CN116220137A - Hydraulic engineering dredging device and use method thereof - Google Patents

Abstract

The invention discloses a hydraulic engineering dredging device and a use method thereof, wherein the hydraulic engineering dredging device comprises a supporting plate, a driving mechanism, a scattering mechanism, a crushing assembly and a suction assembly; the driving mechanism is arranged on the supporting plate, the breaking mechanism, the crushing assembly and the sucking assembly are arranged on a driving part of the driving mechanism and are adjacently arranged, and the driving mechanism drives the breaking mechanism, the crushing assembly and the sucking assembly to move; the scattering mechanism is used for scattering the sludge, and the suction component is used for sucking the scattered sludge; the crushing assembly is used for crushing inhaled broken stone. This application can break up the silt of river course bottom before absorbing to broken stone in the silt, and then prevent that the sludge pump from damaging, through adjusting high position, and then can satisfy the demand to the desilting of irregular river course bottom, be favorable to improving flexibility and the efficiency that equipment used.

Description

Hydraulic engineering dredging device and use method thereof

Technical Field

The invention belongs to the technical field of hydraulic engineering dredging, and particularly relates to a hydraulic engineering dredging device and a using method thereof.

Background

The hydraulic engineering is used for controlling and allocating surface water and underground water in nature to achieve the aim of removing damage and benefiting, is also called as water engineering, water is an essential precious resource for human production and life, but the naturally existing state of the hydraulic engineering does not completely meet the requirements of human beings, only the hydraulic engineering is constructed to control water flow, prevent flood disasters, regulate and allocate water quantity so as to meet the requirements of people living and production on water resources, and in the process of hydraulic engineering construction, the underwater silt needs to be cleaned so as to build a building, the conventional hydraulic engineering dredging device is easy to block a sewage suction head during dredging, so that dredging work cannot be smoothly carried out, meanwhile, due to the fact that the sludge contains gravels, if the gravels are not treated, blades in a sludge pump are broken, the conventional dredging device is inconvenient to regulate, and due to uneven bottom of a river channel, manual assistance is needed, and dredging efficiency is greatly reduced.

Disclosure of Invention

The invention aims to provide a hydraulic engineering dredging device and a using method thereof for solving the problems, and solves the problems in the background art.

In order to solve the problems, the invention provides a technical scheme that:

the hydraulic engineering dredging device comprises a supporting plate, a driving mechanism, a scattering mechanism, a crushing assembly and a suction assembly; the driving mechanism is arranged on the supporting plate, the breaking mechanism, the crushing assembly and the sucking assembly are arranged on a driving part of the driving mechanism and are adjacently arranged, and the driving mechanism drives the breaking mechanism, the crushing assembly and the sucking assembly to move; the scattering mechanism is used for scattering the sludge, and the suction component is used for sucking the scattered sludge; the crushing assembly is used for crushing inhaled broken stone.

Preferably, the driving mechanism comprises a fixed box, a first motor, a first lead screw, a sliding block, a connecting plate, a mounting box, a second motor, a second lead screw and a moving block;

the top of the supporting plate is fixedly connected with a fixed box, the inside of the fixed box is in sliding connection with a sliding block, the outside of the sliding block is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with an installation box, the inside of the installation box is in sliding connection with a moving block, and the moving block is connected with the scattering mechanism and the suction assembly; the sliding block can move along the vertical direction, and the moving block can move along the horizontal direction;

the fixed box is internally and fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first lead screw, the top end of the first lead screw is rotationally connected with the top of the inner wall of the fixed box, the first lead screw is in threaded connection with the inside of the sliding block, the inside of the sliding block is slidably connected with an auxiliary rod, and the two ends of the auxiliary rod are respectively and fixedly connected with the top and the bottom of the inner wall of the fixed box;

one side fixed connection second motor of installation box inner wall, the output fixed connection second lead screw of second motor, the one end that the second motor was kept away from to the second lead screw is rotated with one side of installation box inner wall and is connected, the inside threaded connection of second lead screw and movable block.

Preferably, the breaking mechanism includes: the device comprises a mounting box, a bottom plate, a fixed rod, a fixed box and a scattering roller;

the bottom fixedly connected with installing box of movable block, the bottom fixed connection bottom plate of installing box, four dead levers of bottom symmetry fixed connection of bottom plate, the fixed box of bottom fixed connection of dead lever, the inside rotation of fixed box is connected with breaks up the roller, the inside of installing box is provided with drive assembly in order to drive break up the roller and rotate.

Preferably, the pulverizing assembly includes: a crushing box, a first crushing roller and a second crushing roller;

the bottom of the fixed box is fixedly connected with a crushing box, and a first crushing roller and a second crushing roller which are arranged in parallel are rotationally connected in the crushing box; the driving assembly also drives the first crushing roller and the second crushing roller to rotate.

Preferably, the driving assembly includes: the device comprises a third motor, a worm, a first gear, a second gear, a first worm wheel, a second worm wheel, a transmission shaft, a driving belt pulley, a sealing box and a driven belt pulley;

one side of the inside of the installation box is fixedly connected with a third motor, the output end of the third motor is fixedly connected with a worm, the worm is meshed with a first worm wheel, the central shaft of the first gear is fixedly connected with the first worm wheel, the central shaft of the second crushing roller is fixedly connected with a first gear, the central shaft of the first crushing roller is fixedly connected with a second gear, the first gear is meshed with the second gear, and the third motor drives the first crushing roller to rotate opposite to the second gear;

the inside rotation of mounting box is connected with the second worm wheel, the meshing is connected between second worm wheel and the worm, the center pin fixedly connected with transmission shaft of second worm wheel, the one end of transmission shaft runs through mounting box and fixedly connected with seal box, the outside fixedly connected with seal box of fixed box, break up the center pin of roller and extend to the inside of seal box and fixedly connected with driven pulley, be connected through belt transmission between driving pulley and the driven pulley.

Preferably, the suction assembly comprises a sludge pump, a sludge discharge pipe, a guide pipe, a sludge suction pipe and a sludge taking bucket, wherein the sludge pump is fixedly connected with the outside of the fixing box, the sludge discharge pipe is fixedly connected with the output end of the sludge pump, the guide pipe is fixedly connected with the input end of the sludge pump, one end of the guide pipe, which is far away from the sludge pump, extends to the inside of the crushing box, the sludge suction pipe is fixedly connected with the inside of the crushing box and one side, which is far away from the guide pipe, of the suction pipe, the sludge taking bucket is fixedly connected with the bottom of the sludge suction pipe, the sludge taking bucket is positioned between the fixing box and the crushing box, and the sludge is sucked into the crushing box by the sludge taking bucket, and is sucked into the crushing box by the guide pipe after crushing crushed stones by the first crushing roller and the second crushing roller.

Preferably, the mud taking hopper is obliquely arranged, one side of the mud taking hopper, which is close to the scattering roller, is lower than one side of the mud taking hopper, which is close to the crushing box, and the bottom of the mud taking hopper is higher than the bottom of the scattering roller.

Preferably, the top of the supporting plate is fixedly connected with an upright post, and a plurality of counterweight plates are detachably connected to the outer part of the upright post.

The invention also provides a use method of the hydraulic engineering dredging device, which comprises the following steps:

s1, placing a supporting plate at the bottom of a river channel, sleeving a counterweight disc outside a stand column, driving a worm to rotate by a third motor, driving a second worm wheel and a transmission shaft to rotate by the worm when rotating, driving a driving belt pulley to rotate by the transmission shaft, driving a driven belt pulley to rotate by the driving belt pulley under the driving of a belt, and at the moment, driving a scattering roller inside a fixed box to rotate by the driven belt pulley, and scattering sludge from the bottom when rotating by the scattering roller;

s2, air in the crushing box is pumped through a sludge pump in cooperation with a sludge discharge pipe and a guide pipe, so that negative pressure is formed in the crushing box, the sludge suction pipe is matched with a sludge taking bucket to suck scattered sludge into the crushing box, the worm rotates to drive a first worm wheel to rotate, the first worm wheel drives a first gear and a second crushing roller to rotate, meanwhile, the first gear drives the second gear and the first crushing roller to rotate, stones in the sludge are crushed when the first crushing roller and the second crushing roller rotate, and then the sludge pump is matched with the sludge discharge pipe and the guide pipe to discharge the sludge and broken stones in the crushing box;

s3, driving a first screw rod to rotate through a first motor, driving a sliding block to lift through a first screw rod matched auxiliary rod, and then moving a fixed box and a crushing box through a matched installation box, so that a scattering roller can always scatter sludge, driving a second screw rod to rotate through a second motor, driving a moving block to slide in the installation box, and further changing the distance between the moving block and a supporting plate.

The beneficial effects of the invention are as follows: can break up the silt of river course bottom before absorbing to break up the rubble in the silt, and then prevent the sludge pump damage, through adjusting the high position, and then can satisfy the demand to the desilting of irregular river course bottom, be favorable to improving flexibility and the efficiency of equipment use. Further, through set up second motor cooperation second lead screw inside the mounting box, can adjust the position of fixed box and crushing case, and then can satisfy the progress of desilting, simultaneously, can drive through drive assembly and break up roller and first crushing roller and second crushing roller and rotate, and then can break up the silt of river course bottom before the absorption, and break up the rubble in the silt through first crushing roller cooperation second crushing roller, and then prevent the sludge pump damage, can adjust the height of fixed box through first lead screw of first motor cooperation, and then can satisfy the demand to the desilting of irregular river course bottom, be favorable to improving flexibility and the efficiency that equipment used.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic cross-sectional view of the overall structure of a hydraulic engineering dredging device according to an embodiment of the invention;

FIG. 2 is an enlarged view of a portion of the hydraulic engineering dredging apparatus of FIG. 1 according to the invention;

FIG. 3 is an enlarged view of the invention at A in FIG. 2;

fig. 4 is an enlarged view of the present invention at B in fig. 2.

In the figure: 1. a supporting plate; 2. a column; 3. a weight plate; 4. a fixed box; 5. a first motor; 6. a first lead screw; 7. a slide block; 8. a connecting plate; 9. a mounting box; 10. a second motor; 11. a second lead screw; 12. a moving block; 13. a mounting box; 14. a bottom plate; 15. a fixed rod; 16. a fixed box; 17. a break-up roller; 18. a crushing box; 19. a first pulverizing roller; 20. a second pulverizing roller; 21. a suction assembly; 211. a sludge pump; 212. a mud pipe; 213. a conduit; 214. a suction pipe; 215. taking a mud bucket; 22. a drive assembly; 221. a third motor; 222. a worm; 223. a first gear; 224. a second gear; 225. a first worm wheel; 226. a second worm wheel; 227. a transmission shaft; 228. a driving pulley; 229. a seal box; 2210. a driven pulley; 23. an auxiliary rod.

The specific embodiment is as follows:

in the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance in the description of embodiments of the present invention, it being noted that the terms "connected," "coupled," or "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, unless otherwise expressly so stated or defined; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.

In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description herein, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and in this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example, and the particular feature, structure, material, or characteristic described may be combined in any one or more embodiments or examples in a suitable manner, and further, different embodiments or examples and features of different embodiments or examples described in this specification may be combined and combined by those skilled in the art without contradiction.

Example 1:

referring to fig. 1-4, an embodiment of the present invention provides a hydraulic engineering dredging device, which includes a supporting plate 1, a driving mechanism, a scattering mechanism, a crushing assembly and a suction assembly 21; the driving mechanism is arranged on the supporting plate 1, the breaking mechanism, the crushing assembly and the sucking assembly 21 are arranged on a driving part of the driving mechanism and are adjacently arranged, and the driving mechanism drives the breaking mechanism, the crushing assembly and the sucking assembly 21 to move; the scattering mechanism is used for scattering the sludge, and the suction component 21 is used for sucking the scattered sludge; the crushing assembly is used for crushing inhaled broken stone.

The driving mechanism comprises a fixed box 4, a first motor 5, a first lead screw 6, a sliding block 7, a connecting plate 8, a mounting box 9, a second motor 10, a second lead screw 11 and a moving block 12;

the top of the supporting plate 1 is fixedly connected with a fixed box 4, the inside of the fixed box 4 is in sliding connection with a sliding block 7, the outside of the sliding block 7 is fixedly connected with a connecting plate 8, one side of the connecting plate 8 is fixedly connected with an installation box 9, the inside of the installation box 9 is in sliding connection with a moving block 12, and the moving block 12 is connected with the scattering mechanism and the suction assembly 21; the slide block 7 is movable in a vertical direction, and the moving block 12 is movable in a horizontal direction;

the fixed box 4 is internally and fixedly connected with a first motor 5, the output end of the first motor 5 is fixedly connected with a first lead screw 6, the top end of the first lead screw 6 is rotationally connected with the top of the inner wall of the fixed box 4, the first lead screw 6 is in threaded connection with the inside of the sliding block 7, the inside of the sliding block 7 is slidably connected with an auxiliary rod 23, and two ends of the auxiliary rod 23 are respectively and fixedly connected with the top and the bottom of the inner wall of the fixed box 4;

one side fixed connection second motor 10 of mounting box 9 inner wall, the output fixed connection second lead screw 11 of second motor 10, the one end that second lead screw 11 kept away from second motor 10 rotates with one side of mounting box 9 inner wall to be connected, the inside threaded connection of second lead screw 11 and movable block 12.

The driving mechanism can meet the requirement of dredging the bottom of an irregular river channel by driving the driving mechanism to vertically and transversely move, and can conveniently clear the sludge at different positions.

The breaking mechanism comprises: mounting box 13, bottom plate 14, fixed rod 15, fixed box 16, break-up roller 17;

the bottom fixedly connected with install bin 13 of movable block 12, the bottom fixed connection bottom plate 14 of install bin 13, four dead levers 15 of bottom symmetry fixed connection of bottom plate 14, the bottom fixed connection fixed box 16 of dead lever 15, the inside rotation of fixed box 16 is connected and is broken up roller 17, the inside of install bin 13 is provided with drive assembly 22 in order to drive break up roller 17 rotation.

The scattering mechanism can scatter the sludge at the bottom of the river channel before being sucked by the scattering roller 17.

The comminution assembly includes: a pulverizing box 18, a first pulverizing roller 19, a second pulverizing roller 20;

the bottom of the fixed box 16 is fixedly connected with a crushing box 18, and a first crushing roller 19 and a second crushing roller 20 which are arranged in parallel are rotationally connected in the crushing box 18; the driving assembly 22 also drives the first crushing roller 19 and the second crushing roller 20 to rotate.

The crushing assembly can crush broken stone, and the damage of the machine wheel of the sludge pump 211 can be avoided.

The drive assembly 22 includes: a third motor 221, a worm 222, a first gear 223, a second gear 224, a first worm wheel 225, a second worm wheel 226, a drive shaft 227, a driving pulley 228, a seal box 229, and a driven pulley 2210;

a third motor 221 is fixedly connected to one side inside the installation box 13, an output end of the third motor 221 is fixedly connected with a worm 222, the worm 222 is meshed with a first worm gear 225, a central shaft of the first gear 223 is fixedly connected with the first worm gear 225, a central shaft of the second crushing roller 20 is fixedly connected with the first gear 223, a central shaft of the first crushing roller 19 is fixedly connected with a second gear 224, the first gear 223 is meshed with the second gear 224, and the third motor 221 drives the first crushing roller 19 and the second gear 224 to rotate in opposite directions;

the inside rotation of mounting box 13 is connected with second worm wheel 226, the meshing is connected between second worm wheel 226 and the worm 222, the center pin fixedly connected with transmission shaft 227 of second worm wheel 226, the one end of transmission shaft 227 runs through mounting box 13 and fixedly connected with seal box 229, the outside fixedly connected with seal box 229 of fixed box 16, the center pin of break up roller 17 extends to the inside of seal box 229 and fixedly connected with driven pulley 2210, pass through belt transmission connection between driving pulley 228 and the driven pulley 2210.

The specific driving relationship between the worm 222 and the first gear 223 is:

the worm 222 is engaged with the first worm gear 225, the axis of the worm 222 is perpendicular to the axis of the first worm gear 225, and the transmission direction of the worm gear is perpendicular, so that the first worm gear 225 and the first gear 223 are parallel, the central axis of the first gear 223 can be fixedly connected with the axis of the first worm gear 225, and the first gear 223 can be driven to rotate when the worm 222 drives the first worm gear 225 to rotate.

The driving assembly 22 drives the breaking roller 17, the first crushing roller 19 and the second crushing roller 20 to rotate simultaneously through the third motor 221, so that space occupation and cost are reduced.

The suction assembly 21 comprises a sludge pump 211, a sludge discharge pipe 212, a guide pipe 213, a sludge suction pipe 214 and a sludge taking bucket 215, wherein the sludge pump 211 is fixedly connected to the outside of the fixed box 4, the sludge discharge pipe 212 is fixedly connected to the output end of the sludge pump 211, the guide pipe 213 is fixedly connected to the input end of the sludge pump 211, one end of the guide pipe 213, far away from the sludge pump 211, extends to the inside of the crushing box 18, the sludge suction pipe 214 is fixedly connected to the inside of the crushing box 18 and one side, far away from the guide pipe 213, of the guide pipe 213, the sludge taking bucket 215 is fixedly connected to the bottom of the sludge taking pipe 214, the sludge taking bucket 215 is positioned between the fixed box 16 and the crushing box 18, and the sludge pump 211 sucks sludge into the crushing box 18 through the sludge taking bucket 215, crushes crushed stone through the first crushing roller 19 and the second crushing roller 20, and then sucks the crushed stone through the guide pipe 213.

The mud taking hopper 215 is obliquely arranged, one side of the mud taking hopper 215 close to the scattering roller 17 is lower than one side of the mud taking hopper 215 close to the crushing box 18, and the bottom of the mud taking hopper 215 is higher than the bottom of the scattering roller 17.

The top fixedly connected with stand 2 of layer board 1, the outside of stand 2 can be dismantled and be connected with a plurality of balance weight dish 3.

Example 2:

the application method of the hydraulic engineering dredging device comprises the following steps:

s1, placing a supporting plate 1 at the bottom of a river channel, sleeving a counterweight disc 3 outside a column 2, driving a worm 222 to rotate by a third motor 221, driving a second worm wheel 226 and a transmission shaft 227 to rotate by the worm 222 when rotating, driving a driving belt pulley 228 to rotate by the transmission shaft 227, driving a driven belt pulley 2210 to rotate by the driving belt pulley 228 under the driving of the belt, and driving a scattering roller 17 in a fixed box 16 to rotate by the driven belt pulley 2210, and scattering sludge at the bottom of the scattering roller 17 when rotating;

s2, air in the crushing box 18 is pumped through the sludge pump 211 in combination with the sludge discharge pipe 212 and the guide pipe 213, so that negative pressure is formed in the crushing box 18, the sludge suction pipe 214 is in combination with the sludge taking bucket 215 to suck the scattered sludge into the crushing box 18, the worm 222 rotates to drive the first worm wheel 225 to rotate, the first worm wheel 225 drives the first gear 223 and the second crushing roller 20 to rotate, meanwhile, the first gear 223 drives the second gear 224 and the first crushing roller 19 to rotate, the first crushing roller 19 and the second crushing roller 20 crush stones in the sludge during rotation, and then the sludge pump 211 is in combination with the sludge discharge pipe 212 and the guide pipe 213 to discharge the sludge and the crushed stones in the crushing box 18;

s3, the first lead screw 6 is driven to rotate through the first motor 5, the first lead screw 6 is matched with the auxiliary rod 23 to drive the sliding block 7 to lift, and then the fixed box 16 and the crushing box 18 are driven to move through the matching of the installation box 9, so that the scattering roller 17 can always scatter sludge, the second lead screw 11 is driven to rotate through the second motor 10, the second lead screw 11 drives the moving block 12 to slide in the installation box 9, and then the distance between the moving block and the supporting plate 1 can be changed.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The hydraulic engineering dredging device is characterized by comprising a supporting plate (1), a driving mechanism, a scattering mechanism, a crushing assembly and a suction assembly (21); the driving mechanism is arranged on the supporting plate (1), the scattering mechanism, the crushing assembly and the sucking assembly (21) are arranged on a driving part of the driving mechanism and are adjacently arranged, and the driving mechanism drives the scattering mechanism, the crushing assembly and the sucking assembly (21) to move; the scattering mechanism is used for scattering the sludge, and the suction component (21) is used for sucking the scattered sludge; the crushing assembly is used for crushing inhaled broken stone.

2. The hydraulic engineering dredging device according to claim 1, wherein the driving mechanism comprises a fixed box (4), a first motor (5), a first screw (6), a sliding block (7), a connecting plate (8), a mounting box (9), a second motor (10), a second screw (11) and a moving block (12);

the top of the supporting plate (1) is fixedly connected with a fixed box (4), the inside of the fixed box (4) is connected with a sliding block (7) in a sliding manner, the outside of the sliding block (7) is fixedly connected with a connecting plate (8), one side of the connecting plate (8) is fixedly connected with an installation box (9), the inside of the installation box (9) is connected with a moving block (12) in a sliding manner, and the moving block (12) is connected with the scattering mechanism and the sucking component (21); the sliding block (7) can move along the vertical direction, and the moving block (12) can move along the horizontal direction;

the fixing box is characterized in that a first motor (5) is fixedly connected in the fixing box (4), the output end of the first motor (5) is fixedly connected with a first lead screw (6), the top end of the first lead screw (6) is rotationally connected with the top of the inner wall of the fixing box (4), the first lead screw (6) is in threaded connection with the inside of a sliding block (7), an auxiliary rod (23) is slidably connected in the sliding block (7), and two ends of the auxiliary rod (23) are fixedly connected with the top and the bottom of the inner wall of the fixing box (4) respectively;

one side fixed connection second motor (10) of mounting box (9) inner wall, the output fixed connection second lead screw (11) of second motor (10), one end that second motor (10) were kept away from to second lead screw (11) rotates with one side of mounting box (9) inner wall to be connected, the inside threaded connection of second lead screw (11) and movable block (12).

3. The hydraulic engineering dredging apparatus according to claim 2, wherein the scattering mechanism comprises: the device comprises a mounting box (13), a bottom plate (14), a fixed rod (15), a fixed box (16) and a scattering roller (17);

the bottom fixedly connected with install bin (13) of movable block (12), the bottom fixed connection bottom plate (14) of install bin (13), four dead levers (15) of bottom symmetry fixed connection of bottom plate (14), the bottom fixed connection dead lever (16) of dead lever (15), the inside rotation of dead lever (16) is connected and is broken up roller (17), the inside of install bin (13) is provided with drive assembly (22) in order to drive break up roller (17) rotation.

4. A hydraulic engineering dredging apparatus according to claim 3, wherein the comminution assembly comprises: a crushing box (18), a first crushing roller (19) and a second crushing roller (20);

the bottom of the fixed box (16) is fixedly connected with a crushing box (18), and a first crushing roller (19) and a second crushing roller (20) which are arranged in parallel are rotationally connected in the crushing box (18); the driving assembly (22) also drives the first crushing roller (19) and the second crushing roller (20) to rotate.

5. Hydraulic engineering dredging arrangement according to claim 4, wherein the drive assembly (22) comprises: a third motor (221), a worm (222), a first gear (223), a second gear (224), a first worm wheel (225), a second worm wheel (226), a transmission shaft (227), a driving pulley (228), a seal box (229), and a driven pulley (2210);

one side of the inside of the installation box (13) is fixedly connected with a third motor (221), the output end of the third motor (221) is fixedly connected with a worm (222), the worm (222) is meshed with a first worm wheel (225), the central shaft of the first gear (223) is fixedly connected with the first worm wheel (225), the central shaft of the second crushing roller (20) is fixedly connected with the first gear (223), the central shaft of the first crushing roller (19) is fixedly connected with a second gear (224), the first gear (223) is meshed with the second gear (224), and the third motor (221) drives the first crushing roller (19) to rotate in opposite directions with the second gear (224);

the inside rotation of install bin (13) is connected with second worm wheel (226), meshing connection between second worm wheel (226) and worm (222), center pin fixedly connected with transmission shaft (227) of second worm wheel (226), the one end of transmission shaft (227) runs through install bin (13) and fixedly connected with seal box (229), the outside fixedly connected with seal box (229) of fixed box (16), the center pin of breaking up roller (17) extends to the inside and fixedly connected with driven pulley (2210) of seal box (229), be connected through belt transmission between driving pulley (228) and driven pulley (2210).

6. The hydraulic engineering dredging device according to claim 5, wherein the suction assembly (21) comprises a sludge pump (211), a sludge discharge pipe (212), a guide pipe (213), a sludge suction pipe (214) and a sludge taking bucket (215), the sludge pump (211) is fixedly connected to the outside of the fixed box (4), the sludge discharge pipe (212) is fixedly connected to the output end of the sludge pump (211), the guide pipe (213) is fixedly connected to the input end of the sludge pump (211), one end of the guide pipe (213) far away from the sludge pump (211) extends to the inside of the crushing box (18), the sludge suction pipe (214) is fixedly connected to the inside of the crushing box (18) and one side far away from the guide pipe (213), the sludge taking bucket (215) is fixedly connected to the bottom of the sludge suction pipe (214), and the sludge taking bucket (215) is located between the fixed box (16) and the crushing box (18), and the sludge pump (211) sucks the sludge from the sludge taking bucket (215) into the crushing box (18) and sucks the sludge into the crushing box (19) through the first crushing roller (19) and the second crushing roller (20).

7. The hydraulic engineering dredging device according to claim 6, wherein the sludge taking hopper (215) is obliquely arranged, one side of the sludge taking hopper (215) close to the breaking roller (17) is lower than one side close to the breaking box (18), and the bottom of the sludge taking hopper (215) is higher than the bottom of the breaking roller (17).

8. The hydraulic engineering dredging device according to claim 1, wherein the top of the supporting plate (1) is fixedly connected with a stand column (2), and a plurality of counterweight plates (3) are detachably connected to the outside of the stand column (2).

9. The method of using a hydraulic engineering dredging apparatus according to claim 8, comprising the steps of:

s1, placing a supporting plate (1) at the bottom of a river channel, sleeving a counterweight disc (3) outside a stand column (2), driving a worm (222) to rotate by a third motor (221), driving a second worm wheel (226) and a transmission shaft (227) to rotate by the worm (222) when rotating, driving a driving belt wheel (228) to rotate by the transmission shaft (227), driving a driven belt wheel (2210) to rotate by the driving belt wheel (228) under the driving of the belt, and driving a scattering roller (17) in a fixed box (16) to rotate by the driven belt wheel (2210), wherein the scattering roller (17) breaks up sludge at the bottom when rotating;

s2, the sludge pump (211) is matched with the sludge discharge pipe (212) and the guide pipe (213) to pump air in the crushing box (18), so that negative pressure is formed in the crushing box (18), the sludge suction pipe (214) is matched with the sludge taking hopper (215) to suck scattered sludge into the crushing box (18), the worm (222) drives the first worm wheel (225) to rotate when rotating, the first worm wheel (225) drives the first gear (223) and the second crushing roller (20) to rotate, meanwhile, the first gear (223) drives the second gear (224) and the first crushing roller (19) to rotate, the first crushing roller (19) and the second crushing roller (20) crush stones in the sludge when rotating, and then the sludge pump (211) is matched with the sludge discharge pipe (212) and the guide pipe (213) to discharge the sludge and broken stones in the crushing box (18);

s3, drive first lead screw (6) through first motor (5) and rotate, first lead screw (6) cooperation auxiliary rod (23) drive slider (7) go up and down, and then can cooperate mounting box (9) to drive fixed case (16) and smash case (18) and remove, thereby make break up roller (17) and break up silt all the time, drive second lead screw (11) through second motor (10) and rotate, second lead screw (11) drive movable block (12) slide in the inside of mounting box (9), and then can change the distance between it and layer board (1).

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