CN102434521A - Actuator cylinder capable of being as locking pin - Google Patents
Actuator cylinder capable of being as locking pin Download PDFInfo
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- CN102434521A CN102434521A CN2011103421051A CN201110342105A CN102434521A CN 102434521 A CN102434521 A CN 102434521A CN 2011103421051 A CN2011103421051 A CN 2011103421051A CN 201110342105 A CN201110342105 A CN 201110342105A CN 102434521 A CN102434521 A CN 102434521A
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- piston rod
- piston
- pressurized strut
- lock pin
- urceolus
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Abstract
The invention discloses an actuator cylinder capable of being as a locking pin, which aims to solve the problems that in the locking pin for driving a latch lock mechanism of the existing actuator cylinder, the occupied space is large, the weight is larger, the connection parts are more, and the like, so that the space and the weight are saved for the design of the locking mechanism of an airplane. The actuator cylinder mainly comprises an outer cylinder, a support, a piston rod, a nut, a guide sleeve, a piston, a bolt, a sliding sleeve, a sealing ring, a dust ring and other parts. In the invention, as the support is added for fixing the actuator cylinder, the locking pin as a functional structure member and the driving element actuator are integrated; as the locking pin is used as a part of the actuator cylinder, the structure is simplified, the space is saved, and the weight is lightened; as an oil inlet and an oil outlet are arranged at one end of the piston rod, the arrangement of the pipeline is facilitated. The invention can be applied in aviation bolt lock mechanisms or other bolt lock mechanisms with strict limits to the overall dimension and weight of a product.
Description
Technical field
The present invention relates to hydraulic air attachment technique field, relating in particular to a kind of overall sizes and weight of can be applicable to has strict restriction, lock pin need bear the latch latch mechanism of big load, like upper and lower latch latch mechanisms such as aircraft undercarriage, hatch doors.
Background technique
Divide from function, the traditional driving pressurized strut can be divided into following two kinds: first kind of pressurized strut is a driving element, is merely mechanism or load provides steering maneuver, function singleness.After mechanism or load put in place, pressurized strut then quit work, and pressurized strut this moment no longer includes contribution to the work of mechanism or load, becomes unnecessary parts.Second kind of pressurized strut be both ends or one end built-in mechanical lock, such pressurized strut is not only a driving element, after pressurized strut is locked, becomes stiff member, can be used as strut or pull bar and uses.
The common feature of above-mentioned two kinds of pressurized struts is as shown in Figure 1 to be: when the lock pin 26 that is used to drive the latch latch mechanism when these two kinds of pressurized struts is unblanked and locked; The longest overall sizes of latch latch mechanism should be the full extended length that lock pin length adds pressurized strut; Therefore such latch latch mechanism is big, the Heavy Weight of overall sizes not only; Structure is also complicated; This to loss of weight of aircraft with improve space availability ratio and certainly lead to adverse effect, a series of problems such as be connected, fix, be locking and lubricated but also can bring between lock pin and the pressurized strut.
Summary of the invention
In order to overcome big, the deficiency such as weight is big, connection part is many that takes up room when existing pressurized strut is used to drive the lock pin of latch latch mechanism; For space and weight have been saved in the design of aircraft latch mechanism; The present invention aims to provide a kind of pressurized strut of using as lock pin; The urceolus of this pressurized strut can directly be made the lock pin usefulness of latch latch mechanism, and through lock pin and pressurized strut are integrated, promptly the urceolus with pressurized strut serves as lock pin; And carry and do not influence the pressurized strut sealability during wearing and tearing outward greatly when lock pin bears, thus the pressurized strut of this pattern to can be used for load big and overall sizes and weight had the strict latch latch mechanism that limits.
To achieve these goals, the technological scheme that the present invention adopted is: the said pressurized strut of using as lock pin comprises support, and its structural feature is; Be fixed with piston rod on the said support; Said upper cover of piston rod is equipped with guide sleeve, and an end of this piston rod is fixed with piston, and said piston places in the urceolus; This urceolus one end sealing, the other end is fixedly connected with said guide sleeve; Form rodless cavity between the closed end of said piston and urceolus, have a central passage in the said piston rod, this central passage is connected with said rodless cavity; Form rod chamber between the outer wall of said piston rod, outer tube inner wall, guide sleeve and the piston, have an eccentric channel in the said piston rod, this eccentric channel is connected with said rod chamber.
With the novel pressurized strut that lock pin in hydraulic actuator and the latch latch mechanism integrates, the piston rod of pressurized strut is fixed, and the pressurized strut urceolus does to stretch out and regain action as lock pin.
Input hydraulic pressure is oily in rod chamber or rodless cavity for ease, and the eccentric channel of said piston rod links to each other with a free flow coupling; The central passage of said piston rod links to each other with an ell joint, and said free flow coupling and union elbow are positioned at the same end of pressurized strut, helps the layout of pipeline.
Said outer drum outer wall is provided with sliding sleeve, and said support is provided with the endoporus that matches with said sliding sleeve.
In order to prevent that pressurized strut piston and guide sleeve in the process of locking from bumping when latch mechanism is locked, said outer drum outer wall is provided with the stop platform.
As preferred version, said piston is through being bolted on the piston rod.
In order to guarantee to keep sealing between each parts; Prevent hydraulic fluid leak, be provided with seal ring between said piston rod and the guide sleeve, be provided with seal ring between said guide sleeve and the urceolus; Be provided with seal ring between said piston and the urceolus, be provided with seal ring between said piston and the piston rod.Be provided with seal ring between said free flow coupling and the piston rod, be provided with seal ring between said union elbow and the piston rod.
In order to prevent to get into dust in the rod chamber, be provided with dust ring between said piston rod and the guide sleeve.
By said structure, the present invention mainly is made up of parts such as urceolus, support, end cap, piston rod, nut, guide sleeve, piston, bolt, sliding sleeve, seal ring, dust rings.Its working principle is: as shown in Figure 2; Support 8 is fixing; When to union elbow 5 voltage supply, hydraulic oil enters into the rodless cavity A of pressurized strut through central passage 28 oilholes of piston rod 13 and bolt 16, because piston rod 13 is fixed on the support 8; Urceolus 12 does to stretch out motion under the effect of pressure, accomplishes the latch mechanism action of locking.When to free flow coupling 1 voltage supply, hydraulic oil enters into the rod chamber B of pressurized strut through the eccentric channel 27 of piston rod 13, and urceolus 12 is made recovery movement under the effect of pressure, accomplishes the latch mechanism unlocking action.
Compared with prior art; The invention has the beneficial effects as follows: the present invention is a kind of multifunctional integrated hydraulic actuator that can be used as lock pin; Lock pin and pressurized strut are integrated, and promptly the urceolus with pressurized strut serves as lock pin, when lock pin bears than carry outside big and weares and teares, does not influence the pressurized strut sealability; The import and export of oil circuit all are arranged on an end of piston rod, help the layout of pipeline; The present invention has simplified mechanism, has alleviated weight, has saved the space, has improved component utilization ratio and system reliability, and can be used for load has the strict latch latch mechanism that limits greatly and to overall sizes and weight.
Below in conjunction with accompanying drawing and embodiment the present invention is done further elaboration.
Description of drawings
Fig. 1 is the structure diagram of existing pressurized strut when being used for the latch latch mechanism.
Fig. 2 is the structural principle sketch of an embodiment of the present invention.
Fig. 3 is the outline drawing that the present invention stretches out state.
Fig. 4 is the outline drawing of piston rod among the present invention.
Fig. 5 is the outline drawing of piston among the present invention.
Among the figure:
The 1-free flow coupling, 2,3,11,14,18,19-seal ring, 4-gland nut; The 5-union elbow, 6-end cap, 7-packing ring, 8-support, 9-nut, 10-sliding sleeve, 12-urceolus, 13-piston rod; The 15-piston, 16-bolt, 17,22-Cock screw, 20-dust ring, 21-guide sleeve, 23-stop platform, the existing mechanism of 24-lock pin; The 25-connecting bolt, the piston rod of the existing pressurized strut of 26-, 27-eccentric channel, 28-central passage, 29-boss, 30 keyways, A-rodless cavity, B-rod chamber.
Embodiment
Shown in Fig. 2 and 3; Compare with traditional pressurized strut; The present invention all designs the end at piston rod 13 for lock pin and pressurized strut are integrated with the oil inlet and outlet of traditional pressurized strut design on urceolus, and urceolus 12 is provided with stop platform 23; Be used for the spacing of urceolus 12 relative latch mechanisms, prevent that piston 15 and guide sleeve 21 from bumping when latch mechanism is locked.Piston rod 13 set inside two oilhole passages, i.e. eccentric channel 27 and central passage 28, wherein eccentric channel 27 is led to the rod chamber B of pressurized strut, central passage 28 is led to the rodless cavity A of pressurized strut.Nut 9 is fixed on piston rod 13 on the support 8 with end cap 6; Support 8 is screwed on the housing (not shown) of latch mechanism through the flange of its end face; Sliding sleeve 10 is fixed on the urceolus outside, is used for cooperating with the endoporus of support 8, plays wear-resisting and leading role; Guide sleeve 21 is enclosed within on the piston rod 13 and through screw thread and urceolus 12 and is connected; Piston 15 usefulness bolts 16 are fixed on the end of piston rod 13, and hole end surface is provided with keyway 30 in the piston 15, is used for cooperating with the boss 29 of piston rod 13 end faces, prevents the rotation between piston 15 and the piston rod 13; Seal ring 11,19 is used for the sealing between pressurized strut inner chamber and the external environment condition; Seal ring 14 and 18 is used for the sealing between pressurized strut rod chamber B and the rodless cavity A; It is locking that Cock screw 17 and 22 is used for respectively being threaded, and guarantees reliability.
The content that the foregoing description is illustrated is to be understood that to these embodiments and only is used to be illustrated more clearly in the present invention; And be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Claims (9)
1. the pressurized strut that can use as lock pin comprises support (8), it is characterized in that; Be fixed with piston rod (13) on the said support (8); Be set with guide sleeve (21) on the said piston rod (13), an end of this piston rod (13) is fixed with piston (15), and said piston (15) places in the urceolus (12); This urceolus (12) one ends sealing, the other end is fixedly connected with said guide sleeve (21);
Form rodless cavity (A) between the closed end of said piston (15) and urceolus (12), have a central passage (28) in the said piston rod (13), this central passage (28) is connected with said rodless cavity (A);
Form rod chamber (B) between the outer wall of said piston rod (13), urceolus (12) inwall, guide sleeve (21) and the piston (15), have an eccentric channel (27) in the said piston rod (13), this eccentric channel (27) is connected with said rod chamber (B).
2. the pressurized strut of using as lock pin according to claim 1 is characterized in that, the eccentric channel (27) of said piston rod (13) links to each other with a free flow coupling (1); The central passage (28) of said piston rod (13) links to each other with an ell joint (5).
3. the pressurized strut of using as lock pin according to claim 1 is characterized in that, said piston (15) is fixed on the piston rod (13) through bolt (16).
4. the pressurized strut of using as lock pin according to claim 1 is characterized in that, said urceolus (12) outer wall is provided with sliding sleeve (10), and said support (8) is provided with the endoporus that matches with said sliding sleeve (10).
5. the pressurized strut of using as lock pin according to claim 1 is characterized in that, said urceolus (12) outer wall is provided with the stop platform (23) that prevents that piston (15) and guide sleeve (21) from bumping when latch mechanism is locked.
6. according to the described pressurized strut of using as lock pin of one of claim 1～5; It is characterized in that; Be provided with seal ring (19) between said piston rod (13) and the guide sleeve (21); Be provided with seal ring (11) between said guide sleeve (21) and the urceolus (12), be provided with seal ring (14) between said piston (15) and the urceolus (12), be provided with seal ring (18) between said piston (15) and the piston rod (13).
7. the pressurized strut of using as lock pin according to claim 2 is characterized in that, is provided with seal ring (2) between said free flow coupling (1) and the piston rod (13), is provided with seal ring (3) between said union elbow (5) and the piston rod (13).
8. according to the described pressurized strut of using as lock pin of one of claim 1～5, it is characterized in that, be provided with dust ring (20) between said piston rod (13) and the guide sleeve (21).
9. according to the described pressurized strut of using as lock pin of one of claim 1～5, it is characterized in that said piston (15) endoporus wall is provided with keyway (30), the right side of said piston rod (13) is provided with the boss (29) that cooperates with said keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110342105.1A CN102434521B (en) | 2011-11-03 | 2011-11-03 | Actuator cylinder capable of being as locking pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110342105.1A CN102434521B (en) | 2011-11-03 | 2011-11-03 | Actuator cylinder capable of being as locking pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102434521A true CN102434521A (en) | 2012-05-02 |
| CN102434521B CN102434521B (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110342105.1A Active CN102434521B (en) | 2011-11-03 | 2011-11-03 | Actuator cylinder capable of being as locking pin |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758809A (en) * | 2012-07-19 | 2012-10-31 | 江苏速升自动化装备股份有限公司 | Air cylinder with oriented function |
| CN103307277A (en) * | 2013-06-14 | 2013-09-18 | 太原重工股份有限公司 | Hydraulic cylinder for tension straightener |
| CN103910059A (en) * | 2014-03-13 | 2014-07-09 | 中航飞机起落架有限责任公司 | An actuator cylinder capable of bearing |
| CN104443365A (en) * | 2014-11-27 | 2015-03-25 | 江西洪都航空工业集团有限责任公司 | Novel anti-loosening structure of actuating cylinder |
| CN106516155A (en) * | 2016-11-01 | 2017-03-22 | 广州飞机维修工程有限公司 | Airbus A320 series type rudder position locking method and rudder actuating cylinder lock |
| CN107120336A (en) * | 2017-06-22 | 2017-09-01 | 山东达睿智能设备股份有限公司 | A kind of servo-hydraulic cylinder assembly |
| CN111520519A (en) * | 2019-02-04 | 2020-08-11 | 日本电产东测有限公司 | Solenoid device |
| CN114961440A (en) * | 2022-03-25 | 2022-08-30 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Actuator capable of automatically locking and unlocking |
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| JPH04128572A (en) * | 1990-09-20 | 1992-04-30 | Yamato Boring Kk | Double differential reciprocating pump |
| CN201065867Y (en) * | 2007-06-25 | 2008-05-28 | 南通锻压设备有限公司 | Hydraulic lift-up device for cylinder movement |
| CN201149071Y (en) * | 2007-08-25 | 2008-11-12 | 陕西燎原航空机械制造公司 | Locking apparatus of dynamoelectric deploying and retracting actuating cylinder |
| CN201363350Y (en) * | 2009-02-09 | 2009-12-16 | 中航飞机起落架有限责任公司 | Threaded connection locking structure with lockable arbitrary angles |
| CN101705953A (en) * | 2009-11-27 | 2010-05-12 | 厦门厦工机械股份有限公司 | Multifunctional hydraulic cylinder |
| CN201521505U (en) * | 2009-10-27 | 2010-07-07 | 鞍钢重型机械有限责任公司 | Novel hydraulic cylinder with sealing structure |
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2011
- 2011-11-03 CN CN201110342105.1A patent/CN102434521B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04128572A (en) * | 1990-09-20 | 1992-04-30 | Yamato Boring Kk | Double differential reciprocating pump |
| CN201065867Y (en) * | 2007-06-25 | 2008-05-28 | 南通锻压设备有限公司 | Hydraulic lift-up device for cylinder movement |
| CN201149071Y (en) * | 2007-08-25 | 2008-11-12 | 陕西燎原航空机械制造公司 | Locking apparatus of dynamoelectric deploying and retracting actuating cylinder |
| CN201363350Y (en) * | 2009-02-09 | 2009-12-16 | 中航飞机起落架有限责任公司 | Threaded connection locking structure with lockable arbitrary angles |
| CN201521505U (en) * | 2009-10-27 | 2010-07-07 | 鞍钢重型机械有限责任公司 | Novel hydraulic cylinder with sealing structure |
| CN101705953A (en) * | 2009-11-27 | 2010-05-12 | 厦门厦工机械股份有限公司 | Multifunctional hydraulic cylinder |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758809A (en) * | 2012-07-19 | 2012-10-31 | 江苏速升自动化装备股份有限公司 | Air cylinder with oriented function |
| CN103307277A (en) * | 2013-06-14 | 2013-09-18 | 太原重工股份有限公司 | Hydraulic cylinder for tension straightener |
| CN103910059A (en) * | 2014-03-13 | 2014-07-09 | 中航飞机起落架有限责任公司 | An actuator cylinder capable of bearing |
| CN103910059B (en) * | 2014-03-13 | 2015-10-14 | 中航飞机起落架有限责任公司 | One can carry pressurized strut |
| CN104443365A (en) * | 2014-11-27 | 2015-03-25 | 江西洪都航空工业集团有限责任公司 | Novel anti-loosening structure of actuating cylinder |
| CN106516155A (en) * | 2016-11-01 | 2017-03-22 | 广州飞机维修工程有限公司 | Airbus A320 series type rudder position locking method and rudder actuating cylinder lock |
| CN107120336A (en) * | 2017-06-22 | 2017-09-01 | 山东达睿智能设备股份有限公司 | A kind of servo-hydraulic cylinder assembly |
| CN111520519A (en) * | 2019-02-04 | 2020-08-11 | 日本电产东测有限公司 | Solenoid device |
| CN114961440A (en) * | 2022-03-25 | 2022-08-30 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Actuator capable of automatically locking and unlocking |
| CN114961440B (en) * | 2022-03-25 | 2023-11-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Automatic locking-unlocking actuator |
Also Published As
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|---|---|
| CN102434521B (en) | 2014-12-03 |
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