WO2020037459A1

WO2020037459A1 - Rotating assembly and mounting method therefor, motor, pan-tilt, and unmanned aerial vehicle

Info

Publication number: WO2020037459A1
Application number: PCT/CN2018/101321
Authority: WO
Inventors: 褚宏鹏; 郭善光
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2018-08-20
Filing date: 2018-08-20
Publication date: 2020-02-27
Also published as: CN110313116A; CN110313116B

Abstract

A rotating assembly and mounting method therefor, a motor, a pan-tilt, and an unmanned aerial vehicle. The rotating assembly comprises a stator (1), a rotor (2), and a bearing (3). The rotor (2) is provided with a rotating shaft (4). The stator (1) is sleeved on the rotating shaft (4). An accommodating space (5) is formed between the stator (1) and the rotating shaft (4). The bearing (3) is accommodated in the accommodating space (5). The stator (1) is rotatably connected to the rotating shaft (4) by means of the bearing (3). Anti-drop structures (41) are provided on an end portion of the rotating shaft (4). An opening is further formed between the end portion and the stator (1). The opening is communicated with the accommodating space (5). The anti-drop structures (41) have a stop state. When in the stop state, the anti-drop structures (41) are stopped at the opening to stop the bearing (3) within the accommodating space (5).

Description

Rotary component and installation method thereof, motor, gimbal and unmanned aerial vehicle

Technical field

The invention relates to the field of power structures, in particular to a rotating component and a method for installing the same, a motor, a gimbal and an unmanned aerial vehicle.

Background technique

In the related art, the stator of the rotating component and the rotating shaft are rotationally connected through a bearing to ensure smooth rotation. During the rotation of the rotating component, if the bearing falls off between the stator and the rotating shaft, the stator and the rotating shaft will be separated, which will cause damage to the rotating component. For this reason, the bearing needs to be designed to prevent disengagement, usually a nut or a spring is designed at the end of the shaft to block the bearing to prevent it from falling off. However, this will make the height of the rotating component as a whole higher, which is not conducive to the miniaturization of the product. In addition, nuts or retaining springs can increase costs.

Summary of the Invention

The invention provides a rotating assembly and a mounting method thereof, a motor, a gimbal and an unmanned aerial vehicle.

Specifically, the present invention is implemented by the following technical solutions:

According to a first aspect of the present invention, there is provided a rotating assembly including a stator, a rotor, and a bearing, wherein the rotor is provided with a rotating shaft;

The stator is sleeved on the rotating shaft, a receiving space is formed between the stator and the rotor, the bearing is received in the receiving space, and the stator and the rotating shaft are rotationally connected through the bearing;

An end of the rotation shaft is provided with a detachment prevention structure, and an opening is formed between one end of the rotation shaft provided with the detachment prevention structure and the stator, and the opening is in communication with the accommodation space;

The anti-dropout structure includes a stop state, wherein when the anti-dropout structure is in the stop state, the anti-dropout structure is stopped at the opening to stop the bearing in the accommodation space. .

According to a second aspect of the present invention, there is provided a motor including:

Housing; and

A rotating component provided in the housing, the rotating component including a stator, a rotor, and a bearing, wherein the rotor is provided with a rotating shaft;

The stator is sleeved on the rotating shaft, an accommodating space is formed between the stator and the rotating shaft, the bearing is accommodated in the accommodating space, and the stator and the rotating shaft are rotationally connected through the bearing;

According to a third aspect of the present invention, a pan / tilt head is provided, including:

support;

A motor for driving the bracket to rotate; and

A bearing member connected to the bracket and used for bearing a photographing device;

Wherein, the motor includes a housing and a rotating component, and the rotating component is disposed in the housing; the rotating component includes a stator, a rotor, and a bearing, and the rotor is provided with a rotating shaft;

According to a fourth aspect of the present invention, an unmanned aerial vehicle is provided, including:

body;

A propeller provided on the fuselage; and a motor for driving the propeller to rotate to drive the fuselage to move;

According to a fifth aspect of the present invention, a method for installing a rotating assembly is provided. The rotating assembly includes a stator, a rotor, and a bearing, the rotor is provided with a rotating shaft, and an end portion of the rotating shaft is provided with a detachment prevention structure; the method includes:

The stator and the rotating shaft are transferred through the bearing, so that the stator is sleeved on the rotating shaft, wherein an accommodation space is formed between the stator and the rotating shaft, and the anti-detachment is provided on the rotating shaft An opening is formed between an end of one end of the structure and the stator, and the opening is in communication with the accommodation space;

Applying pressure to the detachment prevention structure, so that the detachment prevention structure is in a stop state and the detachment prevention structure is stopped at the opening, so as to stop the bearing in the receiving space.

It can be seen from the technical solutions provided by the embodiments of the present invention that the present invention directly provides a detachment prevention structure at the end of the rotating shaft, and stops the bearing in the accommodation space formed between the stator and the rotating shaft, thereby preventing the rotating component from rotating , The bearing is detached from the accommodating space and the rotating component is damaged. In addition, an anti-off structure is directly provided at the end of the rotating shaft, which is beneficial to the miniaturization design of the rotating component and reduces the cost.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present invention more clearly, the drawings used in the description of the embodiments are briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative labor.

FIG. 1 is a perspective view of a rotating component in an embodiment of the present invention in a state where an anti-off structure is in a stop state;

FIG. 2 is a partially enlarged view of FIG. 1;

FIG. 3 is a perspective view of the rotating assembly in another direction in a state where the detachment prevention structure is in a stop state according to an embodiment of the present invention; FIG.

4 is a cross-sectional view taken along the F'-F 'section of Fig. 3;

5 is a partially enlarged view of FIG. 4;

FIG. 6 is a perspective view of a rotating assembly in an embodiment in which a detachment prevention structure is in a penetrating state; FIG.

7 is a partially enlarged view of FIG. 6;

FIG. 8 is a perspective view of the rotating assembly in another direction in a state where the anti-dropout structure is in a penetrating state in an embodiment of the present invention; FIG.

Fig. 9 is a sectional view taken along the line F-F in Fig. 8;

10 is a partially enlarged view of FIG. 9;

11 is a perspective view of an unmanned aerial vehicle in an embodiment of the present invention;

FIG. 12 is a method flowchart of a method for installing a rotating component in an embodiment of the present invention.

Reference numerals: 100: fuselage; 200: propeller; 300: motor; 1: stator; 2: rotor; 3: bearing; 4: shaft; 41: anti-detachment structure; 5: accommodation space; 400: head; 500 : Shooting device.

detailed description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The rotating assembly and its installation method, motor, gimbal and unmanned aerial vehicle of the present invention will be described in detail below with reference to the drawings. In the case of no conflict, the features of the following embodiments and implementations can be combined with each other.

Example one

With reference to FIGS. 1 to 5, a first embodiment of the present invention provides a rotating assembly. The rotating assembly may include a stator 1, a rotor 2, and a bearing 3. The rotor 2 is provided with a rotating shaft 4. The stator 1 of this embodiment is sleeved on the rotating shaft 4. A receiving space 5 is formed between the stator 1 and the rotating shaft 4, and a bearing 3 is received in the receiving space 5. The stator 1 and the rotating shaft 4 are rotatably connected through the bearing 3. Further, an end of the rotation shaft 4 is provided with a detachment prevention structure 41, and an opening is formed between one end of the rotation shaft 4 provided with the detachment prevention structure 41 and the stator 1, and the opening communicates with the accommodation space 5. Furthermore, the detachment prevention structure 41 of this embodiment includes a stop state. Wherein, when the detachment prevention structure 41 is in a stop state, the detachment prevention structure 41 is stopped at the opening to stop the bearing 3 in the accommodation space 5 so as to prevent the bearing 3 from falling out of the opening.

Further, in the embodiment of the present invention, a detachment prevention structure 41 is directly provided at the end of the rotating shaft 4 to stop the bearing 3 in the accommodation space 5 formed between the stator 1 and the rotor 2 so as to prevent the rotating assembly from rotating, The bearing 3 is detached from the receiving space 5 and the rotating component is damaged. In addition, the detachment prevention structure 41 is directly provided at the end of the rotating shaft 4, which is beneficial to the miniaturization design of the rotating assembly and reduces the cost.

In this embodiment, the stator 1 may have a circular ring shape, or may have other irregular shapes similar to a circular ring shape. Further, the rotor 2 may have a circular ring shape, or may have other irregular shapes similar to a circular ring shape. The rotating shaft 4 is cylindrical.

In this embodiment, the central axes of the stator 1, the rotor 2, and the rotating shaft 4 are the same, that is, the stator 1, the rotor 2, and the rotating shaft 4 are coaxially disposed.

In some embodiments, the rotor 2 and the rotating shaft 4 may be integrally provided. In other embodiments, the rotor 2 and the rotating shaft 4 are separately provided, and the rotor 2 and the rotating shaft 4 are connected. Optionally, the rotor 2 and the rotating shaft 4 may be riveted, screwed, snapped, inserted, or other conventional methods. Connect with each other.

With reference to FIG. 2, FIG. 4, and FIG. 5, in this embodiment, when the detachment prevention structure 41 is in a stop state, the detachment prevention structure 41 is bent relative to the rotation shaft 4. Specifically, the detachment prevention structure 41 is bent relative to the rotation shaft 4. It is located at the opening to stop the bearing 3 in the receiving space 5. The detachment prevention structure 41 of this embodiment is bent with respect to the rotation shaft 4 so as to stop at the opening and prevent the bearing 3 from falling out of the opening. Specifically, when the detachment prevention structure 41 is in a stop state, the detachment prevention structure 41 is vertically bent with respect to the rotation shaft 4.

Further, when the detachment prevention structure 41 in this embodiment is in a stop state, the detachment prevention structure 41 can limit the bearing 3 in the accommodation space 5 and prevent the bearing 3 from falling out of the opening. Further, the rotating shaft 4 and the stator 1 can be rotationally connected through the bearing 3 at all times, so that the rotating shaft 4 can be prevented from being separated from the stator 1, and the rotating shaft 4 can be limited in the stator 1.

In addition, in combination with FIG. 6 to FIG. 10, the detachment prevention structure 41 of this embodiment further includes a wearing state. The bearing 3 further includes an inner ring. When the detachment prevention structure 41 is in a penetrating state, the detachment prevention structure 41 can penetrate the inner ring of the bearing 3 so that the bearing 3 enters the accommodation space 5 and is sleeved on the rotating shaft 4. When the detachment prevention structure 41 in this embodiment is in a penetrating state, the detachment prevention structure 41 will not affect the installation between the bearing 3 and the stator 1 and the rotating shaft 4. Specifically, when the detachment prevention structure 41 is in the wearing state, the detachment prevention structure 41 is inserted into the inner ring of the bearing 3 so that the inner ring of the bearing 3 is sleeved on the outside of the rotating shaft 4.

In this embodiment, the assembly between the rotating shaft 4, the bearing 3, and the stator 1 is completed with the anti-detachment structure 41 in a penetrating state. After the assembly between the rotating shaft 4, the bearing 3, and the stator 1 is completed, the bearing is installed in the bearing. After 3 enters the accommodating space 5 and is sleeved on the rotating shaft 4, pressure can be applied to the detachment prevention structure 41 to cause the detachment prevention structure 41 to deform and change from the wearing state to the stop state. Specifically, pressure may be applied to the detachment prevention structure 41 by pressing, tapping, or other operation methods, so as to deform the detachment prevention structure 41.

Optionally, the detachment prevention structure 41 is deformed by applying pressure on the detachment prevention structure 41 by a jig, and the detachment state is changed to a stop state.

The detachment prevention structure 41 may be a sheet-like structure or other shapes. In this embodiment, the detachment prevention structure 41 is a sheet-like structure. On the one hand, the sheet-shaped anti-dropout structure 41 has a small volume, which is conducive to the miniaturization design of the rotating component, and reduces the weight of the rotating component, and meets some devices that are more sensitive to volume and weight (such as gimbal 400 or unmanned aerial vehicles). The demand for rotating components; on the other hand, when the sheet-like detachment prevention structure 41 is in a stop state, the surface of the detachment prevention structure 41 and the end of the rotating shaft 4 are substantially on the same plane, so that the height of the rotation component is not increased. Next, the anti-off design of the bearing 3 is realized. In addition, when a pressure is applied to the sheet-like detachment prevention structure 41, it is easier to deform and change from the wearing state to the stop state. The rotating shaft 4 of this embodiment has a circular ring shape, and the anti-detachment structure 41 is a ring-shaped sheet structure, which is convenient to cooperate with the circular rotating shaft 4.

The specific position where the anti-dropout structure 41 is provided at the end of the rotating shaft 4 can be selected according to needs. For example, the anti-dropout structure 41 can be provided at the edge of the end of the rotating shaft 4 or other areas of the end of the rotating shaft 4. In this embodiment, the detachment prevention structure 41 is provided at the edge of the end of the rotating shaft 4 (the outer edge is referred to in this embodiment). In this way, even if the detachment prevention structure 41 is designed to be small in size, it can be stopped at the opening.

In this embodiment, the detachment prevention structure 41 is integrally formed on the end of the rotating shaft 4 to increase the strength of the detachment prevention structure 41. Of course, in other embodiments, the detachment preventing structure 41 and the rotating shaft 4 may be provided separately, and the detaching preventing structure 41 is directly connected to the end of the rotating shaft 4 by riveting, screwing, snapping, plugging, or other methods.

In addition, the anti-dropout structure 41 may include one, two, three, four, or more, which may be specifically selected according to needs. In this embodiment, the detachment prevention structure 41 includes at least two, so that the bearing 3 is more firmly confined in the accommodation space 5 at different positions of the opening. Further, at least two detachment preventing structures 41 are distributed along the circumferential direction of the end of the rotating shaft 4. Optionally, at least two anti-dropout structures 41 are uniformly distributed along the circumferential direction of the end portion of the rotating shaft 4. Optionally, at least two anti-dropout structures 41 are non-uniformly distributed along the circumferential direction of the end of the rotating shaft 4.

In this embodiment, the bearing 3 further includes an outer ring. In order to eliminate the axial play of the bearing 3, the inner ring of the bearing 3 is connected to the outer side wall of the rotating shaft 4, and the outer ring of the bearing 3 is connected to the inner side wall of the stator 1. The connection between the inner ring of the bearing 3 and the outer wall of the rotating shaft 4 and the outer ring of the bearing 3 and the inner wall of the stator 1 can be selected as required. For example, the bearing 3 may be connected to the rotating shaft 4 by means of glue coating or clearance fit, and the bearing 3 may also be connected to the rotating shaft 4 by other methods. In addition, the bearing 3 may be connected to the stator 1 by means of glue coating or interference fit or clearance fit, or may be connected to the stator 1 by other means.

The rotation assembly of the above embodiment can be applied to a driving device such as a motor.

The first embodiment of the present invention further provides a motor. The motor may include a housing and the rotating component of the foregoing embodiment. Wherein, the rotating component is disposed in the casing.

In one embodiment, the housing is the same component as the stator 1. In another embodiment, the housing and the stator 1 are different components, and the stator 1 is connected to the housing.

The motor of this embodiment further includes a motor spindle, and the motor spindle is disposed in the rotating shaft 4 of the rotating component.

It is worth mentioning that the motors in the above embodiments can be applied to devices such as gimbals and unmanned aerial vehicles.

Embodiment 1 of the present invention further provides a pan / tilt head. The pan / tilt head may include a bracket, the motor 300 of the above embodiment, and a bearing component. The motor is used to drive the bracket to rotate. The bearing member is connected to the bracket, and the bearing member in this embodiment is used to carry a photographing device.

The motor of this embodiment may include at least one of a yaw axis motor, a pitch axis motor, and a roll axis motor. Correspondingly, the bracket in this embodiment may include at least one of a yaw axis bracket, a pitch axis bracket, and a roll axis bracket. The yaw axis motor, the pitch axis motor, and the roll axis motor drive the yaw axis bracket, the pitch axis bracket, and the roll axis bracket to rotate correspondingly.

The gimbal of this embodiment may be a handheld gimbal, or it may be mounted on a mobile device, such as an unmanned aerial vehicle (as shown in FIG. 11), an unmanned vehicle, and the like.

Referring to FIG. 11, a first embodiment of the present invention further provides an unmanned aerial vehicle, which includes a fuselage 100, a propeller 200, and the motor 300 of the foregoing embodiment. The propeller 200 is disposed on the fuselage 100, and the motor 300 is used to drive the propeller 200 to rotate to drive the fuselage 100 to move.

The propellers 200 may include 4, 8, or other numbers.

The unmanned aerial vehicle of this embodiment may further include a gimbal 400 and a photographing device 500 mounted on the gimbal. The gimbal 400 may be a single-axis gimbal, a two-axis gimbal, or a three-axis gimbal.

In addition, the photographing device 500 in the above embodiment is not limited to a camera in the traditional sense. Specifically, the photographing device 500 may be an image capturing device or an image capturing device (such as a camera, a camcorder, an infrared image capturing device, an ultraviolet image capturing device, or the like). Equipment), audio capture devices (for example, parabolic reflector microphones), infrared camera equipment, etc.

The unmanned aerial vehicle in this embodiment may be an unmanned aerial vehicle or other unmanned aerial equipment.

Example two

FIG. 12 is a method flowchart of a method for installing a rotating component according to a second embodiment of the present invention. In combination with FIGS. 1 to 10, the rotating component of this embodiment may include a stator 1, a rotor 2, and a bearing 3. The rotor 2 is provided with a rotating shaft 4, and an end of the rotating shaft 4 is provided with an anti-detachment structure 41. For the specific structure of the rotating component, refer to the foregoing first embodiment, and details are not described herein again.

Referring to FIG. 12, the method may include the following steps:

Step S1201: The stator 1 and the rotating shaft 4 are transferred through the bearing 3 so that the stator 1 is sleeved on the rotating shaft 4. Among them, a receiving space 5 is formed between the stator 1 and the rotating shaft 4, and the end of the rotating shaft 4 is provided with one end An opening is formed between the part and the stator 1, and the opening communicates with the accommodation space 5;

The connection method between the bearing 3 and the stator 1 and the rotating shaft 4 can be selected according to requirements. Optionally, step S1201 connects the inner ring of the bearing 3 to the rotating shaft 4 through gluing, clearance fit, or other connection methods, and the The outer ring of the bearing 3 is connected to the stator 1 with an interference fit, a clearance fit, or other connection methods.

Further, step S1201 further includes: when the detachment prevention structure 41 is in a penetrating state, inserting the detachment prevention structure 41 through the inner ring of the penetrating bearing 3 so that the bearing 3 is sleeved on the rotating shaft 4 and accommodated in the accommodation space 5 . When the detachment prevention structure 41 in this embodiment is in a penetrating state, the detachment prevention structure 41 will not affect the installation between the bearing 3 and the stator 1 and the rotating shaft 4. Specifically, when the detachment prevention structure 41 is in the wearing state, the detachment prevention structure 41 is inserted into the inner ring of the bearing 3 so that the inner ring of the bearing 3 is sleeved on the outside of the rotating shaft 4.

Step S1202: Apply pressure to the detachment prevention structure 41 so that the detachment prevention structure 41 is in a stop state and stop the detachment prevention structure 41 at the opening to stop the bearing 3 in the accommodation space 5.

In one embodiment, the assembly between the rotating shaft 4, the bearing 3, and the stator 1 is completed with the anti-detachment structure 41 in a penetrating state. After the assembly between the rotating shaft 4, the bearing 3, and the stator 1 is completed, After the bearing 3 enters the accommodating space 5 and is sleeved on the rotating shaft 4, it can apply pressure to the detachment prevention structure 41 to deform the detachment prevention structure 41 and change from the wearing state to the stop state.

In step S1202, a method of applying pressure to the detachment prevention structure 41 may be selected from extrusion, knocking, or other methods. In this embodiment, the detachment prevention structure 41 is deformed by squeezing the detachment prevention structure 41 until the detachment prevention structure 41 is bent with respect to the rotating shaft 4, so that the detachment prevention structure 41 is stopped at the opening to stop the bearing 3 in the accommodation space 5. in. Specifically, squeezing the detachment prevention structure 41 deforms the detachment prevention structure 41 until the detachment prevention structure 41 bends vertically with respect to the rotation shaft 4, so that the detachment prevention structure 41 is stopped at the opening to stop the bearing 3 in the accommodation space 5. .

Further, when the detachment prevention structure 41 is pressed so that the detachment prevention structure 41 is in a stop state, the detachment prevention structure 41 can limit the bearing 3 in the accommodation space 5 and prevent the bearing 3 from falling out of the opening. Further, the rotating shaft 4 and the stator 1 can be rotationally connected through the bearing 3 at all times, so that the rotating shaft 4 can be prevented from being separated from the stator 1, and the rotating shaft 4 can be limited in the stator 1.

It should be noted that in this article, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations There is any such actual relationship or order among them. The term "comprising," "including," or any other variation thereof, is intended to encompass non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed Elements, or elements that are inherent to such a process, method, article, or device. Without more restrictions, the elements defined by the sentence "including a ..." do not exclude the existence of other identical elements in the process, method, article, or equipment including the elements.

The rotary assembly and its installation method, motor, gimbal, and unmanned aerial vehicle provided by the embodiments of the present invention have been described in detail above. The specific examples are used herein to explain the principle and implementation of the present invention. The description is only used to help understand the method of the present invention and its core idea; meanwhile, for a person of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application, as described above The contents of this description should not be construed as limiting the invention.

Claims

A rotating component, comprising a stator, a rotor and a bearing, wherein the rotor is provided with a rotating shaft;

The stator is sleeved on the rotating shaft, an accommodating space is formed between the stator and the rotating shaft, the bearing is accommodated in the accommodating space, and the stator and the rotating shaft are rotationally connected through the bearing;

An end of the rotation shaft is provided with a detachment prevention structure, and an opening is formed between one end of the rotation shaft provided with the detachment prevention structure and the stator, and the opening is in communication with the accommodation space;

The anti-dropout structure includes a stop state, wherein when the anti-dropout structure is in the stop state, the anti-dropout structure is stopped at the opening to stop the bearing in the accommodation space. .
The rotary assembly according to claim 1, wherein when the anti-dropout structure is in the stop state, the anti-dropout structure is bent with respect to the rotation shaft, and the anti-dropout structure is bent with respect to the rotation shaft A folded portion is located at the opening to stop the bearing in the receiving space.
The rotation assembly according to claim 2, wherein when the anti-dropout structure is in the stop state, the anti-dropout structure is vertically bent with respect to the rotation axis.
The rotary assembly according to claim 1, wherein the rotor and the rotating shaft are integrally formed and provided; or

The rotor is provided separately from the rotating shaft, and the rotor is connected to the rotating shaft.
The rotary assembly according to claim 1, wherein the bearing further comprises an inner ring, and the detachment prevention structure further comprises a penetrating state, wherein when the detachment preventing structure is in the penetrating state, all the The anti-dropout structure can pass through the inner ring of the bearing, so that the bearing enters the receiving space and is sleeved on the rotating shaft.
The rotating assembly according to claim 5, wherein the detachment prevention structure is deformed when pressure is applied, and is changed from the wearing state to the stop state.
The rotary assembly according to claim 1, wherein the anti-dropout structure is a sheet structure.
The rotary assembly according to claim 7, wherein the rotating shaft is a circular ring, and the detachment preventing structure is a ring-shaped sheet structure.
The rotary assembly according to claim 1, wherein the anti-dropout structure is provided at an edge of an end of the rotating shaft.
The rotary assembly according to claim 1, wherein the anti-detachment structure is integrally formed at an end of the rotating shaft.
The rotating assembly according to claim 1, wherein the anti-dropout structure includes at least two.
The rotating assembly according to claim 11, wherein at least two of the detachment preventing structures are distributed along a circumferential direction of an end portion of the rotating shaft.
The rotating assembly according to claim 1, wherein the bearing includes an outer ring and an inner ring, the inner ring of the bearing is connected to an outer side wall of the rotating shaft, and the outer ring of the bearing is connected to the stator The inner wall is connected.
The rotary assembly according to claim 13, wherein the bearing is connected to the rotating shaft by means of glue or clearance fit, and is connected to the stator by means of glue or interference fit or clearance fit.
A motor characterized by comprising:

Housing; and

A rotating component provided in the housing, the rotating component including a stator, a rotor, and a bearing, wherein the rotor is provided with a rotating shaft;

The stator is sleeved on the rotating shaft, an accommodating space is formed between the stator and the rotating shaft, and the bearing is accommodated in the accommodating space;

An end of the rotation shaft is provided with a detachment prevention structure, and an opening is formed between one end of the rotation shaft provided with the detachment prevention structure and the stator, and the opening is in communication with the accommodation space. The stator and the rotating shaft are rotationally connected through the bearing;

The anti-dropout structure includes a stop state, wherein when the anti-dropout structure is in the stop state, the anti-dropout structure is stopped at the opening to stop the bearing in the accommodation space. .
The motor according to claim 15, characterized in that, when the detachment prevention structure is in the stop state, the detachment prevention structure is bent with respect to the rotation shaft, and the detachment prevention structure is bent with respect to the rotation shaft A portion is located at the opening to stop the bearing in the receiving space.
The motor according to claim 16, wherein when the anti-dropout structure is in the stop state, the anti-dropout structure is vertically bent with respect to the rotation shaft.
The motor according to claim 15, wherein the rotor and the rotating shaft are integrally formed; or

The rotor is provided separately from the rotating shaft, and the rotor is connected to the rotating shaft.
The motor according to claim 15, wherein the bearing further comprises an inner ring, and the detachment prevention structure further comprises a penetrating state, wherein when the detachment preventing structure is in the penetrating state, the bearing The anti-detachment structure can penetrate the inner ring of the bearing, so that the bearing enters the receiving space and is sleeved on the rotating shaft.
The motor according to claim 19, wherein the detachment prevention structure is deformed when pressure is applied, and is changed from the wearing state to the stop state.
The motor according to claim 15, wherein the anti-dropout structure is a sheet-like structure.
The motor according to claim 21, wherein the rotating shaft has a circular ring shape, and the detachment prevention structure is a ring-shaped sheet structure.
The motor according to claim 15, wherein the detachment preventing structure is provided at an edge of an end portion of the rotating shaft.
The motor according to claim 15, wherein the anti-dropout structure is integrally formed at an end of the rotating shaft.
The motor according to claim 15, wherein the anti-dropout structure includes at least two.
The motor according to claim 25, wherein at least two of the detachment preventing structures are distributed in a circumferential direction of an end portion of the rotating shaft.
The motor according to claim 15, wherein the bearing includes an outer ring and an inner ring, the inner ring of the bearing is connected to an outer side wall of the rotating shaft, and the outer ring of the bearing and an inner side of the stator Wall connection.
The motor according to claim 27, wherein the bearing is connected to the rotating shaft by means of glue or clearance fit, and is connected to the stator by means of glue or interference fit or clearance fit.
A gimbal is characterized in that it includes:

support;

A motor for driving the bracket to rotate; and

A bearing member connected to the bracket and used for bearing a photographing device;

Wherein, the motor includes a housing and a rotating component, and the rotating component is disposed in the housing. The rotating component includes a stator, a rotor, and a bearing, and the rotor is provided with a rotating shaft;

The stator is sleeved on the rotating shaft, an accommodating space is formed between the stator and the rotating shaft, the bearing is accommodated in the accommodating space, and the stator and the rotating shaft are rotationally connected through the bearing;

An end of the rotation shaft is provided with a detachment prevention structure, and an opening is also formed between the end of the rotor provided with the detachment prevention structure and the stator, and the opening is in communication with the accommodation space;

The anti-dropout structure includes a stop state, wherein when the anti-dropout structure is in the stop state, the anti-dropout structure is stopped at the opening to stop the bearing in the accommodation space. .
The gimbal according to claim 29, wherein when the anti-dropout structure is in the stop state, the anti-dropout structure is bent with respect to the rotation shaft, and the anti-dropout structure is bent with respect to the rotation shaft A folded portion is located at the opening to stop the bearing in the receiving space.
The pan / tilt head according to claim 30, wherein when the detachment prevention structure is in the stop state, the detachment prevention structure is vertically bent with respect to the rotation axis.
The gimbal of claim 29, wherein the rotor and the rotating shaft are integrally formed and provided; or,

The rotor is provided separately from the rotating shaft, and the rotor is connected to the rotating shaft.
The gimbal according to claim 29, wherein the bearing further comprises an inner ring, and the detachment prevention structure further comprises a penetrating state, wherein when the detachment preventing structure is in the penetrating state, all the The anti-dropout structure can pass through the inner ring of the bearing, so that the bearing enters the receiving space and is sleeved on the rotating shaft.
The gimbal according to claim 33, wherein the detachment prevention structure is deformed when pressure is applied, and is changed from the wearing state to the stop state.
The gimbal according to claim 29, wherein the detachment prevention structure is a sheet structure.
The gimbal according to claim 35, wherein the rotating shaft has a circular ring shape, and the detachment preventing structure is a ring-shaped sheet structure.
The gimbal of claim 29, wherein the anti-dropout structure is provided on an edge of an end of the rotating shaft.
The gimbal of claim 29, wherein the anti-detachment structure is integrally formed at an end of the rotating shaft.
The gimbal according to claim 29, wherein the anti-dropout structure includes at least two.
The pan / tilt head according to claim 39, wherein at least two of the detachment preventing structures are distributed along a circumferential direction of an end portion of the rotating shaft.
The gimbal of claim 29, wherein the bearing includes an outer ring and an inner ring, the inner ring of the bearing is connected to an outer side wall of the rotating shaft, and the outer ring of the bearing is connected to the stator The inner wall is connected.
The gimbal according to claim 41, wherein the bearing is connected to the rotating shaft by means of glue or clearance fit, and is connected to the stator by means of glue or interference fit or clearance fit.
The gimbal of claim 29, wherein the motor comprises at least one of a yaw axis motor, a pitch axis motor, and a roll axis motor.
An unmanned aerial vehicle is characterized by comprising:

body;

A propeller provided on the fuselage; and

A motor for driving the propeller to rotate to drive the fuselage to move;

Wherein, the motor includes a housing and a rotating component, and the rotating component is disposed in the housing. The rotating component includes a stator, a rotor, and a bearing, and the rotor is provided with a rotating shaft;

The stator is sleeved on the rotating shaft, an accommodating space is formed between the stator and the rotating shaft, the bearing is accommodated in the accommodating space, and the stator and the rotating shaft are rotationally connected through the bearing;

An end of the rotation shaft is provided with a detachment prevention structure, and an opening is formed between one end of the rotation shaft provided with the detachment prevention structure and the stator, and the opening is in communication with the accommodation space;

The anti-dropout structure includes a stop state, wherein when the anti-dropout structure is in the stop state, the anti-dropout structure is stopped at the opening to stop the bearing in the accommodation space. .
The unmanned aerial vehicle according to claim 44, wherein when the anti-dropout structure is in the stop state, the anti-dropout structure is bent with respect to the rotation shaft, and the anti-dropoff structure is relatively with respect to the rotation shaft The bent portion is located at the opening to stop the bearing in the receiving space.
The unmanned aerial vehicle according to claim 45, wherein when the anti-fall structure is in the stop state, the anti-fall structure is vertically bent with respect to the rotation axis.
The unmanned aerial vehicle according to claim 44, wherein the rotor and the rotating shaft are formed integrally; or

The rotor is provided separately from the rotating shaft, and the rotor is connected to the rotating shaft.
The unmanned aerial vehicle according to claim 44, wherein the bearing further comprises an inner ring, and the detachment preventing structure further comprises a wearing state, wherein when the detaching preventing structure is in the wearing state, The anti-detachment structure can pass through the inner ring of the bearing, so that the bearing enters the accommodation space and is sleeved on the rotating shaft.
The unmanned aerial vehicle according to claim 48, wherein the detachment prevention structure is deformed when pressure is applied to change from the wearing state to the stop state.
The unmanned aerial vehicle according to claim 44, wherein the detachment prevention structure is a sheet structure.
The unmanned aerial vehicle according to claim 50, wherein the rotating shaft has a circular ring shape, and the anti-dropout structure is a ring-shaped sheet structure.
The unmanned aerial vehicle according to claim 44, wherein the detachment prevention structure is provided at an edge of an end of the rotating shaft.
The unmanned aerial vehicle according to claim 44, wherein the detachment preventing structure is integrally formed at an end of the rotating shaft.
The unmanned aerial vehicle according to claim 44, wherein the anti-falloff structure includes at least two.
The unmanned aerial vehicle according to claim 54, wherein at least two of the detachment preventing structures are distributed along a circumferential direction of an end portion of the rotating shaft.
The unmanned aerial vehicle according to claim 44, wherein the bearing includes an outer ring and an inner ring, the inner ring of the bearing is connected to an outer side wall of the rotating shaft, and the outer ring of the bearing is connected to the stator Inside wall connection.
The unmanned aerial vehicle according to claim 56, characterized in that the bearing is connected to the rotating shaft by glue coating or clearance fit, and is connected to the stator by glue coating or interference fit.
A method for installing a rotating component, characterized in that the rotating component includes a stator, a rotor, and a bearing, wherein the rotor is provided with a rotating shaft, and an end portion of the rotating shaft is provided with an anti-detachment structure;

The stator and the rotating shaft are transferred through the bearing, so that the stator is sleeved on the rotating shaft, wherein an accommodation space is formed between the stator and the rotating shaft, and the anti-detachment is provided on the rotating shaft An opening is formed between an end of one end of the structure and the stator, and the opening is in communication with the accommodation space;

Applying pressure to the detachment prevention structure, so that the detachment prevention structure is in a stop state and the detachment prevention structure is stopped at the opening, so as to stop the bearing in the receiving space.
The method according to claim 58, wherein the applying pressure to the detachment prevention structure causes the detachment prevention structure to be in a stop state and causes the detachment prevention structure to stop at the opening, so that Stopping the bearing in the receiving space includes:

Squeezing the detachment prevention structure deforms the detachment prevention structure until the detachment prevention structure bends relative to the rotating shaft, so that the detachment prevention structure is stopped at the opening to stop the bearing at all positions Mentioned accommodation space.
The method according to claim 59, wherein the squeezing the detachment prevention structure causes the detachment prevention structure to be deformed until the detachment prevention structure is bent relative to the rotating shaft to stop the detachment prevention structure. At the opening to stop the bearing in the receiving space, including:

Squeezing the detachment prevention structure deforms the detachment prevention structure until the detachment prevention structure is bent perpendicularly to the rotation axis, so that the detachment prevention structure is stopped at the opening to stop the bearing at the opening. The receiving space.
The method according to claim 58, wherein said transferring said stator and said shaft through said bearing comprises:

Connecting the inner ring of the bearing to the rotating shaft by gluing or clearance fit;

The outer ring of the bearing is connected to the stator in a rubberized or interference fit or clearance fit manner.
The method according to claim 58, wherein said transferring said stator and said shaft through said bearing comprises:

When the detachment prevention structure is in a penetrating state, the detachment prevention structure is threaded through an inner ring of the bearing, so that the bearing is sleeved on the rotating shaft and accommodated in the accommodation space.