CN108223688A - A kind of electricity piece integrated form damping device and rocket - Google Patents

Abstract

The invention provides an electric component integrated shock absorbing device, which relates to the technical field of aerospace. The shock absorbing device integrated with electrical components includes an upper connection frame, a lower connection frame, an installation frame and several multi-directional shock absorbers; the upper connection frame and the lower connection frame are arranged in parallel, and the installation frame is arranged between the upper connection frame and the lower connection frame ;The upper connection frame is installed on the upper end surface of the installation frame through the multi-directional shock absorber, and the lower connection frame is installed on the lower end surface of the installation frame through the multi-directional shock absorber; the multi-directional shock absorber is strip-shaped and used to buffer its own axial and circumferential vibration. The electric component integrated shock absorber of the present invention has a compact structure and takes up little installation space; the multi-directional shock absorber capable of buffering its own axial and circumferential vibrations can absorb the circumferential and axial vibrations from the upper connection frame or the lower connection frame. The directional vibration is weakened as much as possible, and the anti-vibration ability of the electrical parts on the installation frame is improved. On this basis, the invention also provides a rocket.

Description

An electrical parts integrated shock absorbing device and a rocket

technical field

The invention relates to the field of aerospace technology, in particular to an electric component integrated damping device and a rocket.

Background technique

Supersonic vehicles such as rockets and missiles are affected by various factors during flight, which inevitably produces vibrations. Strong vibrations will cause dynamic displacement of the vehicle itself and its internal components.

Since very precise electrical equipment such as GPS and inertial navigation are installed in the supersonic vehicle, in order to maintain sufficient accuracy and reliability of the above-mentioned precision equipment and instruments during flight, high requirements are placed on the internal working environment of the vehicle. Among them, the harsh vibration environment is one of the main factors that lead to the failure of key electrical equipment and the failure of rockets and missiles during flight. Therefore, it is particularly important to damp the electrical equipment in the aircraft.

In the prior art, there are usually two kinds of shock absorption methods commonly used on aircraft: one is a single-side mounted shock absorber base. Such a technical solution design not only has poor shock absorption effect, but also provides extremely limited equipment installation space. Another commonly used shock absorbing method is a spring-type shock absorbing base. In the technical solution of this shock absorbing method, the shock absorbing structure is relatively complicated and the volume is large, and it is often difficult to repeatedly install and disassemble, and the lateral shock absorbing effect is poor.

Therefore, how to improve the shock absorption effect, ensure the installation space of the equipment, and improve the horizontal and vertical cushioning effects of the shock absorption equipment are problems to be solved urgently by those skilled in the art.

Contents of the invention

The object of the present invention is to provide an electric component integrated shock absorber and a rocket, so as to solve the problems of poor lateral shock absorbing effect and small installation space of supersonic aircraft such as rockets and missiles in the prior art during flight.

In order to achieve the above object, the present invention adopts the following technical solutions:

The invention provides an integrated shock absorber for electric parts, which includes an upper connection frame, a lower connection frame, a mounting frame and several multi-directional shock absorbers; the upper connection frame and the lower connection frame are arranged in parallel, and the installation The frame is arranged between the upper connection frame and the lower connection frame; the upper connection frame is installed on the upper end surface of the installation frame through the multi-directional shock absorber, and the lower connection frame is The shock absorber is installed on the lower end surface of the installation frame; the multi-directional shock absorber is strip-shaped and used for buffering its own axial and circumferential vibrations.

Further, the installation frame includes an upper shock absorbing plate, a mounting panel and a lower shock absorbing plate connected in sequence; the upper shock absorbing plate and the upper connection frame are bonded and connected through the multi-directional shock absorber, and the lower shock absorber The shock-absorbing plate and the lower connection frame are bonded and connected through the multi-directional shock absorber; the mounting panel is perpendicular to the upper shock-absorbing plate. The technical effect of this technical solution is that the upper damping plate and the lower damping plate are respectively used to connect the upper connection frame and the lower connection frame, and realize horizontal and vertical vibration buffering, while the installation panel is used for placing and arranging electrical components. Since the mounting panel is perpendicular to the upper shock absorbing plate, and the upper shock absorbing plate and the lower shock absorbing plate are parallel to each other, the mounting panel is vertically arranged between the upper shock absorbing plate and the lower shock absorbing plate, and the available installation space is very large.

Further, the upper connection frame is provided with a plurality of connection through holes corresponding to the upper shock absorbing plate, and the lower connection frame is provided with a plurality of connection through holes corresponding to the lower shock absorbing plate; any one of the multi-directional The shock absorber is installed in cooperation with the two correspondingly provided connecting through holes. The technical effect of this technical solution is that: two connection through holes are set correspondingly, one is located on the installation base (that is, the upper connection frame or the lower connection frame), and is used to fix the installation frame together with the multi-directional shock absorber; the other is set On the installation frame (that is, the upper shock absorber or the lower shock absorber), it is used together with the multi-directional shock absorber to buffer the lateral and longitudinal vibrations from the upper connection frame or the lower connection frame.

Further, the end surface of the connection through hole is provided with a counterbore. The technical effect of the technical solution is that the counterbore is a structure capable of completely sinking the fastener into the equipment installation layer. The counterbore design, on the one hand, increases the installation space of electrical components on the installation panel, and on the other hand, prevents the multi-directional shock absorber from being worn during installation and use.

Further, the multi-directional shock absorber includes fastening screws, limit nuts and two stepped shock absorbing pads; the stepped shock absorbing pads are provided with a central hole adapted to the outer diameter of the fastening screws, and The peripheral dimension of the stepped shock absorbing pad is stepped along the length direction of the central hole; the two stepped shock absorbing pads are elastic and arranged coaxially; the fastening screws pass through one of the stepped shock absorbing pads in sequence , one of the connection through holes, the other of the stepped shock absorbing pads, and the stop nut are screwed to the other of the connecting through holes, and the small-sized ends of the two stepped shock absorbing pads are arranged opposite to each other. The technical effect of this technical solution lies in: since the small-sized ends of the two stepped shock absorbing pads are arranged oppositely, the elastic clamping structure is formed by the cooperation of the two stepped shock absorbing pads, which can effectively suppress multi-directional vibrations to adapt to complex and changeable vibration environment, and has the advantages of easy disassembly and installation, reusable, low maintenance cost, simple and compact structure, etc.

Further, the two stepped shock absorbing pads are both ring-shaped. The technical effect of the technical solution is that the ring-shaped stepped shock-absorbing pad has isotropic balance than the rectangular and polygonal stepped shock-absorbing pad, and its shock-absorbing and shock-absorbing effect is more uniform and symmetrical.

Further, the two stepped damping pads are both made of rubber. The technical effect of the technical solution is that the stepped shock absorbing pad made of rubber is mature in technology, low in cost, accurate in forming, and reliable and durable.

Further, a mounting screw is also included, and the fastening screw is provided with an axial through hole; the mounting screw passes through the axial through hole and is used for screwing with the connecting through hole. The technical effect of this technical solution is: the mounting screw passes through the axial through hole of the fastening screw, and is screwed with the connecting through hole on the installation base (that is, the upper connection frame or the lower connection frame), thus avoiding the direct connection of the fastening screw. The connection with the installation base improves the lateral shock absorption effect of the installation frame.

The present invention also provides a rocket, including a rocket body and the above-mentioned integrated shock absorbing device for electrical components; the integrated shock absorbing device for electrical components is fixedly installed on the rocket body through the upper connection frame and the lower connection frame of the inner cavity.

Further, it also includes a plurality of reinforcement ribs; a plurality of reinforcement ribs are distributed along the circumference of the upper connection frame, and the upper end and lower end of any one of the reinforcement ribs are respectively fixedly connected to the upper connection frame and the lower connection frame , the outer end surface of any one of the reinforcing ribs is fixedly arranged on the inner wall of the rocket. The technical effect of this technical solution is that the ribs are used to enhance the stability effect of the installation of the upper connection frame, the lower connection frame and the rocket body.

The beneficial effects of the present invention are:

1. The integrated shock absorber of electrical parts utilizes the multi-directional shock absorber that can buffer its own axial and circumferential vibrations, and weakens the circumferential and axial vibrations from the upper connection frame or the lower connection frame as much as possible, improving the installation efficiency. Vibration resistance of electrical parts on the frame.

2. The integrated shock absorbing device for electrical parts adopts the upper connection frame and the lower connection frame to connect the installation frame through multi-directional shock absorbers to achieve circumferential and axial shock absorption effects (that is, including horizontal and longitudinal buffer effects), The structure is compact, and the installation space is small, which ensures the installation space of other functional equipment.

3. The rocket increases the available internal installation space, improves the vibration tolerance of precision electrical equipment, and ensures that the instruments and equipment in the rocket body have a reliable shock absorption effect. .

Description of drawings

In order to more clearly illustrate the technical solutions of the specific embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments. Apparently, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a perspective view of an electric component integrated shock absorbing device provided by an embodiment of the present invention;

Fig. 2 is a side view of the electric component integrated shock absorbing device provided by the embodiment of the present invention;

Fig. 3 is a sectional view along A-A in Fig. 2;

Fig. 4 is a perspective view of the installation frame of the electric component integrated shock absorbing device provided by the embodiment of the present invention;

Fig. 5 is a perspective view of the upper connection frame of the electric component integrated shock absorbing device provided by the embodiment of the present invention;

Fig. 6 is a perspective view of the multi-directional shock absorber of the electrical component integrated shock absorber provided by the embodiment of the present invention;

Fig. 7 is an axial sectional view of the multi-directional shock absorber of the electrical component integrated shock absorber provided by the embodiment of the present invention.

Reference signs:

1-upper connection frame; 2-lower connection frame; 3-upper damping plate;

4-installation panel; 5-lower damping plate; 6-connection through hole;

7-counterbore; 8-fastening screw; 9-limit nut;

10-step damping pad; 11-mounting screw; 12-reinforcing rib.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Description of prior art:

Supersonic vehicles such as rockets and missiles are affected by various factors during flight, which inevitably produces vibrations. Strong vibrations will cause dynamic displacement of the vehicle itself and its internal components.

Since very precise electrical equipment such as GPS and inertial navigation are installed in the supersonic vehicle, in order to maintain sufficient accuracy and reliability of the above-mentioned precision equipment and instruments during flight, high requirements are placed on the internal working environment of the vehicle. Among them, the harsh vibration environment is one of the main factors that lead to the failure of key electrical equipment and the failure of rockets and missiles during flight. Therefore, it is particularly important to damp the electrical equipment in the aircraft.

In the prior art, there are usually two kinds of shock absorption methods commonly used on aircraft: one is a single-side mounted shock absorber base. Such a technical solution design not only has poor shock absorption effect, but also provides extremely limited equipment installation space. Another commonly used shock absorbing method is a spring-type shock absorbing base. In the technical solution of this shock absorbing method, the shock absorbing structure is relatively complicated and the volume is large, and it is often difficult to repeatedly install and disassemble, and the lateral shock absorbing effect is poor.

Therefore, how to improve the shock absorption effect, ensure the installation space of the equipment, and improve the horizontal and vertical cushioning effects of the shock absorption equipment are problems to be solved urgently by those skilled in the art.

Specific embodiments of the invention:

This embodiment provides an electrical component integrated shock absorber, wherein: Figure 1 is a perspective view of the electrical component integrated shock absorber provided by the embodiment of the present invention; Figure 2 is the electrical component integrated shock absorber provided by the embodiment of the present invention Device side view; Figure 3 is a cross-sectional view along A-A in Figure 2 . As shown in Figures 1 to 3, the electric component integrated shock absorber includes an upper connection frame 1, a lower connection frame 2, an installation frame and several multi-directional shock absorbers. Specifically, the upper connection frame 1 and the lower connection frame 2 are arranged in parallel, and the installation frame is arranged between the upper connection frame 1 and the lower connection frame 2; the upper connection frame 1 is installed on the upper end surface of the installation frame through a multi-directional shock absorber, and the lower The connecting frame 2 is installed on the lower end surface of the installation frame through a multi-directional shock absorber; the multi-directional shock absorber is in the shape of a bar and is used to buffer its own axial and circumferential vibrations.

The electric component integrated shock absorbing device provided by the present invention can better solve the problems of poor lateral shock absorbing effect and small installation space of supersonic aircraft such as rockets and missiles in the prior art during flight: firstly, the electric The component-integrated damping device utilizes the multi-directional shock absorber that can buffer its own axial and circumferential vibrations, and weakens the circumferential and axial vibrations from the upper connection frame 1 or the lower connection frame 2 as much as possible, improving the installation frame. The anti-vibration ability of the electrical parts on it. Secondly, the integrated shock absorbing device for electrical components uses the upper connection frame 1 and the lower connection frame 2 to connect the installation frame through multi-directional shock absorbers to achieve circumferential and axial shock absorption effects (that is, including transverse and longitudinal buffer effects). ), compact structure, small installation space, ensuring the installation space of other functional equipment.

On the basis of the above embodiments, Fig. 4 is a perspective view of the installation frame of the electrical component integrated shock absorbing device provided by the embodiment of the present invention, and Fig. 5 is the upper connection frame of the electrical component integrated shock absorbing device provided by the embodiment of the present invention 1 stereogram. As shown in FIGS. 1-5 , further, the installation frame includes an upper damping plate 3 , an installation panel 4 and a lower damping plate 5 connected in sequence. Specifically, the upper shock absorbing plate 3 and the upper connection frame 1 are fitted and connected by a multi-directional shock absorber, and the lower shock absorbing plate 5 and the lower connection frame 2 are fitted and connected by a multi-directional shock absorber; the mounting panel 4 is perpendicular to the upper shock absorber. Shock plate 3. In the electrical parts integrated shock absorber of this structure, the upper shock absorber 3 and the lower shock absorber 5 are respectively used to connect the upper connection frame 1 and the lower connection frame 2, and realize horizontal and vertical vibration buffering, while the mounting panel 4 It is used to place and arrange electrical components. Since the mounting panel 4 is perpendicular to the upper shock absorbing plate 3, and the upper shock absorbing plate 3 and the lower shock absorbing plate 5 are parallel to each other, the mounting panel 4 is vertically arranged between the upper shock absorbing plate 3 and the lower shock absorbing plate 5, which can The installation space utilized is very generous.

On the basis of the above embodiments, as shown in Figures 1 to 5, further, the upper connection frame 1 and the upper shock absorbing plate 3 are provided with a plurality of connection through holes 6 correspondingly, and the lower connecting frame 2 corresponds to the lower shock absorbing plate 5 A plurality of connection through holes 6 are provided; any one of the multi-directional shock absorbers is installed in cooperation with two correspondingly provided connection through holes 6 . In the electric component integrated shock absorber of this structure, two connection through holes 6 are provided correspondingly, one is located on the installation base (that is, the upper connection frame 1 or the lower connection frame 2), and is used together with the multi-directional shock absorber. Fix the installation frame; the other is set on the installation frame (ie, the upper shock absorber 3 or the lower shock absorber 5), and is used together with the multi-directional shock absorber to buffer the horizontal and vertical shock from the upper connection frame 1 or the lower connection frame 2. vibration.

On the basis of the above embodiments, as shown in FIGS. 4 and 5 , further, a counterbore 7 is provided on the end surface of the connection through hole 6 . The counterbore 7 in the electric parts integrated shock absorbing device of this structure is a structure that can fully sink the fastener into the equipment installation layer. The design of the counterbore 7 increases the installation space of the electrical parts on the installation panel 4 on the one hand, and prevents the multi-directional shock absorber from being worn during installation and use on the other hand.

On the basis of the above embodiments, Fig. 6 is a perspective view of the multi-directional shock absorber of the electrical component integrated shock absorber provided by the embodiment of the present invention; Fig. 7 is a perspective view of the electrical component integrated shock absorber provided by the embodiment of the present invention Axial sectional view of the multi-directional shock absorber. As shown in FIGS. 6 and 7 , further, the multidirectional shock absorber includes fastening screws 8 , limit nuts 9 and two stepped shock absorbers 10 . Specifically, the stepped shock absorbing pad 10 is provided with a central hole adapted to the outer diameter of the fastening screw 8, and the peripheral dimension of the stepped shock absorbing pad 10 is stepped along the length direction of the central hole; two stepped shock absorbing pads 10 is elastic and arranged coaxially; the fastening screw 8 passes through a stepped shock absorbing pad 10, a connecting through hole 6, another stepped shock absorbing pad 10, and a limit nut 9 in turn, and is screwed to the other connecting through hole 6, And the small-sized ends of the two stepped shock absorbing pads 10 are arranged opposite to each other. In the electric component integrated shock absorber with this structure, since the small-size ends of the two stepped shock absorbing pads 10 are arranged opposite to each other, the cooperation of the two stepped shock absorbing pads 10 forms an elastic clamping structure, which can effectively suppress multi-directional vibrations , to adapt to the complex and changeable vibration environment, and has the advantages of convenient disassembly and installation, reusable, low maintenance cost, simple and compact structure, etc.

On the basis of the above embodiments, as shown in Figures 6 and 7, further, the two stepped shock absorbing pads 10 are both ring-shaped. In the electric parts integrated shock absorbing device with this structure, the annular stepped shock absorbing pad 10 has isotropic balance compared with the rectangular and polygonal stepped shock absorbing pad 10 , and its shock absorbing effect is more uniform and symmetrical.

On the basis of the above embodiments, further, the two stepped shock absorbing pads 10 are made of rubber. The stepped shock absorbing pad 10 made of rubber is mature in technology, low in cost, precise in forming, reliable and durable.

On the basis of the above embodiments, as shown in Figures 1, 6, and 7, further, the electric parts integrated shock absorber is also provided with mounting screws 11, and the fastening screws 8 are provided with axial through holes; the mounting screws 11 Through the axial through hole, it is used for screw connection with the connecting through hole 6. In the electric component integrated shock absorber of this structure, the mounting screw 11 passes through the axial through hole of the fastening screw 8, and is screwed with the connecting through hole 6 on the mounting base (that is, the upper connection frame 1 or the lower connection frame 2). If it is connected, the direct connection between the fastening screw 8 and the installation base is avoided, and the lateral shock absorption effect of the installation frame is improved.

The present invention also provides a rocket. The rocket provided in this embodiment includes a rocket body and the above-mentioned integrated damping device for electrical components; the integrated damping device for electrical components is fixedly installed on the rocket through the upper connection frame 1 and the lower connection frame 2 The lumen of the main body.

On the basis of the above-mentioned embodiments, as shown in Figures 1, 2, and 3, further, the rocket is also provided with a plurality of ribs 12; the plurality of ribs 12 are distributed along the circumference of the upper connection frame 1, and any rib The upper end and the lower end of 12 are fixedly connected to the upper connection frame 1 and the lower connection frame 2 respectively, and the outer end surface of any one of the ribs 12 is fixedly arranged on the inner wall of the rocket. In this structural design, the ribs 12 are used to enhance the stability of the installation of the upper connection frame 1 , the lower connection frame 2 and the rocket body.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. An electric component integrated shock absorber, characterized in that it comprises an upper connection frame, a lower connection frame, a mounting frame and several multi-directional shock absorbers; The upper connection frame and the lower connection frame are arranged in parallel, and the installation frame is arranged between the upper connection frame and the lower connection frame; The upper connection frame is installed on the upper end surface of the installation frame through the multidirectional shock absorber, and the lower connection frame is installed on the lower end surface of the installation frame through the multidirectional shock absorber; The multi-directional shock absorber is strip-shaped and used for buffering its own axial and circumferential vibrations. 2. The electrical component integrated shock absorber according to claim 1, wherein the installation frame includes an upper shock absorber, a mounting panel and a lower shock absorber connected in sequence; the upper shock absorber and the The above connecting frame is fitted and connected through the multidirectional shock absorber, and the lower shock absorbing plate and the lower connection frame are fitted and connected through the multidirectional shock absorber; the installation panel is perpendicular to the upper shock absorber Vibration plate. 3. The electric component integrated shock absorber according to claim 2, characterized in that, the upper connection frame and the upper shock absorbing plate are provided with a plurality of connection through holes correspondingly, and the lower connection frame and the The lower damping plate is correspondingly provided with a plurality of connection through holes; Any one of the multi-directional shock absorbers is installed in cooperation with the two correspondingly provided connecting through holes. 4 . The shock absorbing device integrated with electrical components according to claim 3 , wherein a counterbore is provided on the end surface of the connection through hole. 4 . 5. The electrical component integrated shock absorber according to claim 3, wherein the multi-directional shock absorber includes fastening screws, limit nuts and two stepped shock absorbers; The stepped shock absorbing pad is provided with a central hole matching the outer diameter of the fastening screw, and the outer dimension of the stepped shock absorbing pad is stepped along the length direction of the central hole; The two stepped damping pads are elastic and arranged coaxially; The fastening screws sequentially pass through one of the stepped shock absorbing pads, one of the connecting through holes, the other of the stepped shock absorbing pads, and the limit nut, and are screwed to the other of the connecting through holes, and the two The small-size ends of the two ladder shock absorbing pads are oppositely arranged. 6 . The shock absorbing device integrated with electrical components according to claim 5 , wherein the two stepped shock absorbing pads are both ring-shaped. 7 . 7. The shock absorbing device integrated with electric parts according to claim 5, characterized in that, the two stepped shock absorbing pads are both made of rubber. 8. The shock absorbing device integrated with electrical components according to claim 5, further comprising mounting screws, and the fastening screws are provided with axial through holes; The mounting screw passes through the axial through hole and is used for screwing with the connecting through hole. 9. A rocket, characterized in that it comprises a rocket body and the electrical component-integrated damping device according to any one of claims 1 to 8; the electrical component-integrated damping device passes through the upper connection frame and The lower connection frame is fixedly installed in the inner cavity of the rocket main body. 10. The rocket according to claim 9, further comprising a plurality of reinforcing ribs; a plurality of reinforcing ribs are distributed along the circumference of the upper connecting frame, and the upper end and the lower end of any one of the reinforcing ribs are respectively The upper connection frame and the lower connection frame are fixedly connected, and the outer end surface of any one of the reinforcing ribs is fixedly arranged on the inner wall of the rocket.