Motor limiting device and holder

Abstract

The utility model discloses a motor limiting device, which comprises a motor rotor and a motor stator, the motor rotor is rotatably connected with the motor stator, the motor rotor comprises a limiting seat, the motor stator comprises a base, the base is rotatably connected with the limiting seat, an accommodating space is arranged in the base, and a hollow iron core winding is arranged in the accommodating space. A hollow rotating shaft is arranged on the limiting seat and penetrates through the iron core winding, bearings are arranged on the periphery of the rotating shaft, the annular part of the limiting ring is embedded into the inner side of the iron core winding, the limiting ring is located on the periphery of one end of an outer bearing of the bearings, the periphery of the rotating shaft is sleeved with an inner bearing of the bearings, and a second limiting part is arranged on the rotating shaft. The second limiting part rotates along with the rotating shaft, and a first limiting part is arranged on the limiting ring. The annular part of the limiting ring is embedded in the inner side of the iron core winding, the strength of the limiting ring is enhanced under the support of the iron core winding, and when the first limiting part and the second limiting part abut against each other for limiting, the limiting strength reliability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of gimbal technology, and in particular to a motor limiting device and a gimbal. Background Technology

[0002] Existing motor limiting devices include a first limiting part on the motor shaft and a second limiting part on the motor stator, with the two limiting parts cooperating to limit movement. The second limiting part is located on the surface of the motor stator, but this type of limiting part suffers from insufficient strength.

[0003] Therefore, a motor limit device and a gimbal are needed to solve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A motor limiting device includes a motor rotor and a motor stator, the motor rotor and the motor stator being rotatably connected. The motor rotor includes a limiting seat, and the motor stator includes a base. The base and the limiting seat are rotatably connected. The base has a receiving space, and a hollow iron core winding is provided in the receiving space. A hollow rotating shaft is provided on the limiting seat, and the hollow rotating shaft passes through the iron core winding. A bearing is provided on the outer circumference of the rotating shaft. The annular portion of the limiting ring is embedded inside the iron core winding, and the limiting ring is located on the outer circumference of one end of the outer bearing of the bearing. The inner bearing of the bearing is sleeved on the outer circumference of the rotating shaft. A second limiting part is provided on the rotating shaft. When the rotating shaft rotates, the second limiting part rotates with the rotating shaft. A first limiting part is provided on the limiting ring. Under the action of external force, the first limiting part and the second limiting part mutually limit each other.

[0006] Preferably, the center of the accommodating space of the base has a connecting seat, the iron core winding is disposed between the inner wall of the base and the connecting seat, the connecting seat has a third protrusion, the limiting ring has a groove on the side opposite to the first limiting part, the third protrusion is matched and connected with the groove, the limiting ring is installed on the inner wall of the iron core winding and matched and connected with the connecting seat.

[0007] Preferably, the first limiting part of the limiting ring has a stepped structure, and during assembly, the stepped part of the first limiting part engages and is fixed with the inside of the iron core winding.

[0008] Preferably, the first limiting part of the limiting ring is provided with a groove, and the second limiting part is a second protrusion, which is matched and connected with the groove; or the first limiting part of the limiting ring is a first protrusion, and the second limiting part is a second protrusion, which abuts against and limits the second limiting part; or the first limiting part is a protrusion, and the second limiting part is provided with a groove, which is matched and connected with the first protrusion.

[0009] A gimbal includes the above-mentioned motor limit device.

[0010] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0011] This invention uses a limiting ring whose annular portion is embedded inside the iron core winding. With the support of the iron core winding, the strength of the limiting ring is enhanced, thereby enhancing the strength of the first limiting part. When the first limiting part and the second limiting part mutually limit each other, the strength and reliability of the limiting are enhanced. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the motor limiting device of this utility model;

[0014] Figure 2 This is an exploded structural diagram of the motor limiting device of this utility model.

[0015] Explanation of main component symbols: 1. Base; 2. Limiting seat; 4. Limiting ring; 5. Bearing; 6. Iron core winding; 21. Hollow rotating shaft; 211. Second limiting part; 41. First limiting part; 11. Connecting seat; 111. Third protrusion.

[0016] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present invention. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish different objects and not to describe a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are used. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] Please see Figure 1-2 This utility model provides a motor limiting device, including a motor rotor and a motor stator. The motor rotor and the motor stator are rotatably connected. The motor rotor includes a limiting seat 2, and the motor stator includes a base 1. The base 1 and the limiting seat 2 are rotatably connected. The base 1 has a receiving space, and a hollow iron core winding 6 is provided in the receiving space. A hollow rotating shaft 21 is provided on the limiting seat 2. The hollow rotating shaft 21 passes through the iron core winding 6. A bearing 5 is provided on the outer periphery of the hollow rotating shaft 21. The annular part of the limiting ring 4 is embedded in the inner side of the iron core winding 6, and the limiting ring 4 is located on the outer periphery of one end of the outer bearing of the bearing 5. The inner bearing of the bearing 5 is sleeved on the outer periphery of the hollow rotating shaft 21. A second limiting part 211 is provided on the hollow rotating shaft 21. When the hollow rotating shaft 21 rotates, the second limiting part rotates with the rotating shaft 21. A first limiting part 41 is provided on the limiting ring 4. Under the action of external force, the first limiting part 41 and the second limiting part 211 mutually limit each other.

[0020] The annular portion of the limiting ring 4 is embedded inside the iron core winding 6. Supported by the iron core winding 6, the strength of the limiting ring 4 is enhanced, thereby increasing the strength of the first limiting part 41. When the first limiting part 41 and the second limiting part 211 mutually restrain each other, the reliability of the restraint is enhanced. Since the first limiting part 41 is supported by the bearing 5, its volume can be made larger, further enhancing the reliability of the restraint when it restrains the second limiting part 211.

[0021] In one embodiment of this utility model, a hollow rotating shaft 21 is provided in the middle of the limiting seat 2.

[0022] In one embodiment of this utility model, the center of the accommodating space of the base 1 has a connecting seat 11, the iron core winding 6 is disposed between the inner wall of the base 1 and the connecting seat 11, the connecting seat 11 has a third protrusion 111, the limiting ring 4 has a groove on the side opposite to the first limiting part 41, the third protrusion 111 is matched and connected with the groove, the limiting ring 4 is installed on the inner wall of the iron core winding 6 and matched and connected with the connecting seat 11, so that the limiting ring 4 is installed firmly. Through the joint support of the iron core winding 6 and the connecting seat 11, the strength of the limiting ring 4 is further increased, thereby enhancing the reliability of the limiting when mutually limiting with the second limiting 211.

[0023] In one embodiment of this utility model, the first limiting part 41 of the limiting ring 4 has a stepped structure. The first limiting part 41 protrudes from the surface of the limiting ring 4, and the first limiting part 4 and the surface of the limiting ring 4 form a stepped structure. During assembly, the stepped part of the first limiting part 41 engages and is fixed with the end of the iron core winding 6.

[0024] With the support of the iron core winding 6, the strength of the first limiting part 41 of the limiting ring 4 is enhanced, thereby increasing the reliability of the limiting and preventing the limiting from failing.

[0025] In one embodiment of this utility model, the first limiting part 41 of the limiting ring 4 is provided with a groove, and the second limiting part 211 is a second protrusion, which is matched and connected with the groove; or the first limiting part 41 of the limiting ring 4 is a first protrusion, and the second limiting part 211 is a second protrusion, which abuts and limits the second limiting part 211 against the first protrusion; or the first limiting part 41 is a protrusion, and the second limiting part 211 is provided with a groove, which is matched and connected with the first protrusion.

[0026] A gimbal includes the above-mentioned motor limit device.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A motor limiting device, characterized in that: The device includes a motor rotor and a motor stator, with the motor rotor and motor stator rotatably connected. The motor rotor includes a limiting seat (2), and the motor stator includes a base (1). The base (1) and the limiting seat (2) are rotatably connected. The base (1) has a receiving space, and a hollow iron core winding (6) is provided in the receiving space. A hollow rotating shaft (21) is provided on the limiting seat (2), and the hollow rotating shaft (21) passes through the iron core winding (6). A bearing (5) is provided on the outer circumference of the hollow rotating shaft (21), and the annular part of the limiting ring (4) is embedded with... Inside the iron core winding (6), and the limiting ring (4) is located on the outer periphery of one end of the outer bearing of the bearing (5). The inner bearing of the bearing (5) is sleeved on the outer periphery of the hollow rotating shaft (21). The hollow rotating shaft (21) is provided with a second limiting part (211). When the hollow rotating shaft (21) rotates, the second limiting part (211) rotates with the hollow rotating shaft (21). The limiting ring (4) is provided with a first limiting part (41). Under the action of external force, the first limiting part (41) and the second limiting part (211) limit each other.

2. The motor limiting device as described in claim 1, characterized in that: The first limiting part (41) of the limiting ring (4) has a stepped structure. During assembly, the stepped part of the first limiting part (41) engages and is fixed with the inside of the iron core winding (6).

3. The motor limiting device as described in claim 1, characterized in that: The center of the accommodating space of the base (1) has a connecting seat (11). The iron core winding (6) is arranged between the inner wall of the base (1) and the connecting seat (11). The connecting seat (11) has a third protrusion (111). The limiting ring (4) has a groove (42) on the side opposite to the first limiting part (41). The third protrusion (111) and the groove (42) are matched and connected. The limiting ring (4) is installed on the inner wall of the iron core winding (6) and matched and connected with the connecting seat (11).

4. The motor limiting device as described in claim 1, characterized in that: The first limiting part (41) of the limiting ring (4) is provided with a groove, and the second limiting part (211) is a second protrusion, which is matched and connected with the groove; or the first limiting part (41) of the limiting ring (4) is a first protrusion, and the second limiting part (211) is a second protrusion, which abuts and limits the second limiting part (211) against the first protrusion; or the first limiting part (41) is a first protrusion, and the second limiting part (211) is provided with a groove, which is matched and connected with the first protrusion.

5. A gimbal, characterized in that, Includes the motor limiting device as described in any one of claims 1 to 4.

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