Dredging equipment for water conservancy construction

Abstract

The invention relates to the technical field of dredging, in particular to dredging equipment for water conservancy construction. The upper end of the connecting frame is connected to the moving mechanism; a protective cylinder is coaxially arranged below the supporting disc; the disturbance mechanism comprises a disturbance shaft; disturbance blade groups are fixed at the lower ends of the disturbance shafts; and a driving mechanism is arranged between the disturbance shaft and the supporting disc. The driving mechanism drives the stirring shaft to drive the stirring blade group to rotate around the axis of the stirring shaft while driving the stirring shaft to drive the stirring blade group to revolve around the axis of the protective cylinder. And the disturbance blade group rotates while revolving around the protective cylinder, so that the disturbance area range of the sludge is expanded, disturbance and scattering of the sludge are promoted, the probability that the suction holes are blocked by the unscattered sludge is reduced, and the dredging and desilting effects are improved.

Description

Technical Field

[0001] The invention relates to the technical field of dredging, and in particular to dredging equipment for water conservancy construction. Background Art

[0002] Dredging and desilting refers to the process of removing silt or sediment from the bottom of a water body. This process is very important for keeping the water clean, preventing water pollution, improving the water storage capacity of the water body, and maintaining the health of the water ecosystem. Dredging and desilting operations are often required in water conservancy construction. Common dredging and desilting equipment includes dredgers and other facilities. There are many types of dredgers, and each type of equipment has its specific application scenarios and advantages. Common ones include chain bucket dredgers, cutter suction dredgers, rake suction dredgers, and grab dredgers. Among them, the cutter suction dredger uses a rotating cutter to cut the silt on the bottom of the water into pieces, and then pumps it away through a sludge suction pipe. It is suitable for various types of bottom mud.

[0003] In the prior art, for example, a Chinese patent with announcement number CN209144901U, entitled "Suction Pump for River Desilting", discloses a technical solution which includes a pump body, a sludge suction port and a sludge discharge port. A filter screen for filtering sludge is provided around the sludge suction port at the bottom of the pump body. A sludge stirring frame is fixed on the side wall of the pump body. A stirring vertical cylinder is fixedly installed on the sludge stirring frame. A sludge stirring shaft is rotatably installed through the stirring vertical cylinder. A sludge stirring blade for stirring sludge is installed on the sludge stirring shaft. During dredging, the sludge stirring blade stirs the sludge deposited and compacted on the riverbed. After the sludge and water are disturbed and broken into a muddy and water mixture, the sludge is filtered through the filter screen and then sucked out by the pump body to achieve dredging. However, the sludge usually accumulates thicker after a long period of sedimentation, and since the position of the sludge stirring blades relative to the pump body is fixed, the stirring range of the sludge stirring blades is limited, which affects the disturbance and dispersion effect of the sludge stirring blades on the sludge. As a result, the sludge that has not been dispersed may clog the filter holes on the filter screen, thereby affecting the dredging and desilting effect. Summary of the invention

[0004] The present invention provides a dredging device for water conservancy construction to solve the above problems.

[0005] A dredging device for water conservancy construction of the present invention adopts the following technical scheme: a dredging device for water conservancy construction, comprising a connecting frame and a disturbance mechanism; the upper end of the connecting frame is connected to the moving mechanism, and a suction pump is fixed to the lower end; the liquid inlet of the suction pump is arranged downward; a support plate with a vertical axis is fixed to the liquid inlet of the suction pump; a through hole is provided at the axis of the support plate; the through hole is connected to the liquid inlet of the suction pump; a protective cylinder is coaxially provided below the support plate; the protective cylinder cover is provided on the outside of the through hole; the upper end of the protective cylinder is fixedly installed on the support plate; a plurality of suction holes are provided on the side wall of the protective cylinder; the protective cylinder prevents large pieces of silt from entering the suction pump and jamming the suction pump.

[0006] There are multiple disturbance mechanisms, which are distributed along the circumference of the protective tube; the disturbance mechanism includes a disturbance shaft; the disturbance shaft is vertically arranged, and a pulley is coaxially installed on the upper end; the pulley is slidably installed around the axis of the support disk at the lower end of the support disk; a disturbance blade group is fixed to the lower end of the disturbance shaft; a driving mechanism is arranged between the disturbance shaft and the support disk; the driving mechanism is used to drive the disturbance shaft to drive the disturbance blade group to revolve around the axis of the protective tube, and drive the disturbance shaft to drive the disturbance blade group to rotate around the axis of the disturbance shaft. By rotating the disturbance blade group while revolving around the protective tube, the disturbance area of ​​the sludge is expanded, and the disturbance and dispersion of the sludge are promoted, thereby reducing the probability of the undispersed sludge blocking the suction hole, and improving the dredging and desilting effect.

[0007] Furthermore, the disturbance blade group includes a plurality of disturbance blades distributed around the disturbance axis; the disturbance blades are radially extended along the disturbance axis; one end of the disturbance blades away from the disturbance axis is set as the disturbance end; the disturbance ends of the plurality of disturbance blades are sequentially connected and enclosed in a circle along the circumference of the disturbance axis and are cam-shaped. When the disturbance shaft rotates, it drives the cam-shaped disturbance blade group to rotate eccentrically. Due to the difference in the length of the disturbance blades, the linear speed at the disturbance end of the disturbance blade is different, which promotes the disturbance of the silt and improves the effect of dredging. When the disturbance end farther from the disturbance axis rotates and approaches the protective tube, the gap between the disturbance end and the protective tube becomes narrower, so that when the muddy water flows through the gap between the disturbance end and the protective tube, water flow fluctuations are generated, and the muddy water impacts the protective tube and causes the protective tube to vibrate, so as to vibrate and drop the silt blocked at the suction hole, thereby preventing the suction hole from being blocked.

[0008] Furthermore, the driving mechanism includes a central gear ring, an outer gear ring, a planetary gear and a power structure; the central gear ring is coaxially sleeved on the outside of the protective tube and is rotatably mounted on the lower end of the support plate; the outer gear ring is coaxially sleeved on the outside of the central gear ring; the outer gear ring is fixed to the lower end of the support plate; the planetary gear is arranged between the central gear ring and the outer gear ring and is below the pulley; the planetary gear is coaxially fixed on the disturbance shaft; the planetary gear is meshed with the central gear ring; the planetary gear is meshed with the outer gear ring. The power structure is used to drive the central gear ring to rotate, so as to drive the planetary gear to drive the disturbance shaft to rotate while revolving around the axis of the protective tube.

[0009] Furthermore, the disturbance mechanism also includes a cooperating blade group and a transmission assembly; the cooperating blade group is arranged above the disturbance blade group; the transmission assembly is used to drive the cooperating blade group to rotate around the disturbance axis, and the rotation direction of the cooperating blade group is opposite to the rotation direction of the disturbance blade group, thereby causing the upper and lower layers of sludge to flow in opposite directions, so that impact waves are formed between the upper and lower layers of sludge, making the sludge more dispersed and easier to be sucked out, and can reduce the vortex formed by the rotation and reduce the concentration of impurities near the suction hole.

[0010] Furthermore, the mating blade group includes a mating cylinder; the mating cylinder is coaxially sleeved on the disturbance shaft and is located above the disturbance blade; the mating cylinder is rotatably installed on the disturbance shaft; a plurality of mating blades are provided at the lower end of the mating cylinder; the plurality of mating blades are distributed circumferentially along the mating cylinder; the mating blades are radially extended along the disturbance shaft; the end of the mating blade away from the disturbance shaft is set as the mating end; the mating ends of the plurality of mating blades are sequentially connected and enclosed in a circle along the circumference of the disturbance shaft and are cam-shaped.

[0011] Further, the transmission assembly includes a transmission frame, an upper bevel gear, a lower bevel gear, and a middle bevel gear; the transmission frame and the disturbance shaft are rotatably matched and are slidably mounted on the lower end of the support plate around the axis of the protective tube; the upper bevel gear is coaxially fixed on the side wall of the disturbance shaft and is located above the matching tube; the lower bevel gear is located below the upper bevel gear and is coaxially fixed on the upper end of the matching tube; the middle bevel gear is arranged between the upper bevel gear and the lower bevel gear; the axis of the middle bevel gear is arranged radially along the disturbance shaft; the middle bevel gear is rotatably mounted on the transmission frame; the middle bevel gear is meshed with the upper bevel gear; the middle bevel gear is meshed with the lower bevel gear. When the central gear ring rotates, the planetary gear drives the disturbance shaft to rotate while revolving around the axis of the protective tube. In this process, the disturbance shaft drives the middle bevel gear to rotate through the upper bevel gear, the middle bevel gear drives the lower bevel gear to rotate, and the lower bevel gear drives the matching tube to rotate, and the rotation direction of the matching tube is opposite to the rotation direction of the disturbance shaft, so that the matching blade and the disturbance blade rotate in opposite directions.

[0012] Furthermore, the disturbance blades and the matching blades are arranged with an inclination.

[0013] Furthermore, a T-shaped groove is provided at the lower end of the support plate; the T-shaped groove is annular; the vertical cross section of the pulley is T-shaped; and the pulley is slidably installed in the T-shaped groove.

[0014] Furthermore, the power structure includes a power motor and a power gear ring; the power gear ring is coaxially fixed on the upper end face of the center gear ring; the power motor is fixed on the support plate; an intermediate gear is fixed on the output shaft of the power motor; and the intermediate gear is meshed with the power gear ring.

[0015] Furthermore, a protective frame is fixed on the outer side of the connecting frame.

[0016] The beneficial effects of the present invention are: 1. The driving mechanism drives the stirring shaft to drive the stirring blade group to revolve around the axis of the protective cylinder, and at the same time drives the stirring shaft to drive the stirring blade group to rotate around the axis of the stirring shaft. By making the disturbance blade group revolve around the protective cylinder and rotate at the same time, the disturbance area of ​​the sludge is expanded, and the disturbance and dispersion of the sludge are promoted, thereby reducing the probability of the undispersed sludge blocking the suction hole and improving the dredging and desilting effect.

[0017] 2. When the disturbance shaft rotates, it drives the cam-shaped disturbance blade group to rotate eccentrically. Due to the difference in blade length, the linear speed at the disturbance end of the blade is different, which promotes the disturbance of silt and improves the effect of dredging. When the disturbance end far from the disturbance shaft rotates and approaches the protective cylinder, the gap between the disturbance end and the protective cylinder becomes narrower, so that when muddy water flows through the gap between the disturbance end and the protective cylinder, water flow fluctuations are generated. The muddy water impacts the protective cylinder and makes the protective cylinder vibrate, so as to vibrate and drop the silt blocked at the suction hole, thereby preventing the suction hole from being blocked.

[0018] 3. The rotation direction of the coordinating blade group is opposite to that of the disturbance blade group, thereby causing the upper and lower layers of sludge to flow in opposite directions, forming impact waves between the upper and lower layers of sludge, making the sludge more dispersed and easier to remove by suction, and reducing the vortex formed by rotation and the concentration of impurities near the suction hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a dredging device for water conservancy construction of the present invention; Figure 2 A side view of an embodiment of a dredging device for water conservancy construction according to the present invention; Figure 3 for Figure 2 Sectional view at AA in the middle; Figure 4 for Figure 3 The enlarged view of point D in the middle; Figure 5 A front view of an embodiment of a dredging device for water conservancy construction of the present invention; Figure 6 for Figure 5 Sectional view at the middle BB; Figure 7 A schematic diagram of a suction pump, a support plate, and a protective cylinder of an embodiment of a dredging device for water conservancy construction of the present invention; Figure 8 for Figure 7 Sectional view at CC; Fig. 9 for Figure 8 Enlarged view of point E in the middle; Fig.10It is a schematic diagram of a driving mechanism and a disturbance mechanism of an embodiment of a dredging device for water conservancy construction of the present invention; Fig.11 It is a schematic diagram from another angle of an embodiment of a dredging device for water conservancy construction of the present invention.

[0021] In the figure: 100, connecting frame; 110, protection frame; 200, suction pump; 300, support plate; 310, protection cylinder; 311, suction hole; 320, T-slot; 410, disturbance shaft; 420, pulley; 430, disturbance blade; 440, matching blade; 450, matching cylinder; 510, transmission frame; 520, upper bevel gear; 530, lower bevel gear; 540, middle bevel gear; 610, center gear ring; 620, outer gear ring; 630, planetary gear; 640, power motor; 650, power gear ring. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] An embodiment of a dredging device for water conservancy construction of the present invention is as follows Figures 1 to 11 As shown: a dredging equipment for water conservancy construction, including a connecting frame 100 and a disturbance mechanism; the upper end of the connecting frame 100 is connected to the moving mechanism, and a suction pump 200 is fixed to the lower end; the moving mechanism is a dredging ship or a dredging vehicle; a protective frame 110 is fixed to the outer side of the connecting frame 100.

[0024] The liquid inlet of the suction pump 200 is arranged downward; a support plate 300 with a vertical axis is fixed on the liquid inlet of the suction pump 200; a through hole is provided at the axis of the support plate 300; the through hole is connected to the liquid inlet of the suction pump 200; a protective cylinder 310 is coaxially provided below the support plate 300; the protective cylinder 310 cover is arranged on the outside of the through hole; the upper end of the protective cylinder 310 is fixedly installed on the support plate 300; a plurality of suction holes 311 are provided on the side wall of the protective cylinder 310; the protective cylinder 310 prevents large pieces of sludge from entering the suction pump 200 and jamming the suction pump 200.

[0025] There are multiple disturbance mechanisms, which are distributed along the circumference of the protective tube 310; the disturbance mechanism includes a disturbance shaft 410, a matching blade group, and a transmission assembly; the disturbance shaft 410 is vertically arranged, and a pulley 420 is coaxially mounted on the upper end; the pulley 420 is slidably mounted on the lower end of the support disk 300 around the axis of the support disk 300; a T-shaped slot 320 is provided at the lower end of the support disk 300; the T-shaped slot 320 is annular; the vertical cross-section of the pulley 420 is T-shaped; the pulley 420 is slidably mounted in the T-shaped slot 320. A disturbance blade group is fixed at the lower end of the disturbance shaft 410; a driving mechanism is arranged between the disturbance shaft 410 and the support disk 300; the driving mechanism is used to drive the disturbance shaft 410 to drive the disturbance blade group to revolve around the axis of the protective tube 310, and drive the disturbance shaft 410 to drive the disturbance blade group to rotate around the axis of the disturbance shaft 410. By causing the disturbance blade group to revolve around the protective tube 310 and rotate at the same time, the disturbance area of ​​the sludge is expanded, and the disturbance and breaking up of the sludge is promoted, thereby reducing the probability of the unbroken sludge clogging the suction hole 311 and improving the dredging and desilting effect.

[0026] The disturbance blade group includes a plurality of disturbance blades 430 distributed around the disturbance axis 410; the disturbance blades 430 are radially extended along the disturbance axis 410; one end of the disturbance blade 430 away from the disturbance axis 410 is set as the disturbance end; the disturbance ends of the plurality of disturbance blades 430 are sequentially connected and enclosed in a circle along the circumference of the disturbance axis 410 and are cam-shaped. When the disturbance axis 410 rotates, the cam-shaped disturbance blade group is driven to rotate eccentrically. Due to the difference in the length of the disturbance blades 430, the linear speed at the disturbance end of the disturbance blades 430 is different, which promotes the disturbance of the silt and improves the effect of dredging. When the disturbance end farther from the disturbance shaft 410 rotates and approaches the protective cylinder 310, the gap between the disturbance end and the protective cylinder 310 becomes narrower, so that muddy water flows through the gap between the disturbance end and the protective cylinder 310, generating water flow fluctuations, and the muddy water impacts the protective cylinder 310 and causes the protective cylinder 310 to vibrate, so as to vibrate and drop the silt blocking the suction hole 311, thereby preventing the suction hole 311 from being blocked.

[0027] The driving mechanism includes a central gear ring 610, an outer gear ring 620, a planetary gear 630 and a power structure; the central gear ring 610 is coaxially sleeved on the outside of the protective tube 310 and is rotatably mounted on the lower end of the support plate 300; the outer gear ring 620 is coaxially sleeved on the outside of the central gear ring 610; the outer gear ring 620 is fixed on the lower end of the support plate 300; the planetary gear 630 is arranged between the central gear ring 610 and the outer gear ring 620 and is below the pulley 420; the planetary gear 630 is coaxially fixed on the disturbance shaft 410; the planetary gear 630 is meshed with the central gear ring 610; the planetary gear 630 is meshed with the outer gear ring 620. The power structure is used to drive the central gear ring 610 to rotate, so as to drive the planetary gear 630 to drive the disturbance shaft 410 to rotate and revolve around the axis of the protective tube 310. The power structure includes a power motor 640 and a power gear ring 650; the power gear ring 650 is coaxially fixed on the upper end surface of the center gear ring 610; the power motor 640 is fixed on the support plate 300; an intermediate gear is fixed on the output shaft of the power motor 640; the intermediate gear and the power gear ring 650 are meshed.

[0028] The cooperating blade group is arranged above the disturbance blade group; the transmission assembly is used to drive the cooperating blade group to rotate around the disturbance axis 410, and the rotation direction of the cooperating blade group is opposite to that of the disturbance blade group, thereby causing the upper and lower layers of sludge to flow in opposite directions, so that impact waves are formed between the upper and lower layers of sludge, making the sludge more dispersed and easier to be sucked out, and can reduce the vortex formed by the rotation, reducing the concentration of impurities near the suction hole 311.

[0029] The mating blade group includes a mating cylinder 450; the mating cylinder 450 is coaxially sleeved on the disturbance shaft 410 and is located above the disturbance blade 430; the mating cylinder 450 is rotatably installed on the disturbance shaft 410; a plurality of mating blades 440 are provided at the lower end of the mating cylinder 450; the plurality of mating blades 440 are distributed circumferentially along the mating cylinder 450; the mating blades 440 are radially extended along the disturbance shaft 410; one end of the mating blade 440 away from the disturbance shaft 410 is set as a mating end; the mating ends of the plurality of mating blades 440 are sequentially connected and enclosed in a circle along the circumference of the disturbance shaft 410 and are cam-shaped.

[0030] The transmission assembly includes a transmission frame 510, an upper bevel gear 520, a lower bevel gear 530, and a middle bevel gear 540; the transmission frame 510 and the disturbance shaft 410 are rotationally matched, and are slidably installed at the lower end of the support plate 300 around the axis of the protective cylinder 310; the upper bevel gear 520 is coaxially fixed on the side wall of the disturbance shaft 410 and is located above the matching cylinder 450; the lower bevel gear 530 is located below the upper bevel gear 520 and is coaxially fixed at the upper end of the matching cylinder 450; the middle bevel gear 540 is arranged between the upper bevel gear 520 and the lower bevel gear 530; the axis of the middle bevel gear 540 is arranged along the radial direction of the disturbance shaft 410; the middle bevel gear 540 is rotationally installed on the transmission frame 510; the middle bevel gear 540 is meshed with the upper bevel gear 520; the middle bevel gear 540 is meshed with the lower bevel gear 530. The disturbance blade 430 and the matching blade 440 are arranged obliquely. When the central gear ring 610 rotates, it drives the planetary gear 630 to drive the disturbance shaft 410 to rotate while revolving around the axis of the protective tube 310. During this process, the disturbance shaft 410 drives the middle bevel gear 540 to rotate through the upper bevel gear 520, the middle bevel gear 540 drives the lower bevel gear 530 to rotate, and the lower bevel gear 530 drives the matching tube 450 to rotate, and the rotation direction of the matching tube 450 is opposite to that of the disturbance shaft 410, so that the matching blade 440 and the disturbance blade 430 rotate in opposite directions.

[0031] In combination with the above embodiments, the use principle and working process of the present invention are as follows: when in use, the power motor 640 drives the central gear ring 610 to rotate through the power gear ring 650, and when the central gear ring 610 rotates, it drives the planetary gear 630 to drive the disturbance shaft 410 to rotate while revolving around the axis of the protective tube 310. In this process, the disturbance shaft 410 drives the middle bevel gear 540 to rotate through the upper bevel gear 520, the middle bevel gear 540 drives the lower bevel gear 530 to rotate, and the lower bevel gear 530 drives the matching tube 450 to rotate, and the rotation direction of the matching tube 450 is opposite to the rotation direction of the disturbance shaft 410, so that the matching blade 440 and the disturbance blade 430 rotate in opposite directions. When the disturbance shaft 410 rotates, it drives the cam-shaped disturbance blade group to rotate eccentrically. Due to the difference in the length of the disturbance blade 430, the linear speed at the disturbance end of the disturbance blade 430 is different, which promotes the disturbance of silt and improves the effect of dredging. When the disturbance end farther from the disturbance shaft 410 rotates and approaches the protective cylinder 310, the gap between the disturbance end and the protective cylinder 310 becomes narrower, so that when muddy water flows through the gap between the disturbance end and the protective cylinder 310, water flow fluctuations are generated, and the muddy water impacts the protective cylinder 310 and causes the protective cylinder 310 to vibrate, so as to vibrate and drop the silt blocked at the suction hole 311, thereby preventing the suction hole 311 from being blocked. At the same time, the rotation direction of the matching blade 440 is opposite to that of the disturbance blade 430, so that the upper and lower layers of the silt flow in opposite directions, so that impact fluctuations are formed between the upper and lower layers of the silt, making the silt more dispersed and easier to be sucked and removed, and reducing the vortex formed by the rotation, and reducing the concentration of impurities near the suction hole 311. After the disturbance blade 430 and the matching blade 440 break up the silt disturbance, the muddy water passes through the suction hole 311 and is sucked away by the suction pump 200, thereby achieving dredging.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dredging device for water conservancy construction, characterized in that: Including a connecting frame and a disturbance mechanism; The upper end of the connecting frame is connected to the moving mechanism, and a suction pump is fixed to the lower end; the liquid inlet of the suction pump is arranged downward; a support plate with a vertical axis is fixed to the liquid inlet of the suction pump; a through hole is arranged at the axis of the support plate; the through hole is connected to the liquid inlet of the suction pump; a protective cylinder is coaxially arranged below the support plate; the protective cylinder cover is arranged outside the through hole; the upper end of the protective cylinder is fixedly installed on the support plate; a plurality of suction holes are arranged on the side wall of the protective cylinder; There are multiple disturbance mechanisms distributed along the circumference of the protective tube; the disturbance mechanism includes a disturbance shaft; the disturbance shaft is vertically arranged, and a pulley is coaxially installed on the upper end; the pulley is slidably installed around the axis of the support disk at the lower end of the support disk; a disturbance blade group is fixed to the lower end of the disturbance shaft; a driving mechanism is arranged between the disturbance shaft and the support disk; the driving mechanism is used to drive the disturbance shaft to drive the disturbance blade group to revolve around the axis of the protective tube, and at the same time drive the disturbance shaft to drive the disturbance blade group to rotate around the axis of the disturbance shaft.

2. A dredging device for water conservancy construction according to claim 1, characterized in that: The disturbance blade group includes a plurality of disturbance blades distributed around a disturbance axis; the disturbance blades are radially extended along the disturbance axis; one end of the disturbance blade away from the disturbance axis is set as a disturbance end; the disturbance ends of the plurality of disturbance blades are sequentially connected and enclosed in a circle along the circumference of the disturbance axis and are cam-shaped.

3. A dredging device for water conservancy construction according to claim 2, characterized in that: The driving mechanism includes a central gear ring, an outer gear ring, planetary gears and a power structure; The central gear ring is coaxially sleeved on the outside of the protective tube and rotatably mounted on the lower end of the support plate; the outer gear ring is coaxially sleeved on the outside of the central gear ring; the outer gear ring is fixed to the lower end of the support plate; the planetary gear is arranged between the central gear ring and the outer gear ring and is located below the pulley; the planetary gear is coaxially fixed on the disturbance shaft; the planetary gear is meshed with the central gear ring; the planetary gear is meshed with the outer gear ring; The power structure is used to drive the central gear ring to rotate.

4. A dredging device for water conservancy construction according to claim 3, characterized in that: The disturbance mechanism also includes a matching blade group and a transmission assembly; the matching blade group is arranged above the disturbance blade group; the transmission assembly is used to drive the matching blade group to rotate around the disturbance axis, and the rotation direction of the matching blade group is opposite to the rotation direction of the disturbance blade group.

5. A dredging device for water conservancy construction according to claim 4, characterized in that: The matching blade group includes a matching cylinder; the matching cylinder is coaxially sleeved on the disturbance shaft and is located above the disturbance blade; the matching cylinder is rotatably mounted on the disturbance shaft; a plurality of matching blades are arranged at the lower end of the matching cylinder; and the plurality of matching blades are distributed along the circumference of the matching cylinder; The matching blade is arranged to extend radially along the disturbance axis; one end of the matching blade away from the disturbance axis is set as the matching end; the matching ends of the multiple matching blades are sequentially connected and surrounded along the circumference of the disturbance axis and are cam-shaped.

6. A dredging device for water conservancy construction according to claim 5, characterized in that: The transmission assembly includes a transmission frame, an upper bevel gear, a lower bevel gear, and a middle bevel gear; The transmission frame and the disturbance shaft are rotationally matched and are slidably mounted on the lower end of the support plate around the axis of the protective tube; the upper bevel gear is coaxially fixed on the side wall of the disturbance shaft and is located above the matching tube; the lower bevel gear is located below the upper bevel gear and is coaxially fixed on the upper end of the matching tube; the middle bevel gear is arranged between the upper bevel gear and the lower bevel gear; The axis of the middle bevel gear is arranged radially along the disturbance axis; the middle bevel gear is rotatably mounted on the transmission frame; the middle bevel gear is meshed with the upper bevel gear; and the middle bevel gear is meshed with the lower bevel gear.

7. The dredging equipment for water conservancy construction according to claim 5, characterized in that: Disturbance blade and matching blade tilt settings.

8. The dredging equipment for water conservancy construction according to claim 7, characterized in that: A T-shaped groove is provided at the lower end of the support plate; the T-shaped groove is annular; the vertical section of the pulley is T-shaped; and the pulley is slidably installed in the T-shaped groove.

9. A dredging device for water conservancy construction according to claim 8, characterized in that: The power structure includes a power motor and a power gear ring; the power gear ring is coaxially fixed on the upper end surface of the center gear ring; the power motor is fixed on the support plate; an intermediate gear is fixed on the output shaft of the power motor; and the intermediate gear is meshed with the power gear ring.

10. The dredging equipment for water conservancy construction according to claim 1, characterized in that: A protective frame is fixed on the outer side of the connecting frame.

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