CN104179718B - Sealing ring with improved structure - Google Patents
Sealing ring with improved structure Download PDFInfo
- Publication number
- CN104179718B CN104179718B CN201310196058.3A CN201310196058A CN104179718B CN 104179718 B CN104179718 B CN 104179718B CN 201310196058 A CN201310196058 A CN 201310196058A CN 104179718 B CN104179718 B CN 104179718B
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- sealing ring
- friction
- thrust ball
- impeller
- body wall
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Abstract
The invention relates to a sealing ring with improved structure. The sealing ring comprises a sealing ring body, inclined grooves and thrust balls, wherein the end surface of the inner circumference of a friction pair of the sealing ring is uniformly provided with a plurality of blind holes, the interior of each hole is provided with each thrust ball, and each thrust ball can realize rolling friction, so the original friction surface contact is changed into point and line contact, the friction drag is greatly reduced, the heat generated by friction is reduced, and the service life of the sealing ring is prolonged. The sealing ring has the advantage that the end surface of the outer periphery of the friction pair of the sealing ring is uniformly provided with a plurality of inclined grooves, the inclined grooves can rotate together with an impeller, and the liquid flows out of an outlet of the impeller to obtain centrifugal force, and is thrown out along the inclined grooves, so the internal leakage of a magnetic pump is effectively prevented, the heat generated by friction can be timely emitted, the abrasion degree of the sealing ring is reduced, and the working efficiency of the magnetic pump is improved.
Description
Technical field
The sealing ring of a kind of sealing ring of present invention design, particularly a kind of low-frictional force characteristic and low leakage characteristics, belongs to
The sealing field of fluid machinery.
Background technology
Gap between impeller and the pump case of fixation that the highly pressurised liquid flowed out from impeller passes through rotation is returned to impeller
Suction inlet, referred to as internal leakage.In order to reduce internal leakage, pump case is protected, being equipped with the housing corresponding with impeller eye can
The sealing ring of dismounting.After seal wears, increase axial gap, the lifting rate of pump is reduced, and pump work efficiency is reduced, and works as gap
More than certain value, magnetic drive pump is without work efficiency.
Sealing ring in the course of the work, in addition to undertaking the factors such as working temperature, pressure, corrosion, while also needing to undertake
Due to the temperature that sealing ring friction pair end face is produced because of friction, so as to exacerbate the abrasion of sealing ring friction pair end face, and then
Affect the sealing effectiveness and service life of sealing ring.Increase the width of the friction pair end face of sealing ring, by increasing capacitance it is possible to increase friction pair end
The intensity in face, alleviates abrasion, but can increase face pressure, while increasing frictional resistance and frictional heat；Reduce rubbing for sealing ring
The width of wiping degree end face, can reduce frictional resistance and reduce frictional heat, but can reduce the intensity of sealing ring friction pair, aggravate
Abrasion, affects the sealing effectiveness and service life of sealing ring.
The content of the invention
In order to solve the problems, such as that above-mentioned prior art is difficult to overcome, the invention provides a kind of improved sealing ring of structure,
The sealing ring has low-frictional force characteristic and low leakage characteristics.
The technical scheme that adopted to solve above-mentioned technical problem of the present invention is：A kind of improved sealing ring of structure, bag
Sealing ring A is included, sealing ring B, valley gutter 11, thrust ball 12, the sealing ring A places the groove 7 and interior snail body wall in outer snail body wall 1
In 2 groove 6.
As a further improvement on the present invention, the sealing ring A is uniformly provided with sealing ring A friction pair inner peripherys end face 8
Multiple blind holes, place thrust ball 12 in blind hole.
As a further improvement on the present invention, the thrust ball 12 is gas Pressure Sintered Silicon Nitride thrust ball.
As a further improvement on the present invention, the sealing ring A coordinates with spring assembly and installs, and the spring assembly is installed
At the rear portion of the groove 6 of the groove 7 and interior snail body wall 2 of outer snail body wall 1.
As a further improvement on the present invention, the spring assembly is little from coefficient of friction, corrosion resistance and good it is compound
Macromolecular material.
As a further improvement on the present invention, the sealing ring B is placed on the collar extension groove 4 of impeller 3 and the internal orifice groove of impeller 3
In 5, multiple valley gutters 11 are uniformly provided with sealing ring B friction pairs outer circumferential end face 13, the grooved of the valley gutter 11 is triangle,
The grooved process is simple, easily realizes.
As a further improvement on the present invention, 0~90 ° of 11 included angle scope of the valley gutter, fluting direction and impeller 3
Direction blade it is consistent.As a further improvement on the present invention, the sealing ring A the selection of materials be composite high-molecular material, institute
Sealing ring B the selection of materials are stated for the one kind in carborundum, silicon nitride and composite high-molecular material.From material wear-resistant, corrosion resistant,
Heatproof, comprehensive mechanical performance are good.
The invention has the beneficial effects as follows：The sealing ring of thrust ball 12 is used, frictional resistance has been reduced, friction has been reduced and is generated
Heat, extends the service life of sealing ring.When impeller 3 rotates with pump shaft, sealing ring B rotates with impeller 3, from impeller
The liquid of 3 outlet returns obtains centrifugal force because of the rotation of valley gutter 11, and is thrown out of along valley gutter 11, is effectively prevented magnetic force
" internal leakage " of pump, while after sealing ring A, B friction pair outer circumferential end face produces temperature because of sliding friction, heat can pass through
Valley gutter is distributed in time, reduces the degree of wear of sealing ring, so as to increased the sealing effectiveness of sealing ring, is increased the service life.
Because frictional resistance reduces, " internal leakage " is reduced, and improves the work efficiency of magnetic drive pump.
Description of the drawings
Fig. 1 is the position view of the present invention
Fig. 2 is sealing ring A structural representations
Fig. 3 is sealing ring B structure schematic diagram
Specific embodiment
Embodiment：A kind of improved sealing ring of structure, including sealing ring A, sealing ring B, valley gutter 11, thrust ball 12, institute
State sealing ring A to place in the groove 7 of outer snail body wall 1 and the groove 6 of interior snail body wall 2, the sealing ring A is in sealing ring A friction pairs
Circumferential end surfaces 8 are uniformly provided with multiple blind holes, and thrust ball 12 is placed in the blind hole, and the diameter of thrust ball 12 is consistent with blind hole depth,
Rolling friction between sealing ring A, B friction pair inner periphery end face is realized by thrust ball 12, by original face contact be changed to a little with
Linear contact lay, substantially reduces frictional resistance, reduces friction and generates heat, extends the service life of sealing ring.
The thrust ball 12 be gas Pressure Sintered Silicon Nitride thrust ball, the corrosion resistant of thrust ball 12 of this kind of materials for support, wearability
Can be good, it is often more important that its cold-resistant thermal impact, self lubricity and comprehensive mechanical performance are especially good, are hardly damaged, it is ensured that thrust
Ball 12 being capable of life-time service.
The sealing ring A coordinates installation, the spring assembly to install the groove 7 in outer snail body wall 1 and interior snail with spring assembly
The rear portion of the groove 6 of body wall 2, the elastic reaction of the spring assembly is in close contact sealing ring A and sealing ring B, it is ensured that good
Sealing property.
The spring assembly is little from coefficient of friction, the composite high-molecular material of corrosion resistance and good.
The sealing ring B is placed in impeller collar extension groove 4 and impeller internal orifice groove 5, in sealing ring B friction pair outer circumferential end faces
13 are uniformly provided with multiple valley gutters 11, and the grooved of the valley gutter 11 is triangle, and the grooved process is simple is easily realized.
0~90 ° of 11 included angle scope of the valley gutter, fluting direction is consistent with the direction blade of impeller 3, when impeller 3
When rotating with pump shaft, sealing ring B also rotates with impeller 3, obtains because valley gutter 11 rotates from the liquid of the outlet return of impeller 3
Centrifugal force, and be thrown out of along valley gutter 11, " internal leakage " of magnetic drive pump is effectively prevented, while when sealing ring A, B friction
Secondary outer circumferential end face is produced after temperature because of sliding friction, and heat can in time be distributed by valley gutter, reduces the abrasion of sealing ring
Degree, so as to increased the sealing effectiveness of sealing ring, increases the service life.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and be carried out, can not be limited the scope of the invention with this, all according to the present invention
Equivalence changes or modification that spirit is made, all should cover within the scope of the present invention.
Claims (5)
1. a kind of improved sealing ring of structure, including sealing ring A, sealing ring B, valley gutter (11), thrust ball (12), the sealing
Ring A is placed in outer snail body wall chase (7) and interior snail body wall chase (6), and the sealing ring A is in sealing ring A friction pair inner periphery end faces
(8) multiple blind holes are uniformly provided with, thrust ball (12) is placed in the blind hole, thrust ball (12) diameter is consistent with blind hole depth.
2. sealing ring according to claim 1, it is characterised in that：The thrust ball (12) is gas Pressure Sintered Silicon Nitride thrust
Ball.
3. sealing ring according to claim 1, it is characterised in that：The sealing ring A coordinates installation with spring assembly, described
Spring assembly installs the rear portion in outer snail body wall chase (7) and interior snail body wall chase (6), and the elastic reaction of the spring assembly makes sealing
Ring A and sealing ring B is in close contact.
4. sealing ring according to claim 1, it is characterised in that：The sealing ring B is placed on impeller collar extension groove (4) and leaf
In wheel internal orifice groove (5), in sealing ring B friction pair outer circumferential end faces (9) multiple valley gutters (11), the valley gutter are uniformly provided with
(11) it is triangle.
5. sealing ring according to claim 1, it is characterised in that：0~90 ° of valley gutter (11) the included angle scope,
Fluting direction is consistent with impeller blade direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310196058.3A CN104179718B (en) | 2013-05-24 | 2013-05-24 | Sealing ring with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310196058.3A CN104179718B (en) | 2013-05-24 | 2013-05-24 | Sealing ring with improved structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104179718A CN104179718A (en) | 2014-12-03 |
| CN104179718B true CN104179718B (en) | 2017-05-17 |
Family
ID=51960998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310196058.3A Active CN104179718B (en) | 2013-05-24 | 2013-05-24 | Sealing ring with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104179718B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6890611B2 (en) * | 2016-11-18 | 2021-06-18 | イーグル工業株式会社 | Sliding member |
| CN109372795B (en) * | 2018-12-28 | 2020-06-30 | 辽宁工程技术大学 | Fluid machinery rotating impeller |
| CN113028060B (en) * | 2021-04-22 | 2022-07-26 | 吕远 | Cylindrical pipe rolling contact sealing device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB158773A (en) * | 1919-12-12 | 1921-02-17 | Green Harold | Improvements in or relating to centrifugal pumps |
| CN85203985U (en) * | 1985-09-22 | 1986-12-10 | 蒋培升 | Rolling-type liquid film sealing device |
| CN86200858U (en) * | 1986-02-20 | 1987-01-21 | 蒋培升 | Rolling type mechanical sealings |
| CN2150371Y (en) * | 1992-08-11 | 1993-12-22 | 中国石油天然气总公司江汉机械研究所 | Sealing device for suction ring of pump |
| CN2443239Y (en) * | 2000-09-09 | 2001-08-15 | 李仲鸾 | Device with two friction rotating simultaneously between water-gas producer ring and supporting ring |
| CN100513835C (en) * | 2006-12-12 | 2009-07-15 | 郑州华能电力设备有限公司 | Mechanical sealing device capable of changing specific pressure |
| CN202431592U (en) * | 2012-01-04 | 2012-09-12 | 广州市昕恒泵业制造有限公司 | Impeller wear ring sealing structure |
| CN203476784U (en) * | 2013-05-24 | 2014-03-12 | 高涵文 | Sealing ring with improved structure |
-
2013
- 2013-05-24 CN CN201310196058.3A patent/CN104179718B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104179718A (en) | 2014-12-03 |
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