Aero-engine damping support
By using an L-shaped base bracket and various vibration reduction measures, the problem that existing aero-engine vibration damping brackets cannot effectively absorb horizontal impact loads has been solved, achieving efficient vibration reduction and lightweight design, and improving the engine's operational reliability and ease of maintenance.
Patent Information
- Application Number
- CN202520757237.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-21
AI Technical Summary
Existing aircraft engine shock absorber brackets cannot effectively absorb horizontal impact loads between the engine and the suspension beam under complex operating conditions, leading to damage to the shock absorbers and affecting the reliability of engine operation.
It adopts an L-shaped base bracket design, combined with multiple shock-absorbing pads, buffer rings and airbag sleeves. The L-shaped structure increases the ability to absorb lateral and longitudinal vibrations, and the weight-reducing holes reduce weight and simplify the maintenance process.
It effectively absorbs lateral and longitudinal vibrations of aero engines, enhances vibration reduction, supports complex operating conditions, reduces support weight, simplifies maintenance, and improves engine reliability.
Smart Images
Figure CN223919577U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to aero-engine technical field especially relates to a aero-engine damping support. BACKGROUND
[0002] The aero-engine is the power source of the oil-driven unmanned helicopter and is an important component of the oil-driven unmanned helicopter. The engine generates high-frequency vibration during operation, and a damping system is needed to prevent the frame and the engine from vibrating. Generally, a damping pad is installed between the engine support foot and the frame to absorb energy and reduce vibration. The traditional damping scheme is still the mainstream, and the aero-engine damping frame is composed of an aluminum or steel damping plate, a damping pad, and a support on the aircraft. The damping pad is arranged on the damping plate, and the damping plate is connected to the support. The vibration generated by the engine during operation is only responsible for absorbing the impact force by the damping pad, which is not efficient and has a heavy weight.
[0003] The traditional aero-engine damping support structure is complex. In order to achieve the damping effect, complex structure components are used, which occupies valuable space in the limited cabin, and it is not convenient to maintain and replace the rubber pad. The existing shock absorber design mainly absorbs the impact load in the vertical direction by setting rubber pads on the support seat. This makes the shock absorber effective in dealing with the up-down vibration between the engine and the suspension beam. However, during operation, especially under complex working conditions, the engine and the suspension beam will also produce horizontal impact load. The existing shock absorber cannot effectively absorb this horizontal impact load, which may cause damage to the shock absorber, thereby affecting the reliability of the engine operation. Therefore, an aero-engine damping support is proposed to solve the above problems. SUMMARY
[0004] The utility model discloses an aero-engine damping support to solve the problems existing in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] An aero-engine damping support, comprising an L-shaped base support, a plurality of lightening holes are arranged on the vertical section and the horizontal section of the L-shaped base support, locking bolts are inserted into the inner walls of the vertical section of the L-shaped base support on both sides, organism fixing bolts are inserted into the inner walls of the horizontal section of the L-shaped base support on both sides, the threaded ends of each locking bolt are located outside the outer wall of the vertical section of the L-shaped base support, and the threaded ends of the locking bolts are sequentially sleeved with third damping washers and third metal washers from inside to outside in the circumferences, the ends of each organism fixing bolt are located outside the outer wall of the horizontal section of the L-shaped base support, first metal washers, first damping washers and second damping washers are sequentially sleeved with the organism fixing bolts from top to bottom in the circumferences, the first metal washers and the first damping washers are located at the top end of the inner wall of the horizontal section of the L-shaped base support, the second damping washers are located at the bottom end of the outer wall of the horizontal section of the L-shaped base support, two-way telescopic sleeves are arranged at the bottom end of the outer wall of the horizontal section of the L-shaped base support on both sides, a first connecting rod is slidingly sleeved with the vertical section of the two-way telescopic sleeve, a second connecting rod is slidingly sleeved with the horizontal section of the two-way telescopic sleeve, a buffer ring is fixedly installed between the two first connecting rods, and an air bag sleeve is fixedly installed between the two second connecting rods.
[0007] Preferably, threaded holes are arranged at the outer walls of the horizontal section of the L-shaped base support on both sides, a connecting screw rod is fixedly connected to the top end of each two-way telescopic sleeve, and the threaded holes in each row are matched with the connecting screw rod.
[0008] Preferably, a threaded groove is arranged at the top end of the organism fixing bolt.
[0009] Preferably, the air bag sleeve is located at the lower end of the outer side of the vertical section of the L-shaped base support, the buffer ring is located at the bottom end of the outer side of the horizontal section of the L-shaped base support, and the ends of the buffer ring on both sides are located between the two second damping washers.
[0010] Preferably, the buffer ring is elliptical.
[0011] Preferably, the air bag sleeve comprises a rubber frame, and rectangular plates are fixedly installed at both ends of the rubber frame, a plurality of first buffer balls are fixedly connected to the outer side of one of the rectangular plates, and a plurality of second buffer balls are fixedly connected to the outer side of the other rectangular plate.
[0012] Preferably, the plurality of first buffer balls and the plurality of second buffer balls are staggered, and the opposite ends of the plurality of first buffer balls and the plurality of second buffer balls are in communication with the rubber frame.
[0013] The aero-engine damping support has the advantages that:
[0014] 1. The utility model proposes an aero-engine damping support, third damping gasket and third metal gasket are evenly arranged on both sides of vertical section of L type base support, first metal gasket, first damping gasket and second damping gasket are arranged on both sides of horizontal section of L type base support, owing to the base support design of L type structure, increase horizontal gasket installation position, make support horizontal longitudinal all can absorb vibration, filter high frequency vibration as low frequency vibration, and locking bolt and body fixing bolt only occupy very little cabin space, simple and easy maintenance engine damping base, through the outer wall bottom end of horizontal section of L type base support both sides sets up two -way telescopic sleeve, and two -way telescopic sleeve vertical section sets up buffer ring, two -way telescopic sleeve horizontal section sets up air bag cover, can further make support filter absorption aero-engine horizontal longitudinal vibration, strengthen the damping effect of support, support more complex working condition.
[0015] 2. The utility model proposes an aero-engine damping support, a plurality of lightening holes are arranged on the vertical section and the horizontal section of the L-shaped base support, which helps to reduce the weight of the L-shaped base support, and the buffer ring is oval, the air bag cover includes a rubber frame, a plurality of first buffer balls and a plurality of second buffer balls are connected to the rubber frame at opposite ends, and the weight of the L-shaped base support is further reduced.
[0016] 3. The utility model proposes an aero-engine damping support, the air bag cover includes a rubber frame, a rectangular plate, a plurality of first buffer balls, and a plurality of second buffer balls, and the plurality of first buffer balls and the plurality of second buffer balls are arranged alternately, and the opposite ends of the plurality of first buffer balls and the plurality of second buffer balls are connected to the rubber frame, which can effectively filter and absorb the horizontal vibration of the support, and can also buffer the horizontal impact load when facing complex working conditions. DRAWINGS
[0017] Figure 1 The utility model proposes an aero-engine damping support structure diagram;
[0018] Figure 2 The utility model proposes an aero-engine damping support left view structure diagram;
[0019] Figure 3 The utility model proposes an aero-engine damping support L-shaped base support bottom view structure diagram;
[0020] Figure 4 The utility model proposes an aero-engine damping support air bag cover structure diagram.
[0021] In the figure: 1L type base support, 2 lightening hole, 3 first shock pad, 4 first metal pad, 5 body fixing bolt, 6 second shock pad, 7 third shock pad, 8 third metal pad, 9 locking bolt, 10 threaded hole, 11 two-way telescopic sleeve, 12 first connecting rod, 13 buffer ring, 14 second connecting rod, 15 air bag sleeve, 16 rectangular plate, 17 rubber frame, 18 first buffer ball, 19 second buffer ball, 20 connecting screw rod. DETAILED DESCRIPTION
[0022] REFERENCE Figures 1-4 An aero-engine damping support, comprising an L-shaped base support 1, the vertical section and the horizontal section of the L-shaped base support 1 are provided with a plurality of lightening holes 2, locking bolts 9 are inserted into the inner walls of the vertical section of the L-shaped base support 1 on both sides, body fixing bolts 5 are inserted into the inner walls of the horizontal section of the L-shaped base support 1 on both sides, the threaded ends of each locking bolt 9 are located outside the outer wall of the vertical section of the L-shaped base support 1, and the threaded ends of the locking bolts 9 are sequentially sleeved with third shock pads 7 and third metal pads 8 from inside to outside in the circumference, the ends of each body fixing bolt 5 are located outside the outer wall of the horizontal section of the L-shaped base support 1, the body fixing bolts 5 are sequentially sleeved with first metal pads 4, first shock pads 3 and second shock pads 6 from top to bottom in the circumference, and the first metal pads 4 and the first shock pads 3 are located at the top end of the inner wall of the horizontal section of the L-shaped base support 1, the second shock pads 6 are located at the bottom end of the outer wall of the horizontal section of the L-shaped base support 1, two-way telescopic sleeves 11 are arranged at the bottom end of the outer wall of the horizontal section of the L-shaped base support 1 on both sides, the first connecting rods 12 are slidably sleeved with the vertical sections of the two-way telescopic sleeves 11, the second connecting rods 14 are slidably sleeved with the horizontal sections of the two-way telescopic sleeves 11, the buffer ring 13 is fixedly installed between the two first connecting rods 12, and the air bag sleeve 15 is fixedly installed between the two second connecting rods 14.
[0023] In the utility model, the outer wall of the horizontal section of the L-shaped base support 1 is provided with threaded holes 10 on both sides, each two-way telescopic sleeve 11 is fixedly connected with a connecting screw rod 20 at the top end, and the threaded holes 10 and the connecting screw rod 20 in each row are matched;
[0024] The top end of the body fixing bolt 5 is provided with a threaded groove;
[0025] The air bag sleeve 15 is located at the lower end of the outer side of the vertical section of the L-shaped base support 1, the buffer ring 13 is located at the bottom end of the outer side of the horizontal section of the L-shaped base support 1, and the ends of the buffer ring 13 are located between the two second shock pads 6 on both sides;
[0026] The buffer ring 13 is elliptical;
[0027] The air bag sleeve 15 comprises a rubber frame 17, and the rubber frame 17 is fixedly installed with rectangular plates 16 at both ends, one of the rectangular plates 16 is fixedly connected with a plurality of first buffer balls 18 outside, and the other rectangular plate 16 is fixedly connected with a plurality of second buffer balls 19 outside.
[0028] The plurality of first buffer balls 18 and the plurality of second buffer balls 19 are arranged alternately, and opposite ends of the plurality of first buffer balls 18 and the plurality of second buffer balls 19 are communicated with the rubber frame 17.
[0029] Working principle: the third damping gasket 7 and the third metal gasket 8 are arranged on both sides of the vertical section of the L-shaped base support 1, the first metal gasket 4, the first damping gasket 3 and the second damping gasket 6 are arranged on both sides of the horizontal section of the L-shaped base support 1, due to the design of the L-shaped base support, the transverse gasket mounting position is increased, so that the support can absorb vibration in the transverse and longitudinal directions, filter high-frequency vibration into low-frequency vibration, and the locking bolt 9 and the engine body fixing bolt 5 only occupy a small amount of engine compartment space, the engine damping base is simple and easy to maintain, the bidirectional telescopic sleeve 11 is arranged on the bottom end of the outer wall of the horizontal section of the L-shaped base support 1, the bidirectional telescopic sleeve 11 is provided with the buffer ring 13 on the vertical section, and the air bag sleeve 15 is arranged on the horizontal section of the bidirectional telescopic sleeve 11, which can further filter and absorb the transverse and longitudinal vibration of the aircraft engine, and strengthen the damping effect of the support, and support more complex working conditions;
[0030] The vertical section and the horizontal section of the L-shaped base support 1 are provided with a plurality of lightening holes 2, which helps to reduce the weight of the L-shaped base support 1, the buffer ring 13 is oval, the air bag sleeve 15 comprises the rubber frame 17, and opposite ends of the plurality of first buffer balls 18 and the plurality of second buffer balls 19 are communicated with the rubber frame 17, which further reduces the weight of the L-shaped base support 1;
[0031] The air bag sleeve 15 comprises the rubber frame 17, the rectangular plate 16, the plurality of first buffer balls 18 and the plurality of second buffer balls 19, the plurality of first buffer balls 18 and the plurality of second buffer balls 19 are arranged alternately, and opposite ends of the plurality of first buffer balls 18 and the plurality of second buffer balls 19 are communicated with the rubber frame 17, which can effectively filter and absorb the transverse vibration of the support, and also can buffer the transverse impact load when facing complex working conditions.
[0032] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. An aeroengine vibration mounting comprising an L-shaped base mount (1) characterised in that, The L-shaped base support (1) vertical section and horizontal section are provided with a plurality of lightening holes (2), the L-shaped base support (1) vertical section inner wall both sides are inserted with locking bolts (9), the L-shaped base support (1) horizontal section inner wall both sides are inserted with organism fixing bolts (5), each locking bolt (9) threaded end is located at the outside of the L-shaped base support (1) vertical section outer wall, and the locking bolt (9) threaded end circumference is sequentially sleeved with third shock pad (7) and third metal pad (8) from inside to outside, each organism fixing bolt (5) end is located at the outside of the L-shaped base support (1) horizontal section outer wall, and the organism fixing bolt (5) circumference is sequentially sleeved with first metal pad (4), first shock pad (3) and second shock pad (6) from top to bottom, and the first metal pad (4) and first shock pad (3) are located at the top end of the L-shaped base support (1) horizontal section inner wall, and the second shock pad (6) is located at the bottom end of the L-shaped base support (1) horizontal section outer wall, the L-shaped base support (1) horizontal section outer wall bottom end both sides are provided with bidirectional telescopic sleeve (11), and the bidirectional telescopic sleeve (11) vertical section is sleeved with first connecting rod (12) slidingly, and the bidirectional telescopic sleeve (11) horizontal section is sleeved with second connecting rod (14) slidingly, the buffer ring (13) is fixedly installed between the two first connecting rods (12), and the air bag sleeve (15) is fixedly installed between the two second connecting rods (14).
2. An aeroengine vibration mounting according to claim 1, wherein, The L-shaped base support (1) horizontal section outer wall both sides are provided with threaded holes (10), each bidirectional telescopic sleeve (11) top end is fixedly connected with connecting screw (20), and each column of threaded holes (10) is matched with the connecting screw (20).
3. An aeroengine vibration mount according to claim 1, wherein, The organism fixing bolt (5) top end is provided with a threaded groove.
4. The aircraft engine vibration mount of claim 1, wherein, The air bag sleeve (15) is located at the lower end of the L-shaped base support (1) vertical section outer side, the buffer ring (13) is located at the bottom end of the L-shaped base support (1) horizontal section outer side, and the buffer ring (13) both ends are located between the two second shock pads (6).
5. An aeroengine vibration mount according to claim 1, wherein, The buffer ring (13) is elliptical.
6. An aircraft engine vibration mount as set forth in claim 1 wherein, The air bag sleeve (15) comprises a rubber frame (17), and the rubber frame (17) both ends are fixedly installed with a rectangular plate (16), one of the rectangular plates (16) outer side is fixedly connected with a plurality of first buffer balls (18), and the other rectangular plate (16) outer side is fixedly connected with a plurality of second buffer balls (19).
7. An aeroengine vibration mount according to claim 6, wherein, A plurality of first buffer balls (18) and second buffer balls (19) are staggered, and a plurality of first buffer balls (18) and a plurality of second buffer balls (19) opposite ends are connected with the rubber frame (17).