Fastening device and method suitable for marine transportation of whole helicopter

Abstract

The invention belongs to a tool design technology, and relates to a fixing device and method suitable for marine transportation of a whole helicopter. The fastening device comprises a helicopter complete machine transportation auxiliary device, a ground supporting wheel set, a rolling assembly, an in-box guide rail, a freight container and a mooring rigging assembly. A pair of in-container guide rails is mounted on a floor in the freight container; rolling assemblies capable of being pressed downwards are installed on the two sides of the complete machine transportation auxiliary device, when the complete machine is encased, the rolling assemblies are pressed downwards to jack up the complete machine transportation auxiliary device and slide on guide rails in the container, the rolling assemblies are withdrawn before or after encasing, and the complete machine transportation auxiliary device is placed on a bottom plate of the freight container; when the whole machine is encased, the ground supporting wheel set is placed on the inevitable path of the longitudinal frame of the whole machine transportation auxiliary device outside the freight container; the mooring rigging assembly comprises two sets of mooring rigging.

Description

Technical Field

[0001] The invention belongs to tooling design technology and relates to a fixing device and method suitable for marine transportation of a complete helicopter. Background Art

[0002] As an important aircraft, helicopters are widely used in military, civil and rescue fields. With the increasing demand for helicopters in various countries, the overseas trade business of helicopters will be further promoted. The traditional sea transportation of helicopters mainly adopts the method of fixing helicopters on the deck of container cargo ships, and firmly tying the mooring points of the ship deck and the helicopter mooring points to prevent the helicopter from moving during sea transportation. Although this method is simple and easy to implement, it has many hidden dangers. First, the helicopter body is directly moored with steel wire ropes, which requires high structural strength of the mooring points of the helicopter. If the preload force is too large during the tying process or the hull rolls or pitches at sea, it is easy to cause unilateral force on the helicopter body, or even excessive force on a single point, which may cause damage to the helicopter body. Secondly, the helicopter is directly fixed on the ship deck. In case of bad weather or long-term sea transportation, natural environmental factors such as salt spray, humidity, and mold will put forward higher requirements for the packaging of the helicopter. In addition, the helicopter fixed on the ship deck will occupy multiple cargo spaces, increase transportation costs, and affect the loading and unloading efficiency of other containers. In order to improve this situation, an effective method is urgently needed to solve this problem. Summary of the invention

[0003] Purpose of the invention: To provide a fixing device and method suitable for the marine transportation of complete helicopters. The device has a simple structure and is easy to operate. It can meet the marine transportation requirements of various helicopters, reduce the port operators' dependence on special cranes and slings, and reduce the workload of operators for on-site bundling. It is conducive to the efficiency of loading complete helicopters.

[0004] Technical Solution

[0005] The present invention provides a fastening device suitable for the marine transportation of a complete helicopter, comprising: a complete helicopter transportation auxiliary device, a ground support wheel set, a rolling assembly, a guide rail in a box, a freight container, and a mooring rigging assembly;

[0006] A pair of inner guide rails are installed on the floor of the freight container; downward-pressing rolling components are installed on both sides of the complete machine transport auxiliary device. When the complete machine is packed, the rolling components press down to lift up the complete machine transport auxiliary device and slide on the inner guide rails. Before or after packing, the rolling components are retracted and the complete machine transport auxiliary device is placed on the bottom plate of the freight container; when the complete machine is packed, the ground support wheel assembly is placed on the path that the longitudinal frame of the complete machine transport auxiliary device must pass outside the freight container; the mooring rigging assembly includes two sets of mooring rigging, the first set of mooring rigging fixes the helicopter fuselage and the helicopter complete machine transport auxiliary device, and the second set of mooring rigging fixes the helicopter complete machine transport auxiliary device and the freight container to achieve secondary mooring.

[0007] Further, it also includes: a limit assembly in the box;

[0008] The limiting assembly inside the box is an L-shaped limiting structure. The longitudinal beam of the L-shaped limiting structure is fixedly connected to the outer edge of the frame of the helicopter complete transport auxiliary device. The cross beam of the L-shaped limiting structure of the longitudinal outer frame is fixedly connected to the guide rail inside the box after the complete machine is packed. The cross beam of the L-shaped limiting structure of the transverse outer frame is fixedly connected to the bottom plate of the freight container after the complete machine is packed.

[0009] Further, when the helicopter complete transport auxiliary device is initially loaded into a freight container, the securing device further comprises: a frame beam hanger;

[0010] The frame beam hoist is connected to the lifting point of the helicopter complete machine transport auxiliary device, and the ground support wheel group is pre-arranged on the necessary path for the helicopter complete machine transport auxiliary device to enter the box. The lifting equipment loads the complete machine transport auxiliary device of the installed helicopter into the freight container through the frame beam hoist, and realizes the docking of the rolling assembly and the guide rail inside the box; the ground support wheel group slides along the direction of the guide rail in the box with the helicopter complete machine transport auxiliary device until the center of gravity of the complete machine transport auxiliary device of the installed helicopter enters the box, and the frame beam hoist can be removed.

[0011] Furthermore, the helicopter complete machine transportation auxiliary device includes: a fuselage pallet, a front start fixing part, a pallet lifting point, a tail start fixing part and a pallet mooring column, the fuselage pallet is a frame structure, a pair of front start fixing parts are arranged at its front end, and a tail start fixing part is arranged at its rear end, the pair of front start fixing parts are connected to a cross tube passing through the front landing gear connection point, the tail start fixing part is connected to the connection point of the tail landing gear, the pallet lifting point and the pallet mooring column are evenly distributed on both sides of the fuselage pallet, and a mooring hole is provided at the upper end of the pallet mooring column.

[0012] Further, the cross beam at the fixed end of the front landing gear includes a steel plate and a channel steel;

[0013] Both ends of the two parallel channel steels are fixed to the longitudinal frames, a steel plate is installed on the top surface of the channel steel, and the steel plate is fixedly connected to the front fixing piece through four rubber shock-absorbing pads.

[0014] Further, the tail lifting fixture includes: a support block, a channel steel column, and a fork ear support structure;

[0015] The support block is installed at the tail of the helicopter complete machine transport auxiliary device. The support block is connected to the channel steel column through a fork ear support structure to eliminate or reduce the torque generated when the helicopter complete machine rolls during sea transportation.

[0016] Further, the ground support wheel comprises a steel column wheel, a support side plate, a support top surface steel plate and a top surface rubber;

[0017] The supporting side plates and the supporting top surface steel plate constitute the outer shell of the ground supporting wheel, the top surface rubber is installed on the upper surface of the outer shell, and the steel column wheel is installed on the lower part of the outer shell.

[0018] Further, the rolling assembly includes an eye screw, an I-shaped part, a connecting screw, a screw-mounted universal ball, a double-wheel fixing seat, a steel wheel, and a pin assembly;

[0019] The connecting screw rod installs the rolling assembly on the lifting ring fixing seat of the helicopter complete transport auxiliary device. The lifting ring screw is used for the knob to tighten the screw rod with the I-shaped part as the support, and the double-wheel fixing seat is pushed downward, causing the steel wheel with the pin shaft assembly as the axis to move downward, causing the bottom surface of the helicopter complete transport auxiliary device to be higher than the bottom surface of the steel wheel, forming an elevated posture.

[0020] The present invention provides a securing method suitable for marine transportation of a complete helicopter, using the securing device suitable for marine transportation of a complete helicopter described in the first aspect, and the securing method comprises:

[0021] Step 1: When using for the first time, place a ground support wheel set at the same height as the container floor outside the freight container door to form an external support surface for supporting the helicopter complete machine transport auxiliary device to slide into the freight container;

[0022] Step 2: The frame beam hoist connects the four lifting points of the helicopter transport auxiliary device, and the front end of the transport auxiliary device loaded with the helicopter is hoisted into the track inside the freight container. The rear end of the transport auxiliary device falls on the ground support wheel set under the constraint of the top of the container.

[0023] Step 3: Using the guide rail inside the container to guide, the rolling assembly supports the transport auxiliary device to slide into the freight container to the designated position;

[0024] Step 4: Twist the eye screw of the rolling assembly counterclockwise, so that the steel wheel is supported and lifted by the guide rail inside the box due to the gravity of the transport auxiliary device, and the bottom surface of the transport auxiliary device contacts the bottom plate of the freight container;

[0025] Step 5: rigidly connect the transport auxiliary device to the freight container through the inner limit assembly;

[0026] Step 6: The mooring rigging assembly fastens the helicopter, the transport auxiliary device and the freight container securely, wherein the helicopter wire rope assembly is connected to fasten the helicopter mooring point and the pallet lifting ring of the transport auxiliary device, and the container wire rope assembly is connected to fasten the pallet mooring column of the transport auxiliary device and the mooring point on the edge of the container cavity, thereby realizing secondary mooring;

[0027] Step 7: The first helicopter sea transport is secured and the cargo container with the helicopter secured is directly shipped to the port to complete the port's hoisting and loading, without the need for tedious operations at the port;

[0028] Step eight, after arriving at the destination, place the ground support wheel group at the door of the freight container, untie the container wire rope assembly and disassemble the limit assembly in the container, turn the lifting screw of the rolling assembly clockwise, use the steel wheel to support the transport auxiliary device to raise it, and manually push the transport auxiliary device loaded with the helicopter to slide out of the box along the track inside the box. After reaching the designated position, it is removed by the frame beam hoist to carry out the subsequent helicopter reassembly task; at this point, the packing, securing and unpacking of the helicopter at sea are completed.

[0029] Furthermore, after step seven, the method further includes:

[0030] Step 9. After the transport auxiliary device is slid out of the box along the track (140) inside the box to the designated position according to steps 1 to 7, the front lifting fixture, the rear lifting fixture and the helicopter wire rope assembly of the transport auxiliary device are untied, and the helicopter is directly lifted off by the helicopter hoist. The transport auxiliary device is returned to the freight container and fixed therein for the next installation and fastening operation.

[0031] Beneficial effects:

[0032] The drawer-type principle is adopted through the ground support wheel group, rolling assembly and the rail inside the box to realize the scene application of reasonable loading and fixing of the helicopter in the conventional freight container. The helicopter's fastening installation interface is rigidly connected to the fixing device, and radial and normal buffer devices are added inside the fixing device to reduce or reduce the impact of vibration and impact generated during transportation on the helicopter. At the same time, the rigid connection between the whole machine transportation auxiliary device and the freight container is realized through the limit assembly, and the mooring column of the whole machine transportation auxiliary device is used to connect with the container by wire tying, and the mooring ring on the side of the whole machine transportation auxiliary device is connected with the helicopter by wire tying, so as to realize the secondary mooring effect of the helicopter's sea transportation fixation, and prevent the freight container from being deformed during the port lifting process to the steel cable to directly transmit the force to the helicopter, causing damage to the helicopter. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of the fastening device.

[0034] Figure 2 It is a view from the inside of the securing device box.

[0035] Figure 3 It is a view from the inside of the securing device box.

[0036] Figure 4 It is a schematic diagram of the helicopter complete machine transportation auxiliary device.

[0037] Figure 5 It is a schematic diagram of the optimization of the front fixing parts.

[0038] Figure 6 It is a schematic diagram of the optimized structure of the tail-starting fixings.

[0039] Figure 7 It is a schematic diagram of the ground support wheel group.

[0040] Figure 8 It is a schematic diagram of the limit assembly inside the box.

[0041] Fig. 9 It is a schematic diagram of the rolling component. DETAILED DESCRIPTION

[0042] See also Figure 1 , Figure 2 , Figure 3 The present invention includes optimizing the design and manufacturing of a helicopter complete machine transport auxiliary device 100, designing and manufacturing a ground support wheel set 110, designing and manufacturing an in-box limit assembly 120, designing and manufacturing a rolling assembly 130, an in-box track 140, a freight container 150, a frame beam hanger 160, and a mooring rigging assembly 170, and the helicopter is put into the container and fastened in the container by means of combined assembly.

[0043] The optimized design and manufacture of the helicopter complete machine transport auxiliary device 100 is Figure 4 Based on the helicopter complete machine transportation auxiliary device, the modification is carried out under the constraints of the existing installation height, such as Figure 5 As shown, the welded reinforcement plate 12 and the in-frame reinforcement tube 13 welded thereto in the original invention are changed into a channel steel and steel plate welded structure 101 and a shock-absorbing pad 102 is added to constrain the displacement between the helicopter and the pallet in the six-axis direction, while reducing or avoiding the impact of vibration and impact hazards during transportation.

[0044] like Figure 6As shown, a fork ear support structure 103 is added between the channel steel column 513 and the support block 514 of the tail lift fixture 5 to eliminate or reduce the torque generated when the helicopter rolls during sea transportation. The fork ear support structure 103 includes a double fork ear support 103-1, a single fork ear support 103-2 and a connecting pin assembly 103-3, wherein the double fork ear support 103-1 is firmly welded to the top surface of the channel steel column 513, and the single fork ear support 103-2 is firmly welded to the bottom surface of the support block 514, and then assembled by the connecting pin assembly 103-3.

[0045] like Figure 7 As shown, a ground support wheel set 110 is designed and manufactured, or a transport tank is selected and the height is modified to be the same as the container bottom plate, so as to support the helicopter complete machine transport auxiliary device 100 to slide into the freight container 150. The ground support wheel set 110 includes a steel column wheel 111, a supporting side plate 112, a supporting top surface steel plate 113 and a top surface rubber 114.

[0046] like Figure 8 As shown, the inner limit assembly 120 is designed and manufactured, including an L-shaped support seat 121, an axial connection assembly 122, a normal connection assembly 123, a 2 mm thick pad 124, and a 3 mm thick pad 125. According to the positioning requirements of the helicopter inside the container, the four sides of the whole machine transportation auxiliary device 100 are firmly connected to the limit assembly 120 through the axial connection assembly 122, and are firmly installed with the threaded holes pre-buried in the bottom plate of the container through the normal connection assembly 123. During the installation process, the height is adjusted by the 2 mm thick pad 124 and the 3 mm thick pad 125.

[0047] like Fig. 9 As shown, a rolling assembly 130 is designed and manufactured, including a lifting eye screw 131, a molding 132, a connecting screw 133, a screw-mounted universal ball 134, a double wheel fixing seat 135, a steel wheel 136, and a pin assembly 137. The rolling assembly 130 is installed on the lifting eye fixing seat 14 of the helicopter complete machine transportation auxiliary device 100 through the connecting screw 133, and the lifting eye screw 131 is used to turn the knob to tighten the screw with the molding 132 as a support, and the double wheel fixing seat 135 is supported downward, so that the steel wheel 136 with the pin assembly 137 as the axis moves downward, so that the bottom surface of the helicopter complete machine transportation auxiliary device 100 is higher than the bottom surface of the steel wheel 136, forming a raised posture.

[0048] The helicopter complete machine transportation auxiliary device 100, the designed and manufactured ground support wheel group 110, the designed and manufactured box limit assembly 120, the designed and manufactured rolling assembly 130, the box track 140, the freight container 150, the frame beam sling 160, and the mooring rigging assembly 170 are assembled into a fixed device for the sea transportation of the helicopter complete machine, so as to realize the task of putting the helicopter into the container and fastening it in the container. The fixed device for the sea transportation of the helicopter complete machine is used to lay the box track 140 in advance in the freight container 150, and the ground support wheel group 110 and the bottom plate of the freight container 150 are used to form a supporting surface that can support the transportation auxiliary device 100. The transportation auxiliary device 100 loaded with the helicopter complete machine is lifted and dropped on the supporting surface by the frame beam sling 160, and the lifting eye screw 131 is screwed clockwise to push open the double wheel fixing seat 135. The steel wheel 136 sinks to the lowest point of the steel wheel 136 below the bottom surface of the transportation auxiliary device 100, so that the transportation auxiliary device 100 is elevated. After pushing the transport auxiliary device 100 along the inner track 140 into the freight container 150 to the designated position, the lifting eye screw 131 is screwed counterclockwise, the steel wheel 136 loses its supporting function, and the bottom surface of the auxiliary device 100 contacts the bottom plate of the freight container 150. The inner limit assembly 120 is installed, and the mooring rigging assembly 170 is used to tighten it securely. Among them, the helicopter wire rope assembly 171 is connected to fasten the helicopter mooring point and the pallet lifting eye 4, and the container wire rope assembly 172 is connected to fasten the pallet mooring column 6 and the container inner cavity edge mooring point, so as to achieve a secondary mooring effect, thereby preventing the freight container 150 from deforming during the port lifting process until the steel cable directly transmits the force to the helicopter, causing damage to the helicopter.

[0049] The present invention provides a fixing device suitable for the marine transportation of a complete helicopter, which is composed of a complete helicopter transportation auxiliary device 100, a ground support wheel group 110, a limit assembly 120 in the box, a rolling assembly 130, a guide rail 140 in the box, a freight container 150, a frame beam hanger 160, and a mooring rigging assembly 170. The complete helicopter is fixed by combined assembly and coordinated bolting to meet the marine transportation securing requirements.

[0050] The present invention also provides a method for fixing a complete helicopter during marine transportation, comprising the following steps:

[0051] Step 1: When using for the first time, place a ground support wheel assembly 110 at the same height as the container floor outside the door of the freight container 150 to form an external support surface to support the helicopter transport auxiliary device 100 to slide into the freight container 150.

[0052] Step 2: The frame beam hoist 160 connects the four lifting points of the helicopter transport auxiliary device 100, and lifts the front end of the transport auxiliary device loaded with the helicopter into the track 140 inside the freight container. Constrained by the top of the container, the rear end of the transport auxiliary device falls on the ground support wheel group 110.

[0053] Step 3: Guided by the inner guide rail 140 , the rolling assembly 130 supports the transport auxiliary device 100 to slide into the freight container to a designated position.

[0054] Step 4, counterclockwise screw the eye screw 131 of the rolling assembly 130, so that the steel wheel is supported and lifted by the guide rail 140 inside the box due to the gravity of the transportation auxiliary device 100, and the bottom surface of the transportation auxiliary device 100 contacts the bottom plate surface of the freight container 150.

[0055] Step five: rigidly connect the transport auxiliary device 100 and the freight container 150 into one through the in-box limiting assembly 120.

[0056] Step six, the mooring rigging assembly 170 fastens the helicopter, the transport assisting device 100 and the freight container 150 securely, wherein the helicopter wire rope assembly 171 is connected to fasten the helicopter mooring point and the pallet lifting ring 4 of the transport assisting device 100, and the container wire rope assembly 172 is connected to fasten the pallet mooring column 6 of the transport assisting device 100 and the mooring point on the edge of the container inner cavity, thereby realizing secondary mooring.

[0057] Step 7: The first helicopter sea transport is secured and the cargo container with the helicopter secured is directly shipped to the port to complete the port's hoisting and loading, without the need for tedious operations at the port. Go to step 8 or step 9.

[0058] Step 8: After arriving at the destination, place the ground support wheel assembly 110 at the door of the freight container 150, untie the container wire rope assembly 172 and dismantle the inner limit assembly 120, turn the eye screw 131 of the rolling assembly 130 clockwise, use the steel wheel 136 to support the transport auxiliary device 100, and push the transport auxiliary device 100 loaded with the helicopter to slide out of the box along the inner track 140. After reaching the designated position, it is moved away by the frame beam hanger 160 to carry out the subsequent helicopter reassembly task. At this point, the packing, fastening and unpacking of the helicopter at sea are completed.

[0059] Step nine, after the transport assisting device 100 is slid out of the box along the track 140 inside the box to the designated position according to steps one to seven, the front fixing part 2, the rear fixing part 5 and the helicopter wire rope assembly 171 of the transport assisting device 100 are untied, and the helicopter is directly lifted off by the helicopter hoist, and the transport assisting device 100 is returned to the freight container and fixed therein, awaiting the next installation and securing operation.

Claims

1. A fastening device suitable for marine transportation of complete helicopters, characterized in that: include: A helicopter complete machine transport auxiliary device (100), a ground support wheel assembly (110), a rolling assembly (130), an inner guide rail (140), a freight container (150), and a mooring rigging assembly (170); A pair of guide rails (140) are installed on the floor of the freight container (150); downwardly pressing rolling assemblies (130) are installed on both sides of the complete machine transport auxiliary device (100); when the complete machine is packed, the rolling assemblies (130) press down to lift up the complete machine transport auxiliary device (100) and slide on the guide rails (140); before or after packing, the rolling assemblies (130) are retracted and the complete machine transport auxiliary device (100) is placed on the bottom plate of the freight container (150); when the complete machine is packed, the ground support wheel assembly (110) is placed on the path that the longitudinal frame of the complete machine transport auxiliary device (100) must pass outside the freight container (150); the mooring rigging assembly (170) includes two sets of mooring rigging, the first set of mooring rigging fixedly connects the helicopter fuselage with the helicopter complete machine transport auxiliary device (100), and the second set of mooring rigging fixedly connects the helicopter complete machine transport auxiliary device (100) and the freight container (150), thereby realizing secondary mooring.

2. The fastening device according to claim 1, characterized in that: Also includes: In-box limit assembly (120); The inner limit assembly (120) is an L-shaped limit structure, the longitudinal beam of the L-shaped limit structure is fixedly connected to the outer edge of the frame of the helicopter complete machine transport auxiliary device (100), the transverse beam of the L-shaped limit structure of the longitudinal outer frame is fixedly connected to the inner guide rail (140) of the box after the complete machine is packed, and the transverse beam of the L-shaped limit structure of the transverse outer frame is fixedly connected to the bottom plate of the freight container (150) after the complete machine is packed.

3. The fastening device according to claim 1, characterized in that: When the helicopter complete machine transport auxiliary device (100) is initially loaded into the freight container (150), the fastening device further comprises: a frame beam hanger (160); The frame beam sling (160) is connected to the lifting point of the helicopter complete machine transport auxiliary device (100); the ground support wheel group (110) is pre-arranged on the necessary path for the helicopter complete machine transport auxiliary device (100) to enter the box; the lifting equipment loads the helicopter complete machine transport auxiliary device (100) partially installed into the freight container (150) through the frame beam sling (160) to achieve docking between the rolling assembly (130) and the guide rail (140) in the box; the ground support wheel group (110) slides along the direction of the guide rail (140) in the box with the helicopter complete machine transport auxiliary device (100) until the center of gravity of the helicopter complete machine transport auxiliary device (100) installed enters the box, and the frame beam sling (160) can be removed.

4. The fastening device according to claim 3, characterized in that: The helicopter complete machine transport auxiliary device (100) comprises: a fuselage pallet (1), a front start fixing member (2), a pallet lifting point (3), a tail start fixing member (5) and a pallet mooring column (6); the fuselage pallet (1) is a frame structure, a pair of front start fixing members (2) are arranged at the front end thereof, and a tail start fixing member (5) is arranged at the rear end thereof; the pair of front start fixing members (2) are connected to a transverse tube passing through a front landing gear connection point, and the tail start fixing member (5) is connected to a tail landing gear connection point; the pallet lifting point (3) and the pallet mooring column (6) are evenly distributed on both sides of the fuselage pallet (1), and a mooring hole is provided at the upper end of the pallet mooring column (6).

5. The fastening device according to claim 4, characterized in that: The cross beam at the fixed end of the front landing gear includes steel plates and channel steel; Both ends of the two parallel channel steels are fixed to the longitudinal frames, a steel plate is installed on the top surface of the channel steel, and the steel plate is fixedly connected to the front fixing piece through four rubber shock-absorbing pads.

6. The fastening device according to claim 4, characterized in that: The tail lifting fixtures include: support block, channel steel column, fork ear support structure; The support block is installed at the tail of the helicopter complete machine transport auxiliary device (100), and the support block is connected to the channel steel column through a fork ear support structure, thereby eliminating or reducing the torque generated when the helicopter complete machine rolls during sea transportation.

7. The fastening device according to claim 4, characterized in that: The ground support wheel comprises a steel column wheel (111), a support side plate (112), a support top surface steel plate (113) and a top surface rubber (114); The supporting side plates (112) and the supporting top surface steel plate (113) form the outer shell of the ground supporting wheel, the top surface rubber (114) is installed on the upper surface of the outer shell, and the steel column wheel (111) is installed on the lower part of the outer shell.

8. The fastening device according to claim 4, characterized in that: The rolling assembly (130) comprises a lifting eye screw (131), an I-shaped part (132), a connecting screw rod (133), a screw-mounted universal ball (134), a double-wheel fixing seat (135), a steel wheel (136), and a pin assembly (137); The connecting screw rod (133) is used to mount the rolling assembly (130) on the lifting ring fixing seat (14) of the helicopter complete machine transport auxiliary device (100). The lifting ring screw (131) is used to turn the knob to tighten the screw rod with the I-shaped piece (132) as a support to support the double wheel fixing seat (135) downward, so that the steel wheel (136) with the pin shaft assembly (137) as the axis moves downward, so that the bottom surface of the helicopter complete machine transport auxiliary device (100) is higher than the bottom surface of the steel wheel (136), forming an elevated posture.

9. A method for securing a complete helicopter for marine transportation, characterized in that: The securing device for marine transportation of a complete helicopter as claimed in any one of claims 1 to 8 is adopted, and the securing method comprises: Step 1: When used for the first time, a ground support wheel set (110) is placed outside the door of the freight container (150) at the same height as the container floor, forming an external support surface for supporting the helicopter complete machine transport auxiliary device (100) to slide into the freight container (150); Step 2: The frame beam hoist (160) is connected to the four lifting points of the helicopter complete machine transport auxiliary device (100), and the front end of the transport auxiliary device loaded with the helicopter complete machine is hoisted into the track (140) in the freight container. The rear end of the transport auxiliary device falls on the ground support wheel set (110) constrained by the top of the container; Step 3: Using the guide rail (140) inside the container to guide, the rolling assembly (130) supports the transport auxiliary device (100) to slide into the freight container to a designated position; Step 4, counterclockwise twisting the eye screw (131) of the rolling assembly (130) causes the steel wheel to be reversely supported and lifted by the guide rail (140) inside the box due to the gravity of the transport auxiliary device (100), and the bottom surface of the transport auxiliary device (100) contacts the bottom plate surface of the freight container (150); Step 5: rigidly connecting the transport auxiliary device (100) and the freight container (150) into one piece through the in-box limit assembly (120); Step 6: The mooring rigging assembly (170) fastens the helicopter, the transport auxiliary device (100) and the freight container (150) securely, wherein the helicopter wire rope assembly (171) is connected to fasten the helicopter mooring point and the pallet lifting ring (4) of the transport auxiliary device (100), and the container wire rope assembly (172) is connected to fasten the pallet mooring column (6) of the transport auxiliary device (100) and the mooring point on the edge of the container cavity, thereby realizing secondary mooring; Step 7: The first helicopter sea transport is secured and the cargo container with the helicopter secured is directly shipped to the port to complete the port's hoisting and loading, without the need for tedious operations at the port; Step 8, after arriving at the destination, place the ground support wheel assembly (110) at the door of the freight container (150), untie the container wire rope assembly (172) and disassemble the limit assembly (120) in the container, turn the eye screw (131) of the rolling assembly (130) clockwise, use the steel wheel (136) to support the transport auxiliary device (100) to raise it, and manually push the transport auxiliary device (100) loaded with the helicopter to slide out of the container along the track (140) in the container. After reaching the designated position, it is moved away by the frame beam hanger (160) to carry out the subsequent helicopter reassembly task; at this point, the packing, fastening and unpacking work of the helicopter at sea transportation is completed.

10. The method according to claim 9, characterized in that After step seven, the method further comprises: Step 9. After the transport auxiliary device (100) is slid out of the container along the inner track (140) to the designated position according to steps 1 to 7, the front lifting fixture (2), the rear lifting fixture (5) and the helicopter wire rope assembly (171) of the transport auxiliary device (100) are untied, and the helicopter is directly lifted off by the helicopter hoist. The transport auxiliary device (100) is returned to the freight container and fixed therein, and is ready for installation and fastening operations next time.

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