CN216279378U - Wear-resistant shaft seal type rotary sealing device - Google Patents
Wear-resistant shaft seal type rotary sealing device Download PDFInfo
- Publication number
- CN216279378U CN216279378U CN202122745469.6U CN202122745469U CN216279378U CN 216279378 U CN216279378 U CN 216279378U CN 202122745469 U CN202122745469 U CN 202122745469U CN 216279378 U CN216279378 U CN 216279378U
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- shaft
- rotating shaft
- shell
- rotating
- ceramic
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- 238000007789 sealing Methods 0.000 title claims abstract description 39
- 239000000919 ceramic Substances 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 4
- 239000007924 injection Substances 0.000 claims abstract description 4
- 239000004519 grease Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005461 lubrication Methods 0.000 abstract 1
- 239000011651 chromium Substances 0.000 description 10
- 238000011282 treatment Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model provides a wear-resistant shaft seal type rotary sealing device, which comprises a rotating shaft, a rotating shaft and a sealing ring, wherein the rotating shaft is connected with the rotating shaft through a rotating shaft; the rotating shaft is sleeved with a shell, bearings are arranged at the joints of the rotating shaft and the two ends of the shell, elastic check rings for holes are arranged outside the bearings, a straight-through type pressure oil injection cup communicated to the bearings is arranged on the upper side of the shell, an oil port is arranged on the lower side of the shell, a rotary GREEN for the shaft is arranged on one side of the shell at the position of a sealing surface where the shell is contacted with the rotating shaft, and ceramic Cr is arranged on one side of the rotating shaft203And (3) a layer. The utility model employs shaft at the sealing surface between the rotating shaft and the housingRotating GREEN and ceramic Cr203In the form of a layer, ceramic Cr203The layer can improve the hardness and the smooth finish of the sealing surface, has the function of self-lubrication, increases the wear resistance, reduces the rotating friction resistance with the rotating GREEN for the shaft, effectively protects the abrasion of the rotating shaft and the rotating GREEN for the shaft, is suitable for being used under the mixed working conditions of water, steam and the like, and can greatly prolong the service life.
Description
Technical Field
The utility model relates to the technical field of rotary joints, in particular to a wear-resistant shaft seal type rotary sealing device.
Background
Because the surface of a rotating shaft on a shaft seal type rotary joint which is mixed by water and steam in the market at present is not wear-resistant, namely, a sealing surface is often worn by a sealing ring (a rotary Glare ring for a shaft) to form a deep scratch, the sealing property of the sealing surface of the rotating shaft is influenced, leakage is caused, and the service life of the rotary joint is influenced. The surface treatment process of the sealing surface of the rotating shaft at present comprises the following steps: high-frequency treatment is carried out on the surface, rough grinding treatment is carried out on the outer circle, hard chromium is electroplated, and fine grinding treatment is carried out on the outer circle. The surface treatment process of the rotating shaft can only be maintained for 4-5 months under the working conditions of water and steam mixing and rotation, surface scratches can appear, and the deeper the scratches are, the leakage of the rotating joint is caused along with the prolonging of time.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model aims to provide a wear-resistant shaft seal type rotary sealing device and a machining process, so as to overcome the defects in the prior art.
In order to achieve the above object, the present invention provides a wear-resistant rotary seal device in the form of a shaft seal, comprising a rotary shaft; wherein, the rotating shaft is sleeved with a shell, two annular sealing surfaces where the shell is contacted with the rotating shaft are arranged, one side of the shell is provided with a rotating GREEN for the shaft, and one side of the rotating shaft is provided with ceramic Cr203A layer; bearings are arranged on the outer sides of the two annular sealing surfaces, the front and the rear parts support and fix the rotating shaft, elastic check rings for holes are arranged on the outer sides of the bearings and are used for fixing the bearings, and a straight-through type pressure oil injection cup communicated to the bearings is arranged on the upper side of the shell and is used for filling lubricating grease to the bearings periodically; an oil port is arranged at the lower side of the shell to be connected with a pipeline; the left end and the equipment connection of pivot, the right-hand member cover of pivot are equipped with back tail flange, and the downside of back tail flange is connected with the pivot through conical head holding screw, is provided with the parallel key between the upside of back tail flange and the pivot and compresses tightly the parallel key through flat head holding screw.
By adopting the technical scheme, the sealing surface of the shell, which is in contact with the rotating shaft, adopts the forms of the rotating GREEN for the shaft and the ceramic Cr203 layer, because the ceramic Cr203 material has high hardness, the ceramic Cr203 layer can improve the hardness of the sealing surface, is not easy to be worn by a rotating Grey ring for a shaft, improves the wear resistance, and the ceramic Cr203 layer improves the smoothness of the sealing surface and reduces the rotating friction resistance with the rotating GREEN for the shaft, thereby reducing the abrasion of the rotating GREEN for the shaft, because the ceramic Cr203 layer has a certain porosity, certain moisture can be stored in the pores, therefore, the rotating shaft and the rotating GREEN for the shaft can play a self-lubricating role when rotating, the phenomenon of dry friction of the sealing surface is prevented, the abrasion of the rotating shaft and the rotating GREEN for the shaft is effectively protected, the rotating shaft and the rotating GREEN for the shaft are suitable for being used under the mixed working conditions of water, steam and the like, and the service life can be greatly prolonged.
As a further description of the wear-resistant shaft seal type rotary seal device of the present invention, the present invention is preferably applied toOptionally, ceramic Cr203The length of the layer is greater than the cross-sectional diameter of the rotary GREEN for the shaft, so that the ceramic Cr is203The layer is covered outside the rotating Grey circle for the shaft.
As a further illustration of the wear-resistant rotary seal of the shaft seal type according to the utility model, the ceramic Cr is preferably used203The thickness of the layer was 0.25 mm.
In order to realize another purpose of the utility model, the utility model also provides a processing technology of the abrasion-resistant shaft seal type rotary sealing device, one side of the rotating shaft is grooved and the single side of the rotating shaft is 0.25mm deep at two annular sealing surfaces where the shell is contacted with the rotating shaft, and ceramic Cr is sprayed at the groove203To form ceramic Cr203Layer of and facing ceramic Cr203The layer is subjected to fine grinding of the outer circle and multiple polishing treatments.
As a further illustration of the process according to the utility model, the ceramic Cr is preferably selected203The layer has a porosity of 6%.
As a further illustration of the process according to the utility model, the ceramic Cr is preferably selected203The surface hardness of the layer is HV 900-1000.
The utility model has the beneficial effects that: the utility model adopts the form of a rotary GREEN for a shaft and a ceramic Cr203 layer at the sealing surface of the shell contacted with the rotating shaft, because the ceramic Cr203 material has high hardness, the ceramic Cr203 layer can improve the hardness of the sealing surface, is not easy to be worn by a rotating Grey ring for a shaft, improves the wear resistance, and the ceramic Cr203 layer improves the smoothness of the sealing surface and reduces the rotating friction resistance with the rotating GREEN for the shaft, thereby reducing the abrasion of the rotating GREEN for the shaft, because the ceramic Cr203 layer has a certain porosity, certain moisture can be stored in the pores, therefore, the rotating shaft and the rotating GREEN for the shaft can play a self-lubricating role when rotating, the phenomenon of dry friction of the sealing surface is prevented, the abrasion of the rotating shaft and the rotating GREEN for the shaft is effectively protected, the rotating shaft and the rotating GREEN for the shaft are suitable for being used under the mixed working conditions of water, steam and the like, and the service life can be greatly prolonged.
Drawings
FIG. 1 is a schematic representation of the construction of a wear resistant shaft seal type rotary seal assembly of the present invention;
fig. 2 is a partial enlarged view of the point i in fig. 1.
Detailed Description
To further understand the structure, characteristics and other objects of the present invention, the following detailed description is given with reference to the accompanying preferred embodiments, which are only used to illustrate the technical solutions of the present invention and are not to limit the present invention.
As shown in fig. 1 and 2, a wear-resistant rotary seal device in the form of a shaft seal includes a rotating shaft 1; wherein, a shell 5 is sleeved outside the rotating shaft 1, a rotary GREEN 4 for a shaft is arranged at one side of the shell 5 and a ceramic Cr is arranged at one side of the rotating shaft 1 at two annular sealing surfaces where the shell 5 is contacted with the rotating shaft 1203 A layer 12; bearings 6 are arranged on the outer sides of the two annular sealing surfaces, the front and the rear parts support and fix the rotating shaft 1, elastic check rings 2 for holes are arranged on the outer sides of the bearings 6, the bearings 6 are fixed by the elastic check rings 2 for holes, and a straight-through type pressure oil injection cup 3 communicated with the bearings 6 is arranged on the upper side of the shell 5 to periodically inject lubricating grease into the bearings 6; an oil port 11 is formed at the lower side of the shell 5 to connect a pipeline; the left end and the equipment connection of pivot 1, the right-hand member cover of pivot 1 is equipped with back tail flange 9, and the downside of back tail flange 9 is connected with pivot 1 through conical head holding screw 10, is provided with parallel key 8 between the upside of back tail flange 9 and the pivot 1 and compresses tightly parallel key 8 through flat head holding screw 7.
Because the ceramic Cr203 material has very high hardness, the ceramic Cr203 layer can improve the hardness of the sealing surface, is not easy to be worn by the rotating Glassy ring for the shaft, increases the wear resistance, improves the smoothness of the sealing surface, reduces the rotating friction resistance with the rotating Glassy ring for the shaft, and can reduce the wear of the rotating Glassy ring for the shaft.
Preferably, the ceramic Cr203The length of the layer 12 is greater than the cross-sectional diameter of the shaft-use rotary GREEN 4 so that the ceramic Cr is present203The layer 12 covers the shaft with the rotary greige ring 4. Ceramic Cr203The thickness of the layer 12 is 0.25 mm.
In addition, the processing technology of the abrasion-resistant shaft seal type rotary sealing device is that one side of the rotating shaft 1 is grooved at two annular sealing surfaces where the shell 5 is contacted with the rotating shaft 1, the depth of one side is 0.25mm, and ceramic Cr is sprayed at the groove203To form ceramic Cr203 Layer 12 and ceramic Cr203The layer 12 is subjected to outer circle finish grinding and multiple polishing treatments.
Since the ceramic Cr203 material has high hardness, the surface hardness of the ceramic Cr203 layer can reach HV900-1000, so that the ceramic Cr203 layer can improve the wear resistance of the sealing surface and is not easily worn by the rotating Grey circle for the shaft.
By applying Cr to ceramic203The layer 12 is subjected to outer circle finish grinding and multiple polishing treatments to greatly improve the finish of the sealing surface and reduce the frictional resistance of the sealing surface, thereby reducing the amount of wear, as shown in fig. 2.
The ceramic Cr203 material has certain porosity, namely ceramic Cr203The layer 12 has a porosity of 6%, so that certain moisture or steam can be stored in the pores, and thus, the self-lubricating function can be realized when the rotating shaft and the shaft rotate by using the rotating GREEN, the phenomenon of dry friction of the sealing surface is prevented, and the abrasion of the rotating shaft and the rotating GREEN for the shaft is effectively protected.
In conclusion, the shaft seal type rotary sealing device is suitable for being used under the mixed working conditions of water, steam and the like, and the service life can be greatly prolonged.
It should be noted that the above-mentioned contents and specific embodiments are intended to demonstrate the practical application of the technical solution provided by the present invention, and should not be construed as limiting the scope of the present invention. Various modifications, equivalent substitutions, or improvements may be made by those skilled in the art within the spirit and principles of the utility model. The scope of the utility model is to be determined by the appended claims.
Claims (3)
1. A wear-resistant rotary seal in the form of a shaft seal, characterized by comprising a rotating shaft (1); wherein,
a shell (5) is sleeved outside the rotating shaft (1), two annular sealing surfaces where the shell (5) is contacted with the rotating shaft (1) are arranged, one side of the shell (5) is provided with a rotating GREEN (4) for a shaft, and one side of the rotating shaft (1) is provided with ceramic Cr203A layer (12);
bearings (6) are arranged on the outer sides of the two annular sealing surfaces, the front and the rear parts support and fix the rotating shaft (1), elastic check rings (2) for holes are arranged on the outer sides of the bearings (6), the elastic check rings (2) for holes fix the bearings (6), and straight-through type pressure oil injection cups (3) communicated with the bearings (6) are arranged on the upper side of the shell (5) so as to periodically inject lubricating grease into the bearings (6); an oil port (11) is arranged at the lower side of the shell (5) to connect a pipeline;
the left end and the equipment of pivot (1) are connected, and the right-hand member cover of pivot (1) is equipped with back tail flange (9), and the downside of back tail flange (9) is connected with pivot (1) through conical head holding screw (10), is provided with parallel key (8) between the upside of back tail flange (9) and pivot (1) and compresses tightly parallel key (8) through flat head holding screw (7).
2. A wear resistant rotary seal in the form of a shaft seal as claimed in claim 1 wherein the ceramic Cr is203The length of the layer (12) is greater than the cross-sectional diameter of the rotating Grignard ring (4) for the shaft, so that the ceramic Cr is present203The layer (12) covers the shaft-use rotary gray ring (4).
3. A wear resistant rotary seal in the form of a shaft seal as claimed in claim 1 wherein the ceramic Cr is203The thickness of the layer (12) is 0.25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122745469.6U CN216279378U (en) | 2021-11-10 | 2021-11-10 | Wear-resistant shaft seal type rotary sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122745469.6U CN216279378U (en) | 2021-11-10 | 2021-11-10 | Wear-resistant shaft seal type rotary sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216279378U true CN216279378U (en) | 2022-04-12 |
Family
ID=81006741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122745469.6U Active CN216279378U (en) | 2021-11-10 | 2021-11-10 | Wear-resistant shaft seal type rotary sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216279378U (en) |
-
2021
- 2021-11-10 CN CN202122745469.6U patent/CN216279378U/en active Active
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