CN205418077U - Maintain the body that locks of undercarriage down lock - Google Patents
Maintain the body that locks of undercarriage down lock Download PDFInfo
- Publication number
- CN205418077U CN205418077U CN201620031304.9U CN201620031304U CN205418077U CN 205418077 U CN205418077 U CN 205418077U CN 201620031304 U CN201620031304 U CN 201620031304U CN 205418077 U CN205418077 U CN 205418077U
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- CN
- China
- Prior art keywords
- lock
- locking
- undercarriage
- spring
- strut
- 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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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a maintain the body that locks of undercarriage down lock, include: go up vaulting pole (1), lower supporting rod (2), go up locking lever (3), down locking lever (4), down lock unblank pressurized strut (5), the external maintain the body of locking (6), spring (601), support a section of thick bamboo (602), one -level telescopic link (603), two -stage telescopic rod (604), connect (605), connecting axle (7), installation axle (8), signal device (9), adopt vaulting pole (1) on the undercarriage, lower supporting rod (2) and last locking lever (3), down locking lever (4), dual mode central excessively realize the reliable locking behind the gear down, realize the supporting role after the putting down of undercarriage. Provide the signal of telecommunication that gear down accomplished through lower locking lever (4) and the contact laminating of signal device (9). Externally lock, maintain the body (6) can accomplish reliably locking of gear down in -process down lock through the tensile atress of spring, the down lock back of locking simultaneously, the spring is in tensile state, can guarantee the reliable lock -out state of down lock all the time.
Description
Technical field
This utility model belongs to technical field of aircraft structure design, relates to the maintaining body of locking of a kind of undercarriage down lock.
Background technology
Down lock is locked by up lock cylinder or spring mechanism after putting down and keeps locking state by existing undercarriage.Down lock is divided into external strut latch mechanism and the latch mechanism being placed in retractable actuating cylinder.Undercarriage is mainly locked in extended position by the Center of crossing of upper and lower locking bar with upper and lower strut by external strut latch mechanism；It is placed in the latch mechanism within pressurized strut and by lock claw mechanism, undercarriage is locked in extended position after piston rod movement puts in place.Downlock mechanism bear aircraft a fraction of take off, land and slide race load.Due to aircraft landing gear structures and the difference of layout, the locking form after undercarriage strut is locked and put down also is respectively arranged with feature.
Utility model content
The purpose of this utility model: this utility model belongs to undercarriage control design field, relate to a kind of gear down after the locking and be maintained at the latch mechanism device of locking state of down lock, it is ensured that positive lock after gear down.
The technical solution of the utility model:
This technology is contemplated that: adjusted by the layout of oil-gas cavity, the brand-new design of version, it is achieved a kind of buffer contrary with convention buffer working method.This buffer, not by external load time, is in short status；When subjected to external, buffer elongation.
This buffer has the energy absorption ability that conventional Take-off and Landing frame buffer is equal simultaneously, and i.e. during aircraft landing, first buffer is stretched, oil chamber volume reduces, fluid flows through damping hole at a high speed, forces air cavity pressure to raise, aircraft potential energy is changed into fluid heat energy and gas potential energy simultaneously.When gas potential energy is higher than outside energy, buffer shortens again, forces fluid reversely to flow through damping hole, gas potential energy is converted into fluid heat energy, and heat energy is delivered in external environment by buffer component, thus realizes the absorption of energy.
Concrete structure is as follows: the maintaining body of locking of a kind of undercarriage down lock, including: upper strut (1), lower supporting rod (2), upper lock rod (3), lower locking bar (4), down lock unblank pressurized strut (5), external maintaining body of locking (6), spring (601), support tube (602), one-level expansion link (603), two grades of expansion links (604), joint (605), connecting shafts (7), axle (8), advertisers (9) are installed；Wherein, one end of upper strut (1) is hingedly mounted on aircaft configuration anchor tip by installing axle (8), one end of lower supporting rod (2) is hinged on the joint of undercarriage, bolted splice is passed through on undercarriage in one end of upper lock rod (3), bolted splice is passed through in one end of the two ends of upper lock rod (3) and lower locking bar (4), the two ends of upper strut (1) and lower supporting rod (2) and lower locking bar (4) by hinged by connecting shaft (7), external lock, one end of maintaining body (6) is bolted on the joint of structure, down lock unblank pressurized strut (5) one end by bolted splice on lower supporting rod (2), the two ends of external maintaining body of locking (6) and down lock unblank pressurized strut (5) two ends by bolted splice on lower locking bar (4)；External lock, maintaining body is mainly made up of spring (601), support tube (602), one-level expansion link (603), two grades of expansion links (604), joints (605)；The upper end of spring (601) is connected with aircaft configuration anchor tip, the lower end of spring (601) is wrapped on support tube (602), one-level expansion link (603) can in support tube (602) slip certain length, two grades of expansion links (604) can in one-level expansion link (603) slip certain length, joint (605) is threadingly attached on two grades of expansion links (604).
Advantage of the present utility model: this utility model is simple and compact for structure, reliability is high, lightweight, it is simple to maintenance test, good manufacturability, the support after both can guarantee that gear down and locking, can provide again the upper lock signal after gear down locking.This utility model has good adaptability simultaneously, it is possible to complete application on other undercarriage lock mechanism devices after certain design improves.
Accompanying drawing illustrates:
Fig. 1 is this utility model gear support and downlock mechanism schematic diagram；
Fig. 2 is this utility model undercarriage down lock locking state schematic diagram；
Fig. 3 is that this utility model gear down support means remaining protects strut schematic diagram；
Fig. 4 is the folded state schematic diagram after this utility model gear up.
Wherein, strut is 1. gone up；2. lower supporting rod；3. upper lock rod；4. descend locking bar；5. down lock is unblanked the external maintaining body of locking of pressurized strut 6.；601. spring；602. support tube；603. one-level expansion links；604. 2 grades of expansion links；605. joint；7. connecting shaft；8. axle is installed；9. advertiser；
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail.
Undercarriage is when packing up, upper strut (1), lower supporting rod (2) and upper lock rod (3), lower locking bar (4) are in folded state, and one-level expansion link (603) is interior with two grades of expansion links (604) retraction support tube (602)；Undercarriage upper and lower strut when putting down plays a supportive role, it it is the main stressed member of Landing Gear System, one-level expansion link (603) and two grades of expansion links (604) are in full elongation state relative to support tube (602), spring (601) is in stretching stress, for keeping the lock-out state of down lock.
The gear down incipient stage, lower locking bar (4) is in disengaged position with the contact of advertiser (9), when being gear down in ending phase, under undercarriage, locking bar (4) is fitted with the contact of advertiser (9), and trigger signal device (9) provides the signal of telecommunication gear down locked.
State shown in Fig. 1 be gear down after lock-out state of locking, at this moment on undercarriage, strut (1) and undercarriage lower supporting rod (2) were in center situation, there is a downward amount of deflection, as it is shown on figure 3, center 1.85mm crossed by upper and lower strut；Simultaneously upper lock rod (3) and lower locking bar (4) be also at center situation, upper lock rod (3) and lower locking bar (4) by external locking, maintaining body (6) and be positioned at fitting tightly of contact surface after upper and lower locking bar crosses center and kept center situation (Fig. 2).If strut bears tensile load, external maintaining body of locking (6) can keep upper lock rod (3) and lower locking bar (4) to be in center situation, and upper lock rod (3) fits tightly, with lower locking bar (4) contact surface, the lock-out state that can guarantee that it is good.When strut bears compressive load, trend is increased by amount of deflection downward between strut (1) and lower supporting rod (2) on undercarriage, upper lock rod (3) and lower locking bar (4) bear tensile load, because external maintaining body of locking (6) ensure that upper lock rod (3) and lower locking bar (4) were in center situation, upper lock rod (3) is non-stretchable with lower locking bar (4), it is ensured that the good lock-out state of downlock mechanism.
Claims (1)
1. a maintaining body of locking for undercarriage down lock, including: upper strut (1), lower supporting rod (2), upper lock rod (3), lower locking bar (4), down lock unblank pressurized strut (5), external maintaining body of locking (6), spring (601), support tube (602), one-level expansion link (603), two grades of expansion links (604), joint (605), connecting shafts (7), axle (8), advertisers (9) are installed；Wherein, one end of upper strut (1) is hingedly mounted on aircaft configuration anchor tip by installing axle (8), one end of lower supporting rod (2) is hinged on the joint of undercarriage, bolted splice is passed through on undercarriage in one end of upper lock rod (3), bolted splice is passed through in one end of the two ends of upper lock rod (3) and lower locking bar (4), the two ends of upper strut (1) and lower supporting rod (2) and lower locking bar (4) by hinged by connecting shaft (7), external lock, one end of maintaining body (6) is bolted on the joint of structure, down lock unblank pressurized strut (5) one end by bolted splice on lower supporting rod (2), the two ends of external maintaining body of locking (6) and down lock unblank pressurized strut (5) two ends by bolted splice on lower locking bar (4)；External lock, maintaining body is mainly made up of spring (601), support tube (602), one-level expansion link (603), two grades of expansion links (604), joints (605)；The upper end of spring (601) is connected with aircaft configuration anchor tip, the lower end of spring (601) is wrapped on support tube (602), one-level expansion link (603) can in support tube (602) slip certain length, two grades of expansion links (604) can in one-level expansion link (603) slip certain length, joint (605) is threadingly attached on two grades of expansion links (604).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031304.9U CN205418077U (en) | 2016-01-13 | 2016-01-13 | Maintain the body that locks of undercarriage down lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031304.9U CN205418077U (en) | 2016-01-13 | 2016-01-13 | Maintain the body that locks of undercarriage down lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205418077U true CN205418077U (en) | 2016-08-03 |
Family
ID=56539231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620031304.9U Expired - Fee Related CN205418077U (en) | 2016-01-13 | 2016-01-13 | Maintain the body that locks of undercarriage down lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205418077U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550191A (en) * | 2019-08-16 | 2019-12-10 | 西安飞机工业（集团）有限责任公司 | Aircraft landing gear position indicating mechanism and indicating method |
| CN111038687A (en) * | 2019-12-10 | 2020-04-21 | 中国航空工业集团公司成都飞机设计研究所 | Mechanical dual-redundancy undercarriage retraction electric stay bar |
| CN113753222A (en) * | 2021-09-24 | 2021-12-07 | 中国航空工业集团公司西安飞机设计研究所 | Side stay bar mechanism of landing gear |
| CN113753224A (en) * | 2021-09-21 | 2021-12-07 | 中国航空工业集团公司西安飞机设计研究所 | Disconnect-type undercarriage vaulting pole latch mechanism |
-
2016
- 2016-01-13 CN CN201620031304.9U patent/CN205418077U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550191A (en) * | 2019-08-16 | 2019-12-10 | 西安飞机工业（集团）有限责任公司 | Aircraft landing gear position indicating mechanism and indicating method |
| CN111038687A (en) * | 2019-12-10 | 2020-04-21 | 中国航空工业集团公司成都飞机设计研究所 | Mechanical dual-redundancy undercarriage retraction electric stay bar |
| CN111038687B (en) * | 2019-12-10 | 2022-08-09 | 中国航空工业集团公司成都飞机设计研究所 | Mechanical dual-redundancy undercarriage retraction electric stay bar |
| CN113753224A (en) * | 2021-09-21 | 2021-12-07 | 中国航空工业集团公司西安飞机设计研究所 | Disconnect-type undercarriage vaulting pole latch mechanism |
| CN113753222A (en) * | 2021-09-24 | 2021-12-07 | 中国航空工业集团公司西安飞机设计研究所 | Side stay bar mechanism of landing gear |
| CN113753222B (en) * | 2021-09-24 | 2023-09-22 | 中国航空工业集团公司西安飞机设计研究所 | Undercarriage side stay bar mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20170113 |