CN218952281U

CN218952281U - Desilting device

Info

Publication number: CN218952281U
Application number: CN202223606993.6U
Authority: CN
Inventors: 黄刚; 杨涛; 刘友才
Original assignee: Sinohydro Bureau 8 Co Ltd
Current assignee: Sinohydro Bureau 8 Co Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-02
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a dredging device, which comprises a shell, wherein a motor is arranged in the shell, the bottom of the shell is connected with a volute, the center of the bottom of the volute is provided with a water inlet downwards, the outer edge of the volute is provided with a water outlet upwards, and the water inlet is communicated with the water outlet; the spiral case is internally provided with an impeller, the impeller comprises a disc and blades arranged on the lower surface of the disc, the middle part of the disc is provided with a shaft hole, and a main shaft of the motor is connected with the shaft hole. According to the utility model, the volute structure is arranged, so that sludge at the bottom of a river channel can be automatically cleaned and conveyed, the structure is compact and firm, and the labor can be saved.

Description

Desilting device

Technical Field

The utility model belongs to the technical field of water conservancy and hydropower, and particularly relates to a dredging device.

Background

The river course time of water conservancy and hydropower facilities is long, so that sludge accumulation is easy to cause, the river course accumulation increasingly influences the normal play of various functions such as flood control, drainage, irrigation, water supply, navigation and the like, and the river course dredging engineering is carried out in order to restore the normal functions of the river course and promote the rapid and sustainable development of the economy and society. The river channel is deepened and widened by treatment, the river water is clear, the production conditions and living environment of the masses are obviously improved, and the safety of production and life is ensured.

The present dredging device such as chinese patent number CN216339793U discloses a dredging device ware for hydraulic and hydroelectric construction, relates to hydraulic construction technical field, including the bottom plate, still includes: the coaming plates are arranged on two sides of the bottom plate, one side of the coaming plate is fixedly connected with the fixing plates, and the filter tank is fixedly connected between the fixing plates; the dredging mechanism is arranged above the filtering part and comprises a hanging rod, one side of the hanging rod is fixedly connected with a fixed disc, one side of the fixed disc is rotationally connected with an installation roller, the side wall of the installation roller is fixedly connected with a plurality of bearing rods, the ends of the bearing rods are respectively provided with a scraping brush, a pressing roller and a scraping plate for dredging, and an adjusting component is arranged at one axial end of a rotating shaft of the installation roller and is used for adjusting the positions of the scraping brushes, the pressing rollers and the scraping plates so as to realize different functions; the driving mechanism is arranged above the installation roller and used for driving the dredging mechanism to treat sludge. From the above, the existing dredging device can only clean the silt, but can not convey the silt of the river channel, so that the dredging effect is affected, and the dredging device thoroughly cleans the river channel and consumes larger manpower.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides the dredging device which can automatically clear and convey the sludge at the bottom of a river channel, has a compact and firm structure and can save manpower.

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

the dredging device comprises a shell, wherein a motor is arranged in the shell, the bottom of the shell is connected with a volute, a water inlet is formed downwards at the center of the bottom of the volute, a water outlet is formed upwards at the outer edge of the volute, and the water inlet is communicated with the water outlet;

the spiral case is internally provided with an impeller, the impeller comprises a disc and blades arranged on the lower surface of the disc, the middle part of the disc is provided with a shaft hole, and a main shaft of the motor is connected with the shaft hole.

Therefore, the motor drives the impeller to rotate in the volute, at the moment, the sludge is sucked from the water inlet, is thrown to the inner wall of the volute under the action of centrifugal force, is finally discharged from the water outlet at the outer edge of the volute, and automatically cleans and conveys the sludge at the bottom of the river channel.

Further, the blades and the disc are integrally formed, the blades are arc-shaped, the annular blade array is arranged on the lower surface of the disc, and one end of each blade extends towards the edge of the disc.

Further, the spiral case is flat, shaft hole and water inlet coaxial setting.

Still further, the bottom of spiral case is installed the stabilizer blade, the stabilizer blade includes the gasket that is annular and establishes the pillar below the gasket.

Still further, the top of shell is equipped with the seal end cover, install the gallows on the seal end cover.

Still further, be equipped with the bearing frame in the sealed end cover, the upper end of main shaft with the bearing frame is connected.

Still further, the through-hole has been seted up at the middle part of sealed end cover, the cable conductor of motor wears out in the through-hole.

In addition, the sealing end cover surface is annular array and distributes and has the strengthening rib, the lateral wall face of shell encircles and has the strengthening rib.

The utility model has the following advantages: the utility model can automatically clean and convey the sludge at the bottom of the river channel by arranging the volute structure, has compact and firm structure and can save manpower.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a bottom view of the present utility model;

FIG. 3 is a schematic diagram of a motor structure according to the present utility model;

fig. 4 is a schematic view of the impeller structure of the present utility model.

The figure indicates: 1. a housing; 2. a seal; 3. a volute; 4. sealing the end cover; 5. a hanging bracket; 6. a support leg; 7. reinforcing ribs; 8. a motor; 9. a main shaft; 10. a bearing seat; 11. an impeller; 12. a water inlet; 13. a water outlet; 14. a gasket; 15. a support post; 16. reinforcing strips; 17. a cable; 18. a disc; 19. a blade; 20. and the shaft hole.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings for a better understanding of the objects, structures and functions of the present utility model.

As shown in fig. 1 and 3, a dredging device of the present embodiment includes a casing 1 having a circular truncated cone shape, a motor 8 is disposed in the casing 1, a sealing end cover 4 is disposed at the top of the casing 1, a flat volute 3 is connected to the bottom of the casing 1, and a sealing element 2 is disposed at a connection end between the casing 1 and the volute 3.

As shown in fig. 1 and 2, a water inlet 12 is formed downwards at the bottom center of the volute 3, a water outlet 13 is formed upwards at the outer edge of the volute 3, and the water inlet 12 is communicated with the water outlet 13.

As shown in fig. 2 and 4, an impeller 11 is disposed in the volute 3, the impeller 11 includes a disc 18 and blades 19 disposed on the lower surface of the disc 18, a shaft hole 20 is disposed in the middle of the disc 18, the shaft hole 20 is coaxially disposed with the water inlet 12, and a main shaft 9 of the motor 8 is connected with the shaft hole 20. The blades 19 and the disc 18 are integrally formed, the blades 19 are arc-shaped, the annular arrays of the blades 19 are arranged on the lower surface of the disc 18, and one ends of the blades 19 extend to the edge of the disc 18. The adoption of the semi-open impeller arrangement mode ensures that the impeller 11 is not easy to block in the sludge conveying process, and can meet the high-speed rotation requirement.

As shown in fig. 1 and 3, the bottom of the scroll casing 3 is provided with a leg 6, and the leg 6 includes a gasket 14 having a ring shape and a support 15 provided under the gasket 14. The gasket 14 and the strut 15 are integrally formed, so that the whole support leg 6 has a supporting function on the volute 3, and plays a role in protecting the volute 3.

As shown in fig. 1, a hanger 5 is mounted on the seal cover 4. The middle part of the sealing end cover 4 is provided with a through hole, and a cable 17 of the motor 8 passes through the through hole. The cable 17 can be connected to a power supply to supply power to the motor 8. The position of the cable 17 passing through the sealing end cover 4 is sealed by sleeve gluing, so that the waterproof effect is achieved. The surface of the sealing end cover 4 is distributed with reinforcing strips 16 in an annular array, so that the structural strength of the sealing end cover 4 can be improved. The side wall surface of the shell 1 is surrounded by a reinforcing rib 7, so that the overall structural strength is high. As shown in fig. 3, a bearing seat 10 is provided in the seal end cover 4, and the upper end of the main shaft 9 is mounted in the bearing seat 10.

When the dredging device is used, the hanging frame 5 is hung on the dredging ship in a hanging mode, then the dredging device is placed on sludge in a river channel, suction of the sludge at the bottom of the river channel is achieved, and the sewage outlet 13 is connected with a pipeline to convey the sludge into a cabin of the dredging ship, so that dredging operation of the river channel can be achieved.

The shell 1, the sealing element 2 and the volute 3 are sequentially arranged, so that the whole structure is compact, and the reinforcing ribs 7 are arranged on the side wall surface of the shell in a surrounding mode, so that the whole structure is high in strength. The impeller 11 is installed to the extension of the main shaft lower extreme of the motor that sets up through sealing member 2, and impeller 11 is established in spiral case 3, and the motor drives impeller 11 rotation and can aspirate river course silt and discharge from the delivery port 13 of spiral case 3, realizes automatic clearance transport to river course bottom silt, uses manpower sparingly effectively.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The dredging device comprises a shell (1), wherein a motor (8) is arranged in the shell (1), and is characterized in that the bottom of the shell (1) is connected with a volute (3), a water inlet (12) is formed in the center of the bottom of the volute (3) downwards, a water outlet (13) is formed in the outer edge of the volute (3) upwards, and the water inlet (12) is communicated with the water outlet (13);

the spiral case (3) is internally provided with an impeller (11), the impeller (11) comprises a disc (18) and blades (19) arranged on the lower surface of the disc (18), the middle part of the disc (18) is provided with a shaft hole (20), and a main shaft (9) of the motor (8) is connected with the shaft hole (20).

2. The dredging device according to claim 1, wherein the blades (19) and the disc (18) are integrally formed, the blades (19) are arc-shaped, the annular array of the blades (19) is arranged on the lower surface of the disc (18), and one end of each blade (19) extends towards the edge of the disc (18).

3. Dredging arrangement according to claim 1, wherein the volute (3) is flat, the shaft hole (20) being arranged coaxially with the water inlet (12).

4. Dredging arrangement according to claim 1, characterized in that the bottom of the volute (3) is fitted with a foot (6), which foot (6) comprises a ring-shaped gasket (14) and a pillar (15) arranged below the gasket (14).

5. Dredging arrangement according to claim 1, characterized in that the top of the housing (1) is provided with a sealing end cap (4), on which sealing end cap (4) a hanger (5) is mounted.

6. Dredging arrangement according to claim 5, characterized in, that a bearing seat (10) is provided in the sealing end cap (4), the upper end of the main shaft (9) being connected with the bearing seat (10).

7. Dredging arrangement according to claim 5, characterized in that a through hole is provided in the middle part of the sealing end cap (4), from which the cable (17) of the motor (8) is led out.

8. Dredging arrangement according to any one of claims 5-7, characterized in that the sealing end cap (4) surface is provided with reinforcing strips (16) distributed in a ring-shaped array, and the side wall surface of the housing (1) is provided with reinforcing ribs (7) in a surrounding manner.