Synchronous double-output-shaft outer rotor motor

Abstract

The utility model discloses a synchronous double-output-shaft external rotor motor, and belongs to the technical field of double-output-shaft external rotor motors. Comprising a motor shell which comprises a first shell and a second shell which are matched with each other and are connected through a bolt; and the anti-loosening mechanism is arranged on the outer side of the second shell and matched with the bolt. When the motor is used, the surfaces of the check blocks abut against one end of the second shell when the two check blocks are moved out of the limiting rod by the pushing blocks, locking of the bolt is achieved, and compared with the situation that the bolt is prone to loosening due to vibration force generated in the operation process of an existing motor, the bolt is locked through the mode, so that the operation is more convenient. The bolt is prevented from loosening in the operation of the motor, and the connection tightness of the first shell and the second shell is ensured; the rotor motor solves the problem that vibration force of a rotor motor is transmitted to a bolt, so that the connection part of a shell is easy to loosen.

Description

Technical Field

[0001] This utility model relates to the field of dual-output-shaft external rotor motor technology, and in particular to a synchronous dual-output-shaft external rotor motor. Background Technology

[0002] The synchronous dual-output-shaft external rotor motor is a special type of motor that combines the operating characteristics of a synchronous motor with the structural design of a dual-output-shaft external rotor. This type of motor typically consists of a stator, an external rotor, and two output shafts. The external rotor, as a rotating component, generates relative motion with the stator through a specific connection method and simultaneously drives the two output shafts to rotate.

[0003] A search revealed a utility model patent with authorization announcement number CN221042462U, which discloses a built-in drive permanent magnet synchronous dual-output shaft external rotor motor. In the motor's housing structure, the motor is separated from a second flange by bolts, thus releasing the first and second flanges from their fixed state. This facilitates the separation of the front and rear housings, reducing the difficulty of motor disassembly and improving maintenance efficiency. However, during operation, the high-speed rotation of the internal rotor causes vibration in the motor housing. This vibration is transmitted to the bolts, potentially leading to loosening at the connection between the bolts and the flanges. This affects the tightness of the connection between the front and rear housings and the safety of the rotor motor during use.

[0004] Based on this, the present invention proposes a synchronous dual-output shaft external rotor motor to solve the problems existing in the prior art. Utility Model Content

[0005] In view of this, the main purpose of this utility model is to provide a synchronous dual-output shaft external rotor motor to solve the problem that the vibration force is transmitted to the bolts in traditional rotor motors, which can easily lead to loosening at the connection of the housing.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A synchronous dual-output-shaft external rotor motor, comprising:

[0008] The motor housing includes a matching first outer shell and a second outer shell, the first outer shell and the second outer shell being connected by bolts, the bolts being distributed in a ring on the outside of the first outer shell and threadedly connected to the second outer shell;

[0009] The anti-loosening mechanism is located on the outside of the second housing and is compatible with the bolts.

[0010] In a preferred embodiment, the anti-loosening mechanism includes:

[0011] A limiting rod is rotatably connected to one end of a bolt, and a through hole is provided inside the limiting rod;

[0012] The stop block is slidably positioned within the through hole;

[0013] A mounting ring is provided on the outside of the second housing, and a push block is provided at the end of the mounting ring near the first housing in a ring-shaped distribution. The push block matches the stop block.

[0014] In a preferred embodiment, the mounting ring is further threaded with a screw, which is threaded to the second housing.

[0015] In a preferred embodiment, the mounting ring is further provided with a plurality of annular magnets, which are matched with screws.

[0016] In a preferred embodiment, a stop bar is provided at one end of the second housing, the stop bar being matched with the mounting ring.

[0017] In a preferred embodiment, the limiting rod has a sliding groove that communicates with the through hole and is slidably connected to the stop block.

[0018] In a preferred embodiment, the stop is further provided with a spring, the other end of which is connected to the inner wall of the groove.

[0019] In a preferred embodiment, the stop is provided with a pull rope, the other end of which passes through a limiting rod and is connected to the circular block.

[0020] In a preferred embodiment, the push block is an isosceles triangular structure, and the limiting rod is a frustum-shaped structure.

[0021] In a preferred embodiment, one end of both the first and second outer shells is provided with annularly distributed recessed holes, and the outer side of the limiting rod has a protrusion, which is slidably connected to the recessed holes.

[0022] Compared with the prior art, this utility model provides a synchronous dual-output-shaft external rotor motor, which has the following beneficial effects:

[0023] 1. By setting up the mounting ring and push block, the two stops are pushed away from each other and moved out of the limit rod. The surface of the stops abuts against one end of the second housing, thereby locking the bolts. Compared with the existing motor, which is prone to bolt loosening due to vibration during operation, this method locks the bolts to prevent them from loosening during motor operation, thus ensuring the tightness of the connection between the first housing and the second housing.

[0024] 2. By using screws and a ring magnet, the mounting ring is securely installed on the second housing, ensuring stable contact between the push block and the stop block. The groove and protrusion provide guidance and positioning for the limiting rod, ensuring the push block can move precisely to the inner wall of the through hole. This solves the problem of vibration from the rotor motor being transmitted to the bolts, which could easily lead to loosening at the housing connection. Attached Figure Description

[0025] 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 these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the synchronous dual-output shaft external rotor motor of this utility model;

[0027] Figure 2 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0028] Figure 3 This is an exploded view of the first and second outer shells of this utility model;

[0029] Figure 4 This utility model Figure 3 A magnified view of a section at point B in the middle;

[0030] Figure 5 This utility model Figure 3 A magnified view of a section at point C;

[0031] Figure 6 This is a diagram showing the installation effect of the pusher block of this utility model.

[0032] [Explanation of Key Component Symbols]

[0033] 1. First outer shell;

[0034] 2. Second outer shell;

[0035] 3. Bolts;

[0036] 4. Anti-loosening mechanism; 41. Limiting rod; 42. Stop block; 43. Mounting ring; 44. Push block; 45. Screw; 46. Ring magnet; 47. Stop bar; 48. Concave hole; 49. Protrusion; 410. Spring; 411. Slide groove; 412. Pull rope; 413. Round block; 414. Through hole. Detailed Implementation

[0037] The structure of this synchronous dual-output shaft external rotor motor will be further described in detail below with reference to the accompanying drawings and embodiments of this utility model.

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0041] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0042] Please see Figures 1-6 This utility model provides a technical solution:

[0043] A synchronous dual-output shaft external rotor motor includes a motor housing and an anti-loosening mechanism 4 disposed on the motor housing; wherein:

[0044] The motor housing is used to protect the internal drive structure and includes a first outer shell 1. A second outer shell 2 is provided at one end of the first outer shell 1, and a ring of bolts 3 are threadedly connected to one end of the first outer shell 1. The surface of the bolts 3 is threaded onto the second outer shell 2 to connect the first outer shell 1 and the second outer shell 2 to form a protective outer shell for the motor.

[0045] The anti-loosening mechanism 4 is disposed on the outer surface of the second housing 2 to prevent the bolt 3 from loosening during use. It includes a limiting rod 41 rotatably connected to one end of the bolt 3. A through hole 414 is provided on the inner wall of the limiting rod 41, and two stops 42 are slidably connected in the through hole 414. The surface of the second housing 2 is provided with a mounting ring 43. One end of the mounting ring 43 is fixedly connected to a ring of push blocks 44. One side of the stop block 42 contacts one side of the push block 44. The surface of the push block 44 is an isosceles triangle, and the surface of the limiting rod 41 is a frustum.

[0046] The first outer casing 1 contains a stator, an optical shaft, and a rotor. One end of the first outer casing 1 is provided with a rubber pad. The stator, optical shaft, and rotor are installed inside the first outer casing 1 and the second outer casing 2.

[0047] It should be noted that, in this embodiment, during routine maintenance of the synchronous dual-output shaft external rotor motor, the positioning bolts on the mounting ring 43 are removed, the mounting ring 43 is released from the second housing 2, and the mounting ring 43 is pulled to move the multiple push blocks 44 away from their respective limiting rods 41. At this time, the push blocks 44 are pushed inward into the limiting rods 41. The bolts 3 are rotated using an electric wrench or other appropriate tools to move the multiple bolts 3 away from the second housing 2, thereby releasing the first housing 1 from the second housing 2. The first housing 1 and the second housing 2 are separated, and the stator, optical shaft and rotor are gently tapped out using a hardwood hammer or rubber hammer. At this time, the stator, optical shaft and rotor inside the motor are inspected.

[0048] In a preferred embodiment, such as Figure 5 As shown, a screw 45 is threadedly connected to the upper surface of the mounting ring 43. The surface of the screw 45 is threadedly connected to the upper surface of the second housing 2. An annular magnet 46 is fixedly connected to the upper surface of the mounting ring 43. The screw 45 is an AlNiCo alloy component. The surface of the annular magnet 46 is magnetically attracted to the surface of the screw 45. Two stop bars 47 are fixedly connected to one end of the second housing 2.

[0049] It should be noted that, in this embodiment, after maintenance, the stator, optical shaft, and rotor are all installed inside the first housing 1 and the second housing 2. An electric wrench is used to install multiple bolts 3 one by one onto the first housing 1 and the second housing 2, so that the first housing 1 and the second housing 2 are installed together. The mounting ring 43 is pushed, causing it to move and contact one end of the stop rod 47, which in turn moves the push block 44 into the through hole 414. Pushing the mounting ring 43 is stopped. An electric wrench is then used to move the screw 45 down the thread inside the mounting ring 43 and install it onto the second housing 2, so that... The ring magnet 46 is attracted to the surface of the screw 45. Because the surface of the push block 44 is an isosceles triangle, one side of the stop block 42 contacts one side of the push block 44. When the push block 44 moves into the through hole 414, the side of the stop block 42 contacts the side of the push block 44. As the push block 44 moves toward the bolt 3, its side pushes the stop block 42 to move. The two stop blocks 42 move away from each other and move out of the limit rod 41. The surfaces of the two moved stop blocks 42 contact one end of the second housing 2, locking the movement direction of the bolt 3.

[0050] In a preferred embodiment, such as Figure 4 As shown, both the first outer shell 1 and the second outer shell 2 have annularly distributed recessed holes 48 at one end. A protrusion 49 is fixedly connected to the upper surface of the limiting rod 41. The surface of the protrusion 49 is slidably connected to the inner wall of the recessed hole 48, which is used to limit the protrusion 49 through the recessed hole 48 during use, so as to prevent the protrusion 49 from rotating under vibration.

[0051] like Figure 4 As shown, a sliding groove 411 is also provided on the inner wall of the limiting rod 41. The sliding groove 411 is connected to the through hole 414. The stop block 42 is slidably connected to the inner wall of the sliding groove 411. A spring 410 is fixedly connected to the upper surface of the stop block 42. The other end of the spring 410 is fixedly connected to the inner wall of the sliding groove 411 for resetting the stop block 42 by the spring 410. A pull rope 412 is fixedly connected to the upper surface of the stop block 42. The other end of the pull rope 412 passes through the limiting rod 41 and is fixedly connected to a round block 413.

[0052] It should be noted that in this embodiment, when the push block 44 is away from the through hole 414, the elastic force of the spring 410 can push the stop block 42 to move, so that the stop block 42 retracts into the limit rod 41. When the stop block 42 is not fully retracted into the limit rod 41, the round block 413 is pulled, so that the pull rope 412 drives the stop block 42 to retract into the limit rod 41, so as to facilitate the removal of the mounting ring 43.

[0053] When the synchronous dual-output-shaft external rotor motor of this utility model is in use:

[0054] Insert the limiting rod 41 into the second housing 2, so that the protrusion 49 moves into the concave hole 48. Use an electric wrench to install multiple bolts 3 one by one onto the first housing 1 and the second housing 2. The bolts 3 rotate and move in the direction that drives the limiting rod 41, and connect with the limiting rod 41, so that the first housing 1 and the second housing 2 are installed together. Push the mounting ring 43. When the mounting ring 43 moves to abut one end of the stop rod 47 and drives the push block 44 to move into the through hole 414, stop pushing the mounting ring 43. Use an electric wrench to move the screw 45 down the thread inside the mounting ring 43 and install it on the second housing 2, so that the ring magnet 46 is attracted to the surface of the screw 45. The push block 44 moves and pushes the two stops 42 away from each other, so that they move out of the limiting rod 41 and contact one end of the second housing 2, locking the movement direction of the bolt 3.

[0055] It should be noted that the first outer shell 1, the second outer shell 2, the bolt 3, the ring magnet 46, the stator, the optical shaft and the rotor mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0056] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A synchronous dual-output-shaft external rotor motor, characterized in that: include: The motor housing includes a matching first housing (1) and a second housing (2), the first housing (1) and the second housing (2) being connected by bolts (3), the bolts (3) being distributed in a ring on the outside of the first housing (1) and threadedly connected to the second housing (2); The anti-loosening mechanism (4) is located on the outside of the second housing (2) and is matched with the bolt (3).

2. The synchronous dual-output-shaft external rotor motor as described in claim 1, characterized in that: The anti-loosening mechanism (4) includes: The limiting rod (41) is rotatably connected to one end of the bolt (3), and a through hole (414) is provided in the limiting rod (41). The stop block (42) is slidably disposed within the through hole (414); The mounting ring (43) is located on the outside of the second housing (2), and a push block (44) is provided at the end of the mounting ring (43) near the first housing (1) in a ring-shaped distribution. The push block (44) matches the stop block (42).

3. A synchronous dual-output-shaft external rotor motor as described in claim 2, characterized in that: The mounting ring (43) is also threaded with a screw (45), which is threaded to the second housing (2).

4. A synchronous dual-output-shaft external rotor motor as described in claim 3, characterized in that: The mounting ring (43) is also provided with a plurality of annular magnets (46), which are matched with screws (45).

5. A synchronous dual-output-shaft external rotor motor as described in claim 2, characterized in that: The second housing (2) is provided with a stop bar (47) at one end, which matches the mounting ring (43).

6. A synchronous dual-output-shaft external rotor motor as described in claim 2, characterized in that: The limiting rod (41) has a sliding groove (411) inside, which is connected to the through hole (414) and slidably connected to the stop block (42).

7. A synchronous dual-output-shaft external rotor motor as described in claim 6, characterized in that: A spring (410) is also provided on the stop block (42), and the other end of the spring (410) is connected to the inner wall of the slide groove (411).

8. A synchronous dual-output-shaft external rotor motor as described in claim 2, characterized in that: A pull rope (412) is provided on the stop block (42), and the other end of the pull rope (412) passes through the limiting rod (41) and is connected to the round block (413).

9. A synchronous dual-output-shaft external rotor motor as described in claim 2, characterized in that: The push block (44) is an isosceles triangular structure, and the limiting rod (41) is a frustum-shaped structure.

10. A synchronous dual-output-shaft external rotor motor as described in claim 2, characterized in that: Both the first outer shell (1) and the second outer shell (2) have annularly distributed recessed holes (48) at one end. The limiting rod (41) has a protrusion (49) on its outer side, and the protrusion (49) is slidably connected to the recessed hole (48).

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