Deceleration parachute packing device and method

Abstract

The invention discloses a brake parachute packing device and method.The brake parachute packing device comprises a rack, a variable parachute cylinder and a thrust component, the thrust component is arranged on the rack, the movable end of the thrust component is connected with a pressing plate, the pressing plate is arranged above the variable parachute cylinder, and the thrust component drives the pressing plate to move up and down and is used for extruding a brake parachute in the variable parachute cylinder; the variable umbrella barrel comprises a top frame, a plurality of supporting rods evenly distributed in the circumferential direction of the top frame and a bottom separating and gathering component used for driving the supporting rods to gather or separate and open, the lower ends of the supporting rods are connected with the bottom separating and gathering component, and the upper ends of the supporting rods are connected with the top frame. The bottom separating and gathering part drives the supporting rods to move in the radial direction of the top frame. According to the invention, rapid packaging of the brake parachute and rapid adaptation of packaging of different parachute types are realized, the maintenance efficiency of ground crew is improved, and the device is especially suitable for packaging of drag parachutes.

Description

Technical Field

[0001] The present invention specifically relates to a deceleration parachute packing device and method. Background Art

[0002] A drag parachute is an umbrella-shaped tool used to reduce the aircraft's rolling speed during landing. Before installation and use, the drag parachute needs to be pressed into a parachute bag. Currently, this process is done manually, but it is difficult to compact the parachute relying solely on manpower. There is an urgent need for a drag parachute packaging tool to compact the drag parachute into the parachute bag. Summary of the invention

[0003] The purpose of the present invention is to provide a drag parachute packing device and method, so as to realize the rapid packing of the drag parachute and the rapid adaptation to the packing of different parachute types, improve the maintenance efficiency of ground crew, and is particularly suitable for the packing of drag parachutes.

[0004] The technical solution adopted by the present invention is: A deceleration parachute packing device comprises a frame, a variable parachute tube and a thrust component, wherein the thrust component is arranged on the frame, a movable end of the thrust component is connected with a pressing plate, the pressing plate is arranged above the variable parachute tube, and the thrust component drives the pressing plate to move up and down, so as to squeeze the deceleration parachute in the variable parachute tube; The variable umbrella tube includes a top frame, a plurality of support rods evenly distributed along the circumference of the top frame, and a bottom separation and gathering component used to drive the support rods to gather or separate and open. The lower ends of the support rods are connected to the bottom separation and gathering component, and the upper ends of the support rods are connected to the top frame; the bottom separation and gathering component drives the support rods to move radially along the top frame.

[0005] Preferably, the thrust component comprises a vertically arranged electric push rod, the movable end of which is connected to the pressing plate; Guide rods are arranged on both sides of the electric push rod, and the tops of the guide rods are connected to the pressing plates.

[0006] Preferably, a pressure sensor is provided between the pressure plate and the movable end of the thrust member.

[0007] Preferably, there are multiple top frames with different diameters. For packages with different umbrella-shaped sizes, top frames with different diameters are selected and placed on the support rods to accommodate packages with different umbrella-shaped sizes.

[0008] The top frame is in a circular ring shape, and a placing boss is arranged at the upper end of each supporting rod. The upper end of the supporting rod extends into the inner circle of the top frame, and the top frame is placed on the placing boss of each supporting rod.

[0009] Preferably, the number of support rods is 5 to 8.

[0010] Preferably, a crossbeam is provided on the frame, and both ends of the crossbeam are connected to the frame through a rotating pair. The thrust component can be flipped relative to the frame along with the crossbeam through the rotating pair, and rotated to a corresponding position for locking.

[0011] Preferably, the frame is a gantry.

[0012] Preferably, the bottom separation and gathering component includes a plurality of crank slider mechanisms and a driving unit, the number of the crank slider mechanisms is consistent with the number of the support rods, and they are configured one-to-one, and the driving unit is connected to the support rods through the crank slider mechanisms; The output end of the driving unit is connected to a rotating shaft, which is connected to the crank of the crank slider mechanism. The support rod is arranged on the slider of the crank slider mechanism. The slide rails of the crank slider mechanism are respectively arranged radially along the rotating shaft, and the slider can move back and forth along the corresponding slide rails.

[0013] Preferably, the bottom separation and gathering component further comprises a base, and the slide rails of each crank slider mechanism are arranged on the base at intervals along the circumference of the rotating shaft.

[0014] Preferably, a bottom plate is provided above the base, and the bottom plate is arranged above the base. A plurality of slide grooves are distributed on the bottom plate along the circumference of the rotating shaft, and the length direction of the slide grooves is arranged radially along the rotating shaft. The number of the slide grooves is the same as the number of the support rods and are arranged one by one. The slide grooves are arranged above the corresponding slide rails, and the lower ends of the support rods are arranged on the corresponding slide rails through sliders, and the upper ends of the support rods pass through the corresponding slide grooves.

[0015] A method for packaging a deceleration parachute using the deceleration parachute packing device as described above comprises the following steps: adjusting the diameter of a variable parachute tube by means of a bottom separation and gathering component to adapt to the corresponding parachute bag size; placing the parachute bag on the variable parachute tube and placing the deceleration parachute in the parachute bag; and a thrust component drives a pressure plate downward to compact the deceleration parachute in the parachute bag.

[0016] The beneficial effects of the present invention are: The present invention adjusts the diameter of the variable parachute tube through the bottom separation and gathering component to adapt to the corresponding parachute bag size, the parachute bag is put on the variable parachute tube, and the deceleration parachute is placed in the parachute bag; the thrust component drives the pressure plate to press down to compact the deceleration parachute in the parachute bag, thereby realizing rapid packaging of the deceleration parachute and rapid adaptation to the packaging of different parachute types, improving the maintenance efficiency of ground crew members, and is particularly suitable for the packaging of drag parachutes, and can meet the requirements for packaging of various types of drag parachutes, so that a larger drag parachute can be packaged and installed in a smaller drag parachute cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a deceleration parachute packing device in an embodiment of the present invention.

[0018] Figure 2It is a control flow chart of the deceleration parachute packing device in an embodiment of the present invention.

[0019] Figure 3 It is a schematic diagram of the principle of the deceleration parachute packing device in an embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the bottom separation and gathering component in an embodiment of the present invention.

[0021] Figure 5 yes Figure 1 BB view.

[0022] Figure 6 Schematic diagram of the structure of the thrust component in an embodiment of the present invention.

[0023] In the figure: 1-electric push rod; 2-guide rod; 3-pressure sensor; 4-gantry; 5-variable umbrella tube; 6-rotation pair; 7-speed reduction mechanism; 8-servo motor; 9-top frame; 10-screw nut mechanism; 5-1-support rod; 5-2-bottom plate; 5-3-base; 5-4-rotating shaft; 5-5-slider; 5-6-crank; 5-7-connecting rod; 5-8-slide rail; 5-9-slide groove; 5-10-motor reducer. DETAILED DESCRIPTION

[0024] 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.

[0025] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example 1 A deceleration parachute packing device, such as Figure 1 to Figure 6 As shown, it includes a frame, a variable umbrella tube 5 and a thrust component, the thrust component is arranged on the frame, the movable end of the thrust component is connected with a pressing plate, the pressing plate is arranged above the variable umbrella tube 5, and the thrust component drives the pressing plate to move up and down, so as to squeeze the deceleration parachute in the umbrella bag sleeved in the variable umbrella tube 5; The variable umbrella tube 5 includes a top frame 9, a plurality of support rods 5-1 evenly distributed along the circumference of the top frame 9, and a bottom separation and gathering component for driving each support rod 5-1 to gather or separate and open. The lower end of the support rod 5-1 is connected to the bottom separation and gathering component, and the upper end of each support rod 5-1 is connected to the top frame 9; the bottom separation and gathering component drives each support rod 5-1 to move radially along the top frame 9.

[0028] Furthermore, the thrust component comprises a vertically arranged electric push rod 1, the movable end of which is connected to the pressing plate; Guide rods 2 are provided on both sides of the electric push rod 1, and the tops of the guide rods 2 are connected to the pressing plates.

[0029] In a specific embodiment, there are other options for the thrust component, and the thrust component includes a hydraulic cylinder or a pneumatic cylinder.

[0030] Furthermore, a pressure sensor 3 is provided between the pressure plate and the movable end of the thrust member.

[0031] Furthermore, there are multiple top frames 9 with different diameters. For packages of different umbrella sizes, top frames of different diameters are selected and placed on the support rods to accommodate different sizes of drag parachutes and parachute packs. When the diameter of the variable umbrella tube 5 needs to be adjusted, the top frame 9 is first removed, and the radial position of each support rod 5-1 is adjusted through the bottom separation and gathering parts to adapt to the new parachute pack size, and then a top frame 9 of the appropriate size is taken and placed on the upper end of each support rod 5-1.

[0032] The top frame 9 is in a circular shape, and a placing boss is provided at the upper end of each support rod 5 - 1 . The upper end of the support rod 5 - 1 extends into the inner circle of the top frame 9 , and the top frame 9 is placed on the placing boss of each support rod 5 - 1 .

[0033] Furthermore, the number of the support rods 5 - 1 is 5 to 8.

[0034] In the specific optimal embodiment, the number of support rods 5-1 is 6, and the 6 support rods 5-1 are evenly distributed along the circumferential direction. The variable umbrella tube 5 is designed as a hexagonal umbrella tube with a variable size, and the diameter of the umbrella bag is constrained by the circumscribed circle of the hexagon. The control process is as follows: Figure 2 .

[0035] Furthermore, a crossbeam is provided on the frame, and both ends of the crossbeam are connected to the frame through a rotating pair 6. The thrust component can be flipped relative to the frame through the rotating pair 6 along with the crossbeam, and rotated to a corresponding position for locking (this locking method can be locked by bolts); the thrust component is rotated to be vertically downward and located above the crossbeam as a working state position, and the thrust component is rotated to be vertically upward and located below the crossbeam, so that the thrust component is hidden in the variable umbrella tube 5 as a folded state position for easy transportation.

[0036] Furthermore, the frame is a gantry 4 ; the crossbeam of the gantry 4 can be used as a rotatable crossbeam with a rotating pair 6 .

[0037] Example 2 On the basis of Example 1, the bottom separation and gathering components are further limited, and the performance of Example 2 after the limitation is better.

[0038] The bottom separation and gathering component includes a plurality of crank slider mechanisms and a driving unit. The number of the crank slider mechanisms is consistent with the number of the support rods 5-1 and is configured one-to-one. The driving unit is connected to the support rods 5-1 through the crank slider mechanisms. The output end of the driving unit is connected to a rotating shaft 5-4, which is connected to the crank of the crank slider mechanism. The rotating shaft 5-4 is arranged at the center of the top frame 9, and the support rod 5-1 is arranged on the slider of the crank slider mechanism. The slide rails of the crank slider mechanism are respectively arranged radially along the rotating shaft 5-4, and the slider can move back and forth along the corresponding slide rails; the driving unit drives the crank to rotate through the rotating shaft 5-4, and then the crank drives the slider to move back and forth radially along the rotating shaft 5-4, thereby driving each support rod 5-1 to move back and forth radially along the rotating shaft 5-4, forming the separation or gathering of each support rod 5-1.

[0039] The crank slider mechanism includes a crank, a connecting rod, a slider and a slide rail. One end of the crank is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the slider. The slider is set on the slide rail, and the crank drives the slider to move on the slide rail through the connecting rod; the support rod is set on the slider, and the crank is connected to the rotating shaft.

[0040] Furthermore, the driving unit includes a motor reducer, and an output end of the motor reducer is connected to the rotating shaft 5 - 4 .

[0041] Furthermore, the bottom separation and gathering component also includes a base 5-3, and the slide rails of each crank slider mechanism are arranged on the base 5-3 at intervals along the circumferential direction of the rotating shaft 5-4.

[0042] Furthermore, a bottom plate 5-2 is provided above the base 5-3, and the bottom plate 5-2 is arranged above the base 5-3. A plurality of slide grooves are distributed on the bottom plate 5-2 along the circumference of the rotating shaft 5-4, and the length direction of the slide grooves is arranged radially along the rotating shaft 5-4. The number of the slide grooves is the same as the number of the support rods 5-1, and are arranged one by one. The slide grooves are arranged above the corresponding slide rails, and the lower ends of the support rods 5-1 are arranged on the corresponding slide rails through sliders, and the upper ends of the support rods 5-1 pass through the corresponding slide grooves.

[0043] Furthermore, moving wheels are provided at the bottom of the base 5-3.

[0044] A method for packaging a deceleration parachute using the deceleration parachute packing device as described above includes the following steps: adjusting the diameter of the variable umbrella tube 5 by means of the bottom separation and gathering component to adapt to the corresponding umbrella bag size; putting the umbrella bag on the variable umbrella tube 5 and placing the deceleration parachute in the umbrella bag; and the thrust component drives the pressure plate to press down to compact the deceleration parachute in the umbrella bag.

[0045] Working principle of the present invention: The internal composition of the system is shown in the figure Figure 1 , where the electric push rod 1 is installed as an actuator just above the gantry 4 to provide downward pressure on the umbrella. The gantry 4 is the main load-bearing structure, and its main load is the upward reaction force perpendicular to the ground at the center of the beam; the guide rod 2 is an auxiliary load-bearing structure. Since the electric push rod 1 cannot withstand radial force, guide rods are installed on both sides of the electric push rod 1 to offset the radial force; the variable umbrella tube 5 is designed as a hexagonal umbrella tube with variable size, and the diameter of the umbrella bag is constrained by the circumscribed circle of the hexagon. The control process is as follows Figure 2 .

[0046] The electric push rod 1 is composed of a servo motor 8, a speed reduction mechanism 7 and a screw nut mechanism 10. The servo motor 8 is connected to the screw nut mechanism 10 through the speed reduction mechanism 7. The structure is as follows: Figure 6 The servo motor is driven by a driver and inputs a voltage of 220V 50Hz. The output speed of the motor is decelerated by the reducer, and then drives the screw nut to move, and the screw nut mechanism 10 converts the rotary motion into linear motion; the structure is simple, the umbrella tube structure is universal and reliable, and the flexible design can adapt to the umbrella wrapping requirements of cylindrical umbrella tubes of different sizes. The actuating mechanism adopts a screw nut mechanism, which uses electric power as the power source and is easy to use and maintain.

[0047] The electric push rod 1 motor is the power source. The PLC programmable controller sends instructions to the motor driver to control the movement of the servo motor. The pressure sensor 3 inputs a feedback signal to the system. The speed of the motor is controlled according to the feedback pressure, and the motor is stopped when the upper pressure limit is reached to avoid damaging the mechanical structure or causing motor overload.

[0048] Umbrella tube change principle: The main supporting structure of the umbrella tube is Figure 1 The six support rods 5-1 in the middle, the geometric position of the projection plane of these six support rods 5-1 in the vertical direction is always a regular hexagon. The umbrella tube can be divided into three layers: the bottom layer is the worm gear reducer, the middle layer is six groups of crank slider mechanisms, and the top layer is six support rods 5-1; the structure of the umbrella tube can be simplified to six groups of centrosymmetric crank slider mechanisms (see Figure 3 ), the whole mechanism has a degree of freedom of 1. The worm gear reducer drives the rotation of the crank, and the slider is rigidly connected to the bottom of the support rod 5-1. As long as the worm gear reducer at the bottom is controlled to rotate, the spacing between the six support rods 5-1 can be changed to control the size change of the umbrella tube.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] 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 deceleration parachute packing device, characterized in that: It includes a frame, a variable umbrella tube and a thrust component, wherein the thrust component is arranged on the frame, a movable end of the thrust component is connected with a pressing plate, the pressing plate is arranged above the variable umbrella tube, and the thrust component drives the pressing plate to move up and down, so as to squeeze the deceleration parachute in the variable umbrella tube; The variable umbrella tube includes a top frame, a plurality of support rods evenly distributed along the circumference of the top frame, and a bottom separation and gathering component for driving the support rods to gather or separate and open. The lower ends of the support rods are connected to the bottom separation and gathering component, and the bottom separation and gathering component can drive the support rods to move radially along the top frame. The upper ends of the support rods are connected to the top frame.

2. The deceleration parachute packing device according to claim 1, characterized in that: The thrust component comprises a vertically arranged electric push rod, the movable end of which is connected to the pressing plate; Guide rods are arranged on both sides of the electric push rod, and the tops of the guide rods are connected to the pressing plates.

3. The deceleration parachute packing device according to claim 1, characterized in that: A pressure sensor is provided between the pressure plate and the movable end of the thrust component.

4. The deceleration parachute packing device according to claim 1, characterized in that: There are multiple top frames with different diameters. For packages with different umbrella-shaped sizes, top frames with different diameters are selected and placed on the support rods to adapt to packages with different umbrella-shaped sizes.

5. The deceleration parachute packing device according to claim 1, characterized in that: The top frame is in the shape of a circular ring, and a placing boss is arranged at the upper end of each supporting rod, and the top frame is placed on the placing boss of each supporting rod.

6. The deceleration parachute packing device according to claim 1, characterized in that: A crossbeam is arranged on the frame, and both ends of the crossbeam are connected to the frame through a rotating pair. The thrust component can be turned relative to the frame through the rotating pair along with the crossbeam, and rotated to a corresponding position for locking.

7. The deceleration parachute packing device according to claim 1, characterized in that: The bottom separation and gathering component includes a plurality of crank slider mechanisms and a driving unit. The number of the crank slider mechanisms is consistent with the number of the support rods and is configured one by one. The driving unit is connected to the support rods through the crank slider mechanisms. The output end of the driving unit is connected to a rotating shaft, which is connected to the crank of the crank slider mechanism. The support rod is arranged on the slider of the crank slider mechanism. The slide rails of the crank slider mechanism are respectively arranged radially along the rotating shaft, and the slider can move back and forth along the corresponding slide rails.

8. The deceleration parachute packing device according to claim 7, characterized in that: The bottom separation and gathering component also includes a base, and the slide rails of each crank slider mechanism are arranged on the base at intervals along the circumference of the rotating shaft.

9. The deceleration parachute packing device according to claim 8, characterized in that: A bottom plate is provided above the base, and the bottom plate is arranged above the base. A plurality of slide grooves are distributed on the bottom plate along the circumference of the rotating shaft. The length direction of the slide grooves is arranged radially along the rotating shaft. The number of the slide grooves is the same as the number of the support rods and are arranged one by one. The slide grooves are arranged above the corresponding slide rails, and the lower ends of the support rods are arranged on the corresponding slide rails through sliders, and the upper ends of the support rods pass through the corresponding slide grooves.

10. A method for packing a deceleration parachute using the deceleration parachute packing device according to claim 1, characterized in that: The following steps are involved: The diameter of the variable umbrella tube is adjusted by the bottom separation and gathering parts to adapt to the corresponding umbrella bag size; the umbrella bag is put on the variable umbrella tube, and the deceleration parachute is placed in the umbrella bag; the thrust component drives the pressure plate to press down to compact the deceleration parachute in the umbrella bag.

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