CN210290764U - Double-end-face mechanical sealing element for axial flow pump - Google Patents
Double-end-face mechanical sealing element for axial flow pump Download PDFInfo
- Publication number
- CN210290764U CN210290764U CN201921407340.0U CN201921407340U CN210290764U CN 210290764 U CN210290764 U CN 210290764U CN 201921407340 U CN201921407340 U CN 201921407340U CN 210290764 U CN210290764 U CN 210290764U
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- Prior art keywords
- ring
- seat
- movable
- flow pump
- oil
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- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 42
- 238000003860 storage Methods 0.000 claims abstract description 20
- 230000003068 static effect Effects 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model relates to a mechanical seal technical field just discloses a two terminal surface mechanical seal for axial-flow pump, including quiet ring sum rotating ring, the outside fixedly connected with and end cover matched with joint ring of quiet ring, the oil storage chamber has been seted up to the inside of quiet ring, the top movable sleeve in oil storage chamber is equipped with the seat of oiling, the fixed intercommunication in top of the seat of oiling has the head of oiling, the top of oiling head runs through the oil storage chamber and extends to the top of quiet ring, movable chamber has been seted up to the medial surface of quiet ring. This axial-flow pump is with two terminal surface mechanical seal spare sets up the oil storage chamber through the inside at quiet ring and can carry out the oiling and then improve the lubricity between the contact surface and then improve the life of special-shaped sealing washer to the contact surface of quiet ring and rotating ring, can carry out the oil blanket of part moreover, can make quiet ring and rotating ring seal end holder and quiet ring carry out direct contact and then prevent the wearing and tearing of quiet ring through special-shaped sealing washer and ball.
Description
Technical Field
The utility model relates to a mechanical seal technical field specifically is a two terminal surface mechanical seal for axial-flow pump.
Background
The mechanical sealing part belongs to one of mechanical basic elements with precision and complicated structures, is a key part of equipment such as various pumps, reaction synthesis kettles, turbine compressors, submersible motors and the like, and the sealing performance and the service life of the mechanical sealing part depend on a plurality of factors, such as model selection, machine precision, correct installation and use and the like.
The wearing and tearing that the two terminal surface mechanical seal that use produced between quiet ring of in-process that uses at present are more serious, use softer material with quiet ring at present generally, if wearing and tearing appear when using generally are more serious to the wearing and tearing of quiet ring, it can to change quiet ring, nevertheless often dismantle the leakproofness that influences other positions of the pump body easily to the pump body, get out of charge, lead to the movable ring to drive quiet ring to move and then lead to the circumstances that quiet ring and end cover break away from to appear when sometimes rubbing is more serious moreover easily.
SUMMERY OF THE UTILITY MODEL
To prior art's not enough, the utility model provides an axial-flow pump is with two terminal surface mechanical seal spare possesses to last the oil feed lubrication and then reduce wearing and tearing between quiet ring and the rotating ring, can carry out the advantage of the reduction of rapid cooling assurance wearing and tearing to the seal end face, has solved the problem mentioned in the above background art.
The utility model provides a following technical scheme: a double-end-face mechanical sealing element for an axial flow pump comprises a static ring and a dynamic ring, wherein the outer side of the static ring is fixedly connected with a clamping ring matched with an end cover, an oil storage cavity is formed in the static ring, an oil injection seat is movably sleeved at the top of the oil storage cavity, an oil injection head is fixedly communicated with the top of the oil injection seat, the top of the oil injection head penetrates through the oil storage cavity and extends to the upper part of the static ring, a movable cavity is formed in the inner side face of the static ring, an oil outlet is fixedly communicated with the near end of the oil storage cavity, which is located at the inner side of the static ring, the other end of the oil outlet is fixedly communicated with the side face of the movable cavity, a ball is movably contacted with the side face of the movable cavity, a special-shaped sealing ring matched with the movable cavity is movably contacted with the other side face of the ball, a dynamic ring sealing end seat is fixedly connected with the side face of the dynamic ring, which is, the another side fixedly connected with spring holder of rotating ring, the side fixedly connected with compensating spring of spring holder, the positive screw thread of spring holder is installed and is prevented the round pin with compensating spring matched with, the outside fixedly connected with bellows of the medial surface of rotating ring, the lateral surface fixedly connected with ripple connecting shell of rotating ring, the surface of bellows and the medial surface of ripple connecting shell form the cooling water chamber.
Preferably, the number of the movable rings is two, and the two movable rings are symmetrically distributed by taking the center line of the compensation spring as a symmetry axis.
Preferably, the oil filling seat is a backflow prevention sealing seat.
Preferably, the side surface of the special-shaped sealing ring is provided with a clamping groove matched with the movable ring sealing end seat.
Preferably, the side surface of the cooling water cavity extends to the outer side surface of the movable ring sealing end seat.
Compared with the prior art, the utility model discloses possess following beneficial effect:
1. this axial-flow pump is with two terminal surface mechanical seal spare sets up the oil storage chamber through the inside at quiet ring and can carry out the oiling and then improve the lubricity between the contact surface and then improve the life of special-shaped sealing washer to the contact surface of quiet ring and rotating ring, can carry out the oil blanket of part moreover, can make quiet ring and rotating ring seal end holder and quiet ring carry out direct contact and then prevent the wearing and tearing of quiet ring through special-shaped sealing washer and ball.
2. This axial-flow pump is with two terminal surface mechanical seal spare seals compensating spring through the bellows, and then guarantees that compensating spring can not receive the corruption of some corrosive fluids and then prevents to hinder compensating spring and can't carry out corresponding compensation action, and the cooling water cavity that forms through ripple connection shell and bellows can absorb the heat that special-shaped seal circle friction produced fast and then reduce the deformation that the heat production of friction leads to special-shaped seal circle to produce.
Drawings
FIG. 1 is a sectional view of the present invention;
fig. 2 is the utility model discloses structure rotating ring quiet ring cooperation cross-sectional view.
In the figure: 1. a stationary ring; 2. a snap ring; 3. a moving ring; 4. an oil filling head; 5. a bellows; 6. a cooling water cavity; 7. a corrugated connecting shell; 8. a compensation spring; 9. an oil outlet; 10. a spring seat; 11. an anti-rotation pin; 12. a moving ring seal end seat; 13. a special-shaped sealing ring; 14. an oil injection seat; 15. an oil storage chamber; 16. a movable cavity; 17. and a ball.
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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a double-end-face mechanical seal for an axial-flow pump comprises a stationary ring 1 and a movable ring 3, a clamping ring 2 matched with an end cover is fixedly connected to the outer side of the stationary ring 1, an oil storage chamber 15 is arranged inside the stationary ring 1, an oil filling seat 14 is movably sleeved on the top of the oil storage chamber 15, the oil filling seat 14 is a backflow-preventing seal seat and prevents oil from flowing back from an oil filling head 4 to the fluid inside a pump body to pollute the pump body, the top of the oil filling seat 14 is fixedly communicated with the oil filling head 4, the top of the oil filling head 4 penetrates through the oil storage chamber 15 and extends to the upper side of the stationary ring 1, a movable chamber 16 is arranged on the inner side of the stationary ring 1, an oil outlet 9 is fixedly communicated with the proximal end of the oil storage chamber 15 located on the inner side of the stationary ring 1, the other end of the oil outlet 9 is fixedly communicated with the side of the movable chamber 16, a ball 17 is movably contacted with the side of the movable chamber 16, a special, the oil storage cavity 15 is arranged in the static ring 1, so that oil can be injected to the contact surfaces of the static ring 1 and the moving ring 3, the lubricating property between the contact surfaces is improved, the service life of the special-shaped sealing ring 13 is prolonged, partial oil sealing can be performed, the side surface of the moving ring 3, which is positioned at the near end of the static ring 1, is fixedly connected with a moving ring sealing end seat 12, the static ring 1 and the moving ring sealing end seat 12 can be in direct contact with the static ring 1 through the special-shaped sealing ring 13 and balls 17, so that the static ring 1 is prevented from being worn, the other side surface of the moving ring sealing end seat 12 is in contact with the other side surface of the special-shaped sealing ring 13, the side surface of the special-shaped sealing ring 13 is provided with a clamping groove matched with the moving ring sealing end seat 12, the clamping groove enables the special-shaped sealing ring 13 and the moving ring sealing end seat 12 to synchronously rotate, the other side surface of the moving ring, the number of the movable rings 3 is two, the two movable rings 3 are symmetrically distributed by taking the center line of the compensating spring 8 as a symmetry axis, an anti-rotating pin 11 matched with the compensating spring 8 is installed on the front face of the spring seat 10 in a threaded manner, the corrugated pipe 5 is fixedly connected to the outer side of the inner side face of the movable ring 3, the compensating spring 8 is sealed through the corrugated pipe 5, further, the compensating spring 8 is prevented from being corroded by corrosive fluid, further, the compensating spring 8 cannot be prevented from being hindered from performing corresponding compensating action, the corrugated connecting shell 7 is fixedly connected to the outer side face of the movable ring 3, the cooling water cavity 6 is formed by the outer surface of the corrugated pipe 5 and the inner side face of the corrugated connecting shell 7, the cooling water cavity 6 formed by the corrugated connecting shell 7 and the corrugated pipe 5 can rapidly absorb heat generated by friction of the special-shaped sealing ring 13, further, deformation of the special-shaped sealing ring 13 caused by heat generation due to friction, therefore, the cooling water cavity 6 is in close contact with the movable ring sealing end seat 12, and rapid cooling is facilitated.
The theory of operation, the rotating ring 3 moves along with the pivot when using, the rotating ring sealed end seat 12 follows the rotating ring 3 and is used in special-shaped sealing ring 13 this moment, the rotation of special-shaped sealing ring 13 makes it rub with the quiet ring, ball 17 moves in activity chamber 16 this moment, only produce the friction between the lateral surface of special-shaped sealing ring 13 and quiet ring 1 this moment, oil in the oil storage chamber 15 can enter into activity chamber 16 through oil-out 9 and lubricate the side of special-shaped sealing ring 13 here simultaneously, the inside water of cooling water chamber 6 simultaneously walks into the tropical that special-shaped sealing ring 13 produced fast and prevents that special-shaped sealing ring 13 from appearing warping.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a two terminal surface mechanical seal for axial-flow pump, includes quiet ring (1) and rotating ring (3), its characterized in that: the oil injection device is characterized in that the outer side of the static ring (1) is fixedly connected with a clamping ring (2) matched with an end cover, an oil storage cavity (15) is formed in the static ring (1), an oil injection seat (14) is movably sleeved at the top of the oil storage cavity (15), the top of the oil injection seat (14) is fixedly communicated with an oil injection head (4), the top of the oil injection head (4) penetrates through the oil storage cavity (15) and extends to the upper side of the static ring (1), a movable cavity (16) is formed in the inner side surface of the static ring (1), an oil outlet (9) is fixedly communicated with the near end of the oil storage cavity (15) positioned on the inner side of the static ring (1), the other end of the oil outlet (9) is fixedly communicated with the side surface of the movable cavity (16), another ball (17) is movably contacted with the side surface of the movable cavity (16), and a sealing ring (13) matched with the movable cavity (16) is movably contacted with the side surface of the, the side fixedly connected with rotating ring seal end seat (12) that rotating ring (3) are located quiet ring (1) near-end, the another side of rotating ring seal end seat (12) contacts with the another side of special-shaped seal circle (13), another side fixedly connected with spring holder (10) of rotating ring (3), side fixedly connected with compensating spring (8) of spring holder (10), the positive screw thread of spring holder (10) is installed and is prevented that round pin (11) with compensating spring (8) matched with, outside fixedly connected with bellows (5) of the medial surface of rotating ring (3), lateral surface fixedly connected with ripple connecting shell (7) of rotating ring (3), the surface of bellows (5) and the medial surface of ripple connecting shell (7) form cooling water cavity (6).
2. The double-ended mechanical seal for an axial flow pump according to claim 1, characterized in that: the number of the movable rings (3) is two, and the two movable rings (3) are symmetrically distributed by taking the center line of the compensation spring (8) as a symmetry axis.
3. The double-ended mechanical seal for an axial flow pump according to claim 1, characterized in that: the oil injection seat (14) is a backflow prevention sealing seat.
4. The double-ended mechanical seal for an axial flow pump according to claim 1, characterized in that: and the side surface of the special-shaped sealing ring (13) is provided with a clamping groove matched with the movable ring sealing end seat (12).
5. The double-ended mechanical seal for an axial flow pump according to claim 1, characterized in that: and the side surface of the cooling water cavity (6) extends to the outer side surface of the movable ring sealing end seat (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407340.0U CN210290764U (en) | 2019-08-28 | 2019-08-28 | Double-end-face mechanical sealing element for axial flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407340.0U CN210290764U (en) | 2019-08-28 | 2019-08-28 | Double-end-face mechanical sealing element for axial flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290764U true CN210290764U (en) | 2020-04-10 |
Family
ID=70063985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921407340.0U Expired - Fee Related CN210290764U (en) | 2019-08-28 | 2019-08-28 | Double-end-face mechanical sealing element for axial flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290764U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906366A (en) * | 2023-08-29 | 2023-10-20 | 哈尔滨东轻金属材料加工有限公司 | Mechanical sealing device for wear-resistant corrosion-resistant chemical pump |
| CN116906366B (en) * | 2023-08-29 | 2024-07-09 | 辽宁浩宇机械制造有限公司 | Mechanical sealing device for wear-resistant corrosion-resistant chemical pump |
-
2019
- 2019-08-28 CN CN201921407340.0U patent/CN210290764U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906366A (en) * | 2023-08-29 | 2023-10-20 | 哈尔滨东轻金属材料加工有限公司 | Mechanical sealing device for wear-resistant corrosion-resistant chemical pump |
| CN116906366B (en) * | 2023-08-29 | 2024-07-09 | 辽宁浩宇机械制造有限公司 | Mechanical sealing device for wear-resistant corrosion-resistant chemical pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 |