CN102765473A - Oil distribution device for propeller variable pitch - Google Patents
Oil distribution device for propeller variable pitch Download PDFInfo
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- CN102765473A CN102765473A CN2012102867680A CN201210286768A CN102765473A CN 102765473 A CN102765473 A CN 102765473A CN 2012102867680 A CN2012102867680 A CN 2012102867680A CN 201210286768 A CN201210286768 A CN 201210286768A CN 102765473 A CN102765473 A CN 102765473A
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Abstract
The invention discloses an oil distribution device for propeller variable pitch. The oil distribution device comprises a casing, a propeller shaft and an oil distribution mechanism, wherein the casing is arranged behind a propeller and fixedly arranged on a culvert way hub; the propeller shaft can be freely rotatably supported in the casing, the front end of the propeller shaft extends out of the casing to be fixedly connected with a propeller hub of the propeller, and an inner oil distribution core for supplying oil to the propeller hub is arranged in the propeller shaft; and the oil distribution mechanism comprises an inner oil distribution lining sleeved outside the propeller shaft and an outer oil distribution lining sleeved in the casing. A plurality of sliding sealing annular grooves are axially arranged in the space between the inner oil distribution lining and the outer oil distribution lining and are separated by expansion rings. The plurality of sliding sealing annular grooves include variable pitch oil annular grooves which are communicated with a variable pitch oil pipe nozzle on the rear end face of the casing and an oil way in the inner oil distribution core. Due to the fact that the oil distribution device adopts a rear end oil supplying mode, on one hand, structural design of a speed reducer and a transmission shaft of the propeller is simplified; and on the other hand, the propeller obtains rear supporting, the vibration of the propeller is remarkably reduced, and the strength safety coefficient of a boat is increased.
Description
Technical field
The present invention relates to a kind of screw propeller displacement with dividing oily device.
Background technology
The propulsion system of existing large and medium-sized hovercraft generally adopts the displacement air screw, to keep the mating uniting and adjustment of realization machine oar with the work of driving engine through the propeller blade displacement.
Variable pitch propeller air at work need to be rotating propeller pitch grain transport oil, transmission oil pitch functions implemented by the oil separation device, according to the location of the oil installations, there in front of oil and oil beneath the sub- oil pitch form.Here, " the place ahead " in " the place ahead oil transportation " is inequality with the common sense in the daily life, and it is meant that for air screw the orientation at transmission shaft one side place is called " the place ahead ".
At present, forwardly in the oily displacement form of the branch of oil transportation, the inside of dividing oily device to be integrated in retarder, with reducer integrated, integrated level is high, but function is too complicated.U.S. LCAC LCACs for example, screw propeller cantilever support be in the preceding 1 meter place of duct ventilation inlet, and the not only torsion pass but also pass axial force and diametral load of oar axle also need be beaten many radial direction oil hole and realized oil transportations, and design difficulty is big, manufacturing, maintenance cost are high.The manufacturing assembly process process of below oil transportation scheme is poor.
Summary of the invention
The object of the present invention is to provide a kind of screw propeller displacement with dividing oily device,, reduce the complexity of oar axle to overcome the deficiency that existing displacement divides oily device.
To this end, the present invention provides a propeller oil separator apparatus, comprising: a casing, and is fixed to the rear of the propeller is located in the valley ducted; propeller shaft rotatably supported in the casing, and the front projecting machines cartridge, used in conjunction with a fixed propeller paddle Valley connection, which are equipped with paddle shaft paddle grain supply to the inner core of the oil; and the oil bodies, including sets in between the casing and the inner propeller shaft oil separator liner and the outer liner of the oil, wherein the inner liner of the oil between the liner and the outer space of the oil through the expansion ring separated by a plurality of axially sliding sealing ring groove, wherein the groove comprises a plurality of sliding sealing rings oil ring groove pitch, the pitch oil ring groove, respectively the rear end surface of the casing pipe pitch of the oil nozzle and the inner oil passage communicates within the core.
Further, the position corresponding to each displacement oil ring groove on the above-mentioned interior branch wick offers the rubber sealing annular groove, and the rubber sealing annular groove is communicated with respectively with displacement oil ring groove and the interior minute interior oil duct of wick.
Further, the piston ring between the above-mentioned adjacent two slipper seal annular grooves comprises envelope gas piston ring and oil sealing piston ring.
Further, above-mentioned oar axle is bearing in the casing through two bearings that are provided with at interval, two bearings comprise the position preceding coro bearng and position after deep groove ball bearing.
Further, above-mentioned casing comprises body and to the oily lining of joining of each slipper seal annular groove fuel feeding.
Further, divide oily lining in above-mentioned and divide oily lining all in the axially spaced-apart zone between two bearings outward.
Further; The first lubricating oil annular groove, the first displacement oil ring groove, the second displacement oil ring groove, the second lubricating oil annular groove and oil return annular groove that above-mentioned many slipper seal annular grooves are arranged in order before and after comprising vertically; Wherein, the first lubricating oil annular groove and the second lubricating oil annular groove are communicated with the lubricating oil ozzle of casing aft end face.
Further, the front side of the above-mentioned first lubricating oil annular groove only is provided with piston ring one, and the compressed gap of lubricating oil through piston ring is to the coro bearng spray lubrication with through joining oil spit hole in the oily lining to the deep groove ball bearing spray lubrication.
Further, the cylindrical shape of the casing, plug in installed in ducted Valley.
Further, be covered with the rectification tail cone on the aft end face of above-mentioned casing, the leading section of oar axle has the end face tooth flange that has the end face tooth.
In the present invention, the oil device is located behind the propeller, the use of oil back manner, while the oil through the inner core to provide a propeller blade pitch grain oil, on the other hand a rear supporting the propeller, the propeller so shaft hole need to design, to simplify the propeller shaft of the gear unit design, such processing, assembly, and maintenance; Further, to obtain the post supporting the propeller, the propeller shaft and the cantilever compared to significantly reduced vibration of the propeller small.
Except top described purpose, characteristic and advantage, other purpose, characteristic and advantage that the present invention has are with combining accompanying drawing to do further detailed explanation.
Description of drawings
Constitute this specification sheets a part, be used for further understanding accompanying drawing of the present invention and show the preferred embodiments of the present invention, and be used for explaining principle of the present invention with specification sheets.Among the figure:
Fig. 1 is that screw propeller according to the present invention is with dividing oily Unit Installation position;
Fig. 2 is that screw propeller according to the present invention is with the structural representation that divides oily device; And
Fig. 3 is that screw propeller according to the present invention is with the local structure scheme drawing that divides oily device.
Description of reference numerals
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Fig. 1 is that screw propeller according to the present invention is with dividing oily Unit Installation position.Shown in Figure 1, the gas turbine 10 through an intermediate flexible transmission link drives the input shaft 11, the input gear 12 into the flexible shaft 11 is decelerated by the output shaft 13, the output elastic driving variable pitch propeller 15, variable pitch propeller 15 is ducted 14 , ducted 14 of the front bracket 141 via the output elastic thrust bearing shaft 13, oil device 20 is cylindrical, variable pitch propeller 15 is located right behind the plug-in ducted ducted 14 grain 142 and through the bolt fixed pitch propeller 15 is used to transport oil pitch, oil device 20 has rectified the rear tail cone mask 16.
The displacement air screw is preferably hydraulic centrifugal formula displacement air screw, below in conjunction with Fig. 2 and Fig. 3 a minute oily device is described in detail.
Fig. 2 is that screw propeller according to the present invention is with the structural representation that divides oily device.Shown in Figure 2, the oil unit 20 includes: receiver 21, is located behind the propeller 15 and 15 fixed to the ducted propeller grain 142; propeller shaft 22, one end rotatably supported in the casing 21, the other one end of the casing 21 extends for a paddle with the propeller 15 is fixedly connected valleys, which are equipped with paddle to paddle shaft 22 within the sub-grain fuel oil core 23, and the oil mechanism 24, including sets in propeller shaft 22 within the outer sleeve 241 and sets the oil in the outer casing of the oil bushing 242, of which the oil inside the oil hub 241 and outer sleeve 242 through the space between the piston ring axially separated a plurality of sliding seal ring groove 245, wherein the plurality of sliding seal ring groove 245 includes a casing 21 from the rear end surface 21a of the variable nozzle 25 communicating pipe pitch oil ring groove 23 of the inner core of the oil corresponding to the variable from the oil ring groove is provided with a position and pitch oil ring groove communicating seal ring groove 231 Aprons, Aprons seal ring groove 231 and the inner core of the oil inside the oil passage 232 communicating.
Oil separation device works as follows: the casing 21 fixed and 15 driven propeller propeller shaft 22 rotates, making the oil inside the oil hub 241 and outer sleeve 242 rotates each other, separated by the piston ring oil ring groove pitch status remains the same, so on the one hand connected with the outside pitch pipe tubing nozzle 25 communicates with the other hand, the oil inside the oil passage 232 communicates the core, in order to achieve pitch oil via ducted 14, guide 143, ducted Valley 142, pitch pipe nozzle 25, oil body 24, the inner core 23 and eventually the oil directly to the propeller blade 15 grain supply.
Screw propeller oil return and leakage of oil everywhere and nozzle lubricating oil all flow to the oil back chamber 211a (below will describe in detail) of casing; Oil back chamber 211a has the function of drains receptacle; The inner chamber below offers the return opening of rectangle interface, leads to dump pump, and oil mist separator is received in the top.
In the present invention, the oil device is located behind the propeller, while the oil through the inner core to provide a propeller blade pitch grain oil, on the other hand a rear supporting the propeller, the propeller shaft propeller so need to design the hole, thereby simplifies the paddle shaft and propeller gearbox design, making processing, assembling, easy maintenance; addition, after the propeller got supported with cantilever paddle shaft compared to propeller vibration significantly reduced, by air boat hull force scattered, hull strength safety factor.
Preferably, the piston ring between the adjacent two slipper seal annular grooves comprise envelope gas with graphite piston ring 243 and oil sealing with bronze piston ring 244.So, the displacement oil leakage quantity seldom.
Preferably, casing 21 comprises body 211 and joins oily lining 212 that the oil duct of joining oily lining 212 is communicated with the displacement oil pipe mouth 25 of displacement oil ring groove and casing 21 bodies 211 aft end faces respectively, is provided with the oil back chamber 211a that collects lubricating oil in the body 211 of casing 21.Be set to body and join oily lining through casing, make things convenient for the setting of oil back chamber and offering of the circumferential slideway of displacement oil, make that the processing technology of casing is more reasonable.
Preferably, oar axle 22 is bearing in the body 211 of casing 21 through two bearings that are provided with at interval, the oily lining of interior branch 241, divides oily lining 242 and join oily lining 212 all the axially spaced-apart between two bearings is regional outward.So, divide oily lining 241 in forming through the two bearings separation, divide oily lining 242 and join the arrangement space of oily lining 212 outward, the oily lining of interior branch 241, divide oily lining 242 and join rational and compact, the reliable in structure of oily lining 212 outward.
Preferably; The first lubricating oil annular groove 245a, the first displacement oil ring groove 245b, the second displacement oil ring groove 245c, the second lubricating oil annular groove 245d and oil return annular groove 245e that many slipper seal annular grooves 245 are arranged in order before and after comprising vertically; Wherein, It is lubricated that the first lubricating oil annular groove 245a and the second lubricating oil annular groove 245d are that piston ring provides, to increase the life-span of centrifugal oil separator structure.
Join that the position corresponding to each lubricating oil annular groove also offers the axial oil duct 212b of lubricating oil in the oily lining 212; The axial oil duct 212b of lubricating oil all keeps being communicated with the first lubricating oil annular groove 245a, the second lubricating oil annular groove 245d, is communicated with the lubricating oil ozzle 26 of casing 21 body aft end faces simultaneously.The quantity of the axial oil duct 212b of lubricating oil can only have one and get final product, and joins the processing technology of oily lining 212 with simplification.
Preferably, two bearings be respectively the position preceding coro bearng 31 and position after deep groove ball bearing 32, wherein; The coro bearng bearing radial force; Do not bear axial force, deep groove ball bearing bears bigger axial force and less diametral load, to satisfy the force request of oar axle.
Preferably; The front side of the first lubricating oil annular groove only is provided with piston ring one; Get into the compressed gap (for example 0.4 to 0.45mm) of lubricating oil through piston ring among the first lubricating oil annular groove 245a to coro bearng 31 spray lubrications, in addition through the oil spit hole 212c that is communicated with the axial oil duct 212b of the lubricating oil of joining oily lining to deep groove ball bearing 32 spray lubrications.
Preferably, the oil unit of a cylindrical enclosure, pitch pipe nozzles and oil nozzles are set in the casing of the rear end, does not prevent the oil installations axial load ducted valleys, all tube Zuidou Rectifier tail vertebral hooded look clean and beautiful, the casing process and installation is very good.Ducted without the need to open windows on the valley, avoiding ducted stiffness decreases.
Preferably, divide casing 21, protecgulum 27, the bonnet 28 of oily device to select in light weight, intensity aluminum alloy materials preferably for use, and adopt surface anodization to handle, to prevent salt fog, the damp and hot corrosion that causes.Adopt piston ring slipper seal mechanism 29 between protecgulum 27 and the casing 21, prevent that lubricating oil from leaking.
Preferably, the propeller shaft 22 has a distal end portion end surface of the flange gear 221, and the propeller blades to increase the connection strength valley.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a screw propeller displacement is characterized in that with dividing oily device, comprising:
The casing (21) of said propeller (15) and is fixed to the rear ducted Valley (142) on;
Propeller shaft (22) rotatably supported on the casing (21), and the projecting end of said casing, with said propeller (15) fixedly connected with a paddle Valley, wherein said paddle shaft (22) equipped with paddle grain supply to the inside of the oil core (23); and
Centrifugal oil separator structure (24); Comprise the oily lining of interior branch (241) and the outer oily lining (242) that divides that are set between said casing (21) and the said oar axle (22); Wherein, Divide oily lining (241) to divide vertically through piston ring in said and be separated with a plurality of slipper seal annular grooves (245) with the space between the outer oily lining of branch (242)
Wherein, said a plurality of slipper seal annular grooves (245) comprise the displacement oil ring groove, each said displacement oil ring groove respectively with the displacement oil pipe mouth (25) of the aft end face (21a) of said casing (21) and said in divide the oil duct (232) in the wick (23) to be communicated with.
2. screw propeller displacement according to claim 1 is with dividing oily device; It is characterized in that; The said interior position of dividing wick (23) to go up corresponding to each said displacement oil ring groove offers rubber sealing annular groove (231), and said rubber sealing annular groove (231) is communicated with respectively with said displacement oil ring groove and the said interior interior oil duct (232) of wick (23) that divides.
3. screw propeller displacement according to claim 1 is characterized in that with dividing oily device the piston ring between the adjacent two slipper seal annular grooves (245) comprises envelope gas piston ring (243) and oil sealing piston ring (244).
4. screw propeller displacement according to claim 1 is with dividing oily device; It is characterized in that; Said oar axle (22) is bearing in the casing (21) through two bearings that are provided with at interval, said two bearings comprise the position preceding coro bearng (31) and position after deep groove ball bearing (32).
5. screw propeller displacement according to claim 4 is characterized in that with dividing an oily device, and said casing (21) comprises body (211) and joins oily lining (212) to each said slipper seal annular groove (245) fuel feeding.
6. screw propeller displacement according to claim 5 is characterized in that with dividing oily device, divides in said oily lining (241) and the outer oily lining of branch (242) all in the axially spaced-apart zone between said two bearings.
7. screw propeller displacement according to claim 6 is with dividing oily device; It is characterized in that; The first lubricating oil annular groove (245a) that said many slipper seal annular grooves (245) are arranged in order before and after comprising vertically), the first displacement oil ring groove (245b), the second displacement oil ring groove (245c), the second lubricating oil annular groove (245d) and oil return annular groove (245e); Wherein, the said first lubricating oil annular groove (245a) and the second lubricating oil annular groove (245d) are communicated with the lubricating oil ozzle (26) of said casing (21) aft end face (21a).
8. screw propeller displacement according to claim 7 is with dividing oily device; It is characterized in that; The front side of the said first lubricating oil annular groove (245a) only is provided with piston ring one, and the compressed gap of said lubricating oil through said piston ring joined oil spit hole (212c) in the oily lining (212) to said deep groove ball bearing (32) spray lubrication to (31) spray lubrication of said coro bearng with through said.
As claimed in claim 1 with a variable pitch propeller of the oil, characterized in that said casing (21) cylindrical in shape, mounted in said plug ducted Valley (142) in the.
10. screw propeller displacement according to claim 1 is with dividing oily device; It is characterized in that; Be covered with rectification tail cone (16) on the aft end face (21a) of said casing (21), the leading section of said oar axle (22) has the end face tooth flange (221) that has the end face tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286768.0A CN102765473B (en) | 2012-08-13 | 2012-08-13 | Oil distribution device for propeller variable pitch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286768.0A CN102765473B (en) | 2012-08-13 | 2012-08-13 | Oil distribution device for propeller variable pitch |
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| CN102765473A true CN102765473A (en) | 2012-11-07 |
| CN102765473B CN102765473B (en) | 2015-04-15 |
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| CN201210286768.0A Active CN102765473B (en) | 2012-08-13 | 2012-08-13 | Oil distribution device for propeller variable pitch |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105579342A (en) * | 2013-09-24 | 2016-05-11 | 斯奈克玛 | Device for supplying hydraulic fluid to a hydraulic cylinder and mechanism for controlling the pitch of the blades of a turbine engine propeller comprising the hydraulic cylinder |
| CN106640928A (en) * | 2016-12-27 | 2017-05-10 | 中国南方航空工业(集团)有限公司 | Paddle shaft for aviation engine |
| CN106763658A (en) * | 2016-12-27 | 2017-05-31 | 中国南方航空工业(集团)有限公司 | Reduction case |
| CN109606647A (en) * | 2018-12-12 | 2019-04-12 | 惠阳航空螺旋桨有限责任公司 | A kind of propeller control |
| CN109606648A (en) * | 2018-12-12 | 2019-04-12 | 惠阳航空螺旋桨有限责任公司 | A kind of properller pitch-changing mechanism |
| CN110185760A (en) * | 2019-04-30 | 2019-08-30 | 中国航发南方工业有限公司 | The starshaped reducing gear of turbo oar engine |
| CN111678705A (en) * | 2020-04-30 | 2020-09-18 | 中国航发南方工业有限公司 | Device for propeller sealing test and blade deflection angle adjustment test |
| CN112498640A (en) * | 2020-11-20 | 2021-03-16 | 惠阳航空螺旋桨有限责任公司 | Oil distribution device for lubricating oil pipe for propeller |
| CN113071664A (en) * | 2021-04-06 | 2021-07-06 | 清华大学 | Hub assembly for helicopter rotors |
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| US4907992A (en) * | 1988-10-17 | 1990-03-13 | Bird-Johnson Company | Oil distribution box for a marine controllable pitch propeller |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105579342A (en) * | 2013-09-24 | 2016-05-11 | 斯奈克玛 | Device for supplying hydraulic fluid to a hydraulic cylinder and mechanism for controlling the pitch of the blades of a turbine engine propeller comprising the hydraulic cylinder |
| CN106640928A (en) * | 2016-12-27 | 2017-05-10 | 中国南方航空工业(集团)有限公司 | Paddle shaft for aviation engine |
| CN106763658A (en) * | 2016-12-27 | 2017-05-31 | 中国南方航空工业(集团)有限公司 | Reduction case |
| CN106640928B (en) * | 2016-12-27 | 2019-05-31 | 中国航发南方工业有限公司 | Aero-engine paddle shaft |
| CN109606647B (en) * | 2018-12-12 | 2024-06-18 | 惠阳航空螺旋桨有限责任公司 | Propeller pitch-changing mechanism |
| CN109606647A (en) * | 2018-12-12 | 2019-04-12 | 惠阳航空螺旋桨有限责任公司 | A kind of propeller control |
| CN109606648A (en) * | 2018-12-12 | 2019-04-12 | 惠阳航空螺旋桨有限责任公司 | A kind of properller pitch-changing mechanism |
| CN110185760A (en) * | 2019-04-30 | 2019-08-30 | 中国航发南方工业有限公司 | The starshaped reducing gear of turbo oar engine |
| CN111678705B (en) * | 2020-04-30 | 2022-06-07 | 中国航发南方工业有限公司 | Device for propeller sealing test and blade deflection angle adjustment test |
| CN111678705A (en) * | 2020-04-30 | 2020-09-18 | 中国航发南方工业有限公司 | Device for propeller sealing test and blade deflection angle adjustment test |
| CN112498640A (en) * | 2020-11-20 | 2021-03-16 | 惠阳航空螺旋桨有限责任公司 | Oil distribution device for lubricating oil pipe for propeller |
| CN113071664A (en) * | 2021-04-06 | 2021-07-06 | 清华大学 | Hub assembly for helicopter rotors |
| CN113071664B (en) * | 2021-04-06 | 2021-12-14 | 清华大学 | Hub assembly for helicopter rotors |
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| CN102765473B (en) | 2015-04-15 |
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Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |