CN218817181U

CN218817181U - Composite sealing structure of submersible pump connecting shaft

Info

Publication number: CN218817181U
Application number: CN202223269070.6U
Authority: CN
Inventors: 徐宏勋; 曲素玲
Original assignee: Luoyang Shuilong Pump Co ltd
Current assignee: Luoyang Shuilong Pump Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-04-07
Anticipated expiration: 2032-12-07

Abstract

The utility model relates to a immersible pump is compound seal structure of axle even, including the immersible pump shell, the internally mounted of immersible pump shell has the motor, and is provided with into water frame immersible pump shell bottom, the inner wall of immersible pump shell is provided with the guard plate, the output of motor is provided with the bearing frame. The utility model discloses a set up the backup pad, a spring, annular pad and mounting panel, pack filler ring and filler bits of broken glass to the stop sleeve, overlap backup pad and mounting panel at the outer wall of pump shaft, it slides at the stop sleeve inner wall to promote the backup pad to drive the annular pad, and with filler bits of broken glass, the filler ring contact, and it is fixed with mounting panel and axle sleeve through the bolt, then the backup pad supports under the elasticity of spring, extrude throughout and pack garrulously, the filler ring, make and pack garrulously, the filler ring is closely laminated together all the time, keep high density, thereby can effectively seal protection to liquid, the easy not hard up problem that density diminishes of filler has effectively been solved.

Description

Composite sealing structure of submersible pump connecting shaft

Technical Field

The utility model relates to a immersible pump seals technical field, specifically is a compound seal structure of immersible pump even axle.

Background

The water pump is a machine for conveying liquid or pressurizing liquid, which transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, mainly used for conveying liquid including water, oil, acid-base liquid, emulsion, suspoemulsion, liquid metal, etc., the present useful and widely used is a submersible pump, the pump shaft of which is easy to be seeped due to water pressure, and is generally provided with a sealing structure for water prevention.

The packing in the seal structure of the existing submersible pump is long in service time, easy to age and reduce, and causes the packing density to be reduced, thereby affecting the sealing effect of the packing, and the front end of the pump shaft is close to the impeller, and the impact of water pressure is large, so that the sealing performance of the position of the pump shaft is poor. Aiming at the problems, the innovative design is carried out on the basis of the original composite sealing structure of the connecting shaft of the submersible pump.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound seal structure of immersible pump even axle to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a immersible pump is composite seal structure of axle even, includes the immersible pump shell, the internally mounted of immersible pump shell has the motor, and is provided with into water frame immersible pump shell bottom, the inner wall of immersible pump shell is provided with the guard plate, the output of motor is provided with the bearing frame, the inboard of bearing frame is provided with the pump shaft, the outer wall of pump shaft is provided with sealed the pad, and the outer wall of pump shaft is located the below of sealed pad and is provided with the axle sleeve, the bottom of axle sleeve is provided with additional strengthening, the bottom of guard plate is provided with the cassette, the inner wall of cassette is provided with the moisture absorption cotton, the inboard of moisture absorption cotton is provided with the cardboard, the bottom of cardboard is provided with the attaching plate, the bottom of attaching plate is provided with the installation cover.

Preferably, one side of the submersible pump shell is connected with a water outlet pipe, a cavity is formed in the submersible pump shell, and an impeller is arranged on the outer wall of the pump shaft.

Preferably, the outer wall of the sealing gasket is provided with a mechanical sealing structure, the shaft sleeve is internally provided with a packing fragment, the inner side of the packing fragment is provided with a packing ring, and the packing ring is coiled on the outer wall of the pump shaft.

Preferably, additional strengthening includes limit sleeve, mounting panel, spring, backup pad, annular pad and sealing washer, the inner wall of axle sleeve is provided with limit sleeve, one side of limit sleeve is provided with the annular pad, the inboard of annular pad is provided with the backup pad, the bottom of backup pad is provided with the spring, and the outer wall that the bottom of backup pad is located the pump shaft is provided with the sealing washer, the bottom of spring is provided with the mounting panel.

Preferably, the inner side of the supporting plate is provided with a through groove matched with the pump shaft, the annular pad is made of rubber, and the mounting plate is fixedly connected with the shaft sleeve through a bolt.

Preferably, the clamping seat is clamped and connected with the clamping plate, and the moisture absorption cotton is connected with the clamping seat through glue.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up backup pad, spring, annular pad and mounting panel, pack filler ring and filler garrulous packing into spacing sleeve, overlap backup pad and mounting panel at the outer wall of pump shaft, promote the backup pad and drive the annular pad and slide at the spacing sleeve inner wall, and with filler garrulous, filler ring contact, and fix mounting panel and axle sleeve through the bolt, then the backup pad is supported under the elasticity of spring, extrude filler garrulous, filler ring all the time, make filler garrulous, filler ring closely fit together all the time, keep high density, thereby can effectively seal the protection to liquid, effectively solved the easy not hard up problem that density diminishes of filler;

2. the utility model discloses a set up attaching plate, cardboard, cassette and moisture absorption cotton, will install the cover and attach the plate cover at the outer wall of pump shaft, make the cardboard on attaching plate top insert in the cassette of guard plate bottom to make the absorbent cotton laminating of cardboard and cassette inner wall, then can make six groups of cardboard and cassette block back, prevent that liquid from entering into the cavity, effectively solved the poor problem of leakproofness of pump shaft front end.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the shaft sleeve of the present invention;

FIG. 3 is an enlarged schematic view of A of FIG. 1 according to the present invention;

fig. 4 is an enlarged schematic view of B in fig. 1 according to the present invention.

In the figure: 1. a submersible pump housing; 2. a motor; 3. a bearing seat; 4. a pump shaft; 5. a gasket; 6. a mechanical seal structure; 7. a shaft sleeve; 8. a reinforcing structure; 801. a limiting sleeve; 802. mounting a plate; 803. a spring; 804. a support plate; 805. an annular pad; 806. a seal ring; 9. a cavity; 10. a protection plate; 11. a card holder; 12. moisture absorption cotton; 13. clamping a plate; 14. attaching a plate; 15. a water outlet pipe; 16. an impeller; 17. a water inlet frame; 18. crushing the filler; 19. a packing ring; 20. and (7) installing a sleeve.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a compound seal structure of immersible pump even axle, including immersible pump shell 1, the internally mounted of immersible pump shell 1 has motor 2, and immersible pump shell 1 bottom is provided with into water frame 17, immersible pump shell 1's inner wall is provided with guard plate 10, motor 2's output is provided with bearing frame 3, the inboard of bearing frame 3 is provided with pump shaft 4, the outer wall of pump shaft 4 is provided with sealed pad 5, and the below that the outer wall of pump shaft 4 is located sealed pad 5 is provided with axle sleeve 7, the bottom of axle sleeve 7 is provided with additional strengthening 8, the bottom of guard plate 10 is provided with cassette 11, the inner wall of cassette 11 is provided with moisture absorption cotton 12, the inboard of moisture absorption cotton 12 is provided with cardboard 13, the bottom of cardboard 13 is provided with rigging board 14, the bottom of rigging board 14 is provided with installation cover 20.

One side of immersible pump shell 1 is connected with outlet pipe 15, and the inside of immersible pump shell 1 is provided with cavity 9, and the outer wall of pump shaft 4 is provided with impeller 16, and outlet pipe 15 is used for the rivers play that impeller 16 carried, and cavity 9 is used for increasing the leakproofness of axle sleeve 7, and impeller 16 is used for driving liquid flow.

The outer wall of the sealing gasket 5 is provided with a mechanical sealing structure 6, the inside of the shaft sleeve 7 is provided with a packing fragment 18, the inner side of the packing fragment 18 is provided with a packing ring 19, the packing ring 19 is wound on the outer wall of the pump shaft 4, the mechanical sealing structure 6 is used for finally sealing the tail end of the pump shaft 4, and the packing fragment 18 and the packing ring 19 are used for filling the inside of the shaft sleeve 7 to prevent liquid from passing through.

The reinforcing structure 8 comprises a limiting sleeve 801, a mounting plate 802, a spring 803, a support plate 804, an annular pad 805 and a sealing ring 806, the inner wall of the shaft sleeve 7 is provided with the limiting sleeve 801, one side of the limiting sleeve 801 is provided with the annular pad 805, the inner side of the annular pad 805 is provided with the support plate 804, the bottom end of the support plate 804 is provided with the spring 803, the bottom end of the support plate 804 is positioned on the outer wall of the pump shaft 4 and is provided with the sealing ring 806, the packing ring 19 is wound on the outer wall of the pump shaft 4, the packing fragments 18 are filled in the limiting sleeve 801, the support plate 804 and the mounting plate 802 are sleeved on the outer wall of the pump shaft 4 at the moment and push the support plate 804 to move downwards to drive the annular pad 805 on the outer wall to slide on the inner wall of the limiting sleeve 801 and contact with the packing fragments 18 and the packing ring 19, the mounting plate 802 is pushed downwards to press the spring 803 to be downwards to be attached to the bottom end of the shaft sleeve 7, the bolt is inserted into the mounting plate 802 and the inner side of the shaft sleeve 7 at the moment, the mounting plate 802 and the shaft sleeve 7 are fixed with the support plate 804 under the elastic force of the spring 803 to press the packing fragments 18 and the packing ring 19 and keep the packing ring 19 and the packing ring 19 to be attached together, thereby effectively sealed and the protective liquid at high density.

The inner side of the supporting plate 804 is provided with a through groove matched with the pump shaft 4, the annular pad 805 is made of rubber, the mounting plate 802 is fixedly connected with the shaft sleeve 7 through a bolt, the supporting plate 804 and the mounting plate 802 are sleeved on the outer wall of the pump shaft 4 through the through groove on the inner side, the supporting plate 804 is pushed to move downwards, and the annular pad 805 on the outer wall is driven to slide on the inner wall of the limiting sleeve 801 so as to be in contact with the packing pieces 18 and the packing rings 19.

The cassette 11 is connected with cardboard 13 block, and the cotton 12 that absorbs moisture is connected through glue with cassette 11, overlaps the outer wall at pump shaft 4 with installation cover 20 and laminating board 14, makes the cardboard 13 on laminating board 14 top insert in the cassette 11 of protection plate 10 bottom to make cardboard 13 and the cotton 12 laminating of absorbing moisture of 11 inner walls of cassette, then can make six group's cardboard 13 and cassette 11 block backs, prevent that liquid from entering into in the cavity 9.

The working principle is as follows: the utility model discloses during the use, according to fig. 1-2, coil packing ring 19 at pump shaft 4's outer wall, and fill at the inside garrulous 18 of packing that fills of limit sleeve 801, overlap backup pad 804 and mounting panel 802 at pump shaft 4's outer wall this moment, and promote backup pad 804 and move down, make its annular pad 805 that drives the outer wall slide at limit sleeve 801 inner wall, and with garrulous 18 of packing, the contact of packing ring 19, push down mounting panel 802 down this moment, make its extrusion spring 803 move down to the bottom laminating with axle sleeve 7, then insert mounting panel 802 and axle sleeve 7 inboard with the bolt this moment, then it is fixed with mounting panel 802 and axle sleeve 7, backup pad 804 supports under the elasticity of spring 803, extrude the garrulous 18 of packing all the time, packing ring 19, make the garrulous 18 of packing, packing ring 19 is tightly laminated together all the time, keep high density, thereby can effectively seal protection to liquid.

According to the illustration in fig. 1 and 4, the mounting sleeve 20 and the attachment plate 14 are sleeved on the outer wall of the pump shaft 4, so that the clamping plate 13 at the top end of the attachment plate 14 is inserted into the clamping seat 11 at the bottom end of the protection plate 10, and the clamping plate 13 is attached to the absorbent cotton 12 on the inner wall of the clamping seat 11, so that after the six groups of clamping plates 13 and the clamping seat 11 are clamped, liquid is prevented from entering the cavity 9.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any introduction modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention will still fall within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a compound seal structure of immersible pump even axle, includes immersible pump shell (1), its characterized in that: the utility model discloses a pump, including immersible pump shell (1), the internally mounted of immersible pump shell (1) has motor (2), and immersible pump shell (1) bottom is provided with into water frame (17), the inner wall of immersible pump shell (1) is provided with guard plate (10), the output of motor (2) is provided with bearing frame (3), the inboard of bearing frame (3) is provided with pump shaft (4), the outer wall of pump shaft (4) is provided with sealed pad (5), and the below that the outer wall of pump shaft (4) is located sealed pad (5) is provided with axle sleeve (7), the bottom of axle sleeve (7) is provided with additional strengthening (8), the bottom of guard plate (10) is provided with cassette (11), the inner wall of cassette (11) is provided with moisture absorption cotton (12), the inboard of moisture absorption cotton (12) is provided with cardboard (13), the bottom of cardboard (13) is provided with attaching plate (14), the bottom of attaching plate (14) is provided with installation cover (20).

2. The composite sealing structure of the submersible pump connecting shaft according to claim 1, characterized in that: one side of immersible pump shell (1) is connected with outlet pipe (15), and the inside of immersible pump shell (1) is provided with cavity (9), the outer wall of pump shaft (4) is provided with impeller (16).

3. The composite sealing structure of the submersible pump connecting shaft according to claim 1, characterized in that: the mechanical sealing structure is characterized in that a mechanical sealing structure (6) is arranged on the outer wall of the sealing gasket (5), a packing fragment (18) is arranged inside the shaft sleeve (7), a packing ring (19) is arranged on the inner side of the packing fragment (18), and the packing ring (19) is wound on the outer wall of the pump shaft (4).

4. The composite sealing structure of the submersible pump connecting shaft according to claim 1, characterized in that: the reinforced structure (8) comprises a limiting sleeve (801), a mounting plate (802), a spring (803), a support plate (804), an annular pad (805) and a sealing ring (806), wherein the limiting sleeve (801) is arranged on the inner wall of the shaft sleeve (7), the annular pad (805) is arranged on one side of the limiting sleeve (801), the support plate (804) is arranged on the inner side of the annular pad (805), the spring (803) is arranged at the bottom end of the support plate (804), the sealing ring (806) is arranged on the outer wall, located on the pump shaft (4), of the bottom end of the support plate (804), and the mounting plate (802) is arranged at the bottom end of the spring (803).

5. The composite sealing structure of the submersible pump connecting shaft according to claim 4, characterized in that: the inner side of the supporting plate (804) is provided with a through groove matched with the pump shaft (4), the annular pad (805) is made of rubber, and the mounting plate (802) is fixedly connected with the shaft sleeve (7) through bolts.

6. The composite sealing structure of the submersible pump connecting shaft according to claim 1, characterized in that: the clamping seat (11) is clamped and connected with the clamping plate (13), and the moisture absorption cotton (12) is connected with the clamping seat (11) through glue.