CN102518621A - Actuator cylinder position locking and unlocking mechanism - Google Patents
Actuator cylinder position locking and unlocking mechanism Download PDFInfo
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- CN102518621A CN102518621A CN2011104317233A CN201110431723A CN102518621A CN 102518621 A CN102518621 A CN 102518621A CN 2011104317233 A CN2011104317233 A CN 2011104317233A CN 201110431723 A CN201110431723 A CN 201110431723A CN 102518621 A CN102518621 A CN 102518621A
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- lock pin
- connecting rod
- piston
- push rod
- radial hole
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Abstract
The invention relates to an actuator cylinder position locking and unlocking mechanism, which comprises a cylinder body (4), a piston (5) and an ejector rod (6). The ejector rod (6) is mounted in the piston (5), a cavity is arranged at one end of the ejector rod (6), a spring (1) is mounted in the cavity, a hole is arranged at the other end of the ejector rod (6), the other end of the ejector rod is connected with a first connecting rod (7) with a cylindrical boss, the first connecting rod (7), a second connecting rod (8) and a third connecting rod (9) are hinged sequentially, and the other end of the third connecting rod (9) is fixed relatively. Radial holes (51) used for mounting an upper lock pin (2) and a lower lock pin (3) are arranged at one end of the piston (5) close to the cavity of the ejector rod (6) and are distributed circumferentially, and grooves are arranged in the radial holes (51). An annular groove (10) is arranged in the cylinder body (4) and the lower lock pin (3) can be clamped into the annular groove (10). The upper position and the lower position of a hydraulic/pneumatic actuator cylinder can be locked by the aid of the actuator cylinder position locking and unlocking mechanism which is high in locking force, low in unlocking force and high in reliability.
Description
Technical field
The present invention relates to a kind of pressurized strut locking position and release mechanism, be mainly used in the hydraulic/pneumatic cylinders that needs the upper and lower position locking.
Background technique
At present, the hydraulic/pneumatic cylinders locking position adopts the form of " floating piston+steel ball " more, shown in Figure of description 1; Cylinder body 21 is fixing; Piston 28 motions are in uplock regularly, and the position of steel ball 23 is by armature 24 restrictions; Piston 28 can't be ejected by steel ball 23 restrictions, realizes upper locking.During release, electromagnet 22 energisings, with armature 24 adhesives, steel ball 23 is loosening, and piston 28 ejects.In like manner, the next locking utilizes spring 25, floating piston 26 and steel ball 23 to realize.
The shortcoming of this lock-in techniques: coupling mechanism force is less; Required releasing force is bigger; Steel ball 23 is stuck easily with armature 24, and reliability is not high.
Summary of the invention
The object of the invention: design a kind of coupling mechanism force is big, releasing force is little, reliability is high hydraulic/pneumatic cylinders locking position and release mechanism.
Technological scheme of the present invention: a kind of pressurized strut locking position and release mechanism, comprise cylinder body [4], piston [5], push rod [6], push rod [6] is installed in the piston [5]; Push rod [6] one ends are provided with cavity; Spring [1] wherein is installed, and the other end is provided with porose, is connected with the first connecting rod that has cylinder boss [7]; First connecting rod [7], second connecting rod [8], third connecting rod [9] are hinged successively, third connecting rod [9] the other end relative fixed; The end that piston [5] is gone up near push rod [6] cavity is provided with the radial hole [51] that is used to install upper lock pin [2] and the next lock pin [3], and radial hole [51] is uniformly distributed along the circumference, and radial hole is provided with groove in [51]; Be provided with the annular groove [10] that the next lock pin [3] is snapped in the cylinder body [4].
Further, above-mentioned push rod [6] is provided with and can makes upper lock pin [2] and the next lock pin [3] produce the device of relative movement.
Further, said apparatus is the boss [31] on band inclined-plane.
Further, above-mentioned upper lock pin [2] and the next lock pin [3] are provided with the inclined-plane [42] that matches with the boss inclined-plane.
Further, upper lock pin [2] and the next lock pin [3] are provided with ball-and-socket [41], and ball-and-socket is provided with steel ball in [41], are provided with the groove that cooperates with steel ball in the radial hole [51].
Beneficial effect of the present invention:
1) coupling mechanism force is big.Coupling mechanism force equals to destroy by force the power that locking device needs.Among the present invention, destroy locking device and need cut off upper lock pin [2] or the next lock pin [3], required power is bigger.
2) releasing force is little.Releasing force equals the component of the elastic force of spring [1] in the F direction, and this component is very little.
3) reliability of sleeve mechanism is high.
Description of drawings:
Fig. 1 is existing pressurized strut locking and release mechanism schematic representation, 21: cylinder body, 22: electromagnet, 23: steel ball, 24: armature, 25: spring, 26: floating piston, 28: piston rod.
Fig. 2 be the present invention be applied to certain model hydraulic actuator structural scheme of mechanism; Wherein, 1: spring, 2: upper lock pin, 3: the next lock pin, 4: cylinder body, 5: piston, 6: push rod, 7: first connecting rod, 8: second connecting rod, 9: third connecting rod, 10: annular groove.
Fig. 3 is the structural representation of push rod 6,31: boss.
Fig. 4 is the structural representation of upper lock pin 2,41: ball-and-socket, 42: the inclined-plane.
Fig. 5 is the structural representation of piston 5,51: radial hole.
Embodiment
Below in conjunction with Figure of description and embodiment the present invention is made further detailed description.See also Figure of description 2～5.
A kind of pressurized strut locking position and release mechanism comprise cylinder body 4, piston 5, push rod 6, and push rod 6 is installed in the piston 5; Push rod 6 one ends are provided with cavity; Spring 1 wherein is installed, and the other end is provided with porose, is connected with the first connecting rod that has cylinder boss 7; First connecting rod 7, second connecting rod 8, third connecting rod 9 are hinged successively, third connecting rod 9 the other end relative fixed; End near push rod 6 cavitys on the piston 5 is provided with the radial hole 51 that is used to install upper lock pin 2 and the next lock pin 3, and radial hole 51 is uniformly distributed along the circumference, and is provided with groove in the radial hole 51; Be provided with the annular groove 10 that the next lock pin 3 is snapped in the cylinder body 4.
Fig. 2 (a) is depicted as upper lock state.Spring 1 is pressed on push rod 6 on the first connecting rod 7, and first connecting rod 7, second connecting rod 8, third connecting rod 9 usefulness hinges connect, and the position of second connecting rod 8 is limited by the external world, becomes the α angle with horizontal axis.Upper lock pin 2 is ejected by push rod 6, has limited the motion of cylinder body 4, realizes upper locking.
During release, the articulating point of first connecting rod 8 and second connecting rod 9 applies the Vertical direction tensile force f, as long as articulating point moves to more than the horizontal axis, push rod 6 can move right under spring 1 effect, upper lock pin 2 retractions, and uplock is removed, and sees Fig. 2 (b).
When cylinder body 4 moves to when the next, the next lock pin 3 is ejected by push rod 6, is stuck in the annular groove of cylinder body 4, and cylinder body 4 is locked in the next, and external force can't release, sees Fig. 2 (c).When needing release, to pressurized strut input high pressure oil/gas, pressure overcomes spring force, drives push rod 6 to left movement, the next lock pin 3 retractions, but cylinder body 4 unrestricted motions, and down lock is removed.When movement of cylinder block when upper; First connecting rod 7, second connecting rod 8, third connecting rod 9 gravity capable of using automatically reset; Also can torsion spring be installed at third connecting rod 9 places, utilize torsion spring elastic force to make first connecting rod 7, second connecting rod 8, third connecting rod 9 be returned to upper lock state.
For embodiment of the present invention better, above-mentioned push rod 6 is provided with and can makes upper lock pin 2 and the next lock pin 3 produce the device of relative movement, and the device that present embodiment is taked is the boss 31 on band inclined-plane.
Further, above-mentioned upper lock pin 2 is provided with the inclined-plane 42 that matches with the boss inclined-plane with the next lock pin 3.
Further; In order to prevent that upper lock pin 2 from rotating in the radial hole 51 of piston 5 with the next lock pin 3; Upper lock pin 2 is provided with ball-and-socket 41 with the next lock pin 3, in the ball-and-socket 41 steel ball is set, and is provided with the groove that cooperates with steel ball in the radial hole 51; Steel ball can only radially be slided in the groove of radial hole 51, and then guarantee that upper lock pin 2 does not rotate at radial hole 51 with the next lock pin 3.
Claims (5)
1. pressurized strut locking position and release mechanism, it is characterized in that: comprise cylinder body [4], piston [5], push rod [6], push rod [6] is installed in the piston [5]; Push rod [6] one ends are provided with cavity; Spring [1] wherein is installed, and the other end is provided with porose, is connected with the first connecting rod that has cylinder boss [7]; First connecting rod [7], second connecting rod [8], third connecting rod [9] are hinged successively, third connecting rod [9] the other end relative fixed; The end that piston [5] is gone up near push rod [6] cavity is provided with the radial hole [51] that is used to install upper lock pin [2] and the next lock pin [3], and radial hole [51] is uniformly distributed along the circumference, and radial hole is provided with groove in [51]; Be provided with the annular groove [10] that the next lock pin [3] is snapped in the cylinder body [4].
2. pressurized strut locking position according to claim 1 and release mechanism is characterized in that: push rod [6] is provided with and can makes upper lock pin [2] and the next lock pin [3] produce the device of relative movement.
3. pressurized strut locking position according to claim 2 and release mechanism is characterized in that: install the boss [31] into the band inclined-plane.
4. pressurized strut locking position according to claim 3 and release mechanism is characterized in that: upper lock pin [2] and the next lock pin [3] are provided with the inclined-plane [42] that matches with the boss inclined-plane.
5. pressurized strut locking position according to claim 1 and release mechanism is characterized in that: upper lock pin [2] and the next lock pin [3] are provided with ball-and-socket [41], and ball-and-socket is provided with steel ball in [41], are provided with the groove that cooperates with steel ball in the radial hole [51].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104317233A CN102518621A (en) | 2011-12-20 | 2011-12-20 | Actuator cylinder position locking and unlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104317233A CN102518621A (en) | 2011-12-20 | 2011-12-20 | Actuator cylinder position locking and unlocking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102518621A true CN102518621A (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104317233A Pending CN102518621A (en) | 2011-12-20 | 2011-12-20 | Actuator cylinder position locking and unlocking mechanism |
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| CN (1) | CN102518621A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389011A (en) * | 2013-07-11 | 2013-11-13 | 南京航空航天大学 | Shape memory alloy spring-actuated controlled unlocking device |
| CN103523214A (en) * | 2012-07-06 | 2014-01-22 | 哈尔滨飞机工业集团有限责任公司 | Internal locking device of actuating cylinder |
| CN103644782A (en) * | 2013-11-28 | 2014-03-19 | 江西洪都航空工业集团有限责任公司 | Gunpowder actuator unlocking device |
| CN103899598A (en) * | 2014-03-25 | 2014-07-02 | 东南大学 | Manual emergency unlocking device and method for internal-expansion locking cylinder |
| CN104718384A (en) * | 2012-10-18 | 2015-06-17 | 藤仓橡胶工业株式会社 | Air cylinder device with fall prevention mechanism, and fall prevention mechanism for air cylinder device |
| EP2912268A4 (en) * | 2012-10-23 | 2016-10-12 | Halliburton Energy Services Inc | Selectable size sampling apparatus, systems, and methods |
| CN109114066A (en) * | 2018-08-27 | 2019-01-01 | 中国飞机强度研究所 | A kind of pressurized strut |
| CN109599275A (en) * | 2018-11-05 | 2019-04-09 | 兰州万里航空机电有限责任公司 | Anti- card locking device for aviation operation mechanism |
| CN109649664A (en) * | 2018-11-29 | 2019-04-19 | 中国航空工业集团公司沈阳飞机设计研究所 | Couple release device |
| CN110282249A (en) * | 2018-03-19 | 2019-09-27 | 玄创半导体设备（上海）有限公司 | A kind of equipment end photoresist bottle with bottle cap lock |
| CN110567327A (en) * | 2019-08-08 | 2019-12-13 | 四川航天川南火工技术有限公司 | Circumferential unlocking structure of gas piston |
Citations (5)
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| US3699850A (en) * | 1971-10-27 | 1972-10-24 | Gen Motors Corp | Fluid actuator with lock and cushion |
| US4784037A (en) * | 1982-12-28 | 1988-11-15 | The United States Of America As Represented By The United States Department Of Energy | Locking apparatus for gate valves |
| US7216581B2 (en) * | 2004-01-16 | 2007-05-15 | The Boeing Company | Piston locking actuator |
| CN201661543U (en) * | 2010-02-09 | 2010-12-01 | 厦门大学 | Extending position self-locking type hydraulic cylinder |
| CN101613064B (en) * | 2009-07-17 | 2011-12-07 | 三一汽车制造有限公司 | Construction machinery and weight counterbalance locking device thereof |
-
2011
- 2011-12-20 CN CN2011104317233A patent/CN102518621A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3699850A (en) * | 1971-10-27 | 1972-10-24 | Gen Motors Corp | Fluid actuator with lock and cushion |
| US4784037A (en) * | 1982-12-28 | 1988-11-15 | The United States Of America As Represented By The United States Department Of Energy | Locking apparatus for gate valves |
| US7216581B2 (en) * | 2004-01-16 | 2007-05-15 | The Boeing Company | Piston locking actuator |
| CN101613064B (en) * | 2009-07-17 | 2011-12-07 | 三一汽车制造有限公司 | Construction machinery and weight counterbalance locking device thereof |
| CN201661543U (en) * | 2010-02-09 | 2010-12-01 | 厦门大学 | Extending position self-locking type hydraulic cylinder |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523214A (en) * | 2012-07-06 | 2014-01-22 | 哈尔滨飞机工业集团有限责任公司 | Internal locking device of actuating cylinder |
| CN104718384A (en) * | 2012-10-18 | 2015-06-17 | 藤仓橡胶工业株式会社 | Air cylinder device with fall prevention mechanism, and fall prevention mechanism for air cylinder device |
| EP2912268A4 (en) * | 2012-10-23 | 2016-10-12 | Halliburton Energy Services Inc | Selectable size sampling apparatus, systems, and methods |
| US10294783B2 (en) | 2012-10-23 | 2019-05-21 | Halliburton Energy Services, Inc. | Selectable size sampling apparatus, systems, and methods |
| CN103389011A (en) * | 2013-07-11 | 2013-11-13 | 南京航空航天大学 | Shape memory alloy spring-actuated controlled unlocking device |
| CN103644782A (en) * | 2013-11-28 | 2014-03-19 | 江西洪都航空工业集团有限责任公司 | Gunpowder actuator unlocking device |
| CN103899598A (en) * | 2014-03-25 | 2014-07-02 | 东南大学 | Manual emergency unlocking device and method for internal-expansion locking cylinder |
| CN103899598B (en) * | 2014-03-25 | 2016-03-02 | 东南大学 | Internal expansion type locking cylinder manual-operated emergent tripper and method |
| CN110282249A (en) * | 2018-03-19 | 2019-09-27 | 玄创半导体设备（上海）有限公司 | A kind of equipment end photoresist bottle with bottle cap lock |
| CN109114066A (en) * | 2018-08-27 | 2019-01-01 | 中国飞机强度研究所 | A kind of pressurized strut |
| CN109114066B (en) * | 2018-08-27 | 2020-02-07 | 中国飞机强度研究所 | Actuating cylinder |
| CN109599275A (en) * | 2018-11-05 | 2019-04-09 | 兰州万里航空机电有限责任公司 | Anti- card locking device for aviation operation mechanism |
| CN109599275B (en) * | 2018-11-05 | 2020-01-07 | 兰州万里航空机电有限责任公司 | Anti-sticking locking device for aviation operating mechanism |
| CN109649664A (en) * | 2018-11-29 | 2019-04-19 | 中国航空工业集团公司沈阳飞机设计研究所 | Couple release device |
| CN109649664B (en) * | 2018-11-29 | 2022-04-01 | 中国航空工业集团公司沈阳飞机设计研究所 | Coupling release device |
| CN110567327A (en) * | 2019-08-08 | 2019-12-13 | 四川航天川南火工技术有限公司 | Circumferential unlocking structure of gas piston |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |