CN212769543U - Cold-formed steel for enhancing rigidity of boom section chord member of tower crane boom - Google Patents
Cold-formed steel for enhancing rigidity of boom section chord member of tower crane boom Download PDFInfo
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- CN212769543U CN212769543U CN202021387968.1U CN202021387968U CN212769543U CN 212769543 U CN212769543 U CN 212769543U CN 202021387968 U CN202021387968 U CN 202021387968U CN 212769543 U CN212769543 U CN 212769543U
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- steel
- flange plate
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- tower crane
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 96
- 239000010959 steel Substances 0.000 title claims abstract description 96
- 230000002708 enhancing effect Effects 0.000 title claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model discloses a cold-formed steel of reinforcing tower machine jib boom chord member rigidity, including square tubular steel, all be provided with the concave part on the top surface of square tubular steel and the bottom surface, square tubular steel both ends are provided with respectively connects public head and female head, female head includes first flange plate in the connection, be provided with the first rectangular pipe chock plug that stretches into square tubular steel on the first flange plate surface, be provided with the perforation on the first flange plate that first rectangular pipe chock plug inner chamber corresponds, public head of connection includes the second flange plate, be provided with respectively on two surfaces of the second flange plate and stretch into the second rectangular pipe chock plug in the perforation and stretch into the third rectangular pipe chock plug inside square tubular steel; and the first flange plate and the second flange plate are welded and fixed with the square pipe steel. The utility model discloses can effectively improve the structural strength and the joint strength of upper chord, the equipment is convenient reliable.
Description
Technical Field
The utility model relates to a cold-formed steel preparation technical field, concretely relates to reinforcing tower crane jib loading boom chord member rigid cold-formed steel.
Background
Tower cranes are generally referred to as tower cranes. The tower crane is the most common hoisting equipment on the construction site, also called tower crane, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction by the extension (height) of one section and one section (called standard section for short).
The tower crane is an indispensable device on a construction site, the tower crane is increasingly well known in the process of building high-rise buildings, and the metal structure of the tower crane is gradually known by people, wherein the metal structure comprises a crane boom, a front arm pull rod, a tower cap, a rear arm pull rod, a balance arm, a rotary tower body, an upper rotary table, a lower rotary table, a jacking sleeve frame, a tower body, a bottom frame, a foundation and the like.
Wherein, the jib loading boom is the basis that hoist and mount in-process level was transported, and the jib loading boom generally comprises multisection connection, generally has an upper chord, two lower chords, a plurality of web member welding and forms, no matter upper chord or lower chord in the connection of two adjacent sections structures, all adopt the round pin axle to fix, but the upper chord is main part of being pressed, and the structure of round pin hub connection makes the upper chord atress unstable to during the equipment, the part counterpoint degree of difficulty of round pin axle lock solid is big, influences the availability factor.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a reinforcing tower crane jib loading boom chord member rigid cold-formed steel, structural strength and joint strength that can effectively improve the upper chord member, the equipment is convenient reliable.
In order to solve the technical problem, the utility model provides a cold-formed steel of reinforcing tower crane boom arm section chord member rigidity, including square tubular steel, all be provided with the concave part on the top surface of square tubular steel and the bottom surface, square tubular steel both ends are provided with respectively connects public head and female head, female head includes first flange plate in the connection, be provided with the first rectangular pipe chock plug that stretches into square tubular steel on the first flange plate surface, be provided with the perforation on the first flange plate that first rectangular pipe chock plug inner chamber corresponds, public head of the connection includes the second flange plate, be provided with the second rectangular pipe chock plug that stretches into the perforation and the third rectangular pipe chock plug that stretches into the square tubular steel on two surfaces of second flange plate respectively;
and the first flange plate and the second flange plate are welded and fixed with the square pipe steel.
Further, a plurality of triangular reinforcing plates are arranged between the surface of the first flange plate and the surface of the square pipe steel and between the surface of the second flange plate and the surface of the square pipe steel.
Further, during the equipment, square pipe steel, first rectangular pipe chock plug and the second rectangular pipe chock plug that corresponds are fixed through first bolt assembly, square pipe steel and third rectangular pipe chock plug are fixed through second bolt assembly.
Further, during the equipment, all be provided with the welding trompil on the square tubular steel that first rectangle pipe chock plug corresponds and the square tubular steel that third rectangle pipe chock plug corresponds, pass through welded fastening between first rectangle pipe chock plug and the square tubular steel and between third rectangle pipe chock plug and the square tubular steel.
Furthermore, a positioning screw rod is arranged on the bottom surface of the square pipe steel.
Furthermore, the positioning screw rod is arranged in a concave part of the bottom surface of the square pipe steel, the positioning screw rod is provided with a filling reinforcing block, and the positioning screw rod and the filling reinforcing block are of an integrated structure.
Further, one end of the positioning screw penetrates through the square pipe steel to the top of the square pipe steel and is fixed with the nut.
Further, a profiling reinforcing plate is arranged on the top of the square pipe steel.
The utility model has the advantages that:
1. the upper chord is the clod wash steel pipe, save material to two surfaces have the concave part, can improve structural strength greatly, and the wall thickness effectively reduces simultaneously, thereby reduces the weight of clod wash steel pipe, realizes lightweight design effect.
2. Connect public head and connect just can carry out fixed connection to two upper limit poles after female first cooperation is pegged graft, connect public head and connect female head and have effective guide effect to make two upper limit pole docks have the positioning action, convenient operation improves the packaging efficiency.
3. First flange board and second flange board all with square tubular steel welding, effectively guarantee joint strength to first flange board and second flange board all have the rectangle structure that stretches into in the square tubular steel, when bearing the shear force, effectively share, guarantee welded connection's validity.
4. When the assembling, the first flange plate and the second flange plate are mutually locked by screws, so that the combination degree is high, the stability is good, and the stress can be good.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the female connection head of the present invention;
fig. 3 is a schematic view of the connection male of the present invention;
fig. 4 is a schematic view of the present invention in docking;
fig. 5 is a partial schematic view of the positioning screw of the present invention.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1 to 3, an embodiment of the cold-formed steel for enhancing the rigidity of the boom chord member of the crane boom of the tower crane of the present invention comprises a square pipe steel 1, wherein concave parts 2 are respectively arranged on the top surface and the bottom surface of the square pipe steel, and the concave parts are arranged towards the top and the bottom, so that the section steel conforms to the use in the stress direction in the use process, the structure of the concave parts can greatly improve the structural strength, and the wall thickness is effectively reduced, thereby reducing the weight of the cold-formed steel pipe;
the two ends of the square pipe steel are respectively provided with a connecting male head 3 and a connecting female head 4, the connecting female head comprises a first flange plate 5, one surface of the first flange plate is provided with a first rectangular pipe plug head 6 extending into the square pipe steel, a through hole 7 is formed in the first flange plate corresponding to the inner cavity of the first rectangular pipe plug head, the connecting male head comprises a second flange plate 8, and the two surfaces of the second flange plate are respectively provided with a second rectangular pipe plug head 9 extending into the through hole and a third rectangular pipe plug head 10 extending into the square pipe steel; during assembly, the female connecting head is plugged into the end part of the square pipe steel through the first rectangular pipe plug head, is abutted against the end face of the square pipe steel through the first flange plate and is fixed together in a welding mode; the connecting male head is plugged into the end part of the square pipe steel through a third rectangular pipe plug head, is abutted against the end surface of the square pipe steel through a second flange plate, and is fixed together through a welding mode; thereby form overall structure, connect public first second rectangular pipe chock plug when the butt joint and fill in first rectangular pipe chock plug through the perforation inside, mainly play good guide effect for first flange board and the second flange board that corresponds can effectively align, and first flange board and the second flange board that corresponds pass through third bolt assembly fixedly.
The whole structure adopts welding and locking modes, and is in hard connection, so that the whole strength is higher, the stress transmission effect is better, and the structure is stable and reliable.
In order to further improve the connection strength, a plurality of triangular reinforcing plates 11 are arranged between the surface of the first flange plate and the surface of the square pipe steel and between the surface of the second flange plate and the surface of the square pipe steel, so that the rigidity and the connection effect of the connection part are ensured. And still all be provided with welding trompil 14 on the square tubular steel that first rectangular pipe chock plug corresponds and the square tubular steel that third rectangular pipe chock plug corresponds, between first rectangular pipe chock plug and the square tubular steel and through welded fastening between third rectangular pipe chock plug and the square tubular steel, first rectangular pipe chock plug after the welding, third rectangular pipe chock plug and square tubular steel combine as an organic whole, the atress transmission is direct, and effectual carry out the tip in square tubular steel inside and strengthen, guarantee first flange board, second flange board welding position's intensity, thereby can reduce the preparation requirement.
Referring to fig. 4, in an embodiment, during assembly, the square pipe steel, the first rectangular pipe plug head and the corresponding second rectangular pipe plug head are fixed through the first bolt assembly 12, the square pipe steel and the third rectangular pipe plug head are fixed through the second bolt assembly 13, after the square pipe steel and the third rectangular pipe plug head are fixed through the first bolt assembly and the second bolt assembly, the connection strength can be guaranteed, quality problems exist in welding, and when cracking and the like occur in the using process, the first bolt assembly and the second bolt assembly can prevent the male head from being directly separated from the female head, so that the connection safety is further guaranteed.
Referring to fig. 5, in an embodiment, a positioning screw 15 is arranged on the bottom surface of the square pipe steel, the positioning screw is used for positioning before welding the web member, the end of the web member is punched, then the web member is sleeved on the positioning screw for positioning, after positioning, welding and fixing are performed, operation convenience and welding position accuracy are guaranteed, and the use of a positioning tool is reduced. In the concave part of positioning screw setting in square tubular steel bottom surface, the last reinforcing block 16 that is provided with of positioning screw, positioning screw and the reinforcing block structure as an organic whole of filling, the reinforcing block of filling can promote the butt position of web member and square tubular steel bottom surface concave part to the assurance has more area of contact, and the structure is also more firm after the welding, avoids the design influence firm in connection degree of square tubular steel bottom surface concave part.
In order to facilitate installation of the positioning screw, one end of the positioning screw penetrates through the square pipe steel to the top of the square pipe steel and is fixed with the nut 17. And the top of the square pipe steel is provided with a profiling reinforcing plate 18, and the profiling reinforcing plate is welded on the top of the square pipe steel, so that the structure is stable and reliable when the square pipe steel is stressed.
The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (8)
1. The cold-formed steel for enhancing the rigidity of the boom section chord member of the tower crane boom is characterized by comprising square pipe steel, wherein concave parts are arranged on the top surface and the bottom surface of the square pipe steel, a connecting male head and a connecting female head are respectively arranged at two ends of the square pipe steel, the connecting female head comprises a first flange plate, a first rectangular pipe plug head extending into the square pipe steel is arranged on one surface of the first flange plate, a through hole is formed in the first flange plate corresponding to the inner cavity of the first rectangular pipe plug head, the connecting male head comprises a second flange plate, and a second rectangular pipe plug head extending into the through hole and a third rectangular pipe plug head extending into the square pipe steel are respectively arranged on two surfaces of the second flange plate;
the first flange plate and the second flange plate are welded and fixed with the square pipe steel;
during assembly, the first flange plate and the corresponding second flange plate are fixed through the third bolt assembly.
2. The cold-formed steel bar for enhancing the rigidity of the boom sections and chords of the tower crane boom according to claim 1, wherein a plurality of triangular reinforcing plates are arranged between the surface of the first flange plate and the surface of the square tube steel and between the surface of the second flange plate and the surface of the square tube steel.
3. The cold-formed steel bar for enhancing the rigidity of the boom section chord of the tower crane boom according to claim 1, wherein when assembled, the square tube steel, the first rectangular tube plug head and the corresponding second rectangular tube plug head are fixed through a first bolt assembly, the square tube steel and the third rectangular tube plug head are fixed through a second bolt assembly, and the first flange plate and the corresponding second flange plate are fixed through a third bolt assembly.
4. The cold-formed steel bar for enhancing the rigidity of the boom section chord of the tower crane boom according to claim 1, wherein during assembly, welding openings are arranged on the square tube steel corresponding to the first rectangular tube chock plug and the square tube steel corresponding to the third rectangular tube chock plug, and the first rectangular tube chock plug and the square tube steel and the third rectangular tube chock plug and the square tube steel are fixed by welding.
5. The cold-formed steel bar for enhancing the rigidity of the boom sections and chords of the tower crane boom according to claim 1, wherein a positioning screw rod is arranged on the bottom surface of the square tube steel bar.
6. The cold-formed steel bar for enhancing the rigidity of the boom section chord of the tower crane boom according to claim 5, wherein the positioning screw is arranged in a concave part on the bottom surface of the square tube steel, the positioning screw is provided with a filling reinforcing block, and the positioning screw and the filling reinforcing block are of an integral structure.
7. The cold-formed steel bar for enhancing the rigidity of the boom sections and chords of a tower crane boom of claim 6, wherein one end of the positioning screw rod penetrates through the square tube steel to the top of the square tube steel and is fixed with a nut.
8. The cold-formed steel for enhancing the rigidity of the boom sections and chords of the tower crane boom according to claim 1, wherein a profiling reinforcing plate is arranged on the top of the square tube steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021387968.1U CN212769543U (en) | 2020-07-15 | 2020-07-15 | Cold-formed steel for enhancing rigidity of boom section chord member of tower crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021387968.1U CN212769543U (en) | 2020-07-15 | 2020-07-15 | Cold-formed steel for enhancing rigidity of boom section chord member of tower crane boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212769543U true CN212769543U (en) | 2021-03-23 |
Family
ID=75077698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021387968.1U Expired - Fee Related CN212769543U (en) | 2020-07-15 | 2020-07-15 | Cold-formed steel for enhancing rigidity of boom section chord member of tower crane boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212769543U (en) |
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2020
- 2020-07-15 CN CN202021387968.1U patent/CN212769543U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210323 |