CN214828508U - Portal crane with foldable cantilever - Google Patents
Portal crane with foldable cantilever Download PDFInfo
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- CN214828508U CN214828508U CN202120964906.0U CN202120964906U CN214828508U CN 214828508 U CN214828508 U CN 214828508U CN 202120964906 U CN202120964906 U CN 202120964906U CN 214828508 U CN214828508 U CN 214828508U
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- cantilever
- seat plate
- main beam
- cantilever beam
- oil cylinder
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Abstract
The utility model discloses a portal crane with a foldable cantilever, which comprises a girder, wherein two sides of the lower end of the girder are both fixed with supporting columns, and the lower end of each supporting column is provided with a traveling mechanism; two ends of the main beam are correspondingly hinged with cantilever beams through hinge shafts, the upper part of the column body of each supporting upright column is hinged with a folded arm oil cylinder, and a piston rod of each folded arm oil cylinder is hinged with the cantilever beam; when a piston rod of the arm folding oil cylinder extends out, the cantilever beam and the main beam can be aligned and level correspondingly, and at the moment, the track of the cantilever beam is in butt joint with the track of the main beam. The utility model discloses it can the reinforce to be suitable for, and the dolly can move smoothly to the cantilever beam and lift by crane the operation, can realize the automatic connection locking when the cantilever beam aligns with the girder, need not artifical plug bolt, can fold the cantilever beam after accomplishing this workshop section operation task, can get into next operation workshop section through the barrier smoothly, avoids the hoist to dismantle the trouble of bringing, promotes the operating efficiency.
Description
Technical Field
The utility model relates to a hoist technical field specifically is a folding gantry crane of cantilever.
Background
At present, the length of a main beam of a traditional crane is extended to enable the crane to meet the requirement that a trolley runs to a cantilever end for operation, and the main beam of the traditional externally suspended structure is integrated and can not be detached; the crane can pass through after the cantilever needs to be disassembled under the condition that the cantilever side has the obstacle, the cart cannot reach the cantilever side to carry out lifting operation, the use of the portal crane is limited, and higher requirements of related fields on lifting products cannot be met.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome current defect, a folding gantry crane of cantilever is provided, it can the reinforce to be suitable for, the dolly can move smoothly to the cantilever beam operation of lifting by crane, can realize the automatic connection locking when the cantilever beam aligns with the girder, need not artifical plug bolt, can fold the cantilever beam after accomplishing this workshop section operation task, can get into next operation workshop section through the barrier smoothly, avoid the hoist to dismantle the trouble of bringing, promote the operating efficiency, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a portal crane with a foldable cantilever comprises a main beam, wherein support stand columns are fixed on two sides of the lower end of the main beam, and a traveling mechanism is arranged at the lower end of each support stand column; two ends of the main beam are correspondingly hinged with cantilever beams through hinge shafts, the upper part of the column body of each supporting upright column is hinged with a folded arm oil cylinder, and a piston rod of each folded arm oil cylinder is hinged with the cantilever beam; when a piston rod of the folding arm oil cylinder extends out, the cantilever beam and the main beam are correspondingly aligned, and at the moment, the track of the cantilever beam is butted with the track of the main beam; when a piston rod of the arm folding oil cylinder contracts, the cantilever beam can be turned to the lower part of the main beam around the hinge shaft; when the cantilever beam and the main beam are correspondingly flush, a bolt structure capable of fixedly connecting the cantilever beam and the main beam is arranged between the cantilever beam and the main beam;
the bolt structure comprises a first base plate, a second base plate and a bolt; the first seat plate is fixedly connected with the cantilever beam, the second seat plate is fixedly connected with the main beam, when the cantilever beam is correspondingly flush with the main beam, the first seat plate and the second seat plate are correspondingly inserted and matched, and a driving device for driving a bolt to act and enabling the first seat plate and the second seat plate to be connected and locked is arranged on the surface of the first seat plate or the second seat plate; the bolt structure further comprises a contact switch, when the cantilever beam is parallel to the main beam correspondingly, the first base plate or the second base plate is in contact with the contact switch, and the contact switch is interlocked with the driving device.
Preferably, the girder is provided with a trolley, the trolley is connected with a lifting appliance through a steel wire rope, and when the cantilever beam is parallel and level with the girder, the trolley can move to the cantilever beam from the girder.
Preferably, the driving device is one of an oil cylinder or an electric cylinder, a telescopic end of the driving device is fixedly connected with the bolt, and the driving device is fixedly connected with the first seat plate or the second seat plate through a support.
Preferably, one end of the bolt far away from the driving device is a tapered cylinder, and the first seat plate and the second seat plate are both provided with jacks matched with the bolt.
Preferably, the contact switch is arranged on the plate surface of the first seat plate or the second seat plate.
Preferably, the cylinder trunnion of the arm folding oil cylinder is connected with the support upright through a hinge seat, and the piston rod trunnion of the arm folding oil cylinder is connected with the cantilever through the hinge seat.
Preferably, the main beam is a multi-section detachable cross beam.
Preferably, the support column is a multi-section detachable column.
Compared with the prior art, the beneficial effects of the utility model are that: according to the portal crane with the foldable cantilever, the folding and the extending of the cantilever beam are realized through the arm folding oil cylinder, so that the requirements that the cart can run smoothly when encountering an obstacle and the trolley can reach the cantilever beam end for operation are met, the object below the cantilever beam operation plane can be lifted smoothly, the trouble caused by the disassembly of the crane is avoided, and the operation efficiency is improved; the cantilever beam is automatically connected and locked with the main beam in alignment through the driving device, and the bolt is not required to be plugged and pulled manually. In addition, the main beam is a multi-section detachable cross beam, the supporting stand column is a multi-section detachable stand column, the lifting height and span of the portal crane can be adjusted by detaching the assembled main beam and the supporting stand column, and the applicability is strong.
Drawings
Fig. 1 is a schematic view of the working state structure of the present invention;
FIG. 2 is a schematic view of the structure of the working state of the present invention;
FIG. 3 is an enlarged view of a portion of the structure of FIG. 1;
FIG. 4 is a schematic view of the pin structure of the present invention;
FIG. 5 is a schematic diagram showing the separation of the plug structure of the present invention;
fig. 6 is a schematic view of another embodiment of the present invention.
In the figure: 1 trolley, 2 cantilever beams, 3 main beams, 3.1 articulated shafts, 4 lifting appliances, 5 folding arm oil cylinders, 6 supporting upright posts, 7 traveling mechanisms, 8 bolt structures, 8.1 seat plate I, 8.2 driving devices, 8.3 supports, 8.4 seat plate II, 8.5 contact switches and 8.6 bolts.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Referring to fig. 1-6, the present invention provides a technical solution: a portal crane with a foldable cantilever comprises a main beam 3, wherein support columns 6 are fixed on two sides of the lower end of the main beam 3, and a travelling mechanism 7 is arranged at the lower end of each support column 6; two ends of the main beam 3 are correspondingly hinged with cantilever beams 2 through hinge shafts 3.1, the upper part of the column body of each supporting upright 6 is hinged with a folded arm oil cylinder 5, and a piston rod of each folded arm oil cylinder 5 is hinged with the cantilever beam 2; when a piston rod of the folding arm oil cylinder 5 extends out, the cantilever beam 2 and the main beam 3 can be correspondingly leveled, and at the moment, the track of the cantilever beam 2 is butted with the track of the main beam 3; when a piston rod of the arm folding oil cylinder 5 is contracted, the cantilever beam 2 can be overturned to the lower part of the main beam 3 around the hinge shaft 3.1; the main beam 3 is provided with a trolley 1, the trolley 1 is connected with a lifting appliance 4 through a steel wire rope, and when the cantilever beam 2 is correspondingly flush with the main beam 3, the trolley 1 can move onto the cantilever beam 2 from the main beam 3; the cantilever beam 2 is enabled to reach a horizontal state through the jacking action of the arm folding oil cylinder 5 and is in butt joint with the main beam 3, and the hoisting trolley 1 can run to the end of the cantilever beam 2 to carry out hoisting operation, so that the operation requirement is met; when the cart needs to enter the next working section for operation, the arm folding oil cylinder 5 contracts, the cantilever beam 2 is slowly lowered to be in a state vertical to the main beam 3, and the cart travels to the next working section through the traveling mechanism 7, so that the operation is repeated, the crane can pass through the obstacle by folding the cantilever beam 2, the trouble caused by crane disassembly is avoided, the operation efficiency is improved, the hoisting trolley 1 and the traveling mechanism 7 are the prior art, and the details are not described herein;
as shown in fig. 3, 4 and 5, when the cantilever beam 2 is flush with the main beam 3, a pin structure 8 capable of fixedly connecting the cantilever beam 2 with the main beam 3 is arranged between the cantilever beam 2 and the main beam 3, and the pin structure 8 includes a first seat plate 8.1, a second seat plate 8.4 and a pin 8.6; the first seat plate 8.1 is fixedly connected with the cantilever beam 2, the second seat plate 8.4 is fixedly connected with the main beam 3, when the cantilever beam 2 is parallel and level to the main beam 3, the first seat plate 8.1 is correspondingly inserted and matched with the second seat plate 8.4, a driving device 8.2 for driving the bolt 8.6 to move and enabling the first seat plate 8.1 and the second seat plate 8.4 to be connected and locked is arranged on the surface of the first seat plate 8.1 or the second seat plate 8.4, when the cantilever beam 2 reaches a horizontal state and is aligned with the main beam 3, the driving device 8.2 moves to insert the bolt 8.6 into the first seat plate 8.1 and the second seat plate 8.4, so that the cantilever beam 2 and the main beam 3 are fixed, the connection firmness is increased, when the cantilever beam 2 needs to be folded, the driving device 8.2 drives the bolt 8.6 to leave the first seat plate 8.1 and the second seat plate 8.4, an operator does not need to move on the main beam 3 to insert and insert the bolt 8.6, and unnecessary potential safety hazards are reduced; the plug pin structure 8 further comprises a contact switch 8.5, when the cantilever beam 2 is parallel to and level with the main beam 3, the first seat plate 8.1 or the second seat plate 8.4 is in contact with the contact switch 8.5, the contact switch 8.5 is interlocked with the driving device 8.2, and when the cantilever beam is aligned with the main beam, the contact switch 8.5 is touched, so that the driving device 8.2 automatically acts, the plug pin 8.6 is automatically inserted, and the automatic plug function is realized;
the driving device 8.2 is one of an oil cylinder or an electric cylinder, the telescopic end of the driving device 8.2 is fixedly connected with the bolt 8.6, the driving device 8.2 is fixedly connected with the first seat plate 8.1 or the second seat plate 8.4 through the bracket 8.3, the driving device 8.2 can be arranged on the first seat plate 8.1 or the second seat plate 8.4, in the embodiment, the driving device 8.2 is arranged on the second seat plate 8.4; the contact switch 8.5 is arranged on the plate surface of the first seat plate 8.1 or the second seat plate 8.4, in the embodiment, the contact switch 8.5 is arranged on the second seat plate 8.4, when the cantilever beam 2 is correspondingly flush with the main beam 3, the first seat plate 8.1 is contacted with the contact switch 8.5, and then the driving device 8.2 is controlled to execute corresponding action;
one end of the bolt 8.6, which is far away from the driving device 8.2, is a tapered cylinder, the first seat plate 8.1 and the second seat plate 8.4 are both provided with jacks matched with the bolt 8.6, and one end of the bolt 8.6 is a pointed end and is conveniently aligned to and inserted into the jacks;
a cylinder trunnion of the arm folding oil cylinder 5 is connected with the support upright 6 through a hinge seat, and a piston rod trunnion of the arm folding oil cylinder 5 is connected with the cantilever beam 2 through the hinge seat;
as shown in fig. 6, the main beam 3 is a multi-section detachable beam; support post 6 is the detachable stand of multistage, assembles girder 3 and support post 6 through demolising and can realize portal crane lifting height, span adjustable purpose to be applicable to tunnel construction, adaptability is strong.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a folding gantry crane of cantilever, includes girder (3), its characterized in that: supporting upright columns (6) are fixed on two sides of the lower end of the main beam (3), and a walking mechanism (7) is arranged at the lower end of each supporting upright column (6); two ends of the main beam (3) are correspondingly hinged with cantilever beams (2) through hinge shafts (3.1), the upper part of the column body of each supporting upright column (6) is hinged with a folding arm oil cylinder (5), and a piston rod of each folding arm oil cylinder (5) is hinged with each cantilever beam (2); when a piston rod of the folding arm oil cylinder (5) extends out, the cantilever beam (2) and the main beam (3) can be correspondingly leveled, and at the moment, the track of the cantilever beam (2) is butted with the track of the main beam (3); when a piston rod of the folding arm oil cylinder (5) contracts, the cantilever beam (2) can be overturned to the lower part of the main beam (3) around the hinge shaft (3.1); when the cantilever beam (2) and the main beam (3) are correspondingly flush, a bolt structure (8) capable of fixedly connecting the cantilever beam (2) and the main beam (3) is arranged between the cantilever beam (2) and the main beam;
the bolt structure (8) comprises a first seat plate (8.1), a second seat plate (8.4) and a bolt (8.6); the first seat plate (8.1) is fixedly connected with the cantilever beam (2), the second seat plate (8.4) is fixedly connected with the main beam (3), when the cantilever beam (2) and the main beam (3) are correspondingly flush, the first seat plate (8.1) and the second seat plate (8.4) are correspondingly inserted and matched, and a driving device (8.2) for driving a bolt (8.6) to act and enabling the first seat plate (8.1) and the second seat plate (8.4) to be connected and locked is arranged on the plate surface of the first seat plate (8.1) or the second seat plate (8.4); the bolt structure (8) further comprises a contact switch (8.5), when the cantilever beam (2) and the main beam (3) are parallel and level, the first seat plate (8.1) or the second seat plate (8.4) is in contact with the contact switch (8.5), and the contact switch (8.5) is interlocked with the driving device (8.2).
2. The gantry crane with foldable cantilever according to claim 1, wherein: be equipped with jack-up dolly (1) on girder (3), jack-up dolly (1) is connected with hoist (4) through wire rope, and when cantilever beam (2) and girder (3) correspond the parallel and level, jack-up dolly (1) can be followed girder (3) and removed on cantilever beam (2).
3. The gantry crane with foldable cantilever according to claim 1, wherein: the driving device (8.2) is one of an oil cylinder or an electric cylinder, the telescopic end of the driving device (8.2) is fixedly connected with the bolt (8.5), and the driving device (8.2) is fixedly connected with the first seat plate (8.1) or the second seat plate (8.4) through the bracket (8.3).
4. The gantry crane with foldable cantilever according to claim 1, wherein: one end, far away from the driving device (8.2), of the bolt (8.6) is a gradually-reduced cylinder, and the first seat plate (8.1) and the second seat plate (8.4) are both provided with jacks matched with the bolt (8.6).
5. The gantry crane with foldable cantilever according to claim 1, wherein: the contact switch (8.5) is arranged on the plate surface of the first seat plate (8.1) or the second seat plate (8.4).
6. The gantry crane with foldable cantilever according to claim 1, wherein: the cylinder trunnion of the arm folding oil cylinder (5) is connected with the support upright post (6) through a hinge seat, and the piston rod trunnion of the arm folding oil cylinder (5) is connected with the cantilever beam (2) through the hinge seat.
7. The gantry crane with foldable cantilever according to claim 1, wherein: the main beam (3) is a multi-section detachable cross beam.
8. The gantry crane with foldable cantilever according to claim 1, wherein: the supporting upright post (6) is a multi-section detachable upright post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120964906.0U CN214828508U (en) | 2021-05-08 | 2021-05-08 | Portal crane with foldable cantilever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120964906.0U CN214828508U (en) | 2021-05-08 | 2021-05-08 | Portal crane with foldable cantilever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214828508U true CN214828508U (en) | 2021-11-23 |
Family
ID=78772506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120964906.0U Active CN214828508U (en) | 2021-05-08 | 2021-05-08 | Portal crane with foldable cantilever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214828508U (en) |
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2021
- 2021-05-08 CN CN202120964906.0U patent/CN214828508U/en active Active
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