CN105570233A - Hydraulic lock dislocation monitoring structure of actuator - Google Patents
Hydraulic lock dislocation monitoring structure of actuator Download PDFInfo
- Publication number
- CN105570233A CN105570233A CN201510975512.4A CN201510975512A CN105570233A CN 105570233 A CN105570233 A CN 105570233A CN 201510975512 A CN201510975512 A CN 201510975512A CN 105570233 A CN105570233 A CN 105570233A
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- section
- piston
- adjustable lever
- center
- pole
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/87—Detection of failures
Abstract
The invention belongs to the field of hydraulic engineering, and relates to a hydraulic lock dislocation monitoring switch structure. The structure comprises an actuator shell (1), a piston (4) and a center rod (7) and is characterized in that the hydraulic lock dislocation monitoring structure of an actuator further comprises a support (2), a microswitch (3), an adjusting rod (5), a nut (6) and steel balls (8). The hydraulic lock dislocation monitoring switch structure can monitor the locking and unlocking states of a hydraulic lock, and therefore fault monitoring of the hydraulic actuator is achieved.
Description
Technical field
The invention belongs to oilhydraulic engineering field, relate to a kind of hydraulic lock dislocation monitoring switch structure.
Background technique
Hydraulic lock dislocation refers to when hydraulic system failure, and hydraulic lock unlocks, and is originally in two part generation relative movement of relative lock state under pressure.Hydraulic actuator, as the power power unit of actuating system, is widely used in Aeronautics and Astronautics field.For improving the reliability of system, hydraulic actuator many employings redundancy design with malfunction monitoring function.Hydraulic actuator local fault may cause hydraulic lock to unlock, and current hydraulic actuator does not have hydraulic lock dislocation monitoring capability, causes knowing whether hydraulic actuator hydraulic lock dependent failure occurs.
Summary of the invention
The object of the invention is: a kind of hydraulic lock dislocation monitoring switch structure is provided, to monitor locking, the released state of hydraulic lock, thus realizes the malfunction monitoring of hydraulic actuator.
Technological scheme of the present invention is: a kind of actuator hydraulic lock dislocation monitoring of structures, comprise actuator housing 1, piston 4 and center-pole 7, piston 4 is positioned at the piston mounting holes on actuator housing 1, center-pole 7 is positioned at the center hole of piston 4, and piston 4 can move by actuator housing 1 relatively, between piston 4 and center-pole 7, have hydraulic lock, when hydraulic lock locks, piston 4 and center-pole 7 can not relative movement, when hydraulic lock unlocks, and piston 4 and the relative movement of center-pole 7 energy; It is characterized in that: actuator hydraulic lock dislocation monitoring of structures also comprises support 2, sensitive switch 3, adjustable lever 5, nut 6 and steel ball 8; The end face of center-pole 7 has a blind hole, and this blind hole is divided into two sections, left and right, and left section be unthreaded hole section, and right section is internal thread segment, the aperture of the large diameter-ratio unthreaded hole section of this internal thread segment greatly, the unthreaded hole section of this blind hole and the top of center-pole 7 external cylindrical surface through; Adjustable lever 5 is divided into two sections, left and right, left section of adjustable lever is polished rod section, right section of adjustable lever is thread section, right section of adjustable lever is screwed in the internal thread segment of above-mentioned blind hole, keep Spielpassung in the unthreaded hole section that left section of adjustable lever enters above-mentioned blind hole, have a cross section to be the circular groove 5a being inverted isosceles trapezoid at the middle part of left section of adjustable lever, nut 6 is screwed on the outside thread of right section of adjustable lever, is locked by adjustable lever 5; The external cylindrical surface of piston 4 has a radial hole, the position of this radial hole is corresponding with the circular groove 5a in adjustable lever 5 polished rod section and be communicated with, 1 ~ 3 steel balls 8 are had in above-mentioned radial hole, steel ball 8 and above-mentioned radial hole Spielpassung, the quantity of steel ball 8 meets following condition: when the steel ball 8 when below enters circular groove 5a, and the sphere of steel ball 8 is not above higher than the external cylindrical surface of piston 4; Sensitive switch 3 is fixed on actuator housing 1 by support 2, and the reed 3b of sensitive switch 3 covers above-mentioned radial hole; When adjustable lever 5 moves relative to piston 4, during by steel ball 8 jack-up, upwards jack-up reed 3b and then promotion contact 3a trigger the state turnover of sensitive switch 3.
Advantage of the present invention is: provide a kind of hydraulic lock dislocation monitoring switch structure, can monitor the locking of hydraulic lock, released state, thus achieve the malfunction monitoring of hydraulic actuator.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the right elevation of Fig. 1.
Embodiment
Below the present invention is described in further details.See Fig. 1,2, a kind of actuator hydraulic lock dislocation monitoring of structures, comprise actuator housing 1, piston 4 and center-pole 7, piston 4 is positioned at the piston mounting holes on actuator housing 1, and center-pole 7 is positioned at the center hole of piston 4, piston 4 can move by actuator housing 1 relatively, between piston 4 and center-pole 7, have hydraulic lock, when hydraulic lock locks, piston 4 and center-pole 7 can not relative movement, when hydraulic lock unlocks, piston 4 and the relative movement of center-pole 7 energy; It is characterized in that: actuator hydraulic lock dislocation monitoring of structures also comprises support 2, sensitive switch 3, adjustable lever 5, nut 6 and steel ball 8; The end face of center-pole 7 has a blind hole, and this blind hole is divided into two sections, left and right, and left section be unthreaded hole section, and right section is internal thread segment, the aperture of the large diameter-ratio unthreaded hole section of this internal thread segment greatly, the unthreaded hole section of this blind hole and the top of center-pole 7 external cylindrical surface through; Adjustable lever 5 is divided into two sections, left and right, left section of adjustable lever is polished rod section, right section of adjustable lever is thread section, right section of adjustable lever is screwed in the internal thread segment of above-mentioned blind hole, keep Spielpassung in the unthreaded hole section that left section of adjustable lever enters above-mentioned blind hole, have a cross section to be the circular groove 5a being inverted isosceles trapezoid at the middle part of left section of adjustable lever, nut 6 is screwed on the outside thread of right section of adjustable lever, is locked by adjustable lever 5; The external cylindrical surface of piston 4 has a radial hole, the position of this radial hole is corresponding with the circular groove 5a in adjustable lever 5 polished rod section and be communicated with, 1 ~ 3 steel balls 8 are had in above-mentioned radial hole, steel ball 8 and above-mentioned radial hole Spielpassung, the quantity of steel ball 8 meets following condition: when the steel ball 8 when below enters circular groove 5a, and the sphere of steel ball 8 is not above higher than the external cylindrical surface of piston 4; Sensitive switch 3 is fixed on actuator housing 1 by support 2, and the reed 3b of sensitive switch 3 covers above-mentioned radial hole; When adjustable lever 5 moves relative to piston 4, during by steel ball 8 jack-up, upwards jack-up reed 3b and then promotion contact 3a trigger the state turnover of sensitive switch 3.
Working principle of the present invention is: when hydraulic lock unlocks, center-pole 7 and piston 4 produce relative displacement, the circular groove 5a of steel ball 8 relative adjustment bar 5 moves, when steel ball 8 moves to the inclined-plane of circular groove 5a, steel ball 8 moves upward in the radial hole of piston 4, upwards jack-up reed 3b and then promotion contact 3a trigger the state turnover of sensitive switch 3, send hydraulic lock unlocking signal.
When hydraulic lock locks, the circular groove 5a of adjustable lever 5 gets back to the axial location of radial hole, and steel ball 8 is pushed down in radial hole in the effect of reed 3b elastic force, and sensitive switch contact 3b gets back to home position, and sensitive switch resets, and sends hydraulic lock reset signal.
When hydraulic lock locks, steel ball 8 is relevant with monitoring threshold apart from the distance on circular groove 5a inclined-plane: when center-pole 7 opposing pistons 4 is to left movement, steel ball 8 is far away apart from inclined-plane on the right side of circular groove 5a, the displacement amount of center-pole 7 opposing pistons 4 that steel ball 8 jack-up needs is larger, and namely center-pole 7 opposing pistons 4 monitoring threshold that occurs to misplace left is larger; When center-pole 7 opposing pistons 4 moves right, steel ball 8 is far away apart from inclined-plane on the left of circular groove 5a, and the displacement amount of center-pole 7 opposing pistons 4 that steel ball 8 jack-up needs is larger, and namely the monitoring threshold that occurs to dextroposition of center-pole 7 opposing pistons 4 is larger.After being unscrewed by nut 6, be screwed into the degree of depth of center-pole unthreaded hole by threaded adjustment adjustable lever 5, adjustment steel ball 8 is apart from the distance on inclined-plane on the right side of circular groove 5a, and the monitoring threshold misplaced left occurs center-adjustable bar 7 opposing pistons 4; Adjustment steel ball 8 is apart from the distance on inclined-plane on the left of circular groove 5a, and the monitoring threshold to dextroposition occurs center-adjustable bar 7 opposing pistons 4.
Claims (1)
1. an actuator hydraulic lock dislocation monitoring of structures, comprise actuator housing (1), piston (4) and center-pole (7), piston (4) is positioned at the piston mounting holes on actuator housing (1), center-pole (7) is positioned at the center hole of piston (4), piston (4) can move by actuator housing (1) relatively, hydraulic lock is had between piston (4) and center-pole (7), when hydraulic lock locks, piston (4) and center-pole (7) can not relative movement, when hydraulic lock unlocks, piston (4) and the relative movement of center-pole (7) energy, it is characterized in that: actuator hydraulic lock dislocation monitoring of structures also comprises support (2), sensitive switch (3), adjustable lever (5), nut (6) and steel ball (8), the end face of center-pole (7) has a blind hole, this blind hole is divided into two sections, left and right, and left section is unthreaded hole section, and right section is internal thread segment, the aperture of the large diameter-ratio unthreaded hole section of this internal thread segment is large, and the top of the unthreaded hole section of this blind hole and center-pole (7) external cylindrical surface is through, adjustable lever (5) is divided into two sections, left and right, left section of adjustable lever is polished rod section, right section of adjustable lever is thread section, right section of adjustable lever is screwed in the internal thread segment of above-mentioned blind hole, keep Spielpassung in the unthreaded hole section that left section of adjustable lever enters above-mentioned blind hole, have a cross section to be the circular groove (5a) being inverted isosceles trapezoid at the middle part of left section of adjustable lever, nut (6) is screwed on the outside thread of right section of adjustable lever, is locked by adjustable lever (5), the external cylindrical surface of piston (4) has a radial hole, the position of this radial hole is corresponding with the circular groove (5a) in adjustable lever (5) polished rod section and be communicated with, 1 ~ 3 steel balls (8) are had in above-mentioned radial hole, steel ball (8) and above-mentioned radial hole Spielpassung, the quantity of steel ball (8) meets following condition: when the steel ball (8) when below enters circular groove (5a), and the sphere of steel ball (8) is not above higher than the external cylindrical surface of piston (4), sensitive switch (3) is fixed on actuator housing (1) by support (2), and the reed (3b) of sensitive switch (3) covers above-mentioned radial hole, when adjustable lever (5) is relative to piston (4) motion, during by steel ball (8) jack-up, upwards jack-up reed (3b) and then promotion contact (3a) trigger the state turnover of sensitive switch (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975512.4A CN105570233B (en) | 2015-12-21 | 2015-12-21 | A kind of actuator hydraulic lock dislocation monitoring of structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975512.4A CN105570233B (en) | 2015-12-21 | 2015-12-21 | A kind of actuator hydraulic lock dislocation monitoring of structures |
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| Publication Number | Publication Date |
|---|---|
| CN105570233A true CN105570233A (en) | 2016-05-11 |
| CN105570233B CN105570233B (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510975512.4A Active CN105570233B (en) | 2015-12-21 | 2015-12-21 | A kind of actuator hydraulic lock dislocation monitoring of structures |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1163058A1 (en) * | 1983-04-07 | 1985-06-23 | Производственное Объединение "Гомсельмаш" | Stand for dynamic tests of hydraulic system hoses |
| US4624445A (en) * | 1985-09-03 | 1986-11-25 | The Cessna Aircraft Company | Lockout valve |
| US4669494A (en) * | 1986-08-13 | 1987-06-02 | Teleflex Incorporated | Hydraulic lock valve with partial return to tank for marine steering |
| CN102434534A (en) * | 2011-11-09 | 2012-05-02 | 中国重型机械研究院有限公司 | Working state monitoring device and method for servo hydraulic system |
| CN202914442U (en) * | 2012-10-09 | 2013-05-01 | 中船澄西船舶修造有限公司 | Hydraulic lock overhauling device |
| CN103075388A (en) * | 2013-01-14 | 2013-05-01 | 燕山大学 | Hydraulic variable-stroke finely-tunable positioning locking type hydraulic cylinder testing rack |
-
2015
- 2015-12-21 CN CN201510975512.4A patent/CN105570233B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1163058A1 (en) * | 1983-04-07 | 1985-06-23 | Производственное Объединение "Гомсельмаш" | Stand for dynamic tests of hydraulic system hoses |
| US4624445A (en) * | 1985-09-03 | 1986-11-25 | The Cessna Aircraft Company | Lockout valve |
| US4669494A (en) * | 1986-08-13 | 1987-06-02 | Teleflex Incorporated | Hydraulic lock valve with partial return to tank for marine steering |
| CN102434534A (en) * | 2011-11-09 | 2012-05-02 | 中国重型机械研究院有限公司 | Working state monitoring device and method for servo hydraulic system |
| CN202914442U (en) * | 2012-10-09 | 2013-05-01 | 中船澄西船舶修造有限公司 | Hydraulic lock overhauling device |
| CN103075388A (en) * | 2013-01-14 | 2013-05-01 | 燕山大学 | Hydraulic variable-stroke finely-tunable positioning locking type hydraulic cylinder testing rack |
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| Publication number | Publication date |
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| CN105570233B (en) | 2017-07-07 |
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