CN219098542U

CN219098542U - Crane beam body

Info

Publication number: CN219098542U
Application number: CN202320131289.5U
Authority: CN
Inventors: 任军辉; 张维友; 丁鑫婉; 李港; 袁鑫
Original assignee: China Railway Wuxin Heavy Industry Co Ltd
Current assignee: China Railway Wuxin Heavy Industry Co Ltd
Priority date: 2023-01-16
Filing date: 2023-01-16
Publication date: 2023-05-30
Anticipated expiration: 2033-01-16

Abstract

The application discloses a hoist roof beam body includes: the heights of the two side ends of the cover plate in the width direction of the cross section of the beam body are lower than the height of the central position of the cover plate; the webs are arranged at the two side ends of the cover plate; the partition plates are arranged between the webs in parallel along the length direction of the beam body; the bottom plate is arranged at the bottom of the partition plate, two ends of the bottom plate are connected with the web plate, and the reinforcing rib plate is arranged on the web plate and the partition plate. Compared with the prior art, the crane beam disclosed by the application has the advantages that rainwater and dust are not easy to accumulate on the beam cover plate, the cleaning is convenient, and the service life of equipment is prolonged.

Description

Crane beam body

Technical Field

The application relates to the technical field of crane beam bodies, and more particularly relates to a crane beam body.

Background

At present, the crane beam body mainly comprises a cover plate, a bottom plate, left and right webs and reinforcing rib plates on the plates, and is generally of a box-shaped structure with a quadrangular section, four corners of the box body are right angles, and the plate surfaces of the cover plate, the bottom plate, the left and right webs are of a planar structure. However, for lifting equipment with larger cross section size of the beam body, the general height and width are more than 3 meters, and the lifting equipment works in places with heavier dust in bulk ports and docks such as mines, coal ores and the like and higher humidity, because the cross section size of the beam body is large, partial concave phenomenon in the welding process is unavoidable, dust and rainwater are extremely easy to stick and accumulate on the cover plate of the crane beam body, the cleaning difficulty is high, the corrosiveness of the cover plate of the beam body is greatly increased, and the service life and the safety of the lifting equipment are influenced.

For the manufacture of the crane beam body, the left web plate and the right web plate are of planar structures due to the tradition Liang Tigai and the bottom plate, and at present, each plate is spliced and welded into an upper cover plate and a lower cover plate or left web plate and right web plate in the length direction and the width direction or in the length direction only by adopting a splicing and welding mode of a plurality of steel plates.

Therefore, how to provide a large-section crane beam body and a manufacturing method thereof, the crane beam body can enable rainwater and dust not to be easily accumulated on a beam body cover plate, is convenient to clean, prolongs the service life of equipment, and is a technical problem to be solved by the person skilled in the art.

Disclosure of Invention

For solving above-mentioned technical problem, this application provides a hoist roof beam body, and this hoist roof beam body can make rainwater, dirt ash be difficult for piling up on roof beam body apron, thereby the life of extension equipment of being convenient for clean.

The technical scheme provided by the application is as follows:

the application provides a crane beam body, include: the heights of the two side ends of the cover plate in the width direction of the cross section of the beam body are lower than the height of the central position of the cover plate; the webs are arranged at the two side ends of the cover plate; the partition plates are arranged between the webs in parallel along the length direction of the beam body; the bottom plate, the cover plate and the web plate are enclosed to form a pentagonal structure with a yurt-shaped cross section; reinforcing rib plates arranged on the webs and the partition plates.

Further, in a preferred mode of the utility model, the cover plate has a herringbone structure in the cross section direction of the beam body;

the herringbone structure is integrally formed, and the included angle between the lowest points of the two sides of the herringbone structure and the horizontal plane is 2-10 degrees.

Further, in a preferred mode of the present utility model, the reinforcing rib plate includes:

the first rib plate is arranged on the inner side surfaces of the cover plate and the bottom plate;

rib plate grooves are formed in the top and the bottom of the partition plate, and the first rib plates are arranged in the rib plate grooves;

the second rib plates are arranged on the inner side surfaces of the webs, and the third rib plates are arranged on the partition plates in a crisscross mode.

Specifically, the crane beam body related to the application is manufactured by the following steps:

s1, material configuration: preparing a cover plate, a bottom plate, left and right webs, a first rib plate, a second rib plate and a third rib plate which are required by manufacturing the crane beam body, wherein each plate is of a planar structure; s2, spot welding assembly: the first rib plates are arranged on the inner side surfaces of the bottom plates and are spot-welded to form a bottom plate assembly, the second rib plates are arranged on the inner side surfaces of the left and right webs and are spot-welded to form a web assembly, the third rib plates are vertically and crosswise arranged on the partition plates and are spot-welded to form a partition plate assembly; s3, pretreatment of a cover plate: placing the cover plate on a leveling working platform, arranging first rib plates on one side of the cover plate in the width direction side by side, and spot-welding the first rib plates on the cover plate along the length direction of the beam body; s4, spot mounting of a partition plate: the partition board assembly is inversely arranged on the cover board, and a first rib board on the cover board is arranged in a rib board groove at one side of the partition board; then, attaching the baffle plate assembly and one side of the cover plate, and spot-mounting and welding the baffle plate assembly and the cover plate along the length direction of the beam body; s5, spot mounting of the same-side web plates: the web plate assembly on one side of the beam body is installed on one side of the partition plate assembly in a spot mode, so that the web plate is connected with the cover plate and the partition plate assembly, and a connecting welding seam between the web plate and the cover plate is welded; s6, preassembling rib plates: a first rib plate which is not spot-welded on the other side of the width direction of the cover plate is arranged in a rib plate groove on the other side of the partition plate; s7, bending the cover plate: bending the other side of the cover plate in the width direction to form a herringbone structure cover plate, enabling the other side of the herringbone structure cover plate to be attached to the partition plate assembly, and then fixing the other side of the herringbone structure cover plate and each partition plate assembly through spot welding; s8, fixing rib plates: the first rib plate preassembled in the rib plate groove at the other side of the partition plate is subjected to spot welding with the other side of the cover plate, so that position fixing is realized; s9, spot mounting of the opposite side web plates: the web plate component on the other side of the beam body is installed on the other side of the partition plate component in a spot mode, so that the web plate on the other side is connected with the cover plate and the partition plate component, and a connecting welding seam between the web plate on the other side and the cover plate is welded; s10, sealing a beam body: and supporting the inclined planes on the two sides of the formed herringbone structure cover plate to be in a correcting state, then arranging the bottom plate component between the two web components and supporting the bottom plate component with the partition board component, enabling the bottom plate component to be in spot welding connection with each component to form a box-shaped structure with a closed section, and then welding inner and outer welding seams at the connecting positions of each component to finish the manufacturing of the crane girder.

Further, in a preferred mode of the present utility model, in step S5 and step S9, the welding mode of the connecting weld seam between the web and the cover plate is specifically:

the interval of the connecting weld joints between the web plate and the cover plate is 500-800 mm, and the welding is 100mm.

Further, in a preferred mode of the present utility model, in step S7, the mode of bending the cover plate includes: the device is bent and the wedge block is forced to bend.

Further, in a preferred mode of the present utility model, the step of bending the device includes:

step one, cushion blocks are arranged below a cover plate corresponding to the preset partition plate assembly and on two sides of the cover plate, wherein the two sides are spaced from the position by a preset distance, so that the end part of the cover plate is separated from a working platform;

step two, arranging a tensioning device between the padded cover plate and the web plate after spot welding of one side of the beam body, wherein the tensioning device, the web plate and the cover plate form a triangle in the cross section direction of the beam body;

heating in a fixed width range of the middle position of the width direction of the cover plate, namely heating in a fixed width range of a bending position of the plate surface of the cover plate, wherein the heating sequence is carried out from the left side and the right side of the preset partition plate assembly;

and step four, heating and adjusting the adjusting sequence of the tensioning device and the heating sequence of the cover plate simultaneously, so that the inner side surface of the cover plate is attached to the baffle plate assembly, the cover plate and the baffle plate assembly are firmly spot-welded, and the cover plate bending is completed.

Further, in a preferred form of the utility model, the tensioning device is provided in a plurality of pieces, preferably four pieces;

the two tensioning devices are arranged on two sides of the preset partition plate assembly symmetrically, and the two tensioning devices of each group are mutually spaced;

the distance between the first group of tensioning devices and the preset partition plate assembly is 5-12 times of the thickness of the cover plate;

the distance between the second group of tensioning devices and the preset partition plate assembly is more than 15 times of the thickness of the cover plate, and the distance between the second group of tensioning devices and the preset partition plate assembly is not more than half of the distance between the second group of tensioning devices and the preset partition plate assembly;

the heating temperature is 300-600 ℃ within the fixed width range of the bending part of the cover plate surface, and the fixed width range is specifically 2-4 times of the thickness of the cover plate.

Further, in a preferred mode of the present utility model, the step of bending the wedge block under force includes:

step one, wedge-shaped blocks are arranged below a cover plate corresponding to the preset partition plate assembly and at two sides which are spaced from the cover plate by a preset distance;

and thirdly, heating, applying external force perpendicular to the length direction of the beam body to each wedge-shaped block below the cover plate, wherein the pressing sequence is the same as the cover plate heating sequence, so that the inner side surface of the cover plate is attached to the baffle plate assembly, and then the cover plate and the baffle plate assembly are firmly spot-welded, so that the cover plate bending is completed.

Further, in a preferred form of the utility model, the wedge is provided in a plurality of pieces, preferably five pieces;

the four parts are divided into two groups except one part under the cover plate at the corresponding position of the preset baffle plate assembly, and two wedge-shaped blocks of each group are mutually spaced and symmetrically arranged at two sides of the preset baffle plate assembly;

the distance between the first group of wedge-shaped blocks and the preset partition plate assembly is 5-12 times of the thickness of the cover plate;

the distance between the second group of wedge-shaped blocks and the preset baffle plate assembly is more than 15 times of the thickness of the cover plate, and the distance between the second group of wedge-shaped blocks and the preset baffle plate assembly is not more than half of the distance between the two baffle plate assemblies;

The utility model provides a crane beam body, which comprises: the heights of the two side ends of the cover plate in the width direction of the cross section of the beam body are lower than the height of the central position of the cover plate; the webs are arranged at the two side ends of the cover plate; the partition plates are arranged between the webs in parallel along the length direction of the beam body; the bottom plate, the cover plate and the web plate are enclosed to form a pentagonal structure with a yurt-shaped cross section; and reinforcing rib plates arranged on the webs and the partition plates. The main structure body of the crane girder body consists of the cover plate, the bottom plate, the left web plate and the right web plate and the reinforcing rib plate; the key lies in the apron, in its cross section direction the height of apron both sides end is less than the height of its middle position, makes the apron wholly be the chevron shape structure, can make the dust impurity in the operational environment be difficult for pile up on the chevron shape structure apron, be convenient for clean, can improve the life of hoist roof beam body. Therefore, compared with the prior art, the crane beam body has the advantages that rainwater and dust are not easy to accumulate on the beam body cover plate, cleaning is convenient, and the service life of equipment is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a cross section of a crane beam provided by an embodiment of the utility model;

FIG. 2 is a side view of the crane beam provided by the embodiment of the utility model;

FIG. 3 is a block flow diagram of steps of a method for manufacturing a crane beam according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the spot welding baffle plate assembly according to the embodiment of the present utility model;

fig. 5 is a schematic diagram of pretreatment of the cover plate according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the assembly of the partition and the cover plate according to the embodiment of the present utility model;

FIG. 7 is a schematic view of the same-side web, cover plate and separator assembly according to an embodiment of the present utility model;

FIG. 8 is a front view of the tensioner assembly according to an embodiment of the present utility model;

FIG. 9 is a side view of the tensioner according to an embodiment of the present utility model;

FIG. 10 is a schematic view of the spot assembly of the contralateral web, the cover plate and the separator plate according to the embodiment of the present utility model;

FIG. 11 is a schematic view of the beam body according to an embodiment of the present utility model;

FIG. 12 is a front view of the wedge block installation provided by an embodiment of the present utility model;

fig. 13 is a side view of the wedge block installation provided by an embodiment of the present utility model.

Reference numerals illustrate:

a cover plate 1; a web 2; a separator 3; a bottom plate 4; reinforcing rib plates 5; a first rib plate 6; a rib plate groove 7; a second rib plate 8; a third rib 9; a tensioning device 10; wedge 11.

Detailed Description

In order to better understand the technical solutions in the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "first," "second," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" is two or more, unless explicitly defined otherwise.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the scope of the present disclosure, since any structural modifications, proportional changes, or dimensional adjustments made by those skilled in the art should not be made in the present disclosure without affecting the efficacy or achievement of the present disclosure.

As shown in fig. 1 to 13, a crane beam provided in an embodiment of the present application includes: the cover plate 1, the height of the two side ends of the cover plate 1 in the width direction of the beam body section is lower than the height of the central position of the cover plate 1; webs 2 arranged at both side ends of the cover plate 1; the partition plates 3 are arranged between the webs 2 side by side along the length direction of the beam body; the bottom plate 4 is arranged at the bottom of the partition plate 3, and two ends of the bottom plate are connected with the web plate 2; the bottom plate 4, the cover plate 1 and the web plate 2 are enclosed to form a pentagonal structure with a yurt-shaped cross section; reinforcing rib plates 5 provided on the web plates 2 and the separator plates 3.

The utility model provides a crane beam body, which specifically comprises: the cover plate 1, the height of the two side ends of the cover plate 1 in the width direction of the beam body section is lower than the height of the central position of the cover plate 1; webs 2 arranged at both side ends of the cover plate 1; the partition plates 3 are arranged between the webs 2 side by side along the length direction of the beam body; the bottom plate 4 is arranged at the bottom of the partition plate 3, two ends of the bottom plate 4 are connected with the web plates 2, and the bottom plate 4, the cover plate 1 and the web plates 2 are enclosed to form a pentagonal structure with a yurt-shaped cross section; reinforcing rib plates 5 provided on the web plates 2 and the separator plates 3. The structural main body of the crane girder body consists of a cover plate 1, a bottom plate 4, left and right webs 2 and reinforcing rib plates 5; the key lies in the apron 1, in its cross section direction the height of apron 1 both sides end is less than the height of its middle position, makes apron 1 wholly be the chevron shape structure, can make the dust impurity in the operational environment be difficult for piling up on the chevron shape structure apron 1, and the cleaning of being convenient for can improve the life of hoist roof beam body. Therefore, compared with the prior art, the crane beam body can enable rainwater and dust not to be easily accumulated on the beam body cover plate 1, is convenient to clean and prolongs the service life of equipment.

Specifically, in the specific embodiment of the present utility model, the cover plate 1 has a herringbone structure in the cross section direction of the beam body; the herringbone structure is integrally formed, and the included angle between the lowest points of the two sides of the herringbone structure and the horizontal plane is 2-10 degrees.

Wherein, apron 1 integrated into one piece is through bending being the chevron shape structure, can enough make the hoist roof beam body can reduce the welding volume and because of the deformation that the welding leads to when welding, also can make the hoist roof beam body reduces the accumulation of dust and rainwater on the apron 1 at work.

Specifically, in the embodiment of the present utility model, the reinforcing rib plate 5 includes: the first rib plates 6 are arranged on the inner side surfaces of the cover plate 1 and the bottom plate 4; the top and the bottom of the partition plate 3 are respectively provided with a rib plate groove 7, and the first rib plate 6 is arranged in the rib plate grooves 7; the second rib plates 8 are arranged on the inner side surfaces of the webs 2, and the third rib plates 9 are arranged on the partition plates 3 in a crisscross manner.

The reinforcing rib plate 5 is used for reinforcing the bearing capacity of the crane beam body and consists of the first rib plate 6, the second rib plate 8 and the third rib plate 9; the first rib plates 6 are used for being connected with the cover plate 1 and the bottom plate 4 to form a cover plate assembly and a bottom plate assembly respectively, the second rib plates 8 are used for being connected with the left web plate and the right web plate 2 to form a web plate assembly, and the third rib plates 9 are used for being connected with the partition plate 3 to form a partition plate assembly.

In addition, the embodiment of the utility model also provides auxiliary descriptions for a manufacturing method of the crane girder body, and the method comprises the following steps: s1, material configuration: preparing a cover plate 1, a bottom plate 4, left and right webs 2, a first rib plate 6, a second rib plate 8 and a third rib plate 9 which are required by manufacturing the crane beam body, wherein each plate is of a planar structure; s2, spot welding assembly: the first rib plates 6 are arranged on the inner side surfaces of the bottom plates 4, are spot-welded to form a bottom plate assembly, the second rib plates 8 are arranged on the inner side surfaces of the left and right webs 2, are spot-welded to form a web plate assembly, and the third rib plates 9 are vertically and crosswise arranged on the partition plates 3, and are spot-welded to form a partition plate assembly; s3, pretreatment of a cover plate 1: placing the cover plate 1 on a leveling working platform, arranging first rib plates 6 on one side of the cover plate 1 in the width direction side by side, and spot-welding the first rib plates 6 on the cover plate 1 along the length direction of the beam body; s4, spot mounting of a partition board 3: the partition board assembly is arranged on the cover board 1 in an inverted mode, and a first rib plate 6 on the cover board 1 is arranged in a rib plate groove 7 on one side of the partition board 3; then, attaching the baffle plate assembly and one side of the cover plate 1, and spot welding the baffle plate assembly and the cover plate along the length direction of the beam body; s5, spot mounting of the same-side web plates 2: the web plate component on one side of the beam body is installed on one side of the partition plate component in a spot mode, the web plate 2 is connected with the cover plate 1 and the partition plate component, and a connecting welding seam between the web plate 2 and the cover plate 1 is welded; s6, preassembling rib plates: a first rib plate 6 which is not spot welded on the other side of the width direction of the cover plate 1 is arranged in a rib plate groove 7 on the other side of the partition plate 3; s7, bending the cover plate 1: bending the other side of the cover plate 1 in the width direction to form a herringbone structure cover plate 1, enabling the other side of the herringbone structure cover plate 1 to be attached to the partition plate assembly, and then fixing the other side of the herringbone structure cover plate 1 and each partition plate assembly through spot welding; s8, fixing rib plates: the first rib plate 6 preassembled in the rib plate groove 7 on the other side of the partition plate 3 is spot-welded with the other side of the cover plate 1 to realize position fixing; s9, spot mounting of the opposite side web plates 2: the web plate component on the other side of the beam body is installed on the other side of the partition plate component in a spot mode, so that the web plate 2 on the other side is connected with the cover plate 1 and the partition plate component, and a connecting welding seam between the web plate 2 and the cover plate 1 on the other side is welded; s10, sealing a beam body: and supporting the two molded side inclined planes of the herringbone structure cover plate 1 to be in a correcting state, then arranging the bottom plate component between the two web components and supporting the bottom plate component with the partition board component, enabling the bottom plate component to be in spot welding connection with each component to form a box-shaped structure with a closed section, and then welding inner and outer welding seams at the connecting positions of each component to finish the manufacturing of the crane girder.

Specifically, in the embodiment of the present utility model, in step S7, the manner in which the cover plate 1 is bent includes: the device is bent and the wedge 11 is forced to bend.

The technical scheme of the manufacturing method of the crane beam body provided by the utility model is specifically described below by combining different bending modes of the cover plate 1 with specific embodiments.

Embodiment one:

in this embodiment, the cover plate 1 is provided with a tensioning device 10 to bend the cover plate 1.

In this embodiment, the method for manufacturing the crane beam body includes:

s1, material configuration: the cover plate 1, the bottom plate 4, the left web plate 2, the right web plate 2, the first rib plate 6, the second rib plate 8 and the third rib plate 9 which are arranged on each plate are all of a plane structure and are needed for manufacturing the crane beam body.

The crane beam body is a large beam body suitable for mines and wharfs, the width of the beam body is more than 4 meters, the height of the beam body is more than 3 meters, the thickness of the cover plate 1, the bottom plate 4 and the left and right webs 2 is more than 25mm, the length of the beam body is more than 30 meters, and the total weight of the beam body is more than 200 tons.

S2, spot welding assembly: the first rib plates 6 are arranged on the inner side surfaces of the bottom plates 4, spot-welded into bottom plate assemblies, the second rib plates 8 are arranged on the inner side surfaces of the left and right webs 2, spot-welded into web assemblies, and the third rib plates 9 are vertically and crosswise arranged on the partition plates 3, and spot-welded into partition plate assemblies.

Wherein, this step is used for setting up the reinforcing plate 5 on every plate, in order to strengthen the bearing capacity of the beam body; the whole pentagonal structure that is "yurt" form of baffle subassembly, its two hypotenuses accept apron 1, as shown in fig. 4, fig. 4 is the structural schematic diagram of spot welding baffle subassembly.

S3, pretreatment of a cover plate 1: and placing the cover plate 1 on a leveling working platform, arranging the first rib plates 6 on one side of the cover plate 1 in the width direction side by side, and spot-welding the first rib plates 6 on the cover plate 1 along the length direction of the beam body.

The pretreatment of the cover plate 1 is shown in fig. 5, and after the cover plate 1 is placed on a platform, the first rib plate 6 is additionally arranged on one side.

S4, spot mounting of a partition board 3: the partition board assembly is arranged on the cover board 1 in an inverted mode, and a first rib plate 6 on the cover board 1 is arranged in a rib plate groove 7 on one side of the partition board 3; and then, attaching the baffle plate assembly and one side of the cover plate 1, and spot welding the baffle plate assembly and the cover plate 1 along the length direction of the beam body.

In step S4, the side of the spacer assembly, that is, the one inclined side of the spacer assembly, after half of the first rib plates 6 are installed, is welded to the side of the cover assembly in the width direction, as shown in fig. 6.

S5, spot mounting of the same-side web plates 2: and (3) spot-mounting a web plate assembly on one side of the beam body on one side of the baffle plate assembly, connecting the web plate 2 with the cover plate 1 and the baffle plate assembly, and welding a connecting welding seam between the web plate 2 and the cover plate 1.

After the spot welding of one side of the spacer assembly and the cover assembly is completed, in step S5, the web assembly on one side of the beam body is spot welded, and in this embodiment, the web assembly on the left side is spot welded, as shown in fig. 7.

Specifically, in the embodiment of the present utility model, the welding manner of the connecting weld seam between the web 2 and the cover plate 1 is specifically: the interval of the connecting weld between the web plate 2 and the cover plate 1 is 500-800 mm, and the welding is 100mm.

S6, preassembling rib plates: and a first rib plate 6 which is not spot welded on the other side of the width direction of the cover plate 1 is arranged in a rib plate groove 7 on the other side of the partition plate 3.

S7, bending the cover plate 1: and bending the other side of the cover plate 1 in the width direction to form a herringbone structure cover plate 1, enabling the other side of the herringbone structure cover plate 1 to be attached to the partition plate assembly, and then fixing the other side of the herringbone structure cover plate 1 and each partition plate assembly through spot welding.

In this embodiment, the cover plate 1 is bent by means of a bending device.

Specifically, in a specific embodiment of the present utility model, the bending step of the device includes: step one, cushion blocks are arranged below a cover plate 1 corresponding to the preset partition plate assembly and on two sides of the cover plate 1, wherein the cushion blocks are spaced from the cover plate 1 by a preset distance, so that the end part of the cover plate 1 is separated from a working platform; step two, arranging a tensioning device 10 between the padded cover plate 1 and the web plate 2 after spot welding of one side of the beam body, wherein the tensioning device 10, the web plate 2 and the cover plate 1 form a triangle in the cross section direction of the beam body; heating in a fixed width range of the middle position of the cover plate 1 in the width direction, namely heating in a fixed width range of a bending position of the plate surface of the cover plate 1, wherein the heating sequence is carried out from the left side and the right side of the preset partition plate assembly; and fourthly, heating and adjusting the adjusting sequence of the tensioning device 10 and the heating sequence of the cover plate 1 simultaneously, so that the inner side surface of the cover plate 1 is attached to the baffle plate assemblies, the cover plate 1 and each baffle plate assembly are firmly spot-welded, and the cover plate 1 is bent.

In particular, in a specific embodiment of the utility model, the tensioning device 10 is provided in a plurality of pieces, preferably four pieces; the tensioning devices 10 are arranged in a group, and each group of two tensioning devices 10 are spaced from each other and symmetrically arranged on two sides of the preset partition plate assembly; the first group of the tensioning devices 10 is at a distance L1 from the predetermined diaphragm assembly, wherein L1 is 5-12 times the thickness of the cover plate 1; the second set of said tensioning devices 10 is spaced from said predetermined spacer assemblies by a distance L2, wherein the thickness of the L2 cover plate 1 is more than 15 times and no more than half the spacing of the two spacer assemblies; the heating temperature is 300-600 ℃ within the fixed width range of the bending part of the cover plate surface, and the fixed width range is specifically 2-4 times of the thickness of the cover plate.

As shown in fig. 8 and 9, fig. 8 and 9 are schematic structural views of bending the cover plate 1 by the tensioning device 10; in this embodiment, the partition plate assembly is predetermined to be a B partition plate assembly, and the widthwise intermediate position of the cover plate 1 is at a. In the third step, the middle position of the upper cover plate 1 in the width direction is heated, the length of the middle position is L2+100 or L2-300mm in the width range of the position A, and the middle position does not exceed the range of the adjacent baffle plate assemblies on the left and right sides of the baffle plate assemblies B, and the heating sequence is performed on the left and right sides from the position of the baffle plate 3 on the B.

In particular, in a specific embodiment of the utility model, the tensioning device 10 is a device which can be tightened towards the middle, particularly preferably a chain block or an adjustable screw nut set.

In the fourth step, the spot welding of each partition plate assembly and the cover plate 1 is specifically performed from the middle position of the beam body to two sides or from one end of the beam body to the other end, and preferably from the middle of the beam body to two sides.

S8, fixing rib plates: and spot-assembling and welding the first rib plate 6 preassembled in the rib plate groove 7 at the other side of the partition plate 3 and the other side of the cover plate 1 to realize position fixing.

S9, spot mounting of the opposite side web plates 2: and the web plate component on the other side of the beam body is spot-mounted on the other side of the baffle plate component, so that the web plate 2 on the other side is connected with the cover plate 1 and the baffle plate component, and a connecting welding seam between the web plate 2 and the cover plate 1 on the other side is welded.

After the other side spot welding of the spacer assembly and the cover assembly is completed, the web assembly on the other side of the beam body, i.e., the opposite-side web assembly, is then spot welded, as shown in fig. 10, and in this embodiment, the opposite-side web assembly is the right-side web assembly.

S10, sealing a beam body: and supporting the two molded side inclined planes of the herringbone structure cover plate 1 to be in a correcting state, then arranging the bottom plate component between the two web components and supporting the bottom plate component with the partition board component, enabling the bottom plate component to be in spot welding connection with each component to form a box-shaped structure with a closed section, and then welding inner and outer welding seams at the connecting positions of each component to finish the manufacturing of the crane girder.

In this embodiment, the cushion blocks are adopted to support the two molded side inclined planes of the beam cover plate 1, so that the beam is in a righting state, the beam cover plate 1 is arranged between two web components and supported by the baffle components, and is connected with the web components and the baffle components to form a box-shaped structure with a closed section, as shown in fig. 11; in step S10, the beam body diaphragm assembly, the web assembly, the cover plate 1, and the inner and outer welds at each connection position on the bottom plate assembly are welded after the welded welds are in a horizontal state by using a turnover device.

Embodiment two:

in this embodiment, the cover plate 1 is bent by providing a wedge 11 thereunder, and then by applying pressure to the wedge 11.

In this embodiment, the method for manufacturing the crane beam body includes:

In this embodiment, the bending of the cover plate 1 adopts a manner that the wedge block 11 is forced to bend.

Specifically, in the embodiment of the present utility model, the step of force bending the wedge 11 includes: step one, wedge-shaped blocks 11 are arranged on two sides, which are spaced from the position by a preset distance, of the lower part of the cover plate 1 corresponding to the preset baffle plate assembly; heating in a fixed width range of the middle position of the width direction of the cover plate 1, namely heating in a fixed width range of a bending position of the plate surface of the cover plate 1, wherein the heating sequence is carried out from the left side and the right side of the preset partition plate assembly; and thirdly, heating, applying external force perpendicular to the length direction of the beam body to each wedge-shaped block 11 below the cover plate 1, and applying the external force to the cover plate 1 in the same heating sequence as the cover plate 1, so that the inner side surface of the cover plate 1 is attached to the baffle plate assembly, and then firmly spot-welding the cover plate 1 and the baffle plate assembly to complete bending of the cover plate 1.

In particular, in a specific embodiment of the utility model, the wedge 11 is provided in a plurality of pieces, preferably five pieces; the four parts are divided into two groups except one part under the cover plate 1 at the corresponding position of the preset partition plate assembly, and two wedge blocks 11 of each group are mutually spaced and symmetrically arranged at two sides of the preset partition plate assembly; the distance between the first group of wedge-shaped blocks 11 and the preset partition plate assembly is L1, wherein L1 is 5-12 times of the thickness of the cover plate 1; the distance between the second group of wedge-shaped blocks 11 and the preset baffle plate assembly is L2, wherein the thickness of the L2 cover plate 1 is more than 15 times and is not more than half of the interval between the two baffle plate assemblies; the heating temperature is 300-600 ℃ within the fixed width range of the bending part of the cover plate surface, and the fixed width range is specifically 2-4 times of the thickness of the cover plate.

As shown in fig. 12 and 13, fig. 12 and 13 are schematic structural views of bending the cover plate 1 by the wedge-shaped block 11; in this embodiment, the partition plate assembly is predetermined to be a B partition plate assembly, and the widthwise intermediate position of the cover plate 1 is at a. In the third step, the middle position of the upper cover plate 1 in the width direction is heated, the length of the middle position is L2+100 or L2-300mm in the width range of the position A, and the middle position does not exceed the range of the adjacent baffle plate assemblies on the left and right sides of the baffle plate assemblies B, and the heating sequence is performed on the left and right sides from the position of the baffle plate 3 on the B.

In view of the foregoing, the embodiment of the present utility model relates to a crane beam body and a method for manufacturing the crane beam body, wherein a structural body of the crane beam body is composed of the cover plate 1, the bottom plate 4, the left and right webs 2 and the reinforcing rib plates 5; the key lies in the apron 1, in its cross section direction the height of apron 1 both sides end is less than the height of its middle position, makes apron 1 wholly be the chevron shape structure, can make the dust impurity in the operational environment be difficult for piling up on the chevron shape structure apron 1, and the cleaning of being convenient for can improve the life of hoist roof beam body. Therefore, compared with the prior art, the crane beam body can ensure that rainwater and dust are not easy to accumulate on the beam body cover plate 1, is convenient to clean and prolongs the service life of equipment; in the manufacturing and welding of the crane beam, the herringbone structural cover plate 1 is formed by bending a steel plate along the length direction, and the bottom plate 4 and the left and right webs 2 are combined to form the beam with the cross section of a yurt shape, so that the welding amount and welding deformation can be reduced, the quality problem caused by welding reasons can be solved, and the quality of the beam can be ensured.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crane beam, comprising:

the heights of the two side ends of the cover plate in the width direction of the cross section of the beam body are lower than the height of the central position of the cover plate;

the webs are arranged at the two side ends of the cover plate;

the partition plates are arranged between the webs in parallel along the length direction of the beam body;

the bottom plate is arranged at the bottom of the partition plate, and two ends of the bottom plate are connected with the web plate;

reinforcing rib plates arranged on the webs and the partition plates.

2. The crane beam according to claim 1, wherein the cover plate has a herringbone structure in a beam cross-sectional direction;

3. The crane girder according to claim 2, wherein the herringbone structure is integrally formed, and the angle between the lowest points of the two sides and the horizontal plane is 4-8 degrees.

4. The crane beam assembly of claim 1 wherein the reinforcing web comprises:

and the second rib plate is arranged on the inner side surface of the web plate.

5. The crane beam assembly of claim 4 wherein the reinforcing web further comprises: and the third rib plates are arranged on the partition board in a crisscross manner.

6. The crane beam according to claim 1, wherein the base plate, the cover plate and the web enclose a pentagonal structure having a yurt-like cross section.