A rudder arm, a rudder and a UAV

Abstract

The utility model relates to rudder motor technical field especially relates to a rudder motor arm, rudder motor and unmanned plane, the rudder motor arm includes: the arm body for installing on the rudder disc, a plurality of unloading long hole, the arm body is set up on and is along the arm body edge and sets up when being impacted by external force, and the impact force exceeds the maximum limit of unloading long hole deformation, and the arm body will break in the position of unloading long hole, so there will be no external force to the rudder disc and rudder motor body inside exert force, thereby effectively avoid the damage of external force to the rudder disc and rudder motor body inside transmission component. Rudder motor arm initiative protects rudder motor body, and the problem of gear damage in rudder motor body inside caused by instantaneous overload is avoided greatly. By sacrificing the arm body to avoid the more serious problem of gear damage in rudder motor body inside caused by instantaneous overload, since the arm body is relatively low cost to rudder motor body, the cost of replacing the arm body is far lower than the cost of replacing rudder motor body, thereby effectively reduce the maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of servo motor technology, and in particular to a servo motor arm, a servo motor, and an unmanned aerial vehicle. Background Technology

[0002] In the overall structure of a drone, the role of the servo motor is irreplaceable. However, the price of a complete servo motor is relatively expensive. When the aircraft malfunctions and crashes, the metal servo motor arm is too strong and not easily deformed, causing the impact force to be borne by the gear plate inside the servo motor, which can cause the servo motor to jam or burn out. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, this utility model provides a servo arm that avoids more serious problems such as damage to the internal gears of the servo due to instantaneous overload by sacrificing the arm body.

[0005] This utility model also provides a servo motor.

[0006] This utility model also provides an unmanned aerial vehicle (UAV).

[0007] According to a first aspect of the present invention, a servo arm is used for mounting on a servo motor, the servo motor including a servo motor body and a servo disk mounted on the output end of the servo motor body, and the servo arm includes: Arm, used for mounting on the rudder; Multiple long stress relief holes are installed through the boom and along the edge of the boom.

[0008] Optionally, it also includes: The first connecting part is formed on one side of the arm body and is used for detachable connection with the rotating edge of the rudder. The second connecting part is formed on the arm body and on the side away from the first connecting part, and is used to connect with the servo linkage. Among them, multiple stress-relieving long holes are symmetrically arranged between the first connecting part and the second connecting part.

[0009] Optionally, the shortest distance between the first connecting part and the unloading elongated hole is the first distance, and the shortest distance between the second connecting part and the unloading elongated hole is the second distance, with the first distance and the second distance being equal.

[0010] Optionally, the multiple unloading elongated holes may have the same or different shapes.

[0011] Optionally, the first connecting part includes: Multiple first connection holes are formed at equal intervals on one side of the arm body; The first fastener passes through the first connecting hole and is securely connected to the rudder.

[0012] Optionally, the second connecting part includes: The second connecting hole is formed on the arm body and on the side away from the first connecting part; The second fastener is fastened to the second connecting hole and connected to the spherical bearing of the servo linkage.

[0013] Optionally, the arm body is in the shape of an isosceles triangle, and the first connecting part is provided along one side of the bottom edge of the arm body.

[0014] Optionally, the arm body is made of one of POM (polyoxymethylene), polyamide, and polyphenylene sulfide.

[0015] A servo motor according to a second aspect of the present invention includes: Servo motor body; The servo disc is detachably mounted on the output end of the servo motor body; The steering wheel includes: The main body of the disc is coaxially and detachably mounted on the output end of the servo motor body; Multiple mounting holes are arranged in a ring at equal intervals around the center of the main body of the disc, and the first connecting part is connected to the mounting holes. The raised disc is coaxially fixedly mounted on the main body of the disc. The servo arm, including the first aspect or various embodiments, has its edge near the second connecting portion adapted to the edge of the raised disc.

[0016] A drone according to a third aspect of the present invention includes a servo arm as described in the first aspect or a servo as described in the second aspect.

[0017] One of the above technical solutions has at least the following advantages or beneficial effects: According to an embodiment of this utility model, a servo arm includes an arm body and a stress-relieving elongated hole. When the arm body is subjected to an external impact force exceeding the maximum deformation limit of the stress-relieving elongated hole, the arm body will break at the stress-relieving elongated hole location. This prevents further external forces from exerting force on the servo disc and the servo body's internal components, effectively avoiding damage to the servo disc and the servo body's internal transmission components. The servo arm's active protection mechanism greatly avoids problems such as damage to the servo body's internal gears due to instantaneous overload, sacrificing the arm body to prevent more serious problems like gear damage caused by instantaneous overload. Since the arm body is relatively inexpensive compared to the servo body, replacing the arm body is far less expensive than replacing the servo body, thus effectively reducing maintenance costs.

[0018] The servo motor and UAV provided in this embodiment of the utility model are equipped with the servo arm mentioned above. Since the servo arm has the above-mentioned technical effects, the servo motor and UAV equipped with the servo arm should also have the corresponding technical effects. Attached Figure Description

[0019] Figure 1 This invention provides an embodiment of an angular structure with a rudder disk, as shown in the schematic diagram. Figure 2 A schematic diagram of another angle structure with a rudder disk according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of a servo motor structure according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of a servo arm structure according to an embodiment of the present invention is shown.

[0020] Explanation of reference numerals in the attached figures 100 - Servo arm, 200 - Servo, 300 - Servo disc, 400 - Servo linkage; 110 - Arm body, 120 - Force relief elongated hole, 130 - First connecting part, 140 - Second connecting part; 310 - Circular body, 320 - Mounting hole, 330 - Raised disc; 131 - First connecting hole, 132 - First fastener; 141 - Second connecting hole, 142 - Second fastener. Detailed Implementation

[0021] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Currently, servo motors play an irreplaceable role in the overall structure of drones, yet they are relatively expensive. When a drone malfunctions and the servo motor is subjected to an impact, the existing metal servo motor arms are too strong to easily deform, and the impact force is borne by the gear plate inside the servo motor, leading to serious problems such as servo motor jamming or burning out. This not only damages the servo motor and increases repair costs but may also affect the normal operation of the drone afterward.

[0023] To address at least one of the technical problems existing in the prior art or related technologies, this utility model provides a servo arm, which includes an arm body and a stress-relieving elongated hole. When the arm body is impacted by an external force, the hollow structure of the stress-relieving elongated hole deforms. This deformation process effectively disperses the impact force, distributing the impact force originally concentrated on the arm body and servo main body to various parts of the stress-relieving elongated hole, while absorbing some impact energy, thereby reducing the direct impact of external forces on the arm body and the internal transmission components of the servo main body. When the arm body is impacted by an external force that exceeds the maximum deformation limit of the stress-relieving elongated hole, the arm body will break at the stress-relieving elongated hole, thus preventing further external forces from exerting force on the servo disc and the internal transmission components of the servo main body. This effectively avoids damage to the servo disc and the internal transmission components of the servo main body caused by external forces, and greatly avoids problems such as damage to the internal gears of the servo main body due to instantaneous overload. This is the active protection mechanism of the servo arm in this technical solution, which avoids more serious problems such as damage to the internal gears of the servo main body due to instantaneous overload by sacrificing the arm body. Since the cost of the arm is relatively lower than that of the servo motor body, the cost of replacing the arm is much lower than the cost of replacing the servo motor body, thus effectively reducing maintenance costs.

[0024] The following description, with reference to the accompanying drawings, describes some embodiments of the servo arm 100, servo motor, and drone provided according to the present invention.

[0025] See Figures 1 to 4 The present invention provides a servo arm 100 for mounting on a servo motor. The servo motor includes a servo motor body 200 and a servo disc 300 mounted on the output end of the servo motor body 200. The servo arm 100 includes: an arm body 110 for mounting on the servo disc 300; and multiple force-relieving elongated holes 120 that are disposed through the arm body 110 and along the edge of the arm body 110.

[0026] The servo arm 100 provided in this embodiment is applied to a servo motor and includes an arm body 110 and a force-relieving elongated hole 120. The arm body 110 is the main structure of the servo arm 100. Its function is to be installed on the servo disc 300 and to act as a bridge connecting the servo motor body 200 and other related components such as the servo motor linkage 400. It transmits the power of the servo motor body 200 to the servo motor linkage 400 and the corresponding actuator to realize motion control. Multiple force-relieving elongated holes 120 are provided through the arm body 110 and distributed along the edge of the arm body 110.

[0027] For example, when the servo is working, the servo body 200 drives the servo disk 300 to rotate. With the arm 110 mounted on the servo disk 300, the arm 110 also rotates with the servo disk 300. A stress-relieving elongated hole 120 is provided on the arm 110 and located at its edge. When the arm 110 is subjected to an external impact, the stress-relieving elongated hole 120 can disperse and absorb the impact force through the deformation of its hollow structure. When the impact force exceeds the maximum deformation limit of the stress-relieving elongated hole 120, the arm 110 preferentially breaks at the location of the stress-relieving elongated hole 120. After the arm 110 breaks, the servo disk 300 is no longer connected to the servo linkage 400.

[0028] For example, multiple stress-relieving elongated holes 120 are distributed along the edge of the arm body 110, which can effectively relieve stress under external force impact in different directions, thereby improving the impact resistance of the servo arm 100 under complex working conditions. Setting stress-relieving elongated holes 120 on the arm body 110 can reduce its weight, improve the overall lightweight of the arm body 110, and reduce the load on the arm body 110.

[0029] As can be seen from the above, when the arm body 110 is impacted by an external force, the hollow structure of the stress relief long hole 120 will deform. This deformation process can effectively disperse the impact force, dispersing the impact force that was originally concentrated on the arm body 110 and the servo motor body 200 to various parts of the stress relief long hole 120, while absorbing some of the impact energy, thereby reducing the direct impact of the external force on the arm body 110 and the internal transmission components of the servo motor body 200.

[0030] Furthermore, when the impact force exceeds the maximum deformation limit of the unloading elongated hole 120, the arm 110 will break at the position of the unloading elongated hole 120, thereby preventing external forces from being applied to the rudder disc 300 and the servo motor body 200. This effectively avoids damage to the transmission components inside the rudder disc 300 and the servo motor body 200 caused by external forces, and greatly avoids problems such as damage to the internal gears of the servo motor body 200 due to instantaneous overload. This is the active protection mechanism of the servo arm 100 in this technical solution. By sacrificing the arm 110, more serious problems such as damage to the internal gears of the servo motor body 200 due to instantaneous overload are avoided. Since the cost of the arm 110 is relatively low compared to the servo motor body 200, the cost of replacing the arm 110 is far lower than the cost of replacing the servo motor body 200, thereby effectively reducing maintenance costs.

[0031] For example, by utilizing the deformation and breakage mechanism of the stress-relieving long hole 120, the impact of external forces on the internal transmission components of the servo motor body 200 can be effectively reduced, preventing malfunctions such as jamming or burning of the servo motor body 200, extending the service life of the servo motor body 200, and improving the reliability and stability of the UAV. In the event of an impact, only the lower-cost arm body 110 needs to be replaced, instead of replacing the expensive servo motor body 200, which greatly reduces maintenance costs and improves the economic efficiency of using the UAV.

[0032] See Figures 1 to 4 In some instances, the servo arm 100 further includes: a first connecting portion 130 formed on one side of the arm body 110 for detachable connection with the rotating edge of the servo disc 300; and a second connecting portion 140 formed on the arm body 110 and on the side away from the first connecting portion 130 for connection with the servo linkage 400; wherein, a plurality of force-relieving elongated holes 120 are symmetrically arranged between the first connecting portion 130 and the second connecting portion 140.

[0033] In this technical solution, the servo arm 100 also includes a first connecting part 130 and a second connecting part 140. The first connecting part 130 is formed on one side of the arm body 110 and is detachably connected to the rotating edge of the servo disk 300, which facilitates maintenance, replacement or adjustment between the arm body 110 and the servo disk 300. The second connecting part 140 is formed on the side of the arm body 110 away from the first connecting part 130 and is used to connect with the servo linkage 400. Through the connection between the second connecting part 140 and the servo linkage 400, the power of the servo body 200 can be transmitted to the servo linkage 400.

[0034] For example, the stress-relieving elongated hole 120 is disposed between the first connecting part 130 and the second connecting part 140. First, both the first connecting part 130 and the second connecting part 140 are disposed on the arm body 110, and the first connecting part 130 is connected to the rudder disk 300, and the second connecting part 140 is connected to the servo linkage 400. During the operation of the UAV, the first connecting part 130 and the second connecting part 140 are easily subjected to large external forces. By placing the stress-relieving elongated hole 120 between them, it can play a timely role in dispersing and absorbing the impact force, protecting the first connecting part 130, the second connecting part 140, and the connected components such as the rudder disk 300 and the servo linkage 400. Multiple stress-relieving elongated holes 120 are symmetrically disposed between the first connecting part 130 and the second connecting part 140. The symmetrical arrangement can make the stress-relieving elongated holes 120 more uniform in dispersing and absorbing the impact force.

[0035] In some instances, the shapes of multiple unloading elongated holes 120 may be the same or different.

[0036] For example, when multiple stress relief elongated holes 120 have the same shape, stress relief elongated holes 120 with the same shape are easy to process using standardized processes, while ensuring the performance consistency of each stress relief elongated hole 120.

[0037] For example, when multiple stress relief holes 120 have different shapes, stress relief holes 120 of different shapes can be selected and combined according to the stress characteristics, functional requirements and overall structural limitations of different parts of the servo arm 100. For example, in areas of the arm 110 where the stress is greater, stress relief holes 120 with better energy absorption can be set; while in areas where the stress is less, stress relief holes 120 with relatively simple shapes can be used to achieve reasonable allocation of resources.

[0038] The impact-dissipating elongated holes 120 of the same shape exhibit good regularity in dispersing impact force. Due to their similar structure and performance, they deform in a similar manner when subjected to impact, thereby evenly dispersing the impact force to various parts of the arm 110. This uniform dispersion helps to avoid local stress concentration. Impact-dissipating elongated holes 120 of different shapes can utilize their unique structural characteristics to achieve more complex impact dispersion effects. By reasonably combining impact-dissipating elongated holes 120 of different shapes, the servo arm 100 can disperse and absorb impact force in multiple dimensions, improving the overall buffering performance.

[0039] See Figures 1 to 4 In some instances, the shortest distance between the first connecting part 130 and the unloading elongated hole 120 is the first distance, and the shortest distance between the second connecting part 140 and the unloading elongated hole 120 is the second distance, with the first distance and the second distance being equal.

[0040] In this technical solution, when the first distance and the second distance are equal, the stress relief elongated hole 120 is in a symmetrical position between the first connecting part 130 and the second connecting part 140. During the operation of the UAV, the servo arm 100 will be subjected to impact forces from different directions. When the first distance and the second distance are the same, the stress relief elongated hole 120 can more evenly disperse the impact forces from the directions of the first connecting part 130 and the second connecting part 140. Since the stress relief elongated hole 120 can evenly disperse the impact forces, the stress borne by the first connecting part 130 and the second connecting part 140 is relatively balanced.

[0041] See Figures 1 to 4 In some instances, the first connection portion 130 includes: a plurality of first connection holes 131, equidistantly formed on one side of the arm body 110; and a first fastener 132, passing through the first connection holes 131, and fastened to the rudder disk 300.

[0042] In this technical solution, the first connecting part 130 includes a first connecting hole 131 and a first fastener 132. The multiple first connecting holes 131 are formed on one side of the arm body 110 and are equidistantly distributed, so that each connecting point is evenly stressed on the arm body 110, avoiding local stress concentration caused by uneven force. The multiple first connecting holes 131 provide multiple connection points between the servo arm 100 and the servo disk 300, increasing the reliability and stability of the connection.

[0043] The first fastener 132 is fastened to the servo disk 300 through the first connecting hole 131, realizing a detachable connection between the servo arm 100 and the servo disk 300. When it is necessary to disassemble and replace the arm 110 on the servo disk 300, the operator can easily disassemble and install the arm 110, improving work efficiency. At the same time, after the first fastener 132 passes through the first connecting hole 131, it is fastened to the servo disk 300, which can ensure that the rotation of the servo disk 300 can be accurately transmitted to the servo arm 100.

[0044] For example, including but not limited to, a first fastener 132 can be threadedly connected to the rudder disc 300 through a first connecting hole 131.

[0045] See Figures 1 to 4 In some instances, the second connection portion 140 includes: a second connection hole 141 formed on the arm body 110 and on the side away from the first connection portion 130; and a second fastener 142 fastened to the second connection hole 141 and connected to the spherical bearing of the servo linkage 400.

[0046] In this technical solution, the second connecting part 140 includes a second connecting hole 141 and a second fastener 142. The second connecting hole 141 is disposed on the arm body 110 and located on the side away from the first connecting part 130. During the process of the servo motor body 200 transmitting force to the arm body 110, the force is transmitted from the position of the first connecting part 130 to the position of the second connecting part 140. Through the above-mentioned arrangement, the second connecting part 140 can ensure that after the arm body 110 is connected to the servo disk 300 and the servo motor linkage 400 respectively, it can form a reasonable structure in space, which is conducive to the transmission of force.

[0047] The second fastener 142 is fastened to the second connecting hole 141. At the same time, the second fastener 142 is also connected to the spherical bearing of the servo linkage 400. The spherical bearing of the servo linkage 400 allows the servo linkage 400 to rotate relative to the arm body 110.

[0048] Examples include, but are not limited to, the second fastener 142 being threadedly connected to the second connecting hole 141.

[0049] During the operation of the servo motor, the rotation of the servo arm 100 needs to be converted into the movement of the servo linkage 400. This motion transmission is achieved through the second connecting part 140 to meet the normal operation requirements of other components connected to the servo linkage 400. See Figures 1 to 4 In some instances, the arm body 110 is an isosceles triangle, and the first connecting part 130 is provided along one side of the bottom edge of the arm body 110.

[0050] In this technical solution, the isosceles triangle has a highly stable geometric shape in the mechanical structure. By setting the first connecting part 130 along one side of the base of the arm 110, the force transmitted from the rudder 300 to the arm 110 can be distributed more evenly on the arm 110. The first connecting part 130 being set along one side of the base allows the rotation of the rudder 300 to be transmitted more smoothly to the servo linkage 400 through the arm 110. The structure of the isosceles triangle and the position of the base ensure a reasonable force transmission path and reduce the loss and interference of force during transmission.

[0051] In some instances, the arm body 110 is made of thermoplastic engineering plastic; For example, thermoplastic engineering plastics possess excellent mechanical properties, high temperature resistance, corrosion resistance and chemical stability, electrical insulation, and lightweight characteristics. Furthermore, thermoplastic engineering plastics exhibit good processing performance, allowing for convenient and rapid manufacturing of the arm body 110 through various molding processes such as injection molding and extrusion, thereby improving production efficiency and reducing production costs. The properties of thermoplastic engineering plastics can be adjusted by modifying their formulation and additives, allowing for adjustments to the strength, hardness, toughness, and other performance indicators of the plastic to adapt to different working environments and conditions, based on the specific application requirements of the servo arm 100. Compared to metal materials, thermoplastic engineering plastics are lighter in weight. In weight-sensitive equipment such as drones, using the arm body 110 made of thermoplastic engineering plastics can effectively reduce the overall weight of the equipment, improving its flight performance and energy efficiency.

[0052] Since the arm body 110 is made of thermoplastic engineering plastic, it has the beneficial effects of the aforementioned thermoplastic engineering plastic, which will not be elaborated here.

[0053] Furthermore, the arm body 110 is made of one of POM (polyoxymethylene), polyamide, and polyphenylene sulfide.

[0054] For example, POM (polyoxymethylene) possesses high strength, hardness, and rigidity, which allows the arm 110 to maintain good shape and structural stability when subjected to torque and impact forces transmitted by the servo motor body 200. POM also exhibits excellent self-lubricating properties, reducing friction and wear during the connection and movement of the arm 110 with components such as the servo disc 300 and servo linkage 400. This self-lubricating property reduces friction between components, minimizes energy loss, extends component lifespan, and reduces maintenance costs. Furthermore, POM demonstrates good resistance to many chemicals, maintaining stable performance in certain chemical environments. In practical use, servos may be exposed to various environmental conditions, such as moisture and oil. The POM-made arm 110 can resist the corrosive effects of these chemicals, ensuring its performance remains unaffected and improving the reliability and durability of the servo motor system.

[0055] For example, the main advantages of polyamide include high strength, wear resistance and fatigue resistance; polyamide also has good corrosion resistance and self-lubricating properties, low coefficient of friction, and can maintain stable performance under dry friction or lubrication conditions. When the arm body 110 is made of polyamide, the arm body 110 also has the above-mentioned advantages of polyamide.

[0056] For example, polyphenylene sulfide (PPS), as a high-performance thermoplastic engineering plastic, has excellent high-temperature resistance. When exposed to high-temperature environments, it can still maintain its structural strength and mechanical properties without significant impact. PPS also has excellent chemical stability, with good resistance to inorganic acids, alkalis, salts, and most organic solvents. Even when exposed to rainwater, fog, or certain chemical pollutants, it can effectively resist erosion and maintain its structural integrity and functional stability. When the arm 110 is made of PPS, the arm 110 also has the above-mentioned advantages of PPS.

[0057] For example, the arm body 110 is preferably made of POM (polyoxymethylene).

[0058] See Figures 1 to 3 According to a second aspect embodiment of the present invention, a servo motor includes: a servo motor body 200; a servo disk 300 detachably mounted on the output end of the servo motor body 200; the servo disk 300 includes: a disc body 310 coaxially and detachably mounted on the output end of the servo motor body 200; a plurality of mounting holes 320, equidistantly arranged in a ring around the center of the disc body 310 at the edge of the disc body 310, a first connecting portion 130 connected to the mounting holes 320; a raised disc 330 coaxially fixedly mounted on the disc body 310; and a servo arm 100 including the first aspect or various embodiments, the edge near the second connecting portion 140 being adapted to the edge of the raised disc 330.

[0059] The servo provided in this embodiment includes a servo body 200, a servo disc 300, and a servo arm 100 as described in the first aspect or various embodiments. The servo disc 300 includes a disc body 310, a mounting hole 320, and a raised disc 330. The servo body 200 is the power source responsible for outputting power. The servo disc 300 is installed at the output end of the servo body 200 and plays the role of transmitting power. The servo arm 100 is connected to the servo disc 300 and the servo linkage 400 to further transmit the power of the servo body 200, thereby realizing the control of other components.

[0060] The disc body 310 is coaxially and detachably mounted on the output end of the servo body 200, ensuring that the disc body 310 can remain concentric with the output shaft of the servo body 200. This allows the rotational power output by the servo body 200 to be accurately transmitted to the disc body 310, avoiding vibration, wear, and power loss caused by eccentricity. The detachable mounting also facilitates the replacement and maintenance of the servo disc 300. When the servo disc 300 is damaged or needs to be replaced with a different specification of servo disc 300 according to different working requirements, the operation can be carried out easily.

[0061] Multiple mounting holes 320 are arranged in a ring at equal intervals on the disk body 310 and near the edge, with the center of the disk body 310 as the center. The first connecting part 130 is connected to the mounting holes 320. The servo arm 100 can be tightly connected with the servo disk 300 to transmit the rotational motion of the servo disk 300 to the servo arm 100, thereby driving the servo linkage 400 and other components to move.

[0062] The raised disc 330 is coaxially fixed on the disc body 310. The rotation center of the raised disc 330 is consistent with that of the disc body 310. The edge of the raised disc 330 can play a certain limiting role on the servo arm 100, preventing the servo arm 100 from excessively deviating or shaking during the movement, thus ensuring the stability and accuracy of the movement of the servo arm 100.

[0063] For example, the raised disc 330 is disc-shaped, and the edge near the second connecting portion 140 is arc-shaped, which is adapted to the edge of the disc-shaped raised disc 330.

[0064] According to a third aspect of the present invention, a drone includes a servo arm of the first aspect or a servo of the second aspect.

[0065] Since the dicing machine of this embodiment includes the servo motor in the first aspect described above, it has the beneficial effects of any of the above embodiments, which will not be repeated here.

[0066] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0067] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0068] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0069] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "exemplary embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A servo arm, characterized in that, For mounting on a servo motor, the servo motor includes a servo motor body and a servo disc mounted on the output end of the servo motor body, and the servo motor arm includes: Arm, used for mounting on the rudder; Multiple stress-relieving elongated holes are provided through the arm body and along the edge of the arm body.

2. The servo arm according to claim 1, characterized in that, Also includes: A first connecting portion is formed on one side of the arm body for detachable connection with the rotating edge of the rudder disk; The second connecting part is formed on the arm body and on the side away from the first connecting part, and is used to connect with the servo linkage; The plurality of stress-relieving elongated holes are symmetrically arranged between the first connecting part and the second connecting part.

3. The servo arm according to claim 2, characterized in that: The shortest distance between the first connecting part and the long unloading hole is the first distance, and the shortest distance between the second connecting part and the long unloading hole is the second distance. The first distance and the second distance are equal.

4. The servo arm according to claim 2, characterized in that: The shapes of the multiple stress-relieving elongated holes may be the same or different.

5. The servo arm according to claim 2, characterized in that: The first connecting part includes: Multiple first connection holes are formed at equal intervals on one side of the arm body; The first fastener passes through the first connecting hole and is securely connected to the rudder disk; The second connecting part includes: The second connecting hole is formed on the arm body and on the side away from the first connecting part; The second fastener is fastened to the second connecting hole and connected to the spherical bearing of the servo linkage.

6. The servo arm according to claim 2, characterized in that: The arm body is in the shape of an isosceles triangle, and the first connecting part is provided along one side of the bottom edge of the arm body.

7. The servo arm according to any one of claims 1 to 6, characterized in that: The arm body is made of thermoplastic engineering plastic.

8. The servo arm according to claim 7, characterized in that: The arm body is made of one of POM (polyoxymethylene), polyamide, and polyphenylene sulfide.

9. A servo motor, characterized in that: include: Servo motor body; The servo disc is detachably mounted on the output end of the servo motor body; The steering wheel includes: The main body of the disc is coaxially and detachably mounted on the output end of the servo motor body; Multiple mounting holes are arranged in a ring at equal intervals around the center of the disk body, and the first connecting part is connected to the mounting holes. The raised disc is coaxially fixedly mounted on the main body of the disc. The servo arm as described in any one of claims 2, 3, and 5, wherein the side near the second connecting portion is adapted to the edge of the raised disc.

10. A drone, characterized in that, Includes the servo arm as described in any one of claims 1 to 8 or the servo as described in claim 9.

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