Immersed pipe lowering system applied to sinking barge

Abstract

The utility model relates to an immersed tube lowering system applied to an immersed barge, and belongs to the technical field of immersed tunnels. The device comprises two pulley brackets respectively arranged at the bow and the stern of a ship body, two fixed pulley blocks respectively arranged on the two pulley brackets, lifting appliance pulley blocks respectively connected with the two fixed pulley blocks, two guide pulley blocks respectively arranged on the sides, close to each other, of the two fixed pulley blocks, and two immersed tube winches respectively arranged at the bow and the stern of the ship body, the steel wire rope is connected with the immersed tube through the guide pulley block, the fixed pulley block and the sling pulley block at the other end of the ship body by the immersed tube winch at any end of the ship body, so that the immersed tube is lowered. The utility model solves the problem of arrangement of the sinking winch on the deck surface of the compact space of the existing sinking barge.

Description

Technical Field

[0001] The utility model belongs to the technical field of submerged tunnels, and specifically relates to a marine single-body submerged barge, in particular to a submerged tube lowering system applied to the submerged barge. Background Art

[0002] With the increase of coastal projects at home and abroad, immersed tube tunnels have become an increasingly common cross-sea tunnel structure. The connection between immersed tube tunnels and roads on both sides of the sea is flexible, and land resources can be greatly saved. During the construction process, the immersed tube is usually suspended by the immersed tube winch on the double barge. There is a wire rope connected between the immersed tube winch and the pulley block. The wire rope transmits the tension to the suspension point of the immersed tube through the immersed tube winch, thereby completing the lowering of the immersed tube. Therefore, the layout of the immersed tube lowering system affects the service life of the wire rope and the efficiency of the immersed tube sinking operation, and is the key to the positioning and installation of the immersed tube. Utility Model Content

[0003] The utility model aims to provide a submerged tube lowering system applied to a submerged barge, so as to solve the problem of arranging the submerged winch on the deck surface of the existing submerged barge in a compact space.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model provides a submerged tube lowering system applied to a sinking barge, comprising two pulley brackets respectively arranged at the bow and stern of the hull, two fixed pulley blocks respectively arranged on the two pulley brackets, a hoisting pulley block respectively connected to the two fixed pulley blocks, two guide pulley blocks respectively arranged on the side close to each other of the two fixed pulley blocks, and two submerged tube winches respectively arranged at the bow and stern of the hull, the wire rope is connected to the submerged tube by the submerged tube winch at either end of the hull through the guide pulley block, the fixed pulley block and the hoisting pulley block at the other end of the hull, thereby realizing the lowering of the submerged tube.

[0005] Preferably, the guide pulley block and the fixed pulley block are both provided with a base.

[0006] Preferably, the immersed tube winch is a double-drum electric variable frequency immersed tube winch.

[0007] Preferably, the fixed pulley block is arranged on the centerline of the hull.

[0008] Preferably, the hoist pulley block is arranged on the center line of the hull.

[0009] Preferably, the sling pulley block is connected to the sinking body and completes the sinking work.

[0010] Preferably, the sling pulley block is a movable pulley block.

[0011] Preferably, the sling pulley block is located below the fixed pulley block.

[0012] Preferably, the swing range of the steel wire rope in the rope entry direction of the guide pulley block is less than or equal to 2 degrees.

[0013] Preferably, the immersed tube winch controls the up and down position of the immersed tube by controlling the up and down movement of the movable pulley block.

[0014] In summary, the utility model includes the following beneficial technical effects:

[0015] The utility model solves the problem of arranging the sinking winch on the deck surface of the existing sinking barge with compact space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall top view of a submerged tube lowering system on the main deck of a submerged barge provided by the utility model;

[0017] Figure 2 This is an overall side view of a submerged tube lowering system on the main deck of a submerged barge provided by the utility model;

[0018] Figure 3 It is the stern guide pulley assembly base of the submerged tube lowering system of the utility model;

[0019] Figure 4 It is a side view of the side pulley system of the submerged tube lowering system of the utility model;

[0020] Figure 5 It is a left view of the side pulley system of the submerged tube lowering system of the utility model.

[0021] Figure numerals: 1. bow immersed tube winch; 2. stern immersed tube winch; 3. guide pulley block and base; 4. wire rope; 5. fixed pulley block and base; 6. pulley bracket; 7. sling; 8. movable pulley block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model embodiment discloses a submerged tube lowering system applied to a submerged barge. The system is arranged on the barge hull. A submerged tube winch is arranged on the main deck of the barge hull; a fixed pulley block is provided with a base; a guide pulley block is provided with a base; a hoist pulley block; a pulley bracket 6; a hydraulic device, etc.

[0024] A pipe sinking winch is arranged at the bow and stern of the sinking barge. The steel wire rope 4 is connected to the sinking pipe by the sinking pipe winch through the guide pulley block, the fixed pulley block, and the hoist pulley block, so as to realize the lowering of the sinking pipe. The sinking pipe winch is a double-drum electric variable frequency sinking pipe winch. The fixed pulley block and the hoist pulley block are arranged on the center line of the hull. The hoist pulley block is connected to the sinking body and completes the sinking work. The hoist pulley block is a movable pulley block 8; the fixed pulley block is installed on the base of the pulley bracket 6, and the hoist pulley block is located at the lower position.

[0025] The load of the submerged tube can be adjusted according to the number of pulleys to adjust the tension load at the end of the rope. A centralized control room and a rest room are set on the main deck of the barge hull for operators to control the submerged tube.

[0026] The ship type provided by the utility model is a sinking barge. Two double-drum electric variable frequency submerged tube winches are arranged on the main deck of the hull, one at the bow and one at the stern. The steel wire rope 4 is guided to the stern pulley block via the bow submerged tube winch 1, and is guided to the bow pulley block via the stern submerged tube winch 2. The bow submerged tube winch 1 and the stern submerged tube winch 2 are as far away as possible, and the steel wire ropes 4 connected to each other do not interfere with each other, which greatly saves the use space of the deck.

[0027] The steel wire rope 4 led out by the double-drum pipe sinking winch is introduced into the fixed pulley block via the guide pulley block. The angle between the center line of the guide pulley and the direction in which the steel wire rope 4 enters the rope is as small as possible, so that the swing range of the steel wire rope 4 in the direction in which the steel wire rope 4 enters the rope does not exceed 2 degrees, which greatly reduces the wear of the steel wire rope 4, increases the service life of the steel wire rope 4, and improves the efficiency of the pipe sinking operation. The steel wire rope 4 is introduced into the fixed pulley block and the hoist pulley block via the guide pulley block, and the pipe sinking winch controls the up and down position of the pipe sinking by controlling the up and down movement of the movable pulley block 8.

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0029] The utility model is suitable for sinking barges. Figure 1 In the illustrated embodiment, the immersed tube lowering system is arranged on the main deck of the sinking barge.

[0030] Figure 1The main deck of the sinking barge is viewed from above, reflecting the main components of the system layout. Two double-drum electric variable frequency sinking winches, guide pulley blocks, fixed pulley blocks, and hoist pulley blocks are installed on the main deck. The steel wire rope 4 is connected to the sinking tube by the sinking tube winch through the guide pulley block, fixed pulley block, and hoist pulley block. When the sinking tube winch tightens the steel wire rope 4, the sinking tube can be moved up and down.

[0031] Figure 2 It is a side view of the submerged tube lowering system of the sunken barge, reflecting that the steel wire rope 4 is guided from the bow submerged tube winch 1 to the stern pulley block, and from the stern submerged tube winch 2 to the bow pulley block. The two submerged tube winches at the bow and stern of the main deck are arranged as far apart as possible, and the two steel wire ropes 4 do not interfere with each other.

[0032] Figure 3 It reflects the angle at which the wire rope 4 is introduced into the guide pulley. The swing range of the wire rope 4 introduced into the fixed pulley block does not exceed 2 degrees, which greatly reduces the wear of the wire rope 4, increases the service life of the wire rope 4, and improves the sinking operation efficiency.

[0033] Figure 4 and Figure 5 It reflects that the steel wire rope 4 is alternately introduced into the fixed pulley block and the sling pulley block via the guide pulley block, connected to the sinking body, thereby completing the sinking work of the immersed tube.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A submerged tube lowering system for a submerged barge, characterized in that: The invention comprises two pulley brackets (6) respectively arranged at the bow and stern of the hull, two fixed pulley blocks respectively arranged on the two pulley brackets (6), a hoisting pulley block respectively connected to the two fixed pulley blocks, two guide pulley blocks respectively arranged at the sides close to each other of the two fixed pulley blocks, and two immersed tube winches respectively arranged at the bow and stern of the hull. The steel wire rope (4) is connected to the immersed tube from the immersed tube winch at any end of the hull through the guide pulley block, the fixed pulley block and the hoisting pulley block at the other end of the hull, thereby realizing the lowering of the immersed tube.

2. The immersed tube lowering system for a submerged barge according to claim 1, characterized in that: The guide pulley block and the fixed pulley block are both provided with a base.

3. The immersed tube lowering system for a submerged barge according to claim 1, characterized in that: The immersed tube winch is a double-drum electric variable frequency immersed tube winch.

4. The immersed tube lowering system for a submerged barge according to claim 1, characterized in that: The fixed pulley block is arranged on the center line of the hull.

5. The immersed tube lowering system for a submerged barge according to claim 1, characterized in that: The hoist pulley block is arranged on the center line of the hull.

6. The immersed tube lowering system for a submerged barge according to claim 1, characterized in that: The sling pulley block is connected with the sinking body and completes the sinking work.

7. The immersed tube lowering system for a submerged barge according to claim 1, characterized in that: The sling pulley block is a movable pulley block (8).

8. The immersed tube lowering system for a submerged barge according to claim 1, characterized in that: The hoist pulley block is located below the fixed pulley block.

9. The immersed tube lowering system for a submerged barge according to claim 1, characterized in that: The swing range of the steel wire rope (4) in the rope entry direction of the guide pulley block is less than or equal to 2 degrees.

10. The immersed tube lowering system for a submerged barge according to claim 7, characterized in that: The immersed tube winch controls the up and down position of the immersed tube by controlling the up and down movement of the movable pulley block (8).

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