DE202022102293U1 - Horizontal modular expansion compensation device for bridge cables - Google Patents

Abstract

Horizontal modular elongation and length contraction compensating device for power supply bridge cables, comprising a bending angle compensating mechanism (1), a movable table (2), a connecting arch module (3) and a base frame (5), wherein
the bending angle adjusting mechanism (1), the movable table (2) and the connection arch module (3) are arranged on the base frame (5),
one end of the bending angle adjusting mechanism (1) is connected to a bridge box girder and the other end is connected to the movable table (2), and
the other end of the movable table (2) is connected to the connection arch module (3) and the connection arch module (3) is arranged horizontally, wherein
when two adjacent bridge box girders expand and contract or move toward or away from each other due to temperature changes, the amount of length expansion or length contraction between the two adjacent bridge box girders is transmitted from the bending angle compensation mechanism (1) to the movable table (2), so that the moving table (2) moves and drives the connecting arc module (3) to produce an arc change.

Description

TECHNICAL AREA

The present utility model relates to the technical field of bridge cable accessories, and particularly relates to a horizontal modular length expansion and length contraction compensation device for power bridge cables, which is specifically designed to solve the problem of expansion arc compensation of bridge cables for power supply under the conditions of little available space or construction volume in the height and width direction was developed.

STATE OF THE ART

With the acceleration of domestic island construction, the laying of power supply cables on the supporting islands has also been carried out at the same time. Compared to overhead and submarine cable solutions, a solution using bridge-laid cables for power supply offers the advantages of low cost, high reliability and easy maintenance due to extensive overhead span, seabed conditions, waterways and other factors.

However, when laying bridge cables for power supply, the problem arises that the expansion joints between two adjacent bridge box girders change with the change in ambient temperature, ie the expansion joints expand or contract. In order to avoid damage caused by additional stress due to the change of expansion joints between two adjacent bridge box girders, when spanning the expansion joints between two adjacent bridge box girders, an arc-shaped length expansion and length contraction compensation device must be additionally provided to ensure that the bridge cable to the power supply expands synchronously with the expansion or contraction of the bridge box girder or the respective expansion joint and the minimum bending radius of the bridge cable serving for the power supply when retracted is above the permissible bending radius.

CONTENTS OF THE PRESENT UTILITY MODEL

In order to solve the problem of arcuate length expansion and length contraction compensation of power supply bridge cables under the conditions of insufficient space in the height direction, the present utility model provides a horizontal modular length expansion and length contraction compensation device for bridge cables for power supply. When the expansion gaps between two adjacent bridge box girders change, the arch change of each arch plate in the connecting arch module absorbs or releases the same amount of compensation as the amount of expansion gap change, thereby achieving the purpose of compensating for the expansion or contraction and protecting the bridge cable.

To this end, the present provides a horizontal modular length expansion and length contraction compensation device for a power supply bridge cable, comprising a bending angle compensation mechanism, a movable table, a connecting arc module and a base frame, wherein the bending angle compensation mechanism, the movable table and the connecting arc module are arranged on the base frame, with one end of the bending angle compensation mechanism connected to the bridge box girder and the other end connected to the movable table, the other end of the movable table being connected to the connecting arch module, with the connecting arch module being arranged horizontally.

When the two adjacent bridge box girders expand and contract or move relative to each other due to temperature changes, the amount of length expansion or length contraction between two adjacent bridge box girders is transmitted to the movable table by the bending angle compensation mechanism. The moveable table moves and drives or displaces the connecting arc module to create an arc change.

Further, it is provided that the length expansion and length contraction compensating device for bridge cables for power supply further comprises a bridge cable guide frame, wherein the bridge cable guide frame is fixed to the base frame.

Furthermore, it is provided that the bending angle compensation mechanism comprises a front bending angle frame and a rear bending angle frame which is rotatable relative to the front bending angle frame.
wherein the rear end of the front flexure frame is connected to the front end of the rear flexure frame through a flexure side axis, thereby realizing a small rotation between the front flexure frame and the rear flexure frame, wherein the rear end center of the front flex angle frame is connected to the front end center of the rear flex angle frame through a flex angle center axis, so that the rear flex angle frame can rotate easily with the flex angle center axis as a center.

Furthermore, it is also provided that the front end of the front bending angle frame is axially connected to one side of the bending angle floor frame by a bending angle axis, with another side of the bending angle floor frame being connected to the bridge box girder, the bending angle axis passing through the front end of the front folding frame, so that both ends are installed through the bearing and bearing seat on the bending angle floor frame.

Further, it is also provided that the rear end of the rear bending angle frame is connected to one end of the bending angle rotating arm through a positioning column, the other end of the bending angle rotating arm is connected to the movable table, the inner end of the positioning column to the side wall of the rear end of the rear fixed to the bender frame, the bender pivot arm being threadedly connected to the positioning column such that the bender pivot arm is rotatable relative to the rear bender frame.

It is further provided that the two side walls of the rear end of the front bending angle frame and the two side walls of the front end of the rear bending angle frame are provided with connecting pieces, the bending angle side axis being a bolt passing through two connecting pieces on the same side and connected with a nut is.

Furthermore, it is also provided that the connecting pieces on the two side walls of the rear end of the front bending angle frame are provided with an elliptical hole for the bolt to pass through.

Further, it is envisaged that the movable table includes a movable frame and a bridge cable clamp, the bridge cable clamp is installed on a movable frame, the base frame is provided with a lower support wheel and a side guide wheel, which are used in common with the movable frame, so that the movable frame can move back and forth horizontally.

It is further provided that the connecting arc module includes a plurality of single arcs connected in series, each single arc including an arc plate, a body frame, a multi-dimensional motion synthesis mechanism and a differential mechanism, the arc plate being installed on the body frame so that the degree of deformation of the arc plate by the Body frame is controlled, wherein the multi-dimensional motion synthesis mechanism comprises a stopper, a first slide, a support table and a second slide installed on the base frame, the first slide being installed on the stopper and moving in the X-axis direction back and forth can slide forth, where the carrier table is fixedly installed on the first carriage and slides back and forth with the first carriage, where the second carriage is installed on the carrier table and can slide back and forth in the Y-axis direction, with the bottom the arch plate and des body frame is installed on the support table, the support table supporting the sheet plate and the body frame.

Furthermore, it is also envisaged that the connecting arch module is formed by connecting three single arches in series, the first two single arches being provided with a differential mechanism, whereby the amount of longitudinal expansion or longitudinal contraction between the two bridge box girders is evenly transmitted through the differential mechanism to the arch plate and the body frame becomes.

The bend radius of the attached bridge cable changes with the change in chord length of the arch plate. When the bending radius of the bridge cable changes, the distance between the two ends of the bridge cable fixed to the connecting arch module changes, thereby achieving the purpose of compensating for the amount of lengthening or lengthening contraction between the two bridge box girders.

In the present utility model, the bending angle and the displacement between the two bridge box girders are absorbed by the bending angle absorbing mechanism. Through the synchronous equivalent change of each single arch in the horizontally arranged connecting arch module, the superimposition of the change amount of each single arch can achieve expansion compensation of 1200mm to 1700mm to meet the requirements of the length expansion or length contraction size of the expansion joints between the bridges. In the present utility model, the power supply bridge cable can be prevented from being subjected to an additional stress due to the change in expansion joints between the bridges, and at the same time, the minimum bending radius of the bridge cable can be controlled over the allowable bending radius.

character list

• 1 Fig. 12 is a schematic structural diagram according to the present utility model;
• 2 Fig. 12 is a schematic structural diagram of a connecting arch module according to the present utility model;
• 3 Fig. 12 is a schematic structural diagram of a bending angle adjusting mechanism and a moving table according to the present utility model;
• 4 FIG. 14 is a structural reinforcement diagram of Part A (ie, bending angle compensation mechanism) in FIG 3 ;
• 5 Fig. 12 is a schematic structural diagram of a single arch in a connecting arch module according to the present utility model;
• 6 Fig. 12 is a schematic structural diagram of a multi-dimensional motion synthesis mechanism according to the present utility model.

DETAILED DESCRIPTION

The present utility model will be described in detail in combination with the drawings of the specification and the specific embodiments.

Horizontal modular length expansion and length contraction compensation device for bridge cables, comprising a bending angle compensation mechanism 1, a movable table 2, a connecting arch module 3, a bridge cable guide frame 4 and a base frame 5, wherein the bending angle compensation mechanism 1, the movable table 2 and the connecting arc module 3 are arranged on the base frame 5, with the bridge cable guide frame 4 fixed to the base frame 5, the bridge cable guide frame comprising a bridge cable clamp, so that the bridge cables can be brought back into a horizontal parallel laying mode for power supply through the bridge cable clamp, as in 1 shown.

Wherein one end of the bending angle compensating mechanism 1 is connected to the bridge box girder and the other end is connected to the movable table, the other end of the movable table is connected to the connecting arch module with the connecting arch module being arranged horizontally.

When the two bridge box girders expand and contract, the amount of length expansion or length contraction between the two bridge box girders is transmitted to the movable table 2 by the bending angle compensation mechanism 1 . The moving table 2 moves and drives the connecting arc module 3 to produce an arc change.

Wherein the flex angle adjusting mechanism 1 comprises a front flex angle frame 11 and a rear flex angle frame 12 rotatably movable relative to the front flex angle frame 11, as shown in FIG 3-4 shown.

Wherein the rear end of the front flexure frame 11 is connected to the front end of the rear flexure frame 12 through a flexure side axis 15, thereby realizing a small rotation between the front flexure frame 11 and the rear flexure frame 12, the rear end center of the front flexure frame 11 with the front end center of the rear bending angle frame 12 through a bending angle central axis 17, so that the rear bending angle frame 12 can rotate slightly with the bending angle central axis 17 as a center (the rotation angle is within 10 degrees), so that the rotation amplitude with the amplitude of the small rotation between corresponds to the front bending angle frame 1 and the rear bending angle frame 2.

Wherein the front end of the front bending angle frame 11 is axially connected to one side of the bending angle bottom frame 13 by a bending angle axis 14, another side of the bending angle bottom frame 13 is connected to the bridge box girder, the bending angle axis 14 passing through the front end of the front folding frame 11, so that both ends are installed on the bending angle floor frame through the bearing and bearing seat.

The rear end of the rear bending angle frame 12 is connected to one end of the bending angle rotating arm 16 through a positioning column, the other end of the bending angle rotating arm 16 is connected to the movable table, the inner end of the positioning column to the side wall of the rear end of the rear bending angle frame 12 with the flexure pivot arm 16 being threadedly connected to the positioning column such that the flexure pivot arm 16 is rotatable relative to the rear flexure frame.

Wherein the two side walls of the rear end of the front bending angle frame 11 and the two side walls of the front end of the rear bending angle frame 12 with Verbindungsstü corners are provided, the bending angle side axis 15 is a bolt passing through two connectors on the same side and connected with a nut, the connectors on the two side walls of the rear end of the front bending angle frame 11 with an elliptical hole 18 for passing through the Bolts are provided.

Wherein the movable table 2 comprises a movable frame and a bridge cable clamp, the bridge cable clamp is installed on a movable frame, the base frame 5 is provided with a lower support wheel 51 and a side guide wheel 52, which are used in common with the movable frame, so that the movable frame can move back and forth horizontally.

Wherein the connecting arc module 3 comprises a plurality of single arcs connected in series, each single arc comprising an arc plate 31, a body frame 32, a multi-dimensional motion synthesis mechanism 33 and a differential mechanism 34, the arc plate 31 being installed on the body frame 32 so that the degree of deformation of the Arch plate 31 is controlled by body frame 32, as in 2 and 5 shown.

Wherein the multi-dimensional motion synthesis mechanism comprises a stopper 331, a first carriage 332, a support table 333 and a second carriage 334 installed on the base frame 5, the first carriage 332 being installed on the stopper 331 and moving in the direction of the X Axis can slide back and forth with the support table 333 fixedly installed on the first carriage 332 and slides back and forth with the first carriage 332 with the second carriage 334 installed on the support table 333 and in the Y-axis direction and fro, with the bottom of the arc plate 31 and the body frame 32 being installed on the support table 333, the support table 333 supporting the arc plate 31 and the body frame 32 as in FIG 6 shown.

Wherein the connecting arch module 3 is formed by connecting three single arches in series, the first two single arches are provided with a differential mechanism, whereby the amount of longitudinal expansion or longitudinal contraction between the two bridge box girders is uniformly transmitted to the arch plate and the body frame by the differential mechanism.

The working principle of the present utility model is as follows: the bridge cable for power supply passes through the bending angle adjusting mechanism 1 from one side of the bridge box girder and is fixed to the movable table 2, the connecting arch module 3, the bridge cable guide frame 4 and the base frame 5 by a bridge cable clamp. When the bending angle and the displacement occur between the two bridge box girders, the bending angle absorbing mechanism 1 absorbs the bending angle and the displacement between the two bridge box girders by the mechanical movement at the axial joint in the corresponding direction. When the two bridge box girders expand and contract, the amount of length expansion or length contraction between the two bridge box girders is transmitted to the movable table 2 by the bending angle compensation mechanism 1 . The moving table 2 moves and drives the connecting arc module 3 to produce an arc change. When the expansion joint between the two bridge box girders is lengthened, the three single arches of the connecting arch module 3 simultaneously generate the same elongation amount of chord lengths, and the sum of the elongation amounts of the chord lengths of the three single arches is equal to the elongation amount of the expansion joint. When the expansion joint between the two bridge box girders is retracted, the three single arches of the connecting arch module 3 simultaneously produce the same amount of retraction of chord lengths, and the sum of the amounts of retraction of the chord lengths of the three single arches is equal to the amount of retraction of the expansion joint.

Content not described in detail in the present description belongs to the prior art known to a person skilled in the art in this field. In addition, it should be noted that the above content described in the present specification is only an example of the structure of the present utility model. All equivalent changes made according to the structure, features and principles described in the patent conception of the present utility model are included in the scope of the present utility model. Modifications and additions to the specific embodiments described may be made by those skilled in the art to which this utility model relates. As long as it does not deviate from the structure of the present utility model or exceed the scope defined in the present claims, it should fall within the scope of the present utility model.

Claims (10)

Horizontal modular length expansion and length contraction compensation device for A power supply bridge cable comprising a bending angle adjusting mechanism (1), a moving table (2), a connecting arch module (3) and a base frame (5), wherein the bending angle adjusting mechanism (1), the moving table (2) and the connecting arch module (3) are placed on the base frame (5), one end of the bending angle adjusting mechanism (1) is connected to a bridge box girder and the other end is connected to the movable table (2), and the other end of the movable table (2) is connected to the connecting arch module (3) and the connecting arch module (3) is arranged horizontally, wherein when two adjacent bridge box girders expand and contract or move towards or away from each other due to temperature changes, the amount of length expansion or length contraction between the two adjacent ones bridge box girders from the bending angle compensation mechanism (1) to the moving table (2). d, so that the movable table (2) moves and drives the connecting arc module (3) to produce an arc change. Horizontal modular length elongation and length contraction compensation device for power supply bridge cables according to claim 1 , further comprising a bridge cable guide frame (4), the bridge cable guide frame (4) being fixed to the base frame (5). Horizontal modular length elongation and length contraction compensation device for power supply bridge cables according to claim 1 or 2 , wherein the bending angle compensation mechanism (1) comprises a front bending angle frame (11) and a rear bending angle frame (12) which is rotatable relative to the front bending angle frame (11), the rear end of the front bending angle frame (11) being connected to the front end of the rear flexure frame (12) is connected by a flexure side axis (15), thereby realizing a small rotation between the front flexure frame (11) and the rear flexure frame (12), with the rear end center of the front flexure frame (11) having the front end center of the rear flex angle frame (12) by a flex angle center axis (17) so that the rear flex angle frame (12) can rotate easily with the flex angle center axis (17) as a center. Horizontal modular length elongation and length contraction compensation device for power supply bridge cables according to claim 3 , wherein the front end of the front flex angle frame (11) is axially connected to a first side of a flex angle floor frame (13) by a flex angle axle (14), another side of the flex angle floor frame (13) is connected to the bridge box girder, and the flex angle axle (14) passes through the front end of the front folding frame (11) so that both ends are installed through a bearing and a bearing seat on the bending angle bottom frame (13). Horizontal modular length elongation and length contraction compensation device for power supply bridge cables according to claim 3 , wherein the rear end of the rear bending angle frame (12) is connected to one end of a bending angle rotating arm (16) through a positioning column, the other end of the bending angle rotating arm (16) is connected to the movable table (2), the inner end of the positioning column to the side wall of the rear end of the rear flexure frame (12), and the flexure pivot arm (16) is threadedly connected to the positioning column such that the flexure pivot arm (16) is rotatable relative to the rear flexure frame (12). Horizontal modular length elongation and length contraction compensation device for power supply bridge cables according to claim 3 , wherein the two side walls of the rear end of the front bending angle frame (11) and the two side walls of the front end of the rear bending angle frame (12) are provided with connecting pieces, and the bending angle side axis (15) is formed as a bolt connected by two connecting pieces on the same Side runs and is connected to a nut. Horizontal modular length elongation and length contraction compensation device for power supply bridge cables according to claim 6 wherein the connecting pieces on the two side walls of the rear end of the front bending angle frame (11) are provided with an elliptical hole (18) for the bolt to pass through. Horizontal modular length elongation and length contraction compensation device for power supply bridge cables according to claim 1 , wherein the movable table (2) has a movable yard men and a bridge cable clamp, wherein the bridge cable clamp is installed on a movable frame, and the base frame (5) is provided with a lower support wheel (51) and a side guide wheel (52) which are used in common with the movable frame so that the movable frame can move back and forth horizontally. Horizontal modular length elongation and length contraction compensation device for power supply bridge cables according to claim 1 wherein the connecting arc module (3) comprises a plurality of single arcs connected in series, each single arc comprising an arc plate (31), a body frame (32), a multi-dimensional motion synthesis mechanism (33) and a differential mechanism (34), the arc plate (31). installed in the body frame (32) so that the degree of deformation of the arc plate (31) is controlled by the body frame (32), the multi-dimensional motion synthesis mechanism includes a stopper (331), a first carriage (332), a support table (333) and a second carriage (334) installed on the base frame (5), the first carriage (332) is installed on the stopper (331) and slides back and forth in the direction of an X-axis or in a first horizontal direction the support table (333) is fixedly installed on the first carriage (332) and can slide back and forth with the first carriage (332), the second carriage (334) on the support table (333) i installed and slidable in the direction of a Y-axis perpendicular to the X-axis and a second horizontal direction perpendicular to the first horizontal direction, respectively, the bottom of the arc plate (31) and the body frame (32) on the support table (333) are installed, and the support table (333) supports the arc plate (31) and the body frame (32). Horizontal modular length elongation and length contraction compensation device for power supply bridge cables according to claim 9 , wherein the connecting arch module (3) is formed by connecting three single arches in series, the first two single arches of the connecting arch module (3) are provided with a differential mechanism (34), so that the magnitude of the longitudinal expansion or longitudinal contraction between the two bridge box girders is uniformly determined by the differential mechanism ( 34) is transferred to the arch plate (31) and the body frame (32).

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