CN116289563A - Bailey beam installation equipment and installation method for trestle system - Google Patents
Bailey beam installation equipment and installation method for trestle system Download PDFInfo
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- CN116289563A CN116289563A CN202211723882.5A CN202211723882A CN116289563A CN 116289563 A CN116289563 A CN 116289563A CN 202211723882 A CN202211723882 A CN 202211723882A CN 116289563 A CN116289563 A CN 116289563A
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- 238000009434 installation Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 230000000712 assembly Effects 0.000 claims abstract description 22
- 238000000429 assembly Methods 0.000 claims abstract description 22
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses bailey beam installation equipment and an installation method for a trestle system, wherein the bailey beam installation equipment comprises a crawler crane main body, a lifting steel rope is arranged at the top of the crawler crane main body, a lifting beam assembly is fixedly connected to the bottom of the lifting steel rope, two stabilizing assemblies are arranged at the bottom of the lifting beam assembly, two fixing assemblies are slidably connected to the bottom of the lifting beam assembly, the lifting beam assembly comprises a lifting beam main body, a threaded rod is rotatably connected to the inside of the lifting beam main body, a second bevel gear is meshed and transmitted on the surface of the threaded rod through a first bevel gear, the technical field of bridge deck system construction and installation is related, the technical problem that the integral stability of the bailey beam cannot be guaranteed in the lifting process due to the fact that a single steel rope is fixed, meanwhile, the mode of fixing the steel rope is troublesome to operate is solved, on one hand, the integral quick fixing operation of the bailey beam is realized through the mutual cooperation of the arranged stabilizing assemblies, and on the other hand, the stability of the bailey beam in the lifting process can be improved.
Description
Technical Field
The invention relates to the technical field of bridge deck system construction and installation, in particular to bailey beam installation equipment and a bailey beam installation method for a trestle system.
Background
In the safety construction process of the bridge, a main bridge of the large bridge is a bridge arch combined system bridge, a midspan of a main bridge bracket is provided with a navigation hole, and a longitudinal beam adopts a special Bailey sheet; due to the limitation of the approach road and the underwater channel, the installation equipment needs to be installed by adopting a large tower crane.
When the existing large-scale tower crane is used for dispatching the bailey beam, the bailey beam is fixed by adopting a steel rope in a fixing mode, and then dispatching measures are taken, because the bailey beam is singly fixed by adopting the steel rope in the lifting process, on one hand, the condition of unstable fixation exists, and on the other hand, the quick connection operation of the bailey beam cannot be realized.
Disclosure of Invention
The invention aims to provide bailey beam installation equipment and a bailey beam installation method for a trestle system, which solve the following technical problems:
the integral stability of the bailey beam in the lifting process cannot be guaranteed by fixing a single steel rope, and meanwhile, the mode of fixing the steel rope is troublesome to operate.
The aim of the invention can be achieved by the following technical scheme:
the bailey beam installation equipment for the trestle system comprises a crawler crane main body, wherein a lifting steel rope is arranged at the top of the crawler crane main body, a lifting beam assembly is fixedly connected to the bottom of the lifting steel rope, two stabilizing assemblies are arranged at the bottom of the lifting beam assembly, and two fixing assemblies are connected to the bottom of the lifting beam assembly in a sliding manner;
the lifting beam assembly comprises a lifting beam main body, a threaded rod is connected to the inner portion of the lifting beam main body in a rotating mode, a second bevel gear is arranged on the surface of the threaded rod in a meshed transmission mode through a first bevel gear, a rotating shaft is fixedly connected to one side of the second bevel gear, supporting blocks are fixedly connected to two sides of the bottom of the lifting beam main body, a storage roller is connected between the two supporting blocks in a rotating mode, a driving wheel is fixedly connected to one side of the storage roller and one side of the rotating shaft, and the two driving wheels are connected through a driving belt in a transmission mode.
As a further scheme of the invention: the surface threaded connection of threaded rod has two screw thread sliders, one side fixedly connected with servo motor of handling roof beam main part, and servo motor's output and threaded rod fixed connection.
As a further scheme of the invention: the top fixedly connected with handling connecting piece of handling roof beam main part, the equal fixedly connected with fixed block in both sides at handling roof beam main part top, the middle part fixedly connected with of threaded rod hinders the spacer block.
As a further scheme of the invention: the surface winding of accomodating the roller has stable steel cable, the one end fixedly connected with electro-magnet of stable steel cable.
As a further scheme of the invention: the fixing assembly comprises a connecting plate fixedly connected with the threaded sliding block, the bottom of the connecting plate is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected with a connecting block.
As a further scheme of the invention: the bottom fixedly connected with two bracing pieces of connecting plate, and the one end and the linking piece fixed connection of two bracing pieces, the inside sliding connection of linking piece has connecting rod one and connecting rod two, and connecting rod one and connecting rod two pass through the connecting axle and rotate to be connected.
As a further scheme of the invention: one end of the first connecting rod and one end of the second connecting rod are respectively connected with a first fixing rod and a second fixing rod in a rotating mode through connecting shafts, and a supporting shaft is connected at the intersecting position of the first fixing rod and the second fixing rod in a rotating mode.
As a further scheme of the invention: the top of the lifting beam assembly is fixedly connected with two tension steel ropes, the intersection point of the two tension steel ropes is fixedly connected with a bundling block, and the lifting steel ropes penetrate through the inside of the bundling block.
A mounting method of bailey beam mounting equipment used for a trestle system comprises the following steps:
step one: the method comprises the steps of determining positions of the bailey beams by measuring lofting according to pile position intervals, splicing the bailey beams into a section of length in a back field, transporting the section of length to a pier position by using a flat car, then lifting and splicing the spliced bailey beams by using a crawler crane, adjusting the distance between two fixed assemblies according to the size of the bailey beams required to be lifted during lifting, lifting the bailey beams by adjusting the proper distance, powering on an electromagnet to adsorb the bailey beams after the positions of the two fixed assemblies are selected, and simultaneously starting a hydraulic cylinder to fix the bailey beams by using a first fixed rod and a second fixed rod, wherein the crawler crane can be used for lifting after the whole fixing work is completed;
step two: the adjustment test hoisting work is carried out before the bailey beam is hoisted, after the bailey beam is hoisted to the butt joint position, fine adjustment is carried out by using a manual hoist, the upper chord is firstly butted, then the lower chord is butted, and then a steel pin is inserted, and a safety pin is immediately installed;
step three: after the steel pins and the safety pins of the whole butt joint section are installed, hooking the crane Fang Kesong, adjusting the positions of all the bailey beams according to the center of a temporary bridge for measuring and lofting after the bailey beams are assembled, and welding a transverse limiting angle steel to fix the bailey beams;
step four, a step four is carried out; the crawler crane is firstly provided with a set of bailey, is firmly bound on the spandrel girder after being accurately positioned, is then welded with a limiter, is provided with another set of bailey, is simultaneously connected with a set of installed bailey with a flower window, and the installation of the bailey girder is completed by the same method, and the attention is paid to the position of the steel casing which is not invaded by the bailey during the installation of the bailey.
The invention has the beneficial effects that:
1. through the mutual matching of the arranged stabilizing component and the fixed component, on one hand, the whole fast fixing operation of the bailey beam is realized, and on the other hand, the stability of the bailey beam in the lifting process can be improved;
2. the distance between the two fixed assemblies can be adjusted through the set lifting beam assembly, so that the best lifting position can be better adapted, and the lifting work of the bailey beam is facilitated.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall construction of the crawler crane of the present invention;
FIG. 2 is a schematic view of the overall structure of the lifting mechanism of the present invention;
FIG. 3 is a schematic top view of a swing beam assembly of the present invention;
FIG. 4 is a schematic structural view of the stabilizing assembly of the present invention;
fig. 5 is a schematic structural view of the fixing assembly of the present invention.
In the figure: 1. a crawler crane body; 2. hoisting the steel rope; 3. lifting the beam assembly; 301. lifting the beam main body; 302. a threaded rod; 303. a thread slider; 304. a servo motor; 305. a first bevel gear; 306. lifting the connecting piece; 307. a fixed block; 308. a barrier block; 4. a stabilizing assembly; 401. a support block; 402. a receiving roller; 403. stabilizing the steel cord; 404. an electromagnet; 405. a rotating shaft; 406. a second bevel gear; 407. a driving wheel; 408. a transmission belt; 5. a fixing assembly; 501. a connecting plate; 502. a hydraulic cylinder; 503. a joint block; 504. a support rod; 505. a first connecting rod; 506. a second connecting rod; 507. a first fixed rod; 508. a second fixing rod; 6. a tension steel rope; 7. and (5) converging the blocks.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A mounting method of bailey beam mounting equipment used for a trestle system comprises the following steps:
step one: the method comprises the steps that a position of the bailey beam is determined by measuring lofting according to pile position spacing, a section of length is assembled in a back field, a flat car is used for transporting to a pier position, then a crawler crane is used for carrying out lifting assembly work on the assembled bailey beam, when lifting, the distance between two fixing assemblies 5 is adjusted according to the size of the bailey beam required to be lifted, the distance between the two fixing assemblies 5 is adjusted to lift the bailey beam, after the positions of the two fixing assemblies 5 are selected, an electromagnet 404 is electrified to adsorb the bailey beam, meanwhile, a hydraulic cylinder 502 is started to fix the bailey beam by using a fixing rod I507 and a fixing rod II 508, and after the whole fixing work is completed, the crawler crane can be used for carrying out lifting work;
step two: the adjustment test hoisting work is carried out before the bailey beam is hoisted, after the bailey beam is hoisted to the butt joint position, fine adjustment is carried out by using a manual hoist, the upper chord is firstly butted, then the lower chord is butted, and then a steel pin is inserted, and a safety pin is immediately installed;
step three: after the steel pins and the safety pins of the whole butt joint section are installed, hooking the crane Fang Kesong, adjusting the positions of all the bailey beams according to the center of a temporary bridge for measuring and lofting after the bailey beams are assembled, and welding a transverse limiting angle steel to fix the bailey beams;
step four, a step four is carried out; the crawler crane is firstly provided with a set of bailey, is firmly bound on the spandrel girder after being accurately positioned, is then welded with a limiter, is provided with another set of bailey, is simultaneously connected with a set of installed bailey with a flower window, and the installation of the bailey girder is completed by the same method, and the attention is paid to the position of the steel casing which is not invaded by the bailey during the installation of the bailey.
Example two
Referring to fig. 1 to 5, the invention discloses bailey beam installation equipment and an installation method for a trestle system, which comprises a crawler crane main body 1, wherein the crawler crane main body 1 is of the existing mature technology, the crawler crane main body 1 in the application adopts a 75t crawler crane, a lifting steel rope 2 is arranged at the top of the crawler crane main body 1, the lifting steel rope 2 is accommodated through the existing crawler crane main body 1, a lifting beam component 3 is fixedly connected to the bottom of the lifting steel rope 2, two stabilizing components 4 are arranged at the bottom of the lifting beam component 3, two fixing components 5 are slidingly connected to the bottom of the lifting beam component 3, and the lifting operation of the bailey beam is facilitated by the aid of the lifting beam component 3, the stabilizing components 4 and the fixing components 5 which are arranged on one hand, and on the other hand, the stability of the whole lifting is improved;
the lifting beam assembly 3 comprises a lifting beam main body 301, a threaded rod 302 is rotatably connected to the inside of the lifting beam main body 301, threads on the surface of the threaded rod 302 are symmetrically arranged, two threaded sliders 303 which are in threaded connection with the surface of the threaded rod 302 can be guaranteed to be close to or far away from each other through the symmetrically arranged threads, the distance between two fixed assemblies 5 is adjusted, a second bevel gear 406 is meshed on the surface of the threaded rod 302 through a first bevel gear 305, a rotating shaft 405 is fixedly connected to one side of the second bevel gear 406, supporting blocks 401 are fixedly connected to two sides of the bottom of the lifting beam main body 301, two supporting blocks 401 are in a group, two groups of stabilizing assemblies 4 are arranged at the bottom of the lifting beam assembly 3, a storage roller 402 is rotatably connected between each group of stabilizing assemblies 4, a driving wheel 407 is fixedly connected to one side of the storage roller 402 and the rotating shaft 405, the two driving wheels 407 are in transmission connection through a driving belt 408, the purpose of saving space is achieved, the driving wheels 407 and the driving belt 408 are connected more stably, subsequent maintenance operation is facilitated, the whole operation can be realized by mutually matching the set stabilizing assemblies 4 and the driving wheels 5, on the one hand, the stability of the lifting beam can be quickly operated, and on the other hand, the stability of the whole operation can be improved.
The surface threaded connection of threaded rod 302 has two screw thread sliders 303, and two screw thread sliders 303 can be at the surface movement of threaded rod 302, and one side fixedly connected with servo motor 304 of handling roof beam main part 301, servo motor 304 are common in the market, and servo motor 304's output and threaded rod 302 fixed connection utilize servo motor 304's positive and negative rotation to drive the positive and negative rotation of threaded rod 302 thereby realize that two screw thread sliders 303 remove each other and keep away from.
The top fixedly connected with handling connecting piece 306 of handling roof beam main part 301, handling connecting piece 306 and the bottom fixed connection of handling steel rope 2, the equal fixedly connected with fixed block 307 in both sides at handling roof beam main part 301 top, fixed block 307 and pulling force steel rope 6 fixed connection improve the stability that single handling steel rope 2 was connected through two additional pulling force steel ropes 6, guarantee the holistic stability of handling in-process, the middle part fixedly connected with separation piece 308 of threaded rod 302 can come to adjust the distance between two fixed subassembly 5 through the handling roof beam subassembly 3 that sets up, thereby better adaptation handling optimal position, the handling work to the bailey roof beam is convenient.
The surface of the receiving roller 402 is wound with a stabilizing steel rope 403, one end of the stabilizing steel rope 403 is fixedly connected with an electromagnet 404, the electromagnet 404 is controlled by an external power supply, and the installation of the lead is set according to actual operation.
The fixed subassembly 5 includes the connecting plate 501 with screw slider 303 fixed connection, the bottom fixedly connected with hydraulic cylinder 502 of connecting plate 501, the output fixedly connected with linking block 503 of hydraulic cylinder 502, and the sliding tray has all been seted up to the both sides of linking block 503, and the setting of sliding tray makes things convenient for connecting rod one 505 and connecting rod two 506 link to slide inside, comes spacing to the removal of connecting rod one 505 and connecting rod two 506.
The bottom fixedly connected with two bracing pieces 504 of connecting plate 501, bracing piece 504 wholly can stretch out and draw back, supports the linking piece 503 through the bracing piece 504 that sets up stably, and the one end and the linking piece 503 fixed connection of two bracing pieces 504, the inside sliding connection of linking piece 503 has connecting rod one 505 and connecting rod two 506, and connecting rod one 505 and connecting rod two 506 pass through the connecting axle and rotate and be connected.
One ends of the first connecting rod 505 and the second connecting rod 506 are respectively and rotatably connected with a first fixing rod 507 and a second fixing rod 508 through connecting shafts, and a supporting shaft is rotatably connected at the intersection position of the first fixing rod 507 and the second fixing rod 508.
The top of the lifting beam component 3 is fixedly connected with two tension steel ropes 6, the intersection point of the two tension steel ropes 6 is fixedly connected with a bundling block 7, and the lifting steel rope 2 penetrates through the inside of the bundling block 7.
The working principle of the invention is as follows: when the crawler crane is used, firstly, two fixed assemblies 5 at the bottom of a lifting beam main body 301 are adjusted according to the length of a Bailey beam to be lifted, and when the crawler crane is adjusted, a servo motor 304 is opened to drive a threaded rod 302 to rotate through rotation of an output end of the servo motor 304, so that the two threaded sliders 303 on the surface of the threaded rod 302 are driven to mutually move or move away from each other by utilizing the action of threads in the direction of the surface of the threaded rod 302, the fixed assemblies 5 fixedly connected with the bottoms of the threaded sliders 303 are further driven to move, and proper lifting points are selected to lift the Bailey beam by utilizing the fixed assemblies 5;
simultaneously, the threaded rod 302 drives the rotation shaft 405 to rotate under the action of the intermeshing transmission of the first bevel gear 305 and the second bevel gear 406 while rotating, so that the whole storage roller 402 is driven to rotate under the action of the transmission wheel 407 and the transmission belt 408, the stable steel rope 403 wound on the surface of the storage roller 402 is further discharged to be contacted with the bailey beam to be lifted by the electromagnet 404, the electromagnet 404 is electrified, and the bailey beam is adsorbed by the electromagnet 404, so that the stability of the bailey beam in the lifting process is improved;
after the lifting points of the bailey beam are selected, the hydraulic cylinder 502 is started, the upward movement of the output end of the hydraulic cylinder 502 is utilized to drive the first connecting rod 505 and the second connecting rod 506 to integrally slide and rise in the sliding grooves formed in the two sides of the connecting block 503, the first connecting rod 505 and the second connecting rod 506 can drive the fixing rod 508 and the fixing rod 507 to rotate simultaneously when rising, so that the bailey beam is clamped and fixed by the fixing rod 507 and the fixing rod 508, the lifting steel rope 2 can be utilized to lift the whole lifting beam assembly 3 after the clamping and fixing are finished, and then a worker can transport the bailey beam to a designated position by starting the crawler crane body 1.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (9)
1. The bailey beam installation equipment for the trestle system comprises a crawler crane main body (1) and is characterized in that a lifting steel rope (2) is arranged at the top of the crawler crane main body (1), a lifting beam assembly (3) is fixedly connected to the bottom of the lifting steel rope (2), two stabilizing assemblies (4) are arranged at the bottom of the lifting beam assembly (3), and two fixing assemblies (5) are slidably connected to the bottom of the lifting beam assembly (3);
the lifting beam assembly (3) comprises a lifting beam main body (301), a threaded rod (302) is rotatably connected to the inside of the lifting beam main body (301), a second bevel gear (406) is meshed and driven on the surface of the threaded rod (302) through a first bevel gear (305), a rotating shaft (405) is fixedly connected to one side of the second bevel gear (406), supporting blocks (401) are fixedly connected to two sides of the bottom of the lifting beam main body (301), a storage roller (402) is rotatably connected between the two supporting blocks (401), a driving wheel (407) is fixedly connected to one side of the storage roller (402) and one side of the rotating shaft (405), and the two driving wheels (407) are in transmission connection through a driving belt (408).
2. The bailey beam installation device for use in a trestle system according to claim 1, wherein the surface of the threaded rod (302) is in threaded connection with two threaded sliders (303), one side of the lifting beam body (301) is fixedly connected with a servo motor (304), and an output end of the servo motor (304) is fixedly connected with the threaded rod (302).
3. A bailey beam installation device for use in a trestle system according to claim 3, characterized in that the top of the lifting beam body (301) is fixedly connected with a lifting connector (306), both sides of the top of the lifting beam body (301) are fixedly connected with fixing blocks (307), and the middle part of the threaded rod (302) is fixedly connected with a blocking block (308).
4. The bailey beam mounting device for use in a trestle system according to claim 1, wherein a stabilizing wire (403) is wound around the surface of the receiving roller (402), and an electromagnet (404) is fixedly connected to one end of the stabilizing wire (403).
5. The bailey beam mounting device for use in a trestle system according to claim 1, wherein the fixing assembly (5) comprises a connecting plate (501) fixedly connected with a threaded slider (303), a hydraulic cylinder (502) is fixedly connected to the bottom of the connecting plate (501), and a connecting block (503) is fixedly connected to the output end of the hydraulic cylinder (502).
6. The bailey beam mounting device for use in a trestle system according to claim 5, wherein two support rods (504) are fixedly connected to the bottom of the connecting plate (501), one ends of the two support rods (504) are fixedly connected to a connecting block (503), a first connecting rod (505) and a second connecting rod (506) are slidably connected to the inside of the connecting block (503), and the first connecting rod (505) and the second connecting rod (506) are rotatably connected through a connecting shaft.
7. The bailey beam mounting device for use in a trestle system according to claim 6, wherein one ends of the first and second connecting rods (505, 506) are respectively rotatably connected to a first fixing rod (507) and a second fixing rod (508) through connecting shafts, and a supporting shaft is rotatably connected to a position where the first fixing rod (507) and the second fixing rod (508) intersect.
8. The bailey beam installation device for the trestle system according to claim 1, wherein the top of the lifting beam assembly (3) is fixedly connected with two tension steel ropes (6), a beam-collecting block (7) is fixedly connected at the intersection point of the two tension steel ropes (6), and the lifting steel ropes (2) penetrate through the inside of the beam-collecting block (7).
9. A method of installing bailey beam installation apparatus for use in a trestle system according to any of claims 1-8, comprising the steps of:
step one: the method comprises the steps of determining positions of the bailey beams by measuring lofting according to pile position intervals, splicing the bailey beams into a section of length in a back field, carrying out lifting splicing operation on the spliced bailey beams by using a flat car to a pier position, adjusting the distance between two fixing assemblies (5) according to the size of the bailey beams required to be lifted during lifting, adjusting proper distances to lift the bailey beams, electrifying an electromagnet (404) to adsorb the bailey beams after the positions of the two fixing assemblies (5) are selected, starting a hydraulic cylinder (502) to fix the bailey beams by using a fixing rod I (507) and a fixing rod II (508), and lifting operation by using a crawler after the whole fixing operation is completed;
step two: the adjustment test hoisting work is carried out before the bailey beam is hoisted, after the bailey beam is hoisted to the butt joint position, fine adjustment is carried out by using a manual hoist, the upper chord is firstly butted, then the lower chord is butted, and then a steel pin is inserted, and a safety pin is immediately installed;
step three: after the steel pins and the safety pins of the whole butt joint section are installed, hooking the crane Fang Kesong, adjusting the positions of all the bailey beams according to the center of a temporary bridge for measuring and lofting after the bailey beams are assembled, and welding a transverse limiting angle steel to fix the bailey beams;
step four, a step four is carried out; the crawler crane is firstly provided with a set of bailey, is firmly bound on the spandrel girder after being accurately positioned, is then welded with a limiter, is provided with another set of bailey, is simultaneously connected with a set of installed bailey with a flower window, and the installation of the bailey girder is completed by the same method, and the attention is paid to the position of the steel casing which is not invaded by the bailey during the installation of the bailey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211723882.5A CN116289563A (en) | 2022-12-30 | 2022-12-30 | Bailey beam installation equipment and installation method for trestle system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211723882.5A CN116289563A (en) | 2022-12-30 | 2022-12-30 | Bailey beam installation equipment and installation method for trestle system |
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| CN116289563A true CN116289563A (en) | 2023-06-23 |
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| CN202211723882.5A Pending CN116289563A (en) | 2022-12-30 | 2022-12-30 | Bailey beam installation equipment and installation method for trestle system |
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| CN111851302A (en) * | 2020-07-22 | 2020-10-30 | 重庆交通建设(集团)有限责任公司 | Rapid construction method of steel trestle |
| CN212924094U (en) * | 2020-08-24 | 2021-04-09 | 东莞市华鑫泰金属科技有限公司 | Detachable steel construction hoist |
| CN215755973U (en) * | 2021-08-04 | 2022-02-08 | 中起重工机械有限公司 | Clamp lifting appliance with anti-skidding structure |
| CN215439315U (en) * | 2021-08-21 | 2022-01-07 | 中起重工机械有限公司 | Workpiece clamp lifting appliance |
| CN217201791U (en) * | 2022-01-17 | 2022-08-16 | 大连长宏科技有限公司 | Lifting equipment is stabilized to hoisting point adjustable |
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