Novel helicopter rotor wing head

Abstract

The novel helicopter rotary wing head comprises a side frame plate, a first installation plate, a second installation plate and a third installation plate are sequentially installed from the top to the middle of the inner side of the side frame plate, and the inner wall of the side frame plate and the bottom face of the third installation plate are both attached to the outer wall of the tail end of a square tube fuselage. A power transmission mechanism is mounted on the third mounting plate and is connected with the rotating shaft; a positioning plate is fixed at the bottom of the tail end of the side frame plate; and horizontal plates are fixedly mounted on the surfaces, located on the inner sides of the side frame plates, of the positioning plates, and second limiting holes are formed in the horizontal plates. According to the novel helicopter rotary wing head, the novel structural design is adopted, the stability of the support structure of the rotary wing head is improved through the bottom locking mechanism, deformation of the support structure is avoided, meanwhile, the square tube fuselage and the support structure are subjected to extrusion positioning, stable connection of the square tube fuselage and the support structure is guaranteed, and the whole helicopter head is not prone to deformation.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field, concretely is a novel helicopter rotary wing head. BACKGROUND

[0002] Unmanned plane is a kind of unmanned robot by remote control or autonomous flight, can complete various tasks, such as scientific exploration, power inspection, agricultural monitoring, traffic management, security monitoring etc., and most of current civilian unmanned plane adopts rotary wing power mechanism.

[0003] The rotary wing head of existing novel square tube unmanned plane is directly connected with square tube fuselage by support structure, is only fixed by bolt connection, and the bottom of support structure lacks limiting mechanism, and the connection point position with square tube fuselage is limited, and overall stability is insufficient.So it is necessary to design a novel helicopter rotary wing head for the above problems. UTILITY MODEL CONTENT

[0004] The utility model is to provide a novel helicopter rotary wing head to solve at least one technical problem existing in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A novel helicopter rotary wing head, comprising:

[0007] Side frame plate, first mounting plate, second mounting plate and third mounting plate are sequentially installed on the inside top to the middle of side frame plate, the inner wall of side frame plate and the bottom surface of third mounting plate are attached to the outer wall of square tube fuselage tail end, power transmission mechanism is installed on third mounting plate, power transmission mechanism is connected with rotary shaft, rotary shaft is installed on first mounting plate and second mounting plate, and rotary wing is installed on the top end of rotary shaft;

[0008] Side frame plate, positioning plate is fixed at the bottom of side frame plate tail end, and reinforcing mounting plate is fixedly installed at the tail end of first mounting plate and second mounting plate above positioning plate, first limiting hole is formed in positioning plate, horizontal threaded rod is installed in first limiting hole, and first locking nut is installed on horizontal threaded rod;

[0009] Positioning plate, horizontal plate is fixedly installed on the surface of side frame plate inside, second limiting hole is formed in horizontal plate, vertical threaded rod is installed in second limiting hole, and second locking nut is installed on vertical threaded rod, and support mounting plate is fixed at the top end of vertical threaded rod.

[0010] Preferably, the first mounting plate, the second mounting plate and the third mounting plate are parallel to each other, and the side frame plates are symmetrically installed at both ends of the first mounting plate.

[0011] Preferably, the top view shape of the positioning plate is "L" type, and the top end and the bottom end of the positioning plate are fixedly provided with the plate-shaped structure of right triangle.

[0012] Preferably, the positioning plate is symmetrically distributed about the horizontal screw rod center, and the horizontal plane where the horizontal screw rod center is located is lower than the horizontal plane where the center of the side frame plate is located.

[0013] Preferably, the horizontal screw rod is in sliding connection with the first limiting hole, and the first locking nut is symmetrically arranged on the horizontal screw rod on the two sides of the first limiting hole about the center of the first limiting hole.

[0014] Preferably, the bottom end of the horizontal plate is fixedly provided with the plate-shaped structure of right triangle, and the length of the top view of the horizontal plate is greater than half of the length of the top view of the positioning plate.

[0015] Preferably, the vertical screw rod is in sliding connection with the second limiting hole, and the second locking nut is symmetrically arranged on the vertical screw rod on the upper and lower sides of the second limiting hole about the center of the second limiting hole.

[0016] Preferably, the support mounting plate and the third mounting plate are in parallel distribution, and the side length of the support mounting plate is greater than the front view side length of the horizontal plate.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The novel structure design is adopted, the stability of the rotating wing head support structure is improved through the bottom locking mechanism, the support structure deformation is avoided, the square tube machine body and the support structure are extruded and positioned, the stable connection of the square tube machine body and the support structure is guaranteed, and the whole machine head is not easy to deform;

[0019] 1. The relative position of the horizontal screw rod tail end and the positioning plate is locked through the symmetrically distributed first locking nut, so that the positioning plate fixed at the end of the symmetrically distributed side frame plate is tensioned and positioned, the bottom of the side frame plate is stable, and is not easy to deform;

[0020] 2. The relative position of the vertical screw rod and the horizontal plate is locked through the second locking nut, so that the vertical screw rod and the horizontal plate can stably extrude and support the top of the square tube machine body and the third mounting plate to stably adhere, and the stability of the connection of the support square tube and the rotating wing head part support structure is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0022] Figure 2 It is a front view structure schematic view of the side frame plate, the positioning plate and the support mounting plate of the utility model.

[0023] Figure 3 It is the front view section structure schematic drawing of the positioning plate and the horizontal plate of the utility model.

[0024] Figure 4 It is the side view structure schematic drawing of the side frame plate, the positioning plate and the support mounting plate of the utility model.

[0025] Figure 5 It is the plan section structure schematic drawing of the positioning plate and the horizontal plate of the utility model.

[0026] In the figure: 1, side frame plate;2, first mounting plate;3, second mounting plate;4, third mounting plate;5, square tube body;6, power transmission mechanism;7, rotating shaft;8, rotor;9, reinforcing mounting plate;10, positioning plate;11, first limiting hole;12, horizontal threaded rod;13, first locking nut;14, horizontal plate;15, second limiting hole;16, vertical threaded rod;17, second locking nut;18, support mounting plate. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0028] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the utility model, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-5 An embodiment provided by the present application comprises:

[0032] A novel helicopter rotary wing head comprises:

[0033] The side frame plate 1 is internally provided with a first mounting plate 2, a second mounting plate 3 and a third mounting plate 4 from top to middle, and the inner wall of the side frame plate 1 and the bottom surface of the third mounting plate 4 are attached to the outer wall of the end of the square tube fuselage 5. The power transmission mechanism 6 is mounted on the third mounting plate 4, and the power transmission mechanism 6 is connected with the rotary shaft 7. The rotary shaft 7 is mounted on the first mounting plate 2 and the second mounting plate 3, and the rotary shaft 7 is provided with the rotary wing 8 at the top end. The first mounting plate 2, the second mounting plate 3 and the third mounting plate 4 are parallel to each other. The first mounting plate 2 is symmetrically provided with the side frame plate 1 at both ends. The above structure design makes the overall structure of the side frame plate 1, the first mounting plate 2, the second mounting plate 3 and the third mounting plate 4 stable, and the power transmission mechanism 6 and the rotary shaft 7 can be stably installed.

[0034] The side frame plate 1 is fixedly provided with a positioning plate 10 at the bottom end. The first mounting plate 2 and the second mounting plate 3 are fixedly provided with a reinforcing mounting plate 9 at the end above the positioning plate 10. The positioning plate 10 is provided with a first limiting hole 11. The positioning plate 10 has an "L" shape in plan view. The positioning plate 10 is fixedly provided with a right triangle plate structure at the top end and the bottom end. The above structure design makes the positioning plate 10 have high structural strength and be not easy to deform. A horizontal threaded rod 12 is installed in the first limiting hole 11. The positioning plate 10 is symmetrically distributed about the center of the horizontal threaded rod 12. The horizontal plane where the center of the horizontal threaded rod 12 is located is lower than the horizontal plane where the center of the side frame plate 1 is located. The above structure design makes the positioning plate 10 and the horizontal threaded rod 12 be able to pull and position the bottom of the side frame plate 1. The horizontal threaded rod 12 is provided with a first locking nut 13.

[0035] The positioning plate 10 is fixedly provided with a horizontal plate 14 on the surface inside the side frame plate 1. The horizontal plate 14 is provided with a second limiting hole 15. A vertical threaded rod 16 is installed in the second limiting hole 15. The vertical threaded rod 16 is provided with a second locking nut 17. The vertical threaded rod 16 is fixedly provided with a support mounting plate 18 at the top end.

[0036] In one of the embodiments, the horizontal threaded rod 12 is in sliding connection with the first limiting hole 11, and the first locking nut 13 is symmetrically installed on the horizontal threaded rod 12 on both sides of the first limiting hole 11 relative to the center of the first limiting hole 11, so that the first locking nut 13 can quickly lock the relative position of the positioning plate 10 and the horizontal threaded rod 12.

[0037] In one of the preferred embodiments, the horizontal plate 14 is fixedly installed at the bottom end with a right-angled triangular plate structure, and the length of the horizontal plate 14 in plan view is greater than half of the length of the positioning plate 10 in plan view, so that the horizontal plate 14 is stable as a whole and is not easy to deform, and can stably position the vertical threaded rod 16 and the support mounting plate 18.

[0038] In one of the embodiments, the vertical threaded rod 16 is in sliding connection with the second limiting hole 15, and the second locking nut 17 is symmetrically installed on the vertical threaded rod 16 on the upper and lower sides of the second limiting hole 15 relative to the center of the second limiting hole 15, so that the second locking nut 17 can quickly lock the relative position of the vertical threaded rod 16 and the horizontal plate 14.

[0039] In one of the preferred embodiments, the support mounting plate 18 is in parallel distribution with the third mounting plate 4, and the side length of the support mounting plate 18 is greater than the length of the horizontal plate 14 in elevation, so that the support mounting plate 18 can be in large-area contact with the end of the square tube body 5, extrude the square tube body 5 and the third mounting plate 4 to stably fit, and provide support to avoid loosening of the square tube body 5.

[0040] The working principle of the utility model is as follows: during installation, first, according to the Figure 3 and Figure 4 side frame plates 1 are assembled and fixed with the first mounting plate 2, the second mounting plate 3, the third mounting plate 4 and the reinforcing mounting plate 9, and the power transmission mechanism 6, the rotating shaft 7 and the rotor 8 are installed as shown in the Figure 1 ;

[0041] Subsequently, the end of the square tube body 5 is inserted between the side frame plates 1, the top of the square tube body 5 is fitted with the bottom surface of the third mounting plate 4, the outer wall of the square tube body 5 is fitted with the inner side surface of the side frame plate 1, the square tube body 5 is connected with the pre-set holes of the side frame plate 1 through bolts, and then Figure 4 and Figure 5The first locking nuts 13, which are symmetrically distributed in the middle, rotate away from the two ends of the positioning plate 10 and press the bottom of the symmetrically distributed side frame plate 1, so that the positioning plate 10, with the first limiting hole 11, slides relative to the end of the horizontal threaded rod 12 until the bottom of the side frame plate 1 is close to tightening, and the square tube body 5 is stably pressed. The first locking nuts 13, which are symmetrically distributed in the middle, rotate and press the two ends of the positioning plate 10, fixing the relative position of the positioning plate 10 and the horizontal threaded rod 12. The bottom of the side frame plate 1 is tightened and positioned by the positioning plate 10 and the horizontal threaded rod 12.

[0042] Then rotate Figure 3 The second locking nuts 17, which are symmetrically distributed in the middle, are away from the upper and lower end faces of the horizontal plate 14. They push the vertical threaded rod 16 to slide vertically upward along the second limiting hole 15 with the support mounting plate 18. The support mounting plate 18 presses the top of the inner side of the square tube body 5 and the bottom surface of the third mounting plate 4 to fit stably. The second locking nuts 17, which are symmetrically distributed in the middle, press the upper and lower end faces of the horizontal plate 14 to fix it, thus completing the stable connection between the square tube body 5 and the side frame plate 1 and ensuring the overall stability of the rotating wing head structure.

[0043] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A new helicopter rotor head characterized by, It includes: The side frame plate (1) is installed with the first mounting plate (2), the second mounting plate (3) and the third mounting plate (4) from top to middle inside, the inner wall of the side frame plate (1) and the bottom surface of the third mounting plate (4) are attached to the outer wall of the square tube body (5) end, the power transmission mechanism (6) is installed on the third mounting plate (4), the power transmission mechanism (6) is connected with the rotating shaft (7), the rotating shaft (7) is installed on the first mounting plate (2) and the second mounting plate (3), the rotating shaft (7) is installed with the rotor (8) on the top end; The side frame plate (1) is fixed with the positioning plate (10) at the bottom end, the first mounting plate (2) and the second mounting plate (3) are fixedly installed with the reinforcing mounting plate (9) at the end, the first limiting hole (11) is opened on the positioning plate (10), the horizontal threaded rod (12) is installed in the first limiting hole (11), the first locking nut (13) is installed on the horizontal threaded rod (12); The positioning plate (10) is fixedly installed with the horizontal plate (14) on the surface inside the side frame plate (1), the second limiting hole (15) is opened on the horizontal plate (14), the vertical threaded rod (16) is installed in the second limiting hole (15), the second locking nut (17) is installed on the vertical threaded rod (16), the support mounting plate (18) is fixed on the top end of the vertical threaded rod (16).

2. A new helicopter rotor head according to claim 1, characterized in that: The first mounting plate (2), the second mounting plate (3) and the third mounting plate (4) are parallel to each other, the first mounting plate (2) is symmetrically installed with the side frame plate (1) at both ends.

3. A new helicopter rotor head according to claim 1 characterized by: The positioning plate (10) is fixedly installed with the right-angled triangular plate structure at the top end and the bottom end.

4. A new helicopter rotor head according to claim 1 characterized by: The positioning plate (10) is symmetrically distributed about the center of the horizontal threaded rod (12), the horizontal plane where the center of the horizontal threaded rod (12) is located is lower than the horizontal plane where the center of the side frame plate (1) is located.

5. A new helicopter rotor head according to claim 1, characterized in that: The horizontal threaded rod (12) is connected with the first limiting hole (11) in a sliding manner, the first locking nut (13) is symmetrically installed on the horizontal threaded rod (12) on both sides of the first limiting hole (11) about the center of the first limiting hole (11).

6. A new helicopter rotor head according to claim 1 characterized by: The horizontal plate (14) is fixedly installed with the right-angled triangular plate structure at the bottom end, the horizontal length of the horizontal plate (14) is greater than half of the horizontal length of the positioning plate (10).

7. A new helicopter rotor head according to claim 1 characterized by: The vertical threaded rod (16) is connected with the second limiting hole (15) in a sliding manner, the second locking nut (17) is symmetrically installed on the vertical threaded rod (16) on both sides of the second limiting hole (15) about the center of the second limiting hole (15).

8. A new helicopter rotor head according to claim 1 characterized by: The support mounting plate (18) is parallel to the third mounting plate (4), the side length of the support mounting plate (18) is greater than the front side length of the horizontal plate (14).

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