Gear motor structure

Abstract

The invention discloses a gear motor structure, and belongs to the technical field of motor equipment. A plurality of driving motors arranged in the axial direction of a planetary reducer are arranged in a gear motor structure, the driving motors are annularly distributed in the axial direction of the gear motor structure, each driving motor is in transmission connection with a multiplexing wheel through a corresponding planetary wheel component, and an output disc is driven to rotate in the process of driving the multiplexing wheel to rotate; therefore, power output is achieved. Thus, the multiple driving motors are integrated in the gear motor structure to guarantee sufficient power output, the multiple driving motors occupy the axial space of the gear motor structure to a small extent, the flattening design of the gear motor is facilitated, and then flexible use of equipment integrated with the gear motor structure is guaranteed.

Description

Technical Field

[0001] This application relates to the field of motor equipment technology, and in particular to a geared motor structure. Background Technology

[0002] Currently, in applications such as conveyor belts, turntables, and robots, the drive unit often needs to be flattened due to limited installation space or the need for kinematic optimization to lower the center of gravity and reduce vibration. However, this flattening design often results in insufficient power output from the drive unit. Summary of the Invention

[0003] This application provides a geared motor structure. It solves the problem of insufficient power output caused by the flattened design of the drive device in the prior art. The technical solution is as follows: On the one hand, a geared motor structure is provided, which includes: multiple drive motors, a planetary reducer, and an output disk; The plurality of drive motors are connected to the planetary reducer along the axial direction of the reducer structure, and the plurality of drive motors are arranged in a ring around the axial direction of the reducer structure. The planetary reducer includes: multiple planetary gear components, a reusable gear, and a sun gear component. The multiple planetary gear components correspond one-to-one with and are synchronously connected to the motor shafts of multiple drive motors. The reusable gear is arranged around the multiple planetary gear components and is drivenly connected to all of the multiple planetary gear components. The sun gear component is distributed within the area enclosed by the multiple planetary gear components and is drivenly connected to all of the multiple planetary gear components. The output disk and the multiplexing wheel are arranged opposite each other along the axial direction of the geared motor structure, and the edge portion of the output disk and the multiplexing wheel are fastened together. The output disk is used to connect the load.

[0004] Optionally, the planetary reducer includes: a reducer rear flange distributed on the side of the multiple planetary gear components facing away from the output disc, the reducer rear flange having connection holes corresponding one-to-one with the motor shafts of the multiple drive motors; The plurality of drive motors are fastened to the back of the reducer's rear flange, and the motor shaft of each drive motor passes through the corresponding connection hole and is synchronously connected to the planetary gear assembly.

[0005] Optionally, the planetary gear component includes: an input flange and a planetary gear that are fastened together; the input flange is fastened to the end of the motor shaft of the drive motor; the planetary gear is connected to the reusable gear drive; and the planetary gear is supported by a first bearing on a portion of the rear flange of the reducer that has a connection hole.

[0006] Optionally, the sun gear component includes: a sun gear and an extension shaft connected axially along the geared motor structure, wherein the sun gear is drivenly connected to multiple planetary gear components; the extension shaft is distributed at one end of the sun gear and located in the area enclosed by the motor housings of multiple drive motors; the geared motor structure further includes: a coaxial fan sleeved on the extension shaft.

[0007] Optionally, the two ends of the sun gear are rotatably supported by the output disc and the rear flange of the reducer via a second bearing and a third bearing, respectively.

[0008] Optionally, the outer side of the motor housing of the drive motor has a plurality of arrayed heat dissipation fins, the width of each heat dissipation fin gradually increasing along the radial direction of the drive motor and away from the coaxial fan.

[0009] Optionally, the geared motor structure further includes: a fan housing covering the plurality of drive motors and the coaxial fan, wherein the area at the bottom of the fan housing corresponding to the coaxial fan has an air inlet.

[0010] Optionally, the planetary reducer further includes: a reducer housing disposed opposite to and fastened to the rear flange of the reducer, wherein the outer circumferential surface of the reducer housing has a plurality of fins arranged in an array, each fin extending along the axial direction of the reducer motor structure; The circumferential side of the fan housing covers the outer circumferential surface of the reducer housing and contacts the plurality of fins. An air duct connecting to the external environment is formed between each pair of adjacent fins and the inner circumferential sidewall of the fan housing.

[0011] Optionally, the outer circumferential side of the reducer housing also has multiple fixed support platforms, and the circumferential side of the fan cover is fastened to the multiple fixed support platforms.

[0012] Optionally, the reusable wheel is geared to multiple planetary gear components; the sun gear component is geared to multiple planetary gear components.

[0013] The beneficial effects of the technical solutions provided in this application include at least the following: (1) By setting multiple drive motors axially arranged with the planetary reducer in the geared motor structure, and the multiple drive motors are distributed in a ring along the axial direction of the geared motor structure, each drive motor is connected to the reuse wheel through a corresponding planetary gear component. During the rotation of the reuse wheel, the output disc is driven to rotate, so as to realize the output of power. In this way, the integration of multiple drive motors in the geared motor structure ensures sufficient power output, and the multiple drive motors occupy less axial space in the geared motor structure, which is conducive to the flattened design of the geared motor, thereby ensuring the flexible use of the equipment with the integrated geared motor structure.

[0014] (2) A connection hole is opened on the rear flange of the reducer. The motor shaft of the drive motor passes through the connection hole and is connected to the planetary gear component for transmission. This makes the installation of the drive motor and the planetary reducer in the axial direction of the reducer structure more compact, which is more conducive to the flat design of the reducer structure.

[0015] (3) Each planetary gear component is configured as an input flange and a planetary gear that are interconnected, which facilitates the manufacturing of the planetary gear components and the disassembly and assembly of the input flange and the planetary gear.

[0016] (4) The extension shaft in the sun gear assembly is located in the area enclosed by the motor housings of multiple drive motors. The coaxial fan is sleeved on the extension shaft, which is also located in the area enclosed by the motor housings of multiple drive motors. Therefore, the coaxial fan used for air cooling does not occupy too much axial space of the geared motor structure, which is conducive to the flattening design of the geared motor structure and improves the heat dissipation effect of the coaxial fan on multiple drive motors.

[0017] (5) The air volume decreases outwards. Therefore, the width of each heat dissipation fin is gradually increased along the radial direction of the drive motor and away from the coaxial fan, which can effectively ensure a good overall heat dissipation effect on the drive motor.

[0018] (6) The cooling airflow generated by the coaxial fan passes through the motor housing of the drive motor and enters the air duct formed by the fins of the reducer housing and the inner wall of the fan housing to cool the planetary reducer. Finally, it is discharged through the air duct between the reducer housing and the fan housing.

[0019] (7) The setting of multiple fixed support platforms facilitates the connection between the fan cover and the reducer housing, and also plays a certain guiding and positioning role in the assembly of the fan cover and the reducer housing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional view of a geared motor structure provided in an embodiment of this application; Figure 2 yes Figure 1 A magnified view of a portion at point A; Figure 3 This is a cross-sectional view of another geared motor structure provided in an embodiment of this application; Figure 4 This is an isometric sectional view provided in an embodiment of this application; Figure 5 This is a cross-sectional view of another geared motor structure provided in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of a motor housing for a drive motor provided in an embodiment of this application.

[0022] The components include multiple drive motors 100, planetary reducers 200, output discs 300, multiple planetary gear components 201, a reusable gear 202, a sun gear component 203, a motor shaft 101, a reducer rear flange 204, a connecting hole K, a connecting flange 102, an input flange 201a, planetary gears 201b, a first bearing C1, a sun gear 203a, an extension shaft 203b, a motor housing 103, a coaxial fan 400, a second bearing C2, a third bearing C3, heat dissipation fins 103a, a fan cover 500, an air inlet K1, a reducer housing 205, fins 205a, an air duct D, and a fixed support platform 205b.

[0023] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is a cross-sectional view of a geared motor structure provided in an embodiment of this application. Figure 2 yes Figure 1 A magnified view of a portion at point A. Figure 3 This is a cross-sectional view of another geared motor structure provided in an embodiment of this application. Figure 4 This is an isometric sectional view provided in an embodiment of this application. The geared motor structure may include: multiple drive motors 100, a planetary reducer 200, and an output disk 300.

[0027] Multiple drive motors 100 in the geared motor structure can be connected to the planetary reducer 200 along the axial direction of the geared motor structure, and the multiple drive motors 100 are arranged in a ring around the axial direction of the geared motor structure. For example, the number of multiple drive motors 100 can be two, three, or four, etc., and four drive motors are shown in the figure.

[0028] The planetary reducer 200 in the geared motor structure may include: multiple planetary gear components 201, a reusable gear 202, and a sun gear component 203. The multiple planetary gear components 201 may correspond one-to-one with and be synchronously connected to the motor shafts 101 of multiple drive motors 100. The reusable gear 202 may be arranged around the multiple planetary gear components 201 and be driveably connected to all of them. The sun gear component 203 may be distributed in the area enclosed by the multiple planetary gear components 201 and be driveably connected to all of them. Here, the reusable gear 203 and the multiple planetary gear components 201 are geared together, and the sun gear component 203 and the multiple planetary gear components 201 are also geared together.

[0029] In the geared motor structure, the output disc 300 and the multiplexing wheel 202 are arranged opposite each other along the axial direction of the geared motor structure, and the output disc 300 can be fastened to the edge portion of the multiplexing wheel 202. The output disc 300 can be used to connect a load. For example, the output disc 300 and the edge portion of the multiplexing wheel 202 can be fastened together by screw A1, which facilitates the assembly and disassembly of the geared motor.

[0030] In this embodiment, multiple drive motors 100 are arranged axially with the planetary reducer 200 within the geared motor structure. These drive motors 100 are distributed in a ring along the axial direction of the geared motor structure. Each drive motor 100 is connected to a reuse wheel 202 via a corresponding planetary gear component 201. As the reuse wheel 202 rotates, it drives the output disk 300 to rotate, thus achieving power output. In this way, integrating multiple drive motors 100 into the geared motor structure ensures sufficient power output, and the multiple drive motors 100 occupy a relatively small amount of axial space in the geared motor structure, which is beneficial for the flattened design of the geared motor structure and thus ensures the flexible use of the equipment integrating the geared motor structure.

[0031] In summary, this application provides a geared motor structure that may include multiple drive motors, a planetary reducer, and an output disc. By incorporating multiple drive motors axially arranged with the planetary reducer within the geared motor structure, and these drive motors being circularly distributed along the axial direction of the geared motor structure, each drive motor is connected to a reuse wheel via a corresponding planetary gear component. The rotation of the reuse wheel drives the output disc to rotate, thereby achieving power output. In this way, the integration of multiple drive motors within the geared motor structure ensures sufficient power output, and the multiple drive motors occupy a relatively small amount of axial space within the geared motor structure, which is beneficial for the flattened design of the geared motor, thus ensuring the flexible use of equipment integrating the geared motor structure.

[0032] Optional, such as Figure 3 and Figure 4 As shown, the planetary reducer 200 may include a rear flange 204 of the reducer, distributed on the side of multiple planetary gear components 201 facing away from the output disk 300. The rear flange 204 has connection holes K corresponding one-to-one with the motor shafts 101 of multiple drive motors 100. The multiple drive motors 100 are fastened to the back of the rear flange 204, and the motor shaft 101 of each drive motor 100 passes through the corresponding connection hole K and is synchronously connected to the planetary gear components 201. Thus, the drive motors 100 and planetary gear components 201 are located on the front and rear sides of the rear flange 204, respectively. By opening the connection holes K on the rear flange 204, the motor shafts 101 of the drive motors 100 pass through these connection holes K and are connected to the planetary gear components 201 for transmission. This makes the axial installation of the drive motors 100 and the planetary reducer 200 in the reducer structure more compact, further facilitating the flattening design of the reducer structure. For example, the drive motor 100 has a connecting flange 102, which can be fastened to the rear flange 204 of the reducer by screws. This facilitates the assembly and disassembly of the drive motor 100 and the planetary reducer 200.

[0033] In the embodiments of this application, such as Figure 1 and Figure 3As shown, each planetary gear component 201 may include an input flange 201a and a planetary gear 201b that are fastened together. The input flange 201a can be fastened to the end of the motor shaft 101 of the drive motor 100, and the planetary gear 201b can be drivenly connected to the reusable gear 202. The planetary gear 201b is supported by a first bearing C1 on a portion of the rear flange 204 of the reducer with a connection hole K. Thus, each planetary gear component 201 is configured with an input flange 201a and a planetary gear 201b that are fastened together, which facilitates both the manufacturing of the planetary gear components 201 and the assembly / disassembly of the input flange 201a and the planetary gear 201b. Here, multiple planetary gears 201b are arranged around the sun gear component 203, and the sun gear component 203 is drivenly connected to each planetary gear 201b. The input flange 201a and the planetary gear 201b can be connected by screws A2, facilitating the assembly / disassembly of the input flange 201a and the planetary gear 201b. It should be noted that in the case of gear transmission between planetary gear 201b and sun gear component 203, the diameter and number of teeth of multiple planetary gears can be the same.

[0034] For example, the input flange 201a and the end of the motor shaft 101 of the drive motor 100 can be fastened together by key connection and / or interference fit to achieve synchronous rotation connection between the two.

[0035] In this application, as Figure 3 and Figure 4 As shown, the sun gear component 203 may include a sun gear 203a and an extension shaft 203b connected axially along the geared motor structure. The sun gear 203a is drivenly connected to multiple planetary gear components 201. The extension shaft 203b may be distributed at one end of the sun gear 203a and located in the area enclosed by the motor housing 103 of the drive motor 100. The geared motor structure may also include a coaxial fan 400 sleeved on the extension shaft 203b. In this case, since the extension shaft 203b in the sun gear component 203 is distributed in the area enclosed by the motor housing 103 of the multiple drive motors 100, and the coaxial fan 400 is sleeved on the extension shaft 203b, which is also located in the area enclosed by the motor housing 103 of the multiple drive motors 100, the coaxial fan 400 used for air cooling does not occupy too much axial space of the geared motor structure, which is conducive to the flattening design of the geared motor structure and improves the heat dissipation effect of the coaxial fan on multiple drive motors.

[0036] For example, such as Figure 3As shown, the two ends of the sun gear 203a can be rotatably supported by the output disk 300 and the reducer rear flange 204 via the second bearing C2 and the third bearing C3, respectively. In this way, there is no need to set up other support structures in the geared motor structure. The sun gear 203a utilizes the axial and radial limiting support of the output disk 300 and the reducer rear flange 204, and the bearings ensure relative rotation between them.

[0037] Optional, please refer to Figure 5 and Figure 6 , Figure 5 This is a cross-sectional view of another geared motor structure provided in the embodiments of this application. Figure 6 This is a schematic diagram of the structure of a motor housing for a drive motor according to an embodiment of this application. The outer surface of the motor housing 103 of the drive motor 100 may have multiple arrayed heat dissipation fins 103a, the width of each heat dissipation fin 103a gradually increasing along the radial direction of the drive motor 100 and away from the coaxial fan 400. Thus, since the airflow decreases outwards, setting the width of each heat dissipation fin 103a to gradually increase along the radial direction of the drive motor 100 and away from the coaxial fan 400 effectively ensures good overall heat dissipation for the drive motor 100. Here, the multiple heat dissipation fins 103a are arranged to form multiple annular heat dissipation channels distributed along the axial direction of the drive motor 100.

[0038] In the embodiments of this application, such as Figure 1 , Figure 4 and Figure 5 As shown, the geared motor structure may further include a fan housing 500 covering the multiple drive motors 100 and the coaxial fan 400. The area at the bottom of the fan housing 500 corresponding to the coaxial fan 400 may have an air inlet K1. In this way, when the coaxial fan 400 rotates, fresh air from outside can be introduced through the air inlet K1 at the rear of the fan housing 500.

[0039] Optional, such as Figure 4 and Figure 5As shown, the planetary reducer 200 also includes a reducer housing 205, which is disposed opposite to and securely connected to the reducer rear flange 204. The outer circumferential surface of the reducer housing 205 may have multiple fins 205a arranged in an array, each fin 205a extending axially along the geared motor structure. The circumferential side of the fan shroud 500 covers the outer circumferential surface of the reducer housing 205 and contacts the multiple fins 205a. An air duct D connecting to the external environment is formed between every two adjacent fins 205a and the inner circumferential sidewall of the fan shroud 500. In this way, the cooling airflow generated by the coaxial fan 400 passes through the motor housing 103 of the drive motor 100 and enters the air duct D formed by the fins 205a of the reducer housing 205 and the inner sidewall of the fan shroud 500, cooling the planetary reducer 200, and finally discharged through the air duct D between the reducer housing 205 and the fan shroud 500. Thus, the coaxial fan 400 can cool both the drive motor 100 and the planetary reducer 200 in the geared motor structure, reducing the number of cooling mechanisms in the geared motor structure and ensuring a flat design. For example, the reducer housing 205 can be securely connected to the reducer rear flange 204 using screws A3. The output disc 300 and the reducer housing 205 can be supported relative to each other via bearing C4.

[0040] In this application, as Figure 4 and Figure 5 As shown, the outer circumferential surface of the reducer housing 205 also has multiple fixed support platforms 205b, and the circumferential side of the fan housing 500 is fastened to the multiple fixed support platforms 205b. In this way, the multiple fixed support platforms 205b facilitate the connection between the fan housing 500 and the reducer housing 205, and also play a certain guiding and positioning role in the assembly of the fan housing 500 and the reducer housing 205. For example, the circumferential side of the fan housing 500 can be fastened to the fixed support platforms 205b by means of screws.

[0041] In summary, this application provides a geared motor structure that may include multiple drive motors, a planetary reducer, and an output disc. By incorporating multiple drive motors axially arranged with the planetary reducer within the geared motor structure, and these drive motors being circularly distributed along the axial direction of the geared motor structure, each drive motor is connected to a reuse wheel via a corresponding planetary gear component. The rotation of the reuse wheel drives the output disc to rotate, thereby achieving power output. In this way, the integration of multiple drive motors within the geared motor structure ensures sufficient power output, and the multiple drive motors occupy a relatively small amount of axial space within the geared motor structure, which is beneficial for the flattened design of the geared motor, thus ensuring the flexible use of equipment integrating the geared motor structure.

[0042] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0043] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A geared motor structure, characterized in that, include: Multiple drive motors, planetary reducers, and output discs; The plurality of drive motors are connected to the planetary reducer along the axial direction of the reducer structure, and the plurality of drive motors are arranged in a ring around the axial direction of the reducer structure. The planetary reducer includes: multiple planetary gear components, a reusable gear, and a sun gear component. The multiple planetary gear components correspond one-to-one with and are synchronously connected to the motor shafts of multiple drive motors. The reusable gear is arranged around the multiple planetary gear components and is drivenly connected to all of the multiple planetary gear components. The sun gear component is distributed within the area enclosed by the multiple planetary gear components and is drivenly connected to all of the multiple planetary gear components. The output disk and the multiplexing wheel are arranged opposite each other along the axial direction of the geared motor structure, and the edge portion of the output disk and the multiplexing wheel are fastened together. The output disk is used to connect the load.

2. The geared motor structure according to claim 1, characterized in that, The planetary reducer includes: a reducer rear flange distributed on the side of multiple planetary gear components away from the output disk, the reducer rear flange having connection holes corresponding one-to-one with the motor shafts of multiple drive motors; The plurality of drive motors are fastened to the back of the reducer's rear flange, and the motor shaft of each drive motor passes through the corresponding connection hole and is synchronously connected to the planetary gear assembly.

3. The geared motor structure according to claim 2, characterized in that, The planetary gear component includes an input flange and a planetary gear that are fastened together. The input flange is fastened to the end of the motor shaft of the drive motor. The planetary gear is connected to the reusable gear drive and is supported by a first bearing on a portion of the rear flange of the reducer where a connection hole is provided.

4. The geared motor structure according to claim 2, characterized in that, The sun gear component includes: a sun gear and an extension shaft connected axially along the geared motor structure, wherein the sun gear is driven by multiple planetary gear components; the extension shaft is distributed at one end of the sun gear and located in the area enclosed by the motor housings of multiple drive motors; the geared motor structure further includes: a coaxial fan sleeved on the extension shaft.

5. The geared motor structure according to claim 4, characterized in that, The two ends of the sun gear are rotatably supported by the output disc and the rear flange of the reducer via the second bearing and the third bearing, respectively.

6. The geared motor structure according to claim 4, characterized in that, The outer side of the motor housing of the drive motor has multiple arrayed heat dissipation fins, and the width of each heat dissipation fin gradually increases along the radial direction of the drive motor and away from the coaxial fan.

7. The geared motor structure according to claim 6, characterized in that, The geared motor structure further includes: a fan housing covering the plurality of drive motors and the coaxial fan, wherein the bottom of the fan housing has an air inlet in the area corresponding to the coaxial fan.

8. The geared motor structure according to claim 7, characterized in that, The planetary reducer further includes: a reducer housing disposed opposite to and fastened to the rear flange of the reducer, wherein the outer circumferential surface of the reducer housing has a plurality of fins arranged in an array, each fin extending along the axial direction of the reducer motor structure; The circumferential side of the fan housing covers the outer circumferential surface of the reducer housing and contacts the plurality of fins. An air duct connecting to the external environment is formed between each pair of adjacent fins and the inner circumferential sidewall of the fan housing.

9. The geared motor structure according to claim 8, characterized in that, The outer circumferential side of the reducer housing also has multiple fixed support platforms, and the circumferential side of the fan cover is fastened to the multiple fixed support platforms.

10. The geared motor structure according to any one of claims 1-9, characterized in that, The reusable wheel is driven by gears in multiple planetary gear components; the sun gear component is driven by gears in multiple planetary gear components.

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