CN204267269U - Mechanical seal for pump - Google Patents
Mechanical seal for pump Download PDFInfo
- Publication number
- CN204267269U CN204267269U CN201420757225.7U CN201420757225U CN204267269U CN 204267269 U CN204267269 U CN 204267269U CN 201420757225 U CN201420757225 U CN 201420757225U CN 204267269 U CN204267269 U CN 204267269U
- Authority
- CN
- China
- Prior art keywords
- ring
- spring
- stationary
- outer shroud
- machine
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of mechanical seal for pump, comprise ring portion, stationary ring part and counterbalance spring, it is characterized in that being provided with stuffing box gland and spring thrust ring, described stuffing box gland is by inner ring, outer shroud and base ring composition, described exterior ring cap is outside in inner ring, outer ring, described base ring one end is fixedly connected with outer shroud, inner ring is fixedly connected with inner ring, the base ring end face circumference uniform distribution of described outer shroud and interior interannular is provided with location hole of the spring, described outer shroud and interior interannular are provided with spring thrust ring, described counterbalance spring one end and location hole of the spring inconsistent, the other end and spring thrust ring inconsistent, it is inconsistent that the machine that the described spring thrust ring the other end and sealing are inserted in stuffing box gland outer shroud and interior interannular seals stationary seat, the described machine envelope stationary seat the other end seals stationary ring with machine and is connected, there is novel structure, sealability is high, reliable, stable, the advantage such as increase the service life.
Description
Technical field
The utility model relates to mechanical engineering pump technical field, specifically a kind of mechanical seal for pump.
Background technique
At present, existing mechanical seal for pump is normally made up of ring portion and stationary ring part, ring portion and stationary ring part are enclosed within pump shaft, described ring portion is connected with spring seat by spring, to compensate the friction gap of pump shaft during turning rotating ring and stationary ring rubbing surface, as Chinese patent CN103244677, its deficiency is: because compensating element spring rotates with pump shaft and contacts with fed sheet of a media completely, easily be subject to the impact of pump running and transport pump medium, make spring easily aging, corrosion, shorten the working life of spring, have impact on the sealing effect of mechanical seal.
Summary of the invention
The purpose of this utility model solves above-mentioned the deficiencies in the prior art, provides the mechanical seal for pump that a kind of novel structure, sealability are high, reliable, stablize, increase the service life.
The utility model solves the technological scheme that its technical problem adopts:
A kind of mechanical seal for pump, comprise ring portion, stationary ring part and counterbalance spring, described ring portion comprises machine envelope rotating seat and machine envelope rotating ring, described stationary ring part comprises machine envelope stationary seat and machine envelope stationary ring, it is characterized in that being provided with stuffing box gland and spring thrust ring, described stuffing box gland is by inner ring, outer shroud and base ring composition, described exterior ring cap is outside in inner ring, outer ring, described base ring one end is fixedly connected with outer shroud, inner ring is fixedly connected with inner ring, the base ring end face circumference uniform distribution of described outer shroud and interior interannular is provided with location hole of the spring, described outer shroud and interior interannular are provided with spring thrust ring, described counterbalance spring one end and location hole of the spring inconsistent, the other end and spring thrust ring inconsistent, it is inconsistent that the machine that the described spring thrust ring the other end and sealing are inserted in stuffing box gland outer shroud and interior interannular seals stationary seat, the described machine envelope stationary seat the other end seals stationary ring with machine and is connected, be beneficial to avoid counterbalance spring under the rotary state of pump shaft along with rotation, and the substance contacted with fed sheet of a media is not enough, protect the counterbalance spring in mechanical seal, improve pump maintainability and stability.
The utility model can seal stationary seat and spring thrust interannular at machine and be provided with machine and seal stationary ring O type circle, and described machine envelope stationary ring O type circle the inner contacts with stuffing box gland inner ring, to reach the effect of good sealing effect further.
The utility model owing to adopting said structure or technique, have novel structure, sealability high, reliable, stablize, the advantage such as increase the service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Reference character: machine envelope rotating seat 1, machine envelope rotating ring 2, machine envelope stationary seat 3, machine envelope stationary ring 4, stuffing box gland 5, spring thrust ring 6, counterbalance spring 7, machine envelope stationary ring O type circle 8.
Embodiment
Below in conjunction with specific embodiment, the utility model is further illustrated:
As shown in Figure 1, a kind of mechanical seal for pump, comprise ring portion, stationary ring part and counterbalance spring 7, described ring portion comprises machine envelope rotating seat 1 and machine envelope rotating ring 2, described stationary ring part comprises machine envelope stationary seat 3 and machine envelope stationary ring 4, described machine envelope rotating ring 2 one end is sealed rotating seat 1 with machine and is fixedly connected with, the other end and machine seal stationary ring 4 and contact, it is characterized in that being provided with stuffing box gland 5 and spring thrust ring 6, described stuffing box gland 5 is by inner ring, outer shroud and base ring composition, described exterior ring cap is outside in inner ring, outer ring, described base ring one end is fixedly connected with outer shroud, inner ring is fixedly connected with inner ring, the base ring end face circumference uniform distribution of described outer shroud and interior interannular is provided with location hole of the spring, described outer shroud and interior interannular are provided with spring thrust ring 6, described counterbalance spring 7 one end and location hole of the spring inconsistent, the other end and spring thrust ring 6 inconsistent, it is inconsistent that the machine that described spring thrust ring 6 the other end and sealing are inserted in stuffing box gland outer shroud and interior interannular seals stationary seat 3, described machine envelope stationary seat 3 the other end seals stationary ring 4 with machine and is connected, be beneficial to avoid counterbalance spring 7 under the rotary state of pump shaft along with rotation, and the substance contacted with fed sheet of a media is not enough, protect the counterbalance spring 7 in mechanical seal, improve pump maintainability and stability.
The utility model can seal at machine and be provided with machine between stationary seat 3 and spring thrust ring 6 and seal stationary ring O type circle 8, and described machine envelope stationary ring O type circle 8 the inner contacts with stuffing box gland 5 inner ring, to reach the effect of good sealing effect further.
The utility model when mounted; the stuffing box gland 5 base ring the other end is fixed on gland; be fixedly connected with pump shaft axle sleeve through machine envelope rotating seat 1 the other end; in pump shaft running; machine envelope stationary ring 4 remains and seals the inconsistent state of rotating ring 2 with machine under the thrust of the counterbalance spring 7 of machine envelope stationary seat 3 rear end; substantially increase mechanical sealing performance; simultaneously; because counterbalance spring 7 is covered by stuffing box gland; make spring need not rotate with pump and not contact with fed sheet of a media; protect the counterbalance spring element in mechanical seal, improve pump maintainability and stability.
The utility model owing to adopting said structure or technique, have novel structure, sealability high, reliable, stablize, the advantage such as increase the service life.
Claims (2)
1. a mechanical seal for pump, comprise ring portion, stationary ring part and counterbalance spring, described ring portion comprises machine envelope rotating seat and machine envelope rotating ring, described stationary ring part comprises machine envelope stationary seat and machine envelope stationary ring, it is characterized in that being provided with stuffing box gland and spring thrust ring, described stuffing box gland is by inner ring, outer shroud and base ring composition, described exterior ring cap is outside in inner ring, outer ring, described base ring one end is fixedly connected with outer shroud, inner ring is fixedly connected with inner ring, the base ring end face circumference uniform distribution of described outer shroud and interior interannular is provided with location hole of the spring, described outer shroud and interior interannular are provided with spring thrust ring, described counterbalance spring one end and location hole of the spring inconsistent, the other end and spring thrust ring inconsistent, it is inconsistent that the machine that the described spring thrust ring the other end and sealing are inserted in stuffing box gland outer shroud and interior interannular seals stationary seat, the described machine envelope stationary seat the other end seals stationary ring with machine and is connected.
2. a kind of mechanical seal for pump according to claim 1, is characterized in that described machine envelope stationary seat and spring thrust interannular are provided with machine and seal stationary ring O type circle, and described machine envelope stationary ring O type circle the inner contacts with stuffing box gland inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757225.7U CN204267269U (en) | 2014-12-07 | 2014-12-07 | Mechanical seal for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757225.7U CN204267269U (en) | 2014-12-07 | 2014-12-07 | Mechanical seal for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267269U true CN204267269U (en) | 2015-04-15 |
Family
ID=52802140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420757225.7U Expired - Fee Related CN204267269U (en) | 2014-12-07 | 2014-12-07 | Mechanical seal for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267269U (en) |
-
2014
- 2014-12-07 CN CN201420757225.7U patent/CN204267269U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150415 Termination date: 20151207 |
|
| EXPY | Termination of patent right or utility model |