A digging and suction device

Abstract

The utility model relates to a kind of pull-out suction dredging device. Including pull-out support, left and right two groups of pull-out suction dredging components are installed in the front of pull-out support, each group of pull-out suction dredging component includes the opposite two housings fixedly connected with pull-out support, shaft seat is installed in the center of housing and cutterhead rotating shaft is installed in shaft seat, pull-out cutterhead is installed in the inner end of cutterhead rotating shaft and rotates to rotate, suction pipe is provided in the bottom of housing, further including the first drive assembly for driving pull-out cutterhead to rotate;Left and right two dial supports are installed on pull-out support, dial component for removing plant and root system on pull-out suction dredging component from pull-out suction dredging component and the second drive assembly for inputting power to dial component are installed on dial support.The utility model provides a kind of pull-out suction dredging device, provides the pull-out and transfer of plant and silt excavation effect, guarantee the smooth construction of pull-out dredger in rich plant area.

Description

Technical Field

[0001] This utility model belongs to the field of dredging equipment technology, and in particular relates to a dredging and suction device. Background Technology

[0002] Dredgers are construction equipment used in dredging projects. Commonly used dredging equipment includes cutter suction dredgers and trailing suction dredgers. Cutter suction dredgers use a rotating cutter head to loosen the soil on the riverbed or seabed, mix it with cement to form slurry, and then suck it into the pump body through the suction pipe and send it to the discharge area through the discharge pipe. Trailing suction dredgers use rakes placed on both sides or the stern to suck in slurry, working by dredging while moving. The application of the aforementioned dredging equipment in reservoir and wetland dredging and expansion projects has problems. Specifically, in such construction scenarios, there are usually a large number of plants such as aquatic plants, reeds and other fibrous, highly entangled plants, as well as shrubs. These plants and their roots cause the cutter head to become entangled, and also cause pipe and pump blockage problems, requiring frequent shutdowns for maintenance, making it difficult to continue construction, seriously restricting construction efficiency and affecting the progress of the project.

[0003] Developing and designing a construction vessel capable of both removing plants and dredging silt is key to solving current construction challenges. Such a vessel can be called a "dredging-type dredger." The vessel needs to be equipped with a dredging and suction system to remove and transfer plants and dredge silt. Currently, such a device does not exist, and it needs to be developed and designed specifically for this purpose. Utility Model Content

[0004] The purpose of this invention is to provide a dredging and suction device that enables the removal and transfer of vegetation and the excavation of silt, ensuring the smooth operation of dredgers in vegetation-rich areas.

[0005] The technical solution adopted by this utility model is as follows: a digging and slurry suction device, including a digging support, two sets of digging and slurry suction components installed at the front of the digging support, each set of digging and slurry suction components including two opposing covers fixedly connected to the digging support, a bearing seat installed at the center of the cover and a cutter head shaft installed inside the bearing seat, a digging cutter head that rotates is installed at the inner end of the cutter head shaft, a slurry suction pipe is provided at the bottom of the cover, and a first drive component for driving the digging cutter head to rotate; two dial supports are installed on the digging support, and a dial component for pulling the plants and roots on the digging and slurry suction components and a second drive component for inputting power to the dial components are installed on the dial supports.

[0006] Preferably, the excavator cutterhead includes a cone located at the center and a toothed ring located on the outer periphery. The cone is fixedly connected to the inner end of the cutterhead rotating shaft. An intermediate ring is provided between the cone and the toothed ring. The cutterhead ...

[0007] Preferably, the dial assembly includes a dial shaft mounted on a dial bracket, a turntable mounted on the dial shaft, a connecting ring on the outer side of the turntable, and a plurality of radially extending levers arranged at equal angular intervals in the circumferential direction. The inner ends of the levers are fixedly connected to the turntable, and the middle parts are fixedly connected to the connecting ring.

[0008] Preferably, the first drive component is a geared motor or a hydraulic motor, and the output shaft of the geared motor or hydraulic motor is connected to the outer end of the cutter head shaft.

[0009] Preferably, the second drive component is a geared motor or a hydraulic motor, and the output shaft of the geared motor or hydraulic motor is connected to the end of the dial shaft.

[0010] The advantages and positive effects of this utility model are:

[0011] This invention provides a dredging and suction device. By incorporating a dredging and suction assembly consisting of a casing and a dredging cutterhead, it can remove vegetation while simultaneously excavating silt. The silt mixed with surrounding water forms a slurry that can be pumped into the casing by an onboard mud pump. A deflector assembly allows the removed vegetation and roots to be transferred from the dredging and suction assembly, for example, to a chain conveyor for further processing, such as crushing. This dredging and suction device is applicable to dredging suction vessels, ensuring smooth operation of dredgers in vegetation-rich areas. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention, from a top view.

[0013] Figure 2 This is a three-dimensional structural schematic diagram of the present invention, from a lower perspective;

[0014] Figure 3 yes Figure 1 and Figure 2 A three-dimensional structural diagram of the cutterhead in a medium-lift excavator.

[0015] In the picture:

[0016] 1. Excavation support; 2. Dial plate support; 3. Suction pipe; 4. Cover; 5. Excavation cutter head; 5-1. Cone; 5-2. Intermediate ring; 5-3. Toothed ring; 5-4. Long connecting plate; 5-5. Short connecting plate; 6. Dial plate assembly; 6-1. Turntable; 6-2. Dial plate shaft; 6-3. Connecting ring; 6-4. Dial rod; 7. Shaft seat; 8. Cutter head shaft. Detailed Implementation

[0017] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0018] Please see Figure 1 , Figure 2 and Figure 3 The present invention relates to a dredging and suction device, comprising a dredging support 1, with two sets of dredging and suction components installed at the front of the dredging support 1. The dredging and suction components have two functions: one is to remove vegetation at the construction site, and the other is to excavate and break up the silt. The excavated silt mixes with the surrounding water to form mud. The construction vessel is equipped with a shipboard mud pump. Under the suction action of the shipboard mud pump, the mud is transported ashore through the dredging and suction components and the shipboard mud pump along the mud pipeline.

[0019] Each dredging and suction assembly includes two opposing housings 4 fixedly connected to the dredging support 1. A bearing 7 is installed at the center of each housing 4, and a cutterhead shaft 8 is installed inside the bearing 7. A dredging cutterhead 5, which rotates, is installed at the inner end of the cutterhead shaft 8. A suction pipe 3 is provided at the bottom of each housing 4, and a first drive assembly is also included to drive the dredging cutterhead 5 to rotate. The suction pipe 3 is connected to a shipborne mud pump through a pipeline. The shipborne mud pump creates a negative pressure inside the housing 4, and the silt mixes with the surrounding water to form mud. The mud passes through the dredging cutterhead 5 and enters the housing 4.

[0020] As shown in the figure, two sets of housings 4 and their excavation cutterheads 5 are arranged opposite each other. The two excavation cutterheads 5 are close together at the root and far apart at the front, forming a funnel shape. During the operation of the excavation and suction assembly, plants enter between the front parts of the two excavation cutterheads 5. As the two excavation cutterheads 5 rotate synchronously, the plants are gradually drawn in and clamped between the roots of the two excavation cutterheads 5. When the two excavation cutterheads 5 rotate further, the plants are subjected to an upward pulling force. Finally, the plants and their roots are pulled upward and the roots are separated from the silt. The excavation cutterheads 5 also have the effect of excavating and agitating the silt. At the same time, as mentioned earlier, the suction provided by the ship-mounted mud pump creates a negative pressure inside the housing 4. The silt and surrounding water are pumped out and pass through the excavation cutterheads 5 into the housing 4. Finally, the mud is transported ashore through pipelines.

[0021] The above explains the meaning of "extraction and dredging": the extraction and dredging suction assembly "extracts" plants and their root systems, and at the same time, it "digs" silt. Therefore, the extraction and dredging suction assembly is the core device of the extraction and dredging dredger. This extraction and dredging suction device is used to remove and transfer plants during the extraction and dredging process, and at the same time, it provides the function of excavating silt to form mud, thus assisting in the efficient operation of the extraction and dredging construction.

[0022] In this embodiment, the excavator cutterhead 5 includes a central cone 5-1 and a toothed ring 5-3 with teeth on its outer periphery. The cone 5-1 is fixedly connected to the inner end of the cutterhead shaft 8. An intermediate ring 5-2 is provided between the cone 5-1 and the toothed ring 5-3. It also includes multiple radially arranged long connecting plates 5-4, which combine the cone 5-1, the intermediate ring 5-2, and the toothed ring 5-3 into a whole. Furthermore, it includes multiple short connecting plates 5-5, each located between the intermediate ring 5-2 and the toothed ring 5-3, for structural reinforcement. Figure 3 As shown, a perforation is formed between the cone 5-1 and the intermediate ring 5-2, and between the toothed ring 5-3 and the intermediate ring 5-2, to allow mud to pass through.

[0023] In this embodiment, the first driving component is a geared motor or a hydraulic motor. The output shaft of the geared motor or hydraulic motor is connected to the outer end of the cutter head shaft 8. Under the driving action of the first driving component, the two cutting cutter heads 5 of each set of cutting and suction mud assembly rotate synchronously.

[0024] Two dial supports 2 are installed on the digging support 1. The dial supports 2 are equipped with a dial assembly 6 for removing plants and roots from the digging and suction assembly, and a second drive assembly for inputting power to the dial assembly 6.

[0025] In this embodiment, the dial assembly 6 includes a dial shaft 6-2 mounted on a dial bracket 2, a turntable 6-1 mounted on the dial shaft 6-2, a connecting ring 6-3 and a plurality of radially extending levers 6-4 arranged at equal circumferential angles on the outer side of the turntable 6-1. The inner end of the lever 6-4 is fixedly connected to the turntable 6-1 and the middle part is fixedly connected to the connecting ring 6-2. During rotation, the lever 6-4 that moves to the bottom passes between the two excavation cutter discs 5, pulling the plants and roots between the excavation cutter discs 5 out and transferring them to a rear facility such as a chain conveyor.

[0026] In this embodiment, the second drive component is a geared motor or a hydraulic motor. The output shaft of the geared motor or hydraulic motor is connected to the end of the dial shaft 6-2. Under the driving action of the second drive component, the dial component 6 and the mud extraction and suction component operate synchronously.

[0027] Operating method:

[0028] Two sets of dredging and suction assemblies and a dial assembly 6 are aligned with the construction position. The construction vessel moves forward, and the dredging and suction assemblies remove the vegetation at the construction position, separating the roots from the silt. The vegetation and roots are then moved to a chain conveyor at the rear by the dial assembly 6. The chain conveyor moves the vegetation and roots to a shredder, and the shredded vegetation and roots are thrown downwards from the bottom outlet of the shredder and fall onto a belt conveyor. The belt conveyor transfers the received shredded material to a barge moored to the side. At the same time, the dredging and suction assemblies excavate the silt, and the silt mixes with the surrounding water to form mud, which is then pumped out by the onboard mud pump of the construction vessel. Finally, the mud is transported ashore through mud pipelines.

Claims

1. A mud-sucking and dredging device, characterized in that: The device includes a digging support (1), with two sets of digging and suction assemblies installed at the front of the digging support (1). Each set of digging and suction assemblies includes two opposing housings (4) fixedly connected to the digging support (1). A bearing seat (7) is installed at the center of the housing (4), and a cutter head shaft (8) is installed inside the bearing seat (7). A digging cutter head (5) that rotates is installed at the inner end of the cutter head shaft (8). A suction pipe (3) is provided at the bottom of the housing (4). The device also includes a first drive assembly that drives the digging cutter head (5) to rotate. Two dial supports (2) are installed on the digging support (1). A dial assembly (6) for removing plants and roots from the digging and suction assemblies and a second drive assembly that inputs power to the dial assembly (6) are installed on the dial supports (2).

2. The mud-sucking and dredging device as described in claim 1, characterized in that: The excavation cutterhead (5) includes a cone (5-1) located at the center and a toothed ring (5-3) with teeth on the outer periphery located on the outer side. The cone (5-1) is fixedly connected to the inner end of the cutterhead shaft (8). An intermediate ring (5-2) is provided between the cone (5-1) and the toothed ring (5-3). It also includes multiple radially arranged long connecting plates (5-4). The long connecting plates (5-4) combine the cone (5-1), the intermediate ring (5-2) and the toothed ring (5-3) into a whole. It also includes multiple short connecting plates (5-5). Each short connecting plate (5-5) is located between the intermediate ring (5-2) and the toothed ring (5-3).

3. The mud-sucking and dredging device as described in claim 2, characterized in that: The dial assembly (6) includes a dial shaft (6-2) mounted on a dial bracket (2), a turntable (6-1) mounted on the dial shaft (6-2), a connecting ring (6-3) on the outside of the turntable (6-1), and a plurality of radially extending levers (6-4) arranged at equal circumferential angles. The inner end of the lever (6-4) is fixedly connected to the turntable (6-1), and the middle part is fixedly connected to the connecting ring (6-3).

4. The mud-sucking and dredging device as described in claim 3, characterized in that: The first drive component is a geared motor or a hydraulic motor, and the output shaft of the geared motor or hydraulic motor is connected to the outer end of the cutter head shaft (8).

5. The mud-sucking and dredging device as described in claim 4, characterized in that: The second drive component is a geared motor or a hydraulic motor, and the output shaft of the geared motor or hydraulic motor is connected to the end of the dial shaft (6-2).

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