CN216044589U - Mechanical seal for double-end-face pump with cast flange structure - Google Patents
Mechanical seal for double-end-face pump with cast flange structure Download PDFInfo
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- CN216044589U CN216044589U CN202023274436.XU CN202023274436U CN216044589U CN 216044589 U CN216044589 U CN 216044589U CN 202023274436 U CN202023274436 U CN 202023274436U CN 216044589 U CN216044589 U CN 216044589U
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Abstract
The utility model discloses a mechanical seal for a double-end-face pump with a cast flange structure, which comprises a rotating shaft, wherein a shaft sleeve is fixedly arranged outside the rotating shaft through a holding sleeve, an auxiliary moving ring and an auxiliary static ring are arranged on one side of a driving ring and one side of a main static ring, which are diagonally opposite to the rotating shaft, the auxiliary moving ring is also fixedly arranged on the shaft sleeve through a pin, the auxiliary static ring is also fixed on a second flange through a pin of a push ring, and two side faces of the second flange are hollow grooves. According to the utility model, the volume of the first flange is reduced by casting the special-shaped second flange, and the unnecessary part outside the second flange is directly removed, namely, two side surfaces of the second flange are hollow grooves; the weight and the volume of the second flange are reduced, the material cost of the mechanical seal is reduced by 10%, meanwhile, the first flange and the second flange are connected through the screws, the heat treatment process after welding and soldering is omitted, the process cost of the mechanical seal is reduced by 10%, and the competitiveness of the product is greatly improved.
Description
Technical Field
The utility model relates to the field of mechanical seal, in particular to a mechanical seal for a double-end-face pump with a cast flange structure.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept in fit and relatively slide under the action of fluid pressure and the elasticity of a compensation mechanism and the cooperation of an auxiliary seal. Two flanges are usually adopted to be installed in a matched mode in the mechanical seal, and the two flanges are assembled in a matched mode in the traditional mode, so that the weight is heavy, the size is large, and the cost of the whole mechanical seal is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a mechanical seal for a double-end-face pump with a cast flange structure, wherein the volume of a first flange is reduced by casting a special-shaped second flange, and the external useless part of the second flange is directly removed, namely two side faces of the second flange are hollowed-out grooves; the weight and the volume of the second flange are reduced, the material cost of the mechanical seal is reduced by 10%, meanwhile, the first flange and the second flange are connected through the screws, the heat treatment process after welding and soldering is omitted, the process cost of the mechanical seal is reduced by 10%, and the competitiveness of the product is greatly improved.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides a mechanical seal for a double-end-face pump with a cast flange structure, which comprises a rotating shaft, wherein a shaft sleeve is fixedly arranged outside the rotating shaft through a clamping sleeve, a driving ring is fixedly arranged on the shaft sleeve through a pin, the driving ring rotates with the rotating shaft along with the shaft sleeve, a first flange is fixedly connected to the outer side of the shaft sleeve, a second flange is fixedly connected to the end surface of the side face of the first flange, the first flange and the second flange are fixedly arranged on a pump cover through bolts, the pump cover is positioned on the outer side of the first flange, a main static ring is arranged on one side of the driving ring, the main static ring is fixedly arranged on the second flange through a pin of a push ring, a spring is connected to one side of the push ring, an auxiliary dynamic ring and an auxiliary static ring are arranged on one side of the driving ring and the main static ring, which is diagonally opposite to the rotating shaft, and the auxiliary dynamic ring is also fixedly arranged on the shaft sleeve through a pin, the auxiliary stationary ring is also fixed on the second flange through a pin of the push ring, and two side faces of the second flange are hollow grooves.
According to the preferable technical scheme of the mechanical seal for the double-end-face pump with the cast flange structure, the second flange is of an irregular special-shaped structure and is made of stainless steel.
The cast flange structure of the utility model is preferably a mechanical seal for a double-end-face pump, wherein the first flange and the second flange are connected by screws.
According to the preferable technical scheme of the mechanical seal for the double-end-face pump with the cast flange structure, the rear end part of the rotating shaft is connected with the impeller.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the volume of the first flange is reduced by casting the special-shaped second flange, and the unnecessary part outside the second flange is directly removed, namely, two side surfaces of the second flange are hollow grooves; the weight and the volume of the second flange are reduced, the material cost of the mechanical seal is reduced by 10%, meanwhile, the first flange and the second flange are connected through the screws, the heat treatment process after welding and soldering is omitted, the process cost of the mechanical seal is reduced by 10%, and the competitiveness of the product is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a view showing the construction of a second flange of the present invention;
in the figure: 1. a rotating shaft; 2. a clasping sleeve; 3. a shaft sleeve; 4. a moving ring; 5. a first flange; 6. a second flange; 7. a pump cover; 8. a stationary ring; 9. a push ring; 10. a spring; 11. an auxiliary movable ring; 12. a secondary stationary ring; 13. and (6) hollowing out the groove.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation. Wherein like reference numerals refer to like parts throughout.
In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1
Referring to fig. 1-2, the utility model provides a mechanical seal for a double-end-face pump with a cast flange structure, which comprises a rotating shaft 1, wherein a shaft sleeve 3 is fixedly arranged outside the rotating shaft 1 through a clamping sleeve 2, a driving ring 4 is fixedly arranged on the shaft sleeve 3 through a pin, the driving ring 4 rotates with the rotating shaft 1 along with the shaft sleeve 3, a first flange 5 is fixedly connected to the outer side of the shaft sleeve 3, a second flange 6 is fixedly connected to the side end face of the first flange 5, the first flange 5 and the second flange 6 are fixedly arranged on a pump cover 7 through bolts, the pump cover 7 is arranged on the outer side of the first flange 5, a main static ring 8 is arranged on one side of the driving ring 4, the main static ring 8 is fixed on the second flange 6 through a pin of a push ring 9, a spring 10 is connected to one side of the push ring 9, an auxiliary driving ring 11 and an auxiliary static ring 12 are arranged on one side of the driving ring 4 and the main static ring 8, which is diagonally opposite to the rotating shaft 1, the auxiliary movable ring 11 is also fixedly arranged on the shaft sleeve 3 through a pin, the auxiliary stationary ring 12 is also fixed on the second flange 6 through a pin of the push ring 9, and two side surfaces of the second flange 6 are hollow grooves 13.
The second flange 6 is of an irregular special-shaped structure, and the second flange 6 is made of 304 stainless steel.
The first flange 5 and the second flange 6 are connected by screws.
An impeller 14 is connected to the rear end of the shaft 1.
The first flange 5 and the shaft sleeve 3 are in contact with and pump corrosive materials which are made of corrosion-resistant 2205 stainless steel, and the second flange 6 is not in contact with and pump the materials which are made of ordinary 304 stainless steel.
Further, this device is one kind and is double end face mechanical seal, first flange 5 and second flange 6 pass through the bolt fastening on pump cover 7, main quiet ring 8, vice quiet ring 12 is all fixed on second flange 6 through the pin of throw-out collar 9, make it can not rotate, shaft sleeve 3 is fixed on pivot 1 through embracing tight cover 2, driving ring 4, vice rotating ring 11 all fixes on shaft sleeve 3 through the pin, follow shaft sleeve 3 and rotate with the pivot together, spring 10 promotes quiet ring (contains main quiet ring 8 and vice quiet ring 12) laminating on the rotating ring (contains driving ring 4 and vice rotating ring 11).
According to the utility model, the volume of the first flange 5 is reduced by casting the special-shaped second flange 6, and the useless part outside the second flange 6 is directly removed, namely, the two side surfaces of the second flange 6 are hollow grooves 13; the weight and the volume of the second flange 6 are reduced, the material cost of the mechanical seal is reduced by 10%, meanwhile, the first flange 5 and the second flange 6 are connected through screws, the heat treatment process after welding and soldering is omitted, the process cost of the mechanical seal is reduced by 10%, and the competitiveness of the product is greatly improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A mechanical seal for a double-end-face pump with a cast flange structure comprises a rotating shaft (1) and is characterized in that a shaft sleeve (3) is fixedly mounted outside the rotating shaft (1) through a clamping sleeve (2), a driving ring (4) is fixedly mounted on the shaft sleeve (3) through a pin, the driving ring (4) rotates with the rotating shaft (1) along with the shaft sleeve (3), a first flange (5) is fixedly connected to the outer side of the shaft sleeve (3), a second flange (6) is fixedly connected to the end face of the side face of the first flange (5), the first flange (5) and the second flange (6) are fixedly mounted on a pump cover (7) through bolts, the pump cover (7) is located on the outer side of the first flange (5), a main static ring (8) is arranged on one side of the driving ring (4), and the main static ring (8) is fixed on the second flange (6) through a pin of a push ring (9), one side of the push ring (9) is connected with a spring (10), one side of the oblique diagonal angle of the rotating shaft (1) of the driving ring (4) and the main static ring (8) is provided with an auxiliary moving ring (11) and an auxiliary static ring (12), the auxiliary moving ring (11) is also fixedly installed on the shaft sleeve (3) through a pin, the auxiliary static ring (12) is also fixed on the second flange (6) through a pin of the push ring (9), and two side faces of the second flange (6) are hollow grooves (13).
2. A cast flange configuration double end-face pump mechanical seal according to claim 1, wherein the second flange (6) is of irregular profiled configuration, the second flange (6) being made of 304 stainless steel.
3. A cast flange structural double end-face pump mechanical seal according to claim 1, characterised in that the first flange (5) and the second flange (6) are connected by screws.
4. A cast flange structural double end-face pump mechanical seal according to claim 1, characterised in that the rear end of the shaft (1) is connected to an impeller (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023274436.XU CN216044589U (en) | 2020-12-30 | 2020-12-30 | Mechanical seal for double-end-face pump with cast flange structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023274436.XU CN216044589U (en) | 2020-12-30 | 2020-12-30 | Mechanical seal for double-end-face pump with cast flange structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216044589U true CN216044589U (en) | 2022-03-15 |
Family
ID=80595833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023274436.XU Active CN216044589U (en) | 2020-12-30 | 2020-12-30 | Mechanical seal for double-end-face pump with cast flange structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216044589U (en) |
-
2020
- 2020-12-30 CN CN202023274436.XU patent/CN216044589U/en active Active
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