CN212803711U

CN212803711U - Mechanical sealing device for large water pump

Info

Publication number: CN212803711U
Application number: CN202021125641.7U
Authority: CN
Inventors: 李洪宇; 李金实; 商智博
Original assignee: Fushun Rongxin Machinery Co ltd
Current assignee: Fushun Rongxin Machinery Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-03-26
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses a large-scale water pump mechanical seal device, including pump shaft and mechanical seal, outside a week of pump shaft is equipped with mechanical seal, and mechanical seal's one end is equipped with sealed lid, the inside that one side of sealed lid is located mechanical seal is equipped with sealed quiet ring, and sealed quiet ring passes through the connecting block and is connected with sealed rotating ring. Has the advantages that: the utility model discloses a sealed quiet ring seals with sealed rotating ring, be equipped with the spring between the sealed rotating ring, can carry the elasticity of sealed rotating ring through the spring, be convenient for strengthen the compressive property of sealed rotating ring, use through the cooperation of sealed quiet ring and sealed rotating ring, it is better to make sealed effect, can have and prevent that the water pump from taking place the seepage phenomenon, be favorable to improving the work efficiency of water pump, it is fixed to lock through the locking ring, be convenient for improve the stability of this device, make fixture block and draw-in groove separation through the anticlockwise rotation tie-plate, can directly take off mechanical seal device, the later stage of being convenient for is to the maintenance of water pump.

Description

Mechanical sealing device for large water pump

Technical Field

The utility model relates to a water pump seal technical field especially relates to a large-scale water pump mechanical seal device.

Background

Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, and is mainly used to transfer liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal. Liquids, gas mixtures, and liquids containing suspended solids may also be transported. The technical parameters of the water pump performance include flow, suction lift, shaft power, water power, efficiency and the like, and the water pump can be divided into a volume water pump, a vane pump and the like according to different working principles. The volumetric pump transfers energy by using the change of the volume of a working chamber, and the vane pump transfers energy by using the interaction of a rotary vane and water, and is of a centrifugal pump, an axial flow pump, a mixed flow pump and the like.

The existing mechanical sealing device of the water pump has certain limitations when in use, for example, the sealing effect is poor, the leakage phenomenon of the water pump is easy to occur, and the working efficiency of the water pump is reduced; the existing mechanical sealing device of the water pump has the problem of inconvenient disassembly and assembly, and is not beneficial to the maintenance of the water pump in the later period.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a large-scale water pump mechanical seal device possesses difficult emergence and leaks, and work efficiency is high, the advantage of the dismouting of being convenient for, and then solves the problem among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a large-scale water pump mechanical seal device, includes pump shaft and mechanical seal, outside a week of pump shaft is equipped with mechanical seal, and mechanical seal's one end is equipped with sealed lid, one side of sealed lid is located mechanical seal's inside and is equipped with sealed quiet ring, and sealed quiet ring passes through the connecting block and is connected with sealed rotating ring, one side of sealed rotating ring is equipped with the draw-in groove, and the inside joint of draw-in groove has the fixture block, the top of fixture block is run through mechanical seal surface and is equipped with the fastening disc, mechanical seal's the other end is equipped with first sealing ring and second sealing ring, and is equipped with the holding ring between first sealing ring and the second sealing ring, one side of holding ring is equipped with the locking ring.

Preferably, a spring is arranged between the sealing movable rings and is made of stainless steel metal.

Preferably, an elastic piece is arranged below the connecting block, and the elastic piece is attached to the connecting block.

Preferably, the sealing static ring is made of high-precision silicon carbide.

Preferably, the sealing movable ring is made of graphite.

Preferably, the rubber ring is attached to the locking ring.

(III) advantageous effects

Compared with the prior art, the utility model provides a large-scale water pump mechanical seal device possesses following beneficial effect:

(1) the utility model discloses in, one side of sealed lid is located mechanical seal's inside and is equipped with sealed quiet ring, and sealed quiet ring passes through the connecting block and is connected with sealed rotating ring, the below of connecting block is equipped with the elastic component, wherein seal through sealed quiet ring and sealed rotating ring, be equipped with the spring between the sealed rotating ring, can improve the elasticity of sealed rotating ring through the spring, be convenient for strengthen the compressive property of sealed rotating ring, use through the cooperation of sealed quiet ring and sealed rotating ring, it is better to make sealed effect, can have and prevent that the water pump from taking place the seepage phenomenon, be favorable to improving the work efficiency of water pump, locking fixedly through the locking ring, be convenient for improve the stability of this device.

(2) The utility model discloses in, one side of sealed rotating ring is equipped with the draw-in groove, and the inside joint of draw-in groove has the fixture block, and the top of fixture block is run through the mechanical seal surface and is equipped with the fastening disk, wherein makes fixture block and draw-in groove separation through anticlockwise rotation fastening disk, can directly take off mechanical seal device, the later stage of being convenient for is to the maintenance of water pump.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a mechanical sealing device for a large water pump according to the present invention;

fig. 2 is a schematic view of a sealing stationary ring structure of a large-scale water pump mechanical sealing device provided by the present invention;

fig. 3 is an enlarged view of a large water pump mechanical sealing device provided by the utility model.

Illustration of the drawings:

1. a mechanical seal; 2. a pump shaft; 3. a sealing cover; 4. an elastic member; 5. a positioning ring; 6. locking a ring; 7. sealing the static ring; 8. connecting blocks; 9. a spring; 10. sealing the movable ring; 11. a rubber ring; 12. a card slot; 13. fastening a disc; 14. a first seal ring; 15. a clamping block; 16. a second seal ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a mechanical sealing device for a large water pump includes a pump shaft 2 and a mechanical sealing member 1, the mechanical sealing member 1 is disposed around the outside of the pump shaft 2, a sealing cover 3 is disposed at one end of the mechanical sealing member 1, a stationary sealing ring 7 is disposed inside the mechanical sealing member 1 at one side of the sealing cover 3, the stationary sealing ring 7 is connected to a movable sealing ring 10 through a connecting block 8, a clamping groove 12 is disposed at one side of the movable sealing ring 10, a clamping block 15 is clamped inside the clamping groove 12, a fastening disc 13 is disposed at the top end of the clamping block 15 penetrating through the surface of the mechanical sealing member 1, a first sealing ring 14 and a second sealing ring 16 are disposed at the other end of the mechanical sealing member 1, a positioning ring 5 is disposed between the first sealing ring 14 and the second sealing ring 16, a locking ring 6 is disposed at one side of the positioning ring 5, a rubber ring 11 is, be equipped with spring 9 between the sealed rotating ring 10, can carry the elasticity of sealed rotating ring 10 through spring 9, the compressive property of the sealed rotating ring 10 of the reinforcing of being convenient for, use through the cooperation of sealed quiet ring 7 and sealed rotating ring 10, make sealed effect better, can have and prevent that the water pump from taking place the seepage phenomenon, be favorable to improving the work efficiency of water pump, it is fixed locking through locking ring 6, be convenient for improve the stability of this device.

In one embodiment, the springs 9 are arranged between the seal moving rings 10, and the springs 9 are made of stainless steel metal, wherein the elasticity of the seal moving rings 10 can be improved through the springs 9, so that the pressure resistance of the seal moving rings 10 can be enhanced.

In one embodiment, the elastic member 4 is arranged below the connecting block 8, and the elastic member 4 is attached to the connecting block 8, wherein the sealing effect between the static sealing ring 7 and the dynamic sealing ring 10 can be effectively increased through the connecting block 8 and the elastic member 4.

In one embodiment, the sealing stationary ring 7 is made of high-precision silicon carbide, and has wear resistance, corrosion resistance and better sealing effect.

In one embodiment, the seal moving ring 10 is made of graphite, which has the advantage of durability and pressure resistance.

In one embodiment, the rubber ring 11 is attached to the locking ring 6, wherein the locking ring 6 facilitates the locking and fixing of the device, which is beneficial to improving the stability of the device.

The working principle is as follows:

during the use, at first install, seal through sealed quiet ring 7 and sealed rotating ring 10 after the installation is accomplished, be equipped with spring 9 between the sealed rotating ring 10, can carry sealed rotating ring 10's elasticity through spring 9, be convenient for strengthen sealed rotating ring 10's compressive property, cooperation through sealed quiet ring 7 and sealed rotating ring 10 is used, it is better to make sealed effect, can prevent that the water pump from taking place the seepage phenomenon, be favorable to improving the work efficiency of water pump, it is fixed locking through locking ring 6, be convenient for improve this device's stability, make fixture block 15 and draw-in groove 12 separation through anticlockwise rotation mounting disc 13, mechanical seal device can directly take off, be convenient for the later stage to the maintenance of water pump.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A mechanical sealing device of a large-scale water pump comprises a pump shaft (2) and a mechanical sealing element (1), and is characterized in that the mechanical sealing element (1) is arranged on the periphery of the outside of the pump shaft (2), a sealing cover (3) is arranged at one end of the mechanical sealing element (1), a sealing static ring (7) is arranged inside the mechanical sealing element (1) on one side of the sealing cover (3), the sealing static ring (7) is connected with a sealing movable ring (10) through a connecting block (8), a clamping groove (12) is arranged on one side of the sealing movable ring (10), a clamping block (15) is clamped inside the clamping groove (12), a fastening disc (13) is arranged on the top end of the clamping block (15) in a penetrating mode on the surface of the mechanical sealing element (1), a first sealing ring (14) and a second sealing ring (16) are arranged at the other end of the mechanical sealing element (1), and a positioning ring (5) is arranged between the first, one side of the positioning ring (5) is provided with a locking ring (6), and one side of the locking ring (6) is provided with a rubber ring (11).

2. A large-scale water pump mechanical sealing device according to claim 1, characterized in that a spring (9) is arranged between the sealing movable rings (10), and the spring (9) is made of stainless steel.

3. A large-scale water pump mechanical sealing device according to claim 1, characterized in that an elastic member (4) is arranged below the connecting block (8), and the elastic member (4) is attached to the connecting block (8).

4. A large water pump mechanical sealing device according to claim 1, characterized in that the sealing static ring (7) is made of high-precision silicon carbide.

5. A large-scale water pump mechanical sealing device according to claim 1, characterized in that the sealing rotating ring (10) is made of graphite.

6. A mechanical sealing device for a large water pump according to claim 1, characterized in that the rubber ring (11) is attached to the locking ring (6).