Fusing type releasing device and method

Abstract

The invention provides a fusing type putting device and method. The fusing type putting device comprises a fusing type putting device body and a hanging point putting model. The hanging point throwing model comprises a throwing object, a conical positioning concave block and a fishing line hole block; the fusing type throwing device comprises a throwing device base, a fishing line, a loosening / locking mechanism, a fusing device and a power supply system. According to the fusing type launching device and method provided by the invention, the similarity criterion during a wind tunnel test and the requirement that the mounting posture and the launching process track of a hanging point launching model can have repeatability are met, and the accuracy of a wind tunnel test result can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind tunnel experiments, and particularly relates to a fusing type delivery device and method. Background Art

[0002] The delivery wind tunnel experiment is to arrange an aircraft model and a delivery object model in a wind tunnel to study the flight characteristics of the delivery object model during the delivery process under the action of air flow, and the interaction between the flow field around the aircraft model and the flow field around the delivery object model. The delivery wind tunnel experiment needs to carry out tests on the flight characteristics of various delivery object models during the delivery process in the wind tunnel under the conditions that meet the experimental similarity criteria. One major category of tests mainly involves the safety aspects of the aircraft and the delivery object, and the other major category mainly focuses on obtaining the trajectory and attitude of the delivery object during flight. In the delivery wind tunnel experiment, various externally mounted delivery type models are often encountered, such as various types of missiles, decoy bombs, rockets, unmanned aerial vehicles, fuel tanks, etc. At the same time, different aircraft models will also be faced. Under the constraints of the wind tunnel experiment similarity criteria, the aircraft model is generally reduced, which will cause the space for installing the delivery device in the aircraft carrier to be narrow, increasing the experimental difficulty.

[0003] Currently, the traditional method is to adopt the scheme of "constantan wire fusing" + "external mechanism". This scheme has the disadvantages of uncontrollable melting point position, the delivery device will affect the flow field, and the repeatability accuracy needs to be improved. In addition, there are also problems of universality and efficiency when different mass delivery objects need to be replaced in the experiment. Therefore, whether the delivery device has adaptability, whether it affects the flow field, whether it has an impact on the initial attitude of the delivery object, and further the impact on the repeatability of the experimental results will directly affect the success or failure of the wind tunnel experiment results. Summary of the Invention

[0004] Aiming at the defects existing in the prior art, the present invention provides a fusing type delivery device and method, which can effectively solve the above problems.

[0005] The technical solution adopted by the present invention is as follows:

[0006] The present invention provides a fusing type delivery device, including a fusing type delivery device (1) and a suspension point delivery model (2);

[0007] The hanging point delivery model (2) includes a delivery object (2.1), a conical positioning concave block (2.2), and a fishing line hole block (2.3); define the axis of the delivery object (2.1) as the x direction; the direction perpendicular to the vertical plane of the delivery object (2.1) is the z direction; the y direction is determined by the right-hand rule among the x, y, and z directions; at the position where the surface of the delivery object (2.1) intersects the yz plane where the centroid is located along the x direction is the position of the fishing line hole block (2.3), and the axis of its fishing line hole is within the yz plane where the centroid is located; on both sides of the position of the fishing line hole block (2.3) at symmetric positions, the conical positioning concave blocks (2.2) are respectively arranged, presenting an overall "one"-shaped arrangement;

[0008] The fusing type delivery device (1) includes a delivery device base (1.1), a fishing line (1.2), a release / locking mechanism (1.3), a fusing device (1.4), and a power supply system;

[0009] At the bottom of the delivery device base (1.1), there are two conical positioning convex blocks (1.1.4), which are adapted to the conical positioning concave blocks (2.2) of the hanging point delivery model (2); inside the delivery device base (1.1), the release / locking mechanism (1.3) and the fusing device (1.4) are installed. One end of the fishing line (1.2) is wound around the release / locking mechanism (1.3), and through the release / locking mechanism (1.3), the retraction and release of the fishing line (1.2) are controlled. At the same time, the fishing line (1.2) passes through the fusing device (1.4), and the fusing device (1.4) fuses the fishing line (1.2); the fusing device (1.4) is powered and heated by the power supply system; the other end of the fishing line (1.2) is fixed to the fishing line hole block (2.3).

[0010] Preferably, after the conical positioning concave block (2.2) fits with the conical positioning convex block (1.1.4), the conical surface shapes of the conical positioning concave block (2.2) and the conical positioning convex block (1.1.4) are exactly the same, and at the same time, the positioning in the y direction, x, and z directions is realized.

[0011] Preferably, the outer shape of the delivery device base (1.1) is determined by the carrier shape of the aircraft hanging point, and a wire hole (1.1.1), a fixed position for the fusing device (1.1.2), and a fixed position for the release / locking mechanism (1.1.3) are reserved.

[0012] Preferably, the fusing device (1.4) includes a heating rod (1.4.1), a ceramic tube (1.4.2), and a wire end (1.4.3);

[0013] The heating rod (1.4.1) forms a loop through the wire head (1.4.3), switch and DC power supply, and fuses the fishing line (1.2) on the heating rod (1.4.1) by heating;

[0014] The ceramic tube (1.4.2) plays a heat insulation role between the heating rod (1.4.1) and the base of the feeding device (1.1), and one ceramic tube (1.4.2) is arranged at each end of the heating rod (1.4.1).

[0015] Preferably, the release / lock mechanism (1.3) includes a rotating external gear component (1.3.1), a fixed internal gear (1.3.2), a direction wrench (1.3.3), a rotating wrench (1.3.4), a fixed bearing (1.3.5) and a snap ring (1.3.6);

[0016] The rotating external gear component (1.3.1) penetrates into the interior of the fixed internal gear (1.3.2) and is limited by the snap ring (1.3.6);

[0017] The fixed internal gear (1.3.2) is fixed within the base of the feeding device (1.1); the fishing line hole of the rotating external gear component (1.3.1) passes through one end of the fishing line (1.2); one end of the rotating external gear component (1.3.1) is connected to the fixed bearing (1.3.5) embedded within the base of the feeding device (1.1), enabling the rotation of the rotating external gear component (1.3.1) relative to the base of the feeding device (1.1);

[0018] The direction wrench (1.3.3) is used to control the rotation direction of the rotating external gear component (1.3.1); the rotating wrench (1.3.4) is used to cause the rotating external gear component (1.3.1) to continuously rotate counterclockwise or clockwise within the fixed internal gear (1.3.2). When the rotating external gear component (1.3.1) continuously rotates clockwise, continuous lowering and release of the fishing line (1.2) is achieved; when the rotating external gear component (1.3.1) continuously rotates counterclockwise, continuous rising and winding of the fishing line (1.2) is achieved.

[0019] Preferably, the rotating external gear component (1.3.1) includes a rotating body (1.3.1.1), a direction gear (1.3.1.2), a pin (1.3.1.3), a direction selector (1.3.1.4), a spring (1.3.1.5), a hollow stud (1.3.1.6) and a pressure screw (1.3.1.7);

[0020] An axial hole (A1) is provided at the center of the rotating body (1.3.1.1). The upper part of the rotating body (1.3.1.1) has a grooved structure plane (A2). Moreover, the grooved structure plane (A2) has a groove (A3) communicating with the axial hole (A1), and the width of the groove (A3) is greater than the diameter of the hollow stud (1.3.1.6).

[0021] The direction selector (1.3.1.4) is arranged in the axial hole (A1) of the rotating body (1.3.1.1); a spring (1.3.1.5) is installed in the hole of the direction selector (1.3.1.4); the hollow stud (1.3.1.6) is inserted into the groove (A3), and the hollow stud (1.3.1.6) is sleeved outside the spring (1.3.1.5); a pin (1.3.1.3) connected to the rotating body (1.3.1.1) is arranged directly above the groove (A3); the central hole of the direction gear (1.3.1.2) is sleeved outside the pin (1.3.1.3), enabling the direction gear (1.3.1.2) to rotate clockwise or counterclockwise around the pin (1.3.1.3), and the bottom of the direction gear (1.3.1.2) presses on the upper surface of the hollow stud (1.3.1.6).

[0022] The present invention also provides a dropping method for the fuse-type dropping device described above, including the following steps:

[0023] Step S1: Utilize the loosening function of the release / locking mechanism (1.3) to move the fishing line (1.2) on the release / locking mechanism (1.3) downward to a sufficient length by rotating the wrench (1.3.4).

[0024] Step S2: Then pass the fishing line (1.2) through the hanging hole of the fishing line hole block (2.3) of the hanging point dropping model (2) and tie a knot to fix the hanging point dropping model (2).

[0025] Then, use the direction wrench (1.3.3) of the release / locking mechanism (1.3) to achieve the reverse inclination of the direction gear (1.3.1.2), and then lift the hanging point dropping model (2) upward by rotating the wrench (1.3.4) until the conical positioning concave block (2.2) and the conical positioning convex block (1.1.4) are in contact; and lock the fishing line (1.2) with the gear in the release / locking mechanism (1.3).

[0026] Finally, start the fusing device (1.4) to quickly fuse the fishing line (1.2) and achieve the free-fall dropping of the hanging point dropping model (2).

[0027] Preferably, step S1 is specifically as follows:

[0028] Initially, it is assumed that under the action of the direction selector (1.3.1.4), the hollow column head (1.3.1.6) rotates to one side within the groove (A3); at this time, due to the groove structure plane (A2) provided inside the rotating body (1.3.1.1), the direction gear (1.3.1.2) is in an inclined state, with one end fitting against the groove structure plane (A2) and the other end being lifted by the hollow column head (1.3.1.6), resulting in the teeth at the other end of the direction gear (1.3.1.2) engaging with the fixed internal teeth (1.3.2);

[0029] At this time, by rotating the rotating body (1.3.1.1) clockwise through the rotating wrench (1.3.4), the hollow column head (1.3.1.6) can move slightly up and down under the action of the spring (1.3.1.5), further causing the teeth of the direction gear (1.3.1.2) to move slightly up and down, thereby realizing the clockwise rotational movement of the rotating external tooth component (1.3.1), and the continuous descent and release of the fishing line (1.2) can be achieved;

[0030] The upward lifting of the hanging point delivery model (2) is specifically as follows:

[0031] By rotating the direction selector (1.3.1.4) counterclockwise through the direction wrench (1.3.3), the hollow column head (1.3.1.6) is driven to rotate to the other side within the groove (A3). The hollow column head (1.3.1.6) lifts the bottom end of the direction gear (1.3.1.2) to make it engage with the fixed internal teeth (1.3.2), while the other end that was originally engaged with the fixed internal teeth (1.3.2) becomes disengaged, thus making the direction gear (1.3.1.2) in another opposite inclined state;

[0032] At this time, by rotating the rotating body (1.3.1.1) counterclockwise through the rotating wrench (1.3.4), the hollow column head (1.3.1.6) can move slightly up and down under the action of the spring (1.3.1.5), further causing the teeth of the direction gear (1.3.1.2) to move slightly up and down, thereby realizing the counterclockwise rotational movement of the rotating external tooth component (1.3.1), and the continuous upward winding of the fishing line (1.2) can be achieved.

[0033] A fusing type delivery device and method provided by the present invention have the following advantages:

[0034] A fuse-type delivery device and method provided by the present invention meet the similarity criteria during wind tunnel tests and the requirements that the installation attitude of the hanging-point delivery model and the trajectory during the delivery process can be repeated, which can improve the accuracy of wind tunnel test results. Description of the Drawings

[0035] Figure 1 is the overall model structure diagram of the fuse-type delivery device provided by the present invention before fusing;

[0036] Figure 2 is the structure diagram when the hanging-point delivery model and the fuse-type delivery device are separated after fusing the fuse-type delivery device provided by the present invention;

[0037] Figure 3 is the structure diagram of the hanging-point delivery model provided by the present invention;

[0038] Figure 4 is the partial view of the hanging-point delivery model provided by the present invention;

[0039] Figure 5 is the structure diagram of the conical positioning concave block and the conical positioning convex block provided by the present invention;

[0040] Figure 6 is the structure diagram of the fuse-type delivery device provided by the present invention;

[0041] Figure 7 is the overall structure diagram of the base and the conical positioning convex block of the fuse-type delivery device provided by the present invention;

[0042] Figure 8 is the structure diagram of the fuse-type delivery device provided by the present invention;

[0043] Figure 9 is the structure diagram of the release / lock mechanism provided by the present invention;

[0044] Figure 10 is the first-step assembly process diagram of the release / lock mechanism provided by the present invention;

[0045] Figure 11 is the second-step assembly process diagram of the release / lock mechanism provided by the present invention;

[0046] Figure 12 is the third-step assembly process diagram of the release / lock mechanism provided by the present invention;

[0047] Figure 13 is the fourth-step assembly process diagram of the release / lock mechanism provided by the present invention;

[0048] Figure 14 is the fifth-step assembly process diagram of the release / lock mechanism provided by the present invention;

[0049] Figure 15 It is the sixth-step assembly process diagram of the release / locking mechanism provided by the present invention;

[0050] Figure 16 It is the seventh-step assembly process diagram of the release / locking mechanism provided by the present invention;

[0051] Figure 17 It is the first three-dimensional diagram of the release / locking mechanism provided by the present invention after assembly;

[0052] Figure 18 It is the second three-dimensional diagram of the release / locking mechanism provided by the present invention after assembly;

[0053] Figure 19 It is the overall model structure diagram of the long and slender large-mass projectile with double fusing points before fusing provided by the present invention.

[0054] Wherein:

[0055] 1 - Fusing-type delivery device; 1.1 - Delivery device base; 1.1.1 - Wire hole; 1.1.2 - Fusing device fixing position; 1.1.3 - Release / locking mechanism fixing position; 1.1.4 - Conical positioning bump; 1.2 - Fishing line; 1.3 - Release / locking mechanism; 1.3.1 - Rotating external gear component; 1.3.1.1 - Rotating main body; 1.3.1.2 - Direction gear; 1.3.1.3 - Pin; 1.3.1.4 - Direction selector; 1.3.1.5 - Spring; 1.3.1.6 - Hollow stud; 1.3.1.7 - Pressure screw; 1.3.2 - Fixed internal gear; 1.3.3 - Direction wrench; 1.3.4 - Rotating wrench; 1.3.5 - Fixed bearing; 1.3.6 - Snap ring; 1.4 - Fusing device; 1.4.1 - Heating rod; 1.4.2 - Ceramic tube; 1.4.3 - Wire end; A1 - Axial hole; A2 - Groove structure plane; A3 - Groove;

[0056] 2 - Hanging-point delivery model; 2.1 - Projectile; 2.2 - Conical positioning recess; 2.3 - Fishing line hole block;

[0057] 3 - Long and slender large-mass projectile;

[0058] 4 - Double-fusing delivery device. Detailed implementation manners

[0059] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0060] To solve the key problem of the adaptability between the suspension point release model and the release device during wind tunnel tests, and on the premise of ensuring the repeatability of the release model's attitude, the present invention proposes a fuse-type release device and method that meet the design conditions of the spatial compatibility between the release device and the carrier, including a suspension point release model and a fuse-type release device; the suspension point release model includes a release model, two conical positioning concave blocks, and a suspension hole; the fuse-type release device includes a release device base, two conical positioning convex blocks, a fishing line, a fusing device, and a release / locking mechanism. The fuse-type release device and method provided by the present invention meet the similarity criteria during wind tunnel tests and the requirements that the installation attitude of the suspension point release model and the trajectory during the release process can be repeated, and can improve the accuracy of the wind tunnel test results.

[0061] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the process of the embodiments of the present invention. Here, the entire implementation process of the present invention is described by simulating the scenario of various equipment releases during the flight of an aircraft in a wind tunnel, and various equipment are released in a "free fall" manner.

[0062] The present invention can solve the key problem of the spatial compatibility design between the release device of the dropped object model and the carrier during wind tunnel tests. This release device appears in the form of a cuboid, and the outer shapes of different aircraft and release point components can endow their own outer shapes on the basis of the above cuboid form. That is, the present invention proposes a fuse-type release device, which adopts an embedded design and can be used for the wind tunnel tests of the release of various suspension point equipment. For example, the release of a fuel tank model is carried out as shown in the attached Figure 1 and attached Figure 2 figures, including a suspension point release model and a fuse-type release device.

[0063] The structures of the suspension point release model 2 and the fuse-type release device 1 will be introduced in detail below:

[0064] (1) Suspension point release model

[0065] Referring to the attached Figure 3 ~attached Figure 5 figures, the suspension point release model 2 includes a dropped object 2.1, a conical positioning concave block 2.2 in the y direction, and a fishing line hole block 2.3;

[0066] Define the axis of the dropped object 2.1 as the x direction; the direction perpendicular to the vertical plane of the dropped object 2.1 is the z direction; the y direction is determined by the right-hand rule among the x, y, and z directions;

[0067] The position where the surface of the projectile 2.1 intersects the yz plane passing through the centroid in the x direction is the position of the fishing line hole block 2.3. The axis of the fishing line hole lies in the yz plane where the centroid is located. On both sides of the fishing line hole block 2.3, conical positioning concave blocks 2.2 are arranged symmetrically, presenting an overall "one" - shaped layout. The conical positioning concave block 2.2 is provided with a conical concave pit, and the conical axis is in the y direction.

[0068] The conical positioning concave block 2.2 can achieve positioning in the y direction. After the two conical positioning concave blocks 2.2 are fitted with the conical positioning convex blocks 1.1.4 on the fuse - type delivery device 1, since the conical surface shapes of the conical positioning concave block 2.2 and the conical positioning convex block 1.1.4 are exactly the same, it can also achieve positioning in the x and z directions simultaneously.

[0069] (2) Fuse - type delivery device 1

[0070] See Figure 6 , the fuse - type delivery device 1 includes a delivery device base 1.1, a fishing line 1.2, a release / lock mechanism 1.3, a fusing device 1.4, and a power supply system.

[0071] The release / lock mechanism 1.3 and the fusing device 1.4 are installed inside the delivery device base 1.1. One end of the fishing line 1.2 is wound around the release / lock mechanism 1.3. Through the release / lock mechanism 1.3, the retraction and release of the fishing line 1.2 are controlled. At the same time, the fishing line 1.2 passes through the fusing device 1.4, and the fusing device 1.4 fuses the fishing line 1.2; the fusing device 1.4 is powered and heated by the power supply system; the other end of the fishing line 1.2 is fixed to the fishing line hole block 2.3.

[0072] See Figure 7 , the external shape of the delivery device base 1.1 is completely determined by the external shape of the aircraft mounting point carrier. Only the internal shape is provided here, and it can be adapted according to different mounting point shapes; wire holes 1.1.1, a fixed position 1.1.2 for the fusing device, and a fixed position 1.1.3 for the release / lock mechanism are reserved; at the bottom of the delivery device base 1.1, two conical positioning convex blocks 1.1.4 are provided, which are adapted to the conical positioning concave blocks 2.2 on the aforementioned hanging - point delivery model 2.

[0073] See Figure 8, the fusing device 1.4 is the core component of the present invention and is composed of a heating rod 1.4.1, a ceramic tube 1.4.2, and a wire end 1.4.3. The heating rod 1.4.1 forms a loop through the wire end 1.4.3, a switch, and a DC power supply, and fuses the fishing line 1.2 on the heating rod 1.4.1 by heating; the ceramic tube 1.4.2 mainly plays a heat insulation role between the heating rod 1.4.1 and the base 1.1 of the dispensing device, and one ceramic tube 1.4.2 is provided at each end of the heating rod 1.4.1. First, install the ceramic tube 1.4.2 on the base 1.1 of the dispensing device, then insert the heating rod 1.4.1 into the ceramic tube 1.4.2, and finally connect the DC power supply through the wire end 1.4.3.

[0074] See Figure 9 , the release / lock mechanism 1.3 is a structure specially developed for the present invention and is another core component of the present invention, including a rotating external gear component 1.3.1, a fixed internal gear 1.3.2, a rotating wrench 1.3.4, a direction wrench 1.3.3, a fixed bearing 1.3.5, and a snap ring 1.3.6.

[0075] The rotating external gear component 1.3.1 penetrates into the interior of the fixed internal gear 1.3.2 and is limited by the snap ring 1.3.6;

[0076] The fixed internal gear 1.3.2 is fixed within the base 1.1 of the dispensing device; the fishing line hole of the rotating external gear component 1.3.1 passes through one end of the fishing line 1.2; one end of the rotating external gear component 1.3.1 is connected to the fixed bearing 1.3.5 embedded within the base 1.1 of the dispensing device, realizing the rotation of the rotating external gear component 1.3.1 relative to the base 1.1 of the dispensing device;

[0077] The direction wrench 1.3.3 is used to control the rotation direction of the rotating external gear component 1.3.1; the rotating wrench 1.3.4 is used to make the rotating external gear component 1.3.1 continuously rotate counterclockwise or clockwise within the fixed internal gear 1.3.2. When the rotating external gear component 1.3.1 continuously rotates clockwise, continuous release of the fishing line 1.2 is achieved; when the rotating external gear component 1.3.1 continuously rotates counterclockwise, continuous winding of the fishing line 1.2 is achieved.

[0078] See Figures 10 to 16 , and shows the assembly process diagram of the release / lock mechanism 1.3.

[0079] The rotating external gear component 1.3.1 includes a rotating body 1.3.1.1, a direction gear 1.3.1.2, a pin 1.3.1.3, a direction selector 1.3.1.4, a spring 1.3.1.5, a hollow stud 1.3.1.6, and a wire pressing screw 1.3.1.7.

[0080] An axial hole A1 is provided at the center of the rotating body 1.3.1.1. The upper part of the rotating body 1.3.1.1 has a groove structure plane A2. And the groove structure plane A2 has a groove A3 communicating with the axial hole A1. The width of the groove A3 is greater than the diameter of the hollow stud 1.3.1.6.

[0081] The direction selector 1.3.1.4 is arranged in the axial hole A1 of the rotating body 1.3.1.1; the spring 1.3.1.5 is installed in the hole of the direction selector 1.3.1.4; the hollow stud 1.3.1.6 is inserted into the groove A3 and the hollow stud 1.3.1.6 is sleeved outside the spring 1.3.1.5; the pin 1.3.1.3 connected to the rotating body 1.3.1.1 is provided directly above the groove A3; the central hole of the direction gear 1.3.1.2 is sleeved outside the pin 1.3.1.3, so that the direction gear 1.3.1.2 can rotate clockwise or counterclockwise around the pin 1.3.1.3. And the bottom of the direction gear 1.3.1.2 presses on the upper surface of the hollow stud 1.3.1.6.

[0082] Specifically, first, the direction selector 1.3.1.4 is stuffed into the hole of the rotating body 1.3.1.1. Immediately afterwards, the spring 1.3.1.5 is installed in the small hole on the direction selector 1.3.1.4, and the hollow stud 1.3.1.6 is sleeved on the spring 1.3.1.5. Then, the direction gear 1.3.1.2 is pressed on the hollow stud 1.3.1.6 to make the pin hole of the direction gear 1.3.1.2 concentric with the pin hole of the rotating body 1.3.1.1. The pin 1.3.1.3 is inserted into the above-mentioned concentric holes, so that the direction gear 1.3.1.2 can rotate around the pin 1.3.1.3, which is named the rotating external gear component 1.3.1. Finally, the rotating external gear component 1.3.1 is inserted into the fixed internal gear 1.3.2, and a circlip 1.3.6 is installed at the other end to complete the assembly of the fixed internal gear 1.3.2 and the rotating external gear component 1.3.1.

[0083] Next, the fishing line 1.2 is passed through the fishing line hole on the rotating body 1.3.1.1 and pressed tightly with the wire pressing screw 1.3.1.7.

[0084] Since the inner side of the rotating body 1.3.1.1 is provided with a groove structure plane, one end of the direction gear 1.3.1.2 fits against the groove structure plane, and the other end is lifted by the hollow stud 1.3.1.6, causing the teeth of the direction gear 1.3.1.2 that are lifted to engage with the fixed internal teeth 1.3.2. At this time, by rotating the rotating body 1.3.1.1 clockwise with the rotating wrench 1.3.4, the hollow stud 1.3.1.6 can move slightly up and down under the action of the spring 1.3.1.5, further causing the teeth of the direction gear 1.3.1.2 to move slightly up and down, thereby realizing the clockwise rotational movement of the rotating outer tooth component 1.3.1, and the continuous descent and release of the fishing line 1.2 can be achieved.

[0085] By using the direction wrench 1.3.3 to achieve the counterclockwise rotation of the direction selector 1.3.1.4 (i.e., reversing the original rotation direction), the bottom end of the direction gear 1.3.1.2 is driven to lift and engage with the fixed internal teeth 1.3.2, while the other end that was originally engaged with the fixed internal teeth 1.3.2 becomes disengaged, thus realizing the reverse of the rotation direction. At this time, when the rotating wrench 1.3.4 is rotated counterclockwise, the rotating outer tooth component 1.3.1 can be continuously rotated counterclockwise, and the continuous upward winding of the fishing line 1.2 can be achieved. Here, the outer surface of the fixed internal teeth 1.3.2 is cooperatively connected with the base 1.1 of the dispensing device, and the other side of the rotating cylinder of the rotating outer tooth component 1.3.1 is connected to the fixed bearing 1.3.5 embedded in the base 1.1 of the dispensing device.

[0086] The structure of the release / locking mechanism 1.3 after assembly is as Figure 17 and Figure 18 shown.

[0087] For slender and large-mass projectiles, a double fusing point is required to tighten the projectile. At this time, the center of mass of the projectile is geometrically in the middle of the double fusing point. Figure 19 The overall model structure diagram before fusing of the double fusing point is given.

[0088] The present invention also provides a dispensing method for a fusing type dispensing device, including the following steps:

[0089] Step S1, using the release function of the release / locking mechanism 1.3, moving the fishing line 1.2 on the release / locking mechanism 1.3 downward to a sufficient length through the rotating wrench 1.3.4;

[0090] Step S1 is specifically:

[0091] Initially, assume that under the action of the direction selector 1.3.1.4, the hollow column head 1.3.1.6 rotates to one side within the groove A3; at this time, since the groove structure plane A2 is provided inside the rotating body 1.3.1.1, the direction gear 1.3.1.2 is in an inclined state, one end of which is in contact with the groove structure plane A2, and the other end is lifted by the hollow column head 1.3.1.6, resulting in the teeth at the other end of the direction gear 1.3.1.2 being engaged with the fixed internal teeth 1.3.2;

[0092] At this time, rotate the rotating body 1.3.1.1 clockwise through the rotating wrench 1.3.4. The hollow column head 1.3.1.6 can move slightly up and down under the action of the spring 1.3.1.5, further causing the teeth of the direction gear 1.3.1.2 to move slightly up and down, thereby realizing the clockwise rotational movement of the rotating external tooth component 1.3.1, and the continuous descent and release of the fishing line 1.2 can be achieved.

[0093] Step S2, then pass the fishing line 1.2 through the hanging hole of the fishing line hole block 2.3 of the hanging point dropping model 2 and tie a knot to fix the hanging point dropping model 2;

[0094] Then, reverse the inclination of the direction gear 1.3.1.2 through the direction wrench 1.3.3 of the release / locking mechanism 1.3, and then lift the hanging point dropping model 2 upward through the rotating wrench 1.3.4 until the conical positioning concave block 2.2 and the conical positioning convex block 1.1.4 are in contact; and lock the fishing line 1.2 through the gear in the release / locking mechanism 1.3;

[0095] Finally, start the fusing device 1.4 to quickly fuse the fishing line 1.2 and realize the free-fall dropping of the hanging point dropping model 2. Among them, the fusing device 1.4 can be connected to the outside of the wind tunnel through a wire, and the DC power supply of the entire circuit is also outside the wind tunnel. It can be achieved by closing a switch in the circuit, and this switch can also be connected to the control system to realize the program control of the dropping action.

[0096] In this step, the upward lifting of the hanging point dropping model 2 is specifically as follows:

[0097] Realize the counterclockwise rotation of the direction selector 1.3.1.4 through the direction wrench 1.3.3, thereby driving the hollow column head 1.3.1.6 to rotate to the other side within the groove A3. The hollow column head 1.3.1.6 lifts the bottom end of the direction gear 1.3.1.2 to make it engage with the fixed internal teeth 1.3.2, while the other end that was originally engaged with the fixed internal teeth 1.3.2 becomes disengaged, so that the direction gear 1.3.1.2 is in another opposite inclined state;

[0098] At this time, the rotary main body 1.3.1.1 is rotated counterclockwise by the rotary wrench 1.3.4. Under the action of the spring 1.3.1.5, the hollow column head 1.3.1.6 can move slightly up and down, further causing the teeth of the direction gear 1.3.1.2 to move slightly up and down, so as to realize the counterclockwise rotation of the rotary external gear component 1.3.1, and the continuous upward winding of the fishing line 1.2 can be realized.

[0099] The present invention is derived from the analysis and summary of wind tunnel tests for various types of aircraft to drop suspended payloads at various suspension points, and a fuse-type dropping device and method are developed, and a principle verification wind tunnel test study is carried out.

[0100] The present invention is intended to protect the structural form of such a dropping device, including a suspension point dropping model and a fuse-type dropping device, specifically as follows:

[0101] (1) The suspension point dropping model includes: a dropping model, two conical positioning concave blocks and a fishing line hole block, where the ratio of the conical bottom radius to the conical height ranges from 0.1 to 6;

[0102] (2) The fuse-type dropping device includes: a dropping device base, two conical positioning convex blocks, a fishing line, a release / lock mechanism, a fusing device, and a power supply system, where the ratio of the conical height of the conical positioning convex block to the conical height of the conical positioning concave block ranges from 1.1 to 10, and when the conical positioning convex block and the conical positioning concave block cooperate, the ratio of the overlapping height of the two to their respective heights is less than 50%;

[0103] (3) The release / lock mechanism includes: a rotary external gear component, a fixed internal gear, a rotary wrench, a direction wrench, a fixed bearing, and a snap ring;

[0104] (4) The fusing device includes: a heating rod, a ceramic tube, and a terminal;

[0105] (5) The power supply system includes: a DC power supply, a wire, a switch, etc.

[0106] Seven repeated dropping experiments were carried out on the ground for two suspension point dropping models with different masses, and the experimental measurement results are shown in Table 1, where Model 1 has a single fusing point and Model 2 has a double fusing point.

[0107] Table 1 Measurement results of projectile model dropping

[0108] Test item Model 1 Model 2 Position repetition accuracy <0.1％ <0.2％

[0109] It can be seen from Table 1 that the fuse-type dropping device designed by the present invention can meet the requirements of model dropping experiments in the wind tunnel, with high position accuracy, stable attitude during model dropping, and good repeatability of dropping experiments.

[0110] 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 modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A fusing type dispensing device, characterized in that, It includes a fusing type dropping device (1) and a suspension point dropping model (2). The suspension point dropping model (2) includes a dropped object (2.1), a conical positioning concave block (2.2) and a fishing line hole block (2.3); define the axis of the dropped object (2.1) as the x direction; the direction perpendicular to the vertical plane of the dropped object (2.1) is the z direction; the y direction is determined by the right-hand rule among the x, y, and z directions; the position of the fishing line hole block (2.3) is at the intersection of the surface of the dropped object (2.1) along the x direction and the yz plane where the centroid is located, and the axis of its fishing line hole is within the yz plane where the centroid is located; the conical positioning concave blocks (2.2) are respectively arranged symmetrically on both sides of the position of the fishing line hole block (2.3), presenting an overall "one"-shaped arrangement. The fusing type dropping device (1) includes a dropping device base (1.1), a fishing line (1.2), a release / locking mechanism (1.3), a fusing device (1.4) and a power supply system. Two conical positioning convex blocks (1.1.4) are provided at the bottom of the dropping device base (1.1), which are adapted to the conical positioning concave blocks (2.2) of the suspension point dropping model (2); the release / locking mechanism (1.3) and the fusing device (1.4) are installed inside the dropping device base (1.1), one end of the fishing line (1.2) is wound around the release / locking mechanism (1.3), and through the release / locking mechanism (1.3), the retraction and release of the fishing line (1.2) are controlled. At the same time, the fishing line (1.2) passes through the fusing device (1.4), and the fusing device (1.4) fuses the fishing line (1.2); the fusing device (1.4) is powered and heated by the power supply system; the other end of the fishing line (1.2) is fixed to the fishing line hole block (2.3).

2. The fusing type dispensing device according to claim 1, wherein After the conical positioning concave block (2.2) fits with the conical positioning convex block (1.1.4), the conical surface shapes of the conical positioning concave block (2.2) and the conical positioning convex block (1.1.4) are exactly the same, and at the same time, the positioning in the y direction, x and z directions is realized.

3. The fuse-type delivery device according to claim 1, characterized in that, The outer shape of the dropping device base (1.1) is determined by the carrier shape of the aircraft suspension point, and a wire hole (1.1.1), a fixed position for the fusing device (1.1.2) and a fixed position for the release / locking mechanism (1.1.3) are reserved.

4. A fusing type dispensing device according to claim 1, characterized in that, The fusing device (1.4) includes a heating rod (1.4.1), a ceramic tube (1.4.2) and a wire end (1.4.3). The heating rod (1.4.1) forms a loop through the wire end (1.4.3), a switch and a DC power supply, and the fishing line (1.2) on the heating rod (1.4.1) is fused by heating. The ceramic tube (1.4.2) plays a heat insulation role between the heating rod (1.4.1) and the dropping device base (1.1), and one ceramic tube (1.4.2) is arranged at each end of the heating rod (1.4.1).

5. A fusing type dispensing device according to claim 1, wherein, The release / locking mechanism (1.3) includes a rotating external gear component (1.3.1), a fixed internal gear (1.3.2), a direction wrench (1.3.3), a rotating wrench (1.3.4), a fixed bearing (1.3.5), and a circlip (1.3.6); The rotating external gear component (1.3.1) penetrates into the interior of the fixed internal gear (1.3.2) and is limited by the circlip (1.3.6); The fixed internal gear (1.3.2) is fixed within the base (1.1) of the dispensing device; one end of the fishing line (1.2) passes through the fishing line hole of the rotating external gear component (1.3.1); one end of the rotating external gear component (1.3.1) is connected to the fixed bearing (1.3.5) embedded in the base (1.1) of the dispensing device, enabling the rotation of the rotating external gear component (1.3.1) relative to the base (1.1) of the dispensing device; The direction wrench (1.3.3) is used to control the rotation direction of the rotating external gear component (1.3.1); the rotating wrench (1.3.4) is used to cause the rotating external gear component (1.3.1) to continuously rotate counterclockwise or clockwise within the fixed internal gear (1.3.2). When the rotating external gear component (1.3.1) continuously rotates clockwise, continuous release of the fishing line (1.2) is achieved; when the rotating external gear component (1.3.1) continuously rotates counterclockwise, continuous winding of the fishing line (1.2) is achieved.

6. The fusing type dispensing device according to claim 5, wherein, The rotating external gear component (1.3.1) includes a rotating body (1.3.1.1), a direction gear (1.3.1.2), a pin (1.3.1.3), a direction selector (1.3.1.4), a spring (1.3.1.5), a hollow stud (1.3.1.6), and a wire pressing screw (1.3.1.7); An axial hole (A1) is provided at the center of the rotating body (1.3.1.1). The upper part of the rotating body (1.3.1.1) has a grooved structure plane (A2), and moreover, the grooved structure plane (A2) has a groove (A3) communicating with the axial hole (A1). The width of the groove (A3) is greater than the diameter of the hollow stud (1.3.1.6); The direction selector (1.3.1.4) is disposed within the axial hole (A1) of the rotating body (1.3.1.1); the spring (1.3.1.5) is installed within the hole of the direction selector (1.3.1.4); the hollow stud (1.3.1.6) is inserted into the groove (A3), and the hollow stud (1.3.1.6) is sleeved outside the spring (1.3.1.5); the pin (1.3.1.3) connected to the rotating body (1.3.1.1) is disposed directly above the groove (A3); the central hole of the direction gear (1.3.1.2) is sleeved outside the pin (1.3.1.3), enabling the direction gear (1.3.1.2) to rotate clockwise or counterclockwise around the pin (1.3.1.3), and the bottom of the direction gear (1.3.1.2) presses on the upper surface of the hollow stud (1.3.1.6).

7. A dispensing method of a fusing type dispensing device according to any one of claims 1-6, characterized in that, Including the following steps: Step S1, using the release function of the release / lock mechanism (1.3), the fishing line (1.2) on the release / lock mechanism (1.3) is moved downward by a sufficient length by rotating the wrench (1.3.4). Step S2, then pass the fishing line (1.2) through the hanging hole of the fishing line hole block (2.3) of the hanging point delivery model (2) and tie a knot to fix the hanging point delivery model (2). Then, the reverse inclination of the direction gear (1.3.1.2) is achieved by the direction wrench (1.3.3) of the release / lock mechanism (1.3), and then the hanging point delivery model (2) is lifted upward by rotating the wrench (1.3.4) until the conical positioning concave block (2.2) and the conical positioning convex block (1.1.4) are in contact; and the fishing line (1.2) is locked by the gear in the release / lock mechanism (1.3). Finally, start the fusing device (1.4) to quickly fuse the fishing line (1.2) to achieve the free-fall delivery of the hanging point delivery model (2).

8. The dispensing method of a fusing type dispensing device according to claim 7, characterized in that, Specifically, step S1 is as follows: Initially, assume that under the action of the direction selector (1.3.1.4), the hollow stud (1.3.1.6) rotates to one side within the groove (A3); at this time, due to the groove structure plane (A2) provided within the rotating body (1.3.1.1), the direction gear (1.3.1.2) is in an inclined state, one end of which is in contact with the groove structure plane (A2), and the other end is lifted by the hollow stud (1.3.1.6), resulting in the teeth at the other end of the direction gear (1.3.1.2) being engaged with the fixed internal teeth (1.3.2). At this time, rotate the rotating body (1.3.1.1) clockwise through the rotating wrench (1.3.4). Under the action of the spring (1.3.1.5), the hollow plug (1.3.1.6) can move slightly up and down, further causing the teeth of the direction gear (1.3.1.2) to move slightly up and down, so as to realize the clockwise rotation of the rotating outer tooth component (1.3.1), and then the continuous descent and release of the fishing line (1.2) can be realized. Lifting the hanging point delivery model (2) upward specifically means: Realize the counterclockwise rotation of the direction selector (1.3.1.4) through the direction wrench (1.3.3), so as to drive the hollow plug (1.3.1.6) to rotate to the other side in the groove (A3). The hollow plug (1.3.1.6) jacks up the bottom end of the direction gear (1.3.1.2) to make it engage with the fixed internal teeth (1.3.2), while the other end that was originally engaged with the fixed internal teeth (1.3.2) becomes disengaged, so that the direction gear (1.3.1.2) is in another opposite inclined state. At this time, rotate the rotating body (1.3.1.1) counterclockwise through the rotating wrench (1.3.4). Under the action of the spring (1.3.1.5), the hollow plug (1.3.1.6) can move slightly up and down, further causing the teeth of the direction gear (1.3.1.2) to move slightly up and down, so as to realize the counterclockwise rotation of the rotating outer tooth component (1.3.1), and then the continuous upward winding of the fishing line (1.2) can be realized.

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