CN113883127A - Efficient repeatable explosion linear actuator and actuating method thereof - Google Patents
Efficient repeatable explosion linear actuator and actuating method thereof Download PDFInfo
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- CN113883127A CN113883127A CN202111232709.0A CN202111232709A CN113883127A CN 113883127 A CN113883127 A CN 113883127A CN 202111232709 A CN202111232709 A CN 202111232709A CN 113883127 A CN113883127 A CN 113883127A
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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
- F15B15/19—Pyrotechnical actuators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/38—Adjustment of complete wings or parts thereof
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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
- F15B15/26—Locking mechanisms
- F15B2015/268—Fluid supply for locking or release independent of actuator pressurisation
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Abstract
A high-efficiency repeatable explosion linear actuator and an actuating method thereof relate to the technical field of aircraft deformation wing driving. The invention solves the problems of low response speed, small output force, large volume and limited driving distance of the conventional aircraft deformation wing driver. The two airflow guides are respectively arranged on two sides of a piston cylinder, the lower ends of a rod-side air passage and a rodless side air passage are respectively provided with an air passage air vent a and an air passage air vent b, the two airflow guides are respectively connected with the air passage air vent a and the air passage air vent b, the other ends of the two airflow guides are respectively provided with an electromagnetic switch valve, the outer wall of each airflow guide is provided with a plurality of air inlet pipelines, each air inlet pipeline is respectively provided with a one-way valve, and one end of each air inlet pipeline is respectively provided with a gas generator. The invention has the advantages of light weight, small volume, large output, quick response and repeatable actuation, and can lead the deformation wing to be quickly deformed to improve the flight performance.
Description
Technical Field
The invention relates to the technical field of aircraft deformation wing driving, in particular to a high-efficiency repeatable explosion linear actuator and an actuating method thereof.
Background
The research of the aircraft morphing wing technology faces great challenges. Especially for hypersonic aircrafts, in order to improve maneuverability, flexibility and battlefield viability, deformation functions such as overturning, stretching and the like need to be realized under the condition of overcoming large dynamic pressure load within hundred milliseconds, and the wing surface space is narrow and the quality constraint is severe. The existing driver has the disadvantages of low response speed, small output force, large volume and limited driving distance, so the research on a high-power-density and high-response repeatable driving method needs to be carried out urgently, and the contradiction between the ultimate size envelope and the wing rudder high-response and high-power output repeatable deformation is solved.
Disclosure of Invention
The invention aims to solve the problems of low response speed, small output force, large volume and limited driving distance of the conventional aircraft deformation wing driver, and further provides a high-efficiency repeatable explosion linear actuator and an actuating method thereof.
The technical scheme of the invention is as follows:
a high-efficiency repeatable explosion linear actuator comprises a piston cylinder body, an air guide sealing screw 10, two electromagnetic switch valves 3, two air flow guides 4, two locking mechanisms, a plurality of gas generators 1 and a plurality of check valves 2, wherein the piston cylinder body comprises a piston cylinder 5, a piston rod 11, a piston 12 and a pin 13 for the piston, the piston cylinder 5 comprises a rod side air passage and a rodless side air passage which are integrally formed, the rod side air passage and the rodless side air passage are arranged side by side, the piston 12 is arranged in the rod side air passage, the piston is in sliding sealing fit with a rod side cylinder body of the rod side air passage, the piston rod 11 is inserted in the rod side air passage, the lower end of the piston rod 11 is detachably connected with the piston 12 through the pin 13 for the piston, and the upper end of the piston rod 11 extends out of the rod side air passage and is in sliding sealing fit with an upper end cover of the rod side air passage; the two airflow guides 4 are respectively and symmetrically arranged at the left side and the right side of the piston cylinder 5, the lower end of the rod-side air passage is provided with an air passage vent hole a, the lower end of the rodless side air passage is provided with an air passage vent hole b, one end of each airflow guide 4 close to the piston cylinder 5 is respectively and hermetically connected with the air passage vent hole a and the air passage vent hole b, one end of each airflow guide 4 far away from the piston cylinder 5 is respectively provided with an electromagnetic switch valve 3, the outer wall of each airflow guide 4 is uniformly provided with a plurality of air inlet pipelines along the length direction, each air inlet pipeline is respectively provided with a one-way valve 2, one end of each air inlet pipeline far away from the airflow guide 4 is respectively provided with a gas generator 1, the cylinder body at the upper end of the rod-side air passage close to the rodless side air passage is provided with an air passage vent hole c, and the cylinder body at the upper end of the rodless side air passage far away from the rod-side air passage is provided with a sealing screw mounting hole corresponding to the air passage vent hole c, the air guide sealing screw 10 is sequentially inserted into the sealing screw mounting hole and the air passage vent c from outside to inside, the groove of the air guide sealing screw 10 points downwards, the inner cavity of the rod-side air passage is communicated with the inner cavity of the rodless side air passage through the groove of the air guide sealing screw 10, a waist-shaped lock cavity 23 corresponding to the air hole of the air guide sealing screw 10 is processed on the end surface of one side, close to the rodless side air passage, of the lower end of the piston rod 11, a waist-shaped lock cavity 23 corresponding to the air hole of the left air flow guider 4 is processed on the end surface of one side, far away from the rodless side air passage, of the lower end of the piston 12, and the two locking mechanisms are respectively arranged inside the two waist-shaped lock cavities 23.
Further, each locking mechanism comprises a lock pin 18, an adaptive guide nail 19 and a spring 20, one end of the adaptive guide nail 19 is slidably inserted into an inner hole of the lock pin 18, the adaptive guide nail 19 is rotatably installed in a kidney-shaped lock cavity 23 on the piston 12 or the piston rod 11, the spring 20 is installed between the lock pin 18 and the adaptive guide nail 19, and the other end of the adaptive guide nail 19 is matched with an air hole of the air guide sealing screw 10 or an air hole of the left air flow guider 4.
Further, the rod side air passage comprises a rod side cylinder body, a lower end cover 6 and an upper end cover 7, the rod side cylinder body is of a rectangular tubular structure, the lower end cover 6 is installed at the lower end of the rod side cylinder body of the piston cylinder 5, and the upper end cover 7 is installed at the upper end of the rod side cylinder body of the piston cylinder 5.
Further, the rodless side air passage comprises a rodless side cylinder body, a lower sealing screw 8 and an upper sealing screw 9, the rodless side cylinder body is of a rectangular tubular structure, a lower threaded hole is formed in the lower end of the rodless side cylinder body, the lower sealing screw 8 is spirally mounted at the lower end of the rodless side cylinder body of the piston cylinder 5, an upper threaded hole is formed in the upper end of the rodless side cylinder body, and the upper sealing screw 9 is spirally mounted at the upper end of the rodless side cylinder body of the piston cylinder 5.
Furthermore, a left internal threaded hole is formed in the side wall of the lower end of the rod-containing side air passage, a right internal threaded hole is formed in the side wall of the lower end of the rodless side air passage, external threads are machined at one end, close to the piston cylinder 5, of each air flow guider 4 respectively, and the two air flow guiders 4 are in threaded connection with the rod-containing side air passage and the rodless side air passage respectively.
Further, the piston sealing ring device further comprises a piston sealing ring 15 and two piston guide belts 14, two piston guide grooves are sequentially processed in the upward circumferential direction of the outer cylindrical surface of the piston 12 from top to bottom, the two piston guide belts 14 are respectively installed in the two piston guide grooves on the upper portion and the lower portion of the piston 12, a piston sealing groove is processed on the piston 12 between the two piston guide grooves, and the piston sealing ring 15 is installed in a piston sealing groove in the middle of the piston 12.
Further, the piston rod sealing device further comprises a piston rod sealing ring 17 and two piston rod guide belts 16, an assembly hole matched with the piston rod 11 is formed in the center of the upper end cover 7, two piston rod guide grooves are sequentially formed in the inner cylindrical surface of the upper end cover 7 from top to bottom along the circumferential direction, the two piston rod guide belts 16 are respectively installed in the upper piston rod guide groove and the lower piston rod guide groove of the upper end cover 7, a piston rod sealing groove is formed in the upper end cover between the two piston rod guide grooves, and the piston rod sealing ring 17 is installed in the piston rod sealing groove in the middle of the upper end cover 7.
Further, it includes a rod ear 21 and an ear pin 22, and the upper end of the piston rod 11 is connected to the rod ear 21 through the ear pin 22.
A method for actuating a highly efficient and repeatable explosive linear actuator is realized by the following steps,
step one, setting an initial state of the high-efficiency repeatable explosion linear actuator:
the left electromagnetic switch valve 3 is in a closed state, the right electromagnetic switch valve 3 is in an open state, the piston 12 is attached to the lower end cover 6 and is in a lower limit position, the head of a lock pin 18 at the lower end of the piston 12 is inserted into an air hole of the left air flow guider 4 to limit the movement of the piston 12, and a spring 20 arranged in a waist-shaped lock cavity 23 of the piston 12 limits the movement of the lock pin 18 to realize locking;
step two, setting the extension actuation of the high-efficiency repeatable explosion linear actuator:
one gas generator 1 on the left side is ignited to detonate to generate gas, high-pressure gas flows to an airflow guider 4 through a one-way valve 2 connected with the gas outlet of the gas generator 1, at the moment, the one-way valves 2 connected with the gas outlets of other non-ignited gas generators 1 on the left side are all in a closed state, the high-pressure gas is prevented from influencing the non-ignited gas generators 1, the high-pressure gas pushes a lock pin 18 at the lower end of a piston 12 and a spring 20 to retract into a waist-shaped lock cavity 23 in the lower end of the piston 12 through the gas hole of the airflow guider 4, unlocking is completed, the piston 12 is pushed to move upwards until being attached to an upper end cover 7 to reach an upper limit position, the lock pin 18 at the lower end of the piston rod 11 is pushed by the spring 20 to be inserted into a gas guide sealing screw 10 to realize locking;
step two, setting the contraction actuation of the high-efficiency repeatable explosion linear actuator:
one gas generator 1 on the right side is ignited to detonate to generate gas, high-pressure gas flows to the gas flow guider 4 through the one-way valve 2 connected with the gas outlet of the gas generator 1, at the moment, the one-way valves 2 connected with the gas outlets of other non-ignited gas generators 1 on the right side are all in a closed state, the high-pressure gas is prevented from influencing the non-ignited gas generators 1, the high-pressure gas flows upwards along a rodless side gas passage of the piston cylinder 5 through the gas hole of the gas flow guider 4, the gas passes through the gas hole of the gas guide sealing screw 10 to push the lock pin 18 and the spring 20 to retract into the waist-shaped lock cavity 23 at the lower end of the piston rod 11, unlocking is completed, the piston 12 is further pushed to move downwards until the lower limit position is reached by being attached to the lower end cover 6, and the lock pin 18 at the lower end of the piston 12 is pushed by the spring 20 to be inserted into the gas hole of the gas flow guider 4 to realize locking;
the high-efficiency repeatable explosion linear actuator is repeatedly extended and contracted to actuate, and the high-efficiency repeatable explosion linear actuator is repeatedly reciprocated to actuate.
Compared with the prior art, the invention has the following effects:
1. the invention adopts the gas generator as an energy source, utilizes deflagration airflow generated by the explosion of firer to push the piston to reciprocate, has the characteristics of light weight, small volume, high energy, large output, large gas production, quick response and quick action, and can meet the requirement of installing and outputting the driving force required by deformation of the deformation wing in a narrow space of the deformation wing;
2. compared with common initiating explosive devices, the invention has the advantage of repeated reciprocating linear actuation;
3. according to the invention, the locking mechanism is integrated on the piston, so that the high-efficiency repeatable explosion linear actuator has small volume and mass, and is suitable for being installed and used under the condition that the internal space of the deformation wing is very limited;
4. the invention does not need an additional driver for driving the locking and unlocking actions, the elastic potential energy stored by the spring is used for in-place automatic locking during locking, the gas generator is used for igniting and detonating airflow to push and control unlocking during unlocking, and meanwhile, the spring is compressed, so that repeated locking and unlocking can be realized. The scheme greatly reduces the volume of the locking mechanism, and simultaneously has good synchronism in unlocking and actuating.
Drawings
FIG. 1 is an isometric view of a high efficiency, repeatable explosion linear actuator of the invention;
FIG. 2 is a cross-sectional view of a high efficiency, repeatable explosion linear actuator of the invention;
figure 3 is an isometric view of a piston of a high efficiency, repeatable explosion linear actuator of the invention.
In the figure: 1-a gas generator; 2-a one-way valve; 3-an electromagnetic switch valve; 4-an airflow director; 5, a piston cylinder; 6-lower end cover; 7-upper end cover; 8-lower sealing screw; 9-upper sealing screw; 10-air guide sealing screw; 11-a piston rod; 12-a piston; 13-pins for pistons; 14-piston guide band; 15-piston seal ring; 16-piston rod guide band; 17-piston rod sealing ring; 18-a locking pin; 19-self-adaptive guide pins; 20-a spring; 21-earrings for rods; 22-ear pin for earring; 23-kidney lock chamber.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 3, and the high-efficiency repeatable explosion linear actuator of the embodiment comprises a piston cylinder body, an air guide sealing screw 10, two electromagnetic switch valves 3, two air flow guides 4, the piston cylinder body comprises a piston cylinder 5, a piston rod 11, a piston 12 and a pin 13 for the piston, the piston cylinder 5 comprises a rod side air passage and a rodless side air passage which are integrally formed, the rod side air passage and the rodless side air passage are arranged side by side, the piston 12 is arranged in the rod side air passage, the piston is in sliding sealing fit with a rod side cylinder body of the rod side air passage, the piston rod 11 is inserted in the rod side air passage, the lower end of the piston rod 11 is detachably connected with the piston 12 through the pin 13 for the piston, and the upper end of the piston rod 11 extends out of the rod side air passage and is in sliding sealing fit with an upper end cover of the rod side air passage; the two airflow guides 4 are respectively and symmetrically arranged at the left side and the right side of the piston cylinder 5, the lower end of the rod-side air passage is provided with an air passage vent hole a, the lower end of the rodless side air passage is provided with an air passage vent hole b, one end of each airflow guide 4 close to the piston cylinder 5 is respectively and hermetically connected with the air passage vent hole a and the air passage vent hole b, one end of each airflow guide 4 far away from the piston cylinder 5 is respectively provided with an electromagnetic switch valve 3, the outer wall of each airflow guide 4 is uniformly provided with a plurality of air inlet pipelines along the length direction, each air inlet pipeline is respectively provided with a one-way valve 2, one end of each air inlet pipeline far away from the airflow guide 4 is respectively provided with a gas generator 1, the cylinder body at the upper end of the rod-side air passage close to the rodless side air passage is provided with an air passage vent hole c, and the cylinder body at the upper end of the rodless side air passage far away from the rod-side air passage is provided with a sealing screw mounting hole corresponding to the air passage vent hole c, the air guide sealing screw 10 is sequentially inserted into the sealing screw mounting hole and the air passage vent c from outside to inside, the groove of the air guide sealing screw 10 points downwards, the inner cavity of the rod-side air passage is communicated with the inner cavity of the rodless side air passage through the groove of the air guide sealing screw 10, a waist-shaped lock cavity 23 corresponding to the air hole of the air guide sealing screw 10 is processed on the end surface of one side, close to the rodless side air passage, of the lower end of the piston rod 11, a waist-shaped lock cavity 23 corresponding to the air hole of the left air flow guider 4 is processed on the end surface of one side, far away from the rodless side air passage, of the lower end of the piston 12, and the two locking mechanisms are respectively arranged inside the two waist-shaped lock cavities 23.
The air outlet of the gas generator 1 is connected with the air inlet of the one-way valve 2, the air outlet of the one-way valve 2 is connected with the air inlet of the air inlet pipeline of the airflow guider 4, and the air inlet of the two electromagnetic switch valves 3 is respectively connected with the air outlet of the two airflow guiders 4.
The second embodiment is as follows: referring to fig. 1 to 3, each locking mechanism of the present embodiment includes a lock pin 18, an adaptive guide pin 19, and a spring 20, one end of the adaptive guide pin 19 is slidably inserted into an inner hole of the lock pin 18, the adaptive guide pin 19 is rotatably installed in a kidney-shaped lock cavity 23 on the piston 12 or the piston rod 11, the spring 20 is installed between the lock pin 18 and the adaptive guide pin 19, and the other end of the adaptive guide pin 19 matches with an air hole of the air guide seal screw 10 or an air hole of the left air flow guide 4. So set up, integrate piston 12 and piston rod 11 with locking mechanical system on for high-efficient repeatedly explosive linear actuator volume, quality are little, are fit for installing and use under the very limited condition in deformation wing inner space. The locking and unlocking actions do not need to be driven by an additional driver, the elastic potential energy stored in the spring 20 is used for in-place automatic locking during locking, the gas generator 1 is used for igniting, detonating and pushing air flow to control unlocking during unlocking, and meanwhile, the spring 20 is compressed, so that repeated locking and unlocking can be realized. The volume of the locking mechanism is greatly reduced, and meanwhile unlocking and actuating have good synchronism. Other components and connections are the same as in the first embodiment.
The self-adaptive guide nail 19 of the embodiment is inserted in an inner hole of the lock pin 18 and can slide relatively, the self-adaptive guide nail 19 is installed in a kidney-shaped lock cavity 23 on the piston 12 or the piston rod 11 and can rotate relatively, and the spring 20 is installed between the lock pin 18 and the self-adaptive guide nail 19.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1 and 2, and the rod-side air passage of the present embodiment includes a rod-side cylinder body having a rectangular tubular structure, a lower end cap 6, and an upper end cap 7, the lower end cap 6 being attached to the lower end of the rod-side cylinder body of the piston cylinder 5, and the upper end cap 7 being attached to the upper end of the rod-side cylinder body of the piston cylinder 5. So set up, have the inside sealed chamber that forms of pole side air flue, adopt split type structure dismouting of being convenient for. Other compositions and connections are the same as in the first or second embodiments.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 and 2, and the rodless side air passage of the present embodiment includes a rodless side cylinder body, a lower seal screw 8, and an upper seal screw 9, the rodless side cylinder body has a rectangular tubular structure, a lower threaded hole is formed at a lower end of the rodless side cylinder body, the lower seal screw 8 is screwed to a lower end of the rodless side cylinder body of the piston cylinder 5, an upper threaded hole is formed at an upper end of the rodless side cylinder body, and the upper seal screw 9 is screwed to an upper end of the rodless side cylinder body of the piston cylinder 5. So set up, no inside sealed cavity that forms of pole side gas passage adopts split type structure to be convenient for the dismouting. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: referring to fig. 2, the lower end side wall of the rod-side air passage of the present embodiment is provided with a left internal threaded hole, the lower end side wall of the rodless side air passage is provided with a right internal threaded hole, one end of each air flow guider 4 close to the piston cylinder 5 is respectively provided with an external thread, and the two air flow guiders 4 are respectively in threaded connection with the rod-side air passage and the rodless side air passage. With the arrangement, the airflow guider 4 is connected with the rod-side air passage and the rodless side air passage in a spiral manner, so that the air flow guider is convenient to disassemble, assemble and replace. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: the embodiment is described with reference to fig. 2, and further includes a piston seal ring 15 and two piston guide belts 14, two piston guide grooves are sequentially processed on the outer cylindrical surface of the piston 12 from top to bottom in the circumferential direction, the two piston guide belts 14 are respectively installed in the upper and lower two piston guide grooves of the piston 12, a piston seal groove is processed on the piston 12 between the two piston guide grooves, and the piston seal ring 15 is installed in the piston seal groove in the middle of the piston 12. With this arrangement, the piston guide band 14 and the piston seal ring 15 are provided between the piston 12 and the rod-side cylinder body for the purpose of achieving a sliding seal therebetween. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: the embodiment is described with reference to fig. 2, and further includes a piston rod seal ring 17 and two piston rod guide belts 16, a fitting hole matched with the piston rod 11 is formed in the center of the upper end cover 7, two piston rod guide grooves are sequentially formed in the inner cylindrical surface of the upper end cover 7 from top to bottom along the circumferential direction, the two piston rod guide belts 16 are respectively installed in the two piston rod guide grooves on the upper end cover 7 and the lower end cover, a piston rod seal groove is formed in the upper end cover between the two piston rod guide grooves, and the piston rod seal ring 17 is installed in the piston rod seal groove in the middle of the upper end cover 7. With this arrangement, the piston rod guide band 16 and the piston rod packing 17 are provided between the piston rod 11 and the rod-side cylinder body for the purpose of achieving a sliding seal therebetween. Other compositions and connection relationships are the same as in the first, second, third, fourth, fifth or sixth embodiment.
The specific implementation mode is eight: the present embodiment is described with reference to fig. 1 and 2, and further includes a rod ear 21 and an ear pin 22, and the upper end of the piston rod 11 is connected to the rod ear 21 via the ear pin 22. In this way, the ear ring 21 for rod mounted on the upper end of the piston rod 11 is connected to the deformation wing to provide the deformation wing with the driving force required for deformation. Other compositions and connection relationships are the same as those of embodiment one, two, three, four, five, six or seven.
The specific implementation method nine: the embodiment is described with reference to fig. 1 to 3, and the method for actuating the high-efficiency repeatable explosion linear actuator of the embodiment is realized by the following steps,
step one, setting an initial state of the high-efficiency repeatable explosion linear actuator:
the left electromagnetic switch valve 3 is in a closed state, the right electromagnetic switch valve 3 is in an open state, the piston 12 is attached to the lower end cover 6 and is in a lower limit position, the head of a lock pin 18 at the lower end of the piston 12 is inserted into an air hole of the left air flow guider 4 to limit the movement of the piston 12, and a spring 20 arranged in a waist-shaped lock cavity 23 of the piston 12 limits the movement of the lock pin 18 to realize locking;
step two, setting the extension actuation of the high-efficiency repeatable explosion linear actuator:
one gas generator 1 on the left side is ignited to detonate to generate gas, high-pressure gas flows to an airflow guider 4 through a one-way valve 2 connected with the gas outlet of the gas generator 1, at the moment, the one-way valves 2 connected with the gas outlets of other non-ignited gas generators 1 on the left side are all in a closed state, the high-pressure gas is prevented from influencing the non-ignited gas generators 1, the high-pressure gas pushes a lock pin 18 at the lower end of a piston 12 and a spring 20 to retract into a waist-shaped lock cavity 23 in the lower end of the piston 12 through the gas hole of the airflow guider 4, unlocking is completed, the piston 12 is pushed to move upwards until being attached to an upper end cover 7 to reach an upper limit position, the lock pin 18 at the lower end of the piston rod 11 is pushed by the spring 20 to be inserted into a gas guide sealing screw 10 to realize locking;
step two, setting the contraction actuation of the high-efficiency repeatable explosion linear actuator:
one gas generator 1 on the right side is ignited to detonate to generate gas, high-pressure gas flows to the gas flow guider 4 through the one-way valve 2 connected with the gas outlet of the gas generator 1, at the moment, the one-way valves 2 connected with the gas outlets of other non-ignited gas generators 1 on the right side are all in a closed state, the high-pressure gas is prevented from influencing the non-ignited gas generators 1, the high-pressure gas flows upwards along a rodless side gas passage of the piston cylinder 5 through the gas hole of the gas flow guider 4, the gas passes through the gas hole of the gas guide sealing screw 10 to push the lock pin 18 and the spring 20 to retract into the waist-shaped lock cavity 23 at the lower end of the piston rod 11, unlocking is completed, the piston 12 is further pushed to move downwards until the lower limit position is reached by being attached to the lower end cover 6, and the lock pin 18 at the lower end of the piston 12 is pushed by the spring 20 to be inserted into the gas hole of the gas flow guider 4 to realize locking;
the high-efficiency repeatable explosion linear actuator is repeatedly extended and contracted to actuate, and the high-efficiency repeatable explosion linear actuator is repeatedly reciprocated to actuate. Other compositions and connection relationships are the same as those in the first, second, third, fourth, fifth, sixth, seventh or eighth embodiment.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A high-efficient repeatedly explosive linear actuator which characterized in that: it comprises a piston cylinder body, an air guide sealing screw (10), two electromagnetic switch valves (3), two airflow deflectors (4), two locking mechanisms, a plurality of gas generators (1) and a plurality of one-way valves (2), the piston cylinder body comprises a piston cylinder (5), a piston rod (11), a piston (12) and a pin (13) for the piston, the piston cylinder (5) comprises a rod side air passage and a rodless side air passage which are integrally formed, the rod side air passage and the rodless side air passage are arranged side by side, the piston (12) is arranged in the rod side air passage, the piston is in sliding sealing fit with a rod side cylinder body of the rod side air passage, the piston rod (11) is inserted in the rod side air passage, the lower end of the piston rod (11) is detachably connected with the piston (12) through the pin (13) for the piston, and the upper end of the piston rod (11) extends out of the rod side air passage and is in sliding sealing fit with an upper end cover of the rod side air passage; two air flow director (4) symmetry respectively set up the left and right sides in piston cylinder (5), there is pole side air flue lower extreme processing to have air flue vent a, there is not pole side air flue lower extreme processing to have air flue vent b, two air flow director (4) are close to the one end of piston cylinder (5) respectively with air flue vent a and air flue vent b sealing connection, solenoid switch valve (3) are installed respectively to the one end that piston cylinder (5) were kept away from in two air flow director (4), the outer wall of every air flow director (4) evenly is equipped with a plurality of admission line along length direction, install one check valve (2) on every admission line respectively, one gas generator (1) is installed respectively to the one end that every admission line kept away from air flow director (4), there is pole side air flue upper end to be processed on being close to the cylinder body of no pole side air flue one side, it has corresponding with air flue vent c to process on the cylinder body of pole side air flue one side to keep away from in no pole side air flue upper end The sealing screw mounting hole, air guide sealing screw (10) outside-in cartridge in sealing screw mounting hole and gas channel vent c in proper order, and air guide sealing screw (10) fluting points down, there is pole side air flue inner chamber to pass through air guide sealing screw (10) fluting and no pole side air flue inner chamber intercommunication, it has one and air guide sealing screw (10) the corresponding waist type lock chamber (23) of gas pocket to process on the terminal surface of pole side air flue one side near piston rod (11) lower extreme, it has one and left side air current director (4) the corresponding waist type lock chamber (23) of gas pocket to process on the terminal surface of pole side air flue one side is kept away from to piston (12) lower extreme, two locking mechanical system set up the inside in two waist type lock chambers (23) respectively.
2. A highly efficient repeatable explosive linear actuator as claimed in claim 1, wherein: each locking mechanism comprises a lock pin (18), a self-adaptive guide nail (19) and a spring (20), one end of the self-adaptive guide nail (19) can be inserted into an inner hole of the lock pin (18) in a sliding mode, the self-adaptive guide nail (19) can be rotatably installed in a waist-shaped lock cavity (23) on a piston (12) or a piston rod (11), the spring (20) is installed between the lock pin (18) and the self-adaptive guide nail (19), and the other end of the self-adaptive guide nail (19) is matched with an air hole of an air guide sealing screw (10) or an air hole of a left air flow guider (4).
3. A highly efficient repeatable explosive linear actuator as claimed in claim 2, wherein: the rod side air passage comprises a rod side cylinder body, a lower end cover (6) and an upper end cover (7), the rod side cylinder body is of a rectangular tubular structure, the lower end cover (6) is installed at the lower end of the rod side cylinder body of the piston cylinder (5), and the upper end cover (7) is installed at the upper end of the rod side cylinder body of the piston cylinder (5).
4. A highly efficient repeatable explosive linear actuator as claimed in claim 3, wherein: the rodless side air passage comprises a rodless side cylinder body, a lower sealing screw (8) and an upper sealing screw (9), the rodless side cylinder body is of a rectangular tubular structure, a lower threaded hole is formed in the lower end of the rodless side cylinder body, the lower sealing screw (8) is spirally installed at the lower end of the rodless side cylinder body of the piston cylinder (5), an upper threaded hole is formed in the upper end of the rodless side cylinder body, and the upper sealing screw (9) is spirally installed at the upper end of the rodless side cylinder body of the piston cylinder (5).
5. The highly efficient and repeatable explosive linear actuator of claim 4, wherein: a left internal thread hole is formed in the side wall of the lower end of the rod-side air passage, a right internal thread hole is formed in the side wall of the lower end of the rodless side air passage, external threads are machined at one end, close to the piston cylinder (5), of each air flow guider (4) respectively, and the two air flow guiders (4) are in threaded connection with the rod-side air passage and the rodless side air passage in a threaded connection mode respectively.
6. The highly efficient and repeatable explosive linear actuator of claim 5, wherein: the piston sealing ring device is characterized by further comprising a piston sealing ring (15) and two piston guide belts (14), wherein two piston guide grooves are sequentially processed in the upward circumferential direction of the outer cylindrical surface of the piston (12) from top to bottom, the two piston guide belts (14) are respectively installed in the upper piston guide groove and the lower piston guide groove of the piston (12), a piston sealing groove is processed on the piston (12) between the two piston guide grooves, and the piston sealing ring (15) is installed in a piston sealing groove in the middle of the piston (12).
7. The highly efficient and repeatable explosive linear actuator of claim 6, wherein: it still includes piston rod sealing washer (17) and two piston rod guidance tape (16), upper end cover (7) central processing have with piston rod (11) complex pilot hole, upper end cover (7) inner cylinder face has processed two piston rod guide ways from top to bottom along the circumferencial direction in proper order, two piston rod guidance tape (16) are installed respectively in two piston rod guide ways about upper end cover (7), it has the piston rod seal groove to process on the upper end cover between two piston rod guide ways, piston rod sealing washer (17) are installed in the piston rod seal groove in the middle of upper end cover (7).
8. A highly efficient repeatable explosive linear actuator as claimed in claim 7, wherein: the piston rod further comprises an earring (21) for the rod and a pin (22) for the earring, and the upper end of the piston rod (11) is connected with the earring (21) for the rod through the pin (22) for the earring.
9. A method of actuating a highly efficient and repeatable explosive linear actuator according to claim 8, wherein: the actuating method of the high-efficiency repeatable explosion linear actuator is realized by the following steps,
step one, setting an initial state of the high-efficiency repeatable explosion linear actuator:
the left electromagnetic switch valve (3) is in a closed state, the right electromagnetic switch valve (3) is in an open state, the piston (12) is attached to the lower end cover (6) and is in a lower limit position, the head of a lock pin (18) at the lower end of the piston (12) is inserted into an air hole of the left air flow guider (4) to limit the movement of the piston (12), and a spring (20) arranged in a waist-shaped lock cavity (23) of the piston (12) limits the movement of the lock pin (18) to realize locking;
step two, setting the extension actuation of the high-efficiency repeatable explosion linear actuator:
one gas generator (1) on the left side is ignited to detonate and generate gas, high-pressure gas flows to the gas flow guider (4) through the one-way valve (2) connected with the gas outlet of the gas generator (1), at the moment, the check valves (2) connected with the air outlets of other non-ignited gas generators (1) on the left side are all in a closed state, the influence of high-pressure gas on the non-ignited gas generators (1) is prevented, the high-pressure gas pushes a lock pin (18) at the lower end of a piston (12) and a spring (20) to be retracted into a waist-shaped lock cavity (23) in the lower end of the piston (12) through the air holes of an air flow guider (4) to complete unlocking, further pushing the piston (12) to move upwards until the piston is attached to the upper end cover (7) and reaches an upper limit position, and pushing a lock pin (18) at the lower end of the piston rod (11) by a spring (20) to insert an air guide sealing screw (10) into an air hole to realize locking;
step two, setting the contraction actuation of the high-efficiency repeatable explosion linear actuator:
one gas generator (1) on the right side is ignited to detonate to generate gas, high-pressure gas flows to the gas flow guider (4) through the check valve (2) connected with the gas outlet hole of the gas generator (1), at the moment, the check valves (2) connected with the gas outlet holes of other non-ignited gas generators (1) on the right side are all in a closed state, the high-pressure gas is prevented from influencing the non-ignited gas generators (1), the high-pressure gas flows upwards along a rodless side gas passage of the piston cylinder (5) through the gas hole of the gas flow guider (4), the high-pressure gas pushes the lock pin (18) and the spring (20) to retract into the waist-shaped lock cavity (23) at the lower end of the piston rod (11) through the gas hole of the gas flow guider (4), unlocking is completed, the piston (12) is pushed to move downwards until the piston is attached to the lower end cover (6) to reach a lower limit position, the lock pin (18) at the lower end of the piston (12) is pushed by the spring (20) to be inserted into the gas flow guider (4), realizing locking;
the high-efficiency repeatable explosion linear actuator is repeatedly extended and contracted to actuate, and the high-efficiency repeatable explosion linear actuator is repeatedly reciprocated to actuate.
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| CN114506789A (en) * | 2022-02-24 | 2022-05-17 | 常州大学 | Portable gas-driven expander and method |
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