CN202371176U - Marine bay seal transmission shaft device - Google Patents
Marine bay seal transmission shaft device Download PDFInfo
- Publication number
- CN202371176U CN202371176U CN2011204430034U CN201120443003U CN202371176U CN 202371176 U CN202371176 U CN 202371176U CN 2011204430034 U CN2011204430034 U CN 2011204430034U CN 201120443003 U CN201120443003 U CN 201120443003U CN 202371176 U CN202371176 U CN 202371176U
- Authority
- CN
- China
- Prior art keywords
- labyrinth
- rotating shaft
- cabin
- disc
- moving
- 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 marine bay seal transmission shaft device, wherein three tooth grooves are processed on the end surface where a movable labyrinth disc (2) and a fixed labyrinth disc (3) are mutually contacted; the fixed labyrinth disc (3) is installed on a coupling disc (4); the coupling disc (4) is welded on the inner side of a cabin partition board (10); the movable labyrinth disc (2) is embedded in the fixed labyrinth disc (3), so as to form a tiny labyrinth zigzag clearance with the fixed labyrinth disc (3); a rotating shaft is installed at the center of the movable labyrinth disc (2) and the fixed labyrinth disc (3); and one end of the rotating shaft (1) is arranged on a cabin (11) side, while the other end of the rotating shaft (1) is arranged on a pump cabin (12) side. The marine bay seal transmission shaft device has the advantages of simple structure, light weight, small size and reliable seal, is suitable for bay coupling and transmission among primary machines of marine transportation tankers and chemical ships and liquid pumps, and can effectively prevent high-temperature inflammable gas, electric sparks or metal friction sparks in the cabin from entering the pump cabin.
Description
Technical field
The utility model relates to driveline, is specifically related to a kind of separation sealing driveline peculiar to vessel.
Background technique
Because what adorn on oil carrier or the chemical tanker all is inflammable liquid, so liquid pump at work, can not get into high-temperature combustible gas body, electrical spark or metal friction spark in the pump room, so prime mover and pump are installed in respectively in two cabins.This transmission shaft that just requires to connect between prime mover and the liquid pump has seal action when passing shifting board.At present; Existing separation transmission device peculiar to vessel all is to be sealed into the master with the contact-type rubber oil sea, and the shortcoming of this pattern sealing is: because transmission shaft and other parts clearance are less, cause a frictional heating easily; Rubber oil sea easy ageing, distortion influence sealing effect.
Summary of the invention
The purpose of the utility model is to be: a kind of separation sealing driveline peculiar to vessel is provided; Be applicable to that separation between prime mover and the liquid pump of marine transportation oil carrier, chemical tanker connects the usefulness of transmission, can stop in the high-temperature combustible gas body cabin in, electrical spark or the metal friction spark entering pump room effectively.
The technological scheme that technical problem adopted that the utility model will solve is achieved in that the sealing driveline comprises rotating shaft, moving labyrinth, decides labyrinth and joining plate; Moving labyrinth has been processed three road teeth groove with decide on the end face that labyrinth is in contact with one another, decides labyrinth and is installed on the tie-plate through spring washer and hex screw, and tie-plate is welded on dividing plate inboard, cabin; Moving labyrinth embeds decides to form in the labyrinth very little mazy type labyrinth gap; Be full of lubricating grease in the clearance space, axial clearance is 1-2mm, equates around the radial clearance; Rotating shaft is installed in moving labyrinth and the center of deciding labyrinth through key and shaft block ring; One end of rotating shaft is in cabin side, and the other end of rotating shaft is installed two priming cups so that regularly in teeth groove, inject lubricating grease in the pump room side at the back side of moving labyrinth.
During installation, an end of rotating shaft connects prime mover through elastic coupling flexible coupling, and the other end of rotating shaft connects pump through rigid coupling; During work, prime mover drives liquid pump work through rotating shaft, and moving labyrinth is along with rotating shaft runs up;, the lubricating grease between labyrinth produces to splash under action of centrifugal force and expands and the formation oil film, has blocked the intrusion of gas; Gas was invaded between labyrinth, when the passage through many throttle clearance and expansion space composition, produced very big ability loss through throttling repeatedly; Gas head greatly descends, and until being zero, gas then is difficult to leak out outside the labyrinth.
The utlity model has following advantage: 1, the material of moving labyrinth is selected zinc-base wear-resisting alloy, decide the material selection cast steel of labyrinth, if because of alignment error, two parts take place bump friction and also can not produce spark; 2, the utility model is simple in structure, and is in light weight, and volume is little, and sealing is reliable.
Description of drawings
Fig. 1 is the mounting structure schematic representation of the utility model.
Among the figure: 1 rotating shaft, 2 moving labyrinths, 3 decide labyrinth, 4 tie-plates, 5 spring washers, 6 hex screws, 7 lubricating cups, 8 shaft block rings, 9 keys, 10 cabin dividing plates, 11 cabins, 12 pump rooms.
Embodiment
As shown in Figure 1, the sealing driveline comprises rotating shaft 1, moving labyrinth 2, decide labyrinth 3 and joining plate 4, moving labyrinth 2 and decide to have processed three road teeth groove on the end face that labyrinth 3 is in contact with one another; Deciding labyrinth 3 is installed on the tie-plate 4 through spring washer 5 and hex screw 6; Tie-plate 4 is welded on cabin dividing plate 10 inboards, and moving labyrinth 2 embeds to be decided to form very little mazy type labyrinth gap in the labyrinth 3, is full of lubricating grease in the clearance space; Axial clearance is 1-2mm; Equate around the radial clearance that rotating shaft 1 is installed in moving labyrinth 2 and the center of deciding labyrinth 4 through key 9 and shaft block ring 8, an end of rotating shaft 1 is 11 sides in the cabin; The other end of rotating shaft 1 is installed two priming cups 7 so that regularly in teeth groove, inject lubricating grease in pump room 12 sides at the back side of moving labyrinth 2.
During installation, an end of rotating shaft 1 connects prime mover through elastic coupling flexible coupling, and the other end of rotating shaft 1 connects pump through rigid coupling; During work, prime mover drives liquid pump work through rotating shaft 1, and moving labyrinth 2 is along with rotating shaft 1 runs up;, the lubricating grease between labyrinth produces to splash under action of centrifugal force and expands and the formation oil film, has blocked the intrusion of gas; Gas was invaded between labyrinth, when the passage through many throttle clearance and expansion space composition, produced very big ability loss through throttling repeatedly; Gas head greatly descends, and until being zero, gas then is difficult to leak out outside the labyrinth.
Claims (1)
1. separation sealing driveline peculiar to vessel; It is characterized in that: the sealing driveline comprises rotating shaft (1), moving labyrinth (2), decides labyrinth (3) and joining plate (4); Moving labyrinth (2) and decide to have processed three road teeth groove on the end face that labyrinth (3) is in contact with one another is decided labyrinth (3) and is installed on the tie-plate (4) through spring washer (5) and hex screw (6), and tie-plate (4) is welded on cabin dividing plate (10) inboard; Moving labyrinth (2) embeds decides to form in the labyrinth (3) the mazy type labyrinth gap; Be full of lubricating grease in the clearance space, axial clearance is 1-2mm, equates around the radial clearance; Rotating shaft (1) is installed in moving labyrinth (2) and decides the center of labyrinth (4) through key (9) and shaft block ring (8); One end of rotating shaft (1) is (11) side in the cabin, and the other end of rotating shaft (1) is installed two priming cups (7) so that regularly in teeth groove, inject lubricating grease in pump room (12) side at the back side of moving labyrinth (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204430034U CN202371176U (en) | 2011-11-10 | 2011-11-10 | Marine bay seal transmission shaft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204430034U CN202371176U (en) | 2011-11-10 | 2011-11-10 | Marine bay seal transmission shaft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371176U true CN202371176U (en) | 2012-08-08 |
Family
ID=46594880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204430034U Expired - Fee Related CN202371176U (en) | 2011-11-10 | 2011-11-10 | Marine bay seal transmission shaft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371176U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267188A (en) * | 2013-05-07 | 2013-08-28 | 许建中 | Butt seal structure for spray water supply pipe in coal mining machine |
| CN105041384A (en) * | 2014-07-21 | 2015-11-11 | 摩尔动力(北京)技术股份有限公司 | End face sealing system |
| CN107366745A (en) * | 2016-05-12 | 2017-11-21 | 南京凯盛国际工程有限公司 | Novel vertical mill grinding-roll sealing device |
| CN107575579A (en) * | 2017-04-24 | 2018-01-12 | 西安应用光学研究所 | A kind of panorama photoelectric observing takes aim at the combined type rotary dynamic sealing structure of equipment |
| CN109372991A (en) * | 2018-11-28 | 2019-02-22 | 东台市海鹏船舶配件有限公司 | A kind of radial extrusion type marine screw shaft sealing device |
-
2011
- 2011-11-10 CN CN2011204430034U patent/CN202371176U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267188A (en) * | 2013-05-07 | 2013-08-28 | 许建中 | Butt seal structure for spray water supply pipe in coal mining machine |
| CN103267188B (en) * | 2013-05-07 | 2016-01-13 | 许建中 | Coal winning machine internal spraying flow pipe Butt sealing |
| CN105041384A (en) * | 2014-07-21 | 2015-11-11 | 摩尔动力(北京)技术股份有限公司 | End face sealing system |
| CN107366745A (en) * | 2016-05-12 | 2017-11-21 | 南京凯盛国际工程有限公司 | Novel vertical mill grinding-roll sealing device |
| CN107575579A (en) * | 2017-04-24 | 2018-01-12 | 西安应用光学研究所 | A kind of panorama photoelectric observing takes aim at the combined type rotary dynamic sealing structure of equipment |
| CN107575579B (en) * | 2017-04-24 | 2019-05-31 | 西安应用光学研究所 | A kind of panorama photoelectric observing takes aim at the combined type rotary dynamic sealing structure of equipment |
| CN109372991A (en) * | 2018-11-28 | 2019-02-22 | 东台市海鹏船舶配件有限公司 | A kind of radial extrusion type marine screw shaft sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20121110 |