Low-cost universal tonnage load releasing hanger

Abstract

The invention relates to a low-cost universal tonnage-level load releasing hanger, and solves the problems of low bearing capacity, complex structure, high processing difficulty and high cost of the existing hanger. Comprising a main beam, an auxiliary supporting assembly, a hook assembly, a sliding plate, an explosive bolt and an anti-shear pin. The two ends of the main beam are in sliding connection with the auxiliary supporting assemblies, the upper portion of the main beam is connected with the flying platform through explosive bolts, a sliding plate and a transverse nitrogen spring are installed in the main beam, and the sliding plate is detachably connected with an anti-shear pin fixedly connected to the flying platform. The upper portion of the movable hook is fixedly connected below the sliding plate, a load is hung on a hanging lug on the lower portion of the movable hook, and the movable check block is connected with the fixed hook through a bolt and used for adjusting a gap between the fixed hook and the hanging lug of the movable hook. The device is simple in structure, low in production cost, high in universality, high in load capacity and safe and reliable in separation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of military target range test and measurement, and relates to a design of a load release rack for air dynamic test, which is mainly used for weapon mounting and release in weapon mounting flight test and measurement. BACKGROUND

[0002] Under the background of rapid evolution of current international security situation and war form, the demand for iteration and upgrade of weapon equipment technology of each country continues to rise. In order to accelerate the research and development process and shorten the development cycle, a large number of field dynamic performance verification tests need to be carried out in the research and development stage to ensure the reliability, adaptability and effectiveness of the weapon system. Traditional field tests are high in cost, long in cycle and limited by environmental conditions. Therefore, it is urgent to develop a low-cost, high-reliability and close-to-combat simulation test technology to replace part of the field test, so as to shorten the development cycle and reduce the research and development cost. Air dynamic test is an effective weapon equipment test method, which carries out specific test tasks such as boosting, hanging, air dropping and dynamic explosion through a specially developed test platform, and accurately flies according to the designed mission profile. This method can effectively verify the performance of the weapon system, and is of great significance to reduce the weapon development cost and improve the equipment development efficiency.

[0003] Weapon mounting flight and separation are the main technical paths to realize air dynamic test. Current weapon test flight generally adopts the form of external hanging, which is mainly due to the fact that internal embedding of load increases the difficulty of separation and causes many technical problems such as mutual interference between load and mounting platform. Although external flight reduces the risk of separation, it greatly interferes with the aerodynamic characteristics of the platform, affects the separation window time and separation stability margin. At the same time, the size of the load in external flight should not be too large, which also limits the mounting capacity of the platform. In view of the growing air dynamic test demand of aircraft weapon mounting and its key subsystems, in order to improve the load capacity of the existing air test platform, it is urgent to design and develop a ton-level load release rack with internal load, simple structure, low production cost, strong universality, strong load capacity and safe and reliable separation. SUMMARY

[0004] The present application provides a low-cost universal ton-level load release rack, which solves the problems of weak carrying capacity, complex structure, high processing and production difficulty and high cost of the current rack. After trial production and test, the ton-level load release rack can meet the demand of ton-level load flight test.

[0005] The present application is realized by the following technical solutions: A low-cost universal ton-level load release rack, comprising a main beam 4, an auxiliary support assembly 1, a hook assembly 2, a sliding plate 8, an explosive bolt 3 and a shear pin 5. The main beam 4 is a hollow beam, with both ends slidably connected to the auxiliary support assembly 1. The upper part of the main beam 4 is connected to the flight platform through the explosion bolts 3. The main beam 4 is equipped with a sliding plate 8 and a transverse nitrogen spring. The sliding plate 8 is detachably connected to the anti-shear pin 5 fixed to the flight platform. The transverse nitrogen spring can push the sliding plate 8 to move laterally within the main beam 4. The hook assembly 2 includes a movable hook 23, a movable stop 22, and a fixed hook 21. The fixed hook 21 is fixedly connected to the main beam 4. The upper part of the movable hook 22 is fixedly connected to the lower part of the sliding plate 8. The load is hung on the lug at the lower part of the movable hook 22. The movable stop 22 is connected to the fixed hook 21 by bolts. The fixed hook 21 is equipped with a set screw, which is used to adjust the distance between the movable hook 23 and the fixed hook 21. The movable stop 22 is used to adjust the gap between the lugs of the fixed hook 21 and the movable hook 23.

[0006] The main beam 4 is equipped with longitudinal nitrogen springs 7 at both ends.

[0007] A roller 11 is installed on the inner wall of the main beam 4, and the slide plate 8 can be rolled and supported on the roller 11.

[0008] The main beam 4 shown is equipped with a thrust block 10 and a fixed stop block 9. The thrust block 10 is fixedly connected to the bottom of the slide plate 8, and the fixed stop block 9 is fixedly connected to the main beam 4. A transverse nitrogen spring is installed in the hole of the fixed stop block 9, which can push the thrust block 10 to move laterally within the main beam 4.

[0009] The auxiliary support assembly 1 includes a slide rail 15, a crossbeam 13, and a slider 12. The slide rail 15 is connected to the lower surface of the main beam 4 via the crossbeam 13, and the slider 12 is connected to the crossbeam 13 via a hinge 14. A stop block is installed at the lower end of the slide rail 15 for limiting movement.

[0010] A support screw assembly 6 is installed on the side wall of the main beam 4, including a support leg 63, a clamping screw 64, a ball joint 62, and a support plate 61. The support leg 63 is fixedly connected to the main beam 4. The support plate 61 is in close contact with the load surface during the flight phase to limit the load's rolling displacement. The clamping screw 64 can adjust the support force of the support plate 61 on the load. The ball joint 62 can adjust the contact angle between the support plate 61 and the load.

[0011] The ball joint 62 is a 7.5° ball joint.

[0012] The installation position of the support leg 63 can be adjusted laterally on the crossbeam 13 according to the load shape characteristics.

[0013] The distance between the two movable hooks 23 at both ends of the main beam 4 is 762mm.

[0014] The movable hook 23 can suspend Class III hanging objects.

[0015] This invention employs a segmented separation method to achieve internal load embedding. The structure is simple in design, has strong load-bearing capacity, high separation reliability, and is easy to manufacture. It is versatile and suitable for test-use flight and deployment platforms, reducing the impact of the load on the platform's aerodynamic characteristics, improving the efficiency of aerial dynamic testing, and lowering testing costs. It can also be used for ground equipment mounting tasks, meeting more diverse customer testing requirements. Attached Figure Description

[0016] Figure 1a is a schematic diagram of the structure of the present invention; Among them, 1-Auxiliary support assembly, 2-Hook assembly, 3-Explosion bolt, 4-Main beam, 5-Shear pin, 6-Support screw assembly, 7-Longitudinal nitrogen spring, 8-Slide plate, 9-Fixing block, 10-Thrust block, 11-Roller; Figure 1b is a cross-sectional view of Figure 1a; Among them, 8-slide plate, 9-fixed stop block, 10-thrust block, and 11-roller; Figure 2. Schematic diagram of auxiliary support components; Among them, 11-slide rail, 12-slider, 13-crossbeam, and 14-hinge; Figure 3 Schematic diagram of the support screw assembly; Among them, 61-support plate, 62-ball joint, 63-support leg, 64-clamping screw Figure 4. Schematic diagram of the hook assembly; Among them, 21-fixed hook, 22-movable stop, and 23-movable hook. Detailed Implementation

[0017] As shown in Figures 1-4, the present invention is a low-cost, universal ton-class load-release bracket, which consists of a main beam 4, an auxiliary support assembly 1, a movable hook assembly 2, a support screw assembly 6, a thrust block 10, a fixed stop block 9, a sliding plate 8, an explosion bolt 3, a longitudinal nitrogen spring 7, an anti-shear pin 5, and other auxiliary tooling.

[0018] To address the issues of insufficient load capacity and high production costs caused by externally mounted loads, this invention employs a structural design involving segmented separation, sliding rail deployment, explosive bolt unlocking, and nitrogen springs to provide deployment power. This achieves the technical requirements of internal embedding during the load mounting phase and external separation during the separation phase.

[0019] This invention reduces production material costs by simplifying the hanger structure and optimizing the processing technology. The main beam 4 is made of 100x150mm carbon steel rectangular tubing. The fixing block 9 is welded to the side wall of the main beam. A hole is opened at the bottom of the main beam 4 to install the thrust block 10, the fixing block 9, and the hook assembly 2. A hole is opened on the side to install the support screw assembly 6. The support screw assembly 6 is fixed to the side of the main beam 4 using angle iron. The hook assembly 2 is made of stainless steel, and heat treatment is used to improve its material strength, meeting the strength requirements for tonnage loads while reducing production costs.

[0020] This invention employs a segmented separation method to achieve internal load embedding and resolve the aerodynamic interference problem between external loads and the aircraft. The upper surface of the separation pylon is connected to the inner surface of the flight platform using explosive bolts 3. Upon reaching the separation window, the explosive bolts 3 detonate, separating the pylon from the flight platform, completing the first stage of unlocking and separation. Under the influence of gravity, the pylon slides downward along the slide rail 15, and the load exits the cabin along the slide rail 15. Simultaneously, the shear pin 5 fixed to the flight platform is released from its pin hole, unlocking the lateral displacement constraint of the slide plate 8. The movable hook 23, fixed to the slide plate 8, moves with the slide plate 8, and the load detaches from the lug of the movable hook 23, unlocking and separating, completing the second stage of unlocking and separation.

[0021] The first stage of separation is unlocked using explosive bolts 3, with a longitudinal nitrogen spring 7 providing the separation power. This combination significantly reduces the first-stage separation time and improves the overall separation efficiency. Simultaneously, the impact force of the longitudinal nitrogen spring 7 is linearly adjustable, allowing for customized matching to different load capacities and meeting general-purpose requirements.

[0022] The second stage of separation employs a pin-pulling unlocking method. A transverse nitrogen spring 7 is installed in a fixed stop block 9. This spring, through a pusher block 10 fixed to the sliding plate 8, propels the plate 8 laterally, unlocking the hook and utilizing the load's own weight for separation. After the first stage of separation, the shear pin 5 disengages during the hanger's descent, releasing the transverse displacement constraint of the sliding plate 8. Under the action of the transverse nitrogen spring, the sliding plate 8 slides longitudinally on the surface of the roller 11. The lower end of the sliding plate 8 is fixed to the movable hook 23, allowing the hook to smoothly disengage as the plate 8 slides laterally. The load separates from the hanger under gravity. This unlocking method is simple and highly reliable. The roller 11 under the sliding plate converts sliding friction into rolling friction, preventing the plate from failing to unlock due to excessive load mass. Simultaneously, the roller 11 significantly improves the hanger's load-bearing capacity, meeting the requirements for mounting large-mass loads.

[0023] To ensure the smooth descent of the load out of the platform during the second separation phase, slide rails 15 and sliders 12 are installed around the main beam 4. The slide rails 15 are connected to the lower surface of the main beam 4 via a crossbeam 13, and the sliders 12 are connected to the crossbeam 13 via hinges 14. The hinges 14 effectively improve stability during descent, preventing the sliders 12 and slide rails 15 from jamming due to disturbance. The slide rails 15 are fixed inside the platform cabin and rigidly connected to it. A stop is installed at the lower end of the slide rails 15 to limit the separation point of the sliders 12, preventing the hanger and load from sliding out of the platform simultaneously.

[0024] First, segmented separation allows for the embedding of loads within the platform, meaning that different types of loads have almost no impact on the overall aerodynamic characteristics. This effectively avoids repetitive aerodynamic design work due to inconsistent load types, greatly improving the platform's versatility. Second, the segmented separation method minimizes load separation disturbances, ensuring the flight attitude of the load after separation.

[0025] This invention addresses the lateral swaying problem of ton-class loads during flight by employing a support screw assembly 6 and an auxiliary support assembly 1. The support screw assembly 6 consists of a support leg 63, a clamping screw 64, a 7.5° ball-end joint 62, and a support plate 61. The support leg 63 is fixedly connected to the main beam 4, and its installation position can be adjusted longitudinally along the crossbeam 13 according to the load's shape characteristics. The support plate 61 remains in close contact with the load surface during flight, limiting the load's rolling displacement. The clamping screw 64 adjusts the supporting force exerted by the support plate 61 on the load, and the 7.5° ball-end joint 62 adjusts the contact angle between the support plate 61 and the load, allowing for adjustments to the contact requirements between different load types and the support plate 61 to meet the support conditions of various loads. The auxiliary support assembly 1 consists of a crossbeam 13, a slider 12, and a slide rail 15. The crossbeam 13 is fixedly connected to the lower end of the main beam 4, the slide rail 15 is fixedly connected to the inner side of the flight platform, and the slider 12 is fixedly connected to the crossbeam 13 via a hinge 14. In the second separation stage, the slider 12 falls along the slide rail with the crossbeam 13, ensuring that the load exits the cabin in a stable posture.

[0026] To improve load-bearing capacity and ensure axial stability of the load, the hook assembly 2 consists of a movable hook 23, a fixed hook 21, and a movable stop 22. The movable hook 23 is fixedly connected to the slide plate 8, and the fixed hook 21 is fixedly connected to the main beam 4 of the hanger. The movable stop 22 is bolted to the fixed hook 21. The fixed hook 21 is equipped with a set screw for adjusting the distance between the movable hook 23 and the fixed hook 21. The movable stop 22 can adjust the gap between the lugs of the fixed hook 21 and the movable hook 23 to prevent axial displacement during flight and to meet the needs of different types of lugs. The movable hook 23 and the fixed hook 21 are reinforced with longitudinal stiffeners to improve the rigidity and strength of the hook. The two movable hooks 23 at both ends of the main beam 4 are spaced 762mm apart. The movable hooks 23 can suspend Class III lifting lugs, meeting the requirements of high load design.

[0027] Compared with other rack designs, the advantages of this invention are: 1) A simple and reliable unlocking and separation rack structure is provided.

[0028] 2) A method for separating the load by embedding it inside the platform is provided, which solves the problem of the load's influence on the platform's aerodynamic characteristics.

[0029] 3) A solution is provided that addresses the disturbance problem during the separation of embedded loads. The auxiliary support device and support screw assembly resolve the lateral swaying of the load and the disturbance problem during the separation process.

[0030] 4) The gap between the hook and the lug is adjusted by using the movable stop, which enhances the axial stability of the load, meets the requirements for mounting and separating tonnage loads, and realizes the platform's universal mounting requirements.

Claims

1. A low cost, universal, ton class load release rack characterized by: The utility model provides a kind of flying platform, including main beam, auxiliary support component, hook component, sliding plate, explosive bolt and shear pin;The main beam is hollow beam, and two ends are slidably connected with auxiliary support component, and the upper portion of main beam is connected with flight platform by explosive bolt, and sliding plate and transverse nitrogen spring are installed in main beam, and sliding plate is disconnectably connected with shear pin fixed in flight platform, and transverse nitrogen spring can push sliding plate to move laterally in main beam, hook component includes movable hook, movable stopper and fixed hook, fixed hook is fixedly connected with main beam, and the upper portion of movable hook is fixed below sliding plate, load is hung on the lug of the lower portion of movable hook, movable stopper is connected with fixed hook by bolt, fixed hook is provided with jackscrew, and jackscrew is used to adjust the interval of movable hook and fixed hook, and movable stopper is used to adjust the clearance of lug of fixed hook and movable hook.

2. A low cost universal ton class store separation rack as in claim 1 wherein: Longitudinal nitrogen spring is installed at the two ends of the main beam.

3. A low cost universal ton class store separation rack as in claim 1 wherein: Roller is installed on the inner side wall of the main beam, and sliding plate can be supported on the roller.

4. A low cost universal ton class store separation rack as in claim 1 wherein: Thrust block and fixed stopper are installed in the main beam, thrust block is fixedly connected below sliding plate, fixed stopper is fixedly connected on main beam, and transverse nitrogen spring is installed in the hole of fixed stopper, which can push thrust block to move laterally in main beam.

5. A low cost universal ton class store separation rack as in claim 1, wherein: The auxiliary support component includes slide rail, cross beam and sliding block, the slide rail is connected with the lower surface of the main beam by the cross beam, the sliding block is connected with the cross beam by a hinge, and the stopper is installed at the lower end of the slide rail to limit the position.

6. A low cost universal ton class store separation rack as in claim 1, wherein: Support screw assembly is installed on the side wall of the main beam, including support leg, compression screw, ball head rod end joint and support plate, the support leg is fixedly connected with the main beam, the support plate is tightly attached to the surface of load in flight stage to limit the rolling displacement of load, the compression screw can adjust the support force of support plate acting on load, and the ball head rod end joint can adjust the contact angle of support plate and load.

7. A low cost universal ton class store separation rack as in claim 6 wherein: The ball head rod end joint is a 7.5° ball head rod end joint.

8. A low cost universal ton class store separation rack as in claim 6, wherein: The installation position of the support leg can be adjusted laterally on the cross beam according to the shape characteristics of load.

9. A low cost universal ton class store separation rack as in claim 1 wherein: The interval of the two movable hooks at the two ends of the main beam is 762mm.

10. A low cost universal ton class store separation rack as in claim 1, wherein: The movable hook can hang Ⅲ grade lug suspension.

Images