CN219710103U - Transverse prestress tensioning trolley for cantilever casting box girder - Google Patents
Transverse prestress tensioning trolley for cantilever casting box girder Download PDFInfo
- Publication number
- CN219710103U CN219710103U CN202320705341.3U CN202320705341U CN219710103U CN 219710103 U CN219710103 U CN 219710103U CN 202320705341 U CN202320705341 U CN 202320705341U CN 219710103 U CN219710103 U CN 219710103U
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- Prior art keywords
- sliding
- tensioning
- lifting frame
- cantilever
- fixedly arranged
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- 238000005266 casting Methods 0.000 title claims abstract description 16
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses a transverse prestress tensioning trolley for a cantilever casting box girder, which comprises a lifting frame, wherein the lower end of the lifting frame is fixedly provided with the lifting frame; an electric hoist is fixedly arranged at the lower end of the suspension frame, and a tensioning jack is fixedly arranged at the lower end of the electric hoist; and a translation mechanism for translating the position of the tensioning jack between the lifting frame and the operating platform. The utility model can ensure that the tensioning jack stably moves when the tensioning jack adjusts the position, so that a tensioning operator can very easily keep the center of the tensioning jack consistent with the center of the steel strand, thereby facilitating the tensioning operation.
Description
Technical Field
The utility model relates to the technical field of tensioning trolleys, in particular to a transverse prestress tensioning trolley for a cantilever casting box girder.
Background
The patent application number is CN202121787037.5, and the trolley device for the cantilever casting box girder comprises a trolley truss, a weight box and a hanging basket; the trolley truss comprises a counterweight table and a lifting frame which are fixedly connected, the counterweight box is positioned on the counterweight table, and the hanging basket is connected with the lifting frame; the bottom of the counterweight table is provided with rollers which are matched with trolley tracks on the cantilever casting box girder; the hanging basket comprises an electric hoist, a tensioning jack and an operation platform; two ends of the electric hoist are respectively fixed with the lifting frame and the tensioning jack; the operation platform is connected with the lifting frame. When the trolley truss moves under the drive of the roller, the hanging basket is driven to move, so that the hanging basket does not need to be hung for many times, and the construction efficiency and the construction safety are improved; the electric hoist is used for fixing the tensioning jack and the lifting frame, so that the center of the tensioning jack is consistent with the center of the steel strand when the transverse prestressed tendon is tensioned, and the tensioning risk is reduced. The problem of how to improve the efficiency of the box girder bridge construction on the basis of ensuring the safety of constructors is solved;
however, when in tensioning operation, the position of the tensioning jack needs to be adjusted, and as the tensioning jack is only lifted by the rope of the electric hoist, the swinging condition is easy to occur, the operation difficulty is increased, and the tensioning jack and the center of the steel strand are not easy to keep consistent for butt joint.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a transverse prestress tensioning trolley for a cantilever casting box girder, which can ensure that a tensioning jack stably moves when the tensioning jack adjusts the position, so that a tensioning operator can very easily keep the tensioning jack consistent with the center of a steel strand, and tensioning operation is convenient.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the transverse prestress tensioning trolley for the cantilever casting box girder comprises a lifting frame, wherein a cantilever frame is fixedly arranged at the lower end of the lifting frame;
an electric hoist is fixedly arranged at the lower end of the suspension frame, and a tensioning jack is fixedly arranged at the lower end of the electric hoist;
and a translation mechanism for translating the position of the tensioning jack between the lifting frame and the operating platform.
Preferably, the upper end of the operation platform is symmetrically and fixedly provided with a protective net.
Preferably, the translation mechanism comprises two vertical rods symmetrically arranged between the lifting frame and the operation platform, the upper end and the lower end of each vertical rod are connected with the lifting frame and the operation platform through sliding components, a second sliding sleeve is connected to each vertical rod in a sliding mode, a cross rod is fixedly connected between the second sliding sleeves, a first sliding sleeve is connected to each cross rod in a sliding mode, and a mounting ring is fixedly connected to the upper end of each first sliding sleeve.
Preferably, a first reinforcing frame is fixedly arranged between the lifting frame and the suspension frame, and a second reinforcing frame is fixedly arranged between the suspension frame and the operation platform.
Preferably, the sliding component consists of a sliding rail and a sliding seat, and the vertical rod is positioned at the upper end of the sliding seat.
Preferably, the first sliding sleeve and the second sliding sleeve are fixed through locking bolts.
The utility model has the following beneficial effects:
1. through the arrangement of the protective net, the protective effect is achieved, the safety of operators on an operation platform can be protected, and the situation that the operators fall off in the operation process is avoided;
2. through the setting of translation mechanism, can guarantee that the tensioning jack steadily removes when tensioning jack adjustment position for tensioning operator can very easy messenger tensioning jack keeps unanimous with the steel strand wires center, in order to carry out the tensioning operation.
Drawings
FIG. 1 is a schematic diagram of a transverse prestress tensioning trolley for a cantilever casting box girder, which is provided by the utility model;
fig. 2 is a schematic structural view of a transverse slide bar of a transverse prestress tensioning trolley for a cantilever casting box girder.
In the figure: 1 lifting frame, 2 suspension frame, 3 first reinforcement frame, 4 electric block, 5 tensioning jack, 6 collar, 7 montant, 8 operation platform, 9 slip subassembly, 10 protection network, 11 second reinforcement frame, 12 horizontal pole, 13 first sliding sleeve, 14 second sliding sleeve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-2, a transverse prestress tensioning trolley for a cantilever casting box girder comprises a lifting frame 1, wherein a lifting frame 2 is fixedly arranged at the lower end of the lifting frame 1, an operation platform 8 is fixedly arranged at the lower end of the lifting frame 2, a first reinforcing frame 3 is fixedly arranged between the lifting frame 1 and the lifting frame 2, and a second reinforcing frame 11 is fixedly arranged between the lifting frame 2 and the operation platform 8;
the upper end of the operation platform 8 is symmetrically and fixedly provided with a protective net 10;
an electric hoist 4 is fixedly arranged at the lower end of the suspension bracket 2, and a tensioning jack 5 is fixedly arranged at the lower end of the electric hoist 4;
the translation mechanism is used for translating the position of the tensioning jack 5 between the lifting frame 1 and the operating platform 8 and comprises two vertical rods 7 symmetrically arranged between the lifting frame 1 and the operating platform 8, the upper end and the lower end of each vertical rod 7 are connected with the lifting frame 1 and the operating platform 8 through sliding assemblies 9, the vertical rods 7 are connected with second sliding sleeves 14 in a sliding manner, a cross rod 12 is fixedly connected between the two second sliding sleeves 14, a first sliding sleeve 13 is connected onto the cross rod 12 in a sliding manner, and the upper end of each first sliding sleeve 13 is fixedly connected with a mounting ring 6;
the first sliding sleeve 13 and the second sliding sleeve 14 are fixed through locking bolts;
the sliding component 9 consists of a sliding rail and a sliding seat, and the vertical rod 7 is positioned at the upper end of the sliding seat.
Working principle:
when the transverse prestressed tendons are stretched, constructors are located on the operation platform 8, the stretching jack 5 is fixed with ropes of the electric hoist 4, when the stretching jack 5 is adjusted to be in stretching operation, the stretching jack 5 slides along the vertical rods 7 through the second sliding sleeve 14 when moving up and down, the stability of vertical movement of the stretching jack 5 is guaranteed, the stretching jack 5 slides along the transverse rods 12 through the first sliding sleeve 13 when moving left and right, the stability of the transverse movement of the stretching jack 5 is guaranteed, after the position is determined, the position of the stretching jack 5 is fixed through the locking bolts, and when the position of the stretching jack 5 in the horizontal direction is adjusted through the sliding assembly 9, the stretching jack 5 and the center of a steel strand are kept consistent by stretching operators very easily, and the quality and the construction safety of personnel are guaranteed.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (6)
1. The transverse prestress tensioning trolley for the cantilever casting box girder comprises a lifting bracket (1) and is characterized in that,
a suspension bracket (2) is fixedly arranged at the lower end of the lifting bracket (1), and an operation platform (8) is fixedly arranged at the lower end of the suspension bracket (2);
an electric hoist (4) is fixedly arranged at the lower end of the suspension bracket (2), and a tensioning jack (5) is fixedly arranged at the lower end of the electric hoist (4);
and a translation mechanism for translating the position of the tensioning jack (5) between the lifting frame (1) and the operating platform (8).
2. The transverse prestress tensioning trolley for the cantilever casting box girder according to claim 1, wherein the upper end of the operating platform (8) is symmetrically and fixedly provided with a protective net (10).
3. The cantilever casting box girder transverse prestress tensioning trolley according to claim 1, characterized in that the translation mechanism comprises two vertical rods (7) symmetrically arranged between a lifting frame (1) and an operation platform (8), the upper end and the lower end of each vertical rod (7) are connected with the lifting frame (1) and the operation platform (8) through sliding components (9), a second sliding sleeve (14) is connected to each vertical rod (7) in a sliding manner, a cross rod (12) is fixedly connected between the two second sliding sleeves (14), a first sliding sleeve (13) is connected to each cross rod (12) in a sliding manner, and a mounting ring (6) is fixedly connected to the upper end of each first sliding sleeve (13).
4. The transverse prestress tensioning trolley for the cantilever box girder according to claim 1, wherein a first reinforcing frame (3) is fixedly arranged between the lifting frame (1) and the cantilever frame (2), and a second reinforcing frame (11) is fixedly arranged between the cantilever frame (2) and the operating platform (8).
5. A cantilever casting girder transverse prestress tensioning trolley according to claim 3, characterized in that the sliding component (9) consists of a sliding rail and a sliding seat, and the vertical rod (7) is positioned at the upper end of the sliding seat.
6. A cantilever-casting girder transverse prestress tensioning trolley according to claim 3, characterized in that the first sliding sleeve (13) and the second sliding sleeve (14) are both fixed by locking bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320705341.3U CN219710103U (en) | 2023-04-03 | 2023-04-03 | Transverse prestress tensioning trolley for cantilever casting box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320705341.3U CN219710103U (en) | 2023-04-03 | 2023-04-03 | Transverse prestress tensioning trolley for cantilever casting box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219710103U true CN219710103U (en) | 2023-09-19 |
Family
ID=88015427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320705341.3U Active CN219710103U (en) | 2023-04-03 | 2023-04-03 | Transverse prestress tensioning trolley for cantilever casting box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219710103U (en) |
-
2023
- 2023-04-03 CN CN202320705341.3U patent/CN219710103U/en active Active
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| GR01 | Patent grant | ||
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