CN110173013B

CN110173013B - Stirring shaft, dredging mechanism and dredging equipment

Info

Publication number: CN110173013B
Application number: CN201910331924.2A
Authority: CN
Inventors: 肖曜; 樊兴胜; 欧阳雁峰
Original assignee: Hunan Ruigong Machinery Technology Co ltd
Current assignee: Hunan Ruigong Machinery Technology Co ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2021-07-20
Anticipated expiration: 2039-04-24
Also published as: CN110173013A

Abstract

The embodiment of the invention discloses a stirring shaft, a dredging mechanism and dredging equipment, wherein the stirring shaft comprises: the shaft body is provided with a guide section and a stirring section along the axial direction of the shaft body; the first cutter is arranged on the guide section and used for guiding the materials in the corresponding area of the guide section to the corresponding area of the stirring section; and the second cutter is arranged on the stirring section and is used for stirring the materials in the corresponding area of the stirring section. Through the material guide of first cutter with the corresponding region of guide section to the corresponding region of stirring section, avoided the deposit of material at the tip of axle body to overcome the inside deposit of material and needed the impaired defect of operating efficiency that artifical maintenance leads to, and through set up first cutter on the guide section of axle body and can in time guide the material in dead angle region to the stirring section, stir the material through the second cutter of stirring section, be convenient for improve desilting efficiency, improve the desilting quality.

Description

Stirring shaft, dredging mechanism and dredging equipment

Technical Field

The invention relates to the field of dredging, in particular to a stirring shaft, a dredging mechanism and dredging equipment.

Background

Dredging of river channels or settling ponds is generally carried out by mechanical equipment, such as dredging mechanisms of bucket type, jet suction type, mechanical cutter suction type, hydraulic cutter suction type, drag suction type and the like. During the desilting operation of current mechanical equipment, often deposit the material in the inside desilting mechanism easily, especially to silt or the partial area that deposit material density is big, often lead to the desilting mechanism to be unable to continue work because of inside sedimentary material, and need the manual work to overhaul or clear away sedimentary material, lead to operating efficiency to receive serious influence.

Disclosure of Invention

In view of this, the embodiment of the present invention provides a stirring shaft, a dredging mechanism and a dredging apparatus, and aims to effectively solve the problem of operation efficiency damage caused by material deposition in the dredging mechanism.

The technical scheme of the embodiment of the invention is realized as follows:

in a first aspect of embodiments of the present invention, there is provided a stirring shaft, including:

the shaft body is provided with a guide section and a stirring section along the axial direction of the shaft body;

the first cutter is arranged on the guide section and used for guiding the materials in the corresponding area of the guide section to the corresponding area of the stirring section;

and the second cutter is arranged on the stirring section and is used for stirring the materials in the corresponding area of the stirring section.

Further, the second cutter comprises at least two stirring blades which are arranged on the stirring section at intervals; each stirring blade comprises a connecting part and at least one blade tooth part, the connecting part is fixedly connected to the stirring section, and the blade tooth part is arranged on the connecting part.

Further, the blade tooth portion has a curved surface section that rotates and twists about the connecting portion.

Furthermore, the number of the knife-tooth parts is even, and the even number of the knife-tooth parts are arranged on the connecting part in pairs; or the number of the knife-tooth parts is odd, and the odd number of the knife-tooth parts are arranged on the connecting part at intervals.

Further, the at least two stirring blades are arranged on the stirring section at different angles, and envelope lines of outer edges of the blade tooth parts of the at least two stirring blades are spiral.

Furthermore, the first cutter is spiral and fixedly connected to the guide section; and/or the second cutter is fixedly connected with a cutter tooth seat on the stirring section, the cutter tooth seat is in a spiral shape, and concave parts or convex parts are arranged on the spiral cutter tooth seat at intervals.

In a second aspect of the embodiments of the present invention, a dredging mechanism is provided, which includes a shovel hopper, a driving mechanism, and at least one stirring shaft according to any one of the foregoing embodiments, where the stirring shaft is disposed on the shovel hopper, and the driving mechanism corresponds to the stirring shaft and is disposed on the shovel hopper, and is configured to drive the stirring shaft to rotate.

Further, the shovel hopper includes two mounting panels that set up relatively along width direction and is located the baffle of rear end, two the mounting panel with the baffle is connected, forms front end open-ended frame construction, the mounting panel includes certainly direction section, linking section, the necking down section that the front end of shovel hopper connects gradually to the rear end, two width between the direction section of mounting panel is greater than the width between the necking down section, the quantity of (mixing) shaft is two, two the (mixing) shaft sets up in two crisscross between the mounting panel, each be close to on the (mixing) shaft the tip of guide section sets up in corresponding the direction section of mounting panel, each be close to on the (mixing) shaft the tip of stirring section set up in corresponding the necking down section of mounting panel, actuating mechanism sets up in corresponding the necking down section of mounting panel.

Furthermore, the height of the guide section of the corresponding mounting plate, at which the stirring shaft is arranged, is lower than the height of the corresponding necking section of the mounting plate, at which the stirring shaft is arranged.

In a third aspect of the embodiments of the present invention, a dredging apparatus is provided, which includes a movable vehicle body, and the dredging mechanism of any one of the foregoing embodiments is disposed on the movable vehicle body.

According to the technical scheme provided by the embodiment of the invention, the first cutter is arranged on the guide section of the shaft body, and the material in the corresponding area of the guide section is guided to the corresponding area of the stirring section through the first cutter, so that the material deposition at the end part of the shaft body is avoided, the defect that the operation efficiency is damaged due to the fact that the material deposition in the material needs manual maintenance is overcome, the material in the dead angle area can be timely guided to the stirring section through the first cutter arranged on the guide section of the shaft body, and the material is stirred through the second cutter of the stirring section, so that the desilting efficiency is improved, and the desilting quality is improved.

Drawings

FIG. 1 is a schematic view of a stirring shaft according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a stirring blade according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a dredging mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view illustrating the installation and engagement of the stirring shaft and the bearing seat in one embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is an enlarged partial view of the portion B in FIG. 4;

fig. 7 is a schematic structural diagram of a dredging apparatus in an embodiment of the present invention.

Description of reference numerals:

1. a shaft body; 101. a guide section; 102. a stirring section;

2. a first cutter;

3. a stirring blade; 301. a connecting portion; 302. a cutter tooth part; 3021. a curved surface section; 3022. a slope section;

4. shoveling a hopper; 401. mounting a plate; 4011. a guide section; 40111. a guide plate;

40112. a side plate; 40113. a carrier plate; 4012. a joining section; 4013. a necking section;

402. a baffle plate;

5. a first bearing housing; 6. a second bearing housing; 601. an oil inlet;

7. a first wear sleeve; 8. a second wear sleeve;

9. a first O-ring; 10. a second O-ring;

11. a drive mechanism;

12. a first J-shaped dust ring; 13. a first Y-shaped seal ring;

14. a first self-aligning roller bearing;

15. a third O-ring; 16. a cover plate;

17. a second J-shaped dust ring; 18. a second Y-shaped seal ring;

19. a second self-aligning roller bearing;

20. a fourth O-ring;

21. a mobile vehicle body; 2101. a crawler belt; 2102. a frame;

22. a pumping system;

23. a delivery pipe.

Detailed Description

The technical scheme of the invention is further elaborated by combining the drawings and the specific embodiments in the specification. It should be understood that the examples provided herein are merely illustrative of the present invention and are not intended to limit the present invention. In addition, the following embodiments are provided as partial embodiments for implementing the present invention, not all embodiments for implementing the present invention, and the technical solutions described in the embodiments of the present invention may be implemented in any combination without conflict.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an embodiment of the present invention provides a stirring shaft, which includes a shaft body 1, a first cutter 2 and a second cutter. Wherein, the shaft body 1 is provided with a guide section 101 and a stirring section 102 along the axial direction; the first cutter 2 is arranged on the guide section 101 and used for guiding materials in a corresponding area of the guide section 101 to a corresponding area of the stirring section 102; the second cutter is disposed on the stirring section 102 and is used for stirring the material in the corresponding region of the stirring section 102.

The (mixing) shaft that this embodiment provided, through set up first cutter 2 on the guide segment 101 at axle body 1, through the corresponding regional material guide of first cutter 2 with guide segment 101 to the corresponding region of stirring section 102, the deposit of material at the tip of axle body 1 has been avoided, thereby overcome the impaired defect of the operating efficiency that needs the artifical maintenance of the inside deposit of material result in and lead to, and can in time guide the regional material of dead angle to stirring section 102 through set up first cutter 2 on the guide segment 101 at axle body 1, stir the material through the second cutter of stirring section 102, be convenient for improve desilting efficiency, improve the desilting quality.

The first cutter 2 may be helical and fixed to the guide section 101, and when the shaft body 1 is driven by an external force to rotate, the helical first cutter 2 extrudes and guides the material in the corresponding area of the guide section 101 to the corresponding area of the stirring section 102. Optionally, set up on first cutter 2 and have spaced convex part or concave part to form the sawtooth on spiral helicine first cutter 2, thereby carry out the primary mixing to the material when guiding the material, can realize the breakage of large granule material, it is abundant to do benefit to subsequent material stirring, reinforcing desilting effect and promotion desilting efficiency. The first tool 2 may be welded to the guide section 101 to achieve a reliable connection between the first tool 2 and the shaft body 1. Optionally, the first tool 2 may be fixedly connected to the guide section 101 by screws, pins, or rivets, or may be fastened by a snap structure, so as to facilitate quick replacement of the first tool 2 after being worn.

In an embodiment, the second cutter comprises at least two stirring blades 3, and the at least two stirring blades 3 are arranged on the stirring section 102 at intervals. Referring to fig. 2, each stirring blade 3 includes a connecting portion 301 and at least one blade portion 302, the connecting portion 301 is fixed to the stirring section 102, and the blade portion 302 is disposed on the connecting portion 301. Through set up two or more than two stirring vane 3 at the interval on stirring section 102, can realize the stirring to the material in stirring section 102 correspondence region to realize material stirring and broken effect, be convenient for to the desilting operation of deposit material.

Optionally, referring to fig. 2, the cutter tooth portion 302 has a curved section 3021 that rotates and twists around the connecting portion 301. In an embodiment, the connection portion 301 is annular, the knife-tooth portion 302 is disposed on the periphery of the annular connection portion 301 and extends in the radial direction, the knife-tooth portion 302 rotates and twists in a left-handed spiral shape or a right-handed spiral shape around the axis of the center of the connection portion 301 to form the curved surface section 3021, so that when the knife-tooth portion 302 rotates under the driving of the shaft body 1 through the connection portion 301, an axial extrusion force and a circumferential shearing force are formed on the material, so as to guide the material in the corresponding region of the stirring section 102 from the end portion of the shaft body 1 to the middle portion, and stir the material. Optionally, the cutter tooth portion 302 is integrally formed with the connecting portion 301, and the connecting portion 301 is welded and fixed on the stirring section 102. Optionally, the cutter tooth portion 302 may be fixedly connected to the connecting portion 301 through screws, rivets, or the like, so that the cutter tooth portion 302 is conveniently replaced after being abraded due to friction with materials, the overall replacement of the stirring blade 3 is avoided, and the maintenance cost is saved.

In an embodiment, referring to fig. 1, the plurality of stirring blades 3 are disposed on the stirring section 102 at different angles, and the envelope curve of the outer edge of the cutter tooth portion 302 of the plurality of stirring blades 3 is spiral. Because the envelope curve of the outward flange of broach portion 302 is the heliciform, greatly promoted the (mixing) shaft when rotatory operation, the stirring and the crushing effect of material have been accelerated along axial extrusion force to the material in the corresponding region of stirring section 102 to further promote stirring and desilting efficiency. As shown in fig. 1, the spiral direction of the first cutter 2 on the guiding section 101 is opposite to the spiral direction of the plurality of cutter tooth parts on the stirring section 102, so that when the shaft body rotates, materials at two ends of the shaft body can be effectively guided to the middle part, and are conveniently sucked and transferred by the pumping system.

Alternatively, in one embodiment, the number of the knife-tooth portions 302 may be an even number, and the even number of the knife-tooth portions 302 are provided in pairs on the connecting portion 301. The paired cutter tooth parts 302 are centrosymmetric, so that the internal extrusion acting force of the material during stirring operation is further enhanced, and the crushing effect of the material is better. In another embodiment, the number of the cutter tooth portions 302 may be odd, and the cutter tooth portions 302 are arranged on the connecting portion 301 at intervals, so that the material is sufficiently stirred by using the turbulent flow on the stirring section, and the crushing effect of the material is better.

In an embodiment, the cutter tooth part 302 rotates around the center line of the circle center of the connecting part 301 and twists around the circumference of the connecting part 301 to form the curved surface section 3021, the end of the curved surface section 3021 forms a slope section 3022, and the height h between the inner edge and the outer edge of the slope section 3022 is greater than the thickness d, so that the circumferential acting area of the cutter tooth part 302 during rotation is larger, tangential shearing force is generated on more materials, and the efficiency of crushing and stirring the materials is further improved.

In another embodiment, the second tool is a helical tool tooth base fixed to the stirring section 102, and the helical tool tooth base is provided with concave portions or convex portions at intervals for stirring the material in the corresponding region of the stirring section 102. Through adopting spiral helicine sword toothholder, and the interval sets up concave part or convex part on the sword toothholder to form sword toothholder structure, thereby stirred the material when having realized carrying out the axial guide to the material in the corresponding region of stirring section 102, realized the effect of broken and stirring material, and the material is gathered together to the middle part by the tip of axle body 1, is convenient for concentrate the suction to the material, reduces piling up of material at axle body 1 tip, in order to improve desilting efficiency.

In one embodiment, the length ratio of the stirring section 102 to the guiding section 101 is 2-4: 1, and by setting a proper length ratio, balance between material stirring and guiding of materials at the end of the shaft body 1 can be realized, and dredging efficiency is improved.

Referring to fig. 3, an embodiment of the present invention further provides a dredging mechanism, which includes a shovel hopper 4, a driving mechanism 11 and at least one stirring shaft according to any one of the foregoing embodiments, the stirring shaft is disposed on the shovel hopper 4, and the driving mechanism corresponds to the stirring shaft and is disposed on the shovel hopper 4 for driving the stirring shaft to rotate. Through 11 drive (mixing) shaft high-speed rotations of actuating mechanism, and then it is rotatory to drive first cutter and second cutter, the realization is to the stirring of 4 open region zone materials of shovel hopper, and through setting up first cutter on the guide section of axle body, through the material guide to the corresponding region of stirring section in the first cutter corresponding region of guide section, the deposit of material at the tip of axle body has been avoided, thereby effectively improved the impaired defect of the operating efficiency that needs artifical the maintenance that leads to that the inside deposit of material leads to, and through set up first cutter on the guide section of axle body can in time guide to the stirring section with the regional material of dead angle, the second cutter through the stirring section stirs the material, be convenient for improve desilting efficiency, improve the desilting quality.

In one embodiment, the shovel hopper 4 includes two mounting plates 401 disposed opposite to each other in the width direction and a baffle 402 disposed at the rear end, and the two mounting plates 401 are connected to the baffle 402 to form a frame structure with an open front end. The mounting plate 401 comprises a guide section 4011, a connecting section 4012 and a necking section 4013 which are sequentially connected from the front end to the rear end of the shovel hopper 4, and the width between the guide sections 4011 of two opposite mounting plates 401 is larger than the width between the necking sections 4013. The quantity of (mixing) shaft is two, and two (mixing) shafts are crisscross to be set up between two mounting panels 401, and the tip that is close to guide section 101 on each (mixing) shaft sets up in the direction section 4011 of corresponding mounting panel 401, and the tip that is close to stirring section 102 on each (mixing) shaft sets up in the throat section 4013 of corresponding mounting panel 401, and actuating mechanism sets up in the throat section 4013 of corresponding mounting panel 401. The driving mechanism drives the two stirring shafts to rotate in the same direction, so that the stirring operation of the materials is realized. In this embodiment, the frame construction that two mounting panels 401 and baffle 402 formed wholly is the front end opening width, and the ladder shape that the rear end reduced for the material gathers together to the region that two throat sections 4013 formed after the stirring of two (mixing) shafts, does benefit to the dead angle that leads to and the inconvenient trouble of maintenance of reduction material piling up inside the shovel hopper, thereby it is long when the extension continuity of operation, promotes desilting efficiency.

Alternatively, the end of the agitator shaft near the guide section 101 is mounted on the guide section 4011 of one mounting plate 401 via a first bearing block 5, and the end of the agitator shaft near the agitator section 102 is mounted on the reducer section 4013 of the other mounting plate 401 via a second bearing block 6. Actuating mechanism 11 can adopt hydraulic motor, and this hydraulic motor corresponds and installs on throat section 4013, and links up the place ahead that section 4012 is located hydraulic motor, has effectively blockked the material, avoids the damage that the material leads to hydraulic motor collision. In other embodiments, the driving mechanism 11 may also employ a motor.

Optionally, the guide section 4011 is provided with an accommodation area for accommodating the first bearing seat 5, the guide section 4011 includes a bearing plate 40113 located on the inner side, a side plate 40112 located on the outer side, and a guide plate 40111 facing the front end, and the bearing plate 40113, the side plate 40112, and the guide plate 40111 surround to form the accommodation area, so as to avoid impact and damage of materials on the first bearing seat 5. Wherein, the deflector 40111 has a predetermined inclination angle to smoothly guide the front material into the shovel hopper 4. The bearing plate 40113 is fixed with the first bearing pedestal 5 through a fastener, and the bearing plate 40113 is parallel to the necking section 4013 of the opposite mounting plate 401, so as to ensure the mounting precision of the stirring shaft.

Optionally, the bearing plate 40113 and the guide plate 40111 are integrally formed, and the side plate 40112, the connecting section 4012 and the necking section 4013 are integrally formed, for example, by bending.

As shown in fig. 3, the respective leading segment 101 of the two stirring shafts is opposite to the corresponding junction segment 4012, and the length of the leading segment 101 is slightly greater than the area of the junction segment 4012, so as to guide the material in the dead angle area between the bearing plate 40113 and the junction segment 4012 to the stirring segment 102, and effectively avoid the accumulation of the material inside the shovel hopper 4.

Optionally, the (mixing) shaft sets up highly being less than the (mixing) shaft and setting up in the height of the throat section 4013 of corresponding mounting panel 401 in the direction section 4011 of the direction of the mounting panel 401 that corresponds for install the (mixing) shaft on shovel hopper 4 and be the gesture that the front end is low, the rear end is high along the advancing direction, do benefit to the material clean up of 4 bottom silts of shovel hopper, improve the desilting quality.

In an embodiment, referring to fig. 4 to 6, a first sealing structure is disposed between the shaft body 1 and the first bearing seat 5 for preventing materials from entering the first bearing seat 5. And a second sealing structure is arranged between the shaft body 1 and the second bearing seat 6 and used for preventing materials from entering the second bearing seat 6. The shaft body 1 is driven by the driving mechanism 11 to rotate along the outward direction of the solid point in the figure, so as to realize the effects of stirring and crushing the materials.

Referring to fig. 5, the end of the shaft body 1 is sleeved with a first wear-resistant sleeve 7 to prevent the shaft body 1 from directly wearing the first bearing seat 5, a first self-aligning roller bearing 14 is disposed in the first bearing seat 5, a cover plate 16 is disposed at the outer end of the first bearing seat 5, and the first sealing structure includes: the first O-shaped ring 9, the first J-shaped dust ring 12, the first Y-shaped sealing ring 13 and the third O-shaped ring 15. The first O-shaped ring 9 is positioned between the shaft body 1 and the first wear-resistant sleeve 7 and used for sealing a contact surface between the shaft body 1 and the first wear-resistant sleeve 7. Set up first J type dust ring 12, first Y type sealing washer 13 between first bearing frame 5 and the first wear-resisting cover 7, and first J type dust ring 12 is close to guide section 101, realizes sealed between first bearing frame 5 and the first wear-resisting cover 7 through first J type dust ring 12 and first Y type sealing washer 13. A third O-ring 15 is located between the end cover 16 and the first bearing block 5 for sealing between the end cover 16 and the first bearing block 5. Through the sealed structure of multilayer, guaranteed the sealed between axle body 1 and the first bearing frame 5, effectively stopped the material and got into the damage to the bearing in the first bearing frame 5 under the exogenic action.

Referring to fig. 6, a second wear-resistant sleeve 8 is sleeved on the other end of the shaft body 1 to prevent the shaft body 1 from being directly worn by the second bearing seat 6, a second self-aligning roller bearing 19 is disposed in the second bearing seat 6, and the outer end of the second bearing seat 6 is connected to a hydraulic motor 11 fixed on the second bearing seat 6 through a fastener. This second seal structure includes: a second O-ring 10, a second J-shaped dust ring 17, a second Y-shaped sealing ring 18 and a fourth O-ring 20. The second O-ring 10 is located between the shaft body 1 and the second wear-resistant sleeve 8, and is used for sealing a contact surface between the shaft body 1 and the second wear-resistant sleeve 8. Set up second J type dust ring 17, second Y type sealing washer 18 between second bearing frame 6 and the wear-resisting cover of second 8, and second J type dust ring 17 is close to stirring section 102, realizes sealing between second bearing frame 6 and the wear-resisting cover of second 8 through second J type dust ring 17 and second Y type sealing washer 18. A fourth O-ring 20 is located between the hydraulic motor 11 and the second bearing housing 6 for sealing between the hydraulic motor 11 and the second bearing housing 6. Optionally, the second bearing seat 6 is provided with an oil inlet 601 for introducing lubricating oil for bearing lubrication and oil sealing. Through the multilayer sealed structure, guaranteed the sealed between axle body 1 and the second bearing frame 6, effectively stopped the material and got into the damage to the bearing in the second bearing frame 6 under the exogenic action.

Referring to fig. 7, the dredging apparatus includes a movable vehicle body 21, a pumping system 22, a delivery pipe 23, and the dredging mechanism according to any one of the embodiments. The movable vehicle body 21 includes a traveling mechanism 2101 and a vehicle body 2102 provided on the traveling mechanism 2101, and the dredging mechanism is connected to the vehicle body 2102. The traveling mechanism 2101 may be a traveling crawler driven by a hydraulic motor to drive the vehicle 2102 and the dredging mechanism thereon to perform dredging operation. A pumping system 22 is disposed on the shovel hopper 4 for pumping the material in the shovel hopper 4 to a delivery pipe 23, and the delivery pipe 23 delivers the material such as sludge to a discharge position.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The dredging mechanism is characterized by comprising a shovel hopper (4), a driving mechanism (11) and at least one stirring shaft, wherein the stirring shaft is arranged on the shovel hopper (4), the driving mechanism (11) corresponds to the stirring shaft and is arranged on the shovel hopper (4) and is used for driving the stirring shaft to rotate, the stirring shaft is arranged on the shovel hopper (4),

the shovel hopper (4) comprises two mounting plates (401) which are oppositely arranged in the width direction and a baffle plate (402) which is positioned at the rear end, and the two mounting plates (401) are connected with the baffle plate (402) to form a frame structure with an opening at the front end;

the mounting plates (401) comprise guide sections (4011), connecting sections (4012) and necking sections (4013) which are sequentially connected from the front end to the rear end of the shovel hopper, and the width between the guide sections (4011) of the two mounting plates (401) is larger than the width between the necking sections (4013);

the stirring shaft comprises: a shaft body (1), the shaft body (1) having a guide section (101) and a stirring section (102) along an axial direction thereof; the quantity of (mixing) shaft is two, two the (mixing) shaft sets up in two crisscross between mounting panel (401), each be close to on the (mixing) shaft the tip of guide section (101) sets up in corresponding guide section (4011) of mounting panel (401), each be close to on the (mixing) shaft the tip of stirring section (102) sets up in corresponding the throat section (4013) of mounting panel (401), actuating mechanism sets up in corresponding the throat section (4013) of mounting panel (401).

2. The desilting mechanism of claim 1, wherein the agitator shaft further comprises:

the first cutter (2) is arranged on the guide section (101) and used for guiding the materials in the corresponding area of the guide section (101) to the corresponding area of the stirring section (102);

the second cutter is arranged on the stirring section (102) and is used for stirring the materials in the corresponding area of the stirring section (102).

3. The dredging mechanism according to claim 2, wherein the second cutter comprises at least two stirring blades (3), the at least two stirring blades (3) are arranged on the stirring section (102) at intervals;

each stirring blade (3) comprises a connecting part (301) and at least one blade tooth part (302), the connecting part (301) is fixedly connected to the stirring section (102), and the blade tooth part (302) is arranged on the connecting part (301).

4. A dredging mechanism as claimed in claim 3, characterized in that the cutter tooth portion (302) has a curved section (3021) rotating and twisting around the connecting portion (301).

5. A dredging mechanism as claimed in claim 3 or 4,

the number of the knife-tooth parts (302) is even, and the even number of the knife-tooth parts (302) are arranged on the connecting part (301) in pairs; alternatively, the first and second electrodes may be,

the number of the knife-tooth parts (302) is odd, and the odd knife-tooth parts (302) are arranged on the connecting part (301) at intervals.

6. The dredging mechanism according to claim 3, wherein the at least two stirring blades (3) are arranged on the stirring section (102) at different angles, and the envelope curve of the outer edge of the knife-toothed part (302) of the at least two stirring blades (3) is helical.

7. The dredging mechanism of claim 2,

the first cutter (2) is spiral and fixedly connected to the guide section (101); and/or the presence of a gas in the gas,

the second cutter is a cutter tooth seat fixedly connected to the stirring section (102), the cutter tooth seat is spiral, and concave parts or convex parts are arranged on the spiral cutter tooth seat at intervals.

8. The dredging mechanism according to claim 1, wherein the stirring shaft is arranged at a height of the corresponding guide section (4011) of the mounting plate (401) lower than a height of the corresponding necking section (4013) of the mounting plate (401).

9. Dredging apparatus, comprising a mobile vehicle body on which a dredging mechanism according to any one of claims 1 to 8 is arranged.