A motor limiting device based on a drone gimbal product

Abstract

This utility model relates to the field of UAV gimbal technology, and particularly to a motor limiting device based on a UAV gimbal product. The device includes a motor assembly; the motor assembly includes a rotor frame and a stator base. A limiting threaded hole is formed on the rotor frame for connecting a limiting screw. One end of the limiting screw extends into the rotor frame and rotates with the rotor frame. A protruding limiting block is provided on the stator base, positioned along the rotation trajectory of the limiting screw. Compared with existing technologies, this utility model's motor limiting device for UAV gimbal products effectively solves the problems of easy damage and aesthetic impact of external bracket limiting points, improves limiting reliability and accuracy, simplifies the external structure design of the gimbal, and facilitates the adjustment and maintenance of the limiting angle.

Description

[Technical Field] This utility model relates to the field of unmanned aerial vehicle (UAV) gimbal technology, and in particular to a motor limiting device based on UAV gimbal products. [Background Technology] The motor limiting structure of existing drone gimbal products is usually located outside the motor. The position of the external locking point is difficult to adjust, making it difficult to guarantee the accuracy of the limiting angle. In addition, the external locking point occupies extra space, increasing the complexity and size of the overall gimbal design and affecting the overall aesthetics of the gimbal. [Utility Model Content] To overcome the above problems, this utility model proposes a motor limiting device based on a drone gimbal product that can effectively solve the above problems.

[0004] The present invention provides a technical solution to solve the above-mentioned technical problems by providing a motor limiting device based on a drone gimbal product, including a first gimbal connecting arm and a second gimbal connecting arm. One end of the first gimbal connecting arm and one end of the second gimbal connecting arm are connected through a motor assembly. The other end of the first gimbal connecting arm is connected to a motor assembly, and the other end of the second gimbal connecting arm is also connected to a motor assembly. The motor assembly includes a rotor outer frame and a stator base. A limiting threaded hole is provided on the rotor outer frame for connecting a limiting screw. One end of the limiting screw extends into the rotor outer frame and rotates with the rotor outer frame. A protruding limiting block is provided on the stator base, and the limiting block is located on the rotation trajectory of the limiting screw. Preferably, the motor assembly used to connect the first gimbal connecting arm and the second gimbal connecting arm is a roll motor, the motor assembly connected to the other end of the first gimbal connecting arm is a yaw motor, and the motor assembly connected to the other end of the second gimbal connecting arm is a pitch motor.

[0005] Preferably, a drone component is connected to the yaw motor, and a camera is connected to the pitch motor.

[0006] Preferably, the limiting threaded hole includes at least one yaw motor threaded hole, at least two roll motor threaded holes and at least two pitch motor threaded holes, and the at least one yaw motor threaded hole, at least two roll motor threaded holes and at least two pitch motor threaded holes are located on the same circle.

[0007] Preferably, a marking hole is provided on one side of the limiting threaded hole, one marking hole represents the yaw motor threaded hole, two marking holes represent the roll motor threaded hole, and three marking holes represent the pitch motor threaded hole.

[0008] Preferably, a motor shaft is provided on the inner side of the rotor outer frame, a motor shaft rotation groove is provided on the stator base, and at least two bearings are fitted on the motor shaft and inserted into the motor shaft rotation groove.

[0009] Preferably, a magnet is provided on the inner side of the rotor outer frame, and a stator coil is provided on the stator base.

[0010] Preferably, the limiting block is connected to the upper edge of the motor shaft rotation groove, and the limiting block is convex in shape.

[0011] Preferably, the limiting block is made of stainless steel or steel.

[0012] Preferably, the limiting screw can be pre-applied with thread-locking adhesive or applied with glue for fixation.

[0013] Compared with the prior art, the motor limiting device based on the UAV gimbal product of this utility model is a limiting device integrated inside the brushless motor of the gimbal product. It can effectively solve the problem of easy damage to the external bracket limiting points and affect the aesthetics, improve the reliability and accuracy of the limiting, simplify the external structure design of the gimbal, and facilitate the adjustment and maintenance of the limiting angle. [Attached Image Description] Figure 1 This is a diagram showing the usage status of the motor limiting device based on the UAV gimbal product in the UAV gimbal product. Figure 2 This is a first perspective view of the motor assembly of the motor limiting device based on the UAV gimbal product of this utility model; Figure 3 This is a second perspective view of the motor assembly of the motor limiting device based on the UAV gimbal product of this utility model; Figure 4 This is an exploded view of the motor assembly of the motor limiting device based on the UAV gimbal product of this utility model; Figure 5 This is a perspective view of the stator base of the motor limiting device based on the UAV gimbal product of this utility model.

Detailed Implementation Methods

[0016] It should be noted that in this embodiment of the invention, all directional indications (such as up, down, left, right, front, back, etc.) are limited to relative positions on the specified view, rather than absolute positions.

[0017] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] Please see Figures 1 to 5 The present invention relates to a motor limiting device based on a drone gimbal product, comprising a first gimbal connecting arm 10 and a second gimbal connecting arm 20. One end of the first gimbal connecting arm 10 and one end of the second gimbal connecting arm 20 are connected by a motor assembly 50. The other end of the first gimbal connecting arm 10 is connected to a motor assembly 50, and the other end of the second gimbal connecting arm 20 is also connected to a motor assembly 50.

[0019] Among them, the motor assembly 50 used to connect the first gimbal connecting arm 10 and the second gimbal connecting arm 20 is a roll motor, the motor assembly 50 connected to the other end of the first gimbal connecting arm 10 is a yaw motor, and the motor assembly 50 connected to the other end of the second gimbal connecting arm 20 is a pitch motor.

[0020] The yaw motor is connected to a drone component 30, and the pitch motor is connected to a camera 40.

[0021] The motor assembly 50 includes a rotor frame 51 and a stator base 52. The rotor frame 51 has a limiting threaded hole for connecting a limiting screw 56. One end of the limiting screw 56 extends into the rotor frame 51 and rotates with the rotor frame 51. The stator base 52 has a protruding limiting block 521 located on the rotation trajectory of the limiting screw 56. When the limiting screw 56 rotates to the point of physical collision with the limiting block 521, the motor is forced to stop rotating.

[0022] The limiting threaded hole includes at least one yaw motor threaded hole 511, at least two roll motor threaded holes 512 and at least two pitch motor threaded holes 513, and the at least one yaw motor threaded hole 511, at least two roll motor threaded holes 512 and at least two pitch motor threaded holes 513 are located on the same circle.

[0023] When the yaw motor is in the limiting position, screw the limiting screw 56 into the threaded hole 511 of the yaw motor; when the roll motor is in the limiting position, screw the limiting screw 56 into the threaded hole 512 of the roll motor; when the pitch motor is in the limiting position, screw the limiting screw 56 into the threaded hole 513 of the pitch motor.

[0024] One side of the limiting threaded hole is provided with a marking hole 514. The different numbers of marking holes 514 are used to distinguish the yaw motor threaded hole 511, the roll motor threaded hole 512, and the pitch motor threaded hole 513. One marking hole 514 represents the yaw motor threaded hole 511, two marking holes 514 represent the roll motor threaded hole 512, and three marking holes 514 represent the pitch motor threaded hole 513.

[0025] A motor shaft 515 is provided on the inner side of the rotor outer frame 51, and a motor shaft rotation groove 522 is provided on the stator base 52. At least two bearings 55 are fitted on the motor shaft 515 and inserted into the motor shaft rotation groove 522.

[0026] A magnet 53 is provided on the inner side of the rotor outer frame 51, and a stator coil 54 is provided on the stator base 52.

[0027] The limiting block 521 is connected to the upper edge of the motor shaft rotation groove 522. The limiting block 521 is convex in shape, which is beneficial to strength while saving space as much as possible.

[0028] The limiting block 521 is made of metal, preferably stainless steel or steel.

[0029] The limiting block 521 can be integrally formed, welded, or screwed onto the stator base 52.

[0030] The threaded holes 511 for the yaw motor, 512 for the roll motor, and 513 for the pitch motor are distributed according to angular requirements.

[0031] The limiting screw 56 can be a combination of a cup-head hexagonal screw or a flat-head screw with a lock nut.

[0032] The limiting screw 56 can be pre-applied with thread-locking adhesive or applied glue for fixation, thus preventing loosening. The length of the limiting screw 56 ensures effective collision with the limiting stop 521 without interfering with internal components.

[0033] Each set of limit holes, when screwed into its corresponding screw, serves only its designated angle and does not interfere with each other. The yaw group is used for yaw limit, the roll group for roll limit, and the pitch group for pitch limit; three sets of threaded holes at different angles can be provided on a single motor, enabling versatility for three application angles. Replacing or adjusting the limiters only requires operating the screws, without disassembling or modifying the external brackets.

[0034] Compared with the prior art, the motor limiting device based on the UAV gimbal product of this utility model is a limiting device integrated inside the brushless motor of the gimbal product. It can effectively solve the problem of easy damage to the external bracket limiting points and affect the aesthetics, improve the reliability and accuracy of the limiting, simplify the external structure design of the gimbal, and facilitate the adjustment and maintenance of the limiting angle.

[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the concept of the present utility model should be included within the patent protection scope of the present utility model.

Claims

1. A motor limiting device based on a drone gimbal product, characterized in that, It includes a first gimbal connecting arm and a second gimbal connecting arm. One end of the first gimbal connecting arm and one end of the second gimbal connecting arm are connected through a motor assembly. The other end of the first gimbal connecting arm is connected to a motor assembly, and the other end of the second gimbal connecting arm is also connected to a motor assembly. The motor assembly includes a rotor frame and a stator base. The rotor frame has a limiting threaded hole for connecting a limiting screw. One end of the limiting screw extends into the rotor frame and rotates with the rotor frame. The stator base has a protruding limiting block located on the rotation trajectory of the limiting screw.

2. The motor limiting device based on a drone gimbal product as described in claim 1, characterized in that, The motor assembly used to connect the first gimbal connecting arm and the second gimbal connecting arm is a roll motor, the motor assembly connected to the other end of the first gimbal connecting arm is a yaw motor, and the motor assembly connected to the other end of the second gimbal connecting arm is a pitch motor.

3. The motor limiting device based on the UAV gimbal product as described in claim 2, characterized in that, The yaw motor is connected to a drone component, and the pitch motor is connected to a camera.

4. The motor limiting device based on the UAV gimbal product as described in claim 2, characterized in that, The limiting threaded hole includes at least one yaw motor threaded hole, at least two roll motor threaded holes and at least two pitch motor threaded holes, and the at least one yaw motor threaded hole, at least two roll motor threaded holes and at least two pitch motor threaded holes are located on the same circle.

5. The motor limiting device based on the UAV gimbal product as described in claim 4, characterized in that, One side of the limiting threaded hole is provided with a marking hole. One marking hole represents the yaw motor threaded hole, two marking holes represent the roll motor threaded hole, and three marking holes represent the pitch motor threaded hole.

6. The motor limiting device based on a drone gimbal product as described in claim 1, characterized in that, A motor shaft is provided on the inner side of the rotor outer frame, and a motor shaft rotation groove is provided on the stator base. At least two bearings are fitted on the motor shaft and inserted into the motor shaft rotation groove.

7. The motor limiting device based on a drone gimbal product as described in claim 1, characterized in that, A magnet is provided on the inner side of the rotor outer frame, and a stator coil is provided on the stator base.

8. The motor limiting device based on a drone gimbal product as described in claim 6, characterized in that, The limiting block is connected to the upper edge of the motor shaft rotation groove, and the limiting block is convex in shape.

9. The motor limiting device based on a drone gimbal product as described in claim 1, characterized in that, The limiting block is made of stainless steel or steel.

10. The motor limiting device based on a drone gimbal product as described in claim 1, characterized in that, The limiting screw can be pre-applied with thread-locking adhesive or applied with glue for fixation.

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