CN204265251U - A kind of bridge crane and box beam thereof - Google Patents
A kind of bridge crane and box beam thereof Download PDFInfo
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- CN204265251U CN204265251U CN201420742123.8U CN201420742123U CN204265251U CN 204265251 U CN204265251 U CN 204265251U CN 201420742123 U CN201420742123 U CN 201420742123U CN 204265251 U CN204265251 U CN 204265251U
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- box beam
- lower cover
- stiffening profile
- web
- main body
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Abstract
The utility model discloses a kind of bridge crane and box beam thereof.In box beam, two pleurosternal sides are in opposite directions fixed with the stiffening profile be in case beam main body respectively, the downside of stiffening profile is fixed on the upper face of lower cover, when carrying out being welded of whole box beam, the mode connected by transition between lower cover and web is played the effect of reinforcement by stiffening profile, link into an integrated entity to make web and lower cover, the buckling deformation of web is offset by the rigidity of stiffening profile self, thus improve the ability of the lower edge opposing buckling deformation of web, decrease in the process of being welded, the distortion of the part of web between adjacent large gusset, so just can ensure that box beam can not produce distortion in the process of being welded, whole box beam tensile strength under simultaneously also improving loading conditions, the load-carrying capacity of box beam is significantly improved, also make the box beam difficulty that is welded significantly reduce simultaneously.
Description
Technical field
The utility model relates to a kind of bridge crane.
Background technology
At present, the girder of the bridge cranes such as mono beam overhead crane, cucurbit transfer crane, cucurbit transfer crane adopts box beam as depicted in figs. 1 and 2 usually, this box beam is welded by upper cover plate 11, web 12, lower cover 13, large gusset 14 and small gusset etc., wherein the quantity of large gusset 14 and small gusset is different and different according to the span of this box beam, but generally, track will be laid on upper cover plate 11, be loaded on upper cover plate 11 to make load.During work, squeezing action power will be born at (comprising whole upper cover plate 11) in the top of whole box beam, drawing force will be born at (comprising whole lower cover 13) in the bottom of whole box beam, and for plate and shell structure, the crush zone of stand under load will than being easier to buckling deformation, therefore in order to ensure upper cover plate 11 and web 12 top stand under load stable and indeformable, usual meeting arranges greatly at the top of box beam, small gusset, wherein the effect of large gusset 14 had both ensured that box beam top stand under load was that pressurized zone is indeformable, take into account the stability of tensile region again, improve the resistance to overturning of box beam.When manufacturing, general operation lays upper cover plate 11 first on the table, secondly on upper cover plate 11, welding is large, small gusset, weld web 12 again, finally weld lower cover 13, and simultaneously in order to alleviate the weight of whole box beam, the spacing of large gusset 14 is generally in 1500mm ~ 2000mm, like this in the process being welded box beam, free state will be in the neutral between adjacent two large gussets 14 of the bottom of web 12, like this under the effect of welding stress, very easily will there is distortion in the free position of web 12, deformation state as shown in Figure 3 and Figure 4, this distortion will being normally welded and causing following defect in using box beam:
1, affect the assembly welding of upper cover plate 11, make to occur the problems such as sealing-off, weld seam are not straight between upper cover plate 11 and web 12, cause the weld strength between upper cover plate 11 and web 12 to reduce;
2, owing to there is this early deformation, so in use, the warpage position of web 12 will become the sensitizing range of stand under load gradient plasticity theory, like this along with after hoisting crane work a period of time, very easily there is the problem of premature breakdown in this part of box beam, reduces the service life of whole box beam;
3, due to the existence of this distortion, so will the surface of uneven be there is on the web 12 of box beam, affect whole box beam, and even the outward appearance of whole bridge crane.
Utility model content
The purpose of this utility model is to provide and a kind ofly reduces the box beam of web in adjacent large gusset neutral position buckling deformation, and meanwhile, the purpose of this utility model is also to provide a kind of bridge crane using this box beam.
In order to realize above object, in the utility model, the technical scheme of box beam is as follows:
Box beam, comprise the case beam main body that upper cover plate and two coxostermums are welded and fixed or are integrally formed by connecting, case beam main body extends before and after being and upside is closed, the casing of open lower side, in case beam main body, time interval is welded with large gusset, in the open lower side of case beam main body, buckle closure is equipped with the lower cover be weldingly fixed on two coxostermum lower edges, two pleurosternal sides are in opposite directions fixed with the stiffening profile be in case beam main body respectively, and the downside of stiffening profile is fixed on the upper face of lower cover.
Stiffening profile is in the below of large gusset and transition is connected between web and lower cover.
The lower edge of large gusset is disposed on the top of stiffening profile.
The lower edge of large gusset is 3/20 ~ 1/2 of the spacing between upper and lower cover plate to the distance of the upper face of lower cover.
Stiffening profile is angle steel, and the outer convex surface of dihedral of angle steel is fitted in the adjacent side of web and lower cover.
The technical scheme of the utility model jackshaft gantry crane is as follows:
Bridge crane, comprise girder and end carriage, girder and/or end carriage are box beam, box beam comprises the case beam main body that upper cover plate and two coxostermums are welded and fixed or are integrally formed by connecting, case beam main body is front and back extension and upside is closed, the casing of open lower side, in case beam main body, time interval is welded with large gusset, in the open lower side of case beam main body, buckle closure is equipped with the lower cover be weldingly fixed on two coxostermum lower edges, two pleurosternal sides are in opposite directions fixed with the stiffening profile be in case beam main body respectively, the downside of stiffening profile is fixed on the upper face of lower cover..
Stiffening profile is in the below of large gusset and transition is connected between web and lower cover.
The lower edge of large gusset is disposed on the top of stiffening profile.
The lower edge of large gusset is 3/20 ~ 1/2 of the spacing between upper and lower cover plate to the distance of the upper face of lower cover.
Stiffening profile is angle steel, and the outer convex surface of dihedral of angle steel is fitted in the adjacent side of web and lower cover.
In the utility model, two pleurosternal sides are in opposite directions fixed with the stiffening profile be in case beam main body respectively, the downside of stiffening profile is fixed on the upper face of lower cover, when carrying out being welded of whole box beam, the mode connected by transition between lower cover and web is played the effect of reinforcement by stiffening profile, link into an integrated entity to make web and lower cover, the buckling deformation of web is offset by the rigidity of stiffening profile self, thus improve the ability of the lower edge opposing buckling deformation of web, decrease in the process of being welded, the distortion of the part of web between adjacent large gusset, so just can ensure that box beam can not produce distortion in the process of being welded, whole box beam tensile strength under simultaneously also improving loading conditions, the load-carrying capacity of box beam is significantly improved, also make the box beam difficulty that is welded significantly reduce simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of box beam in prior art;
Fig. 2 is the A-A cutaway view of box beam in Fig. 1;
Fig. 3 is the distressed structure schematic diagram of box beam under loading conditions in Fig. 1;
Fig. 4 is the birds-eye view of Fig. 3;
Fig. 5 is the structural representation of box beam in the utility model;
Fig. 6 is the B-B cutaway view of box beam in Fig. 5.
Detailed description of the invention
The embodiment of the utility model jackshaft gantry crane: as shown in Figure 5 and Figure 6, the girder of this hoisting crane is box beam, this box beam comprises the case beam main body that upper cover plate 21 and two coxostermums 22 are welded and fixed, case beam main body is front and back extension and upside is closed, the casing of open lower side, in case beam main body, time interval is welded with large gusset 24, in the open lower side of case beam main body, buckle closure is equipped with the lower cover 23 be weldingly fixed on two coxostermum 22 lower edges, the upper face left and right sides edge of lower cover 23 is welded with the stiffening profile be close on the face of plate in opposite directions of two webs 22 respectively, this reinforced rib is angle steel 25, the facade part of the outer convex surface of dihedral of angle steel 25 is close on the face of plate in opposite directions of two webs 22, horizontal surface portion is close on the upper face of lower cover 23, be connected between two webs 22 and lower cover 23 to make angle steel 25 by the mode transition of welding, alternatively lower cover 23 is connected on two webs 22 by two angle steel 25 transition.
Large gusset 24 is the annular plate by two pieces of risers and two pieces of transverse slat alternately butt welding from beginning to end, the upper side edge of large gusset 24 is along being weldingly fixed on the lower face of upper cover plate 21, edge, the left and right sides is weldingly fixed in the lateral plates in opposite directions of two webs 22 respectively, the lower side of large gusset 24 is along the top being disposed on angle steel 25, the lower edge of large gusset 24 is upper to the distance of the upper face of lower cover 23, 3/20 ~ 1/2 of spacing between lower cover 23, the structure that compared to existing technology, large gap between gusset 24 and lower cover 23 is less, in the present embodiment, the whole height of large gusset 24 obviously shortens, through theoretical analysis and facts have proved, no matter the lower length of large gusset 24 is for manufacturing process or hoisting crane use procedure within the specific limits, less for the effect of tensile region web 22 deformation stability, that is the large gusset of suitable shortening 24 does not highly affect the normal use of girder.
The present embodiment increases by two angle steel 25 in the lower edges of web 22, improves web 22 edge non-deformability, can ensure that girder manufacturing process does not produce distortion, improves tensile strength under loading conditions simultaneously.Like this compared with existing common box beam, in the present embodiment, box beam has the following advantages:
1, web 22 lower deformation can be avoided, reduce web 22 wave degree, improve the shop characteristic that girder is manufactured;
2, avoid web 22 to be out of shape, improve the load-carrying capacity of web 22 and whole box beam, also just improve the girder life-span, improve hoisting crane service life;
3, owing to shortening the basic weight balancing increased with increase technique angle steel 25 of raw MAT'L that large gusset 24 highly alleviates, therefore the old and new's structure girder weight remains unchanged, and has and improves the advantage that performance does not increase cost;
4, increase angle steel 25 and improve girder bottom tensile strength, improve the use safety coefficient of girder, namely improve the use safety coefficient of hoisting crane;
5, increasing angle steel 25 avoids web 22 to be out of shape, and saves a large amount of corrected time, reduces labor strength, improves working conditions, and reduces man hour of labour expense and also just improves economic benefit;
6, increase angle steel 25 and avoid distortion, the planeness that improve girder web plate 22 also just improves the presentation quality of girder and the presentation quality of whole hoisting crane accordingly.
In the above-described embodiments, stiffening profile is angle steel, and in other embodiments, this stiffening profile also can use the replacements such as square steel, I-beam section, channel-section steel.
In the above-described embodiments, stiffening profile be in large gusset below and and large gusset interval arrange, in other embodiments, stiffening profile also can be installed on large gusset, namely the assembling of large stiffening profile can be realized by the mode offering groove or through hole on large gusset, so just without the need to shortening the height of large gusset.
In the above-described embodiments, the case beam main body of box beam is welded and fixed by upper cover plate and two webs to form, in other embodiments, this case beam main body also can be integrally be formed by connecting by upper cover plate and two webs, and namely case beam main body is the U-shaped plate body of inblock cast or punching press or bending.
The embodiment of box beam in the utility model: in the present embodiment, the structure of box beam is identical with the structure of box beam in the structure of box beam in above-described embodiment and above-described embodiment, therefore repeats no more.
Claims (10)
1. box beam, comprise the case beam main body that upper cover plate and two coxostermums are welded and fixed or are integrally formed by connecting, case beam main body extends before and after being and upside is closed, the casing of open lower side, in case beam main body, time interval is welded with large gusset, in the open lower side of case beam main body, buckle closure is equipped with the lower cover be weldingly fixed on two coxostermum lower edges, it is characterized in that, two pleurosternal sides are in opposite directions fixed with the stiffening profile be in case beam main body respectively, and the downside of stiffening profile is fixed on the upper face of lower cover.
2. box beam according to claim 1, is characterized in that, stiffening profile is in the below of large gusset and transition is connected between web and lower cover.
3. box beam according to claim 2, is characterized in that, the lower edge of large gusset is disposed on the top of stiffening profile.
4. the box beam according to claim 1 or 2 or 3, is characterized in that, the lower edge of large gusset is 3/20 ~ 1/2 of the spacing between upper and lower cover plate to the distance of the upper face of lower cover.
5. the box beam according to claim 1 or 2 or 3, is characterized in that, stiffening profile is angle steel, and the outer convex surface of dihedral of angle steel is fitted in the adjacent side of web and lower cover.
6. bridge crane, comprise girder and end carriage, girder and/or end carriage are box beam, box beam comprises the case beam main body that upper cover plate and two coxostermums are welded and fixed or are integrally formed by connecting, case beam main body is front and back extension and upside is closed, the casing of open lower side, in case beam main body, time interval is welded with large gusset, in the open lower side of case beam main body, buckle closure is equipped with the lower cover be weldingly fixed on two coxostermum lower edges, it is characterized in that, two pleurosternal sides are in opposite directions fixed with the stiffening profile be in case beam main body respectively, the downside of stiffening profile is fixed on the upper face of lower cover.
7. bridge crane according to claim 6, is characterized in that, stiffening profile is in the below of large gusset and transition is connected between web and lower cover.
8. bridge crane according to claim 7, is characterized in that, the lower edge of large gusset is disposed on the top of stiffening profile.
9. the bridge crane according to claim 6 or 7 or 8, is characterized in that, the lower edge of large gusset is 3/20 ~ 1/2 of the spacing between upper and lower cover plate to the distance of the upper face of lower cover.
10. the bridge crane according to claim 6 or 7 or 8, is characterized in that, stiffening profile is angle steel, and the outer convex surface of dihedral of angle steel is fitted in the adjacent side of web and lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742123.8U CN204265251U (en) | 2014-12-02 | 2014-12-02 | A kind of bridge crane and box beam thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742123.8U CN204265251U (en) | 2014-12-02 | 2014-12-02 | A kind of bridge crane and box beam thereof |
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| Publication Number | Publication Date |
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| CN204265251U true CN204265251U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420742123.8U Expired - Fee Related CN204265251U (en) | 2014-12-02 | 2014-12-02 | A kind of bridge crane and box beam thereof |
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| CN (1) | CN204265251U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384047A (en) * | 2015-12-10 | 2016-03-09 | 润邦卡哥特科工业有限公司 | Cross bearing beam |
| CN108328475A (en) * | 2018-03-05 | 2018-07-27 | 苏州库力铁重工有限公司 | It rises and reuses box beam |
| CN108382987A (en) * | 2017-12-22 | 2018-08-10 | 李乃斌 | A kind of crane main beam structure configuration of stacking pattern up and down |
| CN108755292A (en) * | 2018-07-27 | 2018-11-06 | 中国五冶集团有限公司 | Engaging type steel-concrete combined structure overhead monorail traffic track beam |
| CN109264594A (en) * | 2018-09-06 | 2019-01-25 | 中联重科股份有限公司 | Box beam |
-
2014
- 2014-12-02 CN CN201420742123.8U patent/CN204265251U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384047A (en) * | 2015-12-10 | 2016-03-09 | 润邦卡哥特科工业有限公司 | Cross bearing beam |
| CN108382987A (en) * | 2017-12-22 | 2018-08-10 | 李乃斌 | A kind of crane main beam structure configuration of stacking pattern up and down |
| CN108328475A (en) * | 2018-03-05 | 2018-07-27 | 苏州库力铁重工有限公司 | It rises and reuses box beam |
| CN108755292A (en) * | 2018-07-27 | 2018-11-06 | 中国五冶集团有限公司 | Engaging type steel-concrete combined structure overhead monorail traffic track beam |
| CN108755292B (en) * | 2018-07-27 | 2023-08-22 | 中国五冶集团有限公司 | Toothed steel-concrete combined structure suspended monorail traffic track beam |
| CN109264594A (en) * | 2018-09-06 | 2019-01-25 | 中联重科股份有限公司 | Box beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20161202 |