A vibration and shock source connection and installation damping and shock reduction device

Abstract

The present invention relates to a vibration and shock reduction device for connecting and installing a vibration shock source, including a shock source mounting plate for connecting and installing the vibration shock source onto the mounting plane of a corresponding mounting structure; a support mechanism comprising a number of support shaft members evenly distributed and installed on the mounting plane of the mounting structure, with a number of corresponding first damping particles filled in the mounting cavities of the support shaft members respectively; a connection mechanism, wherein a number of guide holes sleeving the support shaft members are provided on the shock source mounting plate, and the connection mechanism comprises connection sleeves sleeved on the upper parts of the support shaft members, the bottoms of the connection sleeves are respectively fixed to the corresponding guide holes, and the tops of the connection sleeves are integrally formed and connected with fixing plates fixed to the tops of the support shaft members. The present invention can connect and install the vibration shock source to a corresponding mounting structure, and can effectively form a sufficient vibration and shock reduction effect.

Description

Technical Field

[0001] The present invention relates to a vibration and shock source connection and installation damping and shock reduction device, which is mainly used to connect and install a vibration and shock source to a corresponding installation structure, and can effectively form a sufficient vibration and shock reduction effect. Background Art

[0002] Generally, a relatively large number of precision sensors or data acquisition instruments are fixedly installed on the corresponding installation structures of existing spacecrafts to facilitate the normal operation of the spacecrafts and collect relevant data. Moreover, in order to meet the deployment requirements of relevant components of the spacecrafts, a pyrotechnic separation device (vibration and shock source) is generally configured on the installation structure where the precision sensors or data acquisition instruments are installed. The explosion shock wave generated during the operation of the pyrotechnic separation device will affect the performance of nearby precision and sensitive components, and may even cause failure in severe cases.

[0003] In order to reduce the vibration and shock amount of the explosion shock wave on nearby precision and sensitive components during the operation of the pyrotechnic separation device, the existing method is to install a particle damper on the installation plane between the precision and sensitive components and the pyrotechnic separation device, that is, to set an isolation cavity or isolation groove on the installation plane, and then fill damping particles in the isolation cavity or isolation groove. Through the friction energy consumption between the damping particles, the vibration and shock amount of the explosion shock wave on the precision and sensitive components is reduced. However, in this way, the installation structures of the precision and sensitive components and the pyrotechnic separation device will be structurally damaged, which is not only troublesome but also easily destroys the structural stability of the original installation structure.

[0004] Therefore, on the basis of not damaging the installation structure of the spacecraft, the research purpose of the present invention is to design a vibration and shock source connection and installation damping and shock reduction device that can effectively connect and install the vibration and shock source to the corresponding installation structure of the spacecraft and can effectively form an obvious vibration and shock reduction effect. Summary of the Invention

[0005] In view of the above technical problems existing in the prior art, the present invention provides a vibration and shock source connection and installation damping and shock reduction device, which can effectively solve the above technical problems existing in the prior art.

[0006] The technical solution of the present invention is as follows:

[0007] A vibration and shock source connection and installation damping and shock reduction device, comprising

[0008] a shock source mounting plate for connecting and installing a vibration and shock source to the installation plane of a corresponding installation structure, and the vibration and shock source fixing device is used on the side of the shock source mounting plate facing away from the installation structure;

[0009] The support mechanism includes several support shaft members evenly distributed and installed on the installation plane of the installation structure. An installation cavity communicating with the bottom end of each support shaft member is respectively provided in the middle of the support shaft members. A number of corresponding first damping particles are respectively filled in the installation cavities. Sealing plates for closing the installation cavities are respectively fixedly connected to the bottoms of the support shaft members, and the bottom surfaces of the sealing plates are respectively fixedly connected to the installation plane of the installation structure.

[0010] The connection mechanism: A number of guide holes sleeving the support shaft members are provided on the impact source mounting plate, and there are intervals between the guide holes and the support shaft members respectively. The connection mechanism includes connection sleeves sleeving the upper parts of the support shaft members. The bottoms of the connection sleeves are respectively fixedly connected to the corresponding guide holes, and fixing plates fixedly connected to the tops of the support shaft members are integrally formed and connected to the tops of the connection sleeves respectively.

[0011] It further includes a vibration damping and strengthening mechanism. Damping member installation grooves are respectively concavely provided on the outer side walls of the support shaft members. The vibration damping and strengthening mechanism includes several arc-shaped ceramic sheets abutted in the damping member installation grooves. The outer side walls of the support shaft members and the arc-shaped ceramic sheets are coated with a coating film for fixing the arc-shaped ceramic sheets.

[0012] The thickness of the arc-shaped ceramic sheet does not exceed 5 mm.

[0013] The coating film is heat-shrunk and covered on the outer side walls of the support shaft members and the arc-shaped ceramic sheets by a heat covering method.

[0014] A corresponding accommodation groove is integrally formed on the outer side wall of the connection sleeve. A corresponding fixing ring plate is integrally formed and provided outward at the notch of the accommodation groove. The fixing ring plate is fixedly connected to the impact source mounting plate, and a number of corresponding second damping particles are filled in the accommodation groove.

[0015] The fixing ring plate is fixedly connected to the impact source mounting plate by an adhesive method or a bolt fixing method.

[0016] The outer side surface of the bottom of the connection sleeve is serrated, and the guide holes of the impact source mounting plate and the bottom of the connection sleeve are fixedly connected by corresponding foaming adhesives respectively.

[0017] The sealing plate is fixedly connected to the installation plane of the installation structure by an adhesive method or a bolt fixing method.

[0018] The fixing plate is fixedly connected to the top of the support shaft member by an adhesive method or a bolt fixing method.

[0019] The impact source mounting plate includes honeycomb core grids, and skins are respectively fixedly connected to the upper and lower side surfaces and the periphery of the honeycomb core grids by an adhesive method.

[0020] Advantages of the present invention:

[0021] 1) The present invention is provided with a support mechanism, which includes a number of support shaft members evenly distributed and installed on the installation structure of the spacecraft. Then, through the cooperation of the guide holes correspondingly arranged on the impact source mounting plate and the support shaft members, the support shaft members effectively penetrate and extend to the upper side of the impact source mounting plate. Then, a connection mechanism is arranged on the impact source mounting plate. Under the action of the connection mechanism, that is, the connection sleeve with a fixed plate, the fixed assembly between the impact source mounting plate and the support shaft members, that is, the fixed assembly between the impact source mounting plate and the installation structure, is realized, so as to effectively connect and install the vibration impact source to the corresponding installation structure of the spacecraft.

[0022] After the assembly is in place, under the action of the support shaft members and the connection sleeve with a fixed plate, the explosion shock wave generated by the explosion of the vibration impact source needs to be conducted through the impact source mounting plate to the connection sleeve, and then, through the connection sleeve to the support shaft members, and then from the support shaft members to the installation structure of the spacecraft, so as to effectively extend the transmission path of the explosion shock wave by a large margin. The energy consumption formed during the transmission process can initially form a vibration and shock reduction effect. In addition, a number of corresponding first damping particles are respectively filled in the installation cavities of the support shaft members of the present invention. The vibration and shock amount transmitted from the impact source mounting plate to the installation structure of the spacecraft can be further significantly reduced through the friction energy consumption between the first damping particles, and further improve the vibration and shock reduction effect, so as to greatly reduce the damage caused by the explosion shock wave to the precision sensors or data acquisition instruments on the installation structure of the spacecraft.

[0023] 2) During the transmission process of the explosion shock wave, since the first damping particles are mainly concentrated in the installation cavities of the support shaft members, they are mainly used for forming overall energy consumption. However, their energy consumption effect on the explosion shock wave conducted through the surface of the support shaft members is relatively weak. Therefore, the present invention further includes a vibration and shock strengthening mechanism, which includes a number of arc-shaped ceramic sheets abutted in the vibration damping member installation grooves of the support shaft members, and the outer side walls of the support shaft members and the arc-shaped ceramic sheets are coated with a coating film for fixing the arc-shaped ceramic sheets.

[0024] Under the action of the coating film, the arc-shaped ceramic sheets can be effectively attached to the support shaft members. When the explosion shock wave is conducted through the surface of the support shaft members, it can shatter the arc-shaped ceramic sheets to form an energy consumption effect, so as to greatly reduce the explosion shock wave conducted through the surface of the support shaft members. The shattered arc-shaped ceramic sheets will not cause problems such as scattering under the action of the coating film. Thus, the vibration and shock reduction effect of the present invention can be effectively further improved by a large margin on the premise of ensuring the practical effect.

[0025] 3) The thickness of the arc-shaped ceramic thin sheet of the present invention does not exceed 5 mm, so as to effectively ensure that the arc-shaped ceramic thin sheet can be smoothly fragmented when the explosion shock wave conducts through the surface of the support shaft member, so as to form a sufficient energy dissipation effect; the coating film is heat-shrunk and covered on the outer side walls of the support shaft member and the arc-shaped ceramic thin sheet by a heat covering method, so as to ensure that the coating film can be effectively attached to the outer side walls of the support shaft member and the arc-shaped ceramic thin sheet after being assembled in place, thereby ensuring the fixing effect on the fragmented arc-shaped ceramic thin sheet.

[0026] 4) An accommodating groove is integrally formed on the outer side wall of the connecting sleeve of the present invention. A corresponding fixing ring plate is integrally formed and extends outward at the notch of the accommodating groove. The fixing ring plate is fixed to the shock source mounting plate, and a plurality of corresponding second damping particles are filled in the accommodating groove.

[0027] Through the arrangement of the second damping particles, the explosion shock wave conducting through the connecting sleeve is effectively subjected to an energy dissipation operation, thereby effectively further improving the vibration reduction and shock reduction effect of the present invention; and with the intervention of the fixing ring plate, the assembly stability between the connecting sleeve and the shock source mounting plate can be further improved, so as to improve the practical effect of the present invention.

[0028] 5) The outer side surface of the bottom of the connecting sleeve of the present invention is serrated. The guide holes of the shock source mounting plate and the bottom of the connecting sleeve are fixedly connected through corresponding foaming adhesives respectively. The foaming adhesive after assembly effectively fills into the outer surface of the bottom of the serrated connecting sleeve, thereby effectively improving the structural stability of the present invention.

[0029] 6) The present invention also has the advantages of simple structure and compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of the present invention.

[0031] Figure 2 is a partial enlarged view of the present invention.

[0032] Figure 3 is a cross-sectional view of the shock source mounting plate. DETAILED DESCRIPTION OF THE INVENTION

[0033] For the convenience of those skilled in the art to understand, the embodiments will now be combined with the drawings to further describe the structure of the present invention in detail:

[0034] Refer to Figures 1-3 , a vibration shock source connection and installation vibration reduction and shock reduction device, including

[0035] The impact source mounting plate 1 is used to connect and mount the vibration impact source 2 onto the mounting plane of the corresponding mounting structure 3. The fixing device of the vibration impact source 2 is arranged on the side of the impact source mounting plate 2 facing away from the mounting structure 3.

[0036] (In this embodiment, the mounting structure 3 is a honeycomb panel, specifically, a skin is bonded to the outer surface of the honeycomb core. On the side of the mounting structure 3 where the vibration impact source 2 is not mounted, there is a corresponding precision sensitive component 8 fixed.)

[0037] The support mechanism 4 includes a number of support shaft members 401 evenly distributed on the mounting plane of the mounting structure 3. An installation cavity communicating with the bottom end of each support shaft member 401 is provided in the middle of the support shaft member 401. A number of corresponding first damping particles 402 are filled in each installation cavity. A sealing plate 403 for closing the installation cavity is fixedly connected to the bottom of each support shaft member 401, and the bottom surface of the sealing plate 403 is fixedly connected to the mounting plane of the mounting structure 3.

[0038] (In this embodiment, the sealing plate 403 is fixedly connected to the bottom of the support shaft member 401 by welding.)

[0039] The connection mechanism 5: A number of guide holes sleeved on the support shaft members 401 are provided on the impact source mounting plate 1. There is a gap between each guide hole and the corresponding support shaft member 401. The connection mechanism 5 includes connection sleeves 501 sleeved on the upper parts of the support shaft members 401. The bottom of each connection sleeve 501 is fixedly connected to the corresponding guide hole, and a fixing plate 502 fixedly connected to the top of the support shaft member 401 is integrally formed and connected to the top of each connection sleeve 501.

[0040] After being assembled in place, under the action of the support shaft members 401 and the connection sleeves 501 with the fixing plates 502, the explosion shock wave generated by the explosion of the vibration impact source 2 needs to be conducted through the impact source mounting plate 1 to the connection sleeve 501, then through the connection sleeve 501 to the support shaft member 401, and then from the support shaft member 401 to the mounting structure 3 of the spacecraft, so as to effectively and greatly extend the transmission path of the explosion shock wave. The energy consumption formed during the transmission process can initially form a vibration and shock reduction effect. In addition, in the installation cavity of the support shaft member 401 of the present invention, a number of corresponding first damping particles 402 are filled. Through the friction energy consumption between the first damping particles 402, the vibration and shock amount transmitted from the impact source mounting plate 1 to the mounting structure 3 of the spacecraft can be further greatly reduced, and further, the vibration and shock reduction effect can be improved, so as to greatly reduce the damage caused by the explosion shock wave to the precision sensitive component 8 on the mounting structure 3 of the spacecraft.

[0041] The present invention further includes a vibration damping and strengthening mechanism 6. The outer side wall of the support shaft member 401 is respectively concavely provided with corresponding vibration damping member mounting grooves. The vibration damping and strengthening mechanism 6 includes a plurality of arc-shaped ceramic flakes 601 that abut against the vibration damping member mounting grooves. The outer side walls of the support shaft member 401 and the arc-shaped ceramic flakes 601 are coated with a coating film 602 for fixing the arc-shaped ceramic flakes 601.

[0042] During the transmission process of the explosion shock wave, since the first damping particles 402 are mainly concentrated in the installation cavity of the support shaft member 401, they are mainly used for forming overall energy consumption. However, their energy consumption effect on the explosion shock wave conducting through the surface of the support shaft member 401 is relatively weak. Therefore, the present invention further includes a vibration damping and strengthening mechanism 6, which includes a plurality of arc-shaped ceramic flakes 601 that abut against the vibration damping member mounting grooves of the support shaft member 401, and the outer side walls of the support shaft member 401 and the arc-shaped ceramic flakes 601 are coated with a coating film 602 for fixing the arc-shaped ceramic flakes 601.

[0043] Under the action of the coating film 602, the arc-shaped ceramic flakes 601 can be effectively pressed against the support shaft member 401. When the explosion shock wave conducts through the surface of the support shaft member 401, it can shatter the arc-shaped ceramic flakes 601 to form an energy consumption effect, thereby greatly reducing the explosion shock wave conducting through the surface of the support shaft member 401. After the arc-shaped ceramic flakes 601 are shattered, under the action of the coating film 602, problems such as scattering will not occur. Thus, on the premise of ensuring the practical effect, the vibration damping and shock reduction effect of the present invention can be effectively further improved significantly.

[0044] The thickness of the arc-shaped ceramic flakes 601 is 3.8 mm, so as to effectively ensure that the arc-shaped ceramic flakes 601 can be smoothly shattered when the explosion shock wave conducts through the surface of the support shaft member 401 to form sufficient energy consumption effect.

[0045] The coating film 602 is heat-shrunk and covered on the outer side walls of the support shaft member 401 and the arc-shaped ceramic flakes 601 by a heat covering method. By using the heat covering method for coating, it is ensured that the coating film 602 can be effectively attached to the outer side walls of the support shaft member 401 and the arc-shaped ceramic flakes 601 after being assembled in place, so as to ensure the fixing effect on the shattered arc-shaped ceramic flakes 601.

[0046] The outer side wall of the connection sleeve 501 is integrally formed with a corresponding receiving groove. A corresponding fixing ring plate 5011 is integrally formed and extends outward at the notch of the receiving groove. The fixing ring plate 5011 is fixed to the shock source mounting plate 1, and a plurality of corresponding second damping particles 7 are filled in the receiving groove.

[0047] Through the arrangement of the second damping particle 7, it effectively forms an energy-consuming operation on the explosion shock wave conducted through the connection sleeve 501, thereby effectively further improving the vibration reduction and shock absorption effect of the present invention; and with the intervention of the fixed ring plate 502, the assembly stability between the connection sleeve 501 and the shock source mounting plate 1 can be further improved to enhance the practical effect of the present invention.

[0048] The fixed ring plate 5011 is fixedly connected to the shock source mounting plate 1 by an adhesive method. The outer side surface of the bottom of the connection sleeve 501 is provided with serrations, and the guide holes of the shock source mounting plate 1 and the bottom of the connection sleeve 501 are fixedly connected by corresponding foaming adhesives respectively.

[0049] After assembly, the foaming adhesive effectively fills into the outer surface of the bottom of the connection sleeve 501 provided with serrations, thereby effectively improving the structural stability of the present invention.

[0050] The sealing plate 403 is fixedly connected to the mounting plane of the mounting structure 3 by an adhesive method. The fixing plate 502 is fixedly connected to the top of the support shaft member 401 by an adhesive method.

[0051] The shock source mounting plate 1 includes a honeycomb core grid 101, and the upper and lower side surfaces and the periphery of the honeycomb core grid 101 are fixedly connected with corresponding skins 102 by an adhesive method respectively.

[0052] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A vibration and shock source connection and installation damping and shock reduction device, characterized in that: including an impact source mounting plate (1) for connecting and mounting a vibration impact source (2) onto the mounting plane of a corresponding mounting structure (3), and a fixing device for the vibration impact source (2) is disposed on the side of the impact source mounting plate (2) facing away from the mounting structure (3); a support mechanism (4) including a plurality of support shaft members (401) evenly distributed and mounted on the mounting plane of the mounting structure (3). An installation cavity communicating with the bottom end portion is respectively provided in the middle of each support shaft member (401), and a plurality of corresponding first damping particles (402) are respectively filled in the installation cavities. A sealing plate (403) for closing the installation cavity is respectively fixedly connected to the bottom of each support shaft member (401), and the bottom surface of the sealing plate (403) is respectively fixedly connected to the mounting plane of the mounting structure (3); a connection mechanism (5). A plurality of guide holes sleeved on the support shaft members (401) are provided on the impact source mounting plate (1), and the guide holes and the support shaft members (401) are respectively arranged at intervals. The connection mechanism (5) includes connection sleeves (501) sleeved on the upper portions of the support shaft members (401). The bottom of each connection sleeve (501) is respectively fixedly connected to the corresponding guide hole, and a fixing plate (502) fixedly connected to the top of the support shaft member (401) is integrally formed and connected to the top of each connection sleeve (501).

2. The shock absorption and impact reduction device for connecting and installing a vibration impact source according to claim 1, wherein: It further includes a vibration damping and strengthening mechanism (6). A corresponding vibration damping member installation groove is respectively concavely provided on the outer side wall of each support shaft member (401). The vibration damping and strengthening mechanism (6) includes a plurality of arc-shaped ceramic sheets (601) abutted in the vibration damping member installation grooves, and an arc-shaped ceramic sheet fixing coating film (602) is coated on the outer side walls of the support shaft members (401) and the arc-shaped ceramic sheets (601).

3. The vibration and shock reduction device for connecting and installing a vibration shock source according to claim 2, characterized in that: The thickness of the arc-shaped ceramic sheet (601) does not exceed 5 mm.

4. A vibration and shock reduction device for connecting and installing a vibration shock source, according to claim 3, characterized in that: The coating film (602) is heat-shrunk and covered on the outer side walls of the support shaft members (401) and the arc-shaped ceramic sheets (601) by a heat covering method.

5. The shock-absorbing and impact-reducing device for connecting and installing a vibration impact source according to claim 1, characterized in that: A corresponding accommodation groove is integrally formed on the outer side wall of the connection sleeve (501). A corresponding fixing ring plate (5011) is integrally formed and provided outward at the notch of the accommodation groove. The fixing ring plate (5011) is fixedly connected to the impact source mounting plate (1), and a plurality of corresponding second damping particles (7) are filled in the accommodation groove.

6. The shock absorption and impact reduction device for connecting and installing a vibration impact source according to claim 5, characterized in that: The fixing ring plate (5011) is fixedly connected to the impact source mounting plate (1) by an adhesive method or a bolt fixing method.

7. The shock-absorbing and impact-reducing device for connecting and installing a vibration impact source according to claim 1, characterized in that: The outer side surface of the bottom of the connection sleeve (501) is serrated, and the guide holes of the impact source mounting plate (1) and the bottom of the connection sleeve (501) are fixedly connected by corresponding foaming adhesives.

8. The shock and vibration reduction device for connecting and installing a vibration impact source according to claim 1, wherein: The sealing plate (403) is fixedly connected to the mounting plane of the mounting structure (3) by an adhesive method or a bolt fixing method.

9. The shock-absorbing and impact-reducing device for connecting and installing a vibration impact source according to claim 1, wherein: The fixing plate (502) is fixedly connected to the top of the support shaft member (401) by an adhesive method or a bolt fixing method.

10. The vibration and shock reduction device for connecting and installing a vibration shock source according to claim 1, characterized in that: The impact source mounting plate (1) includes a honeycomb core cell (101), and skins (102) are fixedly connected to the upper and lower sides and the periphery of the honeycomb core cell (101) by means of adhesive bonding respectively.

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