阅读说明：本技术 一种无传爆节点的网络分离装置 (Network separation device without booster node ) 是由 李辰 侯金瑛 张乔飞 陈岱松 陈楷 苏晗 孙璟 曲展龙 王帅 唐科 胡振兴 李 于 2021-08-31 设计创作，主要内容包括：本发明涉及一种无传爆节点的网络分离装置,包括级间段壳体、网络防护组件以及一条线性炸药索,所述的网络防护组件包括上侧横向保护罩、下侧横向保护罩、纵向保护罩；所述的级间段壳体纵向设置至少两处减薄区用于安装上述纵向保护罩,级间段壳体的上下端分别设置减薄区用于安装上侧横向保护罩和下侧横向保护罩；一条线性炸药索不间断的穿过整个网络防护组件,在上侧横向保护罩上形成两个并列的起爆接头。(The invention relates to a network separation device without booster nodes, which comprises a stage section shell, a network protection component and a linear explosive cable, wherein the network protection component comprises an upper side transverse protection cover, a lower side transverse protection cover and a longitudinal protection cover; the stage section shell is longitudinally provided with at least two thinning regions for installing the longitudinal protective cover, and the upper end and the lower end of the stage section shell are respectively provided with the thinning regions for installing an upper side transverse protective cover and a lower side transverse protective cover; a linear explosive cable continuously penetrates through the whole network protection assembly, and two parallel detonating joints are formed on the upper lateral protective cover.)

1. The utility model provides a network separator of node that explodes that does not have which characterized in that: the explosive safety protection device comprises a stage section shell, a network protection component and a linear explosive cable, wherein the network protection component comprises an upper side transverse protection cover, a lower side transverse protection cover and a longitudinal protection cover; the stage section shell is longitudinally provided with at least two thinning regions for installing the longitudinal protective cover, and the upper end and the lower end of the stage section shell are respectively provided with the thinning regions for installing an upper side transverse protective cover and a lower side transverse protective cover; a linear explosive cable continuously penetrates through the whole network protection assembly, and two parallel detonating joints are formed on the upper lateral protective cover.

2. The network separation apparatus of claim 1, wherein: the position of the detonation joint is located on the upper lateral protective cover and is not connected with the longitudinal protective cover.

3. The network separation apparatus of claim 1, wherein: intersection point protective covers are arranged at the intersection points of the upper transverse protective cover, the lower transverse protective cover and the longitudinal protective cover; according to the trend of the linear explosive cable, three types of cross point protective covers are included, wherein the cross point protective covers used for guiding the linear explosive cable in the upper side transverse protective cover to the longitudinal protective cover and guiding the linear explosive cable in the longitudinal protective cover to the upper side transverse protective cover are marked as A-type cross point protective covers, and the number of the A-type cross point protective covers is 1; the cross point protective cover used for changing the linear explosive cables in the longitudinal protective cover to the opposite direction is marked as a B-shaped cross point protective cover, the cross point protective cover used for guiding the linear explosive cables in the lower transverse protective cover to the longitudinal protective cover and redirecting the linear explosive cables in the opposite direction in the longitudinal protective cover to the lower transverse protective cover is marked as a C-shaped cross point protective cover.

4. The network separation apparatus of claim 3, wherein: the linear explosive cable moves from the position of the detonation joint to enter the longitudinal protective cover through a part of the upper transverse protective cover and the A-shaped cross point protective cover, then enters the lower transverse protective cover through the C-shaped cross point protective cover, enters the longitudinal protective cover through the adjacent C-shaped cross point protective cover, is reversed in the longitudinal protective cover through the B-shaped cross point protective cover, enters the lower transverse protective cover through the C-shaped cross point protective cover, and is analogized in sequence, finally enters the upper transverse protective cover through the A-shaped cross point protective cover, and finally converges to the detonation joint through the rest part of the upper transverse protective cover.

5. The network separation apparatus of claim 3, wherein: the A-shaped cross point shield is composed of two parts of same structures, each part of structure comprises an outer cover and an inner cover, an inner concave platform is arranged on the outer cover, an outstanding flat platform is arranged on the inner cover, the inner concave platform and the flat platform are provided with half U-shaped groove edges, and the flat platform is inserted into a U-shaped groove formed in the direction of a linear explosive cable after the inner concave platform.

6. The network separation apparatus of claim 3, wherein: the B-type intersection point shield comprises a B-type left outer cover, a B-type left inner cover, a B-type right outer cover and a B-type right inner cover; the B-shaped left outer cover and the B-shaped right outer cover are both provided with an upper side transverse U-shaped groove and an inner concave platform; all set up outstanding plat form on B type left side inner cup and the B type right side inner cup, form the U-shaped groove that is used for linear explosive cable trend behind the plat form of homonymy enclosing cover and inner cup inserts the indent platform, after the both sides installation is accomplished, form the U-shaped groove that is the shape of falling the U of the horizontal U-shaped groove of one upside and one downside.

7. The network separation apparatus of claim 3, wherein: the C-shaped cross point shield is composed of two parts of same structures, each part of structure comprises an outer cover and an inner cover, an inner concave platform is arranged on the outer cover, an outstanding flat platform is arranged on the inner cover, the inner concave platform and the flat platform are provided with half U-shaped groove edges, and the flat platform is inserted into a U-shaped groove formed in the direction of the linear explosive cable after the inner concave platform.

8. The network separation apparatus according to claim 5, 6 or 7, wherein: the U-shaped groove is used for turning the linear explosive cable in a fillet radius range R5-R8 mm.

9. The network separation apparatus according to claim 5, 6 or 7, wherein: the end surfaces of the two outer covers and the two inner covers in the same type of junction point protective covers are not parallel and level.

10. The network separation apparatus of claim 6, wherein: the minimum distance range between the central line of the U-shaped groove with the lower side in the shape of an inverted U and the central line of the transverse U-shaped groove on the upper side is 5-8 mm.

11. The network separation apparatus of claim 6, wherein: the butt joint surface of the U-shaped groove which is formed at the left side and the right side and is in the shape of an inverted U is a non-inverted U-shaped symmetrical surface.

Technical Field

The invention belongs to the technical field of spacecraft structures, and particularly relates to a booster node-free network separation device.

Background

The network separation structure is applied to various rocket interstage separation devices, and has the advantages of rapid separation, small residual mass, small collision risk to a superior structure and the like. However, in the prior art, the network cutting needs a plurality of energy-gathering cutting cable intersections and a plurality of explosion-propagating structures are arranged, so that the problems of a plurality of explosion-propagating environments, a plurality of initiating explosive devices and low reliability are caused.

Disclosure of Invention

The technical problem solved by the invention is as follows: the invention discloses a booster node-free network separation device, which aims at the requirements of high reliability, rapid separation, small residual mass, small collision risk to a superior structure and convenience in installation of a rocket interstage separation pair separation device.

The technical scheme of the invention is as follows: a network separation device without booster nodes comprises a stage section shell, a network protection component and a linear explosive cable, wherein the network protection component comprises an upper side transverse protection cover, a lower side transverse protection cover and a longitudinal protection cover; the stage section shell is longitudinally provided with at least two thinning regions for installing the longitudinal protective cover, and the upper end and the lower end of the stage section shell are respectively provided with the thinning regions for installing an upper side transverse protective cover and a lower side transverse protective cover; a linear explosive cable continuously penetrates through the whole network protection assembly, and two parallel detonating joints are formed on the upper lateral protective cover.

Preferably, the initiation joint location is located on the upper lateral protective cover at a location that does not interface with the longitudinal protective cover.

Preferably, intersection point protective covers are arranged at the intersection points of the upper transverse protective cover, the lower transverse protective cover and the longitudinal protective cover; according to the trend of the linear explosive cable, three types of cross point protective covers are included, wherein the cross point protective covers used for guiding the linear explosive cable in the upper side transverse protective cover to the longitudinal protective cover and guiding the linear explosive cable in the longitudinal protective cover to the upper side transverse protective cover are marked as A-type cross point protective covers, and the number of the A-type cross point protective covers is 1; the cross point protective cover used for changing the linear explosive cables in the longitudinal protective cover to the opposite direction is marked as a B-shaped cross point protective cover, the cross point protective cover used for guiding the linear explosive cables in the lower transverse protective cover to the longitudinal protective cover and redirecting the linear explosive cables in the opposite direction in the longitudinal protective cover to the lower transverse protective cover is marked as a C-shaped cross point protective cover.

Preferably, the linear explosive cable runs from the position of the detonation joint, enters the longitudinal protective cover through a part of the upper lateral protective cover and the A-shaped cross-point protective cover, then enters the lower lateral protective cover through the C-shaped cross-point protective cover, enters the longitudinal protective cover through the adjacent C-shaped cross-point protective cover, is reversed in the longitudinal protective cover through the B-shaped cross-point protective cover, enters the lower lateral protective cover through the C-shaped cross-point protective cover, and is analogized in sequence, finally enters the upper lateral protective cover through the A-shaped cross-point protective cover, and finally converges to the detonation joint through the rest part of the upper lateral protective cover.

Preferably, the A-shaped cross point shield comprises two parts of same structures, each part of structure comprises an outer cover and an inner cover, an inner concave platform is arranged on the outer cover, a protruded flat platform is arranged on the inner cover, a half U-shaped groove edge is arranged on the inner concave platform and the flat platform, and the flat platform is inserted into a U-shaped groove formed in the back of the inner concave platform and used for the trend of the linear explosive cable.

Preferably, the type B cross point shield comprises a type B left outer cover, a type B left inner cover, a type B right outer cover and a type B right inner cover; the B-shaped left outer cover and the B-shaped right outer cover are both provided with an upper side transverse U-shaped groove and an inner concave platform; all set up outstanding plat form on B type left side inner cup and the B type right side inner cup, form the U-shaped groove that is used for linear explosive cable trend behind the plat form of homonymy enclosing cover and inner cup inserts the indent platform, after the both sides installation is accomplished, form the U-shaped groove that is the shape of falling the U of the horizontal U-shaped groove of one upside and one downside.

Preferably, the C-shaped cross point shield comprises two parts of the same structure, each part of the structure comprises an outer cover and an inner cover, an inner concave platform is arranged on the outer cover, a protruded flat platform is arranged on the inner cover, a half U-shaped groove edge is arranged on the inner concave platform and the flat platform, and the flat platform is inserted into a U-shaped groove formed in the back of the inner concave platform and used for the trend of the linear explosive cable.

Preferably, the U-shaped groove has a fillet radius range R5-R8mm for the diversion of the linear explosive cord.

Preferably, the end surfaces of the two outer covers and the two inner covers in the same type of intersection point protective covers are not flush.

Preferably, the minimum distance between the central line of the U-shaped groove with the lower side in the shape of an inverted U and the central line of the transverse U-shaped groove on the upper side is 5-8 mm.

Preferably, the abutting surface of the lower U-shaped groove formed on the left and right sides and having the inverted U-shape is a non-inverted U-shaped symmetrical surface.

Compared with the prior art, the invention has the beneficial effects that: the invention provides a network separation device without booster nodes. The separation device has the advantages that a single explosive cable completes the separation function, the structure is not in a booster structure, the separation device is suitable for various linear explosive cables such as a flexible detonating cable and an energy-gathering cutting cable, the separation structure is simple, and the overall reliability of the interstage separation device is improved.

(1) The use of larger engine nozzles is an important development in order to increase the carrying capacity of aerospace vehicles. The network cutting and separating structure formed by the invention completely cuts and transversely throws out the stage section shell connected between the two stages, and can adapt to the requirements of thermal control separation after the large-caliber spray pipe and the engine are started to the maximum extent. The defects that in an original interstage separation structure, the spray pipe is axially pulled out from a separated superior shell to be separated, so that the separation gap is small, the collision risk is high, the separation speed is low, and direct thermal control separation cannot be realized are overcome. The network cutting and separating structure formed by the invention can reduce the residual mass of the stage section left on the upper stage cabin section which continues flying to the maximum extent, and improve the flying capacity and carrying capacity of the carrier.

(2) The carrier cabin shell is cut into a network according to a common structure, and a large number of cross-point detonation points and a large number of segmented explosive cables are required to be arranged. A large number of segmented explosive cables and explosion transfer nodes generate a large number of explosion transfer links among initiating explosive devices, and have great negative effects on the overall reliability and environmental adaptability of the separation device. The network cutting separation structure without the booster link formed by the invention forms a network cutting layout by a single explosive cable in a specially designed single explosive cable detouring mode to complete a network cutting function. The three specially designed node types are matched with the specially designed separation shell corresponding structures through the optimized designed linear explosive cable distance, so that explosive cables in the cross joint shield assembly have good cutting and separating capacity on a cross joint separating area on the shell in the stage section while the explosive cables cannot influence each other, and finally, the cutting, separating and booster process of the node position is reliably completed. The network cutting and separating structure without the booster link formed by the invention reduces the number of initiating explosive devices to the maximum, optimizes the structural complexity and improves the overall reliability and environmental adaptability of the device.

(3) The invention is suitable for various linear explosive cables such as flexible detonating cables, energy-gathering cutting cables and the like, and has good adaptability. The cutting and separating working conditions of various shell segment structures, shapes and material properties can be met. The method is suitable for the design requirement of network cutting of the structural shell by various carriers. Through a large number of arrangement modes and protection cover structures of simulation and test verification, the integral separation reliability, no inward redundancy and convenient installation of the device are ensured.

(4) The network cutting and separating structure without booster links is formed by arranging two ends of a single explosive cable in a close position in parallel and arranging initiators at the two ends simultaneously. In the two detonators, any one of the detonators or the detonators at the same time can complete all cutting and separating functions, namely a redundant detonation structure is formed, and the overall reliability of the device is further improved. The specially designed axial distance between the two explosive cables in the detonation end is convenient to install and small in occupied space while ensuring reliable separation of the detonation positions.

Drawings

FIG. 1 is a diagram of a network separation device without booster nodes;

FIG. 2 is a diagram of a network protection component architecture;

FIG. 3 is a cross-point shield assembly configuration of type A;

FIG. 4 is a block diagram of a type B splice point shield assembly;

FIG. 5 is a schematic view of a C-shaped cross-point shield assembly;

fig. 6 is a schematic diagram of the deployment of the network separation guard assembly.

Detailed Description

The invention is further explained below with reference to the drawings and examples.

In the embodiment, the network separation device without the booster node is designed into a 4-piece network cutting mode. There are 1 type a splice point shield assembly, 3 type B splice point shield assemblies and 4 type C splice point shield assemblies. And at the initiation joint, initiators are arranged at two ends of the explosive cable to form a redundant initiation structure. The shell 1 in the stage section is made of aluminum alloy material, the detonating joint 10 is made of alloy steel material, and the protective cover is made of aluminum alloy material.

The stage section shell 1 is a cylindrical solid shell such as a cylinder, a cone and the like and is made of metal or nonmetal. Upper transverse separation grooves 1.1, 2 or more longitudinal separation grooves 1.2 and lower transverse separation grooves 1.3 are provided. The transverse separating grooves and the longitudinal separating grooves form T-shaped intersections. And two ends of the shell in the lower stage section are provided with a connecting structure 1.4 for connecting the upper stage shell section and a connecting structure 1.5 for connecting the lower stage shell section. The inner side of the shell is provided with an upper side transverse positioning surface 1.6, a lower side transverse positioning surface 1.7 and a longitudinal positioning surface 1.8 for installing the network separation protection component. The locating surface structure may be fused with the inner rib structure.

The network protection component 2 is in the form of a horizontal and vertical connection grid containing frame body which is suitable for the separation surface and is made of metal or nonmetal. And the fixing piece is connected and fixed with the corresponding position of the stage section shell 1 through a fastening piece 3. The detonation joint protection device comprises an upper lateral protection cover component 4, a longitudinal protection cover component 5, a lower lateral protection cover component 6, an A-type cross-point protection cover component 7, a B-type cross-point protection cover component 8, a C-type cross-point protection cover component 9 and a detonation joint 10.

The upper side transverse protection cover component 4 and the lower side transverse protection cover component 6 are both of segmented arc-shaped strip structures, and a U-shaped groove for installing and positioning the linear explosive cable 11 is arranged on the side face attached to the stage section shell. The upper side of the upper lateral protective cover assembly 4 is provided with through holes for fastening connection. Through holes for connecting fasteners are arranged at the lower side of the lower transverse protective cover component 6. Wherein the initiation connection 10 is arranged in the middle of the upper lateral protective cover assembly 4, with short lateral protective covers 4.1 and 4.2 on both sides.

The longitudinal protection cover assembly 5 consists of a left side cover 5.1 and a right side cover 5.2, and each side cover is a single or a plurality of strip-shaped structures. And a U-shaped groove for installing and positioning the linear explosive cable 11 is formed in the side face, attached to the stage section shell, of each side cover. After the installation, the side surfaces of the left side cover 5.1 and the right side cover 5.2 are tightly attached together.

The type a crosspoint shield assembly 7 is composed of a type a left outer cover 12, a type a left inner cover 13, a type a right outer cover 14 and a type a right inner cover 15. After the installation is finished, two U-shaped grooves similar to a splayed shape for installing the explosive cable are formed. Wherein, set up concave station 12.1 on the left outer lid 12 of A type for hold the flat platform 13.2 of the left inner lid 13 of A type during the installation. The through holes 12.2 and 13.3 are used for fastener installation. The half U-shaped groove edges 12.5 and 13.4 form a complete U-shaped groove after the installation is completed. The fillets 12.3 and 13.1 cooperate and the fillet radius is adapted to the bending radius of the explosive cord 11. The type a right outer cap 14 is substantially symmetrical to the type a left outer cap 12, and the type a right inner cap 15 is substantially symmetrical to the type a left inner cap 13.

The type B crosspoint shield assembly 8 is composed of a type B left outer cover 16, a type B left inner cover 17, a type B right outer cover 18, and a type B right inner cover 19. After the installation is finished, a transverse U-shaped groove at the upper side and an inverted U-shaped groove at the lower side are formed. Wherein the transverse U-shaped grooves 16.1 and 18.1 are connected after installation. The left outer B-cap 16 is provided with an internal recess 16.4 for receiving the tongue-shaped platform 17.4 of the left inner B-cap 17 during installation. The type B right outer cover 18 is provided with an inner concave platform 18.5 for accommodating a tongue-and-groove-shaped flat platform 19.8 of the type B right inner cover 19 during installation. After the installation is finished, the half U-shaped groove edges 16.3 and 17.3 form a complete U-shaped groove, and the complete U-shaped groove and the half U-shaped groove edges 18.3 and 19.3 form a complete U-shaped groove to form an inverted U-shaped groove. The inclined planes formed by the butt joint of the inclined planes 16.2 and 17.2 and the inclined planes formed by the butt joint of the inclined planes 18.2 and 19.2 are jointed together. The side edges 17.7 and 19.7 are attached together. The through-holes 16.5, 17.6, 18.4, 19.4 are used for the fastener connection.

The C-junction shield assembly 9 is comprised of a C-shaped left outer cover 20, a C-shaped left inner cover 21, a C-shaped right outer cover 22, and a C-shaped right inner cover 23. After the installation is finished, two U-shaped grooves similar to a splayed shape for installing the explosive cable are formed.

The working principle is as follows: after installation, the network separation device without booster nodes forms a winding form of explosive cables 11 which are connected transversely and longitudinally as shown in fig. 6. The inside of each cross joint shield component is a cross joint of a transverse separating surface and a longitudinal separating surface. After the initiation joint 10 is initiated, the whole explosive cable is violently combusted, the separation area on the stage section shell 1 is cut off by gas pressure or cutting jet flow, a plurality of split pieces are formed and fly out, and the network cutting separation is completed. Wherein, through the optimized design distance H1(5-8mm), the explosive cable in the B-type cross joint shield assembly has the cutting and separating capacity to the cross joint separating area on the stage section shell 1 while the explosive cable does not influence each other. By optimizing the design distance H2(16-20mm), the explosive cables in A, C type cross point shield assembly have cutting and separating capacity for the cross point separating area on the stage section shell 1 while not affecting each other.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.

The invention has not been described in detail in part in the common general knowledge of a person skilled in the art.