CN220317201U - Standard knot for large-scale flat-head tower crane - Google Patents

Standard knot for large-scale flat-head tower crane Download PDF

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Publication number
CN220317201U
CN220317201U CN202321763562.2U CN202321763562U CN220317201U CN 220317201 U CN220317201 U CN 220317201U CN 202321763562 U CN202321763562 U CN 202321763562U CN 220317201 U CN220317201 U CN 220317201U
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China
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rod
diagonal
main
web member
main rod
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CN202321763562.2U
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Chinese (zh)
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才冰
赵欣
白晶
王明鑫
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Fushun Yongmao Construction Machinery Co ltd
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Fushun Yongmao Construction Machinery Co ltd
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Abstract

The application discloses large-scale flat-head tower machine standard festival belongs to hoisting machinery technical field, including vertical main chord member, horizontal pole, horizontal web member, inclined web member and space web member, this application scheme considers that the standard festival needs extra installation cat ladder, and the cat ladder needs to be fixed in the space web member, space web member constitutes space triangle with main chord member, horizontal pole, this is by itself strengthened the stability of standard festival, the space web member should not only be as the installation carrier of cat ladder, it rationally blends into the whole standard festival and is favorable to promoting rigidity and torque capacity, consider this application and then distribute other two main chord members more with the main chord member welding point at space web member both ends, distribute the welding point of every main chord member more scientifically, make its atress more balanced, the welding position is difficult for the fracture.

Description

Standard knot for large-scale flat-head tower crane
Technical Field
The application belongs to the technical field of hoisting machinery, and particularly relates to a standard knot for a large-sized flat-head tower crane.
Background
At present, most of standard knots in the market adopt a space truss structure formed by welding sectional materials, and the space truss structure consists of a main chord member, a web member, a cat ladder and a platform; the web members are arranged in a 'along water', namely, the web members are arranged in the same mode, the number of connecting points of each main chord member and each web member is the same, if the structure is only used for the purpose, the integral strength and torsional rigidity are very good, but because the ladder is built, an additional rod is required to be welded between two main chord members which are oppositely arranged for installing the ladder, the rod adds welding points and additional load to two main chord members, the stress of the four main chord members is unbalanced, the strength and torsional rigidity of the main chord members and the web members are poor, the compression stability of a standard joint is weak finally, the local cracking problem of the web member welding line is caused by overlarge rotation torque, and the web member is applicable to a tower crane with small tonnage, if the web member is used for a tower crane with 1000t.m or more, the standard joint is very weak, and the web member is particularly used for a large flat-head tower crane with large upper weight and high tower body strength requirements, so that the standard joint structure for the large flat-head tower crane is designed.
Disclosure of Invention
The utility model provides a standard festival for large-scale flat-head tower crane, it considers the construction of cat ladder, at the beginning of the design, just changes the mode that traditional each face web member arranged the direction and is unanimous completely, with the concentrated tie point distribution of cross web member and diagonal web member to two main chords wherein, vacate two relative main chords and be used for installing cat ladder and space web member, four main chords bearing accept more balanced, bulk strength and torsional rigidity are also showing and are improving.
In order to solve the technical problem that the integral strength and torsional rigidity of the standard joint are poor in the prior art, the application provides a standard joint for a large-scale flat-head tower crane, which comprises a longitudinal main chord member, a horizontal cross rod, a transverse web member, an inclined web member and a space web member;
the longitudinal main chord comprises a first main rod, a second main rod, a third main rod and a fourth main rod, and the longitudinal main chord and a plurality of horizontal cross rods form a cuboid frame;
the transverse web member comprises a first transverse rod, a second transverse rod, a third transverse rod and a fourth transverse rod, wherein the first transverse rod is horizontally connected between the first main rod and the second main rod, the second transverse rod is horizontally connected between the second main rod and the third main rod, the third transverse rod is horizontally connected between the third main rod and the fourth main rod, and the fourth transverse rod is horizontally connected between the fourth main rod and the first main rod;
the diagonal web members comprise a first pair of diagonal members, a second pair of diagonal members, a third pair of diagonal members and a fourth pair of diagonal members, the first main bar and the first cross bar form a Chinese character ' lambdoidal ' Liang Zaoxing, the second pair of diagonal members, the third main bar and the second cross bar form a Chinese character ' lambdoidal ' Liang Zaoxing ', the third pair of diagonal members, the third main bar and the third cross bar form a Chinese character ' lambdoidal ' Liang Zaoxing ', and the fourth pair of diagonal members, the first main bar and the fourth cross bar form a Chinese character ' lambdoidal ' Liang Zaoxing ';
the space web member comprises an upper web member and a lower web member, wherein the upper web member is transversely connected between the first main rod and the third main rod, and the lower web member is transversely connected between the first main rod and the third main rod.
Further, the application provides a large-scale standard festival for flat-head tower crane, wherein, still includes the cat ladder, the cat ladder indulges in the cuboid frame and connect in go up the web member with lower web member.
Further, the application provides a large-scale standard festival for flat-head tower crane, wherein, first to down the diagonal rod include diagonal rod a and down diagonal rod a, go up diagonal rod a one end connect in the upside of first mobile jib, the other end connect in first horizontal pole with the junction of second master rod, down diagonal rod a one end connect in the downside of first mobile jib, the other end connect in first horizontal pole with the junction of second master rod.
Further, the application provides a large-scale standard festival for flat-head tower crane, wherein, the second is to diagonal bar includes diagonal bar b and down diagonal bar b, go up diagonal bar b one end connect in the upside of third mobile jib, the other end connect in the second horizontal pole with the junction of second main pole, down diagonal bar b one end connect in the downside of third mobile jib, the other end connect in the second horizontal pole with the junction of second main pole.
Further, the application provides a large-scale standard festival for flat-head tower crane, wherein, the third is to down inclined rod c and including last inclined rod c, go up inclined rod c one end connect in the upside of third mobile jib, the other end connect in third horizontal pole with junction of fourth master pole, down inclined rod c one end connect in the downside of third mobile jib, the other end connect in third horizontal pole with junction of fourth master pole.
Further, the application provides a large-scale standard festival for flat-head tower crane, wherein, the fourth is to diagonal brace includes diagonal brace d and down diagonal brace d, go up diagonal brace d one end connect in the upside of first mobile jib, the other end connect in fourth horizontal pole with the junction of fourth master pole, down diagonal brace d one end connect in the downside of first mobile jib, the other end connect in fourth horizontal pole with the junction of fourth master pole.
Compared with the prior art, the standard knot for the large-sized flat-head tower crane has the following advantages: considering that the cat ladder needs to be additionally installed, and the cat ladder needs to be fixed in space web member, space web member constitutes space triangle with main chord member, horizontal cross bar, this itself has just strengthened the stability of standard festival, space web member should not only be as the installation carrier of cat ladder, it is whole to be favorable to promoting rigidity and torsion resistance to rationally blend into the standard festival, consider this application and then more distribute other two main chord members with the main chord member welding point at space web member both ends, distribute the welding point of every main chord member more scientifically, make its atress more balanced.
Drawings
FIG. 1 is a schematic view of a standard joint structure for a large-scale flat-head tower crane according to the present application;
FIG. 2 is a schematic diagram of the alternate position structure of FIG. 1;
FIG. 3 is a schematic view of a standard knot setting-up state structure for a large-scale flat-head tower crane;
fig. 4 is a schematic view of a herringbone beam structure.
Wherein: 1. a horizontal cross bar; 2. a ladder stand; 3. a first main lever; 4. a second main lever; 5. a third main lever; 6. a fourth boom; 7. a first cross bar; 8. a second cross bar; 9. a third cross bar; 10. a fourth cross bar; 11. an upper diagonal rod a; 12. a lower inclined rod a; 13. an upper diagonal rod b; 14. a lower diagonal rod b; 15. an upper diagonal bar c; 16. a lower diagonal rod c; 17. an upper diagonal rod d; 18. a lower inclined rod d; 19. an upper web member; 20. a lower web member; 21. a cross beam; 22. a diagonal bracing beam; 23. and (5) vertically supporting the columns.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 3, the present embodiment provides a standard joint for a large-sized flat-head tower crane, which includes a longitudinal main chord member, a horizontal cross bar 1, a cross web member, a diagonal web member, a space web member and a ladder stand 2;
the longitudinal main chord comprises a first main rod 3, a second main rod 4, a third main rod 5 and a fourth main rod 6, and the longitudinal main chord and a plurality of horizontal cross rods 1 form a cuboid frame;
the cross web member comprises a first cross bar 7, a second cross bar 8, a third cross bar 9 and a fourth cross bar 10, wherein the first cross bar 7 is horizontally connected between the first main bar 3 and the second main bar 4, the second cross bar 8 is horizontally connected between the second main bar 4 and the third main bar 5, the third cross bar 9 is horizontally connected between the third main bar 5 and the fourth main bar 6, and the fourth cross bar 10 is horizontally connected between the fourth main bar 6 and the first main bar 3; in this embodiment, the first cross bar 7 is connected to the middle point of the first main bar 3, the second cross bar 8 is connected to the middle point of the second main bar 4, the third cross bar 9 is connected to the middle point of the third main bar 5, and the fourth cross bar 10 is connected to the middle point of the fourth main bar 6;
the diagonal web members comprise a first pair of diagonal members, a second pair of diagonal members, a third pair of diagonal members and a fourth pair of diagonal members, the first main bar 3 and the first cross bar 7 form a Chinese character ' lambdoidal Liang Zaoxing ', the second pair of diagonal members, the third main bar 5 and the second cross bar 8 form a Chinese character ' lambdoidal Liang Zaoxing ', the third pair of diagonal members, the third main bar 5 and the third cross bar 9 form a Chinese character ' lambdoidal Liang Zaoxing ', and the fourth pair of diagonal members, the first main bar 3 and the fourth cross bar 10 form a Chinese character ' lambdoidal Liang Zaoxing;
as shown in fig. 1 and 2, the first pair of diagonal rods includes an upper diagonal rod a11 and a lower diagonal rod a12, one end of the upper diagonal rod a11 is connected to the upper side of the first main rod 3, the other end of the upper diagonal rod a is connected to the connection position of the first cross rod 7 and the second main rod 4, and one end of the lower diagonal rod a12 is connected to the lower side of the first main rod 3, and the other end of the lower diagonal rod a12 is connected to the connection position of the first cross rod 7 and the second main rod 4; the second pair of diagonal rods comprises an upper diagonal rod b13 and a lower diagonal rod b14, one end of the upper diagonal rod b13 is connected to the upper side of the third main rod 5, the other end of the upper diagonal rod b is connected to the joint of the second cross rod 8 and the second main rod 4, and one end of the lower diagonal rod b14 is connected to the lower side of the third main rod 5, and the other end of the lower diagonal rod b14 is connected to the joint of the second cross rod 8 and the second main rod 4; the third pair of diagonal rods comprises an upper diagonal rod c15 and a lower diagonal rod c16, one end of the upper diagonal rod c15 is connected to the upper side of the third main rod 5, the other end of the upper diagonal rod c is connected to the joint of the third cross rod 9 and the fourth main rod 6, and one end of the lower diagonal rod c16 is connected to the lower side of the third main rod 5, and the other end of the lower diagonal rod c16 is connected to the joint of the third cross rod 9 and the fourth main rod 6; the fourth diagonal member comprises an upper diagonal member d17 and a lower diagonal member d18, wherein one end of the upper diagonal member d17 is connected to the upper side of the first main rod 3, the other end of the upper diagonal member is connected to the junction of the fourth cross rod 10 and the fourth main rod 6, and one end of the lower diagonal member d18 is connected to the lower side of the first main rod 3, and the other end of the lower diagonal member is connected to the junction of the fourth cross rod 10 and the fourth main rod 6.
The space web member comprises an upper web member 19 and a lower web member 20, wherein the upper web member 19 is transversely connected between the first main rod 3 and the third main rod 5, and the lower web member 20 is transversely connected between the first main rod 3 and the third main rod 5;
the ladder stand 2 is longitudinally arranged in the rectangular frame and connected to the upper web member 19 and the lower web member 20.
It should be noted that the herringbone Liang Youchen is a sloping roof, and is in a triangular shape, as shown in fig. 4, and is composed of a cross beam 21, two diagonal bracing beams 22 and a vertical support column 23, where the cross beam 21 corresponds to the first main rod 3 and the third main rod 5 in this embodiment; the diagonal brace 22 corresponds to the upper diagonal brace a11, the lower diagonal brace a12, the upper diagonal brace b13, the lower diagonal brace b14, the upper diagonal brace c15, the lower diagonal brace c16, the upper diagonal brace d17, and the lower diagonal brace d18 in the present embodiment; the vertical support column 23 corresponds to the first rail 7, the second rail 8, the third rail 9, and the fourth rail 10 in the present embodiment.
Finally, what is to be described is: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the examples, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (6)

1. The standard knot for the large-sized flat-head tower crane is characterized by comprising a longitudinal main chord member, a horizontal cross bar, a transverse web member, an inclined web member and a space web member;
the longitudinal main chord comprises a first main rod, a second main rod, a third main rod and a fourth main rod, and the longitudinal main chord and a plurality of horizontal cross rods form a cuboid frame;
the transverse web member comprises a first transverse rod, a second transverse rod, a third transverse rod and a fourth transverse rod, wherein the first transverse rod is horizontally connected between the first main rod and the second main rod, the second transverse rod is horizontally connected between the second main rod and the third main rod, the third transverse rod is horizontally connected between the third main rod and the fourth main rod, and the fourth transverse rod is horizontally connected between the fourth main rod and the first main rod;
the diagonal web members comprise a first pair of diagonal members, a second pair of diagonal members, a third pair of diagonal members and a fourth pair of diagonal members, the first main bar and the first cross bar form a Chinese character ' lambdoidal ' Liang Zaoxing, the second pair of diagonal members, the third main bar and the second cross bar form a Chinese character ' lambdoidal ' Liang Zaoxing ', the third pair of diagonal members, the third main bar and the third cross bar form a Chinese character ' lambdoidal ' Liang Zaoxing ', and the fourth pair of diagonal members, the first main bar and the fourth cross bar form a Chinese character ' lambdoidal ' Liang Zaoxing ';
the space web member comprises an upper web member and a lower web member, wherein the upper web member is transversely connected between the first main rod and the third main rod, and the lower web member is transversely connected between the first main rod and the third main rod.
2. The standard knot for a large flat head tower crane according to claim 1, further comprising a ladder longitudinally disposed within the rectangular parallelepiped frame and connected to the upper web member and the lower web member.
3. The standard knot for a large-sized flat head tower crane according to claim 1, wherein the first pair of diagonal rods comprises an upper diagonal rod a and a lower diagonal rod a, one end of the upper diagonal rod a is connected to the upper side of the first main rod, the other end of the upper diagonal rod a is connected to the connection part of the first cross rod and the second main rod, and one end of the lower diagonal rod a is connected to the lower side of the first main rod, and the other end of the lower diagonal rod a is connected to the connection part of the first cross rod and the second main rod.
4. The standard knot for a large-sized flat head tower crane according to claim 1, wherein the second pair of diagonal rods comprises an upper diagonal rod b and a lower diagonal rod b, one end of the upper diagonal rod b is connected to the upper side of the third main rod, the other end of the upper diagonal rod b is connected to the junction of the second cross rod and the second main rod, and one end of the lower diagonal rod b is connected to the lower side of the third main rod, and the other end of the lower diagonal rod b is connected to the junction of the second cross rod and the second main rod.
5. The standard knot for a large-sized flat head type tower crane according to claim 1, wherein the third pair of diagonal rods comprises an upper diagonal rod c and a lower diagonal rod c, one end of the upper diagonal rod c is connected to the upper side of the third main rod, the other end of the upper diagonal rod c is connected to the junction of the third cross rod and the fourth main rod, and one end of the lower diagonal rod c is connected to the lower side of the third main rod, and the other end of the lower diagonal rod c is connected to the junction of the third cross rod and the fourth main rod.
6. The standard knot for a large-sized flat head type tower crane according to claim 1, wherein the fourth pair of diagonal rods comprises an upper diagonal rod d and a lower diagonal rod d, one end of the upper diagonal rod d is connected to the upper side of the first main rod, the other end of the upper diagonal rod d is connected to the junction of the fourth cross rod and the fourth main rod, and one end of the lower diagonal rod d is connected to the lower side of the first main rod, and the other end of the lower diagonal rod d is connected to the junction of the fourth cross rod and the fourth main rod.
CN202321763562.2U 2023-07-06 2023-07-06 Standard knot for large-scale flat-head tower crane Active CN220317201U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321763562.2U CN220317201U (en) 2023-07-06 2023-07-06 Standard knot for large-scale flat-head tower crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321763562.2U CN220317201U (en) 2023-07-06 2023-07-06 Standard knot for large-scale flat-head tower crane

Publications (1)

Publication Number Publication Date
CN220317201U true CN220317201U (en) 2024-01-09

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ID=89424669

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321763562.2U Active CN220317201U (en) 2023-07-06 2023-07-06 Standard knot for large-scale flat-head tower crane

Country Status (1)

Country Link
CN (1) CN220317201U (en)

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