CN216471918U - Novel tower top structure of swing arm type tower crane - Google Patents
Novel tower top structure of swing arm type tower crane Download PDFInfo
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- CN216471918U CN216471918U CN202122566847.4U CN202122566847U CN216471918U CN 216471918 U CN216471918 U CN 216471918U CN 202122566847 U CN202122566847 U CN 202122566847U CN 216471918 U CN216471918 U CN 216471918U
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- support frame
- front support
- rear support
- maintenance platform
- tower
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Abstract
The utility model discloses a tower top structure of a novel movable arm type tower crane, which comprises a front support frame, a rear support frame, a maintenance platform and a guard-ring-free ladder stand, wherein the rear support frame is of a truss structure, the upper end of the rear support frame is fixed at the bottom of the maintenance platform, the front support frame is obliquely arranged, the maintenance platform is arranged around the upper end of the front support frame, the guard-ring-free ladder stand and the front support frame are arranged side by side, the width of the upper end of the rear support frame is smaller than that of the lower end of the rear support frame, and a single guide rod type backward tilting prevention device is arranged on the guard-ring-free ladder stand. The structure increases the installation space below the front support frame and the rear support frame and the maintenance space of the ladder stand, and the structural layout is more reasonable.
Description
Technical Field
The utility model relates to the technical field of tower cranes, in particular to a tower top structure of a novel swing-arm type tower crane.
Background
The tower crane is a common hoisting device for construction engineering operation, a boom of the jib tower crane can perform pitching amplitude variation, and has the advantage of unique thickness in urban cluster buildings, and the existing tower top structure (figure 4) of the jib tower crane has the following defects: the cantilever crane has the advantages that firstly, the inclined strut is arranged between the front strut and the rear strut, the included angle between the front strut and the rear strut is small, so that the cantilever crane does not have enough installation and working space, and the space below the tower top is small, so that the space is occupied after the hoisting mechanism and the luffing mechanism are installed, so that platforms on two sides of the balance arm cannot be communicated, the requirement on the precision of the inclined strut is high, and the time and the labor are consumed in the machining process; secondly, the included angle between the tower top crawling ladder and the horizontal plane is small, the crawling ladder has the defects that the moving space is small when maintenance personnel work due to the protective ring, and the like, so that the installation and maintenance cycle of the swing arm tower crane is long, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tower top structure of a novel swing arm type tower crane, which can reserve enough installation space below a front support frame and a rear support frame, is beneficial to installation and arrangement of a cantilever crane, improves a ladder stand and increases maintenance space.
In order to achieve the purpose, the utility model provides a tower top structure of a novel swing-arm type tower crane, which comprises a front support frame, a rear support frame, a maintenance platform and a ladder without a guard ring, wherein the rear support frame is of a truss structure, the upper end of the rear support frame is fixed at the bottom of the maintenance platform, the front support frame is arranged in an inclined manner, and the maintenance platform is arranged around the upper end of the front support frame; the guard-ring-free ladder stand and the front support frame are arranged side by side.
Further, the width of the upper end of the rear support frame is smaller than that of the lower end of the rear support frame.
Furthermore, a single guide rod type backward tilting prevention device is arranged on the front support frame.
Furthermore, a small maintenance platform is arranged on the front support frame and below the anti-back-tilting device.
The utility model has the technical effects that: the rear strut is improved from a rod type to a truss type, and the supporting force of the rear strut is enhanced, so that the diagonal brace can be omitted, more space is reserved below the rear strut, and the rear strut is used for installing the cantilever crane; the ladder stand guard ring in the prior art is removed, and the maintenance space can be increased by matching with the anti-falling buckle.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a schematic structural view of the back bracket;
FIG. 4 is a schematic diagram of a prior art overhead structure;
in the figure, 1-a front support frame, 2-a rear support frame, 3-a maintenance platform, 4-a guard ring-free ladder stand, 5-a single guide rod type backward tilting prevention device and 6-a small maintenance platform.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the tower top structure of the novel swing arm type tower crane comprises a front support frame 1, a rear support frame 2, a maintenance platform 3 and a guard-ring-free ladder 4, wherein the rear support frame 2 is of a truss structure, the upper end of the rear support frame is fixed at the bottom of the maintenance platform 3, the front support frame 1 is arranged obliquely, and the maintenance platform 3 is arranged around the upper end of the front support frame 1. The guard-ring-free ladder stand 4 is arranged side by side with the front support frame 1. As shown in fig. 3, the width of the upper end of the back bracket 2 is smaller than that of the lower end thereof to increase the supporting force. As shown in fig. 2, a single guide bar type reclining prevention device 5 is provided on the front stay 1. A small maintenance platform 6 is arranged on the front supporting frame 1 and below the anti-back-tilting device 5.
Compared with the prior art, the rear support frame 2 is changed into a truss structure, the supporting force is strengthened, inclined supporting rods in the prior art can be removed, an installation space is reserved below the rear support frame, the front support frame 1 and the rear support frame 2 are made of high-strength steel, the included angle between the front support frame 1 and the rear support frame 2 is increased to 28 degrees from the original 20 degrees, a foundation is laid for reserving more installation spaces below the rear support frame, and the maintenance cost and the maintenance time of the mechanism can be reduced in the later use process.
Compared with the prior art, the guard ring-free ladder stand 3 has the advantages that the guard ring is omitted, the anti-falling buckle is matched, the maintenance space can be increased, the angle of the ladder stand is slowed down, the ladder stand can be conveniently used for an operator to climb up and down, handrails with a certain height are arranged on two sides of the ladder stand, and safety protection is provided for the operator. It can be seen from fig. 4 that, because the cat ladder has set up the protective shroud among the prior art, its back at the protective shroud is installed to its hypsokinesis prevention device, this kind of mode can influence wire rope and wear around, and it is also inconvenient to prevent the maintenance of hypsokinesis device, after removing the protective shroud, the cat ladder is arranged in the left side of preceding strut in a flat way, the equipment on preceding strut 1 is maintained to the convenience like this, a maintenance small platform 6 has been set up in the below of preventing hypsokinesis device 5, through the cat ladder direct on the maintenance small platform 6, then it is more convenient. Compared with the prior art that the front support frame and the ladder stand are arranged up and down, the side-by-side arrangement of the ladder stand is more convenient to overhaul. The single-rod type backward tilting prevention device 5 is internally provided with a spring, the spring stroke is longer than that of the prior art, and the backward tilting prevention effect is enhanced. The anti-back-tipping device is used for preventing the movable arm from contacting other equipment when the movable arm is lifted.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes which can be made within the knowledge of those skilled in the art without departing from the gist of the present invention are within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a novel top of tower structure of swing arm formula tower machine which characterized in that: the device comprises a front support frame (1), a rear support frame (2), a maintenance platform (3) and a guard-ring-free ladder (4), wherein the rear support frame (2) is of a truss structure, the upper end of the rear support frame is fixed at the bottom of the maintenance platform (3), the front support frame (1) is arranged obliquely, and the maintenance platform (3) is arranged around the upper end of the front support frame (1); the guard-ring-free ladder stand (4) and the front support frame (1) are arranged side by side.
2. The tower top structure of the novel jib tower crane according to claim 1, wherein: the width of the upper end of the rear support frame (2) is smaller than that of the lower end.
3. The tower top structure of the novel jib tower crane according to claim 1, wherein: the front support frame (1) is provided with a single guide rod type backward tilting prevention device (5).
4. The tower top structure of the novel jib tower crane according to claim 3, wherein: and a small maintenance platform (6) is arranged on the front support frame (1) and below the anti-back-tilting device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122566847.4U CN216471918U (en) | 2021-10-25 | 2021-10-25 | Novel tower top structure of swing arm type tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122566847.4U CN216471918U (en) | 2021-10-25 | 2021-10-25 | Novel tower top structure of swing arm type tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216471918U true CN216471918U (en) | 2022-05-10 |
Family
ID=81442057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122566847.4U Active CN216471918U (en) | 2021-10-25 | 2021-10-25 | Novel tower top structure of swing arm type tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216471918U (en) |
-
2021
- 2021-10-25 CN CN202122566847.4U patent/CN216471918U/en active Active
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