阅读说明：本技术 钢丝绳防扭导向装置 (Steel wire rope anti-twisting guide device ) 是由 石锦坤 檀晓光 张亚雷 林晓杰 方霖 马庆林 陈晓东 于 2020-04-30 设计创作，主要内容包括：本发明公开了一种钢丝绳防扭导向装置,包括安装在船舶甲板上的支撑座、设置在支撑座上并悬空在水面上方的导向单元；导向单元包括垂直设置的导向支撑架、设置在导向支撑架内的至少一个第一滚轮；导向支撑架内形成有一供吊机的钢丝绳穿过的导向通道,导向通道位于第一滚轮一侧并贯穿导向支撑架的上下两端；导向支撑架的一侧边开放并与导向通道相连通,形成用于钢丝绳进出导向通道的开口。本发明的钢丝绳防扭导向装置,适用于大型结构物深水安装作业情形,有效解决现有船舶资源吊机双股钢丝绳模式安装深水大型结构物时的打扭问题；增强现有船舶资源海上施工能力,提升在深水大型结构物安装领域的竞争力；结构简单、预制成本低、施工效率高。(The invention discloses a steel wire rope anti-twisting guide device which comprises a support seat arranged on a ship deck and a guide unit arranged on the support seat and suspended above the water surface; the guide unit comprises a guide support frame vertically arranged and at least one first roller arranged in the guide support frame; a guide channel for a steel wire rope of the crane to pass through is formed in the guide support frame, and the guide channel is positioned on one side of the first roller and penetrates through the upper end and the lower end of the guide support frame; one side of the guide support frame is opened and communicated with the guide channel to form an opening for the steel wire rope to enter and exit the guide channel. The steel wire rope anti-twisting guide device is suitable for the deepwater installation operation situation of large-sized structures, and effectively solves the twisting problem when the deepwater large-sized structures are installed in a double-strand steel wire rope mode of the existing ship resource crane; the offshore construction capacity of the existing ship resources is enhanced, and the competitiveness in the field of deepwater large-scale structure installation is improved; simple structure, low prefabrication cost and high construction efficiency.)

1. A steel wire rope anti-twisting guide device is characterized by comprising a support seat arranged on a ship deck and a guide unit arranged on the support seat and suspended above the water surface;

the guide unit comprises a guide support frame vertically arranged and at least one first roller arranged in the guide support frame; a guide channel for a steel wire rope of the crane to pass through is formed in the guide support frame, and the guide channel is positioned on one side of the first roller and penetrates through the upper end and the lower end of the guide support frame; one side of the guide support frame is open and communicated with the guide channel to form an opening for the steel wire rope to enter and exit the guide channel.

2. The wire rope twisting prevention guide device according to claim 1, wherein the guide unit comprises a plurality of first rollers arranged at intervals from top to bottom.

3. The steel wire rope twisting prevention guide device according to claim 2, wherein the first rollers are connected at their centers in an arc shape having a radius of curvature not less than the minimum radius of curvature of the steel wire rope.

4. The steel wire rope twisting-prevention guiding device according to claim 1, wherein the guiding unit further comprises at least one safety pin shaft transversely penetrating through the open side of the guiding support frame to limit the steel wire rope in the guiding channel.

5. The steel wire rope anti-twisting guide device according to claim 1, wherein the guide support frame comprises two baffles which are opposite at intervals, and at least one connecting plate connected between one sides of the two baffles;

the first roller is arranged between the two baffles and close to the side edge of the baffle where the connecting plate is located; the guide channel is positioned on one side of the first roller, which faces away from the connecting plate, and an opening of the guide channel is formed between the opposite sides of the two baffles.

6. A steel cable anti-twist guide device according to claim 5, wherein said connecting plate is U-shaped and extends horizontally across one side of each of said two said baffles, opposite ends of said connecting plate extending over the surface of each of said two said baffles.

7. The steel wire rope anti-twisting guide device according to claim 1, wherein the support base comprises a base fixed on a deck of a ship, and a support bridge arranged on the base and having one end extending out of the ship; the guide unit is arranged at one end of the support bridge extending out of the ship.

8. The steel rope anti-twist guide device according to claim 7, wherein the base and the support bridge are each formed by welding steel structures.

9. The cable tie anti-twist guide according to claim 7, wherein said support base further comprises a safety fence disposed around the periphery of said support bridge.

10. A steel cable anti-twist guide device according to any one of claims 1 to 9, wherein said guide unit further comprises at least one second roller disposed within said guide support frame, said second roller being spaced apart from and opposed to said first roller on a side of said first roller facing said opening.

Technical Field

The invention relates to the technical field of ocean engineering, in particular to a steel wire rope anti-twisting guide device.

Background

Deep water oil and gas development is becoming the leading edge of major growth points and technological innovations in the world oil industry, and the exploitable scale of marine oil and gas fields is greatly increased along with the increase of water depth. Over half of offshore oil and gas resources are distributed in water areas 300 meters deep in the world. The development of deep-water ocean oil gas can not leave various underwater structures, and the produced oil, gas and water multiphase or single-phase fluid is collected and is connected back to nearby underwater, water surface or land supported facilities, so that the development of offshore oil gas fields is realized.

The deepwater underwater structure is an important component in an underwater production system, and comprises a manifold, an anti-sinking plate, a control system module and the like according to different functions. With the increase of operating water depth and the development of the offshore oil industry, the deep water underwater structures are larger and larger in size, complex in internal structure, highly dense in equipment, pipelines and the like, and higher requirements and challenges are provided for offshore installation. In the installation of an underwater structure, a ship crane is generally used to hoist the underwater structure from a deck, and then the underwater structure is put into water and put down until the underwater structure is put down on a seabed. When the weight of the underwater structure exceeds a certain weight (such as one hundred tons or more), the ship hoisting mode needs to be changed into a double-steel-wire rope mode, and when the hook head reaches a certain depth of water, the hook head can be subjected to transverse torsional force, so that the double steel wires are twisted to form 8-shaped or twist-shaped intersection, the steel wire ropes are damaged, and when the lowering stroke of the main hook is longer, the twisting phenomenon is more obvious. The twisting of the steel wire rope can not only aggravate abrasion consumption, but also increase the safety risk of hoisting operation. In order to ensure that large underwater structures can be safely and smoothly installed in deep water, an auxiliary tool needs to be designed to solve the problem of twisting of a double-strand steel wire rope of a crane.

Disclosure of Invention

The invention aims to provide a steel wire rope twisting prevention guide device for preventing a double-strand steel wire rope of a crane from twisting.

The technical scheme adopted by the invention for solving the technical problems is as follows: the steel wire rope anti-twisting guide device comprises a support seat arranged on a ship deck and a guide unit arranged on the support seat and suspended above the water surface;

the guide unit comprises a guide support frame vertically arranged and at least one first roller arranged in the guide support frame; a guide channel for a steel wire rope of the crane to pass through is formed in the guide support frame, and the guide channel is positioned on one side of the first roller and penetrates through the upper end and the lower end of the guide support frame; one side of the guide support frame is open and communicated with the guide channel to form an opening for the steel wire rope to enter and exit the guide channel.

Preferably, the guide unit includes a plurality of first rollers arranged at intervals from top to bottom.

Preferably, the central connecting line of the first rollers is arc-shaped, and the radian radius of the central connecting line is larger than or equal to the minimum bending radius of the steel wire rope.

Preferably, the guide unit further comprises at least one safety pin shaft transversely penetrating through the open side of the guide support frame, and the steel wire rope is limited in the guide channel.

Preferably, the guide support frame comprises two baffle plates which are opposite at intervals, and at least one connecting plate connected between one sides of the two baffle plates;

the first roller is arranged between the two baffles and close to the side edge of the baffle where the connecting plate is located; the guide channel is positioned on one side of the first roller, which faces away from the connecting plate, and an opening of the guide channel is formed between the opposite sides of the two baffles.

Preferably, the connecting plate is U-shaped and horizontally bridged between one side of the two baffles, and two opposite ends of the connecting plate respectively extend to the surfaces of the two baffles.

Preferably, the supporting seat comprises a base fixed on a deck of the ship and a supporting bridge arranged on the base and with one end extending out of the ship; the guide unit is arranged at one end of the support bridge extending out of the ship.

Preferably, the base and the support bridge are both formed by welding steel structures.

Preferably, the supporting base further comprises a safety fence arranged around the periphery of the supporting bridge.

Preferably, the guide unit further comprises at least one second roller disposed in the guide support frame, the second roller being spaced and opposite to the first roller and located on a side of the first roller facing the opening.

The steel wire rope anti-twisting guide device is suitable for the deepwater installation operation situation of large-sized structures, and effectively solves the twisting problem when the deepwater large-sized structures are installed in a double-strand steel wire rope mode of the existing ship resource crane; the offshore construction capacity of the existing ship resources is enhanced, and the competitiveness in the field of deepwater large-scale structure installation is improved; simple structure, low prefabrication cost and high construction efficiency.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic perspective view of a steel wire rope anti-twisting guide device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a guide unit in the wire rope twisting prevention guide apparatus according to an embodiment of the present invention;

FIG. 3 is a top view of the guide unit shown in FIG. 2;

FIG. 4 is a longitudinal sectional view of the guide unit shown in FIG. 2;

fig. 5 is a longitudinal sectional view of a guide unit in a wire rope twisting prevention guide apparatus according to another embodiment of the present invention.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in fig. 1, a wire rope twisting prevention guide device according to an embodiment of the present invention includes a support base 10 and a guide unit 20 disposed on the support base 10. The supporting seat 10 is used for being installed on a deck of a ship, the guide unit 20 is suspended above the water surface, and a steel wire rope for a crane penetrates through the supporting seat and plays a role in guiding the steel wire rope, so that the steel wire rope and another steel wire rope are prevented from being twisted together to influence the lowering of an underwater structure.

Wherein, the supporting seat 10 is used as the supporting bottom of the whole device and plays the role of installation and positioning.

Alternatively, the support base 10 may comprise a base 11 and a support bridge 12. The base 11 can be fixed on a deck of a ship by welding, locking and the like; the supporting bridge 12 is arranged on the base 11, and one end of the supporting bridge extends out of the ship. The guide unit 20 is provided on an end of the support bridge 12 extending outside the vessel so as to be suspended above the water surface. The support bridge 12 may serve as a work platform on which a worker guides the wire rope into the guide unit 20 or separates the wire rope from the guide unit 20 on the support bridge 12.

For improved operational safety, the support base 10 further comprises a safety fence 13 which is arranged around the periphery of the support bridge 12.

The base 11 and the support bridge 12 are each formed by welding steel structures. In order to facilitate the staff to support the bridge 12 up and down, a ladder rack 14 is erected on the base 11.

As shown in fig. 1 to 3, the guide unit 20 includes a guide support frame 21, and at least one first roller 22 disposed in the guide support frame 21. The guiding support frame 21 is vertically arranged on the support base 10, and a guiding channel 200 is formed in the guiding support frame 21 for the steel wire rope to pass through. The guide channel 200 is located at one side of the first roller 22 and penetrates through the upper end and the lower end of the guide support frame 21, the upper end of the steel wire rope is connected to the crane, and the lower end of the steel wire rope penetrates through the guide channel 200 to enter underwater.

One side of the guide support frame 21 is open and is communicated with the guide passage 200, forming an opening 201 for the wire rope to enter and exit the guide passage 200. When the steel wire rope passes through the guide channel 200, the steel wire rope mainly enters from the opening 201 on the side surface of the guide support frame 21 and leaves from the guide channel 200 in the same way.

In order to prevent the steel wire rope from jumping out of the guide channel 200, the guide unit 20 further includes at least one safety pin 23, and the safety pin 23 transversely penetrates through the open side of the guide support frame 21 to limit the steel wire rope in the guide channel 200. The safety pin 23 may be one, or may be spaced from the bottom to the bottom along the opening 201. The safety pin 23 is detachable on the guide support frame 21, so that the opening 201 is conveniently opened to take and place the steel wire rope.

Referring to fig. 2-4, in the present embodiment, the guiding support frame 21 includes two baffles 211 spaced apart from each other and at least one connecting plate 212 connected between one sides of the two baffles 211.

The first roller 22 is arranged between the two baffles 211 and close to the side of the baffle 211 where the connecting plate 212 is located; the guide channel 200 is located on the side of the first roller 22 facing away from the connecting plate 212, and the opening 201 of the guide channel 200 is formed between the opposite sides of the two flaps 211.

Further, in the present embodiment, the guiding unit 20 includes a plurality of first rollers 22 arranged from top to bottom at intervals, and the structural strength of the first rollers can bear the force generated when the twisted pair of steel cables of the crane is solved. Two ends of each first roller 22 are respectively arranged on the two baffles 211 in a penetrating manner through the rotating shaft, the first rollers 22 can rotate relative to the baffles 211, and when the steel wire rope is pulled, the first rollers 22 can rotate along with the steel wire rope, so that the friction force between the first rollers 22 and the steel wire rope is reduced.

As shown in fig. 4, the center connecting lines of the first rollers 22 are arc-shaped, and the radian radius of the arc-shaped connecting lines is larger than or equal to the minimum bending radius of the steel wire rope, so that the steel wire rope is prevented from being damaged due to excessive bending when passing through the guide channel 200. The radius of the circular arc formed by connecting the plurality of first rollers 22, and the distance and number of the first rollers 22 are determined according to the weight of the structure, the depth of water in which the structure is installed, and the minimum bending radius of the wire rope.

The connecting plate 212 mainly connects the two baffles 211 to form an integrated guiding support frame 21. The connection plate 212 may be a vertically disposed plate body that fits between and closes one side of the two baffles 211. Alternatively, as shown in fig. 2 and 3, the connecting plate 212 has a U-shape and is disposed perpendicularly opposite to the baffle 211. The U-shaped connecting plate 212 horizontally spans between one side of the two baffles 211, and opposite ends of the connecting plate 212 respectively extend to the surfaces of the two baffles 211 and are fixedly connected to the baffles 211.

As shown in fig. 5, referring to fig. 2 and 3, the steel cable twisting prevention guide apparatus according to another embodiment of the present invention, compared to the above-mentioned embodiment shown in fig. 1 to 4, further includes at least one second roller 24 disposed in the guide support frame 21, wherein the second roller 24 is spaced apart from the first roller 22 and located on a side of the first roller 22 facing the opening 201.

The second roller 24 is disposed such that the guide passage 200 is located between the second roller 24 and the first roller 22, and both sides of the wire rope may contact the first roller 22 and the second roller 24, respectively, when passing therethrough.

To the setting of second gyro wheel 24, two baffles 211 of direction support frame 51 are for dismantling the connection, conveniently when getting to put wire rope, open guide channel 200 through dismantling a baffle 211, adorn baffle 211 back again after accomplishing.

The steel wire rope anti-twisting guide device is suitable for a crane to install a large deepwater structure in a double-strand steel wire rope mode, and is mainly used for penetrating one steel wire rope in the double-strand steel wire rope, increasing the distance between the two steel wire ropes and avoiding twisting together. When the underwater structure is in operation, one strand of the steel wire rope penetrates through the guide channel 200 and then enters water, the other strand of the steel wire rope enters water on the outer side of the guide unit 20, and the underwater structure is lowered into the water through the two strands of the steel wire rope until the underwater structure reaches the seabed.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.