CN203685669U - Mechanical sealing structure of centrifugal pump - Google Patents
Mechanical sealing structure of centrifugal pump Download PDFInfo
- Publication number
- CN203685669U CN203685669U CN201320804914.4U CN201320804914U CN203685669U CN 203685669 U CN203685669 U CN 203685669U CN 201320804914 U CN201320804914 U CN 201320804914U CN 203685669 U CN203685669 U CN 203685669U
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- CN
- China
- Prior art keywords
- centrifugal pump
- rotating ring
- stationary ring
- ring
- mechanical seal
- 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 - Fee Related
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Abstract
The utility model relates to a mechanical sealing structure of a centrifugal pump, which comprises a rotating ring mounted on a pump shaft and a stationary ring mounted inside a machine sealing seat; the mechanical sealing structure of the centrifugal pump is characterized in that a groove is formed in the outer circumferential surface of the rotating ring, a rotating stopping rotor is arranged in the groove, the outer circumferential surface of the rotating stopping rotor is sleeved with a spring, and the spring presses the rotating ring into the stationary ring. A first sealing surface is formed in the contact end surface of the stationary ring and the machine sealing seat. A sunken part is arranged on an end surface on one side wherein the rotating ring is in contact with the stationary ring, and a second sealing surface is formed through that the sunken part is matched with the corresponding end surface of the stationary ring. The rotating ring is made of ethylene-propylene rubber. According to the mechanical sealing structure of the centrifugal pump, the quality of the mechanical sealing structure is improved, and the using quality of a water pump is enabled to be improved further.
Description
Technical field
The utility model relates to a kind of mechanical seal structure, and especially a kind of mechanical seal structure of centrifugal pump belongs to mechanical sealing technology field.
Background technique
Between the pump cover of centrifugal pump and pump shaft, be provided with mechanical seal, existing mechanical seal comprises stationary ring, rotating ring, drive sleeve and spring, stationary ring is fixed in machine envelope seat, drive sleeve is fixed on pump shaft, one group of spring is installed in drive sleeve, this group spring is resisted against rotating ring on stationary ring, and seal action gets up.Drive sleeve generally adopts rubber to make, and existing mechanical sealing element in use, the phenomenon of drive sleeve fracture often occurs.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of mechanical seal structure of centrifugal pump is provided, and improves the quality of mechanical seal structure, and the service property (quality) of water pump is further improved.
The technological scheme providing according to the utility model, the mechanical seal structure of described centrifugal pump, comprises the rotating ring being arranged on pump shaft and is arranged on the stationary ring in machine envelope seat; It is characterized in that: equipment is put groove on the outer peripheral surface of described rotating ring, spline sheet is set in groove, sheathed spring on spline sheet outer peripheral surface, rotating ring is pressed to stationary ring by spring.
Described stationary ring forms primary sealing area with the end face that contacts of machine envelope seat.
On the side end face contacting with stationary ring at described rotating ring, depressed part is set, this depressed part formation secondary sealing area that matches with the corresponding end face of stationary ring.Described rotating ring adopts ethylene propylene rubber to make.
The mechanical seal structure of centrifugal pump described in the utility model has improved the quality of mechanical seal structure, and the service property (quality) of water pump is further improved.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
As shown in Figure 1: the mechanical seal structure of described centrifugal pump comprises pump shaft 1, rotating ring 2, machine envelope seat 3, stationary ring 4, primary sealing area 5, secondary sealing area 6, groove 7, spline sheet 8, spring 9 etc.
As shown in Figure 1, the utility model comprises that the rotating ring 2 being arranged on pump shaft 1 and the machine that is arranged on seal the stationary ring 4 in seat 3, and stationary ring 4 forms primary sealing area 5 with the end face that contacts of machine envelope seat 3; On the side end face contacting with stationary ring 4 at described rotating ring 2, depressed part is set, this depressed part matches with the corresponding end face of stationary ring 4 and forms secondary sealing area 6; On the outer peripheral surface of described rotating ring 2, equipment is put groove 7, and spline sheet 8 is set in groove 7, sheathed spring 9 on spline sheet 8 outer peripheral surfaces, and rotating ring 2 is pressed to stationary ring 4 by spring 9;
Described rotating ring 2 adopts ethylene propylene rubber to make.
Working principle of the present utility model: mechanical seal structure described in the utility model is arranged on water pump cover inside, increase spline sheet 8 at the outer peripheral surface of rotating ring 2, the phenomenon of having avoided drive sleeve fracture in prior art, is improved the quality of mechanical seal structure and water pump.
Claims (4)
1. a mechanical seal structure for centrifugal pump, comprises the rotating ring (2) being arranged on pump shaft (1) and is arranged on the stationary ring (4) in machine envelope seat (3); It is characterized in that: equipment is put groove (7) on the outer peripheral surface of described rotating ring (2), spline sheet (8) is set in groove (7), sheathed spring (9) on spline sheet (8) outer peripheral surface, rotating ring (2) is pressed to stationary ring (4) by spring (9).
2. the mechanical seal structure of centrifugal pump as claimed in claim 1, is characterized in that: described stationary ring (4) forms primary sealing area (5) with the end face that contacts of machine envelope seat (3).
3. the mechanical seal structure of centrifugal pump as claimed in claim 1, is characterized in that: on the side end face contacting with stationary ring (4) at described rotating ring (2), depressed part is set, this depressed part matches and forms secondary sealing area (6) with the corresponding end face of stationary ring (4).
4. the mechanical seal structure of centrifugal pump as claimed in claim 1, is characterized in that: described rotating ring (2) adopts ethylene propylene rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804914.4U CN203685669U (en) | 2013-12-09 | 2013-12-09 | Mechanical sealing structure of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804914.4U CN203685669U (en) | 2013-12-09 | 2013-12-09 | Mechanical sealing structure of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685669U true CN203685669U (en) | 2014-07-02 |
Family
ID=51007577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320804914.4U Expired - Fee Related CN203685669U (en) | 2013-12-09 | 2013-12-09 | Mechanical sealing structure of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671230A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Mechanical sealing structure of centrifugal pump |
-
2013
- 2013-12-09 CN CN201320804914.4U patent/CN203685669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671230A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Mechanical sealing structure of centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20211209 |