CN108439266B - Jacking device for crane - Google Patents
Jacking device for crane Download PDFInfo
- Publication number
- CN108439266B CN108439266B CN201810202545.9A CN201810202545A CN108439266B CN 108439266 B CN108439266 B CN 108439266B CN 201810202545 A CN201810202545 A CN 201810202545A CN 108439266 B CN108439266 B CN 108439266B
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- Prior art keywords
- jacking
- column
- short
- connecting rod
- crane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
Abstract
本发明公开了一种用于起重机上的顶升装置，包括：顶升组件，顶升组件设置呈矩形框结构，矩形框结构的四个直角位置下方分别依次连接有加高短立柱、固定立柱和底座；顶升组件包括：顶升梁、顶升立柱、长连杆和短连杆，顶升梁具有四个，分别设于矩形框结构的四个直角位置，每个顶升梁之间通过长连杆、短连杆构成矩形框结构，每个顶升梁下方均连有顶升立柱；加高短立柱包括：三块腹板连接构成的π型结构，其一侧面为开口，相对设置的两块腹板上均设有通孔，通孔可容纳顶升横梁；顶升立柱包括：四块腹板连接构成的箱型结构，其下端上设有通孔，通孔可容纳顶升横梁。本发明能有效提高工作效率，易于现场施工调整，且对现场施工条件的要求较低。
The invention discloses a jacking device used on a crane, comprising: a jacking assembly, the jacking assembly is arranged in a rectangular frame structure, and the four right-angle positions of the rectangular frame structure are respectively connected with a heightened short column and a fixed column in sequence. and the base; the jacking assembly includes: a jacking beam, a jacking column, a long connecting rod and a short connecting rod. There are four jacking beams, which are respectively set at four right-angle positions of the rectangular frame structure, and between each jacking beam A rectangular frame structure is formed by long connecting rods and short connecting rods, and a jacking column is connected below each jacking beam; the heightened short column includes: a π-shaped structure formed by connecting three webs, one side of which is open, and the opposite side is open. The two webs are provided with through holes, and the through holes can accommodate the jacking beam; the jacking column includes: a box-shaped structure formed by connecting four webs, the lower end is provided with through holes, and the through holes can accommodate the roof. Raise the beam. The invention can effectively improve work efficiency, is easy to adjust on-site construction, and has lower requirements on on-site construction conditions.
Description
Technical Field
The invention relates to auxiliary equipment of a crane, in particular to a jacking device for the crane, which can be applied to working occasions such as installation, final assembly, transformation, repair, disassembly and the like of the crane and a large-scale steel structure.
Background
Due to the rapid development of trade globalization, the throughput of the current container terminal rises rapidly, so that a large number of in-service terminal cranes cannot meet the requirements of the current container yard and loading and unloading. Taking a wheel type container gantry crane (hereinafter referred to as a bridge) as an example, the requirements of a storage yard and a box crossing of the current container wharf are higher and higher, so that the current bridge cannot meet the production requirement of the wharf. In order to adapt to the current production situation, heightening and modifying the existing field bridge to improve the lifting height of the field bridge becomes an urgent choice for a plurality of wharfs.
The stand column of a bridge is generally cut off in the current market, the upper structure of the bridge is hoisted by using a truck crane or a crawler crane, the upper structure and the lower structure of a crane generate a neutral position with a certain distance, then a section of newly manufactured stand column is plugged into the neutral position by using a mobile crane, the upper end of the newly manufactured stand column is connected with the original upper structure of the crane, and the lower end of the stand column is connected with the original lower structure of the crane, so that the purpose of increasing the height of the crane is achieved.
However, the above-described method has the following disadvantages:
1. the upper part of the bridge crane is heavy, so that a large-tonnage truck crane is required to be used for hoisting the upper part of the bridge crane;
2. in the construction process, the upper structure shakes and rotates in the air, so that after the heightened upright post is plugged, the heightened upright post is difficult to accurately position, and connection is completed; the accuracy is also poor after the connection is completed.
3. The requirement on the wind speed of a construction site is high, and when the side wind is slightly large, the construction difficulty and risk are greatly increased, or the site construction is stopped;
4. the construction period is long, the difficulty is high, the renting and lending cost of the large-tonnage truck crane is high, and the construction cost of the whole project is high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the jacking device for the crane, which can effectively improve the working efficiency, is easy to adjust in site construction and has lower requirements on site construction conditions.
In order to achieve the purpose, the invention adopts the following technical scheme:
a jacking device for use on a crane, comprising: the jacking assembly is arranged to be of a rectangular frame structure, and the heightening short upright columns, the fixed upright columns and the base are sequentially connected below four right-angle positions of the rectangular frame structure respectively;
the jacking subassembly includes: the jacking device comprises four jacking beams, jacking upright columns, long connecting rods and short connecting rods, wherein the four jacking beams are respectively arranged at four right-angle positions of a rectangular frame structure, the rectangular frame structure is formed by the long connecting rods and the short connecting rods between every two jacking beams, and the jacking upright columns are connected below the jacking beams;
the heightened short upright post comprises: the jacking device comprises a pi-shaped structure formed by connecting three webs, flanges are arranged on the upper end face and the lower end face of the pi-shaped structure, one side face of the pi-shaped structure is provided with an opening, through holes are formed in two oppositely-arranged webs, and the through holes are used for accommodating a jacking cross beam;
the jacking stand includes: the box structure that four webs connect and constitute all is equipped with the flange on its up end, the lower terminal surface, has still seted up the through-hole on the lower extreme, and the through-hole is used for holding the jacking crossbeam.
One end of the jacking beam is provided with a flange for being connected with the long connecting rod, and the other end of the jacking beam is provided with a jacking support, a flange for being connected with the short connecting rod and a flange for being connected with the jacking strut.
The fixed upright post comprises: three webs are connected to form a pi-shaped structure, flanges are arranged on the upper end face and the lower end face of the pi-shaped structure, and an opening is formed in one side face of the pi-shaped structure.
The base upper surface be equipped with the thick plate that is used for placing jacking cylinder, still seted up two rectangular holes on the base.
And inclined struts are connected between the jacking upright post and the long connecting rod and between the jacking upright post and the short connecting rod.
The side surface of the jacking upright post is also provided with a connecting lug plate for connecting with an inclined strut.
In the technical scheme, the jacking device for the crane provided by the invention further has the following beneficial effects:
1. the invention does not need to use a large-scale mobile crane, thereby saving two costs of time and economy;
2. the invention has stronger capability of resisting side wind in the heightening process and lower requirement on site construction conditions;
3. in the heightening process, the four jacking upright columns are respectively jacked, the jacking heights of the four legs can be controlled in a linkage manner and can also be controlled respectively, and the heightening device is convenient and flexible and is easy to adjust on site;
4. the invention only needs to reversely operate when the crane is put down due to the accident in the field heightening process, thereby being very convenient and safe.
Drawings
FIG. 1 is a schematic view of the base of the present invention;
FIG. 2 is a schematic structural view of the fixed post of the present invention;
FIG. 3 is a schematic structural view of the heightened short column according to the present invention;
FIG. 4 is a schematic structural view of a jacking assembly of the present invention;
FIG. 5 is a schematic structural view of a jacking column of the present invention;
FIG. 6 is a schematic structural view of a jacking beam of the present invention;
fig. 7 is a state diagram of the use of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
Referring to fig. 1 to fig. 6, a jacking device for a crane according to the present invention includes: jacking subassembly 4, jacking subassembly 4 sets up to be the rectangle frame structure, and four right angle position below of rectangle frame structure connect gradually respectively and increase short stand 3, fixed stand 2 and base 1, increase short stand 3 joinable several.
Preferably, the jacking assembly 4 comprises: jacking roof beam 402, jacking stand 401, long connecting rod 405 and short connecting rod 406 through high strength bolted connection each other, jacking roof beam 402 has four, is located four right angle positions of rectangular frame structure respectively, vertically connects through long connecting rod 405 between every jacking roof beam 402, transversely connects through short connecting rod 406 to constitute rectangular frame structure, every jacking roof beam 402 below all links jacking stand 401, jacking stand 401 and long connecting rod 405 between, jacking stand 401 and short connecting rod 406 between all still link bracing 403, thereby strengthen jacking subassembly 4's bulk strength.
Preferably, said heightening short column 3 comprises: the structure is a pi-shaped structure formed by welding three webs, flanges 304 are arranged on the upper end face and the lower end face of the structure, bolt holes 305 are formed in the flanges 304, one side face of each heightened short upright post 3 is an opening 301, through holes 302 are formed in the two oppositely-arranged webs, the through holes 302 are used for being inserted into jacking cross beams 303, the upper end face of each heightened short upright post 3 is connected with a corresponding jacking upright post 401 through the flanges 304 and bolts, and the lower end face of each heightened short upright post 3 is connected with a corresponding fixed upright post 2 through the flanges 304 and the bolts.
Preferably, said fixed upright 2 comprises: three webs are welded to form a pi-shaped structure, flanges 201 are arranged on the upper end face and the lower end face of the fixed upright post 2, bolt holes 202 are formed in the flanges 201, and an opening 203 is formed in one side face of the fixed upright post 2 and used for placing or taking out a jacking oil cylinder. The upper end surface of the fixed upright post 2 is connected with the corresponding heightened short upright post 3 through a flange 201 and a bolt, and the lower end surface of the fixed upright post 2 is connected with the corresponding base 1 through the flange 201 and the bolt.
The preferred, base 1 form by the steel sheet welding, can be the I-beam structure, also can be box girder construction, arrange subaerially for with hoist dead weight load sharing subaerial, reduce the pressure of load to ground, base 1's upper surface is equipped with the thick plate 101 that is used for placing jacking cylinder, two slot 102 have still been seted up on base 1 is close to the position on ground, equipment such as fork truck of facilitating the use are carried.
Preferably, the jacking column 401 includes: the box structure that four webs welding constitutes all is equipped with flange 501 on its up end, the lower terminal surface, still has seted up through-hole 503 on two of them webs of lower extreme, and through-hole 503 is used for inserting jacking crossbeam 303, and the up end of jacking stand 401 is connected with corresponding jacking roof beam 402 through flange 501, and the lower terminal surface of jacking stand 401 is connected with corresponding heightening short column 3 through flange 501, high strength bolt. The side surface of the jacking upright column 401 is also provided with a connecting lug plate 502 which is provided with a bolt hole for connecting with the inclined strut 403.
Preferably, the jacking beam 402 is mainly made of welded round pipes, and one end of the jacking beam is provided with a flange 602 for connecting with the long connecting rod 405, and the other end of the jacking beam 402 is provided with a jacking support 601 for lifting the crane steel structure, a flange 602 for connecting with the short connecting rod 406 and a flange 603 for connecting with the jacking strut 401.
Preferably, the main structure of the long connecting rod 405 and the short connecting rod 406 is also a circular tube or a box beam, and flanges are provided at both ends for connecting with the jacking beam 402.
Preferably, the inclined strut 403 is made of a thin circular tube, and two ends of the inclined strut are provided with connecting plates for connecting the jacking column 401 and the jacking beam 402, or for connecting the jacking column 401 and the short connecting rod 406.
Referring to fig. 7, when the present invention is used to heighten a tire crane, the layout of the present invention is as follows:
1. the base 1 is first arranged on the ground close to the crane column and the hydraulic system is arranged. Then, the fixed upright post 2, the corresponding heightened short upright post 3 and the jacking assembly 4 are connected by high-strength bolts, and are arranged on the base 1 and connected;
2. mounting a jacking bracket on a crane steel structure, and disconnecting a lower structure and an upper structure of the crane;
3. the cross beam is plugged into the lowest heightened short upright post 3, a piston rod of a hydraulic cylinder extends out, jacking is stopped after the piston rod contacts with the first jacking cross beam 303, and then a connecting bolt between the heightened short upright post 3 and the fixed upright post 2 is loosened;
4. the hydraulic cylinder continues to lift, and the part above the heightened short upright post 3 is lifted until the lifting support 601 of the lifting beam 402 supports the lifting bracket of the crane steel structure;
5. continuing jacking, after the column is lifted to a certain height, plugging another heightened short column 3 between the heightened short column 3 and the fixed column 2 by using a forklift or other carrying equipment, and contracting the hydraulic cylinder to enable the jacked heightened short column 3 to fall to the top of the newly plugged heightened short column 3, and connecting the two heightened short columns 3 by using bolts;
6. continuing to retract the piston rod until the piston rod is fully retracted;
7. the first jacking cross beam 303 is moved out of the original heightening short upright post 3, is moved to the heightening short upright post 3 just plugged in the lower part, and is repeatedly lifted up step by repeating the process of 5-7 until the required height is reached.
When the crane needs to be disassembled or the height of the crane is reduced, the process is operated reversely.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202545.9A CN108439266B (en) | 2018-03-13 | 2018-03-13 | Jacking device for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202545.9A CN108439266B (en) | 2018-03-13 | 2018-03-13 | Jacking device for crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108439266A CN108439266A (en) | 2018-08-24 |
| CN108439266B true CN108439266B (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810202545.9A Active CN108439266B (en) | 2018-03-13 | 2018-03-13 | Jacking device for crane |
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| CN (1) | CN108439266B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482440B (en) * | 2019-09-06 | 2024-07-05 | 上海振华重工(集团)股份有限公司 | Well-shaped cantilever beam for lifting container crane |
| CN115123737B (en) * | 2022-06-17 | 2024-06-07 | 东莞市我能精工设备有限公司 | Conveying system and method for changing cargo movement direction |
| CN116002564A (en) * | 2023-01-12 | 2023-04-25 | 上海振华重工(集团)股份有限公司 | Tire crane heightening and jacking tool |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4135961A1 (en) * | 1991-06-04 | 1992-12-10 | Liebherr Werk Biberach Gmbh | CLIMBING DEVICE FOR CLIMBING LARGE CLIMBING WEIGHTS IN TURN TURNING CRANES, WORKING PLATFORMS OR THE LIKE. |
| JPH07242390A (en) * | 1994-03-04 | 1995-09-19 | Hitachi Plant Eng & Constr Co Ltd | Method and apparatus for assembling indoor gate type crane |
| CN203255892U (en) * | 2013-04-15 | 2013-10-30 | 江苏大通重工有限公司 | Heightened gantry type crane |
| CN103193162B (en) * | 2013-04-16 | 2014-12-10 | 上海振华重工(集团)股份有限公司 | Crane heightening device and method |
| CN103964300B (en) * | 2014-05-16 | 2015-12-30 | 上海振华重工(集团)股份有限公司 | Jacking type increases equipment |
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- 2018-03-13 CN CN201810202545.9A patent/CN108439266B/en active Active
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| Publication number | Publication date |
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| CN108439266A (en) | 2018-08-24 |
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Inventor after: Xiong Dinggen Inventor after: Wang Zhibin Inventor after: Su Hongya Inventor after: Feng Zhiwen Inventor after: Shen Feng Inventor after: Zhou Dongbo Inventor before: Xiong Dinggen Inventor before: Wang Zhibin Inventor before: Su Hongya Inventor before: Feng Zhiwen Inventor before: Shen Feng Inventor before: Zhou Dongpo |
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Effective date of registration: 20210909 Address after: 200125 No. 3261 Dongfang Road, Shanghai, Pudong New Area Patentee after: SHANGHAI ZHENHUA HEAVY INDUSTRIES Co.,Ltd. Patentee after: CCCC HIGHWAY BRIDGES NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Address before: 200125 No. 3261 Dongfang Road, Shanghai, Pudong New Area Patentee before: SHANGHAI ZHENHUA HEAVY INDUSTRIES Co.,Ltd. |