CN211034860U - Hydraulic lifting construction device for steel structure net rack - Google Patents
Hydraulic lifting construction device for steel structure net rack Download PDFInfo
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- CN211034860U CN211034860U CN201921752769.3U CN201921752769U CN211034860U CN 211034860 U CN211034860 U CN 211034860U CN 201921752769 U CN201921752769 U CN 201921752769U CN 211034860 U CN211034860 U CN 211034860U
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Abstract
The utility model belongs to the technical field of promotion, installation engineering of large-span steel structure rack, specifically a steel structure rack hydraulic lifting construction operation device. Including promoting platform and promotion hoisting point, the promotion platform include the support bracket fixed with the structure, it is pre-buried in the structure to support the bracket, both ends stretch out the structure around the support bracket both ends, it is preceding to support around the bracket two stretch out to serve respectively welded fastening, two back stands, it is preceding, the top welding of two back stands promotes the platform roof beam, it has the leading truck to promote platform roof beam front end central line upside welding, promote platform roof beam front end extension front column, promote the extension of platform roof beam and serve and install hydraulic lifting mechanism, hydraulic lifting mechanism passes through the steel strand wires and promotes the hoisting point and be connected. The utility model discloses a hydraulic pressure lifting mechanism is as promoting machines, and flexible steel strand wires are as the bearing rigging. The hydraulic lifter is of a core-through structure, and has the advantages of safety, reliability, light weight of the bearing part, transportation and convenient installation.
Description
Technical Field
The utility model belongs to the technical field of promotion, installation engineering of large-span steel structure rack, specifically a steel structure rack hydraulic lifting construction operation device.
Background
Along with rapid development of economy and continuous increase of air transportation freight volume, the airfields including branch airports are continuously expanded to form single airport buildings, the span of a roof structure is increased along with the increase of the building area, the use frequency of a large-span building steel net rack structure roof is increased, and the installation method of the steel structure net rack is gradually improved.
In the past, the steel structure net rack is mainly spliced, installed or welded at high altitude by a vehicle crane hoisting prefabricated part, the construction progress is slow, the potential safety hazard of high-altitude operation is large, along with the progress of science and technology, people gradually improve the hoisting process, a construction scheme that a ground assembling net rack structure is lifted by hydraulic pressure is adopted, the net rack assembling quality is guaranteed, the workload of high-altitude operation is greatly reduced, the construction period is guaranteed, the investment is saved, and the construction safety is greatly improved.
Disclosure of Invention
The utility model discloses a solve above-mentioned problem, provide a steel construction rack hydraulic lifting construction operation device.
The utility model adopts the following technical proposal: the utility model provides a steel construction rack hydraulic lifting construction operation device, including promoting platform and promotion hoisting point, the promotion platform include with the fixed support bracket of structure, it is pre-buried in the structure to support the bracket, both ends stretch out the structure around the support bracket both ends, it is preceding to support around the bracket two and stretch out to serve respectively welded fastening, two back stands, it is preceding, the top welding of two back stands promotes the platform roof beam, it has the leading truck to promote platform roof beam front end central line upside welding, it extends the front column to promote platform roof beam front end, the extension of promoting the platform roof beam is served and is installed hydraulic lifting device, hydraulic lifting device passes through steel strand wires and promotes the hoisting point and be connected.
Furthermore, the lifting hoisting point comprises a welding ball, the bottom of the welding ball is provided with a stiffening plate and a bottom plate which are connected with the bottom anchor, the top of the welding ball is provided with a steel pipe which is connected with a steel strand, and the welding ball is welded with all rod pieces of the surrounding steel structure net rack.
Further, the leading truck includes the steel column of vertical setting, and steel column bottom and lift platform roof beam welded fastening, U type groove is installed at the steel column top.
Furthermore, the hydraulic lifter is of a core-through structure, a steel strand penetrates from the bottom of the hydraulic lifter to the top of the hydraulic lifter, and the upper end of the steel strand is fixed with the hydraulic lifter through a chuck and an anchor sheet.
Furthermore, a stroke sensor is installed on the hydraulic lifter and connected with a computer, and the computer is connected with a lifter control valve of the hydraulic lifter.
Compared with the prior art, the utility model discloses a hydraulic pressure lifting mechanism is as promoting machines, and flexible steel strand wires are as bearing rigging. The hydraulic lifter is of a core-through structure, steel strands are used as lifting rigging, the hydraulic lifter has the unique advantages of safety, reliability, light weight of a bearing part, convenience in transportation and installation, no need of splicing in the middle and the like, and wedge-shaped anchors at two ends of the hydraulic lifter have a one-way self-locking effect.
The utility model discloses following beneficial effect has:
1. the ground assembly constructs accessories and the construction speed is accelerated;
2. the workload of overhead operation is reduced, and the potential safety hazard is greatly reduced;
3. hydraulic lifting is stable, safe and quick;
4. the construction period is shortened, and the production cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of rack lifting I;
fig. 3 is a schematic view II of the net rack lifting;
FIG. 4 is a schematic view of a lifting point;
FIG. 5 is a schematic view of a guide frame structure;
in the figure, 1-supporting brackets, 2-upright posts, 3-lifting platform beams, 4-hydraulic lifters, 5-guide frames, 6-steel strands, 7-welding balls, 8-anchors, 9-anchor connecting stiffening plates and bottom plates, 10-steel pipes, 11-steel columns and 12-U-shaped grooves.
Detailed Description
As shown in fig. 1, a steel structure rack hydraulic lifting construction operation device, including promoting platform and promotion hoisting point, the promotion platform include with the fixed support bracket 1 of structure, support bracket 1 is pre-buried in the structure, both ends stretch out the structure around the support bracket 1 both ends, support bracket 1 around two stretch out to serve respectively welded fastening have preceding, two back stands 2, it is preceding, the top welding of two back stands 2 promotes platform roof beam 3, the welding of 3 front end central lines upsides of promotion platform roof beam has leading truck 5, promote platform roof beam 3 front end and extend front column 2, promote extension of platform roof beam 3 and serve and install hydraulic lifting device 4, hydraulic lifting device 4 passes through steel strand 6 and promotes the hoisting point and be connected.
As shown in fig. 4, the lifting hoisting point comprises a welding ball 7, the bottom of the welding ball 7 is provided with a stiffening plate and a bottom plate 9 for connecting with the bottom anchor, the top of the welding ball 7 is provided with a steel pipe 10 for connecting with a steel strand, and the welding ball 7 is welded with each rod piece of the surrounding steel structure net rack.
As shown in fig. 5, the guide frame 5 includes a vertically disposed steel column, the bottom of the steel column is welded to the lifting platform beam, and a U-shaped groove is installed at the top of the steel column.
Hydraulic pressure lifting mechanism 4 is the punch-through structure, and the steel strand wires are worn out to the top from hydraulic pressure lifting mechanism 4 bottom penetration, and the steel strand wires upper end is fixed with hydraulic pressure lifting mechanism 4 through chuck and anchor piece.
The hydraulic lifter 4 is provided with a stroke sensor, the stroke sensor is connected with a computer, and the computer is connected with a lifter control valve of the hydraulic lifter 4.
The specific operation method comprises the following steps:
1. and the lifting platform and the guide frame are installed.
2. And (5) installing a hydraulic lifter and a steel strand.
3. And (5) manufacturing and welding lifting points.
4. A hydraulic lifter arrangement. And (3) selecting lifting bearing equipment according to the lifting counterforce of each lifting point and the total weight of the steel roof truss, and using the high-strength low-relaxation prestressed steel strand as a flexible bearing rigging.
5. Hydraulic system and connection form. The hydraulic pump source system provides hydraulic power for the hydraulic lifter, corresponding actions are completed under the control of various hydraulic valves, and in order to improve the universality and reliability of the hydraulic lifting equipment, the pump source hydraulic system can adopt a modular structure. And combining a plurality of modules according to the arrangement of lifting points and the number of the lifters, wherein each module takes one set of hydraulic pump source system as a core and independently controls one set of hydraulic display. The situation occurring during the lifting can be continued by replacing the modular system.
6. And (5) checking and debugging the equipment. The inspection work before debugging includes: checking the structural state of the lifting measure; inspecting electrical, oil pipe and node of equipment; removing and checking temporary fixing measures of the lifting structure; and obstacle clearing and avoiding in the lifting process are influenced. The system is debugged and checked to check whether all oil pipe joints of the hydraulic pump source system are loosened, and whether the connection of a power line and a communication cable between the control cabinet and the lifter is correct; checking whether the oil pipe connection between the pump source system and the lifter oil cylinder is correct; checking whether the main shaft rotation direction of the hydraulic pump is correct or not; and checking whether the connection between the main oil cylinder and the oil pipe of the lifter is correct or not, and whether the stop valve can stop the corresponding oil cylinder or not.
7. And (5) carrying out graded loading trial promotion. The hydraulic system equipment starts to test and lift after detecting without errors, and determines the cylinder extending and contracting pressures (considering pressure loss) required by the hydraulic lifter through theoretical calculation. The pressure of the extending cylinder is gradually increased during the trial lifting, which is 20 percent and 40 percent of the required pressure in sequence, and the pressure is continuously loaded to 100 percent under normal conditions. And suspending operation when the lifting structure starts to move, keeping system pressure, comprehensively checking a lifting equipment system and a structure system, and formally lifting on the premise of determining that the stability and safety of the whole structure are no problem.
8. And (5) formally lifting. In order to ensure the stability and safety of the lifting process, according to the structural characteristics, the lifting point oil pressure balance structural attitude adjustment, the displacement synchronous control and the grading unloading in-place can be adopted to carry out the synchronous lifting and unloading in-place control strategy. And each hydraulic lifter is provided with a set of stroke sensor for measuring the lifting displacement synchronism of each hydraulic lifter in the lifting process. And the main control computer controls the synchronism of the whole lifting process according to the displacement detection signals and the difference values of the sensors.
Claims (5)
1. The utility model provides a steel construction rack hydraulic lifting construction operation device which characterized in that: including lifting platform and promotion hoisting point, lifting platform include support bracket (1) fixed with the structure, support bracket (1) pre-buried in the structure, both ends stretch out the structure around support bracket (1) both ends, it is preceding to support two extension respectively welded fastening on the end around bracket (1), two back stands (2), it is preceding, top welding lifting platform roof beam (3) of two back stands (2), lifting platform roof beam (3) front end central line upside welding has leading truck (5), lifting platform roof beam (3) front end extends front column (2), install hydraulic lifting mechanism (4) on the extension end of lifting platform roof beam (3), hydraulic lifting mechanism (4) are connected with the promotion hoisting point through steel strand wires (6).
2. The hydraulic lifting construction device for the steel structure net rack according to claim 1, characterized in that: the lifting hoisting point comprises a welding ball (7), the bottom of the welding ball (7) is provided with a stiffening plate and a bottom plate (9) which are connected with a bottom anchor, the top of the welding ball (7) is provided with a steel pipe (10) which is connected with a steel strand, and the welding ball (7) is welded with all rod pieces of a surrounding steel structure net rack.
3. The hydraulic lifting construction device for the steel structure net rack according to claim 2, characterized in that: the guide frame (5) comprises a vertically arranged steel column (11), the bottom of the steel column (11) is fixedly welded with the lifting platform beam, and a U-shaped groove (12) is arranged at the top of the steel column (11).
4. The hydraulic lifting construction device for the steel structure net rack according to claim 3, characterized in that: the hydraulic lifter (4) is of a core-through structure, a steel strand penetrates from the bottom to the top of the hydraulic lifter (4), and the upper end of the steel strand is fixed with the hydraulic lifter (4) through a chuck and an anchor sheet.
5. The hydraulic lifting construction device for the steel structure net rack according to claim 4, characterized in that: the hydraulic lifter (4) is provided with a stroke sensor, the stroke sensor is connected with a computer, and the computer is connected with a lifter control valve of the hydraulic lifter (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921752769.3U CN211034860U (en) | 2019-10-18 | 2019-10-18 | Hydraulic lifting construction device for steel structure net rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921752769.3U CN211034860U (en) | 2019-10-18 | 2019-10-18 | Hydraulic lifting construction device for steel structure net rack |
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| Publication Number | Publication Date |
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| CN211034860U true CN211034860U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921752769.3U Active CN211034860U (en) | 2019-10-18 | 2019-10-18 | Hydraulic lifting construction device for steel structure net rack |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412061A (en) * | 2020-11-30 | 2021-02-26 | 中建五局第三建设有限公司 | Assembled rack hoisting point device |
| CN112502474A (en) * | 2020-11-27 | 2021-03-16 | 上海建工五建集团有限公司 | Dismantling device and method for indoor large steel framework |
-
2019
- 2019-10-18 CN CN201921752769.3U patent/CN211034860U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502474A (en) * | 2020-11-27 | 2021-03-16 | 上海建工五建集团有限公司 | Dismantling device and method for indoor large steel framework |
| CN112412061A (en) * | 2020-11-30 | 2021-02-26 | 中建五局第三建设有限公司 | Assembled rack hoisting point device |
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