CN115262400A - Movable bridge floor hogging moment stretch-draw operating means - Google Patents
Movable bridge floor hogging moment stretch-draw operating means Download PDFInfo
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- CN115262400A CN115262400A CN202210912696.XA CN202210912696A CN115262400A CN 115262400 A CN115262400 A CN 115262400A CN 202210912696 A CN202210912696 A CN 202210912696A CN 115262400 A CN115262400 A CN 115262400A
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- rotatory
- hogging moment
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
- E01D2101/285—Composite prestressed concrete-metal
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The utility model provides a movable bridge floor hogging moment stretch-draw operating means, belongs to engineering prestressing force precast continuous beam construction technical field such as railway, highway, municipal construction, including removing the support body subassembly, the both ends of removing the support body subassembly are fixed with tensioning machine and supporting component respectively, and the supporting component middle part is fixed with the main shaft of vertical setting, be equipped with in the main shaft and follow the rotatory vertical axis that main shaft length direction reciprocated, rotatory vertical axis drives its up-and-down motion through drive assembly, the rotatory cross axle of bottom fixedly connected with of rotatory vertical axis, the cover is equipped with the subassembly that slides that can follow rotatory cross axle length direction and remove on the rotatory cross axle, it is connected with the platform of depositing that is used for installing the jack to rotate on the subassembly that slides. The invention can freely and flexibly install and operate the jack under the condition of limited operation space, meets the tensioning requirements of different positions, reduces the construction difficulty, simultaneously reduces the safety risk of high-altitude operation and improves the construction safety.
Description
Technical Field
The invention belongs to the technical field of construction of prestressed precast continuous beams for railway, highway, municipal construction and other projects, and relates to a bridge deck negative moment tensioning operation device, in particular to a movable bridge deck negative moment tensioning operation device.
Background
The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern high-speed developed traffic industry, bridges are also extended to be constructed to span mountain stream, unfavorable geology or meet other traffic needs, so that the buildings are convenient to pass. The bridge generally comprises an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge span structure and is a main structure for spanning obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting positions of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structures refer to bridge end butt straps, tapered revetments, diversion works and the like.
At present, with the rapid development of infrastructure construction in China, the proportion of bridge construction applied to the fields of municipal administration, highways, railways and the like is larger and larger. Prestressed precast beams are also becoming increasingly common in bridge design. The hogging moment section tensioning of the precast beam is that construction is carried out under a bridge floor after erection, belongs to high-altitude operation, and has limited operation space, and the jack is heavy in weight and difficult to install.
Traditional hogging moment tensioning construction of precast beam needs many people at first to move tensioning machine and jack to the operation place to reciprocating, then does not rely on any equipment, and the manual work is installed the jack and is carried out the tensioning operation, therefore the operation is wasted time and energy, and is inefficient, and the operation is got up to trivial details complicacy also, also has very big potential safety hazard simultaneously.
Therefore, in order to solve the problems, the invention provides a movable type bridge deck hogging moment tensioning operation device.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides a movable device for tensioning a hogging moment of a bridge deck, which is used for solving the technical problems of time and labor waste, low working efficiency and potential safety hazard in the hogging moment tensioning construction of the bridge deck in the prior art.
In order to achieve the above and other related purposes, the invention provides a movable bridge deck negative bending moment tensioning operation device, which comprises a movable frame body assembly, wherein a tensioning machine is fixed at one end of the movable frame body assembly, a support assembly is fixed at the other end of the movable frame body assembly, a vertically arranged main shaft is fixed in the middle of the support assembly, a rotary vertical shaft capable of moving up and down along the length direction of the main shaft is arranged in the main shaft, the rotary vertical shaft drives the rotary vertical shaft to move up and down through a driving assembly, a rotary transverse shaft is fixedly connected to the bottom of the rotary vertical shaft, a sliding assembly capable of moving along the length direction of the rotary transverse shaft is sleeved on the rotary transverse shaft, and a storage platform for mounting a jack is rotatably connected to the sliding assembly.
Preferably in any of the above schemes, the movable frame body assembly comprises two main beams arranged in parallel, the middle of the two main beams is fixed with a roller, and the two ends of the roller respectively extend out of the rear of the main beams and are fixedly connected with wheels.
Preferably in any of the above schemes, two at least two transverse connecting rods are welded between the main cross beams, the stretching machine is fixed on the transverse connecting rods through four fixed angle steels, and the four fixed angle steels are uniformly fixed on the transverse connecting rods.
In any of the above schemes, preferably, the support assembly includes two support beams and two support vertical beams, the support beams and the support vertical beams are welded to each other to form a rectangular frame support frame, and the main shaft is welded to the middle portions of the upper and lower support beams.
Preferably in any above scheme, rotatory cross axle welds in rotatory vertical axis bottom, the welding department of rotatory cross axle and rotatory vertical axis has the triangle steel sheet that is used for the reinforcement, the welding of triangle steel sheet department has first annular muscle.
Preferably in any above scheme, main shaft upper portion welding has the second annular muscle, drive assembly includes chain block, first annular muscle and second annular muscle are hung respectively to chain block's couple.
Preferred in the above-mentioned arbitrary scheme, the subassembly that slides includes two sets of steel bar support, and two sets of steel bar support set up both sides about rotatory cross axle respectively, and it has first steel sheet all to weld on every steel bar support of group, and the welding has the second steel sheet between two sets of steel bar support, rotatory cross axle runs through the second steel sheet, every group even install four pulleys on the steel bar support, every the pulley all contacts with rotatory cross axle.
Preferably in any of the above schemes, the first steel sheet above the rotary cross shaft is fixedly connected with a nut, a bolt adapted to the nut is arranged in the nut, and the top of the bolt is fixedly connected with the storage platform.
Preferably, in any scheme, the storage platform is formed by welding three steel sheets into a groove shape, a round hole for fixing the jack through a steel wire rope is formed in the bottom of the groove of the storage platform, and the groove of the storage platform is matched with a telescopic rod of the jack.
In any of the above schemes, preferably, the end of the suspended end of the rotating transverse shaft is fixedly connected with a positioning steel sheet.
As mentioned above, the movable bridge deck hogging moment tensioning operation device has the following beneficial effects:
1. the invention can freely and flexibly install and operate the jack under the condition of limited operation space, meets the tensioning requirements of different positions, reduces the construction difficulty, simultaneously reduces the safety risk of high-altitude operation and improves the construction safety.
2. The invention can carry a whole set of tensioning mechanical equipment to move, greatly accelerates the construction speed, saves the labor amount, saves time and labor and has high construction efficiency.
3. The invention has simple structure and convenient material taking, can be manufactured on the site as required and recycled, and effectively controls the construction cost.
Drawings
Fig. 1 shows a front view of the present invention.
Fig. 2 shows a side view of the present invention.
Fig. 3 shows a top view of the present invention.
FIG. 4 shows a front view of the glide assembly.
Fig. 5 shows a bottom view of the glide assembly.
Description of the element reference numerals
1-rotating the vertical shaft; 2-a main shaft; 3-a second annular rib; 4-supporting the beam; 5-supporting the vertical beam; 6-vehicle wheels; 7-a roller; 8-a main beam; 9-rotating the horizontal shaft; 10-a glide assembly; 11-chain block; 12-an inclined strut; 13-a jack; 14-a stretching machine; 15-fixing angle steel; 16-triangular steel sheets; 17-positioning the steel sheet; 18-a transverse tie bar; 19-a nut; 20-a storage platform; 21-a pulley; 22-a steel bar support; 23-a first annular rib; 24-a first steel sheet; 25-a second steel sheet; 26-bolt.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, etc. shown in the drawings and attached to the description are only for understanding and reading the disclosure of the present invention, and are not intended to limit the practical conditions of the present invention, so that the present invention has no technical significance, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes, should still fall within the scope of the technical contents of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms may be changed or adjusted without substantial change in the technical content.
Referring to fig. 1-5, the invention provides a movable bridge deck hogging moment tensioning operation device, which comprises a movable frame assembly, wherein a tensioning machine 14 is fixed at one end of the movable frame assembly, a support assembly is fixed at the other end of the movable frame assembly, a vertically arranged main shaft 2 is fixed in the middle of the support assembly, a rotary vertical shaft 1 capable of moving up and down along the length direction of the main shaft 2 is arranged in the main shaft 2, the rotary vertical shaft 1 is driven by a driving assembly to move up and down, a rotary transverse shaft 9 is fixedly connected to the bottom of the rotary vertical shaft 1, a sliding assembly 10 capable of moving along the length direction of the rotary transverse shaft 9 is sleeved on the rotary transverse shaft 9, and a storage platform 20 for mounting a jack 13 is rotatably connected to the sliding assembly 10.
When the embodiment is used, after a bridge is erected, high-altitude construction needs to be carried out below a bridge floor to stretch the hogging moment section of the precast beam, and the construction operation space is limited. Meanwhile, the tensioning machine and the jack need to be manually moved to an operation place in a reciprocating mode, then the jack is manually installed for tensioning operation without any equipment, the whole construction process is time-consuming and labor-consuming, the working efficiency is low, the operation is complex, and great potential safety hazards exist. Therefore, in order to solve the problem, the embodiment uses local materials at the construction site, manufactures a movable frame assembly which can be moved, fixes the stretching machine 14 and the jack 13 on the movable frame assembly, moves the stretching machine 14 and the jack 13 to the operation site by moving the movable frame assembly, reduces the link of manual moving, thereby saving labor force and improving moving efficiency. Meanwhile, in order to realize the movement in the height and horizontal directions and the rotation in the horizontal direction for the jack 13, thereby meeting different construction requirements, the rotating transverse shaft 9 is provided in the embodiment. When the height of the jack 13 needs to be adjusted, the driving assembly drives the rotating vertical shaft 1 to move up and down, and the rotating horizontal shaft 9 fixedly connected with the rotating vertical shaft 1 is driven to move up and down in the process that the rotating vertical shaft 1 moves up and down, so that the jack 13 mounted on the rotating horizontal shaft 9 is driven to move up and down. When the jack 13 needs to be moved in the horizontal direction, the sliding assembly 10 is moved along the length direction of the rotating horizontal shaft 9, and the jack 13 is further moved along the length direction of the rotating horizontal shaft 9. The storage platform 20 is rotatably connected to the sliding assembly 10, and the rotation of the jack 13 in the horizontal direction can be realized by rotating the storage platform 20. To sum up, this embodiment can be under the limited circumstances in operation space, and the installation and the operation jack 13 of freedom flexibility satisfy the stretch-draw demand that does not pass through the position, have reduced the construction degree of difficulty, simultaneously, have also reduced the safety risk of aerial work.
As a further description of the above embodiment, the movable frame assembly includes two main beams 8 arranged in parallel, a roller 7 is fixed in the middle of each of the two main beams 8, and two ends of the roller 7 respectively extend out of the main beams 8 and then are fixedly connected with wheels 6.
In use, the main beam 8 has two paths, which serve as support and connection members for the moving frame assembly. The roller 7 penetrates through the two wheels 6 and is fixed in the middle of the two main beams 8 to serve as a moving and bearing component of the moving frame body assembly. The main beam 8, the rolling shaft 7 and the wheels 6 jointly form a movable frame body assembly, the device is moved by moving the movable frame body assembly, labor force required by moving the device is reduced, and moving efficiency of the device is improved.
Of course, the movable frame assembly is not limited to this structure, and other movable structures may be used. Such as a pallet truck structure, etc.
In the embodiment, the wheels 6 are the wheels of the hand-push bucket with the diameter of 60 cm; the roller 7 is made of phi =28mm HRB400 deformed steel. The main beam 8 is made of 5cm × 5cm square steel.
As a further description of the above embodiment, at least two transverse connecting rods 18 are welded between the two main transverse beams 8, the stretching machine 14 is fixed on the transverse connecting rods 18 through four fixed angle irons 15, and the four fixed angle irons 15 are uniformly fixed on the transverse connecting rods 18.
When this embodiment uses, transverse connection rod 18 has four, welds between twice main beam 8, can support tensioning machine 14, simultaneously, also plays and connects main beam 8 to the effect of reinforcing removal support body subassembly. Four fixed angle steels 15 are welded to the upper side of the outer transverse link 18, respectively, and serve as members for fixing the stretching machine 14.
In this embodiment, the fixed angle 15 may be made of a 10cm angle or a steel sheet by welding. The transverse connecting rod 18 is made of 3cm channel steel.
As a further description of the above embodiment, the supporting assembly includes two supporting beams 4 and two supporting vertical beams 5, the supporting beams 4 and the supporting vertical beams 5 are respectively welded to each other to form a rectangular frame supporting frame, and the main shaft 2 is welded to the middle portions of the upper and lower supporting beams 4.
In the present embodiment, a rectangular frame formed by welding two supporting beams 4 and two supporting vertical beams 5 is used as a supporting member of the jack operating mechanism. The jack operating mechanism is a mechanism for driving the jack 13 to move up and down and horizontally and rotate horizontally. The main shaft 2 is positioned in the middle of the rectangular frame and is welded with the upper and lower supporting beams 4 to be used as a connecting member of the movable frame body assembly and the jack operating mechanism, and meanwhile, the integrity of the supporting assembly can be enhanced. The outer side of the upper part of the main shaft 2 is welded with a first annular rib 23 which is used as a hanging point of the driving component. Simultaneously, it has two bracing 12 still to weld on the vertical beam 5 to support, the other end and the main beam 8 of bracing 12 weld, and the stability of supporting component is strengthened in the setting up of bracing 12, simultaneously, also can play the effect of protection stretch-draw equipment.
In this embodiment, the supporting beams 4 and the supporting vertical beams 5 are not limited to be welded to form a rectangular frame supporting frame, and may be integrally formed as a supporting frame.
In this embodiment, the supporting beam 4, the supporting vertical beam 5, and the diagonal brace 12 are all made of 5cm channel steel or i-steel. The main shaft 2 is made of square steel of 10cm × 10 cm.
As a further description of the above embodiment, the rotating horizontal shaft 9 is welded at the bottom of the rotating vertical shaft 1, a triangular steel sheet 16 for reinforcement is welded at the welding position of the rotating horizontal shaft 9 and the rotating vertical shaft 1, and a first annular rib 23 is welded at the triangular steel sheet 16. The welding of 2 upper portions of main shaft has second annular muscle 3, drive assembly includes chain block 11, first annular muscle 23 and second annular muscle 3 are hung respectively to chain block 11's couple.
When the driving component is used, the rotating transverse shaft 9 and the rotating vertical shaft 1 are welded to form an integral component, then the two triangular steel sheets 16 are used for reinforcement welding, and the first annular rib 23 is welded at the position of the triangular steel sheet 16 and serves as a connecting hanging point of the driving component.
In this embodiment, the outer diameter of the rotating vertical shaft 1 is smaller than the inner diameter of the main shaft 2, so that the rotating vertical shaft 1 can move up and down in the main shaft 2, and the height of the jack 13 can be adjusted. The height adjusting process of the jack 13 is as follows: the hook of the chain block 11 is respectively hooked on the first annular rib 23 and the second annular rib 3, then the rotating vertical shaft 1 is lifted or lowered by extending or retracting the chain block 11, the rotating horizontal shaft 9 fixedly connected with the rotating vertical shaft 1 is driven to lift or lower, and the rotating horizontal shaft 9 is lifted or lowered to drive the jack 13 connected to the rotating horizontal shaft 9 to adjust the height.
In this embodiment, the first annular rib 23 and the second annular rib 3 are both welded by using a phi =16mm HRB400 plain round rib. The rotating vertical shaft 1 and the rotating horizontal shaft 9 are both made of steel pipes with the diameter of 51mm and the wall thickness of 3 mm.
As a further description of the ascending embodiment, the sliding assembly 10 includes two sets of steel bar supports 22, the two sets of steel bar supports 22 are respectively disposed on the upper and lower sides of the rotating horizontal shaft 9, a first steel sheet 24 is welded on each set of steel bar supports 22, a second steel sheet 25 is welded between the two sets of steel bar supports 22, the rotating horizontal shaft 9 penetrates through the second steel sheet 25, each set of the steel bar supports 22 are uniformly provided with four pulleys 21, and each pulley 21 is in contact with the rotating horizontal shaft 9.
When the sliding component 10 is used in the embodiment, the sliding component is composed of four steel sheets, two steel bar supports 22 and eight pulleys 21. The first steel sheets 24 are respectively welded on the steel bar supports 22 and then are welded with the two second steel sheets 25 to form a rectangular frame, four pulleys 21 are uniformly arranged on each steel bar support 22, each pulley 21 is in contact with the rotating cross shaft 9, so that the sliding assembly 10 can freely slide on the rotating cross shaft 9, and the jack 13 arranged on the sliding assembly 10 is driven to move in the horizontal direction.
In this embodiment, the steel bar support 22 is made of HPB300 plain round steel bars with a diameter of phi =10mm by welding.
As a further description of the above embodiment, a nut 19 is fixedly connected to the first steel sheet 24 above the rotating horizontal shaft 9, a bolt 26 adapted to the nut 19 is provided in the nut 19, and the top of the bolt 26 is fixedly connected to the storage platform 20.
When the embodiment is used, the rotary connection between the storage platform 20 and the sliding assembly 10 comprises a nut 19 and a bolt 26 which are mutually adaptive, the nut 19 is welded on the first steel sheet 24 of the sliding assembly 10, the bolt 26 is welded on the lower surface of the storage platform 20, the bolt 26 is connected with the nut 19, and when the jack 13 needs to be rotated in the horizontal direction, the nut 19 can be rotated.
In this embodiment, the nut 19 is a hexagonal M20 nut.
As a further description of the above embodiment, the storage platform 20 is made of three steel sheets welded into a groove shape, a circular hole for threading a steel wire rope to fix the jack 13 is formed at the bottom of the groove of the storage platform 20, and the groove of the storage platform 20 is engaged with the telescopic rod of the jack 13.
When the storage platform 20 is used in the embodiment, the storage platform is made of three steel sheets welded into a groove shape, and the shape of the groove is matched with the telescopic rod of the jack 13. Simultaneously, four round holes are drilled at the bottom of the groove and used for threading a steel wire rope to fix the jack 13, so that the stability of the jack 13 in the working process is ensured, and the use safety of the device is further improved.
As a further description of the above embodiment, the free end of the rotating cross shaft 9 is fixedly connected with a positioning steel piece 17.
When the device is used, the positioning steel sheet 17 can prevent the sliding component 10 from sliding down from the rotating cross shaft 9, so that the jack 13 is prevented from sliding down, normal work of the device is protected, and use safety of the device is improved.
The movable bridge deck hogging moment tensioning operation device can be used for construction through the following steps:
1) Before the hogging moment tensioning operation is carried out, the tensioning machine 14 is installed and fixed on the movable frame body assembly;
2) The telescopic rod of the jack 13 is aligned and placed in the groove of the storage platform 20, and is bound and fixed by a steel wire rope;
3) Pushing the movable bridge deck hogging moment tensioning operation device to a place where tensioning operation is needed, then rotating the wheels 6, adjusting the direction and the position, and ensuring that the jack 13 operation structure can penetrate through a wet joint;
4) Stretching the chain block 11 to enable the jack 13 operation structure to penetrate through the wet joint and descend to the height same as the position of the pore channel;
5) The direction of the jack 13 is adjusted through rotating the rotary storage platform 20, and the position of the jack 13 is adjusted through sliding the sliding component 10 back and forth on the rotary transverse shaft 9;
6) After the operation is finished, the hand chain block 11 is used for lifting the jack 13 operation structure from the wet joint to the original position, then the jack is fixed, and the movable bridge deck hogging moment tensioning operation device is pushed to the next operation site.
In conclusion, the jack can be freely and flexibly installed and operated under the condition of limited operation space, the tensioning requirements of different positions are met, the construction difficulty is reduced, meanwhile, the safety risk of high-altitude operation is reduced, and the construction safety is improved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a movable bridge floor hogging moment stretch-draw operating means which characterized in that: including removing the support body subassembly, the one end of removing the support body subassembly is fixed with stretch-draw machine (14), the other end of removing the support body subassembly is fixed with supporting component, the supporting component middle part is fixed with main shaft (2) of vertical setting, be equipped with in main shaft (2) and carry out rotatory vertical axis (1) that reciprocates along main shaft (2) length direction, rotatory vertical axis (1) drives its up-and-down motion through drive assembly, the rotatory cross axle (9) of bottom fixedly connected with of rotatory vertical axis (1), the cover is equipped with subassembly (10) that slides that can follow rotatory cross axle (9) length direction and remove on rotatory cross axle (9), it is connected with storage platform (20) that are used for installing jack (13) to rotate on subassembly (10) that slides.
2. The movable bridge deck hogging moment tensioning device of claim 1, wherein: the movable support body assembly comprises two main cross beams (8) which are arranged in parallel, a rolling shaft (7) is fixed in the middle of each main cross beam (8), and wheels (6) are fixedly connected to the two ends of each rolling shaft (7) after the main cross beams (8) extend out respectively.
3. The movable bridge deck hogging moment tensioning device of claim 2, wherein: two the welding has two piece at least horizontal connecting rod (18) between main beam (8), stretch-draw machine (14) are fixed in on horizontal connecting rod (18) through four fixed angle steel (15), four fixed angle steel (15) are evenly fixed in on horizontal connecting rod (18).
4. The movable bridge deck hogging moment tensioning device of claim 1, wherein: the supporting assembly comprises two supporting cross beams (4) and two supporting vertical beams (5), the supporting cross beams (4) and the supporting vertical beams (5) are welded to form a rectangular frame supporting frame, and the main shaft (2) is welded to the middle parts of the upper supporting cross beam and the lower supporting cross beam (4).
5. The movable bridge deck hogging moment tensioning device of claim 1, wherein: rotatory cross axle (9) weld in rotatory vertical axis (1) bottom, the welding of rotatory cross axle (9) and rotatory vertical axis (1) has triangle steel sheet (16) that are used for the reinforcement, the welding of triangle steel sheet (16) department has first annular muscle (23).
6. The movable bridge deck hogging moment tensioning operating device of claim 5, wherein: the welding of main shaft (2) upper portion has second annular muscle (3), drive assembly includes chain block (11), first annular muscle (23) and second annular muscle (3) are hung respectively to the couple of chain block (11).
7. The movable bridge deck hogging moment tensioning device of claim 1, wherein: slip subassembly (10) including two sets of steel bar support (22), two sets of steel bar support (22) set up in both sides about rotatory cross axle (9) respectively, and it has first steel sheet (24) all to weld on every steel bar support (22) of group, and the welding has second steel sheet (25) between two sets of steel bar support (22), second steel sheet (25), every group are run through in rotatory cross axle (9) even installation has four pulleys (21), every on steel bar support (22) pulley (21) all contact with rotatory cross axle (9).
8. The movable bridge deck hogging moment tensioning device of claim 7, wherein: the rotary transverse shaft is characterized in that a nut (19) is fixedly connected onto the first steel sheet (24) above the rotary transverse shaft (9), a bolt (26) matched with the nut (19) is arranged in the nut (19), and the top of the bolt (26) is fixedly connected with the storage platform (20).
9. The movable bridge deck hogging moment tensioning device of claim 8, wherein: the storage platform (20) is formed by welding three steel sheets into a groove shape, a round hole for threading a steel wire rope to fix the jack (13) is formed in the bottom of the groove of the storage platform (20), and the groove of the storage platform (20) is matched with a telescopic rod of the jack (13).
10. The movable bridge deck hogging moment tensioning device of claim 1, wherein: and the end part of the suspended end of the rotary transverse shaft (9) is fixedly connected with a positioning steel sheet (17).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202210912696.XA CN115262400A (en) | 2022-07-30 | 2022-07-30 | Movable bridge floor hogging moment stretch-draw operating means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202210912696.XA CN115262400A (en) | 2022-07-30 | 2022-07-30 | Movable bridge floor hogging moment stretch-draw operating means |
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CN115262400A true CN115262400A (en) | 2022-11-01 |
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CN202210912696.XA Pending CN115262400A (en) | 2022-07-30 | 2022-07-30 | Movable bridge floor hogging moment stretch-draw operating means |
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2022
- 2022-07-30 CN CN202210912696.XA patent/CN115262400A/en active Pending
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