CN104632787B - A kind of Autonomous test mechanism of pressurized strut built-in machines lock lock-out state - Google Patents
A kind of Autonomous test mechanism of pressurized strut built-in machines lock lock-out state Download PDFInfo
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- CN104632787B CN104632787B CN201510075466.2A CN201510075466A CN104632787B CN 104632787 B CN104632787 B CN 104632787B CN 201510075466 A CN201510075466 A CN 201510075466A CN 104632787 B CN104632787 B CN 104632787B
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- lock
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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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
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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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
A kind of Autonomous test mechanism of pressurized strut built-in machines lock lock-out state, it includes claw lock, the lock opening device of inner cavity of cylinder being arranged in cylinder cap, inductive position sensor is installed on this cylinder cap, target is fixing with the finger being placed in cylinder cap to be connected, guide is arranged on rear side of claw lock, and the ball axle cooperation of finger is contained in guide.The floating piston of this lock opening device is multidiameter, when locking, the end face pushing and pressing guide of this multidiameter, guide pushing and pressing finger, making the head deflection of finger, the sensing that the sensing target surface of target initially enters this inductive position sensor is interval, when locking opening device and completing the process of locking and reach lock-out state, inductive position sensor senses simultaneously and target detected, i.e. transmits mechanical lock locking signal to main frame master control system.Original mechanical lock structure, function are the most at all affected by the present invention, and simple for structure compact, good manufacturability, it is easy to manufacturing and safeguard, integrated cost is low, it is easy to popularization and application.
Description
Technical field
The present invention relates to a kind of pressurized strut, particularly relate to the Autonomous test mechanism of a kind of hydraulic pressure (or pneumatic) pressurized strut built-in machines lock lock-out state, it is particularly suitable for built-in machines lock hydraulic pressure (or pneumatic) pressurized strut that modern Aviation, space flight, ships etc. are higher to equipment Reliability, security requirement, is also widely used in general engineering machinery simultaneously.
Background technology
The a lot of pressurized struts in hydraulic pressure (or pneumatic) maneuvering motion mechanism on the equipment such as modern Aviation, space flight, ships, it is internally integrated and is provided with mechanical locking, fixing move to the position of regulation for the function element on equipment being pushed away (or drawing) after, making function element complete function or the task of regulation.Owing to the structure of pressurized strut built-in machines lock is integrated form, structure is closely, being difficult to Lock device with two same action member and directly arrange detecting instrument or device, be therefore presently mainly the position whether being moved to regulation by detection function element, whether indirect judgement pressurized strut built-in machines lock locks and locks.But the error due to spare part manufacture, assembling, install and using abrasion formation and accumulation thereof, the function element often equipped has been moved to the position of regulation, and pressurized strut internal mechanical lock may the most non-complete locking or the situation of locking, if now control system stops voltage supply, equipment can be caused severe safety accident, therefore the lock-out state of mechanical lock can not be directly monitored by main frame master control system so that equipment exists serious potential safety hazard.
Along with the function of Technology for Modern Equipment is increasingly advanced, complicated, its cost and cost are more and more higher, and the requirement to equipment safety improves constantly, and spy is standby is that the structure function part to equipment proposes must have real-time Autonomous test, from warning function.Therefore the lock-out state of tradition pressurized strut internal mechanical lock can not directly be monitored, and does not the most adapt to Technology for Modern Equipment, the particularly demand of modern military technology development.
Summary of the invention
It is an object of the invention to: provide one pressurized strut built-in machines lock lock-out state can be carried out self-monitoring mechanism, pressurized strut built-in machines lock is made to retain original automatic locking and lock, while the passive unlocking function of hydraulic pressure (or pneumatic), increase the automatic detection function of mechanical lock lock-out state, eliminate the potential safety hazard of equipment, to make simple and compact for structure, reasonable simultaneously, it is easy to manufacturing and safeguard, integrated cost is low.
Firstly the need of explanation, " left side ", " right side " referred to herein refers to the left side for accompanying drawing carrier or right side, left side, " front side " i.e. referred to herein, " rear side " i.e. right side.
For achieving the above object, the technical solution used in the present invention is: the Autonomous test mechanism of a kind of pressurized strut built-in machines lock lock-out state, including cylinder barrel, one end of this cylinder barrel is set by cylinder cap envelope, this cylinder cap is fixedly installed the claw lock of belt lock tongue, this inner cavity of cylinder is provided with the hollow main piston of band hollow main piston rod, this inner cavity of cylinder is divided into rod chamber and rodless cavity by main piston, the inner chamber of this main piston rod and main piston is provided with by the first spring base, first spring, floating piston, lock supporting block, locked groove, the lock opening device of lining composition, when main piston rod enters the locked groove of this lock opening device to left movement the dead bolt that makes claw lock, this lock supporting block enters claw lock endoporus lock dog lock；This floating piston includes with main piston rod inner chamber coordinates the big axle of ladder and for coordinating fixing lock supporting block, the little axle of ladder of sleeve pipe, the inner hollow of this cylinder cap, and form endoporus bottom face, it is provided with guide on rear side of claw lock in this cylinder cap, second spring is set between this guide and endoporus bottom face, and the rear side of this guide arranges finger, the middle and lower part of this finger arranges ball axle, when the dead bolt of claw lock enters the locked groove of lock opening device, floating piston is under the effect of the first spring, lock supporting block is driven to enter claw lock endoporus together, the little axle of ladder of floating piston stretches out and pushes against guide on rear side of claw lock, guide is made to push against the ball axle on finger while compression the second spring, make the head deflection of finger；Fixing connection inductive position sensor outside this cylinder cap, the head of this finger is fixedly connected in the rotating shaft being articulated on cylinder cap, the one end connecting target is fixed in one end of this rotating shaft, the sensing target surface of this target is relative with this inductive position sensor, this inductive position sensor access host master control system, when the head deflection of finger, the sensing target surface of this target moves closer to this inductive position sensor and enters the sensing interval of this inductive position sensor, the sensing of this inductive position sensor one detects target, i.e. transmit mechanical lock locking signal to main frame master control system.
Being improved to further of such scheme, is provided with sleeve pipe and sleeve pipe, lock supporting block, the little axle of ladder is locked as overall nut on rear side of the lock supporting block on the little axle of this ladder.
Being improved to further of such scheme, it is provided with first on the left of this guide, two multidiameters, this first multidiameter is arranged on claw lock endoporus for cooperation, ladder blind-hole bottom face it is provided with in this first multidiameter, this ladder blind-hole bottom face axle external part little with the ladder of floating piston matches, this second multidiameter is arranged on the rear side endoporus of claw lock for coordinating, it is axially arranged with groove along this guide, it is radially provided with the pin-shifting hole intersected with groove, this groove and pin-shifting hole are used for coordinating installation finger, the ball axle making finger is positioned at pin-shifting hole, finger afterbody stretches in groove, it is perpendicular to pin-shifting hole in this second multidiameter and is provided with uniform two spring mounting hole vertically, for installing the second spring.
Being improved to further of such scheme, the head of this finger is sheathed in rotating shaft, and is fixed with rotating shaft by finger through hinge pin, and one end of connection target is fixed in one end of this rotating shaft through boring swollen screw.
Being improved to further of such scheme, has a platform outside this cylinder cap, this platform connects fixing inductive position sensor by right angle rack.
Being improved to further of such scheme, first and second screwed hole is had in this cylinder cap, this first screwed hole is for being fastened on cylinder barrel by cylinder cap, and this second screwed hole is for being fastened on claw lock in cylinder cap, and there is the second through hole in the direction of vertical first and second screwed hole.
The present invention is that the structure to the most patented pressurized strut built-in machines lock (" a kind of claw locking device the being built in pressurized strut piston " patent No.: ZL2010202022549) carries out innovative design, keep tradition pressurized strut built-in machines lock construction and function constant on the basis of, the automatic detection function that adds mechanical lock lock-out state, the relative position functions that can arbitrarily adjust between target with inductive position sensor.
The operation principle of the present invention is:
Rod chamber enters hydraulic oil (or outer load pushes main piston rod), and pressure oil (or carrying outward) promotes main piston lever lock opening device to move right and is locked into into lock opening device to claw, starts to lock.When the dead bolt of claw lock enters locked groove, floating piston is under the elastic force effect of the first spring, move right, lock supporting block on the little axle of floating piston ladder is initially inserted into claw lock endoporus the most therewith, the right side of the little axle of floating piston ladder touches and extrudes guide simultaneously so that guide starts to move right and extrude the second spring.Guide is stirred finger axis around the shaft and is rotated while moving right, so that target, rotating shaft, finger Coupled motion part axis around the shaft rotate counterclockwise, the sensing target surface of target moves closer to inductive position sensor.When the right side of the big axle of floating piston ladder touch claw lock end face and during stop motion, lock supporting block the most fully-inserted claw lock endoporus on the little axle of floating piston ladder, mechanical lock is in the lock state, guide also stops moving right and extrusion spring, target, rotating shaft, finger Coupled motion part also stop axis around the shaft and rotate counterclockwise, and now the sensing target surface of target just enters the sensing interval of inductive position sensor.Inductive position sensor once senses and target detected, sends signal to main frame master control system immediately, shows that now mechanical lock has been in lock-out state (such as Fig. 2).
Rodless cavity enters hydraulic oil, and pressure oil promotes main piston lever lock opening device to left movement, carries out unlocking action.Now the little axle of the ladder of floating piston no longer extrudes guide, guide is also moved to the left under the second spring force effect between itself and cylinder cap, and stir the rotation of finger axis around the shaft, so that target, rotating shaft, the rotation of finger Coupled motion part axis both clockwise around the shaft, the sensing target surface of target is gradually distance from inductive position sensor and exits sensing interval.Inductive position sensor sensing can't detect target, sends signal to main frame master control system immediately, shows that now mechanical lock is not the most at lock-out state.When guide contacts to claw is locked, stop to left movement (such as Fig. 3).
Owing to inductive position sensor induction precision is the highest, distance of reaction only has 0～1.8mm, the most only under mechanical lock fully locked state, target is coordinated the distance of reaction being arranged in rotating shaft and adjusting target sensitive surface and inductive position sensor, then with boring swollen screw, target is fixedly connected in rotating shaft；When boring the inner circle taper hole that the cone axis of swollen screw installs axle by target, produce and bore swollen extruding, make target that axle be installed and produce elastic deformation, target is installed axle cylindrical and is become big, extruding rotating shaft installing hole, make it assemble normal pressure to strengthen, and then make its frictional force increase, thus could firmly and accurately fix the position of target.
Present invention employs structure assembly, Autonomous test, bore swollen extrusion technique, keeping conventional internal mechanical lock pressurized strut structure, function and operation principle constant on the basis of, structure is carried out innovative design, achieve the automatic of pressurized strut built-in machines lock lock-out state, directly, reliable detection, and the relative position functions that can arbitrarily adjust between target with inductive position sensor, and the detection signal locked easily feeds back to main frame master control system, can preferably realize numeral to dock with the master control system of main frame, manipulation is simple, achieve main frame master control system directly lock-out state to be monitored, not only eliminate the potential safety hazard of equipment, meet Technology for Modern Equipment to function Autonomous test and the development trend of raising safety needs, and it is simple and compact for structure, rationally, easily fabricated and safeguard.
Accompanying drawing explanation
Fig. 1 is external structure and the rigging position schematic diagram of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1, is also an embodiment of the present invention mechanical lock lock-out state schematic diagram.
Fig. 3 is the A-A sectional view of Fig. 1, is also an embodiment of the present invention mechanical lock unlocked state schematic diagram.
Fig. 4 is the B-B sectional view of Fig. 1.
Fig. 5 is the structural representation of cylinder cap of the present invention.
Fig. 6 is the C-C sectional view of Fig. 5.
Fig. 7 is the structural representation of guide of the present invention.
Fig. 8 is the D-D sectional view of Fig. 7.
Fig. 9 is the structural representation of finger of the present invention.
Figure 10 is the structural representation of rotating shaft of the present invention.
Figure 11 is the structural representation of target of the present invention.
Figure 12 is the left view of Figure 11.
Figure 13 is the structural representation of the swollen screw of cone of the present invention.
Figure 14 is the structural representation of support of the present invention.
Figure 15 is the structural representation of floating piston of the present invention.
nullIn figure: 1. inductive position sensor，2. support，3. screw，4. cylinder cap，5. target，6. main piston rod，7. the first spring，8. floating piston，9. lock supporting block，10. sleeve pipe，11. nuts，12. guides，13. second springs，14. rotating shafts，15. hinge pin、16. fingers，17. bore swollen screw，18. mounting bracket screwed holes，19. first screwed holes，20. second screwed holes，21. endoporus bottom faces，22 rotating shaft installing holes，23. first multidiameters，24. ladder blind-hole bottom faces，The stop surface of 25. guides，26. second multidiameters、27. pin-shifting holes，28. grooves，29. spring mounting holes，30. ball axles，31、32. first、Second hinged screwed hole，33. package packing rotating shaft holes，The 34. little axles of rotating shaft ladder，35. hinge holes，36. tapped blind holes，37. rotating shaft blind holes，38. install axle，39. internal taper holes，40. narrow grooves，41. through holes，42. cone axis，43. thread spindles，44 inductive position sensor installing holes，45. screw mounting holes，The 46. big axles of ladder，The 47. little axles of ladder，48. external screw threads.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings:
The present invention uses Integrated design and bores swollen technology, the mechanism of detection mechanical lock lock-out state automatic, direct is devised in built-in machines lock pressurized strut, its structure and rigging position as shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, wherein Fig. 2 is mechanical lock lock-out state Autonomous test schematic diagram.The Autonomous test mechanism of the present invention a kind of pressurized strut built-in machines lock lock-out state includes the floating piston 8 in mechanical lock device, inductive position sensor 1, support 2, cylinder cap 4, guide the 12, first spring 7, finger the 16, second spring 13, rotating shaft 14, hinge pin 15, target 5 and bores swollen screw 17.
Described support 2 is provided with through hole 44, is used for installing inductive position sensor 1, and support 2 is provided with 4 screw mounting holes 45, for screw 3, support 2 is fastened on cylinder cap 4.Described floating piston 8 is arranged in main piston rod 6.As shown in Figure 5, Figure 6, the cylindrical of described cylinder cap 4 is provided with 4 mounting bracket screwed holes 18, for connecting fixed support 2, endoporus is provided with first screwed hole the 19, second screwed hole 20, it is respectively used to that cylinder cap 4 is fastened on cylinder barrel a and is locked by claw b be fastened on cylinder cap 4, endoporus bottom face 21, for stopping the second spring 13, is perpendicular to first and second screwed hole direction and is provided with rotating shaft installing hole 22, be used for installing rotating shaft 14.As shown in Figure 7, Figure 8, described guide 12 is provided with first multidiameter the 23, second multidiameter 26, it is arranged on claw lock endoporus for coordinating, it is provided with ladder blind-hole bottom face 24 in first multidiameter 23, for bearing the pushing of the little axle of ladder of floating piston, is provided with groove 28 vertically, it is radially provided with the pin-shifting hole 27 intersected with groove, for coordinating installation finger 16, vertical pin-shifting hole 27 and be provided with uniform 2 spring mounting hole 29 vertically in the second multidiameter 26, it is used for laying the second spring 13.
Described finger 16 is radially having package packing rotating shaft hole 33, it is sleeved on rotating shaft 14 for finger, it is axially arranged with the first hinged screwed hole 32 and the coaxial second hinged screwed hole 31, all communicate with package packing rotating shaft hole 33, for finger 16 being fixed with rotating shaft 14 by hinge pin 15, it is provided with ball axle 30 vertically, within coordinating the pin-shifting hole 27 being arranged on guide 12 (such as Fig. 9).Described rotating shaft 14 is provided with the little axle of rotating shaft ladder 34, it is radially provided with hinge hole 35 at it, is used for hinge pin 15 is installed, be axially arranged with rotating shaft blind hole 37 at an axle head, rotating shaft blind hole 37 bottom face has tapped blind hole 36, is used for coordinating installation target 5 and boring swollen screw 17(such as Figure 10).Described target 5 is provided with installation axle 38, is provided with internal taper hole 39(such as Figure 11 in axle), target arm is provided with the through hole 41 parallel with internal taper hole 39, is simultaneously provided with the narrow groove 40(such as Figure 12 all communicated with internal taper hole 39, through hole 41).Described cone is swollen, and screw 17 is provided with cone axis 42, thread spindle 43, cone axis 42 is within coordinating the internal taper hole 39 being arranged on target 5, and the thread spindle 43 tapped blind hole 36 in connection rotating shaft 14, such target, rotating shaft, finger become a Coupled motion part (such as Fig. 4).Described floating piston 8 is provided with the big axle of ladder 46, the little axle of ladder 47, ladder big axle 46 cylindrical is provided with sealed groove, for installing sealing member, the little axle of ladder 47 is provided with one section of external screw thread 48, for lock supporting block 9, sleeve pipe 10 being fixedly mounted on the little axle of floating piston ladder 47 by nut 11, piston 8, lock supporting block 9, sleeve pipe 10, nut 11 is made to be integrally formed STATEMENT OF FEDERALLY SPONSORED (such as Fig. 2).
Claims (7)
1. the Autonomous test mechanism of a pressurized strut built-in machines lock lock-out state, including cylinder barrel (a), one end of this cylinder barrel is set by cylinder cap (4) envelope, this cylinder cap is fixedly installed claw lock (b) of belt lock tongue, this inner cavity of cylinder is provided with hollow main piston (c) of band hollow main piston rod (6), this inner cavity of cylinder is divided into rod chamber and rodless cavity by main piston, the inner chamber of this main piston rod and main piston is provided with by the first spring base (d), first spring (7), floating piston (8), lock supporting block (9), locked groove (e), the lock opening device that lining (f) forms, when main piston rod is retracted into cylinder barrel, the dead bolt of this claw lock enters the locked groove of this lock opening device, this lock supporting block enters claw lock endoporus lock dog lock simultaneously；It is characterized in that,
This floating piston includes with main piston rod inner chamber coordinates the big axle of ladder (46) and the little axle of the ladder (47) with claw lock inner hole, the little axle of this ladder is fixed with lock supporting block；The inner hollow of this cylinder cap, and form endoporus bottom face (21), it is provided with guide (12) on rear side of claw lock in this cylinder cap, second spring (13) is set between this guide and endoporus bottom face, and the rear side of this guide arranges finger (16), the middle and lower part of this finger arranges ball axle (30), when the dead bolt of claw lock enters the locked groove of lock opening device, floating piston is under the effect of the first spring, lock supporting block is driven to enter claw lock endoporus together, the little axle of ladder of floating piston stretches out and pushes against guide on rear side of claw lock, guide is made to push against the ball axle on finger while compression the second spring, make the head deflection of finger；Fixing connection inductive position sensor (1) outside this cylinder cap, the head of this finger is fixedly connected in the rotating shaft (14) being articulated on cylinder cap, fixing one end connecting target (5), one end of this rotating shaft, the sensing target surface of this target is relative with this inductive position sensor, this inductive position sensor access host master control system, when the head deflection of finger, the sensing target surface of this target moves closer to this inductive position sensor and enters the sensing interval of this inductive position sensor, the sensing of this inductive position sensor one detects target, i.e. transmit mechanical lock locking signal to main frame master control system.
The Autonomous test mechanism of a kind of pressurized strut built-in machines the most according to claim 1 lock lock-out state, it is characterised in that be provided with sleeve pipe (10) on rear side of the lock supporting block on the little axle of this ladder and sleeve pipe, lock supporting block, the little axle of ladder are locked as overall nut (11).
nullThe Autonomous test mechanism of a kind of pressurized strut built-in machines the most according to claim 1 lock lock-out state，It is characterized in that，It is provided with first on the left of this guide、Two multidiameters (23、26)，This first multidiameter is arranged on claw lock endoporus for cooperation，Ladder blind-hole bottom face (24) it is provided with in this first multidiameter，This ladder blind-hole bottom face axle external part little with the ladder of floating piston matches，This second multidiameter is arranged on the rear side endoporus of claw lock for coordinating，It is axially arranged with groove (28) along this guide，It is radially provided with the pin-shifting hole (27) intersected with groove，This groove and pin-shifting hole are used for coordinating installation finger，The ball axle making finger is positioned at pin-shifting hole，Finger afterbody stretches in groove (28)，It is perpendicular to pin-shifting hole in this second multidiameter and is provided with uniform two spring mounting hole (29) vertically，For installing the second spring.
The Autonomous test mechanism of a kind of pressurized strut built-in machines the most according to claim 1 lock lock-out state, it is characterized in that, the head of this finger is sheathed in rotating shaft, and is fixed with rotating shaft by finger through hinge pin (15), and one end of this rotating shaft is through boring the fixing one end connecting target of swollen screw (17).
The Autonomous test mechanism of a kind of pressurized strut built-in machines the most according to claim 1 lock lock-out state, it is characterized in that, under mechanical lock fully locked state, target is coordinated the distance of reaction being arranged in rotating shaft and adjusting target sensitive surface and inductive position sensor, then with boring swollen screw, target is fixedly connected in rotating shaft.
The Autonomous test mechanism of a kind of pressurized strut built-in machines the most according to claim 1 lock lock-out state, it is characterised in that have a platform outside this cylinder cap, this platform connects fixing inductive position sensor by right angle rack (2).
The Autonomous test mechanism of a kind of pressurized strut built-in machines the most according to claim 1 lock lock-out state, it is characterized in that, first and second screwed hole (19,20) is had in this cylinder cap, this first screwed hole is for being fastened on cylinder barrel by cylinder cap, this second screwed hole is for being fastened on claw lock in cylinder cap, and there is the second through hole in the direction of vertical first and second screwed hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510075466.2A CN104632787B (en) | 2015-02-12 | 2015-02-12 | A kind of Autonomous test mechanism of pressurized strut built-in machines lock lock-out state |
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| CN201510075466.2A CN104632787B (en) | 2015-02-12 | 2015-02-12 | A kind of Autonomous test mechanism of pressurized strut built-in machines lock lock-out state |
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Families Citing this family (5)
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| CN109032191A (en) * | 2015-07-03 | 2018-12-18 | 深圳市大疆灵眸科技有限公司 | Cloud platform control method and holder |
| CN106089853B (en) * | 2016-08-25 | 2018-04-17 | 中航飞机起落架有限责任公司 | The pressurized strut and its locking of a kind of built-in machines lock, the method unlocked |
| CN108799253A (en) * | 2018-06-19 | 2018-11-13 | 北京航空航天大学 | A kind of miniature locking pressurized strut |
| JP7063435B2 (en) * | 2019-07-04 | 2022-05-09 | Smc株式会社 | Sensor fixtures and fluid pressure cylinders |
| CN117886250A (en) * | 2024-03-15 | 2024-04-16 | 三一重型装备有限公司 | Piston rod locking mechanism, jack and hydraulic support |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52154976A (en) * | 1976-06-18 | 1977-12-23 | Teijin Seiki Co Ltd | Actuator |
| US4491059A (en) * | 1982-03-29 | 1985-01-01 | Pneumo Corporation | Fluid actuator with manual lock release and lock position sensor |
| DE19523201C1 (en) * | 1995-06-27 | 1996-08-01 | Rexroth Mannesmann Gmbh | Positioning drive e.g. for machine tool |
| CA2479454A1 (en) * | 2004-08-30 | 2006-02-28 | Gary Stephen Ataman | Internally locking actuator with direct acting integral lock sensor |
| CN201671913U (en) * | 2010-05-25 | 2010-12-15 | 中航飞机起落架有限责任公司 | Actuator cylinder with built-in claw lock device |
| AU2011349408A1 (en) * | 2010-12-22 | 2013-07-04 | Actuant Corporation | Hydraulic cylinder position sensing and locking system and corresponding method |
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