CN204185777U - A kind of cantilevered auxiliary landing leg structure of bridge erecting machine - Google Patents
A kind of cantilevered auxiliary landing leg structure of bridge erecting machine Download PDFInfo
- Publication number
- CN204185777U CN204185777U CN201420563251.6U CN201420563251U CN204185777U CN 204185777 U CN204185777 U CN 204185777U CN 201420563251 U CN201420563251 U CN 201420563251U CN 204185777 U CN204185777 U CN 204185777U
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- column
- auxiliary leg
- semi girder
- leg
- telescopic
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Abstract
Name of the present utility model is called a kind of cantilevered auxiliary landing leg structure of bridge erecting machine.Belong to bridgework machinery and bridge erection technical field.When it mainly solves existing Bridge Erector via hole, auxiliary leg and Bridge Erector supporting leg pier altogether, causes the problem that bent cap space is inadequate.Its principal character is: the column shell comprising the main force structure of auxiliary leg, for the Pulley mechanism that auxiliary leg vertically moves, drive the hydraulic jack that auxiliary leg is flexible, regulate the telescopic column of auxiliary leg height, the oil cylinder connection beam of connecting fluid compressing cylinder, semi girder, stability thread steel becomes stable three-legged structure with telescopic column with column hull shape, semi girder bottom arranges spherical support, shearing cone, and auxiliary leg arranges corresponding safe work platform.The utility model has auxiliary leg and can overlap completely with Bridge Erector supporting leg, does not take the feature of bent cap exceptional space, is mainly used in the auxiliary leg of cantilevered Bridge Erector.
Description
Technical field
The utility model belongs to bridgework machinery and bridge erection technical field, is specifically related to a kind of cantilevered aided support leg structure.
Background technology
The equal upright support of auxiliary leg of existing Bridge Erector is on bent cap, and when Bridge Erector via hole, auxiliary leg and Bridge Erector supporting leg pier altogether, causes bent cap space inadequate.This structuring limits the structure design of bridge pier and the structure design of Bridge Erector, even in order to solve the inadequate problem in bent cap space, needing to set up temporary rest pier, the human and material resources of at substantial and financial resources, both uneconomical also impracticable.
Summary of the invention
The utility model is for a kind of cantilevered auxiliary landing leg structure of bridge erecting machine designed by the above problem, the problem that when effectively can solve Bridge Erector via hole, bent cap space is inadequate.
Technical solution of the present utility model is: a kind of cantilevered auxiliary landing leg structure of bridge erecting machine, is characterized in that: comprise a column shell, two Pulley mechanisms, four hydraulic jacks, two telescopic columns, two oil cylinder connection beam, semi girder, spherical support, shearing cone, two stability thread steel and a corresponding safe work platform, described two Pulley mechanisms are arranged on column shell top, and column shell is the main load-carrying construction part of auxiliary leg, Pulley mechanism can realize this auxiliary leg by the motor driven systems be arranged on Bridge Erector and vertically move on crane ' s major girder, described four hydraulic jacks are arranged in column shell, and four hydraulic jacks are connected with two telescopic columns by two oil cylinder connection beam, can realize the flexible of two telescopic columns and regain, described telescopic column is solid cylinder structure, be provided with circular pegs axis hole and lock nut, the safe bearing pin of different spacing, fluid,matching compressing cylinder can realize rising and the decline of auxiliary leg, auxiliary leg is flexible put in place after, by the mechanical caging nut on telescopic column and safe bearing pin, can transfer loads on the semi girder of bottom, thus avoid hydraulic jack stressed, described semi girder is rotatably mounted on two telescopic columns, and be provided with the stability thread steel of oblique pull and vertical Chain block between two outer end points of two telescopic column respective cantilevered beam sides and column shell, Chain block is suspended on the front of telescopic column by the dolly with roller, stablize for the semi girder of auxiliary leg when retracted state, spherical support is arranged on semi girder bottom and stability thread steel offside, this spherical support can eliminate the horizontal force of auxiliary leg inside, ensure structural safety, shearing cone is set in the middle of semi girder bottom, coordinate bellmouth reserved on bent cap in advance, can ensure that the longitudinal direction of auxiliary leg on bent cap is fixed, stability thread steel top is connected on column shell, and bottom connects on a cantilever beam, becomes stable three-legged structure with telescopic column with column hull shape, and balanced cantilever beam supports the power of toppling produced at bent cap upper cantilever, safe work platform is arranged between column shell and semi girder.
Safe work platform described in technical solution of the present utility model is arranged the hydraulic power unit that promising hydraulic jack provides power.
The cantilevered auxiliary landing leg structure of bridge erecting machine that the utility model adopts column shell, Pulley mechanism, hydraulic jack, telescopic column, oil cylinder connection beam, semi girder, spherical support, shearing cone, stability thread steel and safe work platform to form, wherein, column shell is the main load-carrying construction part of auxiliary leg, and two Pulley mechanisms are installed on its top, Pulley mechanism can realize this auxiliary leg by the motor driven systems be arranged on Bridge Erector and vertically move on crane ' s major girder, four hydraulic jacks are arranged in column shell, and hydraulic jack is connected with telescopic column by oil cylinder connection beam, can realize the flexible of telescopic column and regain, telescopic outrigger is solid cylinder structure, be provided with the circular pegs axis hole of different spacing, fluid,matching compressing cylinder can realize rising and the decline of auxiliary leg, auxiliary leg is flexible put in place after, by the mechanical caging nut on telescopic column and safe bearing pin, load directly can be delivered to the semi girder of bottom by telescopic column from column shell, thus avoid hydraulic jack stressed, semi girder is rotatably mounted on two telescopic columns, and be provided with the stability thread steel of oblique pull and vertical Chain block between two outer end points of two telescopic column respective cantilevered beam sides and column shell, Chain block is suspended on the front of auxiliary leg column by the dolly with roller, stablize both sides, semi girder bottom for the semi girder of auxiliary leg when retracted state and be provided with spherical support, this spherical support can eliminate the horizontal force of auxiliary leg inside, ensure structural safety, shearing cone is set in the middle of semi girder bottom, coordinate bellmouth reserved on bent cap in advance, can ensure that the longitudinal direction of auxiliary leg on bent cap is fixed.Stability thread steel top is connected on column shell, and bottom connects on a cantilever beam, becomes stable three-legged structure with the telescopic column of auxiliary leg with column hull shape, and balanced cantilever beam supports the power of toppling produced at bent cap upper cantilever.When auxiliary leg supports, telescopic column stretches out under the effect of hydraulic jack, is supported on bent cap, can overlaps completely, do not take any position with the main supporting leg of Bridge Erector by spherical support, shearing cone.
The utility model has auxiliary leg and can overlap completely with Bridge Erector supporting leg, does not take the feature of bent cap exceptional space.The utility model is mainly used in the auxiliary leg of cantilevered Bridge Erector.
Accompanying drawing explanation
Fig. 1 is state of the stretching out elevation of auxiliary leg.
Fig. 2 be auxiliary leg stretch out side view of the state.
Fig. 3 is the retracted state elevation of auxiliary leg.
Fig. 4 is the retracted state lateral view of auxiliary leg.
Fig. 5 is shearing cone reserves in bellmouth enlarged drawing at bent cap.
Tu6Shi spherical support mechanism enlarged drawing.
In figure: 1. column shell, 2. hydraulic jack, 3. telescopic column, 4. oil cylinder connection beam, 5. bent cap, 6. spherical support, 7. shearing cone, 8. safe work platform, 9. Pulley mechanism, 10. semi girder, 11. stability thread steel, 12. Chain blocks, 13. main supporting legs.
Detailed description of the invention
The working method of this auxiliary leg is further illustrated in conjunction with above-mentioned accompanying drawing.
A kind of cantilevered auxiliary landing leg structure of bridge erecting machine of the utility model comprises column shell 1, Pulley mechanism 9, hydraulic jack 2, telescopic column 3, oil cylinder connection beam 4, semi girder 10, spherical support 6, shearing cone 7, stability thread steel 11 and safe work platform 8.Hydraulic jack 2 is arranged in column shell 1, connects telescopic column 3, for the flexible of telescopic column 3 and withdrawal.Telescopic column 3 is provided with bearing pin and the locking nut of pin shaft hole and the cooperation of this pin shaft hole, for after telescopic column 3 is in place, load is directly delivered on bent cap 5 by column shell 2, telescopic column 3, semi girder 10, spherical support 6, guarantees that hydraulic jack 2 does not stress.Column shell 1 is provided with Pulley mechanism 9, auxiliary leg is suspended on girder by Pulley mechanism 9, the weight of auxiliary leg is supported by four points, and Pulley mechanism 9 can realize this auxiliary leg by the motor driven systems be arranged on Bridge Erector and vertically move on crane ' s major girder.Semi girder 10 is rotatably mounted on two telescopic columns 3, and be provided with the stability thread steel 11 of oblique pull and vertical Chain block 12 between two outer end points of two telescopic column 3 respective cantilevered beam 10 sides and upper holder, Chain block 12 is suspended on the front of telescopic column 3 by the dolly of band roller, spherical support 6 correspondence is arranged on bottom two outer ends of semi girder 10 opposite side, and shearing cone 7 is arranged on the centre of spherical support 7 side semi girder.The power that stability thread steel 11 produces for balancing auxiliary leg semi girder 10, stability thread steel 11, semi girder 10, telescopic column 3 and upper holder form stable triangular support configurations and ensure Stability Analysis of Structures.Telescopic column 3, under the state regained, is fixed by Chain block 12, is prevented semi girder 10 from overturning, and Chain block 12 is suspended on the front of auxiliary leg column by the dolly of band roller.Semi girder 10 in the spherical support 6 of support place of bent cap for the support of auxiliary leg on bent cap.The shearing wimble structure of semi girder 10 coordinates the groove on bent cap, realizes auxiliary leg fixing on bent cap.Lower fixed frame and the safe work platform 8 be provided with between lower fixed frame and semi girder 10 for safety of workers work, this safe work platform 8 is arranged the hydraulic power unit that promising hydraulic jack 2 provides power.
Stretching out and regaining of telescopic column 3 provides power by hydraulic jack 2, and when hydraulic jack 2 piston rod stretches out, telescopic column 3 stretches out, and semi girder 10 moves down; When hydraulic jack 2 piston rod shrinks, telescopic column 3 is regained, and semi girder 10 moves up.After auxiliary leg reaches Support Position, from the nearest pin shaft hole interpolation upper pin of locking nut, the position of adjustment locking nut makes bearing pin contact locking nut.
As shown in Figure 1 and Figure 2, when supporting leg starts to support, the hydraulic jack 2 of auxiliary leg and the Chain block 12 of cantilever mounted beam 10 drop to specified altitude assignment simultaneously.Start stability thread steel 11 is installed, and unclamp Chain block 12.Continue to support auxiliary leg, to guarantee in the cone tank that shearing cone 7 falls bent cap 5 that as shown in Figure 5, now spherical support 6 is supported on bent cap 5 as shown in Figure 6.
As shown in Figure 3, Figure 4, when supporting leg is regained, the hydraulic jack 2 of auxiliary leg is regained, and when all leaving bent cap to specified altitude assignment and spherical support 6 and shearing cone 7, uses Chain block 12 to be fixed by semi girder 10, takes out stability thread steel 11.
More than just carried out exemplary explanation to invention, specific implementation of the present invention is not limited thereto.The insubstantial modifications that any employing design of the present invention and technical scheme are carried out, all within protection scope of the present invention.
Claims (2)
1. a cantilevered auxiliary landing leg structure of bridge erecting machine, is characterized in that: comprise a column shell (1), two Pulley mechanisms (9), four hydraulic jacks (2), two telescopic columns (3), two oil cylinder connection beam (4), semi girder (10), spherical support (6), shearing cone (7), two stability thread steel (11) and a corresponding safe work platform (8); Described two Pulley mechanisms (9) are arranged on column shell (1) top; Described four hydraulic jacks (2) are arranged in column shell (1), and four hydraulic jacks (2) are connected with two telescopic columns (1) by two oil cylinder connection beam (4); Described telescopic column (3) is solid cylinder structure, is provided with circular pegs axis hole and lock nut, the safe bearing pin of different spacing; Described semi girder (10) is rotatably mounted on two telescopic columns (3), and be provided with stability thread steel (11) and the vertical Chain block (12) of oblique pull between two outer end points of two telescopic column (3) respective cantilevered beam (10) sides and column shell (1), Chain block (12) is suspended on the front of telescopic column (3) by the dolly of band roller, spherical support (6) is arranged on semi girder (10) bottom and stability thread steel (11) offside, arranges shearing cone (7) in the middle of semi girder (10) bottom; Stability thread steel (11) top is connected on column shell (1), and bottom is connected on semi girder (10), forms stable three-legged structure with telescopic column (3) and column shell (1); Safe work platform is arranged between column shell (1) and semi girder (10).
2. a kind of cantilevered auxiliary landing leg structure of bridge erecting machine according to claim 1, is characterized in that: described safe work platform (8) arranges the hydraulic power unit that promising hydraulic jack (2) provides power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420563251.6U CN204185777U (en) | 2014-09-28 | 2014-09-28 | A kind of cantilevered auxiliary landing leg structure of bridge erecting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420563251.6U CN204185777U (en) | 2014-09-28 | 2014-09-28 | A kind of cantilevered auxiliary landing leg structure of bridge erecting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204185777U true CN204185777U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420563251.6U Expired - Fee Related CN204185777U (en) | 2014-09-28 | 2014-09-28 | A kind of cantilevered auxiliary landing leg structure of bridge erecting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204185777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055894A (en) * | 2018-11-21 | 2019-07-26 | 中铁十一局集团第六工程有限公司 | A kind of flow type bridge erecting machine and its heavy grade erecting beam construction method |
| CN112921817A (en) * | 2021-02-04 | 2021-06-08 | 中铁五局集团有限公司 | Steel support for equivalent extension bridge girder erection machine stand column and use method thereof |
-
2014
- 2014-09-28 CN CN201420563251.6U patent/CN204185777U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055894A (en) * | 2018-11-21 | 2019-07-26 | 中铁十一局集团第六工程有限公司 | A kind of flow type bridge erecting machine and its heavy grade erecting beam construction method |
| CN110055894B (en) * | 2018-11-21 | 2024-02-09 | 中铁十一局集团第六工程有限公司 | Mobile bridge girder erection machine and large-gradient girder erection construction method thereof |
| CN112921817A (en) * | 2021-02-04 | 2021-06-08 | 中铁五局集团有限公司 | Steel support for equivalent extension bridge girder erection machine stand column and use method thereof |
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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: 20150304 |