CN2415214Y - Sealing end cap of external bush type split mechanical sealing device for large rotating machine - Google Patents
Sealing end cap of external bush type split mechanical sealing device for large rotating machine Download PDFInfo
- Publication number
- CN2415214Y CN2415214Y CN 00203730 CN00203730U CN2415214Y CN 2415214 Y CN2415214 Y CN 2415214Y CN 00203730 CN00203730 CN 00203730 CN 00203730 U CN00203730 U CN 00203730U CN 2415214 Y CN2415214 Y CN 2415214Y
- Authority
- CN
- China
- Prior art keywords
- ring
- semi
- end cover
- bearing shell
- lower half
- 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 discloses a sealing end cap of external bush type split mechanical sealing devices for large rotating machines, which is composed of an upper and a lower half rings which are central dimidiate. The utility model is characterized in that the upper and the lower half rings are respectively provided with fixing lug plates which are provided with fixing holes, and the inner walls of the upper and the lower half rings are provided with concave notches. The upper ring is provided with an axial positioning key and a radical positioning slot, and the lower half ring is provided with a matching axial positioning slot and a radical positioning key on the horizontal connection surface of the upper and the lower half rings. The utility model has the advantages of simple structure, reasonable design, good sealing effect, convenient and rapid installation and maintenance.
Description
The utility model relates to a kind of rotation shaft seal, the end cover of the outer formula bisecting type mechanical seal device of particularly a kind of large-scale favourable turn bearing shell.
At present, the sealing means that big-and-middle-sized favourable turn bearing shell mechanical seal device both domestic and external normally adopts dynamic and static flinger ring and end cover to combine, but since moving flinger ring cooperates with notch on the end cover leave certain axially and radial clearance, do not have enough time to flow back into lubricant oil in the bearing shell case from the junction point generation leakage of oil or the oil impregnate of end cover and shaft circumference with regard to the feasible end cover that is splashed to along the shaft circumference junction point like this.
The purpose of this utility model just is to provide a kind of end cover of the outer formula bisecting type mechanical seal device of end cover-large-scale favourable turn bearing shell of good sealing effect.
Technical solution of the present utility model is: semi-ring and following semi-ring are formed on two hemizonids that described end cover is split by middle branch, on last semi-ring and following semi-ring, be respectively arranged with the fixedly otic placode of the tool fixed hole of fixation, about offer concave notches on the inwall of semi-ring; At the horizontal integration face place of upper and lower semi-ring, last semi-ring is provided with axially locating key and radial detents, and following semi-ring is provided with axially locating groove and the radial location key that matches with it.
On last semi-ring and following semi-ring, offer the flange plate fixed hole respectively; On last semi-ring, offer inlet hole, offering spill port on the semi-ring down; On the inwall of following semi-ring, be provided with oil-return groove near the spill port place.
The utility model is reasonable in design, simple in structure, with low cost, it is convenient to install, can with the use that forms a complete set of of static oil retainer ring and end cover, the bearing shell of can guaranteeing to make a connection is oil-proof, oil-tight, good sealing effect, thereby the generation of having avoided making a connection bearing shell case internal cause oil starvation and having caused the serious accident of bearing wear quickening or burn bearing, and can alleviate maintainer's working strength greatly, save a large amount of lubricant oil.
Below in conjunction with accompanying drawing and most preferred embodiment content of the present utility model is further elaborated.
Fig. 1 is a main TV structure schematic representation of the present utility model;
Fig. 2 is a side-looking structure partial cross-sectional schematic of the present utility model;
Fig. 3 is that A-A of the present utility model is to the sectional structure schematic representation;
Fig. 4 is that B-B of the present utility model is to the sectional structure schematic representation.
With reference to accompanying drawing, last semi-ring 1 and following semi-ring 2 that the utility model is split by middle branch are formed, on last semi-ring 1 and following semi-ring 2, be respectively arranged with the fixedly otic placode 3 of tool fixed hole 13, its effect is that upper and lower two semicircle end covers are snapped together, make it to be fixed into one with bolt, on the inwall of upper and lower semi-ring, offer concave notches 4, be used for and the fixing static oil retainer ring of the convex key mating reaction of static oil retainer ring; Horizontal integration face place at upper and lower semi-ring, last semi-ring 1 is provided with axially locating chain 5 and radial detents 6, following semi-ring 2 is provided with axially locating groove 7 and the radial location key 8 that matches with above-mentioned positioning spline, the effect of axially locating key and axially locating groove is upper and lower two semicircle end covers not to be gone here and there when guarantee installing at axial direction, and the effect of radial location key and radial detents is upper and lower two semicircle end covers not to be gone here and there when guaranteeing to install in the radial direction of axle.On last semi-ring 1 and following semi-ring 2, offer flange plate fixed hole 9 respectively, be used for end cover is fixed on the bearing shell end cap.Offer inlet hole 10 on last semi-ring 1, its effect is when guaranteeing the favourable turn operation, can produce certain pressure in the end cover, so that accelerate oil return speed.Offering spill port 11 on the semi-ring 2 down, its effect is interior lubricated can the flowing back in the bearing shell case grease chamber of end cover of bleeding when guaranteeing the favourable turn operation; On the inwall of following semi-ring 2, be provided with oil-return groove 12 near spill port 11 places, effect is that the lubricant oil that spills when making the favourable turn operation stockpiles in oil-return groove 12, so that flow back in the bearing shell case grease chamber by spill port.
When favourable turn rotates, taking up the lubricant oil that splashes by bearing is thrown on the moving flinger ring, by moving flinger ring oil is thrown to again on the inwall of end cover, from inwall, flow back in the bearing shell case grease chamber again by spill port, thereby reach the mechanical seal purpose of bearing shell, avoided the generation of bearing shell place oil leakage phenomenon.
Claims (4)
1, the end cover of the outer formula bisecting type mechanical seal device of a kind of large-scale favourable turn bearing shell, semi-ring (1) and following semi-ring (2) are formed on two semiround body that it is split by middle branch, it is characterized in that on last semi-ring (1) and following semi-ring (2), being respectively arranged with the fixedly otic placode (3) of the tool fixed hole (13) of fixation, on the inwall of semi-ring up and down, offer concave notches (4) respectively; At the horizontal integration face place of semi-ring up and down, last semi-ring (1) is provided with axially locating key (5) and radial detents (6), and following semi-ring (2) is provided with axially locating groove (7) and the radial location key (6) that matches with above-mentioned keyway.
2, the end cover of the outer formula bisecting type mechanical seal device of large-scale favourable turn bearing shell as claimed in claim 1 is characterized in that offering flange plate fixed hole (9) respectively on last semi-ring (1) and following semi-ring (2).
3, the end cover of the outer formula bisecting type mechanical seal device of large-scale favourable turn bearing shell as claimed in claim 1 is characterized in that offering inlet hole (10) on last semi-ring (1), is offering spill port (11) on the semi-ring (2) down.
4, the end cover of the outer formula bisecting type mechanical seal device of large-scale favourable turn bearing shell as claimed in claim 1 is characterized in that on the inwall of following semi-ring (2), locates to be provided with oil-return groove (12) near spill port (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203730 CN2415214Y (en) | 2000-02-23 | 2000-02-23 | Sealing end cap of external bush type split mechanical sealing device for large rotating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203730 CN2415214Y (en) | 2000-02-23 | 2000-02-23 | Sealing end cap of external bush type split mechanical sealing device for large rotating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2415214Y true CN2415214Y (en) | 2001-01-17 |
Family
ID=33572331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00203730 Expired - Fee Related CN2415214Y (en) | 2000-02-23 | 2000-02-23 | Sealing end cap of external bush type split mechanical sealing device for large rotating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2415214Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348289A (en) * | 2014-05-26 | 2015-02-11 | 山西太钢不锈钢股份有限公司 | Shaft seal method of end cover of generator and device thereof |
| CN107352394A (en) * | 2016-05-10 | 2017-11-17 | 深圳市能源环保有限公司 | A kind of rubbish hangs the opposite opened shaft connector for grabbing valve |
-
2000
- 2000-02-23 CN CN 00203730 patent/CN2415214Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348289A (en) * | 2014-05-26 | 2015-02-11 | 山西太钢不锈钢股份有限公司 | Shaft seal method of end cover of generator and device thereof |
| CN107352394A (en) * | 2016-05-10 | 2017-11-17 | 深圳市能源环保有限公司 | A kind of rubbish hangs the opposite opened shaft connector for grabbing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |