CN111396561A - Mechanical sealing device for powder - Google Patents
Mechanical sealing device for powder Download PDFInfo
- Publication number
- CN111396561A CN111396561A CN202010250721.3A CN202010250721A CN111396561A CN 111396561 A CN111396561 A CN 111396561A CN 202010250721 A CN202010250721 A CN 202010250721A CN 111396561 A CN111396561 A CN 111396561A
- Authority
- CN
- China
- Prior art keywords
- ring
- spring
- scraper
- shaft sleeve
- static
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 50
- 239000000843 powder Substances 0.000 title claims abstract description 36
- 230000003068 static effect Effects 0.000 claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007667 floating Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3464—Mounting of the seal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/344—Pressing means the pressing force being applied by means of an elastic ring supporting the slip-ring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
The invention discloses a mechanical sealing device for powder, wherein a first sealing ring is arranged on the inner wall of a shaft sleeve, a movable ring is arranged outside the shaft sleeve, the movable ring is fixedly connected with the shaft sleeve, a second sealing ring in sealing fit is arranged between the movable ring and the shaft sleeve, a static ring is sleeved outside the shaft sleeve, one end of the static ring abuts against the movable ring, a flange assembly is positioned on one side of the static ring, which is far away from the movable ring, one end of the static ring, which is far away from the movable ring, is connected with the flange assembly through a first spring, a scraper device is arranged on the flange assembly, and the cutting edge of. According to the optimally designed mechanical sealing device for the powder, on one hand, the static ring is arranged on the flange assembly through the first spring, and the static ring can axially float under the action of elasticity, so that the sealing surface of the static ring and the sealing surface of the dynamic ring are tightly attached to prevent leakage; on the other hand, in the floating process of the static ring, the scraper effectively scrapes off materials attached to the surface of the static ring, and prevents powder from entering to influence the sealing of the static ring.
Description
Technical Field
The invention relates to the technical field of mechanical sealing, in particular to a mechanical sealing device for powder.
Background
When carrying out mechanical seal to the drive shaft that is used for the powder, the rotating ring takes place to rotate along with the pivot, and quiet ring is static relatively for the powder is attached to at quiet ring outer wall easily, and this part powder is attached to for a long time and can be led to the fact the influence to the main seal between rotating ring and the quiet ring, influences the two sealed effect, causes the leakage, thereby influences sealed reliable operation for a long time under the powder medium, and then influences sealed effect and life-span.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a mechanical sealing device for powder.
The invention provides a mechanical sealing device for powder, which comprises: the scraper comprises a shaft sleeve, a flange assembly, a static ring, a dynamic ring and a scraper;
the inner wall of the shaft sleeve is provided with a first sealing ring, the shaft sleeve of the movable ring is external, a second sealing ring in sealing fit is arranged between the movable ring and the shaft sleeve and fixedly connected with the shaft sleeve and between the movable ring and the shaft sleeve, the static ring is sleeved outside the shaft sleeve, one end of the static ring is abutted against the movable ring, the flange assembly is located on one side of the static ring away from the movable ring, one end of the static ring away from the movable ring is connected with the flange assembly through a first spring, the scraper device is installed on the flange assembly, and the cutting edge of the.
Preferably, the flange assembly comprises a flange body and a spring seat, the spring seat is installed on the shaft sleeve, a skeleton seal is arranged between the spring seat and the shaft sleeve, one end of a first spring is installed on the spring seat, the flange body is located on one side, away from the shaft sleeve, of the static ring and is installed on the spring seat, and the scraper device is located between the flange body and the static ring and is installed on the spring seat.
Preferably, the flange assembly further comprises a push ring, the push ring is located between the stationary ring and the spring seat, one end of the first spring is connected with the flange, and the other end of the first spring is connected with the push ring.
Preferably, the outer edge of the push ring is provided with a limiting bulge extending towards the direction of the stationary ring, and the inner wall of the limiting bulge abuts against the outer wall of the stationary ring.
Preferably, the spring seat is further provided with a second spring, and one end, far away from the spring seat, of the second spring is connected with the scraper.
Preferably, the outer wall of the shaft sleeve is provided with a retaining ring which is annularly arranged, the retaining ring is positioned on one side of the movable ring, which is far away from the stationary ring, and the movable ring is fixedly connected with the retaining ring.
Preferably, one side of the baffle ring, which is close to the static ring, is provided with an annular mounting groove for accommodating the dynamic ring, and the second sealing ring is positioned in the annular mounting groove.
Preferably, one side of the baffle ring, which is far away from the movable ring, is provided with an arc-shaped guide surface which extends annularly, and the outer diameter of the arc-shaped guide surface gradually increases in the direction of approaching the stationary ring.
Preferably, the shaft sleeve is provided with a holding transmission mechanism.
Preferably, the scraper is made using a sealing ring having an annular lip portion.
According to the mechanical sealing device for the powder, the inner wall of a shaft sleeve is provided with a first sealing ring, the outside of a rotating ring shaft sleeve is fixedly connected with the shaft sleeve, a second sealing ring in sealing fit is arranged between the rotating ring and the shaft sleeve, a static ring is sleeved on the outside of the shaft sleeve, one end of the static ring abuts against the rotating ring, a flange assembly is located on one side, away from the rotating ring, of the static ring, one end, away from the rotating ring, of the static ring is connected with the flange assembly through a first spring, a scraper device is installed on the flange assembly, and the cutting edge of the scraper device abuts against the outer. According to the optimally designed mechanical sealing device for the powder, on one hand, the static ring is arranged on the flange assembly through the first spring, and the static ring can axially float under the action of elasticity, so that the sealing surface of the static ring and the sealing surface of the dynamic ring are tightly attached to prevent leakage; on the other hand, in the floating process of the static ring, the scraper effectively scrapes off materials attached to the surface of the static ring, and prevents powder from entering to influence sealing.
Drawings
Fig. 1 is a schematic structural diagram of a mechanical sealing device for powder according to the present invention.
Detailed Description
As shown in fig. 1, fig. 1 is a schematic structural diagram of a mechanical sealing device for powder according to the present invention.
Referring to fig. 1, the mechanical sealing device for powder according to the present invention includes: the scraper comprises a shaft sleeve 1, a flange assembly, a static ring 5, a dynamic ring 4 and a scraper 6;
1 inner wall of axle sleeve is equipped with first sealing washer 2, 4 axle sleeves of rotating ring 1 are outside, be equipped with sealed complex second sealing washer 3 between rotating ring 4 and 1 fixed connection of axle sleeve and rotating ring 4 and the axle sleeve 1, quiet ring 5 cover is established and is leaned on rotating ring 4 in 1 outside and its one end of axle sleeve, the flange subassembly is located quiet ring 5 and keeps away from rotating ring 4 one side, 4 one end of rotating ring is kept away from to quiet ring 5 is connected with the flange subassembly through first spring 81, scraper ware 6 is installed on the flange subassembly, 6 cutting edges of scraper ware are supported and are leaned on quiet ring 5 and keep away from axle sleeve 1 one side outer wall.
In the mechanical seal device's that powder of this embodiment was used specific working process, the axle sleeve takes place rotatoryly along with the axle, and the rotating ring rotates along with the axle sleeve simultaneously, installs quiet ring circumference on the flange subassembly relative static, because quiet ring passes through first spring coupling with the flange subassembly, along with the rotation of pivot for quiet ring takes place the axial and floats, guarantees the reliability of sealing between quiet ring and the rotating ring, and scraper is gone on scraping repeatedly the material to quiet ring surface simultaneously, prevents that adnexed powder from influencing sealed effect.
In this embodiment, the mechanical seal device that the powder was used that provides, the axle sleeve inner wall is equipped with first sealing washer, the rotating ring axle sleeve is outside, be equipped with sealed complex second sealing washer between rotating ring and axle sleeve fixed connection and rotating ring and the axle sleeve, quiet ring cover is established at the axle sleeve outside and its one end supports and leans on the rotating ring, the flange subassembly is located quiet ring and keeps away from rotating ring one side, quiet ring is kept away from rotating ring one end and is passed through first spring and flange subassembly and be connected, the scraper ware is installed on the flange subassembly, the scraper ware cutting edge supports and leans on quiet ring and keeps away from axle sleeve one side outer wall. According to the optimally designed mechanical sealing device for the powder, on one hand, the static ring is arranged on the flange assembly through the first spring, and the static ring can axially float under the action of elasticity, so that the sealing surface of the static ring and the sealing surface of the dynamic ring are tightly attached to prevent leakage; on the other hand, in the floating process of the static ring, the scraper effectively scrapes off materials attached to the surface of the static ring, and prevents powder from entering to influence sealing.
In the specific implementation mode of the flange assembly, the flange assembly comprises a flange body 10 and a spring seat 9, the spring seat 9 is installed on a shaft sleeve 1, a skeleton seal 11 is arranged between the spring seat 9 and the shaft sleeve 1, one end of a first spring 81 is installed on the spring seat 9, the flange body 10 is located on one side, away from the shaft sleeve 1, of a stationary ring 5 and is installed on the spring seat 9, and a scraper 6 is located between the flange body 10 and the stationary ring 5 and is installed on the spring seat 9.
Further, the flange assembly further comprises a push ring 7, the push ring 7 is located between the static ring 5 and the spring seat 9, one end of the first spring 81 is connected with the flange, the other end of the first spring is connected with the push ring 7, and the first spring is matched with the static ring through the push ring, so that the reliability of matching the first spring with the static ring is improved.
In the concrete design mode of throw-out collar, 7 outer fringe of throw-out collar is equipped with the spacing arch of stretching out to quiet ring 5 direction, and spacing protruding inner wall supports and leans on quiet ring 5 outer wall, further improves throw-out collar and quiet ring complex reliability.
In other specific embodiments, the spring seat 9 is further provided with a second spring 82, and one end of the second spring 82, which is far away from the spring seat 9, is connected with the scraper 6, so that the scraper also has a certain floating allowance, and the scraping effect is improved.
In other specific embodiments, the outer wall of the shaft sleeve 1 is provided with a retaining ring 13 which is annularly arranged, the retaining ring 13 is positioned on one side of the movable ring 4, which is far away from the stationary ring 5, the movable ring 4 is fixedly connected with the retaining ring 13, and the retaining ring protects the movable ring and prevents powder from directly impacting the movable ring.
In the concrete design mode of keeping off the ring, keep off ring 13 and be equipped with the annular mounting groove that is used for holding rotating ring 4 near quiet ring 5 one side, second sealing washer 3 is located in the annular mounting groove, guarantee the sealed effect between rotating ring and the axle sleeve.
In a further specific embodiment of the baffle ring, one side of the baffle ring 13, which is far away from the movable ring 4, is provided with an arc-shaped guide surface which extends annularly, and the outer diameter of the arc-shaped guide surface is gradually increased in the direction of approaching the stationary ring 5, so that powder is not easy to adhere to the surface of the shaft sleeve and accumulate and block the shaft sleeve, the movable ring and the stationary ring, and the service life of the seal is prolonged. In actual use, the arc-shaped guide surface can be subjected to mirror polishing treatment, so that the friction force is further reduced.
When the shaft sleeve is arranged outside the rotating shaft, the shaft sleeve 1 is provided with a holding transmission mechanism 12, and the holding transmission mechanism can be fixedly connected with the rotating shaft.
In the concrete structural design of scraper, scraper 6 adopts the sealing washer that has annular blade portion to make, and its annular blade portion supports and leans on quiet ring outer wall, scrapes attached powder on quiet ring along with the two relative floating.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A mechanical sealing device for powder is characterized by comprising: the scraper comprises a shaft sleeve (1), a flange assembly, a static ring (5), a dynamic ring (4) and a scraper (6);
axle sleeve (1) inner wall is equipped with first sealing washer (2), rotating ring (4) axle sleeve (1) is outside, rotating ring (4) and axle sleeve (1) fixed connection and be equipped with sealed complex second sealing washer (3) between rotating ring (4) and axle sleeve (1), quiet ring (5) cover is established and is leaned on rotating ring (4) in axle sleeve (1) outside and its one end, the flange subassembly is located quiet ring (5) and keeps away from rotating ring (4) one side, quiet ring (5) are kept away from rotating ring (4) one end and are connected with the flange subassembly through first spring (81), install on the flange subassembly scraper ware (6), scraper ware (6) cutting edge is supported and is leaned on quiet ring (5) and is kept away from axle sleeve (1) one side outer wall.
2. The mechanical sealing device for the powder according to claim 1, wherein the flange assembly comprises a flange body (10) and a spring seat (9), the spring seat (9) is installed on the shaft sleeve (1), a skeleton seal (11) is arranged between the spring seat (9) and the shaft sleeve (1), one end of the first spring (81) is installed on the spring seat (9), the flange body (10) is located on one side, away from the shaft sleeve (1), of the static ring (5) and is installed on the spring seat (9), and the scraper (6) is located between the flange body (10) and the static ring (5) and is installed on the spring seat (9).
3. The mechanical sealing device for the powder body as claimed in claim 2, wherein the flange assembly further comprises a push ring (7), the push ring (7) is located between the stationary ring (5) and the spring seat (9), one end of the first spring (81) is connected with the flange, and the other end of the first spring is connected with the push ring (7).
4. A mechanical sealing device for powder according to claim 3, wherein the outer edge of the push ring (7) is provided with a limit protrusion extending towards the stationary ring (5), and the inner wall of the limit protrusion abuts against the outer wall of the stationary ring (5).
5. The mechanical sealing device for the powder body as claimed in claim 2, wherein the spring seat (9) is further provided with a second spring (82), and one end of the second spring (82) far away from the spring seat (9) is connected with the scraper (6).
6. The mechanical sealing device for the powder according to claim 1, wherein the outer wall of the shaft sleeve (1) is provided with a baffle ring (13) which is arranged in an annular manner, the baffle ring (13) is positioned on one side of the movable ring (4) far away from the static ring (5), and the movable ring (4) is fixedly connected with the baffle ring (13).
7. A mechanical seal for powder according to claim 6, wherein the baffle ring (13) is provided with an annular mounting groove for receiving the movable ring (4) on the side close to the stationary ring (5), and the second seal ring (3) is located in the annular mounting groove.
8. A mechanical seal for powder according to claim 1, wherein the side of the baffle ring (13) remote from the movable ring (4) is provided with an annularly extending arcuate guide surface, the outer diameter of which is gradually increased toward the stationary ring (5).
9. Mechanical seal for powder according to claim 1, characterized in that the housing (1) is provided with a hugging transmission (12).
10. Mechanical seal for powders according to claim 1, characterized in that the scraper (6) is made of a sealing ring with an annular lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250721.3A CN111396561A (en) | 2020-04-01 | 2020-04-01 | Mechanical sealing device for powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250721.3A CN111396561A (en) | 2020-04-01 | 2020-04-01 | Mechanical sealing device for powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111396561A true CN111396561A (en) | 2020-07-10 |
Family
ID=71432978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010250721.3A Pending CN111396561A (en) | 2020-04-01 | 2020-04-01 | Mechanical sealing device for powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111396561A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0709149D0 (en) * | 2006-05-12 | 2007-06-20 | Kobe Steel Ltd | Mechanical seal |
| CN102927286A (en) * | 2012-11-01 | 2013-02-13 | 安徽亚兰密封件有限公司 | Double-floating integrated mechanical seal with large shaft diameter |
| CN203394841U (en) * | 2013-06-13 | 2014-01-15 | 徐国防 | Centrifugal type integrating mechanical sealing device |
| CN203463274U (en) * | 2013-08-12 | 2014-03-05 | 四川丹罗斯机械制造有限公司 | Mechanical sealing device for desulfurization circulating pump |
| CN105114354A (en) * | 2015-08-25 | 2015-12-02 | 张家港市三利密封合金材料有限公司 | Mechanical seal for desulphurization pump |
| CN105443766A (en) * | 2016-01-12 | 2016-03-30 | 昆山密友机械密封有限公司 | Follow-up mechanical seal structure |
| CN208546524U (en) * | 2018-06-04 | 2019-02-26 | 四川重诚密封件有限公司 | A kind of spring protection formula mechanical seal |
| CN208703129U (en) * | 2018-05-11 | 2019-04-05 | 浙江兰天机械密封件有限公司 | A kind of mechanically-sealing apparatus of erosion resistant |
| CN209977255U (en) * | 2019-06-06 | 2020-01-21 | 温州重齐机械设备有限公司 | Mechanical seal for kettle |
| CN210050297U (en) * | 2019-04-25 | 2020-02-11 | 安徽亚兰密封件有限公司 | Sealing device with bearing in middle |
-
2020
- 2020-04-01 CN CN202010250721.3A patent/CN111396561A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0709149D0 (en) * | 2006-05-12 | 2007-06-20 | Kobe Steel Ltd | Mechanical seal |
| CN102927286A (en) * | 2012-11-01 | 2013-02-13 | 安徽亚兰密封件有限公司 | Double-floating integrated mechanical seal with large shaft diameter |
| CN203394841U (en) * | 2013-06-13 | 2014-01-15 | 徐国防 | Centrifugal type integrating mechanical sealing device |
| CN203463274U (en) * | 2013-08-12 | 2014-03-05 | 四川丹罗斯机械制造有限公司 | Mechanical sealing device for desulfurization circulating pump |
| CN105114354A (en) * | 2015-08-25 | 2015-12-02 | 张家港市三利密封合金材料有限公司 | Mechanical seal for desulphurization pump |
| CN105443766A (en) * | 2016-01-12 | 2016-03-30 | 昆山密友机械密封有限公司 | Follow-up mechanical seal structure |
| CN208703129U (en) * | 2018-05-11 | 2019-04-05 | 浙江兰天机械密封件有限公司 | A kind of mechanically-sealing apparatus of erosion resistant |
| CN208546524U (en) * | 2018-06-04 | 2019-02-26 | 四川重诚密封件有限公司 | A kind of spring protection formula mechanical seal |
| CN210050297U (en) * | 2019-04-25 | 2020-02-11 | 安徽亚兰密封件有限公司 | Sealing device with bearing in middle |
| CN209977255U (en) * | 2019-06-06 | 2020-01-21 | 温州重齐机械设备有限公司 | Mechanical seal for kettle |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200710 |
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| RJ01 | Rejection of invention patent application after publication |