CN212198263U - Folding cantilever crane and crane - Google Patents
Folding cantilever crane and crane Download PDFInfo
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- CN212198263U CN212198263U CN202020939495.5U CN202020939495U CN212198263U CN 212198263 U CN212198263 U CN 212198263U CN 202020939495 U CN202020939495 U CN 202020939495U CN 212198263 U CN212198263 U CN 212198263U
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Abstract
The utility model provides a folding arm support and a crane, relating to the technical field of engineering machinery, comprising a lower section arm support and a middle arm support; the lower section arm support and the middle arm support are rotatably connected, so that the lower section arm support and the middle arm support can be folded and unfolded; and a detachable structure is arranged at the joint of the lower section arm support and the middle arm support and is used for locking the rotation between the unfolded lower section arm support and the middle arm support. When the foldable arm support is used, the lower section arm support and the middle arm support are unfolded, and the rotation between the lower section arm support and the middle arm support is locked by using a detachable structure; when the foldable cantilever crane needs to be transported, the detachable structure is opened, and the lower section cantilever crane can rotate relative to the middle cantilever crane, so that the foldable cantilever crane can be folded, the cantilever crane does not need to be disassembled in sections, the foldable cantilever crane is convenient to use, the transition efficiency is improved, and the transportation cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the engineering machine tool technique and specifically relates to a folding cantilever crane and hoist are related to.
Background
The crawler crane can perform the operations of material lifting, transportation, loading and unloading, installation and the like. The crawler crane has the advantages of strong hoisting capacity, small ground pressure, small turning radius, large climbing capacity, no need of supporting legs, load running, good operation stability, freely replaceable truss combination height and the like, and is widely applied to construction industries such as electric power, municipal administration, bridges, petrochemical industry, water conservancy and hydropower.
When the existing crawler crane is transported in a transition mode, the arm support on the crawler crane needs to be disassembled in sections and transported with the main machine respectively. The dismouting is wasted time and energy, and the transition is efficient, and the cost of transportation is high, has also produced very big influence to construction cycle.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a folding cantilever crane and hoist to when having alleviated crawler crane and having changeed the transportation, all need to demolish the cantilever crane segmentation above that, the dismouting is wasted time and energy, and it is efficient to change, technical problem that the cost of transportation is high.
The utility model provides a folding arm frame, which comprises a lower section arm frame and a middle arm frame;
the lower section arm support and the middle arm support are rotatably connected, so that the lower section arm support and the middle arm support can be folded and unfolded;
and a detachable structure is arranged at the joint of the lower section arm support and the middle arm support and is used for locking the rotation between the unfolded lower section arm support and the middle arm support.
Further, the folding arm support comprises a connecting arm support arranged between the lower section arm support and the middle arm support;
the lower arm support is rotatably connected with the connecting arm support, a first detachable structure is arranged at the joint of the lower arm support and the connecting arm support, and the first detachable structure is used for locking the rotation between the lower arm support and the connecting arm support;
the middle arm support is rotatably connected with the connecting arm support, a second detachable structure is arranged at the joint of the middle arm support and the connecting arm support, and the second detachable structure is used for locking the rotation between the middle arm support and the connecting arm support.
Further, the folding arm support comprises an upper arm support body and an upper arm head;
one end of the upper arm support body is connected with one end, far away from the connecting arm support, of the middle arm support, the upper arm gooseneck boom head is rotatably connected with the upper arm support body, the upper arm gooseneck boom head is connected with the upper arm support body through a third detachable structure, and the third detachable structure is used for locking rotation between the upper arm gooseneck head and the upper arm support body.
Furthermore, the connecting arm support is of a trapezoidal structure; the connecting arm support comprises a first side surface and a second side surface which are parallel to each other;
one end of the first side surface is rotatably connected with one side of the lower-section arm frame;
the other end of the first side surface is rotatably connected with one side of the middle arm support;
a first detachable structure is arranged at the joint of one end of the second side surface and the lower arm support; and a second detachable structure is arranged at the joint of the other end of the second side surface and the middle arm support.
Further, the folding arm support comprises a first driving mechanism, a second driving mechanism and a third driving mechanism;
the first driving mechanism is arranged at the joint of the lower arm support and the connecting arm support and is used for driving the connecting arm support to rotate relative to the lower arm support;
the second driving mechanism is arranged at the joint of the middle arm support and the connecting arm support and is used for driving the connecting arm support to rotate relative to the middle arm support;
the third driving mechanism is arranged at the joint of the upper arm support body and the upper arm gooseneck boom and is used for driving the upper arm gooseneck boom to rotate relative to the upper arm support body.
Further, the first driving mechanism, the second driving mechanism and the third driving mechanism are telescopic driving members.
Furthermore, the fixed end of the first driving mechanism is arranged on the lower section arm support, and the movable end of the first driving mechanism is hinged with the connecting arm support;
the fixed end of the second driving mechanism is arranged on the middle arm support, and the movable end of the second driving mechanism is hinged with the connecting arm support;
the fixed end of the third driving mechanism is arranged on the upper arm support body, and the movable end of the third driving mechanism is hinged with the upper arm gooseneck boom.
Further, the telescopic driving piece is a hydraulic cylinder.
Furthermore, the folding arm support comprises a lengthened arm support, one end of the lengthened arm support is connected with the middle arm support, and the other end of the lengthened arm support is connected with the upper arm support.
The utility model provides a crane, include folding cantilever crane.
The utility model provides a folding arm frame, which comprises a lower section arm frame and a middle arm frame; the lower section arm support and the middle arm support are rotatably connected, so that the lower section arm support and the middle arm support can be folded and unfolded; and a detachable structure is arranged at the joint of the lower section arm support and the middle arm support and is used for locking the rotation between the unfolded lower section arm support and the middle arm support. When the foldable arm support is used, the lower section arm support and the middle arm support are unfolded, and the rotation between the lower section arm support and the middle arm support is locked by using a detachable structure; when the foldable cantilever crane needs to be transported, the detachable structure is opened, and the lower section cantilever crane can rotate relative to the middle cantilever crane, so that the foldable cantilever crane can be folded, the cantilever crane does not need to be disassembled in sections, the foldable cantilever crane is convenient to use, the transition efficiency is improved, and the transportation cost is reduced.
The utility model provides a crane, include folding cantilever crane, because of the crane contains folding cantilever crane, so, when actual transportation, can realize well short cantilever crane combination avoid with the host computer dismouting, practiced thrift cantilever crane dismouting transition time promptly, can realize again that well short cantilever crane makes up the whole car of crane and does not dismouting bicycle transportation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural diagram of a folding arm support provided in embodiment 1 of the present invention;
fig. 2 is a schematic view of folding transportation of the folding arm support provided in embodiment 1 of the present invention;
fig. 3 is a schematic view of a connecting arm support of a folding arm support provided in embodiment 1 of the present invention;
fig. 4 is a schematic view of a first detachable structure of a foldable boom provided in embodiment 1 of the present invention;
fig. 5 is an exploded view of a first detachable structure of a foldable boom provided in embodiment 1 of the present invention;
fig. 6 is a structural diagram of a folding arm support provided in embodiment 2 of the present invention;
fig. 7 is a schematic view of folding transportation of the folding arm support provided in embodiment 2 of the present invention.
Icon: 1-lower arm support; 2-middle arm support; 3-upper arm support body; 4-upper arm goose head; 5-connecting the arm support; 6-a first drive mechanism; 7-a second drive mechanism; 8-a third drive mechanism; 9-lengthening the arm support; 10-a connecting pin; 11-a second sleeve; 12-a third sleeve; 51-a first sleeve; 52-a first side; 53-a second side; 101-a stop; 102-a stop hole; 103-stop pin.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 to 5, the foldable boom provided in this embodiment includes a lower section boom 1 and a middle boom 2; the lower arm support 1 and the middle arm support 2 are rotatably connected, so that the lower arm support 1 and the middle arm support 2 can be folded and unfolded; and a detachable structure is arranged at the joint of the lower arm support 1 and the middle arm support 2 and is used for locking the rotation between the unfolded lower arm support 1 and the unfolded middle arm support 2.
When the foldable arm support is used, the lower arm support 1 and the middle arm support 2 are unfolded, and the rotation between the lower arm support 1 and the middle arm support 2 is locked by using a detachable structure; when transportation is needed, the detachable structure is opened, and the lower section arm support 1 can rotate relative to the middle arm support 2, so that the foldable arm support can be folded, the arm support does not need to be disassembled in sections, the use is convenient, the transition efficiency is improved, and the transportation cost is reduced.
Further, the folding arm support comprises a connecting arm support 5 arranged between the lower section arm support 1 and the middle arm support 2.
The lower arm support 1 is rotatably connected with the connecting arm support 5, a first detachable structure is arranged at the joint of the lower arm support 1 and the connecting arm support 5, and the first detachable structure is used for locking the rotation between the lower arm support 1 and the connecting arm support 5.
The middle arm support 2 is rotatably connected with the connecting arm support 5, a second detachable structure is arranged at the joint of the middle arm support 2 and the connecting arm support 5, and the second detachable structure is used for locking the rotation between the middle arm support 2 and the connecting arm support 5.
Specifically, in the foldable boom provided in this embodiment, one side of the lower arm frame 1 is rotatably connected to the connecting arm frame 5, so that the lower arm frame 1 can rotate relative to the connecting arm frame 5; a first detachable structure is arranged at the joint of the other side of the lower section arm frame 1 and the connecting arm frame 5, and when the folding arm frame is in a use state, the first detachable structure is closed, so that the rotation between the lower section arm frame 1 and the connecting arm frame 5 is locked; when the folding arm support needs to be transported, the first detachable structure is unfolded, so that the lower-section arm support 1 can rotate relative to the connecting arm support 5, and folding is achieved.
One side of the middle arm support 2 is rotatably connected with the connecting arm support 5 together, so that the middle arm support 2 can rotate relative to the connecting arm support 5, a second detachable structure is arranged at the joint of the other side of the middle arm support 2 and the connecting arm support 5, when the folding arm support is in a use state, the second detachable structure is closed, so that the rotation between the middle arm support 2 and the connecting arm support 5 is locked, and when the folding arm support needs to be transported, the second detachable structure is opened, so that the middle arm support 2 can rotate relative to the connecting arm support 5, and therefore folding is achieved.
During actual transportation, the first detachable structure can be opened, the lower section arm support 1 can rotate relative to the connecting arm support 5, the second detachable structure is opened, the middle arm support 2 can rotate relative to the connecting arm support 5, and the connecting arm support 5 is respectively and rotatably connected with the lower section arm support 1 and the middle arm support 2, so that folding and unfolding of the folding arm support are achieved, the arm support does not need to be disassembled in sections, the disassembly and the assembly are convenient, the transition efficiency is improved, and the transportation cost is reduced.
Further, the folding arm support comprises an upper arm support body 3 and an upper arm gooseneck boom 4.
One end of the upper arm support body 3 is connected with one end, far away from the connecting arm support 5, of the middle arm support 2, the upper arm gooseneck boom head 4 is rotatably connected with the upper arm support body 3, the upper arm gooseneck boom head 4 is connected with the upper arm support body 3 through a third detachable structure, and the third detachable structure is used for locking rotation between the upper arm gooseneck boom head 4 and the upper arm support body 3.
Specifically, the folding arm support further comprises an upper arm support body 3 and an upper arm support head 4, one side of the upper arm support head 4 is rotatably connected with the upper arm support body 3, a third detachable structure is arranged at the joint of the other side of the upper arm support head 4 and the upper arm support body 3, when the folding arm support is used, the third detachable structure is closed, so that the rotation between the upper arm support head 4 and the upper arm support body 3 is locked, and when transportation is needed, the third detachable structure can be opened, so that the upper arm support head 4 can rotate relative to the upper arm support body 3, and folding is achieved.
When transportation is needed, the folding arm support falls down, the third detachable structure is opened, and the upper arm gooseneck boom 4 rotates for a certain angle relative to the upper arm support body 3 and is used for being fixed on the tail structure of the transportation vehicle; when the movable connecting rod is used for lifting cargos, the upper arm gooseneck boom 4 rotates reversely, the third detachable structure is closed, and the upper arm gooseneck boom 4 is connected with the upper arm support body 3.
The first detachable structure comprises a connecting pin 10, a first sleeve 51 arranged on the connecting arm support 5, and a second sleeve 11 and a third sleeve 12 arranged on the lower arm support 1, wherein the second sleeve 11 and the third sleeve 12 are arranged at intervals, the first sleeve 51 can rotate to a position between the second sleeve 11 and the third sleeve 12, and the connecting pin 10 is inserted and sequentially penetrates through the second sleeve 11, the first sleeve 51 and the third sleeve 12, so that detachable connection of the lower arm support 1 and the connecting arm support 5 is realized.
One end of the connecting pin 10 may be provided with a stopper 101, and the other end may be provided with a stopper hole 102, into which a stopper pin 103 is inserted to prevent the connecting pin 10 from falling off.
The connecting pin 10 may be replaced with a bolt assembly, and may perform the same function.
The second detachable structure and the third detachable structure may be the same as the above-mentioned detachable structure, and those skilled in the art may select other detachable structure forms to achieve the detachable connection conveniently and quickly.
Further, the connecting arm support 5 is of a trapezoidal structure; the connecting arm support 5 comprises a first side surface 52 and a second side surface 53 which are parallel to each other; one end of the first side surface 52 is rotatably connected with one side of the lower section arm support 1; the other end of the first side surface 52 is rotatably connected with one side of the middle arm support 2; a first detachable structure is arranged at the joint of one end of the second side surface 53 and the lower-section arm frame 1; a second detachable structure is arranged at the joint of the other end of the second side surface 53 and the middle arm support 2.
Specifically, the connecting arm support 5 may be a trapezoid structure, and the joint between the lower arm support 1 and the middle arm support 2 and the connecting arm support 5 is in a shape corresponding to the waist of the trapezoid structure, so that the lower arm support 1 and the middle arm support 2 can be conveniently connected.
In the connecting arm support 5 with the trapezoid structure, the first side surface 52 and the second side surface 53 are parallel to each other and perpendicular to the length direction of the folding arm support, and the length of the first side surface 52 is smaller than that of the second side surface 53.
The lower arm support 1 is rotatably connected with one end of the first side surface 52, and the first detachable structure is arranged at the joint of the lower arm support 1 and the corresponding second side surface 53.
The middle arm support 2 is rotatably connected with the other end of the first side surface 52, and the second detachable structure is arranged at the joint of the middle arm support 2 and the corresponding second side surface 53.
During actual folding, the first detachable structure and the second detachable structure are opened, the second side face of the connecting arm support 5 is rotated towards the direction far away from the middle arm support 2, the upper arm support is rotated towards the direction far away from the connecting arm support 5, the lower arm support 1 and the middle arm support 2 are folded, one end, far away from the connecting arm support 5, of the upper arm support is fixed with the crane, and tools such as ropes are used for fixing the upper arm support, the middle arm support 2 and the connecting arm support 5.
Further, the folding arm support comprises a first driving mechanism 6, a second driving mechanism 7 and a third driving mechanism 8.
The first driving mechanism 6 is arranged at the joint of the lower arm support 1 and the connecting arm support 5, and the first driving mechanism 6 is used for driving the connecting arm support 5 to rotate relative to the lower arm support 1.
The second driving mechanism 7 is arranged at the joint of the middle arm support 2 and the connecting arm support 5, and the second driving mechanism 7 is used for driving the connecting arm support 5 to rotate relative to the middle arm support 2.
The third driving mechanism 8 is arranged at the joint of the upper arm support body 3 and the upper arm gooseneck boom 4, and the third driving mechanism 8 is used for driving the upper arm gooseneck boom 4 to rotate relative to the upper arm support body 3.
Preferably, the first drive mechanism 6, the second drive mechanism 7 and the third drive mechanism 8 are telescopic drives.
Preferably, the fixed end of the first driving mechanism 6 is arranged on the lower arm support 1, and the movable end of the first driving mechanism 6 is hinged with the connecting arm support 5.
The fixed end of the second driving mechanism 7 is arranged on the middle arm support 2, and the movable end of the second driving mechanism 7 is hinged with the connecting arm support 5.
The fixed end of the third driving mechanism 8 is arranged on the upper arm support body 3, and the movable end of the third driving mechanism 8 is hinged with the upper arm gooseneck boom 4.
In this embodiment, the first driving mechanism 6 is disposed at a joint of the lower arm support 1 and the connecting arm support 5, and is configured to achieve automatic folding of the lower arm support 1 and the connecting arm support 5, and the second driving mechanism 7 is disposed at a joint of the middle arm support 2 and the connecting arm support 5, and is configured to achieve automatic folding of the middle arm support 2 and the connecting arm support 5.
Specifically, the fixed end of the first driving mechanism 6 is arranged on the lower section arm support 1, and the movable end of the first driving mechanism 6 is connected with the connecting arm support 5; the fixed end of the second driving mechanism 7 is arranged on the middle arm support 2, and the movable end of the second driving mechanism 7 is connected with the connecting arm support 5.
The third driving mechanism 8 is arranged at the joint of the upper arm support body 3 and the upper arm support head 4, the fixed end of the third driving mechanism 8 is connected to the upper arm support body 3, and the movable end of the third driving mechanism 8 is connected with the upper arm support head 4 and used for achieving automatic folding of the lower arm support 1 and the connecting arm support 5.
The fixed end of the first driving mechanism 6 is connected to the lower section arm support 1, and the movable end of the first driving mechanism is hinged to the connecting arm support 5; the fixed end of the second driving mechanism 7 is connected to the middle arm support 2, and the movable end of the second driving mechanism is hinged to the connecting arm support 5; the fixed end of the third driving mechanism 8 is connected to the upper arm support body 3, the movable end of the third driving mechanism is hinged to the upper arm gooseneck boom head 4, and when the first driving mechanism 6 and the second driving mechanism 7 drive the connecting arm support 5, the third driving mechanism 8 drives the upper arm gooseneck boom head 4, so that folding can be achieved more conveniently.
It should be noted that the fixed end of the first driving mechanism 6 may also be hinged to the lower arm support 1, the second driving mechanism 7 may be hinged to the middle arm support 2, and the third driving mechanism 8 may be hinged to the upper arm support body 3.
Preferably, the telescopic drive is a hydraulic cylinder.
Example 2
As shown in fig. 6 and 7, the difference from embodiment 1 is that the folding arm support includes a lengthened arm support 9, one end of the lengthened arm support 9 is connected to the middle arm support 2, and the other end of the lengthened arm support 9 is connected to the upper arm support.
Specifically, the lengthened arm support 9 is arranged between the middle arm support 2 and the upper arm support, one end of the lengthened arm support 9 is detachably connected with the middle arm support 2, and the other end of the lengthened arm support 9 is detachably connected with one end, far away from the upper arm gooseneck boom 4, of the upper arm support body 3 of the upper arm support.
When in transportation, the lengthened arm support 9 can be only dismantled, and other parts of the folding arm support are not dismantled and are free from being dismantled and assembled with the main machine, so that the transition time of the crane is saved.
It should be noted that the number of the lengthened arm supports 9 may be one or more, when there are a plurality of lengthened arm supports 9, the lengthened arm supports may be connected in sequence, and the plurality of lengthened arm supports 9 connected in sequence are connected between the middle arm support 2 and the upper arm support.
The crane provided by the embodiment comprises the folding arm support. Because the crane comprises the folding arm support, the middle-short arm support combination can be prevented from being disassembled and assembled with a host machine during actual transportation, the arm support disassembling and transferring time is saved, and the non-disassembling and single-vehicle transportation of the whole crane with the middle-short arm support combination can be realized.
In summary, the foldable boom provided in this embodiment includes a lower section boom 1 and a middle boom 2; the lower arm support 1 and the middle arm support 2 are rotatably connected, so that the lower arm support 1 and the middle arm support 2 can be folded and unfolded; and a detachable structure is arranged at the joint of the lower arm support 1 and the middle arm support 2 and is used for locking the rotation between the unfolded lower arm support 1 and the unfolded middle arm support 2. When the foldable arm support is used, the lower arm support 1 and the middle arm support 2 are unfolded, and the rotation between the lower arm support 1 and the middle arm support 2 is locked by using a detachable structure; when transportation is needed, the detachable structure is opened, and the lower section arm support 1 can rotate relative to the middle arm support 2, so that the foldable arm support can be folded, the arm support does not need to be disassembled in sections, the use is convenient, the transition efficiency is improved, and the transportation cost is reduced.
The crane provided by the embodiment comprises the folding arm support, and the crane comprises the folding arm support, so that the middle-short arm support combination can be prevented from being disassembled and assembled with a host machine during actual transportation, the arm support disassembling and transition time is saved, and the non-disassembling and single-vehicle transportation of the whole crane with the middle-short arm support combination can be realized.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A folding arm frame is characterized by comprising a lower section arm frame (1) and a middle arm frame (2);
the lower arm support (1) and the middle arm support (2) are rotatably connected, so that the lower arm support (1) and the middle arm support (2) can be folded and unfolded;
the detachable structure is arranged at the joint of the lower section arm support (1) and the middle arm support (2) and used for locking the rotation between the unfolded lower section arm support (1) and the unfolded middle arm support (2).
2. The folding boom according to claim 1, characterized in that it comprises a connecting boom (5) arranged between the lower section boom (1) and the middle boom (2);
the lower arm support (1) is rotatably connected with the connecting arm support (5), a first detachable structure is arranged at the joint of the lower arm support (1) and the connecting arm support (5), and the first detachable structure is used for locking the rotation between the lower arm support (1) and the connecting arm support (5);
the middle arm support (2) is rotatably connected with the connecting arm support (5), a second detachable structure is arranged at the joint of the middle arm support (2) and the connecting arm support (5), and the second detachable structure is used for locking the rotation between the middle arm support (2) and the connecting arm support (5).
3. The folding boom according to claim 2, characterized in that the folding boom comprises an upper boom, which comprises an upper boom body (3) and an upper boom gooseneck boom head (4);
one end of the upper arm support body (3) is connected with one end, far away from the connecting arm support (5), of the middle arm support (2), the upper arm goose head (4) is rotatably connected with the upper arm support body (3), the upper arm goose head (4) is connected with the upper arm support body (3) through a third detachable structure, and the third detachable structure is used for locking rotation between the upper arm goose head (4) and the upper arm support body (3).
4. The folding arm support according to claim 3, characterized in that said connecting arm support (5) is of a trapezoidal structure; the connecting arm support (5) comprises a first side surface (52) and a second side surface (53) which are parallel to each other;
one end of the first side surface (52) is rotatably connected with one side of the lower section arm support (1);
the other end of the first side surface (52) is rotatably connected with one side of the middle arm support (2);
a first detachable structure is arranged at the joint of one end of the second side surface (53) and the lower section arm support (1); a second detachable structure is arranged at the joint of the other end of the second side surface (53) and the middle arm support (2).
5. The folding boom according to claim 3, characterized in that it comprises a first drive mechanism (6), a second drive mechanism (7) and a third drive mechanism (8);
the first driving mechanism (6) is arranged at the joint of the lower section arm support (1) and the connecting arm support (5), and the first driving mechanism (6) is used for driving the connecting arm support (5) to rotate relative to the lower section arm support (1);
the second driving mechanism (7) is arranged at the joint of the middle arm support (2) and the connecting arm support (5), and the second driving mechanism (7) is used for driving the connecting arm support (5) to rotate relative to the middle arm support (2);
the third driving mechanism (8) is arranged at the joint of the upper arm support body (3) and the upper arm gooseneck boom (4), and the third driving mechanism (8) is used for driving the upper arm gooseneck boom (4) to rotate relative to the upper arm support body (3).
6. The folding boom according to claim 5, characterized in that the first drive mechanism (6), the second drive mechanism (7) and the third drive mechanism (8) are telescopic drives.
7. The folding arm support according to claim 6, characterized in that the fixed end of the first driving mechanism is arranged on the lower arm support (1), and the movable end of the first driving mechanism (6) is hinged with the connecting arm support (5);
the fixed end of the second driving mechanism is arranged on the middle arm support (2), and the movable end of the second driving mechanism (7) is hinged with the connecting arm support (5);
the fixed end of the third driving mechanism (8) is arranged on the upper arm support body (3), and the movable end of the third driving mechanism (8) is hinged with the upper arm gooseneck boom (4).
8. The folding boom according to claim 7, characterized in that the telescopic drive is a hydraulic cylinder.
9. The folding arm support according to claim 3, characterized in that the folding arm support comprises a lengthened arm support (9), one end of the lengthened arm support (9) is connected with the middle arm support (2), and the other end of the lengthened arm support (9) is connected with the upper arm support.
10. A crane, comprising a folding boom according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020939495.5U CN212198263U (en) | 2020-05-28 | 2020-05-28 | Folding cantilever crane and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020939495.5U CN212198263U (en) | 2020-05-28 | 2020-05-28 | Folding cantilever crane and crane |
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| Publication Number | Publication Date |
|---|---|
| CN212198263U true CN212198263U (en) | 2020-12-22 |
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| CN202020939495.5U Active CN212198263U (en) | 2020-05-28 | 2020-05-28 | Folding cantilever crane and crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753766A (en) * | 2021-11-05 | 2021-12-07 | 澳斯卡科技服务(江苏)有限公司 | Small-size portable low latitude or high altitude operation loop wheel machine |
-
2020
- 2020-05-28 CN CN202020939495.5U patent/CN212198263U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753766A (en) * | 2021-11-05 | 2021-12-07 | 澳斯卡科技服务(江苏)有限公司 | Small-size portable low latitude or high altitude operation loop wheel machine |
| CN113753766B (en) * | 2021-11-05 | 2023-11-14 | 澳斯卡科技服务(江苏)有限公司 | Small-size portable low altitude or high altitude construction loop wheel machine |
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