CN104973519B - A kind of derrick crane of pair of lifting arm joint - Google Patents
A kind of derrick crane of pair of lifting arm joint Download PDFInfo
- Publication number
- CN104973519B CN104973519B CN201510316018.7A CN201510316018A CN104973519B CN 104973519 B CN104973519 B CN 104973519B CN 201510316018 A CN201510316018 A CN 201510316018A CN 104973519 B CN104973519 B CN 104973519B
- Authority
- CN
- China
- Prior art keywords
- arm joint
- pulley
- pull bar
- tower
- arm
- 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.)
- Active
Links
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
- 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
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—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
Abstract
The invention provides the derrick crane of a kind of pair of lifting arm joint, the first arm joint being connected including tower body, with tower body and the second arm joint being connected with the first arm joint, fold mechanism is provided between first arm joint and the second arm joint, after first arm joint and the second arm joint are folded, in the presence of fold mechanism, in horizontally adjacent state.Compared with old-fashioned fixed arm tower crane, crane arm is hinged and folded by fold mechanism, reduce shipping height, it is readily transported, and crane arm can in order deploy with the help of dynamical system from folded state to horizontality, the set-up time of tower crane is greatly reduced, cost has been saved for lower building and factory building.
Description
Technical field
The present invention relates to a kind of engineering apparatus, the derrick crane of particularly a kind of pair lifting arm joint.
Background technology
Derrick crane has very big market prospects, but tower crane used in domestic construction field in China's building field
It is mostly fixed arm hanging type tower crane, there are many drawbacks, and the installation and removal of tower crane are also required to expend the significantly time, to 3 to 6
The lower building of layer and the construction of industrial building increase cost, and extend construction period.
The content of the invention
Goal of the invention：The technical problems to be solved by the invention are that there is provided a kind of tower in view of the shortcomings of the prior art
The fold mechanism and expansion mode of the double lifting arm joints of heavy-duty machine.
In order to solve the above-mentioned technical problem, the invention provides the derrick crane of a kind of pair of lifting arm joint, including tower body,
The first arm joint being connected with tower body and the second arm joint being connected with the first arm joint, between first arm joint and the second arm joint
Provided with fold mechanism, after first arm joint and the second arm joint are folded, in the presence of fold mechanism, in horizontally adjacent state.
In the present invention, the fold mechanism include be rotatably connected in the second arm joint the first contiguous block, be rotatably connected on
The second contiguous block in first arm joint and the 3rd contiguous block for being connected to the first contiguous block side, first contiguous block pass through
The rotation that 12nd bearing pin runs through connects the second contiguous block.
In the present invention, first arm joint is provided with first hoist and second hoist, first hoist export first
Rope, the first rope passes sequentially through the 4th pulley, the 7th pulley, the 5th pulley, the 6th pulley, the 8th pulley, the 9th pulley,
Ten pulleys and the 11st pulley, return to first hoist, wherein the 4th pulley is located in the middle part of the first arm joint, the 5th pulley and the 6th
Pulley is located at the first arm joint top boom end, and the 7th pulley is located at the top of the 3rd contiguous block, and the 8th pulley is located at the first connection
The lower end of block, the 9th pulley and the tenth pulley are located at the middle part of the second arm joint, and the 11st pulley is located at the end of the second arm joint.
In the present invention, the second hoist, which is exported, is provided with first pulley, the first arm joint in the middle part of the second rope, the first arm joint
Pull bar diagonal brace is provided with apart from the distal end of tower body, pull bar diagonal brace is provided with second pulley, and the second rope is connected to by first pulley
Second pulley, the second arm joint is provided with the 3rd pulley and the fixed block positioned at the second arm joint distal end positioned at middle part, the second rope
Rope is finally fixed on fixed block after passing through second pulley with the 3rd pulley solderless wrapped connection.
In the present invention, the tower body is provided with balance weight support bar, tower emits pull bar and tower emits hound, wherein balance weight branch
One end of strut and the first arm joint are rotated by the 7th bearing pin to be connected, and tower emits one end of hound and the first arm joint passes through the 6th pin
Axle rotates connection, and the other end that the other end and tower of balance weight support bar emit hound connects the two ends that tower emits pull bar, tower respectively
Emit hound and tower emits pull bar and rotates connection by the 5th bearing pin, balance weight support bar and tower emit pull bar and rotated by the 4th bearing pin
Connection, the middle part of the first arm joint top boom is provided with the first arm joint pull bar, and the first arm joint end connects the one of a pull bar diagonal brace
End, the other end of pull bar diagonal brace is rotated by the 8th bearing pin connects one end of a upper connecting rod while connecting the second arm joint pull bar respectively
Rope, the other end of upper connecting rod and the first arm joint pull bar are connected at the 5th bearing pin, and the second arm joint pull bar rope connects the second arm
One end of pull bar is saved, the other end of the second arm joint pull bar rotates the end of the second arm joint of connection.
In the present invention, the first contiguous block lower end is provided with triangular groove, and the 3rd contiguous block is inclined on the triangular groove summit
Side, causes eccentric throw to be easy to by pulling the first rope 12b to overturn the second arm joint.
In the present invention, second contiguous block is provided with close to the side of the first contiguous block to be used to prevent the second arm joint top boom
The groove extruded during folding.
Beneficial effect：The invention provides the derrick crane of a kind of pair of lifting arm joint, with old-fashioned fixed arm tower crane phase
Than crane arm is hinged and folded by fold mechanism, reduces shipping height, is readily transported, and crane arm
It can in order deploy from folded state to horizontality with the help of dynamical system, the set-up time of tower crane is greatly reduced,
Cost has been saved for lower building and factory building.The present invention is simple in construction, easy to operate, before good market
Scape.
Brief description of the drawings
The present invention is done with reference to the accompanying drawings and detailed description and further illustrated, it is of the invention above-mentioned or
Otherwise advantage will become apparent.
Fig. 1 is that crane arm of the present invention is in the structure chart that level opens up arm state；
Fig. 2 is the partial enlarged drawing in Fig. 1；
Fig. 3 is the structural representation after derrick crane of the present invention is folded；
Fig. 4 is the upward view of partial enlargement in Fig. 3；
Fig. 5 is the view that the second arm joint is turned in the first arm joint；
Fig. 6 is Fig. 5 partial enlarged drawing；
Fig. 7 is Fig. 6 upward view；
Fig. 8 is critical state diagram when second hoist 9b is opened；
Fig. 9 is the state diagram that the first arm joint and the second arm joint lower end are abutted；
Figure 10 is Fig. 9 partial enlarged drawing；
Figure 11 is the state diagram that second hoist 9b controls the second arm joint to decline；
Figure 12 is Figure 11 partial enlarged drawing.
Embodiment
Embodiment
The present invention is elaborated below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the present invention is included in liftable tower body 5, the first arm joint 38, the second arm joint 39, the first arm joint
Chord member 38a, the second arm joint 39a, lifting arm joint component, lifting arm joint foldable assembly, support bar component, rod assembly, connection group
Part and Power Component.The lower end of tower body is fixed with ground, and the other end is flexibly connected with the crane arm；The crane folds group
Part connects tower body and lifting arm joint respectively, the folding for controlling lifting arm joint.The top of tower body 5 is fixedly connected with the first otic placode 1,
It is hinged by the first bearing pin 2 with the second otic placode 3.
Connection component includes bearing pin part, otic placode part and pulley part, and bearing pin part includes the first bearing pin 2, the second bearing pin the 33, the 3rd
Bearing pin 26, pulley part includes first pulley 14a, second pulley 14b, the 3rd pulley 14c, fixed block 14d, first pulley 14a
It is fixedly connected with the top boom of the first arm joint, second pulley 14b is fixed on the top of pull bar diagonal brace 15, the 3rd pulley 14c and solid
Fixed pulley 14d is fixedly connected with the top boom of the second arm joint；Pulley part further comprise the 4th pulley 17a, the 5th pulley 17b,
6th pulley 17c, the 7th pulley 17d, the 8th pulley 17e, the 9th pulley 17f, the tenth pulley 17g and the 11st pulley 17h；The
Four pulley 17a and the first arm joint lower boom support are mutually fixed, in the 5th pulley 17b and the 6th pulley 17c and the first arm joint
Chord member is mutually fixed, and the 7th pulley 17d is fixed on the top of the 3rd contiguous block 31, and the 8th pulley 17e is fixed with the first contiguous block 29
Connection, the 9th pulley 17f and the tenth pulley 17g are fixed in the oblique secondary bar of the second arm joint, the 11st pulley 17h and the second arm joint
Lower secondary bar be fixedly connected.
Such as Fig. 3 and Fig. 4, crane arm foldable assembly include the first contiguous block 29, the second contiguous block 35, the 3rd contiguous block 31 with
And the 5th otic placode 30；First arm joint is fixedly connected with third ear plate 34, and the front of third ear plate 34 and the second contiguous block 35 passes through
Second bearing pin 33 is hinged, and side and the 5th otic placode 30 of the second contiguous block 35 are hinged by the 12nd bearing pin 32, the 5th ear
Plate 30 is fixedly connected with the first contiguous block 29, and the first contiguous block 29 is hinged with the second arm joint by the 3rd bearing pin 26, and the 3rd connects
The lower end for connecing block 31 is fixed on the 5th otic placode 30；When crane arm is in folded state, the first contiguous block 29 is with the 3rd bearing pin
26 be that axle is ridden in the second arm joint, is then that axle is turned to the first arm joint in position opposing upper and lower with the 12nd bearing pin 32
Put, finally being rotated to an angle with the second bearing pin 33 for axle allows the second arm joint to rest in the first arm joint, and the second contiguous block is close
The side of first contiguous block is provided with the groove 40 for being used for being extruded when preventing the second arm joint top boom from folding.
Rod assembly emits pull bar 7, the first arm joint pull bar 10, the second arm joint pull bar 13b, upper connecting rod 11 including tower, and tower emits drawing
Bar 7, the first arm joint pull bar 10 are by hinge, and upper connecting rod 11 is connected by connection component with support bar component.
Support bar component includes balance weight support bar 6, tower and emits hound 8 and pull bar diagonal brace 15, balance weight support bar 6 and tower
Hound 8 is emitted to be rotatably connected in the first arm joint of tower body upper end, pull bar diagonal brace 15 be rotatably connected on the first arm joint apart from tower
The distal end of body.
Second hoist 9b is fixed in first arm joint, and the second rope 12a of the second hoist 9b leads to successively
Cross first pulley 14a, second pulley 14b, the 3rd pulley 14c and be fixedly connected with fixed block 14d, for controlling the second arm joint
Deploy around the 3rd bearing pin 26.
Otic placode part includes the first otic placode 1, the second otic placode 3, third ear plate 34, the 4th otic placode 36 and the 5th otic placode 30, bearing pin
Part can further comprise the 4th bearing pin 20, the 5th bearing pin 21, the 6th bearing pin 22, the 7th bearing pin 23, the 8th bearing pin 24, the 9th bearing pin
25th, the tenth bearing pin 19, the 11st bearing pin 18, the 12nd bearing pin 32, the first otic placode 1 are fixed on the top of tower body 5, and the second otic placode 3 is consolidated
On the lower boom for being scheduled on first arm joint one end, third ear plate 34 is fixedly connected with the top boom of the other end of the first arm joint, and first
Otic placode 1 is hinged with the second otic placode 3 by the first bearing pin 2, and one end of balance weight support bar 6 passes through the 7th pin with the second otic placode 3
Axle 23 is hinged, and one end that the other end emits pull bar 7 by the 4th bearing pin 20 with tower is hinged, and tower emits one end of hound 8 and second
Otic placode 3 is hinged by the 6th bearing pin 22, and the other end emits the other end of pull bar 7, the first arm joint by the 5th bearing pin 21 and tower and drawn
One end of bar 10 and one end of upper connecting rod 11 are hinged, and the other end of the first arm joint pull bar 10 passes through the tenth bearing pin 19 and the first arm
Section is hinged, and the one end of pull bar diagonal brace 15 is hinged by the 9th bearing pin 25 and the 4th otic placode 36, and the other end passes through the 8th bearing pin 24
It is hinged with the other end of upper connecting rod 11 and the one end of the second arm joint pull bar 13, the other end of the second arm joint pull bar 13 passes through the 11st bearing pin
18 are hinged with the second arm joint top boom.
Such as Fig. 5, Fig. 6 and Fig. 7, now the second arm joint is turned to the first arm joint side, the top boom of the first arm joint and second
The top boom of arm joint is relative.
Such as Fig. 8, second hoist 9b unlatchings, the second arm joint of now the second rope 12a pullings.
Such as Fig. 9 and Figure 10, now the first arm joint and the second arm joint lower end abutting, are specifically the hook of the first arm joint end
Slowly it can be hinged with the 3rd bearing pin 26.
Such as Figure 11 and Figure 12, now, the second arm joint declines under the second rope 12a traction around fold mechanism, until
Second arm joint is on same straight line with the first arm joint, and the second arm joint pull bar rope 13a pulls the second arm joint pull bar 13b to open up completely
Open and remain stationary as the second arm joint.
The course of work of the present invention is as follows：
First tower body is got up vertically, liftable tower crane is become into vertical state from horizontality, balancing weight rope 4 is in pine
Relaxation state, support bar component and rod assembly are in folded state, as shown in Figure 3.
Dolly 16 is fixed, starts first hoist 9a, the first rope 12b overlying one ends start to be involved in first hoist
9a, from first hoist 9a to the 4th pulley 17a, the 7th pulley 17d, the 5th pulley 17b and the 6th pulley 17c
One rope 12b starts under tension, and the first arm joint keeps vertical state, the work of the second arm joint and crane arm foldable assembly in pulling force
Rotated clockwise with lower beginning around the second bearing pin 33, until the top boom and the top boom holding phase of the first arm joint 38 of the second arm joint
To inactive state, as shown in Fig. 3 to Fig. 7.
Start the power set for rising tower, after interior tower body 5a rises certain distance, by the balancing weight rope of leading block 37
Rope 4 is slowly tensed by relaxed state, and the second arm joint starts to start clockwise around the 12nd bearing pin 32 in the presence of self gravitation
Rotate, now startup second hoist 9b, the second rope 12a starts to be involved in second hoist 9b, and the second rope 12a stress is drawn
Tightly, the second arm joint slowly stops operating under the second rope 12a pulling force effect, as shown in Figure 8.
As interior tower body 5a continues to rise, as shown in figure 9, under the drive of balance weight rope 4, balance weight support 6, tower emit
Pull bar 7 and tower emit diagonal brace 8 and started to spread out, and the under tension of the first arm joint pull bar 10 is simultaneously emitting pull bar 7 with balancing weight rope 4 and tower
Collective effect under, the first arm joint overcomes self gravitation around the rotate counterclockwise of the first bearing pin 2, and the hook of the first arm joint end can be slow
Slowly it is hinged with the 3rd bearing pin 26.
In the process, as shown in figure 11, the stress of upper connecting rod 11 and pull bar diagonal brace 15 is driven to deploy, while the second arm joint is drawn
Bar rope 13a starts by being relaxed to tension, at this moment starts second hoist 9b and slowly decontrols the second rope 12a of tension, makes the
Two arm joints are slowly rotated clockwise to around the 3rd bearing pin 26 and are horizontal with the first arm joint, and the second arm joint pull bar rope 13a is drawn
Dynamic second arm joint pull bar 13b is fully deployed and remains stationary as the second arm joint, and now the first arm joint and the second arm joint are fully deployed,
As shown in Figure 1.
The folding mode of crane arm joint is the inverse process of expansion mode.
Start the power set of drop tower, interior tower body 5a can slowly decline, and the power suffered by balancing weight rope 4 is slowly reduced, the
One arm joint pull bar 10, upper connecting rod 11, the second arm joint pull bar rope 13a, the second arm joint pull bar 13b can slowly be folded from deployed condition
Get up, the first arm joint makees up time rotation in the presence of deadweight around the first bearing pin 2, while starting second hoist 9b, the second rope
Rope 12a starts to be involved in second hoist 9b, the second arm joint B makees inverse under the second rope 12a pulling force effect around the 3rd bearing pin 26
When rotate, as shown in figure 11.
When the second arm joint goes to position as shown in Figure 9, second hoist 9b is closed, the position of the second arm joint is kept not
Become, decline with the continuation of tower body, the first arm joint continues around the rotation of the up time of the first bearing pin 2, the hook meeting of the end of the first arm joint
It is separated with the 3rd bearing pin 26 of the second arm joint, as shown in Figure 8.
Start second hoist 9b, the second arm joint starts around the 12nd bearing pin 32 under the second rope 12a pulling force effect
Make inverse time rotation, until the second arm joint be in vertical state, as shown in Figure 5.
Dolly 16 is fixed, starts one end below first hoist 9a, the first rope 12b and starts to be involved in first hoist
9a, the first rope 12b stress is tensed, and the second arm joint and crane arm foldable assembly start in the presence of pulling force around the second bearing pin 33
Rotate counterclockwise, until the second arm joint is relied in the first arm joint, as shown in Figure 3.Now lifting arm joint has completed to fold.
The invention provides the derrick crane of a kind of pair of lifting arm joint, the method and approach of the technical scheme are implemented
A lot, described above is only the preferred embodiment of the present invention, it is noted that come for those skilled in the art
Say, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as
Protection scope of the present invention.Each part being not known in the present embodiment can use prior art to be realized.
Claims (1)
1. the derrick crane of a kind of pair of lifting arm joint, including tower body, the first arm joint (38) for being connected with tower body and with first
Connected the second arm joint (39) of arm joint, it is characterised in that provided with folding between first arm joint (38) and the second arm joint (39)
Mechanism, after first arm joint and the second arm joint are folded, in the presence of fold mechanism, in horizontally adjacent state；
The fold mechanism include be rotatably connected in the second arm joint the first contiguous block (29), be rotatably connected on the first arm joint
(38) the second contiguous block (35) on and the 3rd contiguous block (31) for being connected to the first contiguous block (29) side, described first connects
Connect rotation the second contiguous block of connection (35) that block (29) is run through by the 12nd bearing pin (32)；
First contiguous block (29) lower end is provided with triangular groove, and the side of the 3rd contiguous block (31) is inclined on the triangular groove summit；
First arm joint (38) is provided with first hoist (9a) and second hoist (9b), and first hoist (9a) exports the
One rope (12b), the first rope (12b) passes sequentially through the 4th pulley (17a), the 7th pulley (17d), the 5th pulley (17b),
Six pulleys (17c), the 8th pulley (17e), the 9th pulley (17f), the tenth pulley (17g) and the 11st pulley (17h) return to
One hoist engine (9a), wherein the 4th pulley (17a) is located in the middle part of the first arm joint, the 5th pulley (17b) and the 6th pulley (17c) are set
In first arm joint top boom (38a) end, the 7th pulley (17d) is located at the top of the 3rd contiguous block (31), the 8th pulley (17e)
The lower end of the first contiguous block (29) is located at, the 9th pulley (17f) and the tenth pulley (17g) are located at the middle part of the second arm joint, the tenth
One pulley (17h) is located at the end of the second arm joint；
The second hoist (9b), which exports, is provided with first pulley (14a), the first arm in the middle part of the second rope (12a), the first arm joint
Pitch is provided with pull bar diagonal brace (15) from the distal end of tower body, and pull bar diagonal brace (15) is provided with second pulley (14b), the second rope
(12a) is connected to second pulley (14b) by first pulley (14a), and the second arm joint is provided with the 3rd pulley positioned at middle part
(14c) and the fixed block (14d) positioned at the second arm joint distal end, the second rope (12a) is through second pulley (14b) afterwards with the 3rd
Pulley (14c) solderless wrapped connection is finally fixed on fixed block (14d)；
The tower body is provided with balance weight support bar (6), tower emits pull bar (7) and tower emits hound (8), wherein balance weight support bar
(6) one end and the first arm joint is rotated by the 7th bearing pin (23) to be connected, and tower emits one end of hound (8) and the first arm joint passes through
6th bearing pin (22) rotates connection, and the other end that the other end and tower of balance weight support bar (6) emit hound (8) connects tower respectively
The two ends of pull bar (7) are emitted, tower emits hound (8) and tower emits pull bar (7) and rotates connection, balance weight support by the 5th bearing pin (21)
Bar (6) and tower emit pull bar (7) and rotate connection by the 4th bearing pin (20), and the middle part of the first arm joint top boom (38a) is provided with
First arm joint pull bar (10), the first arm joint end connects one end of a pull bar diagonal brace (15), and the other end of pull bar diagonal brace (15) leads to
Cross the 8th bearing pin (24) and rotate one end of one upper connecting rod of connection (11) while connecting the second arm joint pull bar rope (13a) respectively, on
The other end of pull bar (11) and the first arm joint pull bar (10) are connected at the 5th bearing pin (21) place, the second arm joint pull bar rope (13a)
One end of the second arm joint pull bar (13b) is connected, the other end of the second arm joint pull bar (13b) rotates the end of the second arm joint of connection (39)
End；
Second contiguous block (35) is provided with close to the side of the first contiguous block (29) to be used to prevent the second arm joint top boom from folding
When the groove (40) that extrudes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316018.7A CN104973519B (en) | 2015-06-10 | 2015-06-10 | A kind of derrick crane of pair of lifting arm joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316018.7A CN104973519B (en) | 2015-06-10 | 2015-06-10 | A kind of derrick crane of pair of lifting arm joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104973519A CN104973519A (en) | 2015-10-14 |
| CN104973519B true CN104973519B (en) | 2017-10-03 |
Family
ID=54270566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510316018.7A Active CN104973519B (en) | 2015-06-10 | 2015-06-10 | A kind of derrick crane of pair of lifting arm joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104973519B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3046149B1 (en) * | 2015-12-23 | 2017-12-29 | Manitowoc Crane Group France | AUTOMATICALLY FOLDING AND FOLDING CRANE COMPRISING A MAT AND ARROW DECALED FROM MATERIAL |
| CN110697435B (en) * | 2019-10-16 | 2021-02-26 | 长沙理工大学 | Working method of folding arm conveyor |
| CN113526366B (en) * | 2021-06-11 | 2023-10-03 | 浙江省建设工程机械集团有限公司 | Multifunctional flat arm tower crane for fire fighting |
| CN113753773B (en) * | 2021-09-09 | 2022-03-01 | 大洋泊车股份有限公司 | Multistage hydraulic multiplication pulley vertical lifting type climbing platform fire truck |
| CN114436133B (en) * | 2022-02-18 | 2024-02-27 | 广州珠江建设发展有限公司 | High-altitude tower crane arm rod self-disassembly auxiliary device and construction method thereof |
| CN116443745B (en) * | 2023-06-16 | 2023-10-20 | 杭州未名信科科技有限公司 | Tower crane system and control method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103039146A (en) * | 2011-10-13 | 2013-04-17 | 迪尔公司 | Boom fold structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2351953C2 (en) * | 1973-10-16 | 1983-10-20 | Peiner Hebe- Und Transportsysteme Gmbh, 5500 Trier | Tower crane with collapsible boom |
| DE3311588A1 (en) * | 1983-03-30 | 1984-10-11 | Peiner Hebe- Und Transportsysteme Gmbh, 5500 Trier | Tower crane with split jib |
| CN101962156B (en) * | 2010-10-18 | 2012-04-04 | 南京工业大学 | Foldable fast-loading tower crane |
| CN102358580B (en) * | 2011-08-12 | 2013-03-27 | 中联重科股份有限公司 | Folding jib structure and method for unfolding and folding the same |
| CN202214170U (en) * | 2011-09-14 | 2012-05-09 | 哈尔滨东建机械制造有限公司 | Extending-retracting and folding mechanism for horizontal single-rope double-lifting-point boom |
-
2015
- 2015-06-10 CN CN201510316018.7A patent/CN104973519B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103039146A (en) * | 2011-10-13 | 2013-04-17 | 迪尔公司 | Boom fold structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104973519A (en) | 2015-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104973519B (en) | A kind of derrick crane of pair of lifting arm joint | |
| CN101962156B (en) | Foldable fast-loading tower crane | |
| CN105529648B (en) | Hydraulic pressure assembled crossing frame | |
| CN106115500B (en) | A kind of high-rise building is special, and tearing formula roofing open hangs and tears open certainly method certainly | |
| CN110104522B (en) | Traction type construction lifter for folding roof beam and construction method thereof | |
| CN106219419B (en) | The large-scale swing arm tower crane original position of high-rise building is converted to plug-in construction method by interior climb | |
| CN104499417B (en) | Emergent the robbing of a kind of gravity self-balancing formula is led to fast from building bridge | |
| CN106395645A (en) | Wind power arm overturning method and crane | |
| CN103663189B (en) | Moving arm tower crane installation method | |
| CN202415019U (en) | Rapidly erected tire type crane | |
| CN105256728B (en) | A kind of cantilever erection method of the Chinese human relations formula steel truss girder of cable-stayed bridge | |
| CN210048319U (en) | Traction type construction elevator with foldable top beam | |
| CN103422662B (en) | The integral movable type operation platform cast-in-place for elevator shaft and using method thereof | |
| CN205973523U (en) | Super high -rise building is special to be hung from tearing formula roofing open | |
| CN103753207B (en) | For the turning device of wind driven generator principal shaft | |
| CN111039130A (en) | Bearing beam self-elevating hoistway construction elevator | |
| CN111115412A (en) | Collapsible arch bridge formula bearing beam subassembly and spandrel girder for well construction elevator | |
| CN205892576U (en) | Fast set up tower crane's jib loading boom turns over a device | |
| CN205892577U (en) | Fast set up tower crane's supplementary jib loading boom with water tank counterweight | |
| CN107265306A (en) | A kind of indoor small-sized tower crane | |
| CN110040638A (en) | A kind of deck unit erection gantry device and installation method for installing suspension bridge stiff beam | |
| CN201113297Y (en) | Multifunctional electric power construction vehicle | |
| CN216426575U (en) | Novel ready-package stage | |
| CN206298279U (en) | Anti-extrusion rope guider | |
| CN105883645B (en) | The method for dismounting of tower crane attachment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |