CN215498060U

CN215498060U - Arc rib limit high strength crane span structure

Info

Publication number: CN215498060U
Application number: CN202121144136.1U
Authority: CN
Inventors: 时进专
Original assignee: Zhenjiang Chengbang Machinery Manufacturing Co ltd
Current assignee: Zhenjiang Chengbang Machinery Manufacturing Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-01-11
Anticipated expiration: 2031-05-26

Abstract

The utility model relates to an arc rib edge high-strength bridge frame, which comprises a cross arm with steps, ladder edges vertically arranged at two sides of the cross arm, through holes are arranged between adjacent steps, pull ribs protruding towards the top of the bridge frame are arranged on the steps, the ladder edges and the cross arm are in an integral structure, at least two arc concave ribs which traverse the bridge frame and are sunken towards the inside of the bridge frame are arranged on the ladder edges, each pull rib comprises a first convex rib, a second convex rib and a third convex rib, folded edges are arranged on the ladder edges at two sides, at least one edge pressing rib arranged corresponding to the edges of two ends of the first convex rib is arranged on the cross arm, the pull ribs are formed by arranging the first convex rib, the second convex rib and the third convex rib positioned at the center of the second convex rib obliquely on two end walls and two side walls with the cross arm, the total height of the pull ribs after punching through holes is increased, the load strength and the bonding surface strength are improved, a punching through hole section can be used for connecting the bridge frame to be continuously paved, and the deformation resistance of the ladder edges is improved by the arc concave ribs and the reinforcing concave ribs, the integral strength and load of the integral bridge frame are improved, the service life is prolonged, and the application requirements are met.

Description

Arc rib limit high strength crane span structure

Technical Field

The utility model relates to an arc rib edge high-strength bridge frame, and belongs to the technical field of bridge frames.

Background

The cable bridge is divided into structures such as a groove type cable bridge, a tray type cable bridge, a ladder type cable bridge and a grid bridge, and the like, is composed of a support, a supporting arm, an installation accessory and the like, can be independently erected, can also be laid on various buildings and pipe gallery supports, and has the characteristics of simple structure, attractive appearance, flexible configuration, convenience in maintenance and the like. The ladder-type cable bridge among the prior art generally is formed by the perpendicular welding of the ladder limit of cross arm and cross arm both sides, needs the manual work to clear away the welding slag, and machining efficiency is low, uses welding, riveting point easy fracture for a long time, though has to adopt among the prior art to set up the lacing wire structure on the cross arm step, nevertheless receives the lacing wire shape and highly restricted load strength still limited, and the ladder limit receives vertical direction pressure, horizontal direction impact force effect to have the yielding condition simultaneously, makes intensity unable the satisfying application demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an arc rib edge high-strength bridge frame, which aims to overcome the defects of the prior art, adopts two end walls and two side walls which are obliquely provided with a first convex rib, a second convex rib and a third convex rib positioned at the center of the second convex rib to form a tie bar, increases the total height of the tie bar after punching through holes, improves the load strength and the joint surface strength, can be used for connecting the bridge frame to be continuously paved by punching through hole sections, improves the deformation resistance of a ladder edge by using an arc concave rib and a reinforcing concave rib, improves the integral strength and load of the integrated bridge frame, prolongs the service life and meets the application requirements.

The utility model is realized by the following technical scheme:

a high-strength bridge with arc-shaped rib edges comprises a cross arm with steps, ladder edges vertically arranged on two sides of the cross arm, through holes are formed between adjacent steps, tie bars protruding towards the top of the bridge are arranged on the steps, the ladder edges and the cross arm are of an integrated structure, at least two arc-shaped concave ribs which cross the bridge and are of an arc-shaped structure in cross section and are recessed towards the inside of the bridge are arranged on the ladder edges, each tie bar comprises a first convex rib protruding towards the top of the bridge, a second convex rib which is located at the center of the first convex rib and protrudes towards the top of the bridge, and a third convex rib which is located at the center of the second convex rib and protrudes towards the top of the bridge, two end walls and two side walls of the first convex rib and the second convex rib are both obliquely arranged with the cross arm, and the bottom width of each third convex rib is smaller than the top width of the second convex rib;

the ladder sides on the two sides are provided with folded edges which are of an integrated structure and are arranged oppositely to the ladder sides, the end parts of the folded edges are vertically connected with the ladder sides, the cross sections of the folded edges are of a C-shaped structure, the ladder sides are provided with a plurality of reinforcing concave ribs which are positioned between adjacent arc-shaped concave ribs and are arranged at intervals, and the side walls of the reinforcing concave ribs are obliquely arranged with the ladder sides;

the included angle theta 1 between the two end walls of the first convex rib and the cross arm is larger than the included angle theta 2 between the two end walls of the second convex rib and the cross arm, the two side walls of the first convex rib and the two side walls of the second convex rib are correspondingly arranged in a coplanar manner, the total width d of the step and the through hole is 300mm, the height H from the top of the third convex rib to the bottom of the cross arm is 10-20mm, the section of the third convex rib is of an arc-shaped structure, and the two end surfaces of the third convex rib and the two end surfaces of the second convex rib are arranged in a coplanar manner;

the cross arm is provided with at least one edge rib press corresponding to the edges of two ends of the first convex rib, the ladder edge is provided with a plurality of steel seals positioned between adjacent arc-shaped concave ribs and connecting hole arrays positioned at two ends of the ladder edge, the inner side or the outer side of the ladder edge is provided with a connecting plate connected with the connecting hole arrays, and the size of the connecting plate is smaller than or equal to that of the through hole.

The utility model has the beneficial effects that:

(1) the bridge frame section bar is formed by firstly punching through holes to form steps, reducing the edge material of the lacing wires so as to facilitate the lacing wires to be pulled high, then punching the lacing wires, reinforcing concave ribs, steel marks and connecting hole arrays, and then bending to form arc-shaped concave ribs, ladder sides and folded edges so as to form an integrated structure, so that the process and parts of split type welding or riveting are omitted, the punched through hole section bar can be directly or cut out to be used as a connecting plate to be connected with the connecting hole arrays, the end connection of two bridge frames is realized so as to facilitate continuous laying, the processing efficiency is improved, the material is fully utilized, and the cost is reduced;

(2) the first convex rib protruding towards the top of the bridge frame, the second convex rib positioned at the center of the first convex rib and the third convex rib positioned at the center of the second convex rib are adopted to form a tie bar, the total height of the tie bar is increased, the load intensity is improved, meanwhile, the two end walls and the two side walls of the first convex rib and the second convex rib are obliquely arranged with the cross arm, the two side walls of the first convex rib and the two side walls of the second convex rib are correspondingly arranged in a coplanar manner, the two end surfaces of the third convex rib and the two end surfaces of the second convex rib are arranged in a coplanar manner, the joint surface intensity of the side wall of the first convex rib and the step, the side wall of the second convex rib and the step as well as the top of the first convex rib, the top of the second convex rib, and the joint surface intensity of the third convex rib and the second convex rib are increased, and the load intensity of the step where the tie bar is positioned is improved;

(3) through at least two arc structures that traverse crane span structure and cross-section, to the concave muscle of the inside sunken arc of crane span structure, lie in a plurality of enhancement concave muscle between the concave muscle of adjacent arc, avoid the ladder limit to hang and stride too big, improve the resistance to deformation that the ladder limit received vertical direction pressure, horizontal direction impact force to sum up improve integral type crane span structure bulk strength and load, increase the life-span, satisfy the application demand.

Drawings

FIG. 1 is a front view of the present invention.

FIG. 2 is a side view of the present invention.

Fig. 3 is a bottom view of the present invention.

Fig. 4 is a cross-sectional view along AA of fig. 3.

Fig. 5 is an enlarged view of a portion B of fig. 4.

Fig. 6 is a connection structure of two bridges.

The labels in the figure are: the stair comprises a stair step 1, a cross arm 2, a stair side 3, a through hole 4, a tie bar 5, an arc-shaped concave bar 6, a first convex bar 51, a second convex bar 52, a third convex bar 53, a folded edge 7, a reinforcing concave bar 8, an edge pressing bar 9, a steel seal 11, a connecting hole array 12 and a connecting plate 13.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

A high-strength bridge with arc-shaped rib edges comprises a cross arm 2 with steps 1, ladder edges 3 vertically arranged on two sides of the cross arm 2, through holes 4 are formed between adjacent steps 1, a tie bar 5 protruding towards the top of the bridge is arranged on each step 1, each ladder edge 3 and the cross arm 2 are of an integrated structure, at least two arc-shaped concave ribs 6 which cross the bridge and are of an arc-shaped structure in cross section and are recessed towards the inside of the bridge are arranged on each ladder edge 3, each tie bar 5 comprises a first convex rib 51 protruding towards the top of the bridge, a second convex rib 52 located at the center of the first convex rib 51 and protruding towards the top of the bridge, and a third convex rib 53 located at the center of the second convex rib 52 and protruding towards the top of the bridge, two end walls and two side walls of the first convex rib 51 and the second convex rib 52 are both inclined with the cross arm 2, and the bottom width of the third convex rib 53 is smaller than the top width of the second convex rib 52;

the ladder sides 3 on the two sides are provided with folded edges 7 which are of an integrated structure and are arranged oppositely to the ladder sides 3, the end parts of the folded edges 7 are vertically connected with the ladder sides 3, the cross sections of the folded edges are of a C-shaped structure, a plurality of reinforcing concave ribs 8 which are positioned between adjacent arc-shaped concave ribs 6 and are arranged at intervals are arranged on the ladder sides 3, and the side walls of the reinforcing concave ribs 8 are obliquely arranged with the ladder sides 3;

an included angle theta 1 between two end walls of the first convex rib 51 and the cross arm 2 is larger than an included angle theta 2 between two end walls of the second convex rib 52 and the cross arm 2, two side walls of the first convex rib 51 and two side walls of the second convex rib 52 are arranged in a coplanar manner, the total width d of the step 1 and the through hole 4 is 300mm, the height H from the top of the third convex rib 53 to the bottom of the cross arm 2 is 10-20mm, the section of the third convex rib 53 is of an arc structure, and two end faces of the third convex rib 53 and two end faces of the second convex rib 52 are arranged in a coplanar manner;

be equipped with at least one edge ribbing 9 that corresponds first protruding muscle 51 both ends edge setting on the cross arm 2, edge ribbing 9 is C shape structure and projects to cross arm 2 top, be equipped with a plurality of embossed seal 11 that are located between the adjacent arc concave muscle 6 on the ladder limit 3, be located the connecting hole array 12 at 3 both ends on the ladder limit, 3 inboard or the outside on ladder limit are equipped with the connecting plate 13 that links to each other with connecting hole array 12, connecting plate 13 less than or equal to through-hole 4 sizes.

The principle of the utility model is as follows:

referring to the attached drawings, the bridge section is formed by firstly punching a through hole 4 to form a step 1, reducing the edge material of the tie bar 5 so that the tie bar 5 can be pulled high, then punching the tie bar 5, a reinforcing concave bar 8, a steel seal 11 and a connecting hole array 12, and then bending to form an arc-shaped concave bar 6, a step edge 3 and a folded edge 7, so that an integrated structure is formed, the process and parts of split type welding or riveting are omitted, the processing efficiency is improved, and the cost is reduced; the steel seal 11 is used for marking the bridge material or manufacturers;

on the step 1 of the cross arm 2, a first convex rib 51 protruding towards the top of the bridge, a second convex rib 52 positioned at the center of the first convex rib 51 and a third convex rib 53 positioned at the center of the second convex rib 52 are adopted to form a tie bar 5, the total width d of the step 1 and the through hole 4 is controlled to be 100-300mm, the height H from the top of the third convex rib 53 to the bottom of the cross arm 2 is 10-20mm, the tie bar 5 is punched after punching, so that the tie bar 5 is easy to form, the total height of the tie bar 5 is increased, and the load strength is improved;

the two end walls and two side walls of the first convex rib 51 and the second convex rib 52 are obliquely arranged with the cross arm 2, an included angle theta 1 between the two end walls of the first convex rib 51 and the cross arm 2 is larger than an included angle theta 2 between the two end walls of the second convex rib 52 and the cross arm 2, the two side walls of the first convex rib 51 and the two side walls of the second convex rib 52 are correspondingly arranged in a coplanar manner, so that the deformation resistance of the side wall of the first convex rib 51 and the step 1 is improved, the deformation resistance of the side wall of the second convex rib 52 and the tops of the step 1 and the first convex rib 51 is improved, and the deformation resistance of the material at the edge of the first convex rib 51 is improved by at least one edge pressing rib 9 which is in a C-shaped structure and corresponds to the edge of the first convex rib 51;

the width of the bottom of the third rib 53 is smaller than the width of the top of the second rib 52, the section of the third rib 53 is of an arc structure, two end faces of the third rib 53 and two end faces of the second rib 52 are arranged in a coplanar manner, so that the deformation resistance of the top of the second rib 52 and the strength of a combined surface of the third rib 53 and the second rib 52 are increased, and the load strength of the step 1 where the lacing wire 5 is located is improved;

ladder limit 3 is structural, be the arc structure through at least two traverse crane span structure and cross-sections, to the concave muscle 6 of the inside sunken arc of crane span structure, be located a plurality of enhancement concave muscle 8 between the concave muscle 6 of adjacent arc, it is too big to avoid 3 dangling strides in ladder limit, improve ladder limit 3 and receive vertical direction pressure, the resistance to deformation of horizontal direction impact force, strengthen concave muscle 8 lateral wall and 3 slopes to set up with ladder limit and improve the bonding strength who strengthens concave muscle 8 and ladder limit 3, thereby to sum up and improve crane span structure bulk strength and load, increase of service life, satisfy the application demand.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A high-strength bridge with arc-shaped rib edges comprises a cross arm (2) with steps (1), ladder edges (3) vertically arranged on two sides of the cross arm (2), through holes (4) are arranged between adjacent steps (1), and pull ribs (5) protruding towards the top of the bridge are arranged on the steps (1), and the high-strength bridge is characterized in that the ladder edges (3) and the cross arm (2) are of an integral structure, at least two arc-shaped concave ribs (6) which traverse the bridge and have arc-shaped cross sections and are recessed towards the inside of the bridge are arranged on the ladder edges (3), each pull rib (5) comprises a first convex rib (51) protruding towards the top of the bridge, a second convex rib (52) positioned at the center of the first convex rib (51) and protruding towards the top of the bridge, and a third convex rib (53) positioned at the center of the second convex rib (52) and protruding towards the top of the bridge, two end walls and two side walls of the first convex rib (51) and the second convex rib (52) are obliquely arranged with the cross arm (2), the bottom width of the third rib (53) is smaller than the top width of the second rib (52).

2. The arc rib edge high-strength bridge frame as claimed in claim 1, wherein the ladder edges (3) on both sides are provided with folded edges (7) which are integrated with the ladder edges (3) and are oppositely arranged, the end parts of the folded edges (7) are vertically connected with the ladder edges (3), and the cross section of the folded edges is of a C-shaped structure.

3. The arc rib edge high-strength bridge frame as claimed in claim 1, wherein a plurality of reinforcing concave ribs (8) are arranged on the ladder edge (3) at intervals between adjacent arc concave ribs (6), and the side walls of the reinforcing concave ribs (8) are obliquely arranged with the ladder edge (3).

4. The arc rib edge high-strength bridge frame as claimed in claim 1, wherein an included angle θ 1 between two end walls of the first rib (51) and the cross arm (2) is greater than an included angle θ 2 between two end walls of the second rib (52) and the cross arm (2), and two side walls of the first rib (51) and two side walls of the second rib (52) are arranged in a coplanar manner.

5. The bridge frame with curved rib edges and high strength as claimed in claim 1, wherein the total width d of the steps (1) and the through holes (4) is 100-300mm, and the height H from the top of the third ribs (53) to the bottom of the cross arm (2) is 10-20 mm.

6. The bridge frame with the arc-shaped rib edge and the high strength as claimed in claim 1, wherein the third rib (53) has an arc-shaped cross section, and two end faces of the third rib (53) and two end faces of the second rib (52) are arranged in a coplanar manner.

7. The arc rib edge high-strength bridge frame as claimed in claim 1, wherein at least one edge bead (9) is disposed on the cross arm (2) corresponding to the edges of the two ends of the first rib (51), and the edge bead (9) is in a C-shaped structure and protrudes toward the top of the cross arm (2).

8. The high-strength bridge with the arc-shaped rib edges as claimed in any one of claims 1 to 7, wherein a plurality of steel stamps (11) positioned between adjacent arc-shaped concave ribs (6) and connecting hole arrays (12) positioned at two ends of the ladder edge (3) are arranged on the ladder edge (3).

9. The arc rib edge high-strength bridge frame as claimed in claim 8, wherein the inner side or the outer side of the ladder edge (3) is provided with a connecting plate (13) connected with the connecting hole array (12), and the size of the connecting plate (13) is smaller than or equal to that of the through hole (4).