Helical gear transmission wing folding mechanism

Abstract

The utility model discloses a bevel gear transmission wing folding mechanism which comprises an unmanned aerial vehicle body, a steering engine is arranged in the middle of the top of the unmanned aerial vehicle body, a bevel gear B is arranged at the output end of the steering engine, and mounting frames are arranged at the two ends of the top of the unmanned aerial vehicle body. The two sides of the inner side of the mounting frame are sleeved with bevel gears A meshed with the bevel gears B, and wings are arranged on the outer sides of the two sets of bevel gears A; the folding mechanism mainly comprises three helical gears, and the helical gears A on the two sides of the helical gear B are consistent with the helical gear B in gear rotating direction and are perpendicular to the helical gear B, so that when the helical gear B rotates, the helical gears A on the two sides rotate in opposite directions, the two groups of wings are driven to synchronously act to be folded, and the internal space of the unmanned aerial vehicle can be further saved; the size of the unmanned aerial vehicle is reduced, meanwhile, a folding transmission system is more reliable, and the folding process is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle accessories for cable maintenance, in particular to a helical gear transmission wing folding mechanism. Background Art

[0002] The operation of the power grid is inseparable from the support of cables. As an important part of the power system, cables undertake tasks such as the transportation and distribution of electric energy. At present, power cable networking also plays a very important role. There are many influencing factors in the use of power cables, and some common faults are very likely to occur. Therefore, it is necessary to do a good job in the maintenance of power cable lines to reduce the occurrence of cable line faults. At present, drones are used to assist in cable maintenance operations. In order to facilitate maintenance operations, the wings of drones need to be folded through the wing folding mechanism;

[0003] The disadvantage of the existing technology is that it takes up too much space, increases the volume occupied by the drone, and may bring operational risks. In addition, the existing folding transmission technology contains too many transmission parts, which often requires additional travel to meet the movement needs of the parts. Too many transmission parts will also lead to too many fulcrums, which will cause unstable transmission and greatly reduce the life of the parts. Utility Model Content

[0004] The purpose of the utility model is to provide a helical gear transmission wing folding mechanism to solve the existing problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a helical gear transmission wing folding mechanism, comprising an unmanned aerial vehicle body, a servo is arranged in the middle of the top of the unmanned aerial vehicle body, a helical gear B is arranged at the output end of the servo, mounting frames are arranged at both ends of the top of the unmanned aerial vehicle body, helical gears A meshing with the helical gear B are sleeved on both sides of the inner side of the mounting frame, and wings are arranged on the outer sides of the two groups of helical gears A.

[0006] Preferably, a mounting groove is provided in the middle of the top of the UAV body, and the servo is located in the mounting groove to provide installation space.

[0007] Preferably, the gear rotation direction of the two groups of bevel gears A is consistent with that of the bevel gear B, so that the bevel gear A can drive the two groups of bevel gears B to rotate in opposite directions. Since the gear teeth rotation direction of the bevel gears A on both sides of the bevel gear B is consistent with that of the bevel gear B and are placed perpendicular to the bevel gear B, when the bevel gear B rotates, the bevel gears A on both sides rotate in opposite directions, meeting the requirements of synchronous movement of the wings on both sides.

[0008] Preferably, the diameter of the bevel gear B is smaller than that of the two sets of bevel gears A, so as to ensure transmission stability.

[0009] Preferably, a transverse plate is provided on the top of the mounting frame, and the transverse plate is located on the top of the bevel gear B. The bevel gear B can be limited by the transverse plate to improve its stability.

[0010] Preferably, a transmission shaft is provided at the output end of the steering gear, and the steering gear is transmission-connected to the bevel gear B via the transmission shaft, so that the steering gear can control the bevel gear B to rotate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the helical gear transmission wing folding mechanism is mainly composed of three helical gears. Since the gear rotation direction of the helical gears A on both sides of the helical gear B is consistent with the helical gear B and is placed perpendicular to the helical gear B, when the helical gear B rotates, the helical gears A on both sides rotate in opposite directions to each other, thereby driving the two sets of wings to fold synchronously, which can further save the internal space of the drone and reduce the size of the drone. At the same time, in order to make the folding transmission system more reliable and the folding process smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional unfolded state diagram of the utility model;

[0013] Figure 2 This is a three-dimensional folding state diagram of the utility model;

[0014] Figure 3 It is the front view of the utility model;

[0015] Figure 4 It is a transmission schematic diagram of the helical gear A and the helical gear B of the utility model.

[0016] In the figure: 1. UAV body; 2. Mounting frame; 3. Wing; 4. Bevel gear A; 5. Servo; 6. Bevel gear B. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4The utility model provides an embodiment: a helical gear transmission wing folding mechanism, including a drone body 1, a steering gear 5 is arranged in the middle of the top of the drone body 1, a mounting groove is opened in the middle of the top of the drone body 1, the steering gear 5 is located in the mounting groove, and an installation space is provided for the steering gear 5, and a helical gear B6 is arranged at the output end of the steering gear 5, and a transmission shaft is arranged at the output end of the steering gear 5, and the steering gear 5 is connected to the helical gear B6 through the transmission shaft, so that the steering gear 5 can control the rotation of the helical gear B6, and mounting frames 2 are arranged at both ends of the top of the drone body 1, and a horizontal plate is arranged on the top of the mounting frame 2, and the horizontal plate is located on the top of the helical gear B6, and the helical gear B6 can be limited by the horizontal plate to improve its stability;

[0019] Bevel gears A4 meshing with the bevel gear B6 are sleeved on both sides of the inner side of the mounting frame 2. The diameter of the bevel gear B6 is smaller than that of the two groups of bevel gears A4, which can ensure the transmission stability. The gear rotation direction of the two groups of bevel gears A4 is consistent with that of the bevel gear B6. Since the gear teeth rotation direction of the bevel gears A4 on both sides of the bevel gear B6 is consistent with that of the bevel gear B6 and are placed perpendicular to the bevel gear B6, when the bevel gear B6 rotates, the bevel gears A4 on both sides rotate in opposite directions to each other, meeting the requirement of synchronous movement of the wings on both sides. Wings 3 are arranged on the outside of the two groups of bevel gears A4.

[0020] Working principle: When performing cable maintenance operations, the wings 3 need to be folded to improve the stability of the operation. At this time, the servo 5 can be started to control the rotation of the bevel gear B6. Because the gear rotation direction of the bevel gears A4 on both sides of the bevel gear B6 is consistent with the bevel gear B6 and is placed perpendicular to the bevel gear B6, when the bevel gear B6 rotates, the bevel gears A4 on both sides rotate in opposite directions, thereby driving the two sets of wings 3 to fold synchronously.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A helical gear transmission wing folding mechanism, comprising an unmanned aerial vehicle body (1), characterized in that: A steering gear (5) is arranged in the middle of the top of the drone body (1), and a bevel gear B (6) is arranged at the output end of the steering gear (5). Mounting frames (2) are arranged at both ends of the top of the drone body (1), and bevel gears A (4) meshing with the bevel gear B (6) are sleeved on both sides of the inner side of the mounting frame (2), and wings (3) are arranged on the outer sides of the two sets of bevel gears A (4).

2. A helical gear transmission wing folding mechanism according to claim 1, characterized in that: A mounting groove is provided in the middle of the top of the drone body (1), and the steering gear (5) is located in the mounting groove.

3. The helical gear transmission wing folding mechanism according to claim 1, characterized in that: The gear rotation direction of the two sets of helical gears A (4) is consistent with that of the helical gear B (6).

4. The helical gear transmission wing folding mechanism according to claim 1, characterized in that: The diameter of the bevel gear B (6) is smaller than that of the two sets of bevel gears A (4).

5. The helical gear transmission wing folding mechanism according to claim 1, characterized in that: A transverse plate is arranged on the top of the mounting frame (2), and the transverse plate is located on the top of the bevel gear B (6).

6. The helical gear transmission wing folding mechanism according to claim 1, characterized in that: The output end of the steering gear (5) is provided with a transmission shaft, and the steering gear (5) is transmission-connected to the bevel gear B (6) via the transmission shaft.

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