CN219653526U - Anchor device of large-tonnage whole-hole prefabricated box girder bridge girder erection machine - Google Patents
Anchor device of large-tonnage whole-hole prefabricated box girder bridge girder erection machine Download PDFInfo
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- CN219653526U CN219653526U CN202320763344.2U CN202320763344U CN219653526U CN 219653526 U CN219653526 U CN 219653526U CN 202320763344 U CN202320763344 U CN 202320763344U CN 219653526 U CN219653526 U CN 219653526U
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- erection machine
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- 238000004873 anchoring Methods 0.000 claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model relates to an anchoring device of a large-tonnage full-hole precast box girder bridge girder erection machine, which comprises an anchoring seat and an inclined supporting leg; the anchoring seat comprises a bottom plate, one end of the bottom plate is longitudinally welded with two anchoring plates, and two anchoring holes are formed in the bottom plate; the inclined supporting leg is of a length-adjustable structure, and the lower end of the inclined supporting leg is rotatably connected with two anchoring plates of the anchoring seat through a pin shaft. When the bridge girder erection machine is used, the anchoring seat is anchored on the girder surface, the upper ends of the inclined supporting legs are anchored with the supporting legs of the bridge girder erection machine, so that the bridge girder erection machine can be supported and anchored, the horizontal thrust born by the supporting legs of the bridge girder erection machine can be effectively resisted, and the construction safety is ensured.
Description
Technical Field
The utility model belongs to the technical field of bridge construction equipment, relates to a structure of a bridge girder erection machine, and particularly relates to an anchoring device of a large-tonnage whole-hole prefabricated box girder bridge girder erection machine.
Background
The bridge girder erection machine comprises two longitudinal spandrel girders, an overhead travelling crane is arranged between the two longitudinal spandrel girders, a front supporting leg, two middle supporting legs and a rear supporting leg are arranged below each longitudinal spandrel girder, a sliding rail is arranged on the longitudinal spandrel girders, and a pulley sliding along the sliding rail is arranged at the upper end of each middle supporting leg. When the bridge girder erection machine is used for erecting girders, the front supporting leg is supported on a bridge pier, the middle supporting leg and the rear supporting leg are supported on an erected bridge deck, and the crown block lifts the prefabricated girders to move along the longitudinal spandrel girders; when the bridge girder erection machine passes over the span, the longitudinal beam and the front and rear supporting legs move forwards for one span, and then the two middle supporting legs slide forwards for a corresponding distance. It can be seen that the supporting legs of the bridge girder erection machine can bear forward horizontal thrust no matter in the girder erection working condition or the overspan working condition, and especially for the large-tonnage full-hole prefabricated box girder bridge girder erection machine, the horizontal thrust generated by the supporting legs is larger due to the fact that the dead weights of the prefabricated Liang Chongliang and the bearing girders are larger, so that the bridge girder erection machine is not beneficial to stability, and great potential safety hazards are caused for safety construction.
Disclosure of Invention
The utility model aims to solve the problems and provides an anchoring device of a large-tonnage full-hole precast box girder bridge girder erection machine, which is used for effectively resisting horizontal thrust born by supporting legs of the bridge girder erection machine and ensuring construction safety.
The technical scheme of the utility model is as follows:
the utility model provides a whole hole precast box girder bridge crane anchor of large-tonnage which characterized in that: comprises an anchor seat and an inclined supporting leg;
the anchoring seat comprises a rectangular bottom plate, wherein side plates are welded on the top surfaces of two sides of the bottom plate respectively, a plurality of reinforcing plates are welded between the side plates, one end of the bottom plate is longitudinally welded with two anchoring plates, a certain interval is arranged between the two anchoring plates, opposite through pin holes are formed in the bottom plate, and the interval between the two anchoring holes is consistent with the interval between the two hoisting holes on the precast beam;
the inclined support leg comprises an upper section, a lower section, a middle section and an adjusting screw; the upper end of the upper section is provided with an upper lug plate, the lower end of the upper section is of a sleeve structure, and two pairs of pin holes which are penetrated in pairs are formed in the sleeve; the upper end of the lower section is provided with a threaded sleeve, and the lower end of the lower section is provided with a lower lug plate; the lower end of the middle section is provided with a threaded sleeve, the upper end of the middle section is provided with a plurality of pin holes, and the pin holes are longitudinally distributed at equal intervals along the middle section; the upper end of the middle section is inserted into a sleeve at the lower end of the upper section, and two pin holes on the middle section are respectively penetrated with two pairs of pin holes on the upper section and are penetrated with positioning pins; the two ends of the adjusting screw are respectively in threaded connection with the threaded sleeves at the lower end of the middle section and the upper end of the lower section;
the lower ear plate at the lower end of the lower section is inserted between the two anchor plates on the anchor seat and is rotationally connected with the two anchor plates through a pin shaft.
The anchoring seat disclosed by the utility model utilizes the hoisting Kong Maogu of the box girder, and the inclined support leg is anchored with the upper end of the support leg of the bridge girder erection machine, so that the anchoring seat can play an anchoring role on the bridge girder erection machine, effectively resists the horizontal thrust born by the support leg of the bridge girder erection machine, and ensures the construction safety of the bridge girder erection machine.
Drawings
FIG. 1 is a schematic side elevational view of the present utility model;
FIG. 2 is a schematic plan view of the present utility model;
fig. 3 is a schematic view of the use state of the present utility model.
Detailed Description
As shown in fig. 1 and 2, the utility model comprises an anchor seat and an inclined supporting leg; the anchoring seat comprises a rectangular bottom plate 1, wherein side plates 2 are welded on the top surfaces of two sides of the bottom plate respectively, a plurality of reinforcing plates 3 are welded between the two side plates, two anchoring plates 4 are longitudinally welded at one end of the bottom plate, a certain interval is reserved between the two anchoring plates, opposite through pin holes are formed in the two anchoring plates, two anchoring holes 5 are formed in the bottom plate, and the interval between the two anchoring holes is consistent with the interval between the two hoisting holes in the precast beam; the inclined leg comprises an upper section 6, a lower section 7, a middle section 8 and an adjusting screw 9; the upper end of the upper section is provided with an upper lug plate 10, the lower end of the upper section is of a sleeve structure, and two pairs of pin holes which are penetrated in pairs are formed in the sleeve; the upper end of the lower section is provided with a threaded sleeve, and the lower end of the lower section is provided with a lower lug plate 11; the lower end of the middle section 8 is provided with a threaded sleeve, the upper end of the middle section is provided with a plurality of pin holes 12, and the pin holes are longitudinally and equidistantly distributed along the middle section; the upper end of the middle section 8 is inserted into a sleeve at the lower end of the upper section 6, and two pin holes on the middle section are respectively penetrated with two pairs of pin holes on the upper section and are penetrated with positioning pins 13; the two ends of the adjusting screw rod 9 are respectively in threaded connection with the lower end of the middle section 8 and the threaded sleeve at the upper end of the lower section 7; the lower ear plate 11 at the lower end of the lower section is inserted between the two anchor plates 4 on the anchor seat and is rotatably connected with the two anchor plates through the pin shaft 14.
The length of the inclined support leg can be approximately adjusted by adjusting the length of the upper end of the middle section inserted into the upper section sleeve; by rotating the adjusting screw, the length of the inclined supporting leg can be finely adjusted by the screw connection length between the two ends of the screw and the middle section and the lower section.
In the practice of the present utility model, a rotatable handle 15 may be provided intermediate the adjustment screw for facilitating rotation of the adjustment screw.
As shown in fig. 3, the utility model is installed at the position close to the supporting legs 16 at two sides of the bridge girder erection machine in use, the anchor seat is horizontally placed on the bridge deck, two anchor holes on the base plate 1 of the anchor seat are aligned with two hoisting holes on the precast beam 17, and the anchor screw 18 is installed to fix the anchor seat on the bridge deck; a connecting plate 19 is welded on the supporting leg of the bridge girder erection machine, the inclined supporting leg is adjusted to be of a proper length, and the upper lug plate 10 of the inclined supporting leg is connected with the connecting plate 19 through a pin shaft. The inclined support legs can assist in supporting and anchoring the bridge girder erection machine, and can improve the structural stability of the bridge girder erection machine.
Claims (2)
1. The utility model provides a whole hole precast box girder bridge crane anchor of large-tonnage which characterized in that: comprises an anchor seat and an inclined supporting leg;
the anchoring seat comprises a rectangular bottom plate, wherein side plates are welded on the top surfaces of two sides of the bottom plate respectively, a plurality of reinforcing plates are welded between the side plates, one end of the bottom plate is longitudinally welded with two anchoring plates, a certain interval is arranged between the two anchoring plates, opposite through pin holes are formed in the bottom plate, and the interval between the two anchoring holes is consistent with the interval between the two hoisting holes on the precast beam;
the inclined support leg comprises an upper section, a lower section, a middle section and an adjusting screw; the upper end of the upper section is provided with an upper lug plate, the lower end of the upper section is of a sleeve structure, and two pairs of pin holes which are penetrated in pairs are formed in the sleeve; the upper end of the lower section is provided with a threaded sleeve, and the lower end of the lower section is provided with a lower lug plate; the lower end of the middle section is provided with a threaded sleeve, the upper end of the middle section is provided with a plurality of pin holes, and the pin holes are longitudinally distributed at equal intervals along the middle section; the upper end of the middle section is inserted into a sleeve at the lower end of the upper section, and two pin holes on the middle section are respectively penetrated with two pairs of pin holes on the upper section and are penetrated with positioning pins; the two ends of the adjusting screw are respectively in threaded connection with the threaded sleeves at the lower end of the middle section and the upper end of the lower section;
the lower ear plate at the lower end of the lower section is inserted between the two anchor plates on the anchor seat and is rotationally connected with the two anchor plates through a pin shaft.
2. The anchoring device of the large-tonnage full-span precast box girder bridge girder erection machine according to claim 1, wherein the anchoring device is characterized in that: a rotating handle is arranged in the middle of the adjusting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320763344.2U CN219653526U (en) | 2023-04-09 | 2023-04-09 | Anchor device of large-tonnage whole-hole prefabricated box girder bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320763344.2U CN219653526U (en) | 2023-04-09 | 2023-04-09 | Anchor device of large-tonnage whole-hole prefabricated box girder bridge girder erection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219653526U true CN219653526U (en) | 2023-09-08 |
Family
ID=87879391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320763344.2U Active CN219653526U (en) | 2023-04-09 | 2023-04-09 | Anchor device of large-tonnage whole-hole prefabricated box girder bridge girder erection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219653526U (en) |
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2023
- 2023-04-09 CN CN202320763344.2U patent/CN219653526U/en active Active
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