CN104329553B - Unstressed lubrication channel structure - Google Patents
Unstressed lubrication channel structure Download PDFInfo
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- CN104329553B CN104329553B CN201410569337.4A CN201410569337A CN104329553B CN 104329553 B CN104329553 B CN 104329553B CN 201410569337 A CN201410569337 A CN 201410569337A CN 104329553 B CN104329553 B CN 104329553B
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- lubrication
- bushing
- ring
- oiling
- unstressed
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Abstract
The invention discloses a kind of unstressed lubrication channel structure.The unstressed lubrication channel structure includes that master holds axle, the bushing with centre bore and the matrix with centre bore；The master holds the axis rotation that axle is mounted in the centre bore of bushing and axle can be held around master, and the bushing is mounted in the centre bore of matrix and is connected with matrix interference；The master holds；The master holds interference on axle lubrication ring, and oiling seat is housed on the lubrication ring, and pump nozzle is housed on the oiling seat；The pump nozzle, oiling seat, lubrication ring are connected with grease channel and form oiling passage.The present invention improves the fatigue life of structural member, improves the installation maintainability of structural member.
Description
Technical field
The present invention relates to aircraft landing gear structures design field, more particularly to one kind of the important rotation portion of undercarriage
Unstressed lubrication channel structure.
Background technology
Undercarriage is the important component taken off, land, and the failure of each part or part can cause undercarriage
Structural damage or the forfeiture of body function, therefore, the design of undercarriage each parts needs to be brought in view of details
Fatigue or cracks influence.For Holder joint of rising and falling, especially the Lubrication Design of important rotation portion, directly affects primary structure
The loading conditions and mechanical property of part.
The lubrication of Holder joint of rising and falling, not only facilitates anticorrosion, strengthens the performance of parts, and contributes to repairing
When dismounting joint, installation to equipment, maintenance bring convenience.As Figure 1-3, traditional lubrication channel design typically has screw thread
Connecting-type（Fig. 1）, elastic conjunction type（Fig. 2）, mandrel lubrication assistant type（Fig. 3）.In Fig. 1, the direct threaded screw thread on matrix,
It is directly connected to from screw-type pump nozzle, the shortcoming of this mode is：Through whole wall thickness or the spiral shell on basic load path
Stricture of vagina, under repeated load effect, will produce additional stress raisers and potential formation of crack, and machine adds the sharp edges of screw thread
Also fatigue crack is easily produced at angle.In Fig. 2, directly the threaded installing hole on matrix, directly will by the way of elastic conjunction
Pump nozzle is pressed in structural member, and the shortcoming of this lubricating system is：Elastic conjunction may produce additional stress and increase and cause out
Split, and be not easy to later stage demolition and maintenance.In Fig. 3, increase mandrel in primary load bearing axle, open lubrication assistant passage, it is many to reach
Locate the purpose of lubrication, the shortcoming of this lubricating system is：Easily cracked by the horizontal lubrication hole of primary load bearing axle, caused then
Structural member fails.
The content of the invention
The present invention is intended to provide a kind of unstressed lubrication channel structure, by the version for optimizing the lubrication channel, can
The fatigue life of structural member is improved, improves the installation maintainability of structural member.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of unstressed lubrication channel structure, which is structurally characterized in that, holds axle, the bushing with centre bore including master and has
The matrix of centre bore；The master holds the axis rotation that axle is mounted in the centre bore of bushing and axle can be held around master, and the bushing is mounted in
It is connected in the centre bore of matrix and with matrix interference；The master holds；The master holds axle
Upper interference has lubrication ring, and oiling seat is housed on the lubrication ring, and pump nozzle is housed on the oiling seat；The pump nozzle, note
Font, lubrication ring are connected with grease channel and form oiling passage.
Thus, the present invention being fixed together bushing and matrix by way of interference connects, meanwhile, lubricating oil
By in oiling passage orientation injection grease channel, it is to avoid leaking for lubricating oil, traditional important feature part is solved main
The structural members such as the lubrication channel design problem of rotation portion, the lubrication ring of increase avoid directly threaded on important Force transmission partses
Screw thread and caused fatigue crack, it is to avoid additional stress that pump nozzle elastic conjunction is formed, while it also avoid passing through
The horizontal lubrication hole of primary load bearing axle and the crackle that produces.
It is below the technical scheme of further improvement of the present invention：
Preferably, the grease channel is the lubrication groove being opened on bushing inwall.Further, the lubrication groove is
Spiral lubrication groove or grating type lubrication groove.
As a kind of specific installation form, oiling seat installing hole on the lubrication ring, is provided with, the oiling seat is profile of tooth
Pump nozzle seat, the parts of tooth of the oiling seat are installed in the oiling seat installing hole.
The inwall of the lubrication ring and master hold, the inwall and bushing of the lubrication ring
The second sealing ring is provided between outer wall, and first sealing ring and the second sealing ring set up separately in oiling passage both sides.Thus, two
The path seal that leaks of lubricating oil is lived by road sealing ring, is only flowed in the grease channel of bushing to realize lubrication, is realized lubrication
Orient fast and effectively purpose.
Compared with prior art, the invention has the beneficial effects as follows：The present invention is installed, safeguards efficient and convenient；Remain important
The structural intergrity of load-carrying member, improves the use fatigue life of load-carrying member.
Description of the drawings
Fig. 1 is a kind of conventional lubrication passage sketch；
Fig. 2 is another kind of conventional lubrication passage sketch；
Fig. 3 is another conventional lubrication passage sketch；
Fig. 4 is the structure principle chart of one embodiment of the invention.
In figure
1- matrixes；2- bushings；3- primary load bearing axles；4- pump nozzles；5- mandrels；
6- pump nozzle seats；7- lubricates ring；The first sealing rings of 8-；The second sealing rings of 9-.
Specific embodiment
Below in conjunction with accompanying drawing 4 and embodiment, the present invention is further elaborated.
A kind of unstressed lubrication channel structure, as shown in figure 4, important feature part main rotation portion set up bushing,
The structural members such as lubrication ring, sealing ring, pump nozzle seat；To prevent directly contact between the constitutional detail for coordinating, so as to reduce joint
The repair of place's defect, sets up bushing herein.To ensure that lubrication is abundant, bushing is got on the bus and makes the lubrication of spiral or grid type
Groove.The threaded pump nozzle seat installing hole on lubrication ring, the direct threaded lubrication hole on important load-carrying member, does not remain important holding
The structural intergrity of power component, ensure that its performance is not destroyed then.And, the car system of lubrication groove and sealing on bushing
The installation of circle 8,9, it is ensured that the quick effectiveness of lubrication.
Concrete installation process is as follows:
1）Bushing 2 is loaded in the hole of matrix 1 using hot-assembling method；
2）Primary load bearing axle 3 is loaded in 2 hole of bushing；
3）Profile of tooth pump nozzle seat 6 is pressed on lubrication ring 7 in corresponding aperture, pump nozzle 4 is pressed in pump nozzle seat 6, will
Sealing ring 8,9 is installed in lubrication 7 endoporus of ring in corresponding sealed groove, and then integral installation is on primary load bearing axle 3.
The content that above-described embodiment is illustrated should be understood to that these embodiments are only used for being illustrated more clearly that the present invention, and not
For limiting the scope of the present invention, after the present invention has been read, the various equivalent form of values of the those skilled in the art to the present invention
Modification fall within the application claims limited range.
Claims (4)
1. a kind of unstressed lubrication channel structure, is characterized in that, hold axle including master（3）, the bushing with centre bore（2）And have
The matrix of centre bore（1）；The master holds axle（3）It is mounted in bushing（2）Centre bore in and can around lead hold axle（3）Axis rotation,
The bushing（2）It is mounted in matrix（1）Centre bore in and and matrix（1）Interference connects；The master holds axle（3）With bushing（2）It
Between have grease channel；The master holds axle（3）Upper interference has lubrication ring（7）, the lubrication ring（7）It is upper that oiling seat is housed
（6）, the oiling seat（6）It is upper that pump nozzle is housed（4）；The pump nozzle（4）, oiling seat（6）, lubrication ring（7）It is logical with lubricating oil
Road is connected and forms oiling passage；
The lubrication ring（7）Inwall with master hold axle（3）The first sealing ring is provided between outer wall（8）, the lubrication ring（7）It is interior
Wall and bushing（2）The second sealing ring is provided between outer wall（9）, and first sealing ring（8）With the second sealing ring（9）Set up separately
Oiling passage both sides.
2. unstressed lubrication channel structure according to claim 1, is characterized in that, the grease channel is to be opened in lining
Set（2）Lubrication groove on inwall.
3. unstressed lubrication channel structure according to claim 2, is characterized in that, the lubrication groove is spiral lubrication groove
Or grating type lubrication groove.
4. unstressed lubrication channel structure according to claim 1, is characterized in that, the lubrication ring（7）On be provided with oiling
Seat installing hole, the oiling seat（6）For profile of tooth pump nozzle seat, the oiling seat（6）Parts of tooth be installed in the oiling seat
In installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569337.4A CN104329553B (en) | 2014-10-23 | 2014-10-23 | Unstressed lubrication channel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569337.4A CN104329553B (en) | 2014-10-23 | 2014-10-23 | Unstressed lubrication channel structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104329553A CN104329553A (en) | 2015-02-04 |
| CN104329553B true CN104329553B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410569337.4A Active CN104329553B (en) | 2014-10-23 | 2014-10-23 | Unstressed lubrication channel structure |
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|---|---|---|---|---|
| CN105598501A (en) * | 2016-03-31 | 2016-05-25 | 国营第六一六厂 | Converse boring processing device for intermittent deep hole |
| CN106195601A (en) * | 2016-07-29 | 2016-12-07 | 安徽江淮汽车股份有限公司 | A kind of grease nipple mounting structure |
| CN107902104B (en) * | 2017-11-17 | 2020-08-04 | 山东太古飞机工程有限公司 | Dismounting method for press-in type lubricating joint of airplane |
| CN111658930B (en) * | 2020-07-13 | 2023-05-26 | 河北云悦生物科技有限公司 | Desk type oxyhydrogen breathing machine |
| CN114738650B (en) * | 2022-04-29 | 2023-05-26 | 中国商用飞机有限责任公司 | Lubricating assembly and mounting mode thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4650430A (en) * | 1985-08-13 | 1987-03-17 | Brunswick Corporation | Marine drive gear case lubrication system |
| CN201895695U (en) * | 2010-11-12 | 2011-07-13 | 青特集团有限公司 | Knuckle bushing lubricating structure |
| CN102431875A (en) * | 2011-12-12 | 2012-05-02 | 苏州汉森电梯有限公司 | Step shaft sleeve for step shaft of escalator |
| CN202361049U (en) * | 2011-12-03 | 2012-08-01 | 太原矿山机器集团有限公司 | Oil inlet cover structure at pin shaft end of centralized lubricating system of heading machine |
| CN203430981U (en) * | 2013-09-13 | 2014-02-12 | 徐工集团工程机械股份有限公司科技分公司 | Novel lubricating structure for hinge pin of loading machine |
| CN203487903U (en) * | 2013-10-11 | 2014-03-19 | 中航飞机股份有限公司西安飞机分公司 | Bolt lock structure |
| CN203560701U (en) * | 2013-09-24 | 2014-04-23 | 广西柳工机械股份有限公司 | Solid grease filling device |
| CN103994146A (en) * | 2014-05-18 | 2014-08-20 | 金迪荣 | Balanced bearing |
| CN204164632U (en) * | 2014-10-23 | 2015-02-18 | 中航飞机起落架有限责任公司 | Unstressed lubrication channel structure |
-
2014
- 2014-10-23 CN CN201410569337.4A patent/CN104329553B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4650430A (en) * | 1985-08-13 | 1987-03-17 | Brunswick Corporation | Marine drive gear case lubrication system |
| CN201895695U (en) * | 2010-11-12 | 2011-07-13 | 青特集团有限公司 | Knuckle bushing lubricating structure |
| CN202361049U (en) * | 2011-12-03 | 2012-08-01 | 太原矿山机器集团有限公司 | Oil inlet cover structure at pin shaft end of centralized lubricating system of heading machine |
| CN102431875A (en) * | 2011-12-12 | 2012-05-02 | 苏州汉森电梯有限公司 | Step shaft sleeve for step shaft of escalator |
| CN203430981U (en) * | 2013-09-13 | 2014-02-12 | 徐工集团工程机械股份有限公司科技分公司 | Novel lubricating structure for hinge pin of loading machine |
| CN203560701U (en) * | 2013-09-24 | 2014-04-23 | 广西柳工机械股份有限公司 | Solid grease filling device |
| CN203487903U (en) * | 2013-10-11 | 2014-03-19 | 中航飞机股份有限公司西安飞机分公司 | Bolt lock structure |
| CN103994146A (en) * | 2014-05-18 | 2014-08-20 | 金迪荣 | Balanced bearing |
| CN204164632U (en) * | 2014-10-23 | 2015-02-18 | 中航飞机起落架有限责任公司 | Unstressed lubrication channel structure |
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| Publication number | Publication date |
|---|---|
| CN104329553A (en) | 2015-02-04 |
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