CN213978627U

CN213978627U - Main cable strand traction system

Info

Publication number: CN213978627U
Application number: CN202022763376.1U
Authority: CN
Inventors: 赵凌冬; 李明鹏
Original assignee: Chongqing Wanqiao Communication Tech Co ltd
Current assignee: Chongqing Wanqiao Communication Tech Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-17
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a main push-towing system, including bearing rope, drag and draw ware, haulage rope and hoist engine. The both ends of bearing cable are fixed the setting respectively, and the ware of pulling is provided with the gyro wheel, and the gyro wheel slides along bearing cable, and the ware of pulling is used for connecting treating to pull main cable strand. The traction cable is connected with the drawing device, and the traction cable and the main cable strand are respectively positioned on two opposite sides of the drawing device. The winch is connected with the traction cable, and the winch pulls the dragging device to slide through the traction cable, so that the dragging device pulls the main cable strand to move. Above-mentioned main cable strand traction system separates into bearing rope and haulage cable construction respectively with traditional wire rope construction of drawing, can replace traditional large-scale hoist engine with small-size hoist engine, has cancelled structures such as little portal, little guide pulley and big guide pulley in traditional construction moreover, and not only system simple structure, with low costs, the atress is clear and definite moreover, draw stably.

Description

Main cable strand traction system

Technical Field

The utility model relates to a main push-towing rope strand construction technical field, concretely relates to main push-towing rope strand traction system.

Background

The main cable strand of the domestic suspension bridge is generally erected by adopting a PPWS method, the traction process of the suspension bridge can use structures such as a traction steel wire rope, a small portal frame, a small guide wheel and a large guide wheel, and the system structure is complex. The traction steel wire rope not only has the bearing function, but also has the traction function, and the bearing has large requirements on the strength of the traction steel wire rope, so that the traction steel wire rope is large in weight and thick in diameter.

Therefore, the two ends of the traction steel wire rope need to be pulled in the traction process, the stress is large, a large-sized winch needs to be adopted finally, and the cost is high. In a word, the conventional suspension bridge main cable strand traction system is complex in structure and high in cost.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a main cable strand traction system for solving the problems of complex structure and high cost of the conventional main cable strand traction system of the suspension bridge.

A main strand pulling system, comprising:

the two ends of the bearing cable are respectively and fixedly arranged;

the dragging device is provided with a roller which slides along the bearing cable and is used for connecting a main cable strand to be dragged;

the traction cable is connected with the puller, and the traction cable and the main cable strand are respectively positioned on two opposite sides of the puller; and

and the winch is connected with the traction cable, and pulls the puller to slide through the traction cable, so that the puller pulls the main cable strand to move.

In one embodiment, the cable support device further comprises a rotating cable saddle, and the rotating cable saddle is used for supporting the bearing cable.

In one embodiment, the cable saddle comprises a main body and transition plates arranged at two ends of the main body, wherein the main body and the transition plates are respectively provided with a walking track for the roller to walk, and the main body is provided with a containing space for the bearing cable to pass through.

In one embodiment, the main body comprises a lower pressing plate and an upper pressing plate, the lower pressing plate and the upper pressing plate are arranged at intervals to form the accommodating space, and the walking track is arranged on the surface of the upper pressing plate.

In one embodiment, the transition plate is in an arc-shaped structure, and the transition plate is in arc-shaped transition with the surface of the upper pressure plate.

In one embodiment, the traction device further comprises a traction tensioning device, and the traction tensioning device is used for tensioning the traction cable.

In one embodiment, the traction device further comprises a guide pulley, and the traction cable is arranged on the guide pulley in a sliding mode.

In one embodiment, the roller comprises:

the roller body is provided with a sliding groove in sliding fit with the bearing cable, and is also provided with a lubricating cavity communicated with the sliding groove;

the lubricating oil carrier is arranged in the lubricating cavity;

the touch block is arranged in the lubricating cavity and extends into the sliding groove; and

and the elastic piece is arranged in the lubricating cavity and is elastically arranged between the touch block and the lubricating oil carrier.

In one embodiment, the roller body is further provided with a lubricating oil adding channel, the lubricating oil adding channel is communicated with the sliding groove and the lubricating cavity, and a sealing cover used for sealing the lubricating oil adding channel is mounted on the roller body.

Above-mentioned main cable strand traction system separates into bearing rope and haulage cable construction respectively with traditional wire rope construction of drawing, can replace traditional large-scale hoist engine with small-size hoist engine, has cancelled structures such as little portal, little guide pulley and big guide pulley in traditional construction moreover, and not only system simple structure, with low costs, the atress is clear and definite moreover, draw stably.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a schematic illustration of a main strand pulling system in one embodiment;

FIG. 2 is a schematic structural view of the roller of FIG. 1;

FIG. 3 is a schematic structural view of the cable saddle of FIG. 1;

FIG. 4 is a flow chart of a main cable strand pulling method in one embodiment.

Reference numerals:

1-main cable strand, 10-bearing cable, 20-dragging device, 30-traction cable, 40-winch, 50-roller, 51-roller body, 512-sliding groove, 514-lubricating cavity, 516-lubricating oil adding channel, 52-lubricating oil carrier, 53-touch block, 54-elastic piece, 55-spacing piece, 60-cable saddle, 62-body, 622-lower pressing plate, 624-upper pressing plate, 64-transition plate, 66-fixed structure and 70-guide pulley.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be embodied in many other forms than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, a main-strand pulling system according to an embodiment includes a load-bearing rope 10, a puller 20, a pulling rope 30, and a hoist 40.

Two ends of the bearing cable 10 are respectively and fixedly arranged so as to install and fix the bearing cable 10. In one embodiment, the load bearing cable 10 may be a steel cable. Of course, the load-bearing cable 10 may also be a relatively strong fiber cable. The puller 20 is provided with a roller 50, the roller 50 being slidably arranged on the load bearing wire 10 to enable the roller 50 to slide along the load bearing wire 10. The puller 20 is used for connecting the main cable strand 1, and the main cable strand 1 can be moved by sliding the puller 20.

The pulling rope 30 is connected to the puller 20, and the pulling rope 30 and the main cable strand 1 are respectively located at two opposite sides of the puller 20, so that the pulling rope 30 can pull the puller 20 to slide, and the sliding of the puller 20 drives the main cable strand 1 to move. The hoist 40 is connected to the traction cable 30, and the hoist 40 pulls the puller 20 to slide by the traction cable 30, so that the puller 20 pulls the main cable strand 1 to move. Specifically, the traction rope 30 is directly wound on the drum of the hoist 40, and the connection between the hoist 40 and the traction rope 30 is achieved.

The main-strand pulling system connects the main strand 1 to be pulled to the puller 20, and connects the pulling rope 30 to the puller 20. Then, the hoist 40 is started, the hoist 40 pulls the drawer 20 to slide by the traction rope 30, and the drawer 20 slides along the bearing rope 10. The sliding of the puller 20 can drive the main cable strand 1 to be pulled to move until the traction of the main cable strand 1 is completed. Wherein, when the drawer 20 passes through the tower top, the drawer 20 is lifted up to be away from the tower top, and then the hoist 40 continues to pull the drawer 20 to slide.

Referring also to fig. 2, in one embodiment, in order to ensure the stable and smooth movement of the roller 50 on the load bearing cable 10, lubrication is required between the roller 50 and the load bearing cable 10. Specifically, the roller 50 includes a roller body 51, a lubricant carrier 52, a contact block 53 and an elastic member 54.

The roller body 51 is provided with a sliding groove 512 in sliding fit with the bearing cable 10, that is, the sliding groove 512 is arranged on the periphery of the roller body 51, the bearing cable 10 is positioned in the sliding groove 512, and the roller 50 can be slidably arranged on the bearing cable 10. The roller body 51 is further provided with a lubricating cavity 514, and the lubricating cavity 514 is communicated with the sliding groove 512. Specifically, in the present embodiment, the lubrication chamber 514 penetrates in the radial direction of the roller body 51, and the chute 512 and the lubrication chamber 514 communicate with each other.

The lubricant carrier 52 is disposed in the lubrication cavity 514, and the lubricant is adsorbed on the lubricant carrier 52. The lubricating oil carrier 52 is flexible and deformable, the lubricating oil can be extruded out under external extrusion, and the extruded lubricating oil can enter the sliding groove 512, so that the bearing rope 10 is lubricated. In one embodiment, the lubricant carrier 52 may be a sponge.

The touch block 53 is disposed in the lubrication cavity 514, and the touch block 53 can extend out of the lubrication cavity 514 and extend into the sliding groove 512, so that the touch block 53 can contact with the bearing cable 10 in the sliding groove 512. When the touch piece 53 contacts the load bearing cable 10, the touch piece 53 can be pressed back into the lubrication chamber 514. In one embodiment, the contact surface of the touch block 53 and the bearing cable 10 is arc-shaped, so that the roller 50 moves stably in the contact process of the touch block 53 and the bearing cable 10.

The elastic member 54 is disposed in the lubrication cavity 514, and the elastic member 54 is installed between the touch block 53 and the lubricant carrier 52. When the contact block 53 is pressed back into the lubrication cavity 514, the elastic member 54 is compressed, the elastic member 54 transmits a force to compress the lubricant carrier 52, so as to squeeze out the lubricant on the lubricant carrier 52, and the lubricant flows into the sliding groove 512. When the touch block 53 is not in contact with the bearing cable 10, the elastic member 54 is extended and restored, so that the touch block 53 is kept protruding into the sliding groove 512. In one embodiment, the resilient member 54 is a spring. Of course, the elastic member 54 may have other elastic structures capable of extending and contracting.

On the basis of the above embodiment, further, the roller 50 further includes a limiting sheet 55, the limiting sheet 55 is disposed in the lubricating cavity 514, and the limiting sheet 55 is located at one end of the lubricating oil carrier 52 far away from the elastic member 54. The limiting piece 55 can limit the lubricating oil carrier 52, and the lubricating oil carrier 52 is prevented from being extruded to fall off from the lubricating cavity 514. The stopper piece 55 may be provided in various shapes, and is preferably provided in a ring shape. And, the tip of the lubricant carrier 52 is provided with a bulge, and the size of the bulge is slightly smaller than the inner diameter of the limiting sheet 55, so that when the lubricant carrier 52 is extruded, the bulge extends out of the hole in the middle of the limiting sheet 55 to lubricate the bearing cable 10.

On the basis of the above embodiment, further, the roller main body 51 is further provided with a lubricating oil adding channel 516, and the lubricating oil adding channel 516 communicates the sliding groove 512 and the lubricating cavity 514. When the lubricant adsorbed on the lubricant carrier 52 is consumed, the lubricant can be added to the lubrication chamber 514 through the lubricant addition passage 516. Further, the roller body 51 is further provided with a sealing cover, and the sealing cover can seal the lubricating oil adding channel 516 to prevent the lubricating oil in the lubricating cavity 514 from flowing out. The sealing cover is detachably connected with the roller main body 51, so that lubricating oil can be conveniently added and the lubricating oil adding channel 516 can be conveniently plugged.

Referring to fig. 1 and 3, in one embodiment, the main cable strand pulling system further includes a plurality of cable saddles 60, wherein the cable saddles 60 are spaced apart from each other, and the cable saddles 60 are used for supporting the load-bearing cable 10. Specifically, the cable saddle 60 includes a main body 62 and two transition plates 64, and the two transition plates 64 are respectively mounted on two ends of the main body 62. The main body 62 and the transition plate 64 are provided with a running rail in the shape of a roller 50, the running rail extends along the extending direction of the bearing cable 10, and the running rail can facilitate the puller 20 to smoothly pass through the cable saddle 60.

The main body 62 is provided with a receiving space for the bearing rope 10 to pass through so as to limit the bearing rope 10. Specifically, the main body 62 includes a lower pressing plate 622 and an upper pressing plate 624, and the lower pressing plate 622 and the upper pressing plate 624 are spaced apart to form a receiving space. In one embodiment, the transition plate 64 has an arc structure, the outwardly protruding surface of which is smooth, and the surfaces of the transition plate 64 and the upper pressing plate 624 are arc-shaped to facilitate the rollers 50 of the drawer 20 to travel along the traveling rails of the transition plate 64 and the upper pressing plate 624.

In one embodiment, the main strand pulling system further comprises a pulling tensioner for tensioning the pulling cable 30. In particular, the traction tensioning device may be a tensioning wheel, enabling tensioning of the traction cable 30. The main cable strand traction system further comprises a guide pulley 70, the traction cable 30 is slidably disposed on the guide pulley 70, the guide pulley 70 is disposed under the traction cable 30, and the guide pulley 70 can support the traction cable 30 and is used for realizing the steering of the traction cable 30.

In one embodiment, the main cable strand traction system further comprises a tower saddle for supporting and fixing the bearing cable 10.

Referring to fig. 4, the present invention further provides a main cable strand and a traction method, wherein the traction method is implemented by using the main cable strand traction system. Specifically, the traction method comprises the following steps:

step S110: the main strand 1 to be pulled is connected to the puller 20, and the pulling rope 30 is connected to the puller 20.

Specifically, the main strand 1 to be pulled is connected to the puller 20, and then the pulling cable 30 is connected to the puller 20, wherein the main strand 1 to be pulled and the pulling cable 30 are respectively located at two opposite sides of the puller 20, that is, the pulling cable 30 is located at the left side of the puller 20, and the main strand 1 to be pulled is located at the right side of the puller 20.

Step S120: the winch 40 is started, the winch 40 pulls the puller 20 to slide on the bearing rope 10 through the traction rope 30, and the puller 20 drives the main rope strand 1 to move until the traction of the main rope strand 1 is completed.

Specifically, after the winch 40 is started, the winding drum of the winch 40 winds the traction rope 30 to realize the pulling of the drawer 20, and the roller 50 of the drawer 20 slides on the bearing rope 10 to realize the sliding of the drawer 20 on the bearing rope 10. In the process of the movement of the puller 20, the main cable strand 1 can be pulled to move until the traction of the main cable strand 1 is completed, so that the traction construction of the main cable strand 1 is realized.

In the present embodiment, when the puller 20 passes through the swivel saddle 60, the fixing structure 66 and the like are installed on the body 62 of the swivel saddle 60, and the fixing structure 66 protrudes out of the upper press plate 624, so that the passing of the puller 20 is inconvenient. Accordingly, the puller 20 is lifted up by a distance, the puller 20 is moved away from the surface of the body 62, and then the hoist 40 continues to pull the puller 20 to move. Finally, after the puller 20 passes over the fixed structure 66, the lower puller 20 continues to slide on the travel rail of the body 62.

According to the main cable strand traction system and the traction method thereof, the traditional construction of the traction steel wire rope is divided into the construction of the bearing cable 10 and the construction of the traction cable 30, the traditional large-scale winch 40 can be replaced by the small-scale winch 40, the structures of a small portal, a small guide wheel, a large guide wheel and the like in the traditional construction are eliminated, the system structure is simple, the cost is low, the stress is clear, and the traction is stable. In common construction, the main cable strand traction system adopting the scheme only needs to adopt a 10-ton winch, the cost is about 9 ten thousand, but the cost is about 100 ten thousand because a large winch, such as a 30-ton winch, is adopted in the traditional construction method and is about 80 ten thousand, and structures such as a small gantry, a small guide wheel and a large guide wheel need to be matched and adopted.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A main strand pulling system, comprising:

the two ends of the bearing cable are respectively and fixedly arranged;

2. A main cable strand pulling system as claimed in claim 1, further comprising a swivel saddle for supporting the load bearing cable.

3. The main cable strand pulling system as claimed in claim 2, wherein the cable saddle comprises a main body and transition plates mounted at both ends of the main body, the main body and the transition plates are provided with running rails for the rollers to run, and the main body is provided with a receiving space for the bearing cable to pass through.

4. The main cable strand pulling system according to claim 3, wherein the main body comprises a lower pressing plate and an upper pressing plate, the lower pressing plate and the upper pressing plate are arranged at intervals to form the accommodating space, and the walking rail is arranged on the surface of the upper pressing plate.

5. The main cable strand pulling system of claim 4, wherein the transition plate is in an arc-shaped configuration, and the transition plate is in an arc-shaped transition with a surface of the upper pressure plate.

6. The main cable strand pulling system of claim 1, further comprising a pull tensioning device for tensioning the pull cable.

7. A main cable strand pulling system as claimed in claim 1, further comprising a guide pulley on which the pulling cable is slidably disposed.

8. A main cable strand pulling system as set forth in claim 1, wherein said roller comprises:

the lubricating oil carrier is arranged in the lubricating cavity;

9. The main cable strand traction system of claim 8, wherein the roller body further comprises a lubricant adding passage, the lubricant adding passage is communicated with the sliding groove and the lubricant cavity, and a sealing cover for sealing the lubricant adding passage is mounted on the roller body.