Dredging reamer head and overwater dredging device

Abstract

The utility model discloses a dredging reamer head which comprises a base and a plurality of spiral cutter heads, and a suction opening is formed in the middle of the base. The spiral tool bits are arranged at the bottom of the base and extend in the direction away from the base, suction spaces are formed between the spiral tool bits and communicate with the suction opening, and the spiral tool bits rotate to convey sludge into the suction spaces. The utility model further discloses a water dredging device. By means of the arrangement of the structure, during use, the multiple spiral tool bits rotate, soil and sludge at the water bottom are fully mixed with water to form slurry, meanwhile, the multiple spiral tool bits rotate at the same time, centrifugal force influences one another, the sludge is continuously guided into the suction space, the concentration of the slurry in the suction space is kept high, and the sludge can be effectively sucked. And the mud is sucked out through the suction port, so that the desilting capability and the desilting efficiency of the product can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater dredging, in particular to a dredging cutter head and an underwater dredging device. Background Art

[0002] Underwater dredging can effectively reduce the sediment deposited in water, lower the height of river beds and lake bottoms, improve the navigation capacity of rivers and lakes, reduce the threat of floods, protect the ecological environment, and prevent the accumulated sediment from damaging the underwater ecological environment, which has obvious significance in protecting people's livelihood and the natural environment.

[0003] At present, most of the existing underwater dredging work uses equipment such as excavators, dredging boats, cutter suction dredgers, and sludge solidification devices. Among them, the cutter suction dredger integrates a variety of advanced construction technologies and has the characteristics of accurate excavation, small agitation, and low pollution. When in use, the rotating cutter loosens the soil at the bottom of the water to form a slurry mixed with water and mud, which is sucked into the pump body through the suction pipe and sent to the sludge discharge area through the discharge pipe. However, the existing dredging cutter head of the cutter suction dredger has certain defects. Most of them use a single cutter. When the cutter rotates at a high speed, the solid part will be thrown out due to centrifugal force, resulting in a decrease in the slurry concentration near the cutter, and the efficiency of sucking the slurry is greatly reduced. Reducing the rotation speed of the cutter is likely to cause the soil at the bottom of the water not to be fully mixed with water to form a slurry, and the pump body cannot suck the slurry, and the dredging efficiency of the product is also reduced.

[0004] Therefore, the utility model provides a dredging cutter head and an underwater dredging device, which can effectively solve the above problems. The structure is simple, which can effectively mix the soil at the bottom of the water with water to form a slurry, and at the same time ensure the slurry concentration near the suction port, and improve the efficiency of sucking the slurry of the product. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a dredging cutter head with a simple structure, which can effectively mix the soil at the bottom of the water with water to form a slurry, and at the same time ensure the slurry concentration near the suction port, and improve the efficiency of sucking the slurry of the product.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] The utility model discloses a dredging cutter head, including:

[0008] A base, with a suction port provided in the middle of the base;

[0009] A plurality of spiral cutter heads, which are arranged at the bottom of the base and extend in a direction away from the base. A suction space is formed between the spiral cutter heads, and the suction space communicates with the suction port. Each spiral cutter head rotates to transfer the silt into the suction space.

[0010] As an improvement of the present utility model, the spiral cutter head includes two inlet spiral cutter heads and two outlet spiral cutter heads. The inlet spiral cutter heads are arranged on the front side of the base and are used to introduce silt into the suction space, and the outlet spiral cutter heads are arranged on the rear side of the base and are used to introduce the silt in the suction space to the vicinity of the suction port.

[0011] As an improvement of the present utility model, the two inlet spiral cutter heads rotate in opposite directions, and the two outlet spiral cutter heads rotate in opposite directions.

[0012] As an improvement of the present utility model, the rotation speed of the inlet spiral cutter head is greater than the rotation speed of the outlet spiral cutter head.

[0013] As an improvement of the present utility model, it further includes two baffles. The two baffles are arranged on both sides of the base and face the inlet spiral cutter head and the outlet spiral cutter head.

[0014] As an improvement of the present utility model, the spiral cutter head further includes at least two blocking spiral cutter heads. The blocking spiral cutter heads are arranged on the base and near the gap between the inlet spiral cutter head and the outlet spiral cutter head.

[0015] As an improvement of the present utility model, it further includes a suction pump. The inlet of the suction pump is connected to the base and communicates with the suction port.

[0016] As an improvement of the present utility model, it further includes a discharge pipe. One end of the discharge pipe communicates with the outlet of the suction pump, and the other end of the discharge pipe is used to communicate with a silt conveying pipeline.

[0017] As an improvement of the present utility model, it further includes a housing. The housing is connected to the base and sleeved on the suction pump. The housing is provided with an opening, and the discharge pipe passes through the opening.

[0018] The present utility model discloses a water dredging device, including:

[0019] A hull for floating on the water surface;

[0020] A driving device arranged on the upper surface of the hull;

[0021] A working arm, the connecting end of the working arm is connected to the driving device and moves under the action of the driving device;

[0022] The dredging cutter head as described above, and the dredging cutter head is connected to the free end of the working arm.

[0023] The beneficial effects of the present utility model are as follows: Through the arrangement of the above structure, during use, multiple spiral cutter heads rotate, fully stirring and mixing the soil and silt at the bottom of the water to form mud. At the same time, multiple spiral cutter heads rotate simultaneously, and the centrifugal forces affect each other, continuously guiding the silt into the suction space, so that the mud in the suction space maintains a high concentration. The mud is sucked out through the suction port, which can effectively improve the dredging capacity and efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. The drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0026] Figure 1 is a schematic diagram of the overall structure of the first embodiment of the present utility model from one angle;

[0027] Figure 2 is a schematic diagram of the overall structure of the first embodiment of the present utility model from another angle;

[0028] Figure 3 is an exploded structure schematic diagram of the first embodiment of the present utility model from one angle;

[0029] Figure 4 is a rotation schematic diagram of the spiral cutter head of the first embodiment of the present utility model;

[0030] Figure 5 is a first overall structure schematic diagram of the second embodiment of the present utility model;

[0031] Figure 6 is a rotation schematic diagram of the first type of spiral cutter head of the second embodiment of the present utility model;

[0032] Figure 7 is a second overall structure schematic diagram of the second embodiment of the present utility model;

[0033] Figure 8 is a rotation schematic diagram of the second type of spiral cutter head of the second embodiment of the present utility model;

[0034] Figure 9 is a schematic diagram of the structure of the water dredging device of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] Embodiment 1

[0036] Refer to Figures 1 to 4, a dredging cutter head, comprising:

[0037] A base 110, in the middle of which there is a suction port 111;

[0038] A plurality of spiral cutter heads 120, which are arranged at the bottom of the base 110 and extend in a direction away from the base 110. A suction space 101 is formed between the spiral cutter heads 120, and the suction space 101 communicates with the suction port 111. Each spiral cutter head 120 rotates to transfer the silt into the suction space 101.

[0039] With the above structure, during use, the plurality of spiral cutter heads 120 rotate to fully stir and mix the soil and silt at the bottom of the water with water to form mud. At the same time, the plurality of spiral cutter heads 120 rotate simultaneously, and the centrifugal forces affect each other, continuously introducing the silt into the suction space 101, so that the mud in the suction space 101 maintains a high concentration. The mud is sucked out through the suction port, which can effectively improve the dredging capacity and efficiency of the product. As Figure 1 and 3 shown, the spiral cutter head 120 is connected to the drive motor 124, and the drive motor 124 drives the spiral cutter head 120 to rotate.

[0040] In this embodiment, the spiral cutter head 120 includes two inlet spiral cutter heads 121 and two outlet spiral cutter heads 122. The inlet spiral cutter heads 121 are arranged on the front side of the base 110 and are used to introduce the silt into the suction space 101. The outlet spiral cutter heads 122 are arranged on the rear side of the base 110 and are used to introduce the silt in the suction space 101 to the vicinity of the suction port 111. With the above structure, as Figure 4 shown, during use, the two inlet spiral cutter heads 121 are located on the front side of the base 110. When the base moves forward, the two inlet spiral cutter heads 121 fully stir and mix the soil and silt at the bottom of the water with water to form mud, and introduce the mud into the suction space 101. The two outlet spiral cutter heads 122 are located on the rear side of the base 110. During rotation, the mud can be conducted upward along the cutting edge of the outlet spiral cutter head 122 to the suction port 111, so that the mud can be efficiently discharged along the suction port 111, improving the dredging efficiency of the product.

[0041] In this embodiment, the rotation directions of the two inlet spiral cutter heads 121 are opposite, and the rotation directions of the two outlet spiral cutter heads 122 are opposite. With the above structure, as Figure 4 shown, the rotation directions of the two inlet spiral cutter heads 121 are opposite. The mud is subjected to the centrifugal forces of the two inlet spiral cutter heads 121, and the two centrifugal forces cancel each other out, so that the mud will not be thrown out. The two inlet spiral cutter heads 121 act together to make the mud along Figure 4It enters the suction space 101 in the direction shown by the arrow, ensuring the concentration of the mud in the suction space 101 and improving the efficiency of sucking the mud; the rotation directions of the two export spiral cutter heads 122 are opposite to those of the corresponding import spiral cutter heads 121, which can also keep the mud in the suction space 101 and further increase the mud concentration in the suction space 101.

[0042] In this embodiment, the rotation speed of the import spiral cutter head 121 is greater than that of the export spiral cutter head 122. With the above structure, by maintaining a relatively high rotation speed of the import spiral cutter head 121, the import spiral cutter head 121 can fully stir and mix the soil and water at the bottom of the water to form mud and quickly introduce the mud into the suction space 101; while the rotation speed of the export spiral cutter head 122 is relatively slow. On the one hand, it can block the mud thrown into the suction space 101 by the import spiral cutter head 121, and on the other hand, it can make the mud move upward along the cutting edge of the export spiral cutter head 122 to near the suction port 111, facilitating the quick suction of the mud.

[0043] In this embodiment, it further includes two baffles 130. The two baffles 130 are arranged on both sides of the base 110 and face the import spiral cutter head 121 and the export spiral cutter head 122. With the above structure, as Figure 2 and 4 shown, the baffles 130 facing the import spiral cutter head 121 and the export spiral cutter head 122 can prevent the mud from flowing out along the gap between the import spiral cutter head 121 and the export spiral cutter head 122, further ensuring the concentration of the mud in the suction space 101 and improving the dredging efficiency of the product.

[0044] In this embodiment, it further includes a suction pump 140. The inlet of the suction pump 140 is connected to the base 110 and communicates with the suction port 111. With the above structure, the suction pump 140 provides suction force to suck the mud out along the suction port 111 and discharge the mud along the outlet.

[0045] In this embodiment, it further includes a discharge pipe 150. One end of the discharge pipe 150 communicates with the outlet of the suction pump 140, and the other end of the discharge pipe 150 is used to communicate with the sludge conveying pipeline. With the above structure, one end of the discharge pipe 150 communicates with the outlet of the suction pump 140, and the other end communicates with the sludge conveying pipeline, which can pump the mud into the sludge conveying pipeline and finally discharge it to the sludge treatment place, effectively improving the sludge treatment efficiency.

[0046] In this embodiment, it further includes a housing 160. The housing 160 is connected to the base 110 and sleeved on the suction pump 140. The housing 160 is provided with an opening 161, and the outlet pipe 150 passes through the opening 161. Through the above structure, the housing 160 can effectively protect the suction pump 140, prevent the suction pump 140 from being collided and damaged, and extend the service life of the product.

[0047] Embodiment Two

[0048] Refer to Figures 5 to 8 , a dredging reamer head, comprising:

[0049] A base 110, with a suction port 111 provided in the middle of the base 110;

[0050] A plurality of spiral cutter heads 120, the spiral cutter heads 120 are arranged at the bottom of the base 110 and extend in a direction away from the base 110. A suction space 101 is formed between the spiral cutter heads 120, and the suction space 101 communicates with the suction port 111. Each of the spiral cutter heads 120 rotates to transfer the silt into the suction space 101. Through the above structure, during use, the multiple spiral cutter heads 120 rotate, fully stirring and mixing the soil and silt at the bottom of the water with water to form slurry. At the same time, the multiple spiral cutter heads 120 rotate simultaneously, and the centrifugal forces affect each other, continuously introducing the silt into the suction space 101, keeping the slurry in the suction space 101 at a high concentration. The slurry is sucked out through the suction port, which can effectively improve the dredging capacity and efficiency of the product.

[0051] In this embodiment, the spiral cutter head 120 includes two inlet spiral cutter heads 121 and two outlet spiral cutter heads 122. The inlet spiral cutter heads 121 are arranged at the front side of the base 110 and are used to introduce the silt into the suction space 101. The outlet spiral cutter heads 122 are arranged at the rear side of the base 110 and are used to introduce the silt in the suction space 101 near the suction port 111. Through the above structure, as Figure 6 and Figure 8 shown, during use, the two inlet spiral cutter heads 121 are located at the front side of the base 110. When the base moves forward, the two inlet spiral cutter heads 121 fully stir and mix the soil and silt at the bottom of the water with water to form slurry, and introduce the slurry into the suction space 101. The two outlet spiral cutter heads 122 are located at the rear side of the base 110, and during rotation, they can conduct the slurry upward along the cutting edges of the outlet spiral cutter heads 122 to the suction port 111, enabling the slurry to be efficiently discharged along the suction port 111 and improving the dredging efficiency of the product.

[0052] In this embodiment, the rotation directions of the two introduced spiral cutter heads 121 are opposite, and the rotation directions of the two exported spiral cutter heads 122 are opposite. Through the setting of the above structure, as Figure 6 and Figure 8 shown, the rotation directions of the two introduced spiral cutter heads 121 are opposite, and the slurry is subjected to the centrifugal forces of the two introduced spiral cutter heads 121. The two centrifugal forces cancel each other out, so that the slurry will not be thrown out. The two introduced spiral cutter heads 121 act together to make the slurry enter the suction space 101 along the Figure 6 or Figure 8 direction indicated by the arrow, ensuring the concentration of the slurry in the suction space 101 and improving the efficiency of sucking the slurry; and the rotation directions of the two exported spiral cutter heads 122 are opposite to the rotation directions of the corresponding introduced spiral cutter heads 121, which can also keep the slurry in the suction space 101 and further increase the concentration of the slurry in the suction space 101.

[0053] In this embodiment, the rotation speed of the introduced spiral cutter head 121 is greater than the rotation speed of the exported spiral cutter head 122. Through the setting of the above structure, by maintaining a relatively high rotation speed of the introduced spiral cutter head 121, the introduced spiral cutter head 121 can fully stir and mix the soil and water at the bottom of the water to form slurry and quickly introduce the slurry into the suction space 101; while the rotation speed of the exported spiral cutter head 122 is slower. On the one hand, it can block the slurry thrown into the suction space 101 by the introduced spiral cutter head 121, and on the other hand, it can make the slurry move upward along the cutting edge of the exported spiral cutter head 122 to near the suction port 111, facilitating the quick suction of the slurry.

[0054] In this embodiment, the spiral cutter head 120 further includes at least two blocking spiral cutter heads 123, and the blocking spiral cutter heads 123 are arranged on the base 110 and near the gap between the introduced spiral cutter head 121 and the exported spiral cutter head 122. Through the setting of the above structure, as Figure 6 shown, at the gap between the introduced spiral cutter head 121 and the exported spiral cutter head 122, a blocking spiral cutter head 123 is arranged. On the one hand, the blocking spiral cutter head 123 can block the slurry from flowing out along the gap between the introduced spiral cutter head 121 and the exported spiral cutter head 122, and on the other hand, it can rotate to bring the slurry to near the exported spiral cutter head 122 so that the exported spiral cutter head 122 can conduct the slurry upward to the suction port 111, improving the efficiency of sucking the slurry; as Figure 8As shown, at the gap between the inlet spiral cutter head 121 and the outlet spiral cutter head 122, two blocking spiral cutter heads 123 are provided. On the one hand, the two blocking spiral cutter heads 123 can block the mud from flowing out along the gap between the inlet spiral cutter head 121 and the outlet spiral cutter head 122. On the other hand, through rotation, they can offset the centrifugal force generated by the rotation of the inlet spiral cutter head 121 and the outlet spiral cutter head 122, so that the mud in the suction space 101 maintains a high concentration, enabling the outlet spiral cutter head 122 to conduct the mud upward to the suction port 111, thereby improving the efficiency of sucking mud.

[0055] Embodiment III

[0056] Refer to Figures 1 to 9 , a water dredging device, comprising:

[0057] A hull 200, which is used to float on the water surface;

[0058] A driving device 300, which is arranged on the upper surface of the hull 200;

[0059] A working arm 400, the connecting end of the working arm 400 is connected to the driving device 300 and moves under the action of the driving device 300;

[0060] The dredging cutter head is connected to the free end of the working arm 400.

[0061] Through the setting of the above structure, the hull 200 provides buoyancy, floats on the water surface, and can move to the position where the silt is deposited, facilitating the dredging work; while the driving device 300 can drive the working arm 400 to extend and move, and then drive the dredging cutter head 100 at the free end of the working arm 400, so that the dredging cutter head 100 acts on the soil and silt at the bottom of the water, enhancing the dredging effect of the product.

[0062] As described above, one or more implementation manners are provided in combination with specific contents, and it is not determined that the specific implementation of the present invention is only limited to these descriptions. Any method, structure, etc. that is similar or identical to the present invention, or any technical deduction or replacement made on the premise of the concept of the present invention, should be regarded as the protection scope of the present invention.

Claims

1. A dredging reamer head, characterized in that: include: A base (110), wherein a suction port (111) is provided in the middle of the base (110); A plurality of spiral cutter heads (120), the spiral cutter heads (120) being arranged at the bottom of the base (110) and extending in a direction away from the base (110), a suction space (101) being formed between the spiral cutter heads (120), the suction space (101) being connected to the suction port (111), and the spiral cutter heads (120) rotating to transfer sludge into the suction space (101); It also includes a driving motor (124), which is arranged on the base (110) and is connected to and drives each of the spiral cutter heads (120) to rotate.

2. The dredging reamer head according to claim 1, characterized in that: The spiral cutter head (120) comprises two inlet spiral cutter heads (121) and two outlet spiral cutter heads (122); the inlet spiral cutter head (121) is arranged at the front side of the base (110) and is used to introduce sludge into the suction space (101); the outlet spiral cutter head (122) is arranged at the rear side of the base (110) and is used to introduce sludge in the suction space (101) to the vicinity of the suction port (111).

3. The dredging reamer head according to claim 2, characterized in that: The two inlet spiral cutter heads (121) rotate in opposite directions, and the two outlet spiral cutter heads (122) rotate in opposite directions.

4. The dredging reamer head according to claim 2, characterized in that: The rotation speed of the inlet spiral cutter head (121) is greater than the rotation speed of the outlet spiral cutter head (122).

5. The dredging reamer head according to claim 3, characterized in that: It also includes two baffles (130), which are arranged on both sides of the base (110) and face the inlet spiral cutter head (121) and the outlet spiral cutter head (122).

6. The dredging reamer head according to claim 3, characterized in that: The spiral cutter head (120) further comprises at least two blocking spiral cutter heads (123), wherein the blocking spiral cutter heads (123) are arranged on the base (110) and close to the gap between the introduction spiral cutter head (121) and the outlet spiral cutter head (122).

7. The dredging reamer head according to claim 1, characterized in that: It also includes a suction pump (140), wherein the inlet of the suction pump (140) is connected to the base (110) and communicated with the suction port (111).

8. The dredging reamer head according to claim 7, characterized in that: It also comprises a delivery pipe (150), one end of which is connected to the outlet of the suction pump (140), and the other end of which is connected to the sludge conveying pipeline.

9. The dredging reamer head according to claim 8, characterized in that: It also includes a shell (160), the shell (160) is connected to the base (110) and is sleeved on the suction pump (140), the shell (160) is provided with an opening (161), and the outlet pipe (150) passes through the opening (161).

10. An above-water dredging device, characterized in that: include: A hull (200), wherein the hull (200) is used to float on the water surface; A driving device (300), wherein the driving device (300) is arranged on the upper surface of the hull (200); A working arm (400), wherein a connection end of the working arm (400) is connected to the driving device (300) and moves under the action of the driving device (300); The dredging reamer head (100) according to any one of claims 1 to 9, wherein the dredging reamer head is connected to the free end of the working arm (400).

Images