CN109383650B

CN109383650B - Offshore crawler-type walking operation platform

Info

Publication number: CN109383650B
Application number: CN201710693306.3A
Authority: CN
Inventors: 张鸿; 杨秀礼; 翟世鸿; 华晓涛; 徐杰; 许磊磊; 夏昊; 刘修成
Original assignee: CCCC Second Harbor Engineering Co
Current assignee: CCCC Second Harbor Engineering Co; CCCC Wuhan Harbour Engineering Design and Research Institute Co Ltd
Priority date: 2017-08-14
Filing date: 2017-08-14
Publication date: 2020-11-24
Anticipated expiration: 2037-08-14
Also published as: CN109383650A

Abstract

The invention relates to the technical field of ocean engineering construction, in particular to an offshore crawler type walking operation platform. Comprises an operation platform; the operation platform lower extreme is provided with four landing legs, and four landing legs are arranged along horizontal and vertical two liang of relative intervals, its characterized in that: the lower ends of the supporting legs are provided with crawler chassis capable of walking on the seabed, and the lower ends of the supporting legs are rotatably connected to the crawler chassis through a hinge structure. The crawler type walking platform is adopted for construction, the crawler is directly attached to the seabed, the operation platform is positioned above the water surface, and only a few cylinders are influenced by waves in the water, so that the platform can still work normally under certain wave conditions, the walking precision of the crawler can be controlled, and the positioning after the platform moves each time can be accurately controlled.

Description

Offshore crawler-type walking operation platform

Technical Field

The invention relates to the technical field of ocean engineering construction, in particular to an offshore crawler type walking operation platform.

Background

The projects such as offshore wharfs, artificial islands, breakwaters and the like are mostly located in open sea areas, and are subject to interference of severe sea conditions during construction. The window conditions are very few, so that the construction efficiency of operation is low, the normal construction can be carried out within a year, the barge is easy to shake in the sea, the construction precision is poor, the construction operation windows are reduced, safety accidents are easy to happen, and the construction quality cannot be guaranteed.

Disclosure of Invention

The invention aims to solve the defects of the background technology and provide an offshore crawler type walking operation platform which can continuously walk and is not influenced by wind and waves in displacement.

The technical scheme of the invention is as follows: an offshore crawler-type walking operation platform comprises an operation platform; the operation platform lower extreme is provided with four landing legs, and four landing legs are arranged along horizontal and vertical two liang of relative intervals, its characterized in that: the lower ends of the supporting legs are provided with crawler chassis capable of walking on the seabed, and the lower ends of the supporting legs are rotatably connected to the crawler chassis through a hinge structure.

The hinge structure comprises a transverse hinge structure capable of changing the transverse inclination angle of the supporting leg and a longitudinal hinge structure capable of changing the longitudinal inclination angle of the supporting leg.

The longitudinal hinge support structure comprises a support seat fixed on the upper end surface of the crawler chassis and a first rotating shaft arranged horizontally and transversely; the lower ends of the supporting legs are provided with supporting blocks; the supporting block is provided with a first through hole for the first rotating shaft to pass through; the first rotating shaft penetrates through the first through hole, and two axial ends of the first rotating shaft are fixed on the supporting seat.

The transverse hinged structure further comprises a bottom plate fixed at the lower end of the supporting leg; the two side plates are arranged along the vertical direction and are respectively arranged at the two longitudinal sides of the supporting block; the side plate is provided with a second through hole; a second rotating shaft which is horizontally and longitudinally arranged penetrates through the second through hole; the end part of the second rotating shaft penetrates through the second through hole to be fixedly connected with the longitudinal side part of the supporting block.

The lower ends of the four support legs are further supported on a crawler chassis.

Furthermore, the lower end of each supporting leg is provided with a corresponding crawler chassis, and the lower end of each supporting leg is supported on the corresponding crawler chassis.

And further, vertical adjusting devices capable of adjusting the vertical height of the operating platform are arranged on the supporting legs.

The vertical adjusting device comprises a jacking oil cylinder which is vertically arranged; and a shell of the jacking oil cylinder is fixed on the lower end surface of the operating platform, and a jacking end of the jacking oil cylinder is fixed on the upper end of the supporting leg.

A connecting rod is arranged between two adjacent supporting legs; two ends of the connecting rod are respectively and rotatably hinged to two adjacent supporting legs.

Furthermore, at least one air bag is bound on each supporting leg.

The invention has the advantages that: 1. the whole operation platform can freely and continuously move through the crawler chassis, so that the influence of waves in water on the whole operation platform is avoided, and the operation efficiency and the safety of the whole operation platform are improved;

2. the crawler chassis is taken as power output equipment of the whole operation platform to walk on the seabed, only four support legs are actually influenced by waves, the stress area is extremely small, and the stability of the operation platform can be greatly improved;

3. by arranging the vertical adjusting device, the flatness of the whole operating platform can be adjusted when the seabed is uneven, and the problems that the operating platform surface is uneven and the operating safety and convenience are influenced are avoided;

4. the crawler chassis is supported on the seabed, and the operating platform is separated from the water surface, so that the operating platform is not influenced by waves in practice, and the structure can effectively ensure the stability and the safety of the whole operating platform;

5. through ligature gasbag on the landing leg, can reduce the pressure that track chassis bore at the seabed, when track chassis is traped in silt, can also pull out track chassis through the gasbag, strengthened whole operation platform's convenience in use.

The crawler type walking platform is adopted for construction, the crawler is directly attached to the seabed, the operation platform is positioned above the water surface, and only a few cylinders are influenced by waves in the water, so that the platform can still work normally under certain wave conditions, the walking precision of the crawler can be controlled, and the positioning after the platform moves each time can be accurately controlled.

Drawings

FIG. 1: the structure of the invention is schematically shown (the air bag is not opened, the supporting legs and the connecting rods are filled with water);

FIG. 2: the structure of the invention is schematically shown (the air bag is opened, the supporting legs and the connecting rods are not filled with water);

FIG. 3: a top view of the operating platform of the present invention;

FIG. 4: the invention is a schematic view of a connecting structure of the lower end of a supporting leg and a crawler chassis;

wherein: 1-operating platform; 2, supporting legs; 3, a crawler chassis; 4, a support seat; 5-a first rotating shaft; 6-a second rotating shaft; 7-a supporting block; 8, a bottom plate; 9-jacking oil cylinder; 10-connecting rod; 11-air bag; 12-side plate.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

Like fig. 1 ~ 4, an offshore crawler-type walking work platform, including operation platform 1, the operation platform 1 of this embodiment is the supporting platform that the truss structure built, can carry out surface of water or seabed construction on the operation platform 1. As shown in fig. 3, the operation platform 1 of the present embodiment is a square structure, four legs 2 are disposed at four corners of the operation platform 1, and the four legs 2 are arranged in a manner of being opposite to each other in a transverse direction and a longitudinal direction at intervals (the transverse direction in the present embodiment refers to the up-down direction in fig. 3, and the longitudinal direction refers to the left-right direction in fig. 3).

The walking device of the embodiment is a crawler chassis 3 installed at the lower end of the supporting leg 2, and the crawler chassis 3 of the embodiment is a 70-ton crawler chassis produced by the mechanical limited of the power of xiangyang. In practical use, four support legs 2 may correspond to one crawler chassis 3, or one support leg 2 may correspond to one crawler chassis 3, as shown in fig. 1 to 2.

In the process of advancing of crawler belt chassis 3, all crawler belt chassis 3 can't be guaranteed to be in same horizontal plane all the time, in order to maintain the level and smooth of operation platform 1, this embodiment is provided with vertical adjusting device on landing leg 2. As shown in fig. 1, the vertical adjusting device includes a vertically arranged jacking cylinder 9, a housing of the jacking cylinder 9 is fixed on the lower end surface of the operating platform 1, and a top end thereof is fixed on the upper end of the supporting leg 2.

In addition, in order to adapt to various different regional conditions of the seabed, the crawler chassis 3 and the support legs 2 of the embodiment are in hinged connection. As shown in fig. 1 and 4, the upper end surface of the crawler chassis 3 is provided with a supporting seat 4, the supporting seat 4 is provided with a first rotating shaft 5 which is horizontally and transversely arranged, two axial ends of the first rotating shaft 5 are fixed on the supporting seat 4, the first rotating shaft 5 is provided with a supporting block 7, the supporting block 7 is provided with a first through hole for the first rotating shaft 5 to pass through, and the supporting block 7 can be rotatably hinged on the first rotating shaft 5 along the axis of the first rotating shaft 5. Through the hinged connection, the supporting legs 2 can rotate within a small range to adapt to the height difference change of the sea bottom in the longitudinal direction.

The vertical both sides of supporting shoe 7 are provided with along horizontal longitudinal arrangement's

second pivot

6, 2 lower extremes of landing leg are provided with bottom plate 8, the vertical both sides of bottom plate 8 lower extreme are provided with curb plate 12 of arranging along vertical direction, the both sides of supporting shoe 7 are arranged respectively to two blocks of curb plates 12, two blocks of curb plates 12 form the U type structure of centre gripping on supporting shoe 7 with bottom plate 8, set up the second through-hole that supplies second pivot 6 to pass on curb plate 12, the second pivot 6 tip passes the second through-hole and fixes at the vertical lateral part of supporting shoe 7, second pivot 6 can be a pivot that passes supporting shoe 7 also can be two axles of fixing at supporting shoe 7 lateral part. Through the hinged connection, the supporting legs 2 can rotate in a small range to adapt to the height difference change of the seabed in the transverse direction.

During the in-service use, can set up the universal joint at 2 lower extremes of landing leg, the bulb uses with the cooperation of ball groove structure promptly, realizes

landing leg

2 and 3 articulated connections of crawler chassis.

The leg 2 is bound with an air bag 11, and the air bag 11 adjusts the acting force of the air bag 11 on the leg 2 by changing the air volume in the air bag 11. As shown in fig. 1 to 2, the airbag 11 is a storage structure, and can be directly stored on the leg 2 during assembly without occupying space, and is inflated as shown in fig. 2 during use.

In addition, a connecting rod 10 is arranged between two adjacent supporting legs 2, and two ends of the connecting rod 10 are respectively and rotatably hinged to the two adjacent supporting legs 2. The connecting rod 10 connects the four support legs 2 into an integral quadrangle, so that the problem that the stability of the four support legs 2 is reduced due to excessive movement is avoided.

The support legs 2 and the connecting rods 10 of the present embodiment are hollow structures, and when the platform is used, the amount of water entering the support legs 2 and the connecting rods 10 can be adjusted according to the requirements of the whole platform, so that a part of buoyancy is provided.

When in use, the method comprises the following steps:

1) after the operation platform is assembled, the operation platform is carried to a construction point through a barge, then the operation platform is put down to the seabed by using large-scale hoisting equipment, or the operation platform is assembled directly on a coast close to the construction point, and the crawler chassis 3 is driven to directly move to the construction point, so that the crawler chassis 3 is stably supported on the seabed;

2) after the landing leg reaches a construction point, the first rotating shaft 5 and the second rotating shaft 6 on the landing leg 2 are adjusted, so that the landing leg 2 rotates around the first rotating shaft 5 and the second rotating shaft 6, the inclination angle of the landing leg 2 is adjusted to keep the landing leg in a vertical state, and the landing leg 2 can automatically return to a normal state under the action of gravity of the operating platform 1 during actual use;

3) the jacking oil cylinders 9 at the upper ends of the driving supporting legs 2 and the jacking oil cylinders 9 on the four supporting legs 2 synchronously operate to adjust the upper end surface of the operating platform 1 to keep the operating platform in a horizontal state;

4) the offshore construction is carried out by depending on the operating platform 1, after the construction is finished, the air bags 11 on the supporting legs 2 are inflated, and the crawler chassis 3 is pulled out of the sludge by depending on the buoyancy;

5) driving the crawler chassis 2 to travel to the next construction point along the seabed, and exhausting the air bag 11 to stably support the crawler chassis 3 on the seabed;

6) repeat 2), 3), 4) and 5) until all the construction of all the construction points is completed.

Compared with the traditional offshore construction operation, the operation window condition and the shift window condition can be greatly improved, the equipment cost input is greatly reduced, and the details are shown in the following table:

the foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An offshore crawler-type walking operation platform comprises an operation platform (1); operation platform (1) lower extreme is provided with four landing legs (2), and four landing legs (2) are arranged its characterized in that along horizontal and vertical two liang of relative intervals: the lower ends of the supporting legs (2) are provided with crawler chassis (3) capable of walking on the seabed, and the lower ends of the supporting legs (2) are rotatably connected to the crawler chassis (3) through a hinge structure;

the hinge structure comprises a transverse hinge structure capable of changing the transverse inclination angle of the supporting leg (2) and a longitudinal hinge structure capable of changing the longitudinal inclination angle of the supporting leg (2);

the supporting legs (2) are provided with vertical adjusting devices capable of adjusting the vertical height of the operating platform (1);

the vertical adjusting device comprises a jacking oil cylinder (9) which is vertically arranged; the shell of the jacking oil cylinder (9) is fixed on the lower end surface of the operating platform (1), and the jacking end of the jacking oil cylinder is fixed on the upper end of the supporting leg (2);

a connecting rod (10) is arranged between two adjacent supporting legs (2); two ends of the connecting rod (10) are respectively and rotatably hinged to two adjacent supporting legs (2);

at least one air bag (11) is bound on each supporting leg (2).

2. An offshore crawler travel work platform according to claim 1, wherein: the longitudinal hinged structure comprises a supporting seat (4) fixed on the upper end surface of the crawler chassis (3) and a first rotating shaft (5) arranged horizontally and transversely; the lower ends of the supporting legs (2) are provided with supporting blocks (7); a first through hole for the first rotating shaft (5) to pass through is formed in the supporting block (7); the first rotating shaft (5) penetrates through the first through hole, and two axial ends of the first rotating shaft are fixed on the supporting seat (4).

3. An offshore crawler travel work platform according to claim 2, wherein: the transverse hinged structure comprises a bottom plate (8) fixed at the lower end of the supporting leg (2); the two longitudinal sides of the lower end of the bottom plate (8) are provided with side plates (12) which are arranged along the vertical direction, and the two side plates (12) are respectively arranged on the two longitudinal sides of the supporting block (6); the side plate (12) is provided with a second through hole; a second rotating shaft (6) which is arranged along the horizontal longitudinal direction penetrates through the second through hole; the end part of the second rotating shaft (6) penetrates through the second through hole to be fixedly connected with the longitudinal side part of the supporting block (7).

4. An offshore crawler travel work platform according to claim 1, wherein: the lower ends of the four supporting legs (2) are supported on a crawler chassis (3).

5. An offshore crawler travel work platform according to claim 1, wherein: the lower end of each supporting leg (2) is provided with a corresponding crawler chassis (2), and the lower end of each supporting leg (2) is supported on the corresponding crawler chassis (3).