CN201187441Y - Non-flushing seal device for elastic element built-in pump - Google Patents
Non-flushing seal device for elastic element built-in pump Download PDFInfo
- Publication number
- CN201187441Y CN201187441Y CNU2008200808615U CN200820080861U CN201187441Y CN 201187441 Y CN201187441 Y CN 201187441Y CN U2008200808615 U CNU2008200808615 U CN U2008200808615U CN 200820080861 U CN200820080861 U CN 200820080861U CN 201187441 Y CN201187441 Y CN 201187441Y
- Authority
- CN
- China
- Prior art keywords
- pump
- ring
- elastic element
- rotating ring
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000011010 flushing procedure Methods 0.000 title claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052742 iron Inorganic materials 0.000 claims abstract description 25
- 210000004907 gland Anatomy 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract 5
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Mechanical Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a wash-free sealing device for an elastic element built-in pump, which belongs to the fluid machinery field. A static ring of the device is fixed on a pump cover, a rotating ring is axially connected with a pump shaft in a sliding manner, an elastic element arranged inside an inner chamber of the pump cover acts in the direction where the rotating ring presses the static ring, the pump shaft outside the pump cover is hinged with a flying iron, and a force transmitting end of the flying iron acts in the direction where the rotating ring is separated from the static ring. When the pump is in operation, under the centrifugal force of the flying iron and the action of the difference between pressures inside and outside a pump chamber, the rotating ring is separated from the static ring, thus further compressing the elastic element; when the pump stops, the centrifugal effect of the flying iron disappears; under the combined action of the reset force of the elastic element and medium pressure, the rotating ring and the static ring are tightly close to each other and closed, thereby achieving sealing effect. The device requires no washing and lubricating devices, has simple structure, reduces contact friction and prolongs the service life of a sealing element.
Description
Technical field
The utility model relates to a kind of elastic element internal pump with there not being the flushing seal arrangement, belongs to the shaft sealing field of fluid machinery.
Background technique
In research and patent in the past, some adopts transmission wedge wheel and envelope pressure ring to cooperate and realizes parking sealer; Some is recessing on rotating ring, establishes V-shaped ring on the stationary ring, utilizes fed sheet of a media pressure realization parking sealer in the pump; The fluid dynamic that some utilizes back impeller is subjected to displacement flexible sheet, and flexible sheet separates with annulus during driving, and flexible sheet and annulus compress mutually during parking, plays the axial parking sealing effect; Some installs guiding valve between seal casinghousing endoporus and rotating shaft, the rotary packing ring and the guiding valve exterior edge face that are fixed in the rotating shaft constitute Sealing.These parking sealer forms seldom adopt elastic component device, utilize pressure medium, fluid dynamic to realize sealing more, and run stability is not high, and some rotating ring does not separate with stationary ring, so structure is complicated, and contact friction is more, and seal durability is shorter.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of elastic element internal pump with there not being the flushing seal arrangement, it is simple in structure, can both guarantee intact sealing in the time of can and stopping in running, both can solve the contact friction wear problem of packing seal and mechanical seal, leakage in the time of can avoiding spiral seal to stop again also can reduce the sealing power consumpiton.
Solving the scheme that technical problem of the present utility model adopts is: stationary ring is fixed on the pump cover, rotating ring and pump shaft are being in axial sliding connection, the elastic element of pump cover inner chamber setting acts on the direction that rotating ring is pressed to stationary ring, the hinged iron that flies of pump shaft that pump cover is outer flies the iron force transfer end and acts on the direction that rotating ring breaks away from stationary ring.During the pump running, flying under iron centrifugal force and the effect of pump chamber external and internal pressure difference, rotating ring moves inward, and rotating ring and stationary ring are thrown off, and only depends on sub-propeller sealing in the pump chamber, and elastic element is further compressed, and significantly reduces friction; When pump stops, flying the iron centrifugal action and disappear, under the acting in conjunction of elastic element reposition force and pressure medium, rotating ring and stationary ring are adjacent to closure, play seal action.
Concrete technological scheme of the present utility model also comprises: the structure that is in axial sliding connection of rotating ring and pump shaft is, fixing flying-iron seat on the pump shaft outside pump cover, rotating ring is connected by slippage is secondary with flying-iron seat again, connecting promotion ring at the overhanging end of rotating ring, flying the iron force transfer end and pressing the inclined-plane that promotes ring with the inclined-plane; The linkage structure of elastic element and rotating ring is, elastic element one end is pressed on the rotating ring, and the other end is pressed on the elastic element bearing, and the elastic element bearing is fixed on the pump shaft of pump cover inner chamber.
Rotating ring adopts the material of self-lubricating property to make, and with the pump shaft opposing side auxiliary seal ring is set; Opposing side at stationary ring and gland also is provided with auxiliary seal ring; The structure of auxiliary seal ring adopt O shape, square or V-arrangement any.
What elastic element adopted is spring or bellows.
The beneficial effects of the utility model are:
The first, pump can both be realized intact sealing when running and parking, has guaranteed the long-term stability operation of equipment, has significantly reduced pump and has leaked waste and the environmental pollution that causes, has eliminated the potential safety hazard of equipment operation;
Rotating ring separated with stationary ring when the second, pump turned round, and had lowered because of fricative wearing and tearing, had greatly prolonged the operating life of Sealing, had reduced overhaul of the equipments and unplanned parking cost;
Three, this device has reduced flushing and lubricated cost without any need for flushing and lubricated;
Four, this apparatus structure is simple, and original pump seal chamber is changed not quite, and assembling is adjusted easily, and user cost is lower.
Description of drawings
Fig. 1 is the structural representation of this device.
Each label is represented successively among the figure: pump cover 1, elastic element bearing 2, elastic element 3, rotating ring 4, rotating ring auxiliary seal ring 5, stationary ring 6, stationary ring auxiliary seal ring 7, flying-iron seat 8, fly iron 9, promote ring 10, gland 11.
Embodiment
As shown in Figure 1, stationary ring 6 is fixed in the pilot hole of pump cover 1, fixing flying-iron seat 8 on the outer pump shaft of pump cover 1, rotating ring 4 is enclosed within on the flying-iron seat 8, forming the slippage pair by locating stud and flying-iron seat 8 is connected, the overhanging end of rotating ring 4 is connecting the promotion ring 10 that has the inclined-plane, and the other end end face of rotating ring 4 presses when pump stops on stationary ring 6.The a pair of iron 9 that flies is articulated on the flying-iron seat 8, and the force transfer end that flies iron 9 is pressing the inclined-plane that promotes ring 10.Elastic element 3 is positioned at gland 11 inboards, can adopt spring or bellows, together is loaded on the pump cover inner chamber with elastic element bearing 2, and elastic element bearing 2 is fixed on the pump shaft, and elastic element 3 one ends press elastic element bearing 2, and the other end is pressed on the rotating ring 4.When pump turns round, fly iron 9 and be subjected to centrifugal action, launch gradually, stir promotion ring 10 and move towards the directions that rotating ring 4 breaks away from stationary rings 6, pump chamber external and internal pressure difference also makes rotating ring 4 move to breaking away from stationary ring 6 directions simultaneously, thereby elastic element 3 is further compressed; Otherwise when pump stopped, under the acting in conjunction of elastic element 3 reposition forces and pressure medium, rotating ring 4 to extrapolation, was adjacent to closure with stationary ring 6 by elastic element 3.In order to guarantee better sealing effect, and do not need flushing and lubricated, rotating ring 4 adopts the material of self-lubricating properties to make, and with the pump shaft opposing side rotating ring auxiliary seal ring 5 is set; Opposing side at stationary ring 6 and gland 11 also is provided with stationary ring auxiliary seal ring 7; The structure of auxiliary seal ring adopt O shape, square or V-arrangement any.
Claims (4)
1, a kind of elastic element internal pump is with there not being the flushing seal arrangement, it is characterized in that: stationary ring is fixed on the pump cover, rotating ring and pump shaft are being in axial sliding connection, the elastic element of pump cover inner chamber setting acts on the direction that rotating ring is pressed to stationary ring, the hinged iron that flies of pump shaft that pump cover is outer flies the iron force transfer end and acts on the direction that rotating ring breaks away from stationary ring.
2, wash seal arrangement by the described elastic element internal pump of claim 1 with nothing, it is characterized in that: the structure that is in axial sliding connection of rotating ring and pump shaft is, fixing flying-iron seat on the pump shaft outside pump cover, rotating ring is connected by slippage is secondary with flying-iron seat again, connecting promotion ring at the overhanging end of rotating ring, flying the iron force transfer end and pressing the inclined-plane that promotes ring with the inclined-plane; The linkage structure of elastic element and rotating ring is, elastic element one end is pressed on the rotating ring, and the other end is pressed on the elastic element bearing, and the elastic element bearing is fixed on the pump shaft of pump cover inner chamber.
3, elastic element internal pump according to claim 2 is characterized in that with there not being the flushing seal arrangement: rotating ring adopts the material of self-lubricating property to make, and with the pump shaft opposing side auxiliary seal ring is set; Opposing side at stationary ring and gland also is provided with auxiliary seal ring; The structure of auxiliary seal ring adopt O shape, square or V-arrangement any.
4, elastic element internal pump according to claim 3 is not with there being the flushing seal arrangement, and it is characterized in that: what elastic element adopted is spring or bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200808615U CN201187441Y (en) | 2008-01-25 | 2008-01-25 | Non-flushing seal device for elastic element built-in pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200808615U CN201187441Y (en) | 2008-01-25 | 2008-01-25 | Non-flushing seal device for elastic element built-in pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201187441Y true CN201187441Y (en) | 2009-01-28 |
Family
ID=40310462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200808615U Expired - Lifetime CN201187441Y (en) | 2008-01-25 | 2008-01-25 | Non-flushing seal device for elastic element built-in pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201187441Y (en) |
-
2008
- 2008-01-25 CN CNU2008200808615U patent/CN201187441Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 650093 Kunming Road, Yunnan, No. 121 Wenchang Road, No. 68 Co-patentee after: Kunming Jiahe Science and Technology Co., Ltd. Patentee after: Kunming University of Science and Technology Address before: 650093 Kunming Road, Yunnan, No. 121 Wenchang Road, No. 68 Co-patentee before: Kunming Jiahe Science & Technology Development Co., Ltd. Patentee before: Kunming University of Science and Technology |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090128 |