CN114566924A - Horizontal type modularization is along with flexible compensation arrangement of bridge cable - Google Patents
Horizontal type modularization is along with flexible compensation arrangement of bridge cable Download PDFInfo
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- CN114566924A CN114566924A CN202210204663.XA CN202210204663A CN114566924A CN 114566924 A CN114566924 A CN 114566924A CN 202210204663 A CN202210204663 A CN 202210204663A CN 114566924 A CN114566924 A CN 114566924A
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- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 238000010521 absorption reaction Methods 0.000 claims abstract description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000003786 synthesis reaction Methods 0.000 claims description 6
- 230000008602 contraction Effects 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
- H02G11/006—Arrangements of electric cables or lines between relatively-movable parts using extensible carrier for the cable, e.g. self-coiling spring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G3/0608—Joints for connecting non cylindrical conduits, e.g. channels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0456—Ladders or other supports
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a horizontal modular cable expansion compensation device along with a bridge. In order to avoid excessive deformation of the bridge cable, the bridge cable is additionally provided with a telescopic arc compensation device when crossing the expansion joint between the bridge box girders, so that the synchronous expansion of the bridge cable along with the expansion and contraction between the bridge box girders is ensured. The invention comprises a break angle absorption mechanism, a movable table, a double-arch module and a base stand, wherein the break angle absorption mechanism, the movable table and the double-arch module are arranged on the base stand; one end of the break angle absorption mechanism is connected with the bridge box girder, the other end of the break angle absorption mechanism is connected with the movable table, the other end of the movable table is connected with the multi-arch module, and the multi-arch module is horizontally arranged; when the two bridge box girders are changed in a telescopic way, the telescopic quantity between the two box girders is completely transmitted to the movable platform by the bevel absorption mechanism, the movable platform moves and drives the arch connecting module to generate arch change, and the arch change absorbs or releases the length equivalent to the change of the expansion joint, so that the purposes of compensating the telescopic way and protecting the cable are achieved.
Description
Technical Field
The invention belongs to the field of bridge cable accessory facilities, and relates to a horizontal modular bridge-following cable expansion compensation device which is specially used for solving the expansion arc compensation problem of a bridge cable under the condition of insufficient space in the height and width directions.
Background
Along with the acceleration of the construction of the domestic island, the laying work of the power supply cables in the island is synchronously carried out. By integrating factors such as overhead span, seabed conditions, navigation channels and the like, compared with overhead and submarine cable schemes, the bridge cable scheme has the advantages of low manufacturing cost, high reliability, easiness in maintenance and the like.
However, the bridge cable laying will face the problem that the expansion joint between the two box girders changes with the change of the environmental temperature, and in order to avoid the damage of the bridge cable caused by the extra stress borne by the change of the bridge expansion joint, a telescopic arc compensation device is added when the bridge cable crosses the bridge expansion joint, so as to ensure that the bridge cable synchronously expands and contracts along with the expansion and contraction of the box girders of the bridge, and the minimum bending radius of the cable is above the allowable bending radius during the contraction.
Disclosure of Invention
In order to solve the problem of expansion arc compensation of a bridge cable under the condition of insufficient space in the height direction, the invention provides a horizontal modular expansion compensation device along with the bridge cable.
Therefore, the invention adopts the following technical scheme: a horizontal modularized bridge-following cable expansion compensation device comprises a break angle absorption mechanism, a movable table, an arch connecting module and a base stand, wherein the break angle absorption mechanism, the movable table and the arch connecting module are arranged on the base stand;
one end of the bevel absorption mechanism is connected with the bridge box girder, the other end of the bevel absorption mechanism is connected with the movable platform, the other end of the movable platform is connected with the multi-arch module, and the multi-arch module is horizontally arranged;
when the two bridge box girders are changed in a telescopic way, the telescopic quantity between the two box girders is completely transmitted to the movable platform by the bevel absorption mechanism, and the movable platform moves and drives the arch connecting module to generate arch change.
Furthermore, the bridge cable telescopic arc compensation device further comprises a wire arranging frame, and the wire arranging frame is fixed on the base frame.
Furthermore, the bevel absorption mechanism comprises a front bevel frame and a rear bevel frame which can rotate relative to the front bevel frame;
two sides of the rear end of the front bevel frame are connected with two sides of the front end of the rear bevel frame through bevel side shafts, so that small-scale rotation between the front bevel frame and the rear bevel frame is realized; the rear end center of the front bevel frame is connected with the front end center of the rear bevel frame through a bevel center shaft, so that the rear bevel frame can rotate in a small range by taking the bevel center shaft as the center.
Furthermore, the front end of the front bevel frame is connected with one side of a bevel bottom frame through a bevel shaft, and the other side of the bevel bottom frame is connected with a bridge box girder; the bevel shaft penetrates through the front end of the front bevel frame, and two ends of the bevel shaft are mounted on the bevel bottom frame through bearings and bearing seats.
Furthermore, the rear end of the rear bevel frame is connected with one end of a bevel rotating arm through a positioning column, and the other end of the bevel rotating arm is connected with a movable table; the inner end of the positioning column is fixed on the side wall at the rear end of the rear bevel frame, and the bevel rotating arm is connected with the positioning column through threads, so that the bevel rotating arm can rotate relative to the rear bevel frame.
Furthermore, two side walls of the rear end of the front bevel frame and two side walls of the front end of the rear bevel frame are both provided with connecting pieces, and the bevel side shaft is a stud which penetrates through the two connecting pieces positioned on the same side and is connected with a nut.
Furthermore, the connecting pieces on the two side walls of the rear end of the front bevel frame are provided with elliptical holes for the studs to pass through.
Further, the movable table comprises a movable frame and a cable clamp; the cable clamp is installed on the movable frame, and the base frame is provided with a bottom riding wheel and a lateral guide wheel which are matched with the movable frame for use, so that the movable frame can flexibly and horizontally move.
Furthermore, the multi-arch module comprises a plurality of single arches which are connected in series, each single arch comprises an arch bar, a human-shaped frame, a multi-dimensional motion synthesis mechanism and a differential mechanism, the arch bar is installed on the human-shaped frame, and the deformation degree of the arch bar is controlled through the human-shaped frame; the multidimensional movement synthesis mechanism comprises a base platform arranged on the base platform, a first pulley, a bearing platform and a second pulley, wherein the first pulley is arranged on the base platform and can slide back and forth in the X-axis direction on the base platform; the bearing table is fixedly arranged on the first pulley and slides back and forth along with the first pulley; the second pulley is arranged on the bearing platform and can slide back and forth in the Y-axis direction; the bottom of the arch bar and the bottom of the man-shaped frame are arranged on the bearing table, and the bearing table plays a supporting role for the arch bar and the man-shaped frame.
Furthermore, the multi-arch module is formed by connecting three single arches in series, the front two single arches are respectively provided with a differential mechanism, and the expansion amount between the two box girders is uniformly transmitted to the arch plates and the human-shaped frame through the differential mechanisms.
The cable bending radius fixed on the arch plate is driven to change through the change of the chord length of the arch plate, and when the cable bending radius changes, the distance between two ends of the cable fixed on the arch connecting module changes, so that the purpose of compensating the expansion amount between two bridge box girders is achieved.
The invention absorbs the break angle and the dislocation between the two bridge box girders through the break angle absorbing mechanism, and can realize the expansion compensation of 1200mm to 1700mm through the synchronous equivalent change of each single arch in the horizontally placed multi-arch module by the superposition of the variable quantity of each single arch so as to adapt to the requirement of the expansion quantity of the bridge expansion joint; the invention can avoid the bridge cable bearing extra stress due to the change of the bridge expansion joint, and can control the minimum bending radius of the cable to be more than the allowable bending radius.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the multi-arch module of the present invention;
FIG. 3 is a schematic view of the construction of the dog-ear absorption mechanism and the movable stage of the present invention;
FIG. 4 is an enlarged view of the portion A (i.e., the dog-ear absorption mechanism) in FIG. 3;
FIG. 5 is a schematic structural diagram of a single arch in the multi-arch module of the present invention;
fig. 6 is a schematic structural diagram of the multi-dimensional motion synthesis mechanism of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1, the horizontal modular cable expansion compensation device along with the bridge is composed of a break angle absorption mechanism 1, a movable table 2, a multi-arch module 3, a wire arrangement frame 4 and a base stand 5, wherein the break angle absorption mechanism 1, the movable table 2 and the multi-arch module 3 are arranged on the base stand 5, and the wire arrangement frame 4 is fixed on the base stand 5. The cable arranging frame comprises a cable clamp, and the cable is restored to a horizontal parallel laying mode through the cable clamp.
One end of the break angle absorbing mechanism 1 is connected with the bridge box girder, the other end of the break angle absorbing mechanism is connected with the movable platform, the other end of the movable platform is connected with the multi-arch module, and the multi-arch module is horizontally arranged.
When the two bridge box girders are changed in a telescopic way, the telescopic quantity between the two box girders is completely transmitted to the movable platform 2 by the bevel absorption mechanism 1, and the movable platform 2 moves and drives the arch connecting module 3 to generate arch change.
As shown in fig. 3 to 4, the bevel absorbing mechanism 1 is composed of a front bevel frame 11 and a rear bevel frame 12 rotatable with respect to the front bevel frame 11.
Two sides of the rear end of the front bevel frame 11 are connected with two sides of the front end of the rear bevel frame 12 through bevel side shafts 15, so that small-amplitude rotation between the front bevel frame 11 and the rear bevel frame 12 is realized; the rear end center of the front bevel frame 11 is connected with the front end center of the rear bevel frame 12 by a bevel center shaft 17, so that the rear bevel frame 12 can rotate slightly (the rotation angle is within 10 degrees) by taking the bevel center shaft 17 as the center, and the rotation amplitude is consistent with the small rotation amplitude between the front bevel frame 1 and the rear bevel frame 2.
The front end of the front bevel frame 11 is connected with one side of a bevel underframe 13 through a bevel shaft 14, and the other side of the bevel underframe 13 is connected with a bridge box girder; the bevel shaft 14 penetrates through the front end of the front bevel frame 11, and two ends of the bevel shaft are mounted on the bevel bottom frame through bearings and bearing seats.
The rear end of the rear bevel frame 12 is connected with one end of a bevel rotating arm 16 through a positioning column, and the other end of the bevel rotating arm 16 is connected with a movable table; the inner end of the positioning column is fixed on the side wall at the rear end of the rear bevel frame 12, and the bevel rotating arm 16 is connected with the positioning column through threads, so that the bevel rotating arm 16 can rotate relative to the rear bevel frame.
Two side walls of the rear end of the front bevel frame 11 and two side walls of the front end of the rear bevel frame 12 are both provided with connecting pieces, and the bevel side shaft 15 is a stud, penetrates through the two connecting pieces positioned on the same side, and is connected with a nut. The connecting pieces on the two side walls of the rear end of the front bevel frame 11 are all provided with an oval hole 18 for a stud to pass through.
The movable table 2 consists of a movable frame and a cable clamp; the cable clamp is arranged on the movable frame, and the base stand 5 is provided with a bottom riding wheel 51 and a lateral guide wheel 52 which are matched with the movable frame for use, so that the movable frame horizontally moves back and forth.
As shown in fig. 2 and 5, the multiple arch module 3 includes a plurality of single arches connected in series, each single arch includes an arch 31, a human-shaped frame 32, a multi-dimensional motion synthesis mechanism 33 and a differential mechanism 34, the arch 31 is mounted on the human-shaped frame 32, and the deformation degree of the arch 31 is controlled by the human-shaped frame 32.
As shown in fig. 6, the multi-dimensional motion synthesizing mechanism includes a base 331 mounted on the base frame 5, a first pulley 332, a carrying platform 333, and a second pulley 334, wherein the first pulley 332 is mounted on the base 331 and can slide back and forth thereon in the X-axis direction; the bearing table 333 is fixedly arranged on the first pulley 332 and slides back and forth along with the first pulley 332; the second pulley 334 is mounted on the bearing table 333 and can slide back and forth in the Y-axis direction; the bottom parts of the arch plate 31 and the human-shaped frame 32 are arranged on a bearing table 333, and the bearing table 333 plays a supporting role for the arch plate 31 and the human-shaped frame 32.
The multi-arch module 3 is formed by connecting three single arches in series, the front two single arches are respectively provided with a differential mechanism, and the expansion amount between the two box girders is uniformly transmitted to the arch plates and the human-shaped frame through the differential mechanisms.
The working principle of the invention is as follows: the bridge cable passes through the bevel absorption mechanism 1 from one side box girder and is fixed on the mobile station 2, the arch connecting module 3, the wire arranging frame 4 and the base frame 5 by utilizing the cable clamp. When the two bridge box girders break and move in a staggered way, the break absorption mechanism 1 absorbs the break and the move in a staggered way between the two bridge box girders through the mechanical movement at the shaft joint in the corresponding direction. When the two bridge box girders are changed in a telescopic way, the telescopic quantity between the two box girders is completely transmitted to the movable platform 2 by the bevel absorption mechanism 1, and the movable platform 2 moves and drives the arch connecting module 3 to generate arch change. When the expansion joint between two bridge box girders is elongated, 3 single arches of the multi-arch module 3 simultaneously generate equivalent chord length elongation, and the sum of the chord length elongation of the 3 single arches is equal to the elongation of the expansion joint. When the expansion joint between the two bridge box girders contracts, 3 single arches of the multi-arch module 3 simultaneously generate equivalent chord length contraction, and the sum of the chord length contraction amounts of the 3 single arches is equal to the contraction amount of the expansion joint.
Those not described in detail in this specification are well within the skill of the art. In addition, it should be noted that the above contents described in the present specification are only illustrations of the structures of the present invention. Equivalent variations of the structures, features and principles described in accordance with the present inventive concepts are intended to be included within the scope of the present invention. Modifications, additions, etc. to the specific embodiments described herein may occur to those skilled in the art without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. A horizontal modularized bridge-following cable expansion compensation device is characterized by comprising a break angle absorption mechanism (1), a movable table (2), an arch connecting module (3) and a base stand (5), wherein the break angle absorption mechanism (1), the movable table (2) and the arch connecting module (3) are arranged on the base stand (5);
one end of the break angle absorbing mechanism (1) is connected with a bridge box girder, the other end of the break angle absorbing mechanism is connected with the movable table (2), the other end of the movable table (2) is connected with the double-arch module (3), and the double-arch module (3) is horizontally arranged;
when the two bridge box girders are changed in a telescopic way, the telescopic quantity between the two box girders is completely transmitted to the movable platform (2) by the bevel absorption mechanism (1), and the movable platform (2) moves and drives the arch connecting module (3) to generate arch change.
2. The horizontal modular cable expansion compensation device with bridge according to claim 1, further comprising a wire arrangement frame (4), wherein the wire arrangement frame (4) is fixed on the base frame (5).
3. A horizontal modular cable expansion compensating device with bridge as claimed in claim 1 or 2, characterized in that the bevel absorbing mechanism (1) comprises a front bevel frame (11) and a rear bevel frame (12) which can rotate relative to the front bevel frame (11);
both sides of the rear end of the front bevel frame (11) are connected with both sides of the front end of the rear bevel frame (12) through bevel side shafts (15), so that small-amplitude rotation between the front bevel frame (11) and the rear bevel frame (12) is realized; the rear end center of the front bevel frame (11) is connected with the front end center of the rear bevel frame (12) by a bevel center shaft (17), so that the rear bevel frame (12) can rotate slightly by taking the bevel center shaft (17) as the center.
4. A horizontal type modularized cable expansion compensation device along with bridge, according to claim 3, characterized in that the front end of the front angle folding frame (11) is connected with one side of an angle folding bottom frame (13) through an angle folding shaft (14), and the other side of the angle folding bottom frame (13) is connected with a bridge girder; the bevel shaft (14) penetrates through the front end of the front bevel frame (11), and two ends of the bevel shaft are mounted on the bevel bottom frame (13) through bearings and bearing seats.
5. The horizontal modular cable expansion compensation device along with the bridge of claim 3, characterized in that the rear end of the rear bevel frame (12) is connected with one end of a bevel rotating arm (16) through a positioning column, and the other end of the bevel rotating arm (16) is connected with the movable platform (2); the inner end of the positioning column is fixed on the side wall of the rear end of the rear bevel frame (12), and the bevel rotating arm (16) is connected with the positioning column through threads, so that the bevel rotating arm (16) can rotate relative to the rear bevel frame (12).
6. The horizontal modular cable expansion compensation device along with bridge of claim 3, characterized in that, the two side walls of the rear end of the front bevel frame (11) and the two side walls of the front end of the rear bevel frame (12) are provided with connecting pieces, the bevel side shaft (15) is a stud, penetrates through the two connecting pieces on the same side, and is connected with a nut.
7. A horizontal type modular cable expansion compensation device with bridge as claimed in claim 6, wherein the connecting pieces on the two side walls of the rear end of the front angle frame (11) are provided with an oval hole (18) for the stud to pass through.
8. A horizontal modular on-bridge cable expansion compensating device as claimed in claim 1, wherein said movable stage (2) comprises a movable frame and a cable clamp; the cable clamp is installed on the movable frame, and the base frame (5) is provided with a bottom riding wheel (51) and a lateral guide wheel (52) which are matched with the movable frame for use, so that the movable frame horizontally moves back and forth.
9. A horizontal modular cable expansion compensation device along with bridge according to claim 1, characterized in that said multiple arch module (3) comprises a plurality of single arches connected in series, each single arch comprises an arch (31), a human-shaped frame (32), a multi-dimensional motion synthesis mechanism (33) and a differential mechanism (34), said arch (31) is mounted on the human-shaped frame (32), and the deformation degree of the arch (31) is controlled by the human-shaped frame (32); the multidimensional movement synthesis mechanism comprises a base platform (331) arranged on a base frame (5), a first pulley (332), a bearing platform (333) and a second pulley (334), wherein the first pulley (332) is arranged on the base platform (331) and can slide back and forth on the base platform (331) in the X-axis direction; the bearing table (333) is fixedly arranged on the first pulley (332) and slides back and forth along with the first pulley (332); the second pulley (334) is arranged on the bearing table (333) and can slide back and forth in the Y-axis direction; the bottoms of the arch bar (31) and the human-shaped frame (32) are arranged on a bearing table (333), and the bearing table (333) plays a supporting role for the arch bar (31) and the human-shaped frame (32).
10. A horizontal modular cable expansion compensation device along with bridge according to claim 9, characterized in that said multiple arch module (3) is formed by connecting three single arches in series, the first two single arches are provided with a differential mechanism (34), and the expansion amount between the two box girders is transmitted to the arch plate (31) and the human frame (32) through the differential mechanism (34).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021229406447 | 2021-11-22 | ||
| CN202122940644 | 2021-11-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114566924A true CN114566924A (en) | 2022-05-31 |
| CN114566924B CN114566924B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210204663.XA Active CN114566924B (en) | 2021-11-22 | 2022-03-03 | Horizontal modularized bridge-following cable expansion compensation device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114566924B (en) |
| DE (1) | DE202022102293U1 (en) |
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2022
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| Publication number | Publication date |
|---|---|
| CN114566924B (en) | 2023-10-27 |
| DE202022102293U1 (en) | 2022-05-19 |
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