CN215669376U

CN215669376U - Can collect power station trash rack mechanism of clearance debris

Info

Publication number: CN215669376U
Application number: CN202121965795.1U
Authority: CN
Inventors: 黄姿慧
Original assignee: Yunnan Agricultural University
Current assignee: Yunnan Agricultural University
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-28
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a trash rack mechanism for a hydropower station capable of collecting and cleaning sundries, belonging to the technical field of water conservancy and hydropower engineering. The collection box is composed of the bottom plate and the side plates on both sides to form a U shape; the collection box is hingedly provided with a reversible flap; the end of the bottom plate facing the trash rack is provided with a brush body; the collection box is provided with a brush body; The two sides are connected with the lifting screw; the upper end of the lifting screw passes through the platform of the dam body and then the worm gear is coaxially threaded; the worm gear is meshed with the worm; The installation frame is provided with a conveyor belt; the end of the installation frame facing the trash rack is provided with a stopper for controlling the turning of the turning plate. It can not only brush and clean the trash rack, but also collect and clean up the sundries in the water in front of the trash rack.

Description

Can collect power station trash rack mechanism of clearance debris

Technical Field

The utility model belongs to the technical field of hydraulic and hydroelectric engineering, and particularly relates to a hydropower station trash rack mechanism capable of collecting and cleaning sundries.

Background

The trash rack is generally arranged at an inlet gate of a power generation tunnel of a hydraulic power plant, mainly adopts a grid type fixed welding structure, and is used for intercepting large-volume or long-length sundries floating or suspended in a river channel and filtering water.

After the trash rack is used for a long time, various dirt such as plastics, rattan and the like can be accumulated on the grid, and meanwhile, more floating impurities can be accumulated in the water in front of the trash rack. When sundries and dirt are more, the filtering performance of the trash rack is reduced, the flow speed of water flow is reduced, and the power generation efficiency of the unit is affected.

In order to solve the problem, the front of the trash rack is generally cleaned regularly by manpower or ships, dirt on the trash rack is removed, and floating impurities in water in front of the trash rack are collected and removed. This removal is time consuming and labor intensive.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a hydropower station trash rack mechanism capable of collecting and cleaning sundries, which can not only scrub and clean the trash rack, but also collect and clean the sundries in the water in front of the trash rack.

In order to achieve the purpose, the utility model adopts the technical scheme that: the hydropower station trash rack mechanism capable of collecting and cleaning sundries comprises a trash rack arranged at a water inlet of a dam body power generation hole, and a collecting box is arranged on the front side of the trash rack; the collecting box is combined by a bottom plate and side plates at two sides to form a U shape; a turnover plate is hinged in the collection box; a brush body is arranged at one end of the bottom plate, which faces the trash rack; the two sides of the collecting box are connected with a lifting screw rod; the upper end of the lifting screw penetrates through the platform of the dam body and is coaxially connected with a worm gear in a threaded manner; the worm wheel is meshed with the worm; the worm is connected with a driving motor; the upper end in front of the trash rack is provided with an installation rack; a conveying belt is arranged on the mounting rack; and a stop block for controlling the turnover of the turning plate is arranged at one end of the mounting frame, which faces the trash rack.

As a further improvement of the technical scheme, the turning plate is a mesh plate.

As a further improvement of the technical scheme, the bottom plate is a mesh plate.

As a further improvement of the technical scheme, two sides of the turning plate are hinged on the side plate through a hinged shaft; the front end of the turning plate extends forwards to exceed the end head of the bottom plate.

As a further improvement of the technical scheme, rollers are arranged on two sides of the collecting box; vertical sliding grooves are formed in the two side walls of the power generation hole; the roller is positioned in the sliding groove.

As a further improvement of the technical scheme, the upper end and the lower end of the worm wheel are arranged in the mounting box through bearings.

As a further improvement of the technical scheme, a groove is axially arranged on the outer wall of the lifting screw; and a bulge matched with the groove is arranged in the mounting hole which is used for penetrating through the lifting screw on the mounting box.

Compared with the prior art, the utility model has the advantages that:

this device has adopted the clean mechanism of over-and-under type, can openly scrub the cleanness to the trash rack, can also collect the debris of trash rack the place ahead aquatic simultaneously to transport away on the conveyer belt with debris voluntarily, both realized the cleanness of trash rack, realized the debris collection clearance of power station water inlet position again.

Drawings

FIG. 1 is a schematic side view of the whole structure of the mechanism after the collection box is lowered;

FIG. 2 is a schematic side sectional view of the collection box;

FIG. 3 is a schematic side view of the mechanism after the collection box is lifted and turned over;

FIG. 4 is a schematic structural diagram of the front side of the mechanism;

fig. 5 is a schematic view of the end face structure of the lifting screw.

In the figure: 1. a dam body; 2. a trash rack; 3. a lifting screw; 4. a base plate; 5. a roller; 6. a chute; 7. a worm gear; 8. a worm; 9. mounting a box; 10. a drive motor; 11. a side plate; 12. a brush body; 13. turning over a plate; 14. a mounting frame; 15. a conveyor belt; 16. a stopper; 17. a working port; 31. and (4) a groove.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

Referring to fig. 1 to 5, in a specific embodiment, a hydroelectric station trash rack mechanism capable of collecting and cleaning impurities comprises a trash rack 2 arranged at a water inlet of a power generation hole of a dam body 1, wherein a collecting box is arranged on the front surface of the trash rack 2; the collecting box is combined by a bottom plate 4 and side plates 11 at two sides to form a U shape; a turnover plate 13 which can be turned over is hinged in the collection box; a brush body 12 is arranged at one end of the bottom plate 4 facing the trash rack 2; the two sides of the collecting box are connected with a lifting screw 3; the upper end of the lifting screw rod 3 penetrates through the platform of the dam body 1 and then is coaxially connected with a worm wheel 7 in a threaded manner; the worm wheel 7 is meshed with the worm 8; the worm 8 is connected with a driving motor 10; the upper end in front of the trash rack 2 is provided with a mounting rack 14; the mounting frame 14 is provided with a conveying belt 15; the end of the mounting frame 14 facing the trash rack 2 is provided with a stop 16 for controlling the turning of the flap 13.

Wherein the brush body 12 can be a brush, also can be other densely distributed flexible short rods, the collection box moves up and down under the drive of the lifting screw 3, and the dirt stuck on the trash rack 2 is removed through the brush body 12.

The trash rack 2 is of a grid structure, vertical bars are uniformly distributed in a grid main body side by side, and the vertical bars are connected through cross bars with wider intervals.

Wherein, when collecting box length when short, can only set up lifting screw 3 at both ends, when collecting box length when longer, can add extra lifting screw 3 in collection box interlude position and improve the operating stability who collects the box.

In order to filter water for collecting impurities, the turning plate 13 is a mesh plate which is optimized on the basis of the above embodiment.

In order to filter water for collecting impurities, the bottom plate 4 is a mesh plate, which is optimized on the basis of the above embodiment.

As shown in fig. 2, optimized on the basis of the above embodiment, two sides of the turning plate 13 are hinged to the side plate 11 through hinge shafts; the front end of the flap 13 extends forwards beyond the end of the base plate 4. When the collecting box ascends along with the lifting screw rod 3, the front end of the turning plate 13 touches the stop block 16, so that the turning plate 13 is turned upwards, sundries are poured onto the conveying belt 15, the conveying belt 15 collects the end of the sundries conveying belt again, and the sundries are conveyed away through manpower or related equipment.

As shown in fig. 4, in order to improve the lifting stability of the collecting box, it is optimized on the basis of the above embodiment that the two sides of the collecting box are provided with rollers 5; vertical sliding grooves 6 are formed in the two side walls of the power generation hole; the roller 5 is positioned in the sliding groove 6.

As shown in fig. 1, in order to improve the rotational stability of the worm wheel 7, it is preferable that the upper and lower ends of the worm wheel 7 are mounted in the mounting box 9 through bearings in the above-described embodiment.

As shown in fig. 5, in order to improve the lifting stability of the lifting screw 3, it is optimized on the basis of the above embodiment that the outer wall of the lifting screw 3 is provided with a groove 31 along the axial direction; and a bulge matched with the groove 31 is arranged in a mounting hole which is used for penetrating through the lifting screw rod 3 on the mounting box 9. The grooves 31 are generally arranged in two rows. The protrusion is snapped into the groove 31 to limit the rotation of the lifting screw 3, and ensure that the lifting screw 3 can only move up and down.

The working principle of the utility model is as follows:

after the driving motor 10 is started, the worm 8 is driven to rotate, the worm 8 drives the worm wheel 7 to rotate, a threaded hole is formed in the center of the worm wheel 7 and is matched with the lifting screw rod 3 to form a driving nut, the worm wheel 7 can drive the lifting screw rod 3 to ascend and descend when rotating, so that the collecting box at the lower end of the lifting screw rod 3 is enabled to move up and down, the two ends of the collecting box are clamped in the sliding grooves 6 through the rollers 5 to move up and down, the brush body 12 on the collecting box is in surface contact with the trash rack 2, and the trash rack is cleaned by the surface cleaning through the up and down movement. Meanwhile, the collecting box can collect floating sundries in water in front of the trash rack in the lifting process, after the collecting box is lifted, the front end of the turning plate 13 touches the stop block 16, the collecting box is continuously lifted, the turning plate 13 starts to turn over, and the sundries on the turning plate 13 are dumped on the conveying belt 15; then the lifting screw 3 begins to descend, and the turning plate 13 returns to the horizontal state. The side of the dam body 1 can be also provided with a working opening 17 for carrying collected sundries.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the utility model using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the utility model.

Claims

1. The hydropower station trash rack mechanism capable of collecting and cleaning sundries comprises a trash rack (2) arranged at a water inlet of a power generation hole of a dam body (1), and is characterized in that a collecting box is arranged on the front side of the trash rack (2); the collecting box is combined by a bottom plate (4) and side plates (11) at two sides to form a U shape; a turnover plate (13) is hinged in the collection box; a brush body (12) is arranged at one end of the bottom plate (4) facing the trash rack (2); the two sides of the collecting box are connected with a lifting screw (3); the upper end of the lifting screw (3) penetrates through the platform of the dam body (1) and then is coaxially connected with a worm gear (7) in a threaded manner; the worm wheel (7) is meshed with the worm (8); the worm (8) is connected with a driving motor (10); the upper end in front of the trash rack (2) is provided with a mounting rack (14); a conveying belt (15) is arranged on the mounting rack (14); and a stop block (16) for controlling the turning plate (13) to turn is arranged at one end of the mounting rack (14) facing the trash rack (2).

2. A hydroelectric power station drain grating mechanism as claimed in claim 1 in which the flipper (13) is a mesh plate.

3. A hydroelectric power station drain grating mechanism as claimed in claim 1 in which the floor (4) is a mesh plate.

4. The hydropower station trash rack mechanism capable of collecting and cleaning sundries according to claim 1, wherein two sides of the turning plate (13) are hinged on the side plate (11) through a hinge shaft; the front end of the turning plate (13) extends forwards to exceed the end head of the bottom plate (4).

5. A hydropower station trash rack mechanism capable of collecting and cleaning sundries according to claim 1, characterized in that rollers (5) are arranged at two sides of the collecting box; vertical sliding grooves (6) are formed in the two side walls of the power generation hole; the roller (5) is positioned in the sliding groove (6).

6. A hydropower station trash rack mechanism capable of collecting and cleaning sundries according to claim 1, characterized in that the upper end and the lower end of the worm gear (7) are arranged in a mounting box (9) through bearings.

7. A hydropower station trash rack mechanism capable of collecting and cleaning sundries according to claim 6, characterized in that a groove (31) is axially arranged on the outer wall of the lifting screw (3); and a bulge matched with the groove (31) is arranged in the mounting hole which is used for penetrating through the lifting screw rod (3) on the mounting box (9).