CN113734457A

CN113734457A - Ejector

Info

Publication number: CN113734457A
Application number: CN202111035646.XA
Authority: CN
Inventors: 鲁科良; 郭亮; 薛松柏; 谢晒明; 王长云
Original assignee: Zhejiang Geely Holding Group Co Ltd; Aerofugia Technology Chengdu Co Ltd
Current assignee: Sichuan AOSSCI Technology Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-12-03

Abstract

The invention discloses a catapult, wherein the catapult comprises a catapult guide rail, a catapult tray, a buffer mechanism, a force accumulation mechanism, a locking assembly and a driving assembly; the ejection tray is connected with the ejection guide rail in a sliding manner; the buffer mechanism is arranged on the ejection guide rail and is used for elastically buffering the ejection tray; the power storage mechanism is in transmission connection with the ejection tray; the driving assembly and the ejection tray are arranged in a separable mode, the driving assembly drives the ejection tray to move from a first position to a second position along the ejection guide rail so that the ejection tray drives the force accumulation mechanism to store energy, and the locking assembly fixes the ejection tray and the ejection guide rail relatively and separates from the ejection guide rail relatively when the ejection tray moves to the second position, so that the ejection tray moves to the first position along the ejection guide rail under the driving of the force accumulation mechanism. The technical scheme of the invention can improve the ejection capability of the ejector.

Description

Ejector

Technical Field

The invention relates to the technical field of ejectors, in particular to an ejector.

Background

The aircrafts such as small and medium-sized unmanned aerial vehicles and the like are widely applied to the fields of society, civil life, military and the like, and due to the limitation of volume and weight, the power performance output of the small and medium-sized aircrafts is insufficient, particularly in the takeoff stage, the aircrafts cannot rapidly obtain higher takeoff speed, the energy consumption is higher, and the requirements on take-off and landing sites are higher. A practical and effective method for solving various problems in the takeoff stage at the present stage is to assist the takeoff of a small and medium-sized aircraft by using a catapult.

The common catapult types at present have various problems when applied to small and medium-sized aircrafts, such as: the rubber band ejector technology is too backward, the ejection capability is weak, and the aircraft can not be given considerable takeoff speed; although the hydraulic ejector has strong ejection capability, the size and the weight of the device are large, and when the hydraulic ejector is installed on a vehicle carrier and used as a mobile ejector, a plurality of inconveniences exist, so that the use scene is severely limited; the rocket boosting ejector has strong ejection capability, simple structure, simple and convenient operation and small device size and weight, but the rocket is a disposable consumption article, a large number of rockets need to be prepared in advance when in frequent takeoff operation, and the rocket has larger potential safety hazard as initiating explosive devices, so that a large amount of management cost can be generated in the processes of storage, transportation and use; and so on. Therefore, the catapult which has strong catapulting capability, simple and reliable structure, simple and convenient operation and maintenance and is suitable for small and medium-sized unmanned aerial vehicles and other aircrafts is urgently needed.

Disclosure of Invention

The invention mainly aims to provide a catapult, aiming at improving the catapulting capability of the catapult.

In order to achieve the above object, the present invention provides a catapult, including:

ejecting the guide rail;

the ejection tray is connected with the ejection guide rail in a sliding manner;

the buffer mechanism is arranged on the ejection guide rail and is used for elastically buffering the ejection tray; the power storage mechanism is in transmission connection with the ejection tray; and

the locking and releasing assembly and the driving assembly are arranged, the driving assembly and the ejection tray are arranged in a separable mode, the driving assembly drives the ejection tray to move from a first position to a second position along the ejection guide rail, so that the ejection tray drives the force accumulation mechanism to store energy, and the locking and releasing assembly enables the ejection tray to be relatively fixed with the ejection guide rail and relatively separated from the ejection guide rail when the ejection tray moves to the second position, so that the ejection tray is driven by the force accumulation mechanism to move along the ejection guide rail to the first position.

Optionally, the power accumulating mechanism comprises a bow arm assembly and a power accumulating assembly which are in transmission connection, and the power accumulating assembly is in transmission connection with the ejection tray.

Optionally, the bow arm subassembly includes bow arm base and bow arm, the one end of bow arm with bow arm base fixed connection, hold power subassembly and hold power capstan winch including the one-level of coaxial setting and second grade, the one-level hold power capstan winch with the other end transmission of bow arm is connected, the second grade hold power capstan winch with the one end transmission of ejecting the tray is connected.

Optionally, the diameter of the secondary power winch is greater than the diameter of the primary power winch.

Optionally, the bow arm is an elongated metal structure.

Optionally, the driving assembly comprises a pulling driving member and a pulling slider which are in transmission connection, the pulling slider is provided with a traveling mechanism, the pulling slider moves along the ejection guide rail to be fixedly connected with the ejection tray at a first position under the driving of the traveling mechanism, and the pulling slider and the ejection tray move towards a second position synchronously under the driving of the pulling driving member; and/or the presence of a gas in the gas,

the ejector further comprises a release assembly, and the release assembly relatively separates the ejection tray from the drawing slide block when the ejection tray moves to the second position.

Optionally, the drawing slider is provided with a connecting groove, the ejection tray is provided with a connecting piece, and the connecting groove is detachably connected with the connecting piece.

Optionally, a traction winch is connected between the traction driving member and the traction slider in a transmission manner, the traction driving member is connected with the traction winch in a transmission manner, a traction steel cable is wound on the traction winch, one end of the traction steel cable is fixedly connected with the traction winch, and the other end of the traction steel cable is fixedly connected with the traction slider.

Optionally, the ejection tray is provided with a clamping groove, the locking assembly comprises a clamping piece and a locking driving piece, and the clamping piece is arranged under the driving of the locking driving piece and can be separated from the clamping groove.

Optionally, a through groove is formed in the ejection guide rail, the buffer mechanism is embedded in the through groove and comprises a buffer spring and a pressing plate, one end of the buffer spring is fixedly connected with the groove wall of the through groove, and the other end of the buffer spring is fixedly connected with the pressing plate.

According to the technical scheme, the ejector comprises an ejection guide rail, an ejection tray, a buffer mechanism, a force storage mechanism, a locking assembly and a driving assembly; the driving assembly and the ejection tray are arranged in a separable mode, so that when the driving assembly and the ejection tray are fixedly connected, the ejection tray can move from a first position to a second position along the ejection guide rail under the driving of the driving assembly, is relatively fixed with the ejection guide rail under the action of the locking assembly, and moves to drive the force storage mechanism to store energy; when the driving assembly and the ejection tray are relatively separated and the locking assembly obtains a release instruction, the locking assembly unlocks the ejection tray on the ejection guide rail, the ejection tray moves to the first position along the ejection guide rail under the driving of the power storage mechanism and is elastically buffered by the buffer mechanism, so that the ejection tray is stopped in the ejection guide rail, and the aircraft departs from the ejection tray to take off, thereby reducing the energy loss of the ejection tray in the ejection process, simultaneously improving the ejection speed of the ejection tray, ensuring that the aircraft has higher take-off speed and further improving the ejection capability of the ejector.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic perspective view of the ejector of the present invention in a standby state;

FIG. 2 is a perspective view of the ejector in a first stage of the ready state;

FIG. 3 is a perspective view of a second stage of the ejector in the ready state;

FIG. 4 is a schematic perspective view of the assembly of the ejection tray, the pulling slider and the locking assembly;

fig. 5 is a cross-sectional view of the assembly of the ejection tray, the ejection guide rail and the buffer mechanism;

the reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides an ejector.

Referring to fig. 1 to 3, in the embodiment of the present invention, the ejector includes an ejection rail 10, an ejection tray 40, a buffer mechanism 30, a power accumulating mechanism 50, a lock release assembly 60, and a driving assembly 70; the ejection tray 40 is slidably connected with the ejection guide rail 10; the buffer mechanism 30 is mounted on the ejection guide rail 10 and used for elastically buffering the ejection tray 40; the power storage mechanism 50 is in transmission connection with the ejection tray 40; the driving component 70 is arranged separately from the ejection tray 40, the driving component 70 drives the ejection tray 40 to move from the first position to the second position along the ejection guide rail 10, so that the ejection tray 40 drives the force accumulation mechanism 50 to accumulate energy, and when the ejection tray 40 moves to the second position, the locking component 60 fixes the ejection tray 40 relatively to the ejection guide rail 10 and separates the ejection tray 40 from the ejection guide rail 10 relatively, so that the ejection tray 40 moves to the first position along the ejection guide rail 10 under the driving of the force accumulation mechanism 50.

The ejector comprises an ejection guide rail 10, an ejection tray 40, a buffer mechanism 30, a power storage mechanism 50, a locking assembly 60 and a driving assembly 70; the ejection guide rail 10 can be made of industrial aluminum profiles, and is high in strength, light in weight, easy to obtain, and convenient to carry and transport; the ejector rail 10 may be arranged horizontally or inclined as desired.

The ejection tray 40 is used for placing an aircraft and is connected to the ejection guide rail 10 in a sliding manner, and the ejection tray 40 is connected to the ejection guide rail 10 in a sliding manner by arranging rollers on the ejection tray 40 and connecting the ejection tray 40 to the ejection guide rail 10 in a sliding manner or by arranging a first sliding chute 404 on the bottom wall of the ejection tray 40 and connecting the first sliding chute with a guide protrusion 102 on the ejection guide rail 10 in a matching manner; the first sliding groove 404 may be formed in the side wall of the ejection tray 40, and the ejection guide rail 10 is provided with a T-shaped sliding groove and forms the guide protrusion 102, so that the first sliding groove 404 is connected with the guide protrusion 102 in a matching manner, and of course, other connection structures capable of satisfying the sliding connection between the ejection tray 40 and the ejection guide rail 10 are also applicable to the present application.

The buffer mechanism 30 is installed at the tail end of the ejection guide rail 10, and the buffer mechanism 30 is used for providing a buffer effect for the ejection tray 40 when the ejection tray 40 reaches the ejection tail end, so that an aircraft on the ejection tray 40 is ejected out, meanwhile, the ejection tray 40 can be prevented from being separated from the ejection guide rail 10, and accidents are reduced.

The power storage mechanism 50 is in transmission connection with the ejection tray 40, and the power storage mechanism 50 accumulates elastic potential energy through elastic deformation, so that the power storage mechanism 50 can provide high-quality ejection force to the ejection tray 40 by releasing the elastic potential energy, and the power storage mechanism 50 accumulates the elastic potential energy as pretightening force under the driving of the ejection tray 40, so that the ejection tray 40 can obtain higher ejection force when being ejected, and the ejection capability of the ejector is improved. Due to the restorable characteristic of elastic deformation, the power storage mechanism 50 can be repeatedly used for a long time, the service life of the catapult is prolonged, and the use cost during takeoff operation is reduced.

The locking and releasing component 60 is fixed at the second position of the ejection guide rail 10, so that when the ejection tray 40 moves to the second position, the locking and releasing component 60 can fix the ejection tray 40 at the second position, and when a releasing instruction is received, the locking and releasing component 60 can unlock the ejection tray 40 on the ejection guide rail 10, so that the ejection tray 40 is ejected to the first position from the second position along the ejection guide rail 10 under the action of the power accumulating mechanism 50, and the aircraft is ejected from the ejection tray 40; of course, the locking assembly 60 may also be fixed to the ejection tray 40 such that when the ejection tray 40 is moved to the second position, the ejection tray 40 is fixed in the second position by the mutual balancing of the locking assembly 60 and the ejection rail 10.

The ejection tray 40 and the driving component 70 are separately arranged, that is, when the ejection tray 40 is fixedly connected with the driving component 70, the ejection tray 40 is in transmission connection with the driving component 70, and further, under the driving of the driving component 70, the ejection tray 40 moves from the first position to the second position along the ejection guide rail 10 under the force, so that the ejection tray 40 further drives the force storage mechanism 50 to store energy, thereby obtaining higher ejection force when the ejection tray 40 is ejected, and improving the ejection capability of the ejector; when the ejection tray 40 and the driving component 70 are separated from each other, the force accumulating mechanism 50 releases elastic potential energy to drive the ejection tray 40 to move from the second position to the first position along the ejection guide rail 10 under force, and due to the separation arrangement of the ejection tray 40 and the driving component 70, namely the driving component 70 does not apply extra force to the ejection tray 40, the driving component 70 does not become encumbrance of the ejection tray 40 in the ejection process, the energy loss of the ejection tray 40 in the ejection process is reduced, the ejection speed of the ejection tray 40 is further improved, the aircraft is ensured to have higher takeoff speed, and the ejection capability of the ejector is further improved.

The ejector has three states during the ejection process, when the ejector is in the standby state, the ejection tray 40 is located at the first position of the ejection guide rail 10, and the power accumulating mechanism 50 is in the release state; when the ejector is in the ready state, the ready state includes a first stage and a second stage, and in the first stage, the ejection tray 40 is fixedly connected with the driving assembly 70; in the second stage, the ejection tray 40 moves from the first position to the second position along the ejection guide rail 10 under the driving of the driving component 70, when the ejection tray 40 reaches the second position, the ejection tray 40 is relatively fixed with the ejection guide rail 10 through the locking component 60 and relatively separated from the driving component 70, and meanwhile, the movement of the ejection tray 40 drives the power storage mechanism 50 to continuously store energy; when the catapult is in a release state, the locking and releasing component 60 obtains a release instruction, so as to unlock the catapult tray 40 on the catapult guide rail 10, at the moment, the power accumulating mechanism 50 is quickly restored to a release state, so as to drive the catapult tray 40 to slide from the second position to the first position along the catapult guide rail 10 at a high speed, under the action of the buffer mechanism 30, the catapult tray 40 is stopped at the first position, and an aircraft on the catapult tray 40 is catapulted out under the condition of obtaining a higher takeoff speed, so that the catapult is catapult.

According to the technical scheme, the ejector comprises an ejection guide rail 10, an ejection tray 40, a buffer mechanism 30, a power storage mechanism 50, a locking assembly 60 and a driving assembly 70; the driving component 70 is detachably arranged with the ejection tray 40, so that when the driving component 70 and the ejection tray 40 are fixedly connected, the ejection tray 40 can move from the first position to the second position along the ejection guide rail 10 under the driving of the driving component 70, and is relatively fixed with the ejection guide rail 10 under the action of the locking component 60, and meanwhile, the ejection tray 40 moves to drive the force accumulating mechanism 50 to accumulate energy; when the driving assembly 70 and the ejection tray 40 are relatively separated and the locking assembly 60 obtains a release instruction, the locking assembly 60 unlocks the ejection tray 40 on the ejection guide rail 10, the ejection tray 40 moves to the first position along the ejection guide rail 10 under the driving of the power accumulating mechanism 50, and under the elastic buffering of the buffering mechanism 30, the ejection tray 40 is stopped in the ejection guide rail 10, and the aircraft departs from the ejection tray 40 for taking off, so that the energy loss of the ejection tray 40 in the ejection process is reduced, the ejection speed of the ejection tray 40 is increased, the aircraft is ensured to have higher take-off speed, and the ejection capability of the ejector is further improved.

Referring to FIGS. 1-3, in one embodiment, power mechanism 50 includes a pantograph arm assembly 501 and a power assembly 502 drivingly connected, power assembly 502 being drivingly connected to ejection tray 40. Further, the arm assembly 501 comprises an arm base 501b and an arm 501a, one end of the arm 501a is fixedly connected with the arm base 501b, the power storage assembly 502 comprises a first-stage power storage winch 502b and a second-stage power storage winch 502c which are coaxially arranged, the first-stage power storage winch 502b is in transmission connection with the other end of the arm 501a, and the second-stage power storage winch 502c is in transmission connection with one end of the ejection tray 40. Wherein the diameter of the secondary power capstan 502c is greater than the diameter of the primary power capstan 502 b. The bow 501a is a long strip metal structure.

The power accumulating mechanism 50 comprises a bow arm component 501 and a power accumulating component 502 which are in transmission connection, the power accumulating component 502 is in transmission connection with the ejection tray 40, and the power accumulating component 502 drives the bow arm component 501 to elastically deform to accumulate energy through the driving of the ejection tray 40, so that elastic potential energy is provided to enable the ejection tray 40 to have a large ejection speed in the ejection process, and the ejection capacity of the ejector is improved. Further, the arm assembly 501 includes an arm base 501b and an arm 501a, the arm base 501b is fixed on the mounting surface and is fixedly connected with one end of the arm 501a, when the other end of the arm 501a is subjected to an external force, the arm 501a accumulates elastic potential energy through deformation, and turns from a relaxed state to a tensed state, so as to prepare for energy storage for ejection of the ejection tray 40. Specifically, the bow arm 501a is rectangular shape metallic structure, the thickness that bow arm 501a deviates from the one end of bow arm base 501b tapers and sets up, make bow arm 501a can be under the effect of external force quick deformation and accumulate the potential energy, bow arm 501a also can be for the bow arm 501a that has invariable thickness of course, or for the bow arm 501a that the one end thickness that deviates from bow arm base 501b thickens the setting gradually, or for the bow arm 501a that has irregular thickness, guarantee to improve bow arm 501a intensity under the prerequisite that bow arm 501a can realize the accumulation of same potential energy.

The end of the ejecting guide rail 10 is fixed with the power guide wheel 202, the power assembly 502 comprises a first-stage power storage winch 502b and a second-stage power storage winch 502c which are coaxially arranged, a rotating shaft connecting the first-stage power storage winch 502b and the second-stage power storage winch 502c is rotatably connected to a double-capstan base 502a, and the double-capstan base 502a is used for supporting the first-stage power storage winch 502b and the second-stage power storage winch 502 c; the first-stage power storage winch 502b is wound with a first-stage power storage steel cable 503, the first-stage power storage winch 502b is in transmission connection with the other end of the bow arm 501a through the first-stage power storage steel cable 503, the second-stage power storage winch 502c is wound with a second-stage power storage steel cable 504, and the second-stage power storage steel cable 504 bypasses the power storage guide wheel 202 and is in transmission connection with one end of the ejection tray 40 on the ejection guide rail 10.

Taking the perspective of the drawings of the specification as an example, when the secondary power winch 502c rotates clockwise, the secondary power cable 504 is tightened, and when it rotates counterclockwise, the secondary power cable 504 is released; when first stage power storage winch 502b rotates clockwise, first stage power storage cable 503 is released, and when it rotates counterclockwise, first stage power storage cable 503 is tightened. When the ejection tray 40 moves from the first position to the second position along the ejection rail 10 under the driving of the driving assembly 70, the ejection tray 40 slides and pulls the second-stage power storage steel cable 504, so as to drive the second-stage power storage winch 502c to rotate counterclockwise, and simultaneously the first-stage power storage winch 502b coaxially fixed with the second-stage power storage winch 502c rotates counterclockwise, so as to tighten the first-stage power storage steel cable 503 to deform the bow arm 501a, so as to accumulate elastic potential energy, and when the ejection tray 40 is fixed to the ejection rail 10 by the locking assembly 60, the accumulation of the elastic potential energy reaches the maximum. When the locking and releasing component 60 obtains an ejection command, the locking and releasing component 60 releases the ejection tray 40 from the ejection guide rail 10, at this time, the bow arm 501a is rapidly recovered to pull the first-stage power storage cable 503 to drive the first-stage power storage winch 502b to rotate clockwise at a high speed, and at the same time, the first-stage power storage winch 502b drives the coaxial second-stage power storage winch 502c to rotate clockwise at a high speed, so that the second-stage power storage cable 504 is rapidly tightened to enable the ejection tray 40 to slide from the second position to the first position along the ejection guide rail 10 at a high speed. Further, the ejection tray 40 hits the buffer mechanism 30, under the elastic buffer of the buffer mechanism 30, the ejection tray 40 is rapidly decelerated and forced to move to the second position, and simultaneously, the pulling of the secondary power storage cable 504 causes the ejection tray 40 to move to the first position, and the two forces are offset and stop at the ejection rail 10; the aircraft located on the ejector rail 10 is ejected at a higher take-off speed.

Specifically, the diameter of the secondary power storage winch 502c is larger than that of the primary power storage winch 502b, so that when the primary power storage winch 502b drives the secondary power storage winch 502c to rotate, the speed is increased and the torque is reduced, the linear speed provided by the bow arm 501a is further obviously improved when being transmitted to the ejection tray 40, and an aircraft placed on the ejection tray 40 obtains high speed instantly and takes off.

With combined reference to fig. 4, in an embodiment, the driving assembly 70 includes a pulling driving member 701 and a pulling slider 704 in transmission connection, the pulling slider 704 is mounted with a traveling mechanism 705, the pulling slider 704 moves along the ejection rail 10 to be fixedly connected with the ejection tray 40 at a first position by driving of the traveling mechanism 705, and the pulling slider 704 moves toward a second position synchronously with the ejection tray 40 by driving of the pulling driving member 701. Specifically, a pulling winch 702 is connected between the pulling driving member 701 and the pulling sliding block 704 in a transmission manner, the pulling driving member 701 is connected with the pulling winch 702 in a transmission manner, a pulling steel cable 703 is wound on the pulling winch 702, one end of the pulling steel cable 703 is fixedly connected with the pulling winch 702, and the other end of the pulling steel cable 703 is fixedly connected with the pulling sliding block 704.

A traction guide wheel 201 is fixed at the head end of an ejection guide rail 10, a driving assembly 70 comprises a traction driving piece 701 and a traction sliding block 704 which are in transmission connection, the traction sliding block 704 is connected to the ejection guide rail 10 in a sliding mode, and a traction winch 702 is connected between the traction driving piece 701 and the traction sliding block 704 in a transmission connection mode, so that the occupied space is reduced; the traction driving piece 701 is in transmission connection with a traction winch 702, a traction steel cable 703 is wound on the traction winch 702, one end of the traction steel cable 703 is fixedly connected with the traction winch 702, and the other end of the traction steel cable 703 bypasses the traction guide wheel 201 and is fixedly connected with a traction sliding block 704 positioned on the ejection guide rail 10; the traction driving part 701 is composed of a traction motor and a speed reducer, the torque can be increased to drive the traction winch 702 to rotate rapidly, the traction motor drives the speed reducer, the power output end of the speed reducer is fixed with the main shaft of the traction winch 702 through a coupler, and then the main shaft is driven to rotate to drive the traction winch 702 to rotate, so that the traction steel cable 703 is tightened to drive the traction sliding block 704 to move towards the head end of the ejection guide rail 10.

The traction sliding block 704 is provided with a traveling mechanism 705, the traveling mechanism 705 comprises a driving motor, a rack, a gear and a roller, the rack and the gear are meshed with each other, the driving motor is arranged on the traction sliding block 704, the output end of the driving motor is in transmission connection with the gear, the roller is fixed on the traction sliding block 704, the rack is fixed on the ejection guide rail 10, and the traction sliding block 704 moves along the ejection guide rail 10 through the mutual meshing transmission of the gear and the rack under the driving of the driving motor. In another embodiment, the traveling mechanism 705 includes a driving motor, a threaded traveling screw, and the pulling slider 704 is provided with a convex tooth matching with the thread, and the traveling screw is rotated by the driving motor, so that the pulling slider 704 moves along the thread through the convex tooth, and the sliding of the pulling slider 704 on the ejection rail 10 is realized. Of course, the structure of the traveling mechanism 705 for slidably coupling the pulling block 704 to the ejector rail 10 is not limited to the above structure.

Under the driving of the traveling mechanism 705, the pulling slider 704 can move from the second position to the first position along the ejection guide rail 10 and is fixedly connected with the ejection tray 40 located at the first position, the pulling slider 704 and the ejection tray 40 can be relatively fixed through a snap connection, an insertion connection, a concave-convex embedding connection or other connection modes, so that the pulling slider 704 and the ejection tray 40 are fixed into a whole, and when the pulling driving member 701 drives and tightens the pulling steel cable 703, the pulling steel cable 703 pulls the pulling slider 704 to move so as to drive the ejection tray 40 to synchronously move towards the second position, so that the secondary power storage steel cable 504 fixed with the ejection tray 40 pulls the secondary power storage winch 502c to rotate so as to enable the bow arm 501a to deform to accumulate potential energy, and prepare for the ejection tray 40 to have a larger ejection speed in the ejection process.

In one embodiment, the pulling slider 704 is provided with a connecting groove 704a, the eject tray 40 is provided with the connecting member 401, and the connecting groove 704a is detachably connected to the connecting member 401.

In the application, the surface of the drawing sliding block 704 facing the ejection tray 40 is provided with a connecting groove 704a, the inner wall of the connecting groove 704a is provided with a limiting part, and the limiting part is used for buckling the connecting piece 401 in the connecting groove 704 a; one side of the ejection tray 40 facing the traction sliding block 704 is provided with a connecting piece 401, the connecting piece 401 comprises a locking hook, a supporting plate and a spring, the locking hook is rotatably connected with the ejection tray 40, the locking hook is provided with a guide inclined plane, the locking hook can be conveniently and smoothly inserted into the connecting groove 704a, the supporting plate is formed by outward extension of the ejection tray 40, and the spring is located between the locking hook and the supporting plate and is respectively fixedly connected with the locking hook and the supporting plate. The pulling slider 704 moves toward the ejection tray 40 under the driving of the traveling mechanism 705, and the pulling slider 704 contacts with the guide slope of the latch hook through the notch of the connection groove 704a, thereby pressing the latch hook to rotate toward the support plate and compressing the spring, so that the latch hook extends into the connection groove 704a to be connected with the limiting portion in a matching manner. Of course, the connection slot 704a may be provided in the ejection tray 40, and in this case, the connection member 401 is provided in the pulling slider 704, so that the pulling slider 704 and the ejection tray 40 can be fixed relative to each other.

To reduce energy loss during ejection of the ejection tray 40, the ejector further includes a release assembly that relatively separates the ejection tray 40 from the pull slide 704 when the ejection tray 40 is moved to the second position. The release assembly is installed in ejecting tray 40, and including release driving piece and the piece that resets, when ejecting tray 40 is fixed in the second position by release assembly 60, release driving piece drive resets and makes the latch hook rotate towards the backup pad, and then the latch hook breaks away from spacing portion, furtherly, tractive slider 704 separates gradually the setting with ejecting tray 40 under the drive of tractive driving piece 701, thereby improve the speed of ejecting tray 40 at the ejection in-process of ejecting, ensure that the aircraft has higher speed of taking off, further improve the ejection ability of catapult.

Referring to fig. 4 in combination, in an embodiment, the ejection tray 40 is provided with a card slot 402, and the locking assembly 60 includes a card 601 and a locking driving member 602, wherein the card 601 is detachably disposed from the card slot 402 by the locking driving member 602.

The ejection tray 40 is provided with a clamping groove 402, the locking and releasing assembly 60 comprises a clamping piece 601 and a locking and releasing driving piece 602, and when the ejection tray 40 moves to the second position, the locking and releasing driving piece 602 drives the clamping piece 601 to rotate and buckle into the clamping groove 402, so that the locking and releasing assembly 60 and the ejection tray 40 are relatively fixed; when the locking and releasing assembly 60 obtains an ejection command, the locking and releasing driving member 602 drives the clamping member 601 to rotate out of the clamping groove 402, so that the ejection tray 40 slides at a high speed from the second position to the first position along the ejection guide rail 10 under the action of the power accumulating mechanism 50, and the aircraft on the ejection tray 40 is ejected out.

Referring to fig. 5 in combination, in an embodiment, a through slot 101 is formed in the ejection rail 10, the buffer mechanism 30 is embedded in the through slot 101, the buffer mechanism 30 includes a buffer spring 301 and a pressing plate 302, one end of the buffer spring 301 is fixedly connected to a slot wall of the through slot 101, and the other end of the buffer spring 301 is fixedly connected to the pressing plate 302.

A through groove 101 is concavely arranged on the ejection guide rail 10, the through groove 101 is a T-shaped sliding groove and is formed with a guide protrusion 102, at this time, the ejection tray 40 extends downwards to form a convex block 403, a first sliding groove 404 is concavely arranged on the side wall of the convex block 403, and the first sliding groove 404 is connected with the guide protrusion 102 in a sliding manner; the buffer mechanism 30 is embedded in the through groove 101 and located at the tail end of the ejection guide rail 10, the buffer mechanism 30 comprises a buffer spring 301 and a pressing plate 302, one end of the buffer spring 301 is fixedly connected with the groove wall of the through groove 101, and the other end of the buffer spring 301 is fixedly connected with the pressing plate 302, so that when the ejection tray 40 slides to a first position at a high speed, the ejection tray 40 compresses the buffer spring 301 through mutual extrusion of the convex block 403 and the pressing plate 302, the ejection tray 40 is rapidly decelerated by buffer force, the ejection tray 40 is prevented from being thrown out of the ejection guide rail 10 due to inertia, and accidents are reduced; and when the buffer spring 301 rebounds, the pressing plate 302 will push the eject tray 40 to move toward the second position, but the eject tray 40 is stopped at the first position because the eject tray 40 is fixedly connected to the secondary power cable 504 and has a pulling force in the opposite direction.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An ejector, characterized in that the ejector comprises:

ejecting the guide rail;

the buffer mechanism is arranged on the ejection guide rail and is used for elastically buffering the ejection tray;

the power storage mechanism is in transmission connection with the ejection tray; and

2. The ejector of claim 1 wherein said power accumulating mechanism includes a drivingly connected bow arm assembly and a power accumulating assembly, said power accumulating assembly being drivingly connected to said ejection tray.

3. The ejector of claim 2 wherein said arm assembly includes an arm base and an arm, one end of said arm being fixedly connected to said arm base, said power storage assembly including a coaxially disposed primary power storage winch drivingly connected to the other end of said arm and a secondary power storage winch drivingly connected to one end of said ejection tray.

4. The ejector of claim 3 wherein said secondary power capstan has a diameter greater than the diameter of the primary power capstan.

5. The ejector of claim 3 wherein said bow arm is an elongated metallic structure.

6. The ejector of claim 1 wherein the drive assembly includes a drive-coupled pull drive member and a pull slide, the pull slide having a travel mechanism mounted thereon, the pull slide being movable along the ejection guide rail to be fixedly coupled to the ejection tray at a first position upon actuation of the travel mechanism, and the pull slide being movable toward the second position in synchronization with the ejection tray upon actuation of the pull drive member; and/or the presence of a gas in the gas,

7. The ejector of claim 6, wherein the pulling slider is provided with a connecting groove, and the ejection tray is provided with a connecting member, the connecting groove being detachably connected to the connecting member.

8. The ejector of claim 6, wherein a pulling capstan is drivingly connected between the pulling drive member and the pulling slider, the pulling drive member is drivingly connected to the pulling capstan, and a pulling cable is wound around the pulling capstan, one end of the pulling cable being fixedly connected to the pulling capstan, and the other end of the pulling cable being fixedly connected to the pulling slider.

9. The ejector of claim 1, wherein the ejection tray is provided with a catch, and the lock-release assembly includes a catch member and a lock-release driving member, the catch member being detachably disposed from the catch upon driving of the lock-release driving member.

10. The ejector according to claim 1, wherein a through groove is formed in the ejector rail, the buffer mechanism is embedded in the through groove, the buffer mechanism comprises a buffer spring and a pressing plate, one end of the buffer spring is fixedly connected with the wall of the through groove, and the other end of the buffer spring is fixedly connected with the pressing plate.