CN220450673U - A vertical hydro-cylinder protection device for falling roof beam construction - Google Patents
A vertical hydro-cylinder protection device for falling roof beam construction Download PDFInfo
- Publication number
- CN220450673U CN220450673U CN202321610739.5U CN202321610739U CN220450673U CN 220450673 U CN220450673 U CN 220450673U CN 202321610739 U CN202321610739 U CN 202321610739U CN 220450673 U CN220450673 U CN 220450673U
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- Prior art keywords
- steel
- steel cushion
- oil cylinder
- cushion blocks
- cushion block
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- 238000010276 construction Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 239000003921 oil Substances 0.000 abstract 3
- 239000010720 hydraulic oil Substances 0.000 abstract 2
- 230000008093 supporting effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model relates to a vertical oil cylinder protection device for girder falling construction, which comprises two semicircular steel cushion blocks, wherein the inner diameter and the outer diameter of each steel cushion block are respectively equal to the inner diameter and the outer diameter of a piston cylinder of a vertical oil cylinder, the top surface and the bottom surface of each steel cushion block are parallel, the thicknesses of the two cushion blocks are equal, at least one rib plate is welded on the outer wall of each steel cushion block along the direction perpendicular to the top surface and the bottom surface, the upper end of each rib plate is flush with the top surface of each steel cushion block, and the two semicircular steel cushion blocks are buckled into a circular ring. When the hydraulic oil cylinder is used, the two cushion blocks are buckled around the piston rod of the oil cylinder and supported at the top of the piston cylinder, and the two steel cushion blocks support the upper load, so that the hydraulic oil cylinder can be effectively protected.
Description
Technical Field
The utility model belongs to the technical field of bridge construction, relates to steel girder installation construction by adopting a sliding method, and in particular relates to a vertical oil cylinder protection device for girder falling construction after the steel girder sliding construction is completed.
Background
The steel beam sliding installation construction is to arrange a slideway foundation and lay a slideway on the pier top along the bridge, place a sliding shoe on the slideway, support the steel beam on the sliding shoe, draw the sliding shoe to slide along the slideway by adopting a traction device, convert a supporting system after the steel beam slides in place, and then fall the whole beam.
As shown in fig. 1, when the steel beam supporting system is converted, the steel beam 10 is required to be jacked up by adopting the vertical oil cylinder 3, then the sliding shoes 11 below the steel beam 10 are removed, the sliding shoes 12 and the sliding way foundation 13 are removed, a temporary support with a certain height is arranged on a pier top permanent support, and then the steel beam is dropped onto the temporary support. This process takes a long time, if the vertical cylinder 3 is adopted for supporting the steel beam for a long time, the structure of the hydraulic system of the cylinder is unfavorable, so after the cylinder jacks up the steel beam, temporary cushion blocks 14 are respectively arranged on two sides of the vertical cylinder 3 to replace the cylinder for supporting, but the temporary cushion blocks 14 are arranged and the later dismantling is time-consuming and labor-consuming.
As shown in fig. 2, after the steel beam 10 falls onto the temporary support 15, the brackets on two sides of the pier are removed, then the vertical cylinders 3 are respectively arranged on two sides of the pier top to drop the beam, the beam dropping process is performed step by step, and the beam dropping process is not more than 10cm per step according to the regulations, and the concrete process is as follows: the multi-layer backing plate 16 is arranged at the top of the vertical oil cylinder 3, the oil cylinder firstly jacks up the steel beam, the top of the temporary support 15 is dismantled by 10cm, then the height of the oil cylinder is reduced, the steel beam falls onto the temporary support 15, the backing plate 10cm thick at the top of the oil cylinder is removed, then the oil cylinder jacks up the steel beam again, the height of the temporary support is reduced by 10cm, and the vertical oil cylinder 1 and the temporary support 15 alternately reduce in height until the steel beam 10 falls onto the pier top permanent support 17. The vertical cylinder 3 also needs to bear load for a long time in the process, and is also disadvantageous to the cylinder structure.
Disclosure of Invention
The utility model aims to solve the problems and provide a vertical oil cylinder protection device for girder falling construction, which can always support a steel girder by adopting an oil cylinder when the steel girder is subjected to support system conversion and protect the oil cylinder in the girder falling process.
The technical scheme of the utility model is as follows:
a vertical hydro-cylinder protection device for falling roof beam construction, its characterized in that: the two semi-circular steel cushion blocks are welded on the outer wall of each steel cushion block along the direction perpendicular to the top surface and the bottom surface, the upper ends of the two rib plates are flush with the top surface of the steel cushion block, and the two semi-circular steel cushion blocks are buckled into a circular ring.
According to the utility model, the annular steel cushion block is arranged around the piston rod of the vertical oil cylinder, and the upper load is supported by the annular cushion block, so that the oil cylinder can be effectively protected, and the vertical oil cylinder can be used for supporting all the time when the steel beam supporting system is converted, so that the time for setting and dismantling the temporary cushion block can be saved; the utility model can also protect the oil cylinder when the beam falls in the later stage.
Drawings
FIG. 1 is a state diagram of a steel beam in place after slipping to perform a support system conversion;
FIG. 2 is a schematic view of the state of the drop beam construction;
FIG. 3 is a schematic plan view of the present utility model;
FIG. 4 is a schematic elevational view of the present utility model;
FIG. 5 is a plan view of a split structure of the present utility model;
FIG. 6 is a schematic view of the present utility model mounted to a vertical cylinder;
fig. 7 is a schematic view showing a state in which the vertical cylinder is supported and protected according to the present utility model.
Detailed Description
As shown in fig. 3, 4 and 5, the utility model comprises two semicircular steel cushion blocks 1, the inner diameter and the outer diameter of each steel cushion block are equal to the inner diameter and the outer diameter of a piston cylinder of a vertical oil cylinder respectively, the top surface and the bottom surface of each steel cushion block are parallel, the thickness of the two cushion blocks is equal, at least one rib plate 2 is welded on the outer wall of each steel cushion block along the direction perpendicular to the top surface and the bottom surface, the upper end of each rib plate is flush with the top surface of the steel cushion block, and the two semicircular steel cushion blocks 1 are buckled into a circular ring.
When the two steel cushion blocks 1 are buckled into a circular ring shape, the rib plates 2 on the two steel cushion blocks 1 are symmetrically arranged along the diameter direction of the circular ring.
When the utility model is embodied, the lower end of each rib plate 2 can be arranged to extend to a certain length below the bottom surface of the steel cushion block 1.
In the implementation of the utility model, the height of the steel cushion blocks can be set according to the beam falling height of each step of the beam falling schedule, for example, the thickness of each steel cushion block is set to be 10cm when the beam falling height is set to be 10cm each time.
The application method of the utility model is as follows:
as shown in fig. 6 and 7, when the steel beam supporting system is converted, the bolster 4 is arranged at the top of the two vertical cylinders 3, a plurality of layers of backing plates are arranged at the top surface of the bolster 4 and are in full contact with the bottom surface of the steel beam, then the vertical cylinders 3 are started to lift upwards by 10cm, at the moment, two semi-annular steel cushion blocks 1 of the utility model are inserted at two sides of each vertical cylinder piston rod 31, and the two semi-annular cushion blocks 1 are buckled around the piston rods 31 and supported at the top of the cylinder piston cylinder 32. Then the oil cylinder returns oil, the piston rod 31 is retracted, the upper load is supported by the two steel cushion blocks 1, and the piston rod 31 is not stressed, so that the oil cylinder is effectively protected. With the above structure, the steel beam 10 can be supported all the time by the vertical cylinder 3 when the steel beam supporting system shown in fig. 1 is switched, thereby saving the time for installing and detaching the temporary cushion block 14. In the beam falling process shown in fig. 2, a cushion block is inserted around the piston rod when the vertical cylinder is lifted for the first time, and after the cylinder returns oil each time, the cushion block supports the upper load, so that the cylinder can be protected.
The rib plate 2 on the outer side of the steel cushion block 1 can be used as a handle when the cushion block 1 is installed, and on the other hand, the supporting range of the top cushion beam 4 of the oil cylinder can be enlarged in the state shown in fig. 7. When the two ends of the cushion beam 4 deform downwards due to stress, the rib plates are extruded towards the direction of the piston cylinder 32, and part of the stress is transmitted to the outer wall of the piston cylinder of the oil cylinder by the rib plates 2, so that the supporting effect on the cushion beam 4 can be increased.
Claims (4)
1. A vertical hydro-cylinder protection device for falling roof beam construction, its characterized in that: the two semi-circular steel cushion blocks are welded on the outer wall of each steel cushion block along the direction perpendicular to the top surface and the bottom surface, the upper ends of the two rib plates are flush with the top surface of the steel cushion block, and the two semi-circular steel cushion blocks are buckled into a circular ring.
2. The vertical cylinder protection device for girder construction according to claim 1, wherein: when the two steel cushion blocks are buckled into a circular ring shape, rib plates on the two steel cushion blocks are symmetrically arranged along the diameter direction of the circular ring.
3. The vertical cylinder protection device for girder construction according to claim 1, wherein: the lower end of each rib plate extends to a certain length below the bottom surface of the steel cushion block.
4. The vertical cylinder protection device for girder construction according to claim 1, wherein: the thickness of each steel pad was 10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321610739.5U CN220450673U (en) | 2023-06-23 | 2023-06-23 | A vertical hydro-cylinder protection device for falling roof beam construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321610739.5U CN220450673U (en) | 2023-06-23 | 2023-06-23 | A vertical hydro-cylinder protection device for falling roof beam construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220450673U true CN220450673U (en) | 2024-02-06 |
Family
ID=89739187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321610739.5U Active CN220450673U (en) | 2023-06-23 | 2023-06-23 | A vertical hydro-cylinder protection device for falling roof beam construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220450673U (en) |
-
2023
- 2023-06-23 CN CN202321610739.5U patent/CN220450673U/en active Active
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