CN113979325A

CN113979325A - Automatic cable clamp passing traveling system of cable-mounted crane

Info

Publication number: CN113979325A
Application number: CN202111338755.9A
Authority: CN
Inventors: 夏朝鹃; 李桐; 朱东明; 李正兵; 郑奕; 王昭华; 高峰; 陈逸; 李锋; 贾晓虎; 杨凡; 于华森; 徐振峰
Original assignee: China Railway Hi Tech Industry Corp Ltd; China Railway Jiujiang Bridge Engineering Co Ltd
Current assignee: China Railway Hi Tech Industry Corp Ltd; China Railway Jiujiang Bridge Engineering Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-01-28

Abstract

An automatic cable clamp-passing traveling system of a cable crane, wherein the cable crane comprises a main beam, two traveling end beams and a set of traction traveling system; the two ends of the main beam are hinged with the walking end beam; the two walking end beams fall on two main cables of the suspension bridge, and a plurality of cable clamps are arranged on the main cables; a plurality of travelling wheels are arranged in one travelling end beam, and the travelling wheels are used for realizing jacking and retraction through the extension and retraction of a lifting oil cylinder; the single set of traction traveling system comprises a traction winch, a traction anchoring point, a fixed pulley block, a movable pulley block and a plurality of proximity switches; the proximity switch is arranged at the bottom of the end beam, and the front and the rear of each walking wheel are respectively provided with one proximity switch. The automatic cable clamp walking device has the advantages that the position relation between the walking wheels and the cable clamp can be automatically detected, the automatic cable clamp walking of the cable crane is achieved, and the problem that the cable crane is complex in cable clamp passing operation in the past is solved.

Description

Automatic cable clamp passing traveling system of cable-mounted crane

Technical Field

The invention relates to an automatic cable clamp passing walking system of a cable crane.

Background

The cable crane is a special equipment applied to the erection of a suspension bridge beam section, spans over a main cable of the suspension bridge and lifts the beam section. The suspension bridge main cable is provided with a plurality of cable clamps, the walking wheels of the conventional cable-mounted crane need to be manually retracted, pulled to move forwards and extended when passing through the cable clamps at each time, the operation process is complex, and misoperation is easy.

Disclosure of Invention

The invention aims to provide an automatic cable clamp passing walking system of a cable crane, which can automatically detect the position relation between a walking wheel and a cable clamp, realize automatic cable clamp passing walking of the cable crane and solve the problem of complex cable clamp passing operation of the conventional cable crane.

The technical scheme adopted for achieving the purpose is that the automatic cable clamp passing walking system of the cable crane comprises a main beam, two walking end beams and a set of traction walking system;

the two ends of the main beam are hinged with the walking end beam;

the two walking end beams fall on two main cables of the suspension bridge, and a plurality of cable clamps are arranged on the main cables;

a plurality of travelling wheels are arranged in one travelling end beam, and the travelling wheels are used for realizing jacking and retraction through the extension and retraction of a lifting oil cylinder;

the single set of traction traveling system comprises a traction winch, a traction anchoring point, a fixed pulley block, a movable pulley block and a plurality of proximity switches;

the proximity switch is arranged at the bottom of the end beam, and the front and the rear of each walking wheel are respectively provided with one proximity switch.

Advantageous effects

Compared with the prior art, the invention has the following advantages. The automatic cable clamp walking device has the advantages that the position relation between the walking wheels and the cable clamp can be automatically detected, the automatic cable clamp walking of the cable crane is achieved, and the problem that the cable crane is complex in cable clamp passing operation in the past is solved.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the working principle of the present invention 1;

FIG. 3 is a schematic view of the working principle of the present invention 2;

FIG. 4 is a schematic view of the working principle of the present invention 3;

FIG. 5 is a schematic diagram 4 illustrating the operation of the present invention;

FIG. 6 is a schematic view of the working principle of the present invention 5;

FIG. 7 is a schematic diagram 6 illustrating the operation of the present invention;

FIG. 8 is a schematic view 7 illustrating the operation of the present invention;

FIG. 9 is a schematic diagram 8 illustrating the operation of the present invention;

fig. 10 is a schematic diagram 9 of the working principle of the present invention.

Detailed Description

An automatic cable clamp-passing traveling system of a cable crane, as shown in fig. 1, the cable crane comprises a main beam 1, two traveling end beams 2 and a set of traction traveling system;

two ends of the main beam 1 are hinged with the walking end beam 2;

the two walking end beams 2 fall on two main cables 3 of the suspension bridge, and a plurality of cable clamps 4 are arranged on the main cables 3;

a plurality of travelling wheels 5 are arranged in one travelling end beam 2, and the travelling wheels 5 realize jacking and retraction through the extension and retraction of a lifting oil cylinder 6;

the single set of traction walking system comprises a traction winch 7, a traction anchoring point 8, a fixed pulley block 9, a movable pulley block 10 and a plurality of proximity switches 11;

the proximity switch 11 is arranged at the bottom of the walking end beam 2, and the proximity switch 11 is respectively arranged at the front and the rear of each walking wheel 5.

Examples

Concrete structure and connection relation

The cable-mounted crane consists of a main beam, two walking end beams and a set of traction walking system.

The two ends of the main beam are hinged with the walking end beam.

The two walking end beams fall on two main cables of the suspension bridge, and a plurality of cable clamps are arranged on the main cables.

A plurality of travelling wheels are arranged in one travelling end beam, and the travelling wheels are used for jacking and retracting through the expansion of the lifting oil cylinder.

The single set of traction traveling system comprises a traction winch, a traction anchoring point, a fixed pulley block, a movable pulley block and a plurality of proximity switches.

Principle of operation

Taking the climbing and walking of the cable-mounted crane as an example:

step 1: the cable lift travels forward, as shown in figure 2,

step 2: the first proximity switch is close to the cable clamp, signaling that the cable lift is stopped, as shown in figure 3,

and step 3: the first road wheel is retracted, as shown in figure 4,

and 4, step 4: the cable crane continues to travel forward, and when the second proximity switch is moved away from the cable clamp, a signal is sent and the cable crane stops traveling, as shown in figure 5,

and 5: the first road wheel is extended, as shown in figure 6,

step 6: the cable crane travels forward and when the third proximity switch is close to the cable clamp, a signal is sent and the cable crane stops traveling, as shown in figure 7,

and 7: the second road wheel is retracted, as shown in figure 8,

and 8: the cable crane continues to travel forward, when the second proximity switch is far from the cable clamp, a signal is sent, the cable crane stops traveling, the second traveling wheel extends out, as shown in fig. 9,

and step 9: the above steps are repeated so that all the road wheels cross the cable clamp in sequence, as shown in fig. 9.

Therefore, the automatic cable clamp passing of the cable crane walking system can be realized.

Claims

1. An automatic cable clamp passing walking system of a cable crane is characterized in that the cable crane comprises a main beam (1), two walking end beams (2) and a set of traction walking system;

two ends of the main beam (1) are hinged with the walking end beam (2);

the two walking end beams (2) fall on two main cables (3) of the suspension bridge, and a plurality of cable clamps (4) are arranged on the main cables (3);

a plurality of travelling wheels (5) are arranged in one travelling end beam (2), and the travelling wheels (5) are jacked and retracted through the extension and retraction of a lifting oil cylinder (6);

the single set of traction walking system comprises a traction winch (7), a traction anchoring point (8), a fixed pulley block (9), a movable pulley block (10) and a plurality of proximity switches (11);

the proximity switch (11) is arranged at the bottom of the walking end beam (2), and the proximity switch (11) is respectively arranged at the front and the rear of each walking wheel (5).