CN219081756U

CN219081756U - High-rotation-speed rotating wheel structure of water turbine

Info

Publication number: CN219081756U
Application number: CN202223381447.7U
Authority: CN
Inventors: 孙东明
Original assignee: Hangzhou Kangpeng Machinery Manufacturing Co ltd
Current assignee: Hangzhou Kangpeng Machinery Manufacturing Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-05-26
Anticipated expiration: 2032-12-16

Abstract

The utility model discloses a high-rotation-speed rotating wheel structure of a water turbine, which relates to the technical field of water turbine equipment and comprises a fixed ring, wherein a bottom block is arranged in the fixed ring, the top of the bottom block is provided with a mounting round table, the top of the mounting round table is provided with an end cover, the outer side of the mounting round table is provided with rotating wheel blades, the inner side of the fixed ring is provided with a plurality of first fixed grooves, the inner side of each first fixed groove is fixedly provided with a rubber pad in a welding manner, the outer side of the bottom block is provided with a plurality of connecting plates, one side of each connecting plate is fixedly arranged on the bottom block in a welding manner, the other side of each connecting plate is fixedly arranged on the inner side of the fixed ring in a welding manner, and the center position of the top of the bottom block is provided with a first spiral groove. The fixed ring, the installation round platform, the end cover and the pin-connected panel setting of runner blade can be when runner blade damages, only need change the runner blade that damages can, and then need not to change other parts of runner to reduce maintenance cost.

Description

High-rotation-speed rotating wheel structure of water turbine

Technical Field

The utility model relates to the technical field of water turbine equipment, in particular to a high-rotation-speed rotating wheel structure of a water turbine.

Background

The water turbine is a power machine for converting energy of water flow into rotary mechanical energy, and belongs to turbine machinery in fluid machinery, and the water turbine and auxiliary machinery are important hydroelectric equipment which are indispensable components in hydroelectric power industry.

The mixed flow hydraulic turbine consists of a shell, a top cover, a rotating wheel and other parts, the rotating wheel is the most important component in the hydraulic turbine, and most of rotating wheel blades of the mixed flow hydraulic turbine are integrally formed with a rotating wheel frame, so that after the rotating wheel blades are impacted by sundries in water flow, the rotating wheel blades are damaged, and the normal operation of the hydraulic turbine is affected.

Disclosure of Invention

The utility model aims to provide a high-rotation-speed rotating wheel structure of a water turbine, which can effectively solve the problems in the background technology.

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

the utility model provides a high rotational speed runner structure of hydraulic turbine, includes the solid fixed ring, be equipped with the bottom block in the solid fixed ring, the bottom block top is equipped with the installation round platform, the installation round platform top is equipped with the end cover, the installation round platform outside is equipped with runner blade, a plurality of first fixed slot has been seted up to the solid fixed ring inboard.

As a further optimization scheme of the utility model, a rubber pad is fixedly arranged on the inner side of the first fixing groove in a welding mode, a plurality of connecting plates are arranged on the outer side of the bottom block, one side of each connecting plate is fixedly arranged on the bottom block in a welding mode, the other side of each connecting plate is fixedly arranged on the inner side of the fixing ring in a welding mode, and a first spiral groove is formed in the center position of the top of the bottom block.

As a further optimization scheme of the utility model, a plurality of second fixing grooves are formed in the outer side of the installation round table, a third perforation is formed in the center of the installation round table, and a plurality of second spiral grooves are formed in the top of the installation round table.

As a further optimization scheme of the utility model, an inserting block is arranged on one side of the rotating wheel blade, the rotating wheel blade is fixedly arranged on the inserting block in a welding mode, the inserting block is installed in a second fixing groove on one side of the installation round table in a penetrating mode, and one side, far away from the inserting block, of the rotating wheel blade is installed in a first fixing groove on the inner side of the fixing ring in a penetrating mode.

As a further optimization scheme of the utility model, a plurality of positioning blocks are arranged at the bottom of the end cover, first through holes are formed in the end cover and the positioning blocks, the end cover is fixedly arranged at the top of the installation round table through screws in the first through holes, a flange is fixedly arranged at the top of the end cover, a second through hole is formed in the center position of the end cover below the flange, fixing columns are installed in the second through hole and the third through hole in a penetrating manner, and a main body below the fixing columns is rotatably arranged in a first screw groove at the top of the bottom block.

Compared with the prior art, the utility model has the following beneficial effects:

according to the high-rotation-speed runner structure of the water turbine, disclosed by the utility model, the fixed ring, the mounting round table, the end cover and the runner blades are arranged in an assembled mode, so that when the runner blades are damaged, only the damaged runner blades are required to be replaced, the rest parts of the runner are not required to be replaced, and the maintenance cost is reduced.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a split view of the main structure of the present utility model;

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

FIG. 4 is a schematic view of a rotor blade according to the present utility model;

fig. 5 is a cross-sectional view of an end cap of the present utility model.

In the figure: 1. a fixing ring; 2. installing a round table; 3. an end cap; 4. a rotor blade; 5. a first fixing groove; 6. a bottom block; 7. a connecting plate; 8. a first screw groove; 9. a second fixing groove; 10. a second screw groove; 11. inserting blocks; 12. a positioning block; 13. a first perforation; 14. a flange; 15. a second perforation; 16. fixing the column; 17. and a third perforation.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-5, the high-rotation-speed runner structure of the water turbine provided by the utility model comprises a fixed ring 1, wherein a bottom block 6 is arranged in the fixed ring 1, a mounting round table 2 is arranged at the top of the bottom block 6, an end cover 3 is arranged at the top of the mounting round table 2, runner blades 4 are arranged at the outer side of the mounting round table 2, and a plurality of first fixing grooves 5 are formed in the inner side of the fixed ring 1.

The inner side of the first fixed groove 5 is fixedly provided with a rubber pad in a welding way, the outer side of the bottom block 6 is provided with a plurality of connecting plates 7, one side of each connecting plate 7 is fixedly provided with the bottom block 6 in a welding way, the other side of each connecting plate 7 is fixedly provided with the inner side of the fixed ring 1 in a welding way, the center position of the top of each bottom block 6 is provided with a first spiral groove 8, the inclined connecting plates 7 can ensure that the water flow impacting the rotating wheel blades 4 cannot be influenced by the connecting plates 7, the outer side of the installation round table 2 is provided with a plurality of second fixed grooves 9, the center position of the installation round table 2 is provided with a third perforation 17, the top of the installation round table 2 is provided with a plurality of second spiral grooves 10, one side of each rotating wheel blade 4 is provided with an inserting block 11, the rotating wheel blades 4 are fixedly provided with the inserting blocks 11 in a welding way, the inserting blocks 11 are installed in the second fixed grooves 9 on one side of the installation round table 2 in an inserting way, the side of the runner blade 4 far away from the insert 11 is inserted and installed in the first fixing groove 5 at the inner side of the fixing ring 1, the insert 11 is fixedly connected with the runner blade 4, the damaged runner blade 4 can be conveniently and quickly disassembled, the bottom of the end cover 3 is provided with a plurality of positioning blocks 12, the end cover 3 and the positioning blocks 12 are internally provided with first through holes 13, the end cover 3 is fixedly installed at the top of the installation round table 2 through screws in the first through holes 13, the top of the end cover 3 is fixedly provided with a flange 14, the end cover 3 is provided with a second through hole 15 at the center position below the flange 14, the second through hole 15 and a third through hole 17 are inserted and installed with a fixing column 16, the main body below the fixing column 16 is rotatably installed in the first screw groove 8 at the top of the bottom block 6, the positioning blocks 12 are arranged, the first through holes 13 and the second screw groove 10 at the top of the installation round table 2 can be conveniently aligned, thereby facilitating the rapid and fixed installation of the end cover 3 on the installation round table 2.

It should be noted that, the present utility model is a high rotation speed runner structure of a water turbine, when a new runner blade 4 is installed, firstly, a damaged runner blade 4 side insert 11 is taken out from a second fixing groove 9 on one side of an installation round table 2, then, a new replacement runner blade 4 side insert 11 is inserted into the second fixing groove 9 on one side of the installation round table 2, then, the bottom of the installation round table 2 is placed on a bottom block 6, and the installation round table 2 drives the insert 11 to move, so, the insert 11 drives the other side of the runner blade 4 to gradually insert into a first fixing groove 5 corresponding to the inner side of a fixing ring 1, and the insert 11 is firmly acted by a rubber pad on the inner wall of the second fixing groove 9, and meanwhile, the rubber pad in the first fixing groove 5 plays a firm role on one side of the runner blade 4, so that the runner blade 4 is ensured not to shake when being impacted by water flow, then, the end cover 3 is placed on top of the installation round table 2, the end cover 3 is inserted above the corresponding second screw groove 10 through the bottom positioning block 12, the positioning function is further achieved, then, the end cover 3 is fixedly installed on the installation round table 2 through screws penetrating through the first through holes 13 and screwing into the second screw groove 10, the insertion block 11 is fixed in the second fixing groove 9 through the end cover 3, then, the fixing column 16 penetrates through the second through holes 15 and the third through holes 17, the column below the fixing column 16 is installed in the first screw groove 8 on top of the bottom block 6 through threads of the outer wall, the end cover 3, the installation round table 2 and the fixing ring 1 are fixedly connected, then, the whole water wheel can be installed in the water wheel casing, and the whole water wheel is fixed on the main shaft of the water wheel through the flange 14.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A high-rotation-speed rotating wheel structure of a water turbine is characterized in that: including solid fixed ring (1), be equipped with bottom block (6) in solid fixed ring (1), bottom block (6) top is equipped with installation round platform (2), installation round platform (2) top is equipped with end cover (3), installation round platform (2) outside is equipped with runner blade (4), a plurality of first fixed slot (5) have been seted up to solid fixed ring (1) inboard.

2. The high-speed runner structure of a hydraulic turbine according to claim 1, wherein: the inner side of the first fixed groove (5) is fixedly provided with a rubber pad in a welded mode, the outer side of the bottom block (6) is provided with a plurality of connecting plates (7), one side of each connecting plate (7) is fixedly arranged on the bottom block (6) in a welded mode, the other side of each connecting plate (7) is fixedly arranged on the inner side of the fixed ring (1) in a welded mode, and the center position of the top of each bottom block (6) is provided with a first spiral groove (8).

3. The high-speed runner structure of a hydraulic turbine according to claim 2, wherein: a plurality of second fixing grooves (9) are formed in the outer side of the installation round table (2), a third perforation (17) is formed in the center of the installation round table (2), and a plurality of second spiral grooves (10) are formed in the top of the installation round table (2).

4. A high speed runner structure for a hydraulic turbine according to claim 3, wherein: the rotary table is characterized in that an inserting block (11) is arranged on one side of the rotary table blade (4), the rotary table blade (4) is fixedly arranged on the inserting block (11) in a welding mode, the inserting block (11) is installed in a second fixing groove (9) on one side of the installation round table (2) in a penetrating mode, and one side, far away from the inserting block (11), of the rotary table blade (4) is installed in a first fixing groove (5) on the inner side of the fixing ring (1) in a penetrating mode.

5. The high-speed runner structure of a hydraulic turbine according to claim 4, wherein: the bottom of the end cover (3) is provided with a plurality of positioning blocks (12), first through holes (13) are formed in the end cover (3) and the positioning blocks (12), the end cover (3) is fixedly arranged at the top of the installation round table (2) through screws in the first through holes (13), a flange (14) is fixedly arranged at the top of the end cover (3), a second through hole (15) is formed in the center position of the end cover (3) below the flange (14), fixing columns (16) are installed in the second through holes (15) and the third through holes (17) in a penetrating mode, and a main body below the fixing columns (16) is rotatably arranged in a first spiral groove (8) in the top of the bottom block (6).