CN107082378A - Lifting principal arm device, boom system and crane - Google Patents
Lifting principal arm device, boom system and crane Download PDFInfo
- Publication number
- CN107082378A CN107082378A CN201710455940.3A CN201710455940A CN107082378A CN 107082378 A CN107082378 A CN 107082378A CN 201710455940 A CN201710455940 A CN 201710455940A CN 107082378 A CN107082378 A CN 107082378A
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- China
- Prior art keywords
- arm
- lifting
- telescopic
- principal arm
- supporting structure
- 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
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
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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
-
- 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
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
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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
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The present invention relates to technical field of crane equipment, more particularly to a kind of lifting principal arm device, boom system and crane.The present invention is provided for the link being connected with super lifting device on lifting principal arm, and be set to its supporting structure by link and pull structure to be located remotely from each other or close to each other with the relative telescopic of two section telescopic arms of lifting principal arm, the link is allowd to reduce flexural deformation of the lifting principal arm in operation process with super lifting device cooperation on the premise of not influenceing telescopic arm normally to stretch, therefore, the present invention can be effectively improved the stress of lifting principal arm, lift the lifting performance of lifting principal arm, so that lifting principal arm can be designed as with longer length.
Description
Technical field
The present invention relates to technical field of crane equipment, more particularly to a kind of lifting principal arm device, boom system and crane.
Background technology
In order to meet requirements at the higher level of the Larger Engineering Projects such as the wind-powered electricity generation continued to develop and petrochemical industry to crane hanging component performance,
The arm support length of crane increasingly increases, and generally sets super lifting device, to reduce bending of the longer arm frame during lift heavy
Deformation.
Fig. 1 shows a kind of crane of the prior art.As shown in Figure 1, the boom system of the crane includes lifting
Principal arm 1 ' and super lifting device 2 ', super lifting device 2 ' are arranged on the basic arm of lifting principal arm 1 ', and the top of super lifting device 2 ' leads to
Setting-up steel wire rope 3 ' is crossed to be connected directly between on the arm head of minor details telescopic arm of lifting principal arm 1 '.This boom system, its setting-up dress
Although the flexural deformation of lifting principal arm 1 ' can be reduced to a certain extent by putting 2 ', because super lifting device 2 ' directly passes through setting-up
Steel wire rope 3 ' is connected with the minor details telescopic arm of lifting principal arm 1 ', and centre lacks support, therefore, and lifting principal arm 1 ' is still easier to occur
Flexural deformation, causes the length of lifting principal arm 1 ' still by larger limitation.
Fig. 2 shows another crane of the prior art.As shown in Figure 2, the boom system of the crane includes
Weight principal arm 1 ', super lifting device 2 ', lifting auxiliary 5 ' and link 4 ', wherein, super lifting device different from the set-up mode in Fig. 1
1 ' top is no longer directly connected on the minor details telescopic arm of lifting principal arm 1 ', but by setting-up steel wire rope 3 ' and has been arranged on
Link 4 ' on weight auxiliary 5 ' is connected.This boom system, although add link 4 ' and be supported, but link 4 ' is set
Put on lifting auxiliary 5 ', and be not disposed on lifting principal arm 1 ', being still easier to of lifting principal arm 1 ' occurs bending and deformation, lifting
The length of principal arm 1 ' is still by larger limitation, and the increase of crane arm support total length depends on the length increasing of lifting auxiliary 5 '
Plus；It is additionally, since link 4 ' to be arranged on non-telescoping lifting auxiliary 5 ', in order to meet length during transition transport to vehicle
Degree requires that connector 4 ' needs individually to transport after removing from lifting principal arm 1 ' together in company with lifting auxiliary 5 ', influences crane
Transition efficiency and operating efficiency.
The content of the invention
A technical problem to be solved by this invention is：The stress of lifting principal arm is poor in the prior art, lifting
The length of principal arm is by larger limitation.
In order to solve the above-mentioned technical problem, the invention provides a kind of lifting principal arm device, it includes lifting principal arm, lifting
Principal arm includes basic arm and some section telescopic arms that is connected on basic arm and can stretch, moreover, the lifting principal arm device is also
Include the link of the super lifting device for connecting lifting principal arm and boom system, link includes supporting structure and at least one
Structure is pulled, the first end of supporting structure is connected with pulling the first end of structure, and the second end of supporting structure is connected to some sections
On the arm head of a section telescopic arm in telescopic arm, another section that the second end of drawing structure is connected in some section telescopic arms stretches
On the arm head of arm, the second end of supporting structure with pull structure the second end can with the telescopic arm being connected with supporting structure and
It is located remotely from each other or close to each other with pulling the relative telescopic for the telescopic arm that structure is connected.
Alternatively, the telescopic arm being connected with supporting structure and the telescopic arm being connected with pulling structure are two sections adjacent to each other
Telescopic arm, or, it is spaced an at least section between the telescopic arm being connected with supporting structure and the telescopic arm being connected with drawing structure and stretches
Contracting arm.
Alternatively, drawing structure include drawing piece, drawing piece can the telescopic arm being connected with supporting structure and with drawing
Shunk and/or folded during the telescopic arm relative constriction of structure connection.
Alternatively, drawing piece is arm-tie, and arm-tie can be connected in the telescopic arm being connected with supporting structure and with drawing structure
Telescopic arm relative constriction when shunk and/or folded；Or, drawing piece is drawstring, and drawstring can connect with supporting structure
Folded when the telescopic arm connect and the telescopic arm relative constriction being connected with drawing structure.
Alternatively, drawing structure includes two drawing pieces, and the first end of supporting structure is provided with two drawing connecting portions, two
The first end of drawing piece is connected correspondingly with two drawing connecting portions.
Alternatively, link includes two drawing structures, and the second end of two drawing structures is connected to some sections and stretched
Two in contracting arm save on different telescopic arms.
Alternatively, the first end of supporting structure is provided with two setting-up connecting portions, and two setting-up connecting portions are respectively used to connection
One setting-up steel wire rope for being connected with super lifting device.
Alternatively, supporting structure is in frame-type structure.
Another aspect of the present invention additionally provides a kind of boom system, and it includes super lifting device and the lifting principal arm dress of the present invention
Put.
Another aspect of the invention additionally provides a kind of crane, and it includes the boom system of the present invention.
The present invention is provided for the link being connected with super lifting device on lifting principal arm, and link is set into its branch
Frame structure and drawing structure can save the relative telescopic of telescopic arm with the two of lifting principal arm and be located remotely from each other or close to each other, make
Lifting principal arm can be reduced in work on the premise of not influenceing telescopic arm normally to stretch with super lifting device cooperation by obtaining the link
Flexural deformation during industry, therefore, the present invention can be effectively improved the stress of lifting principal arm, of lifting lifting principal arm
Principal characteristic energy so that lifting principal arm can be designed as with longer length.
Be described in detail by the exemplary embodiment referring to the drawings to the present invention, further feature of the invention and
Its advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 shows a kind of super lifting device connected mode schematic diagram of crane in the prior art.
Fig. 2 shows the super lifting device connected mode schematic diagram of another crane in the prior art.
Fig. 3 shows the connected mode schematic diagram of the super lifting device of first embodiment of the invention crane.
Fig. 4 shows the off working state schematic diagram of lifting principal arm device and super lifting device in first embodiment shown in Fig. 3.
When Fig. 5 shows that two section telescopic arms being connected in first embodiment shown in Fig. 3 with link are in relative extension state
The expanded schematic diagram of link.
When Fig. 6 shows that two section telescopic arms being connected in first embodiment shown in Fig. 3 with link are in relative constriction state
The gathering schematic diagram of link.
Fig. 7 shows the structural representation of link in first embodiment shown in Fig. 3.
Fig. 8 shows the connected mode schematic diagram of the super lifting device of second embodiment of the invention crane.
Fig. 9 shows the connected mode schematic diagram of the super lifting device of third embodiment of the invention crane.
In figure：
1 ', lifting principal arm；2 ', super lifting device；3 ', setting-up steel wire rope；4 ', link；5 ', lifting auxiliary；
1st, lifting principal arm；2nd, link；3rd, super lifting device；4th, setting-up steel wire rope；
11st, basic arm；12nd, telescopic arm；
21st, supporting structure；22nd, structure is pulled；221st, arm-tie.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any limitation.Based on the embodiment in the present invention, those of ordinary skill in the art are in no development creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing a part for specification.
In the description of the invention, it is to be understood that limit parts using the word such as " first ", " second ", only
It is for only for ease of and corresponding parts is distinguished, such as without Stated otherwise, above-mentioned word does not have particular meaning, therefore not
It is understood that as limiting the scope of the invention.
Fig. 3-9 shows three embodiments of the present invention.Lifting principal arm device provided by the present invention, including lifting principal arm
1, lifting principal arm 1 includes basic arm 11 and some section telescopic arms 12 that is connected on basic arm 11 and can stretch, also, this
Weight principal arm device also includes the link 2 for being used to connect lifting principal arm 1 and the super lifting device 3 of boom system, and link 2 includes branch
Frame structure 21 and at least one drawing structure 22, the first end of supporting structure 21 are connected with pulling the first end of structure 22, support
Second end of structure 21 is connected on the arm head of the section telescopic arm 12 in some section telescopic arms 12, pulls the second end of structure 22
On the arm head for another section telescopic arm 12 being connected in some section telescopic arms 12, the second end and the drawing structure 22 of supporting structure 21
The second end can be relative with the telescopic arm 12 being connected with supporting structure 21 and with the telescopic arm 12 that be connected of drawing structure 22
Stretch and be located remotely from each other or close to each other.
The present invention is provided for the link 2 being connected with super lifting device 3 on lifting principal arm 1, and link 2 is set to
Its supporting structure 21 and drawing structure 22 can with lifting principal arm two save telescopic arms 12 relative telescopic and be located remotely from each other or
It is close to each other so that the link 2 can coordinate effectively on the premise of not influenceing telescopic arm 12 normally to stretch with super lifting device 3
Improve the stress of lifting principal arm, reduce flexural deformation of the lifting principal arm 1 in operation process, improve the strong of lifting principal arm 1
Degree and rigidity, not only can effectively lift the lifting performance of lifting principal arm 1, can also effectively solve the length of lifting principal arm 1 long
When stress is poor, in terms of easy overall collapse the problem of, provide and provide powerful support for for the increase length of arm support 1.
Moreover, the set-up mode based on lifting principal arm device of the present invention, link 2 can be with rising in transition transportation
Weight principal arm 1 is transported together, and without dismounting, again without reinstalling during operation, therefore, the present invention also advantageously improves lifting
The operating efficiency and transition efficiency of machine.
It can be appreciated that " arm head of telescopic arm 12 " described in the present invention refers to the remote basic arm 11 of telescopic arm 12
One end.
Because the lifting principal arm device of the present invention can be effectively improved the stress of lifting principal arm 1, help to increase
The length of weight principal arm 1, and link 2 in transition without dismounting, therefore, by the present invention lifting principal arm device be applied to lifting
Machine, can be with the lifting performance of lift crane so that crane can realize more stablize, safety and efficient transition process and
Operation process.So, present invention also offers a kind of boom system and a kind of crane, wherein, boom system is filled including setting-up
Put the lifting principal arm device of 3 and the present invention；And crane then includes the boom system of the present invention.
The present invention is further said with reference to three embodiments of the crane of the present invention shown in Fig. 3-9
It is bright.The structure that the difference of these three embodiments essentially consists in lifting principal arm device is different, that is, these three implementations are illustrated this
Three embodiments of invention lifting principal arm device.
Fig. 3-7 shows one embodiment of crane of the present invention.As shown in figure 3, in this first embodiment, lifting
Machine includes boom system, and boom system includes lifting principal arm device, super lifting device 3 and setting-up steel wire rope 4, wherein, lifting principal arm
Device includes lifting principal arm 1 and link 2, and lifting principal arm 1 includes basic arm 11 and some section telescopic arms 12, and link 2 is then wrapped
Include supporting structure 21 and a drawing structure 22.
Link 2 is arranged on lifting principal arm 1, and is connected by setting-up steel wire rope 4 with super lifting device 3.Specifically, as schemed
Shown in 3 and Fig. 5, the first end of supporting structure 21 is rotatably coupled with pulling the first end of structure 22 by bearing pin, support knot
Second end of structure 21 and the second end of drawing structure 22 are rotatably connected at the arm head of two section telescopic arms 12 by bearing pin respectively
On, the setting-up steel wire rope 4 being connected with super lifting device 3 is connected to the first end of supporting structure 21.Wherein, stretching along telescopic arm 12
Outgoing direction, the telescopic arm 12 being connected with the second end of supporting structure 21 is located at pulling the telescopic arm that the second end of structure 22 is connected
12 upstream, i.e. the telescopic arm 12 that supporting structure 21 is connected relative to the telescopic arm 12 that is connected of drawing structure 22 closer to
Basic arm 11.Based on this, the second end of the second end of supporting structure 21 and drawing structure 22 can be connected with the two two
Save the relative telescopic of telescopic arm 12 and be located remotely from each other automatically with it is close to each other, and in the setting-up steel wire rope 4 being connected with super lifting device 3
In the presence of, link 2 can automatically be propped or crouched down automatically on lifting principal arm 1.
Wherein, as shown in Figure 3 and Figure 5, when the two section telescopic arms 12 that super lifting device 3 is worked and link 2 is connected are relative
During stretching, link 2 under the draw of setting-up steel wire rope 4 by from pull-up on lifting principal arm 1, and the second of supporting structure 21
End and the second end of drawing structure 22 are located remotely from each other automatically, and link 2 is in deployed condition, is cooperatively formed with super lifting device 3 super
Statically determinate structure, the effect of super lifting device 3 is delivered on lifting principal arm 1, overcomes lift heavy active force, can effectively reduce lifting master
The flexural deformation occurred during the lifting weight of arm 1, realizes the improvement to the stress of lifting principal arm 1.
As shown in fig. 6, when two section 12 relative constriction of telescopic arm that super lifting device 3 is worked and link 2 is connected, connection
Frame 2 still under the draw of setting-up steel wire rope 3 by from pull-up on lifting principal arm 1, and the second end of supporting structure 21 and drawing
Second end of structure 22 is automatically close to each other, and link 2 is in rounding state, now, although drawing structure 22 is not by setting-up steel
The traction force of cord 4, but supporting structure 21, still by the traction action of setting-up steel wire rope 4, connection 2 remains to coordinate with super lifting device 3
Redundant structure is formed, plays a part of improving the stress of lifting principal arm 1.
And as shown in figure 4, when needing transition to transport, super lifting device 3 does not work, and each section telescopic arm of lifting principal arm 1
12 are withdrawn, and link 2 is drawn in automatically with the relative telescopic of its two section telescopic arm 12 connected, and with super lifting device
3 and setting-up steel wire rope 4 pack up and crouch down automatically on lifting principal arm 1 so that link 2 will not increase the length of lifting principal arm 1
Degree, can together be transported with lifting principal arm 1.
It can be seen that, the set-up mode based on the embodiment, link 2 can be in the premise for not influenceing telescopic arm 12 normally to stretch
Lower and super lifting device 3 coordinates the stress for being effectively improved lifting principal arm, it is possible to lifting master in transition transportation
Arm 1 is transported together, therefore, and the length of lifting principal arm 1 can be with longer, and the operating efficiency and transition efficiency of crane can be higher.
Link 2 Automatic-expanding and automatic gathering in its telescopic process of telescopic arm connected 12 for convenience, at this
In embodiment, the drawing structure 22 of link 2 can include drawing piece, and drawing piece be configured to supporting structure 21
Shunk and/or folded when the telescopic arm 12 of connection and 12 relative constriction of telescopic arm being connected with drawing structure 22.So, exist
During two section 12 relative telescopic of telescopic arm that link 2 is connected, the second end for pulling structure 22 can be therewith away from or close to branch
Second end of frame structure 21 so that link 2 can be drawn in Automatic-expanding with automatic in this process, easy to use and efficient.
Wherein, drawing piece can be arm-tie or drawstring.When drawing piece is drawstring (such as steel wire rope), connected in drawstring
Telescopic arm 12 is carried out during stretching relative to the telescopic arm 12 that supporting structure 21 is connected, and drawstring can be under gravity
Automatically unfold or fold, so as to conveniently realize the Automatic-expanding of link 2 and automatic gathering.And when drawing piece is arm-tie
When, arm-tie both could be arranged to folding (such as arm-tie can include two sections being hinged or more piece plate body), can also set
Telescopic (such as arm-tie can include two sections being mutually slidably connected or more piece plate body) is set to, both flexibles are may be arranged as
It can fold again, so that the telescopic arm 12 that arm-tie can be connected at it enters relative to the telescopic arm 12 that supporting structure 21 is connected
Row shrinks and/or folded during shrinking, and realizes the Automatic-expanding of link 2 and automatic gathering.
Specifically, as shown in fig. 7, the traction piece of the embodiment is arm-tie 221, and arm-tie 221 is telescopic.It is based on
This, when the telescopic arm 12 that arm-tie 221 is connected stretches out relative to the telescopic arm 12 that supporting structure 21 is connected, arm-tie 221 can
Accordingly to extend so that the second end of remote supporting structure 21 is capable of at the second end of arm-tie 221, realizes the automatic exhibition of link 2
Open；And when the telescopic arm 12 that arm-tie 221 is connected is retracted relative to the telescopic arm 12 that supporting structure 21 is connected, arm-tie 221
Can accordingly it shorten so that the second end of arm-tie 221 can realize the automatic of link 2 close to the second end of supporting structure 21
Draw in.
Moreover, from Fig. 5 and Fig. 7, in this embodiment, drawing structure 22 includes two arm-ties 221, two arm-ties
221 first end is connected on supporting structure 21, specifically, and the first end of supporting structure 21 is provided with two drawing connections
Portion, the first end of two arm-ties 221 is connected correspondingly with two drawing connecting portions；Second end of two arm-ties 221 is then divided
Two diverse locations of the arm head of same telescopic arm 12 are not connected to.Relative to the situation for only setting an arm-tie 221, the implementation
Example sets two arm-ties 221, and structure is more stablized, and can more effectively reduce the amount of deflection of lifting principal arm 1 during lift heavy.
In addition, as illustrated in figs. 5-7, in this embodiment, the first end of supporting structure 21 is provided with two setting-up connecting portions, two
Individual setting-up connecting portion is respectively used to the setting-up steel wire rope 4 that connection one is connected with super lifting device 3.So with the company of super lifting device 3
The two setting-up steel wire ropes 4 connect are connected to the diverse location of the first end of supporting structure 21, are easy to super lifting device 3 in operation process
The various attitudes vibrations such as swing are carried out freely.As shown in Figure 7, the direct organization 21 of the embodiment is in frame-type structure, this
The arrangement of two setting-up connecting portions is not only convenient for, and it is simple in construction, and stability is good, can more effectively improve lifting principal arm 1
Stress.
From Fig. 3, Fig. 5 and Fig. 6, in the above-described first embodiment, the second end of supporting structure 21 and drawing structure 22
The second end be connected on two sections telescopic arms 12 adjacent to each other.It is to be understood that, the two two section telescopic arm 12 connected
Relative position relation is not limited thereto, and on the two two section telescopic arms 12 adjacent except that can be connected to, can also be connected to
On non-conterminous two sections telescopic arm 12, i.e. the telescopic arm 12 that be connected with supporting structure 21 and with stretching that drawing structure 22 is connected
At least one section telescopic arm 12 can also be spaced between arm 12.This point illustrates the second embodiment with reference to shown in Fig. 8.
As shown in figure 8, in this second embodiment, the second end of supporting structure 21 and the second end of drawing structure 22 are no longer
It is connected on two adjacent section telescopic arms 12, but is connected on two section telescopic arms 12 of the section telescopic arm 12 of midfeather one, i.e.
Telescopic arm 12 is saved at interval one between the telescopic arm 12 being connected with supporting structure 21 and the telescopic arm 12 being connected with drawing structure 22.By
In based on this, link 2 can coordinate to apply the lifting principal arm 1 in the range of larger lengths with super lifting device 3 and be used to overcome to hang
The active force of heavy power, therefore, it can more effectively reduce the amount of deflection of lifting principal arm 1, be more beneficial for increasing the length of lifting principal arm 1
Degree.Certainly, in other embodiments of the invention, the telescopic arm 12 that is connected with supporting structure 21 and it is connected with drawing structure 22
At least two section telescopic arms 12 can also be spaced between telescopic arm 12.
In above-mentioned first embodiment and second embodiment, link 2 only includes a drawing structure 22, but actual
On, link 2 of the invention can also include more than two drawing structures 22.This point is real by the 3rd with reference to shown in Fig. 9
Example is applied to illustrate.
As shown in figure 9, in the 3rd embodiment, link 2 includes two drawing structures 22, the two drawing structures 22
It is connected on the different telescopic arm 12 of two sections so that the two drawing structures 22 are connected to three sections with supporting structure 21
On different telescopic arms 22.Due to relative first embodiment and second embodiment, the link 2 in the 3rd embodiment can be with
Coordinate the active force applied to the lifting principal arm 1 in the range of larger lengths for overcoming lift heavy gravity with super lifting device 3, therefore,
The 3rd embodiment can further reduce the amount of deflection of lifting principal arm 1, be conducive to further increasing the length of lifting principal arm 1.
In addition, in above three embodiment, boom system merely illustrates lifting principal arm device, super lifting device 3 and surpassed
Play steel wire rope 4, and not shown lifting auxiliary, but it is to be understood that when needing on the basis of lifting principal arm 1 further increase arm support
During total length, lifting auxiliary can also be further connected at the minor details telescopic arm of lifting principal arm 1 of the present invention.
The exemplary embodiment of the present invention is the foregoing is only, is not intended to limit the invention, all spirit in the present invention
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of lifting principal arm device, including lifting principal arm (1), the lifting principal arm (1) include basic arm (11) and are connected to
On the basic arm (11) and some section telescopic arms (12) that can stretch, it is characterised in that the lifting principal arm device is also wrapped
Include for connecting the lifting principal arm (1) and the link (2) of the super lifting device (3) of boom system, the link (2) includes
Supporting structure (21) and at least one drawing structure (22), the first end of the supporting structure (21) and the drawing structure (22)
First end connection, the second end of the supporting structure (21) is connected to the section telescopic arm in some section telescopic arms (12)
(12) on arm head, another section that the second end of the drawing structure (22) is connected in some section telescopic arms (12) stretches
On the arm head of arm (12), the second end of the supporting structure (21) with it is described drawing structure (22) the second end can with institute
State the telescopic arm (12) of supporting structure (21) connection and the relative telescopic for the telescopic arm (12) being connected with the drawing structure (22)
And be located remotely from each other or close to each other.
2. lifting principal arm device according to claim 1, it is characterised in that what is be connected with the supporting structure (21) is flexible
Arm (12) and for adjacent to each other two telescopic arms (12) are saved with drawing structure (22) telescopic arm (12) that be connected, or, with
It is spaced between the telescopic arm (12) of supporting structure (21) connection and the telescopic arm (12) being connected with the drawing structure (22)
At least one section telescopic arm (12).
3. lifting principal arm device according to claim 1, it is characterised in that the drawing structure (22) includes drawing piece,
The drawing piece can pull what structure (22) was connected in the telescopic arm (12) being connected with the supporting structure (21) and with described
Shunk and/or folded during telescopic arm (12) relative constriction.
4. lifting principal arm device according to claim 3, it is characterised in that the drawing piece is arm-tie (221), described to draw
Plate (221) can the telescopic arm (12) being connected with the supporting structure (21) and with it is described drawing structure (22) be connected stretch
Shunk and/or folded during arm (12) relative constriction；Or, the drawing piece be drawstring, the drawstring can with it is described
Enter when the telescopic arm (12) of supporting structure (21) connection and telescopic arm (12) relative constriction being connected with the drawing structure (22)
Row is folded.
5. lifting principal arm device according to claim 3, it is characterised in that the drawing structure (22) is included described in two
Drawing piece, the first end of the supporting structure (21) is provided with two drawing connecting portions, the first end of described two drawing pieces and institute
Two drawing connecting portions are stated to connect correspondingly.
6. according to any described lifting principal arm devices of claim 1-5, it is characterised in that the link (2) includes two
The drawing structure (22), the second end of described two drawing structures (22) is connected in some section telescopic arms (12)
The two different telescopic arms (12) of section on.
7. lifting principal arm device according to claim 1, it is characterised in that the first end of the supporting structure (21) is provided with
Two setting-up connecting portions, described two setting-up connecting portions are respectively used to the setting-up that connection one is connected with the super lifting device (3)
Steel wire rope (4).
8. lifting principal arm device according to claim 7, it is characterised in that the supporting structure (21) is in frame-type structure.
9. a kind of boom system, including super lifting device (3), it is characterised in that the boom system also includes such as claim 1-8
Any described lifting principal arm device.
10. a kind of crane, it is characterised in that including boom system as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710455940.3A CN107082378B (en) | 2017-06-16 | 2017-06-16 | Lifting principal arm device, boom system and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710455940.3A CN107082378B (en) | 2017-06-16 | 2017-06-16 | Lifting principal arm device, boom system and crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107082378A true CN107082378A (en) | 2017-08-22 |
| CN107082378B CN107082378B (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710455940.3A Active CN107082378B (en) | 2017-06-16 | 2017-06-16 | Lifting principal arm device, boom system and crane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019111642A1 (en) * | 2017-12-06 | 2019-06-13 | コベルコ建機株式会社 | Intermediate support holder for construction machinery |
| CN111704049A (en) * | 2020-06-30 | 2020-09-25 | 三一汽车起重机械有限公司 | Crane boom and crane |
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| CN201301180Y (en) * | 2008-10-29 | 2009-09-02 | 徐州重型机械有限公司 | Super-lifting gear for telescopic booms and telescopic boom crane |
| CN101857176A (en) * | 2010-07-05 | 2010-10-13 | 三一汽车起重机械有限公司 | Super hoisting device and telescopic-boom hoisting equipment with same |
| JP2012041149A (en) * | 2010-08-20 | 2012-03-01 | Tadano Ltd | Mobile crane |
| CN202671074U (en) * | 2012-06-04 | 2013-01-16 | 徐州重型机械有限公司 | Telescopic boom crane and super-lift device thereof |
| CN104528552A (en) * | 2014-12-31 | 2015-04-22 | 中联重科股份有限公司 | Super-lift device, operation method thereof and crane |
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| CN201301180Y (en) * | 2008-10-29 | 2009-09-02 | 徐州重型机械有限公司 | Super-lifting gear for telescopic booms and telescopic boom crane |
| CN101857176A (en) * | 2010-07-05 | 2010-10-13 | 三一汽车起重机械有限公司 | Super hoisting device and telescopic-boom hoisting equipment with same |
| JP2012041149A (en) * | 2010-08-20 | 2012-03-01 | Tadano Ltd | Mobile crane |
| CN202671074U (en) * | 2012-06-04 | 2013-01-16 | 徐州重型机械有限公司 | Telescopic boom crane and super-lift device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019111642A1 (en) * | 2017-12-06 | 2019-06-13 | コベルコ建機株式会社 | Intermediate support holder for construction machinery |
| US11319196B2 (en) | 2017-12-06 | 2022-05-03 | Kobelco Construction Machinery Co., Ltd. | Intermediate support holder for construction machinery |
| CN111704049A (en) * | 2020-06-30 | 2020-09-25 | 三一汽车起重机械有限公司 | Crane boom and crane |
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| Publication number | Publication date |
|---|---|
| CN107082378B (en) | 2018-04-17 |
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