CN204310037U - Uplock coordination valve - Google Patents
Uplock coordination valve Download PDFInfo
- Publication number
- CN204310037U CN204310037U CN201420778260.7U CN201420778260U CN204310037U CN 204310037 U CN204310037 U CN 204310037U CN 201420778260 U CN201420778260 U CN 201420778260U CN 204310037 U CN204310037 U CN 204310037U
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- uplock
- valve
- ozzle
- collaborate
- piston rod
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- Withdrawn - After Issue
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Abstract
A kind of uplock coordination valve that the utility model proposes, aims to provide a kind of reliable operation, collaborates scope large, latch hook and backplate lock ring can be avoided to produce the uplock of strange phenomenies such as rubbing.The utility model is achieved by following technical proposals: when hydraulic oil enters in pressurized strut from radial direction perpendicular to the ozzle B that unblanks of start stack shell axle head, steel ball 1 collaborates ozzle A oil inlet gluing, sealing with the axis collaborated on an end face under the effect of hydraulic coupling, collaborating ozzle A is leading in backplate pressurized strut, hydraulic oil can only promote uplock piston (6) and move right, when move distance reach collaborate stroke time, nut (8) contacts with baffle ring (7) and drives valve (2) body of rod to move right, valve (2) is driven to drive steel ball (1) motion, depart from and collaborate ozzle A oil inlet, now, collaborate ozzle A and unblank ozzle B intercommunication, complete and collaborate the coordination order that valve function and uplock system realize first unblanking to put afterwards backplate.
Description
Technical field
The utility model is the uplock about being applied in Landing Gear System, especially the coordination valve of uplock.
Background technology
Mechanical lock is equipped with at the inner two ends of retractable actuating cylinder, and alighting gear is pinned by mechanical lock in retractable position; Whether upper and lower lock micro-switch detects alighting gear and is really locked.The fault of Landing Gear System directly affects flight safety.The structure of alighting gear is comparatively complicated, and particularly extension and retraction system relates to the several systems on alighting gear, hydraulic pressure and the machine such as electric.When alighting gear normally puts down, hydraulic oil is entered by pressurized strut B mouth, promotes piston rod and to stretch out and through the oil return of A mouth.When emergency extension alighting gear, hydraulic oil enters pressurized strut by C mouth.When packing up alighting gear, hydraulic oil is entered by pressurized strut A mouth, promote piston rod shrink and through the oil return of B mouth.Piston rod movement is to the end of stroke, and the mechanical lock at strut pressurized strut two ends is locked by piston rod.Each retractable actuating cylinder has two micro-switchs: landing gear uplock micro-switch and alighting gear down lock micro-switch, they are controlled by retractable actuating cylinder piston rod.Micro-switch indicate alighting gear put down locked; Alighting gear is in folding and unfolding campaign; Locked three positions packed up by alighting gear.Time gear down, landing gear uplock is unblanked.Putting down the terminal of stroke, retractable actuating cylinder is locked by mechanical lock, and alighting gear down lock is locked, and alighting gear down lock micro-switch is changed.In real work, pressurized strut drives uplock to unblank, and retractable actuating cylinder drives jack to do folding and unfolding campaign simultaneously, is constraint of rolling between lock ring and latch hook, and the motion of latch hook is collided by lock ring to cause.After lock ring touches latch hook, latch hook is followed lock ring and is synchronized with the movement, and drives whole latch mechanism to link simultaneously.Lock ring drives uplock to lock after colliding latch hook, on the contrary the process of putting down.Uplock is fluid control power element, and its Main Function is: one is that backplate is locked in retracted position; Two is that when guaranteeing flight, backplate can not produce unacceptable distortion because of aerodynamic loading, and three is the coordination sequence requirement of first unblanking to put afterwards backplate.The radical function of the coordination valve in uplock is after ensureing that hydraulic oil makes uplock first unblank, and hydraulic oil leads to backplate again and controls pressurized strut, makes not produce the strange phenomenies such as friction between the lock ring on the latch hook of uplock and backplate.
The valve 2 that traditional uplock coordination valve mainly comprises the sealing steel ball 1 shown in Fig. 4 and is connected with steel ball, valve baffle ring 3, the block 4 be connected with valve and retracing spring 5.Limit by product structure because traditional uplock collaborates valve, when collaborating valve function and completing, namely during the intercommunication of A, B ozzle, the angle that latch hook is opened is very limited, makes it easily to occur with lock ring strange phenomenies such as rubbing.Due to traditional uplock, to collaborate valve shorter owing to collaborating stroke, during the intercommunication of A, B ozzle, the very limited uplock open angle of angle that latch hook is opened is 5 degree 50 points, lock ring on latch hook and backplate very easily occurs to rub and produces strange phenomena, therefore, traditional uplock collaborates valve can not meet operating needs.
Utility model content
It is simple that task of the present utility model is to provide a kind of structure, reliable operation, the uplock that the scope that collaborates is large, when opening larger angle to make uplock, just makes backplate produce action, avoid latch hook and backplate lock ring to produce the uplock of strange phenomenies such as rubbing.
The utility model solves the technical scheme that its technical matters adopts: a kind of pressurized strut uplock, comprise: collaborate cylinder with lock ring and latch hook, coaxially be assemblied in and collaborate in cylinder, the steel ball 1 collaborating ozzle A is also sealed for being connected in piston rod interlock valve 2, the baffle ring 7 be connected with piston rod and the nut 8 be connected with valve, valve pull back spring 3 and spring perch 4, for the back-up ring 5 of restraining spring seat, it is characterized in that: piston rod interlock valve 2 sequentially passes through the built-in spring perch 4 of uplock piston 6 cavity, pull back spring 3 and baffle ring 7 axially extend to the length direction of piston rod hollow channel, composition lock coordination valve, when hydraulic oil from radial Vertical Coordination move cylinder cylinder end unblank ozzle B enter association pressurized strut hydraulic cavities time, steel ball 1 collaborates ozzle A oil inlet gluing, sealing with the axis collaborated on an end face under the effect of hydraulic coupling, collaborating ozzle A is collaborating in cylinder towards backplate, hydraulic oil can only promote uplock piston 6 and move right, when move distance reach collaborate stroke time, the nut 8 connected firmly on piston rod free end contacts with the baffle ring 7 be positioned at bottom plunger shaft and drives valve 2 body of rod to move right, valve 2 is driven to drive steel ball 1 to move, depart from and collaborate ozzle A oil inlet, now, collaborate ozzle A and unblank ozzle B intercommunication, complete and collaborate the coordination order that valve function and uplock system realize first unblanking to put afterwards backplate.
Further, any one value collaborated in piston movement stroke that stroke can be uplock of coordination valve.
The utility model has following beneficial effect compared to prior art:
Structure is simple, reliable operation.The utility model, when Total Product structure is constant, by the stroke of valve in adjustment pressurized strut piston rod, thus realizes making the change collaborating stroke, inner in pressurized strut, adopt the form of back-up ring, make spring perch as shown in Figure 1 spacing, spring pressurized, makes to collaborate valve and has return function.Because the spendable length of uplock piston rod cavity is larger, therefore, the stroke that uplock collaborates valve can design arbitrarily in the stroke of uplock, the angle that so corresponding uplock latch hook is opened can regulate arbitrarily from zero to maximum angle of unblanking, thus can latch hook and backplate lock ring be avoided to produce the generation of strange phenomenies such as rubbing by actv..
Any one value collaborated in piston movement stroke that stroke can be uplock of coordination valve of the present utility model, collaborates scope large.Collaborate stroke to decide primarily of the length of the valve in piston rod, and the length of piston rod is determined by the stroke of uplock, the utility model will collaborate valve and extend into piston rod hollow channel, and valve length can be consistent with the length of piston rod, collaborate stroke to design arbitrarily in uplock piston movement stroke, do not affect by other factors.Therefore, its design collaborating stroke can not by the restriction of product structure, and design arbitrarily in the stroke of pressurized strut, traditional uplock coordination valve is unappeasable.
Accompanying drawing explanation
Fig. 1 is the utility model pressurized strut uplock initial position schematic diagram.
Fig. 2 is that the valve motion that collaborates of Fig. 1 puts in place schematic diagram.
Fig. 3 is that Fig. 1 collaborates valve and opens schematic diagram.
In figure: A collaborates ozzle, B unblanks ozzle, and C locks ozzle, 1 steel ball, 2 valve, 3 pull back springs, 4 spring perches, 5 back-up rings, 6 uplock pistons, 7 baffle rings, 8 nuts, 9 piston rods, 10 collaborate cylinder, 11 piston rod hollow channels, 12 plunger shaft, 13 linings, 14 sealing arrangements, 15 joints, 16 pull bars, 17 rocking arms, 18 rotating shafts, 19 stop pull bars, 20 latch hooks, 21 lock rings.
Detailed description of the invention
Further illustrate the utility model below in conjunction with drawings and Examples, but therefore the utility model is not limited among described scope of embodiments.All these designs should be considered as content disclosed in this technology and protection domain of the present utility model.
Consult Fig. 1-Fig. 3.In embodiment described below, a kind of pressurized strut uplock, comprise: collaborate cylinder with lock ring and latch hook, coaxially be assemblied in and collaborate in cylinder, the steel ball 1 collaborating ozzle A is also sealed for being connected in piston rod interlock valve 2, the baffle ring 7 be connected with piston rod and the nut 8 be connected with valve, valve pull back spring 3 and spring perch 4, for the back-up ring 5 of restraining spring seat.Uplock is primarily of collaborating cylinder, rocking arm, latch hook, rotating shaft, piston rod, lining, pull bar and collaborating the parts compositions such as valve assembly.Uplock belongs to initiatively lock, and piston rod is regained under action of hydraulic force, and piston rod is regained band moveable lock hook and rotated, and latch hook hooks lock ring, and piston rod is regained completely, and dead point is crossed in parallel motion, until complete locking, so far the process of locking completes.After the process of locking completes, because four-bar linkage has dead point characteristic, latch hook can not rotate, and therefore backplate is locked upper lock position.To unblank process: piston rod stretches out under action of hydraulic force, piston rod stretches out band moveable lock hook and rotates, and piston rod stretches out completely, and dead point is crossed in parallel motion, and lock ring and latch hook depart from, and so far the process of unblanking completes.Piston rod interlock valve 2 sequentially passes through the built-in spring perch 4 of uplock piston 6 cavity, pull back spring 3 and baffle ring 7 axially extend to the length direction of piston rod hollow channel, composition lock coordination valve, when hydraulic oil from radial Vertical Coordination move cylinder cylinder end unblank ozzle B enter association pressurized strut hydraulic cavities time, steel ball 1 collaborates ozzle A oil inlet gluing, sealing with the axis collaborated on an end face under the effect of hydraulic coupling, collaborating ozzle A is collaborating in cylinder towards backplate, hydraulic oil can only promote uplock piston 6 and move right, when move distance reach collaborate stroke time, the nut 8 connected firmly on piston rod free end contacts with the baffle ring 7 be positioned at bottom plunger shaft and drives valve 2 body of rod to move right, valve 2 is driven to drive steel ball 1 to move, depart from and collaborate ozzle A oil inlet, now, collaborate ozzle A and unblank ozzle B intercommunication, complete and collaborate the coordination order that valve function and uplock system realize first unblanking to put afterwards backplate.After fluid enters pressurized strut inner chamber by the ozzle B that unblanks, first make uplock piston movement one end distance, make uplock open certain angle in advance, then fluid leads to towards collaborating ozzle A the pressurized strut controlling backplate again.
Collaborate stroke to decide primarily of the length of the valve in piston rod, the length of piston rod is determined by the stroke of uplock, and the length of the valve in piston rod can be consistent with the length of piston rod.Any one value collaborated in piston movement stroke that stroke can be uplock of coordination valve.
Claims (4)
1. a uplock coordination valve, comprise: be coaxially assemblied in pressurized strut, for sealing and being connected in the steel ball (1) in piston rod interlock valve (2), valve pull back spring (3) and spring perch (4), for the back-up ring (5) of restraining spring seat, the baffle ring (7) be connected with piston rod and the nut (8) be connected with valve, it is characterized in that: when hydraulic oil enters in pressurized strut from radial direction perpendicular to the ozzle B that unblanks of start stack shell axle head, steel ball (1) collaborates ozzle A oil inlet gluing, sealing with the axis collaborated on an end face under the effect of hydraulic coupling, collaborating ozzle A is leading in backplate pressurized strut, hydraulic oil can only promote uplock piston (6) and move right, when move distance reach collaborate stroke time, nut (8) contacts with baffle ring (7) and drives valve (2) body of rod to move right, valve (2) is driven to drive steel ball (1) motion, depart from and collaborate ozzle A oil inlet, now, collaborate ozzle A and unblank ozzle B intercommunication, complete and collaborate the coordination order that valve function and uplock system realize first unblanking to put afterwards backplate.
2. uplock coordination valve as claimed in claim 1, it is characterized in that, after fluid enters pressurized strut inner chamber by the ozzle B that unblanks, first uplock piston movement one segment distance is made, make uplock open certain angle in advance, then fluid leads to towards collaborating ozzle A the pressurized strut controlling backplate again.
3. uplock coordination valve as claimed in claim 1, it is characterized in that, collaborate stroke to decide primarily of the length of the valve in piston rod, the length of piston rod is determined by the stroke of uplock, and in piston rod, the length of valve (2) is consistent with the length of piston rod.
4. uplock coordination valve as claimed in claim 1, is characterized in that, the stroke that collaborates of coordination valve is any one value in uplock piston movement stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778260.7U CN204310037U (en) | 2014-12-10 | 2014-12-10 | Uplock coordination valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778260.7U CN204310037U (en) | 2014-12-10 | 2014-12-10 | Uplock coordination valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204310037U true CN204310037U (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420778260.7U Withdrawn - After Issue CN204310037U (en) | 2014-12-10 | 2014-12-10 | Uplock coordination valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204310037U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477379B (en) * | 2014-12-10 | 2016-08-31 | 四川凌峰航空液压机械有限公司 | Retractable actuating cylinder uplock coordination valve |
| CN106428518A (en) * | 2016-11-29 | 2017-02-22 | 四川凌峰航空液压机械有限公司 | Upper lock turnover device of cabin door |
| CN107719647A (en) * | 2017-09-22 | 2018-02-23 | 北京航空航天大学 | High reliability unmanned plane undercarriage control system |
| CN111169624A (en) * | 2020-03-11 | 2020-05-19 | 中国民用航空飞行学院 | Undercarriage uplock structure for aviation emergency |
| CN112478131A (en) * | 2020-12-08 | 2021-03-12 | 中航飞机起落架有限责任公司 | Mechanical lock mechanism of integrated linkage coordination valve |
| CN112572757A (en) * | 2020-12-04 | 2021-03-30 | 中国航空工业集团公司成都飞机设计研究所 | Electrically driven active cabin door upper lock |
| CN111169624B (en) * | 2020-03-11 | 2024-05-28 | 中国民用航空飞行学院 | Landing gear upper lock structure for aviation emergency |
-
2014
- 2014-12-10 CN CN201420778260.7U patent/CN204310037U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477379B (en) * | 2014-12-10 | 2016-08-31 | 四川凌峰航空液压机械有限公司 | Retractable actuating cylinder uplock coordination valve |
| CN106428518A (en) * | 2016-11-29 | 2017-02-22 | 四川凌峰航空液压机械有限公司 | Upper lock turnover device of cabin door |
| CN106428518B (en) * | 2016-11-29 | 2018-08-07 | 四川凌峰航空液压机械有限公司 | Hatch door uplock turnover device |
| CN107719647A (en) * | 2017-09-22 | 2018-02-23 | 北京航空航天大学 | High reliability unmanned plane undercarriage control system |
| CN111169624A (en) * | 2020-03-11 | 2020-05-19 | 中国民用航空飞行学院 | Undercarriage uplock structure for aviation emergency |
| CN111169624B (en) * | 2020-03-11 | 2024-05-28 | 中国民用航空飞行学院 | Landing gear upper lock structure for aviation emergency |
| CN112572757A (en) * | 2020-12-04 | 2021-03-30 | 中国航空工业集团公司成都飞机设计研究所 | Electrically driven active cabin door upper lock |
| CN112478131A (en) * | 2020-12-08 | 2021-03-12 | 中航飞机起落架有限责任公司 | Mechanical lock mechanism of integrated linkage coordination valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150506 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |