CN219044807U - Standard knot and tower crane - Google Patents
Standard knot and tower crane Download PDFInfo
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- CN219044807U CN219044807U CN202223355385.2U CN202223355385U CN219044807U CN 219044807 U CN219044807 U CN 219044807U CN 202223355385 U CN202223355385 U CN 202223355385U CN 219044807 U CN219044807 U CN 219044807U
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- web member
- straight web
- standard
- standard knot
- channel
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- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 29
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Classifications
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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
Abstract
The utility model belongs to the field of hoisting machinery, and discloses a standard knot and a tower crane, wherein the standard knot comprises a plurality of main chords and a plurality of straight web members, the plurality of main chords are sequentially arranged at intervals along the circumferential direction of the standard knot, two ends of each straight web member are respectively welded on the circumferential walls of two adjacent main chords, and each straight web member comprises a non-enclosing straight web member with a non-enclosing cross section outline. The standard section adopts the non-enclosing straight web member and the main chord member to be welded with each other, so that the welding area is relatively reduced, the welding difficulty is reduced, the welding efficiency is improved, and the labor and time cost are reduced, therefore, the welding method is suitable for mass production.
Description
Technical Field
The utility model relates to the technical field of hoisting machinery, in particular to a standard knot and a tower crane.
Background
The standard section is one of important parts of the tower crane, and mainly comprises chord members and web members, and the plurality of standard sections are sequentially connected in the height direction to form a tower-shaped structure. The existing standard joints can be divided into a fishtail plate type standard joint, a square tenon type standard joint, a bolt type standard joint and the like, wherein the bottom ends of the fishtail plate type standard joint and the square tenon type standard joint are not provided with straight web members, so that the standard joints are easy to deform after being welded, and fire calibrating procedures are needed to be added after welding so as to improve the structural strength, but the mode clearly increases labor and time cost, and mass production is not facilitated.
In addition, although the bottom of the bolt type standard joint is provided with the straight web member, the straight web member adopted at present is square, so that the welding area of the straight web member is larger, the welding difficulty is high, and the mass production is also not facilitated.
Disclosure of Invention
In order to overcome at least one of the defects or shortcomings in the prior art, the utility model provides a standard knot, and the non-enclosing straight web members and the main chord members are welded with each other, so that the welding area is relatively reduced, the welding difficulty is reduced, the purposes of improving the welding efficiency, reducing the labor and time cost and the like are achieved, and the standard knot is suitable for mass production.
To achieve the above object, according to a first aspect of the present utility model, there is provided a standard knot, which includes a plurality of main chords and a plurality of straight web members, wherein the plurality of main chords are sequentially arranged at intervals along a circumferential direction of the standard knot, two ends of each straight web member are respectively welded to circumferential walls of two adjacent main chords, and the straight web members include non-enclosed straight web members having non-enclosed cross section profiles.
Optionally, male connectors and female connectors are respectively formed at two ends of the main chord member, and two ends of the non-enclosed straight web member are respectively welded to peripheral walls of two adjacent female connectors.
Optionally, the non-enclosed web member is formed as a channel-shaped web member having a channel-shaped cross-sectional profile.
Optionally, the rod groove of the groove-shaped straight web member is provided with an upward opening and is formed as a pin placement groove suitable for placing a standard joint pin.
Optionally, the main chord member is formed with a plurality of standard knot pin holes respectively used for enabling a plurality of standard knot pin shafts to penetrate and connect, part of the lower parts of the standard knot pin holes are adjacently provided with the groove-shaped straight web members, and the orifices of the standard knot pin holes are arranged towards the pin shaft placing groove.
Optionally, the pin shaft placing groove is arranged in an outward inclined extending mode along two groove side walls in the groove width direction.
Optionally, the groove side wall of the pin shaft placing groove along the groove width direction is formed into a limiting side wall for limiting the rolling of the standard-section pin shaft in the pin shaft placing groove.
Optionally, the groove-shaped straight web member is formed by welding two angle steels; alternatively, the channel-shaped straight web member is made of channel steel.
Optionally, the channel-shaped straight web member is formed as a stamped straight web member; alternatively, the channel-shaped web members are formed as plate tailor welded web members.
In a second aspect the utility model provides a tower crane comprising a standard knot as described above.
Through the technical scheme, the standard knot is formed by welding the main chord member and the straight web member, so that the integral structural strength of the standard knot can be improved through the straight web member, and deformation is effectively avoided. In addition, compared with the prior art, the welding area can be reduced by adopting the non-enclosing straight web member, so that the welding difficulty is reduced, the welding efficiency is improved, the labor and time cost are reduced, and the mass production of standard knots is facilitated.
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 illustration of a standard knot in an embodiment of the utility model;
FIG. 2 is a bottom view of the standard knot of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
fig. 4 is a schematic view of a channel-shaped straight web member having a different cross-sectional shape.
Reference numerals illustrate:
1. main chord member 2 straight web member
3. Standard joint pin shaft
11. Standard joint pin hole 12 male connector
13. Female joint 21 groove-shaped straight web member
Detailed Description
The following describes the detailed implementation of the embodiments of the present utility model 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.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the embodiments of the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" or "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 utility model will be described in detail below with reference to the drawings in connection with exemplary embodiments.
Referring to fig. 1 to 4, a first exemplary embodiment of the present utility model provides a standard knot comprising a plurality of main chords 1 and a plurality of straight web members 2, the plurality of main chords 1 being arranged at intervals in sequence along the circumference of the standard knot, both ends of each straight web member 2 being welded to the circumferential walls of two adjacent main chords 1, respectively, the straight web members 2 comprising non-enclosed straight web members having non-enclosed cross-sectional profiles.
Through the arrangement, the standard energy-saving device of the embodiment can be formed by welding the main chords 1 and the straight web members 2, as shown in fig. 2, the four straight web members 2 can be sequentially connected and arranged along the circumference of the standard section, wherein two ends of each straight web member 2 can be respectively welded on the circumferential walls of two adjacent main chords 1, so that the four straight web members 2 are enclosed into a rectangular straight web member assembly through the four main chords 1, the structural strength of the standard section can be improved, and deformation is effectively avoided. In addition, compared with the prior art, the non-enclosing straight web member with the cross section outline being in a non-enclosing shape is adopted, and the welding area between the two ends of the straight web member and the main chord member 1 can be reduced, so that the welding difficulty can be reduced, the welding efficiency can be improved, the labor and time cost can be reduced, and the mass production of the standard section of the embodiment can be facilitated.
In one embodiment, referring to fig. 1, male connectors 12 and female connectors 13 are respectively formed at two ends of the main chord member 1, and when a plurality of standard knots are stacked in sequence, for any two adjacent standard knots, the male connector 12 of one standard knot can be matched and inserted with the female connector 13 of the other standard knot to perform assembly. At this time, in order to avoid interference between the male connector 12 and the female connector 13, both ends of the non-enclosed web member are welded to the peripheral walls of the adjacent two female connectors 13, respectively.
In general, after the male connector 12 and the female connector 13 are matched and inserted, the male connector 12 and the female connector 13 need to be connected and locked through the standard joint pin shaft 3, so that the peripheral walls of the male connector 12 and the female connector 13 are respectively provided with a standard joint pin hole 11. The area of the peripheral wall region between the end of the female joint 13 and the standard joint pin hole 11 is small, and if an existing square tubular straight web member is welded to the peripheral wall region, it is difficult to weld the peripheral wall region due to the large cross-sectional profile of the square tubular straight web member, or the welding difficulty is large. By adopting the non-enclosing straight web member, the problem can be effectively solved, the welding efficiency is improved, and the welding quality is ensured.
In addition, when the non-enclosed straight web member and the main chord member 1 are welded, the non-enclosed straight web member can play a role in supporting the main chord member 1 without adding a post-welding fire calibrating process, so that the overall strength of the standard knot can be enhanced.
In one embodiment, the non-occluding straight web member is formed as a channel-shaped straight web member 21 having a channel-shaped cross-sectional profile. Referring to fig. 3 and 4, the cross-sectional profile of the channel-shaped straight web member 21 is in a channel shape, and compared with a square straight web member with equal width, the channel-shaped cross-sectional area of the channel-shaped straight web member 21 is smaller than the square cross-sectional area of the square straight web member, and because the welding area is proportional to the cross-sectional area of the straight web member, the welding area between the channel-shaped straight web member 21 and the main chord member 1 can be effectively reduced, so that the welding strength is reduced, and the welding efficiency is improved. In addition, the groove-shaped straight web member 21 can have better structural strength, thereby meeting the requirement of supporting the main chord member 1.
In one embodiment, the rod groove of the channel-shaped straight web member 21 is provided open upward and is formed as a pin placement groove adapted to receive a standard joint pin 3. Specifically, the standard joint pin shaft 3 is used for fixing two adjacent standard joints, and the groove width of the pin shaft placing groove is at least larger than the maximum diameter of the standard joint pin shaft 3, so that the standard joint pin shaft 3 can be placed in the pin shaft placing groove in parallel along the length direction of the groove-shaped straight web member 21. Therefore, before the standard joints are fixedly installed, the standard joint pin shaft 3 can be placed in the pin shaft placing groove, so that the standard joint pin shaft 3 can synchronously displace along with the corresponding standard joint, and for example, when the standard joint is required to be carried, carrying operation on the standard joint pin shaft 3 can be saved.
In one embodiment, the main chord member 1 is formed with a plurality of standard joint pin holes 11 for respectively penetrating the standard joint pin shafts 3, a groove-shaped straight web member 21 is adjacently arranged below part of the standard joint pin holes 11, and the orifices of the standard joint pin holes 11 are arranged towards the pin shaft placing grooves, namely, the hole axis direction of the standard joint pin holes 11 is consistent with the length direction of the pin shaft placing grooves.
Through the arrangement, when a plurality of standard knots are fixedly installed, two adjacent standard knots can be connected in an aligned mode through the main chord member 1, so that two standard knot pin holes 11 of the two connected main chord members 1 are aligned coaxially, and at the moment, the standard knot pin shaft 3 can be connected with the two aligned standard knot pin holes 11 in a penetrating mode, so that the two connected main chord members 1 are fixed, and the two adjacent standard knots are fixedly connected with each other. In addition, when dismantling a plurality of standard festival, need to knock out standard festival round pin axle 3 from two standard festival pinholes 11 to eliminate spacing between two adjacent standard festival, because the drill way of standard festival pinhole 11 is towards the round pin axle standing groove, make above-mentioned standard festival round pin axle 3 that is knocked out fall into the round pin axle standing groove along hole axis direction, thereby can save the part that is used for answering standard festival round pin axle 3, the operation of being convenient for is favorable to reducing use cost.
In one embodiment, the two groove side walls of the pin shaft placing groove along the groove width direction are outwards and obliquely extended, so that the opening degree of the notch of the pin shaft placing groove is increased, and the difficulty in taking the standard-section pin shaft 3 from the groove can be reduced. In addition, because two groove side walls of the pin shaft placing groove are outwards inclined to extend, the notch of the pin shaft placing groove is provided with a larger interception area, and therefore the standard-section pin shaft 3 can effectively fall into the pin shaft placing groove when being knocked out, the phenomenon that the standard-section pin shaft 3 falls out of the pin shaft placing groove due to the force control problem is avoided, and the disassembly efficiency can be improved.
In one embodiment, the groove side walls of the pin placement groove along the groove width direction are formed as limiting side walls for limiting the rolling of the standard joint pin 3 in the pin placement groove. Therefore, the rolling range of the standard-section pin shaft 3 in the pin shaft placing groove can be reduced through the limiting side wall of the pin shaft placing groove, so that the standard-section pin shaft 3 can be effectively limited to roll, and the standard-section pin shaft 3 is prevented from falling out of the pin shaft placing groove particularly in the scene of carrying the standard section.
In addition, when the groove side wall of the pin shaft placement groove in the groove width direction is formed as the limit side wall, the groove-shaped straight web member 21 may be formed in different sectional shapes according to the connection relationship of the limit side wall and the groove bottom wall, for example, a right angle groove with a chamfer in fig. 4 (a) may be formed, at which time the groove-shaped straight web member 21 may be formed by press forming, that is, as a press formed straight web member, or a right angle groove without a chamfer in fig. 4 (b) may be formed, at which time the groove-shaped straight web member 21 may be formed by welding a plurality of plate members, that is, as a plate member welding straight web member.
In one embodiment, referring to fig. 4, the channel-shaped straight web member 21 is provided by two angle steel tailor-welded (as shown in fig. 4 (c)), or the channel-shaped straight web member 21 is formed as a channel steel (as shown in fig. 4 (d)). Since angle steel or channel steel is widely used in the processing of steel structures, the material for preparing the groove-shaped straight web member 21 can be angle steel or channel steel, which is beneficial to reducing the production cost and is suitable for mass production.
A second exemplary embodiment of the present utility model provides a tower crane comprising the standard knot described above. Obviously, the tower crane has all technical effects brought by the standard section, so that repeated description is omitted.
The foregoing details of the optional implementation of the embodiment of the present utility model have been described in detail with reference to the accompanying drawings, but the embodiment of the present utility model is not limited to the specific details of the foregoing implementation, and various simple modifications may be made to the technical solution of the embodiment of the present utility model within the scope of the technical concept of the embodiment of the present utility model, and these simple modifications all fall within the protection scope of the embodiment of the present utility model.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
In addition, any combination of various embodiments of the present utility model may be performed, so long as the concept of the embodiments of the present utility model is not violated, and the disclosure of the embodiments of the present utility model should also be considered.
Claims (10)
1. The standard knot is characterized by comprising a plurality of main chords (1) and a plurality of straight web members (2), wherein the main chords (1) are sequentially arranged at intervals along the circumference of the standard knot, two ends of each straight web member (2) are respectively welded to the peripheral walls of two adjacent main chords (1), and each straight web member (2) comprises a non-enclosing straight web member with a non-enclosing cross section profile.
2. Standard knot according to claim 1, characterized in that the two ends of the main chord member (1) are respectively formed with a male joint (12) and a female joint (13), and the two ends of the non-enclosing straight web member are respectively welded to the peripheral walls of two adjacent female joints (13).
3. A standard knot according to claim 1, characterized in that the non-enclosing straight web member is formed as a channel-shaped straight web member (21) with a channel-shaped cross-sectional profile.
4. A standard joint according to claim 3, characterized in that the rod groove of the channel-shaped straight web member (21) is arranged open upwards and formed as a pin placement groove adapted to place a standard joint pin (3).
5. Standard knot according to claim 4, characterized in that the main chord member (1) is formed with a plurality of standard knot pin holes (11) for respectively connecting a plurality of standard knot pin shafts (3) therethrough, that part of the standard knot pin holes (11) are provided adjacently below the channel-shaped straight web members (21) and that the apertures of the standard knot pin holes (11) are arranged towards the pin shaft placement groove.
6. The standard knot of claim 4, wherein the pin placement groove is provided with two groove side walls extending obliquely outwards along the groove width direction.
7. The standard knot according to claim 4, characterized in that the groove side walls of the pin placement groove in the groove width direction are formed as limiting side walls for limiting the rolling of the standard knot pin (3) in the pin placement groove.
8. A standard joint according to claim 3, characterized in that the channel-shaped straight web member (21) is arranged to be splice welded by means of two angle steels; alternatively, the channel-shaped straight web member (21) is made of channel steel.
9. -standard joint according to claim 3, characterised in that the channel-shaped straight web member (21) is formed as a stamped straight web member; alternatively, the channel-shaped web member (21) is formed as a plate tailor welded web member.
10. A tower crane, characterized in that it comprises a standard knot according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223355385.2U CN219044807U (en) | 2022-12-14 | 2022-12-14 | Standard knot and tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223355385.2U CN219044807U (en) | 2022-12-14 | 2022-12-14 | Standard knot and tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219044807U true CN219044807U (en) | 2023-05-19 |
Family
ID=86318102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223355385.2U Active CN219044807U (en) | 2022-12-14 | 2022-12-14 | Standard knot and tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219044807U (en) |
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2022
- 2022-12-14 CN CN202223355385.2U patent/CN219044807U/en active Active
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