CN102568874B - Electric switch trigger mechanism on actuating cylinder - Google Patents
Electric switch trigger mechanism on actuating cylinder Download PDFInfo
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- CN102568874B CN102568874B CN201110413287.7A CN201110413287A CN102568874B CN 102568874 B CN102568874 B CN 102568874B CN 201110413287 A CN201110413287 A CN 201110413287A CN 102568874 B CN102568874 B CN 102568874B
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- pull rod
- electric switch
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Abstract
The invention relates to an electric switch trigger mechanism on an actuating cylinder. A supporting seat is connected with a right end cover, and is fixed above an outer cylinder through a clamp; an electric switch is fixedly arranged on the supporting seat; a hook-shaped connecting rod is connected with the right end cover; a straight connecting rod is connected with a piston rod; the hook-shaped connecting rod is also connected with the straight connecting rod; a ring-shaped pull rod is connected with the hook-shaped connecting rod; an ejector rod is fixedly arranged at the left end of the ring-shaped pull rod; a supporting plate nut is arranged on each of two sides of the supporting seat on which the electric switch is arranged; the ring-shaped pull rod is sleeved outside of the supporting seat; and the supporting plate nuts penetrate through long round holes on two sides of the ring-shaped pull rod and are fixed through bolts. The electric switch trigger mechanism is driven by the piston rod from the outside, the trigger mechanism is driven by the piston rod so as to drive a connecting rod mechanism to move, the oscillation of the connecting rods drives the ring-shaped pull rod, and the pull rod triggers the electric switch. The connecting rod mechanism moves stably, is difficult to be clamped, and is convenient to examine and maintain.
Description
Technical field
The present invention relates to the pressurized strut servicing unit in aeronautical manufacture, particularly the switch trigger mechanism in pressurized strut.
Background technology
At Field of Aviation Manufacturing, pressurized strut is for driver part motion, when component movement needs to provide the signal of telecommunication to feed back to related system during to final position sometimes, to show the status of driven parts, is common in the folding and unfolding of undercarriage, hatch door etc.Therefore in some pressurized strut with switch mechanism, in pressurized strut, entirely stretch out or full reducedly trigger switch while entering, provide the signal of telecommunication.
Switch trigger mechanism in pressurized strut has two kinds of forms conventionally:
A) internal drive mode: promote the inner rocking arm of cylinder by piston rod movement, passed to outside cylinder by internal motion, Zai You external agency triggers switch.This version is very complicated, and transmitting rotating shaft needs sealing; Inner rocking arm is less, easy fracture or clamping stagnation, and break down and be difficult to find in advance in inside, and easily bring hidden danger, reliability is not high; Trigger process speed is suitable with piston rod speed, and switch is produced and impacted, and affects switch life.
B) external drive mode: at the outside cylinder lever connecting rod of piston rod, by the rectilinear motion triggering switch of pull bar, whole electric switch trigger mechanism is all outside in pressurized strut.Because pull bar movement travel is longer, equate with piston rod, during insufficient lubrication, easily produce wearing and tearing and cause clamping stagnation, trigger process speed to equate with piston rod speed, switch is produced and impacted, affect switch life.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of electric switch trigger mechanism, by pressurized strut piston rod, externally driven, the motion of electric switch trigger mechanism is steadily reliable, can effectively reduce failure rate, improves maintainability.
For achieving the above object, technical scheme of the present invention is, switch trigger mechanism in pressurized strut, it is characterized in that, bearing is connected with right end cap, bearing is fixed on the top of urceolus by clip, switch is fixedly installed on bearing, hook-type connecting rod is connected with right end cap, straight connecting rod is connected with piston rod, hook-type connecting rod is connected with straight connecting rod, annular pull rod is connected with hook-type connecting rod, push rod is fixedly mounted on the left end of annular pull rod, the both sides of switch erection support are provided with plate nut, annular pull rod is set in the outside of bearing, plate nut passes the slotted hole of annular pull rod both sides and fixes by screw.
Electric switch trigger mechanism involved in the present invention is external drive mode, by piston rod, is externally driven, and trigger mechanism is piston rod drivening rod mechanism kinematic, and the swing of connecting rod drives annular pull rod, by pull bar, triggers switch.Connecting rod mechanism movement is stable, is difficult for clamping stagnation, is convenient to examination and maintenance.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the A-A cross sectional view of Fig. 1.
Fig. 4 is the axonometric drawing of this embodiment.
Fig. 5 is the axonometric drawing that piston rod stretches out state entirely.
In figure: 1. push rod, 2. switch, 3. bearing, 4. annular pull rod, 5. hook-type connecting rod, 6. straight connecting rod, 7. piston rod, 8. right end cap, 9. urceolus, 10. clip, 11. plate nuts.
Embodiment
Below in conjunction with the embodiment of accompanying drawing, the invention will be further described, referring to Fig. 1 to Fig. 5, switch trigger mechanism in pressurized strut, it is characterized in that, bearing 3 is connected with right end cap 8, bearing 3 is fixed on the top of urceolus 9 by clip 10, switch 2 is fixedly installed on bearing 3, hook-type connecting rod 5 is connected with right end cap 8, straight connecting rod 6 is connected with piston rod 7, hook-type connecting rod 5 is connected with straight connecting rod 6, annular pull rod 4 is connected with hook-type connecting rod 5, push rod 1 is fixedly mounted on the left end of annular pull rod 4, the both sides of switch erection support 3 are provided with plate nut 11, annular pull rod 4 is set in the outside of bearing 3, plate nut 11 passes the slotted hole of annular pull rod 4 both sides and fixes by screw.
embodiment:as shown in fig. 1, the switch trigger mechanism in pressurized strut of the present invention, its below is conventional hydraulic actuator, in full reduced, enters state, and top is switch trigger mechanism, and switch 2 is in off-state.Four screws of bearing 3 use are arranged on right end cap 8, and with clip 10, it are fixed on urceolus 9, and switch 2 use screws are arranged on bearing 3.Hook-type connecting rod 5 is connected with pressurized strut right end cap 8 by tack axle, and straight connecting rod 6 is connected with piston rod 7 by bolt, and hook-type connecting rod 5 is connected by tack axle with straight connecting rod 6.Annular pull rod 4 is connected with hook-type connecting rod 5 by tack axle, and push rod 1 is contained on the left end of annular pull rod 4, fastening locking with double nut.Two plate nuts 11 are equipped with in the both sides of switch erection support 3, annular pull rod 4 is enclosed within the outside of switch erection support 3, plate nut 11 is through the slotted hole of annular pull rod 4 both sides, play the guide effect of annular pull rod 4 horizontal directions, packing ring and screw are housed on plate nut 11 and prevent that annular pull rod 4 from deviating from.Switch 2 trigger process: piston rod 7 stretches out in process, drive annular pull rod 4 to be first moved to the left by linkage, then move right.When piston rod 7 stretches out stroke and remains about 20mm, push rod 1 starts top piezoelectricity door switch 2, until piston rod 7 stretches out entirely, switch 2 is connected.In piston rod 7 indentation processes, during to the about 20mm of stroke, push rod 1 rollback, electric switch leaves 2 passes and disconnects, and to full reduced, while entering, device of the present invention is got back to the initial condition shown in Fig. 1.
The speed of trigger process annular pull rod 4 of the present invention is only approximately 20% of piston rod 7 speed, steadily reliable, to switch 2, without impacting, can improve 2 useful lifes of switch.Therefore this mechanism form can effectively reduce failure rate, improves reliability and the maintainability of mechanism.
Claims (1)
1. the switch trigger mechanism in pressurized strut, it is characterized in that, bearing (3) is connected with the right end cap (8) of pressurized strut, bearing (3) is fixed on the top of the urceolus (9) of pressurized strut by clip (10), switch (2) is fixedly installed on bearing (3), hook-type connecting rod (5) is connected by tack axle with the right end cap (8) of pressurized strut, straight connecting rod (6) is connected with the piston rod (7) of pressurized strut, the end of the minor face of hook-type connecting rod (5) is connected by tack axle with annular pull rod (4), the end, long limit of hook-type connecting rod (5) be connected by tack axle with straight connecting rod (6), push rod (1) is fixedly mounted on the left end of annular pull rod (4), the both sides of bearing (3) are provided with plate nut (11), annular pull rod (4) is set in the outside of bearing (3), plate nut (11) passes the slotted hole of annular pull rod (4) both sides and fixes by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110413287.7A CN102568874B (en) | 2011-12-13 | 2011-12-13 | Electric switch trigger mechanism on actuating cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110413287.7A CN102568874B (en) | 2011-12-13 | 2011-12-13 | Electric switch trigger mechanism on actuating cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102568874A CN102568874A (en) | 2012-07-11 |
| CN102568874B true CN102568874B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110413287.7A Active CN102568874B (en) | 2011-12-13 | 2011-12-13 | Electric switch trigger mechanism on actuating cylinder |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106081071B (en) * | 2016-06-02 | 2018-11-27 | 江西洪都航空工业集团有限责任公司 | A kind of novel switch cam trigger mechanism |
| CN106218866B (en) * | 2016-08-19 | 2018-07-27 | 中航飞机起落架有限责任公司 | A kind of backplate follower of undercarriage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4342885A (en) * | 1980-03-27 | 1982-08-03 | Matsushita Electric Works, Ltd. | Limit switch |
| CN2499337Y (en) * | 2001-08-01 | 2002-07-10 | 冼志超 | Electric switch mechanism for automatic quantative package machine outlet |
| CN101870357A (en) * | 2010-06-23 | 2010-10-27 | 南京航空航天大学 | Nose wheel steering control mechanism of semi-annular actuating cylinder |
| CN102162477A (en) * | 2011-03-25 | 2011-08-24 | 成都飞机工业（集团）有限责任公司 | Actuator cylinder |
| CN202363292U (en) * | 2011-12-13 | 2012-08-01 | 江西洪都航空工业集团有限责任公司 | Trigger mechanism of electric door switch on actuating barrel |
-
2011
- 2011-12-13 CN CN201110413287.7A patent/CN102568874B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4342885A (en) * | 1980-03-27 | 1982-08-03 | Matsushita Electric Works, Ltd. | Limit switch |
| CN2499337Y (en) * | 2001-08-01 | 2002-07-10 | 冼志超 | Electric switch mechanism for automatic quantative package machine outlet |
| CN101870357A (en) * | 2010-06-23 | 2010-10-27 | 南京航空航天大学 | Nose wheel steering control mechanism of semi-annular actuating cylinder |
| CN102162477A (en) * | 2011-03-25 | 2011-08-24 | 成都飞机工业（集团）有限责任公司 | Actuator cylinder |
| CN202363292U (en) * | 2011-12-13 | 2012-08-01 | 江西洪都航空工业集团有限责任公司 | Trigger mechanism of electric door switch on actuating barrel |
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|---|---|
| CN102568874A (en) | 2012-07-11 |
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