CN216290134U

CN216290134U - Angle folding mechanism of cable expansion compensation device along with bridge

Info

Publication number: CN216290134U
Application number: CN202122862955.6U
Authority: CN
Inventors: 龚坚刚; 裘立峰; 王晓东; 章李刚; 周文俊; 刘燕平
Original assignee: China United Engineering Corp Ltd; Zhejiang Huayun Electric Power Engineering Design Consulting Co
Current assignee: China United Engineering Corp Ltd; Zhejiang Huayun Electric Power Engineering Design Consulting Co
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-12
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a corner folding mechanism of a cable expansion compensation device along with a bridge. The utility model 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. When the positions of the two bridge box girders change, the utility model absorbs and transmits relative displacement, avoids being damaged along with the extra stress borne by the bridge cable expansion compensation device and the cable, and solves the engineering problem of absorbing and transmitting the relative displacement when the positions of the two bridge box girders change.

Description

Angle folding mechanism of cable expansion compensation device along with bridge

Technical Field

The utility model belongs to the field of bridge cable attachments, and relates to an angle folding mechanism of a compensation device along with bridge cable expansion, which is specially used for solving the problems of absorption and transmission of relative displacement between two bridge box girders.

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 stretches along with the expansion of the box girders, and the minimum bending radius of the cable is above the allowable bending radius during the contraction.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the defects in the prior art and provide the angle folding mechanism of the cable expansion compensation device along with the bridge, which can absorb and transmit the position change between the two box girders.

Therefore, the utility model adopts the following technical scheme: a corner mechanism of a cable expansion compensation device along with a bridge comprises a front corner frame and a rear corner frame which can rotate relative to the front corner 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 in shaft connection with one side of the bevel underframe, and the other side of the bevel underframe is connected with the bridge box girder.

Furthermore, the front bevel frame and the bevel underframe are coupled through a bevel shaft.

Furthermore, 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, and the other end of the bevel rotating arm is connected with a movable table.

Furthermore, the rear bevel frame is connected with the bevel rotating arm through a positioning column, the inner end of the positioning column is fixed on the side wall of 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.

Furthermore, the bevel center shaft is a bolt, the inner end of the bolt is fixed on the rear end part of the front bevel frame, and the outer end of the bolt penetrates through the front end part of the rear bevel frame and is connected with at least one nut.

Furthermore, the outer end of the bolt is provided with a positioning pin positioned outside the nut.

Compared with the prior art, the utility model has the following advantages: when the positions of the two bridge box girders change, the utility model absorbs and transmits relative displacement, and avoids being damaged along with the extra stress borne by the bridge cable expansion compensation device and the cable; the utility model has the advantages of smooth motion process, stable structure and convenient installation, and solves the engineering problem of relative displacement absorption and transmission when the position between two bridge box girders changes.

Drawings

FIG. 1 is a schematic structural diagram of a corner folding mechanism of the cable expansion compensation device along with a bridge of the utility model;

FIG. 2 is a schematic view of the mounting of the dog-ear mechanism of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

Detailed Description

The present invention will be described in detail below with reference to the drawings and the detailed description.

The bevel mechanism of the bridge-following cable expansion compensation device shown in fig. 1-3 comprises a front bevel frame 1, a rear bevel frame 2, a bevel bottom frame 3, a bevel shaft 4, a bevel side shaft 5, a bevel rotating arm 6 and a bevel center shaft 7.

The two sides of the rear end of the front bevel frame 1 are connected with the two sides of the front end of the rear bevel frame 2 by bevel side shafts 5, so that small-amplitude rotation (the rotation angle is within 10 degrees) between the front bevel frame 1 and the rear bevel frame 2 is realized; the rear end center of the front bevel frame 1 is connected with the front end center of the rear bevel frame 2 by a bevel center shaft 7, so that the rear bevel frame 2 can rotate in a small range (the rotation angle is within 10 degrees) by taking the bevel center shaft 7 as the center, and the rotation range is consistent with the small rotation range between the front bevel frame 1 and the rear bevel frame 2.

The front end of the front bevel frame 1 is connected with one side of the bevel underframe 3 through a shaft, and the other side of the bevel underframe 3 is connected with a bridge box girder 11. The front bevel frame 1 and the bevel bottom frame 3 are in shaft connection through a bevel shaft 4. The bevel shaft 4 penetrates through the front end of the front bevel frame 1, and two ends of the bevel shaft are installed on the bevel bottom frame through bearings and bearing seats.

The rear end of the rear bevel frame 2 is connected with one end of a bevel rotating arm 6, and the other end of the bevel rotating arm 6 is connected with a movable table 10. The rear dog-ear frame 2 is connected with the dog-ear swinging arm 6 through a positioning column, the inner end of the positioning column is fixed on the side wall of the rear end of the rear dog-ear frame 2, and the dog-ear swinging arm 6 is connected with the positioning column through threads, so that the dog-ear swinging arm 6 can rotate relative to the rear dog-ear frame.

The two side walls of the rear end of the front bevel frame 1 and the two side walls of the front end of the rear bevel frame 2 are both provided with connecting pieces 9, and the bevel side shaft 5 is a stud, penetrates through the two connecting pieces positioned on the same side and is connected with a nut. And the connecting pieces on the two side walls of the rear end of the front bevel frame 1 are respectively provided with an oval hole 8 for a stud to pass through.

The bevel center shaft 7 is a bolt, the inner end of the bolt is fixed on the rear end part of the front bevel frame 1, and the outer end of the bolt penetrates through the front end part of the rear bevel frame and is connected with two nuts. And a positioning pin positioned on the outer side of the nut is arranged at the outer end of the bolt to limit the position of the nut.

When the two bridge box girders are influenced by external force to be dislocated, distorted and stretched, the front bevel frame 1, the bevel bottom frame 3, the shaft connection between the bevel shafts 4 and the shaft connection between the rear bevel frame 2 and the bevel rotating arm 6 are rotated to absorb the dislocation between the two bridge box girders, the distortion between the two bridge box girders is absorbed through the relative rotation between the front bevel frame 1 and the rear bevel frame 2, and the stretching is conducted to the cable stretching compensation device to make the cable stretching compensation device perform compensation motion.

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 utility model as defined by the appended claims.

Claims

1. A corner folding mechanism of a cable telescopic compensation device along with a bridge is characterized by comprising a front corner folding frame (1) and a rear corner folding frame (2) which can rotate relative to the front corner folding frame (1);

both sides of the rear end of the front bevel frame (1) are connected with both sides of the front end of the rear bevel frame (2) through bevel side shafts (5), so that small-amplitude rotation between the front bevel frame (1) and the rear bevel frame (2) is realized; the rear end center of the front bevel frame (1) is connected with the front end center of the rear bevel frame (2) by a bevel center shaft (7), so that the rear bevel frame (2) can rotate in a small range by taking the bevel center shaft (7) as the center.

2. The folding mechanism of the cable expansion compensation device along with the bridge of claim 1, characterized in that the front end of the front folding angle frame (1) is connected with one side of a folding angle bottom frame (3) in an axial manner, and the other side of the folding angle bottom frame (3) is connected with the bridge box girder.

3. The folding mechanism of the cable expansion compensation device along with the bridge of claim 2, characterized in that the front folding angle frame (1) is coupled with the folding angle bottom frame (3) through a folding angle shaft (4).

4. The bevel mechanism of a cable expansion compensation device with a bridge as claimed in claim 3, wherein the bevel shaft (4) penetrates the front end of the front bevel frame (1), and both ends thereof are mounted on the bevel underframe through bearings and bearing seats.

5. The folding mechanism of the cable expansion compensation device along with the bridge as claimed in claim 1, characterized in that the rear end of the rear folding frame (2) is connected with one end of a folding angle rotating arm (6), and the other end of the folding angle rotating arm (6) is connected with a movable table.

6. The bevel mechanism of a cable expansion compensation device with a bridge as claimed in claim 5, wherein the rear bevel frame (2) is connected with the bevel rotation arm (6) by a positioning column, the inner end of the positioning column is fixed on the side wall of the rear end of the rear bevel frame (2), and the bevel rotation arm (6) is connected with the positioning column by a thread, so that the bevel rotation arm (6) can rotate relative to the rear bevel frame.

7. The bevel mechanism of a compensation device for cable telescoping with bridge of any one of claims 1-6, characterized in that two side walls at the rear end of the front bevel frame (1) and two side walls at the front end of the rear bevel frame (2) are provided with connecting members, and the bevel side shaft (5) is a stud passing through the two connecting members at the same side and connecting a nut.

8. The angle folding mechanism of the cable expansion compensation device along with the bridge of claim 7 is characterized in that the connecting pieces on the two side walls of the rear end of the front angle folding frame (1) are provided with an oval hole (8) for the stud to pass through.

9. The angle folding mechanism of the cable expansion compensation device along with the bridge as claimed in any one of claims 1-6, characterized in that the angle folding central shaft (7) is a bolt, the inner end of the bolt is fixed on the rear end of the front angle folding frame (1), and the outer end of the bolt penetrates through the front end of the rear angle folding frame and is connected with at least one nut.

10. The folding mechanism of a cable compensation device with bridge as claimed in claim 9, wherein the outer end of the bolt is provided with a positioning pin located outside the nut.