CN219102032U

CN219102032U - Silt-resistant type water turbine spindle sealing structure

Info

Publication number: CN219102032U
Application number: CN202223539182.9U
Authority: CN
Inventors: 姚海宁
Original assignee: Fujian Huide Power Generation Equipment Co ltd
Current assignee: Fujian Huide Power Generation Equipment Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-30
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a silt-resistant main shaft sealing structure of a water turbine, which comprises the following components: a rotating wheel; the wear plate installation seat is arranged on the outer side of the rotating wheel, a main shaft is arranged in the wear plate installation seat and positioned in the rotating wheel, and a sealing seat is arranged on the surface of the main shaft and positioned at the top of the wear plate installation seat; the sleeve shaft is arranged on the surface of the main shaft, a spiral rubber sleeve is fixedly arranged in the sleeve shaft, and connecting columns are fixedly arranged on two sides of the bottom of the sleeve shaft. According to the main shaft sealing structure of the anti-sediment type water turbine, when the main shaft of the main shaft rotates, the sleeve shaft is driven by the motor to reversely rotate and the spiral rubber sleeve is driven to reversely rotate, so that sediment near the position between the main shaft and the sealing seat is pushed out, equipment damage caused by the fact that sediment enters the position between the main shaft and the sealing seat can be avoided, and meanwhile the main shaft sealing structure is simple in structure, convenient to maintain in later period and low in maintenance cost.

Description

Silt-resistant type water turbine spindle sealing structure

Technical Field

The utility model relates to the field of water turbine spindles, in particular to a silt-resistant water turbine spindle sealing structure.

Background

The main shaft of the water turbine is electric power, hydraulic machinery and auxiliary equipment.

As in the prior art, the patent application with publication number CN201220425682.7 has the fundamental change of the pressurized water inlet mode, in which the sealing ring is pressed from top to bottom, and from bottom to top after improvement, under this structure, when the leaked water passes through the sealing ring, the leaked water rotates in the air, so that the problem of abrasion and damage to the parts of the sealing device is completely avoided, but the structure of this mode is relatively complex, so that the maintenance cost and the maintenance work efficiency of the later equipment can be increased.

Therefore, it is necessary to provide a sealing structure for a main shaft of a silt-resistant hydraulic turbine to solve the above technical problems.

Disclosure of Invention

The utility model provides a main shaft sealing structure of an anti-sediment water turbine, which solves the problems that the structure of the prior art is complex, so that the maintenance cost of later equipment and the working efficiency of maintenance can be increased.

In order to solve the technical problems, the utility model provides a main shaft sealing structure of an anti-sediment water turbine, which comprises: a rotating wheel;

the wear plate installation seat is arranged on the outer side of the rotating wheel, a main shaft is arranged in the wear plate installation seat and positioned in the rotating wheel, and a sealing seat is arranged on the surface of the main shaft and positioned at the top of the wear plate installation seat;

the sleeve shaft, the sleeve shaft set up in the surface of main shaft, sleeve shaft's inside fixed mounting has spiral rubber sleeve, the equal fixed mounting in both sides of sleeve shaft bottom has the spliced pole, the bottom fixed mounting of spliced pole has the ring gear, the bottom of ring gear pass through rotating the subassembly with the top of antifriction plate mount pad rotates to be connected, the outside meshing of ring gear has the gear, the bottom fixed mounting of gear has the motor.

Preferably, the rotating assembly comprises a circular chute, and both sides of the inside of the circular chute are both in sliding connection with arc-shaped sliding blocks.

Preferably, the outer side of the arc-shaped sliding block is fixedly arranged with the bottom of the toothed ring.

Preferably, the sliding cavities are formed in two sides of the sleeve shaft, the hollow sliding blocks are connected in the sliding cavities in a sliding mode, and the mounting columns are fixedly mounted at the bottoms of the hollow sliding blocks.

Preferably, threaded holes are formed in the tops of the two sides of the sleeve shaft inside and located on the inner side of the sliding cavity, and bolts are arranged in the tops of the two sides of the sleeve shaft inside and located on the outer side of the sliding cavity.

Preferably, a rotating ring is rotatably connected to the inner surface of the bolt.

Preferably, a tension spring is arranged on the inner side of the rotating ring and positioned on the surface of the bolt.

Compared with the related art, the main shaft sealing structure of the silt-resistant water turbine has the following beneficial effects:

the utility model provides a sealing structure of a main shaft of an anti-sediment type water turbine, which is characterized in that the structures of a rotating wheel, an abrasion-resistant plate mounting seat, a main shaft, a sealing seat, a sleeve shaft, a spiral rubber sleeve, a rotating assembly, a toothed ring, a connecting column, a gear, a motor and the like are mutually matched, so that the sleeve shaft is driven to reversely rotate and the spiral rubber sleeve is driven to reversely rotate by the motor when the main shaft rotates, sediment near the main shaft and the sealing seat is pushed out, equipment damage caused by the sediment entering the main shaft and the sealing seat can be avoided, and meanwhile, the structure is simple, the later maintenance is convenient, and the maintenance cost is reduced.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of a spindle sealing structure of an anti-silt hydraulic turbine according to the present utility model;

FIG. 2 is a schematic view of the top of the wear plate mount shown in FIG. 1;

FIG. 3 is a schematic view of the overall side cross-section of FIG. 1;

FIG. 4 is an enlarged schematic view of portion A shown in FIG. 3;

fig. 5 is a schematic structural view of a second embodiment of a spindle sealing structure of an anti-silt hydraulic turbine according to the present utility model

Fig. 6 is an enlarged schematic view of the portion B shown in fig. 5.

Reference numerals in the drawings: 1. the rotating wheel, 2, the wear-resistant plate mounting seat, 3, the main shaft, 4, the sealing seat, 5, the sleeve shaft, 6, the spiral rubber sleeve, 7, the round chute, 8, the arc-shaped sliding block, 9, the toothed ring, 10, the connecting column, 11, the gear, 12 and the motor,

13. the device comprises a sliding cavity, 14, a hollow sliding block, 15, a mounting column, 16, a threaded hole, 17, a bolt, 18, a rotating ring, 19 and a tension spring.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

First embodiment

Referring to fig. 1, fig. 2, fig. 3, and fig. 4 in combination, fig. 1 is a schematic structural diagram of a first embodiment of a spindle sealing structure of an anti-silt hydraulic turbine according to the present utility model; FIG. 2 is a schematic view of the top of the wear plate mount shown in FIG. 1; FIG. 3 is a schematic view of the overall side cross-section of FIG. 1; fig. 4 is an enlarged schematic view of a portion a shown in fig. 3. An anti-silt type hydraulic turbine main shaft sealing structure, comprising: a rotating wheel 1;

the wear plate mounting seat 2 is arranged on the outer side of the rotating wheel 1, a main shaft 3 is arranged in the wear plate mounting seat 2 and positioned in the rotating wheel 1, and a sealing seat 4 is arranged on the surface of the main shaft 3 and positioned at the top of the wear plate mounting seat 2;

the sleeve shaft 5, sleeve shaft 5 set up in the surface of main shaft 3, sleeve shaft 5's inside fixed mounting has spiral rubber sleeve 6, the equal fixed mounting in both sides of sleeve shaft 5 bottom has spliced pole 10, the bottom fixed mounting of spliced pole 10 has ring gear 9, the bottom of ring gear 9 pass through the rotating assembly with the top of antifriction plate mount pad 2 rotates to be connected, the outside meshing of ring gear 9 has gear 11, the bottom fixed mounting of gear 11 has motor 12.

The inner side of the spiral rubber sleeve 6 is in close contact with the surface of the main shaft 3, and the spiral rubber sleeve 6 pushes the silt to the outside in a spiral manner when rotating.

The rotating assembly comprises a circular chute 7, and arc-shaped sliding blocks 8 are connected to two sides of the inside of the circular chute 7 in a sliding mode.

The stability of the rotation of the toothed ring 9 can be improved and the limiting work of the use position of the toothed ring 9 can be carried out by the mutual matching between the circular sliding groove 7 and the arc sliding block 8.

The circular chute 7 is arranged at the top of the wear plate mounting base 2.

The outer side of the arc-shaped sliding block 8 is fixedly arranged at the bottom of the toothed ring 9.

The utility model provides a working principle of a main shaft sealing structure of an anti-sediment water turbine, which comprises the following steps:

when the main shaft 3 is in rotation, the motor 12 can be started, the gear 11 can be driven to rotate through the rotation of the motor 12, then the toothed ring 9 can be driven to rotate through the rotation of the gear 11, then the arc-shaped sliding block 8 can be driven to slide in the circular sliding groove 7 through the rotation of the toothed ring 9, and the connecting column 10 is driven to synchronously rotate through the rotation of the toothed ring 9.

The sleeve shaft 5 is driven to rotate through the rotation of the connecting column 10, the sleeve shaft 5 reversely rotates on the surface of the main shaft 3, the spiral rubber sleeve 6 is driven to rotate through the rotation of the sleeve shaft 5, sediment between the main shaft 3 and the sealing seat 4 can be pushed outwards through the spiral rubber sleeve 6, and the sediment which wants to enter the space between the main shaft 3 and the sealing seat 4 can be pushed outwards, so that the influence of the sediment on the sealing state between the main shaft and the sealing seat is avoided, the stability of equipment use can be improved, and the sealing performance of the main shaft of the water turbine and the sediment resisting work are maintained.

through mutually supporting between runner 1, antifriction plate mount pad 2, main shaft 3, seal seat 4, sleeve 5, spiral rubber sleeve 6, rotating assembly, ring gear 9, spliced pole 10, gear 11, motor 12 and other structures, thereby can drive sleeve 5 reverse rotation and drive spiral rubber sleeve 6 reverse rotation through motor 12 when its main shaft 3 rotates, consequently, will be close to the silt between main shaft 3 and the seal seat 4 and release outwards, so can avoid silt to enter into between the two and cause the damage of equipment, simple structure simultaneously, convenient later maintenance and reduction maintenance cost.

Second embodiment

Referring to fig. 5 and 6 in combination, another anti-silt type main shaft sealing structure of a hydraulic turbine is provided according to a second embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.

Specifically, the second embodiment of the present application provides a kind of anti silt type hydraulic turbine main shaft seal structure's difference lies in, an anti silt type hydraulic turbine main shaft seal structure, slide cavity 13 has all been seted up to the inside both sides of sleeve shaft 5, slide cavity 13's inside sliding connection has hollow slider 14, the bottom fixed mounting of hollow slider 14 has erection column 15.

Screw holes 16 are formed in the tops of the two sides of the interior of the sleeve shaft 5 and the inner side of the sliding cavity 13, and bolts 17 are arranged in the tops of the two sides of the interior of the sleeve shaft 5 and the outer side of the sliding cavity 13.

The inner surface of the bolt 18 is rotatably connected with a rotating ring 18.

A tension spring 19 is provided on the inner side of the rotary ring 18 and on the surface of the bolt 17.

By using the tension spring 19, when the hollow slide 14 is completely inserted into the slide cavity 13 and the holes in the hollow slide 14 are aligned with the threaded holes 16, the outward pulling of the bolts 17 can be released, and the rotating ring 18 is pulled inwards by the elastic deformation of the tension spring 19 to drive the bolts 17 to move from the outer side to the inner side and enter the hollow slide 14, and the hollow slide 14 is completely penetrated to reach the opening position of the threaded holes 16, so that manual inward pushing is not needed during installation.

And the condition that the bolt 17 drives the tension spring 19 to rotate when rotating is avoided through the rotating ring 18.

when it is necessary to remove the sleeve shaft 5 thereof, the threaded hole 16 is in a non-rotatable state by rotating the bolts 17 on both sides in sequence, so that the threaded connection between the bolts 17 and the threaded hole 16 is gradually released by the rotation of the bolts 17, and then the bolts 17 can be moved outward inside the hollow slider 14 thereof by simultaneously pulling the bolts 17 outward until the hollow slider 14 thereof loses the position-restricted state when the bolts 17 thereof are completely released from the hollow slider 14.

Then, the sleeve shaft 5 can be forced to move upwards by lifting the sleeve shaft 5 upwards, and all structures such as the sliding cavity 13 and the like mounted on the sleeve shaft 5 are driven to move upwards, so that the hollow sliding block 14 moves downwards in the sliding cavity 13 until the hollow sliding block 14 is separated from the sliding cavity 13, and the sleeve shaft 5 can be detached.

through the mutual cooperation among the structures of the sliding cavity 13, the hollow sliding block 14, the mounting column 15, the threaded hole 16, the bolt 17, the rotating ring 18, the tension spring 19 and the like, the sleeve shaft 5 can be conveniently installed and disassembled, and the structure is simple, the operation is convenient, and the maintenance work is conveniently performed after the sleeve shaft is disassembled.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides an anti silt formula hydraulic turbine main shaft seal structure which characterized in that includes: a rotating wheel;

2. The anti-sediment type hydraulic turbine main shaft sealing structure according to claim 1, wherein the rotating assembly comprises a circular chute, and arc-shaped sliding blocks are connected to two sides of the inside of the circular chute in a sliding manner.

3. The anti-sediment type hydraulic turbine main shaft sealing structure according to claim 2, wherein the outer side of the arc-shaped sliding block is fixedly arranged at the bottom of the toothed ring.

4. The main shaft sealing structure of the silt-resistant water turbine according to claim 1, wherein sliding cavities are formed in two sides of the inside of the sleeve shaft, a hollow sliding block is connected in the sliding cavities in a sliding mode, and a mounting column is fixedly mounted at the bottom of the hollow sliding block.

5. The main shaft sealing structure of an anti-sediment type water turbine according to claim 4, wherein threaded holes are formed in the tops of the inner sides of the sleeve shaft and the inner sides of the sliding cavity, and bolts are arranged in the tops of the inner sides of the sleeve shaft and the outer sides of the sliding cavity.

6. The sealing structure of a main shaft of an anti-silt hydraulic turbine according to claim 5, wherein a rotating ring is rotatably connected to the inner surface of the bolt.

7. The anti-sediment type hydraulic turbine main shaft sealing structure according to claim 6, wherein tension springs are arranged on the inner side of the rotating ring and on the surface of the bolt.