CN213540822U

CN213540822U - Sealing assembly of water pump

Info

Publication number: CN213540822U
Application number: CN202022443977.4U
Authority: CN
Inventors: 王昌杰; 王波
Original assignee: Sichuan Jiulong Seal Manufacturing Co ltd
Current assignee: Sichuan Jiulong Seal Manufacturing Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-25
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a seal assembly of water pump, including the adapter sleeve, first quiet ring, first rotating ring, flange and sealing member, the adapter sleeve is established on the main shaft, the fixed one end at the adapter sleeve of establishing of first rotating ring, first quiet ring cover is established on the adapter sleeve, be equipped with the sealing member between first rotating ring and the first quiet ring, the sealing member includes first seal cover and second seal cover, the terminal surface of the first rotating ring of first seal cover fixed connection, the first quiet ring terminal surface of second seal cover fixed connection, the butt of each other of one side that first seal cover is relative with the second seal cover, be equipped with first seal chamber between the inboard and the sealing member of first quiet ring inboard and the adapter sleeve lateral surface, first quiet ring lateral surface fixed connection flange, be equipped with the water filling port on the flange, water filling port and first seal chamber intercommunication, the technical problem who exists among the prior art has been solved, if: the sealed cavity is not convenient to clean.

Description

Sealing assembly of water pump

Technical Field

The utility model relates to a water pump shaft seal field is a seal assembly of water pump particularly.

Background

Mechanical seal (mechanical seal) refers to a device for preventing fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept in contact and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal. The elastic loading mechanism and the auxiliary seal are mechanical seals of metal corrugated pipes, which are called metal corrugated pipe seals. In light sealing, a rubber corrugated pipe is used as auxiliary sealing, the elasticity of the rubber corrugated pipe is limited, and a spring is generally required to be supplemented to meet the loading elasticity. "mechanical seal" is often referred to by one as "mechanical seal" for short.

The mechanical seal is a shaft seal device of a rotating machine. Such as centrifugal pumps, centrifuges, reaction kettles, compressors, and the like. Since the drive shaft extends through the inside and outside of the apparatus, there is a circumferential gap between the shaft and the apparatus through which the medium in the apparatus leaks out, and if the pressure in the apparatus is lower than atmospheric pressure, air leaks into the apparatus, so that a shaft seal device must be provided to prevent leakage. The shaft seal has many kinds, and the mechanical seal has the advantages of small leakage amount, long service life and the like, so the mechanical seal is the most important shaft sealing mode in the devices in the world. Mechanical seals, also called face seals, are defined in the relevant national standards as follows: "means for preventing fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, and which are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal. "

The pump among the prior art is under the condition that liquid medium has impurity, for example sewage treatment pump etc. its impurity enters into the seal chamber along with liquid under the condition of sealing member mechanical wear, and then makes the seal chamber in contaminated, and impurity causes the sealing member mechanical wear to aggravate, finally influences sealing performance, but among the prior art to the clearance washing in its seal chamber usually pull down the flange and wash, troublesome poeration and time-consuming, it exists: the sealing cavity is inconvenient to clean.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention is directed to: the utility model provides a seal assembly of water pump for solve the technical problem that exists among the prior art, if: the sealed cavity is not convenient to clean.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

a seal assembly of a water pump comprises a connecting sleeve, a first stationary ring, a first movable ring, a flange and a sealing element, the connecting sleeve is sleeved on a main shaft of the water pump, the first movable ring is fixedly sleeved at one end of the connecting sleeve, the first stationary ring is sleeved on the connecting sleeve, the sealing element is arranged between the first movable ring and the first stationary ring, the sealing element comprises a first sealing sleeve and a second sealing sleeve, the first sealing sleeve is fixedly connected with the end surface of the first movable ring, the second sealing sleeve is fixedly connected with the end face of the first stationary ring, one opposite sides of the first sealing sleeve and the second sealing sleeve are mutually abutted, a first sealing cavity is arranged between the inner side of the first stationary ring and the inner side of the sealing element and the outer side surface of the connecting sleeve, the outer side face of the first stationary ring is fixedly connected with the flange, a water filling port is arranged on the flange, and the water filling port is communicated with the first sealing cavity.

Further, still include go-between, spring, the quiet ring of second and second rotating ring, go-between fixed mounting be in the flange is kept away from one side of first quiet ring, the go-between is kept away from one side of first quiet ring is equipped with the ring channel, be equipped with a plurality of in the ring channel the spring, the quiet ring of second one side set up in the ring channel, spring both ends fixed connection the quiet ring of second with the go-between, the quiet ring opposite side of second with be equipped with between the second rotating ring the sealing member, the fixed cover of second rotating ring is established the adapter sleeve is kept away from the one end of first quiet ring.

Furthermore, a second sealing cavity is arranged between the sealing element between the second static ring and the second movable ring, the inner side of the second static ring, the inner side of the connecting ring and the outer side surface of the connecting sleeve, and the first sealing cavity is communicated with the second sealing cavity.

Further, a plurality of the springs are distributed in an annular array.

Furthermore, a shaft sleeve is installed on the main shaft, and the connecting sleeve is fixedly sleeved on the shaft sleeve.

Further, the flange is connected with a sealing box on the water pump.

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

1. through water filling port and the first sealed chamber intercommunication on the flange, so can pour into sealing liquid to first sealed intracavity into through the water filling port, can in time pour into the sealed liquid of discharging again or wash water and wash to first sealed intracavity through the water filling port, reach the beneficial effect of being convenient for wash sealed chamber.

2. When mechanical wear occurs through the first sealing sleeve and the second sealing sleeve, the springs extrude the sealing parts on two sides, so that the first sealing sleeve and the second sealing sleeve are always kept in a mutually abutted state, and the beneficial effect of timely filling mechanical wear of the sealing parts is achieved.

Drawings

Fig. 1 is an overall structure diagram of a seal assembly of a water pump according to the present invention;

list of reference numerals

1-a main shaft, 2-a shaft sleeve, 3-a connecting sleeve, 401-a first static ring, 402-a second static ring, 501-a first movable ring, 502-a second movable ring, 6-a connecting ring, 7-a spring, 801-a first sealing sleeve, 802-a second sealing sleeve, 9-a water filling port, 10-a flange and 11-a sealing box.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to fig. 1, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 is to be understood that the terms "upper", "lower", "front", "rear", "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 in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.

A seal assembly of a water pump comprises a main shaft 1, a connecting sleeve 3, a first stationary ring 401, a first movable ring 501, a flange 10 and a seal piece, wherein the connecting sleeve 3 is sleeved on the main shaft 1 of the water pump, the first movable ring 501 is fixedly sleeved at one end of the connecting sleeve 3, the first stationary ring 401 is sleeved on the connecting sleeve 3, the seal piece is arranged between the first movable ring 501 and the first stationary ring 401 and comprises a first seal sleeve 801 and a second seal sleeve 802, the first seal sleeve 801 is fixedly connected with the end surface of the first movable ring 501, the second seal sleeve 802 is fixedly connected with the end surface of the first stationary ring 401, one sides of the first seal sleeve 801 and the second seal sleeve 802 opposite to each other are abutted against each other, a first seal cavity is arranged between the inner side of the first stationary ring 401 and the outer side of the seal piece and the outer side of the connecting sleeve 3, the outer side of the first stationary ring 401 is fixedly connected with the flange 10, and a water injection port 9 is arranged on the flange 10, and the water injection port 9 is communicated with the first sealing cavity.

As shown in fig. 1, when the spindle 1 drives the connecting sleeve 3 to rotate, the first rotating ring 501 is further driven to rotate, and the first stationary ring 401 is fixed to the flange 10 and has a first sealing cavity with the outer side surface of the connecting sleeve 3, so that it remains stationary, that is, when the first rotating ring 501 rotates, the first sealing sleeve 801 and the second sealing sleeve 802 slide and rub relatively.

Because water filling port 9 and the first sealed chamber intercommunication on the flange 10, so can pour into sealing liquid to first sealed intracavity into through water filling port 9, when pump sending material impurity is more, for example desulfurization, ash removal, arrange thick liquid, ore dressing, coal washing and system aluminium etc. can in time pour into through water filling port 9 and discharge sealing liquid again or wash water and wash in first sealed intracavity, have reached the beneficial effect of being convenient for wash sealed chamber.

Further, the connecting device further comprises a connecting ring 6, a spring 7, a second stationary ring 402 and a second movable ring 502, wherein the connecting ring 6 is fixedly installed on one side, far away from the first stationary ring 401, of the flange 10, an annular groove is formed in one side, far away from the first stationary ring 401, of the connecting ring 6, a plurality of springs 7 are arranged in the annular groove, one side of the second stationary ring 402 is arranged in the annular groove, two ends of each spring 7 are fixedly connected with the second stationary ring 402 and the connecting ring 6, the sealing element is arranged between the other side of the second stationary ring 402 and the second movable ring 502, and the second movable ring 502 is fixedly sleeved at one end, far away from the first stationary ring 401, of the connecting sleeve 3.

Further, a second sealing cavity is arranged between the sealing element between the second stationary ring 402 and the second moving ring 502, the inner side of the second stationary ring 402, the inner side of the connecting ring 6 and the outer side surface of the connecting sleeve 3, and the first sealing cavity is communicated with the second sealing cavity.

The two sealing elements are respectively arranged between the first movable ring 501 and the first stationary ring 401 and between the second stationary ring 402 and the second movable ring 502, two sides of a first sealing sleeve 801 and two sides of a second sealing sleeve 802 in the sealing element between the second stationary ring 402 and the second movable ring 502 are respectively and fixedly connected with the second stationary ring 402 and the second movable ring 502, and one sides, close to each other, of the two sealing elements are also mutually abutted. The second rotating ring 502 rotates along with the main shaft 1, when the first sealing sleeve 801 and the second sealing sleeve 802 are mechanically abraded, the springs 7 extrude the sealing elements on the two sides, so that the first sealing sleeve 801 and the second sealing sleeve 802 are always in a mutually abutted state, and the beneficial effect of timely filling mechanical abrasion of the sealing elements is achieved.

And first seal chamber and second seal chamber intercommunication, the two forms confined cavity jointly, when water filling port 9 pours into the sealed liquid to the cavity of the two in, forms hydraulic pressure to play sealed effect, be equipped with the valve rather than the adaptation on the water filling port 9, with the circulation and the closure of control sealed liquid.

Further, a plurality of the springs 7 are distributed in an annular array.

Further, a shaft sleeve 2 is installed on the main shaft 1, and the connecting sleeve 3 is fixedly sleeved on the shaft sleeve 2.

Further, the flange 10 is connected with a sealing box 11 on the water pump, a liquid medium is arranged in the sealing box 11 during working, and the two sealing elements are used for preventing the liquid medium from leaking.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the embodiments in the above description, and the technical concept of the present invention can be within the scope of the present invention, and can be modified to various simple modifications, and these simple modifications all belong to the protection scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features. In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The sealing assembly of the water pump is characterized by comprising a connecting sleeve (3), a first static ring (401), a first rotating ring (501), a flange (10) and a sealing element, wherein the connecting sleeve (3) is sleeved on a main shaft (1) of the water pump, the first rotating ring (501) is fixedly sleeved at one end of the connecting sleeve (3), the first static ring (401) is sleeved on the connecting sleeve (3), the sealing element is arranged between the first rotating ring (501) and the first static ring (401), the sealing element comprises a first sealing sleeve (801) and a second sealing sleeve (802), the first sealing sleeve (801) is fixedly connected with the end face of the first rotating ring (501), the second sealing sleeve (802) is fixedly connected with the end face of the first static ring (401), and the opposite sides of the first sealing sleeve (801) and the second sealing sleeve (802) are mutually abutted, first quiet ring (401) inboard with the sealing member inboard with be equipped with first sealed chamber between adapter sleeve (3) the lateral surface, first quiet ring (401) lateral surface fixed connection flange (10), be equipped with water filling port (9) on flange (10), water filling port (9) with first sealed chamber intercommunication.

2. A seal assembly for a water pump according to claim 1, further comprising a connecting ring (6), a spring (7), a second stationary ring (402) and a second moving ring (502), the connecting ring (6) is fixedly arranged on one side of the flange (10) far away from the first stationary ring (401), one side of the connecting ring (6) far away from the first stationary ring (401) is provided with an annular groove, a plurality of springs (7) are arranged in the annular groove, one side of the second stationary ring (402) is arranged in the annular groove, the two ends of the spring (7) are fixedly connected with the second stationary ring (402) and the connecting ring (6), the sealing element is arranged between the other side of the second static ring (402) and the second movable ring (502), the second movable ring (502) is fixedly sleeved at one end, far away from the first stationary ring (401), of the connecting sleeve (3).

3. A seal assembly of a water pump according to claim 2, wherein a second seal cavity is arranged between the seal between the second stationary ring (402) and the second movable ring (502), the inner side of the second stationary ring (402) and the inner side of the connecting ring (6) and the outer side of the connecting sleeve (3), and the first seal cavity is communicated with the second seal cavity.

4. A seal assembly for a water pump according to claim 2, wherein a plurality of said springs (7) are arranged in an annular array.

5. The seal assembly of a water pump according to claim 1, wherein the main shaft (1) is provided with a shaft sleeve (2), and the connecting sleeve (3) is fixedly sleeved on the shaft sleeve (2).

6. A seal assembly for a water pump according to claim 1, wherein the flange (10) is connected to a seal box (11) on the water pump.