A fixed pulley hanging row structure of a large ship crane

Abstract

The application discloses a kind of ship large crane fixed pulley hanger row structures, it is characterized in that, including crane hanger row, first fixed pulley group, second fixed pulley group, first steel wire rope, second steel wire rope, third steel wire rope, fourth steel wire rope, fifth steel wire rope, sixth steel wire rope, seventh steel wire rope, eighth steel wire rope, the first fixed pulley group includes first fixed pulley, second fixed pulley, the second fixed pulley group includes second fixed pulley, third fixed pulley, the first steel wire rope passes through first fixed pulley, the second steel wire rope passes through second fixed pulley, the third steel wire rope passes through third fixed pulley, the fourth steel wire rope passes through fourth fixed pulley, the fifth steel wire rope, sixth steel wire rope, seventh steel wire rope, eighth steel wire rope are combined with first steel wire rope, second steel wire rope, third steel wire rope, fourth steel wire rope connection.The application can evenly distribute the length of each steel wire rope as far as possible when crane is in use, ensure that force is balanced and hoisting operation is safe.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, specifically relating to a fixed pulley hoisting structure for a large ship crane. Background Technology

[0002] Modern ships are built using modular, sectional construction. Modules and sections are manufactured in on-site and then transported to the assembly platform for final assembly or dock loading. From the design of final assembly and loading to the lifting and hoisting of sections and modules, there are many safety risks involved in lifting operations, and no step can be overlooked. The key equipment in the lifting process is the crane, and the selection of the wire rope used on the crane is crucial. In the past, crane lifting operations relied on on-site construction personnel to select the appropriate length of wire rope based on the lifting point layout and the weight of the load. However, in practice, poor wire rope length matching caused uneven stress on the pulleys of the crane's lifting platform, leading to compression and deformation of the lifting platform and posing significant safety hazards. Furthermore, wire ropes are mostly of standard length, making it quite difficult to match different required lengths each time. Summary of the Invention

[0003] To address the problems existing in the prior art, this invention provides a fixed pulley hoisting structure for a large ship crane. This invention uses a specific series connection method of steel wire ropes in the fixed pulley hoisting structure to ensure that the length of each steel wire rope is distributed as evenly as possible during crane lifting operations, thereby ensuring balanced force and safe lifting operations.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This invention provides a fixed pulley hoisting structure for a large ship crane, comprising a crane hoisting platform, a first fixed pulley block, a second fixed pulley block, a first wire rope, a second wire rope, a third wire rope, a fourth wire rope, a fifth wire rope, a sixth wire rope, a seventh wire rope, and an eighth wire rope.

[0006] The first and second fixed pulley groups are mounted on the crane's hoisting platform. The first fixed pulley group includes a first fixed pulley and a second fixed pulley, and the second fixed pulley group includes a second fixed pulley and a third fixed pulley. The first wire rope passes through the first fixed pulley, the second wire rope passes through the second fixed pulley, the third wire rope passes through the third fixed pulley, and the fourth wire rope passes through the fourth fixed pulley.

[0007] The first, second, third, and fourth steel wire ropes are of equal length. The left end of the first steel wire rope is connected to the left end of the second steel wire rope to form a first node, and the right end of the first steel wire rope is connected to the right end of the second steel wire rope to form a second node. The left end of the third steel wire rope is connected to the left end of the fourth steel wire rope to form a third node, and the right end of the third steel wire rope is connected to the right end of the fourth steel wire rope to form a fourth node.

[0008] One end of the fifth wire rope is connected to the first node, and the other end is connected to the fifth node on the hull structure. One end of the sixth wire rope is connected to the second node, and the other end is connected to the sixth node on the hull structure. One end of the seventh wire rope is connected to the third node, and the other end is connected to the seventh node on the hull structure. One end of the eighth wire rope is connected to the fourth node, and the other end is connected to the eighth node on the hull structure. The lengths of the fifth, sixth, seventh, and eighth wire ropes are equal.

[0009] As a preferred technical solution, a first shackle is provided at the first node, a second shackle is provided at the second node, a third shackle is provided at the third node, a fourth shackle is provided at the fourth node, a fifth shackle is provided at the fifth node, a sixth shackle is provided at the sixth node, a seventh shackle is provided at the seventh node, and an eighth shackle is provided at the eighth node.

[0010] As a preferred technical solution, the fifth node is located to the left of the first fixed pulley, the sixth node is located between the third and fourth fixed pulleys, the seventh node is located between the first and second fixed pulleys, and the eighth node is located to the right of the fourth fixed pulley.

[0011] As a preferred technical solution, the load-bearing capacity of the first shackle, the second shackle, the third shackle, the fourth shackle, the fifth shackle, the sixth shackle, the seventh shackle, and the eighth shackle is matched with the weight of the hull structure.

[0012] As a preferred technical solution, the length of the fifth wire rope is greater than the length of the first wire rope.

[0013] As a preferred technical solution, the distance between the fifth shackle and the seventh shackle is equal to the distance between the sixth shackle and the eighth shackle.

[0014] As a preferred technical solution, the distance between the fifth shackle and the seventh shackle is greater than the distance between the fifth shackle and the sixth shackle.

[0015] Compared with the prior art, the present invention has the following technical effects: The hoisting structure of the present invention adopts a steel wire rope series connection method. When selecting steel wire ropes, it is only necessary to ensure that the steel wire ropes are of consistent length. This can not only ensure the force balance of the steel wire ropes, but also facilitate the quick selection of steel wire ropes by on-site construction personnel, and make full use of existing steel wire ropes, avoiding the customization of non-standard length dimensions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the fixed pulley hoisting structure of the large ship crane of the present invention.

[0018] The specific explanations of the reference numerals in the attached drawings are as follows: First wire rope 1, Second wire rope 2, Third wire rope 3, Fourth wire rope 4, Fifth wire rope 5, Seventh wire rope 6, Sixth wire rope 7, Eighth wire rope 8, First fixed pulley 9, Second fixed pulley 10, Third fixed pulley 11, Fourth fixed pulley 12, First shackle 13, Third shackle 14, Second shackle 15, Fourth shackle 16, Fifth shackle 17, Seventh shackle 18, Sixth shackle 19, Eighth shackle 20. Detailed Implementation

[0019] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] This embodiment provides a fixed pulley hoisting structure for a large ship crane, including a crane hoisting platform, a first fixed pulley group, a second fixed pulley group, a first wire rope 1, a second wire rope 2, a third wire rope 3, a fourth wire rope 4, a fifth wire rope 5, a sixth wire rope 7, a seventh wire rope 6, and an eighth wire rope 8. The first and second fixed pulley groups are installed on the crane hoisting platform. The first fixed pulley group includes a first fixed pulley 9 and a second fixed pulley 10, and the second fixed pulley group includes a second fixed pulley 10 and a third fixed pulley 11. The first wire rope 1 passes through the first fixed pulley 9, the second wire rope 2 passes through the second fixed pulley 10, the third wire rope 3 passes through the third fixed pulley 11, and the fourth wire rope 4 passes through the fourth fixed pulley 12. The lengths of the first wire rope 1, second wire rope 2, third wire rope 3, and fourth wire rope 4 are equal. The left end of the first wire rope 1 is connected to the second wire rope 8. The left end of rope 2 is connected to form the first node. The right end of the first wire rope 1 is connected to the right end of the second wire rope 2 to form the second node. The left end of the third wire rope 3 is connected to the left end of the fourth wire rope 4 to form the third node. The right end of the third wire rope 3 is connected to the right end of the fourth wire rope 4 to form the fourth node. One end of the fifth wire rope 5 is connected to the first node, and the other end is connected to the fifth node on the hull structure. One end of the sixth wire rope 7 is connected to the second node, and the other end is connected to the sixth node on the hull structure. One end of the seventh wire rope 6 is connected to the third node, and the other end is connected to the seventh node on the hull structure. One end of the eighth wire rope 8 is connected to the fourth node, and the other end is connected to the eighth node on the hull structure. The lengths of the fifth wire rope 5, the sixth wire rope 7, the seventh wire rope 6, and the eighth wire rope 8 are equal, and the length of the fifth wire rope 5 is greater than the length of the first wire rope 1. The fifth node is located to the left of the first fixed pulley 9, the sixth node is located between the third fixed pulley 11 and the fourth fixed pulley 12, the seventh node is located between the first fixed pulley 9 and the second fixed pulley 10, and the eighth node is located to the right of the fourth fixed pulley 12.

[0021] The first shackle 13 is located at the first node, the second shackle 15 at the second node, the third shackle 14 at the third node, the fourth shackle 16 at the fourth node, the fifth shackle 17 at the fifth node, the sixth shackle 19 at the sixth node, the seventh shackle 18 at the seventh node, and the eighth shackle 20 at the eighth node. The load-bearing capacity of the first shackle 13, second shackle 15, third shackle 14, fourth shackle 16, fifth shackle 17, sixth shackle 19, seventh shackle 18, and eighth shackle 20 is matched to the weight of the hull structure. The distance between the fifth shackle 17 and the seventh shackle 18 is equal to the distance between the sixth shackle 19 and the eighth shackle 20, and the distance between the fifth shackle 17 and the seventh shackle 18 is greater than the distance between the fifth shackle 17 and the sixth shackle 19.

[0022] When connecting wire ropes, strictly follow the above method. When using wire ropes, ensure that the four upper wire ropes are of the same length and the four lower wire ropes are of the same length. Match the wire rope model with the shackle model to the weight of the object being lifted.

[0023] Although the above embodiments have provided a detailed description of the present invention, it should be understood by those skilled in the art that modifications or improvements can be made based on the disclosure of the present invention without departing from the spirit and scope of the invention, and such modifications and improvements are all within the spirit and scope of the present invention.

Claims

1. A fixed pulley hoisting structure for a large ship crane, characterized in that, This includes a crane hoisting frame, a first fixed pulley block, a second fixed pulley block, a first wire rope, a second wire rope, a third wire rope, a fourth wire rope, a fifth wire rope, a sixth wire rope, a seventh wire rope, and an eighth wire rope. The first and second fixed pulley groups are mounted on the crane's hoisting platform. The first fixed pulley group includes a first fixed pulley and a second fixed pulley, and the second fixed pulley group includes a third fixed pulley and a fourth fixed pulley. The first wire rope passes through the first fixed pulley, the second wire rope passes through the second fixed pulley, the third wire rope passes through the third fixed pulley, and the fourth wire rope passes through the fourth fixed pulley. The first, second, third, and fourth steel wire ropes are of equal length. The left end of the first steel wire rope is connected to the left end of the second steel wire rope to form a first node, and the right end of the first steel wire rope is connected to the right end of the second steel wire rope to form a second node. The left end of the third steel wire rope is connected to the left end of the fourth steel wire rope to form a third node, and the right end of the third steel wire rope is connected to the right end of the fourth steel wire rope to form a fourth node. One end of the fifth wire rope is connected to the first node, and the other end is connected to the fifth node on the hull structure. One end of the sixth wire rope is connected to the second node, and the other end is connected to the sixth node on the hull structure. One end of the seventh wire rope is connected to the third node, and the other end is connected to the seventh node on the hull structure. One end of the eighth wire rope is connected to the fourth node, and the other end is connected to the eighth node on the hull structure. The lengths of the fifth, sixth, seventh, and eighth wire ropes are equal. A first shackle is provided at the first node, a second shackle is provided at the second node, a third shackle is provided at the third node, a fourth shackle is provided at the fourth node, a fifth shackle is provided at the fifth node, a sixth shackle is provided at the sixth node, a seventh shackle is provided at the seventh node, and an eighth shackle is provided at the eighth node. The fifth node is located to the left of the first fixed pulley, the sixth node is located between the third and fourth fixed pulleys, the seventh node is located between the first and second fixed pulleys, and the eighth node is located to the right of the fourth fixed pulley. The load-bearing capacity of the first shackle, the second shackle, the third shackle, the fourth shackle, the fifth shackle, the sixth shackle, the seventh shackle, and the eighth shackle is matched with the weight of the hull structure; The length of the fifth wire rope is greater than the length of the first wire rope; The distance between the fifth shackle and the seventh shackle is equal to the distance between the sixth shackle and the eighth shackle; The distance between the fifth shackle and the seventh shackle is greater than the distance between the fifth shackle and the sixth shackle.

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