Propeller elastic mounting device

Abstract

The propeller elastic mounting device comprises a mounting base, a damping groove is formed in the mounting base, a buffer plate is movably connected to the interior of the damping groove through a damping mechanism, and a rotating disc is rotationally connected to the top of the buffer plate through a rotating assembly; a primary fixing structure is formed by the first threaded sleeve, the second threaded sleeve and the positioning nut, a secondary reinforcing structure is formed by the locking ring, the fastening bolt, the clamping plate and the fastening nut, and firm installation of the propeller body is jointly achieved; the motor, the worm, the worm gear and the rotating shaft form a rotation adjusting structure, and accurate adjustment and stable positioning in the propelling direction are achieved. The sliding rod, the connecting base, the connecting rod, the damping shock absorption spring, the guide groove, the guide rod, the guide plate and the rubber elastic body form a composite shock absorption structure, vibration energy is absorbed and attenuated, vibration transmission is reduced, and finally the effects that the propeller is stable in installation, flexible in steering and small in vibration influence are achieved.

Description

Technical Field

[0001] This invention relates to the field of propeller installation technology, specifically to a flexible propeller installation device. Background Technology

[0002] Marine propulsion refers to the energy converter in a ship's propulsion system. It transforms the power generated by the engine into the thrust that propels the ship forward, overcoming the resistance of the water. The most common marine propulsion is the propeller, but there are also paddle wheels, waterjet propulsion, jet propulsion, duct propulsion, and cyclone propulsion.

[0003] Currently, ship propellers are mostly installed using a single threaded connection or a simple bracket fixing structure. These structures can only achieve basic propeller installation, but cannot meet the stability requirements of complex navigation environments. When the propeller is running at high speed, it is prone to loosening or even displacement due to the impact of water flow and its own power fluctuations, directly threatening navigation safety. Furthermore, the vibration generated by the propeller operation is directly transmitted to the hull through the mounting base, causing fatigue damage to the hull structure, as well as noise pollution, affecting the service life of the equipment and navigation comfort.

[0004] Therefore, developing a flexible mounting device that can achieve stable installation of the propeller, flexible adjustment of the propulsion direction, and effective vibration reduction has become the key to solving the current problems in the application of ship propellers. Summary of the Invention

[0005] The purpose of this invention is to provide a flexible mounting device for a thruster to solve the problems existing in the operation of the existing device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a propeller elastic mounting device, including a mounting base, wherein a shock-absorbing groove is provided inside the mounting base, a buffer plate is movably connected inside the shock-absorbing groove through a shock-absorbing mechanism, a turntable is rotatably connected to the top of the buffer plate through a rotating assembly, a support frame is fixedly connected to the top of the turntable, a mounting hole is provided inside the support frame, and a propeller body is threadedly connected inside the mounting hole through a sleeve. The shock absorption mechanism includes slide rods installed on both sides inside the shock absorption groove and first connecting seats installed at the four corners of the bottom of the buffer plate. Second connecting seats are movably connected to both sides of the slide rods. A connecting rod is hinged to the top of the second connecting seat. The other end of the connecting rod is hinged to the first connecting seat. A damping shock absorption spring is provided on the outer surface of the slide rod between the two second connecting seats. Both sides of the buffer plate are movably connected to the mounting base through guide components.

[0007] Furthermore, the guiding mechanism includes a guide groove formed on the top of the shock-absorbing base, a guide rod fixedly connected to the bottom of the inner cavity of the guide groove, a guide plate movably connected to the outer surface of the guide rod, and the other end of the guide plate fixedly connected to the buffer plate.

[0008] Furthermore, a rubber elastomer is provided on the outer surface of the guide rod located below the guide plate.

[0009] Furthermore, the sleeve component includes a first threaded sleeve fixedly installed on the outer surface of the propeller body, and a second threaded sleeve is fixedly connected to one side of the first threaded sleeve.

[0010] Furthermore, the external threads on the outer surfaces of the first and second threaded sleeves are in opposite directions.

[0011] Furthermore, the inner wall of the mounting hole is provided with an internal thread that is compatible with the first threaded sleeve, and the outer surface of the second threaded sleeve is threaded with a positioning nut.

[0012] Furthermore, a locking ring is fixedly connected to the side of the support frame away from the positioning nut. The locking ring has multiple sets of through holes inside, and fastening bolts are movably connected inside the through holes. One side of the fastening bolt extends into the interior of the locking ring and is fixedly connected to a clamping plate. A fastening nut is threadedly connected to the outer surface of the fastening bolt outside the locking ring.

[0013] Furthermore, an anti-slip sleeve is fixedly connected to one side of the clamping plate that is close to the main body of the thruster.

[0014] Furthermore, the rotating assembly includes a motor mounted on the side of the buffer plate, the output end of the motor extending into the interior of the buffer plate and connected to a worm gear, a worm wheel meshing with one side of the worm gear, a rotating shaft fixedly connected inside the worm wheel, the bottom of the rotating shaft being rotatably connected to the bottom of the inner cavity of the buffer plate, and the top of the rotating shaft being fixedly connected to the bottom of the buffer plate.

[0015] Furthermore, the output end of the motor is fixedly connected to the worm gear via a coupling.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention employs a preliminary fixing structure consisting of a first threaded sleeve, a second threaded sleeve, and a positioning nut; a secondary reinforcement structure consisting of a locking ring, fastening bolts, a clamping plate, and a fastening nut; and a rotation adjustment structure consisting of a motor, worm gear, worm wheel, and rotating shaft, enabling precise adjustment and stable positioning of the propulsion direction. A composite damping structure consisting of a slide rod, connecting seat, connecting rod, damping spring, guide groove, guide rod, guide plate, and rubber elastomer absorbs and attenuates vibration energy, reducing vibration transmission and ultimately achieving a stable propulsion installation, flexible steering, and minimal vibration impact. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the entire invention from a first-view perspective; Figure 2 This is a three-dimensional structural diagram of the entire invention from a second perspective; Figure 3 This is a schematic diagram of the overall front structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the connection between the support frame and the main body of the propeller in this invention; Figure 5 This is a three-dimensional structural diagram of the clamping mechanism in this invention; Figure 6 This is a three-dimensional structural diagram of the buffer plate in this invention; Figure 7 This is a schematic diagram of the internal structure of the buffer plate in this invention; Figure 8 This is a schematic diagram of the sleeve component in this invention; Figure 9 This is a schematic diagram of the internal structure of the mounting base in this invention; Figure 10 for Figure 9 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Mounting base; 2. Buffer plate; 3. Support frame; 4. Propeller body; 5. Mounting hole; 6. Sleeve component; 61. First threaded sleeve; 62. Second threaded sleeve; 7. Slide rod; 8. First connecting seat; 9. Second connecting seat; 10. Connecting rod; 11. Damping spring; 12. Damping groove; 13. Guide groove; 14. Guide rod; 15. Guide plate; 16. Rubber elastomer; 17. Positioning nut; 18. Locking ring; 19. Fastening bolt; 20. Clamping plate; 21. Fastening nut; 22. Motor; 23. Worm gear; 24. Worm wheel; 25. Rotating shaft; 26. Turntable. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Example 1: Please see Figure 1-10 This invention provides a technical solution: a flexible mounting device for a propeller, including a mounting base 1. The mounting base 1 is made of high-strength cast iron, possessing excellent compressive strength and structural stability, and can securely connect the device to a load-bearing structure such as a ship hull. A shock-absorbing groove 12 inside the mounting base provides ample space for the operation of the subsequent shock-absorbing mechanism. A buffer plate 2 is movably connected inside the shock-absorbing groove 12 via the shock-absorbing mechanism. The buffer plate 2 is made of lightweight alloy material, effectively reducing the overall weight while ensuring structural strength. A turntable 26 is rotatably connected to the top of the buffer plate 2 via a rotating assembly. The turntable 26 is made of wear-resistant steel and can withstand the frictional wear caused by long-term rotation. A support frame 3 is fixedly connected to the top of the turntable 26. The support frame 3 is made of cast steel, possessing high rigidity and providing reliable support for the propeller body 4. An mounting hole 5 is provided inside the support frame 3, and the propeller body 4 is threadedly connected inside the mounting hole 5 via a sleeve 6.

[0021] Furthermore, the sleeve component 6 includes a first threaded sleeve 61 fixedly installed on the outer surface of the propeller body 4 and a second threaded sleeve 62 fixedly connected to one side of the first threaded sleeve 61. Both are made of high-strength alloy steel, with high thread precision and wear resistance. The external threads on the outer surfaces of the first threaded sleeve 61 and the second threaded sleeve 62 are in opposite directions. The advantage of this design is that when the propeller body 4 is tightened, the characteristics of the reverse threads can be used to make the first threaded sleeve 61 tightly engage with the internal thread that matches the inner wall of the mounting hole 5. At the same time, the positioning nut 17 connected by the thread on the outer surface of the second threaded sleeve 62 further locks the screw. The positioning nut 17 is made of high-strength carbon steel and has good anti-loosening performance. Under the dual action, it can effectively prevent the propeller body 4 from loosening due to vibration during high-speed operation, significantly improving the installation stability.

[0022] Furthermore, the rotating assembly includes a motor 22 mounted on the side of the buffer plate 2. The motor 22 is a servo motor with high control precision. The output end of the motor 22 is fixedly connected to the worm gear 23 via a coupling. The coupling is an elastic coupling, which can buffer vibration and compensate for installation errors. The worm gear 23 is made of high-quality alloy structural steel and is hardened to improve wear resistance. A worm wheel 24 is meshed on one side of the worm gear 23. The worm wheel 24 is made of tin bronze, which has good wear resistance and smooth transmission. A rotating shaft 25 is fixedly connected inside the worm wheel 24. The rotating shaft 25 is made of high-strength alloy steel and has good anti-torsion performance. The bottom of the rotating shaft 25 is rotatably connected to the bottom of the inner cavity of the buffer plate 2, and the top is fixedly connected to the bottom of the turntable 26. When the ship needs to adjust its propulsion direction, the motor 22 will start and drive the worm 23 to rotate through the coupling. The meshing transmission between the worm 23 and the worm wheel 24 will convert the rotational motion into the rotation of the shaft 25, which in turn drives the turntable 26 and the support frame 3 above it and the propeller body 4 to rotate synchronously, so as to achieve precise adjustment of the propulsion direction. Moreover, the self-locking function of the worm wheel 24 and worm 23 transmission can make the propeller stably positioned at any angle, meeting the turning requirements of complex waters.

[0023] Furthermore, the damping mechanism includes slide rods 7 installed on both sides inside the damping groove 12 and first connecting seats 8 installed at the four corners of the bottom of the buffer plate 2. The slide rods 7 are made of chrome-plated alloy steel with a smooth and wear-resistant surface, reducing frictional resistance. The first connecting seats 8 are made of cast steel with high connection strength. Second connecting seats 9 are movably connected to both sides of the slide rods 7. The material of the second connecting seats 9 is the same as that of the first connecting seats 8. A connecting rod 10 is hinged to the top of the second connecting seats 9. The connecting rod 10 is made of high-strength alloy steel pipe, which is lightweight and has high strength. The other end of the connecting rod 10 is hinged to the first connecting seat 8. A damping damping spring 11 is provided on the outer surface of the slide rods 7 between the two second connecting seats 9. The damping damping spring 11 is made of high-strength spring steel with good elasticity and excellent damping characteristics, which can quickly absorb and attenuate vibration energy. Both sides of the buffer plate 2 are movably connected to the mounting base 1 via guide components. The guide components include a guide groove 13 formed on the top of the mounting base 1, and a guide rod 14 fixedly connected to the bottom of the inner cavity of the guide groove 13. The guide rod 14 is made of alloy structural steel, with high verticality to ensure guiding accuracy. A guide plate 15 is movably connected to the outer surface of the guide rod 14. The guide plate 15 is made of wear-resistant cast iron, and the other end of the guide plate 15 is fixedly connected to the buffer plate 2. A rubber elastomer 16 is provided on the outer surface of the guide rod 14 below the guide plate 15. The rubber elastomer 16 is made of nitrile rubber, which has good elasticity and is resistant to aging. When the thruster vibrates during operation, the impact force will cause the buffer plate 2 to press down on the first connecting seat 8, which will drive the connecting rod 10 to push the second connecting seat 9 to move to both sides along the slide rod 7. The damping spring 11 will be compressed, using elastic deformation to absorb part of the vibration energy. At the same time, the damping characteristics will quickly attenuate the vibration amplitude, reducing the transmission to the mounting base 1 and the hull. During this process, the guide plate 15 will slide up and down along the guide rod 14 to ensure the vertical and stable movement of the buffer plate 2 and avoid lateral displacement. The rubber elastomer 16 will further absorb the remaining vibration energy. The synergistic effect of multiple damping structures significantly reduces the impact of vibration on the hull structure, extends the service life of the equipment and improves sailing comfort.

[0024] The working principle is as follows: First, the propeller body 4 is installed and fixed. The propeller body 4 is connected to the mounting hole 5 on the support frame 3 through the sleeve 6. The first threaded sleeve 61 engages with the internal thread on the inner wall of the mounting hole 5. At the same time, the positioning nut 17 on the second threaded sleeve 62 is tightened. The characteristics of the reverse thread achieve double fixing, ensuring that the propeller body 4 is installed firmly. When it is necessary to adjust the propulsion direction, the motor 22 on the side of the buffer plate 2 is started. The output end of the motor 22 drives the worm 23 to rotate through the coupling. The worm 23 meshes with the worm wheel 24, causing the rotating shaft 25 to rotate. This, in turn, drives the turntable 26, the support frame 3, and the propeller body 4 to rotate synchronously. The self-locking function of the worm wheel 24 and worm 23 transmission achieves stable positioning of the propulsion direction. When the thruster vibrates during operation, the impact force causes the buffer plate 2 to move downwards, squeezing the first connecting seat 8. This causes the connecting rod 10 to push the second connecting seat 9 to move to both sides along the slide rod 7, compressing the damping spring 11. The spring absorbs and attenuates some of the vibration energy through its elastic deformation and damping characteristics. At the same time, the guide plates 15 on both sides of the buffer plate 2 slide up and down along the guide rod 14 to ensure that the buffer plate 2 moves vertically and avoids displacement. The rubber elastomer 16 below the guide rod 14 further absorbs the remaining vibration energy, thereby reducing the transmission of vibration to the mounting base 1 and the hull, achieving a coordinated operation of stable installation, flexible adjustment, and effective vibration reduction.

[0025] Example 2: Please see Figure 1-10 This invention provides a technical solution: a flexible mounting device for a propeller, including a mounting base 1. The mounting base 1 is made of high-strength cast iron, possessing excellent compressive strength and structural stability, and can securely connect the device to a load-bearing structure such as a ship hull. A shock-absorbing groove 12 inside the mounting base provides ample space for the operation of the subsequent shock-absorbing mechanism. A buffer plate 2 is movably connected inside the shock-absorbing groove 12 via the shock-absorbing mechanism. The buffer plate 2 is made of lightweight alloy material, effectively reducing the overall weight while ensuring structural strength. A turntable 26 is rotatably connected to the top of the buffer plate 2 via a rotating assembly. The turntable 26 is made of wear-resistant steel and can withstand the frictional wear caused by long-term rotation. A support frame 3 is fixedly connected to the top of the turntable 26. The support frame 3 is made of cast steel, possessing high rigidity and providing reliable support for the propeller body 4. An mounting hole 5 is provided inside the support frame 3, and the propeller body 4 is threadedly connected inside the mounting hole 5 via a sleeve 6.

[0026] Furthermore, the sleeve component 6 includes a first threaded sleeve 61 fixedly installed on the outer surface of the propeller body 4 and a second threaded sleeve 62 fixedly connected to one side of the first threaded sleeve 61. Both are made of high-strength alloy steel, with high thread precision and wear resistance. The external threads on the outer surfaces of the first threaded sleeve 61 and the second threaded sleeve 62 are in opposite directions. The advantage of this design is that when the propeller body 4 is tightened, the characteristics of the reverse threads can be used to make the first threaded sleeve 61 tightly engage with the internal thread that matches the inner wall of the mounting hole 5. At the same time, the positioning nut 17 connected by the thread on the outer surface of the second threaded sleeve 62 further locks the screw. The positioning nut 17 is made of high-strength carbon steel and has good anti-loosening performance. Under the dual action, it can effectively prevent the propeller body 4 from loosening due to vibration during high-speed operation, significantly improving the installation stability.

[0027] Furthermore, a locking ring 18 is fixedly connected to the side of the support frame 3 away from the positioning nut 17. The locking ring 18 is made of alloy structural steel, which has good toughness and high strength. Multiple sets of through holes are opened inside the ring, and fastening bolts 19 are movably connected inside the through holes. The fastening bolts 19 are made of high-strength bolt steel. The clamping plate 20 is made of wear-resistant cast iron, and a rubber anti-slip sleeve is fixedly connected to the side of the clamping plate 20 that is close to the propeller body 4. The fastening nut 21 is made of the same material as the fastening bolt 19. After the initial fixing is completed, a secondary reinforcement is carried out through the locking ring 18. The operator passes the fastening bolt 19 through the through hole, so that the clamping plate 20 is in contact with the propeller body 4, and tightens the fastening nut 21. The threaded engagement drives the clamping plate 20 to tighten, and the anti-slip sleeve increases friction to prevent relative slippage.

[0028] Furthermore, the rotating assembly includes a motor 22 mounted on the side of the buffer plate 2. The motor 22 is a servo motor with high control precision. The output end of the motor 22 is fixedly connected to the worm gear 23 via a coupling. The coupling is an elastic coupling, which can buffer vibration and compensate for installation errors. The worm gear 23 is made of high-quality alloy structural steel and is hardened to improve wear resistance. A worm wheel 24 is meshed on one side of the worm gear 23. The worm wheel 24 is made of tin bronze, which has good wear resistance and smooth transmission. A rotating shaft 25 is fixedly connected inside the worm wheel 24. The rotating shaft 25 is made of high-strength alloy steel and has good anti-torsion performance. The bottom of the rotating shaft 25 is rotatably connected to the bottom of the inner cavity of the buffer plate 2, and the top is fixedly connected to the bottom of the turntable 26. When the ship needs to adjust its propulsion direction, the motor 22 will start and drive the worm 23 to rotate through the coupling. The meshing transmission between the worm 23 and the worm wheel 24 will convert the rotational motion into the rotation of the shaft 25, which in turn drives the turntable 26 and the support frame 3 above it and the propeller body 4 to rotate synchronously, so as to achieve precise adjustment of the propulsion direction. Moreover, the self-locking function of the worm wheel 24 and worm 23 transmission can make the propeller stably positioned at any angle.

[0029] Furthermore, the damping mechanism includes slide rods 7 installed on both sides inside the damping groove 12 and first connecting seats 8 installed at the four corners of the bottom of the buffer plate 2. The slide rods 7 are made of chrome-plated alloy steel with a smooth and wear-resistant surface, reducing frictional resistance. The first connecting seats 8 are made of cast steel with high connection strength. Second connecting seats 9 are movably connected to both sides of the slide rods 7. The material of the second connecting seats 9 is the same as that of the first connecting seats 8. A connecting rod 10 is hinged to the top of the second connecting seats 9. The connecting rod 10 is made of high-strength alloy steel pipe, which is lightweight and has high strength. The other end of the connecting rod 10 is hinged to the first connecting seat 8. A damping damping spring 11 is provided on the outer surface of the slide rods 7 between the two second connecting seats 9. The damping damping spring 11 is made of high-strength spring steel with good elasticity and excellent damping characteristics, which can quickly absorb and attenuate vibration energy. Both sides of the buffer plate 2 are movably connected to the mounting base 1 via guide components. The guide components include a guide groove 13 formed on the top of the mounting base 1, and a guide rod 14 fixedly connected to the bottom of the inner cavity of the guide groove 13. The guide rod 14 is made of alloy structural steel, with high verticality to ensure guiding accuracy. A guide plate 15 is movably connected to the outer surface of the guide rod 14. The guide plate 15 is made of wear-resistant cast iron, and the other end of the guide plate 15 is fixedly connected to the buffer plate 2. A rubber elastomer 16 is provided on the outer surface of the guide rod 14 below the guide plate 15. The rubber elastomer 16 is made of nitrile rubber, which has good elasticity and is resistant to aging. When the thruster vibrates during operation, the impact force will cause the buffer plate 2 to press down on the first connecting seat 8, which will drive the connecting rod 10 to push the second connecting seat 9 to move to both sides along the slide rod 7. The damping spring 11 will be compressed, using elastic deformation to absorb part of the vibration energy. At the same time, the damping characteristics will quickly attenuate the vibration amplitude, reducing the transmission to the mounting base 1 and the hull. During this process, the guide plate 15 will slide up and down along the guide rod 14 to ensure the vertical and stable movement of the buffer plate 2 and avoid lateral displacement. The rubber elastomer 16 will further absorb the remaining vibration energy. The synergistic effect of multiple damping structures significantly reduces the impact of vibration on the hull structure, extends the service life of the equipment and improves sailing comfort.

[0030] The working principle is as follows: In the propulsion system of small ships, the elastic mounting device of the propeller plays an important role in connecting the propeller to the hull and buffering the vibration of operation. During installation, the workers first align the propeller body 4 with the mounting hole 5 on the support frame 3 and use the sleeve 6 to achieve initial positioning. The first threaded sleeve 61 in the sleeve 6 is adapted to the internal thread of the inner wall of the mounting hole 5. The opposite thread direction design of the outer surfaces of the first threaded sleeve 61 and the second threaded sleeve 62 ensures that the propeller body 4 and the support frame 3 are tightly fitted during the tightening process. The positioning nut 17 on the second threaded sleeve 62 can further lock the propeller, effectively preventing it from loosening due to vibration during high-speed operation and significantly improving the stability of the installation. After the initial fixing is completed, the propeller body 4 is reinforced a second time by the locking ring 18. Workers pass the fastening bolt 19 through the through hole of the locking ring 18, making the clamping plate 20 fit against the surface of the propeller body 4, and then tighten the fastening nut 21. The threaded engagement of the fastening bolt 19 and the fastening nut 21 tightens the clamping plate 20. At this time, the anti-slip sleeve on the clamping plate 20 increases the friction with the propeller body 4, preventing relative slippage. This double-fixing structure significantly reduces the risk of the propeller falling off, providing double protection for the safe operation of the equipment. When the ship starts and the propeller begins to work, the rotating component can flexibly adjust the propulsion direction according to navigation needs. The motor 22 on the side of the buffer plate 2 starts, and its output end drives the worm 23 to rotate through the coupling. The meshing transmission between the worm 23 and the worm wheel 24 converts the rotational motion of the motor 22 into the rotation of the shaft 25, which in turn drives the turntable 26 and the support frame 3 above and the propeller body 4 to rotate synchronously, achieving precise adjustment of the propulsion direction. Moreover, the worm wheel 24 and worm 23 transmission has a self-locking function, which can stably position at any angle, meeting the turning needs of the ship in complex waters. When the propeller vibrates during operation, the damping mechanism and the guide assembly work together to buffer the vibration. The impact force generated by the vibration causes the buffer plate 2 to press down on the first connecting seat 8, which in turn drives the connecting rod 10 to push the second connecting seat 9 to move to both sides along the slide rod 7. At this time, the damping spring 11 on the slide rod 7 is compressed, and the elastic deformation of the damping spring 11 absorbs part of the vibration energy. At the same time, the damping characteristics can quickly attenuate the vibration amplitude, reducing the transmission of vibration to the mounting base 1 and the hull. During this process, the guide plates 15 on both sides of the buffer plate 2 slide up and down along the guide rod 14 in the guide groove 13, ensuring that the buffer plate 2 only makes stable vertical movements and avoids lateral displacement. The rubber elastomer 16 below the guide rod 14 further absorbs the remaining vibration energy. Through the synergistic effect of multiple damping structures, the impact of propeller vibration on the hull structure is significantly reduced, the service life of the equipment is extended, and the comfort of navigation is improved.

[0031] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

Claims

1. Elastic mounting of a propeller, comprising a mounting base (1), characterised in that: The inside of the mounting base (1) is provided with a damping groove (12), the inside of the damping groove (12) is movably connected with a buffer plate (2) through a damping mechanism, the top of the buffer plate (2) is rotatably connected with a rotating disc (26) through a rotating assembly, the top of the rotating disc (26) is fixedly connected with a supporting frame (3), the inside of the supporting frame (3) is provided with a mounting hole (5), the inside of the mounting hole (5) is threadedly connected with a propeller body (4) through a sleeve piece (6). The damping mechanism comprises slide rods (7) arranged on both sides in the inside of the damping groove (12) and first connecting seats (8) arranged on the four corners of the bottom of the buffer plate (6), the two sides of the slide rod (7) are movably connected with second connecting seats (9), the top of the second connecting seat (9) is hingedly connected with a connecting rod (10), the other end of the connecting rod (10) is hingedly connected with the first connecting seat (8), the outer surface of the slide rod (7) between the two second connecting seats (9) is provided with a damping damping spring (11), and the two sides of the buffer plate (6) are movably connected with the mounting base (1) through a guide assembly.

2. The flexible mounting of a propeller as claimed in claim 1, characterized in that: The guide mechanism comprises a guide groove (13) provided on the top of the damping base (2), the inner cavity bottom of the guide groove (13) is fixedly connected with a guide rod (14), the outer surface of the guide rod (14) is movably connected with a guide plate (15), and the other end of the guide plate (15) is fixedly connected with the buffer plate (6).

3. A resilient mounting for a propeller as claimed in claim 2, characterised in that: The outer surface of the guide rod (14) below the guide plate (15) is provided with a rubber elastomer (16).

4. The flexible mounting of a propeller as claimed in claim 1, characterized in that: The sleeve piece (6) comprises a first threaded sleeve (61) fixedly installed on the outer surface of the propeller body (4), and the side of the first threaded sleeve (61) is fixedly connected with a second threaded sleeve (62).

5. A resilient mounting for a propeller as claimed in claim 4, characterised in that: The outer threads provided on the outer surfaces of the first threaded sleeve (61) and the second threaded sleeve (62) are in opposite directions.

6. The flexible mounting of a propeller as defined in claim 1 wherein: The inner wall of the mounting hole (5) is provided with an inner thread matched with the first threaded sleeve (61), and the outer surface of the second threaded sleeve (62) is threadedly connected with a positioning nut (17).

7. A flexible mounting for a propeller as claimed in claim 6, characterised in that: The side, away from the positioning nut (17), of the supporting frame (3) is fixedly connected with a locking ring (18), a plurality of through holes are formed in the inside of the locking ring (8), the inside of the through hole is movably connected with a fastening bolt (19), the side of the fastening bolt (19) extends into the inside of the locking ring (18) and is fixedly connected with a clamping plate (20), and the outer surface of the fastening bolt (19) outside the locking ring (18) is threadedly connected with a fastening nut (21).

8. The flexible mounting of a propeller as defined in claim 1 wherein: The side, close to the propeller body (4), of the clamping plate (20) is fixedly connected with an anti-skid sleeve.

9. The flexible mounting of a propeller as defined in claim 1 wherein: The rotating assembly comprises a motor (22) installed on the side of the buffer plate (2), the output end of the motor (22) extends to the inside of the buffer plate (2) and is connected with a worm (23), one side of the worm (23) is connected in mesh with a worm wheel (24), the inside of the worm wheel (24) is fixedly connected with a rotating shaft (25), the bottom of the rotating shaft (25) is rotatably connected with the bottom of the inner cavity of the buffer plate (2), and the top of the rotating shaft (25) is fixedly connected with the bottom of the buffer plate (2).

10. A flexible mounting for a propeller as claimed in claim 9, characterised in that: The output end of the motor (22) is fixedly connected with the worm (23) through a shaft coupling.

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