CN103062374A - Plug for oil fillers of tail gearboxes in helicopters - Google Patents
Plug for oil fillers of tail gearboxes in helicopters Download PDFInfo
- Publication number
- CN103062374A CN103062374A CN2013100082651A CN201310008265A CN103062374A CN 103062374 A CN103062374 A CN 103062374A CN 2013100082651 A CN2013100082651 A CN 2013100082651A CN 201310008265 A CN201310008265 A CN 201310008265A CN 103062374 A CN103062374 A CN 103062374A
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- Prior art keywords
- plug
- cock body
- plug body
- oil filler
- tail
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Abstract
The invention relates to a plug for oil fillers of tail gearboxes in helicopters. The plug comprises a plug body, a filter and a blind plug. The blind plug is disposed on in the hollow of the top of the plug body. The plug body is provided with an air hole communicated with the outside. The plug body is provided with the filter corresponding to the air hole. The plug body is provided with an outer step. A waterproof cover covering the air hole is arranged outside the plug body and effectively prevents sea water from entering a tail gearbox from the air hole. The large-diameter portion of the plug body axially extends, so that the axial size of the inner hollow of the plug body is enlarged and the larger-thickness blind plug can be disposed. A permeation path is extended, so that the sea water is effectively prevented from permeating to the tail gearbox from an oil filler cap. A lock screw effectively prevents rotation and falling of the waterproof cover. Therefore, the plug well prevents the sea water from entering the tail gearbox and prevents lubricating oil from being polluted.
Description
Technical field
The present invention relates to a kind of retarder oil filler stopper, especially a kind of tail reducer of helicopter oil filler stopper.
Background technique
China's tail reducer of helicopter mostly is greatly Lu Yongxing at present, comprises that from the tail reducer of helicopter of external introduction also be Lu Yongxing.Its Central Plains is arranged on tail reducer oil filler stopper and is exposed to outward, in order to prevent the consistent of tail reducer inner and outer air pressure, is provided with vent at the oil filler stopper simultaneously.Along with the expansion of helicopter application, various Secretaries have been proposed each parts on the tail reducer of helicopter.When tail reducer is loaded on when using on the carrier-borne aircraft, under ocean environment, seawater can enter tail reducer by vent, causes slippery oil pollution.Seawater is accumulated at oil filler stopper top, and seawater infiltrates oil filler and enters tail reducer, also can cause slippery oil pollution.
Summary of the invention
The object of the present invention is to provide a kind of preferably tail reducer of helicopter oil filler stopper of seawater safeguard function that has, the problem of seawater pollution lubricating oil when this kind oil filler stopper is worked under ocean environment for tail reducer of helicopter, can prevent effectively that seawater from entering tail reducer, avoids lubricating oil contaminated.
Concrete technological scheme of the present invention is: tail reducer of helicopter tank filler sleeve stopper comprises cock body, filter, blind plug, and the inside of cock body is hollow structure, and the part that the top of cock body is positioned at hollow is equipped with blind plug; Be provided with vent with exterior at cock body, the position that is positioned at vent in cock body inside is provided with filter, the outer installment of described cock body has step, the position of the minor diameter of the step of cock body is provided with the screw thread that is installed on the oil filler base, the major diameter of the step of cock body is equipped with water proof cover greater than the external diameter of oil filler base and by screw thread, and described water proof cover covers the step part of vent place and cock body.The major diameter part of described cock body is extended vertically.Be provided with the locking silk that is connected with cock body on the described water proof cover.
The present invention adopts the water proof cover that covers the vent place in the cock body outer installment, can prevent effectively that seawater from entering tail reducer from vent; Stretch on the axial edge of the major diameter part of cock body, the axial dimension of cock body inner hollow part is strengthened, so that the blind plug of larger thickness is installed, prolonged permeation pathway, can prevent effectively that seawater from infiltrating tail reducer by filler cap, the locking silk can prevent effectively that the water proof cover rotation from coming off.By above structure, can prevent preferably that seawater from entering tail reducer, avoids lubricating oil contaminated.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in the figure, tail reducer of helicopter oil filler stopper comprises cock body 1, filter 2, blind plug 3, and the inside of cock body 1 is hollow structure, and the part that the top of cock body 1 is positioned at hollow is equipped with blind plug 3; Be provided with vent 5 with exterior at cock body, the position that is positioned at vent 5 in cock body inside is provided with filter 2, the outer installment of described cock body 1 has step, the position of the minor diameter of the step of cock body 1 is provided with the screw thread that is installed on the oil filler base 6, the major diameter of the step of cock body 1 is equipped with water proof cover 4 greater than the external diameter of oil filler base 6 and by screw thread, and described water proof cover 4 covers the step part of vent place and cock body.The major diameter part of described cock body 1 is extended vertically.Be provided with the locking silk 7 that is connected with cock body on the described water proof cover.
During use, first water proof cover 4 is installed in the major diameter part of the cock body 1 of tank filler sleeve stopper, utilizes locking silk 7 locking, then being threaded on the oil filler base 6 small diameter portion on the cock body 1 of oil filler stopper.
Claims (3)
1. a tail reducer of helicopter oil filler stopper comprises cock body [1], filter [2], blind plug [3], and the inside of cock body [1] is hollow structure, and the part that the top of cock body [1] is positioned at hollow is equipped with blind plug [3]; Be provided with vent [5] with exterior at cock body, it is characterized in that, the position that is positioned at vent [5] in cock body inside is provided with filter [2], the outer installment of described cock body [1] has step, the position of the minor diameter of the step of cock body [1] is provided with the screw thread that is installed on the oil filler base [6], the major diameter of the step of cock body [1] is equipped with water proof cover [4] greater than the external diameter of oil filler base [6] and by screw thread, and described water proof cover [4] covers the step part of vent place and cock body.
2. tail reducer of helicopter oil filler stopper as claimed in claim 1 is characterized in that, the major diameter part of described cock body [1] is extended vertically.
3. tail reducer of helicopter oil filler stopper as claimed in claim 1 is characterized in that, is provided with the locking silk [7] that is connected with cock body on the described water proof cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008265.1A CN103062374B (en) | 2013-01-10 | 2013-01-10 | Tail reducer of helicopter oil filler stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008265.1A CN103062374B (en) | 2013-01-10 | 2013-01-10 | Tail reducer of helicopter oil filler stopper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103062374A true CN103062374A (en) | 2013-04-24 |
| CN103062374B CN103062374B (en) | 2015-12-02 |
Family
ID=48105161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310008265.1A Active CN103062374B (en) | 2013-01-10 | 2013-01-10 | Tail reducer of helicopter oil filler stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103062374B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446383A (en) * | 2021-07-16 | 2021-09-28 | 中车太原机车车辆有限公司 | Gearbox ventilation device and gearbox |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4807847A (en) * | 1988-04-04 | 1989-02-28 | Martz Mitchell R | Valved oil pan plug |
| US20070102336A1 (en) * | 2005-11-03 | 2007-05-10 | Akiyoshi Komine | Liquid filtration device |
| KR20080055445A (en) * | 2006-12-15 | 2008-06-19 | 현대자동차주식회사 | Lubrication drain plug |
| CN102619964A (en) * | 2012-04-11 | 2012-08-01 | 三一重工股份有限公司 | Ventilation plug |
| CN202579949U (en) * | 2012-04-06 | 2012-12-05 | 邓亚民 | Ventilation cap of speed changer |
-
2013
- 2013-01-10 CN CN201310008265.1A patent/CN103062374B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4807847A (en) * | 1988-04-04 | 1989-02-28 | Martz Mitchell R | Valved oil pan plug |
| US20070102336A1 (en) * | 2005-11-03 | 2007-05-10 | Akiyoshi Komine | Liquid filtration device |
| KR20080055445A (en) * | 2006-12-15 | 2008-06-19 | 현대자동차주식회사 | Lubrication drain plug |
| CN202579949U (en) * | 2012-04-06 | 2012-12-05 | 邓亚民 | Ventilation cap of speed changer |
| CN102619964A (en) * | 2012-04-11 | 2012-08-01 | 三一重工股份有限公司 | Ventilation plug |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446383A (en) * | 2021-07-16 | 2021-09-28 | 中车太原机车车辆有限公司 | Gearbox ventilation device and gearbox |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103062374B (en) | 2015-12-02 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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