Maintenance operation bellyband system for AS332C1 type helicopter

Abstract

The invention discloses a maintenance operation bellyband system for an AS332C1 type helicopter, and belongs to the technical field of power transmission line detection auxiliary equipment, in order to connect the AS332C1 type helicopter with a hanging basket, the maintenance operation bellyband system for the AS332C1 type helicopter comprises an in-cabin support (1), an out-cabin cross beam (2) and an insulating rope (3), the in-cabin support (1) can be fixed in a cabin (71), and the out-cabin cross beam (2) can be fixed in the cabin (71). The two out-cabin cross beams (2) are arranged in a left-right spaced mode, the outer ends of the out-cabin cross beams (2) are connected with the pulleys (5), the insulating rope (3) winds around the pulleys (5), and the lower end of the insulating rope (3) can be fixedly connected with the hanging basket (8). The AS332C1 type helicopter can be connected with a hanging basket through the maintenance operation bellyband system for the AS332C1 type helicopter, so that the safety of operators can be guaranteed, and the convenience of additionally installing the hanging basket and the use flexibility can also be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary equipment for transmission line detection, and specifically to an overhaul operation abdominal belt system for AS332C1 helicopters. Background Art

[0002] The AS332C1 helicopter is a multi-purpose helicopter. With its excellent performance and wide adaptability, it has been used for tasks such as search and rescue, maritime transportation, and offshore oil platform support worldwide. When the AS332C1 helicopter performs transmission line detection, it needs to be connected to a gondola, but currently, the AS332C1 helicopter cannot directly connect to the gondola. Summary of the Invention

[0003] In order to connect the AS332C1 helicopter to the gondola, the present invention provides an overhaul operation abdominal belt system for AS332C1 helicopters. The AS332C1 helicopter can be connected to the gondola through the overhaul operation abdominal belt system for AS332C1 helicopters, which can not only ensure the safety of the operators but also guarantee the convenience of installing the gondola and the flexibility of use.

[0004] The technical solution adopted by the embodiments of the present invention to solve its technical problems is:

[0005] An overhaul operation abdominal belt system for AS332C1 helicopters includes an in-cabin bracket, an out-of-cabin crossbeam, and insulating ropes. The in-cabin bracket can be fixed inside the cabin of the helicopter body. Two out-of-cabin crossbeams are arranged at intervals left and right. The inner ends of the out-of-cabin crossbeams are connected to the in-cabin bracket, and pulleys are connected to the outer ends of the out-of-cabin crossbeams. The insulating ropes pass around the pulleys, and the lower ends of the insulating ropes can be connected and fixed to the gondola.

[0006] The beneficial effects of the embodiments of the present invention are:

[0007] 1. The overhaul operation abdominal belt system is convenient for loading and unloading on the AS332C1 helicopter.

[0008] 2. The explosive cap can release the gondola in an emergency.

[0009] 3. The anti-torsion bar ensures the stability of high-altitude operations.

[0010] 4. The overhaul operation abdominal belt system can also be installed on other helicopters. Brief Description of the Drawings

[0011] The schematic diagrams in the specification, which form a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0012] Figure 1It is a three-dimensional schematic diagram of the overhaul operation abdominal belt system for AS332C1 type helicopters described in the present invention.

[0013] Figure 2 is Figure 1 an enlarged upper schematic diagram.

[0014] Figure 3 is Figure 2 an enlarged schematic diagram of the in-cabin support part in the middle cabin.

[0015] Figure 4 It is a top view schematic diagram of the overhaul operation abdominal belt system for AS332C1 type helicopters described in the present invention.

[0016] The description of the reference numerals is as follows:

[0017] 1. In-cabin support; 2. Out-of-cabin cross beam; 3. Insulating rope; 4. Anti-torsion bar; 5. Pulley; 6. Rope cutting device; 7. Helicopter body; 8. Suspension basket;

[0018] 11. Support cross beam; 12. Rear longitudinal beam of the support; 13. Front longitudinal beam of the support; 14. Connecting piece; 15. Rear connecting rod; 16. Front connecting rod; 17. Rotating shaft; 18. Locking part;

[0019] 21. Left outer cross beam; 22. Right outer cross beam;

[0020] 31. Left side rope; 32. Right side rope;

[0021] 41. Upper connecting rod; 42. Lower connecting rod; 43. First quick-release joint; 44. Second quick-release joint;

[0022] 71. Cabin; 72. Lock seat;

[0023] 311. Upper left rope segment; 312. Lower left rope segment;

[0024] 321. Upper right rope segment; 322. Lower right rope segment. Detailed implementation manners

[0025] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] For the convenience of understanding and description, the following description of the present invention adopts absolute positional relationships. Without special instructions, the orientation word "up" represents the direction perpendicular to Figure 4 the paper surface and pointing outside the paper surface, the orientation word "down" represents the direction perpendicular to Figure 4 the paper surface and pointing inside the paper surface, the orientation word "left" represents Figure 4 the left side direction inFigure 4 In the right direction in Figure 4 In the upper direction in Figure 4 In the lower direction. The present invention is described from the observation perspective of the reader or user, but the above orientation words should not be understood or construed as limiting the protection scope of the present invention. Regarding the dimensions and angles of the components therein, those skilled in the art can specifically determine them according to actual needs or through a limited number of tests.

[0027] As Figures 1 to 4 shown, a maintenance belly band system for an AS332C1 type helicopter according to an embodiment of the present invention includes an in-cabin bracket 1, an out-of-cabin cross beam 2, and an insulating rope 3. The in-cabin bracket 1 can be fixed inside the cabin 71 of the helicopter body 7. Two out-of-cabin cross beams 2 are arranged at intervals left and right. The inner ends of the out-of-cabin cross beams 2 are connected to the in-cabin bracket 1, and pulleys 5 are connected to the outer ends of the out-of-cabin cross beams 2. The insulating rope 3 bypasses the pulleys 5, and the lower end of the insulating rope 3 can be fixedly connected to the hanging basket 8.

[0028] The in-cabin bracket 1 includes two bracket cross beams 11. The two bracket cross beams 11 are arranged at intervals front and back. The two bracket cross beams 11 are symmetric front and back and are mirror images of each other. The two bracket cross beams 11 both extend in the left-right direction. The length of the bracket cross beam 11 (the dimension in the left-right direction) is less than the width of the helicopter body 7 (the dimension in the left-right direction). The two bracket cross beams 11 are fixedly connected by a connecting member 14. The connecting member 14 is in a U-shaped structure. A plurality of connecting members 14 are arranged at intervals in the left-right direction. The bracket cross beam 11 and the connecting member 14 are fixedly connected by bolts and nuts.

[0029] As Figures 3 to 4 shown, the in-cabin bracket 1 further includes two bracket rear longitudinal beams 12. The two bracket rear longitudinal beams 12 are symmetric left and right and are mirror images of each other. The two bracket rear longitudinal beams 12 are both located behind the two bracket cross beams 11. The two bracket rear longitudinal beams 12 are arranged at intervals left and right. The two bracket rear longitudinal beams 12 both extend in the front-back direction. The front ends of the two bracket rear longitudinal beams 12 are both fixedly connected to a rear bracket cross beam 11 by bolts and nuts.

[0030] The distance between the two bracket rear longitudinal beams 12 is less than the length of the bracket cross beam 11. The rear ends of the two bracket rear longitudinal beams 12 are fixedly connected by a rear connecting rod 15. The rear connecting rod 15 extends in the left-right direction. The bracket rear longitudinal beam 12 and the rear connecting rod 15 are fixedly connected by bolts and nuts. The two bracket rear longitudinal beams 12 are both fixedly connected to the lock seat 72 inside the cabin 71 by bolts and nuts.

[0031] The in-cabin support 1 further includes two front longitudinal beams 13 of the support. The two front longitudinal beams 13 of the support are symmetric about the left and right and are mirror images of each other. The two front longitudinal beams 13 of the support are both located in front of the two cross beams 11 of the support. The two front longitudinal beams 13 of the support are arranged at intervals left and right. The two front longitudinal beams 13 of the support both extend in the front-rear direction. The rear ends of the two front longitudinal beams 13 are both connected and fixed to a front cross beam 11 through bolts and nuts.

[0032] As Figures 3 to 4 shown, the distance between the two front longitudinal beams 13 of the support is less than the length of the cross beam 11 of the support. The front ends of the two front longitudinal beams 13 are connected and fixed through a front connecting rod 16. The front connecting rod 16 extends in the left-right direction. The front longitudinal beam 13 of the support is connected and fixed to the front connecting rod 16 through bolts and nuts. The two front longitudinal beams 13 of the support are both connected and fixed to a lock seat 72 in the engine compartment 71 through bolts and nuts.

[0033] The two front longitudinal beams 13 of the support and the two rear longitudinal beams 12 of the support are directly opposite to each other front and back. The length of the front longitudinal beam 13 of the support (the dimension in the front-rear direction) is less than the length of the rear longitudinal beam 12 of the support (the dimension in the front-rear direction). The length of the front longitudinal beam 13 of the support is 15% - 50% of the length of the rear longitudinal beam 12 of the support. The cross beam 11 of the support, the rear longitudinal beam 12 of the support, and the front longitudinal beam 13 of the support are all made of aluminum alloy.

[0034] In the front-rear direction, the two out-of-cabin cross beams 2 are both located between the two cross beams 11 of the support. The two out-of-cabin cross beams 2 are symmetric about the left and right and are mirror images of each other. The two out-of-cabin cross beams 2 both extend in the left-right direction. The inner ends of the out-of-cabin cross beams 2 are located in the engine compartment 71, and the outer ends of the out-of-cabin cross beams 2 are located outside the engine compartment 71. The inner ends of the out-of-cabin cross beams 2 are connected to the cross beam 11 of the support through a rotating shaft 17. The rotating shaft 17 extends in the front-rear direction. The out-of-cabin cross beam 2 can rotate around the rotating shaft 17, and the outer end of the out-of-cabin cross beam 2 can rotate into or outside the engine compartment 71.

[0035] As Figures 3 to 4 shown, when the out-of-cabin cross beam 2 needs to be folded and retracted, when the outer end of the out-of-cabin cross beam 2 rotates into the engine compartment 71, the out-of-cabin cross beam 2 is in an upright state and extends in the up-down direction. When the out-of-cabin cross beam 2 needs to be unfolded and extended, when the outer end of the out-of-cabin cross beam 2 rotates outside the engine compartment 71, the out-of-cabin cross beam 2 is in a horizontal state and extends in the left-right direction.

[0036] The support crossbeam 11 is provided with a locking member 18 which locks the outboard crossbeam 2 and the support crossbeam 11, thereby fixing the outboard crossbeam 2 in an upright state or a horizontal state. The locking member 18 can be a locking bolt. For example, it can be a first locking bolt and a second locking bolt. The first locking bolt can lock the outboard crossbeam 2 in a horizontal state, and the second locking bolt can lock the outboard crossbeam 2 in an upright state. The support crossbeam 11 is provided with mounting through holes through which the locking member 18 can pass and the locking member 18 can abut against the outboard crossbeam 2.

[0037] The two outboard crossbeams 2 are respectively a left outboard crossbeam 21 and a right outboard crossbeam 22. The diameter of the insulating rope 3 can be 16 mm - 20 mm, and the load-bearing capacity of the insulating rope 3 is not less than 1000 kg. The insulating rope 3 includes a left-side rope 31 and a right-side rope 32 arranged left and right.

[0038] The inner bearing of the pulley 5 adopts a standard rolling bearing. The wheel groove body material is selected as the nautical standard fire-resistant, wear-resistant and cloth-impregnated bakelite material. The groove width is compatible with the insulating rope 3 with a diameter of 16 mm - 20 mm. The wheel diameter of the pulley 5 is not less than 3 times the rope diameter. An anti-disengagement mechanism and a protection pin are installed on the outside of the pulley 5 and are connected to a damper, which can prevent the hanging basket 8 from tilting too fast to the left and right.

[0039] The left-side rope 31 bypasses the pulley 5 connected to the outer end of the left outboard crossbeam 21. The left-side rope 31 includes an upper left rope segment 311 and a lower left rope segment 312 connected in sequence up and down. The upper left rope segment 311 is fixedly connected to the inboard support 1; the right-side rope 32 bypasses the pulley 5 connected to the outer end of the right outboard crossbeam 22. The right-side rope 32 includes an upper right rope segment 321 and a lower right rope segment 322 connected in sequence up and down. The upper right rope segment 321 is fixedly connected to the inboard support 1.

[0040] Both the upper left rope segment 311 and the upper right rope segment 321 are in a horizontal state, both the upper left rope segment 311 and the upper right rope segment 321 extend in the left-right direction, and the axis of the pulley 5 extends in the front-back direction. The lower ends of the lower left rope segment 312 and the lower right rope segment 322 are fixedly connected to the left and right ends of the upper part of the hanging basket 8 in one-to-one correspondence.

[0041] As Figures 1 to 2As shown in the figure, an anti-twist rod 4 is provided between the lower left rope segment 312 and the lower right rope segment 322. The anti-twist rod 4 can prevent the hanging basket 8 from rotating significantly during the shaking process. The anti-twist rod 4 has an acute-angled structure. The anti-twist rod 4 includes an upper connecting rod 41 and a lower connecting rod 42 arranged up and down. The right ends of the upper connecting rod 41 and the lower connecting rod 42 are arranged at an interval up and down. The right ends of the upper connecting rod 41 and the lower connecting rod 42 are both connected to the lower right rope segment 322 through a first quick-release joint 43. The left ends of the upper connecting rod 41 and the lower connecting rod 42 are both connected to a second quick-release joint 44, and the second quick-release joint 44 is connected to the lower left rope segment 312.

[0042] Rope cutting devices 6 are connected to both the upper left rope segment 311 and the upper right rope segment 321. The rope cutting devices 6 are connected to the cabin support 1 inside the cabin. The rope cutting devices 6 can cut the upper left rope segment 311 and the upper right rope segment 321 and disconnect the insulating rope 3 from the cabin support 1 inside the cabin. The rope cutting device 6 connected to the upper left rope segment 311 can cut the upper left rope segment 311, and the rope cutting device 6 connected to the upper right rope segment 321 can cut the upper right rope segment 321.

[0043] The rope cutting device 6 can adopt an explosive cap. The explosive cap can be a product of the prior art. The explosive cap can convert chemical energy into mechanical force for cutting. When activated by an electric current, the explosive inside the device is ignited, and the high-speed gas pushes the cutter head to cut the insulating rope 3 (i.e., the upper left rope segment 311 and the upper right rope segment 321) passing through its blade hole, and can cut the insulating rope 3 in an emergency to complete the release of the hanging basket 8. Alternatively, the rope cutting device 6 can also adopt an existing hydraulic shear.

[0044] Next, a helicopter is introduced. The helicopter is an AS332C1 type helicopter. The helicopter includes a helicopter body 7 and the above-mentioned overhaul operation belly belt system for the AS332C1 type helicopter. Inside the helicopter body 7, there is a cockpit and a cabin 71 arranged front and back. The cabin support 1 is fixed inside the cabin 71 of the helicopter body 7, and the lower end of the insulating rope 3 is connected to a hanging basket 8.

[0045] The overhaul operation belly belt system for the AS332C1 type helicopter is convenient to disassemble. Only the hanging basket 8 and the anti-twist rod 4 need to be removed, then the insulating rope 3 is retracted, and finally the part of the cabin support 1 on the fuselage is removed. The overhaul operation belly belt system for the AS332C1 type helicopter meets the convenience of installation and takes into account the throwing of the hanging basket 8 in an emergency. The overhaul operation belly belt system for the AS332C1 type helicopter can be installed on the helicopter, can ensure the safety of the operating personnel, and also has the convenience of installation and the flexibility of use.

[0046] Next, the working process of the overhaul operation belly belt system for the AS332C1 type helicopter and the helicopter is introduced.

[0047] When maintenance work is required, the outer cabin crossbeam 2 is unfolded and placed in a horizontal state, and the first locking bolt is tightened. The outer cabin crossbeam 2 cannot rotate relative to the inner cabin support 1. The lower end of the insulating rope 3 is connected to the hanging basket 8. After the maintenance work is completed, the first locking bolt is loosened, the outer cabin crossbeam 2 is folded and retracted into an upright state, and the second locking bolt is tightened. The outer cabin crossbeam 2 cannot rotate relative to the inner cabin support 1, and the lower end of the insulating rope 3 is disconnected from the hanging basket 8.

[0048] As described above, only the specific embodiments of the present invention are provided, and the scope of the invention cannot be limited by them. Therefore, the replacement of equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still fall within the scope covered by the present invention. In addition, the technical features in the present invention can be freely combined with each other, between technical features and technical solutions, between technical solutions and technical solutions, and between embodiments and embodiments.

Claims

1. An overhaul operation abdominal belt system for AS332C1 type helicopters, characterized in that, The overhaul belly band system for the AS332C1 helicopter includes an in-cabin support (1), an out-of-cabin cross beam (2), and an insulating rope (3). The in-cabin support (1) can be fixed inside the cabin (71) of the helicopter body (7). Two out-of-cabin cross beams (2) are arranged at intervals left and right. The inner end of the out-of-cabin cross beam (2) is connected to the in-cabin support (1), and a pulley (5) is connected to the outer end of the out-of-cabin cross beam (2). The insulating rope (3) bypasses the pulley (5), and the lower end of the insulating rope (3) can be connected and fixed to the hanging basket (8).

2. The overhaul operation abdominal belt system for AS332C1 type helicopter according to claim 1, characterized in that, The in-cabin support (1) contains two support cross beams (11). The two support cross beams (11) are arranged at intervals front and back. The two support cross beams (11) both extend in the left-right direction. The two support cross beams (11) are connected and fixed by a connecting member (14).

3. The overhaul operation belly belt system for AS332C1 type helicopters according to claim 2, characterized in that, The in-cabin support (1) also contains two support rear longitudinal beams (12). The two support rear longitudinal beams (12) are arranged at intervals left and right. The two support rear longitudinal beams (12) both extend in the front-back direction. The front ends of the two support rear longitudinal beams (12) are both connected and fixed to one of the support cross beams (11) at the rear.

4. The overhaul operation abdominal belt system for AS332C1 type helicopter according to claim 3, characterized in that, The distance between the two support rear longitudinal beams (12) is less than the length of the support cross beam (11). The rear ends of the two support rear longitudinal beams (12) are connected and fixed by a rear connecting rod (15). The two support rear longitudinal beams (12) are both connected and fixed to the locking seat (72) inside the cabin (71) by bolts and nuts.

5. The belly belt system for maintenance operations of AS332C1 helicopters according to claim 2, characterized in that, The in-cabin support (1) also contains two support front longitudinal beams (13). The two support front longitudinal beams (13) are arranged at intervals left and right. The two support front longitudinal beams (13) both extend in the front-back direction. The rear ends of the two support front longitudinal beams (13) are both connected and fixed to one of the support cross beams (11) at the front.

6. The overhaul operation abdominal belt system for AS332C1 type helicopter according to claim 5, characterized in that, The distance between the two support front longitudinal beams (13) is less than the length of the support cross beam (11). The front ends of the two support front longitudinal beams (13) are connected and fixed by a front connecting rod (16). The two support front longitudinal beams (13) are both connected and fixed to the locking seat (72) inside the cabin (71) by bolts and nuts.

7. The overhaul operation belly belt system for AS332C1 type helicopter according to claim 1, wherein, The two out-of-cabin cross beams (2) both extend in the left-right direction. The inner end of the out-of-cabin cross beam (2) is inside the cabin (71), and the outer end of the out-of-cabin cross beam (2) is outside the cabin (71). The inner end of the out-of-cabin cross beam (2) is connected to the support cross beam (11) by a rotating shaft (17). The rotating shaft (17) extends in the front-back direction. The out-of-cabin cross beam (2) can rotate around the rotating shaft (17). The outer end of the out-of-cabin cross beam (2) can rotate into or out of the cabin (71). A locking component (18) is arranged on the support cross beam (11), and the locking component (18) locks the out-of-cabin cross beam (2) and the support cross beam (11).

8. The overhaul operation belly belt system for AS332C1 type helicopters according to claim 7, characterized in that, The two out-of-cabin cross beams (2) are respectively a left outer cross beam (21) and a right outer cross beam (22). The insulating rope (3) contains a left-side rope (31) and a right-side rope (32) arranged left and right; The left-side rope (31) bypasses the pulley (5) connected to the outer end of the left outer cross beam (21). The left-side rope (31) contains an upper left rope segment (311) and a lower left rope segment (312) connected in sequence up and down. The upper left rope segment (311) is connected and fixed to the in-cabin support (1); The right rope (32) bypasses the pulley (5) connected to the outer end of the right outer cross beam (22). The right rope (32) includes an upper right rope segment (321) and a lower right rope segment (322) connected in sequence from top to bottom. The upper right rope segment (321) is fixedly connected to the in-cabin support (1). An anti-twist bar (4) is arranged between the lower left rope segment (312) and the lower right rope segment (322). The anti-twist bar (4) has an acute angle structure. The anti-twist bar (4) includes an upper connecting rod (41) and a lower connecting rod (42). The right ends of the upper connecting rod (41) and the lower connecting rod (42) are arranged at an upper and lower interval. The right ends of the upper connecting rod (41) and the lower connecting rod (42) are both connected to the lower right rope segment (322) through a first quick-release joint (43). The left ends of the upper connecting rod (41) and the lower connecting rod (42) are both connected to a second quick-release joint (44). The second quick-release joint (44) is connected to the lower left rope segment (312).

9. The overhaul operation belly belt system for AS332C1 type helicopter according to claim 8, characterized in that, Rope cutting devices (6) are connected to both the upper left rope segment (311) and the upper right rope segment (321). The rope cutting devices (6) are connected to the in-cabin support (1). The rope cutting devices (6) can cut the upper left rope segment (311) and the upper right rope segment (321) and disconnect the insulating rope (3) from the in-cabin support (1).

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