CN111907706A - Electromagnetic drive's black box throws and puts separating mechanism - Google Patents

Abstract

The invention provides an electromagnetically driven black box throwing and separating mechanism, comprising an ejection assembly and an actuation assembly arranged on an adapter seat, the adapter seat is fixed on the aircraft body, and the ejection assembly is arranged at the center of the adapter seat, There are at least two sets of actuating components, and they are evenly arranged around the adapter seat. The actuating components press the periphery of the black box; the ejection component includes a disc spring mounting seat, a limit sleeve, a disc spring guide post and a disc spring, and the actuating component It includes a direct-acting electromagnet, a connecting piece, a pendulum rod, a top rod and a rotating shaft. The direct-acting electromagnet is arranged on the outside of the pendulum rod. The pendulum rod is T-shaped. The horizontal part of the pendulum rod includes an inclined section and a horizontal section. The straight part is installed on the adapter seat through the rotating shaft, the inclined section is matched with the inclined surface of the connecting piece, and the horizontal section is in contact with the side surface of the ejector rod. The present invention has a compact structure, the black box is pressed tightly when the aircraft is in safe flight, and the ejection black box can be quickly and reliably ejected after the plane crashes.

Description

An Electromagnetically Driven Black Box Throwing and Separating Mechanism

technical field

The invention belongs to the field of aviation technology, in particular to an electromagnetically driven black box throwing and separating mechanism.

Background technique

The "black box" is used to record flight parameters and voice information before the plane crash. After the plane crash, the information recorded in the black box can be used to trace the cause of the accident. Now, in order to reduce the difficulty of searching, the throwable black box can be used in the black box. It is separated from the aircraft body in advance, especially in the deep sea environment, so as to avoid sinking into the seabed with the aircraft. However, the existing throwing mechanisms are mostly driven by pyrotechnics, which not only have high storage requirements, safety risks, but also environmental problems. Humidity is sensitive, which reduces reliability, and fire attack products have the disadvantages of detonating and polluting the environment. The present invention provides an electromagnetic-driven throwing and separating mechanism, which has simple structure, small installation space, long storage life and safety. High, insensitive to ambient humidity and temperature, which can improve the reliability of throwing.

SUMMARY OF THE INVENTION

In view of this, the present invention aims to provide an electromagnetically driven black box throwing and separating mechanism, which is installed on the body of the aircraft, and during the safe flight of the aircraft, the black box is pressed tightly. The drive is unlocked, and the black box is ejected to separate it from the aircraft body in advance. The present invention has a compact structure, the aircraft can fly safely, and the black box is pressed tightly.

In order to achieve the above object, the technical scheme of the present invention is achieved in this way:

An electromagnetically driven black box throwing and separating mechanism includes an ejection assembly and an actuation assembly arranged on an adapter seat, the adapter seat is fixed on the aircraft body, and the ejection assembly is arranged in the center of the adapter seat At least two groups of the actuating components are arranged around the adapter seat, and the actuating components are arranged on the periphery of the black box;

The ejection assembly includes a disc spring mounting seat, a limit sleeve, a disc spring guide post and a disc spring, the disc spring mounting seat is fixed on the adapter seat, and the disc spring mounting seat is a sleeve structure, and A limit shoulder is fixed on the upper part of the inner wall of the disc spring mount, the limit sleeve is slidably arranged in the disc spring mount, and is located below the limit shoulder, the limit shoulder restricts the axis of the limit sleeve The middle and lower part of the disc spring guide post protrudes into the inner cavity of the disc spring mounting seat, and the bottom end of the disc spring guide post is fixedly connected with the limit sleeve, and the top end of the spring guide post is pressed against the bottom of the black box. end;

The disc spring is sleeved on the disc spring guide post, and the lower end of the disc spring abuts on the limit shoulder, and the upper end touches the upper end of the disc spring guide post. During the flight of the aircraft, the disc spring is in a compressed state, limiting the position. There is a gap between the sleeve and the limit shoulder;

Each of the actuating components includes a direct-acting electromagnet, a connecting piece, a swing rod, a top rod and a rotating shaft, the direct-acting electromagnet is arranged on the outside of the swing rod, and the swing rod is T-shaped, And the horizontal part of the T-shaped pendulum rod includes an inclined section and a horizontal section, the vertical part of the T-shaped pendulum rod is installed on the adapter seat through the rotating shaft, and the inclined section is in contact with the inclined surface of the connecting piece. The horizontal section is in contact with the side of the ejector rod, and the ejector rod is fixed on the execution end of the vertically arranged direct-acting electromagnet. The connector is mounted on the black box.

Further, the connecting piece includes a connecting plate and a bending plate, the bending plate is arranged at the bottom of the connecting plate, the opening of the bending plate is arranged toward the swing rod, and the upper part of the bending plate is a straight plate, and the lower part is an inclined plate , the lower inclined plate is matched with the lower surface of the inclined section of the pendulum rod.

Further, the top rod is guided and limited by the side wall of the adapter seat.

Further, the included angle between the inclined plane and the vertical plane between the connecting piece and the pendulum rod is 60-80°.

Further, the contact surface between the horizontal section and the side surface of the ejector rod is an arc surface.

Further, the top end of the inclined section is flush with the top end of the horizontal section, and the bottom end of the inclined section is arranged lower than the bottom end of the horizontal section.

Further, the disc spring guide column includes a receiving plate and a guide column, the receiving plate is arranged on the top end of the guiding column, and the upper end of the disc spring abuts on the lower surface of the receiving plate.

Further, a lubricating layer is coated on the contact between the top rod and the T-shaped pendulum rod.

Compared with the prior art, the electromagnetically driven black box throwing and separating mechanism of the present invention has the following advantages:

1) The present invention is driven by an electromagnet, which is easier to store than the current pyrotechnic drive, is less sensitive to environmental humidity, and has high safety and reliability;

2) The layout of each component is compact, the volume of the mechanism is small, and the installation space is small, which can be applied to different types of black boxes;

3) The present invention utilizes a set of ejection components to be arranged at the center position, which is beneficial to ensure the ejection posture;

4) The present invention uses levers to transmit force, and adds a lubricating layer between the ejector rod and the T-shaped pendulum rod, so that the electromagnet can complete the unlocking of the mechanism with a small driving force.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a schematic structural diagram of an electromagnetically driven black box throwing and separating mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the ejection assembly and the actuation assembly.

Description of reference numbers:

1-Ejection Assembly, 1-1-Disc Spring Mounting Seat, 1-2-Limiting Sleeve, 1-3-Disc Spring Guide Post, 1-4-Disc Spring, 1-5-Limiting Shoulder, 2-Working Moving components, 2-1-direct electromagnet, 2-2-connector, 2-3-swing rod, 2-4-top rod, 2-5-rotating shaft, 3-transfer seat, 4-black box.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in Figures 1-2, an electromagnetically driven black box throwing and separating mechanism includes an ejection assembly 1 and an actuating assembly 2 arranged on an adapter 3, and the adapter 3 is fixed on the aircraft body , the ejection assembly 1 is arranged at the center of the adapter seat 3, at least two groups of the actuation assemblies 2 are arranged, and are evenly arranged around the adapter seat, and the actuation assembly is arranged on the periphery of the black box 4;

The ejection assembly 1 includes a disk spring mounting seat 1-1, a limit sleeve 1-2, a disk spring guide post 1-3 and a disk spring 1-4, and the disk spring mounting seat 1-1 is fixed on the adapter. On the seat 3, the disc spring mounting seat 1-1 is a sleeve structure, and a limit shoulder 1-5 is fixed on the upper part of the inner wall of the disk spring mounting seat 1-1, and the limit sleeve 1-2 slides It is arranged in the disc spring mounting seat 1-1, and is located below the limit shoulder 1-5. The limit shoulder 1-5 limits the axial displacement of the limit sleeve 1-2. The disc spring The middle and lower part of the guide post 1-3 protrudes into the inner cavity of the disc spring mounting seat 1-1, and the bottom end of the disc spring guide post 1-3 is fixedly connected with the limit sleeve 1-2. The top end touches the bottom end of the black box 4;

The disc spring 1-4 is sleeved on the disc spring guide post 1-3, and the lower end of the disc spring 1-4 abuts on the limiting shoulder 1-5, and the upper end abuts on the disc spring guide post 1-3. On the upper end, during the flight of the aircraft, the disc springs 1-4 are in a compressed state, and there is a gap between the limit sleeve 1-2 and the limit shoulder 1-5;

Each of the actuating components 2 includes a direct-acting electromagnet 2-1, a connecting piece 2-2, a swing rod 2-3, a top rod 2-4 and a rotating shaft 2-5. The direct-acting electromagnet 2 -1 is arranged on the outside of the pendulum rod 2-3, the pendulum rod is T-shaped, and the horizontal part of the T-shaped pendulum rod includes an inclined section and a horizontal section, and the vertical part of the T-shaped pendulum rod passes through The rotating shaft 2-5 is installed on the adapter seat, the inclined section is in contact with the inclined surface of the connecting piece 2-2, the horizontal section is in contact with the side surface of the ejector rod 2-4, and the ejector rod 2-4 is fixed On the executive end of the vertically arranged direct-acting electromagnet 2-1, when the direct-acting electromagnet 2-1 remains in the extended state, the ejector rod 2-4 restricts the swing of the pendulum rod 2-3, and the connecting piece 2- 2 is mounted on the black box 4.

The connecting piece 2-2 includes a connecting plate and a bending plate, the bending plate is arranged at the bottom of the connecting plate, the opening of the bending plate is arranged towards the swing rod, and the upper part of the bending plate is a straight plate, the lower part is an inclined plate, and the lower part is a straight plate. The inclined plate is matched with the lower surface of the inclined section of the pendulum rod 2-3.

The ejector rod 2-4 is guided and limited by the side wall of the adapter seat 3, which ensures that the linear motion of the ejector rod 2-4 is driven by the linear electromagnet 2-1, which can better support the horizontal section of the pendulum rod 2-3. limit.

The angle between the inclined plane of the connecting piece 2-2 in contact with the swing rod 2-3 and the vertical plane is 60°-80°, which can reduce the vertical distance from the inclined plane to the rotating shaft, that is, reduce the lever arm. The top end of the inclined section is flush with the top end of the horizontal section, and the bottom end of the inclined section is arranged below the bottom end of the horizontal section. By setting the pressing force arm to be shorter than the length of the unlocking force arm, the pressing force on the black box 4 is At the same time, a small unlocking force is required, that is, the pendulum rod 2-3 of this configuration has both a small unlocking driving force for the unlocking end of the direct-acting electromagnet 2-1, and a large pressure for the black box. Tightening force, so that the black box can be well pressed on the ejection assembly 1 when it is not fired.

The contact surface between the horizontal section and the side surface of the ejector rod 2-4 is an arc surface, and the arc surface is in contact to prevent jamming.

The contact length between the connecting piece 2-2 and the pendulum rod 2-3 is 2-4 mm, and a shorter contact distance can reduce the separation distance.

The disc spring guide post 1-3 includes a bearing plate and a guide column, the bearing plate is arranged on the top end of the guide column, and the upper end of the disc spring 1-4 abuts on the lower surface of the bearing plate.

A lubricating layer is applied at the contact between the ejector rod 2-4 and the T-shaped pendulum rod, so that the direct-acting electromagnet 2-1 can complete the unlocking of the mechanism with a small driving force.

The working process of an electromagnetically driven black box throwing and separating mechanism:

When the aircraft flies normally, the black box 4 is in a locked state, that is, the direct-acting electromagnet 2-1 remains in an extended state, the ejector rod 2-4 restricts the swing of the pendulum rod 2-3, and the connecting plate of the connecting piece 2-2 is installed on the black box. 4, the inclined surface of the bending plate of the connecting piece 2-2 is matched with the inclined surface of the swing rod 2-3, and the inclined surface sections of the swing rod 2-3 of the plurality of actuating assemblies 2 are in contact with the inclined surface of the connecting piece 2-2. , lock the black box 4, and the disc springs 1-4 located in the middle of the adapter seat 3 are in a compressed state.

After the plane crashed, when the plane received the release separation signal, the direct-acting electromagnet 2-1 was energized and retracted, driving the ejector rod 2-4 to retract, releasing the restraint on the horizontal section of the pendulum rod 2-3. Under the action of the elastic force of 1-4, the disc spring guide post 1-3 moves upward, and the spring guide post 1-3 drives the limit sleeve 1-2 to move upward synchronously. When the top of the limit sleeve 1-2 contacts the limit shoulder 1 At -5, the limit sleeve 1-2 is limited, the disc spring guide post 1-3 is limited, the black box 4 continues to be thrown under the action of inertia, the pendulum rod 2-3 is passively rotated, and the ejection action is completed, the black box 4 After being ejected, the black box 4 is synchronously separated with the connecting piece 2-2.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (8)

1. The utility model provides an electromagnetic drive's black box throws separating mechanism which characterized in that: the ejection mechanism comprises an ejection assembly (1) and an actuating assembly (2) which are arranged on an adapter (3), wherein the adapter (3) is fixed on an airplane body, the ejection assembly (1) is arranged at the center of the adapter (3), at least two groups of actuating assemblies (2) are arranged and are uniformly arranged around the adapter, and the actuating assemblies are arranged at the periphery of a black box (4);

the ejection assembly (1) comprises a disc spring mounting seat (1-1), a limiting sleeve (1-2), a disc spring guide post (1-3) and a disc spring (1-4), the disc spring mounting seat (1-1) is fixed on the adapter (3), the disc spring mounting seat (1-1) is of a sleeve structure, a limiting shoulder (1-5) is fixedly arranged on the upper portion of the inner wall of the disc spring mounting seat (1-1), the limiting sleeve (1-2) is arranged in the disc spring mounting seat (1-1) in a sliding mode and located below the limiting shoulder (1-5), the limiting shoulder (1-5) limits axial displacement of the limiting sleeve (1-2), the middle lower portion of the disc spring guide post (1-3) extends into an inner cavity of the disc spring mounting seat (1-1), and the bottom end of the disc spring guide post (1-3) is fixedly connected with the limiting sleeve (1-2), the top end of the spring guide post (1-3) is propped against the bottom end of the black box (4);

the disc spring (1-4) is sleeved on the disc spring guide post (1-3), the lower end of the disc spring (1-4) abuts against the limiting shoulder (1-5), the upper end of the disc spring guide post (1-3) abuts against the upper end of the disc spring guide post, the disc spring (1-4) is in a compressed state in the flight process of an airplane, and a gap is reserved between the limiting sleeve (1-2) and the limiting shoulder (1-5);

each actuating component (2) comprises a direct-acting electromagnet (2-1), a connecting piece (2-2), a swing rod (2-3), a push rod (2-4) and a rotating shaft (2-5), the direct-acting electromagnet (2-1) is arranged on the outer side of the swing rod (2-3), the swing rod is T-shaped, the horizontal part of the T-shaped swing rod comprises an inclined section and a horizontal section, the vertical part of the T-shaped swing rod is arranged on the adapter through the rotating shaft (2-5), the inclined section is in contact fit with the inclined plane of the connecting piece (2-2), the horizontal section is in contact with the side surface of the push rod (2-4), the push rod (2-4) is fixed on the executing end of the vertically arranged direct-acting electromagnet (2-1), and when the direct-acting electromagnet (2-1) keeps an extending state, the ejector rod (2-4) limits the swing rod (2-3) to swing, and the connecting piece (2-2) is arranged on the black box (4).

2. An electromagnetically driven black box ejecting and separating mechanism as claimed in claim 1, wherein: the connecting piece (2-2) comprises a connecting plate and a bending plate, the bending plate is arranged at the bottom of the connecting plate, an opening of the bending plate is arranged towards the swing rod, the upper part of the bending plate is a straight plate, the lower part of the bending plate is an inclined plate, and the inclined plate at the lower part of the bending plate is matched with the lower surface of the inclined section of the swing rod (2-3).

3. An electromagnetically driven black box ejecting and separating mechanism as claimed in claim 1, wherein: the ejector rod (2-4) is guided and limited by the side wall of the adapter (3).

4. An electromagnetically driven black box ejecting and separating mechanism as claimed in claim 2, wherein: the inclined plane and the vertical plane of the connecting piece (2-2) contacted with the swing rod (2-3) form an included angle of 60-80 degrees.

5. An electromagnetically driven black box ejecting and separating mechanism as claimed in claim 1, wherein: the contact surface of the horizontal section and the side surface of the ejector rod (2-4) is an arc surface.

6. An electromagnetically driven black box ejecting and separating mechanism as claimed in claim 5, wherein: the top of slope section and the top parallel and level of horizontal segment, the bottom of slope section is less than the bottom of horizontal segment arranges.

7. An electromagnetically driven black box ejecting and separating mechanism as claimed in claim 1, wherein: the disc spring guide post (1-3) comprises a bearing plate and a guide post, the bearing plate is arranged at the top end of the guide post, and the upper end of the disc spring (1-4) abuts against the lower surface of the bearing plate.

8. An electromagnetically driven black box throwing and separating mechanism as claimed in any one of claims 1 to 7, wherein: and a lubricating layer is coated at the contact part of the ejector rod (2-4) and the T-shaped swing rod.

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