever crane energy
The side of enough lower booms that hinged seat is connected to arm joint is conducive to use hingedly between the lower boom for two neighboring arm joint
Connection type provides strong support, and structure is simple, is easily installed.
Further, the fixed part 2 includes connector, connecting plate 4 and the fixed plate 5 connecting with the articulated section 1,
The fixed plate 5 is configured to resist the bottom surface of the lower boom, and the connecting plate 4 is configured to be used to support described
The top surface of lower boom, and the fixed plate 5 and the connecting plate 4 are detachably connected by the connector, it is easy to disassemble
And assembling, be conducive between the lower boom of original arm joint using non-rotatable connection type (for example, being connected by bolt
Connect, either, by pin shaft connection but it is non-rotatable) on the basis of be mounted directly so that original arm joint structure to be improved to down
It is connected by the way of hinged between chord member, improves the disassembly safety of existing arm joint structure, structure is simple, at low cost.
In order to be simplified to fix the structure and disassembling operations in portion 2, and the recycling rate of waterused of connector is improved, reduces cost,
The connector can use fastener.For example, the midfoot support of the fixed plate 5 is on the lower boom and the fixation
The two sides of plate 5 are respectively formed with the first mounting hole, and the middle part of the connecting plate 4 resists the lower boom and the connecting plate 4
Two sides be respectively formed with the second mounting hole, the connector includes the fastening for being separately positioned on the lower boom two sides
Part, the fastener pass through first mounting hole and first mounting hole and fix the fixed plate 5 and connecting plate 4.
Wherein, fastener can be set to bolt and nut component.
As shown in Figures 2 and 4, the articulated section 1 is set as plate, and one end of the plate is vertically connected at the fixed plate 5
And the other end is formed with the hinge hole, the installation position of the hinged seat between lower boom convenient for designing and observing adjacent arm joint
Set, between the hinge hole for the hinged seat installed on the lower boom to guarantee adjacent arm joint can more accurately by initially installing when
Locating first state is switched to the second state, improves the hinged stability between the two neighboring hinged seat, safely may be used
It leans on.
Further, the articulated section 1 includes two plates for being arranged in parallel and keeping interval, two plates
Hinge hole central axis be overlapped, be conducive to further increase the hinged stability between two hinged seats, so that adjacent two
The spaced winding articulation piece of a arm joint carries out relative rotation can be more steady.
According to the present invention, it in existing crane arm support, can be connected by pin shaft between two neighboring arm joint, but not
It is rotatable, wherein one end of the pin shaft is fixedly connected on the end face of the lower boom of one of arm joint, under adjacent arm joint
The adjacent connecting ends of chord member are equipped with mounting hole, and the other end of the pin shaft, which can be contained in the mounting hole, to be limited, so that
The lower boom for obtaining the arm joint can be detachably connected by the adjacent connecting ends of pin shaft and the lower boom of adjacent arm joint.In cantilever crane
When carrying out tearing arm operation open in the air, in order to keep the lower boom between two neighboring arm joint easy to disassemble, i.e., under one of arm joint
The pin shaft connected on the end face of chord member can quickly, smoothly from the mounting hole of the adjacent connecting ends of the lower boom of adjacent arm joint
Middle removal, the cantilever crane further include the adjustment structure 6 for assisting removing pin shaft.For example, the cantilever crane includes adjustment structure 6,
The adjustment structure 6 includes the baffle 14 and fixing piece of adjusting rod 24 and the upside that the top boom is arranged in, the fixation
Part and the baffle 14 are separately fixed at the fixed part 2 of the two neighboring hinged seat, one end of the adjusting rod 24 with it is described
Fixing piece movably connects and other end backstop is in the baffle 14, and the adjusting rod 24 is along the length side of the lower boom
To extend and be set as along itself extending direction activity it is adjustable.In use, by by adjusting rod along towards baffle 14
Direction is mobile, the relative distance between Lai Zeng great fixing piece and baffle 14, and then between the lower boom of the two neighboring arm joint of adjusting
It is located remotely from each other, to assist the pin shaft that will be connected on the end face of the lower boom of one of arm joint from the lower boom of adjacent arm joint
It is removed in the mounting hole of adjacent connecting ends.
Use cost and operation ease in order to balance, the adjusting rod 24 are set as screw rod, and the fixing piece includes and institute
The nut 27 and the adjustable plate 25 for being fixedly connected on the fixed part 2 that screw rod is spirally connected are stated, the adjustable plate 25 is along perpendicular to institute
The extending direction setting of screw rod is stated, the nut 27 is fixed on the adjustable plate 25, and one end of the screw rod sequentially passes through institute
It states adjustable plate 25, the nut 27 and backstop is in the baffle 14, easy to process and production is easy to operate.In use, using pulling
Hand binding nut 27 simultaneously drives nut to rotate, so that along the length direction and adjusting rod of adjusting rod relative displacement occurs for nut,
It cannot relatively move, lead to adjusting rod and consolidate with fixed part since nut is fixedly connected by adjustable plate 25 with fixed part
Determine portion to relatively move, for example, adjusting rod (that is, screw rod) edge is moved towards the direction of baffle 14, since one end of screw rod is stopped
It is blocked in baffle, and then causes baffle mobile far from the direction of adjustable plate 25 in the traction lower edge of screw rod, so that adjacent
It is separated from each other between the end of the lower boom of two arm joints, it is, by being connected on the end face of the lower boom of one of arm joint
Pin shaft removed from the mounting hole of the adjacent connecting ends of the lower boom of adjacent arm joint.Wherein, fixing piece can be set to various
Rational structure, for example, fixing piece can be set to the slab construction with screw hole, screw rod is screwed onto the screw hole.
Further, for the baffle 14 along the extending direction setting perpendicular to the screw rod, being conducive to screw rod can be more
Firmly backstop improves the fitment stability of adjusting rod and baffle in the moving process of adjusting rod on baffle 14.
Further, the articulation piece 3 is set as connection pin shaft, and structure is simple, easy for removal and installation, at low cost.For example,
Articulation piece 3 includes the pin shaft that split pin and end have the mounting hole radially opened up, and pin shaft runs through in the second state
Two hinge holes and end carry out backstop by split pin, and structure is simple, and pin shaft is avoided to carry out in the lower boom of adjacent arm joint
Axial displacement occurs when relative rotation, securely and reliably.
Second aspect of the present invention provides a kind of cantilever crane method for dismounting of crane, as shown in figs. 1-7, the crane packet
Fuselage, lifting mechanism, arm disassembly device 10 and the cantilever crane are included, the cantilever crane includes n arm joint of linear property arrangement, institute
The head end arm joint for stating cantilever crane is set as the first arm joint, and the end arm joint of the cantilever crane is set as the n-th arm joint 8, the lower boom of the n-th arm joint 8
16 head end is equipped with the first hinged seat, and first hinged seat includes the first articulated section 11 for being formed with the first hinge hole 12,
The end of the lower boom 26 of (n-1)th arm joint 7 is equipped with the second hinged seat, and second hinged seat is formed with the second hinge hole 22,
The fuselage is detachably connected with first arm joint and the lifting mechanism respectively, and the lifting mechanism includes for hanging
The wirerope 9 of each arm joint；Certainly, as shown in Figures 2 and 4, the first hinged seat includes the first fixed part 13, for being fixed on
The side of the neighbouring head end of the lower boom 16 of n-th arm joint 8, the second hinged seat includes the second fixed part 23, for being fixed on (n-1)th
The side of the adjacent end of the lower boom 26 of arm joint 7, the second hinged seat include the second articulated section connecting with the second fixed part 23
21, the second articulated section 21 is formed with the second hinge hole；
The cantilever crane method for dismounting includes:
The connection of the lower boom of S1, the lower boom 16 of disassembly n-th arm joint 8 and (n-1)th arm joint 7, and actuate institute
It is hinged between the top boom of n-th arm joint 8 and the top boom of (n-1)th arm joint 7 to state the lower boom 16 of the n-th arm joint 8
Axis rotation, to drive first articulated section 11 with 16 synchronous rotary of lower boom of the n-th arm joint 8, until described first is hinged
Until the central axis in hole 12 is overlapped with the central axis of second hinge hole 22；A kind of specific embodiment party according to the present invention
Formula when initial, is in pin as illustrated in fig. 1 and 2 between the lower boom 16 of the n-th arm joint 8 and the lower boom of (n-1)th arm joint 7
The state of axis connection, with the n-th arm joint 8 lower boom 16 around n-th arm joint 8 top boom and (n-1)th arm joint 7 it is upper
Articulated shaft rotation between chord member, drives the first hinge hole to be switched to the second hinge hole by first state as illustrated in fig. 1 and 2
Second state as shown in Figures 3 and 4, meanwhile, between the lower boom of the lower boom 16 of the n-th arm joint 8 and (n-1)th arm joint 7
In the state being separated from each other as shown in Figures 3 and 4；
S2, the articulation piece 3 is run through into first hinge hole 12 and second hinge hole 22, so that the n-th arm joint 8
Lower boom 16 and the (n-1)th arm joint 7 lower boom it is hinged；
S3, as shown in figure 5, arm disassembly device 10 to be mounted on to the top of the end of the top boom of the (n-1)th arm joint 7, make described
The wirerope 9 of lifting mechanism is around the arm disassembly device 10 and is fixed in n-th arm joint 8, and adjusts at the wirerope 9
In tight state；
Articulated shaft between S4, the top boom for removing n-th arm joint 8 and the top boom of (n-1)th arm joint 7, meanwhile,
The lifting mechanism is opened, so that n-th arm joint 8 is rotated down simultaneously under the pulling force effect of wirerope 9 around the articulation piece 3
And the wirerope 9 is in tight state always, until the end of n-th arm joint 8 is downward, in n-th arm joint 8
Mounting fixing parts are conducive to the n-th arm joint 8 in S6 under the hanging of wirerope 9 to limit to the wirerope 9 on top boom
It is more smoothly down to ground, avoids the n-th arm joint 8 from occurring rotating during decline or situations such as winding wire ropes；Into one
Step, as shown in fig. 6, the n-th arm joint 8 can be rotated down any reasonable angle, as long as guaranteeing the end of the position of the n-th arm joint 8
Downwards, the n-th arm joint 8 is rotated down 90 ° at end；
S5, the articulation piece 3 is removed, so that the lower boom 16 of n-th arm joint 8 is detached from the lower edge of (n-1)th arm joint 7
Bar 26；
S6, ground is dropped to as shown in fig. 7, hanging n-th arm joint 8 by the wirerope 9.
Further, the crane includes tearing arm component and support rope component open, and the arm component of tearing open is arranged in the lifting
The top of the top boom for the arm joint of horn frame being located between the arm joint to be torn open and first arm joint, the support rope component are set
It sets in the top for being located at the arm joint to be torn open and the top boom for tearing the arm joint between arm component open of the crane arm support,
In step S3, the wirerope 9 of the lifting mechanism is made successively to tear arm component, support rope component and arm disassembly device 10 open around described.Example
Such as, arm component, support rope component and arm disassembly device are torn open and is set as fixed pulley structure, specifically, tearing arm component, support rope component open and tearing arm open
Device includes pulley and pulley bracket, and one end of pulley bracket is fixed on top boom and upwardly extends, the other end be used for
Pulley is rotatably attached, and wirerope is wound on pulley.Further, crane includes tensioning apparatus, and the tensioning apparatus is set
Being located on the lower boom torn open between arm component and arm disassembly device in cantilever crane is set, by the way that wirerope to be wound on tensioning apparatus, is had
It is in tight state, i.e. tension always conducive to wirerope is adjusted.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited thereto.At this
It, can be with various simple variants of the technical solution of the present invention are made, in order to avoid unnecessary in the range of the technology design of invention
It repeats, the invention will not be further described in various possible combinations.But these simple variants and combination equally should be considered as
Content disclosed in this invention, all belongs to the scope of protection of the present invention.
Claims (10)
1. a kind of cantilever crane, which is characterized in that the cantilever crane includes multiple arm joints of multiple hinged seats and the arrangement of linear property, phase
The top boom of adjacent two arm joints is hinged by articulated shaft, and the lower boom of the two neighboring arm joint is detachably connected, often
A hinged seat includes fixed part (2) and the articulated section (1) for being connected to the fixed part (2), and the fixed part (2) is connected to
One end of the lower boom of each arm joint, the articulated section (1) are arranged in the downside of the lower boom and from the lower booms
The abutting end of one end towards the lower boom of adjacent arm joint tilts down extension, is formed with hinge hole on the articulated section (1), institute
It states articulated section (1) to be configured to synchronize rotation around the rotation of the articulated shaft with the lower boom, so that institute
The central axis for stating hinge hole can be with the central axis of the hinge hole of the articulated section (1) at the abutting end of the lower boom of adjacent arm joint
Line switches between first state parallel to each other and the second state to coincide with one another, and the two neighboring hinged seat can pass through
Articulation piece (3) across two hinge holes in second state is hinged.
2. cantilever crane according to claim 1, which is characterized in that the fixed part (2) include connector, connecting plate (4) with
And the fixed plate (5) connecting with the articulated section (1), the fixed plate (5) are configured to resist the bottom surface of the lower boom,
The connecting plate (4) is configured to be used to support in the top surface of the lower boom, and the fixed plate (5) and the connection
Plate (4) is detachably connected by the connector.
3. cantilever crane according to claim 2, which is characterized in that the midfoot support of the fixed plate (5) is in the lower boom
The two sides of the upper and described fixed plate (5) are respectively formed with the first mounting hole, resist the lower edge in the middle part of the connecting plate (4)
The two sides of bar and the connecting plate (4) are respectively formed with the second mounting hole, and the connector includes for being separately positioned on
State the fastener of lower boom two sides, the fastener passes through first mounting hole and first mounting hole and by the fixation
Plate (5) and connecting plate (4) are fixed.
4. cantilever crane according to claim 3, which is characterized in that the articulated section (1) is set as plate, one end of the plate
It is vertically connected at the fixed plate (5) and the other end is formed with the hinge hole.
5. cantilever crane according to claim 4, which is characterized in that the articulated section (1) includes being arranged in parallel and keeping being spaced
Two plates, the central axis of the hinge hole of two plates is overlapped.
6. cantilever crane described in any one of -5 according to claim 1, which is characterized in that the cantilever crane includes adjustment structure (6),
The adjustment structure (6) includes the baffle (14) and fixing piece of adjusting rod (24) and the upside that the top boom is arranged in, institute
It states fixing piece and the baffle (14) is separately fixed at the fixed part (2) of the two neighboring hinged seat, the adjusting rod (24)
One end movably connect with the fixing piece and other end backstop is in the baffle (14), the adjusting rod (24) is along institute
State lower boom length direction extend and be set as along itself extending direction activity it is adjustable.
7. cantilever crane according to claim 6, which is characterized in that the adjusting rod (24) is set as screw rod, the fixing piece packet
Include the nut (27) being spirally connected with the screw rod and the adjustable plate (25) for being fixedly connected on the fixed part (2), the adjustable plate
(25) it is arranged along the extending direction perpendicular to the screw rod, the nut (27) is fixed on the adjustable plate (25), the spiral shell
One end of bar sequentially passes through the adjustable plate (25), the nut (27) and backstop in the baffle (14).
8. cantilever crane according to claim 7, which is characterized in that the baffle (14) is along the extension side perpendicular to the screw rod
To setting；
And/or the articulation piece (3) is set as connection pin shaft.
9. a kind of cantilever crane method for dismounting of crane, which is characterized in that the crane includes fuselage, lifting mechanism, tears arm dress open
(10) and according to claim 1 cantilever crane described in any one of -8 are set, the cantilever crane includes n arm of linear property arrangement
Section, the head end arm joint of the cantilever crane are set as the first arm joint, and the end arm joint of the cantilever crane is set as the n-th arm joint (8), the n-th arm joint (8)
The head end of lower boom (16) the first hinged seat is installed, first hinged seat includes be formed with the first hinge hole (12) the
One articulated section (11), the end of the lower boom (26) of the (n-1)th arm joint (7) are equipped with the second hinged seat, the second hinged seat shape
At having the second hinge hole (22), the fuselage is detachably connected with first arm joint and the lifting mechanism respectively, described
Lifting mechanism includes the wirerope (9) for hanging each arm joint；
The cantilever crane method for dismounting includes:
The connection of the lower boom of S1, the lower boom (16) of disassembly n-th arm joint (8) and (n-1)th arm joint (7), and actuate
The lower boom (16) of n-th arm joint (8) is around the top boom of n-th arm joint (8) and the top boom of (n-1)th arm joint (7)
Between articulated shaft rotation, to drive first articulated section (11) with lower boom (16) synchronous rotary of the n-th arm joint (8),
Until the central axis of first hinge hole (12) is overlapped with the central axis of second hinge hole (22)；
S2, the articulation piece (3) are run through into first hinge hole (12) and second hinge hole (22), so that the n-th arm
The lower boom (16) for saving (8) and the lower boom of the (n-1)th arm joint (7) are hinged；
S3, arm disassembly device (10) is mounted on the (n-1)th arm joint (7) top boom end top, make the lifting mechanism
Wirerope (9) is around the arm disassembly device (10) and is fixed on n-th arm joint (8), and adjusts the wirerope (9) and be in
Tight state；
Articulated shaft between S4, the top boom for removing n-th arm joint (8) and the top boom of (n-1)th arm joint (7), meanwhile,
The lifting mechanism is opened, so that n-th arm joint (8) is downward around the articulation piece (3) under the pulling force effect of wirerope (9)
It rotates and the wirerope (9) is in tight state always, until the end of n-th arm joint (8) is downward, described
Mounting fixing parts are on the top boom of n-th arm joint (8) to limit the wirerope (9)；
S5, the articulation piece (3) is removed, so that the lower boom (16) of n-th arm joint (8) is detached from (n-1)th arm joint (7)
Lower boom (26)；
S6, n-th arm joint (8) hanging is dropped to by ground by the wirerope (9).
10. the cantilever crane method for dismounting of crane according to claim 9, which is characterized in that the crane includes tearing arm open
Component and support rope component, it is described tear that arm component is arranged in the crane arm support open be located at the arm joint to be torn open and first arm
The arm joint to be torn open described in of the crane arm support is arranged in the top of the top boom of arm joint between section, the support rope component
And the top of the top boom for tearing the arm joint between arm component open, in step s3, make the wirerope (9) of the lifting mechanism according to
It is secondary to tear arm component, support rope component and arm disassembly device (10) open around described.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505713.8A CN109553009B (en) | 2018-12-10 | 2018-12-10 | Boom and boom dismounting method of crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505713.8A CN109553009B (en) | 2018-12-10 | 2018-12-10 | Boom and boom dismounting method of crane |
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| Publication Number | Publication Date |
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| CN109553009A true CN109553009A (en) | 2019-04-02 |
| CN109553009B CN109553009B (en) | 2020-04-24 |
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| CN201811505713.8A Active CN109553009B (en) | 2018-12-10 | 2018-12-10 | Boom and boom dismounting method of crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111516925A (en) * | 2020-05-12 | 2020-08-11 | 湖南中联重科建筑起重机械有限责任公司 | Tower crane arm section, arm section packaging structure and packaging method |
| CN112830400A (en) * | 2021-02-01 | 2021-05-25 | 浙江三一装备有限公司 | Crawler crane and crane transportation method |
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| CN112830400A (en) * | 2021-02-01 | 2021-05-25 | 浙江三一装备有限公司 | Crawler crane and crane transportation method |
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| Publication number | Publication date |
|---|---|
| CN109553009B (en) | 2020-04-24 |
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