CN219825419U

CN219825419U - Hydraulic engineering dredging device

Info

Publication number: CN219825419U
Application number: CN202320512827.5U
Authority: CN
Inventors: 朱思羽; 岳志闯; 韩萌; 张磊; 冯文甫
Original assignee: Tianjin Water Conservancy Engineering Group Co ltd
Current assignee: Tianjin Water Conservancy Engineering Group Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-10-13
Anticipated expiration: 2033-03-16

Abstract

The utility model provides a hydraulic engineering dredging device, which comprises: the grab bucket assembly comprises a bracket, a separating bucket and a turnover bucket which are rotatably connected with the bracket, and a containing cavity for containing sludge is formed between the separating bucket and the turnover bucket; the conveying assembly is used for conveying the sludge in the accommodating cavity; the grab bucket driving assembly is used for moving the position of the grab bucket assembly; and the separation assembly is arranged on the inner side of the separation hopper and is used for separating particles in the sludge and storing the particles in the separation hopper. The utility model has the beneficial effects that: through the setting of separating element, make great granule such as stone separate and collect temporarily store in the separation fill, silt then can be carried to silt collecting vat through conveying element, is applicable to the silt that clear away the submarine mix has the gravel stone to can keep in to big granule such as stone, reduce the time loss that numerous times goes up and down and bring, improved desilting is efficient.

Description

Hydraulic engineering dredging device

Technical Field

The utility model belongs to the technical field of hydraulic engineering dredging, and particularly relates to a hydraulic engineering dredging device.

Background

The hydraulic engineering is a built engineering for controlling and allocating surface water and underground water in nature to achieve the aim of removing harm and benefiting. The hydraulic engineering is built, the water flow can be controlled, the flood disasters are prevented, and the water quantity is regulated and distributed so as to meet the needs of people living and production on water resources. Hydraulic engineering needs to build different types of hydraulic structures such as dams, dykes, spillways, sluice gates, water inlets, channels, raft grooves, raft ways, fishways and the like so as to achieve the aim. In hydraulic construction, sludge accumulation is always a problem which needs to be focused, and the sludge accumulation can cause the functional reduction of the hydraulic construction and even influence the strength of the hydraulic construction so as to cause potential safety hazards.

The existing dredging device comprises the following two modes, firstly, pumping water bottom sludge by using a slurry pump, and the operation mode is not suitable for an operation environment in which the sludge exists in stones; secondly, the grab bucket is used for grabbing the underwater silt and the underwater silt is placed in the shore or the collecting tank, and the operation mode can be suitable for an operation environment in which the silt exists in stones, but the working efficiency is reduced due to frequent grabbing and lifting.

Disclosure of Invention

In view of the above, the present utility model is directed to a hydraulic engineering dredging device for solving at least one of the above technical problems.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a hydraulic engineering dredging device, comprising:

the grab bucket assembly comprises a bracket, a separating bucket and a turnover bucket which are rotatably connected with the bracket, and a containing cavity for containing sludge is formed between the separating bucket and the turnover bucket;

a conveying assembly for conveying the sludge in the accommodation chamber;

a grapple drive assembly for moving the position of the grapple assembly;

and the separation assembly is arranged on the inner side of the separation hopper and is used for separating particles in the sludge and storing the particles in the separation hopper.

Further, the grab bucket driving assembly comprises a ship body and a supporting arm fixedly connected with the ship body, a pulley is arranged at the upper end of the supporting arm, a winch is fixedly arranged on the ship body, a steel wire rope of the winch is wound on the outer side of the pulley and is fixedly connected with the bracket, and a sludge accommodating groove corresponding to the outlet of the conveying assembly is formed in the ship body;

the conveying assembly comprises a cylinder body and a spiral rotating shaft arranged on the inner side of the cylinder body, a motor is correspondingly arranged on the spiral rotating shaft, a shell of the motor is fixedly connected with the cylinder body, and an output shaft of the motor is fixedly connected with the spiral rotating shaft.

Further, a first hydraulic cylinder for driving the separating hopper to rotate is correspondingly arranged on the support, a shell of the first hydraulic cylinder is hinged with the support, and an output shaft of the first hydraulic cylinder is hinged with the separating hopper;

the support is correspondingly provided with a second hydraulic cylinder for driving the overturning bucket to rotate, a shell of the second hydraulic cylinder is hinged with the support, and an output shaft of the second hydraulic cylinder is hinged with the overturning bucket.

Further, the side wall of the separating hopper is provided with a communication port corresponding to the inlet of the conveying assembly, the communication port is correspondingly provided with a sealing plate, the sealing plate is in sliding fit with the separating hopper, the communication port is sealed under the action of gravity, and a boss corresponding to the conveying assembly is fixedly arranged on the sealing plate.

Further, the separation assembly comprises a collection cover and a plurality of driving rollers, the collection cover is provided with a through hole, the collection cover is arranged on the inner side of the separation hopper and is positioned above the communication port, the driving rollers are rotationally connected with the separation hopper, the number of the driving rollers is multiple, the driving rollers are sequentially lifted along the installation position from the opening of the separation hopper to the direction of the collection cover, and the driving rollers are correspondingly provided with driving motors for driving the driving rollers to rotate;

the collecting cover is provided with a pressure sensor.

Further, a plurality of blades are fixedly arranged on the outer surface of the driving roller, the blades are eccentrically arranged with the driving roller, the blades incline in the rotation direction of the driving roller, the front edge of each blade is provided with a blade, and the blades of two adjacent driving rollers are staggered in the axial direction.

Further, the driving rollers comprise a first driving roller and a second driving roller, the first driving roller and the second driving roller are sequentially arranged at intervals, the number of the driving rollers is one more than that of the second driving roller, and the axis connecting line of two adjacent first driving rollers is higher than the axis of the second driving roller between the two adjacent first driving rollers;

the driving motor is characterized in that a driving gear is fixedly arranged on an output shaft of the driving motor, a first gear is fixedly arranged on one driving roller I, a second gear is fixedly arranged on one driving roller II, the second gear and the first gear are meshed with the driving gear, and the outer diameter of the first gear is smaller than that of the second gear;

the first driving rollers are respectively provided with a synchronous belt pulley, and the first driving rollers realize synchronous rotation through synchronous belts;

and the second driving rollers are respectively provided with a synchronous belt wheel, and the second driving rollers synchronously rotate through synchronous belts.

Further, the inlet end of the conveying component is fixedly provided with a guide component, the guide component comprises a guide slide plate and vertical plates fixedly arranged on two sides of the guide slide plate, the guide slide plate is matched with the side wall of the separating hopper at the communicating port, the guide slide plate and the two vertical plates form a guide chute, the separating hopper is fixedly provided with a guide block matched with the guide chute, and the feeding port of the conveying component corresponds to the communicating port;

the guide assembly is detachably connected with the separating hopper through the limiting assembly.

Further, the limiting assembly comprises a lock cylinder and a compression spring, a limiting groove is formed in the guide sliding plate, the opening of the limiting groove corresponds to a limiting hole, and the diameter of the limiting hole is smaller than that of the limiting groove;

the separating hopper is provided with a mounting groove corresponding to the limit groove, the lock cylinder is fixedly connected with the sliding block, the sliding block is mounted on the inner side of the mounting groove, and a compression spring is arranged between the sliding block and the bottom end of the mounting groove;

the lock cylinder comprises a limiting part, a connecting part and a mounting part which are sequentially connected, the diameter of the mounting part is larger than that of the limiting hole, the length of the connecting part is matched with the depth of the limiting hole, and a boss with a triangular cross section is arranged on the end surface of the limiting part far away from the side opening;

and a shielding type photoelectric sensor is arranged on the lower end face of the mounting part.

Further, the separating hopper is provided with a side opening and an upper opening, the overturning hopper is provided with a side opening and an upper opening, and when the side opening of the overturning hopper is overlapped with the side opening of the separating hopper, a containing cavity for containing sludge is formed between the separating hopper and the overturning hopper;

the front end of the side opening of the overturning bucket is fixedly provided with a plurality of soil breaking teeth, the soil breaking teeth protrude out of the overturning bucket, the soil breaking teeth are provided with vent holes, and the vent holes are communicated with air supply equipment.

Compared with the prior art, the hydraulic engineering dredging device has the following beneficial effects:

(1) According to the hydraulic engineering dredging device, larger particles such as stones can be separated and collected and temporarily stored in the separating hopper through the arrangement of the separating assembly, the silt can be conveyed to the silt collecting tank through the conveying assembly, the hydraulic engineering dredging device is suitable for removing the silt mixed with gravel stones at the water bottom, large particles such as stones can be temporarily stored, after the large particles are to be collected to a certain quantity, the grab bucket assembly can be driven to move up and down and be poured out through the grab bucket driving mechanism, time loss caused by repeated lifting is reduced, and dredging efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic perspective view of a device according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a device according to an embodiment of the present utility model;

fig. 3 is a schematic cross-sectional view of a limiting assembly according to an embodiment of the utility model.

Reference numerals illustrate:

1. a cylinder; 2. a grapple drive assembly; 3. a separating hopper; 4. a flip bucket; 5. a guide slide plate; 101. a feed inlet; 21. a bracket; 31. a first driving roller; 32. a second driving roller; 33. a rotating shaft; 34. a collection cover; 35. a blade; 36. a slide block; 371. a limit part; 372. a connection part; 373. a mounting part; 361. a compression spring; 51. a limit groove; 511. a limiting hole; 38. breaking the earth teeth; 331. a drive gear; 311. a first gear; 321. a second gear; 381. a vent hole; 37. a lock cylinder.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood 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 present utility model and simplifying the description, and do not indicate or imply that the devices 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 present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 3, a hydraulic engineering dredging apparatus includes:

the grab bucket assembly comprises a bracket 21, a separating bucket 3 and a turnover bucket 4 which are rotatably connected with the bracket 21, and a containing cavity for containing sludge is formed between the separating bucket 3 and the turnover bucket 4;

the conveying assembly is used for conveying the sludge in the accommodating cavity;

a grapple drive assembly 2, the grapple drive assembly 2 being for moving the position of the grapple assembly;

and the separation assembly is arranged on the inner side of the separation bucket 3 and is used for separating particles in the sludge and storing the particles in the separation bucket 3.

The grab bucket driving assembly 2 comprises a ship body and a supporting arm fixedly connected with the ship body, wherein a pulley is arranged at the upper end of the supporting arm, a winch is fixedly arranged on the ship body, a steel wire rope of the winch is wound on the outer side of the pulley and is fixedly connected with the bracket 21, and a sludge accommodating groove corresponding to the outlet of the conveying assembly is formed in the ship body;

the conveying assembly comprises a cylinder body 1 and a spiral rotating shaft 33 arranged on the inner side of the cylinder body 1, a motor is correspondingly arranged on the spiral rotating shaft 33, a shell of the motor is fixedly connected with the cylinder body 1, and an output shaft of the motor is fixedly connected with the spiral rotating shaft 33.

The support 21 is correspondingly provided with a first hydraulic cylinder for driving the separating hopper 3 to rotate, a shell of the first hydraulic cylinder is hinged with the support 21, and an output shaft of the first hydraulic cylinder is hinged with the separating hopper 3;

the support 21 is correspondingly provided with a second hydraulic cylinder for driving the overturning bucket 4 to rotate, a shell of the second hydraulic cylinder is hinged with the support 21, and an output shaft of the second hydraulic cylinder is hinged with the overturning bucket 4.

The side wall of the separating hopper 3 is provided with a communication port corresponding to the inlet of the conveying assembly, the communication port is correspondingly provided with a sealing plate, the sealing plate is in sliding fit with the separating hopper 3, the communication port is sealed by the sealing plate under the action of gravity, and a boss corresponding to the conveying assembly is fixedly arranged on the sealing plate.

The separating assembly comprises a collecting cover 34 and a plurality of driving rollers, wherein a through hole is formed in the collecting cover 34, the collecting cover 34 is arranged on the inner side of the separating hopper 3 and is positioned above the communication port, the driving rollers are rotationally connected with the separating hopper 3, the number of the driving rollers is multiple, the plurality of driving rollers are sequentially lifted along the installation position from the opening of the separating hopper 3 to the direction of the collecting cover 34, and the driving rollers are correspondingly provided with driving motors for driving the driving rollers to rotate;

the collecting cover 34 is provided with a pressure sensor, and when the pressure sensor senses that the pressure value exceeds the set pressure value, a claw closing signal is generated to the grab bucket driving mechanism so that the separating bucket 3 and the overturning bucket 4 are lifted after being spliced.

All set firmly a plurality of blades 35 on the surface of driving roller, blade 35 and driving roller eccentric setting, and the rotation direction of blade 35 slant driving roller, the front edge of blade 35 possesses the blade, and the blade 35 of two adjacent driving rollers is crisscross the setting in the axial, can also cut and refine the harder silt of texture in the transportation of being convenient for.

The driving rollers comprise first driving rollers 31 and second driving rollers 32, the first driving rollers 31 and the second driving rollers 32 are sequentially arranged at intervals, the number of the first driving rollers 31 is one more than that of the second driving rollers 32, and the axis connecting line of two adjacent first driving rollers 31 is higher than the axis of the second driving rollers 32 between the two adjacent first driving rollers 31;

the driving gear 331 is fixedly arranged on the output shaft of the driving motor, the first gear 311 is fixedly arranged on one of the first driving rollers 31, the second gear 321 is fixedly arranged on one of the second driving rollers 32, the second gear 321 and the first gear 311 are meshed with the driving gear 331, and the outer diameter of the first gear 311 is smaller than that of the second gear 321;

the first driving rollers 31 are respectively provided with a synchronous pulley, and the first driving rollers 31 realize synchronous rotation through synchronous belts;

and the second driving rollers 32 are respectively provided with a synchronous pulley, and the second driving rollers 32 realize synchronous rotation through synchronous belts. The cutting refinement effect is better due to the position relation and different rotation speeds between the driving roller II 32 and the driving roller I31.

The inlet end of the conveying component is fixedly provided with a guide component, the guide component comprises a guide slide plate 5 and vertical plates fixedly arranged on two sides of the guide slide plate 5, the guide slide plate 5 is matched with the side wall of the separating hopper 3 at the communicating port, the guide slide plate 5 and the two vertical plates form a guide chute, the separating hopper 3 is fixedly provided with a guide block matched with the guide chute, and the feeding port 101 of the conveying component corresponds to the communicating port;

the guide component is detachably connected with the separating hopper 3 through the limiting component.

As shown in fig. 3, the limiting assembly comprises a lock cylinder 37 and a compression spring 361, a limiting groove 51 is formed in the guide sliding plate 5, the opening of the limiting groove 51 corresponds to a limiting hole 511, and the diameter of the limiting hole 511 is smaller than that of the limiting groove 51;

the separating hopper 3 is provided with a mounting groove corresponding to the limit groove 51, the lock cylinder 37 is fixedly connected with the sliding block 36, the sliding block 36 is arranged on the inner side of the mounting groove, and a compression spring 361 is arranged between the sliding block 36 and the bottom end of the mounting groove;

the lock cylinder 37 comprises a limit part 371, a connecting part 372 and a mounting part 373 which are sequentially connected, the diameter of the mounting part 373 is larger than that of the limit hole 511, the length of the connecting part 372 is matched with the depth of the limit hole 511, and a boss with a triangular cross section is arranged on the end surface of the limit part 371 far away from the side opening;

the boss includes protruding face and lower protruding face, and when the separation was fought 3 to rise, the lock core 37 upward movement took place relative movement with spacing hole 511, makes lock core 37 break away from spacing hole 511, and when the separation was fought 3 to descend, when lock core 37 was close to spacing groove 51, spacing hole 511 can slide with lower protruding face relatively so that lock core 37 gets into in the spacing groove 51.

A shielding type photoelectric sensor is provided on the lower end surface of the mounting portion 373. The photoelectric sensor is used for judging whether the locking assembly is locked or not, or whether the locking assembly is separated from the photoelectric sensor in the using process is judged, so that the problem can be eliminated in time.

The separating hopper 3 is provided with a side opening and an upper opening, the overturning hopper 4 is provided with a side opening and an upper opening, and when the side opening of the overturning hopper 4 is overlapped with the side opening of the separating hopper 3, a containing cavity for containing sludge is formed between the separating hopper 3 and the overturning hopper 4; the front end of the side opening of the overturning bucket 4 is fixedly provided with a plurality of breaking teeth 38, the breaking teeth 38 are protruded out of the overturning bucket 4, and vent holes 381 are formed in the breaking teeth 38 and are communicated with air supply equipment. The dredging is performed during the movement of the hull, and the air vents on the ground breaking teeth 38 are used for assisting in dredging and primary flushing of harder sludge and stones.

The working process comprises the following steps:

when the scheme is implemented, the large particles such as stones can be separated and collected and temporarily stored in the separating hopper 3 through the arrangement of the separating assembly, the silt can be conveyed to the silt collecting tank through the conveying assembly, the device is suitable for removing the silt mixed with gravel stones at the water bottom, the large particles such as stones can be temporarily stored, the grab bucket assembly can be driven to move up and down and pour out by the grab bucket driving mechanism after the large particles are collected to a certain amount, the time loss caused by repeated lifting is reduced, and the dredging efficiency is high.

The rotation of the overturning bucket 4 can be spliced with the separating bucket 3 on one hand, so that the falling of the silt and stones in the accommodating cavity is avoided, and on the other hand, the feeding of the silt can be assisted, namely, the silt in front of the separating bucket 3 can be gathered in the direction close to the separating bucket 3 during rotation, the processing effect of the silt is improved, and the mixing of mud and water in the cleaning process is reduced. The rotation of the separating hopper 3 is then used to dump the stones and large particles, which remain in the position shown in fig. 2 during dredging.

When the dredging device is used, the cylinder body 1 is firstly adjusted to a proper height, the grab bucket assembly is driven to sink by the driving mechanism, the boss of the sealing plate contacts the guide sliding plate 5, the sealing plate slides, the communication port of the separating bucket 3 is communicated with the feeding port 101 of the conveying assembly, the separating bucket 3 is matched with the guide sliding plate 5 and enables the separating bucket 3 to slide downwards until the lock cylinder 37 and the lock catch are mutually locked, the driving gear 331 is driven by the motor to rotate, the driving roller I31 and the driving roller II 32 are respectively driven to rotate in the same direction, sludge can fall into the lower end of the separating bucket 3 through a gap between the rotating rollers and flow into the sludge collecting tank through the communication port and the conveying assembly, the sludge with harder texture is broken by the blades 35, particles (such as stones) with larger diameters are reserved above the driving roller, and the driving roller anticlockwise rotates, and the particles with larger diameters are conveyed into the collecting cover 34 for storage.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the claims and description.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. Hydraulic engineering dredging device, its characterized in that includes:

the grab bucket assembly comprises a bracket (21), a separating bucket (3) and a overturning bucket (4), wherein the separating bucket (3) and the overturning bucket (4) are rotationally connected with the bracket (21), and a containing cavity for containing sludge is formed between the separating bucket (3) and the overturning bucket (4);

a conveying assembly for conveying the sludge in the accommodation chamber;

a grapple drive assembly (2), the grapple drive assembly (2) for moving the position of the grapple assembly;

the separation assembly is arranged on the inner side of the separation hopper (3) and is used for separating particles in the sludge and storing the particles in the separation hopper (3).

2. The hydraulic engineering dredging apparatus according to claim 1, wherein: the grab bucket driving assembly (2) comprises a ship body and a supporting arm fixedly connected with the ship body, wherein the upper end of the supporting arm is provided with a pulley, a winch is fixedly arranged on the ship body, a steel wire rope of the winch is wound on the outer side of the pulley and is fixedly connected with the bracket (21), and a sludge accommodating groove corresponding to the outlet of the conveying assembly is formed in the ship body;

the conveying assembly comprises a cylinder body (1) and a spiral rotating shaft (33) arranged on the inner side of the cylinder body (1), the spiral rotating shaft (33) is correspondingly provided with a motor, a shell of the motor is fixedly connected with the cylinder body (1), and an output shaft of the motor is fixedly connected with the spiral rotating shaft (33).

3. The hydraulic engineering dredging apparatus according to claim 1, wherein: the support (21) is correspondingly provided with a first hydraulic cylinder for driving the separating hopper (3) to rotate, a shell of the first hydraulic cylinder is hinged with the support (21), and an output shaft of the first hydraulic cylinder is hinged with the separating hopper (3);

the support (21) is correspondingly provided with a second hydraulic cylinder for driving the overturning bucket (4) to rotate, a shell of the second hydraulic cylinder is hinged with the support (21), and an output shaft of the second hydraulic cylinder is hinged with the overturning bucket (4).

4. The hydraulic engineering dredging apparatus according to claim 1, wherein: the separating hopper (3) is provided with a communication port corresponding to the inlet of the conveying assembly, the communication port is correspondingly provided with a sealing plate, the sealing plate is in sliding fit with the separating hopper (3), the communication port is sealed by the sealing plate under the action of gravity, and a boss corresponding to the conveying assembly is fixedly arranged on the sealing plate.

5. The hydraulic engineering dredging apparatus according to claim 4, wherein: the separating assembly comprises a collecting cover (34) and a plurality of driving rollers, wherein a through hole is formed in the collecting cover (34), the collecting cover (34) is installed on the inner side of the separating hopper (3) and is positioned above the communicating opening, the driving rollers are rotationally connected with the separating hopper (3), the number of the driving rollers is multiple, the plurality of the driving rollers are sequentially lifted along the installation position from the opening of the separating hopper (3) to the direction of the collecting cover (34), and the driving rollers are correspondingly provided with driving motors for driving the driving rollers to rotate;

the collecting cover (34) is provided with a pressure sensor.

6. The hydraulic engineering dredging apparatus according to claim 5, wherein: a plurality of blades (35) are fixedly arranged on the outer surface of the driving roller, the blades (35) are eccentrically arranged with the driving roller, the blades (35) incline in the rotation direction of the driving roller, the front edge of each blade (35) is provided with a blade, and the blades (35) of two adjacent driving rollers are staggered in the axial direction.

7. The hydraulic engineering dredging apparatus according to claim 5, wherein: the driving rollers comprise first driving rollers (31) and second driving rollers (32), the first driving rollers (31) and the second driving rollers (32) are sequentially arranged at intervals, the number of the first driving rollers (31) is one more than that of the second driving rollers (32), and the axis connecting line of two adjacent first driving rollers (31) is higher than that of the second driving rollers (32) between the two adjacent first driving rollers (31);

the driving motor comprises a driving motor, wherein a driving gear (331) is fixedly arranged on an output shaft of the driving motor, a first gear (311) is fixedly arranged on one first driving roller (31), a second gear (321) is fixedly arranged on one second driving roller (32), the second gear (321) and the first gear (311) are meshed with the driving gear (331), and the outer diameter of the first gear (311) is smaller than that of the second gear (321);

the first driving rollers (31) are respectively provided with a synchronous pulley, and the first driving rollers (31) synchronously rotate through synchronous belts;

and a synchronous pulley is arranged on the second driving rollers (32), and the second driving rollers (32) synchronously rotate through synchronous belts.

8. The hydraulic engineering dredging apparatus according to claim 1, wherein: the inlet end of the conveying assembly is fixedly provided with a guide assembly, the guide assembly comprises a guide slide plate (5) and vertical plates fixedly arranged on two sides of the guide slide plate (5), the guide slide plate (5) is matched with the side wall of the separating hopper (3) at the communicating port, the guide slide plate (5) and the two vertical plates form a guide chute, the separating hopper (3) is fixedly provided with a guide block matched with the guide chute, and the feeding port (101) of the conveying assembly corresponds to the communicating port;

the guide assembly is detachably connected with the separating hopper (3) through the limiting assembly.

9. The hydraulic engineering dredging apparatus according to claim 8, wherein: the limiting assembly comprises a lock cylinder (37) and a compression spring (361), a limiting groove (51) is formed in the guide sliding plate (5), a limiting hole (511) is formed in the opening of the limiting groove (51), and the diameter of the limiting hole (511) is smaller than that of the limiting groove (51);

the separating hopper (3) is provided with a mounting groove corresponding to the limiting groove (51), the lock cylinder (37) is fixedly connected with the sliding block (36), the sliding block (36) is mounted on the inner side of the mounting groove, and a compression spring (361) is arranged between the sliding block (36) and the bottom end of the mounting groove;

the lock cylinder (37) comprises a limiting part (371), a connecting part (372) and a mounting part (373) which are sequentially connected, the diameter of the mounting part (373) is larger than that of the limiting hole (511), the length of the connecting part (372) is matched with the depth of the limiting hole (511), and a boss with a triangular cross section is arranged on the end face, far away from the side opening, of the limiting part (371);

a shielding type photoelectric sensor is arranged on the lower end face of the mounting part (373).

10. The hydraulic engineering dredging apparatus according to claim 1, wherein: the separating hopper (3) is provided with a side opening and an upper opening, the overturning hopper (4) is provided with a side opening and an upper opening, and when the side opening of the overturning hopper (4) is overlapped with the side opening of the separating hopper (3), a containing cavity for containing sludge is formed between the separating hopper (3) and the overturning hopper (4);

the front end of the side opening of the overturning bucket (4) is fixedly provided with a plurality of soil breaking teeth (38), the soil breaking teeth (38) protrude out of the overturning bucket (4), vent holes (381) are formed in the soil breaking teeth (38), and the vent holes (381) are communicated with air supply equipment.