CN110467114B - Portal crane traversing mechanism and construction method - Google Patents
Portal crane traversing mechanism and construction method Download PDFInfo
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- CN110467114B CN110467114B CN201910857106.6A CN201910857106A CN110467114B CN 110467114 B CN110467114 B CN 110467114B CN 201910857106 A CN201910857106 A CN 201910857106A CN 110467114 B CN110467114 B CN 110467114B
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- production line
- crane
- walking
- portal crane
- rail
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 99
- 238000000034 method Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 15
- 238000009417 prefabrication Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 206010012411 Derailment Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
Abstract
A portal crane sideslip mechanism and construction method, the construction method includes moving the first portal crane on the first production line longitudinally to the sideslip orbit, then turn into transversely, walk to the end of the adjacent second production line and on the extension far away from first production line, in order to vacate the common rail orbit; longitudinally moving a second portal crane positioned on the first production line to a traversing rail and walking to an extension section far away from the second production line; transversely moving the first portal crane to the end part of the second production line, turning into the longitudinal direction, and walking to the second production line; and transversely moving the second portal crane to the end part of the second production line, turning into the longitudinal direction, and walking to the second production line to finish transverse movement. The invention not only can save the occupied area of the production line, but also can improve the traversing efficiency of the sliding template and the portal crane, shorten the traversing period, simplify the working flow and operation, reduce the personnel investment, improve the traversing safety and reduce the safety risk.
Description
Technical Field
The invention relates to the technical field of engineering, in particular to a gantry crane traversing mechanism and a construction method.
Background
Caisson prefabrication is a common construction content in water engineering, the common construction equipment for caisson prefabrication is a portal crane, the occupied area is large, in some projects with limited places, the prefabrication process becomes complex, the cost investment is large, the efficacy is low, and the safety risk is high, so that a reasonable place planning and an effective construction method are urgently needed to solve the problems.
In caisson prefabrication construction, after the gantry crane finishes 1 production line caisson prefabrication, the gantry crane needs to transversely move to a 2 nd production line to perform next caisson prefabrication construction. In the traditional process, after a sliding template finishes traversing and longitudinally shifting successively, when a traversing operation surface of a gantry crane is provided, two gantry crane travelling rails are temporarily erected by using a steel bar head, when the original ground height difference is large, a steel plate support pad is used for reserving and preparing a 1m rail at the crossing position of the longitudinal traversing gantry crane rails, then a 25T automobile is used for lifting a single supporting leg of the gantry crane to leave the ground for about 30cm, the traversing rail at the crossing position of the longitudinal traversing gantry crane rails is timely installed, the travelling trolleys are rotated by 90 degrees, 4 trolley steering and temporary rail erection are finished one by one according to the same method, finally, the gantry crane is traversed, and after the gantry crane is walked to a 2 nd production line to be in place, the travelling trolleys are turned by 90 degrees again by repeating the processes, and the normal use running state of the gantry crane is recovered. And finally, dismantling the traversing rail, and traversing the next portal crane according to the same method, wherein the time for completing one traversing is 6 days, and the labor is required to be input for 24 working days. Obviously, the gantry crane in the traditional construction has large use area, and in some projects with limited sites, the prefabrication process becomes complex, the cost investment is large, the efficacy is low, and the safety risk is high. In addition, the traditional process is used for erecting a temporary simple track, so that the temporary track is not erected normally due to short track laying time, simple reinforcement mode, uneven track foundation and the like, and the safety risk of derailment or overturning of the crane in the traversing process exists; and lifting the gantry crane landing leg through the automobile crane does not accord with the safety operation regulations of hoisting equipment, and has great potential safety hazard. Therefore, an economical and reliable method for guiding the site construction is urgently needed for the transverse movement of the large-scale prefabricated field portal crane.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides the gantry crane traversing mechanism and the construction method, which can save the occupied area of a production line, improve the traversing efficiency, shorten the construction period and reduce the safety risk.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a portal crane sideslip mechanism, includes adjacent setting along longitudinal extension's a plurality of production lines, the both sides of production line are equipped with fore-and-aft walking track, are equipped with fore-and-aft common rail track between two adjacent production lines, and at least one portal crane is in walking track with move on the common rail track, the tip of production line is equipped with along lateral extension's sideslip track for supply portal crane to follow a production line lateral shifting to adjacent another production line, the both ends of sideslip track are equipped with the extension, when a plurality of portal cranes sideslip, at least one portal crane removes to in the extension, in order to vacate the common rail track.
Further, the gantry crane comprises a traveling cart and supporting legs, wherein the traveling cart longitudinally moves on the traveling rail and the common rail and transversely moves on the transverse rail.
Further, the landing leg is provided with a hydraulic jack, and the gantry crane is lifted through the hydraulic jack.
Further, a vehicle bumper is arranged at the end part of the walking track and used for limiting the movement of the walking cart.
Further, the bottom of the walking rail and the bottom of the common rail are provided with rail foundations for supporting the walking rail and the common rail.
Further, the production line is also provided with a sliding template, and the sliding template is provided with a transverse moving roller for enabling the sliding template to directly move transversely from one production line to another adjacent production line.
Further, the sliding template comprises a template trolley, and the template trolley is connected with a plurality of transverse moving rollers through flanges.
The construction method based on the portal crane traversing mechanism comprises the following steps:
step one: longitudinally moving a first portal crane positioned on a first production line onto the transverse rail, then turning into a transverse direction, and walking onto the end part of an adjacent second production line and the extension section far away from the first production line so as to free the common rail;
step two: longitudinally moving a second gantry crane located on a first production line to the traversing rail and concurrently onto the extension segment remote from the second production line;
step three: transversely moving a first portal crane to the end part of the second production line, turning into a longitudinal direction, and walking to the second production line;
step four: and transversely moving the second portal crane to the end part of the second production line, turning into the longitudinal direction, and walking to the second production line to finish transverse movement.
Further, the first portal crane and the second portal crane respectively comprise a traveling cart and a supporting leg, and when the first portal crane or the second portal crane turns, the supporting leg is lifted first, and then the traveling cart turns.
Further, while the first portal crane or the second portal crane is traversing, the sliding template on the first production line is traversing directly from the first production line to the second production line through traversing rollers.
The invention has the beneficial effects that:
the longitudinal common rail track is arranged between adjacent production lines, the problem of site limitation can be effectively overcome, the transverse rail track extending transversely is arranged at the end part of the production line, so that the gantry crane can transversely move from one production line to the adjacent other production line, the transverse movement time is short, the efficiency is high, the sliding template can directly transversely move, the transverse movement of the gantry crane can be synchronous, the construction process is simplified, the time consumption of line crossing production is shortened, the extension sections are arranged at the two ends of the transverse rail track, and the gantry crane is accommodated by the extension sections when the gantry crane transversely moves so as to vacate the common rail track, so that the plurality of gantry cranes can effectively carry out transverse movement construction.
Drawings
FIG. 1 is a schematic diagram of a traversing mechanism of a gantry crane according to the present invention;
FIG. 2 is a schematic cross-sectional view of a gantry traversing mechanism of the present invention;
FIG. 3 is a schematic view of a traversing mechanism of the gantry crane of the present invention before traversing;
FIG. 4 is a first gantry traversing schematic diagram of the gantry traversing mechanism of the present invention;
FIG. 5 is a cross-sectional view of a second gantry crane in the gantry crane cross-sectional mechanism of the present invention;
FIG. 6 is a schematic diagram of a first gantry crane moving to a second production line in the traversing mechanism of the gantry crane of the present invention;
FIG. 7 is a schematic diagram of the traversing completion of the traversing mechanism of the gantry crane of the present invention.
In the figure, a first production line, a second production line, a first 3-portal crane, a second 4-portal crane, a 5-walking rail, a 6-common rail, a 7-traversing rail, an 8-extension section, a 9-walking cart, a 10-supporting leg, a 11-hydraulic jack, a 12-vehicle gear, a 13-rail foundation and a 14-sliding template.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Referring to fig. 1 and 3, the present invention provides a gantry crane traversing mechanism, which includes a plurality of production lines disposed adjacently and extending in a longitudinal direction, and in this embodiment, at least includes a first production line 1 and a second production line 2 that are adjacent. The two sides of the production line are provided with longitudinal running rails 5, a longitudinal common rail 6 is arranged between two adjacent production lines, at least one gantry crane longitudinally moves on the running rails 5 and the common rail 6, and in the embodiment, the first gantry crane 3 and the second gantry crane 4 move on the same production line. The common rail of the two production lines can effectively utilize construction sites, meet the prefabrication requirements of a plurality of caissons and effectively solve the problem of site limitation. The end of the production line is provided with a transverse moving track 7 extending transversely, the transverse moving track 7 is used for allowing the gantry cranes to transversely move from the production line to another adjacent production line, the two ends of the transverse moving track 7 are provided with extension sections 8, when the gantry cranes transversely move, at least one gantry crane moves into the extension sections 8 to vacate the common rail track 6, so that the gantry cranes can effectively carry out transverse moving construction, mutual interference during transverse moving is avoided, and transverse moving efficiency is improved.
As shown in fig. 1 and 2, the gantry crane includes a traveling carriage 9 and a leg 10, and the traveling carriage 9 moves longitudinally on the traveling rail 5 and the common rail 6 and moves laterally on the traversing rail 7. The landing leg 10 is equipped with hydraulic jack 11, through hydraulic jack 11 jack gantry crane, adopts hydraulic jack 11 to ban traditional automobile crane auxiliary lifting, and the reliability is strong, and the security risk is little. The end of the travelling rail 5 is provided with a bumper 12 for restricting the longitudinal movement of the travelling cart 9 and preventing excessive displacement. The bottom of the walking track 5 and the bottom of the common track 6 are provided with track foundations 13 for supporting the walking track 5 and the common track 6, and the walking track 5, the common track 6 and the transverse track 7 are fixed permanent tracks, so that the track foundations 13 are reliable, the track height difference is small once and for all, and the operation is standard and safe.
As shown in fig. 3, the production line is further provided with a sliding template 14, and the sliding template 14 is provided with a traversing roller for allowing the sliding template to traverse directly from one production line to another adjacent production line. In this embodiment, the slip form 14 includes a form trolley having a plurality of traversing rollers connected by flanges. The template trolley is directly connected with the flange, the time consumption is short, the efficiency is high, the traversing roller drives the template trolley to move fast, the risk is small, the sliding lifting template 14 only needs to traverse, the traversing of the portal crane is not mutually limited, the traversing of the template trolley and the portal crane can be synchronously carried out, and the time consumption of the overline production is shortened.
The invention not only can save the floor space of the production line, but also can improve the traversing efficiency of the sliding template 14 and the gantry crane, shorten the traversing period, simplify the traversing work flow and operation of the sliding template 14 and the gantry crane, reduce the personnel investment, improve the traversing safety of the sliding template 14 and the gantry crane, reduce the safety risk and create favorable conditions for the improvement of the prefabricated progress of the caisson.
The invention also provides a construction method based on the portal crane traversing mechanism, which comprises the following steps:
step one: as shown in fig. 3 and 4, the first gantry crane 3 on the first production line 1 is moved longitudinally onto the traversing rail 7 and then turned to traverse, and walks onto the end of the adjacent second production line 2 and the extension 8 away from the first production line 1 to vacate the common rail 6.
Step two: as shown in fig. 5, the second gantry crane 4 located on the first production line 1 is moved longitudinally to the traversing rail 7 and walks onto the extension 8 remote from the second production line 2.
Step three: as shown in fig. 6, the first gantry crane 3 is moved laterally to the end of the second production line 2, turned to the longitudinal direction, and walked onto the second production line 2.
Step four: as shown in fig. 7, the second gantry crane 4 is moved laterally to the end of the second production line 2, turned to the longitudinal direction, and moved to the second production line 2 to complete the traversing.
Preferably, the first gantry crane 3 and the second gantry crane 4 comprise a travelling cart 9 and a leg 10, respectively, and when the first gantry crane 3 or the second gantry crane 4 is turned, the leg 10 is lifted first and then the travelling cart 9 is turned. While the first portal crane 3 or the second portal crane 4 transversely moves, the sliding template 14 positioned on the first production line 1 is directly transversely moved from the first production line 1 to the second production line 2 through the transverse moving roller, and the transverse moving of the first portal crane 3 or the second portal crane 4 can be synchronously performed without sharing the transverse moving rail 7 with the portal crane, so that the time consumption of the line-crossing production is shortened.
By means of the method, the portal crane is transversely moved, 1.5 days are required for completing construction of one transverse movement, 8 labor days are required, and compared with the traditional process which takes 6 hours and 24 labor days, the portal crane is 400% in work efficiency and 67% in labor reduction rate. Taking 38 caissons in a general wharf project as an example, carrying out prefabrication on two production lines in batches of 6, adopting the invention to transversely move the sliding template and the gantry crane 5 times, and shortening the construction period by 22.5 days in an accumulated way. The invention improves the traditional method of transversely moving the sliding template and the gantry crane at the template position, converts the directional thinking of firstly moving the template and then moving the gantry crane, and is a innovation of the transversely moving construction method of the gantry crane in caisson prefabrication.
Compared with the traditional process, the invention has the following advantages:
(1) The temporary track is manufactured in the traditional process, the reinforcement is long in time consumption, the track height difference is large, the reliability is not high and standard; the invention is provided with the permanent transverse moving rail 7, the rail foundation 13 is reliable, the rail height difference is small once and for all, and the operation is standard and safe.
(2) The prefabricated floor area of the caisson in the traditional process is large; the adjacent production lines adopt the common rail operation of the common rail track 6 in the middle, so that the construction site can be effectively utilized, the occupied area is saved, the common rail track 6 can be vacated by transferring through the extension section 8 during the transverse movement, the mutual interference during the transverse movement is avoided, and the transverse movement efficiency is improved.
(3) The template trolley in the traditional process is long in reinforcement time, the welding and reinforcement workload is large, and the safety risk of moving the air bags is high; the template trolley is connected through the flange, so that the time consumption is short, the efficacy is high, the traversing roller drives the template trolley to move quickly, and the risk is low.
(4) In the traditional process, the sliding template 14 needs to move horizontally and longitudinally again to provide a working surface for the horizontal movement of the gantry crane, so that the horizontal movement association between the gantry crane and the sliding template 14 is strong and cannot be synchronized; according to the invention, the sliding of the sliding template 14 is only needed, and the sliding of the sliding template 14 and the sliding of the portal crane are not mutually limited, so that synchronous operation can be performed, and the time consumption for generating the crossing line is directly shortened.
(5) In the traditional process, an automobile crane is adopted to assist in lifting the gantry crane, and the landing leg has high steering risk; the hydraulic jack 11 is adopted to jack the gantry crane, so that the reliability is high, and the safety risk is low.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, 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 present invention, which is intended to be covered by the claims of the present invention.
Claims (1)
1. A gantry crane traversing mechanism, comprising: a plurality of production lines extending along the longitudinal direction are adjacently arranged, and at least comprise a first production line and a second production line which are adjacent; the two sides of the production line are provided with longitudinal walking rails, a longitudinal common rail is arranged between two adjacent production lines, at least one gantry crane moves on the walking rails and the common rail, the end part of the production line is provided with a transverse moving rail extending transversely and used for the gantry crane to transversely move from one production line to another adjacent production line, the two ends of the transverse moving rail are provided with extension sections, and when a plurality of gantry cranes transversely move, at least one gantry crane moves into the extension sections to vacate the common rail, wherein the first gantry crane and the second gantry crane move on the same production line; the common rail of the two production lines meets the prefabrication requirement of a plurality of caissons by using a construction site, and overcomes the limitation of the site;
the gantry crane comprises a traveling cart and supporting legs, wherein the traveling cart longitudinally moves on the traveling rail and the common rail and transversely moves on the transverse rail; the landing leg is provided with a hydraulic jack, and the gantry crane is lifted by the hydraulic jack; the end part of the walking rail is provided with a vehicle stop for limiting the movement of the walking cart; track foundations are arranged at the bottoms of the walking track and the common rail track and are used for supporting the walking track and the common rail track; the production line is also provided with a sliding template, and the sliding template is provided with a transverse moving roller for enabling the sliding template to directly transversely move from one production line to another adjacent production line; the sliding template comprises a template trolley which is connected with a plurality of transverse moving rollers through flanges;
the portal crane traversing mechanism solves the problem of site limitation by adopting the following method, simplifies the construction process and shortens the time consumption of line crossing production, and the method comprises the following steps:
longitudinally moving a first portal crane positioned on a first production line onto the transverse rail, then turning into a transverse direction, and walking onto the end part of an adjacent second production line and the extension section far away from the first production line so as to free the common rail; longitudinally moving a second gantry crane located on a first production line to the traversing rail and concurrently onto the extension segment remote from the second production line; transversely moving a first portal crane to the end part of the second production line, turning into a longitudinal direction, and walking to the second production line; transversely moving the second portal crane to the end part of the second production line, turning into the longitudinal direction, and walking to the second production line to finish transverse movement;
the first portal crane and the second portal crane respectively comprise a walking cart and supporting legs, when the first portal crane or the second portal crane turns, the supporting legs are lifted firstly, and then the walking cart turns; while the first portal crane or the second portal crane transversely moves, the sliding template on the first production line directly transversely moves from the first production line to the second production line through the transverse moving roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857106.6A CN110467114B (en) | 2019-09-11 | 2019-09-11 | Portal crane traversing mechanism and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857106.6A CN110467114B (en) | 2019-09-11 | 2019-09-11 | Portal crane traversing mechanism and construction method |
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| Publication Number | Publication Date |
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| CN110467114A CN110467114A (en) | 2019-11-19 |
| CN110467114B true CN110467114B (en) | 2023-11-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009242084A (en) * | 2008-03-31 | 2009-10-22 | Mitsui Eng & Shipbuild Co Ltd | Block moving method and apparatus by single turntable of rail mount type portal crane |
| JP2013035666A (en) * | 2011-08-09 | 2013-02-21 | Taihei Dengyo Kaisha Ltd | Portal traveling crane |
| CN107428467A (en) * | 2015-04-15 | 2017-12-01 | 奥卡多创新有限公司 | Automatic container processing equipment and method |
| CN210884988U (en) * | 2019-09-11 | 2020-06-30 | 中交第四航务工程局有限公司 | Transverse moving mechanism of gantry crane |
-
2019
- 2019-09-11 CN CN201910857106.6A patent/CN110467114B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009242084A (en) * | 2008-03-31 | 2009-10-22 | Mitsui Eng & Shipbuild Co Ltd | Block moving method and apparatus by single turntable of rail mount type portal crane |
| JP2013035666A (en) * | 2011-08-09 | 2013-02-21 | Taihei Dengyo Kaisha Ltd | Portal traveling crane |
| CN107428467A (en) * | 2015-04-15 | 2017-12-01 | 奥卡多创新有限公司 | Automatic container processing equipment and method |
| CN210884988U (en) * | 2019-09-11 | 2020-06-30 | 中交第四航务工程局有限公司 | Transverse moving mechanism of gantry crane |
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| CN110467114A (en) | 2019-11-19 |
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