CN103029829A - Hydraulic return locking device for dual-redundancy steering engine - Google Patents
Hydraulic return locking device for dual-redundancy steering engine Download PDFInfo
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- CN103029829A CN103029829A CN2012105841733A CN201210584173A CN103029829A CN 103029829 A CN103029829 A CN 103029829A CN 2012105841733 A CN2012105841733 A CN 2012105841733A CN 201210584173 A CN201210584173 A CN 201210584173A CN 103029829 A CN103029829 A CN 103029829A
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Abstract
The invention relates to a hydraulic return locking device for a dual-redundancy steering engine, which comprises a housing (1), a first piston (2), a second piston (3) and a pull rod (4) connected with the two pistons, wherein the first piston (2) and the second piston (3) are mounted in the housing (1); the second piston (3) is fixedly connected with the pull rod (4); one end of the first piston (2) is movably connected with the pull rod (4); the other end of the first piston (2) is connected with a return rocker arm (9); and limiting bosses (5,6,7 and 8) limiting the moving positions of the pistons are arranged on an inner wall of the housing (1). With the adoption of the hydraulic return locking device, when two systems of the dual-hydraulic system electrohydraulic compounding steering engine have electrical failures, mechanical negative feedback is formed between a steering surface and a master control valve, an automatic return function is achieved under the effect of hydraulic pressure, and the flight safety is ensured.
Description
Technical field
The invention belongs to Hydraulic Field, relate to a kind of dual-redundancy steering engine hydraulic pressure and return middle latching device.
Background technology
It is widely used safing functional component on the electric-hydraulic combined steering wheel that hydraulic pressure returns middle device, and its effect is when steering wheel generation electrical accident, makes the output rocking arm of steering wheel automatically get back to meta (perch), thereby guarantees flight safety.
The electric-hydraulic combined steering wheel of two remainings, general fault return middle mode has spring to return during neutralizer pushes back, but these two kinds return in the control accuracys of modes not high, can not satisfy the application scenario of control accuracy being had relatively high expectations such as yaw rudder etc.
Summary of the invention
Purpose of the present invention: return the not high situation of middle mode control accuracy for existing two electric-hydraulic combined steering wheel faults of remaining, the hydraulic pressure that the invention provides in a kind of can accurately the returning returns middle latching device.When two systems of the electric-hydraulic combined steering wheel of two remainings all produce electrical accident, latching device will feed back rocking arm locking in this time, and rudder face is linked to each other with main control valve by feeding back rocking arm, form mechanical inverse feedback, make aircraft rudder surface automatically get back to meta.
The technical scheme that the present invention takes:
A kind of dual-redundancy steering engine hydraulic pressure returns middle latching device, comprises housing (1), first piston (2), the second piston (3) and the pull bar (4) that two-piston is connected; First piston (2), the second piston (3) is installed in the housing (1), the second piston (3) is captiveed joint with pull bar (4), first piston (2) one ends and pull bar (4) are flexibly connected, the other end links to each other with time middle rocking arm (9), housing (1) inwall is provided with the positive stop lug boss (5 of limited piston movement position, 6,7,8), piston and positive stop lug boss are divided into 5 cavitys to housing (1) inner chamber, form the left start of first piston chamber between the first boss (5) and the first piston (2), form the right start of first piston chamber between first piston (2) and the second boss (6), form piston start chamber between the second boss (6) and the 3rd boss (7), form the left start of the second piston chamber between the 3rd boss (7) and the second piston (3), form the right start of the second piston chamber between the second piston (3) and the 4th boss (8); Piston start chamber links to each other with a hydraulic efficiency pressure system of steering wheel, an oil circuit of another hydraulic efficiency pressure system of steering wheel links to each other with the right start of first piston chamber, the left start of the second piston chamber respectively, and another oil circuit links to each other with the left start of first piston chamber, the right start of the second piston chamber respectively; Piston is non-homalographic piston, and its area relationship is:
S
5＞S
4, S
5＞S
3, (S
3+ S
4)＞S
5S
1＞S
2, S
1＞S
3, (S
2+ S
3)＞S
1, wherein,
S
1The right start of the-the second piston chamber effective active area,
S
2The left start of the second piston chamber effective active area,
S
3-piston start chamber effective active area,
S
4The right start of-first piston chamber effective active area,
S
5The left start of-first piston chamber effective active area.
After piston is subject to action of hydraulic force, the object that is locked can be clamped or unclamps.Behind hydraulic work system, arbitrary system oil-feed of electric-hydraulic combined steering wheel is connected, and then returns middle latching device, and latching device is in servo-actuated state in returning this moment; When the oil-feed of two systems was all disconnected, namely simultaneously during electrical accident, latching device was locked in returning in two systems, and after locking, the feedback rocking arm is locked, and aircraft rudder surface and main control valve form mechanical inverse feedback.
Beneficial effect of the present invention: the present invention returns that middle latching device has been realized the electric-hydraulic combined steering wheel of double hydraulic system in the situation that electrical accident all occurs in two systems, make rudder face and main control valve form mechanical inverse feedback, under action of hydraulic force, realize function in the auto back, guarantee flight safety.
Description of drawings
Fig. 1: dual-redundancy steering engine hydraulic pressure of the present invention returns the middle latching device schematic diagram of unblanking;
Fig. 2: dual-redundancy steering engine hydraulic pressure of the present invention returns middle latching device locking schematic diagram;
1: housing, 2: first piston, 3: the second pistons, 4: pull bar, 5: the first boss, 6: the second boss, 7: the three boss, 8: the four boss, 9: rocking arm in returning.
The specific embodiment
Below in conjunction with Figure of description the present invention is described in further detail.
A kind of dual-redundancy steering engine hydraulic pressure returns middle latching device, comprises housing 1 first piston 2, the second piston 3 and the pull bar 4 that two-piston is connected; First piston 2, the second piston 3 is installed in the housing 1, the second piston 3 is captiveed joint with pull bar 4, first piston 2 one ends and pull bar 4 are flexibly connected, the other end is connected with time middle rocking arm 9, housing 1 inwall is provided with the positive stop lug boss of limited piston movement position, piston and positive stop lug boss are divided into 5 cavitys to housing 1 inner chamber, form the left start of first piston chamber between the first boss 5 and the first piston 2, form the right start of first piston chamber between first piston 2 and the second boss 6, form piston start chamber between the second boss 6 and the 3rd boss 7, form the left start of the second piston chamber between the 3rd boss 7 and the second piston 3, form the right start of the second piston chamber between the second piston 3 and the 4th boss 8; Piston start chamber links to each other with a hydraulic efficiency pressure system of steering wheel, an oil circuit of another hydraulic efficiency pressure system of steering wheel links to each other with the right start of first piston chamber, the left start of the second piston chamber respectively, another oil circuit links to each other with the left start of first piston chamber, the right start of the second piston chamber respectively, piston is non-homalographic piston, and its area relationship is:
S
5＞S
4, S
5＞S
3, (S
3+ S
4)＞S
5S
1＞S
2, S
1＞S
3, (S
2+ S
3)＞S
1, wherein,
S
1The right start of the-the second piston chamber effective active area,
S
2The left start of the-the second piston chamber effective active area,
S
3-piston start chamber effective active area,
S
4The right start of-first piston chamber effective active area,
S
5The left start of-first piston chamber effective active area.
2 pistons move to the fixed position under the effect of two system's input pressures of electric-hydraulic combined steering wheel, the object that will be locked clamps or unclamps, and its working process is:
(1) when two system electrical of steering wheel all work, P1=Po, P2=Po, P3=Ps.
The oil liquid pressure of a system of P1-steering wheel,
The oil liquid pressure of another oil circuit of system of P2-steering wheel,
The oil liquid pressure of another another oil circuit of system of P3-steering wheel,
Ps-input pressure,
Po-spill pressure;
At this moment, first piston 2 moves to the second boss 6 left sides under the action of hydraulic force in the left start of first piston chamber, and the second piston 3 is in lower the 3rd boss 7 right sides that move to of the action of hydraulic force in the right start of the second piston chamber.This moment, this device was in unlocking condition, and feedback rocking arm 9 is not clamped, as shown in Figure 1.
(2) when a system electrical fault of steering wheel, P1=Ps, P2=Po, P3=Ps
At this moment, the pressure in the left start of first piston chamber equates with start cavity pressure between first piston 2 and the second piston 3, but because S
5＞S
3, first piston 2 moves to the second boss 6 left sides under the action of hydraulic force in the left start of first piston chamber; The pressure in the right start of the second piston chamber equates with start cavity pressure between first piston 2 and the second piston 3, but because S
1＞S
3, the second piston 3 moves to the 3rd boss 7 right sides under the action of hydraulic force in the right start of the second piston chamber.This moment, this device was in unlocking condition, and feedback rocking arm 9 is not clamped, as shown in Figure 1.
(3) when another system electrical fault of steering wheel, P1=Po, P2=Ps, P3=Ps
At this moment, the pressure in the left start of first piston chamber equates with the pressure in the right start of first piston chamber, but because S
5＞S
4, first piston 2 moves to the second boss 6 left sides under the action of hydraulic force in the left start of first piston chamber; The pressure in the left start of the second piston chamber equates with the pressure in the right start of the second piston chamber, but because S
1＞S
2, the second piston 3 moves to the 3rd boss 7 right sides under the action of hydraulic force in the right start of the second piston chamber.This moment, this device was in unlocking condition, and feedback rocking arm 9 is not clamped, as shown in Figure 1.
(4) when electrical accident all occurs in two systems of steering wheel, P1=Ps, P2=Ps, P3=Ps
At this moment, the start cavity pressure between pressure, first piston 2 and second piston 3 in the right start of pressure, the first piston chamber in the left start of first piston chamber all equates, but because (S
3+ S
4)＞S
5, first piston 2 moves to the first boss 5 right sides under the action of hydraulic force in the right start of first piston chamber; Start cavity pressure between the pressure in the pressure in the left start of the second piston chamber, the right start of the second piston chamber, first piston 2 and the second piston 3 all equates, but because (S
2+ S
3)＞S
1, the second piston 3 moves to the left side of the 4th boss 8 under the action of hydraulic force in the left start of first piston chamber.This moment, this device was in locking state, and feedback rocking arm 9 is clamped, as shown in Figure 2.This moment, aircraft rudder surface formed mechanical inverse feedback by feedback rocking arm 9 and main control valve, can automatically get back to meta under action of hydraulic force, ensured flight safety.
Claims (1)
1. a dual-redundancy steering engine hydraulic pressure returns middle latching device, it is characterized in that: comprise housing (1), first piston (2), the second piston (3) and the pull bar (4) that two-piston is connected; First piston (2), the second piston (3) is installed in the housing (1), the second piston (3) is captiveed joint with pull bar (4), first piston (2) one ends and pull bar (4) are flexibly connected, the other end links to each other with time middle rocking arm (9), housing (1) inwall is provided with the positive stop lug boss (5 of limited piston movement position, 6,7,8), piston and positive stop lug boss are divided into 5 cavitys to housing (1) inner chamber, form the left start of first piston chamber between the first boss (5) and the first piston (2), form the right start of first piston chamber between first piston (2) and the second boss (6), form piston start chamber between the second boss (6) and the 3rd boss (7), form the left start of the second piston chamber between the 3rd boss (7) and the second piston (3), form the right start of the second piston chamber between the second piston (3) and the 4th boss (8); Piston start chamber links to each other with a hydraulic efficiency pressure system of steering wheel, an oil circuit of another hydraulic efficiency pressure system of steering wheel links to each other with the right start of first piston chamber, the left start of the second piston chamber respectively, and another oil circuit links to each other with the left start of first piston chamber, the right start of the second piston chamber respectively; Piston is non-homalographic piston, and its area relationship is:
S
5＞S
4, S
5＞S
3, (S
3+ S
4)＞S
5S
1＞S
2, S
1＞S
3, (S
2+ S
3)＞S
1, wherein,
S
1The right start of the-the second piston chamber effective active area,
S
2The left start of the-the second piston chamber effective active area,
S
3-piston start chamber effective active area,
S
4The right start of-first piston chamber effective active area,
S
5The left start of-first piston chamber effective active area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210584173.3A CN103029829B (en) | 2012-12-27 | 2012-12-27 | Hydraulic return locking device for dual-redundancy steering engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210584173.3A CN103029829B (en) | 2012-12-27 | 2012-12-27 | Hydraulic return locking device for dual-redundancy steering engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103029829A true CN103029829A (en) | 2013-04-10 |
| CN103029829B CN103029829B (en) | 2014-12-24 |
Family
ID=48017335
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210584173.3A Active CN103029829B (en) | 2012-12-27 | 2012-12-27 | Hydraulic return locking device for dual-redundancy steering engine |
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| Country | Link |
|---|---|
| CN (1) | CN103029829B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454787A (en) * | 2014-10-15 | 2015-03-25 | 中国航空工业集团公司沈阳飞机设计研究所 | Steering engine hydraulic state monitoring system and monitoring method |
| CN107524652A (en) * | 2017-07-18 | 2017-12-29 | 中国航空工业集团公司西安飞行自动控制研究所 | Valve design method during trench mode based on gap stream is returned |
| CN111059096A (en) * | 2019-11-28 | 2020-04-24 | 同济大学 | Hydraulic centering locking actuating cylinder structure |
| CN111637104A (en) * | 2020-04-22 | 2020-09-08 | 北京精密机电控制设备研究所 | Coaxial modular design's three-redundancy electro-static pressure servo mechanism |
| CN113401332A (en) * | 2021-06-16 | 2021-09-17 | 北京中航智科技有限公司 | Working mode conversion device and centering device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386243B (en) * | 2014-10-15 | 2017-02-15 | 中国航空工业集团公司沈阳飞机设计研究所 | Failure neutral-position return mechanism for steering engine of airplane |
Citations (5)
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| JPS5614609A (en) * | 1979-07-11 | 1981-02-12 | Fuso Koki Kk | Fluid cylinder capable of maintaining stop position |
| EP0867362A2 (en) * | 1997-03-24 | 1998-09-30 | The Boeing Company | Aircraft servovalve current rate limiter |
| CN2648151Y (en) * | 2003-08-25 | 2004-10-13 | 高文进 | Self-restoring redundant control electrohydraulic actuator |
| CN101451556A (en) * | 2007-11-30 | 2009-06-10 | 中国航空工业第一集团公司沈阳发动机设计研究所 | Hydraulic pressure moving tube with emergency back function |
| DE102010036155A1 (en) * | 2010-09-02 | 2012-03-08 | Emg Automation Gmbh | Electrohydraulic actuator and method of operation thereof |
-
2012
- 2012-12-27 CN CN201210584173.3A patent/CN103029829B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614609A (en) * | 1979-07-11 | 1981-02-12 | Fuso Koki Kk | Fluid cylinder capable of maintaining stop position |
| EP0867362A2 (en) * | 1997-03-24 | 1998-09-30 | The Boeing Company | Aircraft servovalve current rate limiter |
| CN2648151Y (en) * | 2003-08-25 | 2004-10-13 | 高文进 | Self-restoring redundant control electrohydraulic actuator |
| CN101451556A (en) * | 2007-11-30 | 2009-06-10 | 中国航空工业第一集团公司沈阳发动机设计研究所 | Hydraulic pressure moving tube with emergency back function |
| DE102010036155A1 (en) * | 2010-09-02 | 2012-03-08 | Emg Automation Gmbh | Electrohydraulic actuator and method of operation thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454787A (en) * | 2014-10-15 | 2015-03-25 | 中国航空工业集团公司沈阳飞机设计研究所 | Steering engine hydraulic state monitoring system and monitoring method |
| CN107524652A (en) * | 2017-07-18 | 2017-12-29 | 中国航空工业集团公司西安飞行自动控制研究所 | Valve design method during trench mode based on gap stream is returned |
| CN111059096A (en) * | 2019-11-28 | 2020-04-24 | 同济大学 | Hydraulic centering locking actuating cylinder structure |
| CN111637104A (en) * | 2020-04-22 | 2020-09-08 | 北京精密机电控制设备研究所 | Coaxial modular design's three-redundancy electro-static pressure servo mechanism |
| CN111637104B (en) * | 2020-04-22 | 2022-07-05 | 北京精密机电控制设备研究所 | Coaxial modular design's three-redundancy electro-static pressure servo mechanism |
| CN113401332A (en) * | 2021-06-16 | 2021-09-17 | 北京中航智科技有限公司 | Working mode conversion device and centering device |
| CN113401332B (en) * | 2021-06-16 | 2023-03-10 | 北京中航智科技有限公司 | Working mode conversion device and centering device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103029829B (en) | 2014-12-24 |
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