Motor assembly

Abstract

The utility model provides a motor assembly, which comprises a stator frame, a main shaft, an integrated rotor and a winding, and is characterized in that the main shaft is rotatably connected to the stator frame and penetrates through the stator frame; the integrated rotor and the stator frame are arranged at an interval; the integrated rotor is connected to the main shaft and rotates relative to the stator frame along with rotation of the main shaft; an accommodating space is formed between the integrated rotor and the stator frame; the winding is connected to the stator frame and is located in the accommodating space; at the moment, the main shaft is provided with a circular shaft part, and the circular shaft part is connected with the stator frame and the integrated rotor at different positions, so that the stator frame and the integrated rotor are located on the same side relative to the main shaft, the space of the stator frame and the integrated rotor is reduced, and the winding fully utilizes the accommodating space to realize miniaturization of the accommodating space; therefore, the compact design of the stator frame, the winding and the integrated rotor is ensured, the overall size and weight of the motor assembly are reduced, and the compact design of the motor assembly is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of motor assembly, especially to a motor assembly. BACKGROUND

[0002] With the development of science and technology, robots are applied in industry, and motor assemblies are used to drive the joints of robots to move, and the motor assembly is part of the robot.

[0003] In the prior art, the existing motor assembly comprises a stator frame, a main shaft and a rotor, the stator frame, the main shaft and the rotor are arranged in sequence from left to right, the stator and the rotor are distributed at different positions of the main shaft, the main shaft cannot pass through the stator frame, the rotor is connected to one side of the main shaft away from the stator frame, and the space between the rotor and the stator is large, so that the existing motor assembly has a large size. UTILITY MODEL CONTENTS

[0004] The utility model discloses a motor assembly, the main shaft is rotatably connected to the stator frame, and passes through the stator frame, the integral type rotor is arranged at one side of the stator frame, and the integral type rotor is arranged at intervals with the stator frame, the integral type rotor is connected to the main shaft, and the integral type rotor rotates relative to the stator frame along with the rotation of the main shaft, the accommodation space is formed between the integral type rotor and the stator frame, the winding is connected to the stator frame and is in the accommodation space, at this time, the main shaft is equipped with the round shaft part, and the round shaft part is connected to the stator frame and the integral type rotor at different positions, so that the stator frame and the integral type rotor are at the same side relative to the main shaft, the space of the stator frame and the integral type rotor is reduced, the winding fully utilizes the accommodation space, the miniaturization of the accommodation space is realized, the compact design of the stator frame, the winding and the integral type rotor is guaranteed, the overall size and weight of the motor assembly are reduced, and the compact design of the motor assembly is realized.

[0005] To achieve the above object, the utility model provides the following technical scheme: a motor assembly, comprising:

[0006] The stator frame is arranged at intervals with the stator frame, and the integral type rotor is connected to the main shaft, and the integral type rotor rotates relative to the stator frame along with the rotation of the main shaft, the accommodation space is formed between the integral type rotor and the stator frame,

[0007] The main shaft is rotatably connected to the stator frame and passes through the stator frame,

[0008] The integral type rotor is arranged at one side of the stator frame, and the integral type rotor is arranged at intervals with the stator frame, the integral type rotor is connected to the main shaft, and the integral type rotor rotates relative to the stator frame along with the rotation of the main shaft, the accommodation space is formed between the integral type rotor and the stator frame,

[0009] The winding is connected to the stator frame and is in the accommodation space,

[0010] At this time, the main shaft is equipped with the round shaft part, and the round shaft part is connected to the stator frame and the integral type rotor at different positions.

[0011] Optionally, the stator frame and the round shaft part are provided with a first bearing and a second bearing; the first bearing and the second bearing are distributed at different positions of the round shaft part.

[0012] Optionally, the radial width of the first bearing and the radial width of the second bearing are inconsistent.

[0013] Optionally, the second bearing is close to the integrated rotor; the radial width of the second bearing is smaller than the radial width of the first bearing.

[0014] Optionally, the stator frame is provided with a stator part, the stator part is arranged opposite to the integrated rotor, and the winding is connected to the stator part and is between the stator part and the integrated rotor.

[0015] Optionally, the stator part is connected with a boss, the boss supports the winding; and the boss is connected to the main shaft through the second bearing.

[0016] Optionally, the stator frame is connected to the main shaft through the first bearing.

[0017] Optionally, the stator frame is provided with a support part, the support part is provided with a connecting hole, and the connecting hole is used for connecting an external connecting piece.

[0018] Optionally, the stator frame is arranged in a disc shape.

[0019] Compared with the prior art, the motor assembly has the following beneficial effects:

[0020] The utility model provides a kind of motor assembly, main shaft is rotatably connected to stator frame, and is arranged in stator frame;Integrated rotor is arranged at one side of stator frame, and integrated rotor is arranged with interval to stator frame;Integrated rotor is connected to main shaft, and integrated rotor rotates relative to stator frame with the rotation of main shaft;Accommodation space is formed between integrated rotor and stator frame;Winding is connected to stator frame, and is in accommodation space;At this time, main shaft is provided with round shaft part, and round shaft part is connected to stator frame and integrated rotor at different positions, so that stator frame and integrated rotor are at the same side relative to main shaft, reduce the space of stator frame and integrated rotor, and winding makes full use of accommodation space, to realize the miniaturization of the accommodation space, so as to ensure the compact design of stator frame, winding, integrated rotor, reduce the overall volume and weight of motor assembly, realize the compact design of motor assembly. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description only show some embodiments of the present application, and all other drawings obtained by those skilled in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0022] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings. In the following description, the same reference numbers represent the same parts.

[0023] Figure 1 A schematic diagram of a motor assembly according to the present application utility model is shown.

[0024] Figure 2 Another state schematic diagram of a motor assembly according to the present application utility model is shown.

[0025] Figure 3 A front view of a motor assembly according to the present application utility model is shown.

[0026] Figure 4 A sectional view of a motor assembly according to the present application utility model is shown.

[0027] Figure 5 An exploded view of a motor assembly according to the present application utility model is shown.

[0028] Reference signs

[0029] 100, motor assembly;

[0030] 10, stator frame; 11, stator part; 111, boss; 12, support part; 12a, connecting hole;

[0031] 20, main shaft; 21, round shaft part;

[0032] 30, integrated rotor; 30a, accommodating space;

[0033] 40, winding;

[0034] 50, first bearing;

[0035] 60, second bearing. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort also belong to the protection scope of the present application.

[0037] Please refer to the attached drawings Figures 1-5 The utility model provides a motor assembly 100, motor assembly 100 is applied to robot, motor assembly 100 is used to drive the joint of robot to carry out activity.

[0038] Please refer to the attached drawings Figures 1-5 In the application implementation, the motor assembly 100 includes the stator frame 10, the main shaft 20, the integrated rotor 30 and the winding 40, the main shaft 20 is rotatably connected to the stator frame 10 and is arranged through the stator frame 10;The integrated rotor 30 is arranged at one side of the stator frame 10, and the integrated rotor 30 is arranged at intervals with the stator frame 10;The integrated rotor 30 is connected to the main shaft 20, and the integrated rotor 30 rotates relative to the stator frame 10 along with the rotation of the main shaft 20;The integrated rotor 30 and the stator frame 10 form a containing space 30a;The winding 40 is connected to the stator frame 10 and is in the containing space 30a;At this time, the main shaft 20 is provided with the round shaft part 21, and the round shaft part 21 is connected to the stator frame 10 and the integrated rotor 30 at different positions, so that the stator frame 10 and the integrated rotor 30 are at the same side relative to the main shaft 20, the space of the stator frame 10 and the integrated rotor 30 is reduced, and the winding 40 fully utilizes the containing space 30a, so as to realize the miniaturization of the containing space 30a, thereby ensuring the compact design of the stator frame 10, the winding 40 and the integrated rotor 30, reducing the overall volume and weight of the motor assembly 100, and realizing the compact design of the motor assembly 100.

[0039] Please refer to the attached drawings Figures 1-5 In the application implementation, the stator frame 10 is used as the supporting component of the motor assembly 100, and the stator frame 10 is used to support the main shaft 20, the integrated rotor 30 and the winding 40.

[0040] Please refer to the attached drawings Figures 1-5 In the application implementation, the main shaft 20 is rotatably connected to the stator frame 10 and is arranged through the stator frame 10, so as to facilitate the rotation of the main shaft 20 along the axial direction of the stator frame 10, thereby facilitating the adjustment of the position of the main shaft 20 relative to the stator frame 10, and at the same time, the main shaft 20 is connected to the stator frame 10 in a penetrating manner, so as to reduce the space between the main shaft 20 and the stator frame 10.

[0041] Please refer to the attached drawings Figures 1-5 In the application implementation, the integrated rotor 30 is arranged outside the stator frame 10, and the integrated rotor 30 is arranged at intervals with the stator frame 10, so as to facilitate the separate arrangement of the integrated rotor 30 and the stator frame 10;The integrated rotor 30 is connected to the main shaft 20, so as to facilitate the fixation of the integrated rotor 30 to the main shaft 20, and the integrated rotor 30 rotates relative to the stator frame 10 along with the rotation of the main shaft 20, so as to facilitate the adjustment of the position of the integrated rotor 30 relative to the stator frame 10;The integrated rotor 30 and the stator frame 10 form a containing space 30a.

[0042] Please refer to the attached drawings Figures 1-5 In the present application, the winding 40 is arranged on the inner side of the stator frame 10, and is connected to the stator frame 10 and located in the accommodation space 30a, so as to make full use of the accommodation space 30a by the winding 40, thereby reducing the space between the integrated rotor 30, the stator frame 10 and the winding 40.

[0043] Please refer to the attached drawings Figures 1-5 At this time, the main shaft 20 is provided with a round shaft part 21, which is connected to the stator frame 10 and the integrated rotor 30 at different positions, so that the stator frame 10 and the integrated rotor 30 are located on the same side relative to the main shaft 20, the space between the stator frame 10 and the integrated rotor 30 is reduced, the winding 40 makes full use of the accommodation space 30a, so as to realize the miniaturization of the accommodation space 30a, thereby ensuring the compact design of the stator frame 10, the winding 40 and the integrated rotor 30, reducing the overall volume and weight of the motor assembly 100, and realizing the compact design of the motor assembly 100.

[0044] Please refer to the attached drawings Figures 1-5 The first bearing 50 and the second bearing 60 are arranged between the stator frame 10 and the round shaft part 21, and the first bearing 50 and the second bearing 60 are distributed at different positions of the round shaft part 21, so as to arrange the first bearing 50 and the second bearing 60 separately, thereby making full use of the internal space of the stator frame 10 by the first bearing 50 and the second bearing 60, so as to realize the rotation of the round shaft part 21 relative to the stator frame 10 through the first bearing 50 and the second bearing 60, and improve the rotation smoothness of the round shaft part 21 relative to the stator frame 10.

[0045] Please refer to the attached drawings Figures 1-5 The radial width of the first bearing 50 and the radial width of the second bearing 60 are inconsistent with each other, when the radial width is smaller, the shaft diameter and the contact surface are smaller, and thus the friction force between them is smaller, when the radial width is larger, the shaft diameter and the contact surface are larger, and thus the friction force between them is larger, when the radial width is smaller, the carrying capacity is smaller, and when the radial width is larger, the carrying capacity is larger.

[0046] Please refer to the attached drawings Figures 1-5 The second bearing 60 is close to the integrated rotor 30, so that the circumferential side of the second bearing 60 abuts against the integrated rotor 30, thereby ensuring the rotation smoothness of the integrated rotor 30, the radial width of the second bearing 60 is smaller than that of the first bearing 50, the smaller the radial width of the second bearing 60, the smaller the shaft diameter of the second bearing 60 and the contact surface of the round shaft part 21, and thus the smaller the friction force between them, thereby improving the operation stability of the integrated rotor 30, and the larger the radial width of the first bearing 50, the larger the carrying capacity of the first bearing 50.

[0047] Please refer to the attached drawings Figures 1-5The stator frame 10 is provided with a stator part 11, the stator part 11 is arranged opposite to the integrated rotor 30, the winding 40 is connected to the stator part 11, so that the winding 40 is fixed to the stator part 11, thereby facilitating the winding 40 to be connected to the stator frame 10 through the stator part 11, the winding 40 is on the same side as the integrated rotor 30, and the winding 40 is between the stator part 11 and the integrated rotor 30, so that the winding 40 generates a rotating magnetic field and acts on the rotor to form a magnetic electric power rotating torque.

[0048] Please refer to the accompanying drawings Figures 1-5 The stator part 11 is connected with a boss 111, the boss 111 is protruded along the length direction of the stator part 11, the boss 111 supports the winding 40, so that the winding 40 is fixed to the outside of the boss 111; the boss 111 is connected with the main shaft 20 through the second bearing 60, so that the main shaft 20 is rotated relative to the boss 111 through the second bearing 60, and the rotation smoothness of the main shaft 20 relative to the boss 111 is improved. The inner wall of the boss 111 and the outer wall of the main shaft 20 are clamped with the second bearing 60, the fixed end of the second bearing 60 abuts against the inner wall of the boss 111, and the rotating end of the second bearing 60 is connected to the main shaft 20, so that the main shaft 20 is rotated under the action of the second bearing 60.

[0049] Please refer to the accompanying drawings Figures 1-5 The stator frame 10 is connected to the main shaft 20 through the first bearing 50, so that the main shaft 20 is further rotated relative to the stator frame 10 through the first bearing 50, and the rotation smoothness of the main shaft 20 relative to the stator frame 10 is further improved. The inner wall of the stator frame 10 and the outer wall of the main shaft 20 are clamped with the first bearing 50, the fixed end of the first bearing 50 abuts against the inner wall of the stator frame 10, and the rotating end of the first bearing 50 is connected to the main shaft 20, so that the main shaft 20 is rotated under the action of the first bearing 50. The first bearing 50 and the second bearing 60 cooperate to ensure the rotation stability of the main shaft 20 relative to the stator frame 10.

[0050] Please refer to the accompanying drawings Figures 1-5 Figures 1-5 Figures 1-5 The stator frame 10 is provided with a support part 12, the support part 12 is provided with a connecting hole 12a, the connecting hole 12a is used for connecting an external to-be-connected part, so that the external to-be-connected part is connected to the support part 12 through the connecting hole 12a, and the position accuracy of the external to-be-connected part relative to the stator frame 10 is ensured. Optionally, the stator frame 10 is arranged in a disc shape.

[0051] In another embodiment, a robot includes a motor assembly 100, the motor assembly 100 is part of the robot, and the robot is used to automatically perform work.

[0052] At this time, the motor assembly 100 comprises a stator frame 10, a main shaft 20, an integrated rotor 30 and a winding 40, the main shaft 20 is rotatably connected to the stator frame 10 and penetrates the stator frame 10, the integrated rotor 30 is arranged on one side of the stator frame 10, the integrated rotor 30 is arranged in a spaced manner with the stator frame 10, the integrated rotor 30 is connected to the main shaft 20, and the integrated rotor 30 rotates relative to the stator frame 10 along with the rotation of the main shaft 20, a containing space 30a is formed between the integrated rotor 30 and the stator frame 10, and the winding 40 is connected to the stator frame 10 and located in the containing space 30a, at this time, the main shaft 20 is provided with a round shaft part 21, the round shaft part 21 is connected to the stator frame 10 and the integrated rotor 30 at different positions, so that the stator frame 10 and the integrated rotor 30 are located on the same side relative to the main shaft 20, the space of the stator frame 10 and the integrated rotor 30 is reduced, and the winding 40 fully utilizes the containing space 30a, so that the containing space 30a is miniaturized, thereby guaranteeing the compact design of the stator frame 10, the winding 40 and the integrated rotor 30, reducing the overall volume and weight of the motor assembly 100, and realizing the compact design of the motor assembly 100.

[0053] Compared with the prior art, the motor assembly 100 has the advantages that:

[0054] The utility model provides a kind of motor assembly 100, main shaft 20 rotatably connect to stator frame 10, and penetrate stator frame 10;Integrated rotor 30 is arranged on one side of stator frame 10, integrated rotor 30 is arranged in a spaced manner with stator frame 10;Integrated rotor 30 is connected to main shaft 20, and integrated rotor 30 rotates relative to stator frame 10 along with the rotation of main shaft 20;Integrated rotor 30 and stator frame 10 form containing space 30a;Winding 40 is connected to stator frame 10, and located in containing space 30a;At this time, main shaft 20 is provided with round shaft part 21, and round shaft part 21 is connected to stator frame 10 and integrated rotor 30 at different positions, so that stator frame 10 and integrated rotor 30 are located on the same side relative to main shaft 20, the space of stator frame 10 and integrated rotor 30 is reduced, and winding 40 fully utilizes containing space 30a, so that the containing space 30a is miniaturized, thereby guaranteeing the compact design of the stator frame 10, the winding 40 and the integrated rotor 30, reducing the overall volume and weight of the motor assembly 100, and realizing the compact design of the motor assembly 100.

[0055] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0056] In the description of the present application, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features.

[0057] The principles and implementation modes of the present application are described herein by applying specific examples, and the above example descriptions are only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation modes and application ranges will have changes, and in summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An electric machine assembly, characterized by The utility model relates to a kind of motor, including: Stator frame; Main shaft, rotatably connected to the stator frame, and through the stator frame; Integrated rotor, arranged on one side of the stator frame, the integrated rotor is arranged with the stator frame at intervals;The integrated rotor is connected to the main shaft, and the integrated rotor rotates relative to stator frame with the rotation of the main shaft;The integrated rotor and the stator frame form accommodating space between them; Winding, connected to the stator frame, and in the accommodating space; At this time, the main shaft is equipped with round shaft part, and the round shaft part is connected to the stator frame and the integrated rotor at different positions.

2. The electric machine assembly of claim 1, wherein, First bearing and second bearing are equipped between the stator frame and the round shaft part;The first bearing and the second bearing are distributed at different positions of the round shaft part.

3. The electric machine assembly of claim 2, wherein, The radial width of the first bearing and the radial width of the second bearing are inconsistent.

4. The electric machine assembly of claim 3, wherein, The second bearing is close to the integrated rotor;The radial width of the second bearing is less than the radial width of the first bearing.

5. The electric machine assembly of claim 2, wherein, The stator frame is equipped with stator part, and the stator part is arranged opposite to the integrated rotor, and the winding is connected to the stator part and between the stator part and the integrated rotor.

6. The electric machine assembly of claim 5, wherein, The stator part is connected with boss, and the boss supports the winding;The boss is connected to the main shaft through the second bearing.

7. The electric machine assembly of claim 6, wherein, The stator frame is connected to the main shaft through the first bearing.

8. The electric machine assembly of claim 7, wherein, The stator frame is equipped with support part, and the support part is equipped with connecting hole, and the connecting hole is used to connect external to-be-connected member.

9. The electric machine assembly of claim 8, wherein, The stator frame is arranged in disc shape.

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