CN221094878U - Stay cable galloping and replenishing and lifting device thereof - Google Patents

Abstract

The utility model discloses a suspension cable trolley and a replenishing and lifting device thereof, relating to the technical field of bridge lightning protection device construction, wherein the suspension cable trolley comprises a hanging basket, a traction arm and a plurality of suspension arms; the upper end of the suspension arm is suspended and connected to the bridge stay cable in a sliding manner through a pulley, and the lower end of the suspension arm is connected with the hanging basket; the traction arms are connected to each suspension arm and apply traction to the suspension arms by an external traction device. The utility model ensures construction safety and improves installation efficiency.

Description

Stay cable galloping and replenishing and lifting device thereof

Technical Field

The utility model relates to the technical field of bridge lightning protection device construction, in particular to a suspension cable galloping and a replenishing and lifting device thereof.

Background

In the construction process of the bridge lightning protection device, the lightning protection device is required to be installed on a bridge stay cable, and if a crane hanging basket is adopted for construction, the safety regulation that the crane hanging basket cannot carry people for construction for a long time is violated; secondly, the crane control method can meet the construction requirements of high-altitude operators when the crane with the boom of approximately 120 meters is controlled; the crane must be more than 100 tonnage, the dead weight is large, the cost is high, and the cost performance is not high. If the method of constructing the working platform along the stay cable is adopted, the construction safety can be met, but the cost is huge, and the construction period is long.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model aims to provide the suspension cable galloping and the replenishing and lifting device thereof, so that the construction safety is ensured and the installation efficiency is improved.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the stay cable gallows comprises a hanging basket, a traction arm and a plurality of suspension arms; the upper end of the suspension arm is suspended by a pulley and is connected to a bridge stay cable in a sliding manner, and the lower end of the suspension arm is connected with the hanging basket; the traction arms are connected to each suspension arm and apply traction to the suspension arms via an external traction device.

The further improvement is that: the suspension arm comprises a support arm and two connecting arms; the support arm is of an inverted U-shaped structure, and a plurality of mounting seats are arranged on the inner side face of the support arm; the installation seat is provided with a pulley which is matched with the bridge stay cable; the upper ends of the two connecting arms are respectively connected with the two end parts of the supporting arm, and the lower ends of the two connecting arms are respectively hinged with the hanging basket.

The further improvement is that: the pulley comprises a main pulley and two auxiliary pulleys, wherein the main pulley is arranged at the bending part of the supporting arm, and the two auxiliary pulleys are oppositely arranged at the vertical part of the supporting arm.

The further improvement is that: the mounting seat is provided with an adjusting mechanism for adjusting the position between the pulley and the bridge stay cable.

The further improvement is that: the end part of the traction arm is provided with a connecting hole for connecting a power traction rope.

The further improvement is that: the hanging basket is formed by splicing a plurality of support rods and is of a cuboid frame structure with an open top.

The further improvement is that: cushion is arranged on two sides in the hanging basket respectively.

The further improvement is that: the lifting basket is connected with the bottom of the hanging basket through a lifting rod.

The utility model also provides a replenishing and lifting device based on the stay cable trolley, which comprises a lifting pulley block arranged beside the stay cable trolley, an annular closed lifting traction rope, a replenishing object bag and a lifting power mechanism; the lifting pulley block is connected with the annular closed lifting traction rope and is hung and connected on the bridge stay cable in a sliding manner through a connecting mechanism; the lifting power mechanism is connected with the annular closed lifting traction rope and used for driving the annular closed lifting traction rope to move; the article replenishing bag is hung on the annular closed lifting traction rope.

The further improvement is that: the lifting power mechanism is a lithium battery motor component.

The utility model has the beneficial effects that:

1. According to the utility model, a constructor can arrive at a designated place to install the lightning protection device by taking the suspension cable galloping, so that the construction safety is ensured, and the installation efficiency is improved.

2. According to the utility model, the mounting seat is provided with the adjusting mechanism for adjusting the position between the pulley and the bridge stay cable, so that the position can be adjusted along with the diameter change of the stay cable, and the stability of the galloping is ensured.

3. According to the utility model, the counterweight basket is connected with the bottom of the hanging basket through the hanging rod, so that the gravity center of the gallows is reduced, and the stability of the gallows is improved.

4. In the utility model, the installation efficiency is further improved by designing the replenishment lifting device.

Drawings

FIG. 1 is a schematic diagram of the operation of a suspension cable vehicle in an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the direction A in FIG. 1;

FIG. 3 is a front view of a stay cable vehicle in accordance with an embodiment of the present utility model;

FIG. 4 is a schematic view of a suspension arm according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a basket according to an embodiment of the present utility model;

FIG. 6 is a schematic illustration of the connection of a basket to a counterweight basket in an embodiment of the utility model;

FIG. 7 is a schematic view of a replenishment lifting device according to an embodiment of the present utility model.

Reference numerals:

1-a bridge stay rope;

2-hanging basket; 21-supporting rods; 22-a cushion;

3-a suspension arm; 31-a support arm; 32-a connecting arm; 33-mounting seats; 34-main pulley; 35-auxiliary pulleys;

4-a trailing arm; 41-connecting holes;

5-a weight basket; 51-boom;

6-lifting the pulley block;

7-an annular closed lifting traction rope;

8-lifting power mechanism;

9-supplying the article bag.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.

In the description of the present utility model, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.

The technical scheme and the beneficial effects of the utility model are more clear and definite by further describing the specific embodiments of the utility model with reference to the drawings in the specification. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.

Referring to fig. 1 and 3, an embodiment of the present utility model provides a suspension cable gallows, which includes a basket 2, a traction arm 4 and a plurality of suspension arms 3; the upper end of the suspension arm 3 is suspended and connected to the bridge stay cable 1 in a sliding manner through a pulley, and the lower end of the suspension arm 3 is connected with the hanging basket 2; a traction arm 4 is connected to each suspension arm 3 and applies traction to the suspension arms 3 by external traction means.

As shown in fig. 2, the suspension arm 3 includes a support arm 31 and two link arms 32; the support arm 31 is of an inverted U-shaped structure, and a plurality of mounting seats 33 are arranged on the inner side surface of the support arm 31; the mounting seat 33 is provided with a pulley which is matched with the bridge stay cable 1; the upper ends of the two connecting arms 32 are respectively connected with the two end parts of the supporting arm 31, the lower ends of the two connecting arms 32 are respectively hinged with the hanging basket 2, the hinging structure is matched with external traction force, so that the suspension cable gallows can be applied to a range with larger change of inclination angle, namely, the suspension cable and the ground form an included angle of 45 degrees to form a horizontal straight line or a sagging arc line, and the suspension gallows can be realized by adjusting the two hanging arms. Specifically, the pulleys include a main pulley 34 and two auxiliary pulleys 35, the main pulley 34 is disposed at a bending portion of the support arm 31, and the two auxiliary pulleys 35 are disposed at a vertical portion of the support arm 31. Specifically, the mounting base 33 is provided with an adjusting mechanism for adjusting the position between the pulley and the bridge stay cable 1.

Referring to fig. 1 and 2, the end of the traction arm 4 is provided with a connection hole 41 for connecting a power traction rope, and the connection hole 41 may be provided in two, respectively located at two ends of the traction arm 4, and realize bidirectional movement of the flying vehicle by traction of the two ends.

Referring to fig. 5, the hanging basket 2 is formed by splicing a plurality of support rods 21 and has a rectangular frame structure with an open top. Specifically, two sides in the hanging basket 2 are respectively provided with a cushion 22, so that two people can sit.

As shown in fig. 6, the basket comprises a counterweight basket 5, and the counterweight basket 5 is connected with the bottom of the hanging basket 2 through a hanging rod 51.

Referring to fig. 7, the embodiment of the utility model further provides a replenishing and lifting device based on the suspension cable trolley, which comprises a lifting pulley block 6 arranged beside the suspension cable trolley, an annular closed lifting traction rope 7, a replenishing object bag 9 and a lifting power mechanism 8; the lifting pulley block 6 is connected with an annular closed lifting traction rope 7 and is hung and connected on the bridge stay cable 1 in a sliding manner through a connecting mechanism; the lifting power mechanism 8 is connected with the annular closed lifting traction rope 7 and is used for driving the annular closed lifting traction rope 7 to move; the replenishment bag 9 is hung on the annular closed lifting traction rope 7. Specifically, the lifting power mechanism 8 is a lithium battery motor assembly.

The stay cable gallows can be used for the construction of bridge lightning protection devices, and also can be used for the aspects of stay cable maintenance, flaw detection, installation of other monitoring facilities, monitoring facilities and the like.

1. Calculation of galloping traction

f＝GSinθ+f₀

Angle of theta stay cable and bridge deck (maximum value)

F traction force

Total weight of G galloping vehicle

F ₀ Friction force

1. Total weight of the galloping running point; 2 persons 80kg×2+ flying vehicle dead weight (60 kg) +necessary tools (20 kg) +necessary other articles (10 kg) about 250kg.

2. The angle theta is the maximum value of 8 stay cables and is not more than 30 degrees after calculation according to the included angle between the stay cable and the bridge deck when the angle theta is not completely straightened;

3. f0 rolling friction coefficient takes k=0.2.

F＝250kg×Sin30°+0.2×250kg×Cos30°≈168.3kg

2. Main traction wire rope calculation

The safety factor of lifting steel wire ropes for lifting personnel is generally required to be 9, the safety factor of the lifting steel wire ropes for reference power departments for lifting personnel is required to be 14 when the lifting steel wire ropes for lifting personnel are mixed and lifted, and therefore the engineering is calculated according to 14 times of the highest safety factor;

168.3kg×14＝2356.2kg

Calculating a result; the breaking force of the main traction steel wire rope should be not less than 2356.2kg

And referring to a 6 multiplied by 37 hoisting parameter table of the steel wire rope, selecting the phi 11 steel wire rope can meet the use requirement of the engineering.

3. And ensuring measures of each key point in the suspension cable galloping system.

1, The breaking force of the steel cable for fixing the upper anchor point and the lower anchor point is not less than 10T;

2, the tensile resistance of the upper pulley and the lower pulley is not less than 7 tons;

2.1, the tensile resistance of the connecting shackle is not less than 7 tons;

2.2, the upper pulley and the lower pulley are additionally provided with two rope protection, and the breaking force of the two rope protection is not less than 10T;

3, the breaking force of the traction rope of the suspension cable galloping is not less than 7 tons;

3.1, the connection part of the traction rope of the stay cable and the galloping is additionally provided with a second protection rope, and the breaking force of the second protection rope is not less than 5 tons;

3.2, a backup protection rope is additionally arranged between the suspension cable galloping and the suspension cable, and the breaking force of the backup protection rope is not less than 5 tons;

4, the safety belt of the high-altitude operator is fixedly bound on the stay rope or the installed hoop, and is adjusted along with the installation progress, wherein the two safety ropes are used for alternately carrying out the adjustment, and the adjustment is carried out sequentially according to the principle that one safety rope is firstly used for fixing and then the other safety rope is released.

The total weight of the 5 'stay cable galloping' is strictly controlled within 250KG, and when the counterweight is needed to be hung, the acting force of the counterweight is needed to act on the 'two protection ropes'.

6, The articles to be installed are supplied at any time, and the acting force of the supply system is concentrated on the lifting sling.

The speed of the 7-step stay cable galloping movement is controlled to be 0.1 m/s.

And 8, setting a full-time safety officer to monitor the whole course of the operation of the stay cable galloping, and setting a full-time command to coordinate and command the operation of the stay cable galloping.

In the description of the present utility model, a description of the terms "one embodiment," "preferred," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model, and a schematic representation of the terms described above in the present specification does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

From the above description of the structure and principles, it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, but rather that modifications and substitutions using known techniques in the art on the basis of the present utility model fall within the scope of the present utility model, which is defined by the appended claims.

Claims (10)

1. The utility model provides a suspension cable driving, includes hanging flower basket (2), its characterized in that: the device also comprises a traction arm (4) and a plurality of suspension arms (3); the upper end of the suspension arm (3) is suspended by a pulley and is connected to the bridge stay cable (1) in a sliding manner, and the lower end of the suspension arm (3) is connected with the hanging basket (2); the traction arms (4) are connected with the suspension arms (3) and apply traction to the suspension arms (3) through external traction devices.

2. The stay cable galloping of claim 1, wherein: the suspension arm (3) comprises a support arm (31) and two connecting arms (32); the support arm (31) is of an inverted U-shaped structure, and a plurality of mounting seats (33) are arranged on the inner side surface of the support arm (31); the mounting seat (33) is provided with a pulley which is matched with the bridge stay cable (1); the upper ends of the two connecting arms (32) are respectively connected with the two end parts of the supporting arm (31), and the lower ends of the two connecting arms (32) are respectively hinged with the hanging basket (2).

3. The stay cable galloping of claim 2, wherein: the pulley comprises a main pulley (34) and two auxiliary pulleys (35), wherein the main pulley (34) is arranged at the bending part of the supporting arm (31), and the two auxiliary pulleys (35) are oppositely arranged at the vertical part of the supporting arm (31).

4. The stay cable galloping of claim 2, wherein: the mounting seat (33) is provided with an adjusting mechanism for adjusting the position between the pulley and the bridge stay cable (1).

5. The stay cable galloping of claim 1, wherein: the end part of the traction arm (4) is provided with a connecting hole (41) for connecting a power traction rope.

6. The stay cable galloping of claim 1, wherein: the hanging basket (2) is formed by splicing a plurality of supporting rods (21) and is of a cuboid frame structure with an open top.

7. The stay cable galloping of claim 1, wherein: cushion (22) are respectively arranged on two sides in the hanging basket (2).

8. The stay cable galloping of claim 1, wherein: the lifting basket also comprises a counterweight basket (5), and the counterweight basket (5) is connected with the bottom of the hanging basket (2) through a lifting rod (51).

9. A replenishment lifting device based on the stay cable trolley of any one of claims 1 to 8, comprising a lifting pulley block (6) arranged beside the stay cable trolley, characterized in that: the device also comprises an annular closed lifting traction rope (7), a replenishing article bag (9) and a lifting power mechanism (8); the lifting pulley block (6) is connected with an annular closed lifting traction rope (7) and is hung and connected on the bridge stay cable (1) in a sliding manner through a connecting mechanism; the lifting power mechanism (8) is connected with the annular closed lifting traction rope (7) and is used for driving the annular closed lifting traction rope (7) to move; the article replenishing bag (9) is hung on the annular closed lifting traction rope (7).

10. The replenishment lifting device as recited in claim 9, wherein: the lifting power mechanism (8) is a lithium battery motor component.