CN216914331U - Precast beam jack adjustment and stretch-draw protector - Google Patents
Precast beam jack adjustment and stretch-draw protector Download PDFInfo
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- CN216914331U CN216914331U CN202123004225.9U CN202123004225U CN216914331U CN 216914331 U CN216914331 U CN 216914331U CN 202123004225 U CN202123004225 U CN 202123004225U CN 216914331 U CN216914331 U CN 216914331U
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- precast beam
- protection device
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- fixed support
- tensioning
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Abstract
A precast beam jack adjusting and tensioning protection device. The device comprises a fixed bracket, a transverse moving device, a longitudinal beam, a baffle plate, a traction chain block, a leveling device and a rope; the precast beam jack adjusting and tensioning protection device provided by the utility model has the beneficial effects that: the whole device can be flexibly moved by a gantry crane or a crane through a hoisting ring, the jack can be used for adjusting the transverse position and the longitudinal position through the fixed support, the operation method is simple and flexible, and the requirement of tensioning the precast beam can be met. In addition, the anti-collapse baffle is arranged on the fixed support, so that the safety risk in the tensioning process is reduced. When a plurality of steel strands are tensioned, the jack is moved quickly and efficiently, the labor intensity of operators is reduced, the construction cost is further reduced, and the economic benefit is obvious.
Description
Technical Field
The utility model belongs to the technical field of bridge construction equipment, and particularly relates to a precast beam jack adjusting and tensioning protection device.
Background
At present, with the rapid development of national economy, the large-scale engineering construction of various railway bridges, highway bridges and the like is developed in a large area, precast beams are also developed along with the development of bridge services, and a large amount of prestress tensioning construction exists in the precast beam construction.
The construction site of the precast beam is centralized, the used tensioning construction working surface is more, the tensioning construction is more frequent, the jack consumes more manpower and material resources by adopting the traditional installation method, the construction cost is higher, and the speed is slow; in addition, the construction surface is more in the beam yard, and the tensioning is relatively dangerous, so that the traditional method can not meet the requirement of the construction progress under the conditions of more operation surfaces and relatively short construction period.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide a precast beam jack adjusting and tension protecting device which has a simple structure and is fast and convenient to operate and can ensure the safety of the tensioning process.
In order to achieve the aim, the precast beam jack adjusting and tensioning protection device provided by the utility model comprises a fixed support, a transverse moving device, a longitudinal beam, a baffle plate, a traction chain block, a leveling device and a rope; the fixed bracket is of a cuboid frame structure, four corners of the bottom of the fixed bracket are respectively provided with a leveling device, and the front end and the rear end of the top surface of the fixed bracket are respectively provided with a transverse moving device; the longitudinal beam is horizontally arranged along the front-back direction, and two ends of the longitudinal beam are respectively fixed on the top surfaces of the two transverse moving devices; the longitudinal moving device is arranged on the top surface of the longitudinal beam; the upper end of the traction chain block is hung on the longitudinal moving device through a rope; the baffle covers on the front end face of the fixed support.
The precast beam jack adjusting and tensioning protection device further comprises hoisting rings arranged at the front edge and the rear edge of the top surface of the fixed support.
The fixed support is made of 20# channel steel and 60 # angle steel in a welding mode, wherein the channel steel is arranged at the front end and the rear end of the top face and used as a track of the transverse moving device, and limiting devices are arranged at two ends of the track.
The transverse moving device consists of a moving platform and trundles arranged on the bottom surface of the moving platform, and the trundles are movably arranged on the tracks of the fixed support.
The longitudinal moving device adopts a rolling shaft, and the middle part of the rope is arranged in a central hole of the rolling shaft in a penetrating way.
The longitudinal beam is composed of 12# I-steel and 50 steel pipes arranged on the top surface of the I-steel.
The baffle is made of bamboo plywood or steel plates.
The leveling device is composed of a lead screw with the diameter of 50mm and a matched nut.
Compared with the prior art, the precast beam jack adjusting and tensioning protection device provided by the utility model has the beneficial effects that: the whole device can be flexibly moved by a gantry crane or a crane through a hoisting ring, the jack can be used for adjusting the transverse position and the longitudinal position through the fixed support, the operation method is simple and flexible, and the requirement of tensioning the precast beam can be met. In addition, the anti-collapse baffle is arranged on the fixed support, so that the safety risk in the tensioning process is reduced. When a plurality of steel strands are tensioned, the jack is moved quickly and efficiently, the labor intensity of operators is reduced, the construction cost is further reduced, and the economic benefit is obvious.
Drawings
Fig. 1 is a schematic front view of a precast beam jack adjusting and tension protecting device provided by the present invention.
Fig. 2 is a schematic side view of a precast beam jack adjusting and tension protecting device provided by the present invention.
Detailed Description
The following detailed description of specific embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
As shown in fig. 1 and 2, the precast beam jack adjusting and tensioning protection device provided by the utility model comprises a fixed support 1, a transverse moving device 2, a longitudinal moving device 3, a longitudinal beam 4, a baffle plate 5, a traction chain block 6, a leveling device 8 and a rope 9; the fixed support 1 is of a cuboid frame structure, four corners of the bottom of the fixed support are respectively provided with a leveling device 8, and the front end and the rear end of the top surface of the fixed support are respectively provided with a transverse moving device 2; the longitudinal beam 4 is horizontally arranged along the front-back direction, and two ends of the longitudinal beam are respectively fixed on the top surfaces of the two transverse moving devices 2; the longitudinal moving device 3 is arranged on the top surface of the longitudinal beam 4; the upper end of the traction chain block 6 is hung on the longitudinal moving device 3 through a rope 9; the baffle 5 covers the front end face of the fixed bracket 1.
The precast beam jack adjusting and tensioning protection device further comprises hoisting rings 7 arranged at the front edge and the rear edge of the top surface of the fixed support 1.
The fixed support 1 is formed by welding 20# channel steel and 60 # angle steel, wherein the channel steel is arranged at the front end and the rear end of the top surface and used as a track of the transverse moving device 2, and two ends of the track are provided with limiting devices.
The transverse moving device 2 is composed of a moving platform and casters arranged on the bottom surface of the moving platform, and the casters are movably arranged on the track of the fixed support 1.
The longitudinal moving device 3 adopts a roller, and the middle part of the rope 9 is arranged in a central hole of the roller in a penetrating way.
The longitudinal beam 4 is composed of a No. 12I-steel and a 50 steel pipe arranged on the top surface of the I-steel.
The baffle 5 is made of bamboo plywood or steel plate.
The leveling device 8 is composed of a lead screw with the diameter of 50mm and a matched nut.
The use method of the precast beam jack adjusting and tensioning protection device provided by the utility model comprises the following steps:
when the jack needs to be moved to the next prestressed beam needing tensioning, firstly, a constructor adopts a gantry crane or a crane to hoist the precast beam jack adjusting and tensioning protection device to a proper position of the precast beam end through a hoisting ring 7, and the baffle 5 deviates from the precast beam end; the balance of the fixed support 1 is then adjusted by means of the levelling device 8 until it is brought to a stable state. Then the longitudinal moving device 3 moves to the jack along the longitudinal beam 4, the jack is lifted to a height suitable for tensioning by adopting a traction chain block 6, then a prestressed beam needing to be tensioned in the jack pair is lifted by the transverse moving device 2, then the jack, a tool anchor, a clamping piece and other auxiliary tools are installed, and finally the jack is utilized for tensioning.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a precast beam jack adjustment and stretch-draw protector which characterized in that: the precast beam jack adjusting and tensioning protection device comprises a fixed support (1), a transverse moving device (2), a longitudinal moving device (3), a longitudinal beam (4), a baffle (5), a traction chain block (6), a leveling device (8) and a rope (9); the fixing support (1) is of a cuboid-shaped frame structure, four corners of the bottom are respectively provided with a leveling device (8), and the front end and the rear end of the top surface are respectively provided with a transverse moving device (2); the longitudinal beam (4) is horizontally arranged along the front-back direction, and two ends of the longitudinal beam are respectively fixed on the top surfaces of the two transverse moving devices (2); the longitudinal moving device (3) is arranged on the top surface of the longitudinal beam (4); the upper end of the traction chain block (6) is hung on the longitudinal moving device (3) through a rope (9); the baffle (5) covers the front end face of the fixed support (1).
2. The precast beam jack adjustment and tension protection device of claim 1, wherein: the precast beam jack adjusting and tensioning protection device further comprises hoisting rings (7) arranged at the front edge and the rear edge of the top surface of the fixed support (1).
3. The precast beam jack adjustment and tension protection device of claim 1, wherein: the fixed support (1) is made of 20# channel steel and 60 # angle steel in a welding mode, wherein the channel steel is arranged at the front end and the rear end of the top face and used as a track of the transverse moving device (2), and limiting devices are arranged at two ends of the track.
4. The precast beam jack adjustment and tension protection device of claim 3, wherein: the transverse moving device (2) is composed of a moving platform and trundles arranged on the bottom surface of the moving platform, and the trundles are movably arranged on the track of the fixed support (1).
5. The precast beam jack adjustment and tension protection device of claim 1, wherein: the longitudinal moving device (3) adopts a roller, and the middle part of the rope (9) penetrates through the central hole of the roller.
6. The precast beam jack adjusting and tensioning protection device according to claim 1, wherein: the longitudinal beam (4) is composed of 12# I-steel and 50 steel pipes arranged on the top surface of the I-steel.
7. The precast beam jack adjustment and tension protection device of claim 1, wherein: the baffle (5) is made of bamboo plywood or steel plates.
8. The precast beam jack adjustment and tension protection device of claim 1, wherein: the leveling device (8) is composed of a lead screw with the diameter of 50mm and a matched nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123004225.9U CN216914331U (en) | 2021-12-02 | 2021-12-02 | Precast beam jack adjustment and stretch-draw protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123004225.9U CN216914331U (en) | 2021-12-02 | 2021-12-02 | Precast beam jack adjustment and stretch-draw protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216914331U true CN216914331U (en) | 2022-07-08 |
Family
ID=82251140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123004225.9U Active CN216914331U (en) | 2021-12-02 | 2021-12-02 | Precast beam jack adjustment and stretch-draw protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216914331U (en) |
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2021
- 2021-12-02 CN CN202123004225.9U patent/CN216914331U/en active Active
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