Lightweight rudder machine with reduced size and improved stability
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHAOYANG RADIO COMPONENT CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]当前，在诸如大疆、FPV、道通等小型无人机所应用的抛投技术领域，传统舵机抛投结构暴露出诸多弊端，在尺寸与重量方面，现有舵机抛投装置尺寸普遍较大，长度多在10cm左右，重量可达250g，这对于小型无人机有限的载重与空间而言，负担沉重，极大地压缩了无人机可搭载其他设备的空间，同时显著缩短了续航里程，严重制约了无人机执行任务的时长与灵活性，在稳定性层面，现有抛投结构的插销设计较为简易，多采用普通的直插式或简单卡扣形式，在无人机飞行过程中，尤其是遭遇复杂气流、高频振动时，插销极易松动，一旦插销松动，便可能导致挂载物品提前掉落，或者在预定抛投时刻无法顺利释放，致使抛投任务失败，严重影响无人机作业的可靠性与精准度
1、本实用新型在使用时，舵机投放器作为核心驱动部件，采用模块化设计，内部集成驱动电机、减速齿轮组和行程控制模块，驱动电机选用微型直流电机，配合减速齿轮组，可提供稳定的驱动力矩，行程控制模块通过霍尔传感器实时监测齿轮转动角度，精准控制插销的插拔行程，确保投放动作的一致性，该设计通过模块化集成，减少了零部件之间的装配间隙，提升了整体结构的紧凑性，有助于进一步缩小装置尺寸，通过模块化集成设计与轻量化材料应用，本申请的舵机抛投系统整体长度从现有技术普遍的10cm缩减至6.5cm，减少比例达35%，重量从250g降至150g，减重40%。
Smart Images
Figure CN224603189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) servo throwing structure technology, specifically a lightweight servo with reduced size and improved stability. Background Technology
[0002] The technical background of the drone servo-driven throwing structure stems from the wide application of drones in various fields, such as policing, epidemic prevention, and rescue, in which material throwing is often required.
[0003] Currently, in the field of throwing technology used by small drones such as DJI, FPV, and Autel, traditional servo-driven throwing structures have revealed many drawbacks. In terms of size and weight, existing servo-driven throwing devices are generally large, with a length of around 10cm and a weight of up to 250g. This is a heavy burden for the limited payload and space of small drones, greatly compressing the space that can carry other equipment and significantly shortening the flight range. This severely restricts the duration and flexibility of drone missions. In terms of stability, the pin design of existing throwing structures is relatively simple, mostly using ordinary straight-insertion or simple snap-fit forms. During drone flight, especially when encountering complex airflow or high-frequency vibrations, the pins are very prone to loosening. Once the pins loosen, the attached items may fall off prematurely, or the device may fail to release smoothly at the scheduled throwing time, resulting in the failure of the throwing mission and seriously affecting the reliability and accuracy of drone operations. Utility Model Content
[0004] The purpose of this invention is to provide a lightweight servo motor with reduced size and improved stability, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a lightweight servo motor with reduced size and improved stability, comprising a limiter body, wherein the limiter body includes a sleeve disposed at the end, an axial guide hole provided in the middle of the sleeve for accommodating cylindrical material, and a U-shaped connector fixedly connected to the outer circle of the sleeve, and mounting ears fixedly installed at both ends of the U-shaped connector.
[0006] Furthermore, the limiter body is disposed on one side of the end of the base plate, and the base plate is fixed to the fuselage of the FPV UAV.
[0007] Furthermore, two upright plates are fixed at the ends of the base plate, and a long arm plate is fixedly installed on the inner side of one of the upright plates.
[0008] Furthermore, the mounting ears at both ends of the U-shaped connector are screwed into the long arm plate, and the screw holes on the back of the U-shaped connector are screwed into the upright plate.
[0009] Furthermore, a servo motor dispenser is installed in the space between the inner side of the U-shaped connector recess and the upright plate, and the output end of the servo motor dispenser is connected to a servo motor pin.
[0010] Furthermore, the servo pin is radially installed in the guide hole of the sleeve, and the servo pin completes the radial insertion and removal action in the guide hole of the sleeve under the transmission action of the servo release device.
[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. In use, the servo motor launcher, as the core driving component, adopts a modular design, integrating a drive motor, a reduction gear set, and a stroke control module. The drive motor is a micro DC motor, which, together with the reduction gear set, provides stable driving torque. The stroke control module monitors the gear rotation angle in real time through a Hall sensor, precisely controlling the insertion and removal stroke of the pin to ensure the consistency of the launching action. This modular integration design reduces the assembly gap between parts, improves the compactness of the overall structure, and helps to further reduce the size of the device. Through modular integration design and the application of lightweight materials, the overall length of the servo motor launching system of this application is reduced from the common 10cm in the prior art to 6.5cm, a reduction of 35%, and the weight is reduced from 250g to 150g, a reduction of 40%.
[0012] 2. In use, the U-shaped connector achieves the limiting installation of the servo motor dispenser through the space between the inner side of the notch and the vertical plate. The axial guide hole in the middle of the sleeve is used to accommodate cylindrical materials and keep the thrown object stable in the air. By preventing shaking, the risk of the pin loosening is reduced. In use, the servo motor pin completes the radial insertion and extraction action in the guide hole of the sleeve under the transmission action of the servo motor dispenser, thereby realizing the throwing of cylindrical materials and improving the reliability of UAV throwing operations. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is a schematic diagram of the base plate structure of this utility model; Figure 3 This is a schematic diagram of the limiter body structure of this utility model.
[0014] In the diagram: 1. Limiter body; 101. Sleeve; 102. U-shaped connector; 103. Mounting ear; 2. Base plate; 3. Vertical plate; 4. Long arm plate; 5. Servo release device; 6. Servo pin. Detailed Implementation
[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0016] like Figures 1 to 3 As shown, a lightweight servo motor with reduced size and improved stability includes a limiter body 1. The limiter body 1 includes a sleeve 101 disposed at the end. An axial guide hole is provided in the middle of the sleeve 101 for accommodating cylindrical materials. A U-shaped connector 102 is fixedly connected to the outer circle of the sleeve 101, and mounting ears 103 are fixedly installed at both ends of the U-shaped connector 102. The specific operation is as follows: the U-shaped connector 102 achieves the limiting installation of the servo motor dispenser 5 through the space between the inner side of the notch and the vertical plate 3. The axial guide hole in the middle of the sleeve 101 is used to accommodate cylindrical materials and keep the thrown object stable in the air, thereby reducing the risk of the pin loosening by preventing shaking. like Figures 1 to 3 As shown, the limiter body 1 is set on one side of the end of the base plate 2, and the base plate 2 is fixed to the fuselage of the FPV UAV. Two upright plates 3 are fixed at the end of the base plate 2, and a long arm plate 4 is fixedly installed on the inner side of one upright plate 3. The mounting ears 103 at both ends of the U-shaped connector 102 are screwed to the long arm plate 4, and the screw hole on the back of the U-shaped connector 102 is screwed to the upright plate 3. A servo motor dispenser 5 is installed in the space between the inner side of the U-shaped connector 102 recess and the upright plate 3. A servo motor pin 6 is driven to the output end of the servo motor dispenser 5. The servo motor pin 6 is radially installed in the guide hole of the sleeve 101, and the servo motor pin 6 completes the radial insertion and removal action in the guide hole of the sleeve 101 under the transmission action of the servo motor dispenser 5. The specific operation is as follows: When in use, the servo pin 6 completes the radial insertion and extraction action in the guide hole of the sleeve 101 under the transmission action of the servo dispenser 5, thereby realizing the throwing of cylindrical materials and improving the reliability of UAV throwing operations.
[0017] Working principle: The U-shaped connector 102 achieves the limiting installation of the servo motor dispenser 5 through the space between the inner side of the notch and the vertical plate 3. The axial guide hole in the middle of the sleeve 101 is used to accommodate cylindrical materials and keep the thrown object stable in the air. By preventing shaking, the risk of the pin loosening is reduced. When in use, the servo motor pin 6 completes the radial insertion and extraction action in the guide hole of the sleeve 101 under the transmission action of the servo motor dispenser 5, thereby realizing the throwing of cylindrical materials and improving the reliability of UAV throwing operations.
[0018] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A lightweight servo motor with reduced size and improved stability, comprising a limiter body (1), characterized in that, The limiter body (1) includes a sleeve (101) disposed at the end. An axial guide hole in the middle of the sleeve (101) is used to accommodate cylindrical materials. A U-shaped connector (102) is fixedly connected to the outer circle of the sleeve (101), and mounting ears (103) are fixedly installed at both ends of the U-shaped connector (102).
2. The lightweight servo motor with reduced size and improved stability according to claim 1, characterized in that, The limiter body (1) is located on one side of the end of the base plate (2), and the base plate (2) is fixed to the fuselage of the FPV drone.
3. The lightweight servo motor with reduced size and improved stability according to claim 2, characterized in that, The bottom plate (2) has two upright plates (3) fixed at its ends, and a long arm plate (4) is fixedly installed on the inner side of one upright plate (3).
4. A lightweight servo motor with reduced size and improved stability according to claim 3, characterized in that, The mounting ears (103) at both ends of the U-shaped connector (102) are screwed onto the long arm plate (4), and the screw holes on the back of the U-shaped connector (102) are screwed onto the upright plate (3).
5. A lightweight servo motor with reduced size and improved stability according to claim 4, characterized in that, The space between the inner side of the U-shaped connector (102) and the vertical plate (3) is limited by a servo motor release device (5), and the output end of the servo motor release device (5) is connected to a servo motor pin (6).
6. A lightweight servo motor with reduced size and improved stability according to claim 5, characterized in that, The servo pin (6) is radially installed in the guide hole of the sleeve (101), and the servo pin (6) completes the radial insertion and removal action in the guide hole of the sleeve (101) under the transmission action of the servo release device (5).