A rake head structure for a cutter suction dredger with high-pressure flushing function

Abstract

The utility model relates to the harrow suction dredger technology field, concretely relates to a harrow head structure with high pressure flush function's harrow suction dredger, including connecting portion, movable portion, shell, drive rod, harrow tooth, motor, high pressure flush subassembly, shell, filter plate and angle adjusting assembly, movable portion's both ends are fixedly connected with connecting portion and shell respectively, high pressure flush subassembly is connected with the shell, filter plate is fixedly connected with the shell and is located at the port department of shell, angle adjusting assembly is connected with connecting portion and shell respectively, the shell has the mounting groove, motor is fixedly connected with the shell and is located in the mounting groove, drive rod rotationally sets up in the shell and is connected with the output end of motor, harrow tooth is fixedly connected with drive rod and is located the outside wall of drive rod, adopt above -mentioned mode, realized can filter stone, avoided stone direct contact with harrow tooth, prevented harrow tooth and broke in the work, greatly improved the service life.

Description

Technical Field

[0001] This utility model relates to the field of trailing suction hopper dredger technology, and in particular to a trailing suction hopper dredger with a high-pressure water flushing function and a rake head structure. Background Technology

[0002] Currently, trailing suction hopper dredgers operate by dredging while sailing, with a rake head installed on each side of the vessel. As the dredger sails, it moves the rake heads forward, excavating the soil underwater. The mud is then pumped into the mud tank via a mud pump, and once the tank is full, the dredger sails to the dumping area to dump the mud.

[0003] Currently, the rake head structure is the front-end equipment of the trailing suction hopper dredger, used to draw in mud or sand. Existing rake head structures generally have rake teeth and high-pressure water nozzles. The conventional approach is to combine mechanical digging with high-pressure water jetting from the rake teeth for hydraulic digging. During operation, high-pressure water jets are ejected from the nozzles, breaking up and loosening compacted sand. The cutting action of the rake teeth, with the mud and sand being suspended by the mutual cutting motion, facilitates suction into the dredging pipe, thus improving dredging efficiency.

[0004] However, in the existing methods, there are usually stones in the hard mud layer. During the operation, the rake teeth come into direct contact with the stones, which will cause the rake teeth to break and have a short service life over time. Utility Model Content

[0005] The purpose of this utility model is to provide a rake head structure for a rake suction dredger with high-pressure water flushing function, which solves the problem that existing hard mud layers usually contain stones, and during operation, the rake teeth directly contact the stones, which will eventually lead to the breakage of the rake teeth and a short service life.

[0006] To achieve the above objectives, this utility model employs a rake head structure for a dredging vessel with a high-pressure water flushing function, comprising a connecting part, a movable part, a housing, a drive rod, rake teeth, a motor, a high-pressure water flushing assembly, a filter plate, and an angle adjustment assembly. The two ends of the movable part are fixedly connected to the connecting part and the housing, respectively. The high-pressure water flushing assembly is connected to the housing. The filter plate is fixedly connected to the housing and located at the port of the housing. The angle adjustment assembly is connected to both the connecting part and the housing. The housing has a mounting groove. The motor is fixedly connected to the housing and located within the mounting groove. The drive rod is rotatably disposed within the housing and connected to the output end of the motor. The rake teeth are fixedly connected to the drive rod and located on the outer wall of the drive rod.

[0007] The angle adjustment assembly includes a mounting base, a movable base, two hydraulic cylinders, a protective cover, and a support rod. The mounting base is fixedly connected to the connecting part and is located on the outer side wall of the connecting part. The movable base is fixedly connected to the housing and is located on the outer side wall of the housing. Both ends of each hydraulic cylinder are connected to the mounting base and the movable base, respectively. The support rod is fixedly installed on the outer side wall of the connecting part. The protective cover is fixedly connected to the support rod.

[0008] The angle adjustment assembly further includes two guide rails and two movable shafts. Both guide rails are fixedly connected to the connecting part and are located on the outer side wall of the connecting part. Both movable shafts are fixedly connected to the housing and are located on the outer side wall of the housing. Each movable shaft is movably connected to the corresponding guide rail.

[0009] The angle adjustment component includes a support plate, which is fixedly connected to the connecting part and located on the outer side wall of the connecting part.

[0010] The high-pressure flushing assembly includes a high-pressure connecting water pipe, a water collection pipe, multiple branch pipes, and multiple nozzles. The multiple branch pipes are all fixedly connected to the filter plate and are all located below the filter plate. Multiple nozzles are evenly distributed below each branch pipe. The high-pressure connecting water pipe is disposed on the outer wall of the connecting part. The water collection pipe is connected to the high-pressure connecting water pipe and the multiple branch pipes respectively.

[0011] This utility model discloses a rake head structure for a dredging vessel with a high-pressure water flushing function. During use, the angle of the housing is adjusted according to the shape of the riverbed. The angle adjustment component drives the housing to rotate, and the movable part bends accordingly, ensuring the housing remains positioned on the riverbed. The housing is then controlled to move forward, providing suction to the connecting part. The motor in the mounting slot is activated, controlling the rotation of the rake teeth. Simultaneously, the high-pressure water flushing component is activated to break up and loosen compacted sand. The mud enters the housing through the filter plate, and the rake teeth further crush the mud, sucking it in from the top connecting part. This prevents stones from directly contacting and damaging the rake teeth. By employing this method, stones are filtered out, preventing direct contact with the rake teeth and thus preventing breakage during operation, significantly extending the service life. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the rake head structure of the rake suction dredger with high-pressure water flushing function according to this utility model.

[0014] Figure 2 This is a partial structural diagram of the rake head structure of the rake suction dredger with high-pressure water flushing function of this utility model.

[0015] Figure 3 This is a side view of the structure of the rake head of the rake suction dredger with high-pressure water flushing function according to this utility model.

[0016] Figure 4 This is the utility model Figure 3 A cross-sectional view of the AA line structure.

[0017] Figure 5 This is a top view of the structure of the rake head of the rake suction dredger with high-pressure water flushing function according to this utility model.

[0018] 101-Connecting part, 102-Moving part, 103-Housing shell, 104-Drive rod, 105-Rake teeth, 106-Motor, 107-Nozzle, 108-Filter plate, 109-Mounting groove, 110-Mounting seat, 111-Moving seat, 112-Hydraulic cylinder, 113-Protective cover, 114-Support rod, 115-Guide rail, 116-Moving shaft, 117-Support plate, 118-High-pressure connecting water pipe, 119-Water collection pipe, 120-Branch pipe. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] Please see Figures 1-5This utility model provides a rake head structure for a trailing suction dredger with high-pressure water flushing function: it includes a connecting part 101, a movable part 102, a housing 103, a drive rod 104, rake teeth 105, a motor 106, a high-pressure water flushing assembly, a housing 103, a filter plate 108, and an angle adjustment assembly. The two ends of the movable part 102 are fixedly connected to the connecting part 101 and the housing 103 respectively. The high-pressure water flushing assembly is connected to the housing 103, and the filter plate 108 is fixed to the housing 103. The angle adjustment assembly is connected to the connecting part 101 and the housing 103 respectively. The housing 103 has a mounting groove 109. The motor 106 is fixedly connected to the housing 103 and located in the mounting groove 109. The drive rod 104 is rotatably disposed in the housing 103 and connected to the output end of the motor 106. The rake teeth 105 are fixedly connected to the drive rod 104 and located on the outer side wall of the drive rod 104.

[0021] In this embodiment, during use, the angle of the housing 103 is adjusted according to the shape of the riverbed. The angle adjustment component drives the housing 103 to rotate, and the movable part 102 bends accordingly, keeping the housing 103 always positioned on the riverbed. Then, the housing 103 is controlled to move forward and provide suction to the connecting part 101, activating the motor 106 in the mounting groove 109. The motor 106 controls the rotation of the rake teeth 105, and simultaneously activates the high-pressure flushing component to break up and loosen the compacted sand. The soil enters the housing 103 through the filter plate 108, and the rake teeth 105 further crush the soil and suck it in from the top connecting part 101, preventing stones from directly contacting and damaging the rake teeth 105. By using the above method, stones can be filtered, avoiding direct contact between stones and the rake teeth 105, preventing the rake teeth 105 from breaking during operation, and greatly improving its service life.

[0022] Furthermore, the angle adjustment assembly includes a mounting base 110, a movable base 111, two hydraulic cylinders 112, a protective cover 113, and a support rod 114. The mounting base 110 is fixedly connected to the connecting part 101 and is located on the outer side wall of the connecting part 101. The movable base 111 is fixedly connected to the housing 103 and is located on the outer side wall of the housing 103. Both ends of each hydraulic cylinder 112 are respectively connected to the mounting base 110 and the movable base 111. The support rod 114 is fixedly provided on the outer side wall of the connecting part 101. The protective cover 113 is fixedly connected to the support rod 114.

[0023] In this embodiment, by placing the housing 103 on the riverbed surface, when the shape of the riverbed changes, two hydraulic cylinders 112 are activated. The two ends of each hydraulic cylinder 112 will change angle on the mounting base 110 and the movable base 111. At the same time, as the output end of the hydraulic cylinder 112 extends, the housing 103 will be driven to rotate, and the movable part 102 will bend accordingly. After adjustment, the hydraulic cylinders 112 are stopped. At this time, the housing 103 is in contact with the riverbed surface, and then the operation continues. Using the above method, the production efficiency is greatly improved. In addition, the protective cover 113 supports the hydraulic cylinders 112 to avoid damage from collisions.

[0024] Furthermore, the angle adjustment assembly also includes two guide rails 115 and two movable shafts 116. Both guide rails 115 are fixedly connected to the connecting part 101 and are located on the outer side wall of the connecting part 101. Both movable shafts 116 are fixedly connected to the housing 103 and are located on the outer side wall of the housing 103. Each movable shaft 116 is movably connected to the corresponding guide rail 115.

[0025] In this embodiment, by setting two guide rails 115 on the high-pressure connecting water pipe 118, when the angle of the housing 103 is adjusted, the movable shaft 116 on the outside of the housing 103 will move within the guide rails 115 respectively, which can greatly increase the stability of the housing 103 when rotating and facilitate its use.

[0026] Furthermore, the angle adjustment assembly includes a support plate 117, which is fixedly connected to the connecting portion 101 and located on the outer side wall of the connecting portion 101.

[0027] In this embodiment, by providing support plate 117, the curved movable part 102 is supported by the support plate 117, thereby improving stability.

[0028] Furthermore, the high-pressure flushing assembly includes a high-pressure connecting water pipe 118, a water collection pipe 119, multiple branch pipes 120, and multiple nozzles 107. The multiple branch pipes 120 are all fixedly connected to the filter plate 108 and are all located below the filter plate 108. Multiple nozzles 107 are evenly distributed below each branch pipe 120. The high-pressure connecting water pipe 118 is disposed on the outer wall of the connecting part 101. The water collection pipe 119 is connected to the high-pressure connecting water pipe 118 and the multiple branch pipes 120 respectively.

[0029] In this embodiment, the high-pressure water pipe 118 is fixed to the outside of the connection part 101 by a snap fastener. The high-pressure water pipe 118 supplies water to the water collection pipe 119. The high-pressure water then enters the multiple branch pipes 120 respectively, and then sprays out through the multiple nozzles 107. The high-pressure water flow is ejected from the nozzles 107, which breaks up and loosens the compacted sand.

[0030] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A rake head structure for a trailing suction dredger with high-pressure water flushing function, characterized in that, The device includes a connecting part, a movable part, a housing, a drive rod, rake teeth, a motor, a high-pressure flushing assembly, a filter plate, and an angle adjustment assembly. The two ends of the movable part are fixedly connected to the connecting part and the housing, respectively. The high-pressure flushing assembly is connected to the housing. The filter plate is fixedly connected to the housing and located at the port of the housing. The angle adjustment assembly is connected to both the connecting part and the housing. The housing has a mounting groove. The motor is fixedly connected to the housing and located within the mounting groove. The drive rod is rotatably disposed within the housing and connected to the output end of the motor. The rake teeth are fixedly connected to the drive rod and located on the outer wall of the drive rod.

2. The dragline head structure for a dredging vessel with high-pressure water flushing function as described in claim 1, characterized in that, The angle adjustment assembly includes a mounting base, a movable base, two hydraulic cylinders, a protective cover, and a support rod. The mounting base is fixedly connected to the connecting part and is located on the outer side wall of the connecting part. The movable base is fixedly connected to the housing and is located on the outer side wall of the housing. Both ends of each hydraulic cylinder are connected to the mounting base and the movable base, respectively. The support rod is fixedly installed on the outer side wall of the connecting part. The protective cover is fixedly connected to the support rod.

3. The dragline head structure for a dredging vessel with high-pressure water flushing function as described in claim 2, characterized in that, The angle adjustment assembly also includes two guide rails and two movable shafts. Both guide rails are fixedly connected to the connecting part and are located on the outer side wall of the connecting part. Both movable shafts are fixedly connected to the housing and are located on the outer side wall of the housing. Each movable shaft is movably connected to the corresponding guide rail.

4. The dragline head structure for a dredging vessel with high-pressure water flushing function as described in claim 3, characterized in that, The angle adjustment assembly includes a support plate, which is fixedly connected to the connecting part and located on the outer side wall of the connecting part.

5. The dragline head structure for a dredging vessel with high-pressure water flushing function as described in claim 4, characterized in that, The high-pressure flushing assembly includes a high-pressure connecting water pipe, a water collection pipe, multiple branch pipes, and multiple nozzles. The multiple branch pipes are all fixedly connected to the filter plate and are all located below the filter plate. Multiple nozzles are evenly distributed below each branch pipe. The high-pressure connecting water pipe is disposed on the outer wall of the connecting part. The water collection pipe is connected to the high-pressure connecting water pipe and the multiple branch pipes respectively.

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