Propeller suspension device

Abstract

The present application relates to a kind of propeller suspension device, including multiple suspender, multiple suspender support mechanism and controller, suspender support mechanism includes two support seats and locking piece, two support seats have oppositely arranged cambered surface, and the cambered surface of two support seats is locked by locking piece to form the arc-shaped support surface for supporting propeller and with its circumferential arc matching, multiple arc-shaped support surfaces can be installed on ground along the propulsion direction of propeller;Multiple suspender includes high-pressure gas supply assembly, multiple high-pressure air bags and multiple longitudinal section with the arc of arc-shaped support surface matching installation plate, multiple installation plates are installed on arc-shaped support surface along the equidistant in circumference, high-pressure air bag is correspondingly installed on installation plate, and propeller is abutted on high-pressure air bag.The present application provides a kind of propeller suspension device, belongs to space technology technical field, can make propeller suspension, greatly reduce the friction between propeller and outside, improve the precision of test data.

Description

Technical Field

[0001] This invention relates to a propulsion suspension device, belonging to the field of aerospace technology. Background Technology

[0002] Currently, the traditional method for testing the power data of rocket boosters is to mount the rocket booster on a bracket with multiple rollers at the bottom. The front end of the rocket booster is then placed against a data detection device, and power data is collected after ignition. However, due to the heavy weight of the mounting bracket and the friction between the rollers and the bottom surface, the accuracy of the test data is affected.

[0003] Therefore, reducing external forces acting on rocket boosters and improving the accuracy of test data are urgent problems that need to be solved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a thruster levitation device that enables the thruster to levitate, greatly reduces the friction between the thruster and the external environment, and improves the accuracy of test data.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A propeller suspension device includes multiple suspension units, multiple suspension unit support mechanisms, and a controller. Each of the multiple suspension unit support mechanisms includes two support seats and a locking member. The two support seats have opposingly arranged arc surfaces. The two support seats are arranged opposite each other and locked by the locking member so that their arc surfaces meet to form an arc-shaped support surface for supporting the propeller and matching its circumferential curvature. The multiple support seats can be installed on the ground along the propulsion direction of the propeller. The multiple suspension units include a high-pressure air supply assembly, multiple high-pressure airbags, and multiple... A mounting plate with a longitudinal section matching the curvature of the arc-shaped support surface is mounted on the arc-shaped support surface at equal intervals along the circumference. Multiple high-pressure airbags are correspondingly mounted on the mounting plates. The thruster can abut against the multiple high-pressure airbags. Each high-pressure airbag has an air inlet at its bottom and multiple air outlets at its top. The arc surfaces of the mounting plates and the support base have through holes corresponding to the air inlets. The high-pressure air supply assembly is mounted on the support base, and its air delivery end is connected to the multiple air inlets through a high-pressure air pipe. The controller is electrically connected to the high-pressure air supply assembly.

[0006] The beneficial effects of this invention are as follows: Multiple support bases are installed on the ground, and the rocket's thruster is mounted on the arc-shaped support surface and comes into contact with multiple high-pressure airbags. The controller controls the high-pressure gas supply assembly to open. One end of the high-pressure gas pipe is connected to the gas delivery end of the high-pressure gas supply assembly, and the other end passes through the arc surface of the support base and the through hole on the mounting plate to connect with the air inlet, delivering high-pressure gas to the multiple high-pressure airbags. The high-pressure gas is ejected from the air outlets opened on the high-pressure airbags, forming an air membrane between the thruster and the high-pressure airbags, allowing the thruster to suspend on the arc-shaped support surface. This greatly reduces the friction between the thruster and the outside world when it moves, improving the accuracy of test data. The longitudinal section of the mounting plate matches the curvature of the arc-shaped support surface, and thus matches the circumferential curvature of the thruster, ensuring that the thruster remains balanced when suspended.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the suspender also includes fasteners to prevent excessive deformation of the high-pressure airbag. The fasteners are fixed at the top center of the high-pressure airbag, and the fasteners have multiple vent holes corresponding to the multiple air outlets.

[0009] The beneficial effects of adopting the above-mentioned further solutions are: increasing the strength of the high-pressure airbag, reducing its deformation, ensuring that the air outlet direction remains unchanged, and improving the stability during suspension.

[0010] Furthermore, the fastener is a high-strength rubber sheet.

[0011] The advantages of adopting the above-mentioned further solution are: flexible material, easy to fit with the surface of high-pressure airbag, and simple and convenient processing.

[0012] Furthermore, the multiple air vents corresponding to the fastener are first air vents, and the multiple first air vents are distributed in a concentric circle array.

[0013] Furthermore, the vent holes distributed around the fastener are second vent holes, and the plurality of second vent holes are distributed at equal angles.

[0014] Furthermore, the mounting plate has multiple mounting holes, and the arc surface of the support base has multiple threaded holes corresponding to the mounting holes. Multiple bolts pass through the mounting holes and the threaded holes to fix the mounting plate to the support base.

[0015] Furthermore, the suspension support mechanism also includes a fixed plate and two tracks. The fixed plate can be fixed to the ground, the two tracks are installed parallel to each other on the fixed plate, and the two support seats are correspondingly arranged and slidably connected to the tracks.

[0016] Furthermore, the suspension support mechanism also includes two cylinders, which are fixed to both sides of the fixed plate and their telescopic rods are fixedly connected to the two support seats respectively. The controller is electrically connected to the two cylinders respectively.

[0017] The advantages of adopting the above-mentioned further solution are: the support base is slidably connected to the track, and the two cylinders drive the two support bases to move, which facilitates docking during work and separation after work, making it convenient for the work crew to pass through.

[0018] Furthermore, the locking component includes two connecting shafts, two fixing pins, and two hooks. The two connecting shafts are fixed to both sides of one of the support seats, the two fixing pins are fixed to both sides of the other support seat, and one end of each of the two hooks is rotatably connected to the two fixing pins and can be rotatably hooked onto the corresponding connecting shaft to lock the two support seats.

[0019] Furthermore, the high-pressure air supply assembly includes an air compressor and a constant pressure device. The air compressor's air delivery end is connected to multiple air inlets via a high-pressure air pipe. The constant pressure device is installed in the high-pressure air pipe. The controller is electrically connected to the constant pressure device and the air compressor, respectively. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a thruster suspension device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the propeller suspension device of the present invention from another angle;

[0022] Figure 3 This is a schematic diagram of the structure of the suspender in a thruster suspending device according to the present invention;

[0023] Figure 4 for Figure 3 Top view;

[0024] Figure 5 for Figure 4 A cross-sectional view along the AA direction;

[0025] Figure 6 This is a schematic diagram of the hook structure in the suspender of a thruster suspending device according to the present invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1-Suspension support mechanism, 11-Support base, 12-Locking component, 121-Connecting shaft, 122-Fixing pin, 123-Hook, 13-Cylinder, 14-Arc surface, 15-Fixing plate, 16-Railway, 2-Arc-shaped notch, 3-Suspension device, 31-High-pressure airbag, 311-Second air outlet, 32-Mounting plate, 321-Mounting hole, 33-Fastener, 331-Ventilation hole. Detailed Implementation

[0028] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0029] The purpose of this invention is to provide a thruster levitation device to solve the problems existing in the prior art, which enables the thruster to levitate, greatly reduces the friction between the thruster and the external environment, and improves the accuracy of test data.

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] This invention provides a propeller levitation device, such as... Figures 1-6 As shown, the device includes multiple hovering devices 3, multiple hovering device support mechanisms 1, and a controller. Each hovering device support mechanism 1 includes two support seats 11 and a locking element 12. The two support seats 11 have opposingly arranged arc surfaces 14. The two support seats 11 are arranged opposite each other and locked by the locking element 12 so that their arc surfaces 14 align to form an arc-shaped support surface that supports the thruster and matches its circumferential curvature. The multiple support seats 11 can be installed on the ground along the thruster's propulsion direction. The multiple hovering devices 3 include a high-pressure air supply assembly, multiple high-pressure airbags 31, and multiple longitudinal sections and... The arc of the arc-shaped support surface is matched with the mounting plate 32. Multiple mounting plates 32 are installed on the arc-shaped support surface at equal intervals along the circumference. Multiple high-pressure airbags 31 are installed on the multiple mounting plates 32. The thruster can abut against the multiple high-pressure airbags 31. The bottom of the high-pressure airbag 31 has an air inlet and the top has multiple air outlets. The mounting plate 32 and the arc surface 14 of the support base 11 are provided with through holes corresponding to the air inlets. The high-pressure air supply component is installed on the support base 11 and its air supply end is connected to the multiple air inlets through a high-pressure air pipe. The controller is electrically connected to the high-pressure air supply component.

[0032] The levitation device for a rocket thruster provided by this invention has multiple support bases installed on the ground. The rocket thruster is mounted on an arc-shaped support surface and abuts against multiple high-pressure airbags 31. A controller controls the high-pressure gas supply assembly to open. One end of the high-pressure gas pipe is connected to the gas delivery end of the high-pressure gas supply assembly, and the other end passes through the arc surface 14 of the support base 11 and the through hole on the mounting plate 32 to connect with the air inlet, delivering high-pressure gas to the multiple high-pressure airbags 31. The high-pressure gas is ejected from the air outlets opened on the high-pressure airbags 31, forming an air membrane between the thruster and the high-pressure airbags 31, allowing the thruster to levitate on the arc-shaped support surface. This greatly reduces the friction between the thruster and the outside world when it moves, improving the accuracy of test data. The longitudinal section of the mounting plate 32 matches the curvature of the arc-shaped support surface, and thus matches the circumferential curvature of the thruster, ensuring that the thruster remains balanced when levitating.

[0033] Preferably, the arc-shaped support surface is an arc-shaped notch 2.

[0034] In one specific embodiment of the present invention, the suspender 3 further includes a fastener 33 to prevent excessive deformation of the high-pressure airbag 31. The fastener 33 is fixed at the top center of the high-pressure airbag 31, and the fastener 33 has multiple ventilation holes 331 corresponding to multiple air outlets.

[0035] Increase the strength of the high-pressure airbag 31, reduce its deformation, ensure that the air outlet direction remains unchanged, and improve the stability during suspension.

[0036] In one specific embodiment of the present invention, the fastener 33 is a high-strength rubber sheet.

[0037] The flexible material is easy to fit onto the surface of the high-pressure airbag 31, and the processing is simple and convenient.

[0038] In one specific embodiment of the present invention, the multiple vent holes corresponding to the fastener 33 are first vent holes, and the multiple first vent holes are distributed in a concentric circle array.

[0039] In one specific embodiment of the present invention, the vent holes distributed around the fastener 33 are second vent holes 311, and the multiple second vent holes 311 are distributed at equal angles.

[0040] Through mathematical calculations, fluid mechanics, and related formulas, a functional relationship exists between the smoothness of the propeller surface and the number and diameter of the first and second vent holes 311. When the propeller surface is smooth, it adheres tightly to the high-strength rubber sheet, resulting in a relatively smaller number of first and second vent holes 311 and a larger diameter. Conversely, when the propeller surface is rough, the number of first and second vent holes 311 increases, and the diameter decreases.

[0041] In one specific embodiment of the present invention, the mounting plate 32 is provided with a plurality of mounting holes 321, and the support base 11 has a plurality of threaded holes corresponding to the plurality of mounting holes 321 on the arc surface 14 position. A plurality of bolts pass through the mounting holes 321 and the threaded holes to fix the mounting plate 32 on the support base 11.

[0042] In one specific embodiment of the present invention, the suspender support mechanism 1 further includes a fixed plate 15 and two tracks 16. The fixed plate 15 can be fixed on the ground, and the two tracks 16 are installed in parallel on the fixed plate 15. The two support seats 11 are correspondingly arranged and slidably connected on the tracks 16.

[0043] In a specific embodiment of the present invention, the suspension support mechanism 1 further includes two cylinders 13, which are fixed on both sides of the fixing plate 15 and their telescopic rods are fixedly connected to the two support seats 11 respectively. The controller is electrically connected to the two cylinders 13 respectively.

[0044] The support base 11 is slidably connected to the track 16. Two cylinders 13 drive the two support bases 11 to move, which facilitates docking during work and separation after work, making it convenient for workers to pass through.

[0045] In one specific embodiment of the present invention, the locking member 12 includes two connecting shafts 121, two fixing pins 122 and two hooks 123. The two connecting shafts 121 are fixed on both sides of one support base 11, the two fixing pins 122 are fixed on both sides of another support base 11, and one end of the two hooks 123 is rotatably connected to the two fixing pins 122 and can be rotatably hooked onto the corresponding connecting shafts 121 to lock the two support bases 11.

[0046] In one specific embodiment of the present invention, the high-pressure air supply assembly includes an air compressor and a constant pressure device. The air compressor's air delivery end is connected to multiple air inlets through a high-pressure air pipe. The constant pressure device is installed in the high-pressure air pipe. The controller is electrically connected to the constant pressure device and the air compressor, respectively.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A thruster levitation device, characterized by, The application relates to a propeller suspension device, which comprises a plurality of suspensions (3) and a plurality of suspension support mechanisms (1), each of the plurality of suspension support mechanisms (1) comprises two support bases (11) and a locking piece (12), the two support bases (11) are oppositely arranged and have arc surfaces (14), the two support bases (11) are oppositely arranged and locked by the locking piece (12) to make the arc surfaces (14) of the two support bases (11) match to form an arc-shaped support surface for supporting the propeller and matching the circumferential arc of the propeller, and the plurality of support bases (11) can be installed on the ground along the propelling direction of the propeller. The plurality of suspensions (3) comprise a high-pressure air supply assembly, a plurality of high-pressure air bags (31) and a plurality of installation plates (32) matching the arc of the arc-shaped support surface in the longitudinal section, the plurality of installation plates (32) are installed on the arc-shaped support surface at equal intervals in the circumferential direction, the plurality of high-pressure air bags (31) are correspondingly installed on the plurality of installation plates (32), the propeller can abut against the plurality of high-pressure air bags (31), the bottom of the high-pressure air bag (31) is provided with an air inlet, the top of the high-pressure air bag (31) is provided with a plurality of air outlets, the installation plate (32) and the arc surface (14) of the support base (11) are provided with through holes corresponding to the air inlet, and the high-pressure air supply assembly is installed on the support base (11) and the gas conveying end of the high-pressure air supply assembly is communicated with the plurality of air inlets through a high-pressure air pipe. A controller is electrically connected with the high-pressure air supply assembly. The suspension (3) further comprises a fastener (33) for preventing the high-pressure air bag (31) from being deformed too much, the fastener (33) is fixed at the central position of the top of the high-pressure air bag (31), and the fastener (33) is provided with a plurality of air vent holes (331) corresponding to the plurality of air outlets. The suspension support mechanism (1) further comprises a fixing plate (15) and two tracks (16), the fixing plate (15) can be fixed on the ground, the two tracks (16) are installed on the fixing plate (15) in parallel, and the two support bases (11) are correspondingly arranged and slidably connected on the tracks (16). The suspension support mechanism (1) further comprises two air cylinders (13), the two air cylinders (13) are correspondingly fixed on the two sides of the fixing plate (15) and the telescopic rods of the two air cylinders (13) are fixedly connected with the two support bases (11) respectively, and the controller is electrically connected with the two air cylinders (13) respectively. The fastener (33) is a high-strength rubber sheet.

2. A thruster levitation device according to claim 1, wherein The plurality of air outlets corresponding to the fastener (33) are first air outlets, and the plurality of first air outlets are arranged in a concentric circular array.

3. A thruster levitation device according to claim 1, wherein The air outlets distributed on the periphery of the fastener (33) are second air outlets (311), and the plurality of second air outlets (311) are distributed at equal angles.

4. A thruster levitation device according to claim 3, wherein A plurality of mounting holes (321) are formed in the installation plate (32), a plurality of threaded holes are formed in the arc surface (14) of the support base (11) corresponding to the plurality of mounting holes (321), and a plurality of bolts pass through the mounting holes (321) and the threaded holes to fix the installation plate (32) on the support base (11).

5. A thruster levitation device according to claim 1, wherein ​ 6. A thruster levitation device according to claim 1, wherein The locking piece (12) comprises two connecting shafts (121), two fixing pins (122) and two clamps (123), the two connecting shafts (121) are fixed on the two sides of one of the support seats (11), the two fixing pins (122) are fixed on the two sides of the other support seat (11), and one end of the two clamps (123) is rotatably connected to the two fixing pins (122) and rotatably hooked on the corresponding connecting shaft (121) to lock the two support seats (11).

7. A thruster levitation device according to claim 1, wherein The high-pressure gas supply assembly comprises an air compressor and a constant pressure device, the air outlet of the air compressor is communicated with a plurality of air inlets through a high-pressure gas pipe, and the constant pressure device is installed on the high-pressure gas pipe; the controller is electrically connected with the constant pressure device and the air compressor respectively.

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