CN113936933A - Actuator signal switch trigger mechanism - Google Patents
Actuator signal switch trigger mechanism Download PDFInfo
- Publication number
- CN113936933A CN113936933A CN202111341763.9A CN202111341763A CN113936933A CN 113936933 A CN113936933 A CN 113936933A CN 202111341763 A CN202111341763 A CN 202111341763A CN 113936933 A CN113936933 A CN 113936933A
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- Prior art keywords
- switch
- steel ball
- rod
- piston rod
- necking
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- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 230000033001 locomotion Effects 0.000 claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 230000000670 limiting effect Effects 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
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- Actuator (AREA)
Abstract
The actuator signal switch triggering mechanism disclosed by the invention is compact and simple in structure and high in reliability. The invention is realized by the following technical scheme: a return spring is assembled on a spring seat at the tail end of the switch touch ejector rod, a push rod, a driving steel ball and a guiding steel ball are assembled in radial through holes of an end cover stand column, are assembled in grooves at two ends of the push rod and respectively contact the sliding surface of a conical necking down of the switch touch ejector rod and the outer surface of the small diameter of a piston rod. The piston rod extends out of the necking conical surface to the right to be contacted with the guide steel ball, the push rod is pushed to enable the drive steel ball to extrude the switch to touch the sliding surface of the ejector rod to enable the switch to move leftwards, the switch touches a contact trigger switch at the end part of the ejector rod, the switch is connected with an output signal, and the detection circuit sends a displacement signal synchronized by the control mechanism; the piston rod moves leftwards and retracts, the guide steel ball is separated from the necking conical surface of the piston rod, the switch touches the ejector rod to move rightwards and reset under the reset spring force, the ejector rod is separated from the switch, the signal is disconnected, the reciprocating motion is repeated in such a way, and the on-off control of the reciprocating motion direction of the actuator is realized.
Description
Technical Field
The invention relates to a trigger mechanism of an actuator signal switch, belonging to the technical field of mechanical engineering for limiting the movement limit position of mechanical equipment. The actuator with the terminal signal switch triggering mechanism is mainly used for hydraulic and pneumatic system actuating mechanisms in the industries of aviation, aerospace, ships, vehicles, large engineering equipment and the like.
Background
An Actuator (Actuator) is a common type of Actuator in a hydropneumatic transmission system, and is a key component for applying a control force to a control object according to a determined control law. The working medium generally comprises a liquid and a gas. In recent years, on the basis of conventional hydraulic actuators, pneumatic actuators and electromagnetic actuators, various intelligent actuators, such as piezoelectric ceramic actuators, piezoelectric thin film actuators, electrostrictive actuators, magnetostrictive actuators, shape memory alloy actuators, electrorheological fluid actuators, and the like, have been developed. The actuator converts hydraulic energy or air pressure energy into mechanical energy for operating the movable part, and can also be used for performing servo control through a displacement sensor or a travel switch of a product according to requirements, and the servo control is used for executing commands of a main controller and controlling the speed, the direction, the displacement, the force and the like of a load. The actuators are basically classified into two types, a reciprocating linear actuator and a reciprocating swing type actuator. The reciprocating linear actuator is widely applied to movable parts such as retraction and release of landing gears, flaps and speed reducers, adjustment of tail nozzles and air inlet cones and the like on modern airplanes. Besides external action and self-locking, the actuator is generally required to have a function of outputting a signal when a piston rod moves to a position. The actuator is typically externally fitted with a micro-switch or proximity switch which is connected to an external power source. In the switch trigger mechanism at the extending end of the actuator, a rotating shaft type trigger mechanism is generally used, and the rotating shaft is arranged in the actuator and is pushed by a piston rod to rotate so as to drive an external mechanism to trigger the switch, so that the output of a voltage signal or an induction signal is realized. The outside of the actuator is provided with a return spring, the rotating shaft is reset by the return spring after the piston rod retracts, and the switch signal is disconnected. The mechanism has the problems of complex structure, large occupied space, difficult part processing, more parts, more sealing elements, large leakage hidden danger and the like.
Disclosure of Invention
The invention aims to solve the problems in the prior art and aims to provide an actuator with a switch triggering mechanism function, which has the advantages of compact and simple structure, high reliability and good operability and has a limiting effect.
The above object of the present invention can be achieved by a trigger mechanism for an actuator signal switch, comprising: the assembly is at the variable cross section piston rod 17 of making reciprocating motion in working cylinder 1, the encapsulation is at the end cover 16 of 1 tip of working cylinder, set up in end cover 16 afterbody top, pass auricle 4, with the parallel signal switch 2 of 1 axis of working cylinder, along the stand 8 that end cover 16 radially stretches out, pass stand 8 with signal switch 2 is coaxial and the switch touch ejector pin 11 that corresponds in opposite directions, its characterized in that: a conical necking and a return spring 10 assembled on a tail end spring seat are arranged on a rod body of a switch touch ejector rod 11, a push rod 14, a driving steel ball 12 and a guiding steel ball 15 which are assembled in grooves at two ends of the push rod 14 and respectively contact the sliding surface of the conical necking and the outer surface of the small diameter of a piston rod 17 are assembled in a radial through hole 13 below the conical necking, the piston rod 17 extends rightwards and moves until the conical surface of the necking is contacted with the guiding steel ball 15, then the guiding steel ball 15 is pushed to generate upward movement thrust, the driving steel ball 12 is pushed by the push rod 14 to transmit the force to the sliding surface of the conical necking of the switch touch ejector rod 11, so that the sliding surface of the conical necking is moved leftwards, a contact touch signal switch 2 at the end part of the switch touch ejector rod 11 is driven to output a position signal of the piston rod 17, and a detection circuit sends a displacement signal synchronized by a control mechanism after the signal switch 2 is triggered and switched on; the piston rod 17 moves leftwards and retracts, the guide steel ball 15 is separated from the necking conical surface of the piston rod 17, the switch touch ejector rod 11 moves rightwards and resets under the force of the reset spring 10, and the switch is separated from the signal switch 2. The reciprocating motion is carried out in such a circulating way, and the switch control of the reciprocating motion direction of the actuator motion mechanism is realized.
Compared with the prior art, the invention has the following beneficial effects.
The invention adopts the end cover 16 encapsulated at the end part of the working cylinder barrel 1, the signal switch 2 which is arranged above the tail part of the end cover 16, passes through the lug 4 and is parallel to the axis of the working cylinder barrel 1, the upright post 8 which extends out along the radial direction of the end cover 16, the switch touch ejector rod 11 which passes through the upright post 8 and is coaxial and opposite to the signal switch 2, and the reset spring 10 which is assembled on the spring seat at the tail end. The piston rod 17 extends out, before the necking conical surface contacts the guide steel ball 15, the guide steel ball 15 contacts the small-diameter surface of the piston rod 17, the radial action of the piston rod 17 is avoided, the axial thrust along the radial through hole 13 is not generated, and the mechanism does not act; after the necking conical surface of the piston rod 17 is contacted with the guide steel ball 15, the guide steel ball 15 is pushed to generate upward moving thrust, the push rod 14 pushes the driving steel ball 12 to transmit the force to the conical necking sliding surface of the switch touch ejector rod 11, so that the conical necking sliding surface moves leftwards, the switch is driven to touch the contact touch signal switch 2 at the end part of the ejector rod 11 to output a piston rod 17 in-place signal until the guide steel ball 15 moves to the large-diameter outer surface of the piston rod 17, and the reliability is high and the operability is good.
The invention adopts a conical neck formed on a rod body of a switch touch ejector rod 11 and a return spring 10 assembled on a spring seat at the tail end, the end part of the switch touch ejector rod 11 is provided with a limit block 5, a push rod 14 is assembled in a radial through hole 13 below the conical neck, and a driving steel ball 12 and a guide steel ball 15 are assembled in a push rod groove and respectively contact the sliding surface of the conical neck and the outer surface of the small diameter of a piston rod 17, the limit of the limit block 5 ensures that a trigger mechanism is in a free state, the sliding surface of the conical neck of the switch touch ejector rod 11 is not in contact with the driving steel ball 12 to have no acting force on the push rod 14 and the guide steel ball 15, the guide steel ball 15 is only in slight contact with the outer surface of the small diameter of the piston rod 17, the surface of the piston rod 17 cannot be extruded and damaged, and the reliability is good.
According to the invention, the piston rod 17 extends rightwards to move until the necking conical surface is contacted with the guide steel ball 15, then the guide steel ball 15 is pushed to generate upward movement thrust, the push rod 14 pushes the driving steel ball 12 to transmit force to the conical necking inclined surface of the switch touch ejector rod 11, so that the force moves leftwards, the switch touch ejector rod 11 end contact touch signal switch 2 is driven to output the in-place signal of the piston rod 17, the transmission efficiency is high, the response speed is high, the movement mechanism can be prevented from falling out of the set movement range, and the safety is high. The motion stroke of the switch touching the ejector rod 11 can be adjusted by adjusting one or more of the difference between the outer diameters of the small diameter and the large diameter of the piston rod 17, the diameter of the driving steel ball 12, the diameter of the guide steel ball 15 and the sliding surface angle of the conical neck of the switch touching ejector rod 11.
All parts of the trigger mechanism are mechanically connected, no special limitation requirement exists, and the trigger mechanism can be widely applied to hydraulic, pneumatic or electric equipment with in-place signal output requirements.
Drawings
FIG. 1 is a cross-sectional view of an actuator signal switch triggering mechanism of the present invention.
Fig. 2 is a top view of fig. 1.
In the figure: the device comprises a working cylinder barrel 1, a signal switch 2, a nut 3, a lug 4, a limiting block 5, a plug cap 6, a plug cap 7, a stand column 8, an axial through hole 9, a reset spring 10, a switch 11 touch ejector rod 12, a driving steel ball 13, a radial through hole, a push rod 14, a guide steel ball 15, an end cover 16 and a piston rod 17.
The invention is further illustrated with reference to the following figures and examples, without thereby limiting the scope of the invention to the described examples. All such concepts are intended to be within the scope of the present disclosure and patent.
Detailed Description
Refer to fig. 1 and 2. In the embodiments described below, an actuator signal switch triggering mechanism includes: the assembly is at the variable cross section piston rod 17 of making reciprocating motion in working cylinder 1, the encapsulation is at the end cover 16 of 1 tip of working cylinder, set up in end cover 16 afterbody top, pass auricle 4, with the parallel signal switch 2 of 1 axis of working cylinder, along the stand 8 that end cover 16 radially stretches out, pass stand 8 with signal switch 2 is coaxial and the switch touch ejector pin 11 that corresponds in opposite directions, its characterized in that: a conical necking and a return spring 10 assembled on a tail end spring seat are arranged on a rod body of a switch touch ejector rod 11, a push rod 14, a driving steel ball 12 and a guiding steel ball 15 which are assembled in grooves at two ends of the push rod 14 and respectively contact the sliding surface of the conical necking and the outer surface of the small diameter of a piston rod 17 are assembled in a radial through hole 13 below the conical necking, the piston rod 17 extends rightwards and moves until the conical surface of the necking is contacted with the guiding steel ball 15, then the guiding steel ball 15 is pushed to generate upward movement thrust, the driving steel ball 12 is pushed by the push rod 14 to transmit the force to the sliding surface of the conical necking of the switch touch ejector rod 11, so that the sliding surface of the conical necking is moved leftwards, a contact touch signal switch 2 at the end part of the switch touch ejector rod 11 is driven to output a position signal of the piston rod 17, and a detection circuit sends a displacement signal synchronized by a control mechanism after the signal switch 2 is triggered and switched on; the piston rod 17 moves leftwards and retracts, the guide steel ball 15 is separated from the necking conical surface of the piston rod 17, the switch touch ejector rod 11 moves rightwards and resets under the force of the reset spring 10, and the switch is separated from the signal switch 2. The reciprocating motion is carried out in such a circulating way, and the switch control of the reciprocating motion direction of the actuator motion mechanism is realized.
A variable cross-section piston rod 17 which does reciprocating motion is assembled in the working cylinder barrel 1, an end cover 16 is packaged at the end part of the working cylinder barrel 1, and a signal switch 2 is fixed in a lug 4 hole above the tail part of the end cover 16 through a nut 3 and is parallel to the axis of the working cylinder barrel 1.
The vertical column 8 radially extends out of an end cover 16, a switch touch ejector rod 11 is assembled in a hole of the vertical column 8 and is coaxial and opposite to the signal switch 2, a conical necking and a return spring 10 assembled on a tail end spring seat are manufactured on a rod body of the switch touch ejector rod 11, a push rod 14, a driving steel ball 12 and a guiding steel ball 15 are assembled in grooves at two ends of the push rod 14 and respectively contact a sliding surface of the conical necking and a small-diameter outer surface of a piston rod 17, and the radial through hole 13 below the conical necking is internally provided with the push rod 14.
After the piston rod 17 extends rightward and moves until the necking conical surface is contacted with the guide steel ball 15, the guide steel ball 15 is pushed to generate upward movement thrust, the push rod 14 pushes the drive steel ball 12, the force is transmitted to the conical necking sliding surface of the switch touch ejector rod 11, the switch is driven to move leftward, the switch touches the contact touch signal switch 2 at the end part of the ejector rod 11, and the switch is switched on to output signals.
The piston rod 17 moves leftwards and retracts, the guide steel ball 15 is separated from the necking conical surface of the piston rod 17, the switch touch ejector rod 11 moves rightwards and resets under the force of the reset spring 10, the switch is separated from the signal switch 2, the signal is disconnected, the switch touch ejector rod 11 reaches the limit position and is limited by the limiting block 5, and the mechanism resets.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. Alternatives and modifications, the scope of the invention being defined by the appended claims and equivalents thereof.
Claims (5)
1. An actuator signal switch triggering mechanism comprising: the assembly is at variable cross section piston rod (17) of making reciprocating motion in working cylinder (1), encapsulates end cover (16) at working cylinder (1) tip, sets up in end cover (16) afterbody top, passes auricle (4), signal switch (2) parallel with working cylinder (1) axis, along stand (8) that end cover (16) radially stretched out, pass stand (8) with signal switch (2) are coaxial and the switch that corresponds in opposite directions touches ejector pin (11), its characterized in that: a conical necking and a return spring (10) assembled on a tail end spring seat are manufactured on a rod body of a switch touch ejector rod (11), a push rod (14), a driving steel ball (12) and a guiding steel ball (15) which are assembled in grooves at two ends of the push rod (14) and respectively contact with a sliding surface of the conical necking and a small-diameter outer surface of a piston rod (17) are assembled in a radial through hole (13) below the conical necking, the piston rod (17) extends rightwards and moves until a necking conical surface contacts with the guiding steel ball (15), the guiding steel ball (15) is pushed to generate thrust which moves upwards, the driving steel ball (12) is pushed by the push rod (14), the force is transmitted to the sliding surface of the conical necking of the switch touch ejector rod (11), the sliding surface of the conical necking of the switch touch ejector rod (11) is made to move leftwards, a contact at the end part of the switch touch ejector rod (11) is driven to output an in-place signal of the piston rod (17), and the signal switch (2) is triggered and switched on, the detection circuit sends out a displacement signal synchronized by the control mechanism; the piston rod (17) moves leftwards and retracts, the guide steel ball (15) is separated from the necking conical surface of the piston rod (17), the switch touch ejector rod (11) moves rightwards under the force of the reset spring (10) to reset and is separated from the signal switch (2), and the reciprocating motion is repeated in such a cycle, so that the on-off control of the reciprocating motion direction of the actuator motion mechanism is realized.
2. An actuator signal switch trigger mechanism as defined in claim 1, wherein: a variable cross-section piston rod (17) which moves in a reciprocating mode is assembled in the working cylinder barrel (1), an end cover (16) is packaged at the end of the working cylinder barrel (1), and the signal switch (2) is fixed in a lug piece (4) hole above the tail of the end cover (16) through a nut (3) and is parallel to the axis of the working cylinder barrel (1).
3. An actuator signal switch trigger mechanism as defined in claim 1, wherein: the vertical column (8) radially extends out of an end cover (16), a switch touch ejector rod (11) is assembled in a hole of the vertical column (8) and is coaxial with and opposite to the signal switch (2), a conical necking down and a return spring (10) assembled on a tail end spring seat are manufactured on a rod body of the switch touch ejector rod (11), a push rod (14) and a driving steel ball (12) and a guiding steel ball (15) which are assembled in grooves at two ends of the push rod (14) and respectively contact a sliding surface of the conical necking down and the small-diameter outer surface of a piston rod (17) are assembled in a radial through hole (13) below the conical necking down.
4. An actuator signal switch trigger mechanism as defined in claim 1, wherein: after a piston rod (17) stretches out rightward and moves to a necking conical surface to be contacted with a guide steel ball (15), the guide steel ball (15) is pushed to generate upward-moving thrust, the drive steel ball (12) is pushed through a push rod (14), force is transmitted to a conical necking sliding surface of a switch touch ejector rod (11), the switch is driven to move leftward, the switch touches a contact touch signal switch (2) at the end part of the ejector rod (11), and the switch is switched on to output signals.
5. An actuator signal switch trigger mechanism as defined in claim 1, wherein: the piston rod (17) moves leftwards and retracts, the guide steel ball (15) is separated from the necking conical surface of the piston rod (17), the switch touch ejector rod (11) moves rightwards under the force of the reset spring (10) to reset, the switch is separated from the signal switch (2), the signal is disconnected, the switch touch ejector rod (11) reaches the limit position and is limited by the limiting block (5), and the mechanism resets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111341763.9A CN113936933A (en) | 2021-11-12 | 2021-11-12 | Actuator signal switch trigger mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111341763.9A CN113936933A (en) | 2021-11-12 | 2021-11-12 | Actuator signal switch trigger mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN113936933A true CN113936933A (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111341763.9A Pending CN113936933A (en) | 2021-11-12 | 2021-11-12 | Actuator signal switch trigger mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN113936933A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669986A (en) * | 2022-04-25 | 2022-06-28 | 佛山市和阳精密金属制品有限公司 | Guarantee intelligent feedway and lathe of upwards orientation of steel wire nut installation handle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080011113A1 (en) * | 2006-07-12 | 2008-01-17 | Thermotion Corporation | Motor-driven actuator |
| CN112636528A (en) * | 2020-12-08 | 2021-04-09 | 四川凌峰航空液压机械有限公司 | Redundancy emergency function electromechanical actuator |
| CN216389094U (en) * | 2021-11-12 | 2022-04-26 | 四川凌峰航空液压机械有限公司 | Telescopic actuator tail end signal trigger switch |
-
2021
- 2021-11-12 CN CN202111341763.9A patent/CN113936933A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080011113A1 (en) * | 2006-07-12 | 2008-01-17 | Thermotion Corporation | Motor-driven actuator |
| CN112636528A (en) * | 2020-12-08 | 2021-04-09 | 四川凌峰航空液压机械有限公司 | Redundancy emergency function electromechanical actuator |
| CN216389094U (en) * | 2021-11-12 | 2022-04-26 | 四川凌峰航空液压机械有限公司 | Telescopic actuator tail end signal trigger switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669986A (en) * | 2022-04-25 | 2022-06-28 | 佛山市和阳精密金属制品有限公司 | Guarantee intelligent feedway and lathe of upwards orientation of steel wire nut installation handle |
| CN114669986B (en) * | 2022-04-25 | 2023-09-01 | 佛山市和阳精密金属制品有限公司 | Intelligent feeding device and machine tool for ensuring upward orientation of steel wire nut mounting handle |
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