CN103291930A - Labyrinth type waterproof sealing device - Google Patents
Labyrinth type waterproof sealing device Download PDFInfo
- Publication number
- CN103291930A CN103291930A CN 201310265335 CN201310265335A CN103291930A CN 103291930 A CN103291930 A CN 103291930A CN 201310265335 CN201310265335 CN 201310265335 CN 201310265335 A CN201310265335 A CN 201310265335A CN 103291930 A CN103291930 A CN 103291930A
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- base
- rotating ring
- cabin
- sealing device
- wall
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Abstract
The invention relates to a labyrinth type waterproof sealing device installed on a hovercraft power propulsion system and used for preventing water from entering an inner cabin during power shaft back-up. A base is fixed on the right wall surface of the cabin wall, a plurality of annular base convex edges arranged at intervals are arranged on the right wall surface of the base, a moving ring is fixed on a ship shaft, a plurality of annular moving ring convex edges arranged at intervals are arranged on the left side wall of the moving ring, and the moving ring convex edges and the base convex edges are mutually inserted in a staggered mode. Water inlet positions are arranged among the excircle of the ship shaft, the cabin wall and the base, and water outlets are arranged on the cabin wall and the base. The labyrinth type waterproof sealing device is free of abrasion during operation, small in power loss and volume, light in weight, resistant to high and low temperature, resistant to corrosion and long in service life, and solves problems of the traditional shafting sealing device of being large in volume and weight and likely to abrade during high speed operation.
Description
Technical field
The present invention relates to a kind of seal arrangement that install at the Hovercraft power propulsion system, cabin in water enters when being used for preventing the line shaft reversing, especially a kind of mazy type water proof seal arrangement.
Background technique
At present, the marine shafting seal arrangement adopts the contact-type end surface mechanical sealing friction pair of being made up of dynamic and static ring mostly both at home and abroad, this class formation seal arrangement is when the axle rotating speed is above up to 1000r/min, and the surface of contact of friction pair will accelerated wear test, even overheated and cause burning out.Hovercraft power propulsion system spindle speed is 1200 ~ 1600r/min, is not suitable for to adopt traditional dynamic and static ring contact-type sealing structure device to carry out water-stop.Because Hovercraft power propulsion system main shaft directly is not immersed in the water, by propeller cavitation a certain amount of current being prolonged main shaft when just moveing backward is splashed into, in order to prevent that sealing enters interior cabin along the gap of main shaft and cabin, needs a kind of dynamic and static ring non-contact type mazy type water sealing device.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of high-low temperature resistant, corrosion-resistant, do not have that wearing and tearing, power consumption are little, long service life, dynamic and static ring non-contact type mazy type water proof seal arrangement.
According to technological scheme provided by the invention, described mazy type water proof seal arrangement, right wall at cabin wall fixedly has base, right wall at base is provided with base fin some rings and that be set in distance, at the ship axle rotating ring is arranged fixedly, left side wall at rotating ring is provided with rotating ring fin some rings and that be set in distance, and rotating ring fin and base fin are dislocation and put plugging; Between the cylindrical of ship axle and cabin wall and base, be provided with into Shui Chu, offer drain opening at cabin wall and base, at the right wall of base the protective housing that rotating ring can be covered in it is arranged fixedly.
Between protective housing and base, be provided with gasket seal.
Described base is the two halves split type structure.
Described rotating ring is the two halves split type structure.
Do not have wearing and tearing when the present invention moves, power loss is little, volume is little, in light weight, high-low temperature resistant, corrosion-resistant, the life-span is long, the system sealing device volume is big, weight is big to have solved traditional, problem easy to wear runs up.
The present invention is simple, compact and reasonable for structure; The water-stop demand of Hovercraft power propulsion system axle system is satisfied in the place that can be widely used in all kinds of Hovercrafts or similar operating mode.
Description of drawings
Fig. 1 is plan view of the present invention.
Fig. 2 is left view of the present invention.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
This mazy type water proof seal arrangement, right wall at cabin wall 8 fixedly has base 1, right wall at base 1 is provided with base fin 1.1 some rings and that be set in distance, at ship axle 9 rotating ring 2 is arranged fixedly, left side wall at rotating ring 2 is provided with rotating ring fin 2.1 some rings and that be set in distance, and rotating ring fin 2.1 is dislocation with base fin 1.1 and puts plugging; Between the cylindrical of ship axle 9 and cabin wall 8 and base 1, be provided with into water place 10, offer drain opening 11 at cabin wall 8 and base 1, at the right wall of base 1 protective housing 3 that rotating ring 2 can be covered in it is arranged fixedly.
Between protective housing 3 and base 1, be provided with gasket seal 4.
Described base 1 is the two halves split type structure, links to each other by second attachment bolt 6 between its two-part.
Described rotating ring 2 is the two halves split type structure, links to each other by the 3rd attachment bolt 7 between its two-part.
All hardwares among the present invention adopt stainless steel or aluminum alloy material to make, and compact structure is in light weight, can adapt to various environmental conditions.
Adopt welding or bolt to be connected between base 1 and the cabin wall 8; Tighten up by the 3rd attachment bolt 7 between rotating ring 2 and the ship axle 9, protective housing 3 is connected on the base 1 with gasket seal 4 by first attachment bolt 5.
Working principle of the present invention is as follows:
Annular rotating ring fin 2.1 on the rotating ring 2 cooperates the formation labyrinth seal structure with the annular base fin 1.1 on the base 1, when rotating ring 2 rotates at a high speed with ship axle 9, current enter rotating ring 2 and the base 1 common labyrinth structure that constitutes from the slit water inlet out of my cabin 10 between ship axle 9 and bulkhead, most of current are blocked in out of my cabin, all the other small amount of water are attached to base 1 and protective housing 3 internal surfaces by rotating ring 2 high speed centrifugation power after by labyrinth structure, discharged out of my cabin by drain opening 11, stop current to enter interior cabin, reach the effect of water-stop.
The present invention has following characteristics:
1, non-contact labyrinth seal technology, nothing is worn and torn, power loss is little;
2, compact structure, volume are little, in light weight;
3, high-low temperature resistant, need not keep in repair or change between long, the normal spreadable life in corrosion-resistant, life-span;
4, be suitable for the ship axle be high rotating speed (＞1000r/min);
5, operating temperature range :-75 ℃ ~+175 ℃;
6, the loopful border adapts to, the corrosion of humidity, grease, sunshine, dust and various organic solvents.
Claims (4)
1. mazy type water proof seal arrangement, it is characterized in that: the right wall at cabin wall (8) fixedly has base (1), right wall at base (1) is provided with base fin some rings and that be set in distance (1.1), at ship axle (9) rotating ring (2) is arranged fixedly, left side wall at rotating ring (2) is provided with rotating ring fin some rings and that be set in distance (2.1), and rotating ring fin (2.1) is dislocation with base fin (1.1) and puts plugging; Between the cylindrical of ship axle (9) and cabin wall (8) and base (1), be provided with into Shui Chu (10), offer drain opening (11) at cabin wall (8) and base (1), at the right wall of base (1) protective housing (3) that rotating ring (2) can be covered in it is arranged fixedly.
2. mazy type water proof seal arrangement as claimed in claim 1 is characterized in that: be provided with gasket seal (4) between protective housing (3) and base (1).
3. mazy type water proof seal arrangement as claimed in claim 1, it is characterized in that: described base (1) is the two halves split type structure.
4. mazy type water proof seal arrangement as claimed in claim 1, it is characterized in that: described rotating ring (2) is the two halves split type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310265335 CN103291930A (en) | 2013-06-27 | 2013-06-27 | Labyrinth type waterproof sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310265335 CN103291930A (en) | 2013-06-27 | 2013-06-27 | Labyrinth type waterproof sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103291930A true CN103291930A (en) | 2013-09-11 |
Family
ID=49093277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310265335 Pending CN103291930A (en) | 2013-06-27 | 2013-06-27 | Labyrinth type waterproof sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103291930A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506214A (en) * | 2018-06-04 | 2018-09-07 | 西安交通大学 | A kind of shaft seal structure of helical-lobe compressor |
| CN109202194A (en) * | 2017-09-15 | 2019-01-15 | 中国航空制造技术研究院 | A kind of protective device and means of defence of electrolytic machine tool rotary shaft |
| CN111868423A (en) * | 2018-04-03 | 2020-10-30 | 伊格尔工业股份有限公司 | Mechanical seal |
-
2013
- 2013-06-27 CN CN 201310265335 patent/CN103291930A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202194A (en) * | 2017-09-15 | 2019-01-15 | 中国航空制造技术研究院 | A kind of protective device and means of defence of electrolytic machine tool rotary shaft |
| CN109202194B (en) * | 2017-09-15 | 2020-12-11 | 中国航空制造技术研究院 | Method for protecting rotating shaft of electrolytic machining tool |
| CN111868423A (en) * | 2018-04-03 | 2020-10-30 | 伊格尔工业股份有限公司 | Mechanical seal |
| US11802623B2 (en) | 2018-04-03 | 2023-10-31 | Eagle Industry Co., Ltd. | Mechanical seal |
| US11815183B2 (en) | 2018-04-03 | 2023-11-14 | Eagle Industry Co., Ltd. | Mechanical seal |
| CN108506214A (en) * | 2018-06-04 | 2018-09-07 | 西安交通大学 | A kind of shaft seal structure of helical-lobe compressor |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |