Hanging conversion device and method for adjusting falling posture of airdrop piece

Abstract

The invention discloses a hanging conversion device and method for adjusting the falling posture of an air-drop piece, the hanging conversion device comprises a parachute, a hanging belt winding device and the air-drop piece, the two ends of the air-drop piece in the length direction are provided with a front hanging point and a rear hanging point, and the two sides of the middle of the air-drop piece in the width direction are provided with a left hanging point and a right hanging point; the left lifting point and the right lifting point are connected with parachute connecting points of the parachute through side lifting belts, lifting belt winding devices are arranged on the front lifting point and the rear lifting point, and the lifting belt winding devices of the front lifting point and the rear lifting point are connected with the parachute connecting points of the parachute through front lifting belts and rear lifting belts respectively. The left and right hanging points and the side hanging belts are additionally arranged on the basis of front and rear point hanging conversion, when the air-drop piece is converted into the horizontal state from the vertical state, the gravity center position change in the air-drop piece conversion process can be kept small by fixing the release speed of the front hanging belt and enabling the side hanging belts to be kept in the straightened state all the time, and the stability of the air-drop piece is improved. The shaking degree of the air-drop piece in the falling posture changing process is reduced, the problem of hanging overload is effectively solved, operation is easy, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the field of airdrop technology, and in particular to a suspension conversion device and method for adjusting the landing posture of an airdrop component. Background Art

[0002] In the airdrop system, the slender airdropped object is subjected to a large impact during the landing process. At present, the front and rear point suspension is generally used as the suspension method during the airdrop of the slender airdropped object. The suspension conversion process is shown in Figure 1(a), Figure 1(b) and Figure 1(c). Among them, Figure 1(a) shows the slender airdropped object in a vertical suspension state before the suspension conversion, at which time the rear sling bearing system reaches stability; Figure 1(b) shows the process of the front sling being released; Figure 1(c) shows the state where the front sling is completely released. During the conversion process, the airdropped object will have a certain amplitude of pitch oscillation at the beginning, which will gradually disappear under the action of air damping and tend to be stable. However, during the suspension conversion process, the suspension is prone to overload and the airdropped object shakes too much. Summary of the invention

[0003] In order to improve the stability of a slender airdrop component during landing and meet the need for safe landing of the airdrop component, the present invention provides a suspension conversion device and method for adjusting the landing posture of the airdrop component.

[0004] To this end, the technical solution adopted in the present invention is:

[0005] A suspension conversion device for adjusting the landing posture of an airdrop component comprises a parachute, a sling retracting device and an airdrop component, wherein a front suspension point and a rear suspension point are respectively arranged at both ends of the length direction of the airdrop component, a left suspension point and a right suspension point are respectively arranged at both sides of the middle width direction of the airdrop component, the left suspension point and the right suspension point are respectively connected to the parachute connection point of the parachute through side slings, the front suspension point and the rear suspension point are both provided with sling retracting devices, and the sling retracting devices of the front suspension point and the rear suspension point are respectively connected to the parachute connection point of the parachute through the front sling and the rear sling.

[0006] According to the above solution, the airdrop component is slender.

[0007] According to the above scheme, the suspension conversion device also includes a restraint device, and the middle part of the front sling is folded and arranged in the restraint device; a cutter is arranged on one side of the restraint device, and the cutter is used to release the restraint device and release the front sling.

[0008] According to the above scheme, the sling retracting device includes two retracting rollers;

[0009] Two reeling rollers are respectively arranged at the front hanging point and the rear hanging point, and the reeling rollers are connected to the reeling motor. One end of the front sling is wound around the reeling roller at the front hanging point, and the other end is connected to the parachute connection point. One end of the rear sling is wound around the reeling roller at the rear hanging point, and the other end is connected to the parachute connection point.

[0010] A locking device is provided at the reeling roller; a sensor is provided on the reeling roller or the reeling motor, and a controller is respectively connected with the reeling motor, the locking device and the sensor.

[0011] According to the above scheme, the controller controls the release or retraction speed of the front sling by driving the retraction motor to drive the retraction roller. The sensor monitors the actual release or retraction length parameter or speed parameter of the sling, and feeds back to the controller to adjust the release or retraction speed.

[0012] According to the above solution, the locking device includes brake pads on both sides of the roller and a brake caliper connected to the brake pads, and the brake caliper is connected to the controller.

[0013] According to the above scheme, the front hanging point, the rear hanging point, the left hanging point and the right hanging point are respectively fixed on the airdrop part by welding.

[0014] According to the above solution, the restraint device includes a restraint belt; the restraint device is cut by a cutter to release the restraint belt, thereby releasing the restraint device and releasing the front belt.

[0015] According to the above scheme, the parachute contains multiple parachute ropes, and multiple parachute rope connection points are evenly distributed along the circumferential direction of the bottom edge of the parachute canopy. One end of each parachute rope is connected to each parachute rope connection point respectively, and the other end of each parachute rope is gathered at one point and connected to a connecting belt, on which a parachute connection point is provided.

[0016] A method for adjusting the landing posture of an airdrop component using a hanging conversion device for adjusting the landing posture of an airdrop component comprises:

[0017] The airdrop component is initially suspended in a vertical state under a parachute for airdrop, and the parachute is opened after the airdrop, at which time the side straps are initially in a straightened state, and the front strap and the rear strap are initially in a free state;

[0018] The length of the front sling is gradually released through the sling retracting device, and the length of the rear sling is contracted. After the front sling is released, the length of the rear sling is locked, and the airdrop piece is converted from a vertical state to a horizontal state, completing the hanging conversion. At this time, the front sling, rear sling and side sling are in a straightened state.

[0019] The beneficial effects produced by the present invention are:

[0020] 1. The present invention adds left and right suspension points and side suspension straps on the basis of the conversion of front and rear suspension points. When the airdrop part is converted from a vertical state to a horizontal state, the release speed of the front suspension strap is fixed and the side suspension strap is always kept in a straight state. The change of the center of gravity position during the conversion of the airdrop part can be kept small, the degree of shaking during the change of the landing posture of the airdrop part is reduced, and the problem of suspension overload is effectively solved. The operation is simple and easy to use.

[0021] 2. The restraint device and the cutter can release the front sling faster, so that the airdrop unit can be in a horizontal balance state faster; and the restraint device can restrain the excess front sling length after the parachute is airdropped and before the airdrop unit is suspended. This prevents the airdrop unit from deviating from the vertical state and changing the center of gravity due to environmental factors before the suspension conversion during the landing process, thereby reducing the probability of shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG. 1( a ) is a schematic diagram of a slender airdrop component in a vertical hanging state before hanging conversion in the prior art;

[0023] FIG. 1( b ) is a schematic diagram of the process of releasing the front sling when the slender airdrop part is suspended and converted in the prior art;

[0024] FIG. 1( c ) is a schematic diagram of a state of a slender airdrop component in the prior art after the front sling is released after the slender airdrop component is suspended and converted;

[0025] Figure 2 This is a schematic diagram of the overall system of a suspension conversion device according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the installation position of the suspension point of the suspension conversion device according to one embodiment of the present invention;

[0027] Figure 4 The figure is a schematic diagram of the conversion process of a suspension conversion device according to an embodiment of the present invention.

[0028] In the figure: 1-front hanging point; 2-front sling; 3-rear hanging point; 4-rear sling; 5-airdrop piece; 6-left hanging point; 7-right hanging point; 8-side sling; 9-parachute; 10-sling retracting device. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0030] Embodiment 1

[0031] like Figure 2As shown, the present invention provides a suspension conversion device for adjusting the landing posture of an airdrop component, comprising a parachute, a sling retracting device and an airdrop component; the parachute comprises a plurality of parachute ropes, a plurality of parachute rope connection points are evenly spaced along the circumferential direction of the bottom edge of the parachute canopy, one end of each parachute rope is respectively connected to each parachute rope connection point, the other end of each parachute rope is gathered at a point and connected to a connecting belt, and a parachute connection point is arranged on the connecting belt; a front suspension point and a rear suspension point are respectively arranged at both ends of the airdrop component in the length direction, a left suspension point and a right suspension point are respectively arranged on both sides of the middle width direction of the airdrop component, the left suspension point and the right suspension point are respectively connected to the parachute connection point of the parachute through side slings, the side slings comprise a left sling and a right sling, and the front suspension point and the rear suspension point are respectively connected to the front sling and the rear sling.

[0032] The sling reeling device includes two reeling rollers; the two reeling rollers are respectively arranged at the front hanging point and the rear hanging point, and the reeling rollers are connected to the reeling motor. One end of the front sling is wound around the reeling roller at the front hanging point, and the other end is connected to the parachute contact point. One end of the rear sling is wound around the reeling roller at the rear hanging point, and the other end is connected to the parachute contact point. A locking device is provided at the reeling roller; a sensor is provided on the reeling roller or the reeling motor, and the controller is respectively connected to the reeling motor, the locking device and the sensor; the controller drives the reeling roller to rotate by driving the reeling motor, changes the reeling roller speed to control the release speed of the front sling, and the sensor obtains the actual release or reeling speed parameter by measuring the rotation speed of the reeling roller at the front hanging point, and feeds it back to the controller for adjustment; a restraint device is provided on the front sling, the middle part of the front sling is folded and arranged in the restraint device, and a cutter is provided on one side of the restraint device, and the cutter is used to release the restraint device and release the front sling.

[0033] In a preferred embodiment of the present invention, the locking device is a clamping structure composed of brake pads on both sides of the roller and a brake clamp connected to the brake pads, and the brake clamp is connected to a controller. After the current sling is released, the controller controls the brake clamp to clamp the brake pads on both sides of the winding roller, and locks the winding roller by friction so that it cannot rotate.

[0034] In a preferred embodiment of the present invention, the front hanging point, the rear hanging point, the left hanging point and the right hanging point are respectively fixed to the airdrop component by welding.

[0035] The airdrop component is initially suspended in a vertical state under the parachute, the left and right straps are initially in a straightened state, the front and rear straps are initially in a free state, and the length of the front strap is constrained by a restraint device; when the airdrop component is suspended during landing, the restraint device releases the constraint on the length of the front strap, and the front strap is gradually released. The release speed of the front strap is controlled by the controller, and the sensor receives the actual release speed parameters and feeds back to the controller to adjust the release speed; the rear strap is released following the release of the front strap, and is retracted by the winding roller. After the current strap is released, the locking device locks the winding roller at the rear suspension point, so that the winding roller at the rear suspension point can no longer rotate, thereby locking the length of the rear strap; at this time, the airdrop component is converted from a vertical state to a horizontal state, and during the conversion process, the left and right straps are always in a straightened state.

[0036] In a preferred embodiment of the present invention, the restraining device used is specifically a restraining sling, and the restraining device releases the length constraint of the front sling by specifically cutting the restraining sling with a cutter to release the length constraint of the front sling.

[0037] During the hanging conversion process of the airdrop, the left and right slings are always kept straight, so that the center of gravity of the airdrop remains basically unchanged and the airdrop shakes slightly. When the airdrop reaches a horizontal state, the moment of gravity on the left and right hanging points is naturally eliminated.

[0038] Figure 3 and Figure 4 The schematic diagrams of the installation position of the suspension point and the conversion process of the device of this embodiment are shown respectively. Figure 4 The center left hanging point and the center right hanging point are located on both sides of the airdrop surface symmetrically and overlap visually.

[0039] In a preferred embodiment of the present invention, a rocket is selected as an airdrop component. After the rocket is airdropped and before the suspension conversion is performed, it is in a vertical suspension state, at which time the left and right slings are in a straightened state, the front sling is in a free state, and the constraint sling constrains the length of the front sling. After the suspension conversion is started, the cutter cuts off the constraint sling, and the front sling is released in a controlled manner, and its release speed is controlled by the controller. At the same time, the sensor receives the actual release speed parameters and feeds back to the controller, and the controller adjusts the release speed according to the actual release speed; the rewinding roller rolls up the rear sling, and when the front sling is released, the rear sling just reaches the shortest, and the locking device locks the rear sling, and the rocket is converted from a vertical state to a horizontal state. During the conversion process, the rear sling can also suppress the rocket's head rise. In the present embodiment, the entire conversion process of the rocket suspension conversion is almost entirely around the left and right suspension points, the center of gravity position changes little, the energy input to the conversion process is small, and the overload and shaking amplitude of the suspension point of the rocket during landing is reduced. After the airdrop system is installed with the device, the probability of damage to airdropped missiles and other weapons during the airdrop process is greatly reduced, and the device is easy to recover, which is helpful for troop training and use.

[0040] At the same time, the present invention also provides a suspension conversion method for adjusting the landing posture of an airdrop component, comprising:

[0041] The airdrop component is initially suspended in a vertical state under a parachute for airdrop, and the parachute is opened after the airdrop, at which time the side straps are initially in a straightened state, and the front strap and the rear strap are initially in a free state;

[0042] The length of the front sling is gradually released through the sling retracting device, and the length of the rear sling is contracted. After the front sling is released, the length of the rear sling is locked, and the airdrop piece is converted from a vertical state to a horizontal state, completing the hanging conversion. At this time, the front sling, rear sling and side sling are in a straightened state.

[0043] The present invention increases the setting of left and right suspension points and left and right suspension straps on the basis of the conversion of front and rear point suspension in the prior art. When the airdrop component is converted from a vertical state to a horizontal state, the left and right suspension straps remain in a straightened state, which can keep the center of gravity position of the airdrop component small during the conversion process, reduce the degree of shaking of the airdrop component during the landing posture change, and effectively solve the problem of suspension overload. The operation is simple and easy to use. The front suspension strap can be released more quickly by the restraint device and the cutter, and the airdrop component can be in a horizontal balance state more quickly. The restraint device restrains the excess front suspension strap length after the parachute is airdropped and before the airdrop component is converted to suspension, thereby avoiding the airdrop component from deviating from the vertical state and changing the center of gravity position due to environmental factors before the landing process and reducing the probability of shaking.

[0044] Embodiment 2

[0045] The embodiment of the present invention provides a suspension conversion device for adjusting the landing posture of an airdrop component, comprising a parachute, a sling retracting device and an airdrop component; the parachute comprises a plurality of parachute ropes, a plurality of parachute rope connection points are evenly distributed along the circumferential direction of the bottom edge of the parachute canopy, one end of each parachute rope is respectively connected to each parachute rope connection point, the other end of each parachute rope is gathered at a point and connected to a connecting belt, and a parachute connection point is arranged on the connecting belt; the two ends of the airdrop component in the length direction are respectively provided with a front suspension point and a rear suspension point, and the two sides of the middle width direction of the airdrop component are respectively provided with a left suspension point and a right suspension point, The left hanging point and the right hanging point are respectively connected to the parachute connection point of the parachute through side slings, the front hanging point and the rear hanging point are respectively connected to the front sling and the rear sling, and the sling retracting device includes two retracting rollers; the two retracting rollers are respectively arranged at the front hanging point and the rear hanging point, and the retracting rollers are connected to a retracting motor, one end of the front sling is wound around the retracting roller at the front hanging point, and the retracting roller has an excess length of the front sling wound around it; the other end is connected to the parachute connection point, one end of the rear sling is wound around the retracting roller at the rear hanging point, and the other end is connected to the parachute connection point.

[0046] A locking device is provided at the rewinding roller, which is used to lock the rewinding roller at the rear hanging point so that it cannot rotate; a sensor is provided on the rewinding roller or the rewinding motor, and the actual release or rewinding speed parameters are obtained by measuring the rotation speed of the rewinding roller at the front hanging point. The controller is respectively connected to the rewinding motor, the locking device and the sensor, and controls the release or rewinding speed of the sling by changing the rotation speed of the rewinding roller.

[0047] The airdrop component is initially suspended in a vertical state under the parachute, and the side straps, front straps and rear straps are initially in a straightened state, with excess length of the front strap wound in the reeling roller at the front suspension point; when the airdrop component is suspended during landing, the reeling roller at the front suspension point rotates in the opposite direction to gradually release the front strap, and the controller drives the reeling motor to control the release speed of the front strap, and the sensor receives the actual release speed parameters and feeds back to the controller to adjust the release speed; the reeling roller at the rear suspension point rotates forward following the release of the front strap, thereby contracting the rear strap, and after the front strap is released, the locking device locks the reeling roller at the rear suspension point, so that the reeling roller at the rear suspension point can no longer rotate, thereby locking the length of the rear strap; at this time, the airdrop component is converted from a vertical state to a horizontal state, and during the conversion process, the side straps, front straps and rear straps are always in a straightened state.

[0048] In this embodiment, the excess length of the front sling is wound around the reeling roller, and the reeling roller rotates in the opposite direction to release the front sling when the hanging conversion of the airdrop component is performed. This prevents the airdrop component from deviating from the vertical state and changing the center of gravity due to environmental factors before the hanging conversion during the landing process, thereby reducing the probability of shaking.

[0049] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, and two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0050] The order of execution of each step in the above embodiment does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0051] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A suspension conversion device for adjusting the landing posture of an airdropped object, characterized in that: It includes a parachute, a sling retracting device and an airdrop piece. The airdrop piece is respectively provided with a front hanging point and a rear hanging point at both ends in the length direction. The middle of the airdrop piece is respectively provided with a left hanging point and a right hanging point on both sides in the width direction. The left hanging point and the right hanging point are respectively connected to the parachute connection points of the parachute through side slings. The front hanging point and the rear hanging point are both provided with a sling retracting device. The sling retracting devices of the front hanging point and the rear hanging point are respectively connected to the parachute connection points of the parachute through the front sling and the rear sling.

2. A suspension conversion device for adjusting the landing posture of an airdropped object according to claim 1, characterized in that: The airdrop piece is elongated.

3. A suspension conversion device for adjusting the landing posture of an airdropped object according to claim 1, characterized in that: The suspension conversion device also includes a restraining device, and the middle part of the front sling is folded and arranged in the restraining device; a cutter is arranged on one side of the restraining device, and the cutter is used to release the restraining device and release the front sling.

4. A suspension conversion device for adjusting the landing posture of an airdropped object according to claim 1, characterized in that: The sling retracting device comprises two retracting rollers; Two retracting rollers are respectively arranged at the front hanging point and the rear hanging point, and the retracting rollers are connected to the retracting motor. One end of the front sling is wound around the retracting roller at the front hanging point, and the other end is connected to the parachute connection point. One end of the rear sling is wound around the retracting roller at the rear hanging point, and the other end is connected to the parachute connection point. A locking device is provided at the reeling roller; a sensor is provided on the reeling roller or the reeling motor, and a controller is respectively connected with the reeling motor, the locking device and the sensor.

5. A suspension conversion device for adjusting the landing posture of an airdropped object according to claim 4, characterized in that: The controller controls the release or retraction speed of the front sling by driving the retraction motor to drive the retraction roller. The sensor monitors the actual release or retraction length parameter or speed parameter of the sling and feeds back to the controller to adjust the release or retraction speed.

6. A suspension conversion device for adjusting the landing posture of an airdropped object according to claim 4, characterized in that: The locking device comprises brake pads located at both sides of the roller and a brake clamp connected to the brake pads, and the brake clamp is connected to the controller.

7. The hanging conversion device for adjusting the landing posture of an airdropped object according to claim 1 is characterized in that: The front hanging point, the rear hanging point, the left hanging point and the right hanging point are respectively fixed on the airdrop part by welding.

8. The hanging conversion device for adjusting the landing posture of an airdropped object according to claim 3 is characterized in that: The restraint device comprises a restraint sling; the restraint device cuts the restraint sling by a cutter, thereby releasing the restraint device and releasing the front sling.

9. The hanging conversion device for adjusting the landing posture of an airdropped object according to claim 1, characterized in that: The parachute comprises a plurality of parachute ropes, and a plurality of parachute rope connection points are evenly distributed along the circumferential direction of the bottom edge of the parachute canopy, one end of each parachute rope is connected to each parachute rope connection point respectively, and the other end of each parachute rope is gathered at one point and connected to a connecting belt, on which a parachute connection point is provided.

10. A method for adjusting the landing posture of an airdropped object using a hanging conversion device for adjusting the landing posture of an airdropped object, characterized in that: include: The airdrop component is initially suspended in a vertical state under a parachute for airdrop, and the parachute is opened after the airdrop, at which time the side straps are initially in a straightened state, and the front strap and the rear strap are initially in a free state; The length of the front sling is gradually released through the sling retracting device, and the length of the rear sling is contracted. After the front sling is released, the length of the rear sling is locked, and the airdrop piece is converted from a vertical state to a horizontal state, completing the hanging conversion. At this time, the front sling, rear sling and side sling are in a straightened state.

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