Propeller clamp mechanism capable of reducing vibration of folding propeller and aircraft

Abstract

The present invention discloses a propeller clamp mechanism and an aircraft capable of reducing vibration of a folding propeller, comprising an integrated machine arm, a propeller clamp assembly and a propeller, wherein the propeller is arranged on the propeller clamp assembly; the propeller clamp assembly comprises a propeller clamp seat, a shock-absorbing pad assembly and a connecting and rotating assembly; the connecting and rotating assembly comprises a base and a rotating mechanism, wherein the rotating mechanism is arranged on the propeller clamp seat, one end of the base is connected to the integrated machine arm, and the other end is rotatably connected to the rotating mechanism; the shock-absorbing pad assembly is arranged on the base, and when the rotating mechanism rotates around the base, the shock-absorbing pad assembly limits the rotating mechanism from rotating around the base within a certain range. The present invention enables the propeller to rotate at a certain angle in the vertical direction by installing a connecting and rotating assembly on the propeller clamp seat, and at the same time limits the top of the propeller clamp seat with a shock-absorbing pad assembly, and utilizes the flexible shock absorption and shock absorption of the shock-absorbing pad assembly to achieve the purpose of reducing vibration.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft, and in particular to a propeller clamp mechanism capable of reducing vibration of a folding propeller and an aircraft. Background Art

[0002] Currently, most of the foldable plastic propellers on the market use propeller clips as carriers and are fixed with bolts in a rigid connection mode. Under this installation method, when the drone is flying, the propellers rotate and generate vibrations. First, this vibration will increase the wear of the motor bearings and reduce the service life of the bearings. Secondly, the vibration generated by the propellers is transmitted to the arms or fuselage, causing the entire machine to shake. Such continuous shaking is very detrimental to the frame itself and precision electronic components such as flight control, and there are certain safety hazards. In addition, during operations (aerial photography, aerial surveying, etc.), it is impossible to obtain clear and beautiful pictures and relatively perfect data.

[0003] The existing solution is often to reduce vibration by adding a gasket made of specific material between the paddle and the paddle clamp, but the disadvantage is that the shock absorption effect is not obvious. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a propeller clamp mechanism and an aircraft that can reduce the vibration of a folding propeller. By installing a connecting rotating assembly on a propeller clamp seat, the propeller can rotate at a certain angle in the vertical direction. At the same time, a shock-absorbing pad assembly is used to limit the top of the propeller clamp seat. The flexible shock-absorbing and shock-absorbing properties of the shock-absorbing pad assembly are utilized to reduce vibration.

[0005] The present invention provides a technical solution to solve the above problem: a propeller clamp mechanism capable of reducing vibration of a folding propeller, comprising an integrated machine arm, a propeller clamp assembly and a propeller, wherein the propeller is arranged on the propeller clamp assembly; the propeller clamp assembly comprises a propeller clamp seat, a shock-absorbing pad assembly and a connecting and rotating assembly;

[0006] The connecting and rotating assembly comprises a base and a rotating mechanism, wherein the rotating mechanism is arranged on the propeller clamp seat, one end of the base is connected to the integrated machine arm, and the other end is rotatably connected to the rotating mechanism;

[0007] The shock-absorbing pad assembly is arranged on the base, and when the rotating mechanism rotates around the base, the shock-absorbing pad assembly limits the rotating mechanism to rotate around the base within a certain range.

[0008] Preferably, the rotating mechanism includes a steel shaft, two mounting seats and two bearings, the two mounting seats are arranged on the paddle clamp seat, the two bearings are respectively arranged in the two mounting seats, the two ends of the steel shaft are respectively rotatably connected to the two bearings, and the upper end of the base is connected to the steel shaft.

[0009] Preferably, a through hole matching the steel shaft is provided at the upper end of the base, a bolt hole 1 is provided on the hole wall of the through hole, a bolt hole 2 is provided at a position corresponding to the bolt hole on the steel shaft, and the bolt hole 1 and the bolt hole 2 are connected by bolt 1.

[0010] Preferably, the shock-absorbing pad assembly includes a mounting member and a shock-absorbing pad arranged on the mounting member, and one end of the shock-absorbing pad away from the mounting member abuts against the paddle clamp seat, and when the rotating mechanism rotates around the base, the shock-absorbing pad is deformed.

[0011] Preferably, a boss cooperating with the shock absorbing pad is provided at a position on the paddle clamp seat corresponding to the shock absorbing pad.

[0012] Preferably, the propeller clamp seat includes a propeller clamp upper plate and a propeller clamp lower plate arranged at the lower end of the propeller clamp upper plate, and columns are provided at both ends of the propeller clamp lower plate, and one end of the propeller is sleeved on the columns.

[0013] Preferably, a bolt hole three is provided at a position on the paddle clamp upper plate corresponding to the column, an axial threaded hole four is provided on the column, and the bolt hole three and the threaded hole four are connected by bolt two.

[0014] Preferably, a wave spring and two washers are sleeved on the column, and the propeller is located between the two washers.

[0015] Preferably, both the paddle clamp upper plate and the paddle clamp lower plate are provided with mounting holes that cooperate with the base.

[0016] Another object of the present invention is to disclose an aircraft, comprising a propeller clamp mechanism as described in any one of the above items that can reduce the vibration of a folding propeller.

[0017] Compared with the prior art, the advantages of the present invention are as follows: the present invention enables the propeller to rotate at a certain angle in the vertical direction by installing a connecting rotating assembly on the propeller clamp seat, and at the same time limits the top of the propeller clamp seat with a shock-absorbing pad assembly, and utilizes the flexible shock-absorbing and shock-absorbing properties of the shock-absorbing pad assembly to achieve the purpose of reducing vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] Figure 1 is an exploded schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0021] The attached drawings are marked with: 1. mounting part, 2. shock-absorbing pad, 3. bolt two, 4. bolt hole three, 5. gasket, 6. propeller, 7. wave spring, 8. column, 9. propeller clamp lower plate, 10. bolt hole one, 11. base, 12. integrated machine arm, 13. through hole, 14. bolt one, 15. mounting seat, 16. bearing, 17. steel shaft, 18. bolt hole two, 19. propeller clamp upper plate, 20. boss, 21. mounting hole. DETAILED DESCRIPTION

[0022] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The specific implementation example of the present invention is Figure 1 and Figure 2 As shown, a propeller clamp mechanism capable of reducing vibration of a folding propeller comprises an integrated machine arm 12, a propeller clamp assembly and a propeller 6, wherein the propeller 6 is arranged on the propeller clamp assembly; the propeller clamp assembly comprises a propeller clamp seat, a shock-absorbing pad assembly and a connecting and rotating assembly;

[0027] The connecting and rotating assembly comprises a base 11 and a rotating mechanism, wherein the rotating mechanism is arranged on the propeller clamp seat, one end of the base 11 is connected to the integrated machine arm 12, and the other end is rotatably connected to the rotating mechanism;

[0028] The shock-absorbing pad assembly is disposed on the base 11 , and when the rotating mechanism rotates around the base 11 , the shock-absorbing pad assembly limits the rotating mechanism to rotate around the base 11 within a certain range.

[0029] In this embodiment, the rotating mechanism includes a steel shaft 17, two mounting seats 15 and two bearings 16. The two mounting seats 15 are arranged on the paddle clamp seat, and the two bearings 16 are respectively arranged in the two mounting seats 15. The two ends of the steel shaft 17 are respectively rotatably connected to the two bearings 16, and the upper end of the base 11 is connected to the steel shaft 17.

[0030] In this embodiment, a through hole 13 cooperating with the steel shaft 17 is provided at the upper end of the base 11, a bolt hole 10 is provided on the hole wall of the through hole 13, a bolt hole 2 18 is provided at a position corresponding to the bolt hole on the steel shaft 17, and the bolt hole 10 and the bolt hole 2 18 are connected by a bolt 14.

[0031] In this embodiment, the shock absorbing pad assembly includes a mounting member 1 and a shock absorbing pad 2 arranged on the mounting member 1, and one end of the shock absorbing pad 2 away from the mounting member 1 abuts against the paddle clamp seat. When the rotating mechanism rotates around the base 11, the shock absorbing pad 2 is deformed.

[0032] In this embodiment, a boss 20 that cooperates with the shock absorbing pad 2 is provided at a position on the paddle clamp seat corresponding to the shock absorbing pad 2 .

[0033] It should be noted that the shock-absorbing pad is a silicone shock-absorbing pad, which is truncated cone-shaped and obliquely arranged at both ends of the mounting piece, and the boss is obliquely arranged on the paddle clamp seat. When the mounting piece is tightened, the shock-absorbing pad abuts against the surface of the truncated cone.

[0034] In this embodiment, the propeller clamp seat includes an upper propeller clamp plate 19 and a lower propeller clamp plate 9 arranged at the lower end of the upper propeller clamp plate 19, and columns 8 are provided at both ends of the lower propeller clamp plate 9, and one end of the propeller 6 is sleeved on the columns 8.

[0035] In this embodiment, a bolt hole three 4 is provided at a position of the paddle clamp upper plate 19 corresponding to the column 8, an axial bolt hole four is provided on the column 8, and the bolt hole three 4 is connected to the bolt hole four by a bolt two 3.

[0036] In this embodiment, a wave spring 7 and two washers 5 are sleeved on the column 8 , and the propeller 6 is located between the two washers 5 .

[0037] In this embodiment, both the paddle clamp upper plate 19 and the paddle clamp lower plate 9 are provided with mounting holes 21 that match the base 11 .

[0038] The assembly of the shock-absorbing pad assembly is specifically as follows: the shock-absorbing pad is embedded into the through holes on both sides of the mounting member, and the assembly of the shock-absorbing pad assembly is completed at this time.

[0039] Assembly of the propeller clamp mechanism assembly: First, install the flanged bearing into the through hole of the mounting seat on the propeller clamp lower plate, and then pass the base through the mounting hole in the center of the propeller clamp lower plate, ensuring that the bearing and the through hole in the center of the base are in the same straight line. At this time, install the steel shaft into the hole of the bearing, adjust the position of the steel shaft, and fix it with bolt 1. Then pass the wave spring through the column of the propeller clamp lower plate and put it into the countersunk hole of the propeller clamp lower plate, then put a steel gasket, then place the propeller, and then put another steel gasket. Finally, align the propeller clamp upper plate with the corresponding hole position of the propeller clamp lower plate, and fix it with bolt 2. At this time, the assembly of the propeller clamp mechanism assembly is completed.

[0040] The overall installation of the present invention is as follows: first, the mounting piece is fixed to the upper end surface of the base by bolts, and then fixed to the integrated machine arm (motor) by bolts, and then the installation of the present invention is completed.

[0041] The present invention also discloses an aircraft, comprising a propeller clamp mechanism as described in any one of the above items, which can reduce the vibration of a folding propeller.

[0042] The above description is only for the best embodiment of the present invention, but it should not be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A propeller clamp mechanism capable of reducing vibration of a folding propeller, comprising an integrated machine arm (12), a propeller clamp assembly and a propeller (6), wherein the propeller (6) is arranged on the propeller clamp assembly; characterized in that: The paddle clamp assembly comprises a paddle clamp seat, a shock-absorbing pad assembly and a connecting and rotating assembly; The connecting and rotating assembly comprises a base (11) and a rotating mechanism, wherein the rotating mechanism is arranged on the paddle clamp seat, one end of the base (11) is connected to the integrated machine arm (12), and the other end is rotatably connected to the rotating mechanism; The shock-absorbing pad assembly is arranged on the base (11), and when the rotating mechanism rotates around the base (11), the shock-absorbing pad assembly limits the rotating mechanism to rotate around the base (11) within a certain range; The rotating mechanism comprises a steel shaft (17), two mounting seats (15) and two bearings (16); the two mounting seats (15) are arranged on the paddle clamp seat; the two bearings (16) are respectively arranged in the two mounting seats (15); the two ends of the steel shaft (17) are respectively rotatably connected to the two bearings (16); and the upper end of the base (11) is connected to the steel shaft (17); The upper end of the base (11) is provided with a through hole (13) matched with the steel shaft (17), the hole wall of the through hole (13) is provided with a bolt hole (10), and a bolt hole (18) is provided at a position corresponding to the bolt hole on the steel shaft (17), and the bolt hole (10) and the bolt hole (18) are connected by a bolt (14); The shock-absorbing pad assembly comprises a mounting member (1) and a shock-absorbing pad (2) arranged on the mounting member (1); an end of the shock-absorbing pad (2) away from the mounting member (1) abuts against the paddle clamp seat; when the rotating mechanism rotates around the base (11), the shock-absorbing pad (2) is deformed; A boss (20) matching with the shock absorbing pad (2) is provided at a position on the paddle clamp seat corresponding to the shock absorbing pad (2); The propeller clamp seat comprises a propeller clamp upper plate (19) and a propeller clamp lower plate (9) arranged at the lower end of the propeller clamp upper plate (19), and columns (8) are arranged at both ends of the propeller clamp lower plate (9), and one end of the propeller (6) is sleeved on the column (8); A third bolt hole (4) is provided at a position corresponding to the column (8) on the paddle clamp upper plate (19), and a fourth axial bolt hole is provided on the column (8), and the third bolt hole (4) is connected to the fourth bolt hole by a second bolt (3); The column (8) is also sleeved with a wave spring (7) and two washers (5), and the propeller (6) is located between the two washers (5); The paddle clamp upper plate (19) and the paddle clamp lower plate (9) are both provided with mounting holes (21) that match the base (11); The shock-absorbing pad (2) is a silica gel shock-absorbing pad, which is in the shape of a truncated cone and is obliquely arranged at the two ends of the mounting member (1), and the boss (20) is obliquely arranged on the paddle clamp seat, and when the mounting member (1) is tightened, the shock-absorbing pad (2) abuts against the surface of the truncated cone; The assembly of the shock-absorbing pad assembly is specifically as follows: the shock-absorbing pad (2) is embedded into the through holes on both sides of the mounting member (1), and the assembly of the shock-absorbing pad assembly is completed; Assembly of the paddle clamp mechanism assembly: first, install the flanged bearing (16) into the through hole of the mounting seat (15) on the paddle clamp lower plate (9), then pass the base (11) through the mounting hole in the center of the paddle clamp lower plate (9), ensure that the bearing (16) and the through hole in the center of the base (11) are in the same straight line, then install the steel shaft (17) into the hole of the bearing (16), adjust the position of the steel shaft (17), and fix it with bolt one (14); then pass the wave spring (7) through the column (8) of the paddle clamp lower plate (9) and put it into the countersunk hole of the paddle clamp lower plate (9), then pad a steel gasket, then place the propeller (6), and then pad another steel gasket; finally, align the paddle clamp upper plate (19) with the corresponding hole position of the paddle clamp lower plate (9) and cover it, and fix it with bolt two (3), then the assembly of the paddle clamp mechanism assembly is completed; Overall installation: First, fix the mounting piece (1) to the upper end surface of the base (11) by bolts, and then fix it to the integrated machine arm (12) by bolts, and then the overall installation is completed.

2. An aircraft, characterized in that: The invention comprises an oar clamp mechanism capable of reducing vibration of a folding oar as claimed in claim 1.

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