CN116253245A - High-precision hoisting and positioning device and method for bridge swivel - Google Patents
High-precision hoisting and positioning device and method for bridge swivel Download PDFInfo
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- CN116253245A CN116253245A CN202211089011.2A CN202211089011A CN116253245A CN 116253245 A CN116253245 A CN 116253245A CN 202211089011 A CN202211089011 A CN 202211089011A CN 116253245 A CN116253245 A CN 116253245A
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- spherical hinge
- frame
- lower spherical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/46—Position indicators for suspended loads or for crane elements
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention relates to a high-precision lifting and positioning device and a positioning method for a bridge swivel, comprising a lifting frame, a dial gauge measuring device, a laser emitting device, a crane with hydraulic oil pump control, a main control console and a fixing device, wherein the lifting frame adopts an I-shaped steel of four limbs as a stand column, the bottom of the stand column is fixed with a foundation bolt buried in advance, and the middle lower part of the stand column is provided with a height fine adjusting device. The positioning method comprises the following steps: installing and centering leveling a hoisting frame; centering the lower spherical hinge; adjusting the horizontal position of the lower spherical hinge; adjusting the vertical position of the lower spherical hinge; the lower spherical hinge is fixed; the bolt and the upper spherical hinge are installed; the frame and the crane are returned to the ground. Compared with the prior art, the invention has the advantages that: 1. accurate positioning, automatic adjustment and high construction efficiency. 2. The material can be recycled, and is environment-friendly and energy-saving. 3. The adjustment is quick and rapid, and the construction progress can be effectively accelerated. 4. The application scope is wide, and the whole lifting device can almost cover all accurate lifting in the swivel construction process.
Description
Technical Field
The invention relates to a high-precision hoisting and positioning device and a positioning method for a bridge swivel.
Background
The traditional swivel construction hoisting generally adopts a steel skeleton, is used for coarse positioning before positioning of the lower spherical hinge, firstly carries out coarse adjustment on the steel skeleton, then hoists the lower spherical hinge onto the steel skeleton, and carries out accurate positioning on the lower spherical hinge through a fine threaded rod. And then hoisting and fine-tuning the bolt, the upper spherical hinge and the slideway in sequence. Because the precision of the whole adjustment process is judged by only depending on instruments such as a level gauge, a total station and the like, the operation of the instrument is complicated, the adjustment work is frequent, the measurement quantity is increased abruptly, the adjustment workload is greatly increased, the work efficiency is reduced, and the construction period is delayed.
Therefore, a high-precision lifting and positioning device and a high-precision lifting and positioning method for the bridge swivel are needed to be researched.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a high-precision hoisting and positioning device and a positioning method for a bridge swivel.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the high-precision lifting and positioning device for the bridge swivel comprises a lifting frame, a dial indicator measuring device, a laser emitting device, a crane with hydraulic oil pump control, a main control console and a fixing device, wherein the lifting frame adopts limb I-shaped steel as a stand column, the bottom of the stand column is fixed with a foundation bolt buried in advance, and the middle lower part of the stand column is provided with a height fine adjustment device;
the upper part of the upright post is welded through angle steel and I-shaped steel to form a square plane frame, the plane frame comprises a large longitudinal rail, a large transverse rail is arranged in the middle of the plane frame, and the large transverse rail moves along the large longitudinal rail; the bottom of the large transverse rail is provided with a movable frame, the movable frame moves along the large transverse rail, and the movable frame comprises a small longitudinal rail and a small transverse rail;
the laser emission device is positioned at the center of the movable frame, the laser is vertically projected downwards, the center of the top of the planar frame is provided with a frame bubble device, and the frame bubble device is positioned at the center of the top of the large transverse rail;
the crane is arranged on the small longitudinal rail and the small transverse rail, and the lower end of the crane is provided with a flexible steel cable.
As a preferable scheme, two cranes are respectively arranged on the small longitudinal rail and the small transverse rail; each crane can work independently or can work cooperatively and jointly with each other.
As a preferable scheme, the dial indicator measuring device is fixed on a tripod with the dial indicator measuring device through a triangular base, the pointer of the micrometer is upwards and can rotate 360 degrees around a central rod, and the tripod is also provided with a laser device and a leveling bubble device which vertically project downwards.
As a preferable scheme, the dial indicator measuring device is placed under the spherical hinge, the dial indicator pointer is contacted with the bottom of the spherical hinge, and the measured data is directly transmitted to the main control console.
As a preferable scheme, the main control platform is connected with the crane and the dial indicator measuring device, and the three are in online cooperative work.
As a preferable scheme, the upper surface of the spherical hinge is vertically provided with hoisting points in a quartering way.
The positioning method of the high-precision lifting positioning device for the bridge swivel specifically comprises the following steps:
1) Hoisting frame installation and centering leveling: firstly, selecting a proper hoisting frame according to the size of a lower spherical hinge, embedding corresponding foundation bolts for facilitating the fixation of the frame based on the size of the hoisting frame and the designed storage position of the lower spherical hinge, then enabling the whole moving frame center to coincide with the designed position of the spherical hinge center by means of a laser emitting device and a bubble device at the center of the frame and combining a height fine-tuning device on an upright post, ensuring the whole moving frame center to be completely horizontal, and finally fixing the moving frame position;
2) Centering the lower spherical hinge: the distance between the crane and the center of the movable frame is adjusted according to the distance between the hoisting point and the center of the spherical hinge, so that the hoisting point and the center of the movable frame are equal, and finally the position of the crane is fixed; the flexible steel cable is respectively connected with four hoisting points, the lower spherical hinge is hoisted until the lower spherical hinge is approximately horizontal, and after the inertial movement of the lower spherical hinge is stable, the center of the spherical hinge, the center of the movable frame and the center of the spherical hinge design position are overlapped;
3) Adjusting the horizontal position of the lower spherical hinge: the main control platform is started and connected with the crane, the dial gauge measuring device is placed under the lower spherical hinge, the center of the dial gauge measuring device coincides with the center of the lower spherical hinge, the bubble of the dial gauge measuring device is adjusted to be centered, the height of the dial gauge measuring device is adjusted to be in contact with the plane of the lower spherical hinge, and the measuring device is connected with the main control platform; after all the equipment is started, the dial indicator data are zeroed, so that after the dial indicator slowly rotates for 360 degrees, the master control console monitors and analyzes the dial indicator data, analyzes and calculates the specific elevation displacement to be adjusted through the elevation change condition of each point, feeds back the specific elevation displacement to the crane at the upper part, and makes a reaction by the crane, so that the horizontal elevation error of each point at the bottom of the lower spherical hinge is adjusted within an allowable range;
4) Adjusting the vertical position of the lower spherical hinge: when the elevation error of each point in the plane of the lower spherical hinge is adjusted to be within an allowable range, all cranes respond synchronously, and the lower spherical hinge is adjusted to the vertical height of the design requirement;
5) The lower spherical hinge is fixed: after the horizontal direction and the vertical direction are adjusted in place, the height of the limiting scaffold is adjusted to be in contact with the lower spherical hinge, and spot welding is carried out on the limiting scaffold and the lower spherical hinge;
6) The bolt and the upper spherical hinge are installed;
7) The frame and the crane are returned to the ground.
As a preferable scheme, the spherical hinge can be lifted up firstly in the centering of the lower spherical hinge, then the position of each crane is adjusted along the small longitudinal rail and the small transverse rail to finish the centering work, and finally the positions of the cranes are fixed.
Compared with the prior art, the invention has the advantages that: 1. accurate positioning, automatic adjustment and high construction efficiency. 2. The material can be recycled, and is environment-friendly and energy-saving. 3. The adjustment is quick and rapid, and the construction progress can be effectively accelerated. 4. The application scope is wide, and the whole lifting device can almost cover all accurate lifting in the swivel construction process.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a schematic diagram of a dial gauge measuring device according to the present invention.
Fig. 4 is a schematic structural view of the column height fine adjustment device of the present invention.
Fig. 5 and 6 are large views of the track according to the present invention.
As shown in the figure: 1-hoisting a frame; 2-dial gauge measuring device; 3-a crane; 4-flexible steel cords; 5-limiting support seats; 6, a main control desk; 7-hoisting points; 11-large longitudinal rails; 12-large transverse rails; 13-small longitudinal rails; 14-small transverse rails; 15-a laser emitting device; 16-frame bubble means; 17-height fine tuning device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the product of the present invention is conventionally put when used, it is merely for convenience of describing the present invention and simplifying the description, and it does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang" and the like, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "plurality" means at least 2.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in the figure, the high-precision lifting and positioning device for the bridge swivel comprises a lifting frame 1, a dial gauge measuring device 2, a laser emitting device 15, a crane 3 with hydraulic oil pump control, a main control console 6 and a fixing device, wherein the lifting frame 1 adopts an I-shaped steel of four limbs as a stand column, the bottom of the stand column is fixed with a foundation bolt buried in advance, and a height fine adjusting device 17 is arranged at the middle lower part of the stand column;
a square plane frame is formed above the upright post through welding angle steel and I-shaped steel, the plane frame comprises a large longitudinal rail 11, a large transverse rail 12 is arranged in the middle of the plane frame, and the large transverse rail 12 moves along the large longitudinal rail 11; the bottom of the large transverse rail 12 is provided with a moving frame, the moving frame moves along the large transverse rail 12, and the moving frame comprises a small longitudinal rail 13 and a small transverse rail 14;
the laser emitting device 15 is positioned at the center of the moving frame, the laser is vertically projected downwards, the center of the top of the plane frame is provided with a frame bubble device 16, and the frame bubble device 16 is positioned at the center of the top of the large transverse rail 12;
the crane 3 is arranged on the small longitudinal rails 13 and the small transverse rails 14, and a flexible steel cable is arranged at the lower end of the crane 3.
Two cranes 3 are respectively arranged on the small longitudinal rails 13 and the small transverse rails 14; each crane 3 can work independently or can work in cooperation with each other.
The dial gauge measuring device 2 is fixed on a tripod with the dial gauge measuring device through a triangular base, a pointer of the micrometer is upward and can rotate 360 degrees around a center rod, and the tripod is also provided with a laser device and a leveling bubble device which vertically project downwards.
The dial indicator measuring device 2 is placed under the spherical hinge, the dial indicator pointer is contacted with the bottom of the spherical hinge, and measured data are directly transmitted to the main control console 6.
The main control console 6 is connected with the crane 3 and the dial indicator measuring device 2, and the three are in online cooperative work.
The upper surface of the spherical hinge is vertically provided with hoisting points 7 in a quartering way.
The positioning method of the high-precision lifting positioning device for the bridge swivel specifically comprises the following steps:
1) Hoisting frame installation and centering leveling: firstly, selecting a proper hoisting frame according to the size of a lower spherical hinge, embedding corresponding foundation bolts for facilitating the fixation of the frame based on the size of the hoisting frame and the designed storage position of the lower spherical hinge, then enabling the whole moving frame center to coincide with the designed position of the spherical hinge center by means of a laser emitting device and a bubble device at the center of the frame and combining a height fine-tuning device on an upright post, ensuring the whole moving frame center to be completely horizontal, and finally fixing the moving frame position;
2) Centering the lower spherical hinge: the distance between the crane and the center of the movable frame is adjusted according to the distance between the hoisting point and the center of the spherical hinge, so that the hoisting point and the center of the movable frame are equal, and finally the position of the crane is fixed; the flexible steel cable is respectively connected with four hoisting points, the lower spherical hinge is hoisted until the lower spherical hinge is approximately horizontal, and after the inertial movement of the lower spherical hinge is stable, the center of the spherical hinge, the center of the movable frame and the center of the spherical hinge design position are overlapped;
3) Adjusting the horizontal position of the lower spherical hinge: the main control platform is started and connected with the crane, the dial gauge measuring device is placed under the lower spherical hinge, the center of the dial gauge measuring device coincides with the center of the lower spherical hinge, the bubble of the dial gauge measuring device is adjusted to be centered, the height of the dial gauge measuring device is adjusted to be in contact with the plane of the lower spherical hinge, and the measuring device is connected with the main control platform; after all the equipment is started, the dial indicator data are zeroed, so that after the dial indicator slowly rotates for 360 degrees, the master control console monitors and analyzes the dial indicator data, analyzes and calculates the specific elevation displacement to be adjusted through the elevation change condition of each point, feeds back the specific elevation displacement to the crane at the upper part, and makes a reaction by the crane, so that the horizontal elevation error of each point at the bottom of the lower spherical hinge is adjusted within an allowable range;
4) Adjusting the vertical position of the lower spherical hinge: when the elevation error of each point in the plane of the lower spherical hinge is adjusted to be within an allowable range, all cranes respond synchronously, and the lower spherical hinge is adjusted to the vertical height of the design requirement;
5) The lower spherical hinge is fixed: after the horizontal direction and the vertical direction are adjusted in place, the height of the limiting scaffold is adjusted to be in contact with the lower spherical hinge, and spot welding is carried out on the limiting scaffold and the lower spherical hinge;
6) The bolt and the upper spherical hinge are installed;
7) The frame and the crane are returned to the ground.
The lower spherical hinge can be lifted firstly, then the positions of the cranes are adjusted along the small longitudinal rails and the small transverse rails to finish centering, and finally the positions of the cranes are fixed.
The utility model provides a bridge is turned with high accuracy hoist and mount positioner, including hoist and mount frame 1, amesdial measuring device 2, master control board 6, take hydraulic oil pump control's loop wheel machine 3, with the help of amesdial measuring device 2 monitor spherical hinge horizontal height's change information, through master control board 6 computer data processing system analysis definitely adjust to required displacement adjustment volume of target position department and adjustment direction, feed back this adjustment information to loop wheel machine 3, by its accurate hoist and mount to target position again, this adjustment process can be automatic quick accurate going on, the work load of spherical hinge installation has significantly reduced.
The hoisting frame 1 adopts four-limb steel upright posts, comprises two plane frames, namely a plane frame and a movable frame, and is provided with a longitudinal rail and a transverse rail respectively. The crane 3 is mounted on and can slide along the large transverse rail 12, the large transverse rail 12 can slide along the large longitudinal rail 11, the device can cover the movement in a plane by virtue of the longitudinal and transverse rails, and the movement of the crane 3 along the small transverse rail 14 and the small longitudinal rail 13 can be suitable for hoisting spherical hinges with different sizes.
The hoisting frame 1 is installed, the horizontal position is approximately in the center of the spherical hinge, the vertical direction is approximately horizontal, and finer centering and leveling work can be completed according to the laser emitting device 15 and the frame bubble device 16 in the movable frame. But it is worth noting that the foundation bolts reserved at the bottom of the frame and the bearing platform are firmly ensured, and displacement is not generated in the hoisting process.
The dial gauge measuring device 2 also rapidly adjusts the center to coincide with the center of the lower spherical hinge and the laser projection point of the frame through a laser device of the dial gauge measuring device, and finely adjusts the center to be centered by the horizontal bubble.
The dial indicator measuring device 2, the main control table 6 and the crane 3 are a circulating linkage system, signals measured by the measuring device are transmitted to a computer of the main control table 6, the signals are transmitted to the crane 3 by the computer after being processed, and an adjusting command is executed by the crane 3, the measuring device measures again and transmits to the computer, and the system is circulated until the signals are adjusted in place.
When the invention is implemented, the original low-efficiency manual adjustment is abandoned, and the working efficiency is fundamentally improved by means of an automatic idea. The whole process is approximately as follows: the measuring device, the data processing system and the hoisting adjustment process are circularly operated until the three are adjusted in place. Through the dial indicator measuring device placed under the spherical hinge, the dial indicator measuring device rotates slowly for 360 degrees circularly, whether each point at the bottom of the lower spherical hinge is in a horizontal plane or not is judged, meanwhile, measured data are transmitted to a computer data processing system of a main control console for analysis, the required displacement adjustment quantity at the target position is definitely adjusted, the adjustment information is fed back to a crane controlled by a hydraulic oil pump, the crane is accurately hoisted to the target position, automatic reciprocating circulation is achieved, and after the horizontal height is adjusted in place, the cranes at the upper sides of all hoisting points are synchronously controlled, and the spherical hinge is hoisted to the original design height. The adjusting process can be automatically, quickly and accurately carried out, so that the workload of the spherical hinge installation process is greatly reduced, the working efficiency is improved, and the construction progress is accelerated.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (8)
1. Bridge is turned with high accuracy hoist and mount positioner, including hoist and mount frame, amesdial measuring device, laser emission device, take loop wheel machine, master control stand and the fixing device of hydraulic oil pump control, its characterized in that: the hoisting frame adopts limb I-shaped steel as a stand column, the bottom of the stand column is fixed with a pre-buried foundation bolt, and a height fine adjustment device is arranged at the middle lower part of the stand column;
the upper part of the upright post is welded by angle steel and I-shaped steel to form a square plane frame, the plane frame comprises a large longitudinal rail, a large transverse rail is arranged in the middle of the plane frame, and the large transverse rail moves along the large longitudinal rail; the bottom of the large transverse rail is provided with a movable frame, the movable frame moves along the large transverse rail, and the movable frame comprises a small longitudinal rail and a small transverse rail;
the laser emission device is positioned at the center of the movable frame, the laser is vertically projected downwards, the center of the top of the planar frame is provided with a frame bubble device, and the frame bubble device is positioned at the center of the top of the large transverse rail;
the crane is arranged on the small longitudinal rail and the small transverse rail, and the lower end of the crane is provided with a flexible steel cable.
2. The high-precision lifting and positioning device for the bridge swivel according to claim 1, wherein: two cranes are respectively arranged on the small longitudinal rail and the small transverse rail; each crane can work independently or can work cooperatively and jointly with each other.
3. The high-precision lifting and positioning device for the bridge swivel according to claim 2, wherein: the dial gauge measuring device is fixed on a tripod with the dial gauge measuring device through a triangular base, a pointer of the micrometer is upward and can rotate around a central rod by 360 degrees, and the tripod is also provided with a laser device and a leveling bubble device which vertically project downwards.
4. The high-precision lifting and positioning device for the bridge swivel according to claim 3, wherein: the dial indicator measuring device is placed under the spherical hinge, the dial indicator pointer is contacted with the bottom of the spherical hinge, and measured data are directly transmitted to the main control console.
5. The high-precision lifting and positioning device for the bridge swivel according to claim 4, wherein: the main control console is connected with the crane and the dial indicator measuring device, and the three are in online cooperative work.
6. The high-precision lifting and positioning device for the bridge swivel according to claim 5, wherein: and the upper surface of the spherical hinge is vertically provided with hoisting points in a quartering way.
7. The positioning method of the high-precision lifting positioning device for the bridge swivel is characterized by comprising the following steps of:
1) Hoisting frame installation and centering leveling: firstly, selecting a proper hoisting frame according to the size of a lower spherical hinge, embedding corresponding foundation bolts for facilitating the fixation of the frame based on the size of the hoisting frame and the designed storage position of the lower spherical hinge, then enabling the whole moving frame center to coincide with the designed position of the spherical hinge center by means of a laser emitting device and a bubble device at the center of the frame and combining a height fine-tuning device on an upright post, ensuring the whole moving frame center to be completely horizontal, and finally fixing the moving frame position;
2) Centering the lower spherical hinge: the distance between the crane and the center of the movable frame is adjusted according to the distance between the hoisting point and the center of the spherical hinge, so that the hoisting point and the center of the movable frame are equal, and finally the position of the crane is fixed; the flexible steel cable is respectively connected with four hoisting points, the lower spherical hinge is hoisted until the lower spherical hinge is approximately horizontal, and after the inertial movement of the lower spherical hinge is stable, the center of the spherical hinge, the center of the movable frame and the center of the spherical hinge design position are overlapped;
3) Adjusting the horizontal position of the lower spherical hinge: the main control platform is started and connected with the crane, the dial gauge measuring device is placed under the lower spherical hinge, the center of the dial gauge measuring device coincides with the center of the lower spherical hinge, the bubble of the dial gauge measuring device is adjusted to be centered, the height of the dial gauge measuring device is adjusted to be in contact with the plane of the lower spherical hinge, and the measuring device is connected with the main control platform; after all the equipment is started, the dial indicator data are zeroed, so that after the dial indicator slowly rotates for 360 degrees, the master control console monitors and analyzes the dial indicator data, analyzes and calculates the specific elevation displacement to be adjusted through the elevation change condition of each point, feeds back the specific elevation displacement to the crane at the upper part, and makes a reaction by the crane, so that the horizontal elevation error of each point at the bottom of the lower spherical hinge is adjusted within an allowable range;
4) Adjusting the vertical position of the lower spherical hinge: when the elevation error of each point in the plane of the lower spherical hinge is adjusted to be within an allowable range, all cranes respond synchronously, and the lower spherical hinge is adjusted to the vertical height of the design requirement;
5) The lower spherical hinge is fixed: after the horizontal direction and the vertical direction are adjusted in place, the height of the limiting scaffold is adjusted to be in contact with the lower spherical hinge, and spot welding is carried out on the limiting scaffold and the lower spherical hinge;
6) The bolt and the upper spherical hinge are installed;
7) The frame and the crane are returned to the ground.
8. The positioning method of the high-precision hoisting and positioning device for the bridge swivel, according to claim 7, is characterized in that: the lower spherical hinge can be lifted firstly, then the positions of the cranes are adjusted along the small longitudinal rails and the small transverse rails to finish centering, and finally the positions of the cranes are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211089011.2A CN116253245A (en) | 2022-09-07 | 2022-09-07 | High-precision hoisting and positioning device and method for bridge swivel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211089011.2A CN116253245A (en) | 2022-09-07 | 2022-09-07 | High-precision hoisting and positioning device and method for bridge swivel |
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| CN116253245A true CN116253245A (en) | 2023-06-13 |
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| CN202211089011.2A Pending CN116253245A (en) | 2022-09-07 | 2022-09-07 | High-precision hoisting and positioning device and method for bridge swivel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117869665A (en) * | 2024-03-11 | 2024-04-12 | 山西省城乡规划设计研究院有限公司 | Positioning device for ground laying pipeline |
-
2022
- 2022-09-07 CN CN202211089011.2A patent/CN116253245A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117869665A (en) * | 2024-03-11 | 2024-04-12 | 山西省城乡规划设计研究院有限公司 | Positioning device for ground laying pipeline |
| CN117869665B (en) * | 2024-03-11 | 2024-05-24 | 山西省城乡规划设计研究院有限公司 | Positioning device for ground laying pipeline |
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