Automatic arresting device for mud door oil cylinder of large drag suction dredger and using method of automatic arresting device

Abstract

The invention relates to the technical field of trailing suction dredger machinery, in particular to an automatic arresting device for a mud door oil cylinder of a large trailing suction dredger and a using method. The automatic arresting device comprises a telescopic oil cylinder mounting platform, a telescopic oil cylinder is transversely arranged on the telescopic oil cylinder mounting platform, and one end of the telescopic oil cylinder and the telescopic oil cylinder mounting platform are connected with a telescopic oil cylinder fixing end; and a mud door oil cylinder wedge block is arranged at the other end of the telescopic oil cylinder. The high-pressure oil pump of the mud door oil cylinder hydraulic system can be kept in a high-pressure state in the sailing process, energy consumption is reduced, the structure device is simple and compact, deck space is saved, and installation and operation are convenient.

Description

Technical Field

[0001] The invention relates to the technical field of trailing suction dredger machinery, and in particular to an automatic stopping device for a mud door cylinder of a large trailing suction dredger and a use method thereof. Background Art

[0002] When a trailing suction hopper dredger is sailing with mud, it is necessary to keep the mud door in the mud tank tightly closed to ensure that the mud in the mud tank will not leak out and affect the mud carrying capacity. Usually, a wedge is set in the mud door cylinder in a trailing suction hopper dredger. The wedge is a mechanical locking device of the cylinder, which is usually used to prevent the locking device of the cylinder itself from failing. When the trailing suction hopper dredger is sailing with mud, the wedge is inserted into the mud door cylinder to prevent the high-pressure oil pump of the hydraulic system from maintaining a high-pressure state, thereby saving energy consumption; when the dredger needs to unload mud, the wedge is removed, the mud door cylinder moves downward, and the mud door is opened.

[0003] A trailing suction hopper dredger is generally equipped with 5 to 18 mud gates depending on the size of the ship. During long-distance operations, the mud gates need to be opened and closed continuously, so the mud gate cylinder wedges also need to be constantly moved and reset. Among the stop devices used in the currently known trailing suction hopper dredgers, the stop wedges used in general medium-sized dredgers weigh about 160 kilograms each, and the stop wedges of large dredgers will be heavier. At present, the movement and reset of the mud gate cylinder wedges are all achieved manually, which will be more time-consuming and labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic stopping device for the mud gate cylinder of a large-scale trailing suction dredger and a method for using the same, so as to solve the problem that the high-pressure oil pump of the hydraulic system of the mud gate cylinder maintains a high-pressure state during navigation, and also solves the problem that manual locking of the mud gate cylinder is required.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides an automatic stopping device for the mud gate cylinder of a large-scale trailing suction dredger, comprising a telescopic cylinder mounting platform, a telescopic cylinder is horizontally arranged on the telescopic cylinder mounting platform, one end of the telescopic cylinder is connected to the telescopic cylinder mounting platform with a telescopic cylinder fixed end, and the other end of the telescopic cylinder is provided with a mud gate cylinder wedge block.

[0006] Preferably, the mud gate cylinder wedge is used to lock the mud gate cylinder during navigation of the dredger.

[0007] Preferably, a telescopic cylinder base is provided on the telescopic cylinder mounting platform, and the telescopic cylinder is arranged on the telescopic cylinder base.

[0008] Preferably, the telescopic cylinder base is provided in plurality and is arranged in sequence along the direction of the telescopic cylinder.

[0009] Preferably, a telescopic cylinder mounting platform support frame is provided at the bottom of the telescopic cylinder mounting platform.

[0010] Preferably, a wedge placement platform is provided below the mud gate cylinder wedge.

[0011] Preferably, a mud gate cylinder wedge guide device is provided on the wedge placement platform, and the mud gate cylinder wedge is arranged on the mud gate cylinder wedge guide device.

[0012] Preferably, the telescopic cylinder is provided with a stroke sensor.

[0013] The technical solution of the present invention provides a method for using an automatic stopping device for a mud door cylinder of a large-scale trailing suction dredger, comprising the following steps:

[0014] After receiving the command, the telescopic oil cylinder pushes out the mud gate oil cylinder wedge block, so that the mud gate oil cylinder wedge block moves along the mud gate oil cylinder wedge block guide device;

[0015] When the travel sensor of the telescopic oil cylinder detects that the telescopic oil cylinder has extended to a specified distance, the travel sensor will send a signal to stop the telescopic oil cylinder from extending and put it in a locked state; at this time, the mud door oil cylinder can release pressure, and the mud door oil cylinder is locked by the mud door oil cylinder wedge to keep the mud door closed;

[0016] When the trailing suction dredger needs to unload mud, a retraction command is issued to the telescopic cylinder, and at this time, the mud gate cylinder needs to enter a high-pressure holding state first;

[0017] After receiving the retraction instruction, the telescopic cylinder retracts the mud door cylinder wedge block. After the mud door cylinder wedge block is fully retracted, the mud door is opened and closed by the mud door cylinder.

[0018] Preferably, instructions can be issued to the telescopic cylinder via a remote control console.

[0019] In summary, the present invention includes the following beneficial technical effects:

[0020] The present invention provides an automatic stop device for a mud gate cylinder of a large-scale trailing suction dredger and a method for using the same, which is used to keep the mud gate of the trailing suction dredger closed during navigation and transportation, effectively solving the problem of maintaining a high-pressure oil pump in a high-pressure state in a hydraulic system of the mud gate cylinder during navigation, and also solving the problem of manually locking the mud gate cylinder. The method and the structural device can mechanically lock the mud gate cylinder during operation, saving energy consumption, and the structural device is simple and compact, saving deck space, and easy to install and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a main schematic diagram of an automatic stopping device for a mud door cylinder of a large-scale trailing suction dredger and a method of using the same;

[0022] Figure 2 It is a top view schematic diagram of an automatic stopping device for a mud door cylinder of a large-scale trailing suction dredger and a method of using the same;

[0023] Figure 3 It is a schematic diagram of the main view of the working state of an automatic stopping device for a mud door cylinder of a large-scale trailing suction dredger and a method for using the same;

[0024] Figure 4 The present invention is a top view schematic diagram of the working state of an automatic stopping device for a mud door cylinder of a large-scale trailing suction dredger and a method for using the same.

[0025] Figure numerals: 1. telescopic cylinder; 2. telescopic cylinder base; 3. mud door cylinder wedge; 4. telescopic cylinder fixed end; 5. telescopic cylinder mounting platform; 6. wedge placement platform; 7. telescopic cylinder mounting platform support frame; 8. mud door cylinder wedge guide device. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The embodiment of the present invention discloses an automatic stopping device for a mud gate cylinder of a large-scale trailing suction dredger and a method for using the same. As shown in the figure, the automatic stopping device mainly comprises: a telescopic cylinder 1, a telescopic cylinder base 2, a mud gate cylinder wedge 3, a telescopic cylinder fixed end 4, a telescopic cylinder mounting platform 5, a wedge placement platform 6, and a telescopic cylinder mounting platform support frame 7.

[0028] Telescopic cylinder 1: used for moving and resetting the mud door cylinder wedge 3, and equipped with a stroke sensor.

[0029] Telescopic cylinder base 2: used to support the telescopic cylinder 1.

[0030] Mud gate cylinder wedge 3: used to lock the mud gate cylinder during the dredging process.

[0031] Telescopic cylinder fixed end 4: used to fix one end of the telescopic cylinder 1.

[0032] Telescopic cylinder mounting platform 5: used for mounting the telescopic cylinder 1, the telescopic cylinder base 2, and the telescopic cylinder fixed end 4.

[0033] Wedge block placement platform 6: used for placing mud gate cylinder wedge block 3.

[0034] Telescopic cylinder mounting platform support frame 7: used for supporting the telescopic cylinder mounting platform 5.

[0035] Mud gate cylinder wedge guide device 8: used for guiding the mud gate cylinder wedge 3.

[0036] The operation process of the present invention is as follows:

[0037] When the trailing suction dredger needs to keep the mud door closed and enter the navigation state, an extension command is issued to the telescopic cylinder 1 through the remote control console.

[0038] After receiving the command, the telescopic cylinder 1 pushes out the mud door cylinder wedge 3, so that the mud door cylinder wedge 3 moves along the mud door cylinder wedge guide device 8. A stroke control sensor is installed on the telescopic cylinder 1. When it is detected that the telescopic cylinder 1 is extended to a specified distance, the stroke control sensor will send a signal to stop the telescopic cylinder 1 from extending and put it in a locked state. At this time, the mud door cylinder can be depressurized, and the mud door cylinder wedge 3 is used to lock the mud door cylinder to keep the mud door closed.

[0039] When the trailing suction dredger needs to unload mud, a retraction command is issued to the telescopic cylinder 1 through the remote control console. At this time, the mud gate cylinder needs to enter the high-pressure holding state first.

[0040] After receiving the retraction instruction, the telescopic cylinder 1 retracts the mud door cylinder wedge 3. After the mud door cylinder wedge 3 is fully retracted, the mud door is opened and closed by the mud door cylinder.

[0041] 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to 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. An automatic stopping device for the mud gate cylinder of a large-scale trailing suction dredger, characterized in that: The invention comprises a telescopic cylinder mounting platform (5), a telescopic cylinder (1) being transversely arranged on the telescopic cylinder mounting platform (5), one end of the telescopic cylinder (1) being connected to the telescopic cylinder mounting platform (5) by a telescopic cylinder fixed end (4), and the other end of the telescopic cylinder (1) being provided with a mud door cylinder wedge block (3).

2. The automatic stopping device for the mud gate cylinder of a large-scale trailing suction dredger according to claim 1 is characterized in that: The mud gate oil cylinder wedge (3) is used to lock the mud gate oil cylinder during the navigation of the dredger.

3. The automatic stopping device for the mud gate cylinder of a large-scale trailing suction dredger according to claim 2 is characterized in that: A telescopic cylinder base (2) is provided on the telescopic cylinder mounting platform (5), and the telescopic cylinder (1) is arranged on the telescopic cylinder base (2).

4. The automatic stopping device for the mud gate cylinder of a large-scale trailing suction dredger according to claim 3 is characterized in that: The telescopic oil cylinder base (2) is provided in plurality and is arranged in sequence along the direction of the telescopic oil cylinder (1).

5. The automatic stopping device for the mud door cylinder of a large-scale trailing suction dredger according to claim 2 is characterized in that: A telescopic oil cylinder mounting platform support frame (7) is provided at the bottom of the telescopic oil cylinder mounting platform (5).

6. The automatic stopping device for the mud gate cylinder of a large-scale trailing suction dredger according to claim 2 is characterized in that: A wedge placement platform (6) is provided below the mud gate oil cylinder wedge (3).

7. The automatic stopping device for the mud gate cylinder of a large-scale trailing suction dredger according to claim 6 is characterized in that: The wedge placement platform (6) is provided with a mud gate oil cylinder wedge guide device (8), and the mud gate oil cylinder wedge (3) is arranged on the mud gate oil cylinder wedge guide device (8).

8. The automatic stopping device for the mud gate cylinder of a large-scale trailing suction dredger according to claim 7 is characterized in that: The telescopic oil cylinder (1) is provided with a stroke sensor.

9. The method for using the automatic stopping device for the mud gate cylinder of a large-scale trailing suction dredger according to claim 8 is characterized in that: The following steps are involved: After receiving the command, the telescopic cylinder (1) pushes the mud gate cylinder wedge (3) outward, so that the mud gate cylinder wedge (3) moves along the mud gate cylinder wedge guide device (8); When the travel sensor of the telescopic oil cylinder (1) detects that the telescopic oil cylinder (1) has extended to a specified distance, the travel sensor will send a signal to stop the telescopic oil cylinder (1) from extending and put it in a locked state; at this time, the mud door oil cylinder can release pressure, and the mud door oil cylinder wedge block (3) will lock the mud door oil cylinder to keep the mud door closed; When the trailing suction dredger needs to unload mud, a retraction command is issued to the telescopic cylinder (1), and at this time, the mud gate cylinder needs to enter a high-pressure holding state first; After receiving the retraction instruction, the telescopic oil cylinder (1) retracts the mud door oil cylinder wedge block (3), and after the mud door oil cylinder wedge block (3) is completely retracted, the mud door is opened and closed by the mud door oil cylinder.

10. The method for using the automatic stopping device for the mud door cylinder of a large-scale trailing suction dredger according to claim 9 is characterized in that: Instructions can be issued to the telescopic cylinder (1) via a remote control console.

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