CN105501452B - A kind of helicopter goods hooking device and its method and control method - Google Patents
A kind of helicopter goods hooking device and its method and control method Download PDFInfo
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- CN105501452B CN105501452B CN201510929154.3A CN201510929154A CN105501452B CN 105501452 B CN105501452 B CN 105501452B CN 201510929154 A CN201510929154 A CN 201510929154A CN 105501452 B CN105501452 B CN 105501452B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 238000005303 weighing Methods 0.000 claims abstract description 30
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 230000009471 action Effects 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims 2
- 239000000806 elastomer Substances 0.000 claims 2
- 238000012360 testing method Methods 0.000 abstract description 15
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000005483 Hooke's law Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012429 release testing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
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Abstract
The invention discloses a kind of helicopter goods hooking device and its method and control method, the device includes hanging monitoring box, hanging release device and hoist cable；Hanging monitoring box control hanging release device realizes Under-Slung Loads, monitoring goods and release goods, and hoist cable is connected to direct Suspended Cargo with hanging release device；Described hanging release device includes hanging relieving mechanism, controls to hang normal electromagnetic releasing controller and the emergent release control device of the emergent cartridge discharged of control hanging relieving mechanism that relieving mechanism normally discharges, and hanging relieving mechanism includes the hook for being used to hang hoist cable or goods.There is Under-Slung Loads, monitoring goods, release goods and the function of weighing goods weight simultaneously, small volume, lightweight, monitoring, test, easy to operate, reliability, safe, good environmental adaptability, anti-electromagnetic interference capability is strong.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the field of external hanging transportation of helicopters, and particularly relates to a cargo hook device for a helicopter, a method and a control method thereof.
[ background of the invention ]
The external hanging system is applied and developed in foreign markets, and with the application and development of heavy helicopters in the vietnam war as early as the end of the sixties and the beginning of the seventies, the hanging transportation of the helicopters plays an increasingly important role in the war operation. The research of domestic hanging flight starts in the last 80 th century, and at present, the research and the application of the products are in the early stage, and no mature products exist.
Along with the application of the helicopter hanging transportation in the tactics in war and the continuous development of the field of the helicopter hanging transportation in various civil economic construction projects, the helicopter hanging transportation system has the advantages that the loading volume of the helicopter and the matching between the helicopter and the appearance of goods do not need to be considered, the helicopter hanging transportation system is not limited by traffic conditions and geographical conditions, and the like, so that people can be more and more aware of the following: the helicopter is used for hanging and transporting large-volume goods with flexible maneuverability, and plays an increasingly important role in various fields.
The forward functions of airborne cargo transportation are diversified, embodied and agilely developed, the existing cargo hook device for the helicopter is very urgent in tactics and civil economic construction, and the development and application of the product can promote the development of the field of domestic helicopter hanging transportation.
[ summary of the invention ]
The invention aims to provide a cargo hook device for a helicopter, a method and a control method thereof.
In order to achieve the purpose, the invention adopts the following technical means:
a cargo hook device for a helicopter comprises a hanging monitoring box, a hanging releasing device and a sling; the suspension monitoring box controls the suspension release device to realize the suspension, monitoring and release of goods, and the sling is connected with the suspension release device and is used for directly suspending the goods; the hanging release device comprises a hanging release mechanism, a normal electromagnetic release controller for controlling the hanging release mechanism to release normally and a projectile throwing emergency release controller for controlling the hanging release mechanism to release emergently, and the hanging release mechanism comprises a hook for hanging a sling or goods.
As a further improvement of the invention, the hanging release mechanism also comprises a self-transmission rod, a hanging plate and a rocker which are all hinged on the shell; the hook is hinged on the shell through a hook shaft, one end of the hook is a hook-shaped part which extends out of the shell and is used for hanging goods, and the other end of the hook is a hook shifting sheet; one end of the self-transmission rod is provided with a blocking piece, the other end of the self-transmission rod is provided with a self-transmission rod shifting piece, an arc-shaped groove on the blocking piece is contacted with the hook shifting piece, and the self-transmission rod and the hook are mutually driven to rotate around the corresponding shaft under the action of external force; the self-transmission rod shifting piece is contacted with the roller on one side of the hanging plate, and the self-transmission rod and the hanging plate are mutually driven to rotate around the corresponding shaft under the action of external force; a pin for preventing the hanging plate from rotating anticlockwise is arranged on one side of the hanging plate close to the self-transmission rod; one end of the rocker is hinged with the other side of the hanging plate, and the hanging plate and the rocker are mutually driven to rotate around the corresponding shafts under the action of external force; the normal electromagnetic release controller and the projectile throwing emergency release controller both control the rocker to rotate.
As a further improvement of the invention, the hanging plate is in an equilateral triangle structure, the top angle of the hanging plate is hinged on the shell through a hanging plate shaft, one bottom angle is provided with a roller, and the other bottom angle is hinged with the rocker.
As a further improvement of the invention, the hook is in a crescent structure, the hook is hinged on the shell through a hook shaft, and the hook part of the hook generates anticlockwise torque when the goods are hung.
As a further improvement of the invention, the self-transmission rod is hinged on the shell through the self-transmission rod shaft, and a convex body for preventing the hook shifting piece from sliding out of the arc-shaped groove is also arranged on the baffle; the self-transmission rod shifting piece of the self-transmission rod is of a hook-shaped structure formed by two arc-shaped structures with different sizes, and the roller is arranged in the hook-shaped structure.
As a further improvement of the invention, the hanging release mechanism is also provided with a safety buckle matched with the hook; the hanging release mechanism is also provided with a manual mechanism release lever.
As a further improvement of the invention, the hanging and releasing device also comprises a weighing sensor used for weighing the weight of the goods, an elastic body of the weighing sensor and a rear bearing beam of the hook are of an integrated structure, a plurality of strain gauge sensitive grids adhered to different parts of the elastic body form a Wheatstone bridge, the Wheatstone bridge outputs a voltage signal which is in linear relation with the weight of the goods, and the voltage signal is output after first-stage amplification and second-stage low-pass filtering by a weighing signal conditioner to output the hanging weight.
As a further improvement of the invention, the sling comprises a hanging ring used for being hung on the hook, a lifting rope used for connecting the hanging ring and the lifting hook, and a lifting hook used for directly hanging the goods, wherein the lifting hook is also provided with a spring fastener which can enable the goods to enter the lifting hook and can prevent the goods from sliding out.
As a further improvement of the invention, the hanging monitoring box is provided with an indicator light area, a projectile emergency release testing area and a release button area; the release button area comprises a projectile emergency release and a normal electromagnetic release button.
A use method of a cargo hook device for a helicopter comprises the following steps:
when goods are hung on the hook, under the action of the gravity of the goods, counterclockwise torque is generated, the hook transmits the first torque to the self-transmission rod to generate clockwise second torque, the self-transmission rod transmits the second torque to the hanging plate to generate counterclockwise third torque, the pin generates clockwise fourth torque to the hanging plate, the magnitude of the fourth torque is equal to that of the third torque, the direction of the fourth torque is opposite to that of the third torque, and the hanging plate is in a balanced state; meanwhile, the hanger plate transmits a counterclockwise fifth torque to the self-transmission rod, the fifth torque is equal to the second torque in magnitude and opposite in direction, and the self-transmission rod is in a balanced state; a sixth clockwise torque is transmitted from the transmission rod to the hook, the sixth torque is equal to the first torque in magnitude and opposite in direction, and the hook is in a balanced state;
when the hung goods need to be released, the release mechanism drives the rocker, a seventh torque is generated, the seventh torque is transmitted to the hanging plate under the action of the mechanism, a clockwise eighth torque is generated, the hanging plate can rotate clockwise around a hanging plate shaft under the action of the eighth torque, after the roller rolls out of the transmission rod, the fifth torque disappears, the self-transmission rod rotates clockwise around the self-transmission rod shaft under the action of the second torque, the sixth torque also disappears, the hook rotates anticlockwise around the hook shaft under the action of the first torque, and the hung goods are released.
A control method of a cargo hook device for a helicopter comprises three release modes, namely ground manual release, normal electromagnetic release and emergency release; wherein,
the normal electromagnetic release comprises the following specific steps: the normal electromagnetic release button is pressed, the normal electromagnetic release controller drives the rocker to rotate, the hook opening indicating switch is switched on, the hook opening indicating lamp is on, the normal electromagnetic release power supply cut-off switch is switched on, the hanging plate assembly rotates to drive the self-transmission rod to rotate, the hook is opened, and the goods are released; the hook is reset, the self-transmission rod is reset, the hanging plate assembly is reset, the rocker is reset, and the hook turn-on indicator lamp is turned off;
the emergency release comprises projectile emergency release and manual emergency release; the specific steps of the throwing and releasing bomb emergency release are as follows: the projectile releasing emergency release button is pressed, the projectile releasing emergency release controller is pressed to work, the rocker is driven to rotate, the hook opening indicating switch is switched on, the hook opening indicating lamp is on, the hanging plate assembly rotates to drive the self-transmission rod to rotate, the hook is opened, and cargoes are released; replacing the projectile throwing emergency release controller, resetting the hook, resetting the self-transmission rod, resetting the hanging plate assembly, resetting the rocker, and turning on the hook to turn off the indicator light;
the manual emergency release step is as follows: the safety buckle of the goods hook is opened, the manual operating rod is moved, the rocker rotates, the hook opening indicating switch is switched on, the hook opening indicating lamp is on, the hanging plate assembly rotates, the self-transmission rod rotates, the hook is opened, and the goods are released; replacing the projectile throwing emergency release controller, resetting the hook, resetting the self-transmission rod, resetting the hanging plate assembly, resetting the rocker, and turning on the hook to turn off the indicator light;
the ground manual release step specifically comprises the following steps: the manual operating rod is moved, the rocker assembly rotates, the automatic transmission rod rotates, the hook is opened, and the goods are released; the couple resets, and the biography pole resets, and the hanger plate subassembly resets, and the rocker resets, and the couple is opened the pilot lamp and is gone out.
Compared with the prior art, the invention has the following beneficial technical effects:
the cargo hook device of the invention consists of a hanging monitoring box, a cargo hook and a sling. The cargo hook comprises a hanging release mechanism, a normal electromagnetic release controller, a projectile throwing emergency release controller, a weighing sensor and a weighing signal conditioner. The integrated level is high, powerful, small, light in weight, convenient in monitoring, testing and operation, high in reliability and safety, good in environmental adaptability and strong in anti-electromagnetic interference capability.
Furthermore, the safety catch is used as a locking mechanism in the hanging and releasing mechanism, so that the goods can be reliably kept, and the accidental releasing condition of the goods can not occur in the transportation process.
Furthermore, the manual mechanism release lever can be used for opening the locking mechanism to release the hung goods. The normal electromagnetic release controller and the projectile throwing emergency release controller can be used for unlocking the locking mechanism and releasing the suspended cargoes. A mechanical release mode and two quick release modes ensure reliable and effective release of hung goods.
Furthermore, the hanging monitoring box can be used for fusing multi-channel control signals to monitor, control and test the cargo hook.
Furthermore, the weight of the goods can be weighed by using the weighing sensor and the weighing signal conditioner, and a weight signal is output.
Furthermore, the sling is used for facilitating the operator to hang and unload the goods, and the goods are prevented from colliding with the helicopter when swinging in the flying process.
The using method of the invention has simple operation and convenient use, and ensures the balance when hanging goods and the accuracy of releasing goods by the torque and lever principle.
The control method comprises three release modes of ground manual release, normal electromagnetic release and emergency release, daily automatic release is achieved through electromagnetic control, emergency release in a projectile throwing mode is achieved, and cargoes are manually released through operation of a ground manual lever. Accurate control and quick response, and effectively solves the occurrence of various unexpected conditions.
[ description of the drawings ]
FIG. 1 is a schematic view of a hanger release;
FIG. 2 is an internal view of the hanging release device;
FIG. 3 is a schematic diagram of a hanging release mechanism; the dotted line position in the figure is the position of each mechanism after release;
FIG. 4 is a schematic view of a load cell of the present invention;
FIG. 5 is a schematic view of a sling according to the present invention;
FIG. 6 is a schematic view of a hanging monitoring box according to the present invention;
FIG. 7 is a schematic view of a load cell of the present invention;
FIG. 8 is a block diagram of the operating principles of the weighing system of the present invention;
fig. 9 is a block diagram of the release operation of the present invention.
Wherein, 1 is a hook, 2 is a hanging release mechanism, 3 is a weighing sensor, 4 is a weighing signal conditioner, 5 is a projectile throwing emergency release controller, 6 is a normal release controller, 7 is a safety buckle, 8 is a sling, 9 is a hanging monitoring box, 1-1 is a hook shaft, 1-2 is a self-transmission shaft, 1-3 is a self-transmission rod, 1-4 rollers, 1-5 is a lock pin, 1-6 is a sling shaft, 1-7 is a sling plate, 1-8 is a rocker, and 1-9 is a fourth shaft; 1-10 are hook-shaped parts; 1-11 are hook plectrum; 1-12 are blocking sheets; 1-13 are convex bodies; 1-14 are self-transmission rod shifting pieces; 3-1 is a weighing sensor body; 3-2 is called a conduit; 8-1 is a hanging ring, 8-2 is a lifting rope, and 8-3 is a lifting hook; 9-1 is an indicator light area; 9-2 is a projectile throwing emergency release test area; 9-3 is a release button; a. b, c, d, e, f, g, h are torques.
[ detailed description ] embodiments
The invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the invention to the following examples.
A cargo hook device for a helicopter comprises a hanging monitoring box 9, a hanging releasing device and a sling 8. The hanging and releasing device shown in fig. 2 comprises a hanging and releasing mechanism 2, a normal electromagnetic release controller 6, a projectile throwing emergency release controller 5, a weighing sensor 3, a weighing signal conditioner 4 and a hook 1. The invention can realize goods hanging, goods monitoring, goods releasing and goods weight weighing.
As shown in fig. 1, the hanging release mechanism 2 is designed with a hook 1 and a safety catch 7, and under normal conditions, the hook 1 is in a locked state, and only a hanging ring 8-1 of a sling 8 needs to be hung on the hook 1, and under the protection of the safety catch 7, the sling 8 can be ensured not to fall off the hook 1;
as shown in fig. 3, the hanging release mechanism 2 comprises a hook 1, a self-transmission rod 1-3, a hanging plate 1-7 and a rocker 1-8 which are all hinged on the shell; the hook 1 is hinged on the shell through a hook shaft 1-1, one end of the hook 1 is a hook-shaped part 1-10 which extends out of the shell and is used for hanging goods, and the other end of the hook 1 is a hook shifting sheet 1-11; the hook 1 is in a crescent structure, the hook 1 is hinged on the shell through a hook shaft 1-1, and the hook part of the hook 1 generates anticlockwise torque when goods are hung. One end of the self-transmission rod 1-3 is provided with a baffle plate 1-12, the other end is provided with a self-transmission rod shifting piece 1-14, an arc-shaped groove on the baffle plate 1-12 is contacted with the hook shifting piece 1-11, and the self-transmission rod 1-3 and the hook 1 are mutually driven to rotate around the corresponding shaft under the action of external force; the self-transmission rod 1-3 is hinged on the shell through a self-transmission rod shaft 1-2, and the blocking piece 1-12 is also provided with a convex body 1-13 for preventing the hook shifting piece 1-11 from sliding out of the arc-shaped groove; the self-transmission rod shifting piece 1-14 of the self-transmission rod 1-3 is of a hook-shaped structure formed by two arc-shaped structures with different sizes, and the roller 1-4 is arranged in the hook-shaped structure. The self-transmission rod shifting sheet 1-14 is contacted with the roller 1-4 at one side of the hanging plate 1-7, the hanging plate 1-7 is in an equilateral triangle structure, the vertex angle of the hanging plate is hinged on the shell through the hanging plate shaft 1-6, the roller 1-4 is arranged on one bottom angle, and the other bottom angle is hinged with the rocker 1-8. The self-transmission rod 1-3 and the hanging plate 1-7 are mutually driven to rotate around the corresponding shaft under the action of external force; one end of the rocker 1-8 is hinged with the other side of the hanging plate 1-7, and the hanging plate 1-7 and the rocker 1-8 are mutually driven to rotate around the corresponding shaft under the action of external force; the normal electromagnetic release controller 6 and the projectile throwing emergency release controller 5 both control the rocker arms 1-8 to rotate.
The hanging release mechanism 2 is also provided with a safety catch 7 matched with the hook 1; the hanging release mechanism 2 is also provided with a manual mechanism release lever.
The working principle of the hanging release mechanism 2 is as follows: when goods are hung on the hook 1, under the action of the gravity of the goods, an anticlockwise torque a is generated, the hook 1 transmits the torque a to the self-transmission rod 1-3 to generate a clockwise torque b, the self-transmission rod 1-3 transmits the torque b to the hanging plate 1-7 to generate an anticlockwise torque c, at the moment, the pin 1-5 generates a clockwise torque d to the hanging plate 1-7, under the condition of ensuring the structural strength, the torque d is equal to the torque c in size and opposite in direction, and the hanging plate 1-7 is in a balanced state; meanwhile, the hanger plate 1-7 transmits counterclockwise torque e to the self-transmission rod 1-3, the torque e is equal to the torque b in magnitude and opposite in direction, and the self-transmission rod 1-3 is in a balanced state; similarly, clockwise torque f is transmitted from the transmission rods 1-7 to the hook 1, the torque f is equal to the torque a in magnitude and opposite in direction, and the hook 1 is in a balanced state. Therefore, the hanging and releasing mechanism is in a balanced locking state, the goods can be reliably kept, and the accidental releasing condition of the goods can not occur in the transportation process.
When the hung goods need to be released, the rocker 1-8 is driven to generate a torque g, the torque g is transmitted to the hanging plate 1-7 under the action of the mechanism to generate a clockwise torque h, the hanging plate can rotate clockwise around the hanging plate shaft 1-6 under the action of the torque h, after the roller 1-4 rolls out of the self-transmission rod 1-3, the torque e disappears, the self-transmission rod 1-3 rotates clockwise around the self-transmission rod shaft 1-2 under the action of the torque b to enable the torque f to disappear, the hook 1 rotates anticlockwise around the hook shaft 1-1 under the action of the torque a, and at the moment, the hung goods are reliably and effectively released.
Furthermore, the invention can realize the weighing of the weight of the hung goods without changing the original structure of the goods hook and adding new parts.
Specifically, as shown in fig. 4, the elastic body of the weighing sensor body 3-1 is a rear bearing beam of the cargo hook 1, namely, the elastic body and the cargo hook 1 are designed in an integrated manner, so that when the cargo hook hangs a cargo, weighing can be realized, the structure is compact, and the weighing sensor is safe and reliable;
the working principle is as shown in fig. 7 and 8, after goods are hung on the hook 1 of the goods hook, the weight of the goods is transferred to the rear bearing beam, namely the weighing sensor 3, so that the elastic body of the weighing sensor 3 generates tensile and compressive strain, four strain gauge sensitive grids adhered to different parts of the elastic body form a Wheatstone bridge, and the Wheatstone bridge outputs a voltage signal which is in linear relation with the weight of the goods, so that the weight of the hung goods can be measured.
As shown in FIG. 5, the sling 8 comprises a hanging ring 8-1, a hanging rope 8-2 and a hanging hook 8-3, wherein the hanging ring 8-1 is used for hanging the hook 1, and the hanging hook 8-3 is used for hanging goods. The lifting hook 8-3 is also provided with a spring fastener which can enable goods to enter the lifting hook and can prevent the goods from sliding out.
As shown in FIG. 6, the panel of the hanging monitoring box 9 of the invention is provided with an indicator light area 9-1, a projectile emergency release test area 9-2 and a release button area 9-3. Indicator light area 9-1 includes a power indication and a hook on indication. The projectile emergency release test area 9-2 comprises a test instruction, a short circuit and a normal switch. The release button area 9-3 includes a projectile emergency release and normal electromagnetic release buttons.
As shown in fig. 9, it is a functional block diagram of the release operation of the present invention, which includes three release modes, i.e., ground manual release, normal electromagnetic release and emergency release; wherein,
normal electromagnetic release includes that self-checking tests and normal work are two kinds, and concrete step is: the normal electromagnetic release button is pressed to order the normal electromagnetic release controller 6 to work, the rocking bars 1-8 rotate, the hook opening indicating switch is switched on, the hook opening indicating lamp is on, the normal electromagnetic release power supply cut-off switch is switched on, the hanging plate 1-7 components rotate, the self-transmission rods 1-3 rotate, the hook 1 is opened, goods are released, the hook 1 resets, the self-transmission rods 1-3 reset, the hanging plate 1-7 components reset, the rocking bars 1-8 reset, and the hook opening indicating lamp goes out.
The emergency release comprises projectile emergency release and manual emergency release; the emergent release of throwing bomb includes that self-checking tests and normal work are two kinds, and the self-checking test of the emergent release of throwing bomb includes short circuit and open circuit two kinds, and concrete step is: pressing down a projectile throwing emergency release button, and lighting a test lamp; the normal working steps of the projectile throwing emergency release include that a projectile throwing emergency release button is pressed down, a projectile throwing emergency release controller 5 is pressed down to work, a rocker 1-8 rotates, a hook opening indicating switch is switched on, a hook opening indicating lamp is on, a hanging plate 1-7 assembly rotates, a self-transmission rod 1-3 rotates, a hook 1 is opened, goods are released, the projectile throwing emergency release controller is replaced, the hook 1 resets, the self-transmission rod 1-3 resets, the hanging plate 1-7 assembly resets, the rocker 1-8 resets, and a hook opening indicating lamp goes out.
The manual emergency release step is as follows: opening a cargo hook cover plate, moving a manual operating rod, rotating a rocker 1-8, switching on a hook opening indicating switch, lighting a hook opening indicating lamp, rotating a hanging plate 1-7 assembly, rotating a self-transmission rod 1-3, opening the hook 1, releasing the cargo, replacing a projectile throwing emergency release controller, resetting the hook 1, resetting the self-transmission rod 1-3, resetting the hanging plate 1-7 assembly, resetting the rocker 1-8 and extinguishing the hook opening indicating lamp.
The ground manual release comprises self test and normal work, a manual operating rod is moved, rocker bars 1-8 rotate, a hook opening indicating switch is switched on, a hook opening indicating lamp is on, hanging plates 1-7 rotate, a self-transmission rod 1-3 rotates, a hook 1 is opened, goods are released, the hook 1 resets, the self-transmission rod 1-3 resets, the hanging plates 1-7 reset, the rocker bars 1-8 reset, and the hook opening indicating lamp goes out.
The working principle of the invention is explained in steps as follows:
1. hanging goods
When the self-transmission rod 7 in the hanging release mechanism is in a locked state, the hook 1 is also locked. The lifting hook 8-3 in the sling 8 is used for hooking the goods, and the lifting ring 8-1 in the sling 8 is hung on the hook 1 of the hanging release mechanism, so that the reliable hanging of the goods is realized.
2. Monitoring goods
Hang monitoring box 9 and can monitor the locking state of couple 1 constantly to show on the panel, send locking state signal for the helicopter simultaneously, realize the supervision to the goods.
When the release is controlled to needs, press the normal electromagnetic release button or throw the emergent release button of bullet on hanging control box 9 or hang control box and receive the helicopter and send out the signal when, hang control box 9 and send and correspond the release signal, and the couple locking signal and the rotary electromagnet outage signal of receiving goods couple feedback, 0.5s back outage prevents that the rotary electromagnet from overheating and burning out, realizes the control to the goods.
3. Releasing the goods
In order to ensure reliable and effective release of the hung goods, the invention has three release modes of manual mechanical release, normal electromagnetic release and projectile emergency release, and in order to prevent release failure, the invention also has a test system, and the specific release work and test are shown in figure 8.
4. Weighing goods
After the goods are hung, the hook of the hanging and releasing mechanism is stressed, the force is transmitted to the weighing sensor 3 which is integrally designed, the resistance change of the strain gauge which is pasted on the elastic body in the weighing sensor 3 is converted into a millivolt-level voltage signal by utilizing the Hooke's law and the Wheatstone bridge test principle, and the millivolt-level voltage signal is output after the first-level amplification and the second-level low-pass filtering of the weighing signal conditioner 4, so that the weight of the hanging is weighed.
Claims (9)
1. A cargo hook device for a helicopter is characterized by comprising a hanging monitoring box (9), a hanging releasing device and a sling (8); the hanging monitoring box (9) controls the hanging releasing device to realize goods hanging, monitoring and releasing, and the sling (8) is connected with the hanging releasing device and is used for directly hanging goods; the hanging release device comprises a hanging release mechanism (2), a normal electromagnetic release controller (6) for controlling the normal release of the hanging release mechanism (2) and a projectile emergency release controller (5) for controlling the emergency release of the hanging release mechanism (2), wherein the hanging release mechanism (2) comprises a hook (1) for hanging a sling (8) or goods;
the hanging release mechanism (2) also comprises a self-transmission rod (1-3), a hanging plate (1-7) and a rocker (1-8) which are all hinged on the shell; the hook (1) is hinged on the shell, one end of the hook (1) is a hook-shaped part (1-10) which extends out of the shell and is used for hanging goods, and the other end of the hook (1-11) is a hook shifting sheet; one end of the self-transmission rod (1-3) is provided with a blocking piece (1-12), the other end of the self-transmission rod is provided with a self-transmission rod shifting piece (1-14), an arc-shaped groove on the blocking piece (1-12) is contacted with a hook shifting piece (1-11), and the self-transmission rod (1-3) and the hook (1) are mutually driven to rotate around a corresponding shaft under the action of external force; the automatic transmission rod shifting piece (1-14) is in contact with the roller (1-4) on one side of the hanging plate (1-7), and the automatic transmission rod (1-3) and the hanging plate (1-7) are mutually driven to rotate around the corresponding shaft under the action of external force; one side of the hanging plate (1-7) close to the self-transmission rod (1-3) is provided with a pin (1-5) for preventing the hanging plate (1-7) from rotating anticlockwise; one end of the rocker (1-8) is hinged with the other side of the hanging plate (1-7), and the hanging plate (1-7) and the rocker (1-8) are mutually driven to rotate around the corresponding shaft under the action of external force; the normal electromagnetic release controller (6) and the projectile throwing emergency release controller (5) both control the rocker levers (1-8) to rotate.
2. A cargo hook device for helicopters according to claim 1, characterized in that the said hanger plates (1-7) are equilateral triangle structure, the top corners of which are hinged to the housing by means of hanger plate shafts (1-6), one bottom corner being provided with rollers (1-4) and the other bottom corner being hinged to rockers (1-8).
3. A cargo hook device for helicopters, according to claim 1, characterized in that said hook (1) is of crescent shape, the hook (1) is hinged to the housing by means of a hook shaft (1-1), the hook-shaped part of the hook (1) producing a counter-clockwise torque when hanging the cargo.
4. The cargo hook device for the helicopter as claimed in claim 1, wherein the self-transmission rod (1-3) is hinged on the housing through a self-transmission rod shaft (1-2), and the blocking piece (1-12) is further provided with a convex body (1-13) for preventing the hook pulling piece (1-11) from sliding out of the arc-shaped groove; the self-transmission rod shifting sheet (1-14) of the self-transmission rod (1-3) is a hook-shaped structure formed by two arc-shaped structures with different sizes, and the roller (1-4) is arranged in the hook-shaped structure.
5. A cargo hook device for helicopters according to claim 1, characterized in that said hook release mechanism (2) is further provided with a safety catch (7) cooperating with the hook (1); the hanging release mechanism (2) is also provided with a manual mechanism release lever.
6. The cargo hook device for the helicopter as claimed in claim 1, wherein the suspension release device further comprises a weighing sensor (3) for weighing the cargo, an elastomer of the weighing sensor (3) and a rear bearing beam of the hook (1) are of an integral structure, a plurality of strain gauge sensitive grids adhered to different parts of the elastomer form a Wheatstone bridge, the Wheatstone bridge outputs a voltage signal in linear relation with the cargo weight, and the voltage signal is amplified in a first-order mode and filtered in a second-order mode by the weighing signal conditioner (4) to output a voltage signal in a voltage level, so as to output the suspension weight.
7. The cargo hook device for the helicopter as claimed in claim 1, wherein the sling (8) comprises a hanging ring (8-1) for hanging on the hook (1), a lifting rope (8-2) for connecting the hanging ring (8-1) and the lifting hook (8-3) and a lifting hook (8-3) for directly hanging the cargo, and the lifting hook (8-3) is further provided with a spring buckle which can allow the cargo to enter the lifting hook and prevent the cargo from slipping out.
8. The use method of the cargo hook device for the helicopter is characterized by comprising the following steps of:
after goods are hung on the hook (1), under the action of the gravity of the goods, counterclockwise torque is generated, the hook (1) transmits the first torque (a) to the self-transmission rod (1-3) to generate a clockwise second torque (b), the self-transmission rod (1-3) transmits the second torque (b) to the hanging plate (1-7) to generate a counterclockwise third torque (c), the pin (1-5) generates a clockwise fourth torque (d) to the hanging plate (1-7), the magnitude of the fourth torque (d) is equal to that of the third torque (c), the direction of the fourth torque (d) is opposite to that of the third torque (c), and the hanging plate (1-7) is in a balanced state; meanwhile, the hanger plate (1-7) transmits a counterclockwise fifth torque (e) to the self-transmission rod (1-3), the fifth torque (e) is equal to the second torque (b) in magnitude and opposite in direction, and the self-transmission rod (1-3) is in a balanced state; a sixth clockwise torque (f) is transmitted from the transmission rod (1-3) to the hook (1), the sixth torque (f) is equal to the first torque (a) in magnitude and opposite in direction, and the hook (1) is in a balanced state;
when the hung goods need to be released, the release mechanism drives the rocker (1-8) to generate a seventh torque (g), the seventh torque (g) is transmitted to the hanging plate (1-7) under the action of the mechanism to generate a clockwise eighth torque (h), the hanging plate can rotate clockwise around the hanging plate shaft (1-6) under the action of the eighth torque (h), after the roller (1-4) rolls out of the self-transmission rod (1-3), the fifth torque (e) disappears, the self-transmission rod (1-3) rotates clockwise around the self-transmission rod shaft (1-2) under the action of the second torque (b), so that the sixth torque (f) also disappears, and the hook (1) rotates counterclockwise around the hook shaft (1-1) under the action of the first torque (a) to release the hung goods.
9. A control method of a cargo hook device for a helicopter is characterized by comprising three release modes, namely ground manual release, normal electromagnetic release and emergency release; wherein,
the normal electromagnetic release comprises the following specific steps: a normal electromagnetic release button is pressed, a normal electromagnetic release controller (6) drives a rocker (1-8) to rotate, a hook opening indicating switch is switched on, a hook opening indicating lamp is on, a normal electromagnetic release power supply cut-off switch is switched on, a hanging plate (1-7) component rotates to drive a self-transmission rod (1-3) to rotate, a hook (1) is opened, and cargoes are released; the hook (1) resets, the self-transmission rod (1-3) resets, the hanging plate (1-7) component resets, the rocker (1-8) resets, and the hook turn-on indicator light goes out;
the emergency release comprises projectile emergency release and manual emergency release; the specific steps of the throwing and releasing bomb emergency release are as follows: the projectile throwing emergency release button is pressed down, the projectile throwing emergency release controller (5) is pressed down to work, the rocker (1-8) is driven to rotate, the hook opening indicating switch is switched on, the hook opening indicating lamp is on, the hanging plate (1-7) assembly rotates to drive the self-transmission rod (1-3) to rotate, the hook (1) is opened, and cargoes are released; when the projectile throwing emergency release controller is replaced, the hook (1) resets, the self-transmission rod (1-3) resets, the hanging plate (1-7) assembly resets, the rocker (1-8) resets, and the hook turning-on indicator light goes out;
the manual emergency release step is as follows: opening a safety buckle (7) of a cargo hook, moving a manual operating rod, rotating a rocker (1-8), switching on a hook opening indicating switch, lighting a hook opening indicating lamp, rotating a hanging plate (1-7) assembly, rotating a self-transmission rod (1-3), opening the hook (1) and releasing the cargo; when the projectile throwing emergency release controller is replaced, the hook (1) resets, the self-transmission rod (1-3) resets, the hanging plate (1-7) assembly resets, the rocker (1-8) resets, and the hook turning-on indicator light goes out;
the ground manual release step specifically comprises the following steps: the manual operating rod is moved, the rocker (1-8) rotates, the hook opening indicating switch is switched on, the hook opening indicating lamp is on, the hanging plate (1-7) assembly rotates, the automatic transmission rod (1-3) rotates, the hook (1) is opened, and the goods are released; the hook (1) resets, the self-transmission rod (1-3) resets, the hanging plate (1-7) component resets, the rocker (1-8) resets, and the hook turn-on indicator light goes out.
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| CN105947215B (en) * | 2016-05-06 | 2018-08-14 | 江西昌河航空工业有限公司 | Device is put in throwing |
| FR3068342B1 (en) * | 2017-06-28 | 2020-06-19 | Escape International | DEVICE FOR SECURING AT LEAST ONE SLING FOR CARRYING A LOAD |
| CN107697294A (en) * | 2017-10-20 | 2018-02-16 | 上海优伟斯智能***有限公司 | A kind of amphibious fixed-wing logistics aircraft of wing carry goods |
| CN108100254B (en) * | 2017-12-03 | 2021-02-26 | 中国直升机设计研究所 | Goods couple storage device |
| CN109506821B (en) * | 2018-12-29 | 2024-06-11 | 中航电测仪器股份有限公司 | Movable pulley dynamometer and use method thereof |
| CN109625270A (en) * | 2018-12-29 | 2019-04-16 | 中航电测仪器股份有限公司 | A kind of helicopter handling carry device and its operation method |
| CN111017216B (en) * | 2019-12-28 | 2021-09-10 | 中航电测仪器(西安)有限公司 | Unmanned helicopter cargo external hanging and throwing monitoring device and method |
| CN114506454B (en) * | 2021-12-10 | 2023-08-04 | 武汉航空仪表有限责任公司 | Onboard hanging object loading and unloading system and method |
| CN114313267A (en) * | 2021-12-15 | 2022-04-12 | 哈尔滨哈飞航空工业有限责任公司 | Mechanical control box with double-spring action mechanism |
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| US5092542A (en) * | 1991-02-19 | 1992-03-03 | Teleflex Incorporated | Ordnance ejector system for an aircraft |
| US6990928B2 (en) * | 2001-05-24 | 2006-01-31 | Kurtgis Michael P | Method for providing fall protection for a load in an elevated environment |
| CN201075022Y (en) * | 2007-07-27 | 2008-06-18 | 刘巍 | Digital weighting sensor |
| US20100001139A1 (en) * | 2008-02-05 | 2010-01-07 | Todd Humbert | Swiveling pendant assemblies for aerially transporting cargo and associated methods of use and manufacture |
| CN101417697B (en) * | 2008-10-29 | 2010-07-07 | 常熟华东汽车有限公司 | Quick-releasing mechanism |
| CN201961529U (en) * | 2010-12-23 | 2011-09-07 | 江西洪都航空工业集团有限责任公司 | Connecting device capable of separating aircraft plug-in article rapidly and automatically |
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