A self-unlocking thrust scattering device applicable to simultaneous scattering of multiple payloads

Abstract

A self-unlocking thrust scattering device applicable to the simultaneous scattering of multiple loads, comprising: a support and guide frame body, a fixed unlocking device, and a thrust scattering device; the fixed unlocking device and the thrust scattering device are both fixed to the support and guide frame body; the support and guide frame body is a shelf structure composed of multiple longitudinal partitions and transverse beams; the fixed unlocking device is a four-group coaxial rod system structure in which multiple pin groups are connected to the same unlocking power source, and is used for fixing or unlocking the objects to be scattered; the thrust scattering device is an X-link group structure driven by high-pressure gas, and is used for scattering the objects to be scattered on the fixed unlocking device. The invention has wide adaptability, can be applicable to multiple loads with large differences in weight and external dimensions, and is applicable to loads with light and soft outer shells.

Description

Technical Field

[0001] The present invention relates to a self-unlocking thrust scattering device applicable to simultaneous scattering of multiple payloads, and belongs to the technical field of spacecraft structures. Background Art

[0002] In order to cope with the use requirements of fixing and transporting multiple payloads with different functions by aerospace aircraft and releasing them at high altitude near the target, when each payload descends to medium and low altitude, radial scattering and release are carried out simultaneously under low overload conditions.

[0003] The existing technical solution is to use passive fracture straps to tie the payloads together as a whole, and use single or multiple airbags to exert a pushing effect on the payloads. When the airbags are filled with high-pressure gas, the payloads are pushed outward to break the straps, and then the pushing effect continues to complete the scattering. The existing technical solution has problems such as high overload during the scattering process, poor adaptability to payloads with large mass differences, divergence of the attitude of the payloads after scattering, high requirements for the strength of the payload shell, and easy damage to the payloads; it is only applicable to multiple identical, short and thick, and solid payloads. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and solve the problem of scattering multiple payloads that are slender, have a soft shell, have large differences in weight and shape dimensions, require a gentle scattering process, and have relatively high requirements for the scattering speed.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A self-unlocking thrust scattering device applicable to simultaneous scattering of multiple payloads, comprising:

[0007] A support and guiding frame body, a fixed unlocking device, and a thrust scattering device;

[0008] Both the fixed unlocking device and the thrust scattering device are fixed to the support and guiding frame body;

[0009] The support and guiding frame body is a shelf structure composed of multiple longitudinal partitions and transverse beams;

[0010] The fixed unlocking device is a four-group coaxial rod system structure in which multiple pins are connected to the same unlocking power source, and is used to fix or unlock the objects to be scattered;

[0011] The thrust scattering device is an X-link group structure driven by high-pressure gas, and is used to scatter the objects to be scattered on the fixed unlocking device.

[0012] Preferably, the support and guiding frame body includes a tail plate, an unlocking partition, a thrust rear partition, a thrust front partition, an instrument partition, a front plate, an orbital connecting beam, an auxiliary support beam, a support beam clamping plate, a support beam connecting pin, a payload axial fixing pin, and a payload support rubber pad group;

[0013] After the clamping openings of the front plate, all partition plates, and the tail plate are respectively and sequentially fitted with the vertical plates of the track connecting beam, they are connected together with bolt pairs. The order of all partition plates is determined according to requirements. The auxiliary support beam is placed between two adjacent partition plates and fixedly connected to the corresponding partition plate. The upper parts of the two support beam clamping plates are clamped on the track connecting beam, and the lower parts are supported and fixed on the back of the auxiliary support beam. The fixed unlocking device is installed on the unlocking partition plate. The thrust scattering device is installed between the thrust rear partition plate and the thrust front partition plate. The fixed pin is installed on the thrust rear partition plate, and the pin body is inserted into the pin hole of the load to axially fix the load. The sizes of the rubber pads in the load support rubber pad group match the shape of the load to radially support the load.

[0014] Preferably, the tail plate is in the shape of a middle annular high rib with clamping plates around it, and an external fixed interface is provided on one of the end faces to place and connect external devices.

[0015] Preferably, the unlocking partition plate is in the shape of a cross-shaped clamping plate, which is used to connect multiple track connecting beams and install and fix the power components of the fixed unlocking device. The clamping opening of the unlocking partition plate is used to clamp the vertical plate of the guide rail connecting beam. The central guiding hole of the unlocking partition plate is used for the connecting guide rod of the three-rod pin of the fixed unlocking device to pass through. The hoop pin holes of the unlocking partition plate are used for the passing and support of the hoop pins on both sides of the three-rod pin, and to connect and fix the hoop of the fixed unlocking device to the corresponding partition plate. The support pin holes of the unlocking partition plate are used to pass through the pin column surface of the support beam connecting pin of the support guiding frame body and provide support. The central through hole of the unlocking partition plate is used to accommodate the cross connecting plate of the fixed unlocking device and provide a guiding function for the cross connecting plate that moves axially during unlocking. The flange threaded holes of the unlocking partition plate are used to fix the push impactor installation flange of the fixed unlocking device. The trapezoidal groove of the unlocking partition plate is used to accommodate the hole head of the hoop of the fixed unlocking device. The concave hole of the unlocking partition plate is used to accommodate a part of the connecting guide rod.

[0016] Preferably, the flange threaded holes of the unlocking partition plate are arranged on the outer end face of the central through hole and are evenly distributed circumferentially to fix the push impactor installation flange of the fixed unlocking device.

[0017] Preferably, an inclined surface is provided on the upper part of the trapezoidal groove of the unlocking partition plate to guide the displacement of the hole head of the load hoop pin after unlocking.

[0018] Preferably, the arc ribs of the unlocking partition plate are used to increase the bending resistance stiffness and load-bearing capacity of the unlocking partition plate, and at the same time are used to provide radial support for each load at the designed position.

[0019] Preferably, the track connecting beam is a strip with a T-shaped cross-section; the top of the T-shaped surface is a guide rail for guiding the sliding out of the overall load from the aircraft cabin during throwing; the front part of the track connecting beam is an inclined trapezoid for fixing inside the aircraft cabin; a pin hole is provided at the lower part of the inclined trapezoid for connecting the pin seat pressing shaft of the front plate and pressing the end face against the front end face of the step of the front plate; the vertical plate at the rear part of the track connecting beam is thickened to form a thrust block for positioning between the tail plate and the unlocking partition and transmitting the axial pressure; the end face is pressed against the front end face of the clamping plate of the tail plate.

[0020] Preferably, an inclined surface is provided at the tail of the guide rail to facilitate the insertion into the guide wheel.

[0021] Preferably, the fixed unlocking device includes a cross connecting plate, a push punch, a push punch mounting flange, a load I strap, a load II strap, a load III strap, a load IV strap, a three-rod pin, an adjusting connector, a No. 1 connecting rod, a No. 2 connecting rod, a No. 3 connecting rod, a No. 4 connecting rod, and an intermediate long rod pin;

[0022] The push punch is fixed to the push punch mounting flange, and the push punch mounting flange is fixed to the unlocking partition; the cross connecting plate is connected to the push punch; the three-rod pins are respectively inserted into the central guide holes and the strap pin holes of each partition; the front part of the three-rod pin located on the unlocking partition of the support guide frame passes through the cross connecting plate and is fixed, and the rear part is connected to the No. 1 connecting rod through the adjusting connector; the No. 1 connecting rod is connected to the three-rod pin installed on the thrust rear partition of the support guide frame through the adjusting connector; in this way, through the No. 2 connecting rod, the No. 3 connecting rod, the No. 4 connecting rod, and the connector, it is connected to the three-rod pin or the intermediate long rod pin installed on the front plate; the three-rod pins or the intermediate long rod pins on the same side clamping plates of each partition are connected together;

[0023] The load I strap, the load II strap, the load III strap, and the load IV strap are used to fix the thrown objects;

[0024] When each load needs to be unlocked, the push punch is controlled to work, pushing the cross connecting plate backward along the axis and pulling out the strap pins of each three-rod pin connected to it from the strap pin holes of the corresponding partitions; completing the release of each load strap, and then unlocking the fixing effect on the load.

[0025] Preferably, the three-rod pin has a three-tooth structure with a long middle and short sides; it includes a connecting guide rod, a strap pin, a force transmission plate, and a pressing plate; the connecting guide rod is used to transmit the axial force; the strap pin provides support for the corresponding load strap when passing through the corresponding strap and the corresponding partition;

[0026] During operation, the support platform on the connecting guide rod pulls out the strap pin together with the load straps and the strap pin holes of the corresponding partitions.

[0027] Preferably, the short strap structures of each load strap are the same, and the lengths of the long straps are different to match the shapes of the corresponding loads; the load strap is an elastic strap structure.

[0028] Preferably, the thrust scattering device includes a fixed hinge seat, a central sliding rod, an actuating cylinder, an intermediate connecting rod, a front connecting rod, a slide rail pair, a slider hinge seat, a rear fixing nut, a gas seat, a gas generator, a support disc, a support ring, a load support plate, a front fixing nut and a shaft pin; the fixed hinge seat is sleeved on the front part of the central sliding rod, the actuating cylinder is sleeved on the rear part of the central sliding rod, the rear part of the intermediate connecting rod is connected to the front hinge seat of the actuating cylinder, and 2 front connecting rods are arranged in each direction, and the front ends are all connected to the double hinge seats of the fixed hinge seat; the intermediate connecting rod and the front connecting rod are connected by a shaft pin in the middle to form a rotating pair and constitute an X-shaped bracket; a plurality of gas generators are connected to the gas seat and are connected to the internal thread on the rear part of the central sliding rod by the external thread at the front end of the gas seat; the support disc and the support ring are a combined support structure, the support holes on the support disc are sleeved on the outer peripheral surface of the gas generator, and then are connected by a bolt pair through the waist-shaped holes and the circumferentially uniformly distributed through holes on the support ring; 4 support forks are arranged on the outside of the support ring, and screws pass through the through holes thereon and are screwed into the threaded holes punched on the corresponding position auxiliary support beams of the support guide frame body to form the support for the gas generator.

[0029] Preferably, when the thrust scattering device starts to act, the high-pressure gas generated by each gas generator is collected by the gas seat and then introduced into the gas channel of the central sliding rod and into the front end face inside the actuating cylinder to exert a pushing effect on the actuating cylinder and make it move axially; the connecting rod group is pushed to rotate, converting the axial thrust of the actuating cylinder into a radial thrust on the load support plate and pushing each load to move outward radially;

[0030] When the thrust scattering device finishes acting, when the actuating cylinder reaches the designed stroke L, the gas is depressurized through the exhaust waist-shaped holes, the radial thrust action on each load disappears, and each load and the support plate are separated.

[0031] The present invention has the following beneficial effects compared with the prior art:

[0032] (1) The present invention has wide adaptability: it can be applicable to a variety of loads with large differences in weight and external dimensions, and is applicable to loads with light and soft outer shells.

[0033] (2) The loads of the present invention are firmly fixed: the loads are pressed on the partition by the hoop band to form reliable radial fixation; the axial fixing pins fixed on the partition achieve reliable axial fixation of the loads.

[0034] (3) The present invention has the functions of support and guidance: the tracks on the track connecting beams of the device frame body have the functions of overall support in the aircraft cabin and overall guidance for throwing.

[0035] (4) The present invention unlocks autonomously and quickly: through the fixed unlocking device, the hoop band of the load is unlocked quickly in a controlled manner, without mis-unlocking, with strong adaptability to the flight environment and no influence on the attitude of the load scattering process.

[0036] (5) The spreading process of the present invention is stable with little impact: Through the matching of the gas production rate of the gas generator and the structure of the thrust spreading device, the spreading process of the load is accelerated rapidly and smoothly, with a small acceleration.

[0037] (6) The present invention has no additional angular velocity on the load: By using mechanism control and the supporting effect of the pallet, there is no additional angle of attack and yaw angle on the load, and the load is pushed away radially in a parallel attitude. Description of the Drawings

[0038] Figure 1 It is the structural schematic diagram of the self-unlocking thrust spreading device.

[0039] Figure 2 It is the front view external shape diagram of the self-unlocking thrust spreading device.

[0040] Figure 3 It is the rear axonometric external shape diagram of the support and guide frame structure.

[0041] Figure 4 It is the front axonometric external shape diagram of the support and guide frame structure.

[0042] Figure 5 It is the external shape diagram of the unlocking partition.

[0043] Figure 6 It is the external shape diagram of the front plate.

[0044] Figure 7 It is the external shape diagram of the track connecting beam.

[0045] Figure 8 It is the external shape diagram of the pin seat and pressing shaft.

[0046] Figure 9 It is the structural schematic diagram of the fixed unlocking device.

[0047] Figure 10 It is the external shape diagram of the three-bar pin.

[0048] Figure 11 It is the external shape diagram of the adjusting connector.

[0049] Figure 12 It is the external shape diagram of the load I hoop.

[0050] Figure 13 It is the structural schematic diagram of the thrust spreading device (hiding 2 load pallets).

[0051] Figure 14 It is the external shape diagram of the fixed hinge seat.

[0052] Figure 15 It is the external shape diagram of the central sliding rod.

[0053] Figure 16 It is the external shape diagram of the actuator cylinder.

[0054] Figure 17 It is a diagram of the outer shape of the gas recoil sleeve and the state of the gas recoil sleeve installed outside the actuating cylinder.

[0055] Figure 18 It is a schematic diagram of the starting action state of the thrust scattering device.

[0056] Figure 19 It is a schematic diagram of the ending action state of the thrust scattering device. Specific implementation manners

[0057] To make the objectives, technical solutions and advantages of the present invention clearer, the following will further describe in detail the implementation manners of the present invention with reference to the accompanying drawings.

[0058] This article presents a design solution for a self-unlocking thrust scattering device applicable to the simultaneous scattering of multiple loads. This device has the advantages of firmly fixing the loads, having a support and guiding function, unlocking autonomously and quickly, having a smooth scattering process with little impact, having no additional angular velocity on the loads, and being applicable to the requirements of multiple loads with large differences in weight and external dimensions.

[0059] The self-unlocking thrust scattering device is composed of three functional components: a support and guiding frame 1, a fixed unlocking device 2, and a thrust scattering device 3. The fixed unlocking device 2 and the thrust scattering device 3 are both fixed to the support and guiding frame 1, as Figure 1 and Figure 2 shown. The adaptable loads are Load I with a radius R1, Load II with a radius R2, Load III with a radius R3, and Load IV with a radius R4. The outer perimeters of the four loads are circumscribed with the circle having a central diameter D. The lengths of the four loads can be different, and the radii can also be different.

[0060] The support and guiding frame 1 is a shelf structure composed of multiple longitudinal partitions and transverse beams, as Figure 3 and Figure 4As shown in the figure. It mainly consists of a tail plate 4, an unlocking partition plate 5, a thrust rear partition plate 6, a thrust front partition plate 7, an instrument partition plate 8, a front plate 9, a track connecting beam 10, an auxiliary support beam 11, a support beam clamping plate 12, a support beam connecting pin 13, a load axial fixing pin 14, a load support rubber pad group 15 and corresponding bolt connection pairs. After the clamping openings of the front and rear tail plates and each partition plate are respectively matched with the vertical plate 10.6 of the track connecting beam 10, they are connected together with bolt pairs. Each section of the auxiliary support beam 11 is placed between two adjacent partition plates and is fixedly connected to the connecting pin holes of the corresponding partition plates through the support beam connecting pin 13 with double-headed threads. The upper parts of the two support beam clamping plates are clamped on both sides of the vertical plate 10.6 and are connected through bolt pairs, and the lower parts are supported on the back of the corresponding auxiliary support beam 11 and are fixed with screws. The main part of the fixed unlocking device 2 is installed on the unlocking partition plate 5. The thrust throwing device 3 is installed between the thrust rear partition plate 6 and the thrust front partition plate 7 and is supported on the central through holes of the two partition plates. The fixing pin 14 is installed on the thrust rear partition plate 6, and its pin body is inserted into the pin hole of the load to axially fix the load. The sizes of the rubber pads in the load support rubber pad group 15 match the shape of the load to radially support the load.

[0061] The tail plate 4 is in the shape of a middle annular high rib with clamping plates around it, and external fixed interface threaded holes 4.1 are provided on the rear end face. The center is a through hole 4.2 for placing external devices such as a deceleration parachute.

[0062] The unlocking partition plate 5 is in the shape of a large rounded corner high rib cross-shaped clamping plate with a thickness of a1, and is used to connect 4 track connecting beams 10 and install and fix the power components of the fixed unlocking device 2, such as Figure 5As shown. The clamping port 5.1 is used to clamp the vertical plate 10.6 of the guide rail connecting beam 10. The width of the clamping port 5.1 is a3, forming a small clearance fit with the thickness of the vertical plate 10.6. The depth a4 of the clamping port 5.1 is slightly greater than the height of the vertical plate 10.6. The central guiding hole 5.2 is used for the passage of the connecting guiding rod 30 in the middle of the three-bar pin 23. The hoop strap pin hole 5.3 is used for the passage and support of the hoop strap pins 31 on both sides of the three-bar pin 23, and connects and fixes the corresponding hoop strap 21 to the partition board. The support pin hole 5.4 is used to pass through the pin column surface of the support beam connecting pin 13 and provide support. The central through hole 5.5 is used to accommodate the cross connecting plate 16 of the fixed unlocking device 2 and provide guiding for the cross connecting plate 16 moving axially during unlocking. The flange threaded holes 5.6 are arranged on the outer end face of the central through hole 5.5 and are evenly distributed circumferentially, for fixing the pusher mounting flange 18. The trapezoidal grooves 5.7 are arranged at the positions of both side walls of each clamping plate, with a width of a2, for accommodating the long strap pin hole head 34.1 or the short strap pin hole head 35.1 of the hoop strap 21. The upper part of the trapezoidal groove 5.7 is provided with an inclined surface 5.8 for guiding the displacement of the load hoop strap pin hole head moving out after unlocking. The arc ribs 5.9 are used to increase the bending resistance stiffness and load-bearing capacity of the unlocking partition board, and at the same time provide radial support for each load at the designed position. The concave hole 5.10 is used to accommodate the support platform 30.3 of the connecting guiding rod 30. The bottom plate 5.11 is used to increase the overall connection ability of the partition board.

[0063] The rear thrust partition board 6, the front thrust partition board 7, the instrument partition board 8, and the front board 9 have structures similar to those of the unlocking partition board 5, and are used to connect 4 track connecting beams 10 and provide support for the corresponding functional components.

[0064] The structure of the front board 9 is in the shape of a large-round-corner high-rib cross-shaped clamping plate, as Figure 6 shown. A step 9.1 is arranged on the front end face at the clamping plate position. Threaded holes 9.2 are arranged on the step 9.1 to connect and fix the pin seat pressing shaft 60. The circumferentially evenly distributed threaded holes 9.3 are installation process holes for overall installation into the aircraft. The central through hole 9.4 is used for installing instruments.

[0065] The main body of the track connecting beam 10 is a long strip with a T-shaped cross-section, as Figure 7 shown. The top of the T-shaped surface is the guide rail 10.1, which is used for guiding the sliding out of the associated load as a whole from the aircraft cabin during throwing. An inclined surface 10.2 is arranged at the tail of the guide rail 10.1 to facilitate entry into the guide wheel. The front part of the track connecting beam 10 is an inclined surface trapezoid 10.3 for fixing in the aircraft cabin. A pin hole 10.4 is arranged at the lower part of the inclined surface trapezoid 10.3, which is used to connect the pin seat pressing shaft 60 and press the end face 10.4 against the front end face of the step 9.1. The rear vertical plate of the track connecting beam 10 is thickened to form a thrust block 10.7, which is used for positioning between the tail plate 4 and the unlocking partition board 5 and transmitting the axial pressure. The end face 10.8 is pressed against the front end face of the clamping plate of the tail plate 4.

[0066] The pin seat pressing shaft 60 has a stepped shaft structure, as Figure 8 shown. A through pin hole 60.1 is provided along the central axis for passing through and supporting the intermediate long rod pin 29. A V-shaped groove 60.3 is provided on the outer stepped column 60.2 for accommodating the long belt pin hole head 34.1 or the short belt pin hole head 35.1 of the hoop band 21. The stepped column 60.4 in the middle is a pin column, which is located in the pin hole 10.4 of the track connecting beam 10 after installation. The threaded column section 60.5 at the rear is in threaded pair with the threaded hole 9.2 of the front plate 9 to form a reliable connection.

[0067] The fixed unlocking device 2 is a four-coaxial rod system structure in which multiple pin groups are connected to the same unlocking power source, as Figure 9 shown. It mainly consists of a cross connecting plate 16, a pusher 17, a pusher mounting flange 18, a load I hoop band 19, a load II hoop band 20, a load III hoop band 21, a load IV hoop band 22, a three-rod pin 23, an adjusting connector 24, a 1# connecting rod 25, a 2# connecting rod 26, a 3# connecting rod 27, a 4# connecting rod 28, and an intermediate long rod pin 29. The pusher 17 is fixed to the internal thread of the pusher mounting flange 18 through the external thread in the middle, and then the pusher mounting flange 18 is fixed to the threaded hole 5.6 of the unlocking partition 5 using bolts. The cross connecting plate 16 is connected to the front external thread of the pusher 17 through its internal thread. The three-rod pins 23 are respectively inserted into the central guiding holes and the hoop band pin holes of each partition. After the front thread 30.2 of the three-rod pin 23 located on the unlocking partition 5 passes through the through hole of the cross head of the cross connecting plate 16, it is fixed by tightening with a nut. The rear thread 30.1 is connected to the 1# connecting rod 25 through the adjusting connector 24. The 1# connecting rod 25 is connected to the front thread 30.2 of the three-rod pin 23 installed on the thrust rear partition 6 through the adjusting connector 24. Connect in this way to the three-rod pin 23 or the intermediate long rod pin 29 installed on the front plate 9. Connect the three-rod pins 23 or the intermediate long rod pins 29 on the same side splint of each partition together. When each load needs to be unlocked, the pusher 17 is controlled to work, pushing the cross connecting plate 16 axially backward, and pulling out the hoop band pins 31 of each three-rod pin 23 connected thereto from the hoop band pin holes of the corresponding partitions. The release of each load hoop band is completed, and thus the fixing effect on the load is released.

[0068] The three-rod pin 23 has a three-tooth structure with a long middle and short sides on both sides, as Figure 10 shown. It consists of a connecting guide rod 30, a hoop band pin 31, a force transmission plate 32, a pressing plate 33, and a nut. The connecting guide rod 30 is used to transmit the axial force. The hoop band pin 31 provides support for the corresponding load hoop band after passing through the copper pin sleeve 39 of the hoop band and the hoop band pin hole of the partition. During operation, the support platform 30.3 on the connecting guide rod 30 pulls out the hoop band pin 31 together with the force transmission plate 32 and the pin head 31.1 from the copper pin sleeve 39 and the hoop band pin hole of the partition. The pressing plate 33 is used to fix the three-rod pin 23 into a whole.

[0069] The load I strap 19 is an elastic strap structure, as Figure 12 shown. It consists of a long strap 34, a short strap 35, a threaded post 36, a hole post 37, a bolt 38, and a copper bushing 39. The short strap structures of each load strap are the same, and the lengths of the long straps are different to match the shapes of the corresponding loads. The long strap 34 has a sleeve structure at the wide end to accommodate the hole post 37. The short strap 35 has a sleeve structure at the wide end to accommodate the threaded post 36. After the bolt 38 passes through the through hole of the hole post 37, it is screwed into the threaded hole on the threaded post 36 to connect the long strap 34 and the short strap 35 together. The copper bushing 39 is used for friction reduction to avoid jamming when the strap pin 31 is pulled out.

[0070] The adjustment connector 24 is a three-section connection structure, as Figure 11 shown. It consists of a length adjustment section 61, a hinge middle section 62, a hinge pin 63, and a hinge rear section 64. The length adjustment section 61 is provided with a front internal thread 61.1 and a rear external thread 61.2, and the two threads have opposite helix directions. The front part of the hinge middle section 62 is a binary structure with pin holes, and it is connected to the hinge rear section 64 through the hinge pin 63 to form a hinge pair. The rear external thread 61.2 of the length adjustment section 61 is screwed into the threaded hole 62.1 on the rear end face of the hinge middle section 62. After the three-bar pin 23 and the corresponding connecting rod are connected, the length is adjusted by rotating the length adjustment section 61, and the hinge pair is used to adapt to the different coaxialities between the three-bar pins 23.

[0071] The main body of the thrust scattering device 3 is an X-linkage group structure driven by high-pressure gas, as Figure 13 shown. It mainly consists of a fixed hinge seat 41, a central sliding rod 42, an actuating cylinder 43, an intermediate connecting rod 44, a front connecting rod 45, a slide rail pair 46, a slider hinge seat 47, a rear fixing nut 48, a gas seat 49, a gas generator 52, a support disk 50, a support ring 51, a load support plate 53, a front fixing nut 54, and shaft pins and nuts. The fixed hinge seat 41 is sleeved on the front part of the central sliding rod 42, the actuating cylinder 43 is sleeved on the rear part of the central sliding rod 42, the rear part of the intermediate connecting rod 44 is connected to the front hinge seat of the actuating cylinder 43, and 2 front connecting rods 45 are arranged in each direction, and the front ends are all connected to the double hinge seats of the fixed hinge seat 41. The intermediate connecting rod 44 and the front connecting rod 45 are connected by a shaft pin in the middle to form a rotating pair, constituting an X-shaped bracket. A plurality of gas generators 52 are connected to the gas seat 49, and the front external thread of the gas seat 49 is connected to the internal thread on the rear part of the central sliding rod 42. The support disk 50 and the support ring 51 are a combined support structure. The support hole 50.2 on the support disk 50 is sleeved on the outer peripheral surface of the gas generator 52, and then connected to the circumferentially evenly distributed through holes on the support ring 51 through the kidney-shaped hole 50.1 by a bolt pair. 4 support forks 51.1 are arranged on the outside of the support ring, and the screws pass through the through holes 51.2 on them and are screwed into the threaded holes drilled on the corresponding auxiliary support beam 11 to form a support for the gas generator 52.

[0072] The fixed hinge seat 41 is a support block structure, asFigure 14 As shown. A through hole 41.1 is provided in the middle, with a diameter d2, forming a small clearance fit with the front axial surface 42.2 of the central slide rod 42. Four groups of double hinge seats are provided around, consisting of an outer hinge seat 41.2 and an intermediate hinge seat 41.3. A shaft pin passes through the pin hole 41.1 and the pin hole at the front end of the front connecting rod 45 to form a hinge pair, providing a rotational support function.

[0073] The central slide rod 42 is of a rotary body structure, as Figure 15 shown. An external thread section 42.1 is provided at the front end for connecting the front fixing nut 54. The outer diameter of the front axial surface 42.2 is d3. A sliding axial surface 42.3, with an outer diameter d4, forms a sealed sliding pair with the sealing sleeve section 43.4 of the actuating cylinder 43. Behind the sliding axial surface is a sealing ring section 42.4, with two sealing ring grooves 42.6 provided on its outer peripheral surface, and circumferentially evenly distributed inclined holes 42.5 provided on its front end surface, communicating with the gas holes 42.12 at the rear to form a gas passage. An auxiliary support sliding ring 42.7 is provided behind the sealing ring section for providing auxiliary support to the inner peripheral surface of the actuating cylinder 43 to avoid off-axis jamming during sliding. An external thread section 42.8 is provided at the rear of the central slide rod 42 for connecting the rear fixing nut 48. Inside the external thread section 42.8 is an internal thread section 42.11 for connecting the gas seat 49.

[0074] The actuating cylinder 43 is of a rotary body structure, as Figure 16 shown. A hinge seat plate 43.1 is provided at the front, with a hinge shaft through hole 43.3 provided thereon to form a circumferential hinge seat for providing rotational support to the intermediate connecting rod 44. A sealing sleeve section 43.4 is provided at the front end, with an inner diameter d5 and two sealing ring grooves 43.7 provided inside. Exhaust waist holes 43.5 are provided at the rear of the outer wall 43.2 of the actuating cylinder for exhausting and reducing pressure after the working stroke of the actuating cylinder is completed to reduce the aftereffect. A ring rib 43.6 is provided at the rear end to improve the pressure-bearing capacity of the actuating cylinder 43. The inner wall surface 43.8 of the cylinder is a smooth cylinder surface, with an inner diameter d6.

[0075] A gas reaction sleeve 60 can be added to the tail of the actuating cylinder 43. The gas reaction sleeve 60 is of a rotary body structure. The outer peripheral surface is a gas deflection ring 65.1 for deflecting the gas discharged from the exhaust waist hole 43.5 to the forward axial direction. The bottom is a flange ring 65.2, with evenly distributed through holes 65.3 provided for passing through the screws 66. The screws 66 are screwed into the ring rib 43.6 for fixing the gas reaction sleeve 60 on the actuating cylinder 43.

[0076] When the thrust scattering device 3 starts to act, as Figure 17As shown in the figure, the high-pressure gas generated by each gas generator 52 is collected by the gas seat 49 and then introduced into the gas channel of the central sliding rod 42, and then into the front end face inside the actuating cylinder 43, which exerts a pushing force on the actuating cylinder 43 to make it move axially. The pushing link group rotates, converting the axial thrust of the actuating cylinder 43 into a radial thrust on the load support plate 53, and pushing each load to move outward along the direction.

[0077] When the thrust scattering device 3 completes its action, as Figure 18 shown. When the actuating cylinder 43 reaches the designed stroke L, the gas is depressurized through the exhaust waist hole 43.5 and deflected by the gas reaction sleeve 60 to be sprayed forward, forming a decelerating effect on the actuating cylinder. The radial thrust of the thrust scattering device 3 on each load disappears, and each load and the support plate are separated, as Figure 19 shown.

[0078] A self-unlocking thrust scattering device is used to simultaneously and parallelly scatter 4 functional loads in the medium and low altitudes.

[0079] The overall support and guiding frame body is a 7050 aluminum alloy forging.

[0080] The main body of the fixed unlocking device is made of 30CrMnSiA alloy structural steel.

[0081] The central part of the thrust scattering device is made of 30CrMnSiA alloy structural steel, and the rod members are 7050 aluminum alloy forgings.

[0082] The content not described in detail in the specification of the present invention belongs to the well-known technology of those skilled in the art.

[0083] Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the technical solution of the present invention all belong to the protection scope of the technical solution of the present invention.

Claims

1. A self-unlocking thrust scattering device applicable to simultaneous scattering of multiple loads, characterized in that, Including: A support and guiding frame, a fixed unlocking device, and a thrust scattering device; Both the fixed unlocking device and the thrust scattering device are fixed to the support and guiding frame; The support and guiding frame is a shelf structure composed of multiple longitudinal partitions and transverse beams; The fixed unlocking device is a four-group coaxial rod system structure in which multiple pin groups are connected to the same unlocking power source, and is used to fix or unlock the objects to be scattered; The thrust scattering device is an X-link group structure driven by high-pressure gas, and is used to scatter the objects to be scattered on the fixed unlocking device; The support and guiding frame includes a tail plate, an unlocking partition, a rear thrust partition, a front thrust partition, an instrument partition, a front plate, a track connecting beam, an auxiliary support beam, a support beam clamping plate, a support beam connecting pin, a load axial fixing pin, and a load support rubber pad group; After the clamping mouths of the front plate, all partitions, and the tail plate are respectively matched with the vertical plates of the track connecting beam in sequence, they are connected together with bolt pairs, and the order of all partitions is determined according to requirements; the auxiliary support beam is placed between two adjacent partitions and is fixedly connected to the corresponding partition; the upper parts of two support beam clamping plates are clamped on the track connecting beam, and the lower parts are supported and fixed on the back of the auxiliary support beam; the fixed unlocking device is installed on the unlocking partition; the thrust scattering device is installed between the rear thrust partition and the front thrust partition; the fixing pin is installed on the rear thrust partition, and the pin body is inserted into the pin hole of the load to axially fix the load; the sizes of the rubber pads in the load support rubber pad group match the shape of the load to radially support the load.

2. The self-unlocking thrust spreading device according to claim 1, characterized in that, The tail plate is in the shape of a middle annular high rib with clamping plates around, and an external fixed interface is provided on one end face to place and connect external devices.

3. The self-unlocking thrust spreading device according to claim 1, wherein The unlocking partition is in the shape of a cross-shaped clamping plate, and is used to connect multiple track connecting beams and install and fix the power components of the fixed unlocking device; the clamping mouth of the unlocking partition is used to clamp the vertical plate of the guide rail connecting beam; the central guiding hole of the unlocking partition is used for the connecting guide rod of the three-rod pin of the fixed unlocking device to pass through; the hoop pin hole of the unlocking partition is used for the passing and support of the hoop pins on both sides of the three-rod pin, and to connect and fix the hoop of the fixed unlocking device to the corresponding partition; the support pin hole of the unlocking partition is used to pass through the pin column surface of the support beam connecting pin of the support and guiding frame and provide support; the central through hole of the unlocking partition is used to accommodate the cross connecting plate of the fixed unlocking device and provide a guiding effect on the cross connecting plate that moves axially during unlocking; the flange threaded hole of the unlocking partition is used to fix the push actuator mounting flange of the fixed unlocking device; the trapezoidal groove of the unlocking partition is used to accommodate the hole head of the hoop of the fixed unlocking device; the concave hole of the unlocking partition is used to accommodate a part of the connecting guide rod.

4. The self-unlocking thrust spreading device according to claim 3, wherein The flange threaded holes of the unlocking partition are arranged on the outer end face of the central through hole and are evenly distributed circumferentially, and are used to fix the push actuator mounting flange of the fixed unlocking device.

5. The self-unlocking thrust spreading device according to claim 3, wherein The upper part of the trapezoidal groove of the unlocking partition is provided with an inclined surface, which is used to guide the displacement of the hole head of the load hoop pin after unlocking.

6. The self-unlocking thrust spreading device according to claim 3, wherein, The arc ribs of the unlocking partition are used to increase the bending resistance stiffness and bearing capacity of the unlocking partition, and at the same time are used to provide radial support for each load at the designed position.

7. The self-unlocking thrust spreading device according to claim 1, characterized in that, The track connecting beam is a strip with a T-shaped cross-section; the top of the T-shaped surface is a guide rail, which is used for guiding when the whole load is thrown out and sliding out from the aircraft cabin; the front part of the track connecting beam is an inclined surface trapezoid for fixing in the aircraft cabin; a pin hole is arranged at the lower part of the inclined surface trapezoid, which is used for connecting the pin seat press shaft of the front plate and pressing the end surface against the front end surface of the step of the front plate; the rear vertical plate of the track connecting beam is thickened to form a thrust block, which is used for positioning between the tail plate and the unlocking partition and transmitting the axial pressure; the end surface is pressed against the front end surface of the tail plate clamping plate.

8. The self-unlocking thrust spreading device according to claim 7, characterized in that, An inclined surface is arranged at the tail of the guide rail to facilitate the blade to enter the guide wheel.

9. The self-unlocking thrust spreading device according to any one of claims 1 to 8, characterized in that The fixed unlocking device includes a cross connecting plate, a push punch, a push punch mounting flange, load I hoop, load II hoop, load III hoop, load IV hoop, three-rod pin, adjusting connector, No. 1 connecting rod, No. 2 connecting rod, No. 3 connecting rod, No. 4 connecting rod and an intermediate long rod pin; The push punch is fixed to the push punch mounting flange, and the push punch mounting flange is fixed to the unlocking partition; the cross connecting plate is connected to the push punch; the three-rod pins are respectively inserted into the central guide holes and hoop pin holes of each partition; The front part of the three-rod pin located on the unlocking partition of the support guide frame passes through the cross connecting plate and is fixed, and the rear part is connected to the No. 1 connecting rod through the adjusting connector; the No. 1 connecting rod is connected to the three-rod pin installed on the thrust rear partition of the support guide frame through the adjusting connector; in this way, through the No. 2 connecting rod, No. 3 connecting rod, No. 4 connecting rod and the connector, it is connected to the three-rod pin or the intermediate long rod pin installed on the front plate; the three-rod pins or the intermediate long rod pins on the same side clamping plates of each partition are connected together; Load I hoop, load II hoop, load III hoop, load IV hoop are used to fix the thrown objects; When each load needs to be unlocked, the push punch is controlled to work, pushing the cross connecting plate axially backward, and pulling out the hoop pins of each three-rod pin connected to it from the hoop pin holes of the corresponding partitions; completing the release of each load hoop, and then unlocking the fixing effect on the load.

10. The self-unlocking thrust spreading device according to claim 9, characterized in that, The three-rod pin is a three-tooth structure with a long middle and short sides; it includes a connecting guide rod, a hoop pin, a force transmission plate and a pressing plate; the connecting guide rod is used to transmit the axial force; the hoop pin provides support for the corresponding load hoop when passing through the corresponding hoop and the corresponding partition; During operation, the support platform on the connecting guide rod pulls out the hoop pin together from the load hoops and the hoop pin holes of the corresponding partitions.

11. The self-unlocking thrust spreading device according to claim 9, characterized in that, The short belt structures of each load hoop are the same, and the lengths of the long belts are different to match the shapes of the corresponding loads; the load hoop is an elastic belt structure.

12. The self-unlocking thrust spreading device according to any one of claims 1 to 8, characterized in that, The thrust scattering device includes a fixed hinge seat, a central sliding rod, an actuating cylinder, an intermediate connecting rod, a front connecting rod, a slide rail pair, a slider hinge seat, a rear fixing nut, a gas seat, a gas generator, a support disc, a support ring, a load carrier plate, a front fixing nut and a shaft pin; the fixed hinge seat is sleeved on the front part of the central sliding rod, the actuating cylinder is sleeved on the rear part of the central sliding rod, the rear part of the intermediate connecting rod is connected to the front hinge seat of the actuating cylinder, 2 front connecting rods are arranged in each direction, and the front ends are all connected to the double hinge seats of the fixed hinge seat; the middle of the intermediate connecting rod and the front connecting rod are connected by a shaft pin to form a rotating pair and constitute an X-shaped bracket; a plurality of gas generators are connected to the gas seat and are connected to the internal thread on the rear part of the central sliding rod by the external thread at the front end of the gas seat; the support disc and the support ring are a combined support structure, the support holes on the support disc are sleeved on the outer peripheral surface of the gas generator, and then are connected by a bolt pair through the waist-shaped holes and the circumferentially uniformly distributed through holes on the support ring; 4 support forks are arranged on the outside of the support ring, and screws pass through the through holes on them and are screwed into the threaded holes drilled on the corresponding position auxiliary support beams of the support guide frame body to form the support for the gas generator.

13. The self-unlocking thrust spreading device according to claim 12, wherein, When the thrust scattering device starts to act, the high-pressure gas generated by each gas generator is collected by the gas seat and then introduced into the gas channel of the central sliding rod and the front end face inside the actuating cylinder, which produces a pushing effect on the actuating cylinder and makes it move axially; the connecting rod group is pushed to rotate, and the axial thrust of the actuating cylinder is converted into the radial thrust on the load carrier plate, and each load is pushed to move radially outwards; When the thrust scattering device finishes acting, when the actuating cylinder reaches the designed stroke L, the gas is relieved through the exhaust waist-shaped holes, the radial thrust action on each load disappears, and each load and the carrier plate are separated.

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