CN213899878U - Sealing device for water pump shaft - Google Patents
Sealing device for water pump shaft Download PDFInfo
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- CN213899878U CN213899878U CN202022436244.8U CN202022436244U CN213899878U CN 213899878 U CN213899878 U CN 213899878U CN 202022436244 U CN202022436244 U CN 202022436244U CN 213899878 U CN213899878 U CN 213899878U
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Abstract
The utility model discloses a sealing device for a water pump shaft, which comprises a shaft sleeve, a movable ring, a static ring, a spring and a connecting ring, wherein the shaft sleeve is sleeved on a main shaft of a water pump, the outer side surface of one end of the shaft sleeve is provided with an annular bulge, the end surface of the annular bulge is provided with an annular clamping groove, the opening direction of the annular clamping groove is parallel to the main shaft, one end of the movable ring is arranged in the annular clamping groove, the end surface of the other end of the movable ring is provided with a sealing bulge, the static ring is sleeved on the shaft sleeve, one end surface of the static ring is provided with an annular sealing groove matched with the sealing bulge, the sealing bulge is arranged in the annular sealing groove, the connecting ring is sleeved on the shaft sleeve, the connecting ring is arranged at one end of the shaft sleeve far away from the annular bulge, the end surface of the connecting ring is provided with an annular mounting groove matched with the static ring, the other end of the static ring is arranged in the annular mounting groove, the spring is arranged in the annular mounting groove, one end of the spring is connected with the connecting ring, the technical problems in the prior art are solved, such as: the sealing performance under the sliding friction action is poor.
Description
Technical Field
The utility model relates to a water pump shaft seal field is a sealing device who is used for water pump shaft 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, and the rotating ring rotates along with the main shaft, mutual butt between rotating ring and the quiet ring, but because the rotating ring is the face-to-face contact with quiet ring between, during its sliding friction, sealing performance can receive the influence, causes the consequence that sealing performance descends, and it exists: the sealing performance under the action of sliding friction is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to: the sealing device for the water pump shaft is provided for solving the technical problems in the prior art, such as: the sealing performance under the sliding friction action is poor.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a sealing device for a water pump shaft comprises a shaft sleeve, a movable ring, a static ring, a spring and a connecting ring, wherein the shaft sleeve is sleeved on a main shaft of a water pump, an annular bulge is arranged on the outer side face of one end of the shaft sleeve, an annular clamping groove is formed in the end face of the annular bulge, the opening direction of the annular clamping groove is parallel to the main shaft, one end of the movable ring is arranged in the annular clamping groove, a sealing bulge is arranged on the end face of the other end of the movable ring, the static ring is sleeved on the shaft sleeve, an annular sealing groove matched with the sealing bulge is formed in the end face of one end of the static ring, the sealing bulge is arranged in the annular sealing groove, the connecting ring is sleeved on the shaft sleeve, the connecting ring is arranged at one end, away from the annular bulge, of the connecting ring, an annular mounting groove matched with the static ring is formed in the end face of the connecting ring, and the other end of the static ring is arranged in the annular mounting groove, the spring is arranged in the annular mounting groove, one end of the spring is connected with the end face of the static ring, and the other end of the spring is connected with the connecting ring.
Furthermore, the springs are provided with a plurality of springs which are distributed in an annular array.
Further, the movable ring is in interference fit with the annular clamping groove.
Furthermore, a sealing ring is arranged between the sealing bulge and the annular sealing groove.
Furthermore, a water injection port and a water outlet which are communicated with the annular mounting groove are arranged on the side surface of the connecting ring, and a sealing bolt is connected to the water outlet in a threaded manner.
Furthermore, a gap is formed between the inner side of the connecting ring and the outer side surface of the shaft sleeve, one end of the connecting ring, which is far away from the moving ring, is fixedly connected with the mounting ring, an installation annular groove matched with the mounting ring is formed in the outer side surface, which is far away from the moving ring, of the shaft sleeve, and the inner side of the mounting ring is fixedly sleeved in the installation annular groove.
Compared with the prior art, the utility model, following beneficial effect has:
1. through the sealing bulge on the movable ring, the sealing bulge is inserted into the annular sealing groove, so that the sealing area between the static ring and the movable ring is increased, the sealing performance is improved due to the matching form of the bulge and the groove, and the beneficial effect of improving the sealing performance is achieved.
2. Wash water and wash annular mounting groove through the water filling port injection, can effectively clear up the particulate matter, reached the beneficial effect of being convenient for clear up annular mounting groove.
Drawings
FIG. 1 is an overall structure diagram of the sealing device for a water pump shaft according to the present invention;
fig. 2 is an enlarged schematic view of a point a in fig. 1.
List of reference numerals
The device comprises a main shaft 1, a shaft sleeve 2, a movable ring 3, a stationary ring 4, a spring 5, a connecting ring 6, a water filling port 7 and a mounting ring 8.
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 sealing device for a water pump shaft comprises a shaft sleeve 2, a movable ring 3, a static ring 4, a spring 5 and a connecting ring 6, wherein the shaft sleeve 2 is sleeved on a main shaft 1 of a water pump, an annular bulge is arranged on the outer side face of one end of the shaft sleeve 2, an annular clamping groove is arranged on the end face of the annular bulge, the opening direction of the annular clamping groove is parallel to the main shaft 1, one end of the movable ring 3 is arranged in the annular clamping groove, a sealing bulge is arranged on the end face of the other end of the movable ring 3, the static ring 4 is sleeved on the shaft sleeve 2, an annular sealing groove matched with the sealing bulge is arranged on the end face of one end of the static ring 4, the sealing bulge is arranged in the annular sealing groove, the connecting ring 6 is sleeved on the shaft sleeve 2, the connecting ring 6 is arranged at one end, far away from the annular bulge, and the end face of the connecting ring 6 is provided with an annular mounting groove matched with the static ring 4, the other end of the static ring 4 is arranged in the annular mounting groove, the spring 5 is arranged in the annular mounting groove, one end of the spring 5 is connected with the end face of the static ring 4, and the other end of the spring 5 is connected with the connecting ring 6.
As shown in fig. 1, the shaft sleeve 2 is sleeved on the main shaft 1, the cross section of the shaft sleeve is in a "T" shape, the annular protrusion at one end of the shaft sleeve is provided with an annular clamping groove, one end of the movable ring 3 is arranged in the annular clamping groove and rotates with the main shaft 1, the connecting ring 6 is sleeved on the shaft sleeve 2, the stationary ring 4 and the movable ring 3 are arranged between the connecting ring 6 and the annular protrusion, and the stationary ring and the movable ring are both sleeved on the shaft sleeve 2.
As shown in figure 2, when the movable ring 3 rotates, the stationary ring 4 keeps relatively still, and the sealing bulge on the movable ring 3 is inserted into the annular sealing groove, so that the sealing area between the stationary ring 4 and the movable ring 3 is increased, the sealing performance is improved due to the matching form of the bulge and the groove, and the beneficial effect of improving the sealing performance is achieved.
Further, spring 5 is equipped with a plurality of, a plurality of spring 5 is annular array distribution, and spring 5 has in time promoted quiet ring 4 when having played 4 wearing and tearing of quiet ring in order to supply 4 mechanical wear's of quiet ring effect.
Further, the movable ring 3 is in interference fit with the annular clamping groove.
Furthermore, a sealing ring is arranged between the sealing bulge and the annular sealing groove, and the sealing performance of the sealing ring is further improved.
Further, a water injection port 7 and a water outlet which are communicated with the annular mounting groove are formed in the side face of the connecting ring 6, and a sealing bolt 9 is connected to the water outlet in a threaded mode.
As shown in fig. 1, because water filling port 7 and delivery port all communicate with the annular mounting groove, so from water filling port 7 injection cleaning water, can wash the annular mounting groove, and wash spring 5, cleaning water flows from the delivery port, it can block up the delivery port to screw up sealing bolt 9, in some more water pump service environment of granule, for example in coal-fired power plant flue gas desulfurization system, near the granule inevitability can permeate spring 5, make the annular mounting groove block up, spring 5 stretches out and draws back and is blockked, and wash the annular mounting groove through water filling port 7 injection cleaning water, can effectively clear up the granule, the beneficial effect of the annular mounting groove of being convenient for clear up has been reached.
Further, a gap is formed between the inner side of the connecting ring 6 and the outer side surface of the shaft sleeve 2, one end of the connecting ring 6, which is far away from the rotating ring 3, is fixedly connected with the mounting ring 8, an installation annular groove matched with the mounting ring 8 is formed in the outer side surface of one end of the shaft sleeve 2, which is far away from the rotating ring 3, and the inner side of the mounting ring 8 is fixedly arranged in the installation annular groove.
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. A sealing device for a water pump shaft is characterized by comprising a shaft sleeve (2), a moving ring (3), a static ring (4), a spring (5) and a connecting ring (6), wherein the shaft sleeve (2) is sleeved on a main shaft (1) of a water pump, an annular bulge is arranged on the outer side face of one end of the shaft sleeve (2), an annular clamping groove is arranged on the end face of the annular bulge, the opening direction of the annular clamping groove is parallel to the main shaft (1), one end of the moving ring (3) is arranged in the annular clamping groove, a sealing bulge is arranged on the end face of the other end of the moving ring (3), the static ring (4) is sleeved on the shaft sleeve (2), an annular sealing groove matched with the sealing bulge is arranged on the end face of one end of the static ring (4), the sealing bulge is arranged in the annular sealing groove, and the connecting ring (6) is sleeved on the shaft sleeve (2), the connecting ring (6) is arranged at one end, far away from the annular protrusion, of the shaft sleeve (2), the end face of the connecting ring (6) is provided with an annular mounting groove matched with the static ring (4), the other end of the static ring (4) is arranged in the annular mounting groove, the spring (5) is arranged in the annular mounting groove, one end of the spring (5) is connected with the end face of the static ring (4), and the other end of the spring (5) is connected with the connecting ring (6).
2. A sealing arrangement for a water pump shaft according to claim 1, characterised in that the spring (5) is provided in several numbers, several springs (5) being distributed in an annular array.
3. The sealing arrangement for a water pump shaft according to claim 1, characterized in that the rotating ring (3) is in interference fit with the ring groove.
4. The sealing arrangement for a water pump shaft of claim 1, wherein a sealing ring is disposed between said sealing embossment and said annular seal groove.
5. The sealing device for the water pump shaft according to claim 1, characterized in that a water injection port (7) and a water outlet which are communicated with the annular mounting groove are arranged on the side surface of the connecting ring (6), and a sealing bolt (9) is connected to the water outlet in a threaded manner.
6. The sealing device for the water pump shaft according to claim 1, wherein a gap is formed between the inner side of the connecting ring (6) and the outer side of the shaft sleeve (2), one end of the connecting ring (6), which is far away from the moving ring (3), is fixedly connected with a mounting ring (8), an outer side of one end of the shaft sleeve (2), which is far away from the moving ring (3), is provided with a mounting annular groove adapted to the mounting ring (8), and the inner side of the mounting ring (8) is fixedly sleeved in the mounting annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022436244.8U CN213899878U (en) | 2020-10-28 | 2020-10-28 | Sealing device for water pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022436244.8U CN213899878U (en) | 2020-10-28 | 2020-10-28 | Sealing device for water pump shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213899878U true CN213899878U (en) | 2021-08-06 |
Family
ID=77115359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022436244.8U Active CN213899878U (en) | 2020-10-28 | 2020-10-28 | Sealing device for water pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213899878U (en) |
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2020
- 2020-10-28 CN CN202022436244.8U patent/CN213899878U/en active Active
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