CN213541294U - Shaft sealing device of wastewater treatment water pump - Google Patents

Shaft sealing device of wastewater treatment water pump Download PDF

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Publication number
CN213541294U
CN213541294U CN202022436251.8U CN202022436251U CN213541294U CN 213541294 U CN213541294 U CN 213541294U CN 202022436251 U CN202022436251 U CN 202022436251U CN 213541294 U CN213541294 U CN 213541294U
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China
Prior art keywords
ring
static
movable
flange
sealing
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CN202022436251.8U
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Chinese (zh)
Inventor
舒畅
王昌杰
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Sichuan Jiulong Seal Manufacturing Co ltd
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Sichuan Jiulong Seal Manufacturing Co ltd
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Priority to CN202022436251.8U priority Critical patent/CN213541294U/en
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Abstract

The utility model discloses a shaft sealing device of a wastewater treatment water pump, which comprises a shaft sleeve, a movable ring, a static ring, a connecting ring, a flange, a movable sealing ring and a spring, wherein the shaft sleeve is sleeved on a main shaft of the water pump, the connecting ring is sleeved on the shaft sleeve, the movable ring, the static ring and the flange are all sleeved on the connecting ring, the connecting ring is fixedly connected with the movable ring, the static ring is arranged between the movable ring and the flange, one end of the movable ring, which is close to the static ring, is provided with a ring groove matched with the static ring, the opening direction of the ring groove faces towards the static ring, the spring and the movable sealing ring are both arranged in the ring groove, one end of the spring acts on one side of the ring groove, which is far away from the opening, the other end of the spring acts on one end of the movable sealing ring, the other end of the movable sealing ring is abutted against, the technical problems in the prior art are solved, such as: the sealing performance between the dynamic ring and the static ring is poor.

Description

Shaft sealing device of wastewater treatment water pump
Technical Field
The utility model relates to a water pump shaft seal field is a shaft seal device of waste water treatment 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. "
Water pump mechanical shaft seal among the prior art usually its sealing member comprises rotating ring and quiet ring, the rotating ring rotates along with the main shaft, mutual butt between rotating ring and the quiet ring, but because be the face-to-face contact between rotating ring and the quiet ring, during its sliding friction, sealing performance is whole to be decided by its terminal surface area size and butt degree, however two terminal surface contacts must take place the condition of liquid infiltration, especially in the environment of waste water pump, its particulate matter is many, can increase the mechanical wear of two terminal surfaces undoubtedly, it has: the sealing performance between the moving ring and the static ring is not good enough.
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 shaft seal device of waste water treatment water pump for solve the technical problem that exists among the prior art, if: the sealing performance between the dynamic ring and the static ring is poor.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a shaft sealing device of a wastewater treatment water pump comprises a shaft sleeve, a movable ring, a stationary ring, a connecting ring, a flange, a movable sealing ring and a spring, wherein the shaft sleeve is sleeved on a main shaft of the water pump, the connecting ring is sleeved on the shaft sleeve, the movable ring, the stationary ring and the flange are all sleeved on the connecting ring, the connecting ring is fixedly connected with the movable ring, the stationary ring is arranged between the movable ring and the flange, one end of the movable ring, which is close to the stationary ring, is provided with a ring groove matched with the stationary ring, the opening direction of the ring groove faces towards the stationary ring, the spring and the movable sealing ring are all arranged in the ring groove, one end of the spring acts on one side of the ring groove, which is far away from the opening of the ring groove, the other end of the spring acts on one end of the movable sealing ring, the other end of the movable sealing ring is abutted against one end of the stationary, the flange is arranged on one side, away from the moving ring, of the static ring, and one side, away from the moving ring, of the static ring is abutted to the flange.
Further, still include static sealing ring, the flange with have the clearance between the rotating ring, static sealing ring cover is located on the static ring and set up in the clearance, static sealing ring both ends respectively with the rotating ring with the flange butt.
Furthermore, an annular bulge is arranged at one end, away from the static ring, of the connecting ring, an installation groove with an opening facing towards the static ring is formed in the annular bulge, and one end, away from the static ring, of the movable ring is fixedly arranged in the installation groove.
Further, the static ring is in clearance fit with the connecting ring.
Further, the connecting ring is fixedly connected with the shaft sleeve.
The movable ring is sleeved on the connecting ring, the movable ring is arranged on the connecting ring, the limiting ring is connected with the connecting ring through the limiting screw, and one side, close to the flange, of the limiting ring is abutted to the flange.
Compared with the prior art, the utility model, following beneficial effect has:
1. through adopting the ring channel, make movable ring one end insert in the ring channel of quiet ring, increased its area of sliding friction for sealing performance improves, has reached the beneficial effect who improves sealing performance.
Drawings
FIG. 1 is an overall structure diagram of a shaft sealing device of a wastewater treatment water pump according to the present invention;
list of reference numerals
1-main shaft, 2-shaft sleeve, 3-dynamic ring, 4-static ring, 5-spring, 6-connecting ring, 7-flange, 8-limiting ring, 9-limiting screw, 10-dynamic sealing ring, 11-spring and 12-static sealing ring.
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 shaft sealing device of a wastewater treatment water pump comprises a shaft sleeve 2, a movable ring 3, a static ring 4, a connecting ring 6, a flange 7, a movable sealing ring 10 and a spring 11, wherein the shaft sleeve 2 is sleeved on a main shaft 1 of the water pump, the connecting ring 6 is sleeved on the shaft sleeve 2, the movable ring 3, the static ring 4 and the flange 7 are all sleeved on the connecting ring 6, the connecting ring 6 is fixedly connected with the movable ring 3, the static ring 4 is arranged between the movable ring 3 and the flange 7, one end of the movable ring 3 close to the static ring 4 is provided with an annular groove matched with the static ring 4, the opening direction of the annular groove faces towards the static ring 4, the spring 11 and the movable sealing ring 10 are both arranged in the annular groove, one end of the spring 11 acts on one side of the annular groove far away from the opening of the annular groove, the other end of the spring 11 acts on one end of the movable sealing, the other end of the movable sealing ring 10 is connected with one end of the static ring 4 in an abutting mode, one end of the static ring 4 connected with the movable sealing ring 10 in an abutting mode is arranged in the annular groove, the flange 7 is arranged on one side, away from the static ring 4, of the movable ring 3, and the static ring 4 is connected with one side, away from the movable ring 3, of the flange 7 in an abutting mode.
As shown in figure 1, the shaft sleeve 2 is in interference fit with the main shaft 1, the connecting ring 6 is fixedly connected with the shaft sleeve 2, when the main shaft 1 rotates, the shaft sleeve 2 and the connecting ring 6 rotate together and drive the movable ring 3 to rotate, the stationary ring 4 is stationary, the movable ring 3 is abutted against the stationary ring 4 and performs sliding friction with the stationary ring 4 to realize sealing, when the movable sealing ring 10 is subjected to mechanical wear, the spring 5 extends in time to supplement the wear loss, compared with the prior art that the movable ring 3 is in contact with two end faces of the stationary ring 4, the mechanical wear is large, and the sealing performance is poor due to the sliding friction, in the technical scheme, one end of the movable ring 3 is inserted into the annular groove of the stationary ring 3 by adopting the annular groove, so that the area of the sliding friction is increased, the sealing performance is improved, and the beneficial effect of improving the sealing performance is achieved, and in addition, in the form that the spring 11 is internally arranged in, when mechanical abrasion occurs, only the movable sealing ring 10 slides, and the fixed ring 4 and the movable ring 3 both keep the existing positions, thereby achieving the effects of being convenient to install and improving the stability.
Further, still include static sealing ring 12, flange 7 with have the clearance between the rotating ring 3, static sealing ring 12 cover is located on the static ring 4 and set up in the clearance, static sealing ring 12 both ends respectively with the rotating ring 3 with the flange 7 butt.
The diameter of flange 7 is greater than go-between 6, and its terminal surface is used for connecting the seal box of water pump, and it has the clearance near having between one side of rotating ring 3 and the rotating ring 3, is equipped with static sealing ring 12 in this clearance, and static sealing ring 12 is further, has improved whole sealing performance, prevents to leak from the junction of flange 7 and static ring 4.
Furthermore, an annular bulge is arranged at one end, away from the stationary ring 4, of the connecting ring 6, an installation groove with an opening direction facing the stationary ring 4 is arranged on the annular bulge, and one end, away from the stationary ring 4, of the movable ring 3 is fixedly arranged in the installation groove.
Further, the stationary ring 4 is in clearance fit with the connecting ring 6.
Further, the connecting ring 6 is fixedly connected with the shaft sleeve 2.
Further, the movable ring structure further comprises a limiting ring 8 and a limiting screw 9, the limiting ring 8 is sleeved at one end, far away from the movable ring 3, of the connecting ring 6, the limiting ring 8 is connected with the connecting ring 6 through the limiting screw 9, one side, close to the flange 7, of the limiting ring 8 is abutted to the flange 7, and the limiting ring 8 and the limiting screw 9 play a role in limiting the flange 7.
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 (6)

1. The shaft sealing device of the wastewater treatment water pump is characterized by comprising a shaft sleeve (2), a movable ring (3), a static ring (4), a connecting ring (6), a flange (7), a movable sealing ring (10) and a spring (11), wherein the shaft sleeve (2) is sleeved on a main shaft (1) of the water pump, the connecting ring (6) is sleeved on the shaft sleeve (2), the movable ring (3), the static ring (4) and the flange (7) are all sleeved on the connecting ring (6), the connecting ring (6) is fixedly connected with the movable ring (3), the static ring (4) is arranged between the movable ring (3) and the flange (7), one end of the movable ring (3) close to the static ring (4) is provided with a ring groove matched with the static ring (4), the opening direction of the ring groove faces towards the static ring (4), the spring (11) and the movable sealing ring (10) are both arranged in the ring groove, spring (11) one end acts on its open-ended one side is kept away from to the ring channel, spring (11) other end acts on move sealing ring (10) one end, move sealing ring (10) other end with quiet ring (4) one end butt, quiet ring (4) with the one end of moving sealing ring (10) butt set up in the ring channel, flange (7) set up in quiet ring (4) are kept away from one side of rotating ring (3), quiet ring (4) are kept away from one side of rotating ring (3) with flange (7) butt.
2. The shaft sealing device of the wastewater treatment water pump according to claim 1, further comprising a static sealing ring (12), wherein a gap is formed between the flange (7) and the dynamic ring (3), the static sealing ring (12) is sleeved on the static ring (4) and is arranged in the gap, and two ends of the static sealing ring (12) are respectively abutted against the dynamic ring (3) and the flange (7).
3. The shaft sealing device of a wastewater treatment water pump according to claim 1, characterized in that the end of the connecting ring (6) far away from the stationary ring (4) is provided with an annular bulge, the annular bulge is provided with a mounting groove with an opening facing the stationary ring (4), and the end of the movable ring (3) far away from the stationary ring (4) is fixedly arranged in the mounting groove.
4. A shaft seal arrangement of a wastewater treatment pump according to claim 1, characterized in that the stationary ring (4) is clearance fitted with the connecting ring (6).
5. A shaft seal arrangement of a wastewater treatment pump according to claim 1, characterized in that the connection ring (6) is fixedly connected to the shaft sleeve (2).
6. The shaft sealing device of the wastewater treatment water pump according to claim 1, further comprising a limiting ring (8) and a limiting screw (9), wherein the limiting ring (8) is sleeved on one end of the connecting ring (6) far away from the dynamic ring (3), the limiting ring (8) is connected with the connecting ring (6) through the limiting screw (9), and one side of the limiting ring (8) close to the flange (7) is abutted against the flange (7).
CN202022436251.8U 2020-10-28 2020-10-28 Shaft sealing device of wastewater treatment water pump Active CN213541294U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022436251.8U CN213541294U (en) 2020-10-28 2020-10-28 Shaft sealing device of wastewater treatment water pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022436251.8U CN213541294U (en) 2020-10-28 2020-10-28 Shaft sealing device of wastewater treatment water pump

Publications (1)

Publication Number Publication Date
CN213541294U true CN213541294U (en) 2021-06-25

Family

ID=76501343

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022436251.8U Active CN213541294U (en) 2020-10-28 2020-10-28 Shaft sealing device of wastewater treatment water pump

Country Status (1)

Country Link
CN (1) CN213541294U (en)

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