CN219585709U - Main chord, underframe foundation section and tower crane - Google Patents
Main chord, underframe foundation section and tower crane Download PDFInfo
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- CN219585709U CN219585709U CN202321125101.2U CN202321125101U CN219585709U CN 219585709 U CN219585709 U CN 219585709U CN 202321125101 U CN202321125101 U CN 202321125101U CN 219585709 U CN219585709 U CN 219585709U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to the field of mechanical structures, and discloses a main chord member, an underframe foundation section and a tower crane. The main chord member can reliably bear larger load, effectively avoid deformation and even damage, greatly improve the use safety of the tower crane, and simultaneously, the thickness of the pipe wall of the thin pipe section under smaller load is thinner, so that the weight and the cost of the structure can be effectively reduced on the premise of meeting the safety.
Description
Technical Field
The utility model belongs to the field of mechanical structures, and particularly relates to a main chord, a chassis foundation section and a tower crane.
Background
In the existing tower crane, the chassis foundation section comprises a bottom beam component, a foundation section arranged on the bottom beam component and an inclined strut, one end of the inclined strut is connected with the bottom beam component, the other end of the inclined strut is connected with a main chord member of the foundation section, in order to save cost and avoid overweight of structural weight, the main body of the main chord member is generally arranged into a tubular structure, the main chord member can be subjected to larger load at the joint of the main chord member and the inclined strut member in the working process of the tower crane, deformation and even damage are easy to occur, and potential safety hazards exist in the tower crane.
Disclosure of Invention
Aiming at the defects or the defects in the prior art, the utility model provides a main chord member, a chassis foundation section and a tower crane, and aims to solve the technical problem that the main chord member of the existing chassis foundation section is easy to deform or even break.
To achieve the above object, the present utility model provides a main chord including:
the main chord member body is of a tubular structure and comprises a thick pipe section and a thin pipe section which are connected, wherein the pipe wall thickness of the thick pipe section is larger than that of the thin pipe section; and
the inclined stay bar connecting lug seat is fixedly arranged on the peripheral wall of the thick pipe section and is used for being connected with the inclined stay bar.
Optionally, the thickness of the pipe wall of the thick pipe section is 2 times that of the thin pipe section.
Optionally, the main chord body further includes a first transition pipe section, a first end of the first transition pipe section is connected to the thick pipe section, a second end of the first transition pipe section is connected to the thin pipe section, and a pipe wall thickness of the first transition pipe section gradually decreases from the first end to the second end.
Optionally, the wall thickness of the first end of the first transition pipe section is consistent with the wall thickness of the thick pipe section, and the wall thickness of the second end of the first transition pipe section is consistent with the wall thickness of the thin pipe section.
Optionally, the outer peripheral surface of the thick tube section is flush with the outer peripheral surface of the thin tube section.
Optionally, the main chord member further includes a male connector and a female connector, wherein the chord member connection end of the male connector is connected with an end of the thick pipe section away from the thin pipe section, and the chord member connection end of the female connector is connected with an end of the thin pipe section away from the thick pipe section.
Optionally, the main chord body further includes a second transition pipe section, a first end of the second transition pipe section is connected with an end of the thick pipe section away from the thin pipe section, a second end of the second transition pipe section is connected with the chord connection end of the male connector, a pipe wall thickness of the second transition pipe section gradually decreases from the first end to the second end, a pipe wall thickness of the first end of the second transition pipe section is consistent with a pipe wall thickness of the thick pipe section, and a pipe wall thickness of the second end of the second transition pipe section is consistent with a pipe wall thickness of the chord connection end of the male connector.
Optionally, the main chord body includes a first steel pipe and a second steel pipe, the pipe wall thickness of the first steel pipe is greater than the pipe wall thickness of the second steel pipe, one end of the first steel pipe is welded with one end of the second steel pipe, the first steel pipe is formed into the thick pipe section, and the second steel pipe is formed into the thin pipe section.
The utility model also provides a chassis base section comprising:
a bottom beam assembly;
the foundation section comprises the main chord member, and one end of the thin pipe section, which is far away from the thick pipe section, is connected with the bottom beam assembly;
and one end of the diagonal brace is connected with the bottom beam assembly, and the other end of the diagonal brace is connected with the diagonal brace connecting lug seat.
The utility model also provides a tower crane, which comprises the underframe foundation section.
The main chord member comprises a thick pipe section and a thin pipe section which are connected, the pipe wall thickness of the thick pipe section is larger than that of the thin pipe section, the inclined stay rod connecting lug seat is fixedly arranged on the peripheral wall of the thick pipe section, when the main chord member is applied, the inclined stay rod is connected with the inclined stay rod connecting lug seat, the main chord member is mainly positioned on the thick pipe section under larger load in the working process of the tower crane, the thick pipe section can reliably bear larger load due to the thicker pipe wall thickness of the thick pipe section, deformation and even breakage are effectively avoided, the use safety of the tower crane is greatly improved, meanwhile, the pipe wall thickness of the thin pipe section subjected to smaller load is thinner, and the weight and the cost of the structure can be effectively reduced on the premise of meeting the safety.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic view of a primary chord in one embodiment of the utility model;
FIG. 2 is a schematic view of an axial cross-section of the main chord of FIG. 1;
fig. 3 is a schematic structural view of the chassis base section of fig. 1.
Reference numerals illustrate:
1. thick pipe section 6 male joint
2. Bao Guanduan 7 female connector
3. Inclined stay bar connecting lug seat 8 bottom beam assembly
4. First transition pipe section 9 diagonal brace
5. Base section of second transition pipe section 10
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.
In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the positional relationship of the various components with respect to one another in the vertical, vertical or gravitational directions.
The present utility model will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The present utility model first provides a primary chord.
In one embodiment, referring to fig. 1 and 2, the main chord member includes a main chord member body and an inclined strut connecting lug 3, wherein the main chord member body is in a tubular structure and includes a thick pipe section 1 and a thin pipe section 2 connected to each other, the pipe wall thickness of the thick pipe section 1 is greater than that of the thin pipe section 2, and the inclined strut connecting lug 3 is fixedly arranged on the peripheral wall of the thick pipe section 1 and is used for being connected with the inclined strut 9.
It can be appreciated that, in the main chord member of this embodiment, including thick pipe section 1 and thin pipe section 2 that link to each other, the pipe wall thickness of thick pipe section 1 is greater than the pipe wall thickness of thin pipe section 2, diagonal brace connecting lug seat 3 is fixed to be set up on the periphery wall of thick pipe section 1, so set up, when the main chord member is used, diagonal brace links to each other with diagonal brace connecting lug seat 3, in the in-process of tower crane work, the position that main chord member receives great load is mainly on thick pipe section 1, because the pipe wall thickness of thick pipe section 1 is thicker, can bear great load reliably, effectively avoid appearing the condition of deformation even breaking, the safety in utilization of tower crane has been improved greatly, simultaneously, the pipe wall thickness of thin pipe section 2 that receives less load is thinner, under the prerequisite that satisfies the security, can effectively reduce weight and the cost of structure.
Preferably, the wall thickness of the thick pipe section 1 is 2 times that of the thin pipe section 2, however, in other embodiments, the wall thickness of the thick pipe section 1 may be 1.5 times, 2.5 times, 3 times, etc. that of the thin pipe section 2, which is selected according to practical requirements.
In one embodiment, referring to fig. 2, the main chord body further includes a first transition section 4, a first end of the first transition section 4 is connected to the thick section 1, a second end of the first transition section 4 is connected to the thin section 2, and a wall thickness of the first transition section 4 gradually decreases from the first end to the second end.
It will be appreciated that by providing the first transition section 4 between the thick and thin sections 1, 2, stress concentrations at the junction between the thick and thin sections 1, 2 may be avoided and the structural strength of the main chord body may be further improved.
Further, the pipe wall thickness of the first end of the first transition pipe section 4 is consistent with the pipe wall thickness of the thick pipe section 1, the pipe wall thickness of the second end of the first transition pipe section 4 is consistent with the pipe wall thickness of the thin pipe section 2, and the arrangement can enable the transition between the thick pipe section 1 and the thin pipe section 2 to be smoother, and stress concentration can be further avoided.
In one embodiment, the outer peripheral surface of the thick pipe section 1 is flush with the outer peripheral surface of the thin pipe section 2, so that the flatness of the outer peripheral surface of the main chord body can be improved.
In one embodiment, referring to fig. 1 and 2, the main chord further includes a male connector 6 and a female connector 7, wherein the chord connection end of the male connector 6 is connected to the end of the thick pipe section 1 remote from the thin pipe section 2, and the chord connection end of the female connector 7 is connected to the end of the thin pipe section 2 remote from the thick pipe section 1.
In practice, the main chord is connected to the chassis assembly by a female connector 7, and a male connector 6 is located above for connection to a standard or other arm segment.
The chord connection end of the male connector 6 and the chord connection end of the female connector 7 are both of conventional structures, that is, the connection ends of the male connector 6 and the female connector 7 with the main chord body are tubular structures adapted to the main chord body.
In one embodiment, referring to fig. 2, the main chord body further includes a second transition pipe section 5, where a first end of the second transition pipe section 5 is connected to an end of the thick pipe section 1 away from the thin pipe section 2, a second end of the second transition pipe section 5 is connected to the chord connection end of the male connector 6, the pipe wall thickness of the second transition pipe section 5 gradually decreases from the first end to the second end, the pipe wall thickness of the first end of the second transition pipe section 5 is consistent with the pipe wall thickness of the thick pipe section 1, and the pipe wall thickness of the second end of the second transition pipe section 5 is consistent with the pipe wall thickness of the chord connection end of the male connector 6.
It will be appreciated that by providing the second transition section 5 between the chord connection end of the male connector 6 and the thick section 1, stress concentrations at the connection between the chord connection end of the male connector 6 and the thick section 1 can be avoided and the structural strength of the main chord body can be further improved.
In one embodiment, the main chord body includes a first steel pipe and a second steel pipe, the first steel pipe having a pipe wall thickness greater than that of the second steel pipe, one end of the first steel pipe being welded to one end of the second steel pipe, the first steel pipe being formed into a thick pipe section 1, and the second steel pipe being formed into a thin pipe section 2.
In other embodiments, the main chord body may also be integrally formed directly from one steel tube, i.e., the thick tube section 1 and the thin tube section 2 may be of an integrally formed construction.
The utility model also provides a foundation section of the chassis.
In one embodiment, referring to fig. 3, the chassis base section includes a bottom beam assembly 8, a base section 10, and an inclined strut 9, where the base section 10 includes the main chord described above, one end of the thin pipe section 2 away from the thick pipe section 1 is connected to the bottom beam assembly 8, one end of the inclined strut 9 is connected to the bottom beam assembly 8, and the other end is connected to the inclined strut connecting ear 3.
It will be appreciated that by using the primary chords of the foundation section 10 as described above, the structural strength and safety of use of the chassis foundation section can be effectively improved.
The utility model also provides a tower crane, which comprises the underframe foundation section.
It can be appreciated that the structural strength and the use safety of the bottom tower crane can be effectively improved by adopting the underframe foundation section of the tower crane.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (10)
1. A primary chord, the primary chord comprising:
the main chord body is of a tubular structure and comprises a thick pipe section (1) and a thin pipe section (2) which are connected, wherein the pipe wall thickness of the thick pipe section (1) is larger than that of the Bao Guanduan (2); and
the inclined stay bar connecting lug seat (3), the inclined stay bar connecting lug seat (3) is fixedly arranged on the peripheral wall of the thick pipe section (1) and is used for being connected with the inclined stay bar (9).
2. The main chord according to claim 1, wherein the wall thickness of the thick tube section (1) is 2 times the wall thickness of the Bao Guanduan (2).
3. The main chord according to claim 1, wherein the main chord body further comprises a first transition section (4), a first end of the first transition section (4) being connected to the thick section (1), a second end of the first transition section (4) being connected to the Bao Guanduan (2), the wall thickness of the first transition section (4) being gradually reduced from the first end to the second end.
4. A primary chord according to claim 3, characterised in that the wall thickness of the first end of the first transition section (4) corresponds to the wall thickness of the thick section (1) and that the wall thickness of the second end of the first transition section (4) corresponds to the wall thickness of the Bao Guanduan (2).
5. The main chord according to claim 1, wherein the outer circumferential surface of the thick tube section (1) is flush with the outer circumferential surface of the Bao Guanduan (2).
6. The main chord according to claim 1, further comprising a male connector (6) and a female connector (7), wherein the chord connection end of the male connector (6) is connected to the end of the thick pipe section (1) remote from the Bao Guanduan (2), and wherein the chord connection end of the female connector (7) is connected to the end of the Bao Guanduan (2) remote from the thick pipe section (1).
7. The primary chord of claim 6, wherein the primary chord body further comprises a second transition section (5), a first end of the second transition section (5) being connected to an end of the thick section (1) remote from the Bao Guanduan (2), a second end of the second transition section (5) being connected to the chord connection end of the male connector (6), a wall thickness of the second transition section (5) tapering from the first end to the second end, a wall thickness of the first end of the second transition section (5) conforming to a wall thickness of the thick section (1), a wall thickness of the second end of the second transition section (5) conforming to a wall thickness of the chord connection end of the male connector (6).
8. The main chord of claim 1, wherein the main chord body comprises a first steel pipe and a second steel pipe, the first steel pipe having a pipe wall thickness greater than a pipe wall thickness of the second steel pipe, one end of the first steel pipe being welded to one end of the second steel pipe, the first steel pipe being formed as the thick pipe section (1), the second steel pipe being formed as the Bao Guanduan (2).
9. A chassis base section, the chassis base section comprising:
a bottom beam assembly (8);
-a foundation section (10) comprising a main chord according to any of claims 1 to 8, the end of the Bao Guanduan (2) remote from the thick tube section (1) being connected to the bottom beam assembly (8);
and one end of the diagonal brace (9) is connected with the bottom beam assembly (8), and the other end of the diagonal brace is connected with the diagonal brace connecting lug seat (3).
10. A tower crane, characterized in that it comprises a undercarriage base section according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321125101.2U CN219585709U (en) | 2023-05-11 | 2023-05-11 | Main chord, underframe foundation section and tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321125101.2U CN219585709U (en) | 2023-05-11 | 2023-05-11 | Main chord, underframe foundation section and tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219585709U true CN219585709U (en) | 2023-08-25 |
Family
ID=87688967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321125101.2U Active CN219585709U (en) | 2023-05-11 | 2023-05-11 | Main chord, underframe foundation section and tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219585709U (en) |
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2023
- 2023-05-11 CN CN202321125101.2U patent/CN219585709U/en active Active
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