CN112012103A - Suspension bridge main push-towing rope overhauls device - Google Patents

Abstract

The invention discloses a main cable maintenance device of a suspension bridge, which belongs to the field of bridge main cable steel structure maintenance equipment. The device includes: a traction trolley, a suspension platform, a traction working wire rope, a traction safety wire rope, a suspended basket working wire rope, and a suspended basket safety wire rope; Move; the traction working wire rope and the safety wire rope are respectively penetrated into the first hoist and the first safety lock; one end of the hanging basket working wire rope and the hanging basket safety wire rope are respectively fixed on the hanging plate of the traction trolley, and the hanging basket working wire rope and the hanging basket are safe The other ends of the wire ropes are respectively penetrated into the second hoist and the second safety lock, and are respectively received into the rope retractor. The device of the invention can realize the lifting and lowering of the main cable inspection trolley in the vertical direction, and can repair the main cable and the whole sling, and the inspection area is large. At the same time, it is equipped with a safety lock, which greatly improves the safety during maintenance.

Description

Maintenance device for main cable of suspension bridge

technical field

The invention relates to the field of bridge main cable steel structure maintenance equipment, in particular to a suspension bridge main cable maintenance device.

Background technique

The main cable is the main load-bearing part of the bridge and the life lock of the whole bridge, which cannot be replaced during the service life of the bridge. The main cables of bridges are easily corroded by the atmosphere and rain. After the bridge has been used for a certain period of time, through regular inspection of the bridge, it will be found that the bridge steel structure has different degrees of coating deterioration, corrosion, sealing failure, etc., which affects the safety factor of the bridge.

Now the common bridge main cable maintenance trolley has a relatively simple structure and is pulled by a hoist. When the wire rope breaks or slips, the entire equipment will overturn, which is not safe and reliable. Moreover, the manned platforms on both sides of the existing maintenance trolley are fixed integrally with the traction trolley, which cannot be lifted vertically, and the maintenance area is also limited.

In addition, the existing maintenance trolley generally adopts a chain sprocket drive, a rack and pinion drive, a hoisting wire rope drive, a hydraulic motor drive, and other drive modes. The chain sprocket drive and the rack and pinion drive have complex structures and fixed installation forms, which cannot meet the requirements of spanning the main cable ancillary facilities.

SUMMARY OF THE INVENTION

[technical problem]

The hoist used by the existing bridge main cable maintenance trolley has potential safety hazards, and the maintenance area under the sling is limited.

[Technical solutions]

The present invention is a main cable maintenance device of a suspension bridge, comprising: a traction trolley, a suspension platform, a traction working wire rope, a traction safety wire rope, a hanging basket working wire rope, and a suspended basket safety wire rope; the traction trolley comprises: a frame, a frame beam, Hanging plate, walking wheel, first hoist, first safety lock; the walking wheel is arranged at the bottom of the frame, and the traction trolley is seated on the handrail of the suspension bridge through the walking wheel and can move along the handrail; The two ends of the traction working wire rope and the traction safety wire rope are respectively fixed on the upper and lower anchor points of the suspension bridge; the traction working wire rope and the safety wire rope are respectively penetrated into the first hoist and the first safety lock; the said A hanging plate is fixed on the beam of the traction trolley, and a rope retractor, a second hoist, and a second safety lock are arranged on the suspended platform; On the board, the other ends of the working wire rope of the gondola and the safety wire rope of the gondola are respectively penetrated into the second hoist and the second safety lock, and are respectively received into the rope retractor.

In an embodiment of the present invention, there are two suspension platforms, which are respectively located on both sides of the main cable of the suspension bridge.

In an embodiment of the present invention, when the traction working wire rope breaks or the traction trolley slides down too fast, the first safety lock is used to lock the traction safety wire rope.

In an embodiment of the present invention, when the inclination angle of the suspension platform is too large or the working wire rope of the gondola is broken, the second safety lock locks the safety wire rope of the gondola to prevent the suspension platform from continuing to incline or fall.

In an embodiment of the present invention, the first safety lock is a centrifugal safety lock.

In an embodiment of the present invention, the second safety lock is an anti-tilt safety lock.

[Beneficial effect]

The manned platforms on both sides of the existing maintenance trolley are fixed integrally with the traction and traction trolley, and the manned trolley cannot be lifted and lowered independently. The device of the invention can realize the lifting and lowering of the main cable inspection trolley in the vertical direction, and can repair the main cable and the whole sling, and the inspection area is large.

The invention is equipped with safety locks in both the climbing direction and the vertical lifting direction. When the traction working wire rope breaks or the sliding speed of the traction trolley is too fast, the first safety lock is used to lock the traction safety wire rope. When the inclination angle of the suspension platform is too large Or when the working wire rope of the hanging basket is broken, the second safety lock locks the safety wire rope of the hanging basket to prevent the suspension platform from continuing to incline or fall, which greatly improves the safety during maintenance.

Description of drawings

FIG. 1 is an overall structural diagram of Embodiment 1. FIG.

FIG. 2 is a structural diagram of the traction trolley of Embodiment 1. FIG.

FIG. 3 is a first-view structural diagram of the suspension platform of Embodiment 1. FIG.

FIG. 4 is a second perspective structural diagram of the suspension platform in Embodiment 1. FIG.

Among them: 1. Traction trolley; 2. Suspension platform; 3. Beam; 4. Hanging plate; 5. Walking wheel; 6. The first hoist; 7. The first safety lock; 8. The rope retractor; 9. The first 2. Hoist; 10. Second safety lock; 11. Traction working wire rope; 12. Traction safety wire rope; 13. Gondola working wire rope; 14. Gondola safety wire rope.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Example 1

As shown in Figures 1-4, this embodiment provides a main cable maintenance device for a suspension bridge, including: a traction trolley 1, a suspension platform 2, a traction working wire rope 11, a traction safety wire rope 12, a gondola working wire rope 13, a gondola safety wire rope Wire rope 14; the traction trolley 1 includes: a frame, a frame beam 3, a hanger 4, a walking wheel 5, a first hoist 6, and a first safety lock 7; the walking wheel 5 is arranged at the bottom of the frame, and the traction The trolley 1 is seated on the handrail of the suspension bridge through the walking wheel 5 and can move along the handrail; the first hoist 6 provides walking power for the traction trolley 1; the two ends of the traction working wire rope 11 and the traction safety wire rope 12 are respectively It is fixed on the upper and lower anchor points of the suspension bridge; the traction working wire rope 11 and the safety wire rope 12 are respectively penetrated into the first hoist 6 and the first safety lock 7; The platform 2 is provided with a rope retractor 8, a second hoist 9, and a second safety lock 10; one end of the working wire rope 13 and the safety wire rope 14 of the hanging basket are respectively fixed on the hanging plate 4 of the traction trolley, and the working wire rope of the hanging basket 13 and the other end of the gondola safety wire rope 14 are respectively penetrated into the second hoist 9 and the second safety lock 10, and are respectively received into the rope retractor 8. There are two suspension platforms 2, which are located on both sides of the main cable of the suspension bridge respectively. The first safety lock 7 is a centrifugal safety lock; the second safety lock 10 is an anti-tilt safety lock.

principle:

When the main cable needs to be repaired, the first hoist 6 of the suspension platform 2 can lift the suspension platform 2 to the position of the main cable for inspection; when the area under the main cable needs to be repaired, the first elevator 6 of the suspension platform 2 A hoist 6 lifts the suspended platform 2 to the area below the main cable. When the traction working wire rope 11 breaks or the traction trolley 1 slides down too fast, the first safety lock 7 is used to lock the traction safety wire rope 12 . When the inclination angle of the suspension platform 2 is too large or the working wire rope 13 of the gondola is broken, the second safety lock 10 locks the safety wire rope 14 of the gondola to prevent the suspension platform 2 from continuing to incline or fall.

The protection scope of the present invention is not limited to the above-mentioned embodiments, and any modifications, equivalent replacements and improvements that can be made by professionals in the field within the spirit and principles of the present invention should be included in the protection of the present invention. within the range.

Claims (6)

1. The utility model provides a suspension bridge main push-towing rope overhauls device which characterized in that includes: the device comprises a traction trolley, a suspension platform, a traction working steel wire rope, a traction safety steel wire rope, a hanging basket working steel wire rope and a hanging basket safety steel wire rope;

the traction trolley comprises: the device comprises a frame, a frame cross beam, a hanging plate, a travelling wheel, a first hoister and a first safety lock;

the travelling wheels are arranged at the bottom of the frame, and the traction trolley is located on the handrail ropes of the suspension bridge through the travelling wheels and can move along the handrail ropes; providing walking power for the traction trolley through a first hoisting machine;

two ends of the traction working steel wire rope and the traction safety steel wire rope are respectively fixed at the upper anchor point and the lower anchor point of the suspension bridge; the traction working steel wire rope and the safety steel wire rope respectively penetrate into a first hoisting machine and a first safety lock;

a beam of the traction trolley is fixed with a hanging plate, and the hanging platform is provided with a rope collector, a second hoister and a second safety lock;

one ends of the hanging basket working steel wire rope and the hanging basket safety steel wire rope are respectively fixed on a hanging plate of the traction trolley, and the other ends of the hanging basket working steel wire rope and the hanging basket safety steel wire rope respectively penetrate into the second hoisting machine and the second safety lock and are respectively collected into the rope collecting device.

2. The apparatus of claim 1, wherein there are two of the suspension platforms, one on each side of the main cable of the suspension bridge.

3. The suspension bridge main cable maintenance device according to claim 1, wherein the first safety lock is used for locking the traction safety steel cable when the traction working steel cable is broken or the traction trolley slips down too fast.

4. The suspension bridge main cable maintenance device of claim 1, wherein when the inclination angle of the suspension platform is too large or the basket working wire rope is broken, the second safety lock locks the basket safety wire rope to prevent the suspension platform from continuously inclining or falling.

5. The suspension bridge main cable maintenance device of claim 1, wherein the first safety lock is a centrifugal safety lock.

6. The suspension bridge main cable maintenance device of claim 1, wherein the second safety lock is an anti-tipping safety lock.

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