CN212177509U - Novel anti-leakage sealing device of centrifugal pump - Google Patents
Novel anti-leakage sealing device of centrifugal pump Download PDFInfo
- Publication number
- CN212177509U CN212177509U CN202020587337.8U CN202020587337U CN212177509U CN 212177509 U CN212177509 U CN 212177509U CN 202020587337 U CN202020587337 U CN 202020587337U CN 212177509 U CN212177509 U CN 212177509U
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- gland
- sealing
- pump shaft
- deformation compensation
- shell
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- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 210000004907 gland Anatomy 0.000 claims abstract description 31
- 238000003825 pressing Methods 0.000 claims abstract description 21
- 230000003068 static effect Effects 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000737 periodic effect Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model discloses a novel leak-proof sealing device of centrifugal pump relates to sealing device technical field. The utility model comprises a shell, a gland and a pump shaft, wherein the gland is fixed at one end of the shell through a screw, the pump shaft penetrates through the gland and the shell in sequence, the other end of the shell is fixed with an end cover through a screw, and one end of the pump shaft penetrates through the end cover and extends to the outside of the end cover; the pump shaft is sequentially sleeved with a pressing plate, a first deformation compensation piece, a second deformation compensation piece, a static sealing ring and a sealing boss from left to right. The utility model discloses when sealing up the gap between the gland of centrifugal pump and the pump shaft, can guaranteeing good leakproofness, simultaneously, can regularly adjust a plurality of sealing members, avoid using for a long time the back and lead to leaking because of the wearing and tearing that appear the sealing member, avoid the periodic replacement sealing member, improved the life and the production efficiency of sealing member, reduced use cost.
Description
Technical Field
The utility model belongs to the technical field of sealing device, especially, relate to a novel leak protection sealing device of centrifugal pump.
Background
Centrifugal pumps are common devices in oil construction sites. The centrifugal pump includes a housing, a gland, and a pump shaft. The casing 1 is the cavity formula structure, and the gland is fixed at the first end port of casing, has seted up the through-hole in the gland, and the pump shaft is arranged in the casing and the through-hole on the gland is passed to the pump shaft, and the inner wall and the pump shaft contact of the second end of casing.
In the operation process of the centrifugal pump, liquid can flow into the casing through a gap between the second end port of the casing and the pump shaft, the pump shaft of the centrifugal pump is also connected with other parts of the centrifugal pump, and in order to prevent the liquid in the casing from flowing out of the casing through the gap between the gland and the pump shaft and influencing the operation of other parts of the centrifugal pump, the gap between the pump shaft of the centrifugal pump and the gland needs to be sealed.
The existing sealing piece is easily abraded when being used, the service life of the sealing piece is short, leakage occurs at the sealing position, the sealing piece needs to be replaced, the replacement process is troublesome, the production efficiency is influenced, production is delayed due to the fact that the sealing piece is replaced by stopping the machine, the production efficiency is influenced, and the use cost of the centrifugal pump is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel leak-proof sealing device of centrifugal pump, through the combination use of clamp plate, first deformation compensating part, second deformation compensating part, can make the sealing member take place deformation through exerting a pressure when the sealing member wearing and tearing or sealed inseparable or use a terminal time after, increase seal area, solved current centrifugal pump sealing device and need receive wearing and tearing easily, life is short, needs periodic replacement, influences the problem of production.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a novel anti-leakage sealing device of a centrifugal pump, which comprises a shell, a gland and a pump shaft, wherein the gland is fixed at one end of the shell through screws, the pump shaft sequentially penetrates through the gland and the shell, the other end of the shell is fixed with an end cover through screws, and one end of the pump shaft penetrates through the end cover and extends to the outside of the end cover; a pressure plate, a first deformation compensation part, a second deformation compensation part, a static sealing ring and a sealing boss are sequentially sleeved on the pump shaft from left to right; a threaded rod is fixed on one surface of the pressing plate, one end of the threaded rod penetrates through the gland and is in threaded connection with a hexagon nut, and a conical pressing ring is fixed on the other surface of the pressing plate; one surface of the first deformation compensation part is provided with a conical clamping groove matched with the conical compression ring, one end face of a through hole matched with the pump shaft on the first deformation compensation part is provided with an inclined pressure application surface, and the peripheral surface of the first deformation compensation part is sleeved with a sealing sleeve contacted with the inner wall of the shell;
one end face of the second deformation compensation part is provided with an inclined pressure-bearing face matched with the inclined pressure-applying face.
Further, one surface of the sealing boss is fixedly connected with the end cover through a bolt.
Furthermore, two sealing grooves are formed in one surface of the shell, which is in contact with the gland, and a convex ring matched with the sealing grooves is fixedly arranged on one surface of the gland, which is in contact with the shell.
The utility model discloses following beneficial effect has:
the utility model discloses when sealing up the gap between gland and the pump shaft of centrifugal pump, through the clamp plate, first deformation compensating part, second deformation compensating part, the combined use of static sealing ring and sealed boss, can guarantee good leakproofness, simultaneously, can regularly adjust a plurality of sealing members through the threaded rod, avoid using for a long time the back and lead to leaking because of the wearing and tearing that appear the sealing member, avoid the periodic replacement sealing member, the life and the production efficiency of sealing member have been improved, use cost is reduced.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the novel anti-leakage sealing device of the centrifugal pump of the present invention;
FIG. 2 is a schematic view of a platen;
FIG. 3 is a schematic structural view of a first strain compensator;
fig. 4 is a structural view of the second deformation compensator.
In the drawings, the components represented by the respective reference numerals are listed below:
the device comprises a shell, a gland, a pump shaft, a cover, a pressing plate, a conical pressing ring, a first deformation compensation part, a conical clamping groove, a conical pressing surface, a conical pressing groove, a conical clamping groove, a conical pressing surface, a conical second deformation compensation part, a conical pressing surface, a.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention relates to a novel anti-leakage sealing device for a centrifugal pump, which comprises a casing 1, a gland 2, and a pump shaft 3, wherein the gland 2 is fixed at one end of the casing 1 by screws, the pump shaft 3 sequentially penetrates through the gland 2 and the casing 1, the other end of the casing 1 is fixed with an end cover 4 by screws, and one end of the pump shaft 3 penetrates through the end cover 4 and extends to the outside of the end cover 4.
The pump shaft 3 is sleeved with a pressure plate 5, a first deformation compensation part 6, a second deformation compensation part 7, a static sealing ring 8 and a sealing boss 9 in sequence from left to right.
A threaded rod 10 is fixed on one surface of the pressing plate 5, one end of the threaded rod 10 penetrates through the gland 2 and is in threaded connection with a hexagon nut 11, and a conical pressing ring 501 is fixed on the other surface of the pressing plate 5.
A conical clamping groove 601 matched with the conical pressing ring 501 is formed in one surface of the first deformation compensation part 6, an inclined pressing surface 602 is formed in one end face of a through hole matched with the pump shaft 3 in the first deformation compensation part 6, and a sealing sleeve 12 in contact with the inner wall of the shell 1 is sleeved on the surface of the first deformation compensation part 6.
One end surface of the second deformation compensating part 7 is provided with an inclined pressure bearing surface 701 matched with the inclined pressure applying surface 602.
The inclined surfaces of the inclined pressing surface 602 and the inclined pressure receiving surface 701 are inclined at an angle of 15 to 45 degrees.
Wherein, a surface of the sealing boss 9 is fixedly connected with the end cover 4 through a bolt.
Wherein, casing 1 has seted up twice seal groove with a surface of gland 2 contact, gland 2 with a fixed surface of casing 1 contact be provided with seal groove complex bulge loop, bulge loop internal surface and surface all be provided with seal groove complex sealing ring, further improve the leakproofness between casing 1 and the gland 2.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. The utility model provides a novel leak-proof sealing device of centrifugal pump, includes casing (1), gland (2), pump shaft (3), gland (2) are through the fix with screw in casing (1) one end, pump shaft (3) run through gland (2), casing (1) in proper order, its characterized in that:
an end cover (4) is fixed at the other end of the shell (1) through a screw, and one end of the pump shaft (3) penetrates through the end cover (4) and extends to the outside of the end cover (4);
a pressure plate (5), a first deformation compensation piece (6), a second deformation compensation piece (7), a static sealing ring (8) and a sealing boss (9) are sequentially sleeved on the pump shaft (3) from left to right;
a threaded rod (10) is fixed on one surface of the pressing plate (5), one end of the threaded rod (10) penetrates through the gland (2) and is in threaded connection with a hexagonal nut (11), and a conical pressing ring (501) is fixed on the other surface of the pressing plate (5);
a conical clamping groove (601) matched with the conical pressing ring (501) is formed in one surface of the first deformation compensation piece (6), an inclined pressing surface (602) is formed in one end face of a through hole, matched with the pump shaft (3), in the first deformation compensation piece (6), and a sealing sleeve (12) in contact with the inner wall of the shell (1) is sleeved on the circumferential surface of the first deformation compensation piece (6);
one end face of the second deformation compensation part (7) is provided with an inclined pressure bearing face (701) matched with the inclined pressure bearing face (602).
2. A novel leak-proof sealing device of a centrifugal pump according to claim 1, wherein a surface of the sealing boss (9) is fixedly connected with the end cover (4) by bolts.
3. A novel anti-leakage sealing device of a centrifugal pump according to claim 1, wherein two sealing grooves are formed on one surface of the casing (1) contacting the gland (2), and a convex ring matched with the sealing grooves is fixedly arranged on one surface of the gland (2) contacting the casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020587337.8U CN212177509U (en) | 2020-04-17 | 2020-04-17 | Novel anti-leakage sealing device of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020587337.8U CN212177509U (en) | 2020-04-17 | 2020-04-17 | Novel anti-leakage sealing device of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212177509U true CN212177509U (en) | 2020-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020587337.8U Active CN212177509U (en) | 2020-04-17 | 2020-04-17 | Novel anti-leakage sealing device of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212177509U (en) |
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2020
- 2020-04-17 CN CN202020587337.8U patent/CN212177509U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240105 Address after: 402760 B122, No. 92 Donglin Avenue (51-53 podium), Biquan Street, Bishan District, Chongqing Patentee after: Chongqing Haikong Technology Partnership Enterprise (L.P.) Address before: No. of Gongji, Hufu Town, Yixing City, Wuxi City, Jiangsu Province Patentee before: Wuxi Haite Machinery Co.,Ltd. |