Coaxial arm of unmanned aerial vehicle

Abstract

The utility model discloses a coaxial arm of an unmanned aerial vehicle. The coaxial arm comprises a connecting arm, a shaft arm mechanism arranged on the connecting arm and a motor arranged on the shaft arm mechanism. The shaft arm mechanism comprises a connecting block and a plurality of connecting sleeves arranged on the connecting block, the connecting sleeves are vertically arranged on the side, close to the connecting arm, of the connecting block, and embedding spaces are formed between the connecting sleeves at equal intervals; shaft arm mechanisms are arranged on the two sides of each connecting arm, the connecting arms are sleeved with the connecting sleeves, the connecting sleeves are arranged in the embedding spaces between the connecting sleeves on the oppositely-arranged connecting blocks in a penetrating mode, and the connecting sleeves are connected through fasteners in a unified mode. The motor is fixed to the connecting arm through the two same shaft arm mechanisms, the structural stability of the shaft arms is improved in the mode that the connecting sleeves are embedded with one another, and meanwhile the upper shaft arm and the lower shaft arm which are coaxial can be installed in the rotating direction to achieve free switching between the angle and the non-angle. The inclination angle of the shaft arm can be freely defined in the machining process, and the mold opening cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned aerial vehicle motor field, concretely relates to a kind of unmanned aerial vehicle coaxial machine arm. BACKGROUND

[0002] Unmanned aircraft is called "unmanned aerial vehicle" by using radio remote control equipment and self-provided program control device, is not controlled by person, or by vehicle-mounted computer completely or intermittently self-operated, in the application of aerial photography, agriculture, plant protection, micro-selfie, express delivery, disaster rescue, observation of wild animals, monitoring infectious disease, surveying and mapping, news report, power patrol, disaster relief, film and television shooting and so on, greatly expand the purpose of unmanned aerial vehicle itself, developed country is also actively expanding industry application and developing unmanned aerial vehicle technique.

[0003] At present, by controlling hydraulic rod contraction or lengthening, hydraulic rod is rotated by connecting block to drive fixed rod, fixed rod is rotated to drive support block, support block is rotated to drive machine arm, to adjust the purpose of motor and paddle inclination angle.

[0004] However, hydraulic or pneumatic adjusting system needs to be equipped with hydraulic pump, compressor, gas tank, oil pipe, gas pipe, valve and other various equipment, increases the overall weight and volume of unmanned aerial vehicle, also improves the difficulty of design and manufacture, and there are problems such as liquid leakage and gas leakage. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at providing a kind of unmanned aerial vehicle coaxial machine arm, to solve the current hydraulic or pneumatic adjusting system needs to be equipped with hydraulic pump, compressor, gas tank, oil pipe, gas pipe, valve and other various equipment, increases the overall weight and volume of unmanned aerial vehicle, also improves the difficulty of design and manufacture, and there are problems such as liquid leakage and gas leakage.

[0006] To achieve the above-mentioned purpose, the utility model realizes by following technical scheme: a kind of unmanned aerial vehicle coaxial machine arm, the unmanned aerial vehicle coaxial machine arm includes connecting arm, shaft arm mechanism arranged on the connecting arm, and motor arranged on the shaft arm mechanism;

[0007] Shaft arm mechanism includes connecting block and a plurality of connecting sleeves arranged on the connecting block, the connecting sleeves are vertically arranged on the side of the connecting block close to the connecting arm, and the connecting sleeves are provided with equal spacing embedding spaces;

[0008] Among them, the two sides of the connecting arm are provided with shaft arm mechanism, the connecting sleeve is sleeved on the connecting arm, and is arranged in the embedding space between the connecting sleeves of the oppositely arranged connecting blocks, and is connected by fastener uniformly.

[0009] In summary, according to the utility model discloses a kind of unmanned aerial vehicle coaxial machine arm, by using two identical shaft arm mechanism is fixed on connecting arm, by using the way of mutual embedding of connecting sleeve, the structural stability of shaft arm is improved, while the upper and lower two shaft arms of co-axial can be realized with angle and without angle free switching by rotating direction installation, the inclination angle of shaft arm can be freely defined in processing, reduce the cost of mold opening.Specifically, the shaft arm mechanism includes connecting block and a plurality of connecting sleeves provided on the connecting block, the connecting sleeves are vertically provided on one side of the connecting block close to the connecting arm, and the connecting sleeves are provided with an embedding space with equal spacing between them;Wherein, the two sides of the connecting arm are provided with shaft arm mechanism, the connecting sleeves are provided on the connecting arm, and are provided in the embedding space between the connecting sleeves of the oppositely arranged connecting blocks, and are connected uniformly by fasteners.

[0010] According to one aspect of the above technical solution, the connecting block is symmetrically provided with a recess for connecting the motor, and the recess is provided with a first connecting hole for connecting the motor.

[0011] According to one aspect of the above technical solution, the first connecting hole is aligned with the embedding space.

[0012] According to one aspect of the above technical solution, the connecting block is further provided with an annular space, and the annular space is opposite to the bottom of the motor for heat dissipation.

[0013] According to one aspect of the above technical solution, the connecting sleeve includes symmetrically arranged embracing hoops, and any one of the embracing hoops is attached to the circumferential surface of the connecting arm.

[0014] According to one aspect of the above technical solution, the embracing hoops are provided with second connecting holes and third connecting holes, the second connecting holes are used to connect the shaft arm mechanisms on both sides, and the third connecting holes are used to connect the embracing hoops on the same connecting sleeve.

[0015] According to one aspect of the above technical solution, the second connecting holes are arranged along the axial direction of the connecting arm, and the third connecting holes are arranged along the radial direction of the connecting arm.

[0016] According to one aspect of the above technical solution, the embracing hoops on different connecting sleeves are connected by a fastener.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, some will become apparent from the following description, or will be understood through practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure of the unmanned aerial vehicle coaxial machine arm in an embodiment of the utility model is shown in the figure;

[0019] Figure 2 Assembling view of the shaft arm mechanism in one embodiment of the present application;

[0020] Figure 3 Structure view of the shaft arm mechanism in one embodiment of the present application;

[0021] Figure 4 Structure view of the connecting block in one embodiment of the present application.

[0022] Explanation of the symbols of the components in the drawings:

[0023] Connecting arm 100, motor 200, shaft arm mechanism 300, connecting block 310, recessed part 311, first connecting hole 312, annular space 313, connecting sleeve 320, embedded space 321, embracing hoop 322, second connecting hole 323, third connecting hole 324. DETAILED DESCRIPTION

[0024] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. The drawings show several embodiments of the present application. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please refer to Figures 1-4As shown is a structure schematic view of a coaxial machine arm of a unmanned aerial vehicle provided in an embodiment of the utility model, the coaxial machine arm of the unmanned aerial vehicle includes connecting arm 100, shaft arm mechanism 300 arranged on connecting arm 100 and motor 200 arranged on shaft arm mechanism 300, wherein:

[0028] In order to connect motor 200 and connecting arm 100, shaft arm mechanism 300 includes connecting block 310 connected on motor 200 and several connecting sleeves 320 arranged on connecting block 310, several connecting sleeves 320 are vertically arranged on the side of connecting block 310 close to connecting arm 100, and meanwhile, equal-spacing embedding space 321 is arranged between connecting sleeves 320.It is worth mentioning that shaft arm mechanism 300 is arranged on both sides of connecting arm 100, that is, two groups of connecting sleeves 320 of shaft arm mechanism 300 are sleeved on connecting arm 100, and the connecting sleeves 320 of the two groups of shaft arm mechanism 300 are embedded in the embedding space 321 between the connecting sleeves 320 of the opposite connecting block 310, and the two groups of connecting sleeves 320 are connected into a whole along the length direction of connecting arm 100 through a fastener.

[0029] In order to connect motor 200 and provide enough space for heat dissipation of motor 200, recessed part 311 for connecting motor 200 is symmetrically arranged at the corner of connecting block 310, first connecting hole 312 for connecting motor 200 is arranged in recessed part 311.Because protruding connecting pin is arranged at the bottom of motor 200 around the center of the bottom, recessed part 311 is arranged on connecting block 310, and first connecting hole 312 is arranged in recessed part 311, so that motor 200 and connecting block 310 are fixedly connected through a fastener.Meanwhile, in order to facilitate assembly, the position of first connecting hole 312 is aligned with embedding space 321 between connecting sleeves 320.

[0030] Further, annular space 313 is arranged in the middle of four recessed parts 311, when motor 200 is assembled to connecting block 310, annular space 313 is opposite to the bottom of motor 200, so that part of heat can be dissipated through annular space 313 of the bottom when motor 200 works.

[0031] In order to fix the connecting block 310 on the connecting arm 100, the connecting sleeve 320 comprises symmetrical embracing hoops 322, any of which is attached to the circumferential surface of the connecting arm 100. The embracing hoops 322 are provided with second connecting holes 323 and third connecting holes 324, the second connecting holes 323 are used for connecting the shaft arm mechanisms 300 on both sides, and the third connecting holes 324 are used for connecting the embracing hoops 322 on the same connecting sleeve 320. The second connecting holes 323 are arranged along the axial direction of the connecting arm 100, and the third connecting holes 324 are arranged along the radial direction of the connecting arm 100. The embracing hoops 322 on different connecting sleeves 320 are connected by a fastener.

[0032] In the embodiment, the coaxial arms adopt a symmetrical structure, share a profile mold, and reduce the complexity of the structure. The adjustment mode can be processed and adjusted according to actual needs, so that one mold realizes multiple modes. The 0-degree mode can also be realized by adjusting the installation mode of the two arms, so that one processing mode realizes two arm modes. The two arms are distributed with uniform pin holes on two sides, and the two arms can be connected by a pin shaft in a hinged manner, so as to improve the overall strength and stability. At the same time, by adjusting the height of the second connecting hole 323, the inclination angle of the shaft arm mechanism 300 is determined.

[0033] In summary, according to the coaxial arm of the unmanned aerial vehicle provided by the present application, the motor is fixed on the connecting arm by using two same shaft arm mechanisms, the structure stability of the shaft arm is improved by using the embedded mode of the connecting sleeves, the coaxial upper and lower shaft arms can realize free switching of the angle and non-angle by rotating the installation direction, the inclination angle of the shaft arm can be freely defined in processing, and the mold opening cost is reduced. Specifically, the shaft arm mechanism comprises a connecting block and a plurality of connecting sleeves arranged on the connecting block, the connecting sleeves are vertically arranged on one side of the connecting block close to the connecting arm, and the connecting sleeves are arranged with embedded spaces with equal spacing; wherein the connecting arm is provided with the shaft arm mechanism on both sides, the connecting sleeves are sleeved on the connecting arm, and are arranged in the embedded spaces between the connecting sleeves of the opposite connecting blocks, and are uniformly connected by fasteners.

[0034] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, several deformations and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A coaxial drone arm, comprising: The unmanned aerial vehicle coaxial arm includes a connecting arm, a shaft arm mechanism arranged on the connecting arm, and a motor arranged on the shaft arm mechanism; The shaft arm mechanism includes a connecting block and a plurality of connecting sleeves arranged on the connecting block, the connecting sleeves are vertically arranged on one side of the connecting block close to the connecting arm, and equal-spacing embedding spaces are arranged between the connecting sleeves; Wherein, the connecting arm is provided with shaft arm mechanisms on both sides, the connecting sleeves are arranged on the connecting arm and embedded in the embedding spaces between the connecting sleeves of the oppositely arranged connecting blocks, and are uniformly connected through fasteners.

2. The unmanned aerial vehicle coaxial rotor arm of claim 1, wherein, The connecting block is provided with recesses for connecting the motor at two opposite corners, and the recesses are provided with first connecting holes for connecting the motor.

3. The unmanned aerial vehicle coaxial rotor arm of claim 2, wherein, The first connecting holes are arranged in alignment with the embedding spaces.

4. The unmanned aerial vehicle coaxial rotor arm of claim 3, wherein, The connecting block is further provided with an annular space opposite to the bottom of the motor for heat dissipation of the motor.

5. The unmanned aerial vehicle coaxial rotor arm of claim 1, wherein, The connecting sleeve includes symmetrically arranged embracing hoops, and any embracing hoop is attached to the circumferential surface of the connecting arm.

6. The unmanned aerial vehicle coaxial rotor arm of claim 5, wherein, The embracing hoops are provided with second connecting holes and third connecting holes, the second connecting holes are used for connecting the shaft arm mechanisms on both sides, and the third connecting holes are used for connecting the embracing hoops on the same connecting sleeve.

7. The unmanned aerial vehicle coaxial rotor arm of claim 6, wherein, The second connecting holes are arranged in the axial direction of the connecting arm, and the third connecting holes are arranged in the radial direction of the connecting arm.

8. The unmanned aerial vehicle coaxial rotor arm of claim 7, wherein, The embracing hoops on different connecting sleeves are connected through a fastener.

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