CN210341671U

CN210341671U - Bridge rotation construction is with preventing strutting arrangement that topples

Info

Publication number: CN210341671U
Application number: CN201921062560.4U
Authority: CN
Inventors: 邱金喜; 伍新民; 盛汉洋; 吴岩; 吴意杰
Original assignee: Zhongnan Construction Group Co ltd
Current assignee: Zhongnan Construction Group Co ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-04-17
Anticipated expiration: 2029-07-09

Abstract

The utility model discloses a bridge is turned construction and is used strutting arrangement that prevents toppling, including lower carousel and last carousel, it has the axle center to peg graft in the upper end of carousel down, the top cover in axle center has the tetrafluoro pipe, the lower extreme of going up the carousel is opened there is the slot, it has last carousel steel pipe to peg graft in the slot, the shape of going up the carousel steel pipe is hat shape, the below of going up the brim of a hat of carousel steel pipe is evenly opened there is annular spout, the top surface of carousel is located the outer lane in axle center down and evenly is provided with annular slide rail, it has four fixed slots of group to open on the carousel down, the installation is fixed with four pneumatic cylinders of group in the fixed slot, be connected with the support on the upper end output of pneumatic cylinder, it has the spacing groove to open in the support, the spacing inslot installation of spin is fixed with, install four. This bridge is turned construction and is used support device that prevents toppling, it is big to rotate the process support scope, and anti-tilt stability can be good, and the support effect is good.

Description

Bridge rotation construction is with preventing strutting arrangement that topples

Technical Field

The utility model relates to a bridge construction technical field specifically is a bridge is turned construction and is used strutting arrangement that prevents toppling.

Background

In recent years, with the construction of high-speed railways and highways, a large number of large bridges spanning existing railways and highways are developed in succession. The large bridge is restricted by construction environment and traffic factors, and the difficulty is very high by adopting a conventional construction method; usually, a swivel method is adopted for construction so as to better avoid the influence on the transportation of other lines.

The construction of the turning method is that the half-bridge is prefabricated at a proper position, and then the bridge structure is used as a rotating body, and some equipment is used for respectively turning the two half-bridges to the axial line position of the bridge position to form the bridge. However, in the bridge rotation construction process, because the center of gravity cannot be completely guaranteed at the rotation axis, the center of gravity of the bridge has an eccentric distance from the axis in the rotation process, and the eccentric distance generates an overturning moment, which usually causes the bridge to incline, thereby causing the rotation failure. The existing anti-overturning system for swivel construction mostly adopts reinforced concrete temporary connection and concrete support, and the method has the defects of long construction preparation time, poor bearing capacity, time consumption and labor consumption due to physical damage before swivel.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a bridge is turned construction and is used for solving the problem mentioned in the background art with preventing toppling strutting arrangement.

The utility model discloses a following technical scheme realizes: an overturn-preventing supporting device for bridge rotation construction comprises a lower rotary table and an upper rotary table, wherein the upper end of the lower rotary table is spliced with an axis, a tetrafluoride pipe is sleeved above the axis, and the arranged tetrafluoride pipe enables a slot to effectively reduce the friction coefficient when the slot rotates on the axis, the lower end of the upper rotary table is provided with a slot, an upper rotary table steel pipe is inserted and connected in the slot, the upper rotary table steel pipe is in a hat shape, annular sliding grooves are uniformly formed below the hat edge of the upper rotary table steel pipe, the axis and the slot are spliced with each other, annular sliding rails are uniformly arranged on the outer ring of the top surface of the lower rotary table, which is positioned on the axis, the annular sliding rails and the annular sliding grooves are clamped with each other, the annular sliding rails arranged on the lower rotary table and the annular sliding grooves of the upper rotary table are clamped with each other, so as to keep the stability in the horizontal rotation, the supporting range, it has four groups of fixed slots to open down on the carousel, the fixed slot internal installation is fixed with four groups of pneumatic cylinders, be connected with the support on the upper end output of pneumatic cylinder, set up the spacing groove in the support, spacing inslot installation is fixed with the spin, and the pneumatic cylinder of setting is used for balancing the carousel, install four groups of pressure measurement equipment down between carousel and the last carousel, the pressure measurement equipment of setting for detect down the pressure between carousel and the last carousel, if the last carousel takes place the slope, then be located the pressure grow that the pressure measurement equipment of incline direction detected, can be with the quick pneumatic cylinder of transmitting on its next door of signal, then the pneumatic cylinder passes through constructor's control jack-up, and is effectual to last carousel support.

Preferably, the pressure detection device comprises a pressure sensor arranged on one side of the upper support of the hydraulic cylinder, and the pressure detection device is connected with a receiving PC device through a communication cable.

Preferably, a gap is formed between the upper end of the tetrafluoro pipe and the upper turntable steel pipe, so that friction force is reduced.

Preferably, the outer surface of the annular slide rail is coated with a polytetrafluoroethylene outer sheath, and the annular slide rail is embedded in the annular chute.

Preferably, the rolling ball is movably arranged in the limiting groove, and a gap is formed between the upper side of the rolling ball and the lower surface of the upper rotary disc steel pipe brim.

Preferably, a gap is formed between the pressure detection equipment and the lower surface of the upper turntable steel pipe brim.

The utility model provides a bridge is turned construction and is used strutting arrangement that prevents toppling. The method has the following beneficial effects:

(1) this bridge is rotated construction and is used strutting arrangement that prevents toppling, the tetrafluoro pipe of setting makes the slot when the axle center is rotatory, can effectual reduction coefficient of friction, and mutual joint between the annular slide rail that sets up on the lower rotary table and the annular spout of last carousel to stability when keeping the flat rotation, the rotation process support range is big, and anti-tilting stability can be good.

(2) This bridge is turned construction and is used preventing strutting arrangement that topples, the pressure measurement equipment of setting for detect down carousel and go up the pressure between the carousel, if go up the carousel and take place the slope, then lie in the pressure measurement equipment of incline direction and detect the pressure grow, can give the pneumatic cylinder on its next door with the quick transmission of signal, then the pneumatic cylinder passes through constructor's control jack-up, and the effectual carousel that goes up supports.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the lower turntable of the present invention;

FIG. 3 is a schematic view of the hydraulic cylinder of the present invention;

fig. 4 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a lower turntable; 2. an upper turntable; 3. an axis; 4. an upper rotating disc steel pipe; 5. a tetrafluoride pipe; 6. a gap; 7. an annular chute; 8. an annular slide rail; 9. a polytetrafluoroethylene outer sheath; 10. fixing grooves; 11. a hydraulic cylinder; 12. a support; 13. rolling a ball; 14. a slot; 15. a limiting groove; 16. a pressure detection device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an overturn-preventing supporting device for bridge swivel construction comprises a lower rotary table 1 and an upper rotary table 2, wherein an axle center 3 is inserted at the upper end of the lower rotary table 1, a tetrafluoride pipe 5 is sleeved above the axle center 3, and the arranged tetrafluoride pipe 5 enables a slot 14 to effectively reduce friction coefficient when the slot 14 rotates on the axle center 3, the lower end of the upper rotary table 2 is provided with the slot 14, an upper rotary table steel pipe 4 is inserted and connected in the slot 14, the upper rotary table steel pipe 4 is hat-shaped, annular sliding grooves 7 are uniformly formed below the hat brim of the upper rotary table steel pipe 4, the axle center 3 and the slot 14 are inserted and connected with each other, annular sliding rails 8 are uniformly arranged on the outer ring of the axle center 3 on the top surface of the lower rotary table 1, the annular sliding rails 8 and the annular sliding grooves 7 are clamped with each other, the annular sliding rails 8 arranged on the lower rotary table 1 and the annular sliding grooves 7 of the upper, in order to keep stability during flat rotation, the support range in the rotation process is large, the anti-tilting stability performance is good, four groups of fixing grooves 10 are formed in the lower rotary table 1, four groups of hydraulic cylinders 11 are fixedly installed in the fixing grooves 10, a support 12 is connected to the output end of the upper end of each hydraulic cylinder 11, a limiting groove 15 is formed in the support 12, a rolling ball 13 is fixedly installed in the limiting groove 15, each hydraulic cylinder 11 is arranged and used for balancing the upper rotary table 2, four groups of pressure detection devices 16 are installed between the lower rotary table 1 and the upper rotary table 2, each pressure detection device 16 is arranged and used for detecting the pressure between the lower rotary table 1 and the upper rotary table 2, if the upper rotary table 2 is inclined, the pressure detected by the pressure detection devices 16 in the inclined direction is increased, signals can be rapidly transmitted to the hydraulic cylinders 11 beside the upper rotary table, and then the hydraulic cylinders 11 are jacked up, effectively supporting the upper rotary disk 2.

Specifically, pressure measurement equipment 16 is including installing the pressure sensor in pneumatic cylinder 11 upper bracket 12 one side, and pressure sensor's specific model is a BF801M series of bai yi accuse, there is receiving PC equipment through communication cable connection on pressure measurement equipment 16, be provided with clearance 6 between the upper end of tetrafluoro pipe 5 and the last carousel steel pipe 4, reduces frictional force, the cladding has tetrafluoro covering 9 on annular slide rail 8's the surface, annular slide rail 8 inlays in annular spout 7, the activity of spin 13 sets up in spacing groove 15, clearance setting between the upside of spin 13 and the lower surface of the last 4 rims of carousel steel pipe, clearance setting between the lower surface of pressure measurement equipment 16 and the last 4 rims of carousel steel pipe.

During the use, the tetrafluoro pipe 5 of setting, when making slot 14 rotatory on axle center 3, can effectual reduction coefficient of friction, mutual joint between the annular slide rail 8 that sets up on lower carousel 1 and the annular spout 7 of last carousel 2, stability when keeping the flat turn, it is big to rotate process support range, anti-tilt stability can be good, the pressure measurement equipment 16 of setting, a pressure between carousel 1 and the last carousel 2 of being used for detecting down, if go up carousel 2 and take place the slope, the pressure grow that the pressure measurement equipment 16 that is located the incline direction detected, can transmit the quick pneumatic cylinder 11 of transmitting its next door of signal, then pneumatic cylinder 11 jacks up through constructor's control, effectually support last carousel 2.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a bridge is turned construction and is used strutting arrangement that prevents toppling, includes carousel (1) and last carousel (2) down, its characterized in that: the upper end of the lower rotary table (1) is spliced with an axle center (3), a tetrafluoride pipe (5) is sleeved above the axle center (3), the lower end of the upper rotary table (2) is provided with a slot (14), an upper rotary table steel pipe (4) is spliced in the slot (14), the upper rotary table steel pipe (4) is in a hat shape, annular sliding grooves (7) are uniformly formed below the hat edge of the upper rotary table steel pipe (4), the axle center (3) and the slot (14) are spliced with each other, annular sliding rails (8) are uniformly arranged on the outer ring of the axle center (3) on the top surface of the lower rotary table (1), the annular sliding rails (8) and the annular sliding grooves (7) are clamped with each other in a sliding manner, four groups of fixing grooves (10) are formed on the lower rotary table (1), four groups of hydraulic cylinders (11) are fixedly installed in the fixing grooves (10), and a support (12) is connected to the upper end output end, a limiting groove (15) is formed in the support (12), a rolling ball (13) is fixedly arranged in the limiting groove (15), and four groups of pressure detection equipment (16) are arranged between the lower rotary disc (1) and the upper rotary disc (2).

2. The overturn-preventing supporting device for bridge swivel construction as claimed in claim 1, wherein: the pressure detection equipment (16) comprises a pressure sensor arranged on one side of an upper support (12) of the hydraulic cylinder (11), and the pressure detection equipment (16) is connected with receiving PC equipment through a communication cable.

3. The overturn-preventing supporting device for bridge swivel construction as claimed in claim 1, wherein: and a gap (6) is arranged between the upper end of the tetrafluoride pipe (5) and the upper turntable steel pipe (4).

4. The overturn-preventing supporting device for bridge swivel construction as claimed in claim 1, wherein: the outer surface of the annular slide rail (8) is coated with a tetrafluoro outer sheath (9), and the annular slide rail (8) is embedded in the annular slide groove (7).

5. The overturn-preventing supporting device for bridge swivel construction as claimed in claim 1, wherein: the rolling ball (13) is movably arranged in the limiting groove (15), and a gap is formed between the upper side of the rolling ball (13) and the lower surface of the brim of the upper rotary disc steel pipe (4).

6. The overturn-preventing supporting device for bridge swivel construction as claimed in claim 1, wherein: and a gap is formed between the pressure detection equipment (16) and the lower surface of the cap edge of the upper turntable steel pipe (4).