CN110255358B - Lifting appliance for integrally lifting large gantry crane and lifting use method thereof - Google Patents
Lifting appliance for integrally lifting large gantry crane and lifting use method thereof Download PDFInfo
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- CN110255358B CN110255358B CN201910475659.5A CN201910475659A CN110255358B CN 110255358 B CN110255358 B CN 110255358B CN 201910475659 A CN201910475659 A CN 201910475659A CN 110255358 B CN110255358 B CN 110255358B
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- gantry crane
- lifting
- limiting device
- main beam
- hoisting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
Abstract
The invention relates to a lifting appliance for integrally lifting a large gantry crane and a lifting use method thereof. The carrying pole beam and the brace rod are welded into a frame structure, the transverse limiting device is welded on the main beam of the gantry crane, the longitudinal limiting device is welded above the carrying pole beam, the lifting lug is welded above the carrying pole beam, and the whole lifting appliance is connected with the main beam of the gantry crane through the lifting belt. Compared with the hoisting modes of various gantry cranes, the invention designs the special hoisting tool for hoisting the gantry crane, and the special hoisting tool can be suitable for hoisting large gantry cranes under various conditions. Meanwhile, the gantry crane is hoisted in a hoisting tool mode, the gantry crane can be hoisted by adjusting the corresponding limiting position directly according to the span during use, and the gantry crane is directly dismounted after hoisting is finished, so that the gantry crane can be conveniently dismounted and hoisted, and the gantry crane cannot be damaged and a large amount of labor is consumed.
Description
Technical Field
The invention relates to the technical field of gantry crane hoisting construction, in particular to a hoisting tool for integrally hoisting a large gantry crane and a hoisting using method thereof.
Background
A highway-railway dual-purpose bridge for a quan and a strait is the first highway-railway dual-purpose bridge across straits in China. The strait bridge is different from a previously constructed bay bridge, the construction of the strait bridge is under severe conditions of high wind, wave height, surge, strong typhoon, complex geology and the like, particularly, a pond strait is one of three famous storm sea areas in the world, and huge challenges and ultrahigh risks are brought to the bridge construction. The bridge is the first attempt in the field of cross-channel fjord bridges in China, and the environmental severity, technical challenges and construction risks are far beyond other cross-channel bay bridges built in China or in China. A highway-railway highway bridge with a plunge pool and a strait is a highway-railway highway bridge constructed in a complex storm surge environment for the first time in the world, and the safety operation of the highway bridge under the environment of ten grades of strong winds (land eight-grade wind operation) of an offshore bridge deck can be met after the highway-railway highway bridge is constructed.
At present, when a large gantry crane is used for bridge construction, the problem that the working space of a construction site is narrow can be solved, and the large gantry crane cannot be assembled on the construction site, so that the large gantry crane needs to be integrally assembled at other places, and then the large gantry crane is integrally hoisted to the construction site to be installed in place at one time. However, the large gantry crane is large in overall size, complex in spatial structure and large in tonnage, and the safety and controllability of the integral hoisting need to be considered heavily. At present, the common engineering measures taken for hoisting and constructing a gantry crane in the existing place mainly include the following steps:
welding the lifting lug: a large lifting lug is welded at a proper position of the gantry crane, and a large crane (or a floating crane), a clamping ring and a steel wire rope are adopted for integral hoisting. However, the welding quality requirement of the lifting lug is high, strict calculation is needed, and meanwhile, due to the fact that the dead weight of the clamping ring is large, a welding worker operation platform needs to be welded on the gantry crane, and the whole attractiveness and usability of the gantry crane are affected. In addition, the gantry crane has more times of use and poor weldability. And because need carry out the next time and use, the lug needs to cut off, has some damage to the gantry crane itself.
Lifting the steel wire rope: two ends of a gantry crane are provided with 2 large cranes which are integrally hoisted by adopting 2 groups of steel wire rope pockets. However, the gantry crane can only be assembled on site, and is integrally lifted and installed. The construction site has enough large space, the whole machine can not move for a long distance, the requirement on the command capability of a lifting worker is high, and the danger coefficient is high.
Therefore, there is a need to provide a reliable, efficient, economical and safe sling for hoisting a large gantry crane to solve the above-mentioned problems in construction.
Disclosure of Invention
The invention aims to solve the problems that the gantry crane is damaged or a large space is needed on a construction site in the traditional method for hoisting the large gantry crane, and provides a hoisting tool for integrally hoisting the large gantry crane and a hoisting using method thereof, so that the problems in construction are solved.
The invention is realized by the following technical scheme:
a lifting appliance for integrally lifting a large gantry crane comprises a carrying pole beam, a brace rod, a transverse limiting device, a longitudinal limiting device, a lifting lug and a lifting belt; the carrying pole beam is connected to the end part of the support rod, and the carrying pole beam and the support rod are connected into a frame structure; the transverse limiting device is connected to the main beam of the gantry crane and used for limiting the horizontal displacement of the carrying pole beam of the lifting appliance; the longitudinal limiting device is connected above the shoulder pole beam; the lifting lug is connected above the shoulder pole beam, so that the gantry crane can be conveniently hoisted by penetrating through the steel wire rope; the lifting appliance is connected to a main beam of the gantry crane through a lifting belt.
Preferably, the number of the carrying pole beams is two, and a steel box girder structure is adopted.
Preferably, the struts include transverse struts and longitudinal struts, the transverse struts are connected between the two shoulder-pole beams to form a rectangular frame, and the longitudinal struts are connected between the transverse struts to prevent the transverse struts from deforming.
Preferably, the support rod is a spiral pipe.
Preferably, a rubber skin is filled in a gap between the longitudinal limiting device and the main beam of the gantry crane.
Preferably, the longitudinal limiting device is provided with a lifting lug, the top of the main beam of the gantry crane is also provided with the lifting lug, and two ends of the lifting strip are respectively connected with the lifting lug at the top of the main beam of the gantry crane through the lifting lug on the longitudinal limiting device and a pivot of the lifting lug at the top of the main beam of the gantry crane, so that the carrying pole beam is fixedly connected to the main beam of the gantry crane.
Preferably, the connection is a welded or threaded connection.
The invention also provides a hoisting use method of the hoisting tool for integrally hoisting the large gantry crane, which comprises the following steps:
processing and manufacturing each component of the lifting appliance in a steel structure factory according to related data of a gantry crane to be lifted, and completing assembly of the lifting appliance;
after the hanger is machined, the size of the clamping ring is reasonably selected according to the hoisting weight and the lifting lug hole, the length of the steel wire rope is selected to meet the requirement of the hoisting angle of the gantry crane, the steel wire ropes are used in a matched mode, the hanger is guaranteed to be horizontal after being hoisted, and the hanger is convenient to install;
step three, after the whole assembly of the gantry crane is finished, the installation of the lifting appliance is started; firstly, clamping a longitudinal limiting device on a lifting appliance on a main beam of a gantry crane, filling a gap between the longitudinal limiting device and the main beam of the gantry crane by adopting rubber sheets, fixing a lifting lug at the top of the longitudinal limiting device and a lifting lug at the top of the main beam of the gantry crane by a lifting belt to fix the main beam of the gantry crane by the lifting appliance, and finally welding a limiting transverse limiting device at the lower part of the main beam of the gantry crane to limit a carrying pole beam of the lifting appliance;
and step four, after the lifting appliance is installed, starting to lift the gantry crane, transporting the gantry crane to a construction site, dismantling the lifting appliance, and finishing the hoisting and transporting work of the gantry crane.
The implementation of the invention has the following beneficial effects:
the applicability is strong, and the reliability is high. Compared with the hoisting modes of various gantry cranes, the invention designs the special hoisting tool for hoisting the gantry crane, which is suitable for hoisting large gantry cranes under various conditions.
High use efficiency and economy. The invention adopts a lifting appliance mode for lifting, and the lifting can be carried out by directly adjusting the corresponding limiting position according to the span when in use. The gantry crane is directly dismounted after the hoisting is finished, the gantry crane is convenient to dismount and reverse, and the gantry crane is not damaged and a large amount of labor is not consumed.
And construction safety is better. The invention adopts a lifting appliance mode for lifting, and the safety of the steel box girder adopted by the lifting appliance can be ensured through special design calculation.
Drawings
FIG. 1 is a schematic structural diagram of a spreader for integral hoisting of a large gantry crane according to the present invention in a use state;
fig. 2 is a front view of the spreader;
fig. 3 is a cross-sectional view of the spreader;
fig. 4 is a top view of the spreader.
In the figure: 1, carrying pole beam; 2, a support rod; 3, a transverse limiting device; 4, a longitudinal limiting device; 5, lifting lugs; 6, hanging belts; 7, hanging the main beam of the gantry crane; 21, a transverse supporting rod; 22, a longitudinal stay bar.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 4, a lifting appliance for integrally lifting a large gantry crane according to an embodiment of the present invention includes a carrying pole beam 1, a brace 2, a horizontal limiting device 3, a longitudinal limiting device 4, a lifting eye 5, and a lifting belt 6.
The carrying pole beam 1 is of a steel box beam structure, the number of the carrying pole beams is two, the support rods 2 are spiral tubes and are divided into transverse support rods 21 and longitudinal support rods 22, the transverse support rods 21 are welded between the carrying pole beams 1 to form a rectangular frame, and the longitudinal support rods 22 are welded between the transverse support rods 21.
The transverse limiting device 3 is welded on a main beam 7 of the gantry crane and used for limiting the horizontal displacement of the carrying pole beam of the lifting appliance.
The longitudinal limiting device 4 is welded above the shoulder pole beam, and preferably, a gap between the longitudinal limiting device 4 and the gantry crane main beam 7 is filled with rubber.
The lifting lug 5 is welded above the shoulder pole beam 1, so that the lifting lug can conveniently penetrate through a steel wire rope to lift the gantry crane, and the whole lifting appliance is connected with a gantry crane main beam 7 through the lifting strip 6.
Furthermore, lifting eyes on the longitudinal limiting device 4 are preferably fixed with lifting eyes on the top of a main girder 7 of the portal crane through the hanging strip 6. Alternatively, the fastening may be performed by means of a strap, a threaded connection of a pull rod, or the like.
The embodiment of the invention also provides a specific hoisting use method of the hoisting tool for integrally hoisting the large gantry crane, the hoisting tool is adopted for hoisting the gantry crane, and the hoisting method comprises the following steps:
step one, processing and manufacturing each component of the lifting appliance in a steel structure factory according to the related data of the gantry crane to be lifted, and meanwhile, completing the assembly of the lifting appliance.
And step two, after the hanger is machined, the size of the clamping ring is reasonably selected according to the hanging weight and the lifting lug hole, and the length of the steel wire rope can meet the requirement of the lifting angle of the gantry crane. The steel wire ropes are used in a matched mode, the lifting appliance is guaranteed to be horizontal after being lifted, and the lifting appliance is convenient to install.
And step three, after the whole assembly of the gantry crane is finished, starting to install the lifting appliance. Firstly, a longitudinal limiting device 4 on a lifting appliance is clamped on a main beam 7 of the gantry crane, a gap between the longitudinal limiting device 4 and the main beam 7 of the gantry crane is filled with rubber, then a lifting lug at the top of the longitudinal limiting device 4 is fixed with a lifting lug at the top of the main beam 7 of the gantry crane through a lifting strip 6, the main beam 7 of the gantry crane is fixed by the lifting appliance, and finally, a limiting transverse limiting device 3 is welded at the lower part of the main beam 7 of the gantry crane to limit a carrying pole beam 1 of the lifting appliance.
And step four, after the lifting appliance is installed, starting to lift the gantry crane, transporting the gantry crane to a construction site, then removing the lifting appliance, and finishing the hoisting and transporting work of the gantry crane.
In conclusion, the gantry crane is hoisted by adopting the hoisting tool mode, the gantry crane can be hoisted by adjusting the corresponding limiting position directly according to the span during use, and the gantry crane is directly disassembled after hoisting is completed, so that the gantry crane is convenient to disassemble, assemble and hoist, and the gantry crane is not damaged and consumes a large amount of labor.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a hoist for large-scale gantry crane of integral hoisting which characterized in that: the lifting appliance comprises a carrying pole beam, a support rod, a transverse limiting device, a longitudinal limiting device, a lifting lug and a lifting belt; the carrying pole beam is connected to the end part of the support rod, and the carrying pole beam and the support rod are connected into a frame structure; the transverse limiting device is connected to a main beam of the gantry crane and used for limiting the horizontal displacement of a carrying pole beam of the lifting appliance; the longitudinal limiting device is connected above the shoulder pole beam; the lifting lug is connected above the shoulder pole beam, so that the gantry crane can be conveniently hoisted by penetrating through the steel wire rope; the lifting appliance is connected to a main beam of the gantry crane through a lifting belt;
the longitudinal limiting device is provided with a lifting lug, the top of the main beam of the gantry crane is also provided with the lifting lug, and two ends of the lifting lug are respectively connected with the lifting lug at the top of the main beam of the gantry crane through the lifting lug on the longitudinal limiting device and a pivot of the lifting lug at the top of the main beam of the gantry crane, so that the carrying pole beam is fixedly connected to the main beam of the gantry crane.
2. The spreader of claim 1, wherein: the number of the shoulder pole beams is two, and a steel box girder structure is adopted.
3. The spreader of claim 2, wherein: the supporting rods comprise transverse supporting rods and longitudinal supporting rods, the transverse supporting rods are connected between the two shoulder pole beams to form a rectangular frame, and the longitudinal supporting rods are connected between the transverse supporting rods to prevent the transverse supporting rods from deforming.
4. The spreader of claim 3, wherein: the support rod adopts a spiral pipe.
5. The spreader of claim 1, wherein: and rubber is filled in a gap between the longitudinal limiting device and the main beam of the gantry crane.
6. The spreader of any one of claims 1 to 5, wherein: the connection is a welded or threaded connection.
7. Use of a spreader for integral hoisting of large gantry cranes according to any of the claims 1 to 6, characterized in that the method comprises the following steps:
processing and manufacturing each component of the lifting appliance in a steel structure factory according to related data of a gantry crane to be lifted, and completing assembly of the lifting appliance;
after the hanger is machined, the size of the clamping ring is reasonably selected according to the hoisting weight and the lifting lug hole, the length of the steel wire rope is selected to meet the requirement of the hoisting angle of the gantry crane, the steel wire ropes are used in a matched mode, the hanger is guaranteed to be horizontal after being hoisted, and the hanger is convenient to install;
step three, after the whole assembly of the gantry crane is finished, the installation of the lifting appliance is started; firstly, clamping a longitudinal limiting device on a lifting appliance on a main beam of a gantry crane, filling a gap between the longitudinal limiting device and the main beam of the gantry crane by adopting rubber sheets, fixing a lifting lug at the top of the longitudinal limiting device and a lifting lug at the top of the main beam of the gantry crane by a lifting belt to fix the main beam of the gantry crane by the lifting appliance, and finally welding a transverse limiting device at the lower part of the main beam of the gantry crane to limit a carrying pole beam of the lifting appliance;
and step four, after the lifting appliance is installed, starting to lift the gantry crane, transporting the gantry crane to a construction site, dismantling the lifting appliance, and finishing the hoisting and transporting work of the gantry crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475659.5A CN110255358B (en) | 2019-06-03 | 2019-06-03 | Lifting appliance for integrally lifting large gantry crane and lifting use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475659.5A CN110255358B (en) | 2019-06-03 | 2019-06-03 | Lifting appliance for integrally lifting large gantry crane and lifting use method thereof |
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| Publication Number | Publication Date |
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| CN110255358A CN110255358A (en) | 2019-09-20 |
| CN110255358B true CN110255358B (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910475659.5A Active CN110255358B (en) | 2019-06-03 | 2019-06-03 | Lifting appliance for integrally lifting large gantry crane and lifting use method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295677A (en) * | 1979-11-14 | 1981-10-20 | Petrin Jerome A | Self-dumping hoisting bucket assembly |
| CN206521197U (en) * | 2017-03-06 | 2017-09-26 | 中国水利水电第八工程局有限公司 | A kind of adjustable balance hoisting beam |
-
2019
- 2019-06-03 CN CN201910475659.5A patent/CN110255358B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295677A (en) * | 1979-11-14 | 1981-10-20 | Petrin Jerome A | Self-dumping hoisting bucket assembly |
| CN206521197U (en) * | 2017-03-06 | 2017-09-26 | 中国水利水电第八工程局有限公司 | A kind of adjustable balance hoisting beam |
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| Publication number | Publication date |
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| CN110255358A (en) | 2019-09-20 |
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