CN209638074U - A kind of centrifugal pump seal structure - Google Patents
A kind of centrifugal pump seal structure Download PDFInfo
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- CN209638074U CN209638074U CN201920416718.7U CN201920416718U CN209638074U CN 209638074 U CN209638074 U CN 209638074U CN 201920416718 U CN201920416718 U CN 201920416718U CN 209638074 U CN209638074 U CN 209638074U
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- ring
- pump housing
- wall
- rubber
- stationary
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Abstract
The utility model relates to sealing device technical fields, specially a kind of centrifugal pump seal structure, including shaft, the pump housing and axle sleeve, the outer surface of shaft is arranged with axle sleeve, and the outer surface of axle sleeve is fixedly installed with rotating ring, the outer surface of shaft is provided with the pump housing, and the pump housing is internally provided with stationary ring, horizontally arranged between the lateral surface of stationary ring and the inner wall of the pump housing to have spring；It has the beneficial effect that and sealing ring is arranged between stationary ring and axle sleeve by setting, tentatively sealed, stationary ring is pushed to the direction of rotating ring by setting spring, makes to be in close contact between stationary ring and rotating ring；By the way that rubber ring is arranged in rotating ring outer surface, the telescopic device support force outside to rubber ring, it is in close contact the groove of rubber ring and stationary ring inner wall, shaft is during rotation, even if groove inner wall has abrasion to rubber ring, support device can continue to give rubber ring thrust, guarantee that rubber ring contacts always with groove.
Description
Technical field
The utility model relates to sealing device correlative technology field, specially a kind of centrifugal pump seal structure.
Background technique
The centrifugal force that generates conveys the pump of liquid when centrifugal pump refers to by impeller rotation, the essential structure of centrifugal pump be by
Six parts composition is impeller, the pump housing, pump shaft, bearing, sealing ring, stuffing-box respectively.Centrifugal pump mostly uses machine in actual use
Tool sealing, that is, end face performs relative motion and reaches the mesh of sealing between the rotating ring being mounted on axis and the stationary ring being fixed on pump case
's.But practical effect show sealing element fail most positions be dynamic and static ring end face, centrifugation pump machine seals dynamic and static ring
It is common failure phenomenon that cracking, which occurs, in end face.For this purpose, the utility model proposes a kind of centrifugal pump seal structures for solving
State problem.
Utility model content
It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of centrifugal pump seal structure
Problem.
To achieve the above object, the utility model provides the following technical solutions: a kind of centrifugal pump seal structure, including turns
Axis, the pump housing and axle sleeve, the outer surface of the shaft are arranged with axle sleeve, and the outer surface of axle sleeve is fixedly installed with rotating ring, and described turn
The outer surface of axis is provided with the pump housing, and the pump housing is internally provided with stationary ring, between the lateral surface of the stationary ring and the inner wall of the pump housing
It is horizontally arranged to have spring, and the outer surface of the both ends of spring and the inner wall of the pump housing and stationary ring is welded and fixed, the stationary ring
The outer surface side opposite with spring opens up fluted, and the internal diameter of groove is identical as the internal diameter of stationary ring, and the rotating ring is located at recessed
The inside of slot, the outer surface of the rotating ring is fixedly installed with rubber ring, and the outer surface of rubber ring is contacted with the inner wall of groove.
Preferably, the outer surface center of the pump housing offers through-hole, turns the tip of the axis across through-hole, it is solid to turn the tip of the axis
Dingan County is equipped with impeller, and through-hole wall is provided with sealing ring, and the inner wall of stationary ring is provided with sealing ring.
Preferably, the outer ring surface of the stationary ring is contacted with the inner wall of the pump housing, and spring is compressed spring, and spring is provided with plural number
Group, it is evenly distributed in a ring in the outer surface of stationary ring.
Preferably, it is provided with telescopic device between the outer surface of the rotating ring and the inner wall of rubber ring, the two of telescopic device
End is adhesively fixed with the outer surface of rotating ring and the outer surface of rubber ring, and telescopic device is provided with plural groups, in the outer surface of rotating ring
It is arranged in a ring.
Preferably, the both ends of the rubber ring are openning shape, wherein diameter open at one end is greater than other end opening diameter, rubber
The small side of the opening diameter of cushion rubber and the outer surface of rotating ring are adhesively fixed.
Compared with prior art, the utility model has the beneficial effects that
1. sealing ring is arranged between stationary ring and axle sleeve by setting, tentatively sealed, by the way that spring is arranged by stationary ring
It is pushed to the direction of rotating ring, makes to be in close contact between stationary ring and rotating ring；
2. by rotating ring outer surface be arranged rubber ring, the telescopic device support force outside to rubber ring, make rubber ring with
The groove of stationary ring inner wall is in close contact, shaft during rotation, even if groove inner wall has abrasion, support device to rubber ring
It can continue to give rubber ring thrust, guarantee that rubber ring contacts always with groove.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the rotating ring perspective view of the utility model.
In figure: 1 shaft, 2 pump housings, 3 axle sleeves, 4 rotating rings, 5 stationary rings, 6 springs, 7 sealing rings, 8 grooves, 9 telescopic devices, 10 rubbers
Cushion rubber.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1 to Fig. 2 is please referred to, the utility model provides a kind of technical solution: a kind of centrifugal pump seal structure, such as Fig. 1 institute
Show, including shaft 1, the pump housing 2 and axle sleeve 3, the outer surface of shaft 1 is arranged with axle sleeve 3, and the outer surface of axle sleeve 3 is welded with rotating ring
4, the outer surface of shaft 1 is provided with the pump housing 2, and the outer surface center of the pump housing 2 offers through-hole, and the end of shaft 1 passes through through-hole, turns
The end of axis 1 is fixedly installed with impeller, and the pump housing 2 is internally provided with stationary ring 5, and through-hole wall is provided with sealing ring 7, stationary ring 5
Inner wall is provided with sealing ring 7, horizontally arranged between the lateral surface of stationary ring 5 and the inner wall of the pump housing 2 to have a spring 6, and spring 6
Both ends are welded and fixed with the inner wall of the pump housing 2 and the outer surface of stationary ring 5, and the outer ring surface of stationary ring 5 is contacted with the inner wall of the pump housing 2, spring 6
For compressed spring, spring 6 is provided with plural groups, evenly distributed in a ring in the outer surface of stationary ring 5, and spring 6 pushes stationary ring 5 to dynamic
Ring 4 is close, and the outer surface of stationary ring 5 side opposite with spring 6 opens up fluted 8, and the internal diameter of the internal diameter of groove 8 and stationary ring 5
Identical, rotating ring 4 is located at the inside of groove 8, and the outer surface of rotating ring 4 is provided with rubber ring 10, and the outer surface of rubber ring 10 with it is recessed
The inner wall of slot 8 contacts.
As shown in Fig. 2, being provided with telescopic device 9, telescopic device 9 between the outer surface of rotating ring 4 and the inner wall of rubber ring 10
Both ends be adhesively fixed with the outer surface of rotating ring 4 and the outer surface of rubber ring 10, telescopic device 9 is provided with plural groups, in rotating ring 4
Outer surface it is arranged in a ring, telescopic device 9 includes casing, telescopic rod and connecting spring, and telescopic rod is located in casing, and is stretched
It is fixedly connected between bar and casing by connecting spring, the both ends of rubber ring 10 are openning shape, wherein diameter open at one end is greater than
Other end opening diameter, the small side of the opening diameter of rubber ring 10 and the outer surface of rotating ring 4 are adhesively fixed, and rubber ring 10 is open
The big side of diameter is contacted with 8 inner wall of groove, and under the thrust of telescopic device 9, rubber ring 10 is strutted outward, guarantees rubber ring
Always gapless between 10 and groove.
Working principle: shaft 1 passes through the outer surface of the pump housing 2, and moving with dynamic and static ring 5 to the direction of rotating ring 4 for spring 6 is quiet
10 extruding force of rubber ring is given when by rotating ring 4 in 8 outside of groove of 5 inner wall of ring, and telescopic device 9 is shunk, when rubber ring 10 enters
When 8 inside of groove, telescopic device 9 gives 10 bounce of rubber ring, struts it, 10 outer surface of rubber ring and 8 inner wall of groove are close
Contact prevents liquid in the pump housing 2 from leaking into the pump housing 2 along the leakage of axle sleeve 3 or outside air.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of centrifugal pump seal structure, including shaft (1), the pump housing (2) and axle sleeve (3), it is characterised in that: the shaft (1)
Outer surface be arranged with axle sleeve (3), and the outer surface of axle sleeve (3) is fixedly installed with rotating ring (4), the outer surface of the shaft (1)
It is provided with the pump housing (2), and the pump housing (2) is internally provided with stationary ring (5), the lateral surface of the stationary ring (5) and the inner wall of the pump housing (2)
Between it is horizontally arranged have spring (6), and the outer surface of the inner wall of the both ends of spring (6) and the pump housing (2) and stationary ring (5) is welded
Fixed, the outer surface and spring (6) opposite side of the stationary ring (5) open up fluted (8), and the internal diameter of groove (8) with it is quiet
The internal diameter of ring (5) is identical, and the rotating ring (4) is located at the inside of groove (8), and the outer surface of the rotating ring (4) is fixedly installed with rubber
Cushion rubber (10), and the outer surface of rubber ring (10) is contacted with the inner wall of groove (8).
2. a kind of centrifugal pump seal structure according to claim 1, it is characterised in that: in the outer surface of the pump housing (2)
The heart offers through-hole, and the end of shaft (1) passes through through-hole, and the end of shaft (1) is fixedly installed with impeller, and through-hole wall is provided with
Sealing ring (7), the inner wall of stationary ring (5) are provided with sealing ring (7).
3. a kind of centrifugal pump seal structure according to claim 1, it is characterised in that: the outer ring surface of the stationary ring (5) with
The inner wall of the pump housing (2) contacts, and spring (6) is compressed spring, and spring (6) is provided with plural groups, is in ring in the outer surface of stationary ring (5)
Shape is evenly distributed.
4. a kind of centrifugal pump seal structure according to claim 1, it is characterised in that: the outer surface of the rotating ring (4) and
It is provided between the inner wall of rubber ring (10) telescopic device (9), the both ends of telescopic device (9) and the outer surface of rotating ring (4) and rubber
The outer surface of cushion rubber (10) is adhesively fixed, and telescopic device (9) is provided with plural groups, arranged in a ring in the outer surface of rotating ring (4).
5. a kind of centrifugal pump seal structure according to claim 1, it is characterised in that: the both ends of the rubber ring (10) are
Openning shape, wherein diameter open at one end is greater than other end opening diameter, the opening diameter of rubber ring (10) small side and rotating ring
(4) outer surface is adhesively fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920416718.7U CN209638074U (en) | 2019-03-29 | 2019-03-29 | A kind of centrifugal pump seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920416718.7U CN209638074U (en) | 2019-03-29 | 2019-03-29 | A kind of centrifugal pump seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209638074U true CN209638074U (en) | 2019-11-15 |
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ID=68497037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920416718.7U Active CN209638074U (en) | 2019-03-29 | 2019-03-29 | A kind of centrifugal pump seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209638074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906580A (en) * | 2023-08-17 | 2023-10-20 | 辽宁浩宇机械制造有限公司 | Adjustable mechanical sealing device for pump |
-
2019
- 2019-03-29 CN CN201920416718.7U patent/CN209638074U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906580A (en) * | 2023-08-17 | 2023-10-20 | 辽宁浩宇机械制造有限公司 | Adjustable mechanical sealing device for pump |
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