CN103407884A - Flexible leg installing structure for double-beam portal crane - Google Patents
Flexible leg installing structure for double-beam portal crane Download PDFInfo
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- CN103407884A CN103407884A CN2013102973773A CN201310297377A CN103407884A CN 103407884 A CN103407884 A CN 103407884A CN 2013102973773 A CN2013102973773 A CN 2013102973773A CN 201310297377 A CN201310297377 A CN 201310297377A CN 103407884 A CN103407884 A CN 103407884A
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- support leg
- flexible leg
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- leg body
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Abstract
The invention discloses a flexible leg installing structure for a double-beam portal crane. The flexible leg installing structure comprises a flexible support leg body, and the flexible support leg body and a rigid support leg are arranged in a pair; the two sides of the flexible support leg body is provided with two inverse U-shaped supporting frames, and two main beams between the rigid support leg and the flexible support leg body are respectively fixed on left and right inner sides of the lower parts of the supporting frames; a vertical beam, which is perpendicular to an upper beam, is arranged below the upper beam of the two supporting frames, and a flexible hinging device is arranged between the vertical beam and a top beam of the flexible support leg body. The flexible leg installing structure provided by the invention has the advantages that the long span double-beam portal crane with double cantilevers only needs a rigid support leg and a flexible support leg, so that a problem that a long span double-beam portal crane with double cantilevers cannot be provided with a rigid support leg and a flexible support leg in the prior art is solved, the flexible leg installing structure is capable of bearing and defusing deflection, torsion and additional torque of a complete machine steel structure caused by negative factors such as large bending moment and large deviation, and the rail gnawing probability of a cart walking wheels is effectively reduced.
Description
Technical field
The present invention relates to a kind of transfer crane parts, specifically a kind of double girder gantry crane flexible leg mounting structure, belong to the elevator machinery technical field.
Background technology
Traditionally when hoisting crane without cantilever or only have single-cantilever, and the hoisting crane span is rigidly connected with girder one in two supporting legs while being greater than 38m usually, this supporting leg is referred to as rigid leg; Between girder, arrange one and link crossbeam, the below that links crossbeam is shelved on another root supporting leg by a poly-chloroprene rubber hinged-support, this supporting leg is referred to as flexible leg usually, existing this leg structure can only be for without cantilever or only have the transfer crane of single-cantilever, when the hoisting crane span is greater than 38m, and in the time of must being with two cantilever, existing scheme is no longer applicable.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of double girder gantry crane flexible leg mounting structure that can be applicable to large span band double cantilever beam.
In order to solve the problems of the technologies described above, double girder gantry crane of the present invention flexible leg mounting structure, comprise the flexible leg body arranged in pairs with rigid leg, flexible leg body both sides are provided with two and are inverted U-shaped bracing frame, two girders between rigid leg and flexible leg body are fixedly mounted on respectively the inboard, two of left and right of bracing frame bottom, the below of the entablatrance of described two bracing frames is provided with one and the vertically disposed longeron of entablatrance, is provided with the flexible hinge device between the back timber of longeron and flexible leg body.
Upper part that described flexible hinge device comprises the upper bracket that is arranged on the longeron bottom and is arranged on the upper bracket bottom; Lower the part that also comprises the undersetting that is arranged on back timber top and be arranged on undersetting top, on prop up between part and a lower part and be provided with poly-chloroprene rubber.
The length of the back timber of described flexible leg body can make crane carriage freely pass through at least.
Between described flexible leg body and girder, be provided with gap.
Between described flexible leg body and bracing frame, be provided with gap.
The invention has the advantages that:
Owing on the double-beam gantry hoisting crane of the two cantilevers of the applied to large span band arranged, being inverted U-shaped bracing frame and the flexible hinge device of setting, the double girder crane that has changed thus the two overarms of large span band in the past can only be applied the phenomenon of two rigid legs, the double-beam gantry hoisting crane of realizing the two cantilevers of large span band can adopt a rigid leg, the version of a flexible leg, the Gantry Crane that has solved large span band double cantilever beam is set thus a firm gentle problem can not be set, can bear and dissolve large moment of flexure, the deflection that the unfavorable factors such as large deviation are brought the complete machine steel structure, reverse, additional moment, effectively reduced the probability that large vehicle walking wheel is gnawed rail.
The accompanying drawing explanation
Fig. 1 is integral structure schematic diagram of the present invention;
Fig. 2 is that the A of Fig. 1 is to structural representation;
Fig. 3 is the side-looking structural representation of flexible leg part in the present invention;
Fig. 4 is the plan structure schematic diagram of flexible leg part in the present invention;
Fig. 5 is B place structure for amplifying schematic diagram in the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, double girder gantry crane of the present invention is described in further detail with the flexible leg mounting structure.
As shown in the figure, double girder gantry crane of the present invention flexible leg mounting structure, comprise the flexible leg body 2 arranged in pairs with rigid leg 1, flexible leg body 2 both sides are provided with two and are inverted U-shaped bracing frame 3, two girders 4 between rigid leg 1 and flexible leg body 2 are fixedly mounted on respectively the inboard, two of left and right of bracing frame 3 bottoms, the below of the entablatrance 5 of described two bracing frames is provided with one and the vertically disposed longeron 13 of entablatrance 5, between the back timber 6 of longeron 13 and supporting leg body, be provided with flexible hinge device 7, wherein the flexible hinge device also can be referred to as flexible hinge device, upper part 9 that flexible hinge device 7 comprises the upper bracket 8 that is arranged on longeron 13 bottoms and is arranged on upper bracket 8 bottoms, lower the part 11 that also comprises the undersetting 10 that is arranged on back timber 6 tops and be arranged on undersetting top, on prop up between part 9 and a lower part 11 and be provided with poly-chloroprene rubber 12.
Wherein, the length of the back timber 6 of flexible leg body can make crane carriage freely pass through at least; Between flexible leg body 2 and girder 4, be provided with gap, having met just, the gentle wheel that sidles is when asynchronous, the formed inverted L-shaped rigid frame of girder and rigid leg turns an angle in horizontal surface around the bearing of flexible hinge.
Further between flexible leg body 2 and bracing frame 3, also be provided with gap, change when meeting girder because of lifting when downwarp to some extent occurs, girder can relatively rotate by bearing and the flexible leg body of flexible hinge in vertical guide, bracing frame should have certain strength and stiffness, effectively to transmit the weight of girder deadweight, dolly deadweight and lifting object.
Claims (5)
1. double girder gantry crane flexible leg mounting structure, comprise the flexible leg body (2) arranged in pairs with rigid leg (1), it is characterized in that: described flexible leg body (2) both sides are provided with two and are inverted U-shaped bracing frame (3), two girders (4) between rigid leg (1) and flexible leg body (2) are fixedly mounted on respectively the inboard, two of left and right of bracing frame (3) bottom, the below of the entablatrance of described two bracing frames (5) is provided with one and the vertically disposed longeron of entablatrance (5) (13), between the back timber (6) of longeron (13) and flexible leg body, be provided with flexible hinge device (7).
2. according to double girder gantry crane claimed in claim 1 flexible leg mounting structure, it is characterized in that: upper part (9) that described flexible hinge device (7) comprises the upper bracket (8) that is arranged on longeron (13) bottom and is arranged on upper bracket (8) bottom; Also comprise the undersetting (10) that is arranged on back timber (6) top and lower the part (11) that is arranged on undersetting top, be provided with poly-chloroprene rubber (12) between a described upper part (9) and a lower part (11).
3. according to double girder gantry crane claimed in claim 1 flexible leg mounting structure, it is characterized in that: the length of the back timber of described flexible leg body (6) can make crane carriage freely pass through at least.
4. according to double girder gantry crane claimed in claim 1 flexible leg mounting structure, it is characterized in that: be provided with gap between described flexible leg body (2) and girder (4).
5. according to double girder gantry crane claimed in claim 1 flexible leg mounting structure, it is characterized in that: be provided with gap between described flexible leg body (2) and bracing frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102973773A CN103407884A (en) | 2013-07-16 | 2013-07-16 | Flexible leg installing structure for double-beam portal crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102973773A CN103407884A (en) | 2013-07-16 | 2013-07-16 | Flexible leg installing structure for double-beam portal crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103407884A true CN103407884A (en) | 2013-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102973773A Pending CN103407884A (en) | 2013-07-16 | 2013-07-16 | Flexible leg installing structure for double-beam portal crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103407884A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236263A (en) * | 2015-10-28 | 2016-01-13 | 上海振华重工(集团)股份有限公司 | Installation method for flexible leg of gantry crane |
| CN106946154A (en) * | 2017-05-04 | 2017-07-14 | 上海振华重工(集团)股份有限公司 | Bank bridge flexible legs |
| CN110510517A (en) * | 2019-09-02 | 2019-11-29 | 沃得重工(中国)有限公司 | The flexible leg of double girder gantry crane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1086917A (en) * | 1964-12-08 | 1967-10-11 | Haarlemsche Machf V H Gebr Fig | Improvements in mobile gantries |
| JPH11209063A (en) * | 1998-01-23 | 1999-08-03 | Marukou Tekkosho:Kk | Precast floor board installing jib crane |
| CN101913532A (en) * | 2010-07-30 | 2010-12-15 | 太原重工股份有限公司 | Hinge shaft devices of flexible support legs of gantry crane |
| CN202251420U (en) * | 2011-09-13 | 2012-05-30 | 无锡港盛港口机械有限公司 | Flexible hinge |
| CN202322014U (en) * | 2011-11-02 | 2012-07-11 | 河南起重机器有限公司 | Girder and supporting leg connection structure of portal crane |
| CN203428746U (en) * | 2013-07-16 | 2014-02-12 | 象王重工股份有限公司 | Flexible-leg installation structure for twin-beam portal crane |
-
2013
- 2013-07-16 CN CN2013102973773A patent/CN103407884A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1086917A (en) * | 1964-12-08 | 1967-10-11 | Haarlemsche Machf V H Gebr Fig | Improvements in mobile gantries |
| JPH11209063A (en) * | 1998-01-23 | 1999-08-03 | Marukou Tekkosho:Kk | Precast floor board installing jib crane |
| CN101913532A (en) * | 2010-07-30 | 2010-12-15 | 太原重工股份有限公司 | Hinge shaft devices of flexible support legs of gantry crane |
| CN202251420U (en) * | 2011-09-13 | 2012-05-30 | 无锡港盛港口机械有限公司 | Flexible hinge |
| CN202322014U (en) * | 2011-11-02 | 2012-07-11 | 河南起重机器有限公司 | Girder and supporting leg connection structure of portal crane |
| CN203428746U (en) * | 2013-07-16 | 2014-02-12 | 象王重工股份有限公司 | Flexible-leg installation structure for twin-beam portal crane |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236263A (en) * | 2015-10-28 | 2016-01-13 | 上海振华重工(集团)股份有限公司 | Installation method for flexible leg of gantry crane |
| CN105236263B (en) * | 2015-10-28 | 2017-07-25 | 上海振华重工(集团)股份有限公司 | The installation method of gantry flexible leg |
| CN106946154A (en) * | 2017-05-04 | 2017-07-14 | 上海振华重工(集团)股份有限公司 | Bank bridge flexible legs |
| CN110510517A (en) * | 2019-09-02 | 2019-11-29 | 沃得重工(中国)有限公司 | The flexible leg of double girder gantry crane |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131127 |