A device for increasing the load capacity of helicopters
By designing a transition beam, the problem of the inability of the general-purpose helicopter hangar beam to connect to new equipment was solved, realizing reliable connection and functional expansion of the equipment, reducing replacement costs, and featuring a simple structure and efficient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORTHWEST IND GRP CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
The existing universal mounting beams for helicopters cannot meet the connection requirements of new equipment, and a special adapter beam needs to be designed to achieve a reliable connection.
Design a transition beam, including a beam body, a hook device, a lifting lug device, and a limiting device, to achieve a reliable connection between the universal hanger beam for the carrier aircraft and the new equipment through a combination of multiple threads and locating pins.
It achieves a reliable connection between the new equipment and the helicopter, reduces the replacement cost, expands the function and scope of use of the helicopter, and is simple in structure, easy to operate and highly economical.
Smart Images
Figure CN224448164U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of helicopter technology and relates to a device for adding mounting equipment to a certain series of helicopters. Background Technology
[0002] To meet user needs, a certain series of helicopters needs to be equipped with new equipment. After the equipment is installed, the helicopter's uses can be expanded to meet the needs of modern use. Utility Model Content
[0003] The technical problem to be solved and the purpose of this utility model
[0004] A certain carrier aircraft, namely a helicopter, is only equipped with a universal mounting beam, which can be used to mount conventional equipment. Now, based on usage requirements, a new type of equipment needs to be added, but the universal mounting beam cannot meet the requirements. If the new equipment is to be installed, a special adapter beam (hereinafter referred to as the "adapter beam") must be designed and manufactured to achieve a reliable connection between the universal mounting beam and the new equipment (hereinafter referred to as the "equipment").
[0005] In order to solve the above-mentioned technical problems, this utility model provides a device for increasing the equipment mounted on helicopters.
[0006] The technical solution of this utility model is: a device for adding helicopter mounting equipment, including a transition beam, characterized in that the transition beam includes a beam body, a hook device, a lifting lug device, and a limiting device; the hook device consists of a hook nut, a hook seat, and a hook; the external thread of the hook seat is screwed into the internal thread of the beam body, and the hook seat and the hook nut are connected by the inner and outer rings of a ball bearing, allowing them to rotate; the outer circumference of the connecting column at the upper end of the hook has threads, which are threaded to the hook nut; rotating the hook nut enables axial movement of the hook; the axial keyway of the connecting column at the upper end of the hook and the corresponding keyway of the hook seat are engaged by a key. The lifting hook and hook seat can only move axially and cannot rotate. The lifting lug device consists of a lifting lug, a lifting lug nut, and a lifting lug seat. The external thread of the lifting lug seat is screwed into the internal thread of the beam. The lifting lug nut and the lifting lug seat are connected by the inner and outer rings of a ball bearing, allowing them to rotate. The lower end of the lifting lug has threads on its outer circumference, which are threaded to the lifting lug nut. Rotating the lifting lug nut allows the lifting lug to move axially. The axial keyway of the lower end of the lifting lug connects with the corresponding keyway of the lifting lug seat, restricting the lifting lug to move axially relative to the lifting lug seat and preventing it from rotating. The limiting device has an outward V-shaped structure and is located at the bottom of the beam.
[0007] Furthermore, the hook device has two sets, evenly distributed on the beam.
[0008] Furthermore, the lifting lug device has two parts, which are arranged inside the hook device.
[0009] Furthermore, the front protective cover is a triangular shell fixed to the front end of the beam, while the rear protective cover is a shell with a rounded front and a square rear, fixed to the rear end of the beam.
[0010] Furthermore, it also includes a front stop device and a rear stop device; the rear stop device is fixed in a wide groove at the top of the beam; the front stop device is fixed at the top of the beam; the protrusion of the universal hanging beam is embedded in the groove of the rear stop device, thereby restricting the lateral movement of the beam; the protrusion of the front stop device in the groove of the universal hanging beam engages with the front stop device, thereby restricting the longitudinal movement of the beam.
[0011] Furthermore, it also includes a hook safety pin; the hook safety pin also includes a pin body and a rotating locking pin; the rotating locking pin is hinged to the pin body and can rotate to ninety degrees; the hook safety pin is inserted into the beam at the front end of the hook opening.
[0012] Furthermore, the upper end of the transition beam is connected to the general beam, and the upper end of the transition beam is connected to the equipment to be mounted.
[0013] The technical effects of this utility model are:
[0014] 1. By combining multiple threads, positioning pins and other structures, the connection between the carrier's universal hanging beam, transfer beam and equipment is realized. Due to the self-locking property of the threads, the connection between the locked transfer beam and the equipment is reliable. A safety pin is inserted at the hook opening to prevent the equipment from falling off the transfer beam when the carrier makes large-scale maneuvers.
[0015] 2. After testing and demonstration, the helicopter with the added equipment can achieve the expected functions. Only the angle of the limiting device 7 needs to be changed later. It can hang equipment of different diameters, reducing the cost of replacement. 3. The helicopter's own functions and usage range are improved by adding only one adapter beam, which is highly economical.
[0016] 4. Simple, practical, and reliable structure. Easy to operate and highly efficient. Attached Figure Description
[0017] Figure 1 3D schematic diagram of the equipment to be mounted
[0018] Figure 2 3D schematic diagram of the transition beam
[0019] Figure 3 Connection diagram of transition beam and equipment to be mounted
[0020] Figure 4 3D structural diagram of the transition beam
[0021] Figure 5 Schematic diagram of hook device structure
[0022] Figure 63D structural diagram of the beam
[0023] Figure 7 3D structural diagram of the lifting lug device
[0024] Figure 8 3D structural diagram of hook safety pin
[0025] Figure 9 3D structural diagram of the limiting device
[0026] 1: Universal hanging beam plug; 2: Front stop device; 3: Hook device; 4: Lifting lug device; 5: Rear stop device; 6: Plug; 7: Limit device; 8: Hook safety pin; 9: Beam body; 10: Hook nut; 11: Hook seat; 12: Hook; 13: Lifting lug; 14: Lifting lug nut; 15: Lifting lug seat; 16: Rotary locking pin. Detailed Implementation
[0027] This utility model discloses a device for adding helicopter mounting equipment, including a transition beam, which includes a beam body 9, a hook device 3, a lifting lug device 4, and a limiting device 7; it also includes a universal mounting beam plug 1, a front stop device 2, a rear stop device 5, a plug 6, and a hook safety pin 8.
[0028] The function of the transition beam is mainly realized through the following four components: beam body 9, hook device 3, lifting lug device 4, limiting device 7, etc. Figure 4 As shown.
[0029] The hook device 3 consists of a hook nut 10, a hook seat 11, and a hook 12. The external thread of the hook seat 11 is screwed into the internal thread of the beam 9 for fixation. The connection between the hook seat 11 and the hook nut 10 is similar to the inner and outer rings of a ball bearing; they can rotate but cannot move axially. The hook nut 10 and the hook 12 are connected by threads. Rotating the hook nut 10 allows the hook 12 to move axially. The hook 12 has an axial keyway at its thread, and a corresponding locating pin is installed on the hook seat 11, thus restricting the hook 12 to move axially but not rotate. This allows the hook to rise and fall axially relative to the transition beam without rotating. Figure 5 As shown.
[0030] The lifting lug device 4 consists of a lifting lug 13, a lifting lug nut 14, and a lifting lug seat 15. The external thread of the lifting lug seat 15 is screwed into the internal thread of the beam body 9 for fixation. The lifting lug nut 14 and the lifting lug seat 15 are connected by an inner and outer ring similar to a ball bearing; they can rotate but cannot move axially. The lifting lug 13 and the lifting lug nut 14 are connected by threads; rotating the lifting lug nut 14 allows the lifting lug 13 to move axially. The lifting lug 13 has an axial keyway at its thread, and the corresponding part of the lifting lug seat 15 is equipped with a locating pin, thus restricting the lifting lug 13 to only move axially and not rotate. This allows the lifting lug to rise and fall axially relative to the transition beam without rotating. Figure 7As shown.
[0031] The front protective cover is a triangular shell, which is fixed to the front end of the beam 9 with eight screws. The rear protective cover is a shell with a rounded front and a square rear, which is fixed to the rear end of the beam 9 with ten screws.
[0032] The limiting device 7 has an outward V-shaped structure and is located at the bottom of the beam. It is used to lock the equipment and guide it during the equipment mounting process.
[0033] Furthermore, the rear stop device 5 is fixed to the wide groove at the top of the beam 9 by five screws; the front stop device 2 is fixed to the top of the beam 9 by six screws. The protrusion of the universal hanging beam is embedded in the groove of the rear stop device 5, thereby restricting the lateral movement of the beam 9; the protrusion of the front stop device 2 in the groove of the universal hanging beam engages, thereby restricting the longitudinal movement of the beam 9, thus completing the locking.
[0034] The following is the usage process of the adapter beam, a device for adding helicopter mounting equipment according to this utility model:
[0035] When installing the transfer beam on the universal mounting beam of the carrier aircraft, connect the lifting lug device 4 to the universal mounting beam, use a wrench to turn the lifting lug nut 14, the lifting lug nut 14 drives the transfer beam to rise and contact the limit of the universal mounting beam, the rear stop device 5 and the front stop device 2 cooperate to complete the locking, and the transfer beam plug 1 connects to the socket at the corresponding position of the universal mounting beam. The installation of the transfer beam on the universal mounting beam of the carrier aircraft is completed.
[0036] When installing equipment on the transfer beam, the lifting lugs of the equipment to be installed are installed on the transfer beam hook device 3. The two limit devices 7 are used to lock the equipment in an outward V-shape. The hook nut 10 is turned with a wrench, and the hook drives the equipment to rise, thus locking the equipment with the two limit devices 7.
[0037] The hook safety pin 8 is inserted into the beam, and the end of the rotating locking pin 16 is turned 90 degrees vertically to lock the hook safety pin 8. The hook safety pin 8 is located at the front end of the hook opening, thus completing the locking of the equipment and the transfer beam. The plug 6 is connected to the corresponding socket on the equipment to complete the connection between the transfer beam and the equipment, thereby connecting the carrier machine and the equipment.
[0038] The operation process of the transition beam of the present invention is as follows:
[0039] 1) Connect the lifting lug device 4 of the transfer beam to the universal hanging beam of the carrier aircraft;
[0040] 2) Connect the universal hanging beam plug 1;
[0041] 3) Rotate the lifting lug nut 14 to raise the transition beam and lock it with the universal hanging beam;
[0042] 4) Connect the equipment to the hook device 3 of the transfer beam;
[0043] 5) Connect the device plug 6;
[0044] 6) Rotate the hook nut 10 of the hook device to drive the equipment to rise, cooperate with the limit device 7 to lock the equipment, and insert the hook safety pin 8;
[0045] 7) Once the equipment is connected to the carrier, it enters the ready-to-use state.
Claims
1. An apparatus for increasing the load capacity of a helicopter comprising an adapter beam, characterized in that, The transition beam includes a beam body (9), a hook device (3), a lifting lug device (4), and a limiting device (7); The hook device (3) consists of a hook nut (10), a hook seat (11), and a hook (12). The external thread of the hook seat (11) is screwed into the internal thread of the beam (9). The hook seat (11) and the hook nut (10) are connected by the inner and outer rings of a ball bearing, and the two can rotate. The outer circumference of the connecting column at the upper end of the hook (12) has threads, and it is connected to the hook nut (10) by threads. Rotating the hook nut (10) realizes the axial movement of the hook (12). The axial keyway of the connecting column at the upper end of the hook (12) and the corresponding keyway of the hook seat (11) are matched by a key. The hook (12) and the hook seat (11) can only move axially and cannot rotate. The lifting lug device (4) consists of a lifting lug (13), a lifting lug nut (14), and a lifting lug seat (15). The external thread of the lifting lug seat (15) is screwed into the internal thread of the beam body (9). The lifting lug nut (14) and the lifting lug seat (15) are connected by the inner and outer rings of a ball bearing, and can rotate between them. The lower end of the lifting lug (13) has a thread on its outer circumference, which is connected to the lifting lug nut (14) by the thread. Rotating the lifting lug nut (14) realizes the axial movement of the lifting lug (13). The axial keyway of the lower end of the lifting lug (13) and the corresponding keyway of the lifting lug seat (15) are engaged by a key, which restricts the lifting lug (13) to only move axially relative to the lifting lug seat (15) and not to rotate. The limiting device (7) has an outward V-shaped structure and is located at the bottom of the beam.
2. An apparatus for increasing the load carrying capacity of a helicopter as defined in claim 1 wherein, The hook device has two sets, which are evenly distributed on the beam.
3. The apparatus of claim 1, wherein, The lifting lug device (4) has two parts and is arranged inside the hook device (3).
4. The device for increasing helicopter mounting equipment according to claim 1, characterized in that, The front protective cover is a triangular shell fixed to the front end of the beam, while the rear protective cover is a shell with a rounded front and a square rear, fixed to the rear end of the beam.
5. The apparatus of claim 1, wherein, It also includes a front stop and a rear stop; The rear stop device (5) is fixed in the wide groove at the top of the beam (9); the front stop device (2) is fixed at the top of the beam (9); the protrusion of the universal hanging beam is embedded in the groove of the rear stop device (5) to restrict the lateral movement of the beam (9) through the rear stop device (5); the protrusion of the front stop device (2) of the groove of the universal hanging beam is engaged to restrict the longitudinal movement of the beam (9) through the front stop device (2).
6. The apparatus of claim 1, wherein: It also includes a hook safety pin (8); the hook safety pin (8) also includes a pin body and a rotating locking pin (16); the rotating locking pin (16) is hinged to the pin body and can rotate to ninety degrees; the hook safety pin (8) is inserted into the beam at the front end of the hook opening.
7. The apparatus of claim 1, wherein: It also includes a plug; the plug connects to the corresponding socket on the device to be mounted.
8. The apparatus of claim 1, wherein: It also includes a universal hanging beam plug, and an adapter beam plug that connects to the corresponding socket on the universal hanging beam.
9. The device for increasing helicopter mounting equipment according to claim 1, characterized in that, The upper end of the transition beam is connected to the general beam, and the upper end of the transition beam is connected to the equipment to be mounted.
10. The apparatus of claim 1, wherein, The front stop and the rear stop are fixedly connected to the beam body by eight screws respectively.