Subsea sand pump

Abstract

The utility model relates to the field of sand pumping equipment, and concretely relates to a seabed sand pumping machine. The seabed sand pumping machine comprises: a walking assembly; a stirring structure, which is detachably installed on the walking assembly and comprises a mechanical arm installed on the walking assembly and a first stirring head installed at the end of the mechanical arm; a suction structure, which is detachably installed at the front end of the walking assembly; the suction structure comprises a shovel in hinged cooperation with the walking assembly, a mortar pump installed on the shovel and second stirring heads installed on both sides of the mortar pump; and the first stirring head is positioned in front of the mortar pump. The seabed sand pumping machine of the utility model stirs and crushes seabed silt through the first stirring head and the second stirring head, can guarantee the crushing effect of seabed silt, enhances the suction effect of the mortar pump and further improves the sand pumping efficiency of the seabed sand pumping machine.

Description

Technical Field

[0001] This utility model relates to the field of sand dredging equipment, specifically to a seabed sand dredging machine. Background Technology

[0002] Currently, most reservoirs and lakes in the world have experienced serious siltation after years of operation, which greatly reduces the effective storage capacity and endangers the safety of reservoir dams. At the same time, the harmful pollutants contained in the bottom sediment are also an endogenous source of water pollution, requiring timely dredging.

[0003] Chinese utility model patent CN215330119U discloses a digging mechanism and a auger suction conveying system. This auger suction conveying system includes a digging mechanism and a conveying mechanism. The digging mechanism includes a cutter head, a cutter motor, and a cutter holder, with a fluid channel formed inside the cutter holder. The conveying mechanism includes a suction port, a flexible hose, a rigid pipe, a mud pump assembly, and an output pipe. The suction port is fitted inside the fluid channel. When the mud pump assembly and the cutter motor operate simultaneously, the internal pressure of the fluid channel decreases due to suction, allowing the sludge generated by the cutter head to be drawn into the fluid channel through the perforated structure and discharged through the suction port, flexible hose, rigid pipe, and mud pump assembly from the output pipe. However, in actual use, it has been found that this auger suction conveying system has weak mixing capacity and cannot effectively handle relatively hard mud and sand.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] To improve or solve the technical problem that existing suction conveying systems have weak mixing capacity and cannot effectively handle relatively hard silt, this utility model provides a subsea sand dredging machine. The subsea sand dredging machine includes: a traveling assembly; a mixing structure detachably mounted on the traveling assembly, including a robotic arm mounted on the traveling assembly and a first mixing head mounted at the end of the robotic arm; and a suction structure detachably mounted at the front end of the traveling assembly. The suction structure includes a bucket hinged to the traveling assembly, a slurry pump mounted on the bucket, and second mixing heads mounted on both sides of the slurry pump; the first mixing head is positioned in front of the slurry pump.

[0006] This utility model of a subsea sand dredging machine includes a traveling assembly, a mixing structure, and a suction structure. The traveling assembly can install and drive the mixing and suction structures. The suction structure includes a bucket, a slurry pump, and a second mixing head. The bucket can accommodate the slurry pump and the second mixing head. The second mixing head can mix and break up the silt entering the bucket, preventing large pieces of silt from entering the slurry pump and causing blockages. The slurry pump can suck up the silt entering the bucket and transport it to the surface through pipelines. The mixing structure includes a robotic arm and a first mixing head. The robotic arm can move the first mixing head in front of the slurry pump to mix and break up the silt and debris in front of the pump, enhancing the mixing and breaking performance of the subsea sand dredging machine. Through the above configuration, this utility model of a subsea sand dredging machine, using the first and second mixing heads to mix and break up seabed silt, ensures effective breaking of the silt, enhances the suction effect of the slurry pump, and thus improves the dredging efficiency of the subsea sand dredging machine.

[0007] Furthermore, a lifting cylinder is installed between the bucket and the traveling assembly. With this configuration, the lifting cylinder can adjust the angle of the bucket, lowering it during operation and raising it during travel.

[0008] Furthermore, it also includes a rinsing structure, which includes a water pump and a water pipe connected to the water pump; the end of the water pipe away from the water pump faces the first stirring head. Through the above arrangement, the water pump and water pipe can clean the first stirring head, preventing long fibrous debris or sticky mud from becoming entangled on it.

[0009] Furthermore, it also includes a detachable control housing mounted on the walking assembly; the water pump is mounted on the control housing.

[0010] Furthermore, a limiting seat for retracting the water pipe is provided on the robotic arm. With this configuration, the limiting seat can retract the water pipe onto the robotic arm, thereby keeping the end of the water pipe facing the first stirring head.

[0011] Furthermore, a camera is installed on the robotic arm. This allows for easy observation of the seabed environment, thus facilitating the manual operation of the seabed dredging machine.

[0012] Furthermore, the robotic arm includes a rotating base mounted on the walking assembly, a first joint hinged to the rotating base, a second joint hinged to the first joint, and a third joint hinged to the second joint; the first stirring head is mounted on the third joint, and cameras are provided on the rotating base, the first joint, and the second joint. Through the above arrangement, with cameras on the rotating base, the first joint, and the second joint, the seabed environment can be observed more conveniently, thereby facilitating the operation of the seabed dredging machine. Attached Figure Description

[0013] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of an embodiment of the seabed sand dredging machine of this utility model; Figure 2 This is a schematic diagram of an embodiment of the suction structure in the seabed sand dredging machine of this utility model; Figure 3 This is a schematic diagram of an embodiment of the stirring structure in the seabed sand dredging machine of this utility model; Figure 4 This is a schematic diagram of an embodiment of the control box in the seabed sand dredging machine of this utility model.

[0014] List of reference numerals in the attached drawings: 1. Walking assembly; 2. Mixing structure; 21. Robotic arm; 211. Rotating seat; 212. First joint; 213. Second joint; 214. Third joint; 22. First mixing head; 23. Limiting seat; 24. Camera; 3. Suction structure; 31. Bucket; 311. Arc plate; 312. Extension; 313. Connecting plate; 314. Articulated arm; 315. Lifting cylinder; 32. Mortar pump; 33. Second mixing head; 34. Motor; 35. Reinforcing plate; 4. Control box; 5. Flushing structure; 51. Water pump; 52. Water pipe. Detailed Implementation

[0015] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0016] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] To improve or solve the technical problem that the existing articulated suction conveying system has weak mixing capacity and cannot effectively handle relatively hard silt, this utility model provides a subsea sand dredging machine. The subsea sand dredging machine includes: a traveling assembly 1; a mixing structure 2, detachably mounted on the traveling assembly 1, including a mechanical arm 21 mounted on the traveling assembly 1 and a first mixing head 22 mounted at the end of the mechanical arm 21; and a suction structure 3, detachably mounted at the front end of the traveling assembly 1. The suction structure 3 includes a bucket 31 hinged to the traveling assembly 1, a slurry pump 32 mounted on the bucket 31, and second mixing heads 33 mounted on both sides of the slurry pump 32; the first mixing head 22 is positioned in front of the slurry pump 32.

[0019] Figure 1 This is a schematic diagram of an embodiment of the seabed sand dredging machine of this utility model. (See diagram below.) Figure 1 As shown, in one or more embodiments, the seabed sand dredging machine of this utility model includes a walking assembly 1, a stirring structure 2, and a suction structure 3.

[0020] See also Figure 1 In one or more embodiments, the walking assembly 1 is a tracked walking assembly 1, which includes a track structure and a hydraulic motor. The hydraulic motor drives the track structure to walk, thereby realizing the self-propelled movement of the seabed sand dredging machine.

[0021] Figure 2 This is a schematic diagram of an embodiment of the suction structure in the seabed sand dredging machine of this utility model. (See diagram below.) Figure 1 and Figure 2As shown, in one or more embodiments, the suction structure 3 is detachably mounted on the front end of the travel assembly 1. The suction structure 3 includes a bucket 31 mounted on the travel assembly 1, a mortar pump 32 mounted on the bucket 31, and second mixing heads 33 mounted on both sides of the mortar pump 32. The bucket 31 is generally rectangular in shape and includes a bottom wall, a rear wall, a left wall, and a right wall. Arc-shaped plates 311 are provided on the rear wall, left wall, and right wall to mount the mortar pump 32 and the second mixing heads 33. Further, an extension 312 is formed on the rear wall, and a connecting plate 313 is provided on the extension 312 for mounting the second mixing heads 33. Further, a hinged arm 314 is also provided on the rear wall. One end of the hinged arm 314 is hingedly connected to the travel assembly 1 via a hinge shaft, and the other end of the hinged arm 314 is fixedly connected to the rear wall. A lifting cylinder 315 is also provided between the rear wall and the traveling assembly 1, and the lifting cylinder 315 is hinged to both the rear wall and the traveling assembly 1. When the lifting cylinder 315 is activated, it adjusts the lifting angle (inclination angle with the working surface) of the bucket 31 around the hinge axis. Furthermore, the mortar pump 32 is located in the middle of the bucket 31 in the left-right direction and is bolted to the bucket 31. The inlet of the mortar pump 32 faces the bottom wall, and the outlet faces upward through a bend. Two second mixing heads 33 are provided, arranged on both sides of the mortar pump 32. Each second mixing head 33 is connected to a motor 34, which is mounted on the mortar pump 32 via a mounting bracket (not shown in the figure). Specifically, each mounting bracket is provided with a reinforcing bracket (not shown in the figure), which is fixedly connected to the connecting plate 313 by bolts. Furthermore, a reinforcing plate 35 is provided above the mortar pump 32, and two reinforcing brackets are connected to both ends of the reinforcing plate 35. Furthermore, the second stirring head 33 includes a turntable connected to the motor 34 and stirring rods mounted on the turntable. Multiple stirring tubes are arranged along the circumference of the turntable. Alternatively, the second stirring head 33 can be configured with other suitable structures, such as a spiral stirring head.

[0022] Figure 3 This is a schematic diagram of an embodiment of the stirring structure in the seabed sand dredging machine of this utility model. Figure 1 and Figure 3As shown, in one or more embodiments, the stirring structure 2 is detachably mounted on the walking assembly 1. The stirring structure 2 includes a robotic arm 21 mounted on the walking assembly 1 and a first stirring head 22 mounted at the end of the robotic arm 21. The robotic arm 21 includes a rotating seat 211 mounted on the walking assembly 1, a first joint 212 hinged to the rotating seat 211, a second joint 213 hinged to the first joint 212, and a third joint 214 hinged to the second joint 213. The first stirring head 22 is mounted on the third joint 214. The rotating seat 211 is a rotating support driven by a motor 34. A first hydraulic cylinder is provided between the first joint 212 and the rotating seat 211, a second hydraulic cylinder is provided between the second joint 213 and the first joint 212, and a third hydraulic cylinder is provided between the third joint 214 and the second joint 213. The position of the first stirring head 22 is adjusted by the rotating seat 211, the first hydraulic cylinder, the second hydraulic cylinder, and the third hydraulic cylinder. For example, in the working state, the first stirring head 22 is positioned in front of the mortar pump 32 to stir the mud and sand in front of the mortar pump 32. Further, a limit seat 23 is provided on the robotic arm 21, and multiple limit seats 23 are provided. For example, three limit seats 23 are provided, and the three limit seats 23 are respectively installed on the first joint 212, the second joint 213, and the third joint 214. Further, a camera 24 is provided on the robotic arm 21, and the camera 24 and the limit seat 23 are respectively located on both sides of the joint. Specifically, multiple cameras 24 are provided, and the multiple cameras 24 are arranged at intervals along the length direction of the robotic arm 21. For example, five cameras 24 are provided, of which two cameras 24 are arranged on both sides of the rotating seat 211, two cameras 24 are arranged on the first joint 212, and one camera 24 is arranged on the second joint 213.

[0023] Figure 4 This is a schematic diagram of an embodiment of the control box in the seabed sand dredging machine of this utility model. Figure 1 and Figure 4As shown, in one or more embodiments, the seabed sand dredging machine of this utility model further includes a control box 4, which is mounted on the traveling assembly 1. The control box 4, the stirring structure 2, and the suction structure 3 are arranged sequentially along the length of the traveling assembly 1. The control box 4 is located at the rear end of the traveling assembly 1, the stirring structure 2 is installed in the middle of the traveling assembly 1, and the suction structure 3 is installed at the front end of the traveling assembly 1. Specifically, the control box 4 is a waterproof box and is bolted to the traveling assembly 1 to control the movement of the stirring structure 2, the suction structure 3, and the traveling assembly 1. Further, the seabed sand dredging machine of this utility model also includes a flushing structure 5 for flushing the first stirring head 22. The flushing structure 5 includes a water pump 51 and a water pipe 52 connected to the water pump 51. Specifically, the water pump 51 is mounted on the control box 4 via a bracket. One end of the water pipe 52 is connected to the water pump 51, and the other end passes through the limiting seat 23 on the robotic arm 21 toward the first stirring head 22. The water pipe 52 is constricted on the robotic arm 21 by the limiting seat 23 so that the end of the water pipe 52 always faces the first stirring head 22.

[0024] The working principle of this utility model is as follows: The walking assembly 1 moves, driving the seabed sand dredging machine to move; the robotic arm 21 positions the first mixing head 22 in front of the slurry pump 32 to mix the mud and sand in front of the slurry pump 32; the motor 34 drives the second mixing head 33 to rotate, mixing the mud and sand on both sides of the slurry pump 32; the water pump 51 draws water from the rear of the walking assembly 1 and cleans the first mixing head 22 through the water pipe 52.

[0025] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A seabed sand dredging machine, characterized in that, include: Walking assembly (1); The stirring structure (2) is detachably mounted on the walking assembly (1) and includes a robotic arm (21) mounted on the walking assembly (1) and a first stirring head (22) mounted on the end of the robotic arm (21); The suction structure (3) is detachably installed at the front end of the walking assembly (1); the suction structure (3) includes a bucket (31) that is hinged to the walking assembly (1), a mortar pump (32) installed on the bucket (31), and second mixing heads (33) installed on both sides of the mortar pump (32); the first mixing head (22) is positioned in front of the mortar pump (32).

2. The seabed sand dredging machine according to claim 1, characterized in that, A lifting cylinder (315) is provided between the bucket (31) and the traveling assembly (1).

3. The seabed sand dredging machine according to claim 1, characterized in that, It also includes a rinsing structure (5), which includes a water pump (51) and a water pipe (52) connected to the water pump (51); the end of the water pipe (52) away from the water pump (51) faces the first stirring head (22).

4. The seabed sand dredging machine according to claim 3, characterized in that, It also includes a control box (4) that is detachably mounted on the walking assembly (1); the water pump (51) is mounted on the control box (4).

5. The seabed sand dredging machine according to claim 3, characterized in that, A limiting seat (23) for retracting the water pipe (52) is provided on the robotic arm (21).

6. The seabed sand dredging machine according to claim 3, characterized in that, A camera (24) is installed on the robotic arm (21).

7. The seabed sand dredging machine according to claim 6, characterized in that, The robotic arm (21) includes a rotating seat (211) mounted on the walking assembly (1), a first joint (212) hinged to the rotating seat (211), a second joint (213) hinged to the first joint (212), and a third joint (214) hinged to the second joint (213); the first stirring head (22) is mounted on the third joint (214), and the camera (24) is provided on the rotating seat (211), the first joint (212), and the second joint (213).

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